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CN-121998335-A - Weight self-adaptive adjustment processing method based on inter-aircraft conflict quantitative evaluation

CN121998335ACN 121998335 ACN121998335 ACN 121998335ACN-121998335-A

Abstract

The invention discloses a weight self-adaptive adjustment processing method based on inter-aircraft conflict quantitative evaluation, which comprises the steps of constructing a conflict entropy calculation model taking space adjacency, relative motion state and time urgency as key parameters and calculating to obtain conflict entropy of two aircrafts, wherein the conflict entropy calculation model calculates a research aircraft set according to aircraft combination to obtain total conflict entropy at research time, constructing a cooperative constraint dynamic weight model comprising an operation index system, the operation index system comprises two indexes of conflict safety and non-safety and respectively corresponds to preset initial static weights, setting a conflict entropy threshold interval according to a dynamic weight adjustment rule of the cooperative constraint dynamic weight model and correspondingly obtaining weight correction values, and obtaining dynamic weights of the conflict safety indexes according to a dynamic adjustment formula. The invention realizes a dynamic adjustment mechanism for dynamically adjusting the conflict security class index weight based on the conflict entropy, promotes the core security in the space domain and gives consideration to the scientific evaluation and decision of the efficiency.

Inventors

  • SHI HONGFANG
  • Miao jiahe

Assignees

  • 中国民航科学技术研究院

Dates

Publication Date
20260508
Application Date
20260122

Claims (10)

  1. 1. A weight self-adaptive adjustment processing method based on the quantitative assessment of collision among aircrafts is characterized by comprising the following steps: S1, constructing a conflict entropy calculation model taking space adjacency, relative motion state and time urgency as key parameters, acquiring key parameter data of two aircrafts i and j in a research airspace, inputting the key parameter data into the conflict entropy calculation model, and calculating to obtain conflict entropy of the two aircrafts i and j; S2, selecting a research aircraft set in a research airspace, dividing the research aircraft set into a plurality of aircraft combinations according to two aircraft as one aircraft combination by a conflict entropy calculation model, and calculating to obtain the total conflict entropy of all aircraft combinations of the research aircraft set in the research airspace at the research moment ; S3, constructing a collaborative constraint dynamic weight model comprising an operation index system, wherein the operation index system comprises two indexes of conflict safety type and non-safety type and corresponds to preset initial static weights respectively, the sum of all the preset initial static weights is 1, the collaborative constraint dynamic weight model is set with a dynamic weight adjustment rule of the conflict safety type index, and the dynamic weight adjustment rule is used for setting a conflict entropy threshold interval and according to the total conflict entropy Corresponding acquisition weight correction value of belonged conflict entropy threshold interval Then dynamically adjusting according to the following formula to obtain the research moment Dynamic weighting of conflicting security class indicators of (2) ; 。
  2. 2. The method for adaptive adjustment of weights based on quantitative assessment of collision between aircraft according to claim 1, wherein in method S3, dynamic weight models are cooperatively constrained to study time of day Dynamic weighting of conflicting security class indicators of (2) For the study time The initial static weight of the non-safety class index is subjected to collaborative dynamic adjustment, and the collaborative dynamic adjustment constraint rule of the collaborative constraint dynamic weight model is that the conflict safety class and the non-safety class after dynamic adjustment are in research time The sum of weights of (2) is 1.
  3. 3. The weight adaptive adjustment processing method based on inter-aircraft conflict quantitative evaluation according to claim 2, wherein the conflict safety class and non-safety class of the operation index system are respectively constructed according to an upper attribution level index architecture, the conflict safety class index comprises a plurality of first-level indexes, a first-level index next level of the conflict safety class index comprises a plurality of second-level indexes, all the second-level indexes of the conflict safety class index respectively correspond to initial static weights of preset second-level, the first-level index of the conflict safety class index is a second-level initial static weight addition preset for all the second-level indexes of the attribution level, the non-safety class index comprises a plurality of first-level indexes, the next level of each first-level index comprises a plurality of second-level indexes, the first-level index of the non-safety class index is a second-level initial static weight addition preset for all the second-level indexes of the attribution level, and the collaborative constraint dynamic weight model is used for researching time of the conflict safety class indexes Dynamic weighting of (2) Sequentially and cooperatively adjusting in the attribute level of the conflict security class indexes, wherein the cooperative constraint dynamic weight model is used for researching the moment The non-security class indicators of (2) are adjusted cooperatively in turn within the home hierarchy.
  4. 4. The method for adaptively adjusting and processing weights based on quantitative assessment of collision among aircraft according to claim 1, wherein in the method S1, the collision entropy expression of the two aircraft i and j of the collision entropy calculation model is as follows: Wherein For the spatial proximity of the aircraft i, j, As relative motion state data for the aircraft i, j, As a function of the time-forcing function, Is a normalized parameter.
  5. 5. The method for adaptive adjustment of weights based on quantitative assessment of collision between aircraft according to claim 4, wherein the spatial proximity is The calculated expression of (2) is as follows: Wherein For the three-dimensional distance between aircraft i and j, The scale factor is influenced for distance.
  6. 6. The method for adaptive adjustment of weights based on quantitative assessment of collision between aircraft according to claim 4, wherein the relative motion state data The calculated expression of (2) is as follows: ; ; Wherein the method comprises the steps of The velocity vectors of aircraft i and j respectively, As a smoothing factor of the velocity difference, Is the course included angle of the two aircrafts, And the heading angle influence coefficient is obtained.
  7. 7. The method for adaptive adjustment of weight based on quantitative assessment of collision between aircraft according to claim 4, wherein the time forcing function The method comprises presetting time pressing threshold And , Setting time urgency coefficient And Obtaining a time forcing function according to the following piecewise function expression : , Wherein The closest point of approach time is expected for aircraft i and j, Is the relative position vector of aircraft i and j, Is the relative velocity vector for aircraft i and j.
  8. 8. The method for adaptively adjusting weights based on quantitative assessment of collision among aircraft according to claim 1, wherein in the method S2, all aircraft records are selected as a research aircraft set in a research air domain, the research aircraft set is divided into a plurality of aircraft combinations by a collision entropy calculation model, each aircraft combination comprises two aircraft, and each aircraft combination is calculated at a research moment Is to study the internal study time of airspace Is collected by each aircraft combination of the research aircraft collection to obtain the total conflict entropy 。
  9. 9. The method for adaptive adjustment of weight based on quantitative assessment of collision between aircraft according to claim 1, wherein the weight correction value The expression is as follows: , wherein, A reference weight or an initial static weight preset for the conflict safety class index; 、 、 、 A conflict entropy threshold value of four levels of low, medium, high and critical, wherein the conflict entropy threshold value interval comprises ; 、 For the weight-up parameter to be a weight-up parameter, ; 、 Is a smoothing factor; Is a hyperbolic tangent function used to ensure a smooth transition of weights around the collision entropy threshold.
  10. 10. The method for adaptively adjusting and processing weights based on quantitative assessment of collision among aircrafts according to claim 2, wherein the number of the collision safety indexes is one, and the initial static weight preset by the collision safety indexes is The number of the non-safety indexes is m-1, and the preset initial static weights are sequentially as follows To study the time of day Calculating corresponding acquisition weight correction value Calculating to obtain dynamic weight As a study time Weight of conflicting security class indexes of (1), study time Dynamically adjusting the sum of the weights of all the unsafe class indexes to be 。

Description

Weight self-adaptive adjustment processing method based on inter-aircraft conflict quantitative evaluation Technical Field The invention relates to the field of dynamic adjustment of safety and non-safety index weights in an aircraft research airspace, in particular to a weight self-adaptive adjustment processing method based on quantitative evaluation of collision among aircrafts. Background Airspace is a particular geographic spatial range in which aircraft (including unmanned aircraft, including passenger aircraft, transport aircraft, helicopters, etc., and unmanned aircraft, including unmanned aircraft, etc.) operate. With the rapid development of unmanned aerial vehicle logistics transportation, civil aviation passenger and cargo transportation and the like, more and more aircrafts in an airspace are required, the aircrafts in the airspace are busy and operate at different times (mainly, the aircrafts are gathered in the airspace and risk is increased), different safety risks are presented, and the maximum efficiency of all the aircrafts in the airspace is the target of current airspace use research under the condition of ensuring safety. Therefore, how to conflict safety consideration and non-safety (indexes such as efficiency, economy, profitability and the like are core indexes) consideration of the aircraft in the airspace are technical problems before airspace use, so that the safety operation of the aircraft in the airspace is core consideration, the non-safety index consideration is better adapted on the basis of ensuring the safety operation of the aircraft, namely the safety operation of the aircraft is core and other non-safety indexes are considered. In order to realize the safe operation of the aircraft in the airspace as a core and consider the safe and efficient evaluation purposes of other unsafe indexes, the conflict safe and unsafe indexes are required to be effectively evaluated, the traditional method adopts static or quasi-static weights to set the weights of the two indexes, and because the operation condition of the aircraft in the airspace is dynamic, the operation of the aircraft in the airspace has the characteristics of strong dynamic and change, the static weights cannot effectively reflect the operation risk, so that the evaluation method and the result are lagged, and even the safe core decision is influenced. In the evaluation decision of core safety and efficiency in an aircraft operation space domain, the traditional static or quasi-static weight method is inapplicable, and research on a method for adjusting the dynamic weight of the core safety in the adaptive space domain is needed, so that the dynamic weight adjustment of the core requirement of the aircraft safety operation in the space domain is realized, and the core foundation of the safety operation in the space domain is ensured. Disclosure of Invention The invention aims to provide a weight self-adaptive adjustment processing method based on inter-aircraft conflict quantitative evaluation, which is used for obtaining conflict entropy of two aircrafts based on inter-aircraft conflict quantitative evaluation, then calculating and obtaining total conflict entropy of a research aircraft set in a research space domain, carrying out real-time quantitative evaluation on conflict risks in the space domain, dynamically adjusting weights of conflict safety indexes based on dynamic weight adjustment rules, and carrying out self-adaptive adjustment on the weights of the conflict safety indexes when the operation conflict risks of aircrafts in the space domain are increased, thereby ensuring core requirements of safe operation in the space domain, carrying out constraint adjustment on two indexes of non-safety type based on an operation index system and preset initial static weights, and providing important technical support for quantitative evaluation and decision of the safety of the core in the space domain and taking account of efficiency. The aim of the invention is achieved by the following technical scheme: A weight self-adaptive adjustment processing method based on the quantitative assessment of collision among aircrafts comprises the following steps: S1, constructing a conflict entropy calculation model taking space adjacency, relative motion state and time urgency as key parameters, acquiring key parameter data of two aircrafts i and j in a research airspace, inputting the key parameter data into the conflict entropy calculation model, and calculating to obtain conflict entropy of the two aircrafts i and j. S2, selecting a research aircraft set in a research airspace, dividing the research aircraft set into a plurality of aircraft combinations according to two aircraft as one aircraft combination by a conflict entropy calculation model, and calculating to obtain the total conflict entropy of all aircraft combinations of the research aircraft set in the research airspace at the research moment。 S3, constructing a