公交车语音报站及汉字显示系统设计

摘要

公共汽车成为城市人们出行的必备选择后所面临的问题是乘客们如何能够在正确的车站下车，如何知道这辆车开向哪里，途中还会经过哪些车站。在一些需要提示乘客注意的情况，比如车在转弯需要注意，或者需要让座等等，这时该怎么办？解决的办法就是利用公交车报站器播放语音，提示乘客。在当今社会，即使在私家车越来越多的今天，公交车仍然是人们出行的首选，因为公交车具有方便、快捷、车票便宜等优点。传统的公交车报站主要由售票员报站，但是有些售票员有着浓重的地方口音，给外地人乘坐公交车造成了困难，另外，随着无人售票车逐渐增多，公交车报站器就越显得重要了。

本文应用单片机技术、语音合成技术设计了一种公交车语音报站和汉字显示系统，它能很好的模仿人完成报站任务，从而解决了人工报站不准确不方便等问题。本文设计的新型的公交车语音报站系统，AT89C52单片机为核心，外扩ISD1730语音芯片，LED 显示器和行列驱动芯片。

主要有单片机的线编程模块，话筒，语音芯片，功放、键盘按钮、LED显示程序。通过对单片机语音模块的编程，实现语音播报，再有扬声器、及放大电路放大，同时也可以手动触发音频播放，设置站台号，再通过LED显示程序显示出来。该公交语音报站系统，方便简单、功能稳定，具有一键智能操作等功能。

【关键词】单片机、语音芯片、LED显示器

Abstract

Bus become necessary choice of city people travel after facing the question is how the passengers to get off the train at the right, how to know the car open to where, will also be on the way through which the station. In some of the passengers need to pay attention to the situation, such as car in turn need to pay attention to, or need to give up her seat, etc., then what should I do? The solution is to use the bus stops play the voice and prompt passengers. In today's society, even in today, more and more private cars, buses are still among their first choices of investment with people travel, because the bus has the advantages of convenient, quick and they are cheaper. Traditional bus stops is mainly composed of the conductor stops, but some of the conductor has a strong local accent, caused difficult for outsiders to ride the bus, on the other hand, as the unmanned vehicle, bus stops, the more important the.

This paper introduces the design principle of a new bus automatic stop reporting system, which centers AT89C52 Single Chip Micyoco, concerning ISD1730 speech chip, dot matrix LED character display screen and line driver chip. this system mainly include the single chip microcomputer line programming module, microphone, voice chip, power amplifier, the keyboard button, liquid crystal display program. Based on single chip microcomputer voice module programming, the realization of speech, no speaker, and amplifying circuit amplifier, at the same time can also manually trigger audio playback, set up the platform, through the LED display program. Change to bus voice stops system, simple, convenient and stable function, general promotion value

【keywords】singlechip、voicechip、LEDdisplay

目录

一、绪论 (1)

1.1研究背景及意义 (1)

1.2研究现状 (1)

1.3课题研究内容 (2)

二、系统总体方案设计 (3)

2.1方案论证 (3)

2.1.1控制模块 (3)

2.1.2语音模块 (3)

2.1.3显示模块 (4)

2.2总体方案设计 (4)

三、硬件电路设计 (5)

3.1控制电路设计 (5)

3.1.1AT89C52简介 (5)

3.1.2晶体振荡电路 (6)

3.1.3 复位电路 (7)

3.1.4 按键电路 (8)

3.2语音电路设计 (9)

3.2.1语音电路芯片简介 (9)

3.2.2语音电路设计 (13)

3.3 LED显示电路设计 (13)

3.3.1 LED显示方式 (14)

3.3.2 LED驱动原理 (15)

3.3.3显示电路 (16)

3.4电源 (16)

四、软件设计 (18)

4.1主程序流程图 (18)

4.2 录音程序流程图 (19)

4.3 放音程序流程图 (20)