摘要
针对无线传感器网络节点低功耗设计问题,介绍无线传感器节点组成及其能耗,分析动态功率管理原理及其算法,研究混合自动控制并对其进行改进。改进的混合自动控制算法通过对环境变量的变化值划分来控制无线收发模块的收发频率,能减少收发次数,降低系统功耗。最后介绍了在MSP430,nRF905和SCA3000组成的无线加速度传感器系统中对倾斜角测量时改进的混合自动控制算法的应用。
Aiming at difficulties of low-power consumption design of wireless sensor network nodes, the constitution and power consumption of wireless sensor network nodes are introduced, the dynamic power management and its algorithms are analyzed,the hybrid auto control is studied and improved. The improved hybrid auto control algorithm divided the variation values of environment variable into different parts to control the transceiving frequency of the transceiver module, the way which can reduce frequency of transceivers and the power of system. The improved hybrid autocontrol algorithm are applied in the wireless system composed of MSP430,nRFg05 and SCA3000 to measure tilt angles.
出处
《现代电子技术》
2010年第8期163-166,共4页
Modern Electronics Technique
关键词
混合自动控制
动态功率管理
无线传感器
低功耗设计
hybrid auto control
dynamic power management
wireless sensor low-power consumption design
