嵌入式门禁系统的设计与实现

发布时间：2018-03-19 20:57

本文选题：嵌入式　切入点：门禁系统　出处：《西安电子科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着经济发展和人民生活水平的不断提高,人们对安全的需求日益增长。目前,安防系统已广泛应用于现代化办公大厦,银行,机房,智能化小区等区域,门禁系统作为安防系统的重要组成部分,也越来越受到人们的重视。本文设计和实现了一种嵌入式门禁系统,该系统基于图像识别,面向中小企业以及个人终端用户。在硬件方面,本文设计实现了灯板与主板两个部分。所设计的灯板完成可见光、红外线视频图像数据的传输,具体包括图像传感器的选择、配置,LED相对于图像传感器的角度和位置计算,LED驱动电路设计等。所设计的主板完成视频图像数据的采集以及其它一系列系统功能,具体包括中央处理器(OMAP3530)的选择和以其为核心的视频图像采集系统和其它外围电路的搭建。在软件方面,本文设计了基于Verilog的程序用以实现图像数据的抽帧选择,同时设计了基于OMAP3530平台的系统软件用以完成进程间通信,图像数据的采集处理,交叉编译环境的搭建,系统物理内存的分配等。本文设计的门禁系统具有一定的可扩展性,经由相应的软硬件测试,满足嵌入式门禁系统的实时性、通用性、低功耗、微型化的要求,具有较高的应用价值。
[Abstract]:With the development of economy and the improvement of people's living standard, people's demand for security is increasing day by day. At present, security system has been widely used in modern office buildings, banks, computer rooms, intelligent residential areas, etc. As an important part of the security system, the access control system has been paid more and more attention. In this paper, an embedded access control system is designed and implemented, which is based on image recognition. In the aspect of hardware, this paper designs and implements two parts of lamp board and main board. The designed lamp board completes the transmission of visible light, infrared video image data, including the choice of image sensor. Design of LED driver circuit with respect to image sensor. The main board designed to complete video image data acquisition and a series of other system functions. It includes the selection of central processor OMAP3530), the construction of video image acquisition system and other peripheral circuits based on OMAP3530). In software, a program based on Verilog is designed to select the frame of image data. At the same time, the system software based on OMAP3530 platform is designed to complete inter-process communication, image data acquisition and processing, cross-compiling environment, system physical memory allocation, and so on. The access control system designed in this paper has certain expansibility, and it can meet the requirements of real-time, generality, low power consumption and miniaturization of embedded access control system through the corresponding software and hardware tests. It has high application value.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TP391.41

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