| 嵌入式数字家庭安防视频采集系统设计 |
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| 引用本文： | 马永军,郭磊. 嵌入式数字家庭安防视频采集系统设计[J]. 天津轻工业学院学报, 2011, 0(2): 65-69 |
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| 作者姓名： | 马永军 郭磊 |
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| 作者单位： | 天津科技大学计算机科学与信息工程学院,天津300222 |
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| 基金项目： | 天津市科技支撑计划重点项目（08ZCKFGX00600）; 天津市高等学校科技发展基金项目（20061011） |
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| 摘 要： | 针对安防监控系统中视频采集的需求,设计了嵌入式视频采集系统.采用ARM/DSP双核协同工作方式,其中ARM采用三星的ARM微处理器S3C2440,主要实现网络传输和控制功能;DSP采用专用于视频处理的芯片TMS320DM6437,对视频流进行压缩处理,两者通过DSP的主机接口进行通信.网络传输基于RTP协议,根据网络状态调节编码传输速率自适应网络带宽,实现面向服务的QoS控制.实验表明,系统具有成本低、稳定性和实时性好、易于扩展等优点,可用于数字家庭等场所.
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| 关 键 词： | 安防监控 DSP RTP QoS控制 数字家庭 |
Design of Embedded Digital Home Security Video Capture System |
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| MA Yong-jun,GUO Lei. Design of Embedded Digital Home Security Video Capture System[J]. Journal of Tianjin University of Light Industry, 2011, 0(2): 65-69 |
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| Authors: | MA Yong-jun GUO Lei |
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| Affiliation: | (College of Computer Science and Information Engineering,Tianjin University of Science ＆ Technology,Tianjin 300222,China) |
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| Abstract: | For the requirements of video capture in security monitoring system,an embedded video capture system was proposed.ARM/DSP dual-core collaborative work was adopted,in which Samsung＇s ARM processor S3C2440 was used for network transmission and control,DSP processing chip TMS320DM6437 was used for video processing,the two cores com-municate through the HPI.RTP based network transmission adjust coding transmission rate according to network state for adaptive network bandwidth,which realize service-oriented QoS.Experiments show the system has the advantage of low cost,good stability and real-time,scalability and so on and can be used for digital home and other place. |
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| Keywords: | security monitoring DSP RTP QoS control digital home |
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