摘要
提出了一种基于近场通信(NFC)技术的低成本无源体温测量的解决方案。NFC天线负责从智能手机中感知能量和传输数据。温度传感器的信号由微控制器获取和计算,结果通过NFC发送到智能手机并显示在Android应用程序(APP)上。为了适应NFC的低能量感应(在3 V时最大输出为5 mA),设计了一种基于时间控制的能量积累方法以满足在信号采集时更高的功耗需求。完成了体温测量样机以验证这种测量系统可靠性。实验结果表明,测量误差小于±0.1℃。
A low-cost and passive body temperature measurement based on Near Field Communication(NFC)technology is present.NFC antenna is responsible for inducing energy from the smartphone to power detection system and transmitting data。The signal of medical sensor is acquired and calculated by micro controller,the result is sent to the smartphone by NFC and presented on APP.In order to adapt to the low energy induction of NFC(≤5 mA@3 V),an energy accumulation method based on time-controlled is designed to achieve the power consumption(20 mA@3 V)at time of signal acquisition.A body temperature measurement prototype is fabricated to verify the reliability of this measurement system.Experimental results show that the measurement error is less than±0.1℃.
作者
王纪彬
王文廉
WANG Jibin;WANG Wenlian(Key Laboratory of Instrumentation Science&Dynamic Measurement,Ministry of Education,North University of China,Taiyuan 030051,China;National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China)
出处
《传感技术学报》
CAS
CSCD
北大核心
2019年第8期1271-1275,共5页
Chinese Journal of Sensors and Actuators
基金
传感激光准δ脉冲动态校准系统研究项目基金项目(KF201806)
