We develop a vehicle tracking device with UC15 and we activate the jamming detection so that the device warns of possible signal blockages to the driver of the vehicle or take any other action, including stopping the engine through cut off fuel or power:
Our problem is that the UC15 frequently triggers Jamming events when the vehicle is in an area with poor network coverage, mainly in:
1- underground parking
2- routes in rural areas
We need to test the other parameters of AT+QJDCFG to be able to differentiate between poor network coverage and a signal inhibitor that tries to block device communication. The goal is:
a) to be able to filter jamming events due to poor network coverage (to detect mainly jamming due to an inhibitor device)
b) or, to be able to differentiate when jamming is fired for one reason or another, and to take different actions in each case.
To do these tests we would appreciate the help of who could offer us the following information (totally or partially):
i) a more detailed description of what the QJDCFG parameters mean (leaving aside ‘urc’ and ‘period’ which are the most obvious)
ii) how is the relationship of the value of these parameters with the sensitivity in the detection? Which are directly proportional (the higher the value, the greater the sensitivity to detect Jammin)? And which are inversely proportional?
iii) Finally, if anyone has any advice or suggestions on how to design these tests (or which of the parameters of QJDCFG are the most important) to obtain useful results, we will be very grateful to whoever shares that information.
Thanks in advance