TR-151SP
page 10
4. Operating the TR-151
4.1 How to set TR-151SP to immediately report its position?
Users can make TR-151SP to do SMS or/ and GPRS immediate report of its location by the
command media of SMS or GPRS. .
The command is following as:
SMS
Command Media for Immediate Report
SMS Report Media
?0,IMEI,Report_Format,Report_Phone_Number!
GPRS Report Media
?8,IMEI,Return_Phone_Number!
SMS and GPRS Report
Media
?21,IMEI,Report_Format,Report_Phone_Number!
GPRS
Command Media for Immediate Report
SMS Report Media
$0,IMEI,Report_Format,Report_Phone_Number!
GPRS Report Media
$8,IMEI!
SMS and GPRS Report
Media
$21,IMEI,Report_Phone_Number!
The table below explains the content of the command.
Format
Description
?,$
Start sign
0,8,21
Function code
IMEI
IMEI code of the TR-151SP
Report_Format
0 or 1. 0 is text format. 1 is NMEA format
Report Phone Number
The phone number for receiving the report and OK message
Return Phone Number
The phone number for receiving OK message
!
End sign
TR-151SP will send OK message to the return phone number when the command media is SMS
or to GPRS server when the command media is GPRS to confirm it has received the request.
And then it will start to get fixed the position. After getting fixed the position, it will send its
location to the report phone number or GPRS server. If TR-151SP can not get fixed the position
within the “Maximum GPS Fixing Time”, it will return the previous location.