Design And Implementation Of The Battery Supervising And Measuring System

The system of battery supervising and measuring synthesizes many advanced technologies, such as power electronics, small signal measurement, phase-sensitive detection, lock-in amplification, computer control and so on. As the Motorola 32-bit single chip microcomputer, MC68332 is used as the core of control. Use a large size LCD screen to view interface. The design of SCM's anti-jamming, the arithmetic of digital-filtering and the circuit of voltage-frequency transforming are introduced as anti-jamming measures. This measurement instrument has a lot of advantages, such as accurate measurement, powerful functions, easy to operate, Chinese view and so on. Besides, it has also some advantages, such as good performance of anti-jamming, high reliability and so on.Analyze the performance parameters and the interrelation of the sealed maintenance-free lead acid storage battery in detail, and give the coherent performance curve of battery. It is also discussed about how to activate the invalid battery and some noticeable problems in practice.Measure the parameters of battery, including voltage, current, temperature and internal resistance, by using distributed control method and modularizing design. Analyze the measurement methods of the internal resistance of battery in detail, and compare the specification of direct current way and alternating current way. Give the method of the internal resistance of battery. Using the four terminal methods, remove effectively the influence from the measurement line. Give the relation curve of the internal resistance and capacity. Measure the internal resistance of battery on line and calculate the remainder capacity of battery. Demonstrate the principle of measuring the internal resistance of battery and the invalidity of battery. According to all kinds of parameters of secondary battery, assess the performance of battery by using rational calculation method. It can view the curve of battery performance and trend line. Having good fault-alarm, protection circuit and maintenance program, enhance the intelligence and reliability of system. Design some coherent graph of program and flow chart of soft in detail. Introduce the intellectual manage of storage battery.