基于FFMPEG技术在起重机安全监控系统上的应用与研究
发布时间：2018-11-25 14:42
【摘要】：随着嵌入式Linux技术、图像采集技术和网络视频传输技术的飞速发展，以及人们安全意识的不断提高，如何解决重点区域和大型机械的安全监控成为一个热门的课题。因此，为大型起重机安装高效可靠的视频采集与监控系统已经迫在眉睫。 本论文针对上述问题，采用TI公司的DM3730双核处理器为硬件平台，，围绕FFMPEG源码的分析及移植，完成视频的编解码技术，旨在研制出一款基于嵌入式Web服务器的起重机安全监控系统。将起重机的工作状态以数据的形式和现场施工人员的操作情况的视频信号传至远端的监控室，为了及时的应对起重机的各种突发状况做充分的准备。实现过程主要包括以下内容： 1.系统的硬件设计。主要包括：处理器、串口ISP、USB摄像头等。 2.嵌入式Linux系统软件开发平台的搭建。主要包括Bootloader的移植、交叉编译环境的搭建、Linux内核的裁剪编译和移植。 3、嵌入式Web服务器Boa的实现及QT界面的设计。 4、FFMPEG源码的分析及移植，H.264的设计和移植，通过RC4加密算法实现了FFMPEG视频的加解密算法。 本文研究的内容是起重机的视频采集与监控系统，通过DM3730芯片内置的硬件编解码模块支持FFMPEG的视频图像编解码技术和视频加解密算法。采用Qt软件和嵌入式SQLite数据库相结合的办法完成了对起重机运行状态数据的采集和存储，同时在目标板上移植了嵌入式Web服务器，监控端可以利用Internet浏览器的以网页的形式访问WEB服务器，得到起重机运行状态和操作情况的监控画面，最终实现了起重机安全监控系统。
[Abstract]:With the rapid development of embedded Linux technology, image acquisition technology and network video transmission technology, as well as the continuous improvement of people's security awareness, how to solve the security monitoring of key areas and large machinery has become a hot topic. Therefore, it is urgent to install an efficient and reliable video capture and monitoring system for large cranes. In order to solve the above problems, this paper uses the DM3730 dual-core processor of TI Company as the hardware platform, and completes the video coding and decoding technology around the analysis and transplantation of the FFMPEG source code. In order to develop a crane security monitoring system based on embedded Web server. The working status of the crane is transmitted to the remote control room in the form of data and the video signal of the operator on the site, in order to make sufficient preparation for all kinds of emergency situations of the crane in time. The implementation process mainly includes the following contents: 1. Hardware design of the system. Mainly include: processor, serial port ISP,USB camera and so on. 2. The building of embedded Linux system software development platform. Mainly includes the Bootloader porting, cross-compiling environment, Linux kernel tailoring and transplanting. 3. The realization of embedded Web server Boa and the design of QT interface. 4FFMPEG source code analysis and transplantation, H. 264 design and transplantation, through the RC4 encryption algorithm to achieve FFMPEG video encryption and decryption algorithm. The research content of this paper is the video acquisition and monitoring system of crane, which supports FFMPEG video coding and decoding technology and video encryption and decryption algorithm through the hardware codec module built into DM3730 chip. The method of combining Qt software with embedded SQLite database is used to complete the collection and storage of crane running state data. At the same time, embedded Web server is transplanted on the target board. The monitoring end can use the Internet browser to access the WEB server in the form of web pages, get the monitoring picture of the crane running state and operation, and finally realize the crane safety monitoring system.
【学位授予单位】：天津理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH21;TP277
[Abstract]:With the rapid development of embedded Linux technology, image acquisition technology and network video transmission technology, as well as the continuous improvement of people's security awareness, how to solve the security monitoring of key areas and large machinery has become a hot topic. Therefore, it is urgent to install an efficient and reliable video capture and monitoring system for large cranes. In order to solve the above problems, this paper uses the DM3730 dual-core processor of TI Company as the hardware platform, and completes the video coding and decoding technology around the analysis and transplantation of the FFMPEG source code. In order to develop a crane security monitoring system based on embedded Web server. The working status of the crane is transmitted to the remote control room in the form of data and the video signal of the operator on the site, in order to make sufficient preparation for all kinds of emergency situations of the crane in time. The implementation process mainly includes the following contents: 1. Hardware design of the system. Mainly include: processor, serial port ISP,USB camera and so on. 2. The building of embedded Linux system software development platform. Mainly includes the Bootloader porting, cross-compiling environment, Linux kernel tailoring and transplanting. 3. The realization of embedded Web server Boa and the design of QT interface. 4FFMPEG source code analysis and transplantation, H. 264 design and transplantation, through the RC4 encryption algorithm to achieve FFMPEG video encryption and decryption algorithm. The research content of this paper is the video acquisition and monitoring system of crane, which supports FFMPEG video coding and decoding technology and video encryption and decryption algorithm through the hardware codec module built into DM3730 chip. The method of combining Qt software with embedded SQLite database is used to complete the collection and storage of crane running state data. At the same time, embedded Web server is transplanted on the target board. The monitoring end can use the Internet browser to access the WEB server in the form of web pages, get the monitoring picture of the crane running state and operation, and finally realize the crane safety monitoring system.
【学位授予单位】：天津理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH21;TP277
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相关期刊论文 前9条
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