公交车语音报站系统___毕业论文概述.doc

毕业设计 完成日期 2013年 5 月 15 日 摘　要 随着国民经济的快速发展，我国城市人口高度集中并大幅增长, 交通需求不断扩大导致城市道路交通拥挤，乘坐公交车近年来城市公交事业迅速发展，靠售票员报站的方式已经不能满足实际需要，,对系统软件设计和硬件实现进行了详细的描述，主要内容是用STC89C52单片机为核心控制元件，WT588D语音芯片为录音模块，以液晶屏为显示模块，以独立按键K1、K2为输入设备，扬声器为语音输出设备，设计一个带语音报站和液晶显示功能的公交车报站系统。先将语音内容通过录音键录入语音芯片中，当按下放音键时，语音模块进行放音同时通过液晶屏显示对应的文字信息。 关键词：　单片机　语音提示　液晶屏　公交报站 Abstract With the take-off of the national economy, Chinas urban population is remarkably exploding. The increasing demand for transports gives rise to traffic congestion in urban areas. Therefore, public bus system is not only an efficient way to solve the problem of traffic congestion but a way to put the “Low-Carbon Transportation” into of date. The recent development of public transportation requires a phonetic system which can automatically announce bus stations. The advanced system is conducive to solving many problems and improving service quality in transportation. This paper introduces the automatic stop announcer based on STC89C52 and aims to explicitly describe the software and hardware applied in the system. The main features of the system are that STC89C52 is used for core controlling components, WT588D pronunciation chip for recording, LCD12864 screen for video displays, independent key K1 and K2 for input device, loudspeaker for output device. This is designed for a stop announcement and display system for buses. The voice message is recorded in the pronunciation chip in advance. When the “Play” key is pressed, the voice of station announcement simultaneously appears with the information on the screen. This system enjoys the advantage of stability, simplicity and reliability. The full-featured system is an ideal model and is easily put into use. Key words: 　Microcontroller　Voice prompt　LCD screen　Bus stop announcer第1章　绪　论 1 1.1　课题研究的背景 1 1.2　课题研究的意义 1 1.3　课题研究的主要内容 1 第2章　系统总体设计方案 3 2.1　功能要求 3 2.2　设计思路 3 2.3　方案选择 3 2.3.1　显示模块选择方案 3 2.3.2　按键选择方案 4 2.3.3　芯片选择方案 4 2.4 总体设计框图 5 第3章　系统硬件设计 6 3.1　概述 6 3.2　主控模块 6