| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems with a synchronous wireless system, wherein a slave wireless terminal consumes more power for beacon search, if the slave wireless terminal is installed before a master wireless terminal which transmits beacon signals is installed.SOLUTION: The wireless system includes a plurality of slave wireless terminals which have a second beacon signal generator for periodically transmitting a second beacon signal, a beacon signal receiver for receiving a first beacon signal transmitted from the master wireless terminal or second beacon signals transmitted from other slave wireless terminals, and a slot generator for generating transmitting and receiving timings by receiving the first beacon signal or the second beacon signal. When not receiving the first beacon signal from the master wireless terminal but receiving the second beacon signal, the slave wireless terminal stops beacon signal search. When receiving neither the first beacon signal nor the second beacon signal, the slave wireless terminal transmits the second beacon signal and searches for the master wireless terminal. |
