摘要
对于无线传感器网络节点而言,电源是系统的关键部分之一。在此提出一种收集环境中太阳能为传感器节点供能的电源系统。该系统采用了高效安全的充电控制技术,独特的电池电压监测电路,以及低功耗的DC-DC转换电路。通过实验验证,基于此太阳能电源的传感器节点功耗动态调整节性能好,生存周期显著增加。该系统可应用于各种户外监测的节点,如环境监测,精细农业,森林防火等。
The power supply is one of the crucial components for the wireless sensor network node. A power system of sensor node based on the solar supply is presented, which uses safe and efficient charge control technology, power voltage scaling circuit and low-power DC-I）C switching circuit. The result of experimentation shows that the lifetime of the sensor node can be widely extended, because of adopted the dynamic adjustment of node＇s power. It can be applied to various outdoor monitoring nodes, such as environmental monitoring, precision agriculture, fire prevention, etc.
出处
《现代电子技术》
2011年第6期199-202,共4页
Modern Electronics Technique
