内窥镜式视频搜救器的嵌入式系统设计与实现
发布时间：2019-04-16 19:23
【摘要】：当自然灾害或人为事故发生并造成大量建筑物坍塌时,往往有受伤人员被困在废墟之下。要及时展开救援工作,需获得被困人员所在的位置、周围环境以及人员的身体状况,此时,若能获得被困人员的视频信息,许多问题都将迎刃而解。 受工业内窥镜的启发,本文设计了这样一款内窥镜式的视频搜救器,它由一根可伸缩的长杆和底部的控制盒组成,长杆头部装有一个云台,云台上装有CMOS摄像头。云台由两个电机组成,两个电机分别按两个轴向转动,使得摄像头有较大范围的视角。底部控制盒中装有LCD显示屏,ARM11控制板以及电池。摄像头所获取的图像信息可以直接在显示屏上进行实时的显示。通过ARM11中的硬件多媒体编解码模块,可将视频编码成H.264格式保存至SD卡中,通过硬件解码,也可将SD卡中所保存的视频文件进行解码,并且回放。另外可拍照,将捕捉的画面保存成JPEG格式的文件,也可方便地进行查看所保存的图片文件。通过控制盒上的按键,可控制云台的运动。 本文主要的工作包括两部分：视频和电机控制软件的设计和控制板的硬件电路设计。 硬件电路部分,选用型号为UT6410的ARM11核心板,它基于三星公司型号为S3C6410的ARM11芯片。设计了外围的电源电路、电机控制电路、摄像头接口电路、LCD接口电路、SD卡接口电路、串口电路设计,绘制了系统的PCB板、制版和硬件电路的调试。 软件部分,基于嵌入式Linux系统,在Qt下编写了程序,其包括视频实时显示,视频编码存储,解码播放,图片存储,图片回放等功能。拥有图形化的操作界面。为控制电机,编写了相应的驱动程序以及上层的控制程序。
[Abstract]:When natural disasters or man-made accidents occur and cause a large number of buildings to collapse, injured people are often trapped under the rubble. In order to carry out the rescue work in time, it is necessary to obtain the location, surrounding environment and physical condition of the trapped personnel. At this time, if we can obtain the video information of the trapped people, many problems will be solved. Inspired by the industrial endoscope, this paper designs a video search and rescue device with an inner mirror, which consists of a retractable long rod and a control box at the bottom. The head of the long pole is equipped with a cloud head and a CMOS camera is installed on the head of the long pole. The cloud table is composed of two motors, and the two motors are rotated in two axes respectively, which makes the camera have a wide range of angles. The bottom control box is equipped with LCD display, ARM11 control board and battery. The image information obtained by the camera can be displayed directly on the display screen in real time. Through the hardware multimedia codec module in ARM11, the video can be encoded into H.264 format and stored in SD card. The video files saved in SD card can also be decoded and played back by hardware decoding. In addition, you can take pictures, save the captured images in JPEG format, and view the saved picture files easily. The movement of the head can be controlled by the buttons on the control box. The main work of this paper includes two parts: the design of video and motor control software and the hardware circuit design of control board. Hardware circuit part, select model UT6410 ARM11 core board, it is based on Samsung model S3C6410 ARM11 chip. The peripheral power circuit, motor control circuit, camera interface circuit, LCD interface circuit, SD card interface circuit and serial port circuit are designed. The PCB board, plate making circuit and hardware circuit of the system are drawn. In the software part, based on embedded Linux system, the program is written under Qt, which includes video real-time display, video encoding storage, decoding and playback, picture storage, picture playback and so on. Has a graphical interface. In order to control the motor, the corresponding driver program and the upper control program are programmed.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1
本文编号：2459031
[Abstract]:When natural disasters or man-made accidents occur and cause a large number of buildings to collapse, injured people are often trapped under the rubble. In order to carry out the rescue work in time, it is necessary to obtain the location, surrounding environment and physical condition of the trapped personnel. At this time, if we can obtain the video information of the trapped people, many problems will be solved. Inspired by the industrial endoscope, this paper designs a video search and rescue device with an inner mirror, which consists of a retractable long rod and a control box at the bottom. The head of the long pole is equipped with a cloud head and a CMOS camera is installed on the head of the long pole. The cloud table is composed of two motors, and the two motors are rotated in two axes respectively, which makes the camera have a wide range of angles. The bottom control box is equipped with LCD display, ARM11 control board and battery. The image information obtained by the camera can be displayed directly on the display screen in real time. Through the hardware multimedia codec module in ARM11, the video can be encoded into H.264 format and stored in SD card. The video files saved in SD card can also be decoded and played back by hardware decoding. In addition, you can take pictures, save the captured images in JPEG format, and view the saved picture files easily. The movement of the head can be controlled by the buttons on the control box. The main work of this paper includes two parts: the design of video and motor control software and the hardware circuit design of control board. Hardware circuit part, select model UT6410 ARM11 core board, it is based on Samsung model S3C6410 ARM11 chip. The peripheral power circuit, motor control circuit, camera interface circuit, LCD interface circuit, SD card interface circuit and serial port circuit are designed. The PCB board, plate making circuit and hardware circuit of the system are drawn. In the software part, based on embedded Linux system, the program is written under Qt, which includes video real-time display, video encoding storage, decoding and playback, picture storage, picture playback and so on. Has a graphical interface. In order to control the motor, the corresponding driver program and the upper control program are programmed.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1
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