摘要:工业之后,生产力得到提高,使得工业产品走进千家万户。产品的个性化成为不可忽视的问题。时钟这一生活必备用品,也需要适应不同的人群。课题研究的目的是使用单片机设计出更加适合盲人用的电子时钟,服务于盲人群体。针对盲人不能视物这一特点,加入了语音播报和按键报时的功能。整个系统围绕着STC89C52单片机进行,数据显示模块选择的是LCD液晶显示,温度采集模块则挑选了经济实用的DS18B20温度传感器,选用DS1302时钟芯片,设置四个按键分别进行模式、功能的选择以及时间的调节。此盲人用时钟具有液晶显示与语音播报的功能,此外它的电路简洁、功能多样、成本低廉,具有良好的市场前景。
关键字:单片机,盲人使用,按键报时
Abstract: After the industrial revolution, productivity was increased, and industrial pr oducts were introduced into thousands of households. In order to Better serve humanit y, the product personalization Becomes a proBlem that cannot Be ignored. Theclock is astaple of life, and it neeDS to Be adapted to different people. The purposeof the re search is to design a more suitaBle electronic clock for Blind people using single-chip microcomputer.For Bilind people, it is not a feature that can Be regarded as a visual oBject. The whole system around the STC89C52 MCU, the data display module choic
e is LCD liquid crystal display, temperature acquisition module DS18B20 temperature sensor is picked out the economic and practical, choose DS1302 clock chip, set up fo ur buttons respectively through the choice of mode, function and regulation of time. T his Blind person USES the clock to have the function of liquid crystal display and vo ice Broadcast, Besides its circuit is concise, function is perse, cost is low, have Bro ad market prospect.
Keywords: chip microcomputer,the Blind use,keystroke timeout
目录
1 前言 4
1.1 课题研究的背景 4
1.2 课题的研究目的与意义 4
1.3 课题解决的主要内容 4
2 系统的方案设计 5
3 系统硬件的设计 5
3.1 STC89C52单片机特点 5
3.2 最小系统设计 6
3.3 时钟芯片DS1302接口设计与性能分析 7
3.4 温度芯片DS18B20接口设计与性能分析 9
3.5 LCD显示模块 10
3.6 按键模块设计 13
3.7 发声模块的设计 13
STC89C52单片机盲人用时钟的设计+电路图+程序:http://www.chuibin.com/zidonghua/lunwen_205213.html