Research On Data Communication And Application Of Intelligent Manufacturing Workshop Based On OPC UA Architecture

With the improvement of the degree of intelligence in the workshop,the equipment in the workshop has become more diversified.The investment in embedded system equipment such as CNC machine tools,industrial robots,AGV,and PLC has greatly improved the production efficiency of the workshop.Complex,it is difficult to unify the communication methods between various types of equipment of various brands,and it is easy to form information islands.This undoubtedly brings great difficulties to the intelligentization of the workshop,and OPC UA technology that can uniformly communicate with various types of equipment.It is undoubtedly an important solution to this kind of problems.Therefore,it is of great significance to study how to apply OPC UA technology to the manufacturing workshop and develop a manufacturing execution system based on this.This article first discusses the various problems that occur in the current workshop due to the large number of underlying devices,such as the inability of the devices to interact due to different communication protocols,forming information islands,and proposes the use of OPC UA technology to address these problems.solve.At the same time,it analyzes the research status of intelligent manufacturing and OPC UA at home and abroad,analyzes the situation of various types of equipment in the workshop,and focuses on the concepts related to robot pose and ROS system,and elaborates the basic concepts and information modeling of OPC UA technology.Method and communication principle,creatively combining OPC UA with ROS system and other types of sensors,and taking an intelligent manufacturing production line in a workshop as an example,the OPC UA information model of ROS robots and sensors is studied and given.A workshop communication architecture based on OPC UA was proposed above.The development of the OPC UA server program was completed using the ROS system and Python language,the development of the OPC UA client was completed using Java language,and the ROS robot communication was simulated using the Gazebo simulation software.experiment.After analyzing the needs of the workshop,this article analyzes and gives the constraints of various working states of the robot,discusses the various functions of the MES system equipment monitoring module,designs the business process and database table structure of the MES system equipment monitoring module,and A Java-based MES system equipment monitoring module based on OPC UA architecture was developed.The device monitoring module based on OPC UA architecture developed in this paper uses ROS robot simulation software and actual sensors for comparative experiments.The experimental results show that the MES system equipment monitoring module based on OPC UA architecture proposed in this paper has a good monitoring effect on the underlying ROS robots and sensors,realizes unified communication of different equipment,and can well complete the data collection task of the equipment.The monitoring and management of the equipment on the bottom floor of the workshop provides a good data acquisition solution and has a good application prospect.