RADIO NETWORK SYSTEM

PROBLEM TO BE SOLVED: To provide a radio network system where inconvenience of the radio network system due to a radio device fault and a communication fault can be avoided. SOLUTION: The radio network system includes a plurality of radio devices in which one or above arbitrary radio communication specifications can be used, which have a unique address corresponding to a radio network and have functions for managing addresses of a master radio device, a slave radio device and parallel radio devices. A plurality of groups where a pair of radio devices are made into a parallel relation are formed, master-slave relationship is formed between the respective groups, and the radio network is constituted. One of a pair of radio devices in the parallel relation is previously selected and data communication is performed. COPYRIGHT: (C)2006,JPO&NCIPI