摘 要众所周知,多位复杂的计算是人脑所不能胜任的,而且容易出错,故而计算器出 现了。计算器作为一种便利的快速计算工具,为人们解决了这一困扰。但是对于计算 器的设计,不能局限于只满足人们的简单传统的计算功能,应站在用户的角度丰富他 们的体验,使得计算器的使用更加智能化。84913
本论文是基于 51 单片机的语音时间计算器的设计。亮点是计时功能和语音播报, 创新点是突破常规的单一的手动输入方式,增设了语音输入功能,丰富了输入方式的 多样化。本设计的主要内容可归纳为:
(1)以 STC89C52 单片机为控制核心,连接和控制液晶显示器、语音芯片、时 钟芯片及一些外部拓展电路设备;
输入方式:采用可切换的双模式输入,即 4*4 的 16 个按键的键盘输入和语音识 别输入。
(2)输出方式:包括 LCD 液晶显示和实时语音播报;
(3)附加功能:时钟计时功能;
(4)软件方面:通过 Keil 软件用 C 语言进行编译调试; 本计算器系统具备设计简洁,附加功能丰富,实用性强,注重体验,节约成本,
操作和维护方便,输入方式多元化等特点。
毕业论文关键词:计算器;单片机;语音识别;语音播报;计时;可切换双模式输入
Abstract As everyone knows,a number of complex calculations is the brain of incompetence,and prone to errors,so the calculator appeared。Calculator as a convenient fast computing tool,solved this problem for the people。But, to the design of the calculator,don’t limit that only meet people’s simple and traditional computing functions,and should enrich their experience standing in the user’s point of view,making the use of calculators more intelligent。
This thesis is design of voice and time calculator of based on 51 single chip microcomputer。Highlight is timing functions,and innovation is the breakthrough of single manual input mode,adding the function of voice input,enriching the persity of input methods。The main content of this design can be summarized as:
(1)STC89C52 single chip microcomputer as the core component of the device,connect and control liquid-crystal display,voice chip,timer chip and some external expansion circuit devices;
(2)Input mode:adopt the swappable dual mode input,namely,the keyboard input of 16 keys of 4*4 and input of speech recognition;
(3)Output mode:include LCD liquid-crystal display and voice broadcast in real-time;
(4)Additional function:clock timer;
(5)Software aspect:use C language to program through Keil software;
This calculator system has the simple design,rich additional function,strong practicability,paying attention to experience,saving cost,convenient operation and maintenance,input mode persification,etc。
Keywords: calculator;SCM;voice recognition;voice broadcast;keep time;swappable dual mode input
目录
第一章 绪论 1
1。1 课题的背景和意义 1
1。2。1 国外研究现状及问题 2
1。2。2 国内研究现状及问题 2
1。3 本设计的研究内容及任务 3
1。3。1 主要研究内容 3
1。3。2 主要任务完成 3
第二章 计算器系统总体方案设计 5