Design And Implementation Of Media Receiving Systems For Convergence Platform

With the deeper integration of the three networks,the field of IPTV has formed an industry ecosystem with the participation of three parties,i.e.radio and television broadcasting and control companies,Exchange Carrier,and various content providers.By means of broadband network,internet,multimedia,communications,etc.,IPTV,an interactive network TV,is both a new technology which provides home users with various interactive services such as digital TV,and also a new business combined with internet,telecommunication and entertainment.Among the business,the value-added telecommunication service of IPTV has developed rapidly in recent years,and has become a new business growth point for major Exchange Carriers.Media content injection is the first link of IPTV value-added service.The efficiency and success rate of injection will give a direct impact on the revenue of business operation.Therefore it has aroused the attention of all parties,and the media receiving system has become one of the most important parts of the IPTV broadcasting-controlled platform.IPTV integrated broadcasting-controlled platform was built in 2010,mainly concentrating on the operation,supervision and broadcasting control of basic telecom business.With the introduction of a large number of CSP providers in value-added telecom business,the shortcomings of the platform related to processing system stand out gradually.At present,the main problems are reflected in the three aspects: a unified CSP management unable to be carried out,the state of content injection unable to be monitored,and the multi system access capability insufficient to make the capacity smooth expansion fail to be achieved quickly.In view of the above problems,this thesis provides some corresponding solutions according to the software engineering theory,in line with the UML standard,in combination with the SOA and the design of micro service architecture,in compatible to the SOAP and REST protocols,and with much attention to the research on the content injection by CSP providers as well as relevant management.The solutions have been demonstrated effective in practice.The achievements are as follows:1.In accordance with the existing software engineering theory,we design a more optimized architecture of media receiving system by combining SOA with a micro service architecture design.The adoption of the micro service architecture in components makes deployment,management,and service function delivery simpler,thus improve the system's access capability and service response speed.2.Using the mixed mode of Web Service implementation method,according to the existing IPTV C2 specification,we design and develop the injection of signaling submit and return receipt unit.The media asset injection component is encapsulated as an API with other components within the platform,such as the core management component.Thus the loosely coupled and lightweight connection is achieved inside the system.The overall system is compatible with SOAP and REST protocol,which not only enables the system to be compatible with third party external systems,but also enhances communication efficiency between the interior of the platforms.3.Using the MYSQL database and the JAVA language,following the UML standard,we design a database table structure and develop the main modules of the media receiving,business logic and management display.The results show that the system realizes the intention of the original design and meets the operation needs.4.This thesis also collects and analyzes the operating conditions of the media receiving system in the real environment.Facts show that the designed system addresses the existing problems and achieves the desired effect.This thesis does not touch upon the capacity expansion of the cloud platform and the maintenance and management of the automatic monitoring system.On the basis of the existing work,I will further study,design and implement the above two aspects in order to achieve a more significant effect.