一种32路嵌入式硬盘录像机的设计与实现  

Design and realization of a thirty-two-channel embeded digital harddisk video recorder

作　　者：梁爱华[1] 田紫君[1] 

机构地区：[1]北京联合大学电子信息技术实验实训基地

出　　处：《信息通信》2008年第3期60-63,共4页Information & Communications

摘　　要：目前多路嵌入式硬盘录像机多是4路、8路。16路以上的很少,主要存在的问题是成本高、开发和生产难度大。本文提出基于Philips公司的多媒体数字信号处理器PNX1700和Techwell公司新推出的TW2835来实现32路嵌入式的硬盘录像机方案。本方案的主要优点是成本低,开发和生产难度小,易于大规模生产应用。本文介绍了PNX1700和TW2835的主要性能和特点,比较详细阐述了以PNX1700为核心的32路嵌入式硬盘录像机的构成和工作原理,提出了简单可靠地扩展硬盘接口的一种方案,使其能保存更多的录像资料。文中还说明了主、从软件的设计方法和工作流程,最后对系统的应用作了介绍。此方案拥有广阔的应用前景。So far many multi-channel embeded harddisk video recorders are four-channel or eightchannel. That of more than sixteen-channel is lacking. The main problem is high cost and developing and producing difficulty. This paper brings forward a thirty-two-channel embedded scheme based on multimedia digital signal processor, PNX1700 of Philips Co and TW2835 of Techwell Co. The strongpoint of this scheme is low cost and less difficult developing. It can be used in a big way. The paper firstly introduces the main performance and characteristics of PNX1700 and TW2835., expatiates the composing and work principle of thirty-two-channel embedded harddisk video recorder which kernel is PNX1700. The paper also puts forward a scheme that simply and reliably extends harddisk interface. In this way more video data can be saved. The paper still explains its design of primary and secondary software and work flow. Finally the application of the system is introduced. The scheme has wide application foreground.

关 键 词：PNX1700 TW2835 嵌入式 录像机 USB SATA 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]