本文選題：嵌入式　切入點：門禁系統(tǒng)　出處：《西安電子科技大學》2012年碩士論文　論文類型：學位論文

【摘要】：隨著經(jīng)濟發(fā)展和人民生活水平的不斷提高,人們對安全的需求日益增長。目前,安防系統(tǒng)已廣泛應用于現(xiàn)代化辦公大廈,銀行,機房,智能化小區(qū)等區(qū)域,門禁系統(tǒng)作為安防系統(tǒng)的重要組成部分,也越來越受到人們的重視。本文設(shè)計和實現(xiàn)了一種嵌入式門禁系統(tǒng),該系統(tǒng)基于圖像識別,面向中小企業(yè)以及個人終端用戶。在硬件方面,本文設(shè)計實現(xiàn)了燈板與主板兩個部分。所設(shè)計的燈板完成可見光、紅外線視頻圖像數(shù)據(jù)的傳輸,具體包括圖像傳感器的選擇、配置,LED相對于圖像傳感器的角度和位置計算,LED驅(qū)動電路設(shè)計等。所設(shè)計的主板完成視頻圖像數(shù)據(jù)的采集以及其它一系列系統(tǒng)功能,具體包括中央處理器(OMAP3530)的選擇和以其為核心的視頻圖像采集系統(tǒng)和其它外圍電路的搭建。在軟件方面,本文設(shè)計了基于Verilog的程序用以實現(xiàn)圖像數(shù)據(jù)的抽幀選擇,同時設(shè)計了基于OMAP3530平臺的系統(tǒng)軟件用以完成進程間通信,圖像數(shù)據(jù)的采集處理,交叉編譯環(huán)境的搭建,系統(tǒng)物理內(nèi)存的分配等。 本文設(shè)計的門禁系統(tǒng)具有一定的可擴展性,經(jīng)由相應的軟硬件測試,滿足嵌入式門禁系統(tǒng)的實時性、通用性、低功耗、微型化的要求,具有較高的應用價值。
[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.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TP368.1;TP391.41

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