Digital Television Ratings Survey Research And To Achieve

With the fast development of digital TV service and the widely usage of digital TV Set-Top Box recent years, analog TV will be replaced by digital TV gradually. In the broadcast service of TV programs, audience rate plays a critical role and has great market values. The traditional methods of audience rate investigation are restricted in the coming digital TV service time, especially the method relied on analog measure devices. So the research of audience rate investigation based on digital TV service is quite important and valuable.Based on traditional methods of audience rate investigation, this dissertation has accomplished the rate investigation by audience data gathering, transmitting and processing according to digital TV service. The dissertation uses the STi7710 chip and ST20 embedded system authorized by STMicrotronics to collect audience data, and uses ARM4510B as an additional circuit to transfer the data, and uses the Microsoft product .NET framework and SQL Server to obtain the rate opponent at last.The work of this dissertation begins with the definition of audience data structure based on considering the embedded developing environment features. And then the SI analysis and OSD interactive function are used to gain the user watching information. After that a method of storing and transmitting the audience data is given and tested. Finally some exponents according to the audience rate system are obtained using the .NET framework and SQL Server programming.This dissertation achieves a whole module of audience rate investigation based on digital TV service, and designs a data collection part which uses STB platform as an independent module that can be easily transplanted to other digital program receiver platforms. Besides, the establishment of the basic audience data and relations will lead more exponents in actual use.