精品毕业论文--51单片机DS18B20电子温度计设计.docx

目录contens
摘要--------------------------------------------------------------------------------------------------------------------04
系统设计分析-------------------------------------------------------------------------------------------------------05
方案论证--------------------------------------------------------------------------------------------------------------12
系统硬件设计-------------------------------------------------------------------------------------------------------12-
系统软件设计--------------------------------------------------------------------------------------------------------13
应用示例---------------------------------------------------------------------------------------------------------------21
总结体会---------------------------------------------------------------------------------------------------------------21
致谢----------------------------------------------------------------------------------------------------------------------22
参考文献----------------------------------------------------------------------------------------------------------------23
附录1:源程序-------------------------------------------------------------------------------------------------------24
摘要
温度计再很多场合很多,现在看来的很多老式温度计正在从生活中淡出。电子式温度计因为其方便的度数和较为稳定的物理特性,测量范围广抗击打能力等受到人们的青睐。本次试验设计采用了市场上极为普遍的AT89S51系列芯片做主机,采用共阳极四位八段数码管显示,采用美国dallas公司生产的DS18B20作为温度采集的传感器,节省去了温度校正的环节。而18B20也增加了温度的可靠性。此外试验产品采用五伏直流电源供电,电源简单。可以作为温室大棚,浴室,图书馆等场合的温度检测。还可以作为其他产品的部件,比如电子时钟上的附带电子温度计,温度控制系统的温度采集与显示,用处十分广泛,并且价格低廉。
关键词:51单片机 DS18B20 电子温度计
Abstract
Thermometer and then many many occasions, it seems that a lot of old-fashioned thermometer is fade from life. Electronic thermometer because of its convenience and relatively stable degree of physical properties, measurement range and strong Stability by people of all ages. The trial was designed with an extremely popular on the market do a host chip AT89S51 series, eight out using mon anode LED display, using the . as dallas produced DS18B20 temperature sensor acquisition,