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河南科技大学本科毕业设计（论文）
公交车自动报站系统设计
摘 要
我国城镇化发展非常迅速，城市规模快速膨胀，城市人口和机动车数量急剧增长。近年来由此而带来的城市交通拥堵问题非常严峻。城市建立完善的公交系统是解决城市交通拥堵的最廉价的方案，被国家大力扶持。国务院也颁布了优先发展公交系统的相关文件，公交车在城市交通中占据着越来越大的主体作用。
本设计旨在实现公交运行时报站的智能化，为乘客提供高效、便捷的服务。本设计要求系统能够自动语音播报到站信息，并能够显示到站信息。本设计利用GPS （全球定位系统），以89C51单片机为核心和基础。利用GPS获取比较精确的公交车位置信息；利用AT89C51单片机智能整合处理信息，发送控制指令；利用ISD1700系列语音芯片实现语音播报，JHD162A LCD液晶模块来显示到站信息，从而实现所有的功能。对设计结果利用proteus进行仿真和验证，可以达到预期的公交车全自动报站的功能，实现公交车到站提醒，即显示屏显示到站信息，语音系统自动播报站名。全程无需人工干预，实现全自动智能报站，安全可靠。本设计所采用的模块、元件廉价，系统可以长期稳定稳定，适合推广。
关键词：自动报站，GPS，89C51，JHD162
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河南科技大学本科毕业设计（论文）
The bus stops system automatically
ABSTRACT
The urbanization in our country is developing very quickly. The city’s expansion is very quickly, the urban population increase sharply, The number of cars on the road is growing so fast. For the past few years, the city’s traffic congestion problem is very serious. City establish a perfect public transportation system is the cheapest solutions to urban traffic congestion. It is national energetical support. The state council issued the state council on priority to the development of urban public transportation guidance \December 29, 2012. The bus in the city's traffic occupies a more and more important role.
This design aims to realize intelligent broadcasting station of bus information, provide efficient and convenient services for passengers. This design requirement system can automatic voice broadcast station information, and can display station information. This system USES the GPS (Global Positioning System Global Positioning System) with a 89c51 SCM as the core. This system uses GPS to obtain accurate vehicle location information. The use of 89c51 single-chip microcomputer to process information. Using ISD1700 to realize voice function. Though the JHD162A to display the information of stations. So as to realize the function of all. Using protest for the simulation and verification, the result of the design can achieve. The system fully without human intervention, and sage and reliable. This design uses the element is much cheaper. And the system can long-term and stable work, it is very suitable for promotion.
KEY WORDS：automatically broadcast, GPS, 89C51, JHD162
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河南科技大学本科毕业设计（论文）
目 录
前 言 ................................................................................................ 1 第1章 GPS报站器行业现状介绍 ................................................... 3 第2章 系统整体设计方案 ............................................................... 5 第3章 硬件模块选择 ....................................................................... 6 §3.1 主控芯片的选择 .................................................................... 6 §3.2 GPS接收模块的选择 ............................................................ 7 §3.3 语音模块的选择 .................................................................. 10 第4章 硬件设计 ............................................................................. 12 §4.1 主控模块 ............................................................................. 12 §4.2 GPS模块 ............................................................................. 14 §4.3 语音播报模块 ..................................................................... 17 §4.4 显示模块 ............................................................................. 21 §4.5 系统整体电路图 .................................................................. 25 第5章 软件研究与设计 ................................................................. 27 §5.1 单片机编程基本知识 .......................................................... 27 §5.2 主程序流程图 ..................................................................... 34 §5.3 语音模块流程图 .................................................................. 36 §5.4 显示模块流程图 .................................................................. 37 结 论 .............................................................................................. 39 参考文献 .......................................................................................... 40 致 谢 .............................................................................................. 42
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