GV200 @Track Air Interface Protocol
TRACGV200AN003 – 95 –
Serial Number 4 0000 – FFFF
Tail Character 1 $ $
<Alarm ID>: ID of the temperature alarm. Total four samples, 0-3, are supported.
<Mode>: The working mode of the temperature alarm.
0: Disable temperature alarm.
1: Report temperature alarm if the current temperature is within the temperature range
defined by <Low Temperature> and <High Temperature>.
2: Report temperature alarm if the current temperature is outside the temperature
range defined by <Low Temperature> and <High Temperature>.
3: Report temperature alarm only one time if the current temperature is within or
outside the temperature range defined by <Low Temperature> and <High
Temperature>. In this mode, <Send Interval> will be ignored.
<Sensor ID>: ID of the temperature sensor. Total four sensors are supported.
<Low Temperature>: The lower limit temperature.
<High Temperature>: The upper limit temperature.
<Validity>: When the temperature sensor detects the environment temperature meets the
alarm condition, it will continuously check the temperature <validity> times based on the
reading timer <Temperature Timer> set in command AT+GTACD. If the temperature keeps
meeting the alarm condition, the temperature alarm will be triggered.
<Send Interval>: After passing the <Validity> checking, based on the reading timer of
temperature sensor, the device will report temperature alarm every <Send Interval> times of
temperature reading. If <Send Interval> set to 0, it will only report once.
The acknowledgment message of AT+GTTMP command:
+ACK:GTTMP,
Example:
+ACK:GTTMP,040100,135790246811220,,0,000C,20090214093254,11F0$
Parameter Length(byte) Range/Format Default
Protocol Version 6
XX0000 – XXFFFF, X∈{‘A’
– ‘Z’,’0’ – ‘9’}
Unique ID 15 IMEI
Device Name <=20 '0' – '9' 'a' – 'z' 'A' – 'Z' '-' '_' '?'
Alarm ID 1 0-3
Serial Number 4 0000 – FFFF
Send Time 14 YYYYMMDDHHMMSS
Count Number 4 0000 – FFFF
Tail Character 1 $ $
(15 pages)
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