What you describe is called indirect TPMS. It works by measuring the differences in speed between wheels through the ABS wheel speed sensors, and triggers if it detects an outlier. It doesn't require an additional sensor inside each wheel, instead using existing sensors and some arithmetic, so it costs less, but cannot indicate the pressure for each individual wheel, plus it requires the reset procedure that you referenced when new tires are installed or after you've corrected whatever caused it to trigger.
My Home Assistant has an RTL-433 radio and logs every tire that passes within range while transmitting. I can match that to camera feeds and get the schedules of anyone who uses my residential street.
Mainly I use it to notify me when one of the family cars arrives home, but the other uses are trivial and I've played around with them.
I think the idea is that you can install sensors around town and track the movements of a vehicle, much like a flock camera. There's also been rumors for decades that car tires themselves have RFID tags embedded in the rubber and the magnetic loop sensors at traffic lights can read these RFID tags to track cars as well.
It's illegal to change your license plate. It's not illegal to scan someone's sensor ids, clone them on your vehicle, then drive by one of these 3rd party sensors while committing a crime (well the crime part is illegal). The point is someone can steal your 'car identify' by doing this. Today's that's not too useful. Maybe tomorrow it will be. Perhaps there's a push back against cameras and cities switch to tire tracking instead. It'll matter then. Or perhaps these ids are already being tracked into
This has been an know issues/concern going back to at least 2014. People were talking about it at security conferences back then.
What you describe is called indirect TPMS. It works by measuring the differences in speed between wheels through the ABS wheel speed sensors, and triggers if it detects an outlier. It doesn't require an additional sensor inside each wheel, instead using existing sensors and some arithmetic, so it costs less, but cannot indicate the pressure for each individual wheel, plus it requires the reset procedure that you referenced when new tires are installed or after you've corrected whatever caused it to trigger.
My Home Assistant has an RTL-433 radio and logs every tire that passes within range while transmitting. I can match that to camera feeds and get the schedules of anyone who uses my residential street.
Mainly I use it to notify me when one of the family cars arrives home, but the other uses are trivial and I've played around with them.
It's illegal to change your license plate. It's not illegal to scan someone's sensor ids, clone them on your vehicle, then drive by one of these 3rd party sensors while committing a crime (well the crime part is illegal). The point is someone can steal your 'car identify' by doing this. Today's that's not too useful. Maybe tomorrow it will be. Perhaps there's a push back against cameras and cities switch to tire tracking instead. It'll matter then. Or perhaps these ids are already being tracked into