MeiTrack VT300 User guide
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MEITRACK® GPS Vehicle Tracker
User Guide
VT300
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Contents
1. Product Overview ..................................................................................................................................................................................... - 3 2. For Your Safety .......................................................................................................................................................................................... - 3 3 VT300 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.................................................................................................................................................................. - 9 7.4 Google Earth and Google Maps .................................................................................................................................................... - 9 7.5 Track by MS01/MS02.................................................................................................................................................................... - 10 7.6 Track by GPRS (Meiligao Protocol) 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. Speeding Alarm ....................................................................................................................................................................................... - 12 10. Movement/Geo-fence.......................................................................................................................................................................... - 12 10.1 Movement Alarm ....................................................................................................................................................................... - 12 10.2 Geo-fence Alarm ........................................................................................................................................................................ - 13 11. Track by Distance .................................................................................................................................................................................. - 13 12. Engine Cut ............................................................................................................................................................................................. - 14 12.1 Output Control (Immediate)...................................................................................................................................................... - 14 12.2 Output Control (Conditional) .................................................................................................................................................... - 14 13. Heading Change Report ....................................................................................................................................................................... - 15 14. Heartbeat .............................................................................................................................................................................................. - 15 15. Get IMEI ................................................................................................................................................................................................ - 15 16. Initialization .......................................................................................................................................................................................... - 15 17. Password Initialization.......................................................................................................................................................................... - 16 18. Parameter Editor .................................................................................................................................................................................. - 16 19. Copyright and Disclaimer ..................................................................................................................................................................... - 17 Annex 1. SMS Command List ..................................................................................................................................................................... - 17 Annex 2. Troubleshooting .......................................................................................................................................................................... - 22 Contacts ....................................................................................................................................................................................................... - 25 -
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1. Product Overview
VT300 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, VT300 has good sensitivity and stable performance. It can get accurate GPS fix even in
remote places.
VT300 has the following functions and features:

SMS and GPRS TCP/UDP Communication (Meiligao Protocol)

AGPS ( with GSM Base Station ID)

Track on Demand

Show Location Directly on Mobile Phone

Track by Time Interval

Track by Distance

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
Do not connect any parts of this product to other incompatible devices. When
connecting with other devices, read instructions carefully to ensure proper installation.
Qualified Accessories
Use original parts, qualified batteries and peripheral equipments to avoid damage to
VT300.
Safe Driving
Drivers should not operate this product while driving.
Qualified Service
Only qualified personnel can install or repair VT300.
Water Resistance
VT300 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 VT300
without taking precautions of security settings.
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3. VT300 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
Work time
24 hours in power-saving mode and 10 hours in normal mode
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
-159Db
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 VT300.
4.1 Hardware and Accessories
VT300 is supplied in a box which includes:
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GPS Antenna
GSM Antenna
Screws
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Wires with SOS Button
CD
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 VT300.
Note: The switch is on off side as factory default. When the wires are plugged in, VT300 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
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phone number.
Mini USB
Used for firmware update and configuration on PC. (USB-to-Serial Adaptor 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 VT300. Check to make sure all parts are included in the packaging box.
4.4.1 Ensure that your VT300 has a working SIM card installed.
- Check that the SIM card has not run out of credit (test the SIM card in a phone to make sure it can
send and receive SMS).
- Check that the SIM card 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 VT300, please make sure the SIM installed supports displaying caller ID.
Before inserting SIM card, cut off the power for VT300.
Install SIM Card
- Unscrew and remove the front cover of VT300.
- Insert the SIM card by sliding it into the card slot with the chip module facing the connectors on PCB.
- Replace the front cover and screw it up.
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4.4.2 Antenna Connection
Connect the GSM Antenna to VT300.
Connect the GPS Antenna to VT300.
- 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. (It is
recommended to place this device under the windshield.)
4.4.3 Find a suitable place inside the car for installing VT300. Wiring connections must be firm and
reliable. The joints should be wrapped tightly with insulating tape. The unused electrical wire should be
properly insulated.
Check to make sure all wirings have been connected correctly. 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 VT300 using a mobile phone to check if the call can go through. The
VT300 should reply 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 to 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=[-32768,32767] to set time difference in minute to GMT.
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For those ahead of GMT, input the time difference in minutes directly.
For example, GMT+8, W000000,032,480 (8 hours is 480 minutes).
‘-‘is required for those behind GMT. For example, W000000,032,-120 (2 hours or 120 minutes behind GMT).
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: To get the current location of the tracker, send this command as an SMS or make a telephone call directly to the tracker.
After doing so, the device will report its longitude and latitude by SMS with the 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 link to Google Maps
Command: W******,100
Description: Send this command to the tracker and you will receive an SMS with an http link. Click on the link and the location will
be shown directly on your mobile phone using Google maps. 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 PDAs 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 the following format:
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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
Description: Set an interval for the tracker to continuously report its location by SMS
Note:
1. XXX is the interval in minutes;
2. 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 Maps
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).
Input the latitude and longitude that you received 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:
You can also use local map software on PDAs or car navigation device to input the coordinates.
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7.5 Track by MS01/MS02
You can also see a physical location on a map with our GPS Tracking Software MS01 or MS02.
This
software
is
available
for
purchase
and
can
be
used
for
tracking
after
proper
Please refer to MS01/MS02 User Guide for more information.
7.6 Track by GPRS (Meiligao Protocol) 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 be 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,Meiligao,6688
W000000,011,CMNET
7.6.3 Set IP and Port
Command: W******,012,IP,Port
Description: Set the IP and Port of tracker for GPRS communication.
Note:
1. IP is your server’s IP or the domain name.
2. Port: [1,65534].
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Example:
W000000,012, 220.121.7.89,8500
W000000,012,www.meiligao.net,8500
7.6.4 Set DNS Server IP (optional)
Command: W******,009,DNS Server IP
Description: If the domain name you set by the last command (W******,012,IP, Port) doesn’t work, your servers 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.
Example: W000000,014,00060
In this example, 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 VT300 supports GpsGate Software.
Please contact our company or GpsGate for more information for settings.
8. Authorization
Command: W******,003,F,1,T
Description: Authorize phone numbers for the SOS/inputs, receiving location reports, SMS alarms or phone calls
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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.
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 completed, and the SOS is pressed, an SOS SMS - “SOS Alarm” will be sent to the preauthorized phone
number. Then a message with longitude and latitude will follow.
(Note: An SOS button is already connected to VT300 in standard packing)
9. Speeding Alarm
Command: W******,005,XX
Description: Turn 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.
10. Movement/Geo-fence
10.1 Movement Alarm
Command: W******,006,X
Description: When the tracker moves out of a preset circle scope, it will send an SMS alarm to the authorized phone number for
SOS.
Note:
1. X is the preset radii to the tracker’s original place.
=0, to turn off this function.
=1, 30m
=2, 50m
=3, 100m
=4, 200m
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=7, 1000m
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=8, 2000m
2. Radii: [1, 4294967295] meter(s), suggest to be set above 100 meters.
3. GPRS command is 0x12.
Example: W000000,006,1
When tracker moves out of this circle scope, it will send out an SMS alarm.
10.2 Geo-fence Alarm
Command: W******,302,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.
1. X is the parameters which includes: latitude, longitude, radii, in, out.
2. Latitude and longitude should be in ASCII format as follows:
Latitude is ddd.dddddd, ‘0’ is needed to be stuffed if no value available. ‘-’ should be added for south.
Longitude is dd.dddddd, ‘0’ is needed to be stuffed if no value available. ‘-’ should be added for west.
3. Radii: [1, 4294967295] meter(s), suggested to be set above 100 meters, if set above 8, it is corresponding radii.
4. If In and Out are 0, corresponding function is invalid. If In and Out are 1, valid.
5. Reply as Geo-Fence Alarm.
6. GPRS exiting command is 0x12, entering command is 0x13.
7. Send W******, 302 to turn off Geo-fence function.
Example:
W000000,302,22.000000,-114.123456,3000,1,1
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.
11. Track by Distance
Command: W******,303,X
Description: Send this command to set distance interval
Note:
1.
X= [1, 4294967295], suggested to be set above 300 meters;
2.
X=0, turn off.
Example: W000000,303,1000
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12. Engine Cut
Relay Connection: Connect a relay as the below picture shows:
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, and the engine is then cut.
12.1 Output Control (Immediate)
Command: W******,020,1,F
Description: Send this command to control the Output of VT300
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 (Conditional)
Command: W******,120,F or W******,220,F
Description: Send this command to control the Output of VT300. This command is only workable when the speed is below
10km/h(command 120) or 20km/h(command 220) and GPS is available.
Note:
F=0, to close the output (open drain);
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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 VT300. When its speed reaches at 10km/h or 20km/h, it will stop the
engine.
13. Heading Change 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 enhances the accuracy when the tracker makes 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. Heartbeat
Command: W******,015,data
Description: Set an interval for heartbeat.
Note:
data is the interval in unit of minutes.
data=0, to turn off this function;
data=1~65535, set interval for heartbeat.
Example:
W000000,015,10
In this example, the tracker will send heartbeat every 10 minutes.
15. Get IMEI
Command: W******,601
Description: Get IMEI of the tracker. IMEI is 15 digits
Example: W000000,601
16. Initialization
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Command: W******,990,099###
Description: This sets all settings, except for the password, back to factory default.
Note: Send SMS “Default?” to the device. Within 120 seconds, send this SMS command to the tracker.
### is the ending character and is required in the text message.
Example: W000000,990,099###
17. Password Initialization
Command: W888888,999,666
Description: This resets the password back to factory default and can be used in case you forget your password.
Note: Send SMS “Default?” to the device, and then, within 120 seconds, send this SMS command to the tracker to set the password
back to factory default (000000).
If you have set an authorized telephone number, when the password has been successfully preset, the telephone will receive
W888888,999,666
Example: W888888,999,666
For more details regarding SMS commands, please go to Annex 1 Command List.
18. Parameter Editor
The tracker can also be configured by computer using the Parameter Editor. This method is much easier and user friendly.
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Please refer to Meitrack Parameter Editor for more information.
19. Copyright and Disclaimer
© Meitrack Group 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 written consent of Meiligao, or transmitted in any form either electronically or
mechanically, including photocopying and recording.
In no event shall Meiligao 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.
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Description
SMS Command
Example
Track on Demand
W******,000
W000000,000
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Remarks: To get the current location of the tracker, send this command as an SMS or make a telephone call directly to the tracker. After doing so, the
device
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 you will receive an SMS with a http link. Click on the link then the location will be shown directly on your
mobile phone using Google Maps. 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 PDAs 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.
Track by Interval
W******,002,XXX
W000000,002,030
Remarks: To set interval for automatic timed report.
XXX is the interval in minutes. If XXX=000, turn off tracking by time.
In this example, the tracker will send location data back to your mobile phone every 30 minutes.
Authorization
W******,003,F,1,T
W000000,003,1,1,88888888
Remarks: 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.
Speeding Alarm
W******,005,XX
W000000,005,08
Remarks: When the tracker speeds higher than the pre-set 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.
Movement Alarm
W******,006,X
W000000,006,6
Remarks: When the tracker moves out of a preset circle scope, it will send an SMS alarm to the authorized phone number for SOS.
X is the preset radii to the tracker’s original place
=0, to turn off this function
=1, 30m
=2, 50m
=3, 100m
=4, 200m
=5, 300m
=6, 500m
=7, 1000m
=8, 2000m
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Geo-fence Alarm
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W******,302,X
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W000000,302,22.000000,-114.123456,3000,1,1
Remarks: Turn 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. X is the parameters which includes: latitude, longitude, radii, in, out.
2. Latitude and longitude should be in ASCII format as follows:
Latitude is ddd.dddddd, ‘0’ is needed to be stuffed if no value available. ‘-’ should be added for south.
Longitude is dd.dddddd, ‘0’ is needed to be stuffed if no value available. ‘-’ should be added for west.
3. Radii: [1, 4294967295] meter(s), suggest to be set above 100 meters, if set above 8, it is corresponding radii.
4. If In and Out are 0, corresponding function is invalid, if are 1, valid.
5. Reply as Geo-Fence Alarm.
6. GPRS exiting command is 0x12, entering command is 0x13.
7. Send W******, 302 to turn off Geo-fence function.
Track by Distance
W******,303,X
W000000,303,1000
Remarks: Send this command to set distance interval
Note:
1.
X= [1, 4294967295], suggest to be set above 300 meters;
2.
X=0, turn off.
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, Latitude = 22 32 36.63N Longitude = 114 04 57.37E, Speed = 2.6854Km/h, 2008-12-24,01:50
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 vehicle tracker is cut;
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I=1, turn on the function of sending an SMS alarm to the authorized phone number for SOS when the extra power of the vehicle tracker is cut.
J, 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,Passwo
W000000,011,CMNET,Meiligao,6688
rd
W000000,011,CMNET
Remarks: If no APN username and password are required, just input APN only.
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.meiligao.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: If the domain name you set by the last command (W******,012,IP, Port) doesn’t work, 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
W******,014,XXXXX
W000000,014,00060
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
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).
Set Heartbeat Interval
W******,015,data
W000000,015,10
Remarks: to set interval for heartbeat.
Data: in unit of minutes
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data=0, to turn off this function;
data=1~65535, set interval for heartbeat.
In this example, the tracker will send heartbeat every 10 minutes.
Set Sensitivity of Tremble Sensor
W******,035,XX
W000000,035,30
Remarks: Send this command to set sensitivity of tremble sensor.
Note:
1.
XX=[1,255], it will be more sensitive if XX is smaller
2.
Default value is 30.
Example: W000000,035,30
Heading Change 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 (Immediate)
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 (Conditional)
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)
Sleep Mode
W******,021,X
W000000,021,2
Remarks: this setting is for power saving.
X=0 turn off sleep mode
X=1 Level I
X=2 Level II
X=3 Level III
Here is some explanation for the sleep mode.
GPS module will be closed for 64 seconds * X ( X=1, 2, 3), if it gets continuous GPS fixed for 32 times or Non-GPS fixed for 128 times. After that, GPS
module will periodically work and close.
Power Down
W******,026,XX
W000000,026,10
Remarks: Put the tracker in power down mode when the tracker is inactive (stationary) for a period of time.
In Power Down mode, GPS stops working and GSM enters sleep mode and stop sending out messages. The device remains in this mode until it is activated
by message, incoming calls, or input changes.
XX=00, to turn off this function;
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XX=01~99, to turn on Power Down after a specified period of being inactive. It is in unit of minutes.
In this example, the tracker will enter power down mode after it is inactive for 10 minutes.
Time Zone
W******,032,T
W000000,032,480 W000000,032,-120
Remarks: Default time of the tracker is GMT, you can use this command to correct it to your local time. This command is for SMS tracking only.
T=0, to turn off this function;
T=[-32768,32767] to set time difference in minute to GMT.
For those ahead of GMT, just input the time difference in minutes directly. For example, GMT+8, W000000,032,480 ( 8 hours is 480 minutes).
‘-‘is required for those behind GMT. For example, W000000,032,-120.
Set SMS Header
W******,033,P,Char
W000000,033,1,help
Remarks: this command is to set initial characters for SOS message when SOS/IN1, Button B/IN2, Button C/IN3 is pressed.
P=1, SOS button/Input1
P=2, B button/Input2
P=3, C button/Input3
Char is the character in SOS message and max 32 characters and defaulted as:
1 SOS Alarm!
Get Version No. and Serial No.
2 Cry For Help!
W******,600
3 Call The Police!
W000000,600
Remarks: to get the version and serial number of tracker’s firmware
Get IMEI
W******,601
W000000,601
W******,901###
W000000,901###
Remarks: to get IMEI of the tracker
Reboot GSM
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: Send SMS “Default?” to the device, within 120 seconds, send this SMS command 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, Send SMS “Default?” to the device, within 120 seconds, send this SMS command to the tracker to make the
password back to factory default (000000).
Annex 2. Troubleshooting
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Problem: Unit will not turn on when pushing the power switch to On side
Possible Cause:
Resolution:
Power switch was not pushed properly
Make sure the power button is pushed to On side
Battery needs charging
Recharge battery for 3 hours
Problem: Unit will not reply with SMS
Possible Cause:
Resolution:
Green LED is flashing (1 second on and 2 seconds off)
Make sure device is 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 or in power down mode
Cancel sleeping mode or power down
Wrong password in your SMS or wrong SMS format
Write correct password or SMS format
The SIM has run out of credit
Replace or top up the SIM card
Problem: Green LED is Flashing (1 second on and 2 seconds off)
Possible Cause:
Resolution:
No GSM signal
Check with a mobile phone to see if there is a signal in the area or try to call the unit to see
if you hear a ring tone
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 your 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
Battery is low
Recharge the unit and the GSM will start working
Problem: Blue LED is Flashing (1 second on and 2 seconds off) or the SMS received starts with ‘Last…’
Possible Cause:
Resolution:
Unit does not have clear view of the sky
Move the unit to a location where the sky is visible. Tall buildings, trees, and heavy rain can
cause problems with the GPS reception.
Bad GPS reception
Place the front side of device towards sky
Battery is low
Recharge the unit and the GPS will start working
Problem: Unit Fails to Connect to Server via GPRS
Possible Cause:
Resolution:
SIM card does not support GPRS function
Enable SIM card GPRS function
GPRS function is turned off
Turn on GPRS function
Incorrect IP address or PORT
Get the right IP address and PORT and reset
GSM signal is weak
Move the unit to a location with good GSM reception
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 sure device is connected to GSM network
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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 format
Write correct password or SMS format
The SIM 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 your 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
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
VT300 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 VT300 does not support GPRS function
Enable SIM card GPRS function
GPRS function of VT300 is turned off
Turn on GPRS function of VT300
Incorrect IP address or PORT
Get the right IP address and PORT and reset to VT300
GSM signal is weak
Move the unit to a location with good GSM reception
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 VT300 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 format
Write correct password or SMS format
The SIM in VT300 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
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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
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
VT300 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 VT300 does not support GPRS function
Enable SIM card GPRS function
GPRS function of VT300 is turned off
Turn on GPRS function of VT300
Incorrect IP address or PORT
Get the right IP address and PORT and reset to VT300
GSM signal is weak
Move the unit to a location with good GSM reception
Contacts
Please do not hesitate to email us at [email protected] if you have any questions.
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