https://www.yahoo.com/news/worlds-first-self-driving-taxis-010338357.html?ref=gs
not sure what the technology behind the navigation part but I would guess GPS has a hand in it. Notice the tall buildings? I myself am having troubles getting a fix under those tall buildings. So not sure if you could rely on gps signals to guide the car in a metropolis.
Have talked to guy about it. Apparently. GPS is used initially to get a fixed and it loses signal by going under tunnels or such it switched to a preloaded map and with an accelerator which is able to measure its speed it can Guess its distance until a fix
That sounds similar to the "dead reckoning" my car GPS units have. When I enter a tunnel, last speed is used to project progress through the tunnel. In the past I have read about car GPS that hooks up to car systems to use relevant info such as speed.
Automotive GPS with dead-reckoning is getting bigger and bigger.
It uses the car's odometer via ODBII and extra sensors (barometer, gyroscope, etc.)
Several chip manufactures offer it -- u-blox, trimble, furuno, sparkfun, sirf/csr/qualcomm.
-FGN.
I know I will be corrected if (when) wrong, but here goes..... I figured the dead-reckoning feature would not be connected to any of the cars' output (odometer, speed, etc).
When GPS is connected to the car in that fashion, is it still considered dead reckoning since it is presumably more accurate than using assumed info?