Embedded video surveillance system for vehicle over WLAN and CDMA1X

With the recent advancement of mobile wireless technologies such as: wireless LAN and CDMA, it has become viable to create a network-in-motion inside a vehicle. This paper presents an embedded video surveillance system for vehicle over WLAN and CDMA1X. First, it constructs high speed automobile communication environment by fusing CDMA1X and WLAN wireless network. In order to fit the bandwidths sharply variety of wireless channel, adaptive video compression algorithms based MPEG4 is utilized to encode the high quality video. Moreover, unique transmission mechanism using media server and media gateway is presented, which can support large scale concurrent users up to 1000. This transmission mechanism uses the buffer on media server to smooth the video transport in wireless channel. Using this architecture of video transmission for vehicle, the live surveillance video of mobile can be viewed over Internet. Furthermore, control center can be set up anywhere with Internet access without being restricted by monitored site locations. This system is supported by Electronic Information Industry Development Fund of 2004.