Design Of Unmanned Aerial Vehicle Flight Monitoring System

With the advantages of simple operation,flexible mobility,low requirements for landing and takeoff sites,and no casualties when performing dangerous missions,uav has not only performed well in the military field,but also been widely used in the civilian field.As the "central brain" of the uav,the flight monitoring system can realize the flight status monitoring and flight control of the uav,and In-depth study of the key technologies involved in the flight monitoring system is of great significance to improve the performance efficiency and guarantee the flight safety of uav.Because of the uav flight control system have portability is not strong,the navigation map shows not intuitive and does not support multiple uav real-time monitoring,in this topic,use including Mav Link communication protocol,the generic data structure,FFmpeg video processor,QPainter drawing tools,osg Earth map,such as technology,in the Qt platform has developed a fully functional,good portability and the ability to machine the real-time monitoring of uav flight control system.Firstly,the research status of uav flight monitoring system is introduced in detail,the characteristics and shortcomings of the current flight monitoring system are summarized,the overall design scheme and the functions of each module of the system are determined according to the application requirements of the flight monitoring system,and the main interface and the interface of each module of the system are designed.Then,the design and realization of the main functions of the flight monitoring system are described in detail.First point is the realization of data communication and video display functions.Mav Link protocol is selected as the communication protocol between the system and the uav,and the system's functions such as data transceiver,data analysis and packet grouping,aerial video acquisition and display are designed and realized.The second is the realization of data visualization display and storage function,mainly including the design of virtual instrument and data display scale,the realization of uav attitude 3d model display and telemetry data storage function.The third is navigation map loading and track planning functions,including the construction of 3d digital earth,the loading of high-precision map blocks,the design and implementation of track planning and track management functions.Finally,test the actual connection between the flight monitoring system and the uav,the test results show that the flight control system can simultaneously and more drones to establish a good communication connection,can receive and display real-time transmit the flight data and aerial video data from uav,can use the 3d model to realize uav flight attitude and visualization of real-time location,can finish high precision load and block the map to realize path planning function on the map.