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Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant

A technology of distributed control and self-diagnosis system, which is applied in the field of nuclear power, can solve problems such as the inability to detect gateway communication abnormalities in time, and achieve the effect of avoiding the expansion of abnormalities and faults and ensuring safety and stability

Active Publication Date: 2014-08-27
CHINA GENERAL NUCLEAR POWER OPERATION +1
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a self-diagnosis method and system for gateway communication abnormalities in the distributed control system of nuclear power plants, which can detect gateway communication abnormalities in time abnormal

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  • Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant
  • Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant
  • Self-diagnosis method and system for gateway communication abnormity in distributed control system of nuclear power plant

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Embodiment Construction

[0060] figure 2 It is the flow chart of the first embodiment of the self-diagnosis method for gateway communication abnormality in the distributed control system of nuclear power plant of the present invention. First, it is explained that the distributed control system exchanges data with the third-party system through the gateway, and the third-party system can increase communication Point systems, such as: turbine monitoring and regulation system, reactor control rod system, power plant radiation monitoring system, fire detection system and LOCA monitoring system. That is to say, in addition to the communication points required for normal operation of these systems, additional communication points can be added to send and receive detection signals to determine whether the gateway communication is normal.

[0061] The gateway communication abnormal self-diagnosis method includes:

[0062] S1. The distributed control system generates the first detection signal and transmits it to ...

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Abstract

The invention discloses a self-diagnosis method and system for gateway communication abnormity in a distributed control system of a nuclear power plant. The self-diagnosis method for gateway communication abnormity includes the steps that the distributed control system generates a first detection signal and transmits the detection signal to a third-party system through a gateway; the distributed control system collects a second detection signal from the third-party system, wherein the second detection signal is the first detection signal received by the third-party system; the distributed control system judges whether abnormity happens to the gateway or not by comparing the first detection signal with the second detection signal and sends an alarm signal when judging that abnormity exists. By means of the technical scheme, the state and the data communication condition of the gateway can be effectively and unceasingly monitored, and an alarm is immediately given for abnormity happening to the gateway.

Description

Technical field [0001] The invention relates to the field of nuclear power, in particular to a method and system for self-diagnosis of abnormal gateway communication in a nuclear power plant distributed control system. Background technique [0002] Nuclear power plant DCS (Distributed Control System) systems (Non-safety Classification (NC) and Safety-Related (SR)) and third-party systems (for example, turbine monitoring and regulation systems) , Reactor control rod systems, reactor protection or emergency shutdown systems, power plant radiation monitoring systems, fire detection systems, and LOCA (Loss Of Coolant Accident, coolant accident loss) monitoring systems, etc.) data exchange generally uses gateway communication. Abnormalities in gateway communication often have an impact on the control and monitoring of nuclear power plants, severely causing the unavailability of important control and monitoring systems, and laying down major hidden dangers to the stable and safe operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 周红清韩毅李东郭明鑫张立国陈永伟陈毓犹代伦
Owner CHINA GENERAL NUCLEAR POWER OPERATION
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