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Aviation emergency instrument, and system initial alignment method and combined navigation algorithm thereof

An instrument system and aviation technology, applied in the field of integrated flight instruments for aviation, can solve the problems of poor reliability and maintainability, large volume and heavy weight, and achieve the effect of short alignment time and high alignment accuracy

Inactive Publication Date: 2011-05-11
航天科工惯性技术有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is basically no emergency equipment installed on general aircraft. Even if it is equipped with instruments with partial emergency functions, its technology mainly relies on traditional electromechanical sensors. Due to the use of more mechanical moving parts, there are large volume , heavy weight, poor reliability and maintainability

Method used

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  • Aviation emergency instrument, and system initial alignment method and combined navigation algorithm thereof
  • Aviation emergency instrument, and system initial alignment method and combined navigation algorithm thereof
  • Aviation emergency instrument, and system initial alignment method and combined navigation algorithm thereof

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Embodiment Construction

[0046] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments described below are used to explain the present invention by referring to the figures, and the embodiments are exemplary and should not be construed as limitations of the present invention.

[0047] see figure 1 As shown, according to a kind of aviation emergency instrument provided by the present invention, the whole dotted line frame 1 is the internal composition of the system, and the front end is a graphic display and control unit 10, which is used to display the measured navigation information to the pilot. ) Arrange some function buttons and adjustment knobs for function screen switching, display brightness adjustment and air pressure parameter adjustment; two antenna feeder sockets 2 and 3 for connecting the GPS antenna installed on the fuselage are in...

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Abstract

The invention provides an aviation emergency instrument which comprises an atmospheric pressure measurement unit, an inertial measurement unit, a double-antenna GPS satellite receiver connected with a satellite signal receiving antenna, a graphic display unit, a secondary power supply circuit, and a comprehensive processing and calculation unit, wherein the comprehensive processing and calculation unit receives the information from the individual sensors, calculates the navigation parameters indicative of air speed, pressure altitude, posture, flight direction, longitude and latitude by use of a sensor information fusion algorithm, and sends the calculation result to the high-density liquid crystal graphic display unit. According to the invention, since the aviation emergency instrument can provide the navigation parameters indicative of air speed, pressure altitude, posture (pitch angle and roll angle), flight direction, longitude and latitude, the aviation emergency instrument can not only provide reference information to a pilot who operates the main flight instrument in the normal state but also serve as an emergency instrument in case that the main flight instrument is in the failure state. When the main flight instrument completely fails to work, the pilot can operate the aircraft to return safely by means of the navigation information provided by the emergency instrument.

Description

technical field [0001] The invention relates to an integrated flight instrument for aviation, in particular to an aviation emergency instrument capable of providing necessary navigation information when the function of the main instrument of the aircraft is lost, as well as its system initial alignment method and integrated navigation algorithm. Background technique [0002] Multifunction instruments and displays are widely used in modern aircraft and various aircrafts. These instruments and displays adopt a centralized and distributed sub-structure, and transmit and share information with each other through an on-board bus (such as 1553b), and realize mutual backup through multiple sets of instruments in parallel, that is, when one set of instruments or displays fails, they can still Provides normal navigation information to the pilot. However, since these instruments and displays adopt a centralized power supply method, once the power supply of the cockpit fails, this "gl...

Claims

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Application Information

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IPC IPC(8): B64D43/00G01C21/24
Inventor 谢莉莉游学朱强郭秋芬李旭东杨勇郭双红岳步江向伟荣姜洪雷
Owner 航天科工惯性技术有限公司
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