To provide a load control system for performing communication between a main station 14 and sub stations 15 by radio transmission, in which one of the sub stations 15 can be disposed in a place where direct communication to the main station 14 cannot be established and can communicate to the main station 14.
The main station 14 and the sub stations 15 are designed to communicate each other by radio communication. One of the sub stations 15 is designed to communicate to one of host stations including the main station 14 and one of sub stations 15 capable of communicating to the main station 14, and to relay communication between one of the host stations and one of subordinate sub stations 15 which cannot establish communication to the host stations. Since one of the subordinate sub stations 15 can function as a relay station, the sub stations 15 can be disposed at the place where direct communication to the main station 14 cannot be established, and can communicate to the main station 14.
MORITA MASAYUKI
MORIMOTO YASUSHI
Satoshi Kabazawa
Tetsuya Yamada