| SUBJECT SPECIALITY: Automation theory and engineeringTHESIS TITLE: CATV Addressed Charge SystemMASTER: Jiang LiTUTOR: Profesor Bingchao LvThe paper introduces a kind of CATV charge system based on the control of single-chip computer. In order to obtain addressing control purpose, modem technology; data processing and switch of high frequency TV signal are discussed in detail. Resistance of interference and reliability are also discussed. Design thought and method are provided. The front terminal odulator and the rear terminal ?user terminal are developed. User terminal includes demodulator, control part of single-chip computer and switch part of TV signal.The system involves multiple research field including telecommunication computer control and high frequency electric circuit. Capacity of the system is designed as 1,000,000 user. TV signal turn off completely. Non-authorized user can receive TV program normally. |
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