基于WiFi和MQTT的建筑能耗监控系统设计

Design of building energy consumption monitoring system based on WiFi and MQTT

针对公共建筑能耗管理系统缺乏在线控制和数据通信不稳定的问题,文中设计一种基于WiFi通信方式和MQTT协议的建筑能耗监控系统。该系统由公共建筑侧、云服务器和监控侧三部分组成,通过设计专用能耗监控DDC采集建筑现场的电能表、水表和燃气表所计量的能耗数据,并通过WiFi将数据上传至云服务器。采用B/S网络架构设计云服务器,以实现监控系统的跨平台运行,从而提高系统的灵活性。监控侧网页通过Flask连接云服务器,实时显示建筑能耗数据和耗能设备的工作状态,工作人员可通过网页在线控制专用DDC实现对耗能设备的远程管理。系统通信采用MQTT协议,可有效降低通信开销,提高数据通信的稳定性。测试结果表明,文中系统能够高效采集建筑能耗数据,稳定控制耗能设备,具有较高的应用价值。

In allusion to the lack of on-line control and unstable data communication in the energy consumption management system of public buildings,a building energy consumption monitoring system based on WiFi communication mode and MQTT protocol is designed. The system is composed of three parts:the public building side,cloud server and monitoring side. The dedicated energy consumption monitoring DDC is designed to collect the energy consumption data measured by the electricity meters,water meters and gas meters at the building sites,and upload the data to the cloud server by WiFi. The B/S network architecture is used to design cloud sever to realize the cross-platform operation of the monitoring system,so as to improve the system flexibility. The monitoring side web page is connected to the cloud server by means of Flask to display the building energy consumption data and the working status of energy consuming equipment in real time. The staff can realize the remote management of energy consuming equipment by controlling the dedicated DDC on line by means of the web page. The MQTT protocol is adopted for system communication,which can effectively reduce the communication overhead and improve the stability of data communication. The testing results show that the system can collect building energy consumption data efficiently and control energy consumption equipment stably,and has a certain application value.