论文总字数：32404字

摘 要

自从上个世纪50年代以来，人类社会逐步进入信息时代，很多科技领域都取得重大进步。但是，正如任何事物都有其两面性，科技使人们享受到越来越美好生活的同时，也带来了关于人们私人信息的安全问题。为了使人们不再为安全问题所困扰，各种生物识别技术应运而生。其中，应用更加广泛、更加热门、技术也比较成熟的当属指纹识别技术。每个个体的指纹特征都是只属于自己的印记，这种印记是惟一的，并且不会随着时间的推移而产生任何改变。因此，相对来说，指纹识别技术在应用前景以及可行性方面更占上风。电视节目丰富多彩，但许多孩子由于缺乏自我控制而容易上瘾，这对许多家长来说是一个问题。指纹遥控器可以让家长不再为这个问题所困扰。同时，它经过改良后，将会外观更加美观、功能更加全面、更加人性化等等，为人们带来更好的体验。

本文详细阐述了以STM32单片机为核心，进行基于指纹识别的电视智能遥控器装置设计开发的整个过程。整个装置具体实现的功能有指纹的添加、指纹的比对、指纹的删除和以及可控定时。在分析制定了设计方案以后，分别介绍了整个装置的硬件设计、软件设计以及最后的软硬件综合调试测试等三个关键部分。经过验证，该设备具有较高的可靠性、快速识别、综合功能，并能很好地满足要求。

关键词：STM32单片机，嵌入式系统，指纹识别，三极管开关电路

Abstract

Since the 1950s, people has gradually passed into the information age, and many scientific and technological fields have made great progress. However, just as everything has two sides, science and technology not only enable people to enjoy the better and better life, but also bring security problems about people's personal information. People's demand has promoted the development and progress of science and technology, and various kinds of biometric identification technology have emerged at the historic moment. Among them, fingerprint identification is more widely used, more popular and has more mature technology. Each individual's fingerprint is a unique mark that belongs only to him or her, which will not change over time. Therefore, relatively speaking, fingerprint identification technology is better in the application prospects and feasibility.TV programs are colorful, but many children are addicted to them due to lack of self-control, which is a problem for many parents. The fingerprint remote control can help parents avoid this problem. At the same time, in the future, the fingerprint remote control will be improved to be more beautiful in appearance, more comprehensive in function, more humanized and so on, bringing people better experience.

This paper elaborates the whole process of designing and developing the TV intelligent remote control device based on fingerprint recognition with stm32 microcontroller as the core. The specific functions of the device include fingerprint addition, fingerprint matching, fingerprint deletion and controllable timing. After analyzing and making the design scheme, the hardware design, software design and the final software and hardware comprehensive debugging test of the whole device are introduced. It is proved that the device has high dependability, rapid identification and comprehensive functions, and can meet the requirements well.

KEY WORDS: STM32 chip microcomputer, embedded system, fingerprint identification, Triode switch circuit

目 录

摘 要 I

Abstract II

第一章 绪论 1

1.1 指纹识别技术的历史 1

1.2 指纹识别技术现状及前景 2

1.3 指纹识别技术步骤及特点 3

1.4 指纹识别遥控器研究意义 4

第二章 总体设计 5

2.1 需求分析 5

2.2 相关模块的选择 6

2.2.1 指纹模块的选择 6

2.2.2 通信方式的选择 8

2.2.2 MCU的选择 9

第三章 基于指纹识别的电视遥控器电路设计 12

3.1 相关功能电路设计 12

3.1.1 电源模块电路的设计 12

3.1.2 下载电路设计 14

3.1.3 指示灯与按键电路设计 15

3.1.4 三极管开关电路设计 17

3.1.5 启动电路设计 19

3.2 系统主电路设计 20

3.3 系统电路板设计 21

3.3.1 AD17软件介绍 21

3.3.2 电路板具体设计 21

第四章 基于指纹识别的电视遥控器程序设计 27

4.1 前期准备 27

4.2 指纹识别功能 29

4.3 可控定时功能 31

第五章 基于指纹识别的电视遥控器系统测试 34

5.1 指纹模块测试 34

5.1.1 前期准备 34

5.1.2 指纹模块测试 35

5.1.3 测试结果 38

5.2 电路板测试 38

5.3 指纹模块与电路板测试 38

5.4 系统现场综合测试 39

第六章 总结与展望 40

6.1 总结 40

6.2 展望 40

致 谢 41

参考文献 42

附录一 指纹遥控器硬件电路原理图 44

附录二 指纹遥控器硬件电路板 45

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