应用中断方式计数的数据采集系统设计

Design of Data Acquisition System by Interruption

1张家口蔚县市政工程公司;2河北建筑工程学院摘要近年来,水表、电表及煤气表(简称三表)的数据采集系统在智能楼宇中得到了广泛的应用.针对应用中出现的数据采集准确度低的问题,通过对传统的采集方式进行分析,提出了采用8259A中断控制器配合单片机采集数据的思想.设计了一种新型的数据采集系统,给出了硬件电路框图和主要软件流程图.实验证明,这种采集方式采集数据的准确度大大提高.

Recently, data acquisition system about water meter,electrical meter and gas meter （three-meter for short） is widely used in intelligent buildings. Because of the inaccuration in application,a method that acquires data using 8259A chips and microcomputer is presented, after analyzing old acquisition method. A new-type system is designed and its hardware circuits diagram and main software flow diagram are described. Experiments prove that the accuration of data acquisition system is greatly improved in application.