Are We Too Reliant On GPS? 325
Posted
by
samzenpus
from the please-don't-take-my-GPS dept.
from the please-don't-take-my-GPS dept.
RedEaredSlider writes "A new report from the Royal Academy of Engineering in London suggests developed nations have become too reliant on GPS systems. The report from the Academy focuses on global navigation satellite systems (GNSS) and their vulnerabilities. These vulnerabilities include deliberate or accidental interference, both man-made (such as jamming) and natural (such as solar flares). While most people equate GPS systems with the tiny screens which get drivers from point A to point B, the report says society's reliance on the technology goes well beyond that. The Academy says the range of applications using the technology is so vast that without adequate independent backup, signal failure or interference could potentially affect safety systems and other critical parts of the economy."
Re:Uh, no. (Score:5, Informative)
The worst part about this is that the solution is not as easy as this article makes it out to be. GPS signals have to be as weak as they are by design- you just can't get much more transmitting power into those satellites, and while LORAN might help, I don't think it has the accuracy either in positioning or in timing that a lot of applications need. It does highlight the necessity for these devices to "fail gracefully" instead of catastrophically though.
original report is online (Score:4, Informative)
Re:Uh, no. (Score:5, Informative)
Well, I guess you haven't heard about all of the things that are actually reliant on GPS. Sure, it is used for consumer navigation and that could easily be replaced with a paper map.
But, did you know that the 60Hz synchronization of electrical generation in the US is reliant on GPS clocks? Lose GPS and the synch will drift and this results in disconnecting from the grid. I.e., power failures. I believe the previous synchronization systems were primarily manual tuning which was happily thrown out completely when the GPS clocking was available. No, nobody can go back now. At least not without some pretty significant down time.
And of course we are working up to a aircraft navigation and control system that will be 100% reliant on GPS. No GPS = planes do not take off. Not just passenger planes but also all air cargo.
Ships at sea used to use LORAN but the US Coast Guard has been dismantling the LORAN system they maintained. I believe it is gone now, so there is no going back.
Most of the stratum-1 NTP clocks (keeping the Internet clocks synchronized) are driven from GPS today. Not atomic reference clocks and not radios receiving WWV signals but GPS. Think about how much fun it is to synchronize databases when the system clocks aren't in agreement.
Are you getting the picture? GPS is used for way, way more than consumer navigation in cars. Lose the GPS system and today there is no backup and no possibility of continuing without some pretty major hiccups.
Re:Per Submission or Per Word? (Score:3, Informative)
Yep, another example of the dumbing down of /. the tag line really ought to be changed to 'old news for wannabe nerds, stuff that's paid for'.
This story hit the BBC at least 21 hours before IBTimes published and, unlike IBTimes, they had the good journalistic principles to link to the original report for us all to read: http://www.bbc.co.uk/news/science-environment-12668230 [bbc.co.uk]