MEITRACK T622 GPRS Protocol
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D15
Deleting Authorized RFID Cards/iButton Keys in Batches
D16
Checking the Checksum of the Authorized RFID/iButton Database
D71
Setting GPS Data Filtering
D72
Setting Output Triggering
D73
Allocating GPRS Cache and GPS LOG Storage Space
D74
Sending the Destination to the Garmin Navigator
D75
Sending Messages from the Garmin Navigator
D76
Sending Messages to the Garmin Navigator
D77
Obtaining Garmin Navigator Info
D78
Setting Harsh Acceleration and Braking Parameters
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
3
Command Details
3.1
Real-Time Location Query (GPRS) – 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.
Applicable Model
T622
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 (GPRS) – 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, a heartbeat packet will be sent at the specified interval.