alert_id
Alert type
bck_volt
Voltage value of backup battery
bsic_id
Serving Cell BSIC
emg_id
Emergency type
evt_id
Event type
h_meter
Driving hour-meter
ign
Ignition
loc_id
Location Code ID
mileage
Traveled distance
mode
Move status
msg_num
Message number
pwr_int
Voltage value of main power
tps_in
Total number of people on the bus
tps_out
Total number of people out of the bus.
valid
GPS status
