非压缩数字视频监控系统的交换控制研究
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摘要
随着计算机及网络技术的迅速发展,视频监控系统从最初的模拟监控系统发展到模拟数字混合系统,并步入第三代全面数字化系统。现在即将进入第四代视频网络安防监控时代。
在我国,绝大多数的视频监控系统都不能互相联网,这使社会资源不能得到有效的利用。针对这种现状,研究与开发出的一套基于光纤网络的非压缩数字视频监控系统,包括视频图像的监控调度,跨省跨区域的视频信号、音频信号、报警信号等一系列监控信息的传输。本文对该系统进行了整体介绍,由于交换部分设计是方案设计的核心,故本文的重点是阐述交换节点上嵌入式文件系统平台和视频控制部分软件的设计与实现,这也是本人在课题设计中完成的主要工作。具体来说,本文主要的工作如下。
(1)阐述了该视频监控系统的光纤组网模式、非压缩视频信号特点,以及系统的软硬件设计方案;
(2)在交换节点上的嵌入式平台设计中,为了提高软件运行中对数据控制的有效性和实时性,针对本系统设计了一个嵌入式文件系统集群;
(3)实现交换节点上视频控制部分在嵌入式平台的软件设计,其主要由七个模块组成。该视频控制软件主函数的设计通过对四类数据结构的轮询,将输入数据结构中的数据经过组合运算得到的结果存入到输出结构之中,然后等待整个系统的硬件驱动设备对视频输出结构中的输出信息进行统一处理,这样减少了视频切换运算程序执行的复杂度,提高了系统运行效率;
(4)通过PC上的视频控制界面对交换节点的视频控制进程的测试过程,可以看到视频控制进程实现了只能启动一次进程的独占模式,从而避免输入输出错误。另外,界面下发键盘控制和配置数据测试时,从得到的打印信息可以看出该进程的可行性。
通过测试使用,本课题研究实现的视频监控系统可以很大程度的以网络化的方式进行事件的发现及处理,可以很好的实现远程异地高清晰度视频数据的传输、切换及视频图像控制信号的同步传输,在安防行业中有很好的使用价值。
With rapid developments of computer and network,the video monitoring system has experienced from the initial analog monitoring system to the analog-digital mix stage,and tends to the comprehensive digitization of third generation and the video monitoring system of fourth generation,namely,the monitoring system of the video network security & protection is coming.
Now,the majority of video monitoring systems cannot form a network in our country.So it is not effectively used for the social resources.In view of this status quo,a set of video security monitoring system based on fiber networks is researched and developed,including video surveillance and management,a series of monitoring signal,image video,audio signals,alarm signals and so on,transmission of inter-provincial and cross-regional.This article roundly introduces it,and mainly analyzes the designs and realizations of video control software and embedded file system platform on the switching nodes,these are also my main researches.The main accomplished work in this paper as follows:
(1)It describes the modes of fiber network,the characteristics of non-compress video signal and the designs of software and hardware about the video monitoring system.
(2)In order to improve real-time and effective control for the data in designs of embedded switching system on switching nodes,I design a cluster of file systems for this platform of embedded system.
(3)The software of video control on the embedded platform of switching node is designed and accomplished.It is mainly composed of seven modules.Its main function is that polling the four category data structures,computing the data of input data structures and save in the output data structures,then waiting the unified information processing through the whole hardware driver equipments.This can decrease the complexity of video switching operation procedures and improve the system efficiency.
(4)Through interface of PC test the video control system of switching node, we can see the process of the video control has exclusive mode of startup only once for avoiding the mistakes of input and output.And we can know the feasibility of process through the print information by the test of keyboard commands and configuration data.
Through the test and use of video monitoring system,it is proved that it can discover and handle cases based on network in a large degree,and can achieve good long-distance synchronous transmissions of high video clarity data,switching and control signals in the video images.So the system has a very good value in the industry of security & protection.
在我国,绝大多数的视频监控系统都不能互相联网,这使社会资源不能得到有效的利用。针对这种现状,研究与开发出的一套基于光纤网络的非压缩数字视频监控系统,包括视频图像的监控调度,跨省跨区域的视频信号、音频信号、报警信号等一系列监控信息的传输。本文对该系统进行了整体介绍,由于交换部分设计是方案设计的核心,故本文的重点是阐述交换节点上嵌入式文件系统平台和视频控制部分软件的设计与实现,这也是本人在课题设计中完成的主要工作。具体来说,本文主要的工作如下。
(1)阐述了该视频监控系统的光纤组网模式、非压缩视频信号特点,以及系统的软硬件设计方案;
(2)在交换节点上的嵌入式平台设计中,为了提高软件运行中对数据控制的有效性和实时性,针对本系统设计了一个嵌入式文件系统集群;
(3)实现交换节点上视频控制部分在嵌入式平台的软件设计,其主要由七个模块组成。该视频控制软件主函数的设计通过对四类数据结构的轮询,将输入数据结构中的数据经过组合运算得到的结果存入到输出结构之中,然后等待整个系统的硬件驱动设备对视频输出结构中的输出信息进行统一处理,这样减少了视频切换运算程序执行的复杂度,提高了系统运行效率;
(4)通过PC上的视频控制界面对交换节点的视频控制进程的测试过程,可以看到视频控制进程实现了只能启动一次进程的独占模式,从而避免输入输出错误。另外,界面下发键盘控制和配置数据测试时,从得到的打印信息可以看出该进程的可行性。
通过测试使用,本课题研究实现的视频监控系统可以很大程度的以网络化的方式进行事件的发现及处理,可以很好的实现远程异地高清晰度视频数据的传输、切换及视频图像控制信号的同步传输,在安防行业中有很好的使用价值。
With rapid developments of computer and network,the video monitoring system has experienced from the initial analog monitoring system to the analog-digital mix stage,and tends to the comprehensive digitization of third generation and the video monitoring system of fourth generation,namely,the monitoring system of the video network security & protection is coming.
Now,the majority of video monitoring systems cannot form a network in our country.So it is not effectively used for the social resources.In view of this status quo,a set of video security monitoring system based on fiber networks is researched and developed,including video surveillance and management,a series of monitoring signal,image video,audio signals,alarm signals and so on,transmission of inter-provincial and cross-regional.This article roundly introduces it,and mainly analyzes the designs and realizations of video control software and embedded file system platform on the switching nodes,these are also my main researches.The main accomplished work in this paper as follows:
(1)It describes the modes of fiber network,the characteristics of non-compress video signal and the designs of software and hardware about the video monitoring system.
(2)In order to improve real-time and effective control for the data in designs of embedded switching system on switching nodes,I design a cluster of file systems for this platform of embedded system.
(3)The software of video control on the embedded platform of switching node is designed and accomplished.It is mainly composed of seven modules.Its main function is that polling the four category data structures,computing the data of input data structures and save in the output data structures,then waiting the unified information processing through the whole hardware driver equipments.This can decrease the complexity of video switching operation procedures and improve the system efficiency.
(4)Through interface of PC test the video control system of switching node, we can see the process of the video control has exclusive mode of startup only once for avoiding the mistakes of input and output.And we can know the feasibility of process through the print information by the test of keyboard commands and configuration data.
Through the test and use of video monitoring system,it is proved that it can discover and handle cases based on network in a large degree,and can achieve good long-distance synchronous transmissions of high video clarity data,switching and control signals in the video images.So the system has a very good value in the industry of security & protection.
引文
[1]韩绍超.2005～2006年中国平安城市建设整体发展情况[EB/OL].http://media.ccidnet.com/art/2615/20061008/916051_1.html,2006
[2]Yibin Yang,Lilla Boroczky.A NEW ENHANCEMENT METHOD FOR DIGITAL VIDEO APPLICATIONS[J].IEEE Transactions on Consumer Electronics,2002.8:435-443
[3]平安城市建设的现状.2007年中国IT两会[EB/OL].http://www.ccw.com.cn/itlianghui/htm 2007/20071017_330327.shtml,2007.10
[4]张毅,胡庆,余翔,韦世红编著,电信交换原理[M],电子工业出版社,2007.4
[5]李子青.智能视频监控产品期待自主创新品牌[EB/OL].http://www.cspmag.cn/,2007.9.10
[6]Heng Brian A,Apostolopoulos John G,Lira Jae S.End-to-end rate-distortion optimized MD mode selection for multiple description video coding[J].Eurasip Journal on Applied Signal Processing,2006:1-12
[7]Yusuke Monobe,Haruo Yamashita,Toshiharu Kurosawa.Dynamic Range Compression Preserving Local Image Contrast for Digital Video Camera[J].IEEE,2005:1-10
[8]KRESIMIR CRNKOVIC,HRVOJE DOMITROVIC,MLADEN MALETIC.INTEGRATING DIGITAL VIDEO INTO BROADBAND NETWORKS[J].17 International Conference on Applied Electromagnetics and Communications,2003.10:135-138
[9]张凯.基于ARM+DSP嵌入式的视频监控系统[D].辽宁工学院硕士学位论文,2007.3
[10]李波.数字监控系统——多双眼睛看世界[M].北京:北京航空航天大学出版社,2000
[11]林小龙等.P2P在远程视频监控系统中的应用[J].福建电脑,2006(2):105-106
[12]张永强,赵永勇,李崇德.嵌入式远程视频采集系统的设计与实现[J].现代电子技术,2006(4):75-77
[13]陈耀武,伍鹏,汪乐宇.基于流媒体技术的网络化嵌入式视频监控系统[J].工程设计学报.2004(11):57-61
[14]MICHAEL GREIFFENHAGEN,DORIN COMANICIU.Design,Analysis,and Engineering of Video Monitoring Systems:An Approach and a Case Study[J].IEEE,2001:1498-1517
[15]Hong Zhuang,Zhaoqing Wang.IP-based real time video monitoring system with controllable platform[R].Mechatronic and Embedded Systems and Applications,Proceedings of the 2nd IEEE/ASME International Conference on.2006.8:1-4
[16]陈思思,黄秋元.非压缩数字视频传输系统的设计[EB/OL].电子设计应用,2008-4-3
[17]Hai Xu,Yu Han,Shuisheng Wei,Qingxu Deng,Jin Cui,Shuang Wang,Ge Yu.A remote wire/wireless video monitor system using HW/SW co-scheduling RTOS[R].Embedded Software and Systems,2005.Second International Conference on,2005.12
[18]侯树静.基于无线局域网的嵌入式视频监控系统研究[D].河海大硕士学位论文,2007
[19]Huihui Huang,Weirong Chen,Qingquan Qian,Liu Xiao.Implementation of wide area communication in distributed remote video monitoring system for substations[R].Autonomous Decentralized System,2002.The 2nd International Workshop on,2002.11:294-298
[20]杨海燕,宋日聪.一个基于SNMP的网络监视系统的研究与实现[J].考试周刊,2007:106-108
[21]李雄伟,孙大跃,马晓,钱定军.基于SNMP网络管理系统的研究与开发[J].网络安全技术与应用,2007:41-44
[22]Pdkun Liao,Yuefeng Ji,Hui Li.Interface Design and QoS Performance of Video Monitor System[J].IEEE,2006.10:637-640
[23]夏登洲.基于ARM的嵌入式监控系统[D].华北电力大学硕士学位论文,2005
[24]Qiang Peng,Tian-wu Yang,Wei-rong Chen.Error-resilient video transmission for distributed remote video monitoring system[R].Autonomous Decentralized System,2002.The 2nd International Workshop on,2002.12:108-112
[25]Qian Wang,Yinjing Guo,Wenhong Lu.Long-distance Video Monitoring System Application to Freeway's Toll Station.ITS Telecommunications Proceedings,2006 6th International Conference on,2006.6:886-889
[26]Lin.Shyyunn Sheran,Cheng.Mike.A CASE Tool to Support the MIB Development Process.Integrated Network Management[R].2007.IM'07.10th IFIP/IEEE International Symposium on,2007:684-696
[27]耿庆田,赵宏伟,于繁华.基于SNMP的网络流量数据采集研究与实现[J].长春师范学院学报(自然科学版),2007:79-81
[28]徐华中,舒畅.基于SNMP协议的网络监测[J].中国水运,2007:144-145
[29]赵晖.构建嵌入式文件系统[J].软件世界,2007.4:55-58
[30]倪继利.Linux内核分析及编程[M].电子工业出版社,2005.9
[31]韦安.一种嵌入式Linux下混合文件系统的实现技术[J].计算机工程,2007.7(14):57-58,61
[32]高文国.基于ARM的嵌入式视频监控终端的设计与实现[D].中国科学院研究生院硕士学位论文,2006
[33]Chen Tianzhou,Hu Wei,Wang Xiangsheng.Smart File System:Embedded File System Based on NAND-Flash[J].IEEE,2006.8
[34]Filesystem Hierarchy Standard Group.Filesystem Hierarchy Standard[EB/OL].http://www.pathname.com/fhs/,2004.1
[35]William D.Norcott,Don Capps.Iozone Filesystem Benchrnark[EB/OL].http://www.iozone.org,2007
[36]ftp://ftp.adc.co.kr/pub/uclinux/EOS-uClinux/user/.YAFFS-FileSystem[EB/OL],2004.3
[37]赵方鹏.基于ARM和Linux的嵌入式网络视频监控系统研究[D].西北工业大学硕士学位论文,2007
[38]中国IT实验室.嵌入式Linux文件系统详细介绍[EB/OL].中国IT实验室,2007.9.19
[39]孙继坤,张小全.嵌入式Linux系统开发技术详解—基于ARM[M].人民邮电出版社,2006.12
[40]Schonwalder,J..Characterization of SNMP MIB modules[J].Integrated Network Management,2005.IM 2005.2005 9th IFIP/IEEE International Symposium on,2005.5:615-628
[41]高志强.基于嵌入式的主从式视频监控系统的研究与开发[D].暨南大学硕士学位论文,2006
[42]刘瑞勤.实时视频监控系统的研究[D].华中师范大学硕士学位论文,2006
[43]刘峥嵘,张智超,许振山等.嵌入式Linux应用开发详解[M].机械工业出版社,2005.1
[44]廖艳、章建聪、王洁.网络视频监控系统工程设计规范[R].华信邮电咨询设计研究院有限公司.2007.8
[45]W.RICHARD STEVENS,BILL FENNER,ANDREW M.RUDOFF.UNIX网络编程[M].清华大学出版社,2006.1
[46]Tan Kejun,Luan Xiuzhen Meng,Xianyao.Design of Pan-Camera Decoder in Digital Video Monitoring System Based on Embedded Microcontroller[J].IEEE,2007:18-22
[2]Yibin Yang,Lilla Boroczky.A NEW ENHANCEMENT METHOD FOR DIGITAL VIDEO APPLICATIONS[J].IEEE Transactions on Consumer Electronics,2002.8:435-443
[3]平安城市建设的现状.2007年中国IT两会[EB/OL].http://www.ccw.com.cn/itlianghui/htm 2007/20071017_330327.shtml,2007.10
[4]张毅,胡庆,余翔,韦世红编著,电信交换原理[M],电子工业出版社,2007.4
[5]李子青.智能视频监控产品期待自主创新品牌[EB/OL].http://www.cspmag.cn/,2007.9.10
[6]Heng Brian A,Apostolopoulos John G,Lira Jae S.End-to-end rate-distortion optimized MD mode selection for multiple description video coding[J].Eurasip Journal on Applied Signal Processing,2006:1-12
[7]Yusuke Monobe,Haruo Yamashita,Toshiharu Kurosawa.Dynamic Range Compression Preserving Local Image Contrast for Digital Video Camera[J].IEEE,2005:1-10
[8]KRESIMIR CRNKOVIC,HRVOJE DOMITROVIC,MLADEN MALETIC.INTEGRATING DIGITAL VIDEO INTO BROADBAND NETWORKS[J].17 International Conference on Applied Electromagnetics and Communications,2003.10:135-138
[9]张凯.基于ARM+DSP嵌入式的视频监控系统[D].辽宁工学院硕士学位论文,2007.3
[10]李波.数字监控系统——多双眼睛看世界[M].北京:北京航空航天大学出版社,2000
[11]林小龙等.P2P在远程视频监控系统中的应用[J].福建电脑,2006(2):105-106
[12]张永强,赵永勇,李崇德.嵌入式远程视频采集系统的设计与实现[J].现代电子技术,2006(4):75-77
[13]陈耀武,伍鹏,汪乐宇.基于流媒体技术的网络化嵌入式视频监控系统[J].工程设计学报.2004(11):57-61
[14]MICHAEL GREIFFENHAGEN,DORIN COMANICIU.Design,Analysis,and Engineering of Video Monitoring Systems:An Approach and a Case Study[J].IEEE,2001:1498-1517
[15]Hong Zhuang,Zhaoqing Wang.IP-based real time video monitoring system with controllable platform[R].Mechatronic and Embedded Systems and Applications,Proceedings of the 2nd IEEE/ASME International Conference on.2006.8:1-4
[16]陈思思,黄秋元.非压缩数字视频传输系统的设计[EB/OL].电子设计应用,2008-4-3
[17]Hai Xu,Yu Han,Shuisheng Wei,Qingxu Deng,Jin Cui,Shuang Wang,Ge Yu.A remote wire/wireless video monitor system using HW/SW co-scheduling RTOS[R].Embedded Software and Systems,2005.Second International Conference on,2005.12
[18]侯树静.基于无线局域网的嵌入式视频监控系统研究[D].河海大硕士学位论文,2007
[19]Huihui Huang,Weirong Chen,Qingquan Qian,Liu Xiao.Implementation of wide area communication in distributed remote video monitoring system for substations[R].Autonomous Decentralized System,2002.The 2nd International Workshop on,2002.11:294-298
[20]杨海燕,宋日聪.一个基于SNMP的网络监视系统的研究与实现[J].考试周刊,2007:106-108
[21]李雄伟,孙大跃,马晓,钱定军.基于SNMP网络管理系统的研究与开发[J].网络安全技术与应用,2007:41-44
[22]Pdkun Liao,Yuefeng Ji,Hui Li.Interface Design and QoS Performance of Video Monitor System[J].IEEE,2006.10:637-640
[23]夏登洲.基于ARM的嵌入式监控系统[D].华北电力大学硕士学位论文,2005
[24]Qiang Peng,Tian-wu Yang,Wei-rong Chen.Error-resilient video transmission for distributed remote video monitoring system[R].Autonomous Decentralized System,2002.The 2nd International Workshop on,2002.12:108-112
[25]Qian Wang,Yinjing Guo,Wenhong Lu.Long-distance Video Monitoring System Application to Freeway's Toll Station.ITS Telecommunications Proceedings,2006 6th International Conference on,2006.6:886-889
[26]Lin.Shyyunn Sheran,Cheng.Mike.A CASE Tool to Support the MIB Development Process.Integrated Network Management[R].2007.IM'07.10th IFIP/IEEE International Symposium on,2007:684-696
[27]耿庆田,赵宏伟,于繁华.基于SNMP的网络流量数据采集研究与实现[J].长春师范学院学报(自然科学版),2007:79-81
[28]徐华中,舒畅.基于SNMP协议的网络监测[J].中国水运,2007:144-145
[29]赵晖.构建嵌入式文件系统[J].软件世界,2007.4:55-58
[30]倪继利.Linux内核分析及编程[M].电子工业出版社,2005.9
[31]韦安.一种嵌入式Linux下混合文件系统的实现技术[J].计算机工程,2007.7(14):57-58,61
[32]高文国.基于ARM的嵌入式视频监控终端的设计与实现[D].中国科学院研究生院硕士学位论文,2006
[33]Chen Tianzhou,Hu Wei,Wang Xiangsheng.Smart File System:Embedded File System Based on NAND-Flash[J].IEEE,2006.8
[34]Filesystem Hierarchy Standard Group.Filesystem Hierarchy Standard[EB/OL].http://www.pathname.com/fhs/,2004.1
[35]William D.Norcott,Don Capps.Iozone Filesystem Benchrnark[EB/OL].http://www.iozone.org,2007
[36]ftp://ftp.adc.co.kr/pub/uclinux/EOS-uClinux/user/.YAFFS-FileSystem[EB/OL],2004.3
[37]赵方鹏.基于ARM和Linux的嵌入式网络视频监控系统研究[D].西北工业大学硕士学位论文,2007
[38]中国IT实验室.嵌入式Linux文件系统详细介绍[EB/OL].中国IT实验室,2007.9.19
[39]孙继坤,张小全.嵌入式Linux系统开发技术详解—基于ARM[M].人民邮电出版社,2006.12
[40]Schonwalder,J..Characterization of SNMP MIB modules[J].Integrated Network Management,2005.IM 2005.2005 9th IFIP/IEEE International Symposium on,2005.5:615-628
[41]高志强.基于嵌入式的主从式视频监控系统的研究与开发[D].暨南大学硕士学位论文,2006
[42]刘瑞勤.实时视频监控系统的研究[D].华中师范大学硕士学位论文,2006
[43]刘峥嵘,张智超,许振山等.嵌入式Linux应用开发详解[M].机械工业出版社,2005.1
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