| The Subcriber Management System (SMS) for Digital TV is an integrated software system that meet the need of Digital TV Business management in Broadcasting Industry.SMS combined with CAS is the centeral core of Digital TV Business management. Owing to SMS,payed and various services became realization, and users can enjoy integrated services all-roundly,such as Data Broadcasting, Intetactive Multimedia,and so on.However,In current single technology system between SMS and CAS,One SMS can only support one CAS.Obviously,it can't meet the need that SMS should be Compatible of Multi-CAS.when it comes to ,the current broadcast & TV Business market is the status of both Analog and digital broadcast,it is necessary that SMS should support the Control and management for Addressable SystemThis Issues mainly discuss and implement integration of SMS with Mutli-CA, and Security Strategy problem of SMS. With the background of Multi-CA System and Encryption programs Products, the paper deeply analyses the relational model of integration between SMS and Multi-CA System, and requirements for compatibility of analog TV. Based on 3-tier C/S architecture of the application model on Web, the anthor design management module and controll module integrated with SMS and Multi-CA System,which can be compatible of the CA Interface and Addressable System in many Manufacturers.Therefore,SMS can fully support DTV Business operation and promote analog TV development successfully.what's more,the paper also comprehensively analyses the security strategy of SMS,that uses a series of technical measures to improve security and reliability of system and become stable base for going on operations.This system has been provided to Guangyuan Digital TV Broadcasting Company for using. So far, It is not only fully capable of compatibility of Local CAS, but also safe and stable operation.On the whole, the system can fully achieve the goal of expectation. |
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