基于双线以太网的Modbus TCP-MQTT协议转换网关设计

Development of Modbus TCP-MQTT protocol transfer gateway based on single pair Ethernet

随着工业互联网的发展,双线以太网凭借其数据传输和远程供电能力、高效利用空间和节约成本的特点被广泛应用在工业物联和智能制造领域。设计了一种双线以太网协议转换网关,将双线以太网Modbus TCP协议转换为MQTT协议,并将数据发送到阿里云物联网平台。首先介绍了双线以太网协议转换网关系统使用的硬件和设计的软件构架,再通过搭建实验环境并部署EdgeX Foundry平台验证其可行性。测试结果表明,所设计双线以太网网关的硬件能够进行数据传输,双线以太网网口在不同的带宽和长度的条件下能达到理论的传输速率,双线以太网网关的软件能正常接收Modbus TCP数据并实现MQTT通信。

With the development of the industrial Internet,single pair Ethernet is widely used in the field of industrial IoT and in-telligent manufacturing with its data transmission and remote power supply capabilities,efficient use of space and cost savings.The single pair Ethernet protocol conversion gateway designed in this paper converts the single pair Ethernet Modbus TCP proto-col to MQTT protocol,and sends the data to Ali Cloud Internet of Things platform.This paper first introduces the hardware and software architecture of the single pair Ethernet protocol conversion gateway system,and then verifies its feasibility by setting up the experimental environment and deploying the EdgeX Foundry platform.The test results show that the hardware of the single pair Ethernet gateway designed in this paper can carry out data transmission,the single pair Ethernet network port can reach the theoretical transmission rate under different bandwidth and length conditions,and the software of the single pair Ethernet gateway can receive Modbus TCP data normally and realize MQTT communication.