郑州大学学报（理学版）

为满足现代温室环境远程实时监测、环境调控的要求,基于农业物联网的基本框架,设计了嵌入式微处理器、无线传感器网络和Internet网络技术融为一体的温室环境测控系统.系统分为温室现场测控层和远程监控层.现场测控层基于无线传感器网络获取温室内外环境信息,并通过网络摄像头实现实时视频监测;远程监控层置入滞环控制、模糊控制等多种控制算法,并利用Java Script和AJAX等技术为用户提供HTML网页的交互界面,实现温室环境远程、实时、自动监控.实验结果表明,系统可实时、准确采集环境参数,数据丢包率仅为4.8%,实现实时、可靠的温室环境监测,可满足农业生产的基本要求.

Greenhouse environment measuring control system was put forward integrated with embedded microcontroller processor technology,wireless sensor network technology and internet network technology for the need of remote real-time monitoring and the intelligent control. The system was divided into two parts: the local measurement-control layer and the remote monitor layer. The first layer was consisted of wireless sensor network,actuators and a webcam in the greenhouse and a wireless weather station outside. The remote monitor layer was set up based on embedded microprocessor. The data was analyzed and the control decision was made through auto-control or manual control in this layer. Besides,the function of remote monitoring and the function of accessing the webcam were also realized to enhance the friendliness of system through HTML,CGI and AJAX technology. In auto-control mode,there were various control algorithms equipped for the user to pick from through HTML,including the hysteresis control algorithm,fuzzy control algorithm,and so on. Implementation results indicated that the system could realize the accurate real-time acquisition and intelligent control of greenhouse environment.