Design and Implementation of Component Media Player for Urban Rail Transit Passenger Service: IEEE ITAIC(ISSN:2693-2865)

With the intelligent development of urban rail transit, the types and forms of passenger service information are constantly enriched. As key operation equipment, media players in stations and trans play an important role in passenger service. The traditional media player with single play mode and fixed format can't well respond to the flexibility requirements of current playback content and mode. Considering the diversity of passenger service information content, playback mode types and rendering effects, component-based media player software was designed to improve the flexibility of picture rendering. Core business control process of media player was realized without interruption of picture rendering. Automatic download and update of media resources from control center and seamless switching of different play modes were realized in background. Media players have higher operation performance to provide better services due to the functional scalability of component framework.