Abstract

The lead-acid storage battery group is the drive power supply or contingency power

supply for many

traffic tools ． So the performance of the storage battery group is directly

related to the normal running of

traffic tools．It is necessary to measure batteries’ parameters

accurately and frequently in order to enhance their lives，run them reliably and ensure the
batteries in the optimal working states ． In the past the testing of the storage batteries’
parameters was completed artificially．However this method has many disadvantages．It’s
slow to test batteries artificially，the measurement precision is low，and the surroundings of
storage battery cabin are very harmful to people’s health．So it’s very important to design a
device which can test batteries automatically．

Because suffer environmental restrictions, request system, convenient and practical Jane

small on a single battery for repair and routine maintenance of the design, so the battery
voltage is the system test all the way. Monitoring system based on AT89C51, its work fine
performance, use agile, low power consumption, is a high cost performance chip. Data
collection after the completion of the ADC0809 voltage signal selection in frequency-field on
LCD1602, measurement data display, through MAX232 level measured transform circuit will
the voltage upload data PC computer display, storage.

Key Words ： Single

—chip computer ； Lead-acid battery ； Intellectual detection

system；Display; communication