基于IP组播的电视节目分发与传输平台改造  

Transformation of Television Program Distribution and Transmission Platform Based on IP Multicast

作　　者：张秉权 ZHANG Bingquan(Guangzhou Broadcasting and Television Microwave General Station,Guangzhou 510000,China)

机构地区：[1]广州市广播电视微波总站,广东广州510000

出　　处：《电视技术》2024年第11期124-128,共5页Video Engineering

摘　　要：随着科技的进步与数字时代的到来,传统有线数字电视节目分发与传输方式面临着前所未有的挑战。尤其是在当前三网融合的大背景下,异步串行接口(Asynchronous Serial Interface,ASI)结构的传输模式已经难以满足新业态模式的用户需求,更难以支撑新业务领域的扩展。为应对这一挑战,微波总站作为广播电视业务传输机构,在广播电视节目的分发和传输中积极应用新技术,旨在提升业务的多样性,增强适应性,并拓展微波站的应用领域,从而推动微波事业的蓬勃发展。基于此,详细阐述广州市广播电视微波总站充分结合融媒体业务,对现有的电视节目分发与传输平台进行全面的改造的过程。改造过程中,摒弃了传统的ASI传输平台,采用基于网际互连协议(Internet Protocol,IP)组播技术的全新系统架构。这一创新的架构,不仅提升了系统的灵活性和可扩展性,更为微波总站承接更多的新业务和服务更广泛的用户群体提供技术支持。With the development of science and technology and the coming of the digital age,the traditional cable digital television program distribution and transmission are facing unprecedented challenges.Especially in the context of the convergence of the three networks,the Asynchronous Serial Interface(ASI)transmission mode is difficult to meet the needs of users in the new business mode,and it is difficult to support the expansion of new business areas.In order to meet this challenge,the microwave main station,as the transmission institution of radio and television service,is integrated in the distribution and transmission of radio and television programs.The application of new technologies aims to enhance the diversity of the business,enhance adaptability,and expand the application field of microwave stations,thus promoting the vigorous development of the microwave industry.Based on this,the paper elaborates the process of the comprehensive transformation of the existing television program distribution and transmission platform of Guangzhou Radio and Television Microwave Station by fully integrating the media business.In the process of transformation,the traditional ASI transmission platform is abandoned,and a new system architecture based on Internet Protocol(IP)multicast technology is adopted.This innovative architecture not only improves the flexibility and scalability of the system,but also provides technical support for the microwave terminal to undertake more new businesses and services to a wider range of user groups.

关 键 词：组播路由协议 电视节目 分发传输 

分 类 号：TN948.14[电子电信—信号与信息处理]