基于Cortex-A9的激光雷达远程监控系统研究设计

发布时间：2018-01-14 12:34

本文关键词：基于Cortex-A9的激光雷达远程监控系统研究设计　出处：《北方民族大学》2017年硕士论文　论文类型：学位论文

【摘要】：本文在研究和分析了国内外激光雷达的研究现状和最新进展以及Android移动终端操作系统的基础上,提出了一种基于Android架构的激光雷达的远程监控系统的研究与设计。实现了对激光雷达探测数据的远程获取和控制。本文采用Samsung公司的ARM Cortex-A9(FS4412)嵌入式处理器为核心,设计了基于芯片AD9235的数据采集系统。同时基于Android4.0,设计了一套远程终端APP,实现了对激光雷达的数据采集、处理、存储、显示以及对激光雷达、望远镜的远程控制等操作。在远程终端APP设计方面,主要完成了对Android开发环境的搭建,根据传输协议,实现了Android操作系统下驱动程序的编写,并在Android源码内,修改了JNI层和HAL层代码。实现了对激光雷达数据的处理、显示以及远程控制。同时,在研究Mie散射激光雷达数据反演方法的基础上,利用Fernald算法编制了消光系数曲线与THI(Time-Height-Intensity)图程序,而且设计了人机交互界面,实现了对大气气溶胶消光系数轮廓线,THI图的显示,完成了对望远镜和激光器的远程控制。本文的创新之处在于将嵌入式系统与激光雷达控制系统有机的结合起来,实现了对激光雷达的数据采集。同时,基于Android操作系统,设计了一套远程终端APP,实现了对激光雷达系统数据的处理、显示以及远程控制等操作。
[Abstract]:In this paper, based on the research and analysis of the domestic and foreign lidar research status and latest progress, as well as the Android mobile terminal operating system. This paper presents the research and design of a remote monitoring system of lidar based on Android architecture, and realizes the remote acquisition and control of laser radar detection data. ARM. Cortex-A9. FS4412) embedded processor as the core. A data acquisition system based on chip AD9235 is designed. At the same time, based on Android 4.0, a remote terminal APP is designed to realize the data acquisition, processing and storage of lidar. Display and remote control of lidar and telescope. In the design of remote terminal APP, the construction of Android development environment is mainly completed, according to the transmission protocol. The driver program under Android operating system is realized, and in the Android source code, the code of JNI layer and HAL layer is modified, and the processing of lidar data is realized. Display and remote control. At the same time, based on the study of Mie scattering Lidar data inversion method. The program of extinction coefficient curve and time-Height-Intensitygraph is compiled by Fernald algorithm, and the man-machine interface is designed. The display of the contour of atmospheric aerosol extinction coefficient (Thi) is realized. The remote control of the telescope and laser is completed. The innovation of this paper is to combine the embedded system and the laser radar control system organically to realize the data acquisition of the laser radar. At the same time. Based on Android operating system, a set of remote terminal (app) is designed, which can process, display and control the data of lidar system.
【学位授予单位】：北方民族大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN958.98

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