Question

Dear Community,

I have an FMB920, and it will be installed as a test on a General Aviation Aircraft (Piper/Cessna/etc).

Considering I do not need to check for theft (hence when aircraft is stationary I do not need monitoring)

What are the best configuration options to make the device sleep, and hence conserve as much of its onboard battery as possible?

P.S. this beauty works very well in flight (see below)

Thanks in advance!

Jonathan

Answer 1

Hello Jonathan,

You can choose a few types of sleep modes: GPS sleep, Deep sleep, Online Deep sleep and Ultra sleep mode. At every sleep mode you need to configure it’s timeout parameter (defined in minutes) to start counting when device will go on sleep mode when it’s on STOP.

GPS Sleep mode: your device will go to sleep but still it will make new periodic records and you can get SMS messages with this mode being activated and will save power about 20 times from norminal.

Deep Sleep mode: after it’s go to sleep mode it won’t generate new records and you won’t woke up your device via SMS function.and will save power about 30 times from norminal.

Online deep sleep mode: your GSM part will be activated you can receive or send SMS and make and receive calls that makes so this increases your power consumption but it works like Deep sleep mode and will save power about 25 times from norminal,

Ultra sleep mode will turn off your GSM and GNSS modems and reduce the power surge on I/O,
 

In conclusion we strongly recommend to use GPS sleep mode or deep sleep mode to get records and SMS messages when device will sense any movement by movement source or movement sensor is detected or Ignition (configured Ignition Source) is turned on.

For additional information about sleep modes you can find at: https://wiki.teltonika.lt/index.php?title=FMB920_Sleep_modes

Best Regards

Comments

Hello

Make sure that you are comply with the FEDERAL AVIATION ADMINISTRATION rules.Any device that install in an aircraft needs certain certificate to make sure that there is no interfirience on the avionics of the plane.

Best regards

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I have a question on ultra sleep mode. What's the power saving delta and can accelerometer wake this up? What's the cold start time in that case?

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1. FMB920 exits ultra deep sleep mode only when DIN1 and movement are detected by accelerometer. Movement source and Ignition source configuration is not taken into account in this case.( For additional information about sleep modes you can find at: https://wiki.teltonika.lt/index.php?title=FMB920_Sleep_modes )

2. Power consumption in Ultra Deep Sleep: average 2.08 mA ( More details You can find at https://wiki.teltonika.lt/index.php?title=FMB920_General_description )