Research On The Construction Method Of Large UAV Collision Avoidance Decision Scheme

It is estimated that the global UAV market will have unlimited development prospects in the next 10 years.Only the domestic military UAV market and consumer UAV market are expected to reach $9.866 billion and $12.135 billion respectively in 2025.UAV can be said to be one of the most representative high-tech products in China.In fact,as early as2019,China Aviation Institute of Comprehensive Technology,as a facilitator and pioneer of aviation industry standardization,and JD Group announced the establishment of a UAV testing center.Both sides will carry out high-level bilateral cooperation on UAV standard system and logistics UAV industry application based on their own advantages.It is expected that more projects will be established in the future.As an important breakthrough of 5G+ industrial Internet,it will drive the innovation and development of all disciplines and categories of Chinese industry.Under the research background of the big era,this paper carries out the research on the construction method of UAV collision avoidance decision scheme through the following aspects.First of all,the status quo of the UAV and the air traffic control system are studied,the airspace environment that the UAV may encounter is comprehensively analyzed,and various factors that affect the results of the decision-making scheme of the UAV are summarized.These factors are classified and processed,and the index system of the avoidance strategy scheme of the UAV is completed on the basis of the analytic hierarchy process.Secondly,the types,advantages and disadvantages of the current domestic and foreign mainstream weighting methods are briefly introduced,and the fuzzy analytic hierarchy process(AHP)and entropy weight method are used to obtain the subjective and objective weight values of the evaluation index system model based on the UAV avoidance decision scheme.In view of the advantages and disadvantages of subjective and objective weighting methods and combined with the actual situation,the combined weighting method based on maximum deviation is applied to the decision-making scheme of UAV collision avoidance.This paper introduces the basic principle of objective function used in combinatorial weighting method,focuses on the principle of maximizing deviation and its current application fields,and solves it by Lagrange multiplier method.Finally,the combined weighting method is used to determine the final weight value and make a comparative analysis.Then,the fuzzy comprehensive evaluation is carried out on the weight value obtained by the combination weighting method based on maximizing the deviation.Through the statistics of 20 experts’ opinions,the fuzzy comprehensive evaluation method is used to test the evaluation index system model of UAV avoidance decision.The evaluation results show that the calculated weight value and the selected representative factors are recognized by most experts,which proves that the method has a wide application value in the construction of UAV avoidance decision-making scheme.Finally,for unmanned aerial vehicle(uav)simulation validation of collision avoidance decision-making plan established by applying the multi-objective nonlinear programming problem of LFPP decision-making method for multiobjective conflict has carried on the simulation,the simulation results show that the method in known to all sorts of aircraft under the premise of basic situation,it is reasonable to build drones build collision avoidance decision-making scheme to provide decision basis for atc and pilot,satisfies the conditions of unmanned aerial vehicle(uav)actual flight collision avoidance decision-making needs.