A design scheme of non-contact wireless human-body temperature monitoring system based on MLX90614 and ZigBee was presented. MLX90614 infrared thermometer measurement module collects the forehead temperature data DS18B20 digital temperature sensor measures environmental temperature. Temperature data was obtained through a large number of test The relationship between the forehead temperature and the human-body temperature was found by fitting the temperature data ,which helps to correct the difference between forehead temperature and body-temperature. The body-temperature data was sent to computer terminals by ZigBee wireless communication module. It has been put into practice, practice shows that the system measures the body temperature rapidly and accurately in 3 seconds with an accuracy of ± 0.2℃, percentage of investigation of people whose body-temperature was abnormal in the crowd reaches up to 92% .The system was applicable for places of large flow of people particularly for primary and secondary schools.%提出一种基于MLX90614和ZigBee技术的非接触式体温实时测量无线监控系统的设计方案.MLX90614红外测温模块测量得到人的额头温度,DS18B20数字温度传感器测量环境温度,在经过大量测试得到的温度数据的基础上,通过拟合得到环境温度、人的额头温度和人体体温之间的关系,从而修正人的额头温度与人体体温的温差.再利用ZigBee无线通信模块将人体体温数据传送至计算机终端.实践表明,该系统能在3s内快速、准确地测量出人体体温,精确度达±0.2℃,对于人群中温度异常者的排查率高达92%,适用于中小学校等人流量大的场合.
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