| 摘要 |
PCT No. PCT/GB95/02545 Sec. 371 Date Sep. 19, 1997 Sec. 102(e) Date Sep. 19, 1997 PCT Filed Oct. 31, 1995 PCT Pub. No. WO96/18114 PCT Pub. Date Jun. 13, 1996An object sensing system comprises an array of emitters (3) and detectors (4). The emitters are arranged with overlapping fields of illumination such that each illuminates at least part of a space within which objects are to be sensed. Each detector is positioned to detect radiation reflected from the emitters towards it from any object in the space. The emitters are energized in a sequence such that the space is illuminated by each emitter in turn. The sequential energization of the emitters is correlated with an output of each detector to sense an object and its range within the space.
|
