Patent ID: 11910124
Assignee: MESH CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A temperature measuring system comprising:
a thermal camera unit for measuring a temperature of a subject to be measured, the thermal camera unit being equipped with a thermal camera; and
an externally mounted temperature calibration device that is located outside the thermal camera unit and includes a temperature measurement substrate which is photographed with the subject by a thermal camera when photographing the subject;
wherein the externally mounted temperature calibration device is fixed and mounted on one side of the thermal camera unit;
wherein the temperature measurement substrate is formed by coating copper plates on both sides of a printed circuit board substrate, and both sides of the printed circuit board substrate are connected using copper contacts;
wherein
a temperature sensor is mounted on an opposite side of a side facing the thermal camera unit on the temperature measurement substrate,
an operation processing unit detects a temperature of the temperature measurement substrate measured by the thermal camera from a thermal image of the temperature measurement substrate photographed with the subject when photographing the subject, and
the operation processing unit calibrates the thermal image, using a difference between the temperature of the temperature measurement substrate measured by the thermal camera and a temperature of the temperature measurement substrate measured by the temperature sensor; and

wherein when calibrating the thermal image including the subject to be measured photographed with the thermal camera, in the thermal image including the subject to be measured photographed by the thermal camera, the operation processing unit subtracts the difference in the temperature of the temperature measurement substrate detected by the thermal camera and the temperature of the temperature measurement substrate detected by the temperature sensor from the temperature of the subject to be measured.