Controller redundancy method, device and system

A controller and main controller technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of high cost and time extension, and achieve the effect of reducing delay and cost

Active Publication Date: 2020-06-09
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of long delay and high cost when switching controllers, the embodiment of the present invention provides a controller redundancy method, device and system

Method used

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  • Controller redundancy method, device and system
  • Controller redundancy method, device and system
  • Controller redundancy method, device and system

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Embodiment Construction

[0097] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0098] See figure 1 , which shows a schematic diagram of an implementation environment involved in the controller redundancy method provided in some embodiments of the present invention. The implementation environment may include: a master controller 110 and at least one slave controller 120 . The master controller 110 and the slave controller 120 can be switched to each other, but usually only one master controller performs control work in the same period of time, and there can be multiple slave controllers 120 for corresponding backup work.

[0099] Both the master controller 110 and the slave controller 120 can be a control chip, a control circuit, a server, or a server cluster composed of several servers.

[0100] A connection be...

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Abstract

The invention discloses a controller redundancy method, device and system, belonging to the technical field of industrial control. The method includes the following steps: receiving a first working state indication sent by a master controller, wherein the first working state indication is used to indicate the current working state of the master controller; judging whether the master controller fails according to the first working state indication; and when the master controller fails, performing control through a slave controller. The method and the device provided by the invention need no additional monitoring equipment, so that the time delay of the handover process is reduced, and the cost of handover is lowered. The method, the device and the system of the invention are used for switching between the master and slave controllers.

Description

technical field [0001] The invention relates to the technical field of industrial control, in particular to a controller redundancy method, device and system. Background technique [0002] With the continuous development of industrial control technology, the degree of automation of industrial equipment and production processes is becoming more and more complex. In an industrial control system, the controller is the core component of the system. Due to the development of modern productivity, some large-scale industrial production lines often require continuous operation of industrial equipment without stopping, and it is difficult to ensure continuous operation with zero faults no matter how reliable the controller is, which requires the use of controller redundancy methods to maintain continuous operation of the system . Among them, controller redundancy is a control method that uses multiple controllers (usually two controllers) to form a control system. When a master co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0421G05B2219/24182
Inventor 孙超李慧高锐强
Owner BC P INC CHINA NAT PETROLEUM CORP
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