| 摘要 |
PROBLEM TO BE SOLVED: To prevent interference of optical radio data in an optical radio communication system which performs communication between devices by utilizing optical radio. SOLUTION: A selection designating means 1a of a master unit 1 performs selection specification of a slave unit which is the other communication party by the operation, etc., of an operator. An identifier sending means 1b sends an identifier of the slave unit that is performed selection specification as optical radio data. An identifier storing means 2a of an optical radio-relaying device 2 stores an identifier sent from the unit 1. On the other hand, in the slave unit 3, its data sending means 3a incorporates a self-identifier in data to be sent to the unit 1 and sends it as optical radio data. A relaying means 2b of the device 2 relays only optical radio data that includes the identifier that is the same with the identifier stored in the means 2a to the unit 1 side among optical radio data that are sent from the unit 3 side. The unit 1 which receives the optical radio data from the unit 3 side by a data receiving means 1c processes only optical radio data that includes the identifier that is the same with the identifier that is previously sent by its data processing means 1d. |
