基于MQTT协议的配电物联网云边通信映射研究

Research on cloud-side communication mapping of the distribution internet of things based on MQTT protocol

配电物联网中存在维护困难、监测薄弱、设备互操作性差的问题。基于IEC 61850来规范智能电子设备(IED)的信息模型和和信息交换方法,可以实现设备的互联、互通、即插即用和数据的融合。分析了配电物联网云主站与边设备的通信场景及需求,研究了基于轻量级的MQTT(消息队列遥测传输)通信协议的IEC 61850抽象通信服务映射实现方法,建立了云主站与边设备信息交互的IEC 61850通信子集。搭建了测试平台,通过功能实验和性能实验验证了映射方法的可行性。基于MQTT的IEC 61850通信映射可实现配电物联网云边设备的互联互通。

There are problems in the distribution Internet of Things(D-IoT), such as difficult maintenance, weak monitoring and poor interoperability of devices. Based on IEC 61850, the information model and information exchange method of Intelligent Electronic Devices(IEDs) are standardized. This can realize the interconnection, intercommunication, plug and play and data fusion of devices. This paper analyzes the communication scenarios and requirements between a cloud master station and edge devices in the D-IoT, studies the implementation method of IEC 61850 abstract communication service mapping based on the lightweight MQTT(Message Queuing Telemetry Transport) communication protocol, and establishes a subset of IEC 61850 communication for information interaction between the cloud master station and edge devices. A test platform is built, and the feasibility of the mapping method is verified through functional and performance experiments. The communication mapping of IEC 61850 based on MQTT can realize the interconnection and intercommunication of the cloud master station and edge devices in the D-IoT.