CN-116105873-B - Calibration-free infrared temperature measurement method, device and equipment

CN116105873BCN 116105873 BCN116105873 BCN 116105873BCN-116105873-B

Abstract

The embodiment of the application provides a calibration-free infrared temperature measurement method, device and equipment, wherein the method, the device and the equipment are used for responding to the installation of a target multiple mirror on infrared temperature measurement equipment to acquire the transmittance of the target multiple mirror, determining the multiple mirror gray scale response relation of the infrared temperature measurement equipment when the target multiple mirror is installed according to the acquired transmittance and the standard gray scale response relation used when the infrared temperature measurement equipment is used for measuring the temperature, and outputting the temperature value of a measured target object according to the multiple mirror gray scale response relation. By adopting the embodiment provided by the application, when the infrared temperature measuring equipment is provided with the target multiple lens, the multiple lens response relation of the infrared temperature measuring equipment can be directly determined by combining the transmittance of the target multiple lens on the basis of the original standard gray scale response relation, the equipment and the target multiple lens are not required to be sent back to the original factory for calibration, the calibration cost of the infrared temperature measuring equipment is effectively saved, the accuracy of the temperature measuring result after the infrared temperature measuring equipment is provided with the target multiple lens is improved, and the temperature measuring experience of a user is facilitated to be improved.

Inventors

PEI GUOCHAO
CHEN SONGLIN

Assignees

杭州微影软件有限公司

Dates

Publication Date: 20260505
Application Date: 20230306

Claims (10)

1. The calibration-free infrared temperature measurement method is characterized in that a gray scale response relation comprises a temperature measurement multiplicative calibration coefficient and a temperature measurement additive calibration coefficient, and the method comprises the following steps: in response to installing a target magnifier on infrared temperature measurement equipment, acquiring the transmittance of the target magnifier; correcting a standard temperature measurement multiplicative calibration coefficient in a standard gray scale response relation used when the infrared temperature measurement equipment measures the temperature according to the transmittance to obtain a doubling mirror temperature measurement multiplicative calibration coefficient in a doubling mirror gray scale response relation; Determining a multiple lens temperature measurement additive calibration coefficient in the multiple lens gray scale response relation according to the transmittance, the standard temperature measurement multiplicative calibration coefficient, the standard temperature measurement additive calibration coefficient in the standard gray scale response relation and an expected intersection point, wherein the expected intersection point is an expected intersection point of the standard gray scale response relation and the multiple lens gray scale response relation in a temperature-gray scale response value space, and the gray scale response relation is a corresponding relation between a gray scale response value output by the infrared temperature measurement equipment and a temperature value output based on the gray scale response value; And determining the temperature value of the target object measured by the infrared temperature measuring equipment according to the gray scale response relation of the magnifier.
2. The method of claim 1, wherein determining the temperature value of the target object measured by the infrared temperature measurement device according to the multiple-lens gray-scale response relationship comprises: Acquiring a gray-scale response value obtained based on the conversion of infrared signals radiated by the target object when the infrared temperature measuring equipment is provided with the target magnifier; and determining the temperature value of the target object according to the gray scale response relation of the magnifier.
3. The calibration-free infrared temperature measurement method is characterized by comprising the following steps of: in response to installing a target magnifier on infrared temperature measurement equipment, acquiring the transmittance of the target magnifier; Determining a gray scale response relation of the infrared temperature measuring equipment at a calibrated environment temperature when the target magnifier is installed according to the transmittance and a standard gray scale response relation used when the infrared temperature measuring equipment measures the temperature, wherein the standard gray scale response relation is a response relation of the infrared temperature measuring equipment at the calibrated environment temperature when the target magnifier is not installed, and the gray scale response relation is a corresponding relation between a gray scale response value output by the infrared temperature measuring equipment and a temperature value output based on the gray scale response value; acquiring a current environment temperature and a first gray scale response value obtained by the infrared temperature measuring equipment for measuring a target object at the current environment temperature; Determining a third gray-scale response value obtained by measuring a calibration object by the infrared temperature measurement equipment at the current environment temperature according to the current environment temperature, the calibration environment temperature and a second gray-scale response value, wherein the second gray-scale response value is the gray-scale response value obtained by measuring the calibration object by the infrared temperature measurement equipment at the calibration environment temperature; Determining a fourth gray scale response value obtained by measuring the target object at the calibrated environment temperature by the infrared temperature measuring equipment according to the current environment temperature, the calibrated environment temperature, the first gray scale response value, the second gray scale response value and the third gray scale response value; and determining the temperature corresponding to the fourth gray scale response value as the temperature of the target object according to the gray scale response relation of the magnifier.
4. A method according to claim 1 or 3, wherein the transmittance is determined in advance before the target magnifier is shipped by: under the condition that the first calibration equipment is not provided with the target magnifier, acquiring standard gray scale response values when the first calibration equipment measures objects with different object temperatures; acquiring a gray scale response value of the magnifier when the first calibration equipment measures objects with different object temperatures under the condition that the first calibration equipment is provided with the target magnifier; Determining a first change rate of the standard gray scale response value along with the temperature of the object and a second change rate of the double-lens gray scale response value along with the temperature of the object; And marking the ratio of the second change rate to the first change rate as the transmittance of the target magnifier.
5. The method of claim 4, wherein the obtaining standard gray scale response values for the first calibration device when measuring objects at different object temperatures comprises: Acquiring a first standard gray scale response value when the first calibration equipment measures a first black body and a second standard gray scale response value when the first calibration equipment measures a second black body, wherein the object temperatures of the first black body and the second black body are different; The obtaining the response value of the gray scale of the magnifier when the first calibration device measures the objects with different object temperatures comprises the following steps: Acquiring a first multiple-lens gray-scale response value when the first calibration equipment measures a first black body and a second multiple-lens gray-scale response value when the first calibration equipment measures a second black body; The determining the first rate of change of the standard gray scale response value with the object temperature and the second rate of change of the multiple lens gray scale response value with the object temperature comprises the following steps: determining a difference value between the first standard gray scale response value and the second standard gray scale response value as a first change rate; and determining a difference value between the first multiple-lens gray-scale response value and the second multiple-lens gray-scale response value as a second change rate.
6. The utility model provides an infrared temperature measuring device exempts from to mark, its characterized in that, gray scale response includes temperature measurement multiplicative calibration coefficient, temperature measurement additivity calibration coefficient, the device includes: The acquisition module is used for responding to the installation of the target magnifier on the infrared temperature measurement equipment and acquiring the transmittance of the target magnifier; The relation determining module is used for correcting the standard temperature measurement multiplicative calibration coefficient in the standard gray scale response relation used when the infrared temperature measuring equipment measures the temperature according to the transmittance to obtain the multiplicative calibration coefficient of the doubly-mirrored temperature measurement in the doubly-mirrored gray scale response relation; determining a multiple lens temperature measurement additive calibration coefficient in the multiple lens gray scale response relation according to the transmittance, the standard temperature measurement multiplicative calibration coefficient, the standard temperature measurement additive calibration coefficient in the standard gray scale response relation and an expected intersection point, wherein the expected intersection point is an expected intersection point of the standard gray scale response relation and the multiple lens gray scale response relation in a temperature-gray scale response value space, and the gray scale response relation is a corresponding relation between a gray scale response value output by the infrared temperature measurement equipment and a temperature value output based on the gray scale response value; And the temperature determining module is used for determining the temperature value of the target object measured by the infrared temperature measuring equipment according to the gray scale response relation of the magnifier.
7. A calibration-free infrared temperature measurement device, the device comprising: The acquisition module is used for responding to the installation of the target magnifier on the infrared temperature measurement equipment and acquiring the transmittance of the target magnifier; The relation determining module is used for determining a gray-scale response relation of the infrared temperature measuring equipment at the calibrated environment temperature when the target multiple lens is installed according to the transmittance and a standard gray-scale response relation used when the infrared temperature measuring equipment measures the temperature, wherein the standard gray-scale response relation is a response relation of the infrared temperature measuring equipment at the calibrated environment temperature when the target multiple lens is not installed, and the gray-scale response relation is a corresponding relation between a gray-scale response value output by the infrared temperature measuring equipment and a temperature value output based on the gray-scale response value; The temperature determining module is used for determining a temperature value of a target object measured by the infrared temperature measuring equipment according to the gray scale response relation of the magnifier; The relationship determining module is further configured to obtain a first gray-scale response value obtained by measuring a target object by the infrared temperature measuring device at the current environment temperature, determine a third gray-scale response value obtained by measuring a calibration object by the infrared temperature measuring device at the current environment temperature according to the current environment temperature, the calibration environment temperature and a second gray-scale response value, wherein the second gray-scale response value is a gray-scale response value obtained by measuring the calibration object by the infrared temperature measuring device at the calibration environment temperature, determine a fourth gray-scale response value obtained by measuring the target object by the infrared temperature measuring device at the calibration environment temperature according to the current environment temperature, the calibration environment temperature, the first gray-scale response value, the second gray-scale response value and the third gray-scale response value, and determine a temperature corresponding to the fourth gray-scale response value as the temperature of the target object according to the multiple-lens gray-scale response relationship.
8. The apparatus according to claim 6 or 7, wherein the temperature determining module is specifically configured to obtain a gray-scale response value obtained based on conversion of an infrared signal radiated by the target object when the infrared temperature measuring device installs the target magnifier; determining a temperature value of the target object according to the gray scale response relation of the magnifier; The relationship determination module is further configured to, Under the condition that the first calibration equipment is not provided with the target magnifier, acquiring standard gray scale response values when the first calibration equipment measures objects with different object temperatures; acquiring a gray scale response value of the magnifier when the first calibration equipment measures objects with different object temperatures under the condition that the first calibration equipment is provided with the target magnifier; Determining a first change rate of the standard gray scale response value along with the temperature of the object and a second change rate of the double-lens gray scale response value along with the temperature of the object; marking the ratio of the second change rate to the first change rate as the transmittance of the target magnifier; the relation determining module is specifically configured to obtain a first standard gray scale response value when the first calibration device measures a first black body and a second standard gray scale response value when the first calibration device measures a second black body, where the object temperatures of the first black body and the second black body are different; Acquiring a first multiple-lens gray-scale response value when the first calibration equipment measures a first black body and a second multiple-lens gray-scale response value when the first calibration equipment measures a second black body; determining a difference value between the first standard gray scale response value and the second standard gray scale response value as a first change rate; and determining a difference value between the first multiple-lens gray-scale response value and the second multiple-lens gray-scale response value as a second change rate.
9. An electronic device, comprising: a memory for storing a computer program; a processor for implementing the method of any of claims 1-5 when executing a program stored on a memory.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the method of any of claims 1-5.

Description

Calibration-free infrared temperature measurement method, device and equipment Technical Field The application relates to the technical field of infrared temperature measurement, in particular to a calibration-free infrared temperature measurement method, device and equipment. Background The infrared signal that infrared temperature measuring equipment can receive is converted into gray response value, and gray response value depends on the intensity of infrared signal, because the intensity of infrared signal that the object sent again depends on the temperature of object self, therefore there is certain relation in gray response value and the temperature of object in theory, this is called gray response relation here. The gray-scale response relation can be obtained through calibration in advance and stored in the infrared temperature measuring equipment, and the infrared temperature measuring equipment can determine the temperature of the object according to the gray-scale response value and the gray-scale response relation obtained through measurement so as to realize temperature measurement. In the technical field of infrared temperature measurement, there is a need to install different power mirrors on infrared temperature measurement equipment to expand the application range of the infrared temperature measurement equipment. However, the actual gray-scale response relation of the infrared temperature measurement equipment is changed due to the mounted magnifier, and if the infrared temperature measurement equipment still uses the gray-scale response relation calibrated in advance for temperature measurement, the measured temperature is inaccurate. In the prior art, a user sends back the infrared temperature measuring equipment and the mounted magnifier to an infrared temperature measuring equipment manufacturer, the manufacturer calibrates and adjusts the gray scale response relation of the infrared temperature measuring equipment according to the parameters of the mounted magnifier by using professional calibration equipment, and then sends back the adjusted infrared temperature measuring equipment and the mounted magnifier to the user so as to calibrate the infrared temperature measuring equipment with the mounted magnifier. Therefore, the user experience of the user using the infrared temperature measuring equipment is affected while the temperature measuring efficiency of the user using the infrared temperature measuring equipment is affected. Disclosure of Invention The embodiment of the application aims to provide a calibration-free infrared temperature measurement method, device and equipment, so that accurate temperature measurement results are automatically output under the condition that no manufacturer performs calibration adjustment on response signals of infrared temperature measurement equipment, and the temperature measurement efficiency of a user and the use experience of the user are improved. The specific technical scheme is as follows: in a first aspect, an embodiment of the present application provides a calibration-free infrared temperature measurement method, where the method includes: in response to installing a target magnifier on infrared temperature measurement equipment, acquiring the transmittance of the target magnifier; Determining a gray scale response relation of the infrared temperature measurement equipment when the target multiple lens is installed according to the transmittance and a standard gray scale response relation used when the infrared temperature measurement equipment measures temperature, wherein the gray scale response relation is a corresponding relation between a gray scale response value output by the infrared temperature measurement equipment and a temperature value output based on the gray scale response value; And determining the temperature value of the target object measured by the infrared temperature measuring equipment according to the gray scale response relation of the magnifier. With reference to the first aspect, in a second possible embodiment, the determining, according to the gray-scale response relationship of the magnifier, a temperature value of the target object measured by the infrared temperature measurement device includes: Acquiring a gray-scale response value obtained based on the conversion of infrared signals radiated by the target object when the infrared temperature measuring equipment is provided with the target magnifier; and determining the temperature value of the target object according to the gray scale response relation of the magnifier. With reference to the first aspect, in a third possible embodiment, the transmittance is determined in advance before the target magnifier leaves the factory by: under the condition that the first calibration equipment is not provided with the target magnifier, acquiring standard gray scale response values when the first calibration equipment measures objects with different object te