(论文 字数:29949 页数;59)摘 要:本文提出一种多路复合视频信号的采集与传输的设计方案。该方案在LPC2138微处理器上移植uCOS-II操作系统,采用USB接口芯片ISP1161A1的HOST方式连接USB摄像头进行视频数据的采集,然后,通过以太网接口芯片ENC28J60接入以太网,进行多路复合视频信号的网络传输。本方案包括USB HOST驱动的开发、USB驱动层USBD的开发、以太网接口芯片ENC28J60的介绍以及底层硬件驱动的开发、TCP/UDP/IP协议的应用,对整个系统的设计进行了比较全面的论述。针对目前的情况,对一些难点技术进行深入学习,主要讨论以下几个方面的问题: 如何将一个uCOS-II操作系统移植到微处理器上;如何编写USB接口芯片的HC驱动程序;怎样设计USBD层;以及以太网传输的构建。 关键字:uCOS-II操作系统,USB HOST,以太网传输,IP协议栈 Abstract :This paper presents a multi-channel composite video signal acquisition and transmission design. The program transplants uCOS-II operating system on the LPC2138 microprocessor, using the HOST ISP1161A1 as USB interface chip connected USB camera for video data acquisition, and then through the Ethernet interface chip ENC28J60 access to Ethernet, for multi-channel composite video signal transmission network. The program includes a USB HOST-driven development, USB driver layer USBD development, ENC28J60 Ethernet interface chip on the bottom and hardware-driven development, TCP / UDP / IP protocol to the applicat -ion of the whole system design of a more comprehensive exposition. In view of the current situation, through some technical depth study, discuss on the following areas : How would one transplanted uCOS-II operating system to the microprocessor; how to prepare the USB interface chip HC Driver; how to design USBD layer; Ethernet transmission and Construction. Keywords: uCOS-II operating system, USB HOST, Ethernet Transfer, IP Protocol Stack 目 录 1 选题背景 |
多路复合视频信号的采集与传输的设计
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