没有合适的资源?快使用搜索试试~ 我知道了~
资源推荐
资源详情
资源评论
摘要
摘要
随着网络、通信、多媒体技术以及微电子技术的迅速发展,视频监控系统得
到了越来越广泛的应用。
本文设计并实现了一个基于 FPGA 的视频监控系统。论文首先在 FPGA 中设
计 I2C 总线配置模块对视频 ADC 芯片 ADV7181 进行合理的配置,然后详细介绍
了视频信号的处理过程,包括 ITUR656 视频解码、视频插值、解交织和色度空间
变换。经过处理后的视频,分成两路。一路通过 VGA 接口,按照设计好的 VGA
时序,在本地显示器上显示视频,从而实现本地视频监控,且给出了本地视频监
控显示效果图;另外一路经过压缩后在 SRAM 中缓存,利用 Nios II 软核为核心
的 SOPC 控制,将缓存中压缩好的视频数据通过网络传输到网络终端,从而实现
网 络 远 程 监 控 。 论 文 的 最 后 , 简 单 介 绍 了 LabWindows 软 件 开 发 环 境 , 用
LabWindows 软件开发了接收端的显示程序,并给出了接收端远程视频监控显示
效果图。
本视频监控系统在局域网内进行了测试验证,结果表明,系统能实现本地视
频监控和网路视频监控的功能。
关键词:FPGA 视频监控 Nios II SOPC
Abstract
Abstract
As the rapid development of the network, communication, medium and the
technique of micro-electronics, the Video Monitoring system is applied more and more
widely.
This paper designs and realizes a Video Monitoring system based on FPGA. Firstly,
the paper designs a I2C-config module to configure the ADC chip ADV7181 properly.
Then introduces the transaction process of the video in detail,including the ITUR656
decode module, Interpolation module, de-interlacing module and color space convert
module. The processed video is divided into two paths. One path is that the video passes
through the VGA-timing block and is displayed in CRT through the VGA interface. So
it can realize the function of local-area video monitor and also has given out the result
displayed in local-area. The other path is that the video passes through the compress
module and is saved in SRAM. Then the compressed video in the SRAM is transmitted
to network using the SOPC system which takes the Nios II as core. So it can realize the
function of network video monitor. In the end, paper gives briefly introduction of the
software LabWindows and designs the displaying software of the network
receiver,and also gives out the result displayed in the network receiver.
This Video Monitoring system has been tested and verified in the Lan.The result
shows that the system can realize the function of local-area and network video monitor.
Key words: FPGA Video Monitor Nios II SOPC
目录
目录
基于 FPGA 的视频监控系统的设计与实现
摘要....................................................................................................................................I
Abstract............................................................................................................................III
目录..................................................................................................................................V
第一章 绪论......................................................................................................................1
1.1 选题目的及研究内容..........................................................................................1
1.2 国内外研究现状..................................................................................................2
1.2.1 视频监控系统组成....................................................................................2
1.2.2 视频监控的发展概述................................................................................2
1.2.3 视频监控的发展趋势
[2]
..............................................................................3
1.3 本文主要工作及内容安排..................................................................................4
第二章 系统方案设计......................................................................................................7
2.1 视频信号的制式
[4]
................................................................................................7
2.2 色彩空间模型......................................................................................................8
2.3 系统总体方案......................................................................................................9
2.3.1 方案论证..................................................................................................10
2.3.2 系统功能框图..........................................................................................11
2.3.3 系统硬件结构图......................................................................................11
第三章 视频采集和视频处理........................................................................................15
3.1 视频采集芯片 ADV7181 功能特性..................................................................15
3.1.1 ADV7181 简介.........................................................................................15
3.1.2 ADV7181 解码过程.................................................................................15
3.1.3 ADV7181 典型时序.................................................................................16
3.2 视频采集芯片 ADV7181 配置..........................................................................18
3.2.1 ADV7181 控制寄存器.............................................................................18
3.2.2 I2C 总线...................................................................................................18
3.2.3 I2C 程序设计...........................................................................................19
3.3 视频数据处理....................................................................................................22
3.3.1 获取的视频流格式介绍..........................................................................22
3.3.2 ITUR656 解码..........................................................................................23
3.3.2 色度空间变换
[16]
.......................................................................................27
第四章 视频 VGA 显示及网络传输..............................................................................29
4.1 视频的 VGA 显示..............................................................................................29
4.1.1 VGA 接口简介
[17]
.....................................................................................29
4.1.2 VGA 典型时序
[18]
.....................................................................................31
4.1.3 VGA 时序设计.........................................................................................32
4.1.4 VGA 监控效果.........................................................................................35
4.2 网络传输的平台................................................................................................35
4.2.1 SOPC 技术及 Nios II 简介.......................................................................35
4.2.2 SOPC 系统开发流程...............................................................................38
4.2.3 μC/OS-II
[21]
和 LWIP 简介
[22]
....................................................................40
4.3 网络传输的设计实现........................................................................................41
4.3.1 网络控制器 DM9000A............................................................................41
4.3.2 Socket 套接字...........................................................................................42
4.3.3 视频数据网路传输设计..........................................................................43
目录
第五章 LabWindows/CVI 简介及接收端显示程序设计..............................................49
5.1 LabWindows/CVI 简介
[25]
..................................................................................49
5.1.1 LabWindows/CVI 软件的特点................................................................49
5.1.2 LabWindows/CVI 设计步骤....................................................................49
5.2 接收端显示程序设计........................................................................................50
5.3 接收端视频监控效果图....................................................................................52
结束语.............................................................................................................................53
致谢.................................................................................................................................55
参考文献.........................................................................................................................57
研究成果.........................................................................................................................59
附录 系统实物图............................................................................................................61
剩余60页未读,继续阅读
资源评论
- gojerry2012-02-15内容介绍不详细,而且不是uclinux,不过谢谢楼主的分享精神
peggylen
- 粉丝: 0
- 资源: 17
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功