Rotating Light Beam/Distance Meter Based Location Determining System

摘要

A computer implemented method, system, and computer usable program code are provided for determining the location of a device. A light beam is emitted from a source to a target at a first time. A reflection of the light beam is received from the target at a second time. A distance from the source to the target is determined using the difference between the second time and the first time. An angular position of the target is identified using a position of the source when the reflected light beam was received. Polar coordinates of the target are determined using the distance from the source to the target and the angular position of the target. The light beam is encoded and then emitted from the source to the target. The target does not require power.