基于AT89S52单片机的多功能智能温室测控系统

Multi-Function and Intelligent Measuring and Controlling System for Greenhouse Based on AT89S52 Single-chip Microcomputer

介绍了一种基于AT89S52单片机对温室大棚内空气温湿度、土壤湿度、CO2浓度和光照度进行测控的多功能智能系统,阐述了系统硬件部分的总体设计方案、各元器件的选型、对温室内参数的测控原理和元器件间的连接电路,并给出了系统下位机主程序的流程图、PID控制算法及基于Delphi7.0的上位机操作界面。通过控制不同时期作物生长所需要的最佳环境参数,系统实现了温室大棚的科学、高效、智能化的管理。

The authors introduce a multi-function and intelligent system to measure and control temperature and humidity of atmosphere,humidity of soil,concentration of carbon dioxide and intensity of illumination in greenhouse based on AT89S52 single-chip microcomputer.Total design scheme of the hardware system,style of each organ,measuring and controlling theory of parameters in greenhouse and junction circuit between parameters are presented,and flow chart of single-chip microcomputer main procedure,controlling and algorithm of PID and operation control panel based on Delphi7.0 of computer are provided.Through the control of the best environment parameter in different times to crops,the system realizes the scientific,highly effective,intelligent management to greenhouse.