Broadcast Network Broadcast Subsystem Design And Implementation

Digital technology is a hot trend in recent years. In most cities of China, analog audio system is superseded by digital audio system gradually. At the same time, contents of broadcast are brought to a new era by the rapid progress of cyber technology and the demand of audio material communication and online transfer are became more urgent. However,in nowadays China, most native broadcasting systems are lack of security, stability and expansibility because of the technology limit while import system usually do not meet the demand of the native special situation. So, it's very exigent of a value-added audio broadcasting system to meet the demand of development.The project of this thesis designed broadcasting station subsystem of DAB(Digital Audio Broadcasting).It's not only the foundation stone of DAB but also a complex administration system. This essay discussed the totally demand analysis of broadcasting station and designed a 3-layer web based client-server model to meet the real demand of today's broadcasting system. The design based on .NET platform and used SmartClient. DirectShow and other digital media technology were also used in the design to improve the performance of the system. To guarantee the data safety and system expandability, Web service and SQL server storage were used to support data set design, application server design and client design.First part of this essay introduced the background of research, system demand analyze and the architect design; second part showed the detail design such as operation module and service module and demonstrated the thought of design, module division and detail implement; third part gave out the system's working record and conclusion. The system reached the goal of design and had very good practical value.