Geotab Support Forum

Hello

I'm getting frequent Brown Out and power reset. Low voltage. Please explain the differences between them.

Please send a document that explains other different Log Reasons as well.
Please send me a regular\perfect log reason sequence for a trip.I frequently get BeginOfStop,EndOfStop and GprsModemPowerOff in trips with ignition and valid true.

Is it possible that a 24v lorry gets a Low Voltage while driving. The unit is powered to ignition switch

Please advise

The difference between Brown out and power reset is below:
A brown-out reset occurs when the voltage to the GO device drops due to a bad battery or noise / spikes on the power line.
A power-on reset occurs when the voltage to the GO device is removed completely (the device is unplugged).

Here is a list of common log reasons:

Accident Accident data
Heading Change in heading
Speed Change in speed
Time Maximum time between logs have elapsed
Aux Auxiliary triggered
Ignition Ignition state changed
Reset Power on reset occurred
Next First valid GPS record received after the GPS turned on
All All valid GPS records logged (debug purposes)
Antenna Change in antenna state
SpeedingStart Speeding threshold reached
SpeedingStop Speeding reset speed reached
GpsShutdown GPS Engined shutting down
HotStartStart Hot start wake up
HotStartValidSignal Hot start valid signal acquired
HotStartNoValidSignal No valid signal acquired during hot start
InvalidGpsSignals Too many invalid GPS messages received
GpsQuiet GPSQuiet
BrownOut Brown out reset occurred
HarshBraking Harsh breking occurred
BeginOfStop Beginning of stop (speed reached 0)
EndOfStop End of stop (speed changed from 0)
SystemReset A system reset occurred
HeartbeatSuccess A Heartbeat Success received
HeartbeatFailure A Heartbeat Failure received

Accident report shows debug records with reason codes of 77, 81, 84, InvalidDate. Can you explain these reason codes as well?

Invalid Date simply means that that log did not have a valid date/time stamp.
77 = TwoWireBasedIgn = Means that the device picked up ignition via Two-Wire Logic (using voltage and movement and not RPM)
81 = GSMInfoSent = Just a log that sends gsm info to our servers
84 = PowerDebug = whenever the GPS or the modem turn off or on.

Hi Mauricio

What about high voltage while ignition off messages?

High Voltage While Ignition Off The device has detected a voltage of 13.8V or higher while the ignition was off