基于CAN总线的锂离子电池测试系统

Testing system of lithium battery based on CAN bus

锂离子蓄电池是在20世纪90年代初发展起来的先进蓄电池,它具有电压高、比能量大、寿命长、无记忆效应等特点.控制器局域网CAN(controller area network)由于具有抗干扰性强、使用可靠等优点,目前已被广泛应用到工业控制领域.本系统以CAN总线进行数据传递,使用一台上位机和多个下位机对锂离子电池进行电压、电流、容量等测试.实践证明该系统具有实时性高、性能可靠、传输距离远、抗干扰性强等特点.

Lithium-ion batteries are advanced ones which were developed in the early 1990s, and they have the following characterstics：high voltage, high specific energy, long cycle life and no memory effect. Controller LAN CAN （Controller Area Network） has been widely used in industrial control as a result of high immunity to interference , reliable to use. It uses one plane and a number of places on stage spaces to test voltage,current and capacity of lithium-ion batteries on the basis of transmitting data by using CAN bus. The testing system is proved to be high realtime, reliable, with long transmitting distance and better anti-jamming.