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Tanker Truck Shut Down Via Satellite
unassimilatible writes "Satellite Security Systems, in cooperation with the California Highway Patrol and InterState Oil Company, demonstrated the first wireless remote shutdown of a fully loaded, moving gas tanker truck. Described as "a viable solution to the challenge of controlling rogue hazardous waste vehicles that could pose a threat to homeland security," satellite communications were used to disable the truck in seconds, 530 miles from the demonstration site. But that's not all. California Assembly Bill (AB) 575 (PDF link) would require truck disabling devices, global positioning or other 'location reporting systems' on all hazardous material haulers. With all of the police pursuits in California, can mandatory GPS and disabling devices in all vehicles be far away?"
As a trucker, I'll weigh in on this. The systems on trucks are generally Qualcomm satellite systems. The problem with that being it relies on a line-of-sight link with the satellite. Going up a mountain, pulling under a fuel island, all sorts of normal operation things cut the signal. Lots of guys put trashcans over their dishes at night so dispatch won't bother them while they're sleeping.
So this fancy-shmancy Homeland Security plan can be defeated with a trashcan. Satellite signal blocked = No shutting the truck down remotely. And I know what you're all thinking, "What a redneck, we could just make it where X minutes of signal blockage shuts down the truck!" Right. And if there's a traffic jam in a tunnel, you'll just exacerbate it by having a dead truck there? This is just another of the gov't's "Big Ideas That Will Not Work."
It's easy to block those satellite signals, and it's not reasonable to put a timer on it so that X minutes of no signal == shut down truck.