Research And Design Of Image Transmission System For Micro UAV

Micro unmanned aerial vehicle(MAV) is a kind of aircraft that controlled by the wireless remote control equipment,there is a great use of value in the field of national defense and civilian applications.The wireless image transmission system is the main part of MAV.The effect of image transmission determines the performance of minitype unmanned aerial vehicle.Therefore,it is a great significant of reserching on wireless image transmission system of MAV.The completion of the main work and achievements are as follows.(1)To focus on the microprocessor module hardware system design, choose i.MX6Q ARM architecture as the main processor chip,and low-power system to meet the demand.Based on this hardware platform to achieve five modules,such as a microprocessor, power supply, video acquisition and processing, and wireless transmission network and ETHERNET,established architectures MAV image transmission system.(2)Determing the bootloader transplant according to the Linux boot sequence, Linux kernel and file system migration and the associated driver porting development process. Construction of the operating system platform of MAV image transmission system.(3)To research and development of streaming media server:put VPU modules of the i.MX6Q into FFmpeg,passed through cutting, compile and configure to get an efficient streaming media server that can running on the development board. To achieve the image acquisition and image coding functions of image transmission system of MAV.(4)Olsrd routing quality algorithm is not the optimal route at interchange of signal zero boundary point and multi-point,that will cause overall system performance degradation,as a consequence the quality of the routing algoruthm is improved.The results shows that the quality of the new routing algorithm can better enhance the transmission distance and improve transmission quality.Finally,after a variety of experimental environment,many tests were conducted in accordance with a variety of networking mode.The results show thatrthe basic functions of the entire MAV image transmission system are runing well,and the system is operating normally during the experiment.