| 基于WLAN路况视频监控系统设计 |
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| 引用本文： | 邢业平,陈启美.基于WLAN路况视频监控系统设计[J].计算机工程与设计,2008,29(23). |
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| 作者姓名： | 邢业平 陈启美 |
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| 作者单位： | 南京大学,通信技术研究所,江苏,南京,210093 |
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| 基金项目： | 江苏省交通科学研究计划基金项目 |
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| 摘 要： | 为弥补路况有线视频监控的盲区,对现有路况视频方案进行了调查,分析了造成监控盲区的原因,针对有线视频监控的布设困难、范围有限等局限性,提出了基于WLAN视频监控系统的设计方案.描述了系统的构成,阐述了车载单元与路侧单元的功能,讨论了用于解决无线视频监控的UDP Lite的交叉、H.264图像的错误恢复、流量与带宽控制等技术,分析了试验结果,并对系统的进一步拓展应用进行了展望.
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| 关 键 词： | 无线局域网 车载单元 交叉技术 视频编码 图像错误恢复 流量与带宽控制 |
Design of road traffic monitoring system based on WLAN technology |
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| CHEN Qi-mei,XING Ye-ping.Design of road traffic monitoring system based on WLAN technology[J].Computer Engineering and Design,2008,29(23). |
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| Authors: | CHEN Qi-mei XING Ye-ping |
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| Affiliation: | XING Ye-ping,CHEN Qi-mei(Communication Technology Institute,Nanjing University,Nanjing 210093,China) |
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| Abstract: | The wire video monitoring systems is researched, the reasons ofthe blind area is analyzed, and a method ofvideo monitoring system based on WLAN in order to make up the limits such as difficult arrangements, restricted area and so on, which are brought from wire video monitoring.The structure of the system is described, the functions of onboard unit and roadside unit are expounded, the technologies of resolving the UDP Lite'crossovers, error recovery of H.264 pictures, traffic and bandwidth control in the WL... |
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| Keywords: | WLAN on-borad unit UDP Lite H 264 video encode error recovery traffic and bandwidth control |
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