Design And Implementation Of UAV Ground Terminal Based On ARM

At present,the monitoring and inspection of oil pipelines have the problems of cumbersome operation process and large resource consumption.This paper designs a UAV ground terminal system based on ARM,which can monitor and inspect oil pipelines.The hardware part of UAV ground terminal designed in this paper selects ARM Cortex-A9multi-core processor.CPU function module,Storage Module Circuit,communication interface circuit,HD video display interface circuit and other module circuit are designed.The high-definition video processing is completed,and the diversification of media performance is realized.The software part is based on Linux operating system,using ubuntu14.02 version.In the text compiler VIM,the software design of data transmission layer,data management layer and user operation layer is completed by using C language and C + + language programming.The data transmission between UAV and ground terminal,the decoding of high-definition video data,the storage and analysis of flight,and the construction of user interface are realized.At the same time,the design of electronic map is realized based on Qt(cross-platform C + +graphical user interface application framework),and the functions of map positioning,translation,zooming,track drawing and visual field following are completed.Aiming at the problem that the existing UAV ground terminal cannot receive video data synchronously due to network delay,this paper proposes a bidirectional time stamp swapping method.This method sets the reference clock,binds the data block to the timestamp,and reorganizes the video data frame by reading the timestamp value to achieve the synchronous reception of video data.The UAV ground terminal system designed in this paper not only improves the efficiency of oil pipeline monitoring and system resource utilization,but also strengthens the safety of inspection,which has great application value.