GV200 @Track Air Interface Protocol
TRACGV200AN003 – 40 –
will be ignored, the terminal reports every <Check Interval> time, and the <Check
Interval> will be forced to 30 seconds if it is less than 30 seconds.
Due to the limitation of the maximum report message length, it must be assured that: <Send
Interval> / <Check Interval> <= 15.
<Send Interval>: Period to send the position information. The value range is 5 – 86400 and
the unit is second. If <report mode> in AT+GTSRI is set to force on SMS, this should be
greater than 15 seconds.
<Distance>: the specified distance to send the position information when <Mode> is 2. Unit:
meter.
<Mileage>: the specified length to send the position information when <Mode> is 3,,4 and 5.
Unit: meter.
<Report Mask>: Bitwise report mask to configure the composition of the fixed report
message.
Bit 0 for <Speed>
Bit 1 for <Azimuth>
Bit 2 for <Altitude>
Bit 3 for GSM tower data, including <MCC>, <MNC>, <LAC>, <Cell ID> and the
<reserved> parameter “00”
Bit 4 for <Mileage>
Bit 5 for <Send Time>
Bit 6 for <Digital Ports Status>
For each bit, set it to 1 to enable corresponding component in the report, 0 to disable. This
mask is effective only to the fixed report.
<Corner Report>: The threshold to determine whether the device is turning around a corner.
0 to disable the corner report. For other values, the device will compare the current heading
with the last known corner, if the difference is greater than or equal to this value, send the
corner report with +RESP: GTFRI.
<IGF Report Interval>: Period to fix and send the position information when <Power
Saving Mode> in AT+GTCFG is set to 2 and the engine is off and if <Mode> is set to 1
(Fixed Timing Report). Its value range is 5 – 86400 and the unit is second, 0 to disable.
<ERI Mask>: If this mask is not 0x00000000, the GV200 will report +RESP: GTERI
instead of +RESP: GTFRI, and this mask is used to configure whether to show the items.
Bit 0: digit fuel sensor.
Bit 1: AC100 1wire bus controller.
The acknowledgment message of AT+GTFRI command:
+ACK:GTFRI,
Example:
+ACK:GTFRI,040100,135790246811220,,000A,20090214093254,11F0$
Parameter Length(byte) Range/Format Default
Protocol Version 6
XX0000 – XXFFFF, X∈{‘A’
– ‘Z’,’0’ – ‘9’}
(15 pages)
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