초록 ▼

A navigation device for wheeled vehicles using an optical locating system to determine the vehicle\s position with respect to a set of coded, and therefore separately identifiable, fixed beacons. This optically obtained navigational information is used in conjunction with information from revolution

A navigation device for wheeled vehicles using an optical locating system to determine the vehicle\s position with respect to a set of coded, and therefore separately identifiable, fixed beacons. This optically obtained navigational information is used in conjunction with information from revolution counters on the vehicle\s wheels to permit operation when one or no beacons are visible, and to refine the accuracy of the position determination as derived from the optical system alone.

대표청구항 ▼

A first navigational system for identifying and determining the angular location of a plurality of light radiating beacons comprising: (a) a number of non-polarized light radiating beacon means; a light from said beacon being modulated according to a set of predetermined, identifiable patterns (b) a

A first navigational system for identifying and determining the angular location of a plurality of light radiating beacons comprising: (a) a number of non-polarized light radiating beacon means; a light from said beacon being modulated according to a set of predetermined, identifiable patterns (b) a planar multizoned photodetecting device capable of detecting the light from said beacons and its modulation, and distinguishing at which zones the light from said beacons is detected, (c) an optical means for focusing the light from the beacons on the photodetecting device throughout the angular displacement of the beacons with respect to the photodetecting device, (d) a first ancillary computing means connected to the planar photodetecting device for identifying the particular beacons through their pattern of modulation, and determining the absolute position in space of the photodetecting device or the beacons through the process of triangulation through the determination of two or more beacons\angular position by relating the presence or absence of a beacon signal to a given zone of the photodetecting device.