Industrial control network security protection method based on PLC

Abstract

The invention discloses an industrial control network security protection method based on a PLC. The method comprises a PLC control module which is bidirectionally and electrically connected with an emission monitoring module, a video monitoring module, a security monitoring module and a background monitoring module, the PLC control module can be electrically connected with other modules in one or more matched use modes of electric connection, infrared remote connection, mobile data remote connection or Bluetooth remote connection, and the emission monitoring module comprises an atmospheric dust monitoring module, a nitrogen and sulfur compound monitoring module and a cyanide and chloride monitoring module. Through cooperative use of the PLC control module, the emission monitoring module, the video monitoring module, the security monitoring module and the background monitoring module, data analysis can be more unified, supervision of a user is facilitated, cooperative use of all the monitoring modules is facilitated through background manual regulation, unified allocation of resources is achieved, the management span is reduced, and the management cost is saved.

Description

technical field [0001] The invention relates to the technical field of industrial safety monitoring, in particular to a PLC-based industrial control network safety protection method. Background technique [0002] The PLC control system is a new generation of industrial control devices formed by introducing microelectronics technology, computer technology, automatic control technology and communication technology on the basis of traditional sequence controllers. The purpose is to replace relays, execute logic, timing, Sequential control functions such as counting, establish a flexible remote control system, which has the characteristics of strong versatility, convenient use, wide adaptability, high reliability, strong anti-interference ability, and simple programming. [0003] Safety in industrial plants of chemical products is particularly important. Work such as environmental safety, circuit safety, and road safety in plant areas are all very important. Workers are under gr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a PLC-based industrial control network security protection method, which has the advantages of centralized management of various security indicators, and solves the problem that the factory area security management span is relatively large in the existing market, the staff's work classification is relatively scattered, and resources are not available. Unified and coordinated management, difficult staff supervision

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