A high-precision online monitoring system for power battery

Battery management system has a very extensive application field. This paper introduces an online system which is available for monitoring electric current, voltage and temperature of power battery group simultaneously. This system adopts the microcontroller and PC as the main controllers, collects the information like voltage, current and temperature of the battery with battery information collection box, and then carries on highly effective analysis of battery parameters by transmitting data to PC through WIFI. In practice it has proved that this system can accurately measure, record and transmit physical parameters such as battery voltage, current and so on, in order to detect and estimate battery status as well as divide batteries into group.