GPS Vehicle Tracker

GPS
Vehicle
Tracker
User Manual
V6.1
CR-GT300VT
Contents
1 Product Overview .................................................................................................................. - 3 2 For Your Safety ..................................................................................................................... - 3 3 CR-GT300VT Characteristics ................................................................................................... - 4 4 Getting Started ..................................................................................................................... - 4 4.1 Hardware and Accessories ............................................................................................. - 4 4.2 View ........................................................................................................................... - 5 4.3 Functional Parts ............................................................................................................ - 5 4.4 Connecting and Installation............................................................................................ - 6 5. Change Password ................................................................................................................. - 7 6. Time Zone........................................................................................................................... - 7 7. Track .................................................................................................................................. - 8 7.1 Track by SMS ............................................................................................................... - 8 7.2 Track by Calling ............................................................................................................ - 8 7.3 Track by Preset Interval ................................................................................................. - 8 7.4 Google Earth and Google Map ........................................................................................ - 9 7.5 Track by MS01.............................................................................................................. - 9 7.6 Track by GPRS between Server and Tracker ....................................................................- 10 7.6.1 Set Tracker’s GPRS ID ..........................................................................................- 10 7.6.2 Set APN .............................................................................................................- 10 7.6.3 Set IP and Port ...................................................................................................- 10 7.6.4 Set DNS Server IP (optional) ................................................................................- 11 7.6.5 Enable GPRS Tracking ..........................................................................................- 11 7.6.6 Set GPRS Interval ...............................................................................................- 11 7.7 Track by GpsGate ........................................................................................................- 11 8. Authorization ......................................................................................................................- 11 9. Low Battery Alarm ..............................................................................................................- 12 10. Speeding Alarm ................................................................................................................- 12 11. Movement/Geo-fence.........................................................................................................- 12 11.1 Movement Alarm........................................................................................................- 12 11.2 Geo-fence Alarm ........................................................................................................- 13 12. Engine Cut .......................................................................................................................- 13 12.1 Output Control (Unlimited) ..........................................................................................- 14 12.2 Output Control (Limited) .............................................................................................- 14 13. Veer Report ......................................................................................................................- 15 14. Initialization .....................................................................................................................- 15 15. Password Initialization .......................................................................................................- 15 16. Parameter Editor ...............................................................................................................- 15 17. Copyright and Disclaimer ...................................................................................................- 16 Annex 1. SMS Command List ...................................................................................................- 16 Annex 2. Troubleshooting ........................................................................................................- 21 Contacts ................................................................................................................................- 22 -
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1 Product Overview
CR-GT300VT is a GPS/GSM/GPRS tracking device specially developed and designed for vehicle real-time
tracking and fleet management.
With superior GPS and GPRS modules, CR-GT300VT has good sensitivity and stable performance. It can get
accurate GPS fix even in remote places.
CR-GT300VT has the following functions and features:
SMS and GPRS TCP/UDP Communication
Track on Demand
Show Location Directly on Mobile Phone
Track by Time Interval
SOS Panic Button
Movement Alarm
Geo-fencing Control
Low Battery Alarm
Speeding Alarm
GPS Blind Area Alarm (in/out)
Power-cut Alarm
Engine Cut (Stop Engine)
2 For Your Safety
Read these simple guidelines. Not following them may be dangerous or illegal.
Proper Connection
When connecting with other device, read carefully its manual so as to
carry out correct installation. Do not connect it to other incompatible
devices.
Qualified Accessories
Use original parts, qualified batteries and peripheral equipments to
avoid damage to CR-GT300VT.
Safe Driving
Drivers should not operate this product while driving.
Qualified Service
Only qualified personnel can install or repair CR-GT300VT.
Water Resistance
CR-GT300VT is not water resistant. Keep it dry. Install it inside the
vehicle
Confidential Phone Number
For safety reason, do not tell other people the mobile phone number of
your CR-GT300VT without taking precautions of security settings.
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3 CR-GT300VT Characteristics
Items
Specification
Power Supply
+9V - +36V / 1.5A
Backup Battery
850mAh
Normal power consumption
85mA/h
Dimension
115mm x 60mm x 21mm
Installation Dimension
115mm x 79mm x 21mm
Weight
140g
Operating temperature
-20° to 55° C
Humidity
5% to 95% Non-condensing
Frequency
GSM 900/1800/1900Mhz or GSM 850/900/1800/1900Mhz (optional)
GPS Chipset
latest GPS SIRF-Star III chipset
GPS Sensitivity
-158Db
GPS Frequency
L1, 1575.42 MHz
C/A Code
1.023 MHz chip rate
Channels
20 channel all-in-view tracking
Position Accuracy
10 meters, 2D RMS
Velocity Accuracy
0.1 m/s
Time Accuracy
1 us synchronized to GPS time
Default datum
WGS-84
Reacquisition
0.1 sec., average
Hot start
1 sec., average
Warm start
38 sec., average
Cold start
42 sec., average
Altitude Limit
18,000 meters (60,000 feet) max.
Velocity Limit
515 meters/second (1000 knots) max.
LED
1 LED light to show working status.
Button
One SOS button
Interface
One input and one output
4 Getting Started
This section will describe how to set up your CR-GT300VT.
4.1 Hardware and Accessories
CR-GT300VT is supplied in a box which includes:
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CR-GT300VT with
GPS Antenna
GSM Antenna
Screws
Wires with SOS Button
CD
Battery
4.2 View
Front View
Side View
Back View
4.3 Functional Parts
Battery LED
Off
Power is off or charging is complete
Flashing (every 0.1 second)
Low power
On
Charging
Flashing (1 second on and 2 seconds off)
Working
Power On/Off Button
To turn on/off CR-GT300VT.
Note: The switch is on off side as factory default. When the wires are
plugged in, CR-GT300VT will be switched on automatically as the two yellow
cables (SW1 and SW2) are connected together.
SOS Button
SOS button is connected with the wires. Press it to send SOS alarm to the
preauthorized phone number.
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Used for firmware update and configuration on PC. (USB-to-Serial Adaptor
Mini USB
is required for firmware update and configuration by computer)
SIM Card
To insert SIM card here
GSM Antenna
Connector for GSM antenna
GPS Antenna
Connector for GPS antenna
Screw Holes
There are 4 screw holes on the tracker, 2 along either side that act as fixing
points to the vehicle
PINs Connector
PIN
Color
Function
DC IN
Red
DC In (power input). Input voltage: 9V~36V. 12V suggested.
GND
Black
GND
IN
White
Input. Negative triggering. Low voltage (0V) when effective and open drain
or HIGH voltage (>1V and max. 45V) when ineffective.
OUT1
Blue
Output. Low voltage (0V) when effective and open drain when ineffective.
Output open drain sink voltage (ineffective): 45V max.
Output LOW voltage sink current (effective): 500mA max.
SW1
Yellow
SW1 connected with power switch
Note: if you need to connect it to other switch, make sure the voltage should
not over 4.5V.
SW2
Yellow
SW2 connected with power switch
Note: if you need to connect it to other switch, make sure the voltage should
not over 4.5V.
4.4 Connecting and Installation
Read this manual before using your CR-GT300VT and check if all parts are included in the packaging box.
4.4.1 Ensure that your CR-GT300VT has a working SIM installed.
- Check that the SIM has not run out of credit (test the SIM in a phone to make sure
it can send and receive SMS)
- Check that the SIM Lock code is turned off
- If you require the function of sending an SMS location report to the authorized
phone number when it makes a call to the CR-GT300VT, please make sure the SIM
installed supports displaying caller ID.
Before inserting SIM card, cut off the power for CR-GT300VT.
Install SIM Card
- Unscrew and remove the front cover of CR-GT300VT.
- Insert the SIM card by sliding it into the card slot with the chip module facing to the
connectors on PCB.
- Put back the front cover and screw it up.
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4.4.2 Antenna Connection
Connect the GSM Antenna to CR-GT300VT.
Connect the GPS Antenna to CR-GT300VT.
- GPS antenna is used to receive satellite signals in the sky. It should be fixed to face
the sky and should not be covered or shielded by any objects containing metal, such
as the metallic windshield.
4.4.3 Find a suitable place inside the car for installing CR-GT300VT. Wiring
connections must be firm and reliable and the joints should be wrapped with
insulating tape tightly. The unused electrical wire should be properly insulated.
Check if all wirings have been connected correctly and then connect the AVL unit to
the motor power.
Check that the Red LED (Battery) is flashing 1 second on and 2 seconds off.
Make a missed phone call the CR-GT300VT using a mobile phone to check if the
calling can go through and the CR-GT300VT replies with an SMS indicating longitude,
latitude, speed and date.
5. Change Password
Command: W******,001,######
Description: Change user’s password.
Note:
1. ****** is user’s password and the default password is 000000. The tracker will only accept commands
from a user with the correct password. Commands with wrong password will be ignored.
2. ###### is the new password. Password should be 6 digits.
Example:
W000000,001,123456
W123456,001,999999
6. Time Zone
Command: W******,032,T
Description: Correct time into your local time
Note:
1. Default time of the tracker is GMT
2. This correction is applied to location reports by SMS and SMS alarms.
T=0, to turn off this function.
T=[1, 65535] to set time difference in minute to GMT.
For those ahead of GMT, just input the time difference in minute directly. For example, GMT+8,
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W000000,032,480
‘-‘is required for those behind GMT. For example, W000000,032,-120.
Example:
W000000,032,480
W000000,032,-120
7. Track
7.1 Track by SMS
- Track on Demand - Reply with longitude, latitude, speed and date
Command: W******,000
Description: Get the current location of the tracker, send this SMS or make a telephone call directly to the
tracker and it will report its longitude and latitude by SMS with format as follows:Latitude = 22 32 36.63N Longitude = 114 04 57.37E, Speed = 2.6854Km/h, 2008-12-24,01:50
Example:
W000000,000
- Track on Demand - Reply with a Google link
Command: W******,100
Description: Send this command to the tracker and then you receive an SMS with an http link. Click on the
link then the location can be shown directly on Google Map on your mobile phone. For example:
http://maps.google.com/maps?f=q&hl=en&q=22.540103,114.082329&ie=UTF8&z=16&iwloc=addr&om=1
Note: Only smart phones and PDA support this function.
Example:
W000000,100
7.2 Track by Calling
Make a missed call to the tracker and it will report its longitude and latitude by SMS with format as follows:Latitude = 22 32 36.63N Longitude = 114 04 57.37E, Speed = 2.6854Km/h, 2008-12-24,01:50
7.3 Track by Preset Interval
Command: W******,002,XXX
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Description: Set an interval for the tracker to continuously return its location by SMS
Note:
1. XXX is the interval in minute.
2. If XXX=000 to turn off tracking by time
Example:
W000000,002,030
The tracker will send location data back to your mobile phone every 30 minutes.
7.4 Google Earth and Google Map
Download Google Earth from http://earth.google.com/.
Start Google Earth (For more information about Google Earth please refer to http://earth.google.com/) or
go to http://maps.google.com in your Internet Explorer
Input the latitude and longitude that you receive from the tracker by SMS and click the search button.
Google Earth or Google Maps will display the location for you.
Example:
When you receive: Latitude = 22 32 40.05N Longitude = 114 04 57.74E
Type as the following picture shows:
(Note: you should input the latitude and longitude as: 22 32 40.05N 114 04 57.74E)
And then you can find the location of your tracker:
Or you can use local map software on PDA or car navigation device to input the coordinates.
7.5 Track by MS01
If you have bought our GPS Tracking Software MS01, after proper configuration, you can do tracking on
MS01.
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GPS Tracking Software - MS01
Please refer to MS01 User Guide for more information.
7.6 Track by GPRS
between Server and Tracker
7.6.1 Set Tracker’s GPRS ID
Command: W******,010,ID
Description: Sets a digital GPRS ID for the tracker.
Note:
GPRS ID must not over 14 digits.
Example:
W000000,010,00001
7.6.2 Set APN
Command: W******,011,APN,Username,Password
Description: Set APN details for the tracker
Note:
1. APN username and password are optional. If no APN username and password are required, just input APN
only;
2. APN defaulted as ‘CMNET’;
3. APN + username + password should not over 39 characters.
Example:
W000000,011,CMNET,Cerevo,6688
W000000,011,CMNET
7.6.3 Set IP and Port
Command: W******,012,IP,Port
Description: Set IP and Port for tracker for GPRS communication.
Note:
1. IP is your server’s IP or the domain name.
2. Port: [1,65534]
Example:
W000000,012, 220.121.7.89,8500
W000000,012,www.Cerevo.net,8500
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7.6.4 Set DNS Server IP (optional)
Command: W******,009,DNS Server IP
Description: In case the domain name you set by the last command (W******,012,IP, Port) doesn’t work,
which means your server IP is not properly set. You can first use this command to set DNS Server IP (please
check with your DNS server provider for the DNS Server IP) and then redo the command W******,012,IP,
Port.
Example: W000000,009,220.23.4.90
7.6.5 Enable GPRS Tracking
Command: W******,013,X
Description: Enable GPRS tracking function.
Note:
X=0, to turn off GPRS tracking (default);
X=1, to enable GPRS tracking via TCP
X=2, to enable GPRS tracking via UDP
Example: W000000,013,1
7.6.6 Set GPRS Interval
Command: W******,014,XXXXX
Description: Set time interval for sending GPRS packets.
Note:
XXXXX should be in five digits and in unit of 10 seconds.
XXXXX=00000, to turn off this function;
XXXXX=00001~65535, time interval for sending GPRS packet and in unit of 10 seconds.
In this example, the tracker will send every 600 seconds (10 minutes).
Example: W000000,014,00060
The tracker will send every 600 seconds (10 minutes).
For more information regarding GPRS tracking please refer to <GPRS Communication Protocol>
7.7 Track by GpsGate
The CR-GT300VT supports GpsGate Software.
Please contact us or GpsGate for more information of settings.
8. Authorization
Command: W******,003,F,1,T
Description: Authorize phone numbers for the SOS button for receiving location reports and SMS alarms.
Note:
F=0, to turn off this function; (default)
F=1, Sends SMS to the authorized phone number;
T: Preset phone number. Max.16 digits
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Example:
W000000,003,1,1,88888888
SOS Button Connection:
Connect the SOS button and wires as below picture shows:
Input
White
SOS Button
Note: input voltage to Input must not over 45V
After above authorization is complete, once the SOS is pressed, an SOS SMS - “SOS Alarm” will be sent to
the preauthorized phone number and then a message with longitude and latitude to follow.
9. Low Battery Alarm
Command: W******,004,X
Description: When the tracker’s voltage is lower than the preset value, it will send an SMS alarm to the
authorized phone number for SOS.
Note: X is the preset value of voltage.
=0 , to turn off this function
=1, <3.3V
=2 , <3.4V
=3 , <3.5V (default)
=4 , <3.6V
=5 , <3.7V
Example: W000000,004,2
10. Speeding Alarm
Command: W******,005,XX
Description: Turns on speeding alarm. When the tracker speeds higher than the preset value, it will send
an SMS to the phone number for SOS.
Note: XX is the preset value of speed and in 2 digits.
=00 , to turn off this function
=[01, 20] (unit: 10Km/h)
Example: W000000,005,08
When the tracker’s speed is over 80km/h, an SMS alarm will be sent out.
11. Movement/Geo-fence
11.1 Movement Alarm
Command: W******,006,XX
Description: When the tracker moves out of a preset square scope, it will send an SMS alarm to the
authorized phone number for SOS.
Note: XX is the preset distance to the tracker’s original place.
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=00, to turn off this function
=01, 30m
=02, 50m
=03, 100m
=04, 200m
=05, 300m
=06, 500m
=07, 1000m
=08, 2000m
Example: W000000,006,06
When tracker moves out of this square scope, it will send out an SMS alarm.
11.2 Geo-fence Alarm
Command: W******,017,X or W******,117,X
Description: Turns on Geo-fencing alarm. When the tracker moves in/out the preset scope, it will send an
SMS alarm to the authorized phone number for SOS.
Note:
1. 017 is for alarm when tracker moves out the preset scope;
2. 117 is for alarm when tracker moves in.
3. X is the coordinates which include: Lower-left X,Lower-left Y,Upper-right X,Upper-right Y
4. Lower-left X should be less than Upper-right X;
5. All longitudes and latitudes should be in ASCII format as follows:Longitude: DDDMM.MMMM,E/W. 4 places of decimal. ‘0’ is needed to be stuffed if no value available.
Latitude: DDMM.MMMM,N/S. 4 places of decimal. ‘0’ is needed to be stuffed if no value available;
6. Send W******,006,00 to turn off Geo-fence function.
Example:
W000000,017,11404.0000,E,2232.0010,N,11505.1234,E,2333.5678,N
W000000,117,11404.0000,E,2232.0010,N,11505.1234,E,2333.5678,N
Remarks:
1. Only one alarm can be set in either In or Out;
2. Only one alarm can be set in either Movement Alarm or Geo-fence Alarm.
12. Engine Cut
Relay Connection: Connect a replay as below picture shows:
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White wire
SOS button
White
85
Relay
30
86
P1
Green
P2
VCC
Yellow
P1
P2
Relay
Power for ignition
Engine ignition loop
Battery
Calculate the correct VCC value according to relay’s parameter to comply with the following requirements:
Output open drain sink voltage (ineffective)
45V max
Output low voltage sink current (effective)
500mA max
Normally two green wires are connected solidly (P1 and P2 are Normal Close [NC] in the relay), when the
Output (Out1) is open (Out1 be Low voltage), two green wires will disconnect, the engine is then cut.
12.1 Output Control (Unlimited)
Command: W******,020,1,F
Description: Send this command to control the Output of CR-GT300VT
Note:
F=0, to close the output (open drain);
F=1, to open the output (low voltage).
Example: W000000,020,1,1
Once the relay is properly installed, send this command to stop the engine.
12.2 Output Control (Limited)
Command: W******,120,F or W******,220,F
Description: Send this command to control the Output of CR-GT300VT. This command is only workable
when the speed is below 10km/h(command 120) or 20km/h(command 220) and meantime GPS is available.
Note:
F=0, to close the output (open drain);
F=1, to open the output (low voltage).
Example:
W000000,120,1
W000000,220,1
Once the relay is properly installed, send this command to CR-GT300VT. When its speed reaches at 10km/h
or 20km/h, it will stop the engine.
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13. Veer Report
Command: W******,036,degree
Description: when the heading direction of the tracker changes over the preset degree, a message with
location data will be sent back to the server by GPRS. This is to enhance the accuracy when the tracker make
a direction change.
Note:
degree=0, to turn off this function.
degree=[1,360], to set degree of direction change.
Example: W000000,036,90
When the tracker turns more than 90 degree, a message will be sent back to the server.
14. Initialization
Command: W******,990,099###
Description: This is to make all settings (except for the password) back to factory default.
Note: Turn on the device, press the SOS button for five times continuously and the red LED will be on, and
then send (within 120 seconds) this SMS to the tracker.
### is the ending character and is required in the text message.
Example: W000000,990,099###
15. Password Initialization
Command: W888888,999,666
Description: This is to make the password back to factory default in case you forget your password.
Note: Turn on the tracker, press the SOS button for five times continuously and the red LED will be on, and
then send this SMS (within 120 seconds) to the tracker to make the password back to factory default
(000000).
Example: W888888,999,666
For more details regarding SMS commands, please go to Annex 1 Command List.
16. Parameter Editor
The tracker can be configured by computer using the Parameter Editor.
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GPS Tracker Parameter Editor V1.39
Please refer to <GPS Tracker Parameter Editor> for more information.
17. Copyright and Disclaimer
©CEREVO TECHNOLOGY LIMITED. All rights reserved.
The information contained herein may be changed at any time without prior notification. This manual nor
any parts thereof may not be reproduced for any purpose whatsoever without the express written consent
of Cerevo, nor transmitted in any form either electronically or mechanically, including photocopying and
recording.
In no event shall Cerevo be liable for direct, indirect, special, incidental, or consequential damages
(including but not limited to economic loss, such as loss of profits, loss of use of profits, loss of business or
business interruption, loss of revenue, loss of goodwill or loss of anticipated savings) arising out of the use
or inability to use the product or documentation, even if advised of the possibility of such damages.
Annex 1. SMS Command List
Note: ****** is user’s password and the default password is 000000. The tracker will only accept
commands from a user with the correct password. Commands with wrong password will be ignored.
Description
SMS Command
Example
Track on Demand
W******,000
W000000,000
Remarks: To get the current location of the tracker, send this SMS or make a telephone call directly to the tracker and it will
report its longitude and latitude by SMS with format as follows:Latitude = 22 32 36.63N Longitude = 114 04 57.37E, Speed = 2.6854Km/h, 2008-12-24,01:50
Track on Demand
W******,100
W000000,100
-Google Link
Remarks: Send this command to the tracker and then you receive an SMS with an http link. Click on the link then the location
can be shown directly on Google Map on your mobile phone. For example:
http://maps.google.com/maps?f=q&hl=en&q=22.540103,114.082329&ie=UTF8&z=16&iwloc=addr&om=1
(Note: Only smart phones and PDA support this function.)
Change Password
W******,001,######
W000000,001,123456
Remarks: To change user’s password. ###### is the new password. Password should be 6 digits.
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W******,002,XXX
Track by Interval
W000000,002,030
Remarks: To set interval for automatic timed report.
XXX is the interval in minute. If XXX=000 to turn off tracking by time.
In this example, the tracker will send location data back to your mobile phone every 30 minutes.
W******,003,F,1,T
Authorization
W000000,003,1,1,88888888
Remarks: To authorize phone numbers for the SOS button (input) for receiving location reports and SMS alarms.
F=0, to turn off this function (default).
F=1, to turn on the function of sending SMS reports/alarms to the authorized phone number.
T: Preset phone number. Max.16 digits
W******,004,X
Low Battery Alarm
W000000,004,2
Remarks: When the tracker’s voltage is lower than the preset value, it will send an SMS alarm to the authorized phone number
for SOS.
X is the preset value of voltage.
=0 , to turn off this function
=1, <3.3V
=2 , <3.4V
=3 , <3.5V (default)
=4 , <3.6V
=5 , <3.7V
W******,005,XX
Speeding Alarm
W000000,005,08
Remarks: When the tracker speeds higher than the preset value, it will send an SMS to the authorized phone number for SOS.
XX is the preset value of speed and in 2 digits.
=00 , to turn off this function
=[01, 20] (unit: 10Km/h)
In this example, when the tracker’s speed is over 80km/h, an SMS alarm will be sent out.
W******,006,XX
Movement Alarm
W000000,006,06
Remarks: When the tracker moves out of a preset square scope, it will send an SMS alarm to the authorized phone number for
SOS.
XX is the preset distance to the tracker’s original place
=00, to turn off this function
=01, 30m
=02, 50m
=03, 100m
=04, 200m
=05, 300m
=06, 500m
=07, 1000m
=08, 2000m
Geo-fence Alarm
W******,017,X
W000000,017,11404.0000,E,2232.0010,N,11505.12
W******,117,X
34,E,2333.5678,N
W000000,117,11404.0000,E,2232.0010,N,11505.12
34,E,2333.5678,N
Remarks: 017 is for alarm when tracker moves out the preset scope; 117 is for alarm when tracker moves in.
When the tracker moves in or out, it will send an SMS alarm to the authorized phone number for SOS.
X is the coordinates which include:
Lower-left X,Lower-left Y,Upper-right X,Upper-right Y
For example, 11404.0000,E,2232.0010,N,11505.1234,E,2333.5678,N
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Note:
1.
Lower-left X should be less than Upper-right X;
2.
All longitudes and latitudes should be in ASCII format as follows:Longitude: DDDMM.MMMM,E/W. 4 places of decimal. ‘0’ is needed to be stuffed if no value available.
Latitude: DDMM.MMMM,N/S. 4 places of decimal. ‘0’ is needed to be stuffed if no value available;
3.
Only one alarm can be set in either Movement Alarm or Geo-fence Alarm;
4.
Send W******,006,00 to turn off Geo-fence function.
Extended Functions
W******,008,ABCDEFGHIJ##
W000000,008,1011100011###
#
Remarks:
A=0, turn off the function of sending SMS location report after a phone call is made to the tracker.
A=1, turn on the function of sending SMS location report after a phone call is made to the tracker.
B=0, location data of NMEA 0183 GPRMC will be interpreted into normal text for easy reading.
For example, Longitude = 114 degree - 04 minute -57.74 second, Latitude = 22 degree -32 minute -40.05 second
B=1, location data complies with NMEA 0183 GPRMC protocol.
For example, $GPRMC,161509.000,A,2232.5485,N,11404.6887,E,0.3,153.7,290709,,*03
C=0, turn off the function to automatically hang up an incoming call.
C=1, turn on the function to automatically hang up an incoming call after 4 - 5 rings.
D=0, turn off the function of sending an SMS when the tracker is turned on.
D=1, turn on the function of sending an SMS to the authorized phone number for SOS when the tracker is turned on.
E, defaulted as 1 (the tracker shuts down automatically when the power voltage is lower than 3V).
F=0, turn off the SMS alarm when the tracker enters GPS blind area.
F=1, turn on the SMS alarm when the tracker enters GPS blind area. SMS is to be sent to the authorized phone number for
SOS.
G=0, all LEDs work normally.
G=1, all LEDs stop flashing when the tracker is working.
H, reserved and defaulted as ‘0’
I=0, turn off the function of sending SMS alarm when the extra power of the tracker is cut.
I=1, turn on the function of sending an SMS alarm to the authorized phone number for SOS when the extra power of the
tracker is cut.
J, reserved and defaulted as ‘1’
### is the ending character
(ABCDEFGHIJ defaulted as 1000100001)
Presetting by SMS for GPRS tracking (Ensure that your SIM card supports GPRS connection prior to setting)
Set Tracker’s GPRS ID
W******,010,ID
W000000,010,00001
Remarks: to set a digital GPRS ID for the tracker.
GPRS ID must not over 14 digits.
Set APN
W******,011,APN,Username,
W000000,011,CMNET,Cerevo,6688
Password
W000000,011,CMNET
Remarks: If no APN username and password are required, just input APN only;
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APN defaulted as ‘CMNET’;
APN + username + password should not over 39 characters.
Set IP and Port
W******,012,IP,Port
W000000,012, 220.121.7.89,8500
W000000,012,www.Cerevo.net,8500
Remarks: IP is your server’s IP or the domain name. Port: [1,65534]
Set DNS Server IP
W******,009,DNS Server IP
W000000,009,220.23.4.90
Remarks: In case the domain name you set by the last command (W******,012,IP,Port) doesn’t work, which means your
server IP is not properly set. You can first use this command to set DNS Server IP (please check with your DNS server provider
for the DNS Server IP) and then redo the command W******,012,IP,Port.
Enable GPRS Tracking
W******,013,X
W000000,013,1
Remarks:
X=0, to turn off GPRS tracking (default);
X=1, to enable GPRS tracking via TCP
X=2, to enable GPRS tracking via UDP
Set GPRS Interval
W******,014,XXXXX
W000000,014,00060
Remarks: to set time interval for sending GPRS packets.
XXXXX should be in five digits and in unit of 10 seconds.
XXXXX=00000, to turn off this function;
XXXXX=00001~65535, time interval for sending GPRS packet and in unit of 10 seconds.
In this example, the tracker will send every 600 seconds (10 minutes).
Veer Report
W******,036,degree
W000000,036,90
Remarks: when the heading direction of the tracker changes over the preset degree, a message with location data will be sent
back to the server by GPRS.
degree=0, to turn off this function.
degree=[1,360], to set degree of direction change.
For more information regarding GPRS tracking please refer to <GPRS Communication Protocol>
Output Control (Unlimited)
W******,020,1,F
W000000,020,1,1
Remarks:
F =0, to close the output (open drain)
=1, to open the output (low voltage)
For example, if you have connected Output1 with a relay, you can send W000000,020,1,1 to stop the engine.
Output Control (Limited)
W******,120,F
W000000,120,1
W******,220,F
W000000,220,1
Remarks: This function is achievable only when the speed is below 10km/h (command 120) or 20km/h (command 220) and
meantime GPS is available.
F=0, to close the output (open drain)
=1, to open the output (low voltage)
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Sleep Mode
W******,021,XX###
W000000,021,02###
Remarks: this setting is for power saving.
XX=00 turn off sleep mode
XX=01 Level I
XX=02 Level II
### is the ending character
Here is some explanation for the sleep mode. First, assume that the GPS acquisition time is ONE minute.
[1] In Level I
The GPS module will be working for the first three minutes (i.e. 3 times of acquisition time) and then shut down for ONE minute
(i.e. equivalent to acquisition time), and then work again for another three minutes……
[2] In Level II
The GPS module will be working for the first two minutes (i.e. twice of acquisition time) and then shut down for ONE minute (i.e.
equivalent to acquisition time), and then work again for another two minutes……
Power Down
W******,026,XX
W000000,026,10
Remarks: to set power down mode when the tracker is inactive for a period of time.
In Power Down mode, GPS stops working and GSM enters sleep and stop sending out message until it is activated by message,
incoming calls or triggered by buttons.
XX=00, to turn off this function.
XX=01~99, to turn on Power Down after a specified period of being inactive. It is in unit of minute.
In this example, the tracker will enter power down mode after it is inactive for 10 minutes.
Correct Time Difference
W******,032,T
W000000,032,480 W000000,032,-120
Remarks: Default time of the tracker is GMT, you can use this comment to correct it to your local time. This command is for SMS
tracking only.
T=0, to turn off this function.
T=[1, 65535] to set time difference in minute to GMT.
For those ahead of GMT, just input the time difference in minute directly. For example, GMT+8, W000000,032,480
‘-‘is required for those behind GMT. For example, W000000,032,-120.
Set SMS Initials
W******,033,1,Char
W000000,033,1,help
Remarks: this command is to set initial characters for SOS message when the SOS button (input) is pressed.
Char is the character in SOS message and max 32 characters and defaulted as ‘SOS Alarm!’
Set Prefix (Country Code)
W******,502,*Data#
W000000,502,*+86#
Remarks: be advised caution in this setting. Normally, your country code (for example in China it is +86) will be automatically
added and displayed prior to a phone number when sending SMS. In this case, you don’t have to do this setting. If the country
code is not added, you are required to input the country code, for example, +86, to enable the tracker can send out SMS to your
mobile phone.
Data: max 10 digits
Get Version No. and Serial No.
W******,600
W000000,600
Remarks: to get the version and serial number of tracker’s firmware
Get IMEI
W******,601
W000000,601
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Remarks: to get IMEI of the tracker
Reboot GSM
W******,901###
W000000,901###
Remarks: to reboot the GSM module of the tracker
Reboot GPS
W******,902###
W000000,902###
Remarks: to reboot the GPS module of the tracker
Initialization
W******,990,099###
W000000,990,099###
Remarks: Turn on the device, press the SOS button for five times continuously and the red LED will be on, and then send (within
120 seconds) this SMS to the tracker to make all settings (except for the password) back to factory default.
### is the ending character.
Password Initialization
W888888,999,666
W888888,999,666
Remarks: In case you forget your password, turn on the tracker, press the SOS button for five times continuously and the red
LED will be on, and then send this SMS (within 120 seconds) to the tracker to make the password back to factory default
(000000).
Annex 2. Troubleshooting
Problem: Unit will not turn on
Possible Cause:
Resolution:
Wiring was not connected properly
Check and make sure wiring connection is in order.
Battery needs charging
Recharge battery
Problem: Unit will not respond to SMS
Possible Cause:
Resolution:
GSM antenna was not installed properly
Make CR-GT300VT connected to GSM network.
GSM Network is slow
Some GSM networks slow down during peak time or when they have
equipment problems.
Unit is sleeping
Cancel sleeping mode
Wrong password in your SMS or wrong SMS
Write correct password or SMS format
format
The SIM in CR-GT300VT has run out of credit
Replace or top up the SIM card
No SIM card
Insert a working SIM card. Check in phone that the SIM can send SMS
message.
SIM card has expired
Check in phone that the SIM can send SMS message. Replace SIM card if
needed.
SIM has PIN code set
Remove PIN code by inserting SIM in you phone and deleting the code.
SIM is warped or damaged
Inspect SIM, clean the contacts. If re-inserting does not help try another to
see if it will work.
Roaming not enabled
If you are in a different country your SIM account must have roaming
enabled.
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Error connecting GSM antenna
Make sure the GSM antenna is connected to the GSM interface.
Problem: SMS received starts with ‘Last…’
Possible Cause:
Resolution:
Unit does not have clear view of the sky
Move the antenna of the unit to a location where the sky is visible.
CR-GT300VT is in an inner place
Wait for the target to come out
Battery is low
Recharge the unit and the GPS will start working.
Error connecting GPS antenna
Make sure the GPS antenna is connected to the GPS interface.
Problem: Unit Fails to Connect to Server via GPRS
Possible Cause:
Resolution:
SIM card in CR-GT300VT does not support GPRS
Enable SIM card GPRS function.
function
GPRS function of CR-GT300VT is turned off
Turn on GPRS function of CR-GT300VT.
Incorrect IP address or PORT
Get the right IP address and PORT and reset to CR-GT300VT.
GSM signal is weak
Move the unit to a location with good GSM reception.
Contacts
If you encounter any problems when using our products, and cannot solve them by yourself, please contact
our technical support team by writing an E-Mail to [email protected]. We will be pleased to help you.
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