基于OPC UA技术的实时数据服务的研究与应用

Research and application of real-time data service based on OPC UA technology

随着工业4.0的深入及新一代信息技术的推广,处于控制层和操作层的数据采集平台逐渐成为实现智能制造的关键指标,而实时数据服务是数据采集平台中最重要的服务之一,是数据采集平台运行的基础。针对离散制造业生产线的柔性要求和信息量的增大、设备/系统种类的多样化的现状,客户不断提出如何实现数据的实时获取、安全存储以及便捷的配置和访问等重要问题。提出了基于OPC UA技术的实时数据服务,不仅解决了数据采集平台中信息模型的一致问题,而且为处于智能制造体系中基础层的数据采集平台提供了一个开放的高效的通信服务。结果表明,该服务具有标准化、便于集成、节省开发成本、符合市场需求等优点。

With the development of INDUSTRIE 4. 0 and the promotion of the new generation of information technology,the data acquisition platform which is in the control layer and operation layer is becoming the key index of intelligent manufacturing,while real-time data service is one of the most important service in data acquisition platform and the foundation of the platform. For the situation that there is increasing flexibility requirements and a amount of information and diversification of equipment system types,customs continually put forward many important problems,such as how to realize the real-time and reliable storage of data collection and convenient configuration and access. The real-time data service based on OPC UA technology presented in this paper not only solves the problem of the consistency of information model in data acquisition platform,but also provides an open and efficient communication service for the data acquisition platform based on the intelligent manufacturing system. The results show that the service has many advantages,such as standardization,convenient for integration,saving development cost and meeting the requirements of the market.