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Wireless sensor network system, information gathering apparatus, sensor device, and connection method for use in wireless sensor network
Wireless sensor network system, information gathering apparatus, sensor device, and connection method for use in wireless sensor network
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机译:无线传感器网络系统,信息收集装置,传感器设备以及用于无线传感器网络的连接方法
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摘要
A wireless sensor network system includes a plurality of sensor devices each having a non-directional antenna, and an information gathering apparatus having an adaptive array antenna and gathering information detected by the plurality of sensor devices. Each sensor device includes a transmitter to transmit a transmission request for connecting to the information gathering apparatus. The information gathering apparatus includes, a first directivity-changing section that, when the information gathering apparatus receives a transmission request from an unconnected sensor device, performs one of changing the adaptive array antenna to be non-directional, and changing a directivity of the adaptive array antenna, and that receives a signal transmitted from one of the unconnected sensor device and the unconnected sensor device and a connected sensor device, and a second directivity-changing section to change the directivity in accordance with a reception state of the signal.
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