5D Robotics Can Locate You To Within An Inch

GPS falls from the sky and costs nothing to use, but it may not reach a car roving the canyons of Manhattan or a forklift moving boxes in a warehouse. For uninterrupted autonomous driving, you need some backup. Sure, you can festoon your vehicles with a vast array of overlapping sensors, but even that won't always give you a clear sense of where you are. So, when the GPS satellites can't pinpoint you, why not resort to land-based beacons? That's the solution proposed by 5D Robotics, a Carlsbad, Calif.