KR20240068484A - Untact Walking-through Multi-body Fever Check System based on Edge-Computing Technology - Google Patents

Abstract

One aspect of the present invention relates to a non-contact walking-through multiple body temperature check system based on edge computing technology. More specifically, in the era of daily quarantine, it identifies people suspected of having a fever without waiting in line without interfering with individual activities in multiple facilities. , It is about a non-contact walking-through multi-body fever check system based on edge computing technology to prevent the possibility of virus spread in advance.
According to one embodiment of the present invention, it is possible to measure body temperature with a minimum error range from actual body temperature using a thermal imaging camera.

Description

Non-contact walking-through multi-body fever check system based on edge computing technology {Untact Walking-through Multi-body Fever Check System based on Edge-Computing Technology}

One aspect of the present invention relates to a non-contact walking-through multiple body temperature check system based on edge computing technology. More specifically, in the era of daily quarantine, it identifies people suspected of having a fever without waiting in line without interfering with individual activities in multiple facilities. , It is about a non-contact walking-through multi-body fever check system based on edge computing technology to prevent the possibility of virus spread in advance.

The content described in this section simply provides background information on embodiments of the present invention and does not constitute prior art.

Body temperature refers to the temperature inside the body. Body temperature varies greatly depending on the part of the body, but the rectal temperature measured more than 6cm from the anus is considered the standard body temperature. The normal human body temperature is said to be 369°C in the armpits, with children tending to be slightly higher than adults and the elderly tending to be lower.

A high temperature state causes a more serious situation than a low temperature state. For adults, normal body temperature is about 37℃, but about 41℃ causes convulsions and pain, and 433℃ is the maximum limit for maintaining life. Additionally, life cannot be maintained even when the body temperature is below 27℃.

This body temperature responds depending on the disease, and patients admitted to the hospital live in the room and undergo periodic tests. Items that are periodically checked include blood pressure, pulse rate, and body temperature. Among these, blood pressure and pulse can be checked in real time by attaching the corresponding measuring device to the patient's body.

However, since there is no suitable device to check body temperature in real time, the nurse in charge measures the patient's body temperature at regular intervals using a thermometer. Therefore, there is a problem that it takes a lot of manpower to check body temperature.

Additionally, in the case of hospitalized patients, body temperature is tested not only during the day but also at night, but there is a problem in that the patient is woken up during the night test.

In particular, the above problems still exist not only in hospitals but also in multi-use facilities such as subways, parks, playgrounds, and military bases, so the development of a non-contact fever check system using thermal imaging cameras is urgently needed to solve these problems.

The above-mentioned background technology is technical information that the inventor possessed for deriving the embodiments of the present invention or acquired during the derivation process, and cannot necessarily be said to be known technology disclosed to the general public before the application for the embodiments of the present invention. does not exist.

Accordingly, one aspect of the present invention has been proposed to solve the above-mentioned problems, and the purpose of the present invention is to provide a human body fever check system that enables body temperature measurement with a minimum error range from the actual body temperature using a thermal imaging camera. It is in

In addition, another object of the present invention is to provide a human body temperature check system that can accurately measure the body temperature of multiple objects at the same time when applied to users of multiple facilities.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. will be.

In order to achieve the above-posed problem, one aspect of the present invention is a thermal imaging camera that captures a thermal image of a photographed object;

a video camera that captures an image of the photographed object; and

a control unit that calculates the body temperature of the photographed object based on the thermal image transmitted from the thermal imaging camera;

The control unit,

Receiving the thermal image from the thermal imaging camera, detecting body temperature in the facial area of the photographed object from the thermal image,

Receive the image from the video camera, calculate the distance between the photographed object and the thermal imaging camera based on the transmitted image, correct the detected body temperature based on the calculated distance, and display it on the user terminal. A human body temperature check system can be provided.

According to an embodiment, the control unit measures the size of the face area of the photographed object in the image transmitted from the video camera, and calculates the distance between the photographed object and the thermal imaging camera based on the size of the face region. It can be characterized as:

According to an embodiment, the control unit identifies the identity of the photographed object whose body temperature is displayed by recognizing the face of the photographed object whose body temperature is displayed in the image transmitted from the video camera by a learning model that performs machine learning. It can be characterized as:

Depending on the embodiment, the control unit may collect a reference temperature from the outside, compare the collected reference temperature with the detected body temperature, and display the information on the user terminal.

Depending on the embodiment, the control unit may be based on edge computing.

Depending on the embodiment, the control unit may generate a fever suspicion warning event when the displayed body temperature exceeds a set range.

Depending on the embodiment, after generating the warning event, the control unit may store the photographed object whose body temperature was measured and a list of people suspected of having a fever in a DB.

As described above, according to an embodiment of the present invention, it is possible to measure body temperature with a minimized error range from the actual body temperature using a thermal imaging camera.

Additionally, when the present invention is applied to users of multiple facilities, it has the effect of accurately measuring the body temperature of multiple objects at the same time.

In addition, the effect of the present invention has various effects such as excellent versatility depending on the embodiment, and such effects can be clearly confirmed in the description of the embodiment described later.

The following drawings attached to this specification illustrate an embodiment of the present invention, and serve to further understand the technical idea of the present invention along with the detailed description of the above-described invention. Therefore, the present invention includes the matters described in such drawings. It should not be interpreted as limited to only .
Figure 1 is a diagram showing the overall configuration of the human body temperature check system according to the present invention.
Figure 2 is a diagram showing the configuration of a thermal imaging camera module according to an embodiment of the present invention.
FIG. 3 is a diagram showing the hardware configuration of the thermal imaging camera module of FIG. 2.
Figure 4 shows an example of applying the human body temperature check system according to the present invention to a hospital room.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments presented below, but may be implemented in various different forms, and should be understood to include all conversions, equivalents, and substitutes included in the spirit and technical scope of the present invention. . The embodiments presented below are provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof. Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by these terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components are assigned the same drawing numbers and overlapping descriptions thereof are omitted. do.

Figure 1 is a diagram showing the overall configuration of a human body temperature check system according to the present invention, and Figure 2 is a diagram showing the configuration of a thermal imaging camera module according to an embodiment of the present invention.

Figure 3 is a diagram showing the hardware configuration of the thermal imaging camera module of Figure 2, and Figure 4 shows an embodiment of the human body temperature check system according to the present invention applied to a hospital room.

A human body fever check system according to an embodiment of the present invention includes a thermal imaging camera 110 that captures a thermal image of a photographed object;

A video camera 120 that captures an image of a photographed object; and

A control unit 130 that calculates the body temperature of the photographed object based on the thermal image transmitted from the thermal imaging camera 110; It may be composed of one or more of the following.

Depending on the embodiment, the control unit 130 may receive a thermal image from the thermal imaging camera 110 and detect body temperature in the face area of the photographed object from the received thermal image.

In addition, the control unit 130 receives an image from the video camera 120, calculates the distance between the photographed object and the thermal imaging camera 110 based on the transmitted image, and corrects the detected body temperature based on the calculated distance. It can be displayed on the user terminal.

According to the embodiment, the control unit 130 measures the size of the face area of the photographed object in the image transmitted from the video camera 120 and calculates the distance between the photographed object and the thermal imaging camera 110 based on the size of the face region. It can be characterized as:

Depending on the embodiment, the thermal imaging camera 110 may usually be installed on the ceiling. It is installed on the ceiling and can transmit information related to thermal images captured through wired or wireless communication to the manager terminal 200.

In the image captured by the video camera 120, a virtual region (ROI, Region of Interest) is assigned to the face of the photographed object, and a relationship between the photographed object and the thermal imaging camera 110 is determined based on the size of the face specified in the virtual area. Distance can be determined. For example, it can be determined whether the photographed object is 1 m away, 2 m away, or 5 m away from the thermal imaging camera 110 based on the size of the face.

There is a difference between the skin temperature of the photographed object when the photographed object is 1 m away from the thermal imaging camera 110 and the skin temperature of the photographed object when the photographed object is 2 m away. Therefore, errors occur in the thermal image captured by the thermal imaging camera 110 depending on the distance. In order to reduce this error, the body temperature according to the thermal image captured by the thermal imaging camera 110 can be corrected based on the distance. In other words, the distance can be measured to correct the temperature.

In order to perform temperature correction according to the distance between the photographed object and the thermal imaging camera 110, a temperature correction algorithm according to the distance between the photographed object and the thermal imaging camera 110 can be applied.

Depending on the embodiment, the temperature correction algorithm may correct the temperature according to the distance to the size of the face of the photographed object. Depending on the embodiment, if the size of the face of the photographed object is H, the size of the face is h, the focus of the video camera 120 is f, and the distance to the face is d, the following equation can be established.

[Equation 1]

f : h= d: H , d=(f*H)/h

According to Equation 1, the distance between the video camera 120 and the face of the photographed object is inversely proportional to the size of the face. Additionally, the lens of the video camera 120 and the lens of the thermal imaging camera 110 may each be configured to be positioned at the same distance from the photographed object. For this configuration, the thermal imaging camera 110 and the video camera 120 may have a structure in which they are protected by a single housing, and the lenses of the thermal imaging camera 110 and the video camera 120 on the front may be oriented in the same direction. It can be placed to face.

Depending on the embodiment, the control unit 130 may collect the reference temperature from the outside, compare the collected reference temperature with the detected body temperature, and display it on the user terminal.

The human body temperature check system 10 according to an embodiment of the present invention adds a TRSM module (140, Temperature Reference Source Module) to additionally correct the temperature of the thermal image measured by the thermal imaging camera 110, separately from distance correction. It can be provided with

Depending on the embodiment, the TRSM module 140 continuously generates a constant reference temperature within the range of view of the thermal imaging camera 110, and the thermal imaging camera 110 detects the corresponding reference temperature in real time. ) may include a device that controls the body temperature measurement so that it can automatically maintain the reference temperature at all times.

Depending on the embodiment, the TRSM module 140 always maintains the reference temperature, for example, 35 degrees, so it can be applied to correct the temperature difference that varies depending on the installation environment of the thermal imaging camera 110 based on the reference temperature.

Depending on the embodiment, the TRSM module 140 may be placed in front of the lens of the thermal imaging camera 110, and may be placed at a certain distance from the lens of the thermal imaging camera 110. Specifically, a holder 150 may be formed to protrude from the front part where the lens of the thermal imaging camera 110 faces, and may be installed on this holder 150 to face the lens of the thermal imaging camera 110. The TRSM module 140 installed in this way can continuously survey a certain reference temperature within the field of view of the thermal imaging camera 110. The thermal imaging camera 110 can continuously receive the reference temperature from the TRSM module 140, and the control unit 130 compares the reference temperature with the temperature of the thermal image captured by the thermal imaging camera 110 from the object to be captured. Errors depending on the installation environment of the image camera 110 can be corrected.

Specifically, the TRSM module 140 can continuously examine the reference temperature value with the thermal imaging camera 110. For example, if the standard temperature is 36.5 degrees, the beam that maintains this temperature is continuously irradiated. Through this method, the precision of thermal images of the thermal imaging camera 110 can be further improved.

Depending on the embodiment, the control unit 130 recognizes the face of the photographed object whose body temperature is displayed in the image transmitted from the video camera 120 by a learning model that performs machine learning and identifies the identity of the photographed object whose body temperature is displayed. It can be characterized as:

Through this configuration, the human body temperature check system 10 according to an embodiment of the present invention can confirm the identity of the person with a fever, and when a person with an abnormal fever is detected, it can also generate a warning event to be described later.

Depending on the embodiment, the control unit 130 may be based on edge computing. Through this edge computing, the control unit 130 can be installed inside the housing of the thermal imaging camera 110 without the need for a separate PC or server, and thermal images can be transmitted directly from the thermal imaging camera 110 to the administrator terminal 200. Information may be transmitted.

Depending on the embodiment, the control unit 130 may generate a fever suspicion warning event when the displayed body temperature exceeds a set range.

Depending on the embodiment, after generating a warning event, the control unit 130 may store the photographed object whose body temperature is measured and the list of fever suspects in the DB.

The human body fever check system using the thermal imaging camera 110 according to the present invention may be configured to include a thermal imaging camera 110 module 100, an administrator terminal 200, and a network 300 connecting the two. there is. Here, the thermal imaging camera 110 module 100 may be configured to include one or more of a thermal imaging camera 110, a control unit 130, a video camera 120, and a TRSM module 140.

The thermal imaging camera 110 module 100 is a device that captures a thermal image of a photographed object, and captures a photographed object within a photographing range. Here, the filming object can be a patient admitted to a hospital, soldiers living in a group in a military unit, etc.

Additionally, the thermal imaging camera 110 module 100 may have its shooting direction adjusted according to a control signal. That is, the shooting direction can be adjusted to photograph the photographed object, and the photographed object can be photographed at the adjusted position.

To this end, the thermal imaging camera 110 module 100 may be configured to include a thermal imaging camera 110, a shooting direction control unit, and a temperature detection unit.

The thermal imaging camera 110 is a camera that measures heat (temperature) distribution and can not only generate images based on temperature differences but also accurately measure these temperature differences. In addition, since all objects with an absolute temperature of 0K or higher generate infrared rays on their own, there is an advantage in that images can be acquired regardless of day or night without separate lighting using the thermal imaging camera 110.

This thermal imaging camera 110 has been developed for military purposes for night-time surveillance, but these days, its utility as a non-contact temperature measurement equipment is recognized, and its application cases are increasing.

The thermal imaging camera 110 is capable of acquiring images without additional lighting and uses the characteristics of accurately measuring temperature differences to inspect transportation such as automobiles and railroads, surveillance systems, defect inspection of electronic equipment, and swine flu inspection. It can be applied to various fields.

In the present invention, the area where the thermal imaging camera 110 is installed may include a hospital room where it is necessary to periodically measure the patient's body temperature, an intensive care unit, and an internal unit area of a military unit where a designated location must be maintained. At this time, if there are multiple objects to be photographed, it can be installed on the ceiling or wall where the plural objects can be optimally photographed, or it can be installed on a separate support depending on the environment of the installation area.

The shooting direction control unit can adjust the shooting direction of the thermal imaging camera 110 according to the input control signal. Accordingly, the shooting direction control unit may include a panning module, a tilting module, and a magnification adjustment module to adjust the left and right angles, up and down angles, and zoom magnification of the thermal imaging camera 110.

Panning means moving the camera horizontally left and right, and tilting means moving it up and down. Additionally, magnification refers to the function of enlarging/reducing the shooting area through zooming in/out. This shooting direction control unit can be achieved by controlling the drive motors (pan drive motor and tilt drive motor) that move the camera up, down, left, and right and the lens drive motor that moves the lens to adjust the focal length with hardware or/and software.

The temperature detection unit detects the surrounding temperature of the area where the thermal imaging camera 110 is installed. The detected temperature can be used as data to correct the body temperature of the photographed object.

Depending on design conditions, the temperature detection unit may be configured as a separate temperature sensor to detect the surrounding temperature of the photographed object.

Additionally, the temperature detection unit may not be included in the thermal imaging camera 110 module 100 but may be configured as a separate device installed around the photographed object.

The control unit may calculate the body temperature of the photographed object based on the thermal image transmitted from the thermal imaging camera 110 module 100. In addition, it is configured to transmit the body temperature result calculated according to the calculated body temperature of the photographed object to the administrator terminal 200.

Additionally, the control unit may output a control signal that determines the shooting direction to the thermal imaging camera module. The body temperature of the photographed object may be calculated as the body temperature corrected based on the detected body temperature, distance information between the photographed object and the thermal imaging camera 110, and environmental information in which the thermal imaging camera 110 is installed.

To this end, the control unit may include a body temperature calculation unit, a body temperature determination unit, a text sending unit, and a shooting direction setting unit. The body temperature calculation unit detects the body temperature of the photographed object from the thermal image captured by the thermal imaging camera 110, and calculates and displays the corrected body temperature based on the distance information and environmental information of the photographed object to the detected body temperature.

First, in order to detect the body temperature of a photographed object in a thermal image captured by the thermal imaging camera 110, there is a need to limit a specific area of the photographed object in the photographed thermal image. For example, in the case of hospitalized patients or intensive care patients, they are often covered with blankets while lying down, so the area exposed by the thermal imaging camera 110 may be the upper body of the person being photographed, and even the face area among the upper body. may be limited.

At this time, if the photographed object is covered with a blanket, etc., the thermal image of the chest area may be detected similar to the surrounding temperature.

Therefore, the upper body part of the photographed object may be limited to a face, and a face recognition module capable of recognizing faces may be included.

The face recognition module can apply a user posture recognition algorithm based on body shape customization through analysis of the local heat source distribution of thermal images captured by the thermal imaging camera 110 (110). Accordingly, the facial part is extracted from the captured thermal image. More preferably, it may be limited to the nose and mouth of the photographed object that breathes out.

To explain in more detail, the facial area may be automatically focused by considering the facial area as a body temperature detection area in the progressive image processed in real time by an image signal processor (ISP) that may be included in the thermal imaging camera 110.

At this time, various algorithms such as the Adaboost algorithm may be applied to set the detection area, that is, the face area.

The body temperature detection module detects the body temperature of the captured object according to the color in the captured thermal image. In other words, the body temperature detection module detects the body temperature of the photographed object in the set thermal image area.

Preferably, it can be set to the face part through a facial recognition module, and more preferably, it can be limited to the area around the nose and mouth of the photographed object in the face area.

Alternatively, it may be configured to detect body temperature by distinguishing thermal image points around the nose and mouth according to design conditions, and set the higher body temperature among the body temperatures of each segment as the body temperature of the photographed object.

For example, cold diseases can cause symptoms of nasal congestion. Therefore, if the body temperature detection area is limited to the nose and mouth, the body temperature of the nose area may be detected as lower than the body temperature of the photographed object depending on the symptoms of nasal congestion. Therefore, the body temperature of the part of the nose and mouth that is detected as high may be configured to be detected as the body temperature of the photographed object.

It was explained in the background technology that a person's body temperature may vary depending on the measurement site. To elaborate, when measuring body temperature in the oral cavity, it is normally detected at 37℃ with a certain error, but the temperature in the armpits or rectum is about 06℃ higher than the oral cavity and is not affected by the outside temperature.

However, when the detection area is set to the face, the face area is detected to be 1-2°C lower than the body's core body temperature as it is exposed to air. Body temperature is also related to age; children are about 1°C higher than adults.

Additionally, body temperature changes several times a day, being somewhat low around 6-7 am and high in the late afternoon (around 18-19 pm), with a difference of about 1°C.

Therefore, the body temperature of the photographed object detected in the thermal image captured by the thermal imaging camera 110 can be corrected based on the physical information (age), distance information, and environmental information (photography time and surrounding temperature) of the photographed object.

If the body temperature detected from a pure thermal image that has not been corrected according to body information and environmental information reflects the age of the photographed object, body temperature detection time, and surrounding temperature, it is inconvenient for the person in charge (doctor, nurse, etc.) to check it one by one. there is.

In addition, when trying to configure a system that can automatically generate an alarm, there is a problem that a normal body temperature range must be set for each photographed object, taking into account body information and environmental information.

In other words, the normal body temperature setting range for children and adults must be entered differently in order to cope with changes in body temperature of the subject being photographed.

For example, if the age of the subject to be photographed is 0 to 2 years, the normal body temperature range should be set to 36.4 to 38℃, and if the age of the object to be photographed is 11 to 65 years, the range of normal body temperature should be set to 35.9 to 37.6℃. It must be set to enable emergency response to body temperature changes.

Accordingly, the body temperature correction module of the present invention is intended to correct the detected body temperature according to the surrounding temperature of the photographed object.

The body temperature correction module is intended to correct the body temperature detected in the facial area of the captured thermal image based on the body information and environmental information of the photographed object, such as temperature due to exposure of the body surface, temperature according to age, temperature according to the shooting time, and It is calculated and corrected taking into account the surrounding temperature (temperature of the shooting area).

This has the advantage of being able to uniformly equalize the body temperature of the photographed object.

Therefore, if only the age of the photographing object (patient) is entered, the range of normalized normal body temperature is specified and the range of normal body temperature can be fixed regardless of the age of the photographing object, the shooting time, and the surrounding temperature.

At this time, more specific correction values are set to +1~2℃ for body surface exposure, ±1~2℃ for age, ±1℃ for shooting time, and 05~2℃ for ambient temperature. It can be.

Meanwhile, changes in body temperature are controlled by the autonomic nervous system to minimize the influence of external temperature. So, under normal circumstances, sudden changes in body temperature rarely occur.

If you enter a hot place, your skin temperature will initially rise, and if you photograph the object to be photographed at this time, the body temperature may be detected as higher than the body temperature of the object to be photographed.

Conversely, if you enter a cold place, your body temperature may be detected as lower than the body temperature of the photographed object. At this time, when a certain period of time has passed, body temperature is normally regulated by enlargement of pores and sweat output.

However, these changes in body temperature may vary depending on the disease. In other words, the body temperature that is adjusted after a certain period of time according to the surrounding temperature corresponds to that of a normal person.

In the case of patients suffering from a disease, if there is a problem with the biological autonomic nervous system that can control this, the body temperature may not be converted to normal even after a certain period of time.

Therefore, the present invention is configured to correct the detected body temperature according to the ambient temperature sensed from the temperature detection unit.

On the other hand, since the body temperature corrected through the body temperature correction module of the present invention is calculated according to age and shooting time, the range of normal body temperature can be unified and set, so it is only determined whether the calculated body temperature value is within the normal range. Just do it.

If the body temperature determined by the body temperature determination unit is outside the normal range, this may be configured to be output through a notification module. Here, the notification module is configured to be displayed on the monitor of the administrator terminal 200 or to emit an alarm sound through an interface.

The text sending unit is used to notify the manager terminal 200 when the body temperature of the photographed object determined by the body temperature determination unit deviates from normal. In this case, the notification sent from the text sending unit may consist of a short message.

Embodiments according to the present invention described above may be implemented in the form of a computer program that can be executed through various components on a computer, and such a computer program may be recorded on a computer-readable medium. At this time, the media includes magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and ROM. , RAM, flash memory, etc., may include hardware devices specifically configured to store and execute program instructions.

Meanwhile, the computer program may be designed and configured specifically for the present invention, or may be known and available to those skilled in the art of computer software. Examples of computer programs may include not only machine language code such as that created by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

In the specification (particularly in the claims) of the present invention, the use of the term “above” and similar referential terms may refer to both the singular and the plural. In addition, when a range is described in the present invention, it includes the invention to which individual values within the range are applied (unless there is a statement to the contrary), and each individual value constituting the range is described in the detailed description of the invention. It's the same.

Unless there is an explicit order or statement to the contrary regarding the steps constituting the method according to the invention, the steps may be performed in any suitable order. The present invention is not necessarily limited by the order of description of the above steps. The use of any examples or illustrative terms (e.g., etc.) in the present invention is merely to describe the present invention in detail, and unless limited by the claims, the scope of the present invention is limited by the examples or illustrative terms. It doesn't work. Additionally, those skilled in the art will recognize that various modifications, combinations and changes may be made according to design conditions and factors within the scope of the appended claims or their equivalents.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and the scope of the patent claims described below as well as all scopes equivalent to or equivalently changed from the scope of the claims are within the scope of the spirit of the present invention. It will be said to belong to

10: Human body temperature check system
100: Thermal imaging camera module
110: thermal imaging camera
120: video camera
130: control unit
140: TRSM module
150: Holder
200: Administrator terminal
300: Network

Claims (7)

A thermal imaging camera that captures thermal images of objects to be photographed;
a video camera that captures an image of the photographed object; and
a control unit that calculates the body temperature of the photographed object based on the thermal image transmitted from the thermal imaging camera;
The control unit,
Receiving the thermal image from the thermal imaging camera, detecting body temperature in the facial area of the photographed object from the thermal image,
Receive the image from the video camera, calculate the distance between the photographed object and the thermal imaging camera based on the transmitted image, correct the detected body temperature based on the calculated distance, and display it on the user terminal. A human body temperature check system. According to paragraph 1,
The control unit measures the size of the face area of the photographed object in the image transmitted from the video camera, and calculates the distance between the photographed object and the thermal imaging camera based on the size of the face region. Human body fever check system. According to paragraph 2,
The control unit recognizes the face of the photographed object whose body temperature is displayed in the image transmitted from the video camera by a learning model that performs machine learning, and identifies the identity of the photographed object whose body temperature is displayed. A human body temperature check system. According to paragraph 1,
The control unit collects a reference temperature from the outside, compares the collected reference temperature with the detected body temperature, and displays the detected body temperature on the user terminal. According to paragraph 1,
A human body fever check system, wherein the control unit is based on edge computing. According to paragraph 1,
The control unit generates a fever suspicion warning event when the displayed body temperature exceeds the set range. According to clause 6,
The human body fever check system, wherein the control unit stores the photographed object whose body temperature is measured and a list of people suspected of having a fever in a database after generating the warning event.