Body temperature measurement method taking human body as virtual black body, device and storage medium

A body temperature and human body technology, applied in the field of computer vision, can solve problems such as impossibility, complex mathematical relations, and inaccurate temperature calibration, and achieve accurate measurement results

Pending Publication Date: 2020-10-27
深兰自动驾驶研究院(山东)有限公司
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Problems solved by technology

[0013] In order to solve the problems that the infrared body temperature detection cannot be carried out outdoors and at a long distance, the temperature calibration is not accurate with the change of the environment, and the complex mathematical relationship between the armpit temperature and the forehead temperature is required, the present invention proposes a method based on using the human body as a virtual black body Method, device and storage medium for measuring body temperature

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  • Body temperature measurement method taking human body as virtual black body, device and storage medium
  • Body temperature measurement method taking human body as virtual black body, device and storage medium
  • Body temperature measurement method taking human body as virtual black body, device and storage medium

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Embodiment

[0045]Infrared thermal imaging temperature measurement uses a sensor that can measure the intensity of infrared radiation to convert the received thermal radiation energy in the infrared band into an electrical signal. After amplification, integer, and analog-to-digital conversion, it becomes a digital signal, which is displayed on the display through the image. Come out; the voltage value of the sensor is positively linearly correlated with the temperature value, and can be converted into a temperature value through simple calculation. The temperature read out in the image displayed by the infrared thermal imaging system is the radiation temperature on the surface of the object, not the real temperature inside the object. The infrared thermal imager currently used needs to calibrate the thermal imager with a high-precision blackbody. The calibration process is to find out the corresponding relationship between the blackbody temperature and the output voltage of the photoelectr...

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Abstract

The invention discloses a body temperature measurement method taking a human body as a virtual black body, a device and a storage medium. The method comprises the following steps of: calculating a sample average value of n effective forehead temperatures; calibrating sensor parameters and measuring a relative temperature; acquiring (n+1)-th sensor numerical values and calculating an actual body temperature; judging whether the sensor numerical values are within an effective range or not; and including the effective values in the effective range in a sample, and removing the earliest sample todynamically update a sample library. With the method provided by the invention adopted, the problem of outdoor and long-distance infrared body temperature detection can be effectively solved; the forehead of a person is used as a virtual black body, the armpit temperature is taken as a reference, and the body temperature transmitted by the forehead can be measured as long as the body temperature truly reflects the relative change of the armpit temperature; the complex mathematical relationship between the armpit temperature and the forehead temperature is avoided; and meanwhile, the samples for measurement and calculation are dynamic and stored in different time periods, and the temperature can be continuously calibrated again along with the change of the environment, so that the measurement is more accurate.

Description

technical field [0001] The invention relates to the technical field of computer vision, and relates to a body temperature measurement method, device and storage medium based on using a human body as a virtual black body. Background technique [0002] Infrared thermal imaging technology is widely used to measure the temperature of solid surfaces. It has the advantages of non-contact measurement, fast response, wide temperature measurement range, high sensitivity and high spatial resolution. Therefore, it has been used in safety prediction, medical and health, aerospace, nondestructive testing, Quality monitoring and other fields have been widely used. [0003] The outbreak of the new crown epidemic, and the most common characteristic of the infected population is fever, so it is particularly important to measure and screen the body temperature of people in different places. Infrared thermal imaging technology is used by relevant units as an important tool for screening patie...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01J5/52G01K13/00G06N20/00
CPCG01J5/0025G06N20/00G01J5/53
Inventor 陈海波
Owner 深兰自动驾驶研究院(山东)有限公司
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