基于CPLD的数字体温计的设计和实现  

Design and Implementation of Digital Thermometer Based on CPLD

作　　者：赵俊毅[1] 刘延武[1] 吕鹏[1] 

机构地区：[1]解放军总医院医学工程中心,北京100853

出　　处：《医疗卫生装备》2010年第7期27-28,共2页Chinese Medical Equipment Journal

摘　　要：目的:设计与研制一种基于单片机控制的数字体温计。方法:控制器使用XC2C256-7VQ100CES的CPLD芯片,测温传感器使用NTC热敏电阻,用LCD以串口传送数据,实现温度显示。结果:该体温计的测温范围为35～41℃,经实验证明测温精度可达0.2℃。结论:与传统的体温计相比,该数字体温计具有读数方便、测温范围广、测温准确等优点。Objective To introduce a digital thermometer based on the complex programmable logic device（CPLD）.Methods The XC2C256-7VQ100CES controller was selected as the core controller,the NTC resistor as the temperature sensors,and the LCD digital serial transmission as the data transmission style.Results The temperature measurement range was 35-41℃,and the precision was 0.2℃.Conclusion The digital thermometer presented here has the features of convenient reading,large temperature measurement scope and high accuracy when compared with the traditional thermometer.

关 键 词：数字体温计 复杂可编程逻辑器件 有限状态机 

分 类 号：TH776[机械工程—仪器科学与技术]