MOBILE OPTICAL COMMUNICATION SYSTEM, PHOTODETECTION DEVICE, OPTICAL COMMUNICATION DEVICE, AND CARRIER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a mobile optical communication system which decreases the number of installed ground optical communication devices and is then simplified, reduces the cost for the installation of the ground optical communication devices, and enables a ground optical communication device to be installed even at an end part of a track. ;SOLUTION: One or more mobile stations (not illustrated) and one or more base stations (not illustrated) are each equipped with an optical transmission device 2 having a photodetection part 30 provided with optical sensor L1, L2, C, R2, and R1 arranged having their photodetection axes point radially outward from a turning shaft 41 so that they turn around the turning shaft 41, a means 50 which selects the optical sensor having the largest photodetection intensity among the sensors L1 to R1, a means 40 which rotates the photodetection part 30 on the shaft 41 of rotation so that a specific position C of the photodetection part 30 is directed to the photodetection direction of the selected optical sensor, and an optical communication device 20 which has its transmission and reception direction directed almost to the specific position C and the photodetection direction and the transmission and reception direction are almost in the same plane.;COPYRIGHT: (C)2001,JPO