Development Of Intelligent Greenhouse Control System Based On89C52

Research and development of this system is mainly aimed at the greenhousegreenhouse temperature and humidity control function. In order to realize the abovefunctions, special research and development of intelligent greenhouse control systembased on89C52.The main research contents are based on object detection and control, used toconstruct temperature indoor parameter control mathematical model of PID controlalgorithm, and the simulation testing software; according to influence of outsideenvironment on crop growth, to choose the two part of the crop environment ofgreenhouse control system and the automatic monitoring system; research anddevelopment based on Intelligent Greenhouse Control System of89C52single chipmicrocomputer.89C52microcontroller, sensor, transducer is the main part of the hardware designused, they can be of various parameters in the greenhouse humidity, temperature,induction switch inside the wet curtain window, side windows and skylights, control thecirculating fan, a wet curtain pumps and other equipment. The user software andmonitor software is mainly used in the design of software.The main research methods are the use of statistics, the statistical analysis of datafrom the useful aspects of collection, and then calculated numerically for greenhousecrop growth of humidity, temperature, co2concentration and so on variousenvironmental factors; by using configuration software monitoring, the variousenvironmental factors for crop growth on a practical experiment effects of greenhouse(parameter co2concentration, humidity, temperature experiment); the optimal controlscheme is to determine the various mathematical models of several experimentalsimulation software, and use the improved PID control algorithm to determine therelevant parameters, the simulation results are compared.The system in Weifang Hengyuan gardening Co., greenhouses, through induction,hardware software to adjust the satisfied effect. And the system of automatictemperature control function, cost savings for the company, has brought great economicbenefits. This system is stable, simple operation, high reliability. Intelligent greenhousecontrol system in this research more practical, function is not a lot of very powerful, butis relatively large.