【摘要】 针对太阳能的特点和锂电池的特性,设计基于MC9S12XS128和LTC6803-4的WSN节点光伏充电管理系统,设计锂电池组充放电、温度检测、电压采集和均衡控制等硬件电路,编写相应的底层软件,将电池电压、充放电电流、电池温度的采样值与实际值进行比较,验证采样值的准确性,同时分析均衡控制的效果.实验结果表明:设计的光伏充电管理系统运行安全、可靠,能为WSN节点提供稳定的能量来源.更多还原

【Abstract】 In view of the features of solar power and the characteristic of lithium battery,the photovoltaic charging management system of WSN nodes was designed on basis of MC9S12XS128 and LTC6803-4.And then the hardware circuit diagram of the lithium batteries group charge and discharge,temperature detection,voltage collection,and equalization control was designed,while at the same time,the relative underlying software was programmed to compare the battery voltage,charge and discharge current,battery temperature sample value with the actual value,verify the accuracy of sampling values and analyze the effect of balanced control.It was proved that this photovoltaic charging management system designed in this paper was safe and reliable and provided a stable source of energy for WSN nodes.更多还原