摘要
中央空调的温湿度检测系统是空调系统的最基本最重要的控制系统,它的发展必将影响到中央空调性能的发展。文中主要分析并设计了温湿度数据采集电路,单总线接口电路以及液晶显示电路,采用MAX232与现场PC机通信。整个系统的控制器选用单片机AT89S52,温度传感器选用DS2438,湿度传感器选用HIH-4000。在软件设计部分,采用C51编写程序来实现系统各个功能模块的设计。整个系统具有实时性,快速性,稳定性、精确性等优点。
The central air conditioning＇s humiture examination system is air-conditioning system＇s most basic and important control system,its development will certainly to affect the central air conditioning performance development.This article mainly analyzed and has designed the humiture data acquisition electric circuit,the single bus interface electric circuit as well as the liquid crystal display electric circuit,used MAX232 and the scene PC machine correspondence.Overall system＇s controller selects monolithic integrated circuit AT89S52,the temperature sensor selects DS2438,the humidity sensor selects HIH-4000.In the software design part,uses the C51 write program to realize the system each functional module design.The overall system has timeliness,the rapidity,merits and so on stability,accuracy.
出处
《电子设计工程》
2012年第10期94-96,共3页
Electronic Design Engineering
