| 摘要 |
PROBLEM TO BE SOLVED: To provide a beacon radiocommunication device for eliminating a cause of collision and efficiently transmitting information with one beacon. SOLUTION: An end device detects an identification number of the own end device in a beacon signal, and acquires, when the identification number is detected, the number of all end devices included in the beacon signal and the order of the identification number of the own end device. In accordance with the known beacon frequency or the like, the end device calculates an access time to access a coordinator, and communicates with a coordinator when the access time comes. COPYRIGHT: (C)2009,JPO&INPIT |
