交通信息视频采集卡的缓存与网络传输实现

【作者】 戴静；

【导师】 刘济林；

【作者基本信息】 浙江大学 ， 信息与通信工程， 2006， 硕士

【摘要】 随着社会经济发展,交通系统日益复杂。为了给交通系统的管理提供各种实时交通信息,以方便,高效的利用和管理现有的交通系统,我们在第一代交通信息采集卡的基础上,进行了第二代交通信息采集卡的前期研发。 该设备由图像传感器模块,图像压缩与缓存模块,网络传输模块,图像处理模块四部分组成。本文将对网络传输模块和图像缓存模块的设计作一个详细的说明。 本文首先介绍了智能交通系统的发展背景和基本概念,交通信息采集设备的发展以及基于视觉的交通信息采集设备的优势。第二章介绍了我们课题的任务以及方案的总体设计,以及本人在课题中所承担的研发任务。第三章介绍了网络传输模块的具体实现,包括微控制器ARM芯片LPC2214的配置方案,网络芯片LAN9115的初始化配置和驱动程序,介绍了网络传输所用的协议以及具体实现。第四章介绍了图像缓存模块的具体实现,包括同步动念随机存储器(SDRAM)结构和工作原理的介绍,对SDRAM读写控制器的实现,以及仿真结果。第五章介绍了后端图像处理系统的方案设计,以及后续的工作的要点。最后一章对全文进行了总结,并提出日后工作的重点与方向。更多还原

【Abstract】 With the development of society and economy, the traffic system became becomes more and more complex. In the interest of providing the management of traffic system with real-time traffic information to achieve efficient management and make full use of the traffic systemmanage the traffic system efficiently and make full us of it, we investigate the second generation of Traffic Information Analysis System based on the first generation of Traffic System.Our system consists of four parts, including the Image Sensor Module, Image Compression and Storage Module, Network Transmission Module, and Image Processing Module. This articlethesis will concentratefocuses on the design and implementation of the Network Transmission Module and Image Storage Module.This article thesis firstly introduces the development background and basic definition concept of the Intelligent Traffic System, also the development of Traffic Information Collection System and the advancement advantages of the systems based on viewvisual information. The second part of this article introduces the task and overall design of our project, and the parts I have investigatemy work in this project. The third part introduces the design and implementation of the network Network transmission Transmission moduleModule, including the configuration and drivers for chip LPC2214 and LAN9115, also the network protocol used in Network Transmission Module and how t o its implementation. The forth part introducetalks about the implementation of the image Image storage Storage moduleModule, including the SDRAM’s theory and architecture and theoryof Synchronous Dynamic Random Access Memory (SDRAM), how to implement the controlling ofthe implementation of SDRAM read-write controllor, and the emulation results. The fifth part introduces the design of the image Image processing Processing moduleModule. At last the sum-up gives the key-point and direction ofthe continuing future work.更多还原