超高清IP系统时钟同步混合网络架构的研究与建设

Research and Construction of Clock Synchronization Hybrid Network Architecture for UHD IP System

济南广播电视台建设超高清媒体应用协同创新试验平台,在广播电视超高清化、IP化、媒体融合以及智能应用等多领域开展创新性和前瞻性研究,为超高清系统建设奠定技术基础。试验平台现已完成高精度、全冗余、低延迟的PTP系统部署,并外延出NTP时钟、LTC时钟和BB同步的混合网络架构,整体方案应用效果良好。本文分析说明该时钟同步混合网络架构的研究成果和建设思路,可为广电超高清IP播出系统建设提供有益的借鉴。

Jinan Radio and Television Station has established a collaborative innovation test platform dedicated to exploring UHD media applications.Through extensive research in areas such as UHD and IP-based broadcasting,media convergence,and intelligent applications,the station has laid a solid technical groundwork for the development of UHD systems.Leveraging test experiences,protocol specifications,and equipment capabilities,our test platform successfully deployed a high-precision,fully redundant,and low-latency PTP system.Furthermore,we extended this setup to embrace a hybrid network architecture incorporating NTP,LTC,and BB synchronization methods.Our comprehensive solution has demonstrated promising application outcomes.This paper delves into the analysis and elucidation of the clock-synchronous hybrid network architecture,offering valuable insights and practical guidance for the construction of UHD IP broadcasting systems in the radio and television domain.