大范围稀疏无线传感器网络(WSN)采用超短波通信,由于工作频道单一,已无法满足网内通信的需求.为此,提出一种自适应认知变频的无线传感器节点设备.设计处理器模块、无线通信模块、太阳能供电模块、传感器模块,定义动态信道分配软件协议,以实现信道认知功能的自适应变频通信.实验结果表明,该设备可以进行远距离持续准确的无线通信,并能完成自适应变频通信.%At present,the wide range of sparse Wireless Sensor Network(WSN) uses VHF communication,but the single channel resources cannot satisfy the requirement of communication among nodes in the network.For this purpose,this paper puts forward an adaptive cognitive frequency wireless sensor node device.It designs processor module,wireless communication module,solar energy power supply module,and sensor module,and defines the dynamic channel allocation protocol software,to realize the adaptive frequency communication of channel cognitive function.The experimental results show that the device can undertake continuous accurate wireless communication over a long distance,and complete the adaptive frequency communication.
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