| The concept of mobile-tv, in general, is the tv that broadcast to the moving people. Mobile-tv includes cell phone mobile-tv, vehicle carried mobile-tv, building mobile-tv and so on. Public transportation mobile-tv is a new type mobile-tv which has emerged these few years in some big and medium size cities. It has three essential effects on communication: Substantial effect, focusing and compulsion. Generally, this new mobile-tv has two technologies which are used nation-wide. One is using the method of sending out and receiving digital signals, another is using the vehicle carried hard-disc system as the main method. These two different technologies represent the main methods that public transportation mobile-tv are using nowadays. These two technologies have some same communication characteristics, and at the same time, have some differences.As the extension of regular TV, Transportation mobile-tv has all the communication characteristic of regular tv. At the same time, it has some peculiarities. From the media commonweal, public transportation mobile-tv communicates with audience directly, it has unparallel communication effect when spreading the public information; on the other hand, as a type of outdoor media, public transportation mobile-tv has obvious economic value. Advertisement is the main economic resource for the operation of public transportation mobile-tv, its communication effect will directly affect the future of public transportation mobile-tv.In this thesis, the author will tell the difference of two different technologies that are used by the public transportation mobile-tv. The author will also discuss the content, characteristic, advertisement effect and other factors during the mobile-tv broadcasting. At the same time, the author will use a real case to explain these. |
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