Construction method of control system redundancy framework

Abstract

The invention provides a construction method of a control system redundancy framework. A control system at least comprises a controller, a communication module, an input and output module and a power supply module. The controller is connected with the communication module through the Ethernet, and the communication module is connected with the input and output module. The redundancy framework comprises a controller redundancy, a communication module redundancy, an input and output module redundancy, a power supply module redundancy and a network redundancy. A main controller and a standby controller, a main communication module and a standby communication module, a main input and output module and a standby input and output module, and a main power supply module and a standby power supply in the redundancy framework are of the same hardware structure. The construction method is simple in principle and easy to implement, data flow and communication speed of different layers are fully considered, communication redundancies of the different layers in the system are achieved, high timeliness, reliability and safety are achieved, the redundancies of the different layers in the control system can be flexibly configured according to needs, the redundancies and non-redundancies can be used in a mixed mode, and complexity of overall design of the system is lowered.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for constructing a control system redundant framework. Background technique [0002] DCS is the abbreviation of Distributed Control System, which is generally called distributed control system or distributed control system in China. Insufficient, it has the characteristics of decentralized control, centralized operation, hierarchical management, flexible configuration and convenient configuration. Therefore, the DCS system is not only highly versatile and easy to use, but also has higher openness and reliability. After nearly 40 years of development, distributed control systems have increasingly rich functions and continuously improved performance. They are widely used in various industries and have become mainstream products in the field of automation control. [0003] Reliability is the key index of DCS system, and redundancy technology is a disaster recovery method commonl...

AI Technical Summary

Problems solved by technology

Common component redundancy is to design special components that support redundant functions, which will increase the complexity and workload of system design, application and management

Some redundant systems are implemented based on some non-universal technologies, and their openness and scalability cannot be guaranteed

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