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Xiamen Caimore BD/GPS Terminal
User Manual
Xiamen Caimore Communication Technology Co., Ltd
2 F, 37#, Wanghai Road, Xiamen Software Park 2, Xiamen, China
Telephone: 0592-5902655 Fax: 0592-5975885 Zip Code: 361009
Xiamen Caimore Communication Technology Co.,Ltd
2 F, 37#, Wanghai Road, Software Park 2, Xiamen,China (361009)
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Website
：
www.caimore.com www.caimore.com.cn Email:
caimore@caimore.com
Copyright Reserved 2014-2019
Copyright:
All information in this user manual is protected by copyright law.
Whereby, no organization or individual shall copy or reprinted the whole or
part of this user manual by any means without written authorization from
Xiamen Caimore Communication Technology Co.,Ltd.
Trademarks :
Caimore, , & CAIMORE are all registered trademarks of Xiamen
Caimore Communication Technology Co.,Ltd. Other trademarks
mentioned in this manual belong to other organizations related. Xaimen
Caimore Communication Technology Co.,Ltd does not own the right of
other trademarks and logos.
Notice:
Due to product updates or functional upgrading, we may renew the
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content of this file, and this file only for reference. All the statements,
information, recommendations, etc. in this file do not compose any form
of guarantee and we Caimore reserves the right of final explanation.
Update Record:
Version
Mark
Date
Author
Issue
V1.0
1stofficial issue
2013.08.01
LINGZ
Contents
Contents..................................................................................................................................................3
Chapter 1 Product introduction....................................................................................................5
1.1 Product overview............................................................................................................... 5
1.2 Features.................................................................................................................................11
1.3 Technical parameters........................................................................................................12
Chapter 2 Installation............................................................................................................ 17
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2.1 Overview
................................................................................................................................17
2.2 Unpacking
.............................................................................................................................17
2.3Instillation & Cable connection
.......................................................................................18
2.3.1Dimensions:
...............................................................................................................18
2.3.2 Antenna
..................................................................................................................... 19
2.3.3 Install cables:
...........................................................................................................19
2.4 Power supply
........................................................................................................................20
2.5 Rail installation
................................................................................................................... 21
Chapter 3 Operation
...................................................................................................................... 21
Chapter 4 Two commonly commands
........................................................................................ 24
1、CAS03 command
...............................................................................................................24
2、CAS04 command
...............................................................................................................25
Annex I: LED description
.................................................................................................................26
Annex II: Power consumption
........................................................................................................27
Annex III: Protocol Introduction
....................................................................................................27
Comparison table of NMEA output statement
................................................................. 27
NMEA output format
.................................................................................................................28
GGA output format:
.......................................................................................................... 29
GLL Statement format:
..................................................................................................... 31
GSA Statement format:
.....................................................................................................32
GSV statement format:
.....................................................................................................33
MSS statement format:
.....................................................................................................35
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RMC statement format:
....................................................................................................36
VTG statement format:
..................................................................................................38
ZDA statement format:
.................................................................................................... 39
Device input format
.................................................................................................................. 40
PCMDG statement format:
..............................................................................................40
PCMDB statement format:
...............................................................................................41
PCMDE statement format
................................................................................................ 42
PCMDR statement format
................................................................................................42
Annex IV: Common Fault Analysis
...............................................................................................43
Chapter 1 Product introduction
1.1 Product overview
CAIMORE BD/GPS （
BeiDou Navigation Satellite System/ Global Positioning System,
hearby called BD/GPS as follow
） supports 2 frequency BD2 B1 and GPS L1, dual
32-channel parallel,fast positioning under BD mode in order to provide all day,
real-time location-based services for users in the service area with the positioning
accuracy rather to civilian one, short message communication, which can send the
information up to 120 characters, precision timing with 20 nanoseconds accuracy.
Compared to Beidou system, GPS has following advantages: first, widely covering
range,no communication blind. Beidou system has covered China and neighboring
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countries and regions, which can provide service not only for China, but also
neighboring country. Second, particularly suitable for user groups to do monitoring
management and data collection & transmission in a wide range. Third,integrating 2
resources of the Beidou navigation and positioning systems and satellite-based
augmentation system, it can be sued to rich the application of GPS. Fouth,
autonomous systems, due to its features of safe, reliable, stable, secure and strong, it
is suitable for application of the relevant departments.
It is used ProGee II Beidou/GPS SoC chip compatible with Beidou and GPS dual
system, which is a navigation receiver module of Beidou II and GPS dual system
satellite. Standard data output with NMEAO183, data refresh rate is 1HZ. The
accuracy of positioning and horizontal position is 3 m; vertical position accuracy: 6 m
1σ; speed accuracy: 0.1m/sec, 1σ((1σ represented 66.7% probability).
Xiamen Caimore BD/GPS is a industrial module which provide various serial ports,
such as RS232/ RS485 serial port. Industrial navigation module makes it much
stronger on anit-interference and more stability on transmission. Widely working
temperature range from -30 ºC to 75 ºC, and passed 3000V electric shock testing, it
is particularly suitable for using in harsh industrial environments. Meanwhile, it also
has other good features. Such as excellent EMC/EMI, stable & reliable system; passed
through EMC testing.
Due to above high-performance feature, Xiamen Caimore BD/GPS has been
widely applied in shipping, road transport, vehicle monitoring, vehicle navigation,
handheld and asset tracking or other fields.
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Of course, there will be some deviation in positioning. For the mainly reasons,
see as below:
1. Atmosphere (especially the delay signal of ionospheric and tropospheric)
Ionospheric delay is caused by the refraction affection between the earth’s
ionosphere surrounding and electromagnetic waves, which makes the
changeable propagation velocity of the signal. Tropospheric delay refers to
the refraction affection between the earth’s tropospheric surrounding and
electromagnetic waves, which makes the changeable GPS signal propagation
speed changes.
2.Satellite clock deviation.
Due to quite sophisticated, the satellite can calculate the number of tiny
message information, for example, the atomic clock (Cesium). However,there
will be some minor deviation caused by such precision device but not means
perfect. In another word, the satellite will not in the state to be monitored
every second, even positioning continues to be monitored. In this case, if any
slight positioning deviation or satellite ephemeris error generated during this
period, it will affect the accuracy of the calculation when the receiver do the
positioning.
3. Ephemeris error ( the satellite orbit errors)
When performing positioning, the satellite has to calculated various
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parameters of satellite orbit at a certain time according to kinds of ephemeris.
But whichever ephemeris be used, there will be a difference between the real
position and calculated one, that will be called ephemeris error.
Certainly, the other external variability factors also will generated
noticeable influence on the positioning accuracy of BD/GPS receiving terminal.
Such as the number of the currently visible satellites and the distribution of
the satellites.
4. Multipath effect ( the reflection signal of the receiver antenna from the
other surface)
Multipath effect refers to the receiver gets not only the satellite signal
but also reflection and refraction signal, due to the surrounding environment
of terminal receiving. For example, the probability of satellite received refract
or reflect signal is quite large, when it in high-rises building or in the jungle
mountains.
5.Human disturbance
The human impact of BD/GPS control section refers to the control section
problem or the deviation introduced by the user do the data processing, or
the affect by the operation of data processing software, or data processing
software imperfect algorithms affect on the positioning results. That is said
starting to mapping program while the navigation doing some additional data
processing, which will generated data deviation, and then to affect the
accuracy BD/GPS positioning.
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Some other factors, such as electromagnetic pulse interference inside the
car or electronic products, which also will have some more or less impact for
BD/GPS positioning, although those are within the controllable range.
The positioning error displayed on the map, the main reasons are below:
International Latitude and longitude coordinates standards WGS-84, domestic
must use GCJ-02 which is developed by National measurement Agency, to do the first
encryption of location. On the basis of it, Baidu map or Google map coordinates do
the BD-09 secondary encryption measures to improve the protection of personal
privacy. That will caused by some errors on displaying.
Products series as follows:
Product series
Product mode
Product description
BD/GPSseries
CM420
BD/GPS、RS232 interface
See as the product overview:
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Product interface:
Front interface
Back interface
Accessries:
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Power
serial port wire
（
RS232
）
RS485 wire
Optional antenna
1.2 Features
Industrial designing:
Industrial wireless module: Industrial wireless module has much
stronger anti-interference, more stability in transmission.
Strengthen board: PCB followed 20H and 3W principles, meanwhile
all of the circuit board is made of the health benefits material to
ensure the stable and the reliable.
Industrial components: all the industrial components had a strict
selection before producting.
Industrial power: widely power design, range from DC 5V-DC35V,
built-in power reverse overcurrent and overvoltage protection.
Stable and reliable:
ESD serial protection: RS232/RS485/TTL/RS422, built-in 15KV ESD
protection.
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Metal housing: metal housing in order to anti-radiation, and
anti-jamming;shell and system security isolation, lightning
protection design; meet the power requirements of safety
regulations; protection rating IP30; particularly suitable for harsh
industrial control environments.
EMC performance outstanding: passed 3000V electrical shock test,
especially suit for being used in harsh industrial environments;
system EMC / EMI performs excellent, system is very stable and
reliable; passed EMC test;
our company was awarded "The Best Supplier of China's Industrial
Control Industry. "in 2010.
1.3 Technical parameters
BD/GPS parameters
：
Item
Content
Wireless
module
Using industrial GPS wireless module
Receiver
types
Support BD2 B1和GPS L1 frequency, Dual 32-channel parallel;
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Interface Type:
Item
Content
Serial port
DB9, Support 1 RS485 or RS232 serial port
Data bit: 8 bit
Stop bits:: 1bit
Parity: no parity,
Serial speed: 2400bps ~ 115200bps. The default rate:9600bps
Flow Control: None
RS485
Support 1 dual 485 communication
Indicator
With "Power", "ACT" communication
Positionin
g accuracy
Horizontal accuracy: 3 m, 1σ; vertical accuracy: 6 m, 1σ, speed
accuracy: 0.1 m / sec, 1σ (1σ represented 66.7% probability)
Precise positioning time is about 5 minutes
.
Capture
time
Cold boot :32S；Auxiliary Start:<1 s；warm boot:<1s
Output
NMEA0183
Navigatio
n data
update
rate
1Hz
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Antenna
Interface
Standard SMA female interface, 50 ohm; optional
3M/5M/10M/15M antenna extension cable, meet the
different needs of customers
Power
Interface
Standard 3-pin power jack
Power supply
：
Item
Content
Supply
voltage
Wide voltage design range from DC 5V to DC32V; and built-in
power supply over-voltage protection and reverse current
protection
Standard
power
supply
DC9V/500mA
Communicati
ng Current
Average communication current: 60mA@+9VDC;
Physical features:
Item
Content
Shell
Metal shell: metal case, anti-radiation, anti-interference; shell
and system security isolation, lightning protection design;
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meet the power requirements of safety regulations; protection
rating IP30; particularly suit for harsh industrial control
environments.
Product
dimensions
81*55*20mm（not including the antenna and the fixed parts）
Packing Size
298x226x60mm
Weight
0.41kg
Other parameters:
The Typical Application
Item
Content
Operating
Temperature
-30 ºC ~+75ºC
Storage
Temperature
-30 ºC ~+75ºC
Relative
Humidity
95% (No condensation)
Transportation industry
Taxi positioning
Official vehicles positioning
Logistics vehicles positioning
Company vehicles positioning
Ship positioning
All kinds of Application Scenario
that need positioning
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Certification and Honor:
Item
Contents
Honors
The enterprise was awarded "Best Supplier of Customer
Satisfaction in China's Industrial Control Sector" in
2011; Company's GPRS DTU product was named
"Innovation Award"
High-tech
enterprises
Certified as state high-tech enterprises in 2010
Dual Soft
Enterprise
certified as state dual-soft enterprise
Copyright
The company has a patented technology to keep the
device stable and eight copyrighted software certificate
Offices
nine regional offices to provide customers with
convenient services
Registered Capital
registered capital 5 million; high-tech enterprise
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supported by Xiamen City
Historical
Precipitation
11 years industry R & D accumulation and application
Chapter 2 Installation
2.1 Overview
Xiamen Caimore BD/GPS should be installed in correctly way to reach the design
functions. The installation should be followed by a qualified engineer’s guidance who
has generally recognized by Caimore.
Notice:
Forbid to install the BD / GPS with power.
2.2 Unpacking
To ensure the safe transportation, Caimore BD/GPS always requires a reasonable
package, please keep the packaging material when you open the box so as to use
them again when before transporting in the future. Following are the main
components:
One unit CAIMORE BD/GPS
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1 electronic wire of DB9 RS232
One power adapter
One companion cd-rom
1 BeiDou/GPS antenna
Notice:
Please confirm that the accessories coincides with packing list when you open the
product box.
2.3Instillation & Cable connection
2.3.1Dimensions:
BD/GPS is packed into a metal housing, can be used independently. The fixed
holes on 2 sides is easy to instillation for users. See as the details drawing as below.
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Since the user’s data cable connector is on the bottom of the module, we provide
the installation accessories to fix the cables in order to improve the reliability of the
connection
2.3.2 Antenna
SMA female base antenna can be locked from the left side of modem housing.
2.3.3 Install cables:
BD/GPS user data interface DB9 is the connector cable of Box Header, pitch
2.0mm, 9pins.
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Pin
Signal
1
ONL
2
RX
3
TX
4
None
5
GND
6
None
7
SW
8
None
9
None
2.4 Power supply
BD/GPS can be used in complex environment, the range of power is usual very
big, The Power supply adopts advanced power technology and is provided power
directly by the external power supply transformer to adapt to complex application
environment excellently and improve the stability of system.
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2.5 Rail installation
In order to make the product stable to get into the customer's system, we can use
our products fixed rail. Rail installation is as follows:
Chapter 3 Operation
First, selecting the same serial number as the one when BD/GPS connect with PC
from the serial debugging assistant, to configuration the serial parameters, and then
click the “open serial port”. Configuration the serial parameters like this: baud
rate——9600; data bit——8; Parity——none; stop bit——1; flow control——none.
Then, you have to get the verification code of instruction first，and send out the
instruction with verification code before configuration successfully.Please pay
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attention that since the configuration information is not be saved into the flash, it will
request to reset after each reboot. See as following steps:
1、First, open the checksum software
, and then type the data
between $ and * from the command into the command bar (for
example:command
$PCAS03,1,1,1,1,1,1,0,0*）.
2、Click “checksum calculation” to generate a verification code (02), and
then get the instruction with check code（
$PCAS03,1,1,1,1,1,1,0,0*02), as
following:
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3、put the instruction with the check code into the character input box of the
serial debugging assistant, and append <CR><LF> before clicking “ send”, then the
setting is complete;
The information will be displayed like this:
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Chapter 4 Two commonly commands
1、 CAS03 command
CAS03 command is used to set the output or stop output NMEA sentence.
Command structure:
$PCAS03,x,x,x,x,x,x,x,x*hh <CR><LF>
Example: $PCAS03,1,1,1,1,1,1,0,0*02
NO.
Mark
Field Description
Example
1
$PCAS03
Statements starting
$PCAS03
2xGGA output interval (note
1)
1
3xGLL output interval
1
4xGSA output interval
1
5xGSV output interval
1
6xRMC output interval
1
7xVTG output interval
1
8xZDA output interval
0
9xRemain
0
10
*hh
Checksum
*02
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[note 1]：Output frequency
n （1~9 ） refers to output one time every N positioning, 0 means that no
statement will be output, blank means remain the original configuration.
2
、
CAS04 command
CAS04 command is used to configure the operation system.
Command structure:
$PCAS04,x*hh<CR><LF>
Example:$PCAS04,1*18
[note 1]: Satellite system instructions
This field is hexadecimal, each bit point a system that is
11
<CR><LF>
Carriage return line
-
NO.
Mark
Field Description
Example
1
$PCAS04
Statements starting
$PCAS04
2xSatellite system
instructions（note 1
）
1
3
*hh
Checksum
*18
4
<CR><LF>
Carriage return line
-
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Annex I: LED description
Indicator
Statue
Description
Effective bit
Effective system
bit0
GPS
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Power
On
Norma l
Off
The power is off
Module
second pulse
Flicker
Receiving the data
Off
No data to receive
Annex II: Power consumption
The data in the following table is measured in the normally signal situatio, which is
just for reference.
Product
Data transmission current
in connection statue（9V
）
BD/GPS series
60(mA)
Annex III: Protocol Introduction
Comparison table of NMEA output statement
Date
Time
Latitud
Longitud
Elevatio
Height
Location
Satellites
Ground
Azimut
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een
state
speed
h
GGA
√√√√√
√
GLL√√√√
RMC
√√√√√√√
VTG
√
√
ZDA
√
√
GSA
√
MSS
GSV
√√√
NMEA output format
Xiamen Caimore BD/GPS MODEM-CM420 transfer the data by serial port.Serial
protocol and data information see as follows:
Interface
Output format
Serial output
Asynchronous communications, start bit 1, 8 data bits, stop bit 1,
no parity, no flow control;
Baud rate can be set between 2400 to 115200, the default baud
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rate 9600;
Support NMEA0183 protocol;
Output rate 1Hz;
Output statement GGA, GLL, GSA, GSV, RMC;
GGA output format:
Format
$GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<ll>,
<12>,<l3>,<14>,<15><CR><LF>
Sample
data
$GPGGA,161229.478,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M,7.
3,M, ,0000*18 <CR><LF>
Descripti
on
Location Data
Field Definitions
1
Hour, minute and second of UTC. I.e: 161229.478 means 16hours
12minutes 29.478 seconds
2
Latitude, format: ddmm.mmmm（d: degree,m: sub-delegation
）
3
Value N（northern hemisphere）or S（southern hemisphere）
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4
Longitude, format:dddmm.mmmm（d:degree，m:sub-delegation)
5
Value E（east longitude）or W（west longitude
）
6
GPS status,0= no locate, 1= non-differential positioning, 2 =
differential positioning, 6 = Estimating
7
The number of the satellite which participated in positioning
computation（00~12
）
8
HDOP Horizontal accuracy factor（0.5~99.9）
9
The average altitude -9999.9~99999.9
10
Unites, M is meter
11
Geoid difference（in the WGS-84 coordinates, the difference between
the ellipsoid height and an average altitude,negative value means
below the ellipsoid
）
12
Unites, M is meter
13
Differential time（the seconds of receiving the differential time in the
last time, keep blank if no differential positioning
）
14
Differential station ID number 0000~1023（keep blank if no
differential positioning）
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15
Checksum
<CR><LF
>
It will over when carriage return line
GLL Statement format:
Format
$GPGLL,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8><CR><LF>
Sample
data
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A,A*41
<CR><LF>
Descripti
on
Field Definitions
Field Definitions
1
Latitude, range：0000．00000~8959.9999; format: ddmm.mm（d:
degree,m: sub-delegation
2
Value N（northern hemisphere）or S（southern hemisphere）
3
Longitude,format: dddmm.mmmm（d:degree，m:sub-delegation）;
range:0000．00000~17959.99999
4
Value E（east longitude）or W（west longitude
）
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5
Hour, minute and second of UTC. hhmmss.sss
6
Data state bit A：positioning data valid, V：invalid data
7
System positioning mode,A=Automatic; D = difference; E = fast
triangulation; N = output invalid data ; R = probably bit; S =
simulation
8
checksum
<CR><LF
>
It will over when carriage return line
GSA Statement format:
Format
$GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3
>,<3>,<3>,<4>,<5>,<6>,<7><CR><LF>
Example
date
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 <CR><LF>
Descripti
on
Navigation accuracy and visibility Satellite
Field Definitions
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1
Positioning mode: M = mannually （for 2-2-dimensional and
3-dimensional） A =Automatic
2
Positioning calculation mode:1 = no positioning; 2 = 2-dimensional
positioning; 3 = 3-dimensional positioning
3
The number of the satellite which participated in positioning
computation, 00 means none, GPS satellite number 1-32
4
Position dilution of precision（PDOP
）
5
Horizontal accuracy factor（HDOP）
6
Vertical dilution of precision（VDOP）
7
checksum
<CR><LF
>
It will over when carriage return line
GSV statement format:
Format
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<4>,<5>,<6>,<7>,,,,,
,,,,,<8><CR><LF>
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Example
data
$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,13
8,42*71
$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41<CR>
<LF>
Descripti
on
Visible navigation satellites, using a GSV when fewer than 5 visible
satellites; Using 2 GSV when satellite number is more than 4 but less
then 9, and so on.Each GSV contain up to four satellites’information.
Field Definitions
1
Total number of GSV messages(1~9)
2
The NO. Of GSV information (1~9)
3
The total number of visible satellites in the currently sky
4
The number of 1stvisible satellite, range from 1to 32
5
The elevation angle of 1stvisible satellite (00~90 degree)
6
The orientation angles of 1stsatellite (000~359 degree), North is 0
degrees
7
SNR of 1stvisible satellite; range from 0 to 99，it will empty when no
tracking.Typical values between 0 and 50, SNR is very extremely rare
to get 99, although it can be up to. 50 is a nice value
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……
The number of visible satellite, range from 1to 32
The elevation angle of visible satellite (00~90 degree)
The orientation angles of satellite (000~359 degree), North is 0
degrees
SNR of visible satellite; range from 0 to 99，it will empty when no
tracking.Typical values between 0 and 50, SNR is very extremely rare
to get 99, although it can be up to. 50 is a nice value
8
checksum
<CR><LF
>
It will over when carriage return line
MSS statement format:
Format
$GPMSS,<1>,<2>,<3>,<4>,<5>,<6><CR><LF>
Example
date
$GPMSS,55,27,318.0,100,1,*66<CR><LF>
Descripti
MSS(SNR,Signal intensity, frequency, bit rate)
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on
Field Definitions
1
Signal intensity unite:dB
2
SNR Unite:dB
3
Beacon frequency unite:kHz
4
Beacon bit frequency unite:bit: bit/second
5
Number of Channels
6
checksum
<CR><LF
>
It will over when carriage return line
RMC statement format:
Format
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<ll>,
<12>,<l3><CR><LF>
Example
data
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,12
0598,,,A*10<CR><LF>
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Descripti
on
Streamlined navigation data
Field Definitions
1
Hour, minute and second of UTC.
2
Data state bit A：positioning data valid, V：invalid data
3
Latitude,,format: ddmm.mm（d: degree,m: sub-delegation
4
Value N（northern hemisphere）or S（southern hemisphere）
5
Longitude,format: dddmm.mmmm（d:degree，m:sub-delegation）;
6
Value E（east longitude）or W（west longitude
）
7
The speed compare to ground, unite : knots
8
Ground course (000.0 ~ 359.9 degree, take NORTH as the reference)
9
Hour, minute and second of UTC.，2 bytes each, Year will be taking
after 2 bytes
10
Declination E=east or W=west Ignore
11
Declination direction, E( east) or W (west) Ignore
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12
System positioning mode,A=Automatic; D = difference; E = fast
triangulation; N = output invalid data ; R = probably bit; S =
simulation
13
checksum
<CR><LF
>
It will over when carriage return line
VTG statement format:
Format
$GPVTG,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10><CR>
<LF>
Example
data
$GPVTG,309.62,T, ,M,0.13,N,0.2,K,A*10<CR><LF>
Descripti
on
VTG(Azimuth and ground speed)
Field Definitions
1
Azimuth Measurement course unit: degree
2
Reference direction
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3
Azimuth Measurement course unit: degree
4
Reference direction: Geomagnetic South Pole (close to the geographic
North Pole)
5
Speed: Horizontal speed, unit: Section
6
unit: Section
7
Speed: Horizontal speed, unite: km/hour
8
unite: km/hour
9
System positioning mode,A=Automatic; D = difference; E = fast
triangulation; N = output invalid data ; R = probably bit; S =
simulation
10
checksum
<CR><LF
>
It will over when carriage return line
ZDA statement format:
Format
$GPZDA,<1>,<2>,<3>,<4>,<5>,<6>,<7><CR><LF>
Example
data
$GPZDA,181813,14,10,2003,,*4F<CR><LF>
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Descripti
on
The description of the time and date
Field Definitions
1
Hour, minute and second of UTC.
2
Date range from1~31
3
month range:1~12
4
year
5
The current time zone hours
6
The current time zone minutes
7
checksum
<CR><LF
>
It will over when carriage return line
Device input format
PCMDG statement format:
Format
$PCMDG,<1><CR><LF>
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Example
data
$PCMDG,1<CR><LF>
Descripti
on
Setting the positioning mode selection
Field Definitions
1
n=1~3
：
1 = single BD location; 2 = Single GPS positioning; 3 = GPS + BD
Integrated Location
<CR><LF
>
It will over when carriage return line
PCMDB statement format:
Format
$PCMDB,<1>,<2><CR><LF>
Example
data
$PCMDB,9600,s<CR><LF>
Descripti
on
Setting the current baud rate
Field Definitions
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1
Baud rate 2400,4800,9600,19200,38400,57600,115200
2
The flag of saving the configuration, it will save the configuration
when it is “s”, otherwise not to save. It will be initial baud rate when it
reboot.
<CR><LF
>
It will over when carriage return line
PCMDE statement format
Format
$PCMDE<CR><LF>
Example
data
$PCMDE<CR><LF>
Descripti
on
Clearing the ephemires almanac
Field Definitions
<CR><LF
>
It will over when carriage return line
PCMDR statement format
Format
$PCMDR,<1><CR><LF>
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Example
data
$PCMDR,5<CR><LF>
Descripti
on
To configured the module to restart
Field Definitions
1
The setting value should be 5, it will be restart the module after 1
second
<CR><LF
>
It will over when carriage return line
Annex IV: Common Fault Analysis
（1） the power indicator is off.
Please check if the connection cable is properly connected; the power supply
is met the requirement & standard, otherwise it maybe damage BD/GPS。
（2）Module second pulse indicator is off.
It will be flashing only receiving the data.
（3）No effect configuration, when the device is configuration
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1. Please pay attention to check the baud rate of BD/GPS ( default value is
9600), check the serial cable is normal.
2. Check the item code is right.
3. Check to end as newline when sending command by manually.
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