鄉村客运报站系统的设计书与实现本科毕业论文.docVIP

基于单片机的乡镇客运汽车报站系统设计与实现 摘 要根据STC89C52单片机的特点和客运汽车报站器的特点，本文提出了一种用单片机控制语音芯片进行客运汽车语音自动报站的方法。同时给出了软硬件设计的方法，设计过程中包括硬件电路设计和软件程序编写两个方面，解释了单片机在应用过程中的方法和可能出现的问题。本文主要介绍硬件电路设计部分。利用STC89C52作为控制器，通过ISD4004语音芯片建立语音信息库，形成变化多样 的语音信息，利用其功放播放语音信息以及提示语音，同时运用LCD12864进行站名显示。当客运汽车到达某站点，用键盘控制本系统工作，通过语音电路输出语音信息和提示，同时站数信息在LED数码管上显示。整个系统硬件设计包括键盘电路、复位电路、显示驱动电路、显示电路、内存扩展电路模块。 本系统很大程度上提高客运汽车报站的准确性，可靠性，提高了客运汽车系统的服务质量。该系统组成简单，成本低廉，性价比高，在不发达的乡镇能够有广泛的实用。 【关键词】单片机ISD4004语音芯片Design and Implementation of the Passenger Car Stops System Based on Single- chip Microcomputer Abstract According to the characteristics of the ST89C52 Single-chip Microcomputer and the passenger car stops system, this article aims to put forward an appropriate method for the passenger car stops system passenger car stops system, taking advantage of a speech chip under the control of SCM. Meanwhile, this article also puts forward the designation of software and hardware, including the hardware circuit designation and the software programming. Ways and problems of SCM application are also explained. This article mainly introduces the hardware circuit designation. The STC89C52 is taken as a controller. With the ISD4004 voice chip as a speech information database, various kinds of speech information shall be produced. Then the amplifier shall broadcast those speech information and speech prompt，and the LCD12864 is applied for stops. When a passenger car stops at a certain station, a keyboard is used to control the whole system. By way of speech circuit, speech information and prompt shall be output. In addition, the station shall be displayed at the nixie tube. The hardware designation of the whole system includes keyboard circuit, reset circuit, demonstration driving circuit, display circuit and internal storage expansion circuit module. To some extent, this system is efficient for the increasing of the accuracy and reliability of passenger car stops automatic system. It also makes great contributions to the quality of the passe