| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system for changing operation states, such as on-off of power supply of a node driven by a battery disposed on a sensor network system. <P>SOLUTION: In the sensor network system, a router is provided between a node for transmitting a sensed signal of a sensor and a base for receiving a data frame of the sensor from the node, human body communication is used for transmitting the data frame from the node to the router, and a conventional radio is used to transmit the data frame from the router to the base. Operation states, such as switching on and off a power supply of the node, are performed by a signal from the router. <P>COPYRIGHT: (C)2010,JPO&INPIT |
