Bird strike risk evaluation method based on exponential function

An exponential function and risk assessment technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of low accuracy of bird strike risk assessment, avoid bird strike accidents and incidents, and ensure safety. drop effect

Active Publication Date: 2014-07-09
CHINA ACAD OF CIVIL AVIATION SCI & TECH
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Problems solved by technology

[0004] Aiming at the low accuracy of bird strike risk assessment by the "matrix method" currently adopted, the present invention provides a bird strike risk assessment method based on an exponential function, using the ...

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  • Bird strike risk evaluation method based on exponential function
  • Bird strike risk evaluation method based on exponential function
  • Bird strike risk evaluation method based on exponential function

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Embodiment Construction

[0015] The bird strike risk level assessment method proposed by the present invention will be illustrated and described below in conjunction with the bird strike risk level assessment schematic diagram in the accompanying drawings.

[0016] like figure 1 As shown, the bird strike risk is divided into three levels of low risk, medium risk and high risk, and the real-time estimated bird strike probability value and bird strike severity value correspond to different bird strike risk levels. The specific steps are as follows:

[0017] The first step: use the exponential function curve to establish a bird strike risk assessment model. The bird strike risk level R is jointly determined by the bird strike probability P (01 (P), and the segmentation curve S=f of medium risk level and high risk level 2 (P), as follows

[0018] f 1 (P)=b 1 ·exp(a 1 P) (1)

[0019] f 2 (P)=b 2 ·exp(a 2 P) (2)

[0020] In the formula, a 1 2 1 2 1 、a 2 , b 1 and b 2 Determined by the user. I...

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Abstract

The invention provides a bird strike risk evaluation method based on an exponential function. The bird strike risk evaluation method based on the exponential function is used for bird strike risk evaluation in aviation. The bird strike risk evaluation method is characterized in that a bird strike risk evaluation model is established by use of an exponential function curve, the bird strike risk is divided into three grades of low risk, medium risk and high risk, and the grade of the bird strike risk is evaluated in real time based on a bird strike probability and a bird strike severity degree value both estimated in real time. The bird strike risk evaluation method is capable of estimating the bird strike risk in real time relatively accurately, and therefore, the bird strike accidents and accident proneness are effectively avoided and safety of take-off and landing of flights are guaranteed.

Description

technical field [0001] The invention relates to the technical field of bird strike risk assessment, and relates to a bird strike risk assessment method based on an exponential function. Background technique [0002] With the continuous development of civil aviation and the continuous improvement of the ecological environment, the pressure on bird strike prevention in my country is increasing. More than 90% of bird strikes occurred at the airport and its surrounding areas, especially during the take-off and landing stages of aircraft below 30m. Therefore, it is necessary to accurately estimate the risk level of bird strikes through scientific methods, and guide flights to effectively avoid bird strike accidents and incidents. [0003] In the past ten years, radar has become an important means of bird situation observation. "Airport Bird Detection Radar" can provide real-time bird situation information at the airport and its surrounding areas, and estimate the probability an...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 陈唯实李敬
Owner CHINA ACAD OF CIVIL AVIATION SCI & TECH
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