Design of greenhouse Environment Monitoring system based on single Chip Microcomputer
WU Bo;Anhui Institute of Information Technology;
The current greenhouse environment monitoring system is not centralized, temperature and humidity control accuracy isinsufficient, automation level is limited. The system adopts AT89C51 single chip computer and AM2301 temperature and humiditysensor to constitute the lower computer unit. While collecting the temperature and humidity data in real time, the data is transmit-ted to the interface of the man-machine interaction system of PC computer through RS-485 communication interface for central-ized monitoring. The temperature and humidity parameters are accurately measured by the temperature and humidity sensor, andthe data are recorded and stored. By comparing with the preset parameters, the system gives an alarm when the temperature and hu-midity parameters are higher than the preset range. The user can set the upper and lower limits of temperature and humidity in theupper computer interface, and the system automatically writes the preset value into the AM2301 temperature and humidity sensorto achieve the purpose of monitoring.
【CateGory Index】： TP277;TP368.1