The Development Of Wireless Infrared Temperature Measurement System

At present, the public body temperature measuring instrument is still predominantly mercury thermometer. There are many shortcomings for the way of measurement, such as the low accuracy, the long measurement time, the insecurity and so on. With the rapid development of social economy and technology, the continuous improvement of living standard, the health and safety of live are required sharply by people. No matter where in the family, the hospital, the kindergarten, the school, or the public place where the flu and the infectious disease attacked highly at the special period,there are required a temperature measuring device which are fast, efficient, accurate, low cost,small volume and used conveniently. And it can also measure the temperature of body at actual time and transmit the information to the platform and the network terminal for inquire,analyze and count.The aim of this paper is the development for the wireless infrared temperature measurement system, which formally need to develop a set as to meet the requirements of the device and its implementation algorithm and software system. In this paper, it develop on the hardware and the software system of the infrared temperature measurement, which are adopted the MLX90614 infrared sensor to construct the preciseness medical infrared temperature measurement module and combined with a highly integrated HC-SR04 by the ultrasonic measured distance module,composing into the system information collection device. STM32F103VET6 is the single-chip microcomputer to handle the collected temperature and the distance of signal and communicate with PC with the help of the USB interface. USR-WIFI232-G module of wireless communication with a PC is also studied and implemented in this article. On the upper machine developed software system, the temperature compensation and a high precision fitting method is realized. It provides the ±0.1 ℃ increase or decrease amplitude of manually temperature correction settings. The temperature monitoring software system is powerful and the interactive interface is friendly. It can dynamically monitor temperature data and draw the changing curve. Cooperating with the related applications software, it can submit the tested object information and the real-time temperature data to the remote WEB database. Then, set them to the mobile client.The wireless infrared temperature measurement system researched in this paper has the characteristics of efficiency, precision, low cost, small volume and convenient using,merit. Especially, it was suitable for children and students of the high temperature measurement, and the statistical analysis of relevant data and the information setting.