A new extensible multi-function vehicle terminal system for multimedia advertising is designed, and the software and hardware design and realization method are also introduced. The terminal support remote release of text advertisement and audio advertisement and which was combined with the master server, vehicle LED screen, microphone, empty-car indicator light, taximeter to make up a multimedia advertising remote release system. It was verified by experiments that the terminal and the whole system meet the needs of the advertisement release of a media city(about 2000 terminals).
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