The Design And Implementation Of Users Information Module Based On The SMS Of Mobile Digital Multimedia Broadcasting CA System

By scrambling the mobile digital multimedia content, Mobile Digital Multimedia Broadcasting CA (Conditional Access) system is to establish an effective system of fees, to ensure that, the user (as authorized) can receive his reservations Business, and the unpaid users will not be able to acquire this kind of operations (such as pay-TV). This system is to protect the interest of program providers and operators. CA system is mainly component by the integrated management system, programme information management system, subscriber management system, front-end conditional access system, electronic program guide system, reuse scrambling system, smart card issuance system and other components.In the use of systems management technology, computer software, network technology and related applications, SMS (Subscriber Management System) achieves systems management, customer information, product information, products ordered, users authorized, resources information, accounts billing, query statistics, customer service and other management functions of mobile digital multimedia broadcasting system, and achieves the interconnection with other systems through the interfaces to complete the corresponding functions. The goal of SMS is to provide a complete and effective user and business management systems and backup systems for mobile digital multimedia business and management models, not only to achieve the integrated management of users, but also to achieve the unified management of business services.In this article, I research on the CA system's basic working principle. I offer the structure of SMS, the relevant principles of development and design, development processes, the delineation of modules and the functions of each module. And on this basis, I design and realize the development of the SMS user information module. User information module's functions include editing and management of user information, dealing with orders of programmes, inspection user fees, giving a pre-authorized users of information, the user accounts, sales households, the renewal programme / presumption, services pause / resume, the replacement of the smart card business. User information module is an important component of SMS to manage users, authorize users, and automatically pass information and relevant data on CA system. CA system can control a large number of users quickly and send ECM/EMM to control the receiver through user information module.