Research And Implementation On Detection Technology For Environment Parameters In Greenhouse Group

Automatic detection and control technology is the core content of modern facility of agricultural environmental control, however, nowadays, automatic monitored control system is still remain in the stage of application or test of agricultural demonstration park. what’s more, the collection of parameter of ecological environment of facilities of mountainous rural area and artificial intelligent management continue to use manual approach, which is low accuracy, high labor intensity and cannot get reasonable using reshwater resources, as a result, the production and quality of agricultural products is affected. Thus, we develop the monitoring networks of ecological environment of agricultural facilities which is based on intelligence sensor that have both wired and wireless communication module. The monitoring networks of ecological environment of agricultural facilities is highly costThe system consists of detecting instrument, communication systems and supervision management system. The detecting instrument is the field environment which will be detected in the whole supervision system, communication systems is the junction of wired and wireless communications, is the central node of the system, and the supervision management system is the place that the information flow of the entire network system gathered. The istrumentation can be used to simultaneously detect multiple circumstances parameter, such as, temperature, humidity, the content of carbon dioxide, and the content of soil moisture and so on. The instrumentation have both RS-485 wire communication modul and nRF905 wireless communication module, and reliable transmission of acquisition parameters can achieve by one of two module. For the group detection network of greenhouse, taking PC as upper computer, the instrument that serves as both the instrumentation and relay node by wire communication module can achieve long-distance reliable-transmission, and display, alarm and processing is by the upper machine in ways of image and effective. Relay node and the nearby detection node use wireless communication to achieve 100 m of reliable data transmission.The single-chip microcomputer software is wrote by C51 and is developed in in Keil uVISION4 IDE. The supervision management software of upper computer is developed using Kingview 6.51. Through the design of the modular and master-slave mode, the software met the request of Real-time monitoring and alarming for hardware system.The running and testing result indicated that the performance indicators of the system have reached the application requirements. And the system has many features including reliable work, easy management, flexible composition, and cost effectiveand so on. And it has very high value and vast development foreground of application.