基于单片机和组态王的智能温室大棚集散控制

为解决传统温室大棚在工厂化生产过程中自动化程度较低以及经济效益不高、 维护不便的问题, 提出了 一种基于集散控制理论的自动控制系统。 该系统以 AT89C51 单片机作为下位机对温室大棚内的环境变量数据 进行实时监控, 具备双执行模式的特点, 既可自身处理数据并控制执行器执行操作, 也可将传感器所采集的数 据通过 RS-485 总线上传到上位机进行处理。 上位机采用 KingView 6. 55 软件开发人机界面, 既可对下位机上传 的数据实时存储, 也可对下位机参数进行比对调整, 并且可控制多个下位机, 避免了某个下位机发生故障时对 其他下位机产生影响。 实验表明, 该系统较好地实现了集散控制, 解决了温室大棚自动化程度低和经济效益不 高、 维护不便的问题。

Intelligent Greenhouse Distributed Control System Based on Micro Control System and Kingview

In order to solve the problems of traditional greenhouse,such as low automation level,inconvenient maintenance and low profit,an intelligent greenhouse system is proposed based on distributed control theory.The AT89C51 microcontroller is used as the lower computer,which can constantly monitor greenhouse environmental data.When these sensors gain environmental data,the lower computer can process data and control the whole system.Then these data are transmitted to the host computer for processing through RS-485 bus.A friendly human-computer interaction interface is designed in the host computer by KingView 6.55 software.Through the human-computer interaction interface,the host computer controls several the slave computers to realize different functions including storing data and adjusting the parameters.The fault of one slave computer will not have an effect on others.The experimental results show that the system could achieve a better distribution control performances and solve the above problems.