毕业设计--基于单片机的公交车自动报站系统

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1、 基于单片机的公交车自动报站系统设计 【摘要摘要】随着多媒体技术和网络技术的发展，许多旧的生产生活方式逐渐被新技术 代替，本文就针对公交车报站问题提出了解决方案。系统使用单片机 AT89C51来控制语音 合成芯片 ISD4004和液晶显示模块 LCD1602以及无线收发模块 PT2262/PT2272。 语音合成芯 片 ISD4004,采用模拟数据半导体存储器直接存储的专利技术， 即将模拟语音数据直接写入 单个存储单元，不需经过 A/D、D/A 转换，因此能够较好地真实再现语音的自然效果，避 免了一般固体语音电路因为量化和压缩造成的量化噪声和失真现象。配合液晶屏显示，就 使得该报站系统更加实用

2、，实现报站的准确性、及时性、稳定性和操作简单、方便、智能 等特点。 【关键字关键字】单片机，语音提示，文字显示，公交报站 1 ABSTRCT With the development of multimedia technology and network technology, many of the old way of production and living is gradually replaced by new technology, this paper will put forward the solutions for the bus stops. System using

3、 single chip microcomputer AT89C51 to control the speech synthesis chip ISD4004 and LCD1602 LCD display module and wireless transceiver module PT2262 / PT2272. Speech synthesis chip ISD4004, patented technology of semiconductor memory storage directly using data simulation, the simulation of voice a

4、nd data directly into A single storage unit, do not need through A/D, D/A conversion, thus can reproduce the voice better real natural effect, avoids the general solid voice circuit for quantitative and quantitative noise and distortion caused by compression. Cooperate with LCD display, makes the paper station system more practical, realize the stops the accuracy, timeliness, stability, and the operation is simple, convenient, smart, etc. KEY WORDS：Single-chip Microcomputer, Audio Prompt, Chara