DJI Phantom 4RTK User Manual

RTK
User Manual
2020.03
v2.2
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Information

There are two kinds of altitudes displayed in the DJI GS RTK app, absolute altitude and relative altitude.
Absolute altitude: The geographical attribute, in relation to longitude and latitude.
Relative altitude: The altitude data of the operation tasks relative to the Home Point. In the same operation, the absolute altitude for the same point during the operation will vary when taking o from locations with dif­ferent elevations.

Using this manual

Legends

Warning Important Hints and Tips Reference

Read Before the First Flight

Read the following documents before using the PHANTOMTM 4 RTK:
1. In the Box
2. User Manual
3. Quick Start Guide
4. Disclaimer and Safety Guidelines
5. Intelligent Flight Battery Safety Guidelines
We recommend that you watch all tutorial videos on the ocial DJITM website and read the Disclaimer and Safety Guidelines before you y. Prepare for your rst ight by reviewing the Quick Start Guide and refer to
the User Manual for more details.

Watch the Tutorial Videos

Please watch the tutorial videos at the link below, which demonstrates how to use the Phantom 4 RTK safely: http://www.dji.com/product/phantom-4-rtk/info#video

Download the DJI Assistant 2 for Phantom

Download DJI ASSISTANTTM 2 for Phantom from: http://www.dji.com/phantom-4-rtk/info#downloads
The operating temperature of this product is 0° to 40° C. It does not meet the standard operating temperature for military grade application (-55° to 125° C), which is required to endure greater environmental variability. Operate the product appropriately and only for applications that it meets the operating temperature range requirements of that grade.
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Contents
Information
Using this manual
Legends
Read Before the First Flight
Watch the Tutorial Videos
Download the DJI Assistant 2 for Phantom
Product Prole
Introduction
Features Highlights
Installation
Aircraft Overview
Remote Controller Overview
Aircraft
Prole
Flight Modes
Aircraft Status Indicators
Return to Home (RTH)
Industrial Applications
Vision System and Infrared Sensing System
RTK Functions
Flight Recorder
Attaching and Detaching the Propellers
DJI Intelligent Flight Battery
Remote Controller
Prole
Using the Remote Controller
Remote Controller Status LED
Linking the Remote Controlle
Multi-Aircraft Control Function
Gimbal and Camera
Camera
Gimbal
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DJI GS RTK App
Main Screen
Planning View
Camera View
Cloud PPK Service
Flight
Flight Environment Requirements
GEO (Geospatial Environment Online) System
Flight Restrictions
GEO Unlocking
Calibrating the Compass
PreightChecklist
Starting/Stopping the Motors
StoppingMotorsMid-ight
Flight Test
DJI Assistant 2 for Phantom
Installation and Launching
Using DJI Assistant 2 for Phantom
Appendix
Specications
Updating the Firmware 73
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Product Prole
This section introduces the Phantom 4 RTK and lists the components of the aircraft and remote controller.
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Product Prole

Introduction

The Phantom 4 RTK is a smart mapping and imaging drone capable of highly accurate mapping functions. The aircraft has a built-in DJI Onboard D-RTKTM, which provides precision data for centimeter-level positioning accuracy*. Multi-directional obstacle sensing achieved through vision and infrared sensors enables intelligent obstacle avoidance during flight and indoor hovering and flight. The Phantom 4 RTK records videos at 4K and captures 20 megapixel photos. The OCUSYNCTM HD video downlink built into both the aircraft and remote controller ensures a reliable and stable transmission.

Features Highlights

The Phantom 4 RTK aircraft has a built-in DJI Onboard D-RTK, providing high-precision data for centimeter­level positioning when used with Network RTK service or a DJI D-RTK 2. Raw satellite observations and
exposure event records can be used for post-processed kinematic (PPK) dierential corrections.
The Phantom 4 RTK can hover and y in extremely low altitude and indoor environments, and provides
multi-directional obstacle sensing and vision positioning functions. Obstacles detection and avoidance in
large range and landing protection enhance ight safety.
The Phantom 4 RTK is equipped with a 24 mm (35 mm format equivalent) wide angle camera, high-
precision and anti-shake gimbal, 1-inch CMOS sensor, mechanical shutter to oer the best in aerial photo
analysis.
Built into the remote controller is the latest DJI OcuSync technology with enhanced anti-interference capability to deliver a more stable and smoother video downlink. When combined with the receiver in the aircraft, the remote controller has a transmission range up to 4.3 mi / 7 km (FCC-compliant version). The remote controller is equipped with a 5.5-inch high luminance monitor, and an integrated DJI GS RTK App
for real-time HD display. Users can plan ight paths and perform ight operations in the app for operation
types of Photogrammetry, Waypoint Flight, Linear Flight, Terrain Awareness Mode, and Block Segmentation. For Photogrammetry, Linear Flight, Terrain Awareness Mode, and Block Segmentation operations, simply
tap on the map in the app or import les to set a ight area. For waypoint operations, y the aircraft to set waypoints and congure waypoint actions, then the aircraft will be able to perform automated operations.
The remote controller’s Multi-Aircraft Control mode can be used to coordinate the operation of up to ve aircraft at the same time, enabling pilots to work very eciently. Image data from the Phantom 4 RTK can be used to generate maps for eld planning when operating a DJI
AGRASTM aircraft. Users can also import photos to the DJI PC GS Pro application or third-party mapping
software to composite highly accurate maps for dierent applications.

Installation

Preparing the Aircraft
1. Remove the gimbal clamp from the camera as shown below:
* This should be used with Network RTK service, a DJI D-RTK 2 High-Precision GNSS Mobile Station (purchased
additionally) or post-processed kinematic (PPK) data (recommended when RTK signal is weak during operation).
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Phantom 4 RTK User Manual
2. Attaching the Propellers Mount the propellers with black propeller rings to the motors with black dots. Mount the propellers with sliver propeller rings to the motors without black dots. Press the propeller down onto the mounting plate and rotate in the lock direction until it is secured.
3. Battery Installation Slide battery into the battery compartment according to the arrow’s direction as shown below.
When the upper and lower buckles on the battery are in place, a click sound indicates the battery is
securely installed. Failure to do so may aect the ight safety of your aircraft.
Preparing the Remote Controller
1. Mounting the Remote Controller Battery The remote controller uses an easily removable interchangeable Intelligent Battery for long-term operation.
1
Slide the battery compartment cover lock on the back of the remote
controller down to open the cover.
2
Insert the Intelligent Battery into the compartment and push it to the top.
3
Close the cover.
To remove the Intelligent Battery, open the cover, press and hold the battery release button, then push the battery downward.
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Phantom 4 RTK User Manual
2. Mounting the Dongle and SIM Card
1
Lift the dongle compartment cover at the gap at its lower right corner, then remove it.
2
Insert the dongle into the USB port with the SIM card inserted into the dongle and test. *
3
Re-mount the cover. To secure the cover, open the silicone protectors on it, insert and tighten two
Phillips screws, then close the protectors.
* Test procedure: Press the remote controller power button once, then press again and hold to turn the remote
controller on. In the DJI GS RTK app tap > and select Network Diagnostics. If the statuses of all the devices in the network chain are shown in green the dongle and SIM card are functioning properly.
The Phantom 4 RTK remote controller can access the Internet using a 4G dongle with SIM card or
Wi-Fi signal. For UK, EU, ACUK, or ACEU versions, a Network RTK server can only be accessed using a 4G dongle with SIM card. For NA, AU or AFUS versions, using a 4G dongle with SIM card is
recommended, but a Wi-Fi signal can also be used. To conrm the version of your unit, please view
the version code after the product name on the label on the product packaging. When uploading or downloading system logs or operation data, using a Wi-Fi signal for Internet access is recommend­ed.
Only use a DJI approved dongle.
The dongle supports various network standards. Use a SIM card that is compatible with the chosen
mobile network provider and select a mobile data plan according to the planned level of usage.
The dongle and SIM card are used to enable the remote controller to access to specic networks
and platforms, such as the DJI AG platform. Be sure to mount them correctly, or else network ac­cess will not be available.
3. Unfolding the Remote Controller Tilt the display device on the remote controller to the desired position, then adjust the antennas so they are facing outward.
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Aircraft Overview

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Phantom 4 RTK User Manual
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1. Onboard D-RTK Antenna
2. Propellers
3. Motors
4. Front LEDs
5. Forward Vision System
6. Gimbal and Camera
7. Intelligent Flight Battery
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8. Aircraft Status Indicator
9. Rear Vision System
10. Infrared Sensing System
11. Camera / Linking Status Indicator and Link Button
12. Micro USB Port
13. Camera microSD Card Slot
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14. Downward Vision System
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Phantom 4 RTK User Manual

Remote Controller Overview

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1. Antennas Relays aircraft control signals.
2. Display Device Android-based to run the DJI MG app.
3. Speaker Audio output.
4. Control Sticks Controls aircraft movement. Can be set to Mode 1, Mode 2, or a custom mode.
5. Lanyard Attachment Used to attach the remote controller lanyard.
6. Power Button
Used to turn the remote controller on and o.
7. Status LED Indicates whether the remote controller is linked to the aircraft.
8. USB-C Port Connects to a computer via a USB-C cable
for conguration. Connects to the aircraft via a
USB-C OTG cable and a Micro USB cable for
aircraft rmware update.
9. 3.5 mm Audio Jack Used to connect audio input/output devices.
10. Battery Level LEDs
Displays current battery level.
11. MicroSD Card Slot
Provides display device with up to 128 GB of extra storage.
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12. RTH Status LED Circular LED around the RTH button. Displays RTH status.
13. RTH Button Press and hold this button to initiate Return to Home (RTH).
14. Gimbal Dial Use this dial to control the tilt of the gimbal.
15. Video Recording Button Press to start recording video. Press again to stop recording.
16. Pause Switch During a Photogrammetry or Waypoint operation, toggle to pause the operation. During RTH, toggle to pause RTH.
17. Sleep/Wake Button Press to sleep/wake the screen; press and hold to restart.
18. Shutter Button Press to take a photo.
19. Reserved Button
20. Aircraft Control Switch Dial Turn and press the dial to switch among the aircraft when using Multi-Aircraft Control function.
Phantom 4 RTK User Manual
21. Button C1 Press Button C1 to switch between Map View and Camera View.
22. Button C2 When you are planning a Waypoint Flight
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operation, it adds a waypoint. The button is disabled in any other operations.
23. Battery Compartment Cover
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25
Open the cover to mount or remove the Intelligent Battery from the remote controller.
24. Battery Compartment Cover Lock Slide the lock down to open the cover.
25. Dongle Compartment Cover Open the cover to mount or remove the dongle.
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Aircraft
This section introduces the aircraft components, features and functions.
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Aircraft

Profile

The Phantom 4 RTK aircraft includes a flight controller, a communication system, a positioning system, a propulsion system and an Intelligent Flight Battery. This section describes the functions of these components.

Flight Modes

The Phantom 4 RTK uses a DJI dedicated ight controller, which provides the ight modes below:
P-mode (Positioning): P-mode works best when the GNSS signal is strong. The aircraft utilizes the GNSS / RTK module and Vision System to automatically stabilize itself, navigate between obstacles, and perform a Photogrammetry or Waypoint Flight operation.
When the GNSS signal is strong, the aircraft uses GNSS for positioning. When RTK module is enabled and
the dierential data transmission is good, it provides centimeter-level positioning. When the GNSS signal is weak and the lighting conditions are sucient, the aircraft uses Vision System for positioning.
When the forward obstacle sensing is enabled and lighting conditions are sucient, the maximum ight attitude angle is 25° with a maximum ight speed of 31 mph (50 kph). When forward obstacle sensing is disabled, the maximum ight attitude angle is 35° and the maximum ight speed is 36 mph (58 kph).
A-mode (Attitude): GNSS and Vision System are NOT used for positioning and aircraft can only maintain altitude using the barometer. It enters A-mode only when there is weak GNSS signal or when the compass experiences interference where the Vision System is unavailable.
Attitude Mode Warning
The aircraft will y in P-mode by default. It enters A-mode only when there is weak GNSS signal or when the
compass experiences interference where the Vision System is unavailable.
In A-mode, the Vision System and some advanced features are disabled. Therefore, the aircraft cannot
position or auto-brake in this mode and is easily aected by its surroundings, which may result in horizontal
shifting. Use the remote controller to position the aircraft.
Maneuvering the aircraft in A-mode can be dicult. Avoid ying in areas where GNSS signal is weak, or in conned spaces. The aircraft will otherwise be forced to enter A-mode, leading to potential ight risks,
please land it in a safe place as soon as possible.
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Phantom 4 RTK User Manual

Aircraft Status Indicators

The Phantom 4 RTK has Front LEDs and Aircraft Status Indicators. The positions of these LEDs are shown
in the gure below:
Front LEDs
The Front LEDs show the orientation of the aircraft. The Front LEDs glow solid red when the aircraft is turned on to indicate the front (or nose) of the aircraft. The Aircraft Status Indicators communicate the system sta-
tus of the ight controller. Refer to the table below for more information about the Aircraft Status Indicators.
Aircraft Status Indicators
Aircraft Status Indicator Description
Normal
Alternate red, green and yellow ashing Turning On and Self Diagnostic Testing
Alternate green and yellow ashing Warming Up
Slow green ashing P-mode with GNSS or RTK
×2 Two green ashes P-mode with Vision System
Slow yellow ashing A-mode but No GNSS or Vision System
Fast green ashing Braking
Warning
Fast yellow ashing Remote Controller Signal Lost
Slow red ashing Low Battery Warning
Fast red ashing Critical Battery Warning
Red ashing Uneven Placement or Large Sensors Bias
— Solid red Critical Error
Alternate red and yellow ashing Compass Calibration Required
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Phantom 4 RTK User Manual

Return to Home (RTH)

Return to Home (RTH) function brings the aircraft back to the last recorded Home Point. There are three types of RTH: Smart RTH, Low Battery RTH, and Failsafe RTH. This section describes these three scenarios in detail.
GNSS
If a strong GNSS signal was acquired before takeo, the Home Point is the location
Home Point
The aircraft can sense and avoid obstacles when the Forward Vision System is enabled and lighting conditions are sufficient. The aircraft will automatically climb up to avoid obstacles and descend slowly as it returns to the Home Point. To ensure the aircraft returns home forwards, it cannot rotate
or y left and right during RTH while the Forward Vision System is enabled.
from which the aircraft launched. The GNSS signal strength is indicated by the GNSS icon ( Less than 4 bars is considered a weak GNSS signal). The aircraft status indicators will blink rapidly when the home point is recorded.
Description
Updating the Home Point
You can update the Home Point in the DJI GS RTK app during ight. There are two options for setting the Home
Point:
1. Set the aircraft’s current coordinates as the Home Point.
2. Set the remote controller’s current coordinates as the Home Point.
Ensure the space above the remote controller’s GNSS module (located beneath the DJI logo) is not obstructed and that there are no tall buildings around when updating the Home Point.
Follow the instructions below to update the Home Point:
1. Go to DJI GS RTK > Fly.
2. Tap > , select in Home Point settings to set the aircraft's current coordinates as the Home Point.
3. Tap > , select in Home Point settings to set the remote controller's current coordinates as the Home Point.
4. The Aircraft Status Indicator will blink green to indicate that the new Home Point has successfully been set.
Failsafe RTH
The Forward Vision System allows the aircraft to create a real-time map of its ight route as it ies. If the
Home Point was successfully recorded and the compass is functioning normally, Failsafe RTH will be automatically activated if the remote controller signal is lost for more than three seconds. The aircraft will
plan its return route and retrace its original ight route home. During RTH, if the remote controller signal is
recovered, users can control the aircraft altitude and speed. Press the RTH button once to cancel RTH.
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Phantom 4 RTK User Manual
Failsafe Illustration
1 Record Home Point
Blinking Green
4
Signal Lost Lasts (after 3 sec.)
>3S
× ×
Fast Blinking Yellow
2 Conrming Home Point
Blinking Green
5
RTH (adjustable altitude)
Height over HP>Failsafe Altitude
Elevate to Failsafe Altitude
Failsafe Altitude
Fast Blinking Yellow
Height over HP<=Failsafe Altitude
3 Remote Controller Signal Lost
×
Fast Blinking Yellow
6 Landing (after ho vering for 5 secs)
×
Fast Blinking Yellow
Smart RTH
Use the RTH button on the remote controller when GNSS is available to initiate Smart RTH. The aircraft will then automatically return to the last recorded Home Point. Use the remote controller to control the aircraft’s speed or altitude to avoid a collision during the Smart RTH process. As the aircraft returns, it will use the primary camera to identify obstacles as far as 300m in front, allowing it to plan a safe route home. Press and hold the Smart RTH button once to start the process, and press the Smart RTH button again to terminate the procedure and regain full control of the aircraft.
Low Battery RTH
The low battery level failsafe is triggered when the DJI Intelligent Flight Battery is depleted to a point that
may aect the safe return of the aircraft. The user can cancel the RTH procedure by pressing the RTH
button on the remote controller. The thresholds for these warnings are automatically determined based on the aircraft’s current altitude and distance from the Home Point. The Low Battery RTH will only be triggered
once during the same ight.
The aircraft will land automatically if the current battery level can only support the aircraft long enough to descend from its current altitude. The user cannot cancel the auto landing but can use the remote controller to alter the aircraft’s orientation during the landing process.
The Battery Level Indicator is displayed in the DJI GS RTK app, and is described below:
Critical Low battery level warning
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(Red)
Low battery level warning (Yellow)
Power requires to return home
Sucient battery
level (Green)
Remaining ight time
12:29
Battery level Indicator
Phantom 4 RTK User Manual
Battery Level
Warning
Low battery level warning
Critical Low battery level warning
Estimated
remaining ight
time
Remark
Battery power is low. Fly the aircraft back.
The aircraft must land immediately.
Estimated remaining
ight based on
current battery level.
Aircraft Status
Indicator
Aircraft status indicator blinks RED slowly.
Aircraft status indicator blinks RED quickly.
N/A N/A N/A
DJI GS RTK
App
N/A
The DJI GS RTK app display will
ash red and
the aircraft will start to descend. The remote controller will sound an alarm.
The aircraft will return to the Home Point automatically and hover at 2 meters above the Home Point. Users can also cancel the RTH process and land manually. Note: The Low Battery Level Warning will not prompt after users cancel RTH and regain control.
Allow the aircraft to descend and land automatically.
Flight Instructions
When the Critical low battery level warning is triggered and the aircraft begins to land automatically,
push the left stick upward to make the aircraft hover at its current altitude, giving you an opportunity to navigate to a more appropriate landing location.
The colored zones and markers on the battery level indicator bar reect the estimated remaining
ight time. They are automatically adjusted according to the aircraft’s current location and status.
The Low Battery Warning threshold set in the Aircraft Battery settings page in the app is only for an
alert and will not trigger RTH.
Precision Landing
The aircraft automatically scans and attempts to match the terrain features underneath during Return to Home. When current terrain matches home point terrain, the aircraft will start landing immediately to achieve precision landing.
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Phantom 4 RTK User Manual
5m
H
Landing Protection is active during precision landing. Precision Landing performance is subject to the following conditions:
a) Home point is recorded upon take o, and cannot not be refreshed during ight. b) Aircraft must take o vertically. Take o altitude must be greater than 7 meters. c) Home point terrain features remain largely unchanged. d) Home point terrain with no distinctive features will aect the performance. e) Lighting conditions cannot be too light nor too dark.
The following actions are available during landing:
a) Pull throttle down to accelerate landing. b) Moving the control sticks in any other direction will stop Precision Landing. The aircraft will descend
vertically and Landing Protection will remain active.
RTH Safety Notices
The aircraft cannot avoid obstruction during RTH when the Forward Vision System is disabled. Users can use the remote controller to control aircraft altitude and speed. It is important to set a suitable Failsafe altitude before
20m
each flight. Launch the DJI GS RTK app, tap Failsafe Altitude.
If the aircraft is ying under 65 feet (20 meters) and RTH (including Smart RTH, Low Battery RTH and Failsafe RTH) is triggered, the aircraft will rst
automatically ascend to 65 feet (20 meters) from the current altitude. You can only cancel the ascending by exiting the RTH.
and tap to set the
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5m
H
The aircraft will automatically descend and land if RTH is triggered when the
aircraft ies within a 16-feet (5 meters) radius of the Home Point and when
the aircraft altitude is under 98 feet (30 meters), or if the obstacle sensing function is disabled. The aircraft will not ascend, and will land immediately at the current location.
Aircraft cannot return to the Home Point when GNSS signal is weak
( [ ] displays grey) or the module is unavailable.
If you move the throttle stick after the aircraft rises above 65 feet (20 meters) but below the pre-set Failsafe RTH altitude, the aircraft will stop ascending and immediately return to the Home Point.
Phantom 4 RTK User Manual
Obstacle Avoidance During RTH
Aircraft can now sense and actively attempt to avoid obstacles during RTH, provided that the lighting conditions are adequate for the Forward Vision System. Upon detecting an obstacle, the aircraft will act as follows:
1. The aircraft will use the primary camera to identify obstacles as far as 984 feet (300 meters) in front, allowing it to plan a safe route home.
2. The aircraft decelerates when an obstacle is sensed at 49 feet (15 meters) ahead.
3. The aircraft stops and hovers then starts ascending vertically to avoid the obstacle. Eventually, the aircraft will stop climbing when it is at least 16 feet (5 meters) above the detected obstacle.
4. Failsafe RTH procedure resumes, the aircraft will continue ying to the Home Point at the current altitude.
5 meters
300 meters
15 meters
The Obstacle Sensing function is disabled during RTH descent. Operate with care.
To ensure the aircraft returns home forwards, it cannot rotate during RTH while the Forward Vision
System is enabled.
The aircraft cannot avoid obstacles above, beside, or behind the aircraft.
Landing Protection Function
Landing Protection will activate during auto landing.
1. Landing Protection determines whether the ground is suitable for landing. If so, the aircraft will land
gently.
2. If Landing Protection determines that the ground is not suitable for landing, the aircraft will hover and
wait for pilot conrmation. The aircraft will hover if it detects the ground is not appropriate for landing
even with a critically low battery warning. Only when the battery level decreases to 0% will the aircraft
land. Users retain control of aircraft ight orientation.
3. If Landing Protection is inactive, the DJI GS RTK app will display a landing prompt when the aircraft
descends below 0.3 meters. Tap to conrm or pull down the control stick for 2 seconds to land when
the environment is appropriate for landing.
Landing Protection will not be active in the following circumstances:
a) When the user is controlling the pitch/roll/throttle sticks (Landing ground detection will re-activate
when control sticks are not in use) b) When the positioning system is not fully functional (e.g. drift position error) c) When the Downward Vision System needs re-calibration d) When light conditions are not sucient for the Downward Vision System
• If an obstacle is within 1-meter of the aircraft, the aircraft will descend to 0.3m above the ground
and hover. The aircraft will land upon with user conrmation.
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Phantom 4 RTK User Manual

Industrial Applications

The Phantom 4 RTK can be used for industrial applications including but not limited to, photogrammetry and power line inspections. Select Photogrammetry, Waypoint Flight, Linear Flight, Terrain Awareness, or Block
Segmentation, plan ight paths, set parameters, and then the aircraft will perform automated operations.
Operation resumption and obstacle avoidance are available. Users can import images to the DJI PC GS Pro
application or a third-party mapping software to composite highly accurate maps for dierent applications. KML/KMZ les can be imported into the DJI GS RTK app to help plan operations.
KML/KMZ File Import
To plan operations, insert the microSD card with the KML/KMZ les into the microSD card slot on the remote controller to import the les into DJI GS RTK. For les including polygons, users can view the data on the map and use it to plan ight areas. For les including line strings, users can only view the data on the map,
but cannot use it for planning.
Preparing Files
1. Create a folder named “DJI” in the root directory of the microSD card. Then create a folder named “KML” under this folder. (The letters are not case sensitive.)
2. Store the KML/KMZ les into the “KML” folder created above.
Importing Files
1. Insert the microSD card into the microSD card slot on the remote controller. There will be a pop-up window on the main screen in the DJI GS RTK app then. If not, tap , then tap .
2. Tap the le in the window to select it. To delete the le, swipe to the left and tap . Select les and then tap to import the les. Wait until the app indicates successful import.
Viewing Files
1. Go DJI GS RTK main screen > > , select KML Files in the drop-down menu on the top to view the
les. They are sort by time. KML le names displayed in the app are the original names of the les. KMZ les will be named in sequence: doc, doc(1), doc(2), etc.
2. Tap the icon on the right of each le to enter Map View and view the data on the map.
Users can also tap on the left in Camera View or Map View, and then select KML File in the
drop-down menu to enter the le list page.
3. Tap Edit to edit the waypoints for photogrammetry operation planning if the waypoint number is fewer than 125. Refer to the Photogrammetry section below for details on operation planning. If the waypoint
number is more than 125, users have to reimport KML/KMZ les that meet the requirements.
Photogrammetry
After the operation area has been set, and settings have been congured, the DJI GS RTK app produces
a flight route based on the user’s input. After planning, the aircraft can carry out automated operations
following the ight route. There are three types of Photogrammetry operations: 2D, 3D (Double Grid) and 3D (Multi-oriented). The 2D ight route is s-shaped and can be used for digital orthophoto map (DOM). The 3D (Double Grid) ight route consists of s-shaped routes that are crisscrossed to create 3D models. The default values of the gimbal pitch angle for the two types are dierent. The 3D (Multi-oriented) ight routes consist of
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Phantom 4 RTK User Manual
a single nadir view ight path and four oblique ight paths to create more accurate 3D models.
Planning a Flight Route
1. Add edge points of the operation area through the two methods below:
View the imported KML/KMZ file, and then tap Edit. The vertices of the polygon in the file will be
converted to the edge points of the operation area.
Go to the main screen in the DJI GS RTK app, tap Plan, and select Photogrammetry to enter Planning
View. Then tap on the map to add edge points.
2. Edit edge points
Move: Drag the point to move. Fine Tuning: Tap the point to show Fine Tuning buttons. Tap to adjust. Delete: Tap twice to delete a point.
3. Settings: After points are added, there will be a settings list on the right screen. Congure the settings and the app will produce a corresponding ight route.
4. Adjust the route direction: Tap and drag the icon near the route to adjust the ight direction of the produced route.
5. Tap Save, name the operation, and then tap OK.
Waypoint Flight
Fly the aircraft to desired positions, add waypoints and congure settings and actions for each waypoint.
The waypoints will produce a flight route in sequence. After the operation is started, the aircraft will fly alongside the route and perform pre-set actions at each waypoint.
Planning Route
1. Go to the main screen in the DJI GS RTK app, tap Plan, and select Waypoint Flight to enter Planning View.
2. Fly the aircraft to the desired position, and short press the C2 Button on the remote controller once to add a waypoint.
The position of the added waypoints cannot be adjusted. Users can edit the waypoint for other
congurations. See details below.
3. Edit waypoints
Tap the added waypoint on the map and there will be a settings list on the screen. Tap < / > to switch
among the waypoints to edit each waypoint.
Altitude: The relative altitude between the aircraft and the Home Point at the selected waypoint. The
aircraft will ascend or descend gradually to the altitude pre-set at the next waypoint if the values at the
two consecutive waypoints are dierent. Tap the button, and then slide up or down anywhere on the
screen to adjust the value.
Heading: The aircraft heading at the selected waypoint. North is 0°, with a positive value indicating
clockwise and a negative value indicating counter clockwise. The aircraft will rotate gradually to the
heading pre-set at the next waypoint if the values at the two consecutive waypoints are dierent. Tap the
button, and then slide up or down anywhere on the screen to adjust the value.
Pitch: The gimbal pitch angle at the selected waypoint. Pitch angle can range from -90° to 0°, with
downward represented by -90° and forward represented by 0°. The gimbal will tilt to the angle pre-set
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Phantom 4 RTK User Manual
after reaching the selected waypoint. Tap the button, and then slide up or down anywhere on the screen to adjust the value.
Action: Waypoint actions include: single shot, 3 continuous shots and none.
: Tap to delete the selected waypoint.
Users cannot add waypoints during Edit Mode. Waypoints can be added after tapping Save or Cancel in the settings list.
4. Route settings: After waypoints are added, tap the route settings button on the lower right corner to set an ending action for a task, action for when RC signal is lost, aircraft heading, cruising speed, and route recording. (Note that if route recording is enabled, shooting actions set for all the waypoints will be
disabled, and the raw satellite observations will not be recorded.) Close the menu after conguration.
5. Tap Save, name the operation, and then tap OK.
Linear Flight Mission
The DJI GS RTK app automatically generates linear ight area and several independent ight paths after the user has set the linear ight points, expansion distance, and linear ight cutting distance. Users perform the operation, and the aircraft will automatically y alongside the selected ight paths in the linear ight area.
Planning a Flight Route
1. Add linear ight points by:
Viewing the imported KML/KMZ le, and then tapping Edit to convert points in the le to points in a linear ight mission.
Going to the main screen in the DJI GS RTK app, tapping Plan, and selecting Linear Flight to enter
Planning View. Then tap on the map to add linear ight points.
2. Edit linear ight points
Move: Drag the point to move. Delete: Tap twice to delete a point.
3. After points are added, there will be a settings list on the right side of the screen. Congure the settings
accordingly.
Expansion Distance to Left or Right: Adjusts the expansion distance to the left or right of the linear ight
area, where the front is dened by the line that any point on the linear ight path makes with the previous
point.
Linear Flight Cutting Distance: Divides linear ight areas with a long center line into multiple segments
according to this setting.
4. Tap Generate Flight Route. The app will generate the corresponding ight route. Each segment will have a sub-mission with an independent ight route if the linear ight area is divided. Users can select the desired ight route before performing the operation. Tap Back to edit the linear ight points and settings
mentioned above if needed.
5. After the ight route is generated, there will be a settings list on the right side of the screen. Congure the
settings accordingly. If sub-missions are created, the settings will apply to all of them.
Height: The altitude of the aircraft during the operation.
Speed: The ight speed during the operation. Working Mode: The area where images are collected and the ight route generated will vary in dierent
working modes. If Full Coverage is selected, the ight route will include an extra path on both sides of the linear ight area. If Eciency is selected, the ight route will just cover the linear ight area.
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