CN-122022444-A - Airport bird strike risk situation and prevention and control effect evaluation method and system

CN122022444ACN 122022444 ACN122022444 ACN 122022444ACN-122022444-A

Abstract

The embodiment of the invention discloses an airport bird strike risk situation and prevention and control effect evaluation method, which comprises the steps of obtaining source data, automatically analyzing the source data from a plurality of evaluation dimensions to obtain an evaluation result, and generating a document report. The method has the advantages that (1) six dimensions are used comprehensively, and the whole flow of bird strike risk prevention and control operation is covered by the six dimensions from bird activity to risk carding, targeted evaluation of a risk prevention and control method, overall evaluation of a risk prevention and control effect and bird strike accident analysis. (2) The special purpose is that a plurality of indexes are further developed from a plurality of angles under each dimension, so that detail can be further obtained to master the bird strike prevention work and the effect. Through theoretical guidance and practical verification, the index design fully considers bird habit.

Inventors

WU HONGGANG
SUI YUNFENG
HE DONGLIN
LIU WEIQIAN
YANG ZHOU

Assignees

中国民用航空总局第二研究所

Dates

Publication Date: 20260512
Application Date: 20251211

Claims (9)

1. An airport bird strike risk situation and prevention control effect assessment method is characterized by comprising the following steps: the method comprises the steps of acquiring source data, wherein the source data comprises manually recorded data and detection data automatically acquired by a collaborative detection system; automatically analyzing the source data from a plurality of evaluation dimensions to obtain an evaluation result, and automatically generating an interface display and a document report according to the evaluation result; The evaluation dimensions comprise a statistical analysis of overall bird activity conditions, a high-risk bird species and activity mode analysis, a bird repelling means effectiveness analysis, an ecological management means effectiveness analysis, a risk situation regulation effect analysis and a bird strike accident analysis.
2. The method according to claim 1, characterized in that the overall bird activity profile is statistically analyzed, in particular: displaying the macroscopic state and rule of bird activities in an airport in a data form, a chart form, a photo form and a three-dimensional map form; screening the source data to generate evaluation indexes, and carrying out quantitative analysis by adopting the evaluation indexes, wherein the evaluation indexes comprise bird species and quantity statistical analysis, three-dimensional space/plane area/height layer distribution quantity or density analysis, season/month/day/24 hours/day/night/migration season statistical analysis, representative activity pattern analysis and track analysis.
3. The method according to claim 2, further comprising modifying the probe data in a quantity statistics and density analysis, in particular: Dividing the three-dimensional space into three-dimensional grids, and calculating the initial value of the bird activity number or density of each three-dimensional grid by adopting the detection data; according to the distance between each three-dimensional grid and the radar detection equipment, setting the attenuation coefficient a of each three-dimensional grid as the attenuation coefficient of the radar detection rate at the distance according to the attenuation coefficient of the radar detection rate along with the distance; According to the height of each three-dimensional grid, multiplying the attenuation coefficient a of each grid by the ultra-low-altitude attenuation coefficient b according to the attenuation coefficient b of radar detection performance to obtain an attenuation coefficient k; According to the coverage capability of the collaborative detection system, setting the attenuation coefficient of the stereoscopic grid which cannot be covered to 0 and setting the stereoscopic grid with the excessively small attenuation coefficient to 0; For the three-dimensional grids with the attenuation coefficient of 0, removing detection data in the three-dimensional grids, and for the three-dimensional grids with the attenuation coefficient of not 0, dividing the bird activity number or the initial density value of the three-dimensional grids by the attenuation coefficient k of the three-dimensional grids to obtain a correction value of the three-dimensional grids; and correcting the number of the three-dimensional grids by adopting the correction value, and calculating the space-time distribution rule and the distribution density of bird activities based on the corrected number of the three-dimensional grids.
4. The method of claim 1, wherein the high risk bird species and activity pattern analysis is specifically: Selecting potential high-risk bird species from the source data by adopting the statistics of the number and the mass distribution of the bird species; screening current high-risk bird species from the source data by adopting high-risk bird activity alarm statistics; Screening potential high-risk bird species from the source data by adopting bird strike accident statistics; And analyzing and displaying the screened high-risk bird species and the activity modes thereof in a data form, a chart form, a photo form and a three-dimensional map form.
5. The method according to claim 1, wherein the bird repellent means effectiveness analysis is specifically: analyzing the influence on the bird activities after implementing the bird repelling means by adopting a data form, a chart form, a video form and a three-dimensional map form, and displaying the deployment condition and the operation condition of bird repelling equipment; And carrying out quantitative analysis by adopting an evaluation index, wherein the evaluation index comprises stress response rate, an effective range, a driving effect, a typical stress response mode and an ecological regulation effect.
6. The method according to claim 1, wherein the ecological management means effectiveness analysis is specifically: The implementation condition of the ecological management means is displayed in a data form, a chart form, a photo form and a three-dimensional map form, and the influence of the ecological management means on the bird activities is analyzed and implemented; performing quantitative analysis by adopting evaluation indexes, wherein the evaluation indexes comprise population quantity control effectiveness and cross-border mode influence effectiveness; The evaluation of population quantity control effectiveness specifically comprises the following steps: Selecting an ecological management means type, and automatically extracting the time and the area of the operation from the operation record of the source data; Selecting bird species, automatically reading activity data of the selected bird species in the working area, the periphery, the front and back of the working time and the past year from the bird activity database; Calculating the time-space density change curve of bird activity from the data of bird activity in the past year A normal fluctuation range; The time-space density and time change curve D of the bird activity before ecological treatment operation are combined, and the time change curve of the time-space density of the bird activity under the general condition is predicted Wherein c is a change coefficient, and is the average ratio of the activity space-time density of birds to the data of the past year synchronization before ecological management operation; the time-density change curve of the activity space-time of birds after ecological treatment operation And prediction curve Comparing, calculating the time change curve of the effectiveness as ; The evaluation of the effectiveness of the influence of the transit mode is specifically as follows: And replacing the bird activity space-time density with the number of non-stay activity tracks and the number of stay activity tracks, and evaluating the influence effectiveness of the transit mode by adopting the same principle and method steps as those of the population quantity control effectiveness evaluation method.
7. A method according to claim 3, wherein the risk situation regulatory effect analysis is specifically: displaying the airport bird strike risk situation obtained from macroscopic analysis and the change of the risk situation after the implementation of various bird repelling means; Carrying out quantitative analysis by adopting risk situation assessment indexes, wherein the risk situation assessment indexes comprise a key space-time density risk coefficient and a shortest space-time distance risk coefficient; the key space-time density risk coefficient calculation method comprises the following steps: screening data from the three-dimensional grids of the bird activity space-time density according to the space area adjacent to the channel and the time adjacent to the aircraft activity, and establishing the high-risk bird space-time activity density of each three-dimensional grid i according to the screened data ; Screening data from the three-dimensional grids of the bird activity space-time density according to other space regions and other times, and establishing the high-risk bird activity space-time density of each three-dimensional grid i according to the screened data ; For each high risk space-time bird activity density High risk bird space-time activity density divided by the height layer Obtaining the space-time activity density of birds with high risk for eliminating the influence of fluctuation of the number of birds ; Calculating the space-time activity density of birds at high risk according to the space-time distance weight of each three-dimensional grid and the aircraft Obtaining a key space-time density risk coefficient; the shortest space-time distance risk coefficient calculating method comprises the following steps: Counting the number of bird movement tracks on each distance section in a distance section; setting a safety distance, and calculating the average number M a of the bird movement track numbers on each distance section outside the safety distance; Calculating the number M j of bird movement tracks on each distance section j within the safe distance, and calculating to eliminate the influence of bird number fluctuation ; Weighted according to the distance of each segment, calculate And obtaining the shortest space-time risk coefficient.
8. The method according to claim 1, wherein the bird strike event analysis is specifically: displaying the time, space, aircraft position, bird species statistics and accident process of bird strike accidents in a data form, an icon form, a video form or a three-dimensional map form, and analyzing influence factors and risk prevention and control results; Performing quantitative analysis by adopting an evaluation index, wherein the evaluation index comprises comparison analysis of an actual accident rate and a theoretical accident rate, association relation of accidents and risk prevention and control measures and association relation of the accidents and environmental factors; the comparison analysis of the actual accident rate and the theoretical accident rate specifically comprises the following steps: reading aircraft landing time period airport bird activity space-time density; Calculating the probability of bird strike accidents of all flights, and taking an average value to obtain a theoretical accident rate; And comparing the actual accident rate manually reported by the staff with the theoretical accident rate, and analyzing the risk prevention and control effect.
9. An airport bird strike risk situation and control effort assessment system comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is adapted to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of any of claims 1-8.

Description

Airport bird strike risk situation and prevention and control effect evaluation method and system Technical Field The invention relates to the technical field of airport bird strike aircraft risk prevention and control, in particular to an airport bird strike risk situation and prevention and control effect evaluation method and system. Background Bird strike risk prevention and control is a complex system engineering. The traditional risk prevention and control work starts from bird plot investigation, and a comprehensive risk prevention and control scheme, an execution scheme, an evaluation effect and an adjustment scheme are formulated aiming at risks to form a complete work closed loop. In the risk prevention and control loop, bird activity information is always required to be mastered. With the development of low-altitude detection technology, the airport bird activity detection technology is applied, and the ability of sensing bird activity is remarkably improved. But the utilization mode of the detection information is mainly linked with bird-driving equipment to form an intelligent bird-driving system. While some systems also provide statistical chart analysis of the probe data, they are not tightly coupled with risk prevention and control services. The method can not completely meet the requirement of a complete closed loop of risk prevention and control work, and the utilization method of deep mining detection information is also needed. Besides intelligent control bird repellent equipment, bird activity detection information can improve bird strike risk prevention and control work from three layers. Firstly, in the link of preparing a risk prevention and control scheme, the rules of bird activities are mastered, the high risk bird activities are positioned, and the risk prevention and control work can be developed more pertinently, including ecological management, bird repelling equipment deployment, personnel arrangement and the like. Secondly, in the evaluation effect link, the effectiveness of the bird repelling equipment, the bird repelling means and the ecological management method is required to be evaluated from the microcosmic level, and a basis is provided for improving the implementation mode of the bird repelling means. Third, in the evaluation effect link, the overall effect of the risk prevention and control work needs to be evaluated from the macroscopic level. The method not only provides a basis for adjusting the overall risk prevention and control scheme, but also is a mode for the overall work of the assessment department. Disclosure of Invention Aiming at the defects of the prior art in the background technology, the embodiment of the invention aims to provide an airport bird strike risk situation and prevention and control effect evaluation method and system. In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a method for evaluating bird strike risk situation and prevention and control effect in an airport, including: the method comprises the steps of acquiring source data, wherein the source data comprises manually recorded data and detection data automatically acquired by a collaborative detection system; automatically analyzing the source data from a plurality of evaluation dimensions to obtain an evaluation result, and automatically generating an interface display and a document report according to the evaluation result; The evaluation dimensions comprise a statistical analysis of overall bird activity conditions, a high-risk bird species and activity mode analysis, a bird repelling means effectiveness analysis, an ecological management means effectiveness analysis, a risk situation regulation effect analysis and a bird strike accident analysis. As a specific implementation mode of the application, the general condition statistical analysis of the bird-passing activity is specifically as follows: displaying the macroscopic state and rule of bird activities in an airport in a data form, a chart form, a photo form and a three-dimensional map form; screening the source data to generate evaluation indexes, and carrying out quantitative analysis by adopting the evaluation indexes, wherein the evaluation indexes comprise bird species and quantity statistical analysis, three-dimensional space/plane area/height layer distribution quantity or density analysis, season/month/day/24 hours/day/night/migration season statistical analysis, representative activity pattern analysis and track analysis. As a specific implementation manner of the present application, in the quantitative statistics and density analysis, the detection data is corrected, specifically: Dividing the three-dimensional space into three-dimensional grids, and calculating the initial value of the bird activity number or density of each three-dimensional grid by adopting the detection data; according to the distance between each three-dimensional grid and the radar