KR20200066918A - Apparatus and method of controlling door based on non-contact measurement for body heat - Google Patents

Abstract

The present invention relates to a technique for controlling a door on the basis of contactless body temperature measurement, and relates to a technique which photographs a target visitor by using an image camera and a thermal image camera, recognizes the face of the photographed target visitor so as to identify the photographed target visitor, provides inducing information for inducing the identified target visitor to open his or her mouth, measures the core temperature of the identified target visitor from the inside of the opened mouth, determines whether or not the identified target visitor can enter or exit on the basis of at least one from among the recognized face and the measured core temperature, and controls the door on the basis of the determination on whether or not the identified target visitor can enter or exit.

Description

{APPARATUS AND METHOD OF CONTROLLING DOOR BASED ON NON-CONTACT MEASUREMENT FOR BODY HEAT}

The present invention relates to a technical idea of controlling the opening/closing state of a door based on non-contact body temperature measurement, and more specifically, controlling door operation based on face recognition and central body temperature measurement of an access target, and controlling the door interior, based on door control It relates to the prevention and infection prevention technology for the personnel located in the.

Humans are classified as constant temperature animals, and when they develop, changes in body temperature occur due to the function of the internal immune function.

Such a phenomenon may be a phenomenon commonly seen from serious infectious diseases such as MERS (Middle East Respiratory Syndrome, MERS) or SARS (Severe Acute Respiratory Syndrome, SARS).

In 2015, in the case of MERS, the failure to manage patients infected with MERS caused many people to suffer from MERS infection, resulting in high social costs.

Since then, hospitals, clinics, and postpartum care centers at all levels are controlling outpatients and visitors.

However, such a control simply limits the visiting time, and there is a problem that it cannot be prepared when an infected person enters and exits within the controlled visiting time.

Therefore, a method for measuring the body temperature of the entrant has emerged as a method of restricting access.

In particular, Korean Patent Registration No. 10-1912390 measures skin temperature using a thermal image sensor, but has a disadvantage in that it is impossible to determine a change in skin temperature due to external atmospheric temperature.

For example, when the temperature of the deep body temperature is 36.5 degrees, the body temperature may be released to the outside when the external temperature is below zero, and measured below 30 degrees. Here, the deep body temperature may also be referred to as a central body temperature.

In addition, when the external atmospheric temperature is 30 degrees, the body temperature of the skin may be measured as 36.5 degrees as no body heat is lost. Therefore, the technique proposed in Korean Patent Registration No. 10-1912390 has a disadvantage that accuracy of measurement of body temperature is not guaranteed.

On the other hand, Korean Patent Registration No. 10-1729327 proposed a method to minimize the influence of external air temperature by presenting a black body as a reference temperature to prepare for the change in air temperature.

However, since an expensive black body is used, not only does the economical burden increase, but a periodic calibration is required due to the nature of the black body.

On the other hand, Korean Patent Registration No. 10-1355946 proposes a system for measuring the accurate body temperature at a long distance by using a thermopile sensor array without using a black body to compensate for outside temperature.

However, Korean Patent Registration No. 10-1355946 composes a look-up table according to the results of clinical trials with 200 subjects to compensate for external temperature and convert skin temperature to deep body temperature. The process of converting to central body temperature is required.

This has the advantage of obtaining an accurate body temperature by providing a deep body temperature, but there is a hassle of having to conduct clinical trials to realize it. Here, the temperature value of the deep body temperature may correspond to the temperature of the central body temperature.

On the other hand, Korean Patent Publication No. 10-2011-0082282 proposes a technique for compensating for the central body temperature in consideration of the central body temperature, the surface temperature, the dermal and epidermal layers of the skin, and the atmospheric temperature.

However, there is a disadvantage that a clinical trial is required to calculate parameters related to central body temperature, surface temperature, dermal dermis and epidermal layer.

Accordingly, there is a need to propose a technique for accurately measuring the central body temperature without removing an economic burden and providing convenience in use, while performing a clinical experiment or a formal transformation to measure the central body temperature, while providing convenience in use. .

Korean Registered Patent No. 10-1912390, "Access control device and method by non-contact body heat measurement" Korean Registered Patent No. 10-1729327, "Body temperature tracking monitoring system using dual cameras" Korean Patent Publication No. 10-2013-0027890, "Non-contact temperature monitoring device" Korean Registered Patent No. 10-1355946, "Temperature measurement device and temperature measurement method using infrared array sensor" Korean Patent Publication No. 10-2011-0082282, "Center temperature detection device and method in infrared body temperature meter"

The present invention may be aimed at controlling the access of the access target by simultaneously performing identification of the access target and measuring the central body temperature.

In the present invention, by controlling the access of the access target by simultaneously performing the identification of the access target and the measurement of the central body temperature, access to the infected person in public places such as hospitals, postpartum cooking centers, kindergartens, airport immigration centers, and group food service centers where infection prevention management is required It can be aimed at controlling.

The present invention can be aimed at accurately measuring the central body temperature through the inside of the mouth of the subject.

The present invention can be aimed at accurately measuring the body temperature of the entry-exit person without correction of the measured body temperature value even in a place sensitive to the environment temperature by measuring the central body temperature through the inside of the mouth of the entry-out person.

The present invention can be aimed at accurately measuring the central body temperature without arithmetic correction of the measured body temperature by measuring the central body temperature through the inside of the mouth of the subject.

The present invention may be aimed at recognizing the face of the access target to identify the access target, and updating face information based on deep learning technology when face information of the access target does not exist.

The present invention can be intended to identify the identity of the access target based on face recognition, even if the access target does not provide separate information such as an RF-based access card or fingerprint.

The present invention can be aimed at verifying the attendance status of the access target only with the access history, even if the access target does not request a separate authentication input or attendance check.

The present invention can be aimed at preventing the unauthorized entry and exit by using an image, because the image is taken simultaneously with an image camera and a thermal imaging camera when the entry target enters and exits.

According to an embodiment of the present invention, a door control device based on non-contact body temperature measurement is a photographing unit for photographing an entry target using an image camera and a thermal imaging camera, and recognizing the face of the photographed access target to recognize the photographed access target Identification unit for identifying, guidance information providing unit for providing guidance information for inducing the identified access target to open the mouth, a body temperature measurement unit for measuring the central body temperature of the identified access target from the inside of the opened mouth and the recognition It may include a control unit for determining whether or not the identified access target can access based on at least one of the face or the measured central body temperature, and controls the door based on the determined availability.

According to an embodiment of the present invention, the door control device based on non-contact body temperature measurement may further include a storage unit that stores face information and the measured central body temperature.

The identification unit compares the recognized face with the stored face information to determine whether the recognized face is included in the stored face information in the storage unit, and when the recognized face is included in the stored face information, The photographed entry target can be identified.

When the recognized face is not included in the stored face information, the controller may control the recognized face to be included in the stored face information.

After the induction information is provided, the photographing unit may photograph the entry target again using the image camera and the thermal imaging camera.

The control unit may determine whether the re-photographed entry target is opened.

The control unit may detect a temperature change of the re-photographed access target based on the thermal image data of the re-photographed access target and determine whether the opening is based on the detected temperature change.

The controller may determine whether the opening is performed by comparing the image data of the re-entry target and the stored face information.

The controller may control to open the door when the recognized face is included in the stored face information and the measured central body temperature is included in a preset range.

The guidance information providing unit may control the speaker to provide the guidance information by voice or control a display to provide the guidance information as at least one of text or images.

The control unit may control to generate an access record of the access target and store the generated access record using the recognized face.

The body temperature measuring unit may measure the central temperature based on thermal image data on the inside of the opened mouth, and measure the surface temperature of the person entering or exiting based on the thermal image data on the recognized face.

According to an embodiment of the present invention, a method for controlling a door based on non-contact body temperature measurement comprises the steps of photographing an entry person using an image camera and a thermal image camera, and in the identification unit, the identification unit recognizes the photographed person's face The step of identifying the photographed entry and exit, in the induction information providing unit, providing the induction information for inducing the identified entry target to open the mouth, in the body temperature measurement unit, the identified from the inside of the opened mouth In the step of measuring the central body temperature of the access target and the control unit, based on at least one of the recognized face or the measured central body temperature determines whether or not the identified access target can access, based on the determined access availability It may include controlling the door.

The step of recognizing the photographed access target face and identifying the photographed access target may include comparing face information stored in the storage unit with the recognized face to determine whether the recognized face is included in the stored face information. step; And when the recognized face is included in the stored face information, identifying the photographed entry target.

According to an embodiment of the present invention, a method for controlling a door based on non-contact body temperature measurement is stored in the control unit so that when the recognized face is not included in the stored face information, the recognized face is included in the stored face information. The method may further include controlling wealth.

According to an embodiment of the present invention, a method for controlling a door based on non-contact body temperature measurement comprises re-shooting the access target using the image camera and the thermal image camera after the induction information is provided in the photographing unit and the The control unit may further include determining whether the re-photographed entry target is opened.

The step of determining whether or not the re-photographed entry target is opened includes detecting a temperature change of the re-entry entry target based on the thermal image data of the re-photographed entry target and opening the opening based on the detected temperature change. The method may include determining whether or not the opening is performed by comparing the image data of the re-entry target and the stored face information.

Determining whether or not the identified access person can enter and controlling the door based on the determined accessibility includes the recognized face included in the stored face information, and the measured central body temperature is within a preset range. If included, may include controlling to open the door.

The present invention can control the access of the access target by simultaneously performing identification of the access target and measuring the central body temperature.

In the present invention, by controlling the access of the access target by simultaneously performing the identification of the access target and the measurement of the central body temperature, access to the infected person in public places such as hospitals, postpartum cooking centers, kindergartens, airport immigration centers, and group food service centers where infection prevention management is required You can control it.

The present invention can accurately measure the central body temperature through the inside of the mouth of the subject.

According to the present invention, by measuring the central body temperature through the inside of the subject's mouth, it is possible to accurately measure the body temperature of the person subject to access without correction of the measured body temperature value even in a place sensitive to environmental temperature.

The present invention can accurately measure the central body temperature without arithmetic correction of the measured body temperature by measuring the central body temperature through the inside of the mouth of the subject.

The present invention recognizes the face of the entry target and identifies the identity of the entry target, and when face information of the entry target does not exist, the face information may be updated based on deep learning technology.

The present invention can identify the identity of the access target based on face recognition even if the access target does not provide separate information such as an RF-based access card or fingerprint.

According to the present invention, the attendance status of the access target can be checked only by the access history, even if the access target does not request a separate authentication input or attendance check.

In the present invention, when an access person enters and exits, an image camera and a thermal imaging camera simultaneously shoot, so that the access target can prevent unauthorized access by using a picture.

1 is a view for explaining the components of a door control device based on non-contact body temperature measurement according to an embodiment of the present invention.
2 to 4 are views illustrating a flowchart related to a door control method based on non-contact body temperature measurement according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are exemplified only for the purpose of illustrating the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention These can be implemented in various forms and are not limited to the embodiments described herein.

Embodiments according to the concept of the present invention can be applied to various changes and have various forms, so the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosure forms, and includes modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various components, but the components should not be limited by the terms. The above terms are only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be referred to as the second component, Similarly, the second component may also be referred to as the first component.

When an element is said to be "connected" or "connected" to another component, it is understood that other components may be directly connected to or connected to the other component, but there may be other components in between. It should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle. Expressions describing the relationship between the components, for example, "between" and "immediately between" or "directly adjacent to" should be interpreted similarly.

The terminology used herein is only used to describe specific embodiments and is not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "include" or "have" are intended to designate the presence of a feature, number, step, action, component, part, or combination thereof as described, one or more other features or numbers, It should be understood that the existence or addition possibilities of steps, actions, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined herein. Does not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. The same reference numerals in each drawing denote the same members.

1 is a view for explaining the components of a door control device based on non-contact body temperature measurement according to an embodiment of the present invention.

Referring to FIG. 1, the non-contact body temperature measurement-based door control device 100 includes a photographing unit 110, an identification unit 120, an induction information providing unit 130, a body temperature measurement unit 140, and a control unit 150. Includes.

According to an embodiment of the present invention, the photographing unit 110 may photograph the subject 1 using an image camera and a thermal imaging camera.

In one example, the imaging unit 110 may include an image camera and a thermal imaging camera.

According to an embodiment of the present invention, the photographing unit 110 may acquire at least one of an image or image of the access target 1 by imaging the exterior of the body including the face of the access target 1.

As an example, the photographing unit 110 may acquire a thermal image of the outside of the body or the inside of the subject 1. Here, the thermal image may be converted into thermal image data.

For example, the thermal imaging camera may include a thermopile sensor array and an infrared camera.

As an example, after the induction information is provided to the access target 1, the photographing unit 110 may photograph the access target 1 again using an image camera and a thermal imaging camera.

According to an embodiment of the present invention, the identification unit 120 may recognize the face of the person 1 to access to identify the identity of the person to access. Here, the recognized face can be used as an identifier, such as a face identifier.

In addition, the recognized face may include image data for an area corresponding to the face portion of the person 1 to enter or exit.

As an example, the identification unit 120 may extract only the face portion of the access target 1 from the image generated by the image camera and use it as an identifier for identifying the access target.

According to an embodiment of the present invention, the identification unit 120 compares the recognized face with the face information stored in the storage unit 160 to determine whether the face recognized by the storage unit 160 is included in the face information, When the recognized face is included in the face information, the entry target 1 can be identified. Here, the identification information of the person 1 to access can be confirmed.

As an example, the identification unit 120 may compare the recognized face image with a plurality of images included in face information to determine whether a matched face image exists.

For example, the face information may include information stored in association with the face image and the identity information.

For example, the identification information may include at least one of the age, name, gender, or position of the target person 1.

According to an embodiment of the present invention, the guidance information providing unit 130 may provide guidance information that induces the subject 1 to open the mouth.

In one example, the guidance information providing unit 130 includes a display and a speaker, and controls the speaker to provide guidance information by voice, or controls the display to provide guidance information to at least one of text or images.

According to an embodiment of the present invention, the guidance information providing unit 130 provides a voice that induces an entry target to open a mouth for more than 1 second, and provides instructions and precautions using text or video on the display. have. Here, the instructions and precautions may be arbitrarily set by the user.

According to an embodiment of the present invention, the body temperature measuring unit 140 may measure the central body temperature of the person entering and exiting from the inside of the opened mouth based on the guidance information.

For example, the body temperature measuring unit 140 may measure the central temperature based on the thermal image data for the inside of the opened mouth, and measure the surface temperature of the person entering or exiting based on the thermal image data for the recognized face. .

For example, the central temperature may represent a temperature measured in an area located inside the human body and relatively unaffected by external environmental changes.

In addition, the surface temperature may represent a temperature measured in a region that is located outside in the human body and is relatively affected by external environmental changes.

For example, the interior of the body may correspond to an oral cavity of a person, and the exterior of the body may correspond to a human face.

As an example, the body temperature measuring unit 140 may analyze the thermal image data or the thermal image to measure the central body temperature or the surface body temperature of the person 1 to be entered in a non-contact manner.

According to an embodiment of the present invention, the body temperature measurement unit 140 acquires a thermal image of the subject 1, converts the obtained thermal image into thermal image data, and recognizes the face based on the thermal image data. It can be measured by dividing the region, measuring body temperature for each region of the divided face, and classifying the center temperature and the surface temperature based on the body temperature measured for each region.

Therefore, the present invention can accurately measure the central body temperature through the inside of the mouth of the subject.

In addition, the present invention can accurately measure the body temperature of the entry-exit person without correction of the measured body temperature value even in a place sensitive to the environment temperature by measuring the central body temperature through the inside of the entrance-entry mouth.

In addition, the present invention can accurately measure the central body temperature without arithmetic correction of the measured body temperature as the central body temperature is measured through the inside of the mouth of the subject.

According to an embodiment of the present invention, the control unit 150 includes a photographing unit 110, an identification unit 120, a guide information providing unit 130, a body temperature measuring unit 140, a storage unit 160, and a door 170 ) Can be controlled.

The control unit 150 may include a processor, a central processing unit, an application processor, or a communication processor.

For example, the controller 150 may perform calculation or data processing related to control and/or communication of at least one other component of the door control device 100 based on non-contact body temperature measurement.

For example, the control unit 150 may control a plurality of hardware or software components connected to the control unit 150 by driving an operating system or an application program, and perform various data processing and calculations.

For example, the control unit 150 may be implemented as a system on chip (SOC). The controller 150 may load and process a command or data received from at least one of other components (eg, non-volatile memory) into a volatile memory, and store the result data in a non-volatile memory.

According to an embodiment of the present invention, the control unit 150 determines whether or not the access target 1 can enter or exit based on at least one of the recognized face or the measured central body temperature, and the access door 170 based on whether or not access is possible Can be controlled.

For example, when the recognized face is not included in the face information stored in the storage 160, the controller 150 may control the recognized face to be included in the face information.

That is, if the currently recognized face is not identified in the storage 160, the controller 150 may include the currently recognized ear as face data as new data.

In addition, if the currently recognized face is not identified in the storage 160 using a deep learning algorithm, the controller 150 includes the currently recognized ear as new data in the face information, and stores The face information stored in advance in 160 may be updated.

Therefore, the present invention can recognize the face of the access target by recognizing the face of the access target, and when face information of the access target does not exist, the face information may be updated based on deep learning technology.

According to an embodiment of the present invention, the control unit 150 detects a temperature change of the access target 1 based on the thermal image data of the access target 1 photographed again through the photographing unit 110 and changes the temperature. Based on this, it is possible to determine whether or not the entry target 1 is opened.

That is, the control unit 150 may compare the thermal image data previously photographed with the thermal image data re-photographed to determine whether the subject 1 is opened or not based on whether an area where the temperature rises or falls. .

For example, the controller 150 may compare the image data of the re-photographed entry target 1 and an image of a previously photographed face to determine whether the entry target 1 is opened.

According to an embodiment of the present invention, the controller 150 may control the door 170 to be opened when the recognized face is included in the stored face information and the central body temperature is included in a preset range.

Here, the preset range may be set according to a season, age, or gender-related normal body temperature range, and the normal body temperature range may be adjusted based on the recognized face.

Accordingly, the present invention can control the access of the access target by simultaneously performing the identification of the access target 1 and the measurement of the central body temperature.

In addition, the present invention is to control the entrance and exit of the person by simultaneously performing the identification of the target person (1) and the measurement of the central body temperature, and in public places such as hospitals, postpartum cooks, kindergartens, airport immigration offices, group meals, etc. Can control the access of infected people in advance.

For example, the door control device 100 based on non-contact body temperature measurement recognizes the face of the access target 1, checks the associated data of the access target 1 based on the recognized face, and is based on the confirmed data Thus, the gender and age are identified, and after a preset range is adjusted based on the identified gender and age, the door 170 may be applied as an open condition. Further, the preset range may be arbitrarily adjusted by the user.

For example, the control unit 150 may control to generate an access record of the access target 1 using the recognized face, and to store the access record in the storage 160.

For example, the control unit 150 may control the door control device 100 based on non-contact body temperature measurement to perform the procedures illustrated in FIGS. 2 to 4 below.

Therefore, the door control device 110 based on the non-contact body temperature measurement according to an embodiment of the present invention acquires the identification information of the access target 1 when the recognized face is face information stored in the storage 160. Based on the acquired identity information, it is possible to manage the work history of the access person 1 by recording the time when the face of the person 1 is recognized on the work list.

That is, according to the present invention, even if the access target 1 does not request a separate authentication input or check for work, it is possible to check the attendance status of the access target 1 only with the access history.

In addition, according to the present invention, when the access target 1 enters and exits, an image camera and a thermal imaging camera simultaneously shoot, so that the access target 1 can prevent unauthorized entry and exit using photographs.

According to another embodiment of the present invention, the door control device 100 based on non-contact body temperature measurement may further include a storage unit 160 and a door 170.

In one example, the storage 160 may store at least one of face information, central body temperature, and surface body temperature.

For example, the face information may be combined information in which face image data and personal information data are combined.

For example, the storage 160 may combine and store face information and body temperature information.

The storage unit 160 may store data such as a basic program, an application program, and setting information for performing the operation of the door control device 100 based on non-contact body temperature measurement.

In particular, the storage 160 may store at least one instruction set (eg, an application) for managing data according to various embodiments. The storage 160 may provide stored data at the request of the control unit 150.

The storage 160 may include volatile and/or nonvolatile memory. The storage 160 may store commands or data related to at least one other component of the door control device 100 based on non-contact body temperature measurement.

At least one instruction set stored in the storage unit 160 may be executed by the control unit 150. Then, the storage 160 may provide the stored data at the request of the controller 150.

The storage unit 160 is included in the non-contact body temperature measurement-based door control device 100, and may be referred to as “internal storage” or “internal storage”.

For example, the entrance door 170 may include at least one of a glass door, an iron door, and an automatic door for controlling access.

2 is a view for explaining a flowchart related to a door control method based on non-contact body temperature measurement according to an embodiment of the present invention.

More specifically, FIG. 2 illustrates a procedure in which a door control method based on non-contact body temperature measurement according to an embodiment of the present invention controls a door based on face recognition and central body temperature measurement.

Referring to FIG. 2, in step 201, a method of controlling a door based on non-contact body temperature measurement photographs a person who is entering or exiting.

That is, the door control method based on the non-contact body temperature measurement may take a picture of an entry person using an image camera and a thermal imaging camera.

Accordingly, the door control method based on non-contact body temperature measurement may acquire image data of an access target based on an image camera, and acquire thermal image data of an access target based on a thermal imaging camera. Here, the thermal image data may correspond to the surface temperature of the entry and exit.

In step 202, the door control method based on non-contact body temperature measurement identifies an entry target.

That is, in the door control method based on non-contact body temperature measurement, a face image corresponding to a face area is extracted from the image data of the access target, and the face is recognized, and the recognized face and face information stored in the storage unit are compared to identify the access target. Can. At this time, the door control method based on non-contact body temperature measurement may use a deep learning algorithm when identifying an access target.

In addition, the door control method based on non-contact body temperature measurement may perform a procedure of updating face information when the recognized face is not included in the face information stored in the storage unit, and the procedure is further described in the description of FIG. 3. Do it.

In step 203, the door control method based on non-contact body temperature measurement provides guidance information.

That is, the door control method based on non-contact body temperature measurement may provide guidance information that induces an entrance target to open a mouth.

Here, the guidance information may be provided by voice through a speaker or text or video through a display.

In step 204, the door control method based on non-contact body temperature measurement measures the central body temperature.

That is, the door control method based on non-contact body temperature measurement may acquire thermal image data about the inside of the mouth of the subject and analyze the obtained thermal image data to measure the central body temperature of the subject.

In addition, the door control method based on non-contact body temperature measurement may additionally perform a step of confirming whether or not the mouth of the access target is opened, and a procedure for confirming whether the target of the access target is opened is further described in the description of FIG. 4. do.

In step 205, the door control method based on the non-contact body temperature measurement determines whether or not an entry target can enter or exit.

That is, in the door control method based on the non-contact body temperature measurement, it is possible to determine whether or not an entry target can enter or exit using at least one of the recognized face or the measured central body temperature.

For example, the door control method based on non-contact body temperature measurement determines whether a person to access is allowed based on whether the recognized face is included in face information stored in the storage unit and whether the measured central body temperature is included in a preset range. can do.

For example, if the door access control method based on the non-contact body temperature measurement determines that the entry target is accessible, the process proceeds to step 206, and when the entry target determines that access is impossible, the procedure may be terminated.

In step 206, the door control method based on non-contact body temperature measurement opens the door and ends the corresponding procedure.

3 is a view for explaining a flowchart related to a door control method based on non-contact body temperature measurement according to an embodiment of the present invention.

More specifically, Figure 3 is a non-contact body temperature measurement-based door control method according to an embodiment of the present invention recognizes the face of the entry target, and determines whether the recognized face is included in the face information to update the face information Illustrates the procedure.

Referring to FIG. 3, in step 301, the method for controlling a door based on non-contact body temperature measurement recognizes the face of the person entering and exiting by photographing the object.

That is, in the door control method based on non-contact body temperature measurement, an image subject and an imager may be photographed using an image camera and a thermal imaging camera, and the face of the subject may be recognized based on the photographed image.

In step 302, the door control method based on non-contact body temperature measurement may determine whether the recognized face is included in the face information of the storage unit.

That is, the door control method based on non-contact body temperature measurement compares the image data corresponding to the recognized face with the image data included in the face information stored in the storage unit, and compares the image data corresponding to the recognized face with the image data of the face information. It can be determined whether or not it matches.

In addition, the door control method based on non-contact body temperature measurement may proceed to step 303 when the recognized face is included in the face information of the storage unit, and may proceed to step 304 if not included.

In step 303, the door control method based on non-contact body temperature measurement identifies an entry target based on the recognized face.

That is, in the door control method based on the non-contact body temperature measurement, when the recognized face is included in the face information of the storage unit, the identity of the access target may be identified based on the identity data included in the face information.

Here, the recognized face may be used as a face ID or face identifier. Therefore, the entry target can reduce the hassle of owning or carrying a separate access authentication device.

In addition, the present invention can identify the identity of the access target based on face recognition, even if the access target does not provide separate information such as an RF-based access card or fingerprint.

In step 304, the method for controlling a door based on non-contact body temperature measurement may be controlled to include the recognized face in face information.

That is, the door control method based on non-contact body temperature measurement may store the recognized face in the storage unit, and control the recognized face to be included in the face information.

4 is a view for explaining a flowchart related to a door control method based on non-contact body temperature measurement according to an embodiment of the present invention.

More specifically, FIG. 4 illustrates a procedure for measuring the central body temperature of an access target after providing the induction information in the door control method based on the non-contact body temperature measurement according to an embodiment of the present invention.

Referring to FIG. 4, in step 401, a method for controlling a door based on non-contact body temperature measurement provides guidance information.

That is, the door control method based on non-contact body temperature measurement may provide guidance information that induces an entrance target to open a mouth.

In addition, the door control method based on non-contact body temperature measurement may provide guidance information by voice by controlling a speaker or control display and provide guidance information by at least one of text or images.

In step 402, the door control method based on non-contact body temperature measurement re-takes the subject.

That is, the door control method based on non-contact body temperature measurement may additionally acquire image data and thermal image data of the subject by re-taking the subject by using the image camera and the thermal image camera.

In step 403, the door control method based on non-contact body temperature measurement may determine whether a person's face changes.

That is, in the door control method based on non-contact body temperature measurement, it is possible to detect a change in the face of an access person by comparing image data obtained by re-shooting with image data acquired for the first time.

For example, the door control method based on non-contact body temperature measurement may detect a change in the image of the mouth part of the face of the person entering and exiting.

In addition, the door control method based on non-contact body temperature measurement proceeds to step 404 when it detects a change in the face of an access target, and if it does not detect the change, ends the corresponding procedure or provides guidance information again. .

In step 404, the door control method based on the non-contact body temperature measurement detects a change in body temperature of the access target.

That is, the door control method based on the non-contact body temperature measurement may detect a change in body temperature of a person entering or exiting by comparing the previously obtained thermal image data with the thermal image data obtained through re-photography.

For example, a door control method based on non-contact body temperature measurement may detect a change in body temperature in the mouth of a person's face.

In addition, the door control method based on the non-contact body temperature measurement may proceed to step 405 when detecting a change in body temperature of an access target, and if the change is not detected, terminate the corresponding procedure or provide guidance information again.

According to another embodiment, the method for controlling a door based on non-contact body temperature measurement may be performed by changing the order of steps 403 and 404.

In step 405, the door control method based on the non-contact body temperature measurement measures the central body temperature of the access target.

That is, in the door control method based on non-contact body temperature measurement, it is determined that the entrance subject has opened the mouth based on the induction information, and the central body temperature of the access subject can be measured based on the thermal image data obtained through re-shooting.

Here, the central body temperature may also be referred to as a deep body temperature, and may correspond to a body temperature measured in a relatively low-influenced area from the external environment among the body parts of the subject.

Therefore, the present invention does not additionally require expensive equipment, such as a black body , to measure the central body temperature of an entry person.

The device described above may be implemented with hardware components, software components, and/or combinations of hardware components and software components. For example, the devices and components described in the embodiments include, for example, processors, controllers, arithmetic logic units (ALUs), digital signal processors (micro signal processors), microcomputers, field programmable arrays (FPAs), It may be implemented using one or more general purpose computers or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may run an operating system (OS) and one or more software applications running on the operating system. In addition, the processing device may access, store, manipulate, process, and generate data in response to the execution of the software. For convenience of understanding, a processing device may be described as one being used, but a person having ordinary skill in the art, the processing device may include a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that may include. For example, the processing device may include a plurality of processors or a processor and a controller. In addition, other processing configurations, such as parallel processors, are possible.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments or may be known and usable by those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic media such as floptical disks. Includes hardware devices specifically configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language code that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler. The hardware device described above may be configured to operate with one or more software modules to perform the operations of the embodiments, and vice versa.

The software may include a computer program, code, instruction, or a combination of one or more of these, and configure the processing device to operate as desired, or process independently or collectively You can command the device. Software and/or data may be interpreted by a processing device, or to provide instructions or data to a processing device, of any type of machine, component, physical device, virtual equipment, computer storage medium or device. , Or may be permanently or temporarily embodied in the transmitted signal wave. The software may be distributed over networked computer systems, and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

Although the embodiments have been described by the limited drawings as described above, a person skilled in the art can make various modifications and variations from the above description. For example, the described techniques are performed in a different order than the described method, and/or the components of the described system, structure, device, circuit, etc. are combined or combined in a different form from the described method, or other components Alternatively, even if substituted or substituted by equivalents, appropriate results can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

1: Entry target
100: door control device based on non-contact body temperature measurement
110: photographing unit 120: identification unit
130: induction information providing unit 140: body temperature measurement unit
150: control unit 160: storage unit
170: door

Claims (16)

A photographing unit for photographing an entry target using an image camera and a thermal imaging camera;
An identification unit for recognizing the photographed entry target and recognizing the photographed entry target;
A guiding information providing unit that provides guiding information to induce opening of the mouth to the identified access target;
A body temperature measurement unit for measuring a central body temperature of the identified entry/exit person from the inside of the opened mouth; And
And a controller configured to determine whether or not the identified access target can enter or exit based on at least one of the recognized face or the measured central body temperature, and control an access door based on the determined accessibility.
Door control device based on non-contact body temperature measurement. According to claim 1,
Further comprising a storage unit for storing the face information and the measured central body temperature,
The identification unit compares the recognized face with the stored face information to determine whether the recognized face is included in the stored face information in the storage unit, and when the recognized face is included in the stored face information, To identify the photographed entry target
Door control device based on non-contact body temperature measurement. According to claim 2,
When the recognized face is not included in the stored face information, the controller controls the recognized face to be included in the stored face information.
Door control device based on non-contact body temperature measurement. According to claim 2,
After the induction information is provided, the photographing unit photographs the entry target again using the image camera and the thermal image camera,
The control unit determines whether the re-photographed entry target is opened or not
Door control device based on non-contact body temperature measurement. The method of claim 4,
The control unit detects a temperature change of the re-photographed access target based on the thermal image data of the re-photographed access target and determines whether the opening is based on the detected temperature change
Door control device based on non-contact body temperature measurement. The method of claim 4,
The control unit determines whether the opening is performed by comparing image data of the re-entry target and the stored face information
Door control device based on non-contact body temperature measurement. According to claim 2,
The control unit controls to open the door when the recognized face is included in the stored face information and the measured central body temperature is included in a preset range.
Door control device based on non-contact body temperature measurement. According to claim 1,
The guidance information providing unit controls the speaker to provide the guidance information by voice or a display to provide the guidance information as at least one of text or images.
Door control device based on non-contact body temperature measurement. According to claim 1,
The control unit controls to generate an access record of the access target and store the generated access record using the recognized face
Door control device based on non-contact body temperature measurement. According to claim 1,
The body temperature measuring unit measures the central temperature based on the thermal image data for the inside of the opened mouth, and measures the surface temperature of the person entering and exiting based on the thermal image data for the recognized face.
Door control device based on non-contact body temperature measurement. In the photographing unit, using the image camera and a thermal imaging camera to shoot the entry target;
In the identification unit, recognizing the face of the photographed entry target to identify the photographed entry target;
In the guidance information providing unit, providing guidance information for inducing the identified entry target to open the mouth;
In the body temperature measuring unit, measuring the central body temperature of the identified entry and exit from the inside of the opened mouth; And
The control unit, based on at least one of the recognized face or the measured central body temperature and determines whether the access of the identified access target, and comprising the step of controlling the access door based on the determined accessibility
Door control method based on non-contact body temperature measurement. The method of claim 11,
The step of recognizing the photographed entry target by recognizing the photographed entry target face
Comparing the face information stored in the storage unit with the recognized face to determine whether the recognized face is included in the stored face information; And
And when the recognized face is included in the stored face information, identifying the photographed entry target.
Door control method based on non-contact body temperature measurement. The method of claim 12,
In the control unit, when the recognized face is not included in the stored face information, further comprising controlling the storage unit so that the recognized face is included in the stored face information
Door control method based on non-contact body temperature measurement. The method of claim 12,
In the photographing unit, after the induction information is provided, photographing the entry target again using the image camera and the thermal imaging camera; And
In the control unit, further comprising the step of determining whether the re-photographed entry target opening
Door control method based on non-contact body temperature measurement. The method of claim 14,
The step of determining whether the re-photographed entry target is opened is
Detecting a temperature change of the re-photographed access subject based on the thermal image data of the re-photographed access subject and determining whether the opening is based on the detected temperature change; And
And comparing the image data of the re-entry target and the stored face information to determine whether or not the opening is performed.
Door control method based on non-contact body temperature measurement. The method of claim 12,
Determining whether or not the identified access target person is allowed to access, and controlling the door based on the determined accessibility,
And when the recognized face is included in the stored face information and the measured central body temperature is included in a preset range, controlling to open the door.
Door control method based on non-contact body temperature measurement.

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