基于物联网和PLC的中央空调节能监控系统设计

Design of central air conditioning energy saving monitoring system based on IoT and PLC

结合中央空调的运行特点及其控制要求,该文研制了一套基于物联网和PLC的中央空调节能监控系统。该系统采用可编程逻辑控制器(PLC),以工业以太网络作为PLC与触摸屏的数据交换“桥梁”,从而实现了中央空调本地的数据采集和控制。同时,通过物联网无线数据传输单元(DTU)和4G移动通讯网络将采集来的工艺参数远传至能源监测管理平台进行数据实时计算与解析。现场实际运行效果表明,基于物联网和PLC的中央空调节能监控系统在能够保证用户室内环境温度舒适度的前提下,还可以大幅度地提高系统自动化水平且显著地降低能源消耗。

Combining operating characteristics and control requirements of the central air conditioning,we developed a central air conditioning energy saving monitoring system based on IoT the and PLC.And,we choose programmable logic controller as control computer,using industrial Ethernet as the data exchange"bridge"between PLC and touch screen,to realize the local data collection and control of the central air conditioning.At the same time,the collected process parameters are transmitted to the energy monitoring management platform through the wireless data transmission unit(DTU)and 4G mobile communication network for real-time data calculation and analysis.The actual operating result show that the central air conditioning energy saving monitoring system based on IoT and PLC not only improve the level of the user's indoor environment temperature comfort,but also significantly reduce energy consumption.