摘要
红外体温计因安全卫生、测量高效而备受青睐,发展迅速。但目前市场上的红外体温计存在测量误差大、成本高等缺点,应用受到限制。鉴于此,首先分析了影响红外体温计测量精度的各种因素,并给出具体影响程度的计算结果,然后利用STM32F407单片机作为控制核心,通过MLX90615红外传感器、DS18B20集成温度传感器、HC-SR04超声传感器等获取信息,设计了一种面向医院、家庭等的廉价、可靠的便携式红外体温计,并给出温度补偿方法,最后通过实验测试验证了系统设计的可靠性。测试结果表明,最大综合误差不超过0.15℃,具有一定的实用价值与参考价值。
Infrared thermometers are popular because of their safety,hygiene,and high efficiency.However,commercial infrared thermometers have large measurement errors and high cost,so their application is limited.Considering this,this paper first analyzes various factors that affect the measurement accuracy of an infrared thermometer and gives the calculation results of the specific influence degree.Then,using STM32F407 MCU as the control core,an MLX90615 infrared sensor,DS18B20 integrated temperature sensor,and HC-SR04 ultrasonic sensor to obtain information,a cheap and reliable portable infrared thermometer for hospitals and families is designed,and a method of temperature compensation is provided.Finally,the reliability of the system design was verified by testing.The test results show that the maximum comprehensive error is less than 0.15℃,which has definite practical value and reference value.
作者
杨清志
王玉香
徐宏
YANG Qingzhi;WANG Yuxiang;XU Hong(Department of Intelligent Engineering,Bozhou Vocational and Technical College,Bozhou 236800,China)
出处
《红外技术》
CSCD
北大核心
2021年第6期597-606,共10页
Infrared Technology
基金
安徽省教育厅质量工程项目(2020kfkc335)
亳州职业技术学院重点科研项目(BKY2004)。
