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基于以太网的集群型工业冷库温度远程监控系统设计

2021-08-21周奎夏振环陈浩珉关士岩

机电工程技术 2021年12期

周奎 夏振环 陈浩珉 关士岩

摘要:为了解决工业冷库集群发展过程中存在的系统集成性低、设备间数据孤立、管理效率低等问题,采用 PLC、触摸屏、变频器、工业交换机等设备,基于 PLC控制技术、以太网通信技术、组态监控技术,开发了工业冷库温度异地远程监控系统,设计了现场冷库的主从站硬件电路、以太网通信系统、组态监控程序等,并进行了系统功能测试。模拟实验结果表明冷库与制冷机组的一对一配置和现场冷库的主从站设计方案实现了冷库温度的便捷控制、设备间的实时数据共享和各个冷库的群控功能。同时,各个冷库监控分站的以太网通信方式,提高了系统实时数据的在线检测速度和管理效率。该系统具有一定的稳定性、可靠性和智能性,实现了工业冷库异地集群远程控制和监测的目的。

关键词:冷库集群;温度控制;以太网通信;组态监控

中图分类号:TP277             文献标志码:A        文章编号:1009-9492(2021)12-0151-04

Design of Remote Temperature Monitoring System for Cluster Industrial Cold Storage Based on Ethernet

Zhou Kui ,Xia Zhenhuan ,Chen Haoming ,Guan Shiyan

(College of Intelligent Manufacturing, Jiangsu Vocational College of Electronic Information, Huai′an, Jiangsu 223003, China)

Abstract: To  solve  the  problems  of low  system  integration,  isolated  data  between  equipment  and  low  management  efficiency  in  the development of industrial cold storage cluster, a remote monitoring system for industrial cold storage temperature was developed by using PLC, touch screen, frequency converter, industrial switch and other equipment based on Ethernet communication technology, PLC control technology and group monitoring technology, the master-slave hardware circuit, Ethernet communication system, configuration monitoring program and so on were designed, and the system function test was carried out. The simulation results show that the one-to-one configuration of cold storage and refrigeration unit  and the master-slave  station  design  scheme of field  cold  storage realize the  convenient control of cold  storage temperature, real-time data sharing between equipment and group control function of each cold storage. At the same time, the Ethernet communication mode of each cold storage monitoring substation improves the online detection speed and management efficiency of the system′s real-time data. The system has certain stability, reliability and intelligence, and realizes the purpose of remote control and monitoring of industrial cold storage cluster in different places.

Key words: cold storage cluster; temperature control; Ethernet communication; configuration monitoring

0 引言

隨着智能制造产业发展,各行业对设备控制的信息化、智能化要求日益提高,工业冷库控制也朝着智能化、集群化方向发展。单一冷库逐渐减少,具有综合功能的冷库越来越多。对于制冷设备来说,智能化控制方式可以实现制冷系统的最佳工作状态和冷库温度的精确控制,从而减小冷库存储环境的波动,有利于冷藏物的良好保存。

目前,我国工业冷库行业受到场地、规模、人员、技术等限制,仍然以半自动控制为主,普遍存在制冷设备控制分散、维护成本大、设备数据不能适时共享、远程监控效率低等问题。……

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