智能化温室群分布式控制系统的研制

系统由一台上位主控计算机、RS-485通讯网络和多台下位机组成。下位机采用STD总线结构组成单片机测控系统。完成直接的测控任务；上位机通过通讯网络获取各个下位机的测控数据，或向其发送控制参数，以完成对大型多连栋温室或日光温室群的集中监控。下位机采用“光照相关的多因子模糊控制方法”实现了较理想的多因子环境控制。上位机则集成有简单的专家系统。可以提供推荐控制参数。实际运行表明，该系统使用方便、控制效果较好。

Research and Development of Intelligent Distributed Control System for Greenhouses

The system consists of a master computer and a RS-485 communication network as well as several subordinate micro-controller application systems, and can actualize centralized monitoring of the greenhouses. The subordinate has a STD bus-organization, performs measurement and controlling tasks independently according to its control parameters, and stores data records of this course. The master can read the data records from the subordinates and modify their control parameters through the RS-485 networks. The subordinate uses a multivariable fuzzy control method correlated with the illumination, and the master has a integrated expert system in the control program, it can give control parameters recommended by the agricultural experts. The system has been proved to be convenient and effective by the practical running. [