嵌入式网络可视对讲系统的研究与设计
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摘要
随着科技的进步和人们生活水平的提高,可视对讲系统渐渐成为住宅小区的标准要求,其核心功能是语音和图像的传输。现有的可视对讲系统一般采用电话线传输模拟图像信号,安装布线比较麻烦,传输距离远信号还会有衰减。因此论文讨论了如何构建嵌入式网络可视对讲系统,以及利用住宅小区局域网来传输语音和图像,以解决传统可视对讲系统中存在的问题,从而实现整个系统的数字化。
嵌入式系统具有体积小,可以内嵌到设备内等诸多优点。随着相关技术的进步,出现了越来越多高性能的嵌入式处理器。在这些嵌入式处理器上已经实现了网络可视对讲应用,但是高成本成为限制其市场应用的主要因素。因此论文主要研究如何合理的设计系统,在低端的嵌入式处理器上实现网络可视对讲功能。通过合理的软硬件设计,本文在一个ARM7微控制器和一个ARM9微处理器上分别实现了网络可视对讲的功能,并测试了其性能,验证了在低端嵌入式处理器上实现视频应用的可行性,为基于网络的楼宇可视对讲系统产品的设计提供了参考。
随着蓝牙无线通信技术的发展,蓝牙无线通信的带宽逐渐增大,论文最后还研究了蓝牙无线技术在可视对讲系统中的应用,提出了一个可行的无线可视对讲系统方案。
Video phone whose core function is the transmission of speech and video becomes the standard need gradually along with the advancements of technology and the promotion of people's living standard. Existing video phone generally transmits analog video signal using phone line, installation and connection is complex, distance also will weaken the intensity of the analog video signal. So this article discusses the design of embedded internet video phone system which transmits speech and video using local area network of living district in order to solve the problem of traditonal system and realize that the whole system is digital.
Embedded system is so small that it can be embedded into the equipment. More and more high performance embedded processors have been produced along with the advancements of reference technology. Internet video phone application has been realized on these embedded processors, but high costing is the major factor which limits their market. So the emphasis of the article is how to design the system reasonably in order to realize internet video phone application on low end embedded processors. The article realized the function of internet video phone on an ARM7 micro controller and an ARM9 micro processor respectively through reasonable hardware and software design, and tested their performance, verified the feasibility of realizing video application on low end embedded processors, provided reference design for the video phone product which is based on the technology of internet.
The bandwidth of Bluetooth wireless communication increases gradually along with the advancements of Bluetooth technology. The article discussed the use of Bluetooth technology in video phone system in the end and designed a feasible plan.
嵌入式系统具有体积小,可以内嵌到设备内等诸多优点。随着相关技术的进步,出现了越来越多高性能的嵌入式处理器。在这些嵌入式处理器上已经实现了网络可视对讲应用,但是高成本成为限制其市场应用的主要因素。因此论文主要研究如何合理的设计系统,在低端的嵌入式处理器上实现网络可视对讲功能。通过合理的软硬件设计,本文在一个ARM7微控制器和一个ARM9微处理器上分别实现了网络可视对讲的功能,并测试了其性能,验证了在低端嵌入式处理器上实现视频应用的可行性,为基于网络的楼宇可视对讲系统产品的设计提供了参考。
随着蓝牙无线通信技术的发展,蓝牙无线通信的带宽逐渐增大,论文最后还研究了蓝牙无线技术在可视对讲系统中的应用,提出了一个可行的无线可视对讲系统方案。
Video phone whose core function is the transmission of speech and video becomes the standard need gradually along with the advancements of technology and the promotion of people's living standard. Existing video phone generally transmits analog video signal using phone line, installation and connection is complex, distance also will weaken the intensity of the analog video signal. So this article discusses the design of embedded internet video phone system which transmits speech and video using local area network of living district in order to solve the problem of traditonal system and realize that the whole system is digital.
Embedded system is so small that it can be embedded into the equipment. More and more high performance embedded processors have been produced along with the advancements of reference technology. Internet video phone application has been realized on these embedded processors, but high costing is the major factor which limits their market. So the emphasis of the article is how to design the system reasonably in order to realize internet video phone application on low end embedded processors. The article realized the function of internet video phone on an ARM7 micro controller and an ARM9 micro processor respectively through reasonable hardware and software design, and tested their performance, verified the feasibility of realizing video application on low end embedded processors, provided reference design for the video phone product which is based on the technology of internet.
The bandwidth of Bluetooth wireless communication increases gradually along with the advancements of Bluetooth technology. The article discussed the use of Bluetooth technology in video phone system in the end and designed a feasible plan.
引文
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[5]刘晓胜编著. 智能小区与通信技术. 电子工业出版社,2004.5
[6]DOUGLAS E.COMER 著,林瑶,蒋慧等译. 用 TCP/IP 进行网际互连第 1 卷:原理、协议和体系结构(第 3 版). 电子工业出版社,1998.4
[7]Ales Vugrinec,Saso Tomazic. IP telephony from a user perspective. 10th Mediterranean Electrotechnical Conference,MEleCon 2000.5,344-347,vol.1
[8]舒华英等编著. IP 电话技术及其应用第二版. 人民邮电出版社,2001.4
[9]王涌. 基于 CAN 通信的智能楼宇可视对讲系统开发. 中国优秀博硕学位论文库:浙江工业大学硕士论文,2005.5
[10]周立功等编著. ARM 微控制器基础与实战. 北京航空航天大学出版社. 2005.8
[11]Philips Semiconductors. LPC2132 datasheet. www.zlgmcu.com. 2005.6
[12]Micron. MT9V011 datasheet,MT9V011.pdf,www.micron.com
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[17]曹宇,魏丰,胡士毅. 用 51 单片机控制 RTL8019AS 实现以太网通讯. 电子技术应用,2003 年第 1 期
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[19]周立功等编著. ARM 嵌入式系统软件开发实例. 北京航空航天大学出版社. 2004.12
[20]李现勇编著. Visual C++ 串口通信技术与工程实践. 人民邮电出版社,2002.
[21]Samsung Electronics. S3C2410 datasheet. www.samsungsemi.com. 2003.4
[22]邹思轶主编. 嵌入式 Linux 设计与应用. 清华大学出版社,2002.1
[23]Zhang Yong-qiang,Zhao Ji-chun,Wu ning. Design and Realization of Embedded Image Transmission System Based on GPRS. 2006 IEEE International Conference on Computational Intelligence for Modelling,Control and Automation,and International Conference on Intelligent Agents,Web Technologies and Internet Commerce. 2006.11
[24]Yu Qin,Huan Xuan,Yang Xingjun,Li Xing. Improvement of "Cool-Video" - a case of Internet video-phone. 2001 IEEE International Conferences on Info-tech and Info-net,2001.10,809-813 vol.2
[25]Cirrus Logic. CS8900A datasheet. www.cirrus.com. 2004.9
[26]Philips Semiconductors. UDA1341 datasheet. www.zlgmcu.com. 2002.5
[27]TopSun Optronics. TS35ND25-02 datasheet. www.top-sun.com.tw. 2005.7
[28]李善平等编著. Linux 与嵌入式系统. 清华大学出版社,2002
[29]Alex Lennon. Embedding Linux. IEE Review,Volume 47,Issue 3,33-37,2001.5
[30][美]Craig Hollabaugh 著,陈雷等译. 嵌入式 Linux-硬件、软件与接口. 电子工业出版社,2003.11
[31]孙纪坤,张小全编著. 嵌入式 Linux 系统开发技术详解-基于 ARM. 人民邮电出版社,2006.8
[32]Anand K Santhanam,Vishal Kulkarni. 嵌入式设备上的 Linux 系统开发. www.ibm.com,2002.3
[33]郑灵翔等编著. 嵌入式系统设计与应用开发. 北京航空航天大学出版社,2006.2
[34]王晓亚,张建立. G.726 语音压缩编码的实现. 无线电工程,2005 年,第 35 卷,第 3 期
[35]丁威. 基于 PC 的网络可视电话软件设计. 中国优秀博硕学位论文库:浙江大学硕士论文,2006.3
[36][英]理查森(Richardson,I.E.G)著;欧阳合,韩军译.H.264 和 MPEG-4 视频压缩:新一代多媒体的视频编码技术. 国防科技大学出版社,2004.11
[37]贺贵明等著.基于内容的视频编码与传输控制技术. 武汉大学出版社,2005.4
[38]陈俊宏著. Embedded Linux 嵌入式系统原理与实务. 中国铁道出版社,2004.3
[39]沈兰荪等编著. 视频编码与低比特率传输. 电子工业出版社,2001.12
[40][美]Arthur Griffith 著,胡恩华译. GCC 技术参考大全. 清华大学出版社,2004.7
[41]毛曙福编著. Linux C 高级程序员指南. 国防工业出版社,2001.2
[42][美]Kurt Wall 著,张辉译. GNU/Linux 编程指南 入门·应用·精通. 清华大学出版社,2002.6
[43]白若冰. 基于 OMAP 的 IP 网络电话设计与实现. 中国优秀博硕学位论文库:浙江大学硕士论文,2006.5
[44]朱秀昌编著. 图像通信应用系统. 北京邮电大学出版社,2003.6
[45]方旭明,何蓉等编著. 短距离无线与移动通信网络. 人民邮电出版社,2004.8
[46]马建仓等编著. 蓝牙核心技术及应用. 科学出版社,2003
[47]刘书生,赵海主编. 蓝牙技术应用. 东北大学出版社,2001.11
[2][美]米纳理等著;程时端,卢美莲等译. IP 网上的话音传递技术. 清华大学出版社,2002
[3]王峰,荣易. 国内居家智能系统的发展现状. www.cablingworld.com.cn,2005.5
[4]陈立峰. 国内楼宇对讲行业的发展趋势. www.studa.net,2006.3
[5]刘晓胜编著. 智能小区与通信技术. 电子工业出版社,2004.5
[6]DOUGLAS E.COMER 著,林瑶,蒋慧等译. 用 TCP/IP 进行网际互连第 1 卷:原理、协议和体系结构(第 3 版). 电子工业出版社,1998.4
[7]Ales Vugrinec,Saso Tomazic. IP telephony from a user perspective. 10th Mediterranean Electrotechnical Conference,MEleCon 2000.5,344-347,vol.1
[8]舒华英等编著. IP 电话技术及其应用第二版. 人民邮电出版社,2001.4
[9]王涌. 基于 CAN 通信的智能楼宇可视对讲系统开发. 中国优秀博硕学位论文库:浙江工业大学硕士论文,2005.5
[10]周立功等编著. ARM 微控制器基础与实战. 北京航空航天大学出版社. 2005.8
[11]Philips Semiconductors. LPC2132 datasheet. www.zlgmcu.com. 2005.6
[12]Micron. MT9V011 datasheet,MT9V011.pdf,www.micron.com
[13]REALTEK Semiconductor. RTL8019AS datasheet. www.realtek.com.tw. 1996
[14][日]冈村廸夫著,王玲,徐雅珍,李武平译. OP 放大电路设计. 科学出版社,2004
[15]Averlogic. AL422B datasheet,AL422B.pdf,www.averlogic.com
[16]刘波,淳静. 基于 DSP 的网络通信程序设计. news.eeworld.com.cn,2007.3
[17]曹宇,魏丰,胡士毅. 用 51 单片机控制 RTL8019AS 实现以太网通讯. 电子技术应用,2003 年第 1 期
[18]刘康,王宣银. 嵌入了 TCP/IP 协议的单片机数据通信系统的设计与实现. 电测与仪表,2003 年第 6 期
[19]周立功等编著. ARM 嵌入式系统软件开发实例. 北京航空航天大学出版社. 2004.12
[20]李现勇编著. Visual C++ 串口通信技术与工程实践. 人民邮电出版社,2002.
[21]Samsung Electronics. S3C2410 datasheet. www.samsungsemi.com. 2003.4
[22]邹思轶主编. 嵌入式 Linux 设计与应用. 清华大学出版社,2002.1
[23]Zhang Yong-qiang,Zhao Ji-chun,Wu ning. Design and Realization of Embedded Image Transmission System Based on GPRS. 2006 IEEE International Conference on Computational Intelligence for Modelling,Control and Automation,and International Conference on Intelligent Agents,Web Technologies and Internet Commerce. 2006.11
[24]Yu Qin,Huan Xuan,Yang Xingjun,Li Xing. Improvement of "Cool-Video" - a case of Internet video-phone. 2001 IEEE International Conferences on Info-tech and Info-net,2001.10,809-813 vol.2
[25]Cirrus Logic. CS8900A datasheet. www.cirrus.com. 2004.9
[26]Philips Semiconductors. UDA1341 datasheet. www.zlgmcu.com. 2002.5
[27]TopSun Optronics. TS35ND25-02 datasheet. www.top-sun.com.tw. 2005.7
[28]李善平等编著. Linux 与嵌入式系统. 清华大学出版社,2002
[29]Alex Lennon. Embedding Linux. IEE Review,Volume 47,Issue 3,33-37,2001.5
[30][美]Craig Hollabaugh 著,陈雷等译. 嵌入式 Linux-硬件、软件与接口. 电子工业出版社,2003.11
[31]孙纪坤,张小全编著. 嵌入式 Linux 系统开发技术详解-基于 ARM. 人民邮电出版社,2006.8
[32]Anand K Santhanam,Vishal Kulkarni. 嵌入式设备上的 Linux 系统开发. www.ibm.com,2002.3
[33]郑灵翔等编著. 嵌入式系统设计与应用开发. 北京航空航天大学出版社,2006.2
[34]王晓亚,张建立. G.726 语音压缩编码的实现. 无线电工程,2005 年,第 35 卷,第 3 期
[35]丁威. 基于 PC 的网络可视电话软件设计. 中国优秀博硕学位论文库:浙江大学硕士论文,2006.3
[36][英]理查森(Richardson,I.E.G)著;欧阳合,韩军译.H.264 和 MPEG-4 视频压缩:新一代多媒体的视频编码技术. 国防科技大学出版社,2004.11
[37]贺贵明等著.基于内容的视频编码与传输控制技术. 武汉大学出版社,2005.4
[38]陈俊宏著. Embedded Linux 嵌入式系统原理与实务. 中国铁道出版社,2004.3
[39]沈兰荪等编著. 视频编码与低比特率传输. 电子工业出版社,2001.12
[40][美]Arthur Griffith 著,胡恩华译. GCC 技术参考大全. 清华大学出版社,2004.7
[41]毛曙福编著. Linux C 高级程序员指南. 国防工业出版社,2001.2
[42][美]Kurt Wall 著,张辉译. GNU/Linux 编程指南 入门·应用·精通. 清华大学出版社,2002.6
[43]白若冰. 基于 OMAP 的 IP 网络电话设计与实现. 中国优秀博硕学位论文库:浙江大学硕士论文,2006.5
[44]朱秀昌编著. 图像通信应用系统. 北京邮电大学出版社,2003.6
[45]方旭明,何蓉等编著. 短距离无线与移动通信网络. 人民邮电出版社,2004.8
[46]马建仓等编著. 蓝牙核心技术及应用. 科学出版社,2003
[47]刘书生,赵海主编. 蓝牙技术应用. 东北大学出版社,2001.11