基于单片机的公共汽车报站器设计设计

基于单片机的公共汽车报站器设计设计

号：

毕业设计说明书

题 目： 基于单片机的公共

汽车报站器设计

学 院： 信息与通信学院

专 业： 电子信息工程

学生姓名： 满永泉

学 号： 0901130435

指导教师： 纪元法

职 称： 教授

题目类型：理论研究  实验研究 工程设计 工程技术研究 软件开发

2013 年 5 月 21 日 桂林电子科技大学毕业设计（论文）报告用纸 第 2 页 共 2 页

摘 要

随着社会的发展，城市聚集的人口越来越多，城市的交通压力也越来越大，因此公共汽车也随之成为了人口集中地方的一种重要交通工具。公交车已经成为一般市民和学生的必须的交通工具，目前，公交车上采用的公交报站系统具有语音报站和显示的基本功能，为满足乘客和司机的要求，公交报站系统应该具备有最基本的手动报站、自动的卫星定位报站，和显示汉字功能，这样自动报站的时候能很好地减轻司机的负担，从而提高了驾驶的安全性；当自动报站功能无法使用的时候，手动操作也能完成报站功能。完善的公交系统无疑能够减轻交通压力，为此不断地区完善公交系统有着重要的意义。

本论文设计的是一种GPS定位自动报站和手动报站的功能公共汽车报站器，它同时还有其他的服务提示语音和LCD显示。报站器通过卫星收集信息，当到达相应的站点就自动报站，与此同时也备有手动报站的功能，这是为了防备当自动报站系统出现故障的时候，通过自己操作可以实现手动报站；在报站的同时在LCD屏上显示出站名，为了显示明了，本设计还设计了LED流水指示灯，用来指示到达的站点。

关键词：STC89C52RC；GPS 卫星定位；语音播报；LCD显示

桂林电子科技大学毕业设计（论文）报告用纸 第 2 页 共 2 页

Abstract

With the development of society, more and more concentrated population of the

city，the city's traffic pressure is also growing, so ,the bus also will become an important

means of transport of the population is concentrated place. The bus has become the

general public and students must transport, Currently, the bus stop announcement

system in the bus have a voice stations and display the basic functions, to meet the

requirements of the passengers and the driver, the bus-stop system should have a basic

manual newspaper stand, the automatic satellite positioning newspaper stand, and

display Chinese characters functions, such automatic station can reduce the burden on

the driver, thus improving the safety of driving; When auto-stop function can not be

used, manual operation can be completed at station function. Improve the public

transport system can undoubtedly alleviate the traffic pressure, this constantly region of

great significance to improve the public transport system.

This thesis is a GPS positioning station and manual function of the stops

automatically at the bus-stop device, it also has other service voice prompts and LCD

display. Stop device to collect information via satellite, when reaching the appropriate

site on the automatic station, at the same time with manually newspaper stand, this is in

order to prepare when auto-stop system failure, can be achieved through their own

operating manual at station; While the stops on the LCD screen shows the name of the

station, in order to show clear, the design also designed the LED indicator of water used

to indicate the site of arrival.

Key words: STC89C52RC ; GPS satellite positioning; Voice broadcast; LCD display 桂林电子科技大学毕业设计（论文）报告用纸 第 2 页 共 2 页

目 录

引言 ............................................................................................................................... 1

1 方案设计 ................................................................................................................ 1

2 设计要求 ................................................................................................................ 2

3 器件的选择与介绍 ............................................................................................. 2

3.1 单片机的选择与介绍 ................................................................................................................ 2

3.2 语音芯片选择与介绍 ................................................................................................................ 6

3.2.1 语音芯片的特点 ...................................................................................................................... 6

3.2.2 语音芯片的电气特性 ............................................................................................................ 7

3.2.3 语音芯片内部寄存器 ............................................................................................................ 7

3.2.4 独立按键工作模式 ................................................................................................................. 8

3.3 GPS定位原理与介绍 ................................................................................................................. 9

3.4 LCD12864液晶屏的概述 ........................................................................................................ 11

3.5 TDA2822M的概述....................................................................................................................... 14

4 硬件电路的设计与分析 .................................................................................. 15

4.1 系统硬件电路的设计与分析 ................................................................................................ 15

4.2 电源电路的设计与分析 ......................................................................................................... 15