High-precision wide-area intelligent infrared body temperature screening method and system

Abstract

The invention discloses a high-precision wide-area intelligent infrared body temperature screening method and system, and the method comprises the steps: 1, carrying out visible light feature recognition and extraction on a to-be-detected target, and obtaining visible light view field space-time position information of the to-be-detected target; 2, converting the visible light view field space-time position information into infrared light view field space-time position information according to a space-time position mapping algorithm; 3, performing directional infrared radiation feature acquisition on the to-be-detected target according to the infrared light view field space-time position information, and converting infrared radiation feature information into a corresponding gray value; 4,obtaining a temperature absolute value of the to-be-detected target according to gray value information by using an adaptive temperature mapping calibration algorithm; and 5, performing temperature compensation on the absolute temperature value of the to-be-detected target by using the intelligent temperature self-calibration compensation algorithm to obtain a final temperature value of the to-be-detected target. According to the invention, high-precision body temperature detection of infrared body temperature screening in an outdoor complex environment can be realized, and the precision can reach + / -0.1 DEG C.

Description

technical field [0001] The invention relates to the technical field of infrared sensing and screening, in particular to a high-precision wide-area intelligent infrared body temperature screening method and system thereof. Background technique [0002] Due to its fast and non-contact advantages, the body temperature screening technology based on infrared radiation perception has been widely used in crowded public places such as airports, railway stations, subways, shopping malls, and schools. However, since the working process of infrared temperature measurement is to collect the infrared radiation of the measured object at a certain distance, the emissivity of the measured object itself, the measurement distance, the atmospheric transmittance, the radiation of the infrared temperature measurement equipment itself, etc. will all be affected, so for a long time It is difficult to improve the temperature measurement accuracy, especially in the cold outdoor environment in the no...

AI Technical Summary

Problems solved by technology

However, since the working process of infrared temperature measurement is to collect the infrared radiation of the measured object at a certain distance, the emissivity of the measured object itself, the measurement distance, the atmospheric transmittance, the radiation of the infrared temperature measurement equipment itself, etc. will all be affected, so for a long time It is difficult to improve the temperature measurement accuracy, especially in the cold outdoor environment in the northern winter, there are large errors in long-distance temperature measurement

Images