基于OPC UA的双模网关设计  

Design of Dual-mode Gateway Based on OPC UA

作　　者：陈文炎 CHEN Wenyan(College of Information Science and Engineering,Ningbo University,Ningbo,Zhejiang 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《无线通信技术》2024年第2期7-12,共6页Wireless Communication Technology

基　　金：国家自然科学基金(U1809203,62071264)。

摘　　要：随着工业物联网的快速发展,设备间的互联和数据交换变得越来越重要。OPC UA作为一种开放、跨平台的工业通信协议,已被广泛采用。本文设计了一款基于OPC UA协议的双模网关。OPC UA的SDK采用开源的open62541框架设计,为了实现可靠数据传输以及与其他基于TCP/IP的系统之间的互操作,同时又能提供实时高效的数据传输,本设计采用基于TCP/IP的C/S架构与基于UDP的Pub/Sub架构相结合的方式,实现不同类别的数据分流传输。为了实现用户程序和设备间的解耦,本设计采用JavaScript对象表示法(JSON)格式的配置文件定义设备信息,网关可通过解析该文件实现动态更新节点和设备信息。最后通过实验验证了所设计的双模网关具有较高的可靠性和实时性,适用于工业物联网中设备间数据交换的应用场景。With the rapid development of IIoT,the exchange and interconnection of data between de⁃vices have become increasingly important.OPC UA,being an open and cross-platform communica⁃tion protocol,has gained widespread adoption.This paper presents the design of a dual-mode gate⁃way based on OPC UA.The OPC UA SDK utilizes the open-source open62541 framework,while the gateway combines the C/S architecture based on TCP/IP with the Pub/Sub architecture based on UDP.This hybrid approach ensures reliable data transmission and seamless integration with other systems using TCP/IP.Moreover,it provides real-time and efficient data transmission,allowing the gateway to handle diverse data splitting requirements.To decouple user programs from devices,the gateway utilizes a configuration file in JavaScript Object Notation(JSON)format to define device in⁃formation.Additionally,it supports dynamic updating of node and device information by parsing the configuration file.

关 键 词：OPC UA 工业网关 open62541 双模网关 实时LINUX 

分 类 号：TN722[电子电信—电路与系统]