Sounds like your idea addresses a real need. I wonder why I haven't heard about this kind of thing already implemented?
Price maybe? http://www.gizmag.com/spybike-gps-tracker/22999/ says $153.58 plus a pay-as-you-go SIM card.
Also http://www.zoombak.com/products/service-plans/
I wonder what it would take to make it more economical.
I got hit by what seems to be some kind of paradox: old casual bikes are targeted more often than expensive flashy ones.
Given the ratio of hours ridden to power draw of a small tattletale device, you could probably put a couple of magnets on the crank assembly (inside the tube the connects the crank to the frame), along with a couple hundred coils of wire and create a very nice charging circuit. It might take even 100 hours of riding to build up an initial charge, but I'm guessing that would be no problem in a typical scenario, even if it took 2 weeks to get there.
First, how you are going to pass a "big spark" through the frame? Carry around a big ass battery while you're on the hunt for bikes?
Secondly, the current would follow the path of least resistance, through the frame itself. Unlikely to really affect a module inside the frame, especially if that module is wrapped in an insulator.
My last question was about communicating openly or not about it.
- Openly would make robber aware and probably come up with attacks
or blocking means, but that would surely render their activities
a lot more complicated. Could be mass-produced.
- Secretly a few people would have it and use it as bait, and
authorities being aware of the scheme would casually catch robbers
later. No mass-production
Oh one more thing, I was thinking about using a cellular module with custom firmware to reply to text messages with gps position but I'm not sure it's feasible.http://www.spybike-gps.com/products-gps-localization/top-cap...
http://www.uwpd.wisc.edu/crime-prevention-bait-bike-program....
distance sensors
front,back,driver cameras
automatic brakes
gyroscope balancer
whatever ...Is it a potent law-tool for Londoners? What was the reasoning for getting so very many? How do people generally feel about them?