ST4345 User Manual
15
on report parameters. It may be used for saving LTE-M1 fee. Current version cannot support this
option.
Group Send
The device stores data if the vehicle is in no LTE-M1 area. And, the vehicle moves to LTE-M1 available area,
device starts sending stored data.
If group send option is enabled, the device makes 5 reports to one bundle and send these 5 reports at one
time.
Group send is useful to speed up sending.
M_Sensor
1. Collision: The device sending a event when ignition is ON and have a motion.
2. Shock: The device sending a event when ignition is OFF and have a motion.
Jamming detection procedure
JAM_CHK_DIST & JAM_CHK_TM are assist for jamming detection to avoid false detection.
At least, we recommend use JAM_CHK_DIST for safety.
If you use two assist functions, it can detect two case of jamming as follows.
*Case of jamming LTE-M1 only.
Jamming detected -> JAM_CHK_DIST -> JAM_CHK_TM -> Triggered by JAM_DET mode.
*Case of jamming LTE-M1 & GPS.
Jamming detected -> JAM_CHK_TM -> Triggered by JAM_DET mode.
JAM_CHK_DIST : if 0, skip this function.
JAM_CHK_TM : if 0, skip this function.
If disable all of assist functions, just triggered by HAM_DET mode after detected jamming.
In this case, it’s possible to false detection in weak LTE-M1 or strong radio area.
4-6. Additional Parameters
HDR DEV_ID VER SVR_TYPE B_SVR_TYPE UDP_ACK DEV_PORT
● Definition : Setting additional parameter requested.
Field Definitions Unit Remark
HDR “ST4345ADP” Command type
DEV_ID 6 char. Device ID
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