Patent ID: 6492650
Filing Date: 2002-12-10
Classification: G08C,H04B

Abstract:
A sensor unit for a multiple sensor unit array containing a plurality of such sensor units closely one next to another,the sensor unit comprising a housing that is adapted to be mounted closely one next to another and to be connected to a sensor head via a cable, the housing accommodating a sensing circuit system for achieving a desired sensing function in cooperation with the sensor head, a first optical communication circuit system including a light emitting device and a light receiving device for conducting an optical bi-directional communication with one of the adjacent sensor units in a multiple sensor unit array, and a second optical communication circuit system including a light emitting device and a light receiving device for conducting an optical bi-directional communication with the other of the adjacent sensor units, whereby the sensor unit is enabled to conduct an optical bi-directional communication with each of the adjacent sensor units in the multiple sensor unit array.