4 ms·

Would triangulation solve at least the signal boost part of the equation? A car thief would have a heck of a time trying to violate the laws of physics to tric

Would triangulation solve at least the signal boost part of the equation? A car thief would have a heck of a time trying to violate the laws of physics to trick that, no?

yencabulator 6y ago
No need to triangulate, just measure round-trip time.
- egwor 6y ago
  Ooh, interesting. Wouldn't that be an extremely short time to measure? It would need to compare <1m response time vs <10m? I would imagine that having an accurate time chip for that short duration would be quite expensive? I have no idea though. I'd be interested to know more
  - egwor 6y ago
    (as in 1meter rather than 1min!)
  - yencabulator 6y ago
    You won't be driving a stolen car very far if you have to stay within 10 meters of the owner & their keyfob/phone. Accuracy of <200 meters would already eliminate the idea of being able to drive away with a stolen car by just boosting the keyfob signal. And modern cars absolutely know how to switch safely to a "limp mode" that lets you pull over safely.