公交车自动报站器

毕 业 设 计（论文）

2015 届

题 目 公交车语音显示报站器的设计

专 业 电子信息工程 学生姓名 学 号 指导教师 论文字数 完成日期

湖 州 师 范 学 院 教 务 处 印 制

湖州师范学院本科毕业论文

公交车语音显示报站器的设计

摘要：随着现代社会的不断发展，所有交通工具都在向着越来越人性化的方面发展，公交车语音显示报站器就是其中一个典型例子。本设计以STC89C51为控制器，主要由温度传感模块，显示模块，语音模块，无线发射模块，单片机模块构成，总共有两块电路板。当按下对应按键时，播放当前站名和下一站名并显示在LCD上，实时监控当前车内温度并且显示在LCD上。如果下车按键被按下，通过无线芯片发送信息到单片机，随后通过喇叭提示有人下车。本操作系统方便简单，能够较好的完成设计要求。 关键词：语音提示，无线芯片，LCD显示

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湖州师范学院本科毕业论文

The Design of Display Voice Bus Station Reporting Device Abstract: With the continuous development of modern society, all vehicles are increasingly toward human development, the Display voice bus station reporting device is one typical example.The design for the controller to STC89C51 mainly by the temperature sensor module, the display module, voice module, wireless transmitter module, MCU modules, a total of two circuit boards.When you press the corresponding button, the playback of the current station name and the next name, real-time monitoring of the current temperature inside the vehicle and displayed on the LCD. If the off button is pressed, by sending information to the wireless chip microcontroller, followed by prompt someone to get off the bus.The operating system is simple and convenient, perfect to complete the design requirements.

Keywords: Voice prompt , Wireless chip，LCD display

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湖州师范学院本科毕业论文

目 录

第一章 绪 论 ...................................................................................................................................................... 5

1.1 选题的意义 .......................................................................................................................................... 5

1.2 研究现状及发展趋势 .......................................................................................................................... 5

1.2.1 研究现状 .................................................................................................................................. 5

1.2.2 发展趋势 .................................................................................................................................. 5

1.3 论文研究的目标及内容 ...................................................................................................................... 5

1.3.1 论文研究的目标 ...................................................................................................................... 5

1.3.2 论文研究的内容 ...................................................................................................................... 5

1.4 本章总结 .............................................................................................................................................. 5

第二章 系统硬件电路 ........................................................................................................................................ 6

2.1 系统总体框架 ...................................................................................................................................... 6

2.2 单片机最小系统 .................................................................................................................................. 6

2.2.1 单片机选择 .............................................................................................................................. 6

2.2.2 单片机原理图 .......................................................................................................................... 7

2.2.3 晶振电路 .................................................................................................................................. 7

2.2.4 复位电路 .................................................................................................................................. 8

2.3 温度检测模块 ...................................................................................................................................... 8

2.3.1 温度传感器的选择 .................................................................................................................. 8

2.3.2 DS18B20引脚功能及原理图 ................................................................................................. 8

2.3.3 DS18B20的工作方式 ............................................................................................................. 9

2.4 液晶显示模块 ...................................................................................................................................... 9

2.4.1 液晶屏的选择 .......................................................................................................................... 9

2.4.2 LCD5110介绍及引脚图 ....................................................................................................... 10

2.4.3 LCD5110初始化及写数据 ................................................................................................... 10

2.5 语音模块 ............................................................................................................................................. 11

2.5.1 语音芯片选择 ......................................................................................................................... 11

2.5.2 语音芯片ISD1730简介 ......................................................................................................... 11

2.5.3 ISD1730原理图 ..................................................................................................................... 12

2.5.4 ISD1730的录音及工作 ......................................................................................................... 12

2.6 无线通信模块 .................................................................................................................................... 13

2.6.1 nRF24L01原理图 .................................................................................................................. 13

2.6.2 nRF24L01的工作原理 .......................................................................................................... 13

2.6.3 nRF24L01的工作方式 .......................................................................................................... 13

2.7 键盘模块 ............................................................................................................................................ 14

2.7.1 键盘去抖问题 ........................................................................................................................ 14

2.7.2 键盘扫描控制方式 ................................................................................................................ 14

2.7.3 键盘具体设计 ........................................................................................................................ 15

2.8 本章总结 ............................................................................................................................................ 15 3

湖州师范学院本科毕业论文

第三章 系统软件程序设计 .............................................................................................................................. 16

3.1 软件设计总体流程图 ........................................................................................................................ 16

3.2 系统子程序流程图 ............................................................................................................................ 17

3.2.1 语音模块流程图 .................................................................................................................... 17

3.2.2 无线模块流程图 .................................................................................................................... 18

3.3 本章总结 ............................................................................................................................................ 18

第四章 系统的检测与调试 .............................................................................................................................. 19

4.1 温度最小区分度测试 ........................................................................................................................ 19

4.2 主电路板按键及语音测试 ................................................................................................................ 19

4.3 主电路板与副电路板无线工作测试 ................................................................................................ 19

4.4 设计结果 ............................................................................................................................................ 19

第五章 实验结果与设计总结 .......................................................................................................................... 20

5.1 实验结果 ............................................................................................................................................ 20

5.2 设计总结 ............................................................................................................................................ 20

参考文献 ............................................................................................................................................................ 21

结束语 ................................................................................................................................................................ 22

致谢 .................................................................................................................................................................... 23

附录 .................................................................................................................................................................... 24

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