基于单片机的公交语音自动报站器系统设计
基于单片机的公交语音自动报站器系统设计(任务书,开题报告,论文12000字)
摘 要
随着我国经济的飞速发展和城市化进程的加深,城市人口日益膨胀,机动车辆急剧增加,城市交通压力越来越大。发展公共交通事业是为居民提供安全有序的出行方式的不可替代的途径,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,是中国解决交通问题的重要措施。公交车报站系统是公共交通系统的一个重要的组成部分,设计先进的报站系统能为广大居民乘车提供优质的服务,提高公交系统的服务水平。
本设计利用了Atmol公司的AT89C51单片机来设计一个公交语音自动报站系统。用JHD162A LED来提供站台信息的显示;用ISD1700系列语音芯片来对语音进行各种操作控制;并使用DF无线收发模块及PT2262、PT2272编解码芯片来实现信号的无线收发与识别。最后通过AT89C51对各个模块的控制实现无线收发与识别、信息显示及语音报站任务。
关键词:51单片机,ISD1700语音芯片,DF无线收发模块,PT2262/PT2272芯片,JHD 162A,
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. [资料来源:https://www.doc163.com]
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,ISD1700s chip,DF wireless transceiver modules,PT2262/PT2272 chi,;JHD 162A
根据对公交报站器的调研,最后确定采用单片机来设计既能手动又能自动报站的公交语音自动报站系统。此设计主要采用了AT89C51单片机、JHD162A LED显示模块、DF无线收发模块及PT2262、PT2272编解码芯片、ISD1700系列语音芯片来设计 [资料来源:Doc163.com]
选用TMEM公司的AT89C51作为控制芯片,成本低,开发周期短,配合各种专用芯片的使用能够实现丰富的功能。并且51单片机具有高效能,资源占用率低等特点。目前51单片机的使用非常广泛,关于51单片机设计开发的资料非常丰富,很适合初学者自学。使用C语言编程可以实现丰富的功能。
设计思路
本系统采用两种工作模式,分别为自动模式和手动模式。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,保证系统的正常运行。本次设计采用一个AT89C51单片机作为接收端的控制器。在每个站台上安装上无线发射装置,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。而公交车上则安装主体器件。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。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。C51对无线接收模块的端口进行扫描,当公交车即将到站进入信号范围时,端口电平发生改变,C51识别到后先调用语音芯片内部播放指针,让其指向预置的数据段,并进行播报。同时改变LCD的显示内容,将下一站的站名进行更新。接着下车指示灯亮起,通知到站乘客下车。车子驰离站台后信号消失,指示灯熄灭。
[来源:http://Doc163.com]