图形化在线建模的OPC UA网关设计  

Design of OPC UA Gateway Based on Graphical Online Modeling

作　　者：苏鑫 李军怀[1] 王怀军[1] 张发存[1] 崔颖安[1] 冯连强[2] SU Xin;LI Jun-Huai;WANG Huai-Jun;ZHANG Fa-Cun;CUI Ying-An;FENG Lian-Qiang(School of Computer Science and Engineering,Xi’an University of Technology,Xi’an 710048,China;China National Heavy Machinery Research Institute Co.Ltd.,Xi’an 710032,China)

机构地区：[1]西安理工大学计算机科学与工程学院,西安710048 [2]中国重型机械研究院股份公司,西安710032

出　　处：《计算机系统应用》2021年第8期96-103,共8页Computer Systems & Applications

基　　金：国家重点研发计划(2018YFB1703000);国家自然科学基金(61971347);陕西省水利厅基金(2020slkj-17);西北生态水力学国家重点实验室科研基金(2019KJCXTD-6);西安市科技计划(2020KJRC0093)。

摘　　要：OPC统一架构(Unified Architecture,UA)已经成为工业4.0的核心通信接口规范,但由于工业领域设备更新缓慢,大量现场设备仍使用传统的通信协议,且设备生产厂家不同,使用的通信协议也可能不同.为了将不同类型的现场设备融入OPC UA架构,克服多种通信协议之间的数据交换壁垒,本文设计了一种支持图形化在线建模的OPC UA网关.网关内部实现了OPC UA服务器,能够将多种通信协议数据连接到OPC UA服务器地址空间的节点上,方便MES和ERP等管理软件进行高效数据访问.同时,为了便于使用者建立OPC UA信息模型以及配置网关数据采集逻辑,设计了一种图形化建模方法.最后,本文通过示例,验证了图形化在线建模网关的可用性.OPC Unified Architecture(UA)has become the core communication interface specification in Industry 4.0.However,due to the slow update of equipment in the industrial field,the traditional communication protocol is still used by a large number of field devices,and distinct communication protocols may be adopted by different equipment manufacturers.An OPC UA gateway is designed to integrate different types of field devices into OPC UA architecture,and it can break the data exchange barriers between communication protocols.An OPC UA server is implemented in the gateway,which can connect communication protocol data to the nodes in address space of the server.The OPC UA server also enables MES and ERP management software to access data efficiently.At the same time,a graphical modeling method is designed to assist users in establishing an OPC UA information model and configuring gateway data acquisition logic.Finally,an example is given to verify the usability of the gateway for graphical online modeling.

关 键 词：OPC UA 数据采集 信息模型 图形化建模 协议转换 

分 类 号：TN915.05[电子电信—通信与信息系统]