The Research Of Scheduling Algorithm Optimization And Simulation For Special Vehicle Of Air-freight

In recent years, with the rapid development of the aviation industry, the scale of the airport is increasing, there are more and more flight delays caused by unreasonable Special Vehicle Scheduling at Airports, the improvement of airport operation has caught the aviation industry's attention. Flight delays can cause the uncertain arrival time, it will lead to ground special vehicles service congestion, and the process poses challenge for the efficiency of the airport operation. Therefore, through the efficient real-time scheduling of special ground freight vehicles, to improve operational efficiency of airport operations and cargo operations is very important; the main work is as follows:Thesis studies the operation process of airport freight special vehicles, on the basis of the three Vehicle Scheduling simplified model and according to the actual operation of the airfield special vehicles, it proposes time window method into the vehicle scheduling process, finally,it establishes Special vehicle scheduling mathematical model with a mixed time windows constraint. The genetic algorithm is applied to solve the model, combined with the actual airport operations and considering the objective function and constraints, the algorithm design is made, the flight information data is used to solve the model, then based on the initial optimization results and according to the received real-time dynamic flight information, to design the local optimization algorithm to optimize the result again, and finally get real dynamic scheduling result. Experimental results show that the optimization results of dynamic scheduling model is obvious. Finally, in order to facilitate the operation of the airport staff, to meet the real needs of users, a special vehicle scheduling system is designed to improve timeliness, validity and accuracy of the scheduling.