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A Mechanical Double Redundancy Electrical Three Redundancy Air Data Sensor Redundancy Management Algorithm

A technology of mechanical double redundancy and atmospheric data, applied in the field of aircraft flight control system, to achieve the effect of accurate judgment

Active Publication Date: 2017-11-03
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problems existing in the related technologies, the present invention provides a kind of mechanical double-redundancy electrical three-redundancy air data sensor redundancy management algorithm, aiming at the two-redundancy gas path and three-redundancy air data sensor of some aircraft air data systems To solve the problem of mismatching of the redundancy, realize the redundancy management of atmospheric data information under special circumstances

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  • A Mechanical Double Redundancy Electrical Three Redundancy Air Data Sensor Redundancy Management Algorithm
  • A Mechanical Double Redundancy Electrical Three Redundancy Air Data Sensor Redundancy Management Algorithm

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[0014] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated.

[0015] The air data information of the present invention selects the redundancy management signal according to the three-signal monitoring and voting algorithm.

[0016] Such as figure 1 As shown, the air path of the nose pitot tube is connected to two air data sensors, the air path of the left front pitot tube is connected to one air data sensor, and the air path between the nose pitot tube and the left front pitot tube is not connected. If there is a mechanical failure such as airway blockage in the nose pitot tube, but the left front pitot tube is working normally, it will cause the three-redundancy monitoring algorithm to judge the signal of the air data sensor co...

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Abstract

The invention provides a redundancy management algorithm of a mechanical dual-redundancy and electrical triplex redundancy atmosphere data sensor. When the output result of an atmosphere data sensor A is the same as the output result of a sensor B which is from the same mechanical equipment with the sensor A, and the output result of the sensor A is different from the output result of an atmosphere data sensor C which is from another mechanical equipment, the sensor A, the sensor B and the sensor C are subjected to self-test, the sensor A and the sensor B are regarded as the same output for judging fault safety value, then the sensor C is combined for judging the data fault of the mechanical equipment, and the redundancy management that in a traditional 2:1 way, the different data are cut off is avoided, so that the judgment of the data output results of the sensors is more accurate.

Description

technical field [0001] The invention belongs to the technical field of aircraft flight control systems, and in particular relates to an aircraft management system redundancy signal redundancy management strategy problem. Background technique [0002] The air data sensor is an important parameter measurement sensor for the flight control system and the aircraft management system. Its core function is to convert the input full and static pressure signals into digital signals and calculate the output. The air data sensor calculates atmospheric parameters such as dynamic pressure, static pressure, barometric altitude, corrected airspeed, ascending and descending speed, and Mach number based on total pressure and static pressure (if correction is required, use the corrected static pressure), and outputs them to the aircraft Manage computers and other systems on board. [0003] In related technologies, when managing the redundancy of air data sensors with double redundancy in mac...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/24193G05B2219/2612
Inventor 韩淑梅张冬马宝
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA