数字电视系统中应急广播适配设备的设计和实现  

Design and Implementation of Emergency Broadcast Adapter in DTV System

作　　者：李小雨[1] 傅雪鹏 陈德林[1] LI Xiaoyu FU Xuepeng CHEN Delin(Academy of Broadcasting Science, SAPPRFF, Beijing 100866, China China Alliance of Radio, Film and Television, Beijing 100866, China)

机构地区：[1]国家新闻出版广电总局广播科学研究院,北京100866 [2]中国广播电影电视社会组织联合会,北京100866

出　　处：《广播与电视技术》2016年第12期132-136,共5页Radio & TV Broadcast Engineering

摘　　要：本文结合数字电视系统的特点,全面分析了将应急广播适配到数字电视系统中的各种方法,提出了一套完整的数字电视应急广播适配方案,然后基于该方案完成了数字电视应急广播适配器的需求分析、软硬件平台选型、FPGA内部设计、适配器的软件设计和实现等工作。适配器的硬件基于SAMSUNG公司ARM芯片S3C2440开发,软件平台使用了微软的Wince5.0操作系统,软件部分的工作包括适配器用来接收和发送码流的FPGA驱动程序设计和应用程序的开发。最后搭建仿真实验环境对适配器进行测试,从而论证了课题的研究成果。This article mainly focuses on digital TV emergency broadcast adaptation method, design and implementation of digital TV emergency broadcast adapter. Associated with features of digital TV system, this article presents a complete digital TV emergency broadcast adaptation solution after comparing several methods of how to adapt emergency broadcast to digital TV system. Then based on the solution, it finishes requirements analysis of digital TV emergency broadcast adapter, selection of software and hardware platform, internal design of FPGA, and design and implementation of digital TV emergency broadcast adapter. The adapter＇s hardware is developed based on the ARM chip S3C2440 of SAMSUNG company, and the software platform uses Wince 5.0 operating system of Microsoft company. The software part work includes development of driver and application of FPGA which is used for receiving and sending streams. At last we build a simulation environment for testing adapter and demonstrating the research achievement of the task.

关 键 词：数字电视 应急广播适配器 FPGA WINCE 驱动程序 

分 类 号：TN949.2[电子电信—信号与信息处理]