多媒体系统中的防信息碰撞技术的设计与实现  

Design and implementation of anti-collision technology for multimedia system

作　　者：兰长明[1] 汪滢[1] 梅毅[1] 

机构地区：[1]南昌大学科学技术学院,江西南昌330029

出　　处：《现代电子技术》2015年第24期100-103,共4页Modern Electronics Technique

基　　金：江西省教育厅课题独立学院实践教学模式研究(08JY71);南昌大学科技学院精品课程项目(2013JPKC020);南昌大学科技学院基金项目(2014-JG-04)

摘　　要：为了使多媒体文件播放更加流畅,设计与实现了一种多媒体系统中的防信息碰撞技术,分析了多媒体信息系统总体的工作流程和数据流产生碰撞的原因,将ADM5120芯片作为核心,通过该控制模块对多媒体系统数据流的各部分进行监测和控制,实现数据流的发送。利用编/解码模块将数据流解码成电信号,通过合理存储模块对多媒体系统的启动引导程序、内核和相关文件进行顺序存储,避免数据流的冲突。软件设计过程中,设计ALOHA防信息碰撞算法避免多媒体系统中数据流碰撞现象的发生,同时给出防信息碰撞的程序代码。实验结果表明,新的方法具有很高的可行性和实用性。In order to make the multimedia files play more smoothly,the anti-collision technology for multimedia system was designed and implemented, the work procedure and the cause of data flow collision of the multimedia information system were analyzed,and the ADM5120 chip was used as the core. The whole data flow of the multimedia system is monitored and controlled by the control module to realize data flow transmission. The data stream is decoded into an electric signal by the CODEC module. The sequencial storage of start bootstrap program,kernel and relevant document of multimedia system is conducted by the reasonable storage module to avoid the conflict of the data stream. In the design process of software,the design of ALOHA anti-collision algorithm avoids the occurrence of the collision among the data flows in the multimedia system. The procedure code of the information collision prevention is given. The experimental results show that the new method has high feasibility and practicability.

关 键 词：多媒体 防信息碰撞 数据流 编解码模块 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TP302.1[自动化与计算机技术—计算机科学与技术]