Field device information management system based on semantics and OPC UA

Abstract

The invention relates to a field device information management system based on semantics and OPC UA and belongs to the combined field of the semantic network and the industrial Internet of things. Theintegral configuration of the system comprises a sensing layer, a network layer, a semantic layer and an application layer, wherein the sensing layer comprises a bottom field device and an OPC UA server, the network layer comprises each network system accessed by the OPC UA, the semantic layer comprises an OPC UA device information acquisition end, a device information management domain knowledgeontology model, a device information semantic annotation module, a semantic reasoning and query module, an ontology database and a semantic rule file, and the application layer comprises a device running state management module, a device operator management module, a device machine account management module, a device spare part management module, a device maintenance management module and a device repair management module. The management system is advantaged in that semantic integration of the heterogeneous device information is realized, through semantic reasoning and query, the relatively rich semantic knowledge in the field can be acquired, and needs of each functional module of the system are satisfied.

Description

Technical field [0001] The invention belongs to the combined field of semantic web and industrial Internet of things, and relates to a field equipment information management system based on semantics and OPCUA. Background technique [0002] In traditional industrial process control, in order to collect the status of the underlying equipment, it is often necessary to develop a corresponding driver for each type of field device to access this type of equipment. Different types of equipment use different drivers. Enterprises use a wide variety of field devices, which cannot meet actual work needs, which not only makes the development of the entire system complicated and cumbersome, but also prolongs the development cycle and reduces development efficiency. Therefore, it is necessary to establish a set of data exchange standards accepted by the industry to standardize the development of drivers to solve this bottleneck problem in the development. [0003] In manufacturing resources, e...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a field device information management system based on semantics and OPCUA, to solve the lack of interoperability in the data exchange process, the lack of a unified standard interface between various devices at the factory level, in the There is heterogeneity between software and hardware, resulting in the formation of "information islands" between system information and users; delays and errors in equipment production status information; complex association tables such as equipment basic information, maintenance record information, and repair record information design problem

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