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Method and system for displaying required navigation performance parameter

A technology of required navigation performance and parameters, applied in the field of aircraft navigation, can solve the problems that the display cannot be displayed intuitively, FTE and NSE cannot be displayed on the display at the same time, and the aircraft flight restricted area cannot be visually monitored.

Active Publication Date: 2015-12-23
COMAC +1
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Problems solved by technology

However, NSE needs to use the algorithm of the flight management system to issue an alarm, which cannot be displayed intuitively on the display
Neither of the above two methods can display FTE and NSE on the monitor at the same time
[0004] Another way to display RNP parameters is to display FTE and NSE on the horizontal and / or vertical deviation scale bands respectively, and the NSE value is coupled to both sides of the lateral and / or vertical deviation scale bands. This method is more accurate than the previous two methods. Intuitively see the values ​​of both NSE and FTE, but this method displays NSE and FTE separately from the horizontal and vertical directions in a two-dimensional manner, and cannot intuitively monitor the flight restricted area of ​​​​the aircraft in three-dimensional space

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  • Method and system for displaying required navigation performance parameter

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Embodiment Construction

[0032] When calculating the total systematic error (TSE) in the RNP specification, various calculation methods can be used. In one embodiment of the present disclosure, it is considered that TSE is approximately equivalent to the vector sum of navigation system error (NSE) and flight technical error (FTE), namely:

[0033] (Formula 1)

[0034]In one embodiment, any method known in the art may be used to determine FTE and NSE. For the sake of brevity, the specific calculation methods of FTE and NSE will not be introduced in this paper. In the case of knowing the FTE and NSE vectors, the TSE can be determined according to Equation 1 above.

[0035] Please refer to figure 1 , figure 1 An example of a double rectangle frame display 100 for displaying RNP parameters according to the present invention is shown, where the aircraft is in an ideal operating state. exist figure 1 In , an aircraft icon 101 is displayed at the estimated location of the aircraft. The center of the...

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Abstract

The invention discloses a method for displaying a required navigation performance (RNP) parameter of an aircraft. The method comprises: displaying a first frame expressing a range of an RNP value, displaying a second frame expressing a navigation system error (NSE) real-time value of the aircraft; and displaying a third frame expressing an RNP tolerance area. In addition, the invention also discloses a system for displaying a required navigation performance parameter of an aircraft and an aircraft containing the same. With the method and system, an RNP running state of an aircraft in three-dimensional space can be monitored visually.

Description

technical field [0001] The invention relates to the field of aircraft navigation, in particular to a method and system for displaying required navigation performance parameters. Background technique [0002] To ensure flight safety of an aircraft such as an aircraft, many parameters of the aircraft need to be displayed to an operator of the aircraft, such as a flight crew of the aircraft. Required navigation performance (RNP) means that the aircraft can fly along any desired path within the coverage area of ​​the navigation signal, or within the capability limit of the on-board navigation equipment, or a combination of both; Navigation performance monitoring and alerting capabilities. The total system error (TSE) in the horizontal direction is less than the specified performance limit (i.e., lateral RNP value) for 95% of the flight time; the TSE in the vertical direction is less than the specified performance limit (i.e., vertical RNP value) for 99.7% of the flight time va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G5/00
Inventor 郑智明叶军晖余亮赵春玲严林芳张克志孟繁栋
Owner COMAC
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