Production line edge equipment longitudinal integrated gateway based on OPC UA and implementation method thereof

Abstract

The invention discloses a production line edge equipment longitudinal integrated gateway based on OPC UA and an implementation method thereof, and the method comprises the steps: building data communication with equipment based on a special protocol supported by an equipment supplier, obtaining operation data, carrying out edge computing, and storing original data and a preprocessing result; carrying out information modeling on production line edge equipment based on OPC UA, carrying out association mapping on model nodes, underlying data and interfaces, constructing an OPC UA server, and unifying equipment data interfaces; realizing feedback control over the edge equipment through parameter writing. The defects that a traditional gateway can only achieve one-way flow of data, and an upper-layer application result cannot be correctly fed back to the edge equipment in time are effectively overcome; besides, the gateway opens a plurality of protocol interfaces such as MQTT, TCP / IP and UDP to the outside, supports secondary development of users, ensures the expandability of the gateway, and has important practical significance for longitudinal integration of production line equipmentand closed-loop control of a production line.

Description

technical field [0001] The invention belongs to the technical field of networking and communication of edge devices in smart factories, and in particular relates to an OPC UA-based vertical integration gateway for edge devices of a production line and an implementation method thereof. Background technique [0002] During the processing of complex parts, the production line equipment generates a large amount of manufacturing data all the time. These data contain a lot of information about the equipment processing process, which can effectively reflect the dynamic change law of the production line precision. However, due to the many types of production line equipment and various communication protocols, the physical system and the information system are severely separated, and the manufacturing data is not shared. Data-driven processing line precision control is difficult to achieve. Therefore, how to unify the data interface of the edge equipment of the production line, and t...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an OPCUA-based vertical integration gateway of production line edge equipment and its implementation method to unify the data communication protocol of edge equipment and solve the problem of lack of sharing of production and manufacturing data in view of the above-mentioned deficiencies in the prior art , realize the bidirectional flow of data and the closed-loop control of the production line, and improve the flexibility and scalability of edge device data interaction

Images