中国农业机械化科学研究院集团有限公司 主管

北京卓众出版有限公司 主办

温室大棚卷帘机多路优先级控制系统

Multi-channel Priority Control System for Greenhouse Rolling Machine

  • 摘要: 为解决温室卷帘机控制方式单一,提高卷帘机的管理效率,该文设计了一套基于单片机的卷帘机多路优先级控制系统。该系统以STC15W404AS单片机作为硬件终端的主控芯片,应用RXB8超外差接收模块接收遥控信号,通过GPRS无线模块实现与远程服务器的通信,采用优先级决策电路对手动按键控制信号、无线遥控信号、限位控制信号和远程服务器控制信号进行优先级处理,从而实现对卷帘机的多路优先级控制。试验结果显示,系统优先级响应稳定迅速,硬件终端对远程服务器的命令响应时间为1.7 s,无线遥控和远程服务器控制的数据传输丢包率<4.5%,远程服务器软件可稳定完成卷帘机的远程监控。该系统不仅可以实现卷帘机的多路优先级控制,而且可有效地满足温室卷帘机智能管理使用需求。

     

    Abstract: In the daily management of the greenhouse rolling machine,there is frequent a low working efficiency and an emergency cannot be solved due to its single control mode.A multi-channel priority control system of greenhouse rolling machine based on singlechip was designed.The system consisted of hardware terminal and remote server.The hardware terminal utilized STC15W404AS controller,using RXB8 superheterodyne receiving module to get the signal from the remote controller.GPRS module was applied to realize communication between hardware terminal and remote server.The system contained four control signals:manual key control,wireless remote control,limit switch control and remote server control.Processing signals was done with priority decision circuit so as to achieve priority control of the rolling machine.Experiment results demonstrated that response time of remote server command was 1.7 s and the packet loss rate of wireless remote control and remote server control was less than 4.5%.The remote sever software achieved remote monitor and control of rolling machine stably and rapidly.Moreover,this system could not only realize multi-channel priority control of rolling machine,but also meet requirement of intelligent management of greenhouse rolling machine effectively.

     

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