Equipment data collecting system based on OPC UA protocol

Abstract

The invention provides an equipment data collecting system based on OPC UA protocol, which can solve multi-level data collection, transmission and monitoring problems of each bottom device, measuring instrument, automatic control system and so on on the industrial site, realize data transparency of complicated bottom automation equipment and improve information integration modes. The equipment data collecting system based on the OPC UA protocol is characterized by comprising a bottom adapter, an OPC UA middleware and an upper application, wherein the bottom adapter comprises a data modulation module and a data transmission module, wherein the data modulation module is used for taking out bottom equipment data value needed by a user, data values of a plurality of communication protocols can be taken out through configuration, and the data transmission module is used for transmitting the data value taken out from the data modulation module to the OPC UA middleware at a configured speed; the OPC UA middleware comprises a data service center and a Modeling and configuring module; and the data service center comprises a data collection module, an even processing module, an OPC UA real-time data server and a history data module.

Description

Technical field [0001] The present invention relates to the field of industrial automation, in particular to an equipment data acquisition system based on the OPC UA protocol used in the field of industrial automation to collect equipment data. Background technique [0002] In the modern industrial production process, data collection is the basis for intelligent control. Recently, big data has contributed to the improvement of industrial production efficiency, and the collection of data from the underlying automation equipment is the basis of big data applications. How to solve the problem of collecting, transmitting, storing and analyzing the massive data of the underlying automation equipment has become an urgent problem. . In addition, industrial equipment is becoming more and more complex, and the equipment uses a wide range of communication protocols, which increases the difficulty of managing equipment data in the same factory using different communication protocols. The ...

AI Technical Summary

Problems solved by technology

However, OPC has two main disadvantages: one is that it depends on the Windows platform and COM port; the other is that DCOM is difficult to configure when using OPC for remote communication, has a long non-configurable timeout, and cannot be used for Internet communication

[0006] However, there are defects in the above-mentioned patent: although this invention effectively connects the Modbus device to the OPCUA protocol, can collect device data, and does not need to change the software and hardware of the device, but this method has too many configuration modules on the OPC UA client. The function settings are complicated and not clear enough, and this method only mentions the connection of the OPC UA client to the Modbus device, which is not universal

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