环境监测网络的太阳能供电系统设计

Design of Power Supply System for Farmland Environment Monitoring Network

无线传感器网络在环境监测中应用逐渐推广,稳定的供电系统是监测网络工作的基础。本文介绍了一种基于太阳能和蓄电池的供电系统设计方案,用于解决野外环境中传感器供电的问题。系统采用低功耗的MSP430F6638单片机作为控制器,根据光照强度和蓄电池电压,对充放电进行智能管理。能够在不同充电模式下对蓄电池进行充电,提高充电效率,延长蓄电池使用寿命。测试表明该系统具有体积小、效率高的特点,适用于农业无线环境监测领域。

Wireless sensor network is widely used in farmland environmental monitoring, while the stabilityof power system is the foundation of monitoring network working. A design of power supply system was introduced in this paper. Its purpose was to solve the problem of power supply in the wild. The system was based on solar panel and lead acid battery.A low power consumption microcontroller MSP430F6638 was used as controller. According to the sun-light intensity and voltage of battery, different charging modes were used on charging and discharging to accomplish intelligent power management.This method could improve charging efficiency and prolong battery life.Test showed that the system had the characteristics of small volume, high efficiency, and was suitable for wireless monitoring system for farmland environment.