Infrared body temperature monitoring automatic calibration method and system

Abstract

The invention relates to an infrared body temperature monitoring automatic calibration method and system. The system is composed of infrared body temperature monitoring equipment, a calibration data processing center, ear canal temperature measuring equipment, environmental parameter monitoring equipment, an environmental parameter monitoring system and an infrared body temperature monitoring system. In the calibration data processing center, the ear canal temperature T0 is used as the reference temperature, environmental parameters are used as interference factors, the body surface temperature Ty is used as data information to be calibrated, then, data analysis and processing are conducted, and a calibration parameter curve of the environmental parameters, the body surface temperature and the body temperature is established. The infrared body temperature monitoring automatic calibration method is relatively simple, feasible, economical and effective, and the problems of report mistakenly, report by mistake, and report missing in an infrared body temperature monitoring system which is currently used in frontier ports and other regions are solved.

Description

technical field [0001] The automatic calibration technology involving the infrared body temperature monitoring system is especially suitable for the real-time and accurate calibration of the infrared body temperature monitoring equipment of the entry-exit travel inspection channel in the border port area. Background technique [0002] Objects with a temperature above absolute zero (-273°C) will radiate infrared rays to the outside, and the higher the temperature of the object, the stronger the radiation. Infrared detection equipment converts signals such as the wavelength and intensity of infrared radiation into electrical signals, and the electrical signals are converted into temperature values ​​of the measured target after amplifiers and signal processing. The imaging device simulates the electrical signals to scan the spatial distribution of the surface temperature of the object. After it is transmitted to the display screen, the thermal image corresponding to the therma...

AI Technical Summary

Problems solved by technology

At present, the setting and debugging of calibration parameters in all temperature measurement systems in use mainly rely on the experience of the maintenance personnel of temperature measurement equipment to set, so it is difficult to guarantee the real-time, scientific and effectiveness of the parameter setting of the thermometer

(2) When the temperature and other environmental parameters change greatly, the human body surface temperature will change with environmental changes and other factors, and the gap between the body surface temperature and body temperature is constantly changing, but the parameter settings of the existing infrared temperature measurement system It cannot change in time with changes in environmental parameters, so it often causes false reports and missed reports, and it is difficult to meet the requirements of rapid monitoring of body temperature and rapid customs clearance at ports

(3) Since the current temperature measurement system is distributed at various entry and exit ports across the country, and the longitude, latitude, and climate conditions of each port are different, the calibration parameter settings of the current infrared temperature measurement system do not fully take these factors into account

Therefore, the existing infrared body temperature monitoring system often has false positives, false alarms, and false alarms due to changes in the external environment, which seriously affects the speed of customs clearance and the efficiency of infectious disease monitoring.

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