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With the development of modern mechanical technology, the large engineering vehicle is becoming more and more popular, and its number is growing. It plays an important role in the production, but there are also many problems. For example, quality of construction and working efficiency needs to be improved and safety problems are hidden and so on. The vehicle video monitoring system can monitor vehicle state and working site in real time, and effectively solve the above problem. This topic is from transverse scientific research project of a large road machinery group company.Firstly, the background of vehicle video monitoring system is researched, introduces its development status and future trends. According to the actual needs, this subject formulates the function of system to realize. The popular bus technology is compared and at last two plans for the monitoring system are mapped out. They are vehicle video monitoring system based on1394b bus technology, and vehicle video monitoring system based on Ethernet technology. Both of solutions use H.264coding standard. Two schemes in-depth, builds system platform are researched and working process and hardware and software requirements of1394bus scheme are given. Finally vehicle video monitoring system based on Ethernet technology is completed. The video signal is gathered by cameras, coded by the hard disk video recorder, and then sent to the main monitoring client PC by the IP network. Main monitoring client has realized the following functions, real-time video preview and video playback, file download and so on. Other monitoring clients, through streaming media technology, have realized real-time video monitoring, to meet the demand that multiple users at the same time browse video. It also enhances the scalability of the system. In the future the number of users increases, it can add streaming media software to increase capacity, and don’t need to change the system topology.The powerful VC++6.0is chosen as system development software, the system has following software, user login software of main monitoring client, client software, stream media server and stream media client software. According to the experimental result, each of software runs stably, with playing a clear fluent picture, meets the large engineering vehicle demand to vehicle video monitoring system. The vehicle video monitoring system of this subject has good portability, wide application range. It can also be applied to the subway, bus, large-scale passenger car and so on, has a very broad space for application.
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