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J. Hefei Univ. Tech. (Nat. Sci.)

合肥工业大学学报(自然科学版)

JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE)

Competent Authorities: Ministry of Education of the People's Republic of China

Sponsor by: Hefei University of Technology

ISSN 1000-1646, CN 34-1001/N

Research on the architecture of distributed data acquisition and processing system based on OPC UA

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基于 OPC UA 的分布式数据采集处理系统架构研究

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Aug.2024, Vol.47 No.8: 1028-1034

DOI: 10.3969/j.issn.1003-5060.2024.08.004

Authors

HU Jing, BAI Chen, ZHANG Xi, GE Maogen

(School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: With the continuous deepening of the integration of the Internet of Things and the Internet, the interconnection between the perception layer and the application layer is increasingly required. In order to address the deficiencies of the existing data collection system in terms of specifications, extensibility and adaptability, this paper puts forward a distributed data acquisition and processing system architecture based on the object linking and embedding for process control unified architecture (OPC UA) protocol. Firstly, each module of the data acquisition and processing system is decoupled and reorganized, and the hardware and software architectures of this system are introduced. Then, an improved load balancing algorithm for OPC UA distributed subscription is presented according to the load specificity in publish/subscribe mode. Finally, this architecture is verified in an example of a vehicle enterprise. The results show that the distributed data acquisition and processing system based on OPC UA has good data acquisition and processing effect, which proves the feasibility and validity of the system architecture.

Keywords: system architecture; distributed; object linking and embedding for process control unified architecture (OPC UA) protocol; load balancing

作者信息

扈静，柏晨，张玺，葛茂根

（合肥工业大学机械工程学院，安徽合肥230009）

摘要和关键词

摘要: 随着物联网与互联网融合的不断深化,感知层与应用层之间的互联互通要求不断提高。针对现有数据采集系统存在的规范性、扩展性和适应性不足的问题,文章提出一套基于对象连接与嵌入过程控制统一架构(object linking and embedding for process control unified architecture, OPC UA)协议的分布式数据采集处理系统架构。对数据采集处理系统各个模块进行功能解耦和架构重组,分别介绍该系统硬件和软件架构;针对发布订阅模式下负载的特异性,提出一种改进的适用于OPC UA分布式订阅的负载均衡算法;最后在某车企实例验证该系统架构。结果表明,基于OPC UA的分布式数据采集处理系统数据采集处理效果良好,证明了该系统架构的可行性及有效性。

关键词: 系统架构；分布式；基于对象连接与嵌入过程控制统一架构(OPC UA)协议；负载均衡

Funding

安徽省科技攻关计划资助项目（JZ2016AKKG0837）

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