低功耗无线传感器网络节点的设计

Low Power Consumption Design for Wireless Sensor Networks Nodes

在对无线传感器(WSNs)网络体系结构、传感器节点的特点、功能分析的基础上,给出了无线传感器网络节点的软硬件低功耗设计与实现方案。传感器节点以低功耗嵌入式处理器MSP430F1611为核心,TinyOS为嵌入式实时操作系统,配以基于IEEE 802.15.4的MAC层协议的无线传输模块作为网络数据出口以及CC2420无线收发器,可以实现高速的数据采集和可靠的数据传送,能够较好地达到低功耗和实时性的要求。测试结果证明:该平台适合节点的应用,具有易使用、低功耗特点。

Wireless sensor network is the new generation sensor network, which has an extensive application and bright foreground. Design and realization scheme of network node in wireless sensor networks are proposed based on the introduction of its system structure, characteristics and function. The low consumption embedded CPU - MSP430F1611 is the core of network node, which has the TinyOS embedded operation system,the interface of GPRS model with MAC based IEEE 802. 15.4 and wireless transceiver CC2420. It can collect and transmit data reliably at high speed. The system meets the needs of low - power and real - time. Test results show that the method has low power consumption, easy to use and other advantages.