UAV Route Planning Virtual Vision Simulation System Design

As the main part of mission planning and the importance in the field of unmanned aerial vehicle(UAV),track planning technology has become the main research topic of some countries' scientific research institutions.However,it is extremely difficult to verify the route of UAV.The traditional two-dimensional simulation system has been unable to meet the technical requirements of aircraft at the present stage.In order to solve the above problems,this paper combines the virtual reality technology with the track planning technology.And based on the virtual Visual development tools such as Vega Prime,Multigen Creator and Visual Studio Net2005 development environment,the research on the virtual visual simulation display of the UAV track are carried out,in order to realize the purpose of evaluating the UAV route and attitude.This thesis studies the virtual visual simulation system of UAV flight route.Firstly,the research background and significance of this topic are briefly introduced.The route planning,virtual reality technology and current development are introduced,and the development route and environment are proposed.Then,the characteristics of Vega Prime and digital map are elaborated.According to the requirements of the virtual scene,the scene objects are modeled,mainly including: 3D terrain modeling,wave modeling,UAV modeling,ship and island modeling.This paper focuses on the modeling technology of 3D terrain and wave modeling.Secondly,the trajectory planning technology and the flight mode in the virtual environment are discussed.Based on the threat factors such as terrain and man-made,this paper establishes the threat model,introduces the node set,and uses the traditional Dijkstra algorithm to optimize the flight route and obtain the rough route.The node set is obtained,the rough route is segmented,and the adaptive genetic algorithm and the Bessel curve to further optimize the route to obtain the final route.On the basis of the route planning results and the control of autonomous flight,three motion modes are set for the UAV,including automatic control mode,game mode(Interactive mode)and playback mode.The automatic control mode verifies the flight route mentioned above,the game mode is to experience the reality of the three-dimensional space constructed by the virtual reality technology,and the playback is to further evaluate the flight route.The interactive interface is used to control the flight mode,and the mouse and keyboard are used to control the UAV's flight attitude.The real-time display of UAV's positioninformation,attitude information and flight path is realized.In order to achieve better virtual effects,this design also adds collision detection,fire and smoke effects to the UAV collision,adding a sense of reality to the virtual environment.Finally,according to the above design ideas,the final goal of UAV track planning virtual visual simulation is realized through programming.