Yep. I have a product idea. GPS is good for many things, but the one
thing that it does VERY well is measure speed and acceleration. It
would be fairly easy[1][2] to design a GPS tracker/logger that logs
it's general location, but also logs all the full and partial stops.
Maybe have the tracker generate an irritating beep if the driver fails
to come to a complete stop.
If too messy or inaccurate, a 2 axis accelerometer should be able to
detect when the vehicle (or bicycle) has stopped moving. However,
without GPS, there would be no way to accurately located the stop
signs and signals.
Yet another project.
[1] One complication is that if the tracker comes to complete stop,
the GPS location wanders around (drunkards walk) at about a 1 mph
speed. The speed never really goes to zero. I think I have a way to
deal with that, but it needs testing.
<
https://stackoverflow.com/questions/41805990/android-location-going-for-a-walk-by-itself>
[2] Another problem is that it won't work very well using a
smartphone because it has to be powered on all the time while the
vehicle is moving. No problem with battery power in a car, but a
bicycle is another story.
--
Jeff Liebermann
je...@cruzio.com
PO Box 272
http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS
831-336-2558