A calibration-free infrared temperature measurement method, device and equipment

Abstract

Embodiments of the present application provide a kind of infrared temperature measurement method, device and equipment without calibration, wherein, in response to installing target magnifying glass on infrared temperature measurement equipment, the transmissivity of target magnifying glass is acquired;According to the transmissivity obtained, the standard gray scale response relationship used when infrared temperature measurement equipment temperature measurement is determined, the magnifying glass gray scale response relationship of infrared temperature measurement equipment when installing target magnifying glass, according to the magnifying glass gray scale response relationship, the temperature value of the measured target object is output.The embodiments provided in the present application can be selected, when infrared temperature measurement equipment installs target magnifying glass, on the basis of original standard gray scale response relationship, the transmissivity of target magnifying glass is combined, and the magnifying glass response relationship of infrared temperature measurement equipment is directly determined, without needing to return to factory for calibration with equipment and target magnifying glass, effectively save the calibration cost of infrared temperature measurement equipment, improve the temperature measurement result accuracy of infrared temperature measurement equipment after installing target magnifying glass, help to improve the temperature measurement experience of user.

Description

Technical Field

[0001] This application relates to the field of infrared temperature measurement technology, and in particular to a calibration-free infrared temperature measurement method, apparatus and equipment. Background Technology

[0002] Infrared thermometers convert infrared signals into grayscale response values, which depend on the intensity of the infrared signal. Since the intensity of the infrared signal emitted by an object depends on its temperature, theoretically, there is a certain relationship between the grayscale response value and the object's temperature; this is referred to as the grayscale response relationship. The grayscale response relationship can be pre-calibrated and stored within the infrared thermometer. The thermometer can then determine the object's temperature based on the measured grayscale response values ​​and the grayscale response relationship, thus achieving temperature measurement.

[0003] In the field of infrared thermometry, there is a need to install different magnification lenses on infrared thermometry equipment to expand its application range. However, since the installed magnification lenses will change the actual grayscale response relationship of the infrared thermometry equipment, if the infrared thermometry equipment still uses the pre-calibrated grayscale response relationship for temperature measurement, the measured temperature will not be accurate enough.

[0004] In existing technical solutions, users typically send the infrared thermometer and the installed magnifying lens back to the manufacturer. The manufacturer then uses specialized calibration equipment to calibrate and adjust the grayscale response of the infrared thermometer based on the parameters of the installed magnifying lens. The adjusted infrared thermometer and the installed magnifying lens are then sent back to the user for calibration. This process affects both the temperature measurement efficiency and the user experience when using the infrared thermometer. Summary of the Invention

[0005] The purpose of this application is to provide a calibration-free infrared temperature measurement method, device, and equipment, so as to automatically output accurate temperature measurement results without the need for the manufacturer to calibrate and adjust the response signal of the infrared temperature measurement equipment, thereby improving the user's temperature measurement efficiency and user experience.

[0006] The specific technical solution is as follows:

[0007] In a first aspect, embodiments of this application provide a calibration-free infrared temperature measurement method, wherein the method includes:

[0008] In response to installing a target magnifying glass on an infrared thermometer, the transmittance of the target magnifying glass is obtained;

[0009] Based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature, the magnification grayscale response relationship of the infrared temperature measuring device when the target magnification lens is installed is determined; wherein, the grayscale response relationship is the correspondence between the grayscale response value output by the infrared temperature measuring device and the temperature value output based on the grayscale response value;

[0010] Based on the grayscale response relationship of the magnification lens, the temperature value of the target object measured by the infrared thermometer is determined.

[0011] In conjunction with the first aspect, in a second possible embodiment, determining the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens includes:

[0012] When the infrared thermometer is installed with the target magnifying lens, the grayscale response value is obtained based on the conversion of the infrared signal radiated by the target object.

[0013] The temperature value of the target object is determined based on the grayscale response relationship of the magnification lens.

[0014] In conjunction with the first aspect, in a third possible embodiment, the transmittance is determined in advance before the target scope leaves the factory by the following method:

[0015] Without the target magnifying glass installed on the first calibration device, the standard grayscale response values ​​of the first calibration device when measuring the temperature of different objects are obtained;

[0016] When the target magnifying lens is installed on the first calibration device, obtain the magnifying lens grayscale response values ​​when the first calibration device measures the temperature of different objects;

[0017] Determine the first rate of change of the standard grayscale response value with object temperature and the second rate of change of the magnification lens grayscale response value with object temperature;

[0018] The ratio of the second rate of change to the first rate of change is labeled as the transmittance of the target microscope.

[0019] In conjunction with the third possible embodiment of the first aspect, in the fourth possible embodiment, obtaining the standard grayscale response value when the first calibration device measures objects with different object temperatures includes:

[0020] The first standard grayscale response value of the first calibration device when measuring the first blackbody and the second standard grayscale response value when measuring the second blackbody are obtained, wherein the object temperatures of the first blackbody and the second blackbody are different.

[0021] The step of obtaining the magnification mirror grayscale response values ​​when the first calibration device measures the temperature of different objects includes:

[0022] Acquire the grayscale response value of the first lens when the first calibration device measures the first blackbody and the grayscale response value of the second lens when measuring the second blackbody;

[0023] Determining the first rate of change of the standard grayscale response value with respect to object temperature and the second rate of change of the magnifying glass grayscale response value with respect to object temperature includes:

[0024] The difference between the first standard grayscale response value and the second standard grayscale response value is determined as the first rate of change;

[0025] The difference between the grayscale response value of the first magnification lens and the grayscale response value of the second magnification lens is determined as the second rate of change.

[0026] In conjunction with the first aspect, in the fifth possible embodiment, the grayscale response relationship includes a temperature measurement multiplicative calibration coefficient and a temperature measurement additive calibration coefficient;

[0027] The step of determining the magnification grayscale response relationship of the infrared temperature measuring device when the target magnification lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device, includes:

[0028] Based on the transmittance, the standard thermometric multiplicative calibration coefficient in the standard grayscale response relationship is corrected to obtain the thermometric multiplicative calibration coefficient in the magnification lens grayscale response relationship.

[0029] Based on the transmittance, the standard thermometric multiplicative calibration coefficient, the standard thermometric additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point, the thermometric additive calibration coefficient in the magnification lens grayscale response relationship is determined, wherein the expected intersection point is the expected intersection point of the standard grayscale response relationship and the magnification lens grayscale response relationship in the temperature-grayscale response value space.

[0030] In conjunction with the first aspect, in the sixth possible embodiment, the standard grayscale response relationship is the response relationship of the infrared thermometer under the calibrated ambient temperature when the target magnifying glass is not installed;

[0031] The step of determining the magnification grayscale response relationship of the infrared temperature measuring device when the target magnification lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device, includes:

[0032] Based on the transmittance and the standard grayscale response relationship used by the infrared thermometer when measuring temperature, the grayscale response relationship of the infrared thermometer under the calibrated ambient temperature is determined when the target telescope is installed.

[0033] The method further includes:

[0034] The current ambient temperature is obtained, and the infrared thermometer measures the first grayscale response value of the target object at the current ambient temperature.

[0035] Based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, a third grayscale response value is determined by the infrared thermometer measuring device at the current ambient temperature to measure the calibration object, wherein the second grayscale response value is the grayscale response value obtained by the infrared thermometer measuring device at the calibration ambient temperature to measure the calibration object;

[0036] Based on the current ambient temperature, the calibrated ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value, determine the fourth grayscale response value obtained by the infrared thermometer measuring the target object at the calibrated ambient temperature;

[0037] Based on the grayscale response relationship of the magnification lens, the temperature corresponding to the fourth grayscale response value is determined as the temperature of the target object.

[0038] Secondly, embodiments of this application provide a calibration-free infrared temperature measurement device, the device comprising:

[0039] An acquisition module is used to acquire the transmittance of a target magnifying glass in response to the installation of a target magnifying glass on an infrared thermometer.

[0040] The relationship determination module determines the magnification grayscale response relationship of the infrared temperature measuring device when the target magnification lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature; wherein, the grayscale response relationship is the correspondence between the grayscale response value output by the infrared temperature measuring device and the temperature value output based on the grayscale response value;

[0041] The temperature determination module is used to determine the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens.

[0042] In one possible embodiment, the temperature determination module is specifically used to obtain the grayscale response value obtained by converting the infrared signal radiated by the target object when the infrared thermometer is installed with the target magnifying glass;

[0043] The temperature value of the target object is determined based on the grayscale response relationship of the magnification lens;

[0044] The relationship determination module is also used for,

[0045] Without the target magnifying glass installed on the first calibration device, the standard grayscale response values ​​of the first calibration device when measuring the temperature of different objects are obtained;

[0046] When the target magnifying lens is installed on the first calibration device, obtain the magnifying lens grayscale response values ​​when the first calibration device measures the temperature of different objects;

[0047] Determine the first rate of change of the standard grayscale response value with object temperature and the second rate of change of the magnification lens grayscale response value with object temperature;

[0048] The ratio of the second rate of change to the first rate of change is labeled as the transmittance of the target microscope.

[0049] The relationship determination module is specifically used to obtain the first standard grayscale response value when the first calibration device measures the first blackbody and the second standard grayscale response value when it measures the second blackbody, wherein the object temperatures of the first blackbody and the second blackbody are different.

[0050] Acquire the grayscale response value of the first lens when the first calibration device measures the first blackbody and the grayscale response value of the second lens when measuring the second blackbody;

[0051] The difference between the first standard grayscale response value and the second standard grayscale response value is determined as the first rate of change;

[0052] The difference between the grayscale response value of the first magnification lens and the grayscale response value of the second magnification lens is determined as the second rate of change;

[0053] The grayscale response relationship includes the temperature measurement multiplicative calibration coefficient and the temperature measurement additive calibration coefficient;

[0054] The relationship determination module is specifically used to determine the superconducting temperature calibration coefficient of the microscope in the microscope grayscale response relationship based on the transmittance, the standard temperature measurement multiplicative calibration coefficient, the standard temperature measurement additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point. The expected intersection point is the expected intersection point of the standard grayscale response relationship and the microscope grayscale response relationship in the temperature-grayscale response value space.

[0055] The standard grayscale response relationship is the response relationship of the infrared thermometer under the calibrated ambient temperature when the target magnifying glass is not installed;

[0056] The relationship determination module is specifically used to determine the grayscale response relationship of the infrared temperature measuring device at a calibrated ambient temperature when the target lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature.

[0057] The current ambient temperature is obtained, and the infrared thermometer measures the first grayscale response value of the target object at the current ambient temperature.

[0058] Based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, a third grayscale response value is determined by the infrared thermometer measuring device at the current ambient temperature to measure the calibration object, wherein the second grayscale response value is the grayscale response value obtained by the infrared thermometer measuring device at the calibration ambient temperature to measure the calibration object;

[0059] Based on the current ambient temperature, the calibrated ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value, determine the fourth grayscale response value obtained by the infrared thermometer measuring the target object at the calibrated ambient temperature;

[0060] Based on the grayscale response relationship of the magnification lens, the temperature corresponding to the fourth grayscale response value is determined as the temperature of the target object.

[0061] Thirdly, this application provides an electronic device, wherein the electronic device includes:

[0062] Memory, used to store computer programs;

[0063] The processor, when executing the program stored in the memory, implements the calibration-free infrared temperature measurement method described in the first aspect.

[0064] Fourthly, this embodiment provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, it implements the calibration-free infrared temperature measurement method described in the first aspect.

[0065] Beneficial effects of the embodiments in this application:

[0066] This application provides a calibration-free infrared temperature measurement method, apparatus, and device. In response to installing a target magnifying glass on the infrared temperature measurement device, the transmittance of the target magnifying glass is obtained. Based on the obtained transmittance and the standard grayscale response relationship used by the infrared temperature measurement device when measuring temperature, the magnifying glass grayscale response relationship of the infrared temperature measurement device when the target magnifying glass is installed is determined. Based on the magnifying glass grayscale response relationship, the temperature value of the measured target object is output.

[0067] Because the standard grayscale response relationship used by infrared thermometers is a response relationship that is pre-set within the device at the factory, the calibration-free infrared thermometer method provided in this application allows for the direct determination of the target lens's grayscale response relationship after installation. This is achieved by combining the standard grayscale response relationship used by the current infrared thermometer with the transmittance of the target lens. From the user's perspective, this eliminates the need to return the infrared thermometer and target lens to the manufacturer, effectively reducing calibration costs and improving the user experience.

[0068] Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0070] Figure 1 A possible flowchart of a calibration-free infrared temperature measurement method provided in an embodiment of this application;

[0071] Figure 2 Another possible flowchart for the calibration-free infrared temperature measurement method provided in the embodiments of this application;

[0072] Figure 3 A possible flowchart for determining the grayscale response relationship of a magnifying glass, provided in an embodiment of this application;

[0073] Figure 4 This is a possible schematic diagram of the temperature-grayscale response curve provided in an embodiment of this application;

[0074] Figure 5 Another possible schematic diagram of the temperature-grayscale response curve provided for an embodiment of this application;

[0075] Figure 6 Another possible flowchart for calibration-free infrared thermometry provided in the embodiments of this application;

[0076] Figure 7 A possible schematic diagram of the calibration-free infrared temperature measurement device provided in the embodiments of this application;

[0077] Figure 8 This is a schematic diagram of a possible structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0078] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art based on this application are within the scope of protection of this application.

[0079] In nature, all objects radiate infrared radiation. Infrared thermometers utilize this characteristic to acquire the infrared radiation emitted by a target object. Through photoelectric conversion and signal processing, the infrared signal radiated by the target object is converted into a corresponding grayscale response value. Since the grayscale response value depends on the intensity of the infrared signal, and the intensity of the infrared signal depends on the object's temperature, the object's temperature can be calculated from the grayscale response value if the grayscale response relationship between temperature and grayscale response value is known. Therefore, determining this response relationship is a prerequisite for temperature measurement. For ease of description, the process of determining the response relationship will be referred to as calibration below.

[0080] In one possible implementation, during the calibration process, an infrared thermometer can be used to measure objects at different temperatures. The grayscale response relationship is then fitted based on the object's temperature and the grayscale response values ​​measured by the infrared thermometer. Specifically, the measured temperatures of the objects are denoted as T1, T2, T3, ..., T... m The measured grayscale response values ​​are denoted as R1, R2, R3, ..., R... m Then for (T1, R1), (T2, R2), (T3, R3), ..., (T m R m By performing curve fitting, the curve equation T = f is obtained. std (x) represents the grayscale response relationship of the infrared temperature measurement device, where x is the grayscale response value and T is the temperature of the object being measured.

[0081] In another possible implementation, the calibration of the infrared thermometer can be assisted by a pre-calibrated device (hereinafter referred to as the baseline device). For example, under the same calibration environment, a set of different temperature measurement objects are measured using both the baseline device and the infrared thermometer, and the grayscale response values ​​output by the baseline device are denoted as: G1, G2, G3, ..., G... n The grayscale response values ​​output by the infrared temperature measurement device are denoted as: R1, R2, R3, ..., R n For (G1, R1), (G2, R2), (G3, R3), ..., (G n R n Perform line fitting to determine the slope k of the fitted line. std and intercept bstd .

[0082]

[0083] The grayscale response relationship of the infrared temperature measurement device is as follows:

[0084] f std (x)=k std *f0(x)+b std …Formula 2

[0085] Where f0(x) represents the grayscale response relationship of the baseline device.

[0086] As the foregoing analysis shows, the grayscale response relationship of a device can be represented by a curve equation or by a linear transformation of a known grayscale response relationship (such as Equation 2). This application does not impose any limitations on the representation of the grayscale response relationship.

[0087] Based on the grayscale response values ​​collected by the temperature sensor of the infrared thermometer, the temperature of the target object being measured can be calculated according to the aforementioned grayscale response relationship, and the measured temperature value can be output to the user. However, in practical applications, there is a need to install different magnification lenses on the original standard lens of the infrared thermometer to expand its application range. For example, a telephoto lens can be installed on the original standard lens of the infrared thermometer to measure the temperature of distant object surfaces. Alternatively, a macro lens, such as a 0.5x lens, can be installed on the original standard lens of the infrared thermometer to shorten the focal length and measure the temperature of nearby object surfaces.

[0088] Because the installed magnification lens alters the focal length, beam angle, and other temperature measurement parameters of the infrared thermometer, it changes the amount of infrared radiation acquired by the device, resulting in a change in the grayscale response value. If the infrared thermometer with the magnification lens still uses the original standard lens's response relationship and outputs the measured temperature value of the target object based on the changed grayscale response value, a significant error will occur between the output temperature and the actual temperature of the target object.

[0089] To calibrate infrared thermometers with different magnification lenses, ensuring accurate output correction based on the actual response after lens installation, the usual method involves the user sending the installed lens and infrared thermometer back to the manufacturer. The manufacturer then uses a baseline device with identical parameters to determine the response relationship between the baseline response and the infrared thermometer's output. After adjusting the original response relationship, the manufacturer sends the device and lens back to the user. This method of calibrating the grayscale response of infrared thermometers is costly and negatively impacts the user experience.

[0090] Therefore, accurately outputting the true temperature value of the target object while improving user experience has become a pressing problem. Based on the aforementioned process of temperature measurement using infrared thermometers, macroscopically, there is a response relationship between the input "radiated infrared radiation" and the output "temperature value" of an infrared thermometer; that is, the temperature value output responds to the input radiated infrared signal. Microscopically, the process of an infrared thermometer outputting a temperature value can be divided into two processes:

[0091] The first step involves converting the input infrared radiation signal into a grayscale response value. During this process, a corresponding conversion relationship exists between the input infrared radiation signal and the resulting grayscale response value; this relationship is referred to as the radiation response relationship.

[0092] The second process involves converting the grayscale response values ​​into temperature values ​​and outputting them to the user. During this process, the grayscale response values ​​and the output temperature values ​​maintain the grayscale response relationship described above.

[0093] When calibrating the response relationship of infrared thermometers, related technologies often modify the magnification parameters of the infrared thermometers to change the radiation response relationship in the first process, so that the grayscale response value output based on the radiation response relationship, after passing through the grayscale response relationship in the second process, corresponds to the true temperature value of the object.

[0094] For example, assuming the infrared thermometer uses a standard lens for temperature measurement, the radiation response relationship of the first process described above is G = f std (L), where L is the infrared signal radiated by the target object, and G is the grayscale response value obtained by the temperature sensor of the infrared thermometer based on the received infrared signal radiated by the target object. The grayscale response relationship of the second process is T = f std(G), where G is the grayscale response value obtained by the temperature sensor of the infrared temperature measuring device based on the infrared signal radiated by the target object, and T is the temperature of the target object.

[0095] When facing the problem of accurately outputting the temperature value of a target object after installing a magnifying lens, it is equivalent to calibrating the response relationship of the infrared thermometer to obtain a response relationship that can accurately output the temperature value. To obtain an accurate response relationship, related technologies propose changing the radiation response relationship in the first process based on the magnifying lens parameters of the infrared thermometer after installation, transforming the radiation response relationship from G=f... std (L) is changed to G = f p (L). This allows the infrared thermometer to obtain an infrared signal radiated by a target object with a temperature of 37°C when the lens is installed, and convert the resulting grayscale response value G. p The same infrared signal radiated by a target object at 37°C, obtained by the same infrared thermometer through the original standard lens, is converted into a grayscale response value G. std The same applies. Thus, without altering the grayscale response relationship in the second process, the grayscale response value G can be obtained. p With grayscale response value G std The output temperature values ​​are all the same, namely 37℃.

[0096] However, since the radiometric response relationship reflects the mapping between the input infrared radiation signal and the converted grayscale response value, determining an accurate radiometric response relationship requires extensive preliminary testing using equipment with stable infrared radiation signals. In other words, this existing method requires equipment manufacturers to incur significant costs to determine an accurate radiometric response relationship, resulting in high costs and low calibration efficiency.

[0097] In view of this, embodiments of this application provide a calibration-free infrared temperature measurement method, which can be used in the infrared temperature measurement device itself, or in electronic devices connected to the infrared temperature measurement device and having the ability to adjust grayscale response relationships. These electronic devices include, but are not limited to, mobile terminals, personal computers, servers, etc.

[0098] like Figure 1 As shown, the calibration-free infrared temperature measurement method provided in this application embodiment may include the following steps:

[0099] S11. In response to installing a target magnifying glass on an infrared temperature measuring device, obtain the transmittance of the target magnifying glass;

[0100] S12. Based on the transmittance of the target magnifying glass and the standard grayscale response relationship used by the infrared thermometer when measuring temperature, determine the grayscale response relationship of the infrared thermometer when the target magnifying glass is installed. The grayscale response relationship is the correspondence between the grayscale response value output by the infrared thermometer and the temperature value output based on that grayscale response value.

[0101] S13. Determine the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens.

[0102] Because the standard grayscale response relationship used by infrared thermometers is a response relationship that is pre-set within the device at the factory, the calibration-free infrared thermometer method provided in this application allows for the direct determination of the magnification grayscale response relationship of the infrared thermometer after installing a target magnification lens, based on the standard grayscale response relationship used by the current infrared thermometer and the transmittance of the installed target magnification lens. Then, based on this magnification grayscale response relationship, the temperature value of the measured target object is output. This eliminates the need to send the infrared thermometer and target magnification lens back to the manufacturer; the magnification grayscale response relationship for outputting accurate temperature values ​​can be quickly determined directly based on the transmittance of the target magnification lens and the original standard grayscale response relationship. This effectively improves the temperature measurement efficiency of the infrared thermometer after changing the magnification lens, thus enhancing the user experience.

[0103] The following will provide a detailed explanation of steps S11-S13:

[0104] The transmittance of a target magnification lens is an optical parameter that represents the ability of light to pass through it; specifically, it is the ratio between the luminous flux transmitted through the lens and the luminous flux incident on it. In practical applications, the transmittance of a target magnification lens is recorded in the product manual or instruction manual, or on the surface of the lens itself. Users can determine the transmittance of the target magnification lens by consulting the manual or instruction manual, or by observing its surface. For situations where the transmittance cannot be directly observed, users can send the lens to a professional optical measurement center. The center will then use specialized optical transmittance measurement equipment to measure the transmittance and obtain the target magnification lens's transmittance.

[0105] In one possible embodiment, the transmittance of the target scope is stored in a built-in memory unit of the target scope, such as in a microcontroller or FPGA (Field Programmable Gate Array) built into the target scope. During step S11, the transmittance of the target scope can be obtained by accessing the built-in memory unit of the target scope and reading it from it.

[0106] In one possible embodiment, when performing step S11, in response to the need to install a target magnification lens on the infrared temperature measurement device, the transmittance of the target magnification lens is obtained. The user can be prompted to input the transmittance of the installed target magnification lens through the user interface, and the transmittance of the target magnification lens input by the user is obtained.

[0107] In another possible embodiment, when performing step S11, reference can be made to Figure 2 The flowchart shown illustrates how the transmittance of the target scope can be predetermined in the following manner:

[0108] S111. Without installing a target magnifying glass on the first calibration device, obtain the standard grayscale response value when the first calibration device measures the temperature of different objects.

[0109] S112. With the target magnifying glass installed on the first calibration device, obtain the magnifying glass grayscale response value when the first calibration device measures the temperature of different objects.

[0110] S113. Determine the first rate of change of the standard grayscale response value with the object temperature and the second rate of change of the magnifying glass grayscale response value with the object temperature.

[0111] S114. Determine the ratio of the second rate of change to the first rate of change, and use it as the transmittance of the target magnification lens.

[0112] In steps S111 and S113, when obtaining the response values ​​of the first calibration device when measuring the temperature of different objects, the objects with different temperatures refer to target radiating objects with different self-temperatures. When there are no other radiating objects in the environment where the infrared temperature measuring device is located, the measured temperature obtained by the infrared temperature measuring device for the object should be equal to the temperature of the object itself.

[0113] For example, if the target radiating object is a blackbody, it is a radiation source capable of stably radiating heat corresponding to its own temperature to its surroundings. For instance, assuming the first blackbody has a temperature of 60°C, it means that the first blackbody can stably radiate 60°C of heat to its surroundings. Ideally, the infrared thermometer should measure the temperature of this first blackbody at 60°C.

[0114] In this embodiment, if there are many objects with different object temperatures, grayscale response values ​​can be obtained by measuring multiple objects with different object temperatures using a first calibration device. It can be understood that the more objects with different object temperatures selected, the more accurate the rate of change of the grayscale response value with respect to object temperature.

[0115] For example, in one possible embodiment, when performing step S111 or step S113, the first calibration device can be used to measure target radiating objects with different temperatures without the target magnification lens installed, to obtain the corresponding standard grayscale response values, thereby constructing a standard objective function for the standard grayscale response values ​​of the first calibration device as a function of object temperature without the target magnification lens installed. Alternatively, the first calibration device can be used to measure target radiating objects with different temperatures with the target magnification lens installed, to obtain the corresponding magnification lens grayscale response values, thereby constructing a magnification lens objective function for the magnification lens grayscale response values ​​as a function of object temperature with the target magnification lens installed.

[0116] In this embodiment, when performing step S113, the slope value of the standard objective function can be determined as the first rate of change of the standard grayscale response value with the object temperature, and the slope value of the magnification objective function can be determined as the second rate of change of the magnification grayscale response value with the object temperature. When performing step S114, the transmittance of the target magnification can be determined by the ratio between the slope value of the magnification objective function and the slope value of the standard objective function.

[0117] In another possible embodiment, reference may be made to, such as Figure 2 The illustrated operation diagram shows two objects with different temperatures: a first blackbody and a second blackbody. When performing steps S111 and S113, the standard grayscale response value (assumed to be Fs1) of the first blackbody and the magnified grayscale response value (Fr1) of the first blackbody, the standard grayscale response value (Fs2) of the second blackbody, and the second magnified grayscale response value (Fr2) of the second blackbody can be measured using a first calibration device, both with and without a magnified lens. In this embodiment, when performing step S113, the standard grayscale response values ​​of the first and second blackbody can be determined as a first rate of change, i.e., first rate of change = Fs1 - Fs2; and the magnified grayscale response values ​​of the first and second blackbody can be determined as a second rate of change, i.e., second rate of change = Fr1 - Fr2. Based on this, when performing step S114, the transmittance of the target magnified lens is (Fr1 - Fr2) / (Fs1 - Fs2).

[0118] For example, assuming the radiation source temperature of the first blackbody is 60°C, the radiation source temperature of the second blackbody is 150°C, and the response value output by the first calibration device is the grayscale value G of the pixel at the center of the image, then the transmittance of the target magnifying glass can be calculated using the following formula:

[0119]

[0120] Wherein, G2 is the grayscale value of the center pixel of the image obtained by measuring the first blackbody with the target magnification lens installed; G4 is the grayscale value of the center pixel of the image obtained by measuring the second blackbody with the target magnification lens installed; G1 is the grayscale value of the center pixel of the image obtained by measuring the first blackbody without the target magnification lens installed; and G3 is the grayscale value of the center pixel of the image obtained by measuring the second blackbody without the target magnification lens installed.

[0121] By using the embodiments of this application, when the user cannot directly query the transmittance of the target magnification lens, the transmittance of the target magnification lens can be quickly obtained by measuring the response values ​​of objects with different temperatures, with and without the target magnification lens installed by the first calibration device. The transmittance of the target magnification lens can be determined as quickly as possible based on two objects with different temperatures, which is beneficial to improving the efficiency of response relationship adjustment.

[0122] For ease of distinction, this article refers to the correspondence between the grayscale response value obtained by the infrared thermometer and the output temperature value when the infrared thermometer is operating at the calibrated ambient temperature and without a target magnifying glass, as the standard grayscale response relationship, denoted as y = f. std (x), where x is the grayscale response value and y is the temperature value output by the infrared thermometer. In this paper, the correspondence between the grayscale response value obtained by the infrared thermometer and the output temperature value when measuring the temperature of a target object after installing a target magnification lens is called the magnification lens grayscale response relationship, denoted as y = f. lens (x).

[0123] In this paper, the correspondence between the input and output results of the baseline measurement device under calibrated ambient temperature without the target magnification lens is called the baseline response relationship, denoted as y = f0(x). The grayscale response relationship between the baseline measurement device and the grayscale response relationship of the target infrared thermometer is called the correction response relationship, denoted as R = f(f0(x)). From this, we can deduce:

[0124] The standard grayscale response of the infrared thermometer without a target magnification lens and the baseline grayscale response of the measurement device without a target magnification lens are related by the following formula:

[0125] f std (x)=R=f(f0(x))······(Formula 2)

[0126] In one possible embodiment, the aforementioned standard grayscale response relationship (or the modified response relationship in Formula 2) can be determined by the equipment manufacturer before the infrared temperature measurement equipment leaves the factory, without installing any target magnification lens, by pre-measuring the temperature of different target objects and then determining the response relationship between the converted grayscale response value and the output temperature value. The equipment manufacturer can store the pre-obtained standard grayscale response relationship in the memory of the infrared temperature measurement equipment, so that the user can subsequently obtain the standard grayscale response relationship of the infrared temperature measurement equipment by reading the data stored in the memory.

[0127] In another possible embodiment, the above-mentioned standard grayscale response relationship (or the modified response relationship in Formula 2) can be obtained from the grayscale response values ​​G1, G2, G3, ..., G1 output by the above-mentioned preliminary testing equipment. n And the grayscale response values ​​R1, R2, R3, ..., R output by the infrared temperature measurement equipment. n It can be calculated according to Formula 3 below.

[0128]

[0129] Where, k std b is the standard temperature measurement multiplicative factor. std The standard temperature additive coefficient.

[0130] In one possible embodiment, the standard temperature measurement multiplicative coefficient and standard temperature measurement additive coefficient of the infrared temperature measurement device can be obtained by reading data pre-stored in the memory of the infrared temperature measurement device by the device manufacturer.

[0131] In another possible embodiment, the standard temperature measurement multiplicative coefficient and the standard temperature measurement additive coefficient of the infrared thermometer can be calculated through the relationship between the response value measured in step S111 and the temperatures of different objects. For example, it can be as follows: Figure 4 As shown, under the calibrated ambient temperature, the experimental equipment measured a group of black bodies (different black bodies have different temperatures) to obtain the corresponding grayscale response values ​​G1, G2, ..., G... n This allows us to obtain the functional relationship G(T) between the grayscale response value output by the testing equipment under the calibrated ambient temperature and the temperature. The G(T) relationship curve can be shown as follows: Figure 4 The temperature-grayscale response curve of the magnification lens is shown in the figure.

[0132] Without installing a target magnifying glass on the infrared thermometer, the corresponding grayscale response values ​​R1, R2, ..., R of the same group of blackbodies are obtained by measuring them. n This leads to the functional relationship between the output grayscale response value and temperature, R(T), without the lens installed. The R(T) curve can be seen as follows: Figure 4As shown in the standard temperature-grayscale response curve, the mapping relationship between the R(T) function and the G(T) function is calculated: R(T) = kG(T) + b. Then, k in the mapping relationship is determined to be the standard temperature measurement multiplicative coefficient of the infrared temperature measuring device, and b in the mapping relationship is determined to be the standard temperature measurement additive coefficient of the infrared temperature measuring device.

[0133] Based on the obtained standard temperature measurement multiplicative coefficient and standard temperature measurement additive coefficient of the infrared temperature measurement device, the above step S12 can be performed as follows: Figure 3 As shown, it includes the following steps:

[0134] S121. Based on the transmittance of the target magnifying glass, correct the standard temperature measurement multiplicative calibration coefficient in the standard grayscale response relationship to obtain the magnifying glass temperature measurement calibration coefficient in the magnifying glass grayscale response relationship.

[0135] S122. Based on the transmittance of the target lens, the standard thermometric multiplicative calibration coefficient, the standard thermometric additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point, determine the thermometric additive calibration coefficient in the magnification lens grayscale response relationship. The expected intersection point is the anticipated intersection point of the standard grayscale response relationship and the magnification lens grayscale response relationship in the temperature response value space.

[0136] Step S121 can be determined through the following calculation process:

[0137] According to Formula 1, the transmittance of the target telescope is Tran. Assuming the multiplicative coefficient for the infrared thermometer is k... lens Furthermore, the multiplicative coefficient of the infrared thermometer can be corrected using Formula 4.

[0138] k real =k std ×Tran······(Formula 4)

[0139] Combining formulas one through three above, formula three can be simplified to formula five:

[0140] f std (x)=k std *f0(x)+b std ...(Formula 5)

[0141] Furthermore, the grayscale response relationship of the infrared thermometer can be simplified to Formula Six:

[0142] f lens (x)=k lens *f0(x)+b lens =k std *Tran*f0(x)+b lens ...(Formula Six)

[0143] Experimental results confirm the existence of a predetermined temperature value T0 at which the standard grayscale response relationship and the magnification lens grayscale response relationship are equal. (For reference...) Figure 4 As shown, there exists a predicted temperature value T0, which is the expected intersection point of the magnification lens grayscale response relationship and the standard grayscale response relationship in the temperature response value space. Substituting the predicted temperature value T0 into Formula 6 above, we can obtain Formulas 7 and 8 below, and then calculate the additive coefficient of the magnification lens thermometry.

[0144] k std *f0(T0)+b std =k std *Tran*f T (T0)+b lens ...(Formula Seven)

[0145] b lens =k std *f0(T0)+b std -k std *Tran*f0(T0)·····(Formula 8)

[0146] The grayscale response relationship of the infrared thermometer under the calibrated ambient temperature can be quickly obtained as follows:

[0147] f lens (x)=k lens *f0(x)+b lens

[0148] =k std *Tran*f0(x)+k std *f0(T0)+b std -k std *Tran*f0(T0)

[0149] ...(Formula Nine)

[0150] By substituting different temperatures x into Formula 9, we can obtain the output response value of the infrared thermometer when the target magnification lens is installed in the calibration environment temperature, in response to different temperature inputs. This allows for the rapid calibration of the temperature measured by the infrared thermometer with the magnification lens installed.

[0151] Because infrared thermometers are typically not located at their calibrated ambient temperature, they are affected by interfering infrared radiation in the environment. Therefore, the grayscale response of the infrared thermometer at the current ambient temperature will deviate from its calibrated ambient temperature grayscale response. For example... Figure 5As shown, the magnification response relationship of the calibrated ambient temperature lens and the magnification response relationship of the current ambient temperature lens are illustrated. Therefore, accurately determining the magnification grayscale response relationship of the infrared thermometer under the current ambient temperature for adjustment, and thus obtaining accurate measurement results, becomes the key to improving the measurement accuracy of infrared thermometers.

[0152] Since the object whose temperature is being measured remains unchanged, the influence of the current ambient temperature on the grayscale response relationship of the magnification lens is mainly reflected in its effect on the temperature measurement additive coefficient. Based on this, in one possible embodiment, step S13 above, which determines the temperature value of the target object measured by the infrared thermometer according to the grayscale response relationship of the magnification lens, includes:

[0153] When an infrared thermometer is installed with a target magnifying lens, the grayscale response value is obtained based on the conversion of the infrared signal radiated by the target object.

[0154] Based on the grayscale response relationship of the magnification lens, the temperature value of the target object is determined based on the grayscale response value of the output.

[0155] In this embodiment, the grayscale response value obtained by converting the infrared signal radiated by the target object is the original grayscale response value. This original grayscale response value is a digital signal obtained directly from the radiated infrared signal through analog-to-digital conversion, without any post-processing.

[0156] In one possible embodiment, it can be as follows: Figure 6 As shown, the output temperature of the infrared thermometer can be corrected through the following steps:

[0157] S21. Based on the transmittance of the target magnifying glass and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature, determine the grayscale response relationship of the infrared temperature measuring device at the calibrated ambient temperature when the target magnifying glass is installed; the specific determination method can be referred to the contents recorded in S121-S122 above, and will not be repeated here.

[0158] S22. Obtain the current ambient temperature and the first grayscale response value obtained by the infrared thermometer at the current ambient temperature when measuring the target object; denoted as G1. The specific acquisition method can be referred to the content recorded in step S113 above, which will not be repeated here.

[0159] S23. Based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, determine the third grayscale response value obtained by the infrared thermometer when measuring the calibration object at the current ambient temperature; wherein, the second grayscale response value is the response value obtained by the infrared thermometer when measuring the calibration object at the calibration ambient temperature, denoted as G2, and the third grayscale response value is denoted as G3.

[0160] S24. Based on the current ambient temperature, the calibrated ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value, determine the fourth grayscale response value obtained by the infrared thermometer when measuring the target object at the calibrated ambient temperature. The fourth grayscale response value is denoted as G4.

[0161] S25. Based on the grayscale response relationship of the magnifying glass, determine the temperature corresponding to the fourth grayscale response value, and use it as the temperature of the target object.

[0162] Specifically, the third grayscale response value in step S23 and the fourth grayscale response value in step S24 can be calculated using the following set of formulas:

[0163]

[0164] Where a1~a8 are the preliminary prior parameters, T cal Given the ambient temperature parameter, G2 = k lens *f0(T cal )+b lens From the above formula, we can find G3, and then G4. Then, according to G4 = k... lens *f0(T)+b lens The target temperature T can be obtained.

[0165] By using the embodiments of this application, the accurate measured temperature value corresponding to the current ambient temperature can be quickly calculated based on the different response values ​​output by the infrared temperature measuring device to the measured target under the current ambient temperature. This effectively improves the calibration of the temperature measurement results under the magnification lens of the infrared temperature measuring device and improves the measurement accuracy under the magnification lens of the installed target.

[0166] On the other hand, embodiments of this application provide a calibration-free infrared temperature measurement device, such as... Figure 7 As shown, the device includes:

[0167] The acquisition module 701 is used to acquire the transmittance of the target magnifying lens in response to the installation of the target magnifying lens on the infrared temperature measurement device;

[0168] The relationship determination module 702 determines the magnification grayscale response relationship of the infrared temperature measuring device when the target magnification lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature; wherein, the grayscale response relationship is the correspondence between the grayscale response value output by the infrared temperature measuring device and the temperature value output based on the grayscale response value;

[0169] The temperature determination module 703 is used to determine the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens.

[0170] In this embodiment, the transmittance of the target lens is obtained in response to the installation of the target lens on the infrared temperature measuring device; based on the obtained transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature, the grayscale response relationship of the infrared temperature measuring device when the target lens is installed is determined; and the temperature value of the measured target object is output according to the grayscale response relationship of the target lens.

[0171] Because the standard grayscale response relationship used by infrared thermometers is a response relationship that is pre-set within the device at the factory, the calibration-free infrared thermometer method provided in this application allows for the direct determination of the target lens's grayscale response relationship after installation. This is achieved by combining the standard grayscale response relationship used by the current infrared thermometer with the transmittance of the target lens. From the user's perspective, this eliminates the need to return the infrared thermometer and target lens to the manufacturer, effectively reducing calibration costs and improving the user experience.

[0172] In one possible embodiment, the temperature determination module 703 is specifically used to obtain the grayscale response value obtained by converting the infrared signal radiated by the target object when the infrared thermometer is installed with the target magnifying lens;

[0173] The temperature value of the target object is determined based on the grayscale response relationship of the magnification lens;

[0174] The relationship determination module 702 is also used for,

[0175] Without the target magnifying glass installed on the first calibration device, the standard grayscale response values ​​of the first calibration device when measuring the temperature of different objects are obtained;

[0176] When the target magnifying lens is installed on the first calibration device, obtain the magnifying lens grayscale response values ​​when the first calibration device measures the temperature of different objects;

[0177] Determine the first rate of change of the standard grayscale response value with object temperature and the second rate of change of the magnification lens grayscale response value with object temperature;

[0178] The ratio of the second rate of change to the first rate of change is labeled as the transmittance of the target microscope.

[0179] The relationship determination module 702 is specifically used to obtain the first standard grayscale response value when the first calibration device measures the first blackbody and the second standard grayscale response value when it measures the second blackbody, wherein the object temperatures of the first blackbody and the second blackbody are different.

[0180] Acquire the grayscale response value of the first lens when the first calibration device measures the first blackbody and the grayscale response value of the second lens when measuring the second blackbody;

[0181] The difference between the first standard grayscale response value and the second standard grayscale response value is determined as the first rate of change;

[0182] The difference between the grayscale response value of the first magnification lens and the grayscale response value of the second magnification lens is determined as the second rate of change;

[0183] The grayscale response relationship includes the temperature measurement multiplicative calibration coefficient and the temperature measurement additive calibration coefficient;

[0184] The relationship determination module 702 is specifically used to determine the superconducting temperature calibration coefficient of the microscope in the superconducting temperature calibration coefficient based on the transmittance, the standard temperature measurement multiplicative calibration coefficient, the standard temperature measurement additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point, wherein the expected intersection point is the expected intersection point of the standard grayscale response relationship and the microscope grayscale response relationship in the temperature-grayscale response value space;

[0185] The standard grayscale response relationship is the response relationship of the infrared thermometer under the calibrated ambient temperature when the target magnifying glass is not installed;

[0186] The relationship determination module 702 is specifically used to determine the grayscale response relationship of the infrared temperature measuring device at a calibrated ambient temperature when the target lens is installed, based on the transmittance and the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature.

[0187] The current ambient temperature is obtained, and the infrared thermometer measures the first grayscale response value of the target object at the current ambient temperature.

[0188] Based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, a third grayscale response value is determined by the infrared thermometer measuring device at the current ambient temperature to measure the calibration object, wherein the second grayscale response value is the grayscale response value obtained by the infrared thermometer measuring device at the calibration ambient temperature to measure the calibration object;

[0189] Based on the current ambient temperature, the calibrated ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value, determine the fourth grayscale response value obtained by the infrared thermometer measuring the target object at the calibrated ambient temperature;

[0190] Based on the grayscale response relationship of the magnification lens, the temperature corresponding to the fourth grayscale response value is determined as the temperature of the target object.

[0191] This application also provides an electronic device, such as... Figure 8 As shown, it includes:

[0192] Memory 81 is used to store computer programs;

[0193] When processor 82 executes the program stored in memory 81, it performs the following steps:

[0194] In response to installing a target magnifying glass on an infrared thermometer, the transmittance of the target magnifying glass is obtained;

[0195] Based on the transmittance of the target magnification lens and the standard grayscale response relationship used by the infrared thermometer, the grayscale response relationship of the infrared thermometer with the target magnification lens installed is determined. The grayscale response relationship refers to the correspondence between the grayscale response value output by the infrared thermometer and the temperature value output based on that grayscale response value.

[0196] Based on the grayscale response relationship of the magnification lens, the temperature value of the target object measured by the infrared thermometer is determined.

[0197] Furthermore, the aforementioned electronic device may also include a communication bus and / or a communication interface, with the processor 82, communication interface, and memory 81 communicating with each other via the communication bus.

[0198] The communication bus mentioned in the above electronic devices can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in the diagram, but this does not mean that there is only one bus or one type of bus.

[0199] The communication interface is used for communication between the aforementioned electronic devices and other devices.

[0200] The memory may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0201] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0202] In another embodiment provided in this application, a computer-readable storage medium is also provided, which stores a computer program that, when executed by a processor, implements the steps of any of the above-described calibration-free infrared temperature measurement methods.

[0203] In another embodiment provided in this application, a computer program product containing instructions is also provided, which, when run on a computer, causes the computer to execute any of the calibration-free infrared temperature measurement methods described above.

[0204] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (SSD)).

[0205] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0206] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0207] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A calibration-free infrared thermometry method, characterized in that, The grayscale response relationship includes temperature measurement multiplicative calibration coefficients and temperature measurement additive calibration coefficients, and the method includes: In response to installing a target magnifying glass on an infrared thermometer, the transmittance of the target magnifying glass is obtained; Based on the transmittance, the standard temperature measurement multiplicative calibration coefficient in the standard grayscale response relationship used by the infrared temperature measurement device is corrected to obtain the multiplicative calibration coefficient in the multiplicative lens temperature measurement relationship. Based on the transmittance, the standard thermometric multiplicative calibration coefficient, the standard thermometric additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point, the magnifying glass thermometric additive calibration coefficient in the magnifying glass grayscale response relationship is determined. The expected intersection point is the expected intersection point of the standard grayscale response relationship and the magnifying glass grayscale response relationship in the temperature-grayscale response value space. The grayscale response relationship is the correspondence between the grayscale response value output by the infrared thermometer and the temperature value output based on the grayscale response value. Based on the grayscale response relationship of the magnification lens, the temperature value of the target object measured by the infrared thermometer is determined.

2. The method according to claim 1, characterized in that, The step of determining the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens includes: When the infrared thermometer is installed with the target magnifying lens, the grayscale response value is obtained based on the conversion of the infrared signal radiated by the target object. The temperature value of the target object is determined based on the grayscale response relationship of the magnification lens.

3. A calibration-free infrared thermometry method, characterized in that, The method includes: In response to installing a target magnifying glass on an infrared thermometer, the transmittance of the target magnifying glass is obtained; Based on the transmittance and the standard grayscale response relationship used by the infrared thermometer when measuring temperature, the grayscale response relationship of the infrared thermometer under the calibrated ambient temperature is determined when the target lens is installed; the standard grayscale response relationship is the response relationship of the infrared thermometer under the calibrated ambient temperature when the target lens is not installed; the grayscale response relationship is the correspondence between the grayscale response value output by the infrared thermometer and the temperature value output based on the grayscale response value. The current ambient temperature is obtained, and the infrared thermometer measures the first grayscale response value of the target object at the current ambient temperature. Based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, a third grayscale response value is determined by the infrared thermometer measuring device at the current ambient temperature to measure the calibration object, wherein the second grayscale response value is the grayscale response value obtained by the infrared thermometer measuring device at the calibration ambient temperature to measure the calibration object; Based on the current ambient temperature, the calibrated ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value, determine the fourth grayscale response value obtained by the infrared thermometer measuring the target object at the calibrated ambient temperature; Based on the grayscale response relationship of the magnification lens, the temperature corresponding to the fourth grayscale response value is determined as the temperature of the target object.

4. The method according to claim 1 or 3, characterized in that, The transmittance is determined in advance before the target scope leaves the factory by the following method: Without the target magnifying glass installed on the first calibration device, the standard grayscale response values ​​of the first calibration device when measuring the temperature of different objects are obtained; When the target magnifying lens is installed on the first calibration device, obtain the magnifying lens grayscale response values ​​when the first calibration device measures the temperature of different objects; Determine the first rate of change of the standard grayscale response value with object temperature and the second rate of change of the magnification lens grayscale response value with object temperature; The ratio of the second rate of change to the first rate of change is labeled as the transmittance of the target microscope.

5. The method according to claim 4, characterized in that, The step of obtaining the standard grayscale response value when the first calibration device measures the temperature of different objects includes: The first standard grayscale response value of the first calibration device when measuring the first blackbody and the second standard grayscale response value when measuring the second blackbody are obtained, wherein the object temperatures of the first blackbody and the second blackbody are different. The step of obtaining the magnification mirror grayscale response values ​​when the first calibration device measures the temperature of different objects includes: Acquire the grayscale response value of the first lens when the first calibration device measures the first blackbody and the grayscale response value of the second lens when measuring the second blackbody; Determining the first rate of change of the standard grayscale response value with respect to object temperature and the second rate of change of the magnifying glass grayscale response value with respect to object temperature includes: The difference between the first standard grayscale response value and the second standard grayscale response value is determined as the first rate of change; The difference between the grayscale response value of the first magnification lens and the grayscale response value of the second magnification lens is determined as the second rate of change.

6. A calibration-free infrared temperature measuring device, characterized in that, The grayscale response relationship includes a multiplicative calibration coefficient for temperature measurement and an additive calibration coefficient for temperature measurement. The device includes: An acquisition module is used to acquire the transmittance of a target magnifying glass in response to the installation of a target magnifying glass on an infrared thermometer. The relationship determination module is used to correct the standard temperature measurement multiplicative calibration coefficient in the standard grayscale response relationship used by the infrared temperature measuring device when measuring temperature based on the transmittance, thereby obtaining the magnification lens temperature measurement multiplicative calibration coefficient in the magnification lens grayscale response relationship; and to determine the magnification lens temperature measurement additive calibration coefficient in the magnification lens grayscale response relationship based on the transmittance, the standard temperature measurement multiplicative calibration coefficient, the standard temperature measurement additive calibration coefficient in the standard grayscale response relationship, and the expected intersection point, wherein the expected intersection point is the expected intersection point of the standard grayscale response relationship and the magnification lens grayscale response relationship in the temperature-grayscale response value space, and the grayscale response relationship is the correspondence between the grayscale response value output by the infrared temperature measuring device and the temperature value output based on the grayscale response value; The temperature determination module is used to determine the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens.

7. A calibration-free infrared temperature measuring device, characterized in that, The device includes: An acquisition module is used to acquire the transmittance of a target magnifying glass in response to the installation of a target magnifying glass on an infrared thermometer. The relationship determination module is used to determine, based on the transmittance and the standard grayscale response relationship used by the infrared thermometer when measuring temperature, the grayscale response relationship of the infrared thermometer with the target lens installed at a calibrated ambient temperature; the standard grayscale response relationship is the response relationship of the infrared thermometer without the target lens installed at a calibrated ambient temperature; the grayscale response relationship is the correspondence between the grayscale response value output by the infrared thermometer and the temperature value output based on the grayscale response value; The temperature determination module is used to determine the temperature value of the target object measured by the infrared thermometer based on the grayscale response relationship of the magnification lens. The relationship determination module is further configured to: acquire the current ambient temperature and a first grayscale response value obtained by the infrared thermometer measuring the target object at the current ambient temperature; determine a third grayscale response value obtained by the infrared thermometer measuring the calibration object at the current ambient temperature based on the current ambient temperature, the calibration ambient temperature, and the second grayscale response value, wherein the second grayscale response value is the grayscale response value obtained by the infrared thermometer measuring the calibration object at the calibration ambient temperature; determine a fourth grayscale response value obtained by the infrared thermometer measuring the target object at the calibration ambient temperature based on the current ambient temperature, the calibration ambient temperature, the first grayscale response value, the second grayscale response value, and the third grayscale response value; and determine the temperature corresponding to the fourth grayscale response value as the temperature of the target object based on the magnification lens grayscale response relationship.

8. The apparatus according to claim 6 or 7, characterized in that, The temperature determination module is specifically used to obtain the grayscale response value obtained by converting the infrared signal radiated by the target object when the infrared thermometer is installed with the target magnifying lens; The temperature value of the target object is determined based on the grayscale response relationship of the magnification lens; The relationship determination module is also used for, Without the target magnifying glass installed on the first calibration device, the standard grayscale response values ​​of the first calibration device when measuring the temperature of different objects are obtained; When the target magnifying lens is installed on the first calibration device, obtain the magnifying lens grayscale response values ​​when the first calibration device measures the temperature of different objects; Determine the first rate of change of the standard grayscale response value with object temperature and the second rate of change of the magnification lens grayscale response value with object temperature; The ratio of the second rate of change to the first rate of change is labeled as the transmittance of the target microscope. The relationship determination module is specifically used to obtain the first standard grayscale response value when the first calibration device measures the first blackbody and the second standard grayscale response value when it measures the second blackbody, wherein the object temperatures of the first blackbody and the second blackbody are different. Acquire the grayscale response value of the first lens when the first calibration device measures the first blackbody and the grayscale response value of the second lens when measuring the second blackbody; The difference between the first standard grayscale response value and the second standard grayscale response value is determined as the first rate of change; The difference between the grayscale response value of the first magnification lens and the grayscale response value of the second magnification lens is determined as the second rate of change.

9. An electronic device, characterized in that, include: Memory, used to store computer programs; A processor, when executing a program stored in memory, implements the method described in any one of claims 1-5.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method described in any one of claims 1-5.

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