(完整版)基于单片机的语音识别系统好毕业设计论文

优秀论文 审核通过 未经允许 切勿外传

基于单片机的语音识别系统

摘要

近几年来，智能化和自动化技术在玩具制造领域中越来越被关注。本文介绍一种智能化小车控制系统的设计——语音控制小车。语音控制小车是基于SPCE061A的代表性兴趣产品，它配合61板推出，综合应用了SPCE061A的众多资源，小车采用语音识别技术，可通过语音命令对其行驶状态进行控制 。首先介绍了SPCE061A的主要性能及其引脚的功能；接着完成了电源电路、复位电路、键盘电路、音频输入电路，音频输出电路和无线控制电路等硬件功能模块的设计。软件设计模块能实现智能小车的前进、后退、转向、停止、避障、表演动作以及循线等功能。测试表明，在环境背景噪音不太大，控制者的发音清晰的前提下，语音控制小车的语音识别系统能对特定的语音指令做出智能反应，做出预想中的有限的动作

关键词 ：spec061a 语音识别 驱动电路 声控小车 智能反应

Abstract

In recent years, Intelligent and automation technology in the toy manufacture paid more and more attention.Introduce an intelligent vehicle control system design. SPCE061A program the system to single-chip, based on implementation of the car's voice control, This paper introduces the and implementation. The SPCE061A's main characters and pin function are introduced firstly. Completed the power circuit, reset circuit, keyboard circuitry, audio input circuits, audio output circuit and control circuit of wireless of function modules. Software design module can achieve smart car forward, backward, turn, stop, obstacle avoidance, performing actions, as well as on-line functions. Test showed that the background noise in the environment is not too great, control persons under the premise of clear pronunciation, voice control car speech recognition systems for specific voice commands to make intelligent reaction, limited to the desired action.

Keywords: spec061a 、voice recogniton、Driving circuit、 Voice control dolly、intelirent response

目录

摘要 ............................................................................................................ I Abstract .................................................................................................. II 目录 ......................................................................................................... III 前言 ........................................................................................................... 1 1 方案介绍及设计简介 ........................................................................... 2

1.1

小车的控制要求及设计方案 ................................................. 2

小车的控制要求 .............................................................. 2 方案设计与论证 .............................................................. 2

1.1.1 1.1.2 1.2

SPCE061A 简介 .................................................................... 3

SPCE061A单片机概述 .................................................. 5 SPCE061A的介绍 .......................................................... 7 SPCE061A的结构 .......................................................... 7

1.2.1 1.2.2 1.2.3 1.3

SPCE061A 单片机强大的语音功能 .................................... 8

语音识别的原理 .............................................................. 8 系统的结构框图 .............................................................. 9

1.3.1 1.3.2 1.4

语音控制小车设计要求 ....................................................... 10

功能要求 ........................................................................ 10 语音控制小车的主要功能 ............................................ 10

1.4.1 1.4.2

1.4.3 1.4.4 2

参数说明 ........................................................................ 10 注意事项 ........................................................................ 10

电路设计及程序设计 ................................................................... 11 2.1 2.2 2.3

电路设计基础知识 ................................................................ 11 电路方框图及说明 ............................................................... 13 各部分电路设计 ................................................................... 13

电机的选择 .................................................................... 14 继电器驱动电路的设计 ................................................ 14 行驶状态控制电路设计 ................................................ 15 麦克录音输入及AGC电路 ......................................... 16 语音播报电路 ................................................................ 18

2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 3

软件设计 ...................................................................................... 19 3.1

软件流程图及设计思路说明 ............................................... 19

程序设计 ........................................................................ 20

3.1.1 3.2

模块设计 ............................................................................... 20

中断流程图部分 ............................................................ 20 语音识别部分 ................................................................ 22

3.2.1 3.2.2 4

连接和操作说明 .......................................................................... 25 4.1

硬件模块连接图 ................................................................... 25

功能说明 ........................................................................ 25 代码下载 ........................................................................ 26 训练小车 ........................................................................ 27 声控小车 ........................................................................ 28

4.1.1 4.1.2 4.1.3 4.1.4