摘要
无线传感技术相对于传统的传感技术具有方便、快捷、成本低等优点。由无线传感器构成的无线传感器网络能够在无人区域内迅速的构建网络拓扑,达到传输探测信息的目的。但由于其传感设备节点功耗受限问题的存在,给无线传感器网络的稳定性及可靠性带来一些问题。主要针对无线传感器网络中的节点功耗受限的问题,将传感器节点分为处理器单元、传感单元、无线传输单元、电源管理单元4个单元进行研究与分析,探讨如何通过合理设计电路来降低设备功耗,提高设备的能量利用率,从而达到提高无线传感器网络的稳定性和可靠性,延长网络生命周期的目的。
Comparing with traditional sensor technology, wireless sensor technology is convenient, quick and low cost. With the wireless sensor nodes, network topology can be constructed quickly in an unmanned area, so detected information can be transmitted by the wireless network. Because of limited power of the node, that has impact on the stability and reliability of the wireless network. According to the feature of limited power in wireless sensor node, from a view of hareware design, these units of wireless sensor node are researched and analyzed including processor unit, sensor unit, wireless transmition unit, power management unit. How to design a circuit to lower the power consumption and raize the utilization rate of the power is discussed for the purpose of improvement of stability and reliability and a longer life of the wireless sensor network.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第24期6221-6223,共3页
Computer Engineering and Design
关键词
无线
传感器
低能耗
硬件电路
能量有限
wireless
sensor
low power consume
hardware circuit
limited power
