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Dual-redundancy sensor signal voting method based on fault integration

A sensor signal, dual redundancy technology, applied in the direction of instruments, safety arrangements, control/regulation systems, etc., to achieve the effect of avoiding unstable control

Active Publication Date: 2020-01-14
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

[0005] The purpose of this application is to provide a dual-redundancy sensor signal voting method based on fault integration to solve at least one problem in the prior art

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  • Dual-redundancy sensor signal voting method based on fault integration
  • Dual-redundancy sensor signal voting method based on fault integration
  • Dual-redundancy sensor signal voting method based on fault integration

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Embodiment Construction

[0053] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The application belongs to the field of aero-engine airborne-sensor signal processing, and particularly relates to a dual-redundancy sensor signal voting method based on fault integration. The methodincludes: step one: obtaining measurement values of a dual-redundancy sensor signal, and carrying out extreme value fault judgment and cross fault judgment on the measurement values of the dual-redundant sensor signal to obtain an extreme value judgment result and a cross judgment result; step two, acquiring measurement status of the dual-redundant sensor signal, and obtaining signal status information according to the measurement status of the dual-redundancy sensor signal and the extreme value judgment result; step three, carrying out fault integration on the signal status information to obtain a fault integration result; and step four, carrying out voting according to the cross judgment result, the signal status information and the fault integration result to obtain a voting result. Themethod can avoid engine instability control caused by parameter selection changing, and can reduce maintenance cost.

Description

technical field [0001] The application belongs to the field of aero-engine onboard sensor signal processing, in particular to a dual-redundancy sensor signal voting method based on fault integration. Background technique [0002] In the digital electronic control system of the aero-engine, the state parameters of each section of the engine are reflected by sensors, and converted into electrical signals, which are provided to the digital electronic controller to realize the control and monitoring of the engine. Generally, the engine on-board sensors for control are in the form of dual-redundancy sensors, which can ensure that when there is a problem with one of the sensor's redundancy, it can be replaced by other redundancy, which improves the reliability of the system. But at the same time, it also brings corresponding problems. When the measurement results of different margins are different or the sensor is faulty, how to select the appropriate measurement data for engine c...

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Application Information

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IPC IPC(8): G05B9/03
CPCG05B9/03
Inventor 李琛郝彬彬侯羽石崔利丰韩崇鹏
Owner AECC SHENYANG ENGINE RES INST
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