| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless sensor network system, base station, wireless sensor and program for preventing information transmitted from a base station which stores information measured by a wireless sensor, and information transmitted from another base station from being lost by colliding with each other. SOLUTION: A base station 2a<SB>1</SB>allocates a polling signal for each of a plurality of wireless sensors 1a<SB>1</SB>-1c<SB>1</SB>and transmits the polling signals and measurement time data to the plurality of wireless sensors 1a<SB>1</SB>-1c<SB>1</SB>. Each of the wireless sensors 1a<SB>1</SB>-1c<SB>1</SB>acquires information based on the measurement time data, records the information and transmits the recorded information to the base station 2a<SB>1</SB>if the polling signal allocated by the base station 2a<SB>1</SB>is received. The base station 2a<SB>1</SB>stores information transmitted from the wireless sensors 1a<SB>1</SB>-1c<SB>1</SB>and if a token T transmitted by an administrative server 3 is received, the information is transmitted to the administrative server 3. COPYRIGHT: (C)2007,JPO&INPIT
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