Research And Implementation Of Uav Aerial Simulation Technology

Unmanned aerial due to its clear footage,distance,wide field of vision and filming in the film and television production occupying an increasingly important position.Unmanned aerial is controlled by fly hand and cloud disk hand.The manipulation technology of fly hand and cloud disk hand directly affect the image quality.In some complex environment,we need more strict technical requirements for the operator.The difficulty of the uav aerial simulation technology implementation mainly lies in establishing unmanned aerial vehicle(uav)and cloud deck,flight trajectory pattern,degree of realistic visual system and the complexity of the system building.This main research purpose of this article is to accomplish the uav aerial simulation technology.To achieve this goal,the main work accomplished in this paper is as follows:Firstly,a uav aerodynamic model has been built.This paper decomposed the calculation of uav aerodynamic force into several parts: main rotor,fuselage,tail rotor,vertical tail,and horizontal tail.Secondly,in order to accurately control simulation vehicles,it is necessary to do different operation control for the aircraft and its components under different flight patterns,including the aircraft simulation,simplified aircraft flight operation and cloud deck controlled.The fly hand and cloud disk hand respectively take control of unmanned aerial vehicle's flight and the camera's shooting,by separating the craft's control and cloud deck's control.Thirdly,designing four kinds of trajectory model according to the people(including directors and fly hand),including the trajectory of edit mode for the directors,simplified edit mode and flight simulation training mode for the fly hand and cloud disk hand,and playback and edit mode for the intended trajectory.Fourthly,to improve the fidelity of the scene,this paper designed a uav simulated flight environment modeling method.The flight environment modeling method was analysed and designed including landscape module,atmosphere module,windfield module,and.Fifthly,this paper designed the input and output of the system.After analyzing what can be done by the joystick,a data mapping between joystick and uav control system was given.The method how to output uav flight data is designed,a format of output data was given.At last,a uav flight simulation system was implemented.In the performance test,the system fps is above 40.The function test shows that,the control of uav in system had the same feedback mode with the real uav control system.