基于单片机的公交语音自动报站器系统设计(12000字)
摘 要
随着我国经济的飞速发展和城市化进程的加深,
Speech based on single chip bus stop reporter system
Abstract
With the development of national economy and the deepening of the process of urbanization. The pressure on city traffic is increasing because of the Increasing urban population and the Sharp increase in motor vehicles. Development of public transport is the Irreplaceable way for the Residents safe and orderly travel. The high-quality of Public transport management and public services is a effect way to attract People take bus. and the important measure for China to solve the traffic problems. The bus stop device is a very important Part of Public transport system. The Advanced design of the device can serve people well and improve the Service level of public transportation systems.
At present, the city buses have generally installed the station voice system which gives the passengers a very comfortable experience. However, most of the system is manual. The driver have to control it when the car entering and leaving the station. At this time, the traffic condition is so complicated that it usually brings security risks. The paper design a bus automated voice system with Atmel Company’s AT89C51 single-chip. Using JHD162A LCD to display the station's information, ISD1700 series voice chip controls the voice paragraph and DF wireless transceiver module,PT2262/PT2272 chip to achieve the signal's wireless transmission and identification. Finally, all the modules are controlled by AT89C51 and the simulation of the system.
KEY WORDS: AT89C51,;JHD 162A
根据对公交报站器的调研。本次设计采用一个 AT89C51单片机作为接收端的操控器。C51对无线接收模块的端口进行扫描,保证系统的正常运行。无线接收识别模块由无线接收头通过PT2272解码芯片解码接收到的信号。包括JHD 162A液晶显示模块、无线接收识别模块以及语音播报模块等。而公交车上则安装主体器件。当自动模式出现问题时可以切换到手动模式进行应急操作,关于51单片机设计开发的资料非常丰富,公共交通管理的高质量和公共服务水平的人性化是吸引居民采用公交出行的有效途径,信号由无线发射头通过PT2262编码芯片不断向一定半径范围内发射无线信号。发展公共交通事业是为居民提供安全有序的出行方法的不可替代的途径,分别为自动模式和手动模式。接着下车指示灯亮起,城市人口日益膨胀,城市交通压力越来越大。同时改变LCD的显示内容,将下一站的站名进行更新。
设计思路
本系统采用两种工作模式,当公交车即将到站进入信号范围时,开发周期短,并进行播报。使用C语言编程可以实现丰富的功能。
#p#副标题#e#
目 录
前 言 1
第1章 设计概述 2
1.1 课题的研究意义 2
1.2 国内外现状及发展趋势 2
1.3课题设计介绍 3
第2章 概要设计 4
2.1 设计思路 4
2.2 系统框图 4
2.3 模块设计分析 5
2.3.1 无线收发编解码模块 5
2.3.2 语音模块 5
2.3.3 语音模块 6
2.4 系统体系结构 6
第3章 硬件设计 7
3.1 硬件电路设计 7
3.1.1 主控芯片AT89C51 7
3.1.2 语音芯片ISD172 8
3.1.3 DF无线收发模块 13
3.1.4 DF JHD162A液晶显示模块 17
第4章 软件设计 20
4.1系统程序流程图 20
4.2程序子函数模块代码 21
4.3系统任务设置 26
第5章 电路设计与绘制 30
5.1电路板制作软件Protel 99 SE介绍 30
5.2 电路设计与绘制 30
5.2.1 电路原理图 31
5.2.2 转化成CAD图纸 32
结 论 33
谢 辞 34
参考文献 35
外文资料翻译 36