This text introduces an equipment and method which can test the voltage on many groups of lead accumulator as well as conveying the test results through the transporation channel. This design is a part of a battery administrative system.
This method is to model the equipment and divide the groups of accumulator for checking. So ,we can ues it conviently in many accumulators’ tests. This text starts with the principle of the test as well as the utilization, introduced a systematic principle and the design of the hardware and also the design of the software in detail, Furthermore this text provides a systematic principle picture , main circuit diagram and the result of the test debug. On the basis of the one-chip computer of MOTOROLA Company MC9S12A64CPV type, and DS2438 chip, adoptting485 commonly used communication of industry through the cooperation of the software and hardware , we have realized the design function of the whole system.
Experimental result indicates it can realize the voltage measure function and can up to the 1% of the requirement on the accuracy.
Key word： Many measuring of voltage of group battery , module ,
DS2438 , 485 communication