MeiTrack MVT340 User manual

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
MEITRACK MVT100/MVT340/MVT380
GPRS Protocol
Applicable Model: MVT100/MVT340/MVT380

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 2 -
Change History
File Name
MEITRACK MVT100/MVT340/MVT380
GPRS Protocol
Created By
Kyle Lv
Project
MVT100/MVT340/MVT380
Creation Date
Update Date
2017-01-20
Subproject
GPRS Protocol
Total Pages
23
Version
V1.0
Confidential
Internal Documentation

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 3 -
Contents
1 Command Format..........................................................................................................................................................................- 5 -
1.1 GPRS Command Format .....................................................................................................................................................- 5 -
1.2 Tracker Command Format ..................................................................................................................................................- 5 -
1.3 Event Code..........................................................................................................................................................................- 8 -
2 Command List................................................................................................................................................................................- 9 -
3 Command Details ........................................................................................................................................................................- 10 -
3.1 Real-Time Location Query –A10 ......................................................................................................................................- 10 -
3.2 Setting a Heartbeat Packet Reporting Interval –A11........................................................................................................- 10 -
3.3 Tracking by Time Interval –A12........................................................................................................................................- 10 -
3.4 Setting the Cornering Report Function –A13 ...................................................................................................................- 11 -
3.5 Tracking by Distance –A14 ...............................................................................................................................................- 11 -
3.6 Setting the Parking Scheduled Tracking Function –A15 ...................................................................................................- 12 -
3.7 Enabling the Parking Scheduled Tracking Function –A16.................................................................................................- 12 -
3.8 Setting GPRS Parameters –A21 ........................................................................................................................................- 12 -
3.9 Setting the DNS Server IP Address –A22..........................................................................................................................- 13 -
3.10 Setting the Standby GPRS Server –A23 ..........................................................................................................................- 13 -
3.11 Reading All Authorized Phone Numbers –A70...............................................................................................................- 14 -
3.12 Setting Authorized Phone Numbers –A71 .....................................................................................................................- 14 -
3.13 Setting Listen-in Phone Numbers –A72 .........................................................................................................................- 14 -
3.14 Setting the Smart Sleep Mode –A73..............................................................................................................................- 15 -
3.15 Automatic Event Report –AAA .......................................................................................................................................- 15 -
3.16 Deleting a GPRS Event in the Buffer –AFF ......................................................................................................................- 15 -
3.17 Setting a Geo-Fence –B05..............................................................................................................................................- 16 -
3.18 Deleting a Geo-Fence –B06............................................................................................................................................- 16 -
3.19 Setting the Speeding Alarm Function –B07 ...................................................................................................................- 17 -
3.20 Setting the Towing Alarm Function –B08 .......................................................................................................................- 17 -
3.21 Setting the Anti-Theft Function –B21 ............................................................................................................................- 17 -
3.22 Turning off the LED Indicator –B31 ................................................................................................................................- 18 -
3.23 Setting a Log Interval –B34 ............................................................................................................................................- 18 -
3.24 Setting the SMS Time Zone –B35 ...................................................................................................................................- 18 -
3.25 Setting the GPRS Time Zone –B36 .................................................................................................................................- 19 -
3.26 Checking the Engine First to Determine Tracker Running Status –B60 .........................................................................- 19 -
3.27 Setting SMS Event Characters –B91 ...............................................................................................................................- 19 -
3.28 Setting Event Authorization –B99 ..................................................................................................................................- 20 -
3.29 Controlling Output Status –C01 .....................................................................................................................................- 20 -
3.30 Notifying the Tracker of Sending an SMS –C02 ..............................................................................................................- 21 -
3.31 Setting a GPRS Event Transmission Mode –C03.............................................................................................................- 21 -
3.32 Reading Device's Firmware Version and SN –E91 ..........................................................................................................- 22 -
3.33 Restarting the GSM Module –F01..................................................................................................................................- 22 -
3.34 Restarting the GPS Module –F02 ...................................................................................................................................- 22 -
3.35 Setting the Mileage and Run Time –F08 ........................................................................................................................- 22 -
3.36 Deleting SMS/GPRS Cache Data –F09 ............................................................................................................................- 23 -

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 4 -
3.37 Restoring Initial Settings –F11........................................................................................................................................- 23 -

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 5 -
1Command Format
1.1 GPRS Command Format
GPRS command sent from the server to the tracker:
@@<Data identifier><Data length>,<IMEI>,<Command type>,<Command><*Checksum>\r\n
GPRS command sent from the tracker to the server:
$$<Data identifier><Data length>,<IMEI>,<Command type>,<Command><*Checksum>\r\n
1.2 Tracker Command Format
$$<Data identifier><Data length>,<IMEI>,<Command type>,<Event code>,<(-)Latitude>,<(-)Longitude>,<Date and
time>,<Positioning status>,<Number of satellites>,<GSM signal strength>,<Speed>,<Direction>,<Horizontal dilution of precision
(HDOP)>,<Altitude>,<Mileage>,<Run time>,<Base station info>,<I/O port status>,<Analog input value>,<Geo-fence
number><*Checksum>\r\n
Note:
A comma (,) is used to separate data characters. The character type is the American Standard Code for Information
Interchange (ASCII). (Hexadecimal is represented as 0x2C.)
Symbols "<" and ">" will not be present in actual data, only for documentation purpose only.
All multi-byte data complies with the following rule: High bytes are prior to low bytes.
The size of a GPRS data packet is about 160 bytes.
Descriptions about GPRS packets from the tracker are as follows:
Parameter
Description
Example
@@
Indicates the GPRS data packet header sent from the server to the
tracker. The header type is ASCII. (Hexadecimal is represented as
0x40.)
@@
$$
Indicates the GPRS data packet header sent from the tracker to the
server. The header type is ASCII. (Hexadecimal is represented as
0x24.)
$$
Data identifier
Contains 1 byte. The type is the ASCII, and its value ranges from
0x41 to 0x7A.
Q
Data length
Indicates the length of characters from the first comma (,) to \r\n.
Decimal.
Example: $$<Data identifier><Data length>,<IMEI>,<Command
type>,<Command><* Checksum>\r\n
25
IMEI
Indicates the tracker IMEI number. The number type is ASCII. It has
15 digits generally.
353358017784062
Command type
Hexadecimal
For details, see chapter 2 and chapter 3.
AAA
Event code
Decimal
For details, see section 1.3 "Event Code."
1
Latitude
(-)yy.dddddd
Unit: degree
Decimal
When a minus (-) exists, the tracker is in the southern hemisphere.
22.756325 (indicates
22.756325°N)
-23.256438 (indicates

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 6 -
When no minus (-) exists, the tracker is in the northern hemisphere.
yy indicates the degree.
dddddd indicates the decimal part.
23.256438°S)
Longitude
(-)xxx.dddddd
Unit: degree
Decimal
When a minus (-) exists, the tracker is in the western hemisphere.
When no minus (-) exists, the tracker is in the eastern hemisphere.
xxx indicates the degree.
dddddd indicates the decimal part.
114.752146 (indicates
114.752146°E)
-114.821453 (indicates
114.821453°W)
Date and time
yymmddHHMMSS
yy indicates year.
mm indicates month.
dd indicates day.
HH indicates hour.
MM indicates minute.
SS indicates second.
Decimal
091221102631
Indicates 21 December
2009, 10:26:31 am.
Positioning status
Indicates the GPS signal status.
A= Valid
V= Invalid
A
The GPS is valid.
Number of satellites
Indicates the number of received GPS satellites.
Decimal
5
Five GPS satellites are
received.
GSM signal strength
Value: 0–31
Decimal
12
The signal strength is 12.
Speed
Unit: km/h
Decimal
58
The speed is 58 km/h.
Direction
Indicates the driving direction. The unit is degree. When the value is
0, the direction is north. The value ranges from 0 to 359.
Decimal
45: indicates that the
location is at northeast.
90: indicates that the
location is at east.
HDOP
The value ranges from 0.5 to 99.9. The smaller the value is, the
more the accuracy is.
Decimal
When the accuracy value is 0, the signal is invalid.
0.5–1: Perfect
2–3: Wonderful
4–6: Good
7–8: Medium
9–20: Below average
21–99.9: Poor
5
The HDOP is 5.
Altitude
Unit: meter
Decimal
118
Mileage
Unit: meter
564870

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 7 -
Decimal
Indicates the total mileage. The maximum value is 4294967295. If
the value exceeds the maximum value, it will be automatically
cleared.
Run time
Unit: second
Decimal
Indicates the total time. The maximum value is 4294967295. If the
value exceeds the maximum value, it will be automatically cleared.
2546321
Base station info
The base station information includes:
MCC|MNC|LAC|CI
The MCC and MNC are decimal, while the LAC and CI are
hexadecimal.
Note: Base station information in an SMS is empty.
460|0|E166|A08B
I/O port status
Hexadecimal
Status values of eight input ports and eight output ports:
Bit0 to Bit7 corresponds to status of output ports 1 to 8.
Bit8 to Bit15 corresponds to status of input ports 1 to 8.
0421 (hexadecimal) =
0000 0100 0010 0001
Analog input value
Separated by "|".
Hexadecimal
AD1|AD2|AD3|Battery analog|External power analog
Note: Analog input values in an SMS report are empty.
Voltage formula of analog AD (AD1, AD2, and AD3):
MVT340/MVT380: (AD x 6)/1024
MVT100: (AD x 3.3 x 2)/4096
Voltage formula of battery analog (AD4):
MVT340/MVT380: (AD4 x 3 x 2)/1024
MVT100: (AD4 x 3.3 x 2)/4096
Voltage formula of external power supply (AD5):
MVT340/MVT380: (AD5 x 3 x 16)/1024
MVT100: (AD5 x 3.3 x 16)/4096
123|456|235|1456|222
(Hexadecimal)
Geo-fence number
32-bit unsigned
Only available by GPRS event code 20 or 21.
02 00 00 00 (indicates
geo-fence 2)
*
Separates commands from checksums.
1 byte and ASCII (Hexadecimal is represented as 0x2A)
*
Checksum
2 bytes. The parameter indicates the sum of all data (excluding the
checksum and ending mark). It is a hexadecimal character.
Example: $$<Data identifier><Data length>,<IMEI>,<Command
type>,<Command><*Checksum>\r\n
BE
\r\n
2 bytes. The parameter is an ending character. The type is ASCII.
(Hexadecimal value: 0x0d 0x0a)
\r\n

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 8 -
1.3 Event Code
Event Code
Event
Default SMS Header (At Most 16 Bytes)
1
SOS Pressed
SOS
2
Input 2 Active
Ignition On: MVT100&MVT340
Door Open: MVT380
3
Input 3 Active
In3 Active
4
Input 4 Active
Ignition On: MVT380
5
Input 5 Active
In5 Active
9
Input 1 Inactive
In1 Inactive
10
Input 2 Inactive
Ignition Off: MVT100&MVT340
Door Close: MVT380
11
Input 3 Inactive
In3 Inactive
12
Input 4 Inactive
Ignition Off: MVT380
13
Input 5 Inactive
In5 Inactive
17
Low Battery
Low Battery
18
Low External Battery
Low Ext-Battery
19
Speeding
Speeding
20
Enter Geo-fence
Enter Fence N (N means the number of the fence)
21
Exit Geo-fence
Exit Fence N (N means the number of the fence)
22
External Battery On
Ext-Battery On
23
External Battery Cut
Ext-Battery Cut
24
GPS Signal Lost
GPS Signal Lost
25
GPS Signal Recovery
GPS Recovery
26
Enter Sleep
Enter Sleep
27
Exit Sleep
Exit Sleep
28
GPS Antenna Cut
GPS Antenna Cut
29
Device Reboot
Power On
31
Heartbeat
/
32
Cornering
Cornering
33
Track By Distance
Distance
34
Reply Current (Passive)
Now
35
Track By Time Interval
Interval
36
Tow
Tow
65
Press Input 1 (SOS) to Call
/
66
Press Input 2 to Call
/
67
Press Input 3 to Call
/
68
Press Input 4 to Call
/
69
Press Input 5 to Call
/
70
Reject Incoming Call
/
71
Get Location by Call
/
72
Auto Answer Incoming Call
/

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
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73
Listen-in (Voice Monitoring)
/
2Command List
Command
Command Description
A10
Real-Time Location Query
A11
Setting a Heartbeat Packet Reporting Interval
A12
Tracking by Time Interval
A13
Setting the Cornering Report Function
A14
Tracking by Distance
A15
Setting the Parking Scheduled Tracking Function
A16
Enabling the Parking Scheduled Tracking Function
A21
Setting GPRS Parameters
A22
Setting the DNS Server IP Address
A23
Setting the Standby GPRS Server
A70
Reading All Authorized Phone Numbers
A71
Setting Authorized Phone Numbers
A72
Setting Listen-in Phone Numbers
A73
Setting the Smart Sleep Mode
AAA
Automatic Event Report
AFF
Deleting a GPRS Event in the Buffer
B05
Setting a Geo-Fence
B06
Deleting a Geo-Fence
B07
Setting the Speeding Alarm Function
B08
Setting the Towing Alarm Function
B21
Setting the Anti-Theft Function
B31
Turning off the LED Indicator
B34
Setting a Log Interval
B35
Setting the SMS Time Zone
B36
Setting the GPRS Time Zone
B60
Checking the Engine First to Determine Tracker Running Status
B91
Setting SMS Event Characters
B99
Setting Event Authorization
C01
Output Control
C02
Notifying the Tracker of Sending an SMS
C03
Setting a GPRS Event Transmission Mode
E91
Reading Device's Firmware Version and SN
F01
Restarting the GSM Module
F02
Restarting the GPS Module
F08
Setting the Mileage and Run Time
F09
Deleting SMS/GPRS Cache Data
F11
Restoring Initial Settings

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
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3Command Details
3.1 Real-Time Location Query –A10
GPRS Sending
A10
GPRS Reply
AAA,34,(-)Latitude,(-)Longitude,Date and time,Positioning status,Number of
satellites,GSM signal strength,Speed,Direction,HDOP,Altitude,Mileage,Run time,Base
station info,I/O port status,Analog input value
Description
34: indicates the GPRS command event code.
Example
GPRS Sending
@@Q25,353358017784062,A10*6A\r\n
GPRS Reply
$$Q128,353358017784062,AAA,34,22.543176,114.078448,100313093738,A,5,22,2,205
,5,-14,0,60,0|0|10133|4110,0000,149|153|173|2707|914,*91\r\n
3.2 Setting a Heartbeat Packet Reporting Interval –A11
GPRS Sending
A11,Interval
GPRS Reply
A11,OK
Description
The heartbeat packet function is used to keep the Transmission Control Protocol (TCP)
connection open when the interval of scheduled GPRS reporting is long.
Interval = 0: function disabled (default).
Interval = [1…65535]: function enabled. Unit: minute.
The heartbeat function is available only in conjunction with deep sleep mode. When the
device enters deep sleep mode, heartbeat reports will be sent at the specified interval.
A heartbeat report is to confirm the device is online, but positioning data is invalid.
Example
GPRS Sending
@@S28,353358017784062,A11,10*FD\r\n
GPRS Reply
$$S28,353358017784062,A11,OK*FE\r\n
After the above command is run successfully, the tracker will send the following GPRS
heartbeat packet to the platform every 10 minutes in sleep mode:
$$a131,353358017784062,AAA,31,22.913458,114.083183,080229123628,V,9,23,21,83,
1,18,1350,127,0|0|10133|4110,0000,169|181|184|2714|919,*60
3.3 Tracking by Time Interval –A12
GPRS Sending
A12,Interval
GPRS Reply
A12,OK
Description
Unit: x10 seconds
Interval = 0: function disabled.
The maximum time interval is 65535 x 10 seconds.
6 x 10 seconds are recommended.
Example
GPRS Sending
@@V27,353358017784062,A12,6*D5\r\n

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GPRS Reply
$$V28,353358017784062,A12,OK*02\r\n
After the above command is run successfully, the tracker will send the following GPRS
data packet to the platform every 1 minute:
$$W129,353358017784062,AAA,35,22.540113,114.076141,100313094354,A,5,22,1,17
4,4,129,0,435,0|0|10133|4110,0000,166|224|193|2704|916,*BE\r\n
3.4 Setting the Cornering Report Function –A13
GPRS Sending
A13,Angle
GPRS Reply
A13,OK
Description
When the driving angle exceeds the preset value, the tracker will send a GPRS data
packet with location information to the server, which ensures a smoother route on the
platform.
Angle = 0: function disabled (default).
Angle = [1…359]: function enabled. Recommended value: 30.
Example
GPRS Sending
@@X29,353358017784062,A13,120*37\r\n
GPRS Reply
$$X28,353358017784062,A13,OK*05\r\n
After the above command is run successfully, if the cornering angle is greater than 120
degree, the tracker will send the following GPRS data pakcet to the server:
$$Y129,353358017784062,AAA,32,22.540968,114.077455,100313094534,A,4,22,1,166,
3,175,0,534,0|0|10133|4110,0000,141|138|159|2691|904,*D9\r\n
3.5 Tracking by Distance –A14
GPRS Sending
A14,Distance
GPRS Reply
A14,OK
Description
Distance = 0: function disabled (default).
Distance = [1…65535]: function enabled. Unit: meter.
Note: When both the GPRS time interval and distance tracking functions are enabled,
the "first reach first report" rule will be applied. For example, set the time interval to 6 x
10 seconds and distance to 200 meters. If the road is clear, a distance data packet will be
reported first; if there is heavy traffic on the road, a time interval data packet will be
reported first. Then both the time interval and distance counters will be reset to 0.
300 is recommended.
Example
GPRS Sending
@@D30,353358017784062,A14,1000*4A\r\n
GPRS Reply
$$D28,353358017784062,A14,OK*F2\r\n
After the above command is run successfully, if the driving distance reaches 1000m, the
tracker will send a data packet to the server.
$$D131,353358017784062,AAA,33,22.547271,114.047405,080310080929,A,8,21,13,89
,1,12,8525,561,0|0|10133|4110,0000,163|185|186|2712|939,*31\r\n

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3.6 Setting the Parking Scheduled Tracking Function –A15
GPRS Sending
A15,Interval
GPRS Reply
A15,OK
Description
The function is available for vehicle trackers only. With the function, the number of
GPRS messages is reduced, and thus GPRS traffic is saved.
After the A15 function is set, the A16 function is automatically enabled. For details
about engine status, see section 3.7 "Enabling the Parking Scheduled Tracking Function
–A16."
Interval unit: x10 seconds
Interval = 0: function disabled.
The maximum interval is 65535 x 10 seconds.
Note: If data needs to be sent at the specified interval after the vehicle starts or stops,
the function needs to work with the A12 function.
Example
GPRS Sending
@@E27,353358017784062,A15,6*C7\r\n
GPRS Reply
$$E28,353358017784062,A15,OK*F4\r\n
3.7 Enabling the Parking Scheduled Tracking Function –A16
GPRS Sending
A16,Status
GPRS Reply
A16,OK
Description
The first positive input port (high level) of a vehicle tracker
(MVT100/MVT340/MVT380) must connect to engine detection. Otherwise, the
function is unavailable.
When the activation status is 1, the parking scheduled tracking function is enabled.
GPRS data is sent at the following interval:
Interval of the A12 function when the engine is on
Interval of the A15 function when the engine is off
When the activation status is 0, the function is disabled. GPRS data is sent at the
following interval:
Interval of the A12 function when the engine is on
Interval of the A12 function when the engine is off
Example
GPRS Sending
@@F27,353358017784062,A16,0*C3\r\n
GPRS Reply
$$F28,353358017784062,A16,OK*F6\r\n
3.8 Setting GPRS Parameters –A21
GPRS Sending
A21,Connection mode,IP address,Port,APN,APN user name,APN password
GPRS Reply
A21,OK
Description
Connection mode = 0: function disabled.
Connection mode = 1: function enabled; use TCP/IP reporting mode.

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
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Connection mode = 2: function enabled; use UDP reporting mode.
IP address: IP address or domain name. A maximum of 32 bytes are supported.
Port: a maximum of 5 digits.
APN/APN user name/APN password: a maximum of 32 bytes respectively.
If no user name and password are required, leave them blank.
Note:
1. If you want to change a parameter (named A), the parameter before Acannot be
empty.
2. If you do not want to change the parameters after A, no comma is required when
you edit the command.
3. If you want to clear the parameters after A, commas are required when you edit
the command.
For example, if you want to change the IP address and port only, send
A21,1,192.168.1.1,8800.
Example
GPRS Sending
@@H48,353358017784062,A21,1,67.203.13.26,8800,,,*C9
GPRS Reply
$$H28,353358017784062,A21,OK*F4\r\n
3.9 Setting the DNS Server IP Address –A22
GPRS Sending
A22,DNS server IP address
GPRS Reply
A22,OK
Description
An incorrect DNS server IP address may lead to GPRS data reporting failures after the
A21 command is used. Use the A22 command to set the DNS server IP address (confirm
the IP address with your domain name provider.). Then use the A21 command to reset
the domain name.
DNS server IP address: a maximum of 16 bytes
Example
GPRS Sending
@@K38,353358017784062,A22,75.127.67.90*FD\r\n
GPRS Reply
$$K28,353358017784062,A22,OK*F8\r\n
3.10 Setting the Standby GPRS Server –A23
GPRS Sending
A23,IP address,Port
GPRS Reply
A23,OK
Description
IP address: a maximum of 32 bytes
Port: a maximum of 5 digits
When the tracker fails to send data to the active server set by command A21, data is
automatically sent to the standby server to prevent data loss.
Example
GPRS Sending
@@S43,353358017784062,A23,67.203.13.26,8800*F0
GPRS Reply
$$S28,353358017784062,A23,OK*01\r\n

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
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3.11 Reading All Authorized Phone Numbers –A70
GPRS Sending
A70
GPRS Reply
A70,SOS phone number 1,SOS phone number 2,SOS phone number 3,Listen-in phone
number 1,Listen-in phone number 2
Description
Read all authorized phone numbers.
Example
GPRS Sending
@@T25, 353358017784062,A70*93\r\n
GPRS Reply
$$T85,353358017784062,A70,13811111111,13822222222,13833333333,13844444444,
13855555555*21\r\n
3.12 Setting Authorized Phone Numbers –A71
GPRS Sending
A71,Phone number 1,Phone number 2,Phone number 3
GPRS Reply
A71,OK
Description
Phone number: A phone number has a maximum of 16 bytes. If no phone numbers are
set, leave them blank. Phone numbers are empty by default.
Phone number 1: SOS phone number. When you call the tracker by using the phone
number, you will receive SMS notification about the location, geo-fence alarm and low
power alarm.
When the SOS button is pressed, the tracker will dial phone numbers 1, 2, and 3 in
sequence. The tracker stops dialing when a phone number responds.
Example
GPRS Sending
@@U61,353358017784062,A71,13811111111,13822222222,13833333333*7D\r\n
GPRS Reply
$$U28,353358017784062,A71,OK*06\r\n
3.13 Setting Listen-in Phone Numbers –A72
GPRS Sending
A72,Listen-in phone number 1,Listen-in phone number 2
GPRS Reply
A72,OK
Description
When you call the tracker by using authorized listen-in phone numbers, the tracker will
answer the call automatically and enter the listen-in state. In this way, the tracker will
not make any sound.
A maximum of two phone numbers can be set. Each phone number has a maximum of
16 digits. If no phone numbers are set, leave them blank. Phone numbers are empty by
default.
If no phone numbers are set and commas are remained, phone numbers set before will
be deleted.
Applicable Model
MVT380
Example
GPRS Sending
@@V49,353358017784062,A72,13844444444,13855555555*55\r\n
GPRS Reply
$$V28,353358017784062,A72,OK*08\r\n

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3.14 Setting the Smart Sleep Mode –A73
GPRS Sending
A73,Sleep level
GPRS Reply
A73,OK
Description
Set the automatic smart sleep mode when the tracker is idle.
Sleep level = 0: function disabled (default).
Sleep level = 1: normal sleep. The GSM module always works, and the GPS module
occasionally enters the sleep mode. The tracker works 25% longer in the normal sleep
mode than that in the normal working mode. This mode is not recommended for short
interval tracking; this will affect the route precision.
Sleep level = 2: deep sleep. If no event is triggered after five minutes, the GPS module
will stop working and the GSM module will enter sleep mode. Once an event is
triggered, the GPS and GSM modules will be woken up. A heartbeat event will be
triggered only in the deep sleep mode, which will be uploaded every one hour by
default.
Triggering events include: SOS alarm, low internal/external battery, external power
status, GPS antenna cutoff alarm, towing alarm, high temperature, low temperature,
fuel theft, vehicle theft, ACC ON, (button) changes on any input port, vibration,
incoming call, SMS receiving, call, and heartbeat event (The GPS is disabled during
heartbeat wakeup.).
Example
GPRS Sending
@@W27,353358017784062,A73,2*D9\r\n
GPRS Reply
$$W28,353358017784062,A73,OK*0A\r\n
3.15 Automatic Event Report –AAA
GPRS Event Report
AAA,Command type,(-)Latitude,(-)Longitude,Date and time,Positioning status,Number
of satellites,GSM signal strength,Speed,Direction,HDOP,Altitude,Mileage,Run time,Base
station info,I/O port status,Analog input value
Description
When an event occurs, the tracker automatically reports the event to the server.
Example
GPRS Reply
When you press the SOS button, the tracker will send the following information to the
server:
$$G127,353358017784062,AAA,1,22.538169,114.075958,100313095653,A,3,21,4,46,5,
581,0,148,0|0|10133|4172,0000,166|204|205|2709|878,*77\r\n
3.16 Deleting a GPRS Event in the Buffer –AFF
GPRS Sending
AFF,Number of deleted GPRS events
GPRS Reply
Use the AFF command to clear the existing data when the GPRS connection mode is
UDP.
AFF,Number of remaining cache,Command type, (-)Latitude,(-)Longitude,Data and
time,Positioning status,Number of satellites,GSM signal

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 16 -
strength,Speed,Direction,HDOP,Altitude,Mileage,Run time,Base station info,I/O port
status,Analog input value
Description
Number of deleted GPRS events: hexadecimal. In general, the number is 1.
Number of remaining cache: indicates the number of events in the buffer; hexadecimal.
Example
GPRS Sending
@@h27,353358017784062,AFF,1*0B\r\n
GPRS Reply
$$h28,353358017784062,AFF,OK*3D\r\n
3.17 Setting a Geo-Fence –B05
GPRS Sending
B05,Geo-fence number,Latitude,Longitude,Radius,IN Geo-fence alarm,OUT Geo-fence
alarm
GPRS Reply
B05,OK
Description
Geo-fence number: 1–8. A maximum of eight geo-fences can be set.
Latitude: latitude of the geo-fence center; decimal; accurate to 6 digits after the decimal
point. If there are only 4 digits after the decimal point, add two digits 0. Otherwise, the
command cannot be used successfully.
Longitude: longitude of the geo-fence center; decimal; accurate to 6 digits after the
decimal point. If there are only 4 digits after the decimal point, add two digits 0.
Otherwise, the command cannot be used successfully.
Radius: The value ranges from 1 to 4294967295. The unit is meter.
IN Geo-fence alarm = 0: function disabled.
IN Geo-fence alarm = 1: function enabled.
OUT Geo-fence alarm = 0: function disabled.
OUT Geo-fence alarm = 1: function enabled.
Example
GPRS Sending
@@H57,353358017784062,B05,1,22.913191,114.079882,1000,0,1*96\r\n
GPRS Reply
$$H28,353358017784062,B05,OK*F7\r\n
When the tracker exits the geo-fence (latitude: 22.913191; longitude: 114.079882; radiu:
1000m), it will send the following GPRS data packet to the server:
$$J132,353358017784062,AAA,21,22.918046,114.089726,080229123812,A,10,22,12,32,
1,21,6667,847,0|0|10133|4110,0000,124|181|183|2714|922,*5A\r\n
3.18 Deleting a Geo-Fence –B06
GPRS Sending
B06,Geo-fence number
GPRS Reply
B06,OK
Description
Geo-fence number: 1–8. Only one geo-fence can be deleted each time by SMS or GPRS
command.
Example
GPRS Sending
@@J27,353358017784062,B06,1*C8\r\n
GPRS Reply
$$J28,353358017784062,B06,OK*FA\r\n
After the above command is run successfully, the first geo-fence will be deleted.

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 17 -
3.19 Setting the Speeding Alarm Function –B07
GPRS Sending
B07,Driving speed
GPRS Reply
B07,OK
Description
Driving speed = 0: function disabled (default).
Driving speed = [1…255]: function enabled. Unit: km/h. When the driving speed reaches
the preset value, a speeding alarm will be generated.
Example
GPRS Sending
@@P28,353358017784062,B07,60*05\r\n
GPRS Reply
$$P28,353358017784062,B07,OK*01\r\n
When the tracker driving speed reaches 60 km/h, it will send the following information to
the server:
$$k134,353358017784062,AAA,19,22.916675,114.088813,080229123718,A,10,22,61,31
,1,21,
6635,395,460|0|10133|4110,0000,164|185|181|2712|915,*F7\r\n
3.20 Setting the Towing Alarm Function –B08
GPRS Sending
B08,Vibration duration
GPRS Reply
B08,OK
Description
When the tracker's vibration duration exceeds the preset value, the tracker will send an
alarm to an authorized phone number or the server. Before using the towing alarm
function, use the A73 command to set the smart sleep level to 2and use the B08
command to set the consecutive vibration duration. Otherwise, the towing alarm
function is unavailable.
Vibration duration = 0: function disabled (default).
Vibration duration = [1…255]: function enabled. Unit: second.
Example
GPRS Sending
@@I27,353358017784062,B08,3*CB\r\n
GPRS Reply
$$I28,353358017784062,B08,OK*FB\r\n
When the tracker vibrates for more than consecutive 3 seconds, it will send the following
information to the server:
$$K133,353358017784062,AAA,36,22.916675,114.088813,080229123718,A,10,22,61,3
1,1,21,6635,395,460|0|1013|4110,0000,164|185|181|2712|915,*A2
3.21 Setting the Anti-Theft Function –B21
GPRS Sending
B21,Status
GPRS Reply
B21,OK
Description
Status = 1: function enabled (default). An alarm is generated when the first negative
input and first positive input of vehicle trackers excluding SOS are activated.
Status = 0: function disabled. No alarm is generated when the first negative input and
first positive input of vehicle trackers excluding SOS are activated.

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 18 -
The following lists inputs of trackers:
Tracker
Negative Input
Positive Input
MVT100
-
Input 2
MVT340
-
Input 2
MVT380
Input 2
Input 4
Example
GPRS Sending
@@C27,353358017784062,B21,1*BE\r\n
GPRS Reply
$$C28,353358017784062,B21,OK*F0\r\n
3.22 Turning off the LED Indicator –B31
GPRS Sending
B31,A
GPRS Reply
B31,OK
Description
When A is 00, the tracker's indicator is turned on (default). You can query the device's
running status according to the indicator status.
When A is 10, the tracker's indicator is turned off.
Example
GPRS Sending
@@J28,353358017784062,B31,10*F7\r\n
GPRS Reply
$$J28,353358017784062,B31,OK*F8\r\n
3.23 Setting a Log Interval –B34
GPRS Sending
B34,Log interval
GPRS Reply
B34,OK
Description
Set the interval for recording data to device's memory when the GPS signal is valid.
Recorded logs can only be read by GPSLog or Meitrack Manager software.
Log interval = 0: function disabled (default).
Log interval = [1…65535]: function enabled. Unit: second.
Applicable Model
MVT100/MVT380
Example
GPRS Sending
@@N28,353358017784062,B34,60*03\r\n
GPRS Reply
$$N28,353358017784062,B34,OK*FF\r\n
3.24 Setting the SMS Time Zone –B35
GPRS Sending
B35,SMS minute
GPRS Reply
B35,OK
Description
The default time zone of the tracker is GMT 0. You can run the B35 command to change
the SMS report time zone to the local time zone. The SMS report time zone is different
from the GPRS data packet time zone.
When SMS minute is 0, the time zone is GMT 0.
When SMS minute is a value ranging from -32768 to 32767, set time zones.

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 19 -
Example
GPRS Sending
@@O29,353358017784062,B35,480*3C\r\n
GPRS Reply
$$O28,353358017784062,B35,OK*01\r\n
After the above command is run successfully, the tracker SMS time zone is changed to
UTC+08:00 (China time zone).
3.25 Setting the GPRS Time Zone –B36
GPRS Sending
B36,GPRS minute
GPRS Reply
B36,OK
Description
When GPRS minute is 0, the time zone is GMT 0 (default). The MS02 can automatically
detect the user time zone, so that the GPRS time zone does not need to be changed.
Otherwise, inaccurate data occurs.
When GPRS minute is a value ranging from -32768 to 32767, set time zones.
Example
GPRS Sending
@@P29,353358017784062,B36,480*3E\r\n
GPRS Reply
$$P28,353358017784062,B36,OK*03\r\n
After the above command is run successfully, the GPRS time zone is changed to
UTC+08:00 (China time zone).
3.26 Checking the Engine First to Determine Tracker Running Status –B60
GPRS Sending
B60,X
GPRS Reply
B60,OK
Description
X = 0: function disabled (default).
X = 1: function enabled. When the device detects ACC OFF, device's longitude and
latitude will not be updated, so as to avoid static drift.
The first positive input of the tracker connects to engine detection by default.
Example
GPRS Sending
@@U27,353358017784062,B60,1*D3\r\n
GPRS Reply
$$U28,353358017784062,B60,OK*05\r\n
3.27 Setting SMS Event Characters –B91
GPRS Sending
B91,SMS event code,SMS header
GPRS Reply
B91,OK
Description
Header: a maximum of 16 bytes
Example
GPRS Sending
@@R31,353358017784062,B91,1,SOS*F0\r\n
GPRS Reply
$$R28,353358017784062,B91,OK*06\r\n
After you press the SOS button (input 1), the tracker will send an alarm SMS whose
header is SOS to a preset authorized phone number.

MEITRACK MVT100/MVT340/MVT380 GPRS Protocol
Copyright © 2017 Meitrack Group All rights reserved. - 20 -
3.28 Setting Event Authorization –B99
GPRS Sending
B99,<SMS>/<0>,<Phone number location>/<Authorized phone number>,<Operation
code>, [Event code 1]……[Event code n]
B99,<CALL>/<1>,<Phone number location>/<Authorized phone number>,<Operation
code>, [Event code 1]……[Event code n]
B99,<GPRS>/<2>,<Operation code>, [Event code 1]……[Event code n]
B99,<CAMERA>/<3>,<Operation code>, [Event code 1]……[Event code n]
B99,<BUZZER>/<4>,<Operation code>, [Event code 1]……[Event code n].
GPRS Reply
B99,<SMS>/<0>,<Phone number location>,<Authorized phone number>, [Event code
1]……[Event code n]
B99,<CALL>/<1>,<Phone number location>,<Authorized phone number>, [Event code
1]……[Event code n]
B99,<GPRS>/<2>,[Event code 1]……[Event code n]
B99,<CAMERA>/<3>,[Event code 1]……[Event code n]
B99,<BUZZER>/<4>,[Event code 1]……[Event code n]
Description
Fields SMS, CALL, CAMERA, GPRS, and BUZZER can be presented by 0–4 in decimal
string.
Operation codes GET, SET, ADD, and DEL can be presented by 0–3 in decimal string.
These characters are not case-sensitive.
Note: Ensure that an authorized phone number is set by using the A71 command or the
parameter configuration tool before the B99 command is used to set the SMS/CALL
event code. The tracker compares the authorized phone number issued by B99 with the
authorized phone number (excluding +86 characters) of the tracker. If the phone
numbers are the same, the new event code will be stored. If the phone numbers are
inconsistent, an error SMS will be sent.
Example
GPRS Sending
@@B34,863070010825791,B99,gprs,get*BC\r\n
GPRS Reply
$$B33,863070010825791,B99,1,17,18*B5\r\n
3.29 Controlling Output Status –C01
GPRS Sending
C01,Speed,ABCDE
GPRS Reply
C01,OK
Description
When the speed is 0, no speed limit exists. That is, when the tracker receives a
command, the output control takes effect immediately.
When the speed is a value ranging from 1 to 255 (unit: km/h), set the speed limit for
output control. When the driving speed is lower than the speed limit, the output control
takes effect.
A=0, close output (OUT1) - open drain
A=1, open output (OUT1) - connect to GND
A=2, remain previous status.
B=0, close output (OUT2) - open drain