Figure 54 Bend the sensor stop plate downward ............................................................................ 39
Figure 55 Adhere double faced adhesive tape to the lower part of the double cross stop frame (left)
and bend the stop frame upward (right) ................................................................................. 39
Figure 56 Connect the sensor stop plate and double cross stop frame and fix them with screws .. 39
Figure 57 Remove the protective film of the double faced adhesive tape and press the double
cross stop frame against the front axle ................................................................................... 40
Figure 58 Wrap the anchor ear with rubber strip ............................................................................ 40
Figure 59 Bind and lock the double cross stop plate with anchor ear ............................................ 41
Figure 60 Coaxial steering system installed ................................................................................... 41
Figure 61 Components of parallelogram steering system .............................................................. 42
Figure 62 Installation sketch of parallelogram steering system (viewing from cross section of
tractor front axle).................................................................................................................... 43
Figure 63 Fix U-shaped threaded rod and fish plate to the toe-in .................................................. 43
Figure 64 Fix the clamping plates to the front axle with a M12 threaded rod ................................ 44
Figure 65 Fix sensor assembly at the long clamping plate side ..................................................... 44
Figure 66 Install cardan joint connecting rod ................................................................................. 45
Figure 67 Install cardan joint connecting rod ................................................................................. 45
Figure 68 Connection diagram of open center hydraulic system ................................................... 46
Figure 69 Installation positions of transition unions on the hydraulic valve .................................. 49
Figure 201 The vehicle is now in manual driving mode and does not allow to be switched to auto
driving mode (Since the Line AB is not available now) ....................................................... 153
Figure 202 Display effect of screen in night mode ...................................................................... 157
Figure 203 Display effect of background with concealed grid ..................................................... 157
Figure 204 Enable the operation highlight function ................................ ................................ ..... 158
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1 General Description
This user manual provides description relating to the installation, commissioning,
operation and maintenance of AG960 AutoSteer System (as “AG960” for the
following) for agriculture machine. Appropriate operation and maintenance is vital to
the safe and reliable operation of the system.
It is important to take some time to read this manual thoroughly. The information in
this manual is current at the time of printing while the system may have slight
changes. Information and related materials are subject to change without notice.
2 Introduction of AG960 AutoSteer System
AG960 AutoSteer System (“AG960”) is designed for precision agriculture and
machinery. It takes advantage of the Global Navigation Satellite System (GNSS)
differential technology, acquiring the position information of the agricultural
machines within centimeter level, controlling the guide wheel of agricultural
machines through electromagnetic hydraulic valve. As a result, agricultural machines
can achieve automatic operation along the planned route. AG960 can be installed to
small, medium and large farming vehicles with hydraulic power steering system, such
as tractor, harvester, sprayer etc. It will enhance the operators’ work, improve the
operation accuracy and efficiency and reduce the working intensity of operators.
AG960 need to be used together with the GNSS reference station or GNSS CORS
network.
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Figure 1 Autopilots Work with GNSS (GPS/GLONASS/BDS) and Differential Reference Station
During the operation, GNSS reference station broadcasts the satellite reference
observation data via the data transceiver, and the autopilot precisely calculates the
position and speed of itself with GNSS satellite signal and reference station signal
received. Following the specified operation route, autopilot drives the
electro-magnetic hydraulic valve to realize the guidance of wheel movement and
operation route auto-tracking of the agricultural vehicles. For a single GNSS reference
station, it can serve as many autopilots as required at the same time. However, the
work area it may serve depends on the radio transmitting power of the reference
station. In case of portable reference station, the work area usually is within 3km,
while in case of stationary reference station, the work area can be up to around 20km
(The work area will be reduced accordingly when there is windbreak and unfavorable
topography between the reference station and agriculture machines in work).
This user manual introduces the components, installation, commissioning and
operation of AG960 as well as the daily maintenance and troubleshooting for common
issues of the system.
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3 Components of AG960
Item
Description
Qty.
Remarks
1.
Satellite navigation antenna
2 pcs.
Including pedestal and double faced
adhesive tape
2.
Radio receiving antenna mast
1 pcs.
3.
Radio receiving antenna pedestal
1 pcs.
Including RF cable and double faced
adhesive tape
4.
Autopilot (Controller)
1 unit
5.
Panel computer
1 unit
6.
Electro-magnet hydraulic valve
1 pcs.
Open center/ closed center
7.
CVB module
1 pcs.
Optional for closed center system
8.
Coaxial rotation direction sensor
1 pcs.
9.
3m RF cable
2 pcs.
10.
Drive harness (black end harness)
1 pcs.
Optional for 3.5m/4.5m
11.
Data harness (white end harness)
1 pcs.
3.1 Product List
AG960 AutoSteer System (“AG960”) package is as shown below.
Figure 2 Outlook of AG960 AutoSteer System (“AG960”) package
Parts and components included in the package are listed in the table below.
Table 1 AG960 AutoSteer System (“AG960”) unpacking list
Outlook of actual parts and components are given below.
Figure 3 Outlook of GNSS antenna
Figure 4 Outlook of radio antenna
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Figure 5 Outlook of navigation autopilot
Figure 6 Outlook of panel computer
Figure 7 Outlook of electromagnetic hydraulic valve
Figure 8 Outlook of CVB module (optional for closed center system)
Figure 9 Outlook of coaxial rotation direction sensor
Figure 10 Outlook of 3m RF cable
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Figure 11 Outlook of data harness (white end harness)
Figure 12 Outlook of drive harness (black end harness)
Figure 13 Outlook of Autopilot (Controller) adapter plate
Figure 14 Outlook of panel computer bracket
Figure 15 Outlook of hydraulic valve adapter plate
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Round/rectangle flanged base
Anchor ear
Double cross stop frame
Rubber strip
Figure 16 Outlook of coaxial rotation direction sensor bracket
3.2 Electrical Connection Relation
AG960 has an electric connection relation with the vehicle as shown in the figure
below.
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Figure 17 Electro-mechanical connection drawing of AG960 (open center system)
Primary antenna
Secondary antenna
Radio receiving antenna
Navigation driving box
Panel
Battery
Battery
Proportional valve
Tractor oil pump
Electric controlled hydraulic valve
Steering measuring mechanism
Steering measuring mechanism
Cartridge valve block T port
To oil tank
Oil return pipe
Oil inlet pipe
Data harness
Drive harness
To steering oil cylinder
Steering engine
The electro-mechanical connection relation of AG960 is explained below.
1) The primary antenna of the satellite navigation antenna is connected to the
“GNSS primary antenna” port of the front panel of navigation autopilot through a
3M RF cable.
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2) The secondary antenna of the satellite navigation antenna is connected to the
Item
Description
Spec.
Qty.
Remarks
1.
No-adjustable wrench
1 set
2.
Adjustable wrench
2 pcs.
3.
Inner hexagon spanner (Metric
system)
1 set
4.
Inner hexagon spanner
(Imperial system)
1 set
“GNSS secondary antenna” port of the front panel of navigation autopilot through
a 3M RF cable.
3) The radio receiving antenna is connected to the “radio antenna” port of the front
panel of navigation autopilot through a 3M RF cable.
4) Each end of the data harness (white end harness) is respectively connected to the
Autopilot (Controller) and the panel computer.
5) One end of the drive harness (black end harness) is connected to the Autopilot
(Controller) and the other end is divided into three lines each of which is
respectively connected to vehicle battery, electromagnetic hydraulic valve and
steering measuring mechanism.
4 Installation of AG960
In this chapter, it takes Dongfanghong (a tractor brand name) 904 tractor (open center
type, medium-duty), John Deere 904 tractor (open center type, medium-duty) and
Case 210 tractor (closed center type, heavy-duty) as examples to describe the process
of installing the AG960 onto the agricultural vehicles.
The process of installing AG960 can be divided into 4 steps:
1) Install electronic components
2) Install the steering measuring mechanism
3) Install the hydraulic valve group
4) Lay the harness
Step 1, 2 and 3 has no specific order and can be completed by different installation
personnel at the same time before laying the harness as step 4.
Tools required for the installation of AG960 are listed in the table below.
Table 2 Tools required for installing AG960
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5.
Phillips screwdriver (large)
1 pcs.
6.
Phillips screwdriver (small)
1 pcs.
7.
Straight screwdriver (large)
1 pcs.
8.
Straight screwdriver (small)
1 pcs.
9.
Diagonal pliers
1 pcs.
10.
Pincer pliers
1 pcs.
11.
Sharp-nose pliers
1 pcs.
12.
Measuring tape
1 pcs.
13.
Pistol drill
1 set
14.
Cutting machine
1 set
4.1 Installation of Electronic Components
To install electronic components, the agricultural machines should be placed on a
level plane, for example, flat cement surface or road surface. If it stops on an inclined
ground, error may occur in terms of the installation position and orientation
measurement of products on the vehicles and thus affect the autopilot performance.
The process of installing electronic components of AG960 can be divided into the
following 4 steps.
2) Install radio receiving antenna (including antenna pedestal, RF cable)
3) Install panel computer (including its bracket)
4) Install Autopilot (Controller) (including its adapter plate)
4.1.1 Installation of Satellite Navigation Antenna
AG960 contains two satellite navigation antennas installed to the left and right side at
the top of the driving cab of the agriculture machine respectively, where the right
antenna is the primary antenna responsible for acquiring vehicle position information
and the left one is the secondary antenna responsible for acquiring vehicle orientation
information.
The satellite navigation antenna is installed onto the vehicle according to the
following procedures.
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4.1.1.1 Position Requirement of Installing Satellite Navigation
Antenna
Two satellite navigation antennas should be installed just above the rear axle of the
vehicle as far as possible along the longitudinal direction of the vehicle, as shown in
the figure below. If this is impossible due to the geometry of the top of driving cab or
other structural constraints, the longitudinal distance from the satellite navigation
antenna to the rear axle center of the vehicle should be accurately measured during the
subsequent equipment commissioning process.
Figure 18 Electro-mechanical connection drawing of AG960 (open center system)
In the transverse direction, two satellite navigation antennas should be symmetrically
installed to the edge of the driving cab top, as shown in the figure below. It is required
that the distance between two antennas should be as large as possible, at least 1m. If
1m distance is not available at the driving cab top, antenna installation bracket should
be fabricated.
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Figure 19 Ideal position of satellite navigation antenna on the vehicle (rear view)
To install the satellite navigation antenna onto the driving cab top of the vehicle, it is
required that the mushroom head of the antenna should be as level as possible to
facilitate the receiving of satellite signal, as shown in the figure below. The RF
connector of antenna should be orientated towards the inner side as far as possible to
present a better appearance of the RF cable routing
Figure 20 The satellite navigation antenna should be horizontally installed onto the vehicle with
the RF connector at the inner side
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4.1.1.2 Fix the Antenna to the Top of Driving Cab
After installing the satellite navigation antenna at the driving cab top of the tractor is
decided, remove the protective film of 3M double faced adhesive tape on the antenna
pedestal. If the double faced adhesive tape is not adequately adhesive due to low
temperature, heat it with a lighter. Then press the satellite navigation antenna onto the
driving cab top of the vehicle according to the specified position and RF connector
orientation. Press it with force until it is securely adhered. Before pressing, make sure
the contact surface between the driving cab top and the antenna is level with little arc
and is clean without any dust and water drop, or loose connection and falling off of
the antenna may occur. To enhance the water-proof effect of the connection, apply
waterproof sealant around the pedestal of the satellite navigation antenna after
installation.
Figure 21 Remove the protective film of double faced adhesive tape on the antenna pedestal
Figure 22 Heat the double faced adhesive tape in case of low temperature
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Figure 23 Press the antenna to specified position with force
Figure 24 Slightly pull the antenna to check if it is securely fixed
Figure 25 Apply waterproof sealant to the gap between antenna pedestal and vehicle top
4.1.1.3 Route Antenna RF Cable
After the satellite navigation antenna is installed, route the 3M RF cable. One end of
the 3M RF cable is connected to the RF connector of the satellite navigation antenna
with a threaded connection. Tighten it with hand instead of pliers or other tools to
avoid damage to the RF connector of the antenna or the RF cable connector. After it is
tightened, wrap and seal it with insulating tape. Route the cable along the driving cab
top and fix it with cable tie holder with double-faced adhesive tape. Two 3M RF
cables should be neatly routed in a symmetrical way along the driving cab top and
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hang from the rear side of the vehicle after being bound with the strapping tape so as
to enter into the driving cab through the rear side or rear window.
Figure 26 Tighten the 3M RF cable to the antenna (Do not use pliers or other tools to avoid
damage to the connector)
Figure 27 Route and bind the 3m RF cable at the driving cab top
4.1.2 Installation of Radio Receiving Antenna
AG960 has only one radio receiving antenna to receive the differential information
transmitted from the Beidou reference station. The radio receiving antenna is installed
onto the tractor as described below.
4.1.2.1 Installation Position of Radio Receiving Antenna
To ensure a vast field of view, the radio receiving antenna must be mounted to the
driving cab top instead of other positions such as rear side fender, engine hood of the
vehicle. Otherwise the reference station signal may be shielded by the driving cab and
thus cause intermittent or unstable signal affecting the automatic operation.
The distance between the radio receiving antenna and any satellite navigation antenna
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must be at least 50cm to ensure that the whip rod of the radio receiving antenna does
not disturb the signal receiving field of the satellite navigation antenna. Too close a
distance may cause reduced location precision and affect the automatic operation.
4.1.2.2 Assembly and Fixation of the Radio Receiving Antenna
After the installation position of the radio receiving antenna at the driving cab top of
the tractor is decided, first assemble the antenna mast and the antenna pedestal.
During assembly, wrench can be used for tightening to prevent the antenna from
getting loose during driving of the vehicle. Remove the protective film of 3M double
faced adhesive tape on the antenna pedestal. If the double faced adhesive tape is not
adequately adhesive due to low temperature, heat it with a lighter. Then press the
radio receiving antenna onto the driving cab top of the vehicle. Press it with force
until it is securely adhered. Before pressing, make sure the contact surface between
the driving cab top and the antenna is level with little arc and is clean without any
dust and water drop, or loose connection and falling off of the antenna may occur. To
enhance the water-proof effect of the connection, apply waterproof sealant around the
antenna pedestal.
Figure 28 Assemble antenna mast and antenna pedestal
Figure 29 Tighten the antenna mast the antenna pedestal with wrench
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Figure 30 Remove the protective film of the double faced adhesive tape on the antenna pedestal
Figure 31 Press radio antenna to specified position with force
Figure 32 Slightly pull the antenna to check if it is securely adhered
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4.1.2.3 Route RF Cable of Radio Receiving Antenna
After the radio receiving antenna is installed, route the RF cable. The pedestal of radio
receiving antenna is provided with RF cable. Route the cable along the driving cab
top and fix it with cable tie holder with double faced adhesive tape. It is recommended
to bind the RF cable of radio receiving antenna together with two 3M RF cables of
satellite navigation antenna and hang them from the rear side of the vehicle as a whole
so as to enter into the driving cab through the rear side or rear window. In this way,
the cable routing is neat and tidy.
Figure 33 Fix and bind the RF cables on the driving cab top and lead them into the driving cab
from the rear side window
4.1.3 Installation of Panel Computer
The panel computer is the user operation interface of AG960 and it is installed onto
the vehicle according to the following procedures.
4.1.3.1 Installation Position of Panel Computer
The panel computer must be installed inside the driving cab to avoid rain. Considering
that usually the driver operates with right hand and gets on or off the vehicle from the
left side of the driving cab, it is recommended to install the panel computer to the
right side or right front position (consult the driver before installation). The screen of
the panel computer should have a proper distance from and a proper installation angle
for the driver to facilitate driver’s operation.
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4.1.3.2 Fixation of Round Plate Knob
Fix the round plate knob of the panel computer bracket to the specified installation
position in the driving cab with electric tool and 3 outer hexagon self-tapping screws
(ST4.2×32).
Figure 34 Fix and bind the RF cables on the driving cab top and lead them into the driving cab
from the rear side window
Figure 35 Outer hexagon self-tapping screw
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Figure 36 Fix the round plate knob of the panel computer bracket with electric tool and outer
hexagon self-tapping screws
4.1.3.3 Fixation of Rectangle Plate Knob
Fix the rectangle plate knob of the panel computer bracket to the rear cover of the
panel computer with 4 cross recessed pan head screws. To prevent the panel computer
from getting loose during vibration and bumping, spring washers together with flat
washers should be used during fixation.
Figure 37 Rectangle plate knob of panel computer bracket
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Figure 38 Cross recessed pan head screws, spring washers and flat washers for fixing rectangle
plate knob
Figure 39 Fix the rectangle plate knob of panel computer bracket to the rear cover of the panel
computer with cross recessed pan head screws
4.1.3.4 Installation of the 3G Antenna
For the autopilot which requires information remote control, 3G antenna is needed.
Figure 40 Installation of 3G antenna
4.1.3.5 Installation and Fix of the Panel Computer
Place the panel computer at a proper angle and connect the round plate knob and the
rectangle plate knob with the link rod of the panel computer bracket. Fix with force by
wrench if necessary to make sure that the panel computer will not drop or fall due to
the bumping or vibration of vehicle.
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Figure 41 Connect the round plate knob and the rectangle knob with the link rod
Figure 42 Panel computer properly installed
4.1.4 Installation of Autopilot (Controller)
As a core component of the autopilot, Autopilot (Controller) is used to realize the
location, navigation, control and drive of the vehicle. The Autopilot (Controller) is
installed inside the driving cab according to the following procedures.
4.1.4.1 Installation Position of Autopilot (Controller)
The Autopilot (Controller) is installed inside the driving cab in an orientation parallel
to the coordinate system of the vehicle (Vehicle coordinate system takes the rear axle
center as the origin O, the rear axle as X axis, the longitudinal axle as the Y axis and
the vertical rise from the rear axle center to the driving cab top as the Z axis) (Any X,
Y, Z edges perpendicular to each other starting from any angle of the Autopilot
(Controller) should be respectively parallel with the X, Y, Z axis of the vehicle
coordinate system).
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Installation orientation of autopilot is
parallel to the tractor
Installation orientation of autopilot is
parallel to the tractor
Installation orientation of autopilot is
NOT parallel to the tractor
Installation orientation of autopilot is
NOT parallel to the tractor
Figure 43 Installation orientation of autopilot should be parallel to the vehicle (CORRECT)
Figure 44 Installation orientation of autopilot should be parallel to the vehicle (WRONG)
Select a relatively flat plane in the driving cab as the installation surface of the
Autopilot (Controller), for instance, the driving cab floor, the fender of left and right
rear wheels of the driving cab, rear wall of the driving cab etc. It should be installed
far away from the engine to the greatest extent and it is prohibited to install the
driving box directly onto engine components. The installation position should ensure
the driving box is not easy to be trodden on or hit by control stick. Sufficient space
should be reserved for the outgoing cable of Autopilot (Controller) (at least 10cm in
the outgoing cable direction of the Autopilot (Controller)). The installation position
should provide relatively large bending radius for the harness and ensure relatively
low stress at the end of the harness.
4.1.4.2 Fix Autopilot (Controller) at Specified Position
Connect the Autopilot (Controller) and its adapter plate with four cross countersunk
screws (M6×12). Then fix the adapter plate of Autopilot (Controller) to the
installation surface in vehicle driving cab with electric tool and 4 outer hexagon
self-tapping screws (ST6.3×19)
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Figure 45 Connect the autopilot and the adapter plate with cross countersunk screws
Figure 46 Proper installation position in the driving cab
Figure 47 Fix the adapter plate to the installation surface with self-tapping screws and electric tool
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4.2 Installation of Steering System
Sensor stop plate
Sensor body
Round/rectangle flanged base
Anchor ear
Double cross stop
Rubber strip
4.2.1 Installation of Coaxial Steering System
AG960 is provided with coaxial steering system as standard, which can be easily
installed to most farming machines (mainly various farming machines with
four-wheel drive). The coaxial steering system consists of coaxial steering sensor
(including senor body, sensor stop plate) and its bracket (round flanged base,
rectangle flanged base, double cross stop frame, anchor ear and rubber strip), which
are shown in the following two figures.
Figure 48 Coaxial steering sensor
Figure 49 Coaxial steering sensor bracket
The coaxial steering system is installed to the left front axle of the tractor (from the
view of the driver) according to the following procedures.
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4.2.1.1 Select a Suitable Sensor Seat Based on the Knuckle Flange
Type of the Tractor
Observe the shape and screw number of the flange of guide wheel knuckle. If the
knuckle flange is round and has three screws as shown in the figure below, use the
round flanged base of the sensor provided in the package. If the knuckle flange is
rectangle and has 4 screws, use the rectangle flanged base of the sensor provided in
the package. If it is neither type of the above mentioned (usually found in various
agriculture machine with two-wheel drive), refer to section of “Install steering system
of parallelogram type”.
Figure 50 Tractor knuckle and suitable sensor seat
4.2.1.2 Assembly of the Steering Sensor and Sensor Flanged Base
Select proper sensor flanged base and assemble the steering sensor and the sensor
flanged base with 5 cross countersunk screws (M4×8).
Figure 51 Assemble steering sensor and sensor flanged base
4.2.1.3 Assembly of the Steering Sensor and Sensor Flanged Base
Remove the screws on the knuckle flange of tractor guide wheel with socket spanner
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and put the steering sensor with flanged base assembled onto the knuckle of tractor
guide wheel. Align the rotation center of the steering sensor with that of tractor
knuckle. The outgoing line of the steering sensor should point inward (toward the
engine side) and be parallel with the front axle to facilitate the routing of cables. If
there is grease filler protruding from the knuckle flange at the guide wheel affecting
the installation of the steering sensor, it may be removed. Place the steering sensor
properly and re-assemble and tighten the screws.
Figure 52 Remove the screws on the knuckle flange with a socket spanner
Figure 53 Place the assembled steering sensor onto the knuckle flange and secure it with original
screws
4.2.1.4 Installation of Double Cross Stop Frame
Bend the stop plate of the sensor 45°downward with a sharp-nose plier. Place the
double cross stop frame levelly on the tractor axle and bend it 45°upward so that it
can overlap and connect the bent part of the sensor stop plate. Secure them with two
screws. In case the overlapped part is not long enough due to too much vertical height
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difference between the steering sensor and tractor axle, it may also be secured with
one screw only.
Note: When bend the sensor stop plate downward, make sure the bending position has
certain distance from three fastening screws of tractor knuckle to prevent interference
during wheel steering and damages to the equipment.
Figure 54 Bend the sensor stop plate downward
Figure 55 Adhere double faced adhesive tape to the lower part of the double cross stop frame (left)
and bend the stop frame upward (right)
Figure 56 Connect the sensor stop plate and double cross stop frame and fix them with screws
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4.2.1.5 Fix the Double Cross Stop Frame
Fix the double cross stop plate to vehicle front axle with anchor ear and rubber strip.
First remove the protective film of the double faced adhesive tape on the lower part of
the double cross stop frame and adhere it to the corresponding position on front axle
to prevent stop frame from moving during locking the anchor ear. Then bind and lock
it with the anchor ear. During binding, please note that the anchor ear should pass the
spacing slot on the double cross stop plate. Lock the anchor ear adequately with a
straight screwdriver to prevent the double cross stop plate from moving or loosening
during the operation and bumping of the tractor.
Figure 57 Remove the protective film of the double faced adhesive tape and press the double cross
stop frame against the front axle
Figure 58 Wrap the anchor ear with rubber strip
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Figure 59 Bind and lock the double cross stop plate with anchor ear
4.2.1.6 Bind Steering Senor Cable
Figure 60 Coaxial steering system installed
4.2.1.7 Check the Motion of the Steering System
After the device is installed, start the engine, repeatedly turn the guide wheel to the
left and right side to the maximum extent with vehicle staying at the same location
and observe the coaxial steering system. Make sure that during the wheel rotation, the
steering system does not interference with or impact on the oil tubing mechanism (in
particular, the sensor stop plate should have no contact with the bottom plate flange
and screws), the sensor seat can turn freely along with the knuckle and the sensor
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itself is locked to the front axle by protruding sensor stop plate and does not turn at
Long/short clamping plate
Swing rod with holes in pattern
Sensor body
U-shaped threaded rod
Fish plate
Front axle clamping
Sensor assembly
Cardan joint
Cardan joint connecting rod
all.
4.2.2 Installation of Parallelogram Type Steering System
If the coaxial steering system cannot be installed to some types of tractors, for
example, when there is only one master screw at the knuckle flange of the guide
wheel, or there is high protrusion that cannot be removed at the knuckle flange,
contact the support team of Tersus to replace steering system of parallelogram type.
Technical Support: support@tersus-gnss.com
Figure 61 Components of parallelogram steering system
The parallelogram steering system consists of sensor assembly (including sensor body,
swing rod with holes in pattern), axle clamping plate (including long clamping plate,
short clamping plate and M12 connecting threaded rod), toe-in U-groove (including
U-shaped threaded rod, fish plate) and cardan joint connecting rod (including cardan
joint and M10 connecting threaded rod).
One end of the cardan joint connecting rod connects the toe-in and the other end
connects the swing rod with holes in pattern. When the guide wheel moves, the toe-in
drives the sensor to rotate via the connecting rod and the swing rod so as to measure
the guide wheel angle, as shown in the figure below (viewing from the cross section
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of tractor front axle)
Figure 62 Installation sketch of parallelogram steering system (viewing from cross section of
tractor front axle)
The parallelogram steering system is installed to the left front axle of the tractor
(viewing from the driver) according to the following procedures.
4.2.2.1 Install Toe-in U-Groove
Fix the U-shaped threaded rod and fish plate onto the toe-in link rod at a position near
the hinged point. Tighten the nuts at both sides simultaneously.
Figure 63 Fix U-shaped threaded rod and fish plate to the toe-in
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4.2.2.2 Install Axle Clamping Plate
Fix the short and long clamping plates to tractor front axle with a M12 threaded rod. It
is required that two clamping plates must have certain deformation to maintain
necessary clamping force exerted on tractor front axle (the long clamping plate can be
placed in the front or rear of axle as per the actual conditions).
Figure 64 Fix the clamping plates to the front axle with a M12 threaded rod
4.2.2.3 Install Sensor Assembly
Install the sensor assembly at the long clamping plate side.
Figure 65 Fix sensor assembly at the long clamping plate side
4.2.2.4 Install Cardan Joint Connecting Rod
Install cardan joint connecting rod, with one end fixing toe-in U-groove and the other
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end fixing swing rod with holes in pattern. The cardan joint connecting rod should be
fixed with two M10 nuts to prevent the connecting rod from moving or loosening
during the operation and bumping of the tractor.
Figure 66 Install cardan joint connecting rod
4.2.2.5 Adjust the Parallelogram
Adjust the length of the cardan joint connecting rod and the connecting holes of the
swing rod with holes in pattern to pay attention to below.
The swing rod with holes in pattern (Line AB) is parallel with the line between
the toe-in hinged point and the rotation center of guide wheel (CD line)
Cardan joint connecting rod (BC line) is parallel with the line between the
rotation center and the sensor center (AD line)
OR
The length of AB equals that of CD; 2) the length of BC equals that of AD. If
taking equal length as standard, the difference of lengths of both lines should be
no more than 1cm.
Figure 67 Install cardan joint connecting rod
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4.2.2.6 Check the Motion of Pallelogram Mechanism
Steering wheel
Tractor steering gear
Navigation valve group
Steering actuator
Oil
Oil
When the parallelogram is adjusted properly, tighten the fastening screws at both ends
of cardan joint connecting rod. Start the engine, continuously turn the guide wheel to
the left and right side to the maximum extent and observe the parallelogram
mechanism. Make sure that the parallelogram mechanism do not interfere with or
impact on the oil tubing mechanism of the vehicle during the rotation, and ∠ABC
will not be straightened or get close to 180°, nor will the parallelogram be overturned.
4.3 Check the Motion of Pallelogram Mechanism
The steering system for precision agriculture machines mainly includes two types,
named as open center system and closed center system. Taking John Deere 904 tractor,
Dongfanghong 904 tractor and Case 210 tractor as example, this manual describes the
installation process of hydraulic valve group of open center and closed center
systems.
4.3.1 Install Hydraulic Valve Group of Open Center System
The hydraulic valve group of open center system has such mechanical connections to
the agriculture machine as shown in the figure below.
Figure 68 Connection diagram of open center hydraulic system
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The open center hydraulic system has the following connections.
Item
Description
Specification
Qty.
Legend
Remarks
1.
Transition
union
G3/8-M18x1.5
5
2.
Tee union
CF08
2
3.
Tee union
CF06
2
4.
Quarter bend
2F908
1
5.
Quarter bend
2F906
2
6.
High pressure
M18x1.5H-90/13/16A
3
Ports L, R, T of the hydraulic valve is respectively connected to ports L, R, and T
of the steering gear via a tee union.
Disconnect existing connection between the pressure output port P of vehicle
power steering pump and port P of steering gear, and then connect the port P of
hydraulic valve to port P of power steering pump and port P1 of hydraulic valve
to port P of steering gear.
The pipe fittings list of different agriculture machine models can be obtained from the
Tersus. For example, the pipe fittings list for John Deere 904 tractor is given below.
Table 3 Pipe fittings list for John Deere 904 tractor
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oil pipe
-L1.2
7.
High pressure
oil pipe
M18x1.5H-90/11/16A
-L1.2
2
The installation process of hydraulic valve group is described below.
4.3.1.1 Check the Operating Conditions of Existing Hydraulic Power
Steering System of Tractor
Before installing hydraulic valve group, check the operating conditions of the
hydraulic power steering system of tractor.
Switch on the engine, and set the engine speed to idling position.
Continuously turn the steering wheel left and right for preliminary inspection. If
the steering wheel is too difficult to turn, it indicates insufficient pressure of the
power steering pump. If it is too easy to turn, it indicates ineffective return spring
of steering gear. If the steering wheel has idle travel, it indicates leakage in the
steering gear, or mechanical gap between front or rear angle axles of steering oil
cylinder, or mechanical gap between two end shafts of toe-in. In a word, idle
travel is related to mechanical gap.
Check if the power steering pump is normal. Turn the steering wheel with hand
Check if the steering gear is normal. Turn the steering wheel with hand when the
when the tractor stays at the same position. If the guide wheel can turn left or
right to the maximum extent, it means the hydraulic steering system of the
agriculture machine is normal. If it requires force to turn the steering wheel with
hand, it indicates that the pressure of the hydraulic power steering pump is critical
and it is difficult to turn when the hydraulic valve is installed. If it is hard to turn
the steering wheel with hand, and the guide wheel can manage to turn with the
accelerator pressed to the maximum extent but still is unable to reach the limiting
position at both left and right sides, it means the hydraulic power steering system
of this tractor is nearly ineffective, and it is impossible to install the hydraulic
valve. In this case, repair the power steering pump of the tractor before the
autopilot is installed. Usually the power steering pump will be replaced.
tractor stays at the same position. When the steering wheel turns to the maximum
extent at both left and right sides, release the steering wheel and observe if it can
return freely. If the steering wheel does not return, it means the steering gear is
malfunctioned and it is impossible to install the hydraulic valve. Repair the
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steering gear before the installation process.
Check the mechanical gap of steering oil cylinder. Turn the steering wheel with
hand when the tractor stays at the same position and observe if there is oversized
gap at the connections of both ends of the steering oil cylinder and the tractor
axles causing dead running of oil cylinder. If any, eliminate the gap before the
installation process.
Check the mechanical gap at toe-in of tractor. Turn the steering wheel with hand
when the tractor stays at the same position and observe if there is oversized gap
between the toe-in and the connection shaft of left & right guide wheels causing
dead running of toe-in. If any, eliminate the gap before the installation process.
The positions of oil ports are shown in the figure below. Mount transition unions to
ports P, P1, L, R, and T of the hydraulic valve.
Note: bonded washer should be used for the installation.
Figure 69 Installation positions of transition unions on the hydraulic valve
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Figure 70 Hydraulic valve (left) and transition unions (right)
Figure 71 Install the transition unions to corresponding ports on the hydraulic valve
4.3.1.3 Install the Hydraulic Valve to Tractor
Hang and mount the hydraulic valve to the specified position on the tractor with an
L-shaped adapter plate, such as the left front and right front of driving cab, inside the
engine compartment, inside the driving cab etc. Either threaded or welded connection
is OK. There is no special requirement for the orientation of valve body, but it is
required to make sure that the valve body does not swing after being mounted and
sufficient space is available to install pipelines.
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Figure 72 Determine the connection position of L-shaped adapter plate on tractor (left), hang
and tighten hydraulic valve (right)
4.3.1.4 Connect Port P of Power Steering Pump and Port P of
Hydraulic Valve
Disconnect the existing connection at port P of power steering pump (pressure output
port) and connect it to port P of hydraulic valve with transition union and oil pipe. The
existing connection can be disconnected directly from port P of power steering pump
or the other end of oil tube of port P of power steering pump, whichever is convenient
for the installation process.
Figure 73 Disconnect existing connection at port P of power steering pump, mount transition
union, and connect it to port P of hydraulic valve with oil pipe
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4.3.1.5 Connect Hydraulic Valve and Ports L, R, T of Steering Gear
Respectively with Tee Unions
Disconnect existing connections of ports L (also A), R (also B), T of the steering gear,
and replace them with tee union for re-connection. The connection can be
disconnected from the steering gear or the other end of the oil pipe to the steering gear,
whichever is convenient for the installation process.
Figure 74 Ports P, T, L (A), R (B) of steering gear
Figure 75 Disconnect existing connection at ports L/R/T of steering gear, connect a tee union,
and then connect it to ports L/R/T of hydraulic valve
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4.3.1.6 Connect Port P1 of Hydraulic Valve to Port P of Steering
Gear
Connect port P1 of hydraulic valve and port P of steering gear.
4.3.1.7 Sort out Oil Pipes
Sort out oil pipes and arrange the exposed oil pipes in a proper way so as to present a
beautiful and tidy appearance. Make sure to prevent the contact of oil pipe with high
temperature components such as engine exhaust pipe.
Figure 76 Sort out oil pipe
4.3.1.8 Check the Actuation Function of Hydraulic Valve
Start the engine and maintain a speed of 1000rpm~1500rpm in order to confirm the
actuation function of hydraulic valve.
Check for oil leakage. Check if there is oil spray or leakage around the hydraulic
valve and the connection between oil pipe and tractor body. If any, stop the
engine immediately to check if the connector is secure, if the washer is in place,
correctly used or has any damage or if the connector has any damage. If any,
repair in time.
Check if hand turning of steering wheel is normal. Turn the steering wheel by
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hand with tractor staying at the same position and observe if the turning process
is difficult. If yes, it indicates the pressure of existing hydraulic power steering
system is critical and the autopilot of agriculture machine will not work well. It
can be improved by repairing or replacing the power steering pump. Check if the
steering wheel rotates in the same direction with the guide wheel. If it rotates in a
reverse direction, exchange L and R oil pipes.
Check if the hydraulic valve functions normally. Press the hand pressing point at
both ends of the hydraulic valves with a tool. First press the left one to check if
the guide wheel of tractor can rapidly turn to the maximum extent at the left side.
Then press the right one check if the guide wheel of tractor can rapidly turn to the
maximum extent at the right side. Test repeatedly for several times. When the
pressing point is pressed, if the guide wheel turns at a very slow speed or is
difficult to pass the middle point, it means the hydraulic system is abnormal. It
may be because the pressure of power steering pump of tractor is too critical or
the hydraulic valve or oil line has problem. In this case, press the accelerator
pedal to the utmost and check if there is obvious improvement of the response
speed. It is also recommended to adjust the main knobs of the hydraulic valve,
including system pressure etc. to check if the response is improved.
Figure 77 Start the engine and press the pressing points at both ends of the proportional valve
to observe the actuation capability of the guide wheel
4.3.2 Installation of Closed Center Hydraulic Valve System
The mechanical connections of closed center hydraulic valve system on the tractor are
as shown in the figure below.
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Oil return pipe
Oil inlet pipe
Steering control valve group
Load-sensitive
Tractor operating oil pump
Manual/Auto
Switchover sensor oil pipe
To steering oil tank
Figure 78 Connection diagram of closed center hydraulic system
Taking Case 210 tractor for example, the hydraulic valve group of closed center
system should be installed according to the following procedures.
4.3.2.1 CheckRelevant Oil Ports
The operating oil pump is located at the rear side of the tractor. Replace the end caps
at ports P, T, LS with transition unions, as shown in the figure below.
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Figure 79 Locate ports P, T and LS at the rear axle
Figure 80 Locate ports P and LS
Figure 81 Locate port T
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Figure 82 Replace the end caps of ports P and LS with transition union
Figure 83 Replace end cap at port T with transition union
4.3.2.2 Install Hydraulic Valve System
Fix the hydraulic valve group to the vehicle with an L-shaped adapter plate.
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Figure 84 Connect ports P, T, LS at the rear axle of agriculture machine to hydraulic valve
with oil pipe
Figure 85 Connect hydraulic valve and CVB module with oil pipe
Similar to the open center type agriculture machine, check the operating conditions of
steering system of the agriculture machine before installing hydraulic valve group.
After the hydraulic valve group is installed, check the operating condition of
hydraulic valve group.
4.4 Routing of Cables
After the installation of electronic assemblies, steering system and hydraulic valve
group, cables should be routed to complete the electrical connection between the
components and assemblies of autopilot.
The cables are routed around the Autopilot (Controller). The front panel of Autopilot
(Controller) is shown in the figure below.
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Figure 86 Outlook of front panel of navigation driving box
The connections of various ports at the front panel of Autopilot (Controller) are as
follows.
GNSS primary antenna port. It is connected to the right satellite navigation
antenna at driving cab top of the vehicle via a 3M RF cable.
GNSS secondary antenna port. It is connected to the left satellite navigation
antenna at driving cab top of the vehicle via a 3M RF cable.
Power & drive port. It is connected to the 23-pin vehicle standard connector
terminal of drive harness (black end harness). The other end of drive harness
(black end harness) is divided into three parts, namely “battery terminal”,
“hydraulic valve drive terminal” and “steering system terminal”, respectively
connecting to vehicle battery, electromagnetic hydraulic valve and steering
system.
Panel computer port. It is connected to the 23-pin vehicle standard connector
terminal of data harness (white end harness). The other end of data harness (white
end harness) is connected to the panel computer via a round aviation connector.
Bluetooth antenna port. It is not used in this product and is blocked with an end
cap.
Radio antenna port. It is connected to the RF connector of the radio antenna that
hangs into the driving cab.
The cables are routed in the following order.
RF cables
Data harness (white end harness)
Drive harness (black end harness)
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4.4.1 Routing of RF Cables
4.4.1.1 Connect Radio Antenna
For the radio receiving antenna at the driving cab top, the corresponding RF cable is
connected the RF plug marked with “Radio antenna” on the front panel of Autopilot
(Controller). Tighten it with hand. Never use any tool for tightening to prevent
damages to the connector.
Figure 87 Connect radio antenna
4.4.1.2 Connect Satellite Navigation Antenna
The satellite navigation antenna at the right side of driving cab top is the primary
antenna, and its RF cable is connected to the RF plug marked with “GNSS primary
antenna” on the front panel of Autopilot (Controller). Tighten it with hand. Never use
any tool for tightening to prevent damages to the connector. The satellite navigation
antenna at the left side of driving cab top is the secondary antenna, and its RF cable is
connected to the RF plug marked with “GNSS secondary antenna” on the front panel
of Autopilot (Controller). Tighten it with hand. Never use any tool for tightening to
prevent damages to the connector.
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Figure 88 Connect satellite navigation antenna
4.4.1.3 Sort out and Bind RF Cables
After connecting, sort out and bind the RF cables. Note that the bending radius of
cables should not be too small to prevent damaging the cables.
4.4.2 Routing of Data Harness (White End Harness)
One end of the data harness (white end harness) is white 23-pin vehicle standard
connector (female) and the other end is connected to the terminal of the panel
computer. In addition, two lines are divided from the root of the white 23-pin vehicle
standard connector, where the 4-pin round connector is the interface for external radio
and the 11-pin round connector is a general extended port. If external radio or other
external communication device is required to receive data from Beidou reference
station, it should be connected with the 4-pin round connector (when external
communication device is used, GNSS-RTK data source should be provided at the user
interface). The general extended port contains 12V power supply for external
extension equipment, RS232 serial port, CAN bus interface, digital IO interface and
other common vehicle bus interface, and it can be used to communicate with
agriculture machine ECU with electric control system, collect status information of
agriculture machine, issue commands of agriculture machine movement, and connect
other intelligent farm tools for variable operation etc.
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Figure 89 White 23-pin vehicle standard connector terminal of data harness
Figure 90 Panel computer connector terminal of data harness
Figure 91 External radio interface terminal (left) and general extended terminal (right) of data
harness
The data harness is routed according to the following procedures.
4.4.2.1 Connect Autopilot (Controller)
Insert the white 23-pin vehicle standard connector (female) at the end into the white
23-pin connector (male) on the Autopilot (Controller) (The connector is marked with
text “Panel computer” on the panel). When the plug is in place, the locking device
will be locked with a clear click, which means the connection is completed. Make
sure the locking device is locked, or it may cause damage when the equipment is
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powered on due to bad contact.
Figure 92 Insert white 23-pin connector (female) of data harness into white 23-pin connector
(male) of Autopilot (Controller)
4.4.2.2 Connect Panel Computer
Select appropriate routing to connect the connector for panel computer to
corresponding interface on the panel computer. The cable route should be along the
edge of driving cab as far as possible to prevent the driver from kicking or tripping
during operation, and should be far away from various operating levers and easy to be
bound.
Figure 93 Connect data harness and panel computer
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Figure 94 Connect data harness and panel computer
4.4.2.3 Sort Out and Bind Harness
Bind the harness routed. Fold and bind the excessive part.
4.4.3 Routing of Drive Harness (Black End Harness)
One end of the drive harness is a black 23-pin vehicle standard connector (female)
and the other end is divided into three lines respectively connecting the agriculture
machine battery, electromagnetic hydraulic valve and the steering system. The
terminal connected to vehicle battery extends another line at the root of the harness to
connect a gourd-shaped switch with LED light for switching the entire machine on
and off.
Figure 95 Black 23-pin connector end of drive harness
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Figure 96 Battery connector (left) and power supply switch (right) of drive harness
Figure 97 Hydraulic valve connector (left) and steering system connector (right) of drive harness
The drive harness is routed according to the following procedures.
4.4.3.1 Connect Autopilot (Controller)
Insert the black 23-pin connector (female) at the end into the black 23-pin connector
(male) on the Autopilot (Controller) (The connector is marked with text “Power &
drive” on the panel). When the plug is in place, the locking device will be locked with
a clear click, which means the connection is completed. Make sure the locking device
is locked, or it may cause damage when the equipment is powered on due to bad
contact.
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Figure 98 Insert black 23-pin connector (female) of drive harness into black 23-pin connector
(male) of Autopilot (Controller)
4.4.3.2 Connect Electromagnetic Hydraulic Valve
Select proper routing to connect the hydraulic valve drive terminal and hydraulic
sensor terminal of drive harness to two electromagnetic valve plugs of the hydraulic
valve and the pressure sensor seat respectively. During connection, two drive
terminals of the harness can be arbitrarily connected to two drive seats of the
hydraulic valve (if it is wrong, it can be identified during the commissioning later. In
such case, exchange them.)
Note: The fastening screws on drive terminals should be firmly tightened, or bad
contact may occur, thus damaging the drive circuit of hydraulic valve in the Autopilot
(Controller).
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Figure 99 Mount water-proof rubber ring to the hydraulic valve drive terminal of drive harness
Figure 100 Mount drive terminal to the electromagnetic socket of hydraulic valve
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Figure 101 Fix hydraulic drive terminal with screws
Figure 102 Connect pressure sensor terminal
4.4.3.3 Connect Steering Measuring Mechanism
Select suitable routing to connect the drive harness connector for steering measuring
mechanism (8-pin round connector) to the steering measuring mechanism. It should
be noted that there is a free space with certain angle between the front axle and
vehicle body as the steering measuring mechanism is fixed to the front axle of guide
wheel of the agriculture machine.
Therefore, during routing and binding process, sufficient free space should be
provided for this section of harness to prevent the cable being pulled apart. In addition,
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as the 8-pin round connector is heavy, it should be located as close to the engine
structure as possible to be bound beside the engine. In this way, it can prevent the
connector from swinging during operation and thus causing damages due to
mechanical fatigue. When it is connected, seal the connector with insulating tape.
Figure 103 Connect pressure sensor terminal
4.4.3.4 Connect Battery
Do not connect the battery until the cables for all other components are connected.
Select suitable path to route the connecting terminal for battery to near the battery.
Pay attention to the polarity of the battery. Connect the black terminal marked with
“Battery -” of the drive harness to the negative pole of the battery (“-” is engraved
near the negative pole of battery) and connect the red terminal marked with “Battery +”
of the drive harness to the positive pole of the battery (“+” is engraved near the
positive pole of battery). Remove the nuts at the positive and negative poles of battery,
connect corresponding terminals of drive harness and secure the connection. If the
terminals of drive harness are incompatible with the screws and nuts at the positive
and negative poles of battery, gaskets may be added.
When selecting the routing, as a priority, lead the cable out from gaps at the driving
cab bottom and try to avoid the driving cab door. When the cable is out from the
driving cab bottom, lead the cable to the battery along the engine. Note: avoid the
high temperature zone such as exhaust pipe of engine, to prevent burn of cable. The
cable part inside the driving cab should be routed along the edge of the driving cab to
prevent driver from kicking or tripping and be far away from various operating levers.
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Connecting cable between batteries
To equip-potential
large metal structure of
vehicle
To alternator and starter
Battery 1#
Battery 2#
To negative (-) pole of
autopilot power supply
To positive (+) pole of
autopilot power supply
Figure 104 Connect battery connecting terminal of drive harness to corresponding position on
battery and secure the connection
If the agriculture machine uses two 12V batteries in serial to supply a 24V power, the
24V power supply cannot be directly used for the device, or abnormal operation of or
damage to the equipment may occur. In this case, the power supply should be
connected as shown in the figure below.
Figure 105 Power connections for the device on agriculture machine using 24V power supply
Note: The aluminum casing of the Autopilot (Controller) of the autopilot is directly
connected to the negative wire of battery connecting terminal on the drive harness.
During use, try to directly contact the casing of Autopilot (Controller) with big metal
piece of the tractor so as to achieve better grounding. Moreover, the autopilot has
been designed with inverse connection protection. But the installation personnel
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should do their best to ensure correct connection of battery to prevent damage to the
equipment.
4.4.3.5 Sort Out and Bind the Harness
Bind the harness routed. Fold and bind the excessive part. Cables routed along the
inside and outside of the driving cab and the engine as well should be bound to the
vehicle structure or existing harness at proper position to present a neat and tidy
appearance. When the harness is bound, arrange the gourd-shaped switch at a place
easily accessible for the driver.
Figure 106 Bind the harness (1)
Figure 107 Bind the harness (2)
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5 Commissioning the AutoSteer Systems
When the AG960 Auto Steering System is installed, commissioning is required to
make sure that the performance of the autopilot can satisfy the operation requirement
before the product is delivered to the user. The commissioning is divided into the
following 5 steps.
Power on the equipment
Check the version of the program
View the self-checking information of equipment
Perform equipment setting-up
Calibrate the equipment.
More details can be found in the following sections.
5.1 Power on Equipment
Prior to the power-on of the equipment, measure the battery voltage with a multimeter.
If it is less than 12V, the tractor is under voltage. Start the engine to charge battery for
certain time before the commissioning. This is to prevent the battery in under voltage
status from continuously supplying power to the equipment and thus causing lack of
power to start the engine or damage to the battery.
Press the gourd-shaped switch with hand to power on the equipment. When the
gourd-shaped switch is pressed, the LED indicator on the switch turns on (blue).
Observe that 8 LED indicators on the cover of the Autopilot (Controller) are all on
(red or green) and the screen of panel computer is lightened too. Press the gourd
switch again and the equipment is powered off. The LED indicators on the
gourd-shaped switch and the Autopilot (Controller) turns off and the screen of panel
computer turns off (The screen of panel computer is dependent on the model of the
provided computer. If panel computer with lithium battery is provided, the panel
computer should be turned on or off separately).
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Figure 108 The LED indicator on gourd-shaped switch is off before power-on (left) and is on after
power-on (right)
Figure 109 The LED indicators on Autopilot (Controller) are off before power-on (left) and is on
after power-on (right)
Figure 110 The panel computer screen is off before power-on (left) and is on after power-on
(right)
When the panel computer is switched on, the screen will display boot animation.
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Figure 111 Initializing icon of AG960 on Display
When the initializing animation is over, the login screen is displayed.
Figure 112 Login screen of panel computer
There is a pull-down menu at the right bottom corner of the login screen, which will
display “User” as default. Directly touch the “Agree” button beside “User” to enter
the user interface directly. Touch the pull-down menu to select “Technical Support” or
“Developer”. Different login will require different operating authorization for the
equipment.
User interface. No password is required. Directly touch “Agree” to log in. All
normal operation can be completed in the user interface.
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Figure 113 Pull-down menu
Technical support interface. Technical support password is required, which can be
obtained from the distributor of autopilot. The commissioning and calibration,
diagnosis and troubleshooting of the system can be performed in the technical
support interface.
Figure 114 Select technical support
Developer interface. Developer password is required, which is for the
development and test of the product and is not available to the technical support
personnel and users.
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Figure 115 Password input box
To perform commissioning of the system, the technical support password is required
to enter the technical support main interface as shown in the figure below. The main
interface is divided into 6 display zones as below.
Left side: main menu zone
Lower part: instrument panel zone
Right side: shortcut keys operation zone
Upper part: display adjustment zone
Middle: operation zone
MANUAL/AUTO: switchover button.
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Item
Zone
Icon
Description
Function/Meaning
1.
Main
menu zone
Manufacturer
information
Touch this icon and a small window will
pop up to display the manufacturer
information, product information and
program version of the equipment.
2.
Self-test
Touch this icon and a small window will
pop up to display the self-diagnosis
information to indicate if every component
and assembly works well.
3.
Settings
Touch this icon to enter “Settings” screen
to perform system setting, main machine
setting, agriculture machine setting, farm
tool setting and program updating. (Only
agriculture machine configuration and farm
tool configuration can be viewed in User
interface.)
Display adjustment zone
Shortcut keys
operation zone
Instrument panel zone
MANUAL/AUTO
switchover button
Main menu zone
operation zone
Figure 116 Main interface of technical support
Detailed explanations about the 6 zones are given below.
Table 4 Main interface of AG960 autopilot display
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4.
Calibration
Touch this icon to enter the “Calibration”
screen. When the system calibration is
completed, the equipment can be delivered
to the user for use. (This icon is ineffective
in User interface).
5.
Task
Touch this icon to enter the “Task” screen,
where it is possible to set information
relating to agriculture machine, driver and
plot, establish operation task, load
operation task and perform routine
management of operation tasks.
6.
Remote interaction
Touch this icon to enter “Remote
interaction” screen. (This icon is ineffective
in User interface).
7.
Instrument
panel zone
Satellite number
To indicate the number of navigation
satellites from which the signals can be
received currently.
8.
Radio status
To indicate whether the radio can receive
signals from Beidou reference station. Red
light means no reference station signals are
received while green light means signals
received. The strength of reference station
signals received is indicated at the right
side where full block is the most strong.
9.
Differential state
To indicate if now it is in centimeter level
high precision RTK positioning status. Red
light means it is not in RTK status and
green light means it is in RTK status. The
signal strength symbol at the right side
indicates the connection status of 3G
network.
10.
Vehicle speed
To indicate current speed in m/s.
(The vehicle speed is shown in AP/h in
User interface).
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11.
Vehicle direction
To indicate current direction the vehicle is
heading, with 0° and 360° representing
north, 90° east, 180° south and 270° west.
(In user interface, the direction is indicated
with text “east, south, west, north,
southeast, southwest, northeast and
northwest”.)
12.
Lateral deviation
The most important information displayed.
To indicate the error of current autopilot
process, i.e. the lateral distance between
vehicle rear axle center and current Line
AB in meters (in centimeters in the User
interface). As shown in the figure, when the
left triangle occurs, it means deviation to
the left side and when the right triangle
occurs, deviation to the right.
13.
Acre counter
To indicate current operation area that has
already been finished in acre. The acre
counter is set in such a way that it starts
counting from the first autopilot operation
ever since the Line AB is set and the area
calculation is not affected by the power-off
or other work during the operation until
another Line AB task is started when the
mu counter will be automatically reset.
Touch button, the acre counter
starts automatically and touch the button
again to pause; touch button, the
acre counter is reset and restarts counting
immediately.
14.
Manual/Auto
switchover
The most important operation button. The
steering wheel icon in the middle of the
button will switch among three colors,
namely white, red and green.
White: It means the vehicle is now in
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manual operation and is allowed to switch
to auto operation;
Red: It means the vehicle is now in manual
operation and is not allowed to switch to
auto operation (in any of the following
cases: no task is established, no Line AB is
set, or the vehicle is too far from the Line
AB (2m), or the vehicle has an oversized
angle with Line AB (30°));
Green: The vehicle is now in auto
operation.
Rules of switching:
When the icon is white, touch the button
and the autopilot takes over the steering
control of the agriculture machine
immediately. Now the driver can release
the steering wheel and the agriculture
machine will run along the specified route
automatically. When the icon is red, it is
ineffective to touch the icon. When the icon
is green, touch the symbol and the autopilot
gives up the steering control of the
agriculture machine and the vehicle now is
in manual operation.
15.
Shortcut
operation
area
Establish a shortcut
task
Touch the icon and the system will
automatically establish a new task, which is
named after current Beijing time
automatically by the system. The user can
find the task in “Operation” screen in the
main menu zone later and load the task to
continue the work. For example,
“20161023153207” means a task
established at Beijing time 15:32’07” p.m.
dated October 23th, 2016.
16.
Set Line AB
Touch this icon to establish a Line AB. The
icon is effective only when a task is
established or loaded, that is, there is an
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existing current task.
17.
Line AB drift
Touch this icon to shift current Line AB for
specified distance to the left or right. Note:
When the Line AB is shifted, it will be
saved in the database of the system and any
Line AB task later will be planned based on
the shifted AB. Touch the icon to show
three options: shift to left, shift to right,
shift to current position. The user can make
choice as desired.
18.
Implement width
Touch the icon to quickly set the operation
width of the farm tool.
19.
Implement offset
Touch the icon to quickly set the shift of
the farm tool. The purpose of farm tool
shift is to adjust the border row.
20.
Channel number
Touch the icon to quickly switch current
channel number of the radio.
In case of stationary reference station,
when the agriculture machine moves from
near one reference station to near another
reference station during the operation, it
can switch the channel to the nearest
reference station so as to achieve better
quality of reference station signals.
In case of portable reference station, when
the quality of received signals decreases
due to interference, the channels of
reference station and autopilot can be
switched simultaneously so as to improve
the signal quality.
21.
Display
adjustment
Day/night
Touch the icon to switch between display
modes of day or night. In day mode, the
screen uses a white background to display
clearly in the sunlight; in night mode, the
screen uses a black background to prevent
the light from the screen affecting the view
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of the driver.
22.
Grid display
Touch the icon to show or hide the grid on
the screen background.
23.
Operation
highlighting
Touch the icon to show or hide the
operation highlighting information on the
screen. When the operation highlighting
function is ON, the operated area will be in
green color, while that not operated will be
in the background color. For tasks where it
is difficult to discern operated or
unoperated area, such as insecticide
spraying, fertilizing etc., this function can
provide instruction and thus is greatly
helpful.
24.
Zoom
Touch icon to zoom in the display
element in the middle of the screen; touch
icon to zoom out the display
element in the middle of the screen.
25.
Operation
area
Agriculture
machine
This abstract icon is to indicate current
position and direction of agriculture
machine.
26.
Task name
To indicate the name of current task.
27.
Current time
To indicate current Beijing time.
If fault occurs during the power-on process of the equipment, eliminate the fault by
the following means.
During power-on, the LED lights of gourd-shaped switch and Autopilot
(Controller) and screen of panel computer are all OFF
Check if the battery terminals of drive harness are correctly connected to the
“+”, “-“ terminals of battery, and if they are inversely connected
Check if the battery terminals of drive harness is securely connected to the
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battery
Check if the battery still has voltage (≥12V)
Replace the drive harness
Contact the distributor or FAE department of manufacturer.
During power-on, the LED light of gourd-shaped switch is ON while the LED
light of Autopilot (Controller) and the screen of panel computer both are OFF
Check if the battery still has voltage (≥12V)
Check if the drive harness (black end harness) and data harness (white end
harness) are inversely connected
Disconnect and reconnect the connection between the drive harness and the
Autopilot (Controller)
Replace drive harness
Replace Autopilot (Controller)
Contact the distributor or FAE department of manufacturer.
During power-on, both the LED light of gourd-shaped switch and the LED light
of Autopilot (Controller) are ON, while the screen of panel computer is OFF
Press the gourd-shaped switch to power on the equipment again
Disconnect and reconnect the connection between the data harness and the
Autopilot (Controller)
Disconnect and reconnect the connection between the data harness and the
panel computer
Replace data harness
Replace the panel computer
Replace Autopilot (Controller)
Contact the distributor or FAE department of manufacturer.
5.2 Check Program Version
Enter the main interface, first touch the topmost icon “Manufacturer information”
in the menu zone at the left side and a block pops out from the left upper corner
of the screen, as shown in the figure below.
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Figure 117 Check the firmware version number at “About us”
In this screen above, the user may view the program version of AG960.
5.3 View Self-test Information
Touch “Self-test” icon in the main interface to view the self-test information
of the equipment.
Figure 118 View self-test information of equipment
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The self-test information shows the status of main components and assemblies of the
autopilot. Green icon at the right side means the component or assembly is normal
and the self-test is acceptable. Red icon means abnormal status and troubleshooting is
required.
If all icons shown in the self-test information are green, it means the self-test is
acceptable. If there is any red icon, please see to indication below.
Red self-test icon for data transfer radio
It means the data transfer radio cannot receive signals from the reference station.
Eliminate the fault according to the following procedures.
Make sure the vehicle is in an open area outdoor, and there is no obvious
obstacle around or above the agriculture machine
Check if a reference station is established near the location of vehicle
Check if the reference station works normally and the signals are available
Check if the vehicle is too far away from the reference station (stationary
station: ≤20km, portable station: ≤3km)
Check if the radio of the autopilot is correctly set (see section 4.4.1)
Check if the radio receiving antenna is correctly installed to the driving cab
top
Check if the RF connector of radio receiving antenna hanging from the
driving cab top is correctly connected to the “radio antenna” socket on the
front panel of the Autopilot (Controller)
Check if the RF connector is securely connected
Replace the radio receiving antenna
Replace the Autopilot (Controller)
Contact the distributor or FAE department of manufacturer.
Red self-test icon for GNSS receiver (direction-finding)
It means the GNSS receiver does not accomplish the function of direction finding.
Eliminate the fault according to the following procedures
Make sure the vehicle is in an open area outdoor, and there is no obvious
obstacle around or above the agriculture machine
Check if the receiver of the autopilot is correctly set
Check if both satellite navigation antennas are correctly installed to the
driving cab top
Check if the RF connection of both satellite navigation antennas are secure;
Check if the RF cable connectors of both satellite navigation antennas
hanging from the driving cab top are correctly connected to “GNSS primary
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antenna” and “GNSS secondary antenna” sockets on the front panel of the
Autopilot (Controller)
Check if the RF connectors are securely connected
Replace both satellite navigation antennas and corresponding RF cables
Replace the Autopilot (Controller)
Contact the distributor or FAE department of manufacturer
Red self-test icon for GNSS receiver (RTK)
It means the autopilot cannot achieve the centimeter-level high precision
positioning against the reference station. Eliminate the fault according to the
following procedures
Make sure data transfer radio icon is green
Make sure GNSS receiver (direction finding) icon is green
If both 1) and 2) are green, and GNSS (RTK) is still red after waiting for
5min, power off and restart the autopilot and wait another 5min
Replace the Autopilot (Controller)
Contact the distributor or FAE department of manufacturer
Red self-test icon for inertial navigation unit
Power off and restart the autopilot and wait another 5min
Replace the Autopilot (Controller)
Contact the distributor or FAE department of manufacturer.
Red self-test icon for steering actuator
Check if the hydraulic valve drive terminal of drive harness is correctly
connected to the hydraulic valve
Check if the hydraulic valve drive terminal of drive harness is securely
connected to the hydraulic valve
Check if the pressure sensor terminal of drive harness is securely connected
to the hydraulic valve
Replace the hydraulic valve
Replace the Autopilot (Controller)
Replace the drive harness
Contact the distributor or FAE department of manufacturer
Red self-test icon for steering measuring mechanism
Check if the steering measuring mechanism terminal of drive harness is
correctly and securely connected to the steering measuring mechanism
Replace the steering sensor
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Replace the drive harness
Replace the Autopilot (Controller)
Contact the distributor or FAE department of manufacturer.
5.4 Set up the Equipment
AG960 is set up by 5 steps as following.
System setting. To set the model of main components and assemblies of the
autopilot
Host setting. To set the installation position and orientation of the Autopilot
(Controller) on the agriculture machine
Antenna setting. To set the installation position and orientation of the satellite
navigation antenna
Vehicle setting. To set the dimensional parameters of the vehicle
Implement setting. To set the dimensional parameters, connecting positions,
operation width parameters of implements.
In addition, the autopilot program needs to be updated in some special cases; details
of program updating process will also be given in this section.
5.4.1 System Setting
Touch “Setting” iconin the main menu zone at the left side of the screen to
enter the setting screen, as shown in the figure below. The setting screen further has 6
sub-screen from left to right, namely “System setting” (Default sub-screen after
entering the setting screen), “Host setting”, “Antenna setting”, “Vehicle setting”, “Implement setting” and “Program updating”. Touch corresponding icon at the top
of the screen to enter each sub-screen. There is a “Back” button at the left upper
corner of the screen. Touch this icon to exit from the setting screen and enter the main
interface of the panel computer.
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Figure 119 Setting screen
The sub-screen “System” shows the unique ID number of the AG960 and the name of
every main components and assemblies, followed by corresponding pull-down menu
for model selection. With modular design, AG960 can easily select GNSS high
precision board card, data transfer radio module, inertial sensor, steering actuator and
steering measuring mechanism etc. from different manufacturers so as to provide
personalized and customized products for the distributors and users.
Each autopilot is provided with a unique ID number when delivered and neither the
technical support nor the user has authorization to reset the ID number.
Except in some special cases, each autopilot has completed the setting of models of
components and assemblies when delivered. Neither the technical support nor the user
needs to reset models except for “RTK data source”.
The setting of RTK data source is used to select the source of differential reference
information required for centimeter-level high precision positioning of autopilot and
the options available are internal radio, external radio and CORS network.
5.4.1.1 RTK Data Source
If internal radio of Autopilot (Controller) is used (as in most applications), select
“433MHz radio (internal)” as “RTK data source” and now the lower part of the
sub-screen “System” will display setting options of internal radio. Set “Channel” at
the pull-down menu to current transmitting channel number used by the reference
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station currently available. For example, when the transmitting channel of reference
station is “Channel 2”, set “Channel” of such internal radio to “Channel 2”.
Figure 120 System setting screen to select “433MHz radio (internal)” as “RTK data source”
Figure 121 Select channel number of internal radio
5.4.1.2 External Radio
If external radio is used, select “433MHz radio (external)” as “RTK data source”, and
now there is no radio setting options available at the lower part of the sub-screen
“System”.
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Figure 122 System screen to select “433MHz radio (external)” as “RTK data source”
5.4.1.3 CORS Network
If CORS network is used, select “CORS network” as “RTK data source” and now the
lower part of the sub-screen “System” will provide setting options of CORS network,
such as account, password, server ID, port number etc. The user can perform the
setting via the purchased account and password of local CORS network.
Figure 123 Screen to select “CORS network” as “RTK data source”
It must be noted that because the autopilot in “CORS network” mode should have
access to the Internet, 3G SIM card should be purchased from a local mobile
communication operators. Insert the card into the SIM card slot of the panel computer
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and pay the traffic cost on time. In this way can the “CORS network” be used.
When the setting of RTK data source is completed, touch “Back” button to exit from
the setting screen. Observe three icons at the left-most position in the instrument panel
zone at the lower part of the main interface, and the followings can be found.
“Satellite number” icon.For example,, which means
now the autopilot receives signals from 26 navigation satellites
“Radio status”icon. If the red light turns green, for example,
, it means the autopilot receives signals from GNSS reference
station
“Differential state” icon.When the red light turns green, for
example,, it means the autopilot has achieved centimeter level high
precision positioning
If CORS network is used as RTK data source, the user can also observe that the icon
is followed by “CORS”.
When the RTK data source is correctly set, if “Radio status” iconand
“Differential status” iconare still red, it means the equipment has fault.
5.4.2 Host Setting - Autopilot (Controller)
When the “System setting” is completed, touch “Host setting” buttonat the
upper part of the setting screen to enter the sub-screen “Host setting” as shown in the
figure below.
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Figure 124 Sub-screen of “Hostsetting”
The “Host” in the screen is indicating as “Autopilot (Controller)”.
The sub-screen “Host setting” is used to set the installation position and orientation of
the Autopilot (Controller) on the tractor.
To install the Autopilot (Controller) on the tractor, it is required three sides
perpendicular to each other starting from the same angle of the Autopilot (Controller)
should be parallel with the coordinate system of the tractor (With rear axle center of
vehicle as the origin, vehicle rear axle as X axis, vehicle longitudinal axle as Y axis
and the half-line starting from vehicle rear axle center pointing to sky as Z axis).
5.4.2.1 Set Installation Orientation of Autopilot (Controller)
Select the installation orientation of main machine based on the actual orientation of
the Autopilot (Controller). Touch the pull-down menu of installation orientation of
main machine and make the choice as per the actual conditions. The pull-down menu
provides 8 options for the installation orientation as below.
Main machine line outlet forward, LED light face upward
Main machine line outlet forward, LED light face downward
Main machine line outlet forward, LED light face left
Main machine line outlet forward, LED light face right
Main machine line outlet upward, LED light face forward
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Main machine line outlet upward, LED light face backward
Main machine line outlet upward, LED light face left
Main machine line outlet upward, LED light face right.
Where, the six directions, namely upward, downward, forward, backward, left and
right are determined as the driver views from the seat in the driving cab.
Figure 125 Main machine line outlet forward, LED light face upward (left); main machine line
outlet forward, LED light face right (right)
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Reference point on
Figure 126 Main machine line outlet upward, LED light face forward (left); main machine line
outlet upward, LED light face right (right)
Figure 127 Open the pull-down menu for installation orientation of main machine for selection
5.4.2.2 Set the Installation Position of Autopilot (Controller)
Place the vehicle on a level plane. Measure the coordinate of the reference point on
the Autopilot (Controller) in the coordinate system of the tractor with spirit level,
plumb line and measuring reel, that is, measure the distances between the reference
point of Autopilot (Controller) to the projection point of vehicle rear axle center on
the ground in lateral, longitudinal and height directions. Enter three distances into
corresponding number boxes according to the instruction on the sub-screen “Main machine setting”. Touch “Save” button to save the installation parameters of the main
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navigation driving box
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machine.
Figure 128 Reference point on Autopilot (Controller)
5.4.3 Antenna Setting
When the “Host setting” is completed, touch the “Antenna setting” button
at the upper part of the setting screen to enter the sub-screen “Antenna
setting” as shown in the figure below.
Figure 129 Sub-screen “Antenna setting”
The sub-screen “Antenna setting” is used to set the installation position and
orientation of satellite navigation antenna on the tractor.
5.4.3.1 Set Installation Orientation of Antenna
Select the installation orientation of antenna based on the actual orientation of two
satellite navigation antennas. Touch the pull-down menu “Antenna installation
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method” to make the choice according to the actual conditions. The pull-down menu
provides 2 options for the installation orientation as below.
Lateral. Primary antenna at right and secondary antenna at left
Longitudinal. Primary antenna in the back and secondary antenna in the front.
Figure 130 Example of lateral installation of antenna on the agriculture machine
5.4.3.2 Set Installation Position of Antenna
Select the installation orientation of antenna based on the actual orientation of two
satellite navigation antennas. Touch the pull-down menu “Antenna installation method” to make the choice according to the actual conditions. The pull-down menu
provides 2 options for the installation orientation as below.
Place the tractor on a level plane. Measure the coordinate of the geometrical center of
the mushroom head of primary antenna in the coordinate system of the tractor with
spirit level, plumb line and measuring reel, that is, measure the distances between the
geometrical center of the mushroom head of primary antenna to the projection point
of tractor rear axle center on the ground in lateral, longitudinal and height directions.
Enter three distances into corresponding number boxes according to the instruction on
the sub-screen “Antenna setting”. Touch “Save” button to save the installation
parameters of the antenna.
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Reference point of satellite
navigation antenna (top center of
the mushroom head)
Figure 131 Reference point for measuring position of satellite navigation antenna
5.4.4 Vehicle Setting
Figure 132 Sub-screen “Vehicle setting”, front wheels
The sub-screen “Vehicle setting” is used to set the geometrical parameters of the
machine, including the following 5 parameters.
Wheel base: the horizontal distance from the front axle to the rear axle of vehicle
Front wheel diameters: the diameter of vehicle front wheels
Rear wheel diameters: the diameter of vehicle rear wheels
Front wheel spread: the horizontal distance between left and right knuckles of the
front wheels
Rear wheel spread: the horizontal distance between the centers of left and right
tyres of the rear wheels.
Place the tractor on a level plane and measure the above-mentioned 5 parameters with
a measuring reel. Create an vehicle model and fill the data into corresponding number
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boxes. Touch the button “Save” to finish the setting of machine. Meanwhile the
license plate number can be entered to facilitate the management. In addition, if the
machine installed can be found in the pull-down menu of “Vehicle models”, it is
unnecessary to measure the parameters. In such cases, the machine setting can be
completed by directly selecting the specific model of the machine.
5.4.5 Implement Setting
When the “Vehicle setting” is completed, touch the button “Implement setting”
at the upper part of the Setting screen to enter the sub-screen “Implement
setting” as shown in the figure below.
Figure 133 Sub-screen “Implementsetting”
In the sub-screen “Implement setting”, fill each measured parameter of the farm tool
in the number box to finish the implement setting as below.
The longitudinal distance from the implement to the hanging point
The lateral shift of implement
The operation width of implement
The operation width overlap of implement
The number filled into every number box is in meters. When all numbers are entered,
touch “Save” button to save the implement parameters.
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5.4.6 Program Update
For commissioning of the system in normal conditions, it is usually unnecessary to
update the system by entering the sub-screen “Program update”. Under some special
conditions, if program update is required, enter the sub-screen “Program update” of
setting screen.
Figure 134 Sub-screen “Program update”
To update the program of AG960, insert the special updating flash disk into the USB
port of the panel computer, which can be obtained from the distributor or the
manufacturer. If SIM card is inserted into the panel computer, the program can also be
updated through the Internet.
When the special updating flash disk is inserted to the USB port of the panel computer,
touch buttons “Navigation update”, “Drive update”, “APK update” successively in the
sub-screen “Program update” to update the system.
5.5 Calibration of the Equipment
When the setting of equipment is completed, calibration of the equipment is required
before delivery to the user. During the calibration process, all the self-checking
information of equipment must be normal. The calibration activity requires a flat road
or farmland without inclination being at least 5m wide and 100m long.
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