Gas chamber regulation monitoring system with USB and RS232 interface
WANG Quanhui, ZHENG Fenglong, DING Junfeng, QI Junqing, LIU Jie
(College of Information and Electrical Engineering， Shandong University of Science and Technology， Qingdao 266510， China)
Abstract: In order to accurately research environment factors on the effects of crop growth, a kind of the detection and control system of gas chamber automatically adjusting the CO2 concentration was designed. The system can collect and control the data of oxygen, carbon dioxide in gas chamber and the pressure of the carbon dioxide generator. And the system can realtimely display gas data with a 12846 LCD. According to artificially setting gas content parameters, the system can automatic control CO2 generator of gas content to maintain the gas chamber. Results show that the system can store data and read by Udisk directly. When communicating with PC, it can display and store data in PC.
Key words: data acquisition and processing; gas chamber regulation and control system; STC89C516RD+; USB reading