LI Yong-cheng1, LING Qing1, SHI Chun1, et al. Voltage monitoring of wireless sensor networks node[J]. 2012, 31(6): 140-142. DOI: 10.13873/j.1000-97872012.06.027.
无线传感器网络节点的电压监测
摘要
电池供电的无线传感器网络节点在电量不足时
节点上的有源器件不能稳定工作。基于网络节点中的CC2430/31芯片
在Zig Bee协议栈中添加定时功能
使以电池供电的节点能够周期性地采样电池电压并进行判断
当电压低于预先设定的报警低限时
利用LED灯的闪烁进行报警。同时该节点进入非正常工作状态
断开与网络的联系
以保证其他节点交互信息的可靠性。
Abstract
When the electricity shortage appears on the wireless sensor node powered by the batteries
the active device can’t work stablely.Based on CC2430/31 chip in the network nodes
timing function is added in the Zig Bee protocol stack to make batteries-powered node periodically sampling battery voltage and judge.When the voltage is lower than the default alarm low limit
LED light will flink to alarm.At the same time
the node will not communicate with network to ensure the reliability of the mutual information of other nodes.