Industrial control protocol identification and analysis method based on industrial gateway

Abstract

The invention discloses an industrial control protocol identification and analysis method based on an industrial gateway, which comprises the following steps that: the industrial gateway captures messages sent to the industrial gateway by an upper computer and a lower computer through a serial port and a network port, extracts characteristics representing different protocol types and protocol fields in the messages, and identifies and analyzes the messages according to character characteristics of protocols. According to the invention, intelligent identification and analysis of the industrial control protocol are realized based on the industrial gateway, and identification and analysis of protocols of an upper computer and a lower computer by the gateway are compatible. Herein, identification and analysis of more than forty industrial control protocols, custom protocols and unknown protocols can be realized, and the defect that the supported protocol types are less in related work is made up. According to the method, intelligent processing of the message is combined with manual intervention, and the accuracy of a result is guaranteed while the protocol identification and analysis speed is improved.

Description

technical field [0001] The invention relates to the technical field of computer communication, in particular to an industrial gateway-based industrial control protocol identification and analysis method. Background technique [0002] The Industrial Internet of Things refers to the Internet of Things technology in the industrial field. It is a technology in which machines, computers and personnel use advanced data analysis results to realize industrial intelligence. Install sensors on industrial equipment, connect sensors to interconnected networks, and realize data interoperability and system interoperability of industrial resources, so as to improve industrial production efficiency and industrial resource utilization, optimize industrial manufacturing processes and technologies, and build a new industrial production system. . At present, the Industrial Internet of Things has been gradually applied to various production links in many industrial fields such as manufacturing,...

AI Technical Summary

Problems solved by technology

Most of the currently applied industrial control protocols are proprietary protocols, the protocol format is sealed and customizable, and there is no standard delimiter between fields, so the standard format of the protocol is often unknown, and it is difficult to directly parse the protocol message

The study found that the existing work on industrial control protocols is relatively insufficient, most of the work is only carried out in simulation scenarios and the number of supported protocols is relatively small

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