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Position: Home > Articles > Enclosed LED Plant Foctory Environment Monitoring and Controlling System Based on Zig Bee Journal of Agricultural Mechanization Research 2015 (5) 75-81

基于ZigBee的密闭式LED植物工厂监控系统

作  者：
刘彤;李尧;贺宏伟;马建设
单  位：
清华大学深圳研究生院/深圳市LED封装重点实验室
关键词：
植物工厂;Zig Bee;LED;图像传输;监控系统
摘  要：
利用无线传感网络技术、LED控制技术以及WEB技术,设计并实现了基于Zig Bee的密闭式LED植物工厂监控系统。本系统由3部分组成,包括以工控机为上位机的监控中心、基于Zig Bee的数据传输网络、基于RS4 8 5总线的环境数据采集。上位机运行基于tomcat的服务器程序,周期性地发送控制和采集命令,存储和显示相关环境参数信息,并提供远程用户浏览器访问;Zig Bee无线网络提供数据的透明传输,通过设计Zig Bee应用层协议控制数据包的传输目的地址,确保数据传输的可靠性和准确性;环境数据采集部分通过RS485网络采集和控制环境参数,如CO2浓度、温湿度、LED光照强度等。本文实现的基于Zig Bee的密闭式LED植物工厂环境监控系统,提供了一种低成本、低能耗、高效率并简单实用的植物工厂环境监控的解决方案。
译  名：
Enclosed LED Plant Foctory Environment Monitoring and Controlling System Based on Zig Bee
作  者：
Liu Tong;Li Yao;He Hongwei;Ma Jianshe;Graduate School/Shenzhen Key Laboratory of LED,Tsinghua University;
关键词：
plant factory;;Zig Bee;;LED;;image transmitting;;monitoring and controlling system
摘  要：
In this paper,we implemented a wireless control system for a plant factory.The system is self-organizing,easy-install,and extensible to meet the requirement of large plant factories.It is based on a three-layer network structure,with a surveillance center,network of data transmit based on Zig Bee protocol,and data acquisition and control based on RS485 network.The surveillance center consists of an industrial control computer(IPC) running a server / client application that can send and receive predefined data packet periodicity.The client application is a web application,which can be visited either locally or remotely by users with mobile devices to monitor the system.The network of data transmit based on Zig Bee protocol consists of three logic device,that is,the coordinator,the router and the end device.The coordinator is responsible for setting up Zig Bee network and permitting others to join in automatically,providing broadcast,multi-cast,unicast of packet and transmitting packet as a gateway node between IPC and wireless network.Router expands covering area of wireless signal,and transfer the packet from the end device to the coordinator.The Zig Bee network guarantees that if one expands the plant factory by adding planting equipments or planting areas,the newly installed equipment will be automatically added to the control network after refreshing the server-side application without cable connection or adjustment on site,which simplifies the installation process of a large scale plant factory greatly.The end device plays an import role in Zig Bee network and data acquisition subsystem.It is a host device of the RS485 network,controlling the light quality control subsystem,nutrient cycling subsystem,and air flow subsystem,and monitors the sensor data including the humidity and temperature sensors,carbon dioxide density sensors,Ec and Ph detectors,and camera modules.The camera modules are used to monitor the growth of the plant by sampling the image with a fixed period and transmitting to the IPC server for image process and display.

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