3 ms·
> Your car will go to the wrong place because it failed to account for a leap second, thus breaking gps. I do get the implication you're going for, but GPS act
by ThatGeoGuy 9y ago
> Your car will go to the wrong place because it failed to account for a leap second, thus breaking gps.
I do get the implication you're going for, but GPS actually ignores leap seconds for this reason. The time scale on the GPS system was fixed when it was deployed, and is 18 seconds ahead of UTC because it does not account for leap seconds.
Sometimes we design horrid systems that are harder to use than analog counterparts. Sometimes, our systems work because they required a lot of thought to go into them. AI hell is more likely to be a problem of decision trees than it is going to be anything to do with sensor disruption or time offsets.
- mxfh 9y agoAlso GPS, now a part of all GNSS, is not an as essential system for fully automated driving, as pretty much all the other sensors (See also GNSS-denied navigation research). If your navigation system didn't fail so far, it won't in the future. Navigation is the solved part.
- d0mine 9y agowrong. The difference between GPS and UTC is not fixed. (you might have confused it with the difference between TAI-10 and GPS that is constant) Here's how to get UTC time from GPS time using Python https://stackoverflow.com/questions/33415475/how-to-get-current-date-and-time-from-gps-unsegment-time-in-python https://stackoverflow.com/questions/33415475/how-to-get-curr...
- d0mine 9y agoI wonder why the fact is downvoted? It is easy to check that the statement is true, just click the link, run the code, see the results, read the authoritative sources linked there for additional information.
- ThatGeoGuy 9y agoBecause the GPS time scale is fixed. UTC drifts by leap seconds, GPS ignores them. I'm not sure what the point of the stackoverflow link is, because it certainly says as much itself. Yes, I understand that additional leap seconds are added as time goes on, which makes the difference between GPS and UTC larger as the years go by. But this doesn't mean that the GPS time scale isn't fixed.
- d0mine 9y agoMy comment says explicitly that the difference the difference is not fixed. Even your comment aknowledges it (the difference increases with each intercalary leap second).