SENSOR SIGNAL TRANSMISSION SYSTEM AND SENSOR SIGNAL TRANSMISSION METHOD

PROBLEM TO BE SOLVED: To provide a sensor signal transmission system and a sensor signal transmission method, capable of performing accurate transmission even when using a diffusion reflecting communication path beyond a visual line in spatial transmission of detection data by a plurality of sensors to a data collection device by use of optical signal. SOLUTION: Detection data detected by each sensor device 3 is converted to a time difference of output time between first and second optical pulse strings Sc1 and Sc2 to be transmitted to the data collection device 2. At this time, since the optical pulse strings Sc output from a plurality of sensor devices 3 correspond to mutually different diffusion codes respectively, a plurality of detection data can be transmitted without mutual interference. COPYRIGHT: (C)2009,JPO&INPIT