无线传感器网络的硬件设计

The Hardware Design of Wireless Sensor Networks

根据无线传感器网络(WSN)的设计要求,结合系统的实际情况,给出了无线传感器节点的硬件设计方案,包括传感器单元、处理器单元、A/D单元、射频单元、供电单元以及扩展接口单元的设计.选用CC2431作为系统的微处理器,采用温度、湿度以及烟雾等3种传感器,并选用ZigBee协议作为无线传感器的传输协议,实现了一种低功耗的无线传感器网络节点硬件平台.并采用所设计系统进行了无线测温实验.

This paper shows the hardware design of wireless sensor networks nodes according to the requirements of WSN and the actual situation of the system,containing a sensor unit,processor unit,A/D modules,RF modules,power supply unit and expanded interface unit.CC2431 is used as the microprocessor in the system.Temperature,humidity and smoke sensor are used.And ZigBee protocol is selected as the WSN transmission protocols to achieve a low-power wireless sensor network node hardware platform.And wireless temperature measurement experiment is completed using the designed system.