无线传感器网络太阳能利用探索与研究

Exploration and Research on Solar Energy Utilization in Wireless Sensor Networks

无线传感器网络(Wireless Sensor Network,WSN)所需能源往往利用太阳能提供,通常将太阳能储存在电池或电容器中,在夜间没有太阳能时使用。无线传感器网络中每个微小节点的使用寿命取决于储能设备的剩余能量,而剩余能量随着获取环境能量和消耗能量动态改变。该研究剩余能量感知和预测传感器节点正常工作所需能量,如果节点收集能量多余剩余能量,则感知能量数据与其他节点数据聚合压缩并传输。否则,节点会继续感知数据,但会关闭无线通信以降低能耗。通过仿真比较该方案减少了因能量不足而被迫断电的节点数量,以便更多的数据到达汇聚节点。

A node in a solar wireless sensor network(WSN)collects energy when the sun shines and stores it in a battery or capacitor for use at night when there is no solar energy.Each tiny node in a wireless sensor network periodically determines its ener⁃gy budget,which takes into account its remaining energy as well as its possible acquisition and consumption.If it wants more energy than it can store,the data it senses is aggregated with data from other nodes,compressed and transmitted.Otherwise,the nodes con⁃tinue to sense the data,but turn off wireless communication to reduce power consumption.Through simulation comparison,the scheme reduces the number of nodes forced to power off due to insufficient energy,so that more data can reach the sink node.