A method and device for data isolation between security control applications and conventional control applications
A technology of safety control and conventional control, applied in the directions of comprehensive factory control, comprehensive factory control, program control, etc., can solve problems such as long cycle, and achieve the effect of ensuring integrity, functional safety integrity, and real-time performance.
Active Publication Date: 2022-05-10
ZHEJIANG SUPCON TECH
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Problems solved by technology
The cycle to complete a round of redundant synchronization is long, generally multiple control cycles
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[0033] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.
[0034] In order to facilitate the understanding of the present invention, some technical terms mentioned in the present invention are explained first.
[0035] Safety hybrid control system: refers to an industrial control system that includes both safety control applications and conventional control applications.
[0036]Channel: A term specific to system devices with multiple voting architectures, such as functional safety control systems. Channel is the basic processing unit of multiple voting system architecture. A channel generally contains a CPU, corresponding memory, and associated microelectronics. Each system chann...
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The invention discloses a method for data isolation between security and conventional control applications, comprising: S1, assigning a data exchange area for security / conventional control tasks; S2, performing data isolation between security and conventional control applications based on the allocated exchange data area exchange; also discloses a device for data isolation between security and conventional control applications, including at least two multi-channel architecture systems, each channel includes isolated security data areas and conventional data areas; conventional control tasks cannot rewrite security data area, can only read and cannot rewrite the conventional exchange input area, the safety control task cannot directly access the general data area, can only read but cannot rewrite the safety exchange input data area; effectively protect the safety data from the data, tasks and programs of the routine control application To ensure the functional safety integrity of security control applications and the integrity of data exchanged between multi-task running tasks, and solve the synchronization and real-time nature of task exchange data between multi-channels.
Description
technical field [0001] The invention relates to the field of industrial process control, in particular to a method and device for data isolation between security and conventional control applications. Background technique [0002] In order to integrate the advantages of functional safety control systems and conventional process control systems, improve the flexibility of control system deployment and application expansion, reduce the production and use costs of control systems, etc., in industrial applications such as oil and gas transmission, small key system control, etc., it has become more and more popular. There is an increasing need to support both safety control functions and conventional control functions in the same control system. [0003] The safety control function requires high reliability and high availability, and it needs to be developed and implemented in accordance with the relevant standards of functional safety. In safety control applications, safety con...
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IPC IPC(8): G05B19/418
CPCG05B19/41885G05B2219/32339Y02P90/02
Inventor 裘坤平志明江竹轩毛钦晖朱燕萍
Owner ZHEJIANG SUPCON TECH