毕业论文——可语音播报的数字温度计的设计与实现.doc

学校代码： 学 号： 毕业论文（设计） BACHELOR DISSERTATION 论文题目：可语音播报的数字温度计的设计与实现 学位类别： 工学学士 年级专业（班级）： 09通信（2）班 作者姓名： 导师姓名： 完成时间： 2013年5 月23日 可语音播报的数字温度计的设计与实现 中 文 摘 要 温度采集技术在各个领域中有着广泛的应用，本文主要介绍了一种可语音播报的数字温度计的设计方法。系统以STC89C52为中央控制单元。利用传感器DHT11作为温、湿度探测器，采用WT588D语音模块实现语音播报功能，利用DS1302模块读取精确地时间，并通过LCD显示屏显示测量的温湿度、时间等。系统通过添加独立键盘来调整时间、设定温度报警限值和启动语音播报，若测量的温度超出系统设定的温度范围，则系统通过蜂鸣器报警。 最后，通过对系统各模块测试及整机调试，本系统实现了温湿度的测量与显示、语音播报及超温报警功能，时钟走时准确，温度测量值较标准值高1～2℃2～3％ 关键词：温度测量； STC89C52； 语音播报； 报警 Design of voice broadcast digital thermometer ABSTRACT Temperature detection technology has been widely applied in various fields, this paper describes the design of a voice broadcast digital thermometer.The system use a single-chip microcomputer STC89C52 as the central control unit and use a sensor DHT11 to detection the environmental temperature and humidity, and adopt WT588D voice module to achieve the voice broadcast function, read the precise time from the DS1302 module, and show the measured temperature and humidity, time through the LCD display.System by adding a separate keyboard to adjust the time, set the temperature alarm limits and start voice broadcast.If the measured temperature beyond the preset temperature range of the system, it will alarm through the buzzer. Finally, by commissioning the whole system, the system achieved a temperature and humidity measurement and display, voice broadcast and over-temperature alarm function, clock accurate, temperature measurements than the standard value of 1 to 2℃ higher, humidity measurements than the standard value of 2 to 3%.It has wide application, wide range, small size and low power consumption.System has simple structure, strong anti-interferen