Wireless communication system, shooting training system, the method of wireless communication, and optical signal receiving apparatus

摘要

PROBLEM TO BE SOLVED: To prevent a long-distance receiver from receiving unnecessary data without depending upon characteristics of a laser beam by making a transmitter add location information to data and send them.;SOLUTION: A control part A 3 of a transmission device 4 and a control part B 6 of a reception device 7 receive location information through GPS by a satellite 1. Then the transmitter 2 sends the laser beam generated by adding the location information to the data and a receiver 5 extracts the location information included in the received laser beam. Further, the controller B 6 computes the laser beam arrival distance between the transmission device 4 and the reception device 7 according to the location information that the controller B 6 obtains and compares it with previously set distance information. When the computed laser beam arrival distance is less than the distances in a specific range, the data are taken in the receiver 5 from the laser beam sent from the transmitter 2. Namely, the reception device 7 selects received data according to the location information and then the laser beam arrival distance can be regulated.;COPYRIGHT: (C)2003,JPO