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It would be criminally negligent to use GPS for any control decisions in a self-driving vehicle. Aside from wishy-washy long term tasks like what route to take
by MiguelHudnandez 10y ago
It would be criminally negligent to use GPS for any control decisions in a self-driving vehicle.
Aside from wishy-washy long term tasks like what route to take, or which street has traffic, GPS simply cannot be used.
GPS can fail, be jammed, or lose accuracy. I can't imagine there is any risk of any production vehicles using GPS alone. Certainly GPS matching physical reality will be helpful, but no car is going to drive on a sidewalk and plow through fire hydrants because GPS was off by 1.5 meters.
Before a car can enter a physical space, it should verify with at least two local, independent, physical sensors that the intended space is unoccupied and that no detectable objects are on a trajectory to occupy that space. Our brains do these calculations very easily and with minimal conscious thought. However, our brains' attentiveness and accuracy leave much to be desired.
- notahacker 10y agoI think the potential issue with GPS being a couple of metres out issue is less cars driving through fire hydrants and more the car driving down what GPS thinks is the correct route and looks like a nice open stretch of road to the computer vision, but is in fact the wrong lane...
- maxerickson 10y agoI hope nothing on the road is that naive with lane finding. I can't imagine it would be.
- bbradley406 10y agoA common problem I've had with standalone GPS units is that they get confused when two roads are very close to one another. Highway overpasses, on-ramps and off-ramps, routes right next to highways, etc. You wouldn't want your self driving car to think it's on a freeway and should do 65 when you're really on the dirt farm road right next to it.