Internet of things gateway supporting equipment access verification, system and equipment access verification method

Abstract

The invention discloses an Internet of Things gateway supporting equipment access verification, a system and an equipment access verification method. The Internet of Things gateway comprises an information model application module, a publishing module, a subscription module, a middleware agent module and a security authentication service module, wherein the information model application module isused for performing dynamic modification on an OPC UA standard data structure of unified architecture of object connection and embedding in the aspect of process; the publishing module and the subscription module are used for converting middleware data and OPC UA standard data; the information model application module, the publishing module and the subscription module are established based on OPCUA architecture; the middleware agent module is used for storing and forwarding the middleware data; and security authentication service module is used for carrying out security authentication and authority control on equipment to be accessed to the Internet of Things gateway. In addition, the system further comprises the equipment accessed to the Internet of Things gateway, conversion of data ofdifferent configuration contents is completed through using the gateway and the accessed equipment which are respectively configured with the publishing and subscribing module of the OPC UA architecture and the information model, and the convenience and fluency of data conversion can be improved.

Description

technical field [0001] The present application relates to the technical field of OPC UA architecture, in particular to an IoT gateway supporting device access verification, a system and a method for device access verification. Background technique [0002] The industrial Internet of Things gateway is characterized in that it includes: assisting customers to realize data collection of various protocol devices, protocol conversion, wireless communication, reverse control, etc. Data collection is used to obtain industrial data collected by network devices in heterogeneous networks. Protocol conversion is used to perform protocol conversion on acquired industrial data. The wireless communication is used to send the data after the protocol conversion to the cloud platform. Reverse control is used for reverse operation of the cloud platform and viewing of client device information. [0003] OPC UA is another breakthrough after the great success of traditional OPC technology, wh...

AI Technical Summary

Problems solved by technology

[0009] In the existing patent solutions, they are basically based on the classic OPC or OPC UA information model, customizing the conversion between upper-layer business messages and OPC information model. Whenever the information model changes, the corresponding implementation logic needs to be changed accordingly and Restart the service, which is inconvenient in the actual application process

Images