JP2022024848A - Certificate issuance system and method for issuing certificate - Google Patents

Abstract

To provide a certificate issuance system that can remove the necessity that one person measures the body temperature repeatedly.SOLUTION: The certificate issuance system includes: an imaging device 110; a thermal camera 120; a temperature measuring unit for measuring a body temperature on the basis of a thermal image acquired by the thermal camera 120; a time counting unit for outputting the date when the temperature measuring unit measured the body temperature; and an output device 300 for outputting information on the relations of the value of the body temperature measured by the temperature measuring unit, the date acquired by the time counting unit, and a facial image imaged by the imaging device 110 to a portable recording medium.SELECTED DRAWING: Figure 1

Description

The present invention relates to a certification issuing system and a certification issuing method for outputting the temperature of a face.

A system for diagnosing the health condition of a living body by measuring the body temperature of a living body such as a human or an animal is known. For example, in order to control the spread of infection with pathogens such as viruses and bacteria, systems for diagnosing the health condition of living organisms may be used at the gates of facilities such as airports, factories, stores and offices.

The diseased body detection device described in Patent Document 1 is a thermography device that captures a thermal image that is a distribution image of the body surface temperature of a subject, and a body temperature that measures the body temperature of the subject based on the captured thermal image. Including measuring means. Further, this disease detection device includes a heart rate measuring means and a respiratory rate measuring means.

Patent Document 2 discloses an entry / exit control device with a skin surface temperature recording function including a thermography device and a non-contact IC card reader. This entry / exit control device is equipped with a CCD camera capable of recording a facial photograph. When the person's IC card is brought close to the non-contact IC card reader, the device starts measuring the facial skin temperature and identifies the person infected with influenza due to fever. This device quickly measures and records the skin surface temperature and records the entry / exit time. As a result, it is said that this device can be used as a preventive measure against the spread of influenza for people entering and leaving factories and offices.

JP-A-2009-172176 Utility model registration No. 3160292 JP 2012-231309

In Patent Document 2, the entry / exit person brings the IC card close to the non-contact reader, and the measurement of the facial skin temperature is started. However, if the condition for passing through the gate of the facility is normal body temperature, it is necessary to measure the body temperature every time the same person passes through the gate of the facility. If a normal person measures the body temperature every time he / she passes through the gate, a line will be formed at the gate of the entrance / exit, and the computational resources or recording resources of the computer will be wasted.

Therefore, the present invention provides a certification issuance system and a certification issuance method that can eliminate the need for the same person to measure body temperature many times.

The certification issuance system according to one aspect outputs an image pickup device, a thermal camera, a temperature measuring unit that measures body temperature based on a thermal image acquired by the thermal camera, and a date on which body temperature is measured by the temperature measuring unit. Information linked to the time measuring unit, the body temperature value measured by the temperature measuring unit, the date acquired by the measuring unit, and the face image captured by the imaging device is stored in a portable recording medium. It has an output device for outputting.

According to a preferred embodiment, the portable recording medium is paper or a card.

According to a preferred embodiment, the timekeeping unit is configured to output the date and time measured by the temperature measuring unit, and the output device outputs both the date and time measured by the temperature measuring unit. It is composed.

According to a preferred embodiment, the certification issuing system has a face detection unit that detects a face from an image acquired by the image pickup device, and the temperature measurement unit uses the face detection by the face detection unit as a trigger. Start measuring body temperature.

According to a preferred embodiment, the certification issuing system has a memory for storing an image of a face detected by the face detection unit, and the face detected by the face detection unit has already been detected by a predetermined period of time. If so, the output device is configured not to output the information to a portable recording medium.

According to a preferred embodiment, the certification issuing system automatically erases at least the memory for storing the information and the information stored in the memory for a specified period after the specified period has elapsed. With a part.

According to a preferred embodiment, the certification issuing system authenticates the face detected by the face detection unit by comparing the face image detected by the face detection unit with the face image stored in advance. It has a certification unit.

According to a preferred embodiment, the output device is installed together with the image pickup device and the thermal camera.

In the certification issuing method according to one aspect, a temperature measurement step in which a computer measures a body temperature based on a thermal image acquired by a thermal camera, a time measurement step for outputting a date measured by the temperature measurement step, and a temperature measurement step. The output step of outputting the information associated with the body temperature measured by the above-mentioned measuring step, the date output by the timing step, and the face image captured by the image pickup device to a portable recording medium is executed.

According to the above aspect, it is possible to omit the need for the same person to measure the body temperature many times.

It is a schematic diagram of the certification issuing apparatus in one Embodiment. It is a figure which shows the internal structure example of a temperature measuring apparatus. It is a figure which shows the internal configuration example of the management server. It is a schematic diagram which shows the recording medium output from an output device.

Hereinafter, embodiments of the present disclosure will be described. The embodiments described below do not limit the inventions described in the claims. Moreover, not all of the configurations described in the present embodiment are essential constituent requirements of the present disclosure.

FIG. 1 is a schematic diagram of a certification issuing device according to an embodiment. FIG. 2 is a diagram showing an example of the internal configuration of the temperature measuring device. FIG. 3 is a diagram showing an example of the internal configuration of the management server. FIG. 4 is a schematic diagram showing a recording medium output from the output device.

In one embodiment, the certification issuing system includes a temperature measuring device 100, a relay device 200, an output device 300, and a management server 400.

The body temperature measuring device 100 may include an image pickup device 110, a thermal camera 120, and a display device 130. The image pickup apparatus 110 may be a camera that outputs an image (visible image) by imaging the target area with visible light. The camera may be capable of capturing moving images or still images. Here, the moving image is composed of a large number of images acquired intermittently at predetermined time intervals.

The thermal camera 120 is a device capable of outputting a thermal image. For example, the thermal camera 120 may detect infrared rays in the target area and output a thermal image of the target area. In the thermal camera 120, a plurality of infrared detection units for detecting infrared rays radiated from the target area are arranged two-dimensionally. As a result, the thermal camera 120 can detect an object or an infrared ray emitted from an object existing in the target area.

The display device 130 may be configured to display a visible image and / or a thermal image output from the image pickup device 110 and / or the thermal camera 120. The body temperature measuring device 100 may be configured so that which of the visible image and the thermal image is displayed on the display device 130 can be changed by setting. The type of the display device 130 is not particularly limited as long as it can display a visible image and / or a thermal image. In one example, the display device 130 may be a liquid crystal panel, an organic EL panel, or the like.

The thermal image is displayed in color, density, luminance, etc. according to the intensity of infrared rays received by the element of the thermal camera 120. For example, if the temperature of the infrared radiation source is high, a warm color such as red is displayed, and if the temperature of the radiation source is low, a cold color such as blue is displayed. Also, if the temperature of the infrared source is high, light gray may be displayed, and if the temperature of the source is low, dark gray may be displayed.

The thermal camera 120 is arranged so that the image pickup area of the thermal camera 120 overlaps with the image pickup area of the image pickup apparatus 110. As a result, the body temperature measuring device 100 can image the same area by both the image pickup device 110 and the thermal camera 120.

The body temperature measuring device 100 may have a time measuring unit 150 that outputs a date or time. The timekeeping unit 150 outputs the current date and time at the request of the control unit 140.

The body temperature measuring device 100 may have a control unit 140 for controlling each element of the body temperature measuring device 100 and for processing and storing various data. The control unit 140 may include a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory).

The CPU is an arithmetic unit that controls the body temperature measuring device 100. The ROM stores programs and the like that realize various processes by the CPU. The RAM stores data necessary for various processes by the CPU.

The control unit 140 may include a face detection unit 142 and a temperature measurement unit 144. The face detection unit 142 detects a human face from the image acquired by the image pickup device 110. The face detection unit 142 may detect whether or not a human face is present in the image. Such face detection can be performed by any known image processing technique. In addition, the face detection unit 142 extracts the detected face region in the visible image.

The temperature measuring unit 144 is configured to measure the body temperature based on the thermal image acquired by the thermal camera 120. Specifically, the temperature measuring unit 144 measures the temperature of a portion of the thermal image corresponding to the face region detected by the face detecting unit 142.

The temperature measuring unit 144 may determine the body temperature according to the intensity of infrared rays in a characteristic portion of the facial region in the thermal image. Alternatively, the highest temperature in the facial area in the thermal image may be determined as body temperature.

Further, the temperature acquired by the thermal camera 120 corresponds to the surface temperature of the skin. Therefore, the temperature measuring unit 144 may estimate the temperature inside the human body from the acquired surface temperature and output the estimated temperature inside the body. Here, since there is a correlation between the surface temperature of the skin and the temperature inside the body, the temperature inside the body can be easily estimated from the surface temperature of the skin by conducting an experiment in advance.

The body temperature measuring device 100 may have a communication unit 160 for communicating with other devices. In the present embodiment, the communication unit 160 communicates with the output device 300 and the management server 400 via the relay device 200. The body temperature measuring device 100 may be configured to be able to communicate with the relay device 200, for example, by wire or wirelessly. The wireless communication is not particularly limited, but may be, for example, short-range wireless communication. The management server 400 may be configured to be communicable by a communication network such as the Internet.

The relay device 200 may have a control unit for controlling each element of the relay device 200 and processing various data. The control unit may include a CPU, ROM and RAM. The CPU is an arithmetic unit that controls the relay device 200. The ROM stores programs and the like that realize various processes by the CPU. The RAM stores data necessary for various processes by the CPU.

The output device 300 outputs information in which the body temperature measured by the temperature measuring unit 144, the date output by the time measuring unit, and the image captured by the imaging device 110 are associated with each other on a portable recording medium. It is configured as. Here, the portable recording medium is not particularly limited, but may be preferably paper or a card. The type of the output device 300 is not particularly limited as long as it can output the above-mentioned information. The output device 300 may be configured by, for example, a thermal printer, an inkjet printer, or the like.

The output device 300 is placed together with the temperature measuring device 100, specifically, the image pickup device 110 and the thermal camera 120. That is, the output device 300 is placed in the same place as the image pickup device 110 and the thermal camera 120, and outputs the above-mentioned information on the spot.

The management server 400 may include a control unit 410, a display device 420, and a communication unit 430. The management server 400 stores and manages the data received via the communication unit 430. The control unit 410 may include a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory).

The management server 400 may have a face recognition unit 412. The face recognition unit 412 authenticates the face detected by the face detection unit 142 by comparing the face image detected by the face detection unit 142 with the face image stored in advance.

For example, the management server 400 may store a person's face image, a person's name, an ID number of the person, and the like in association with each other. For example, in a group such as a company, the ID number may be an employee number or the like.

In this case, the face recognition unit 412 can determine whether or not the image of the face detected by the face detection unit 142 matches the information of the person stored in advance. When the image of the face detected by the face detection unit 142 matches the information of the person stored in advance, the management server 400 may transmit information such as the name and ID number of the person to the relay device 200. .. In this case, the output device 300 described above can output information such as the name and ID number of the authenticated person to a portable recording medium in addition to the body temperature measured by the temperature measuring unit 144.

Face recognition by the face recognition unit 412 can be performed by any known technique. Face recognition can be performed, for example, by an image recognition technique using machine learning using a neural network.

In the present embodiment, the face recognition unit 412 is provided on the management server 400. Instead, the face recognition unit 412 may be provided in the body temperature measuring device 100. In this case, information such as a person's face image and name to be stored in advance may be stored in the memory of the body temperature measuring device 100.

The display device 420 of the management server 400 may be capable of displaying an image acquired by the image pickup device 110 or a thermal image acquired by the thermal camera 120. In this case, the person using the management server 400 can remotely monitor the image acquired by the image pickup apparatus 110 and the thermal image acquired by the thermal camera 120.

Next, an example of the processing flow of the certification issuance method by the certification issuance system will be described. The image pickup apparatus 110 and the thermal camera 120 may always image the shooting area in the shooting mode. The image pickup area of the image pickup apparatus 110 and the image pickup area of the thermal camera 120 overlap.

The face detection unit 142 detects whether or not a face image is present in the image acquired from the image pickup device 110 (face detection step). When the face detection unit 142 detects a face, the temperature measurement unit 144 measures the body temperature corresponding to the face portion detected by the face detection unit 142 based on the thermal image acquired by the thermal camera 120 (temperature measurement step). ). In this way, the temperature measuring unit 144 starts measuring the body temperature by using the face detection by the face detecting unit 142 as a trigger. At this time, the control unit 140 requests the timekeeping unit 150 to output the date and time. As a result, the timekeeping unit 150 outputs the date and time when the body temperature is measured (timekeeping step).

The body temperature measuring device 100 transmits the imaged data by the image pickup device 110, the image pickup data by the thermal camera 120, the body temperature value measured by the temperature measuring unit 144, and information such as the date and time when the body temperature is measured via the relay device 200. It is transmitted to the output device 300 and the management server 400.

The management server 400 stores in a memory information in which the value of the body temperature measured by the temperature measuring unit 144, the date and time acquired by the time measuring unit 150, and the face image captured by the imaging device 110 are associated with each other. do. The memory stores the information for a specified period of time. The management server 400 may have an erasing unit that automatically erases the information stored in the memory after a lapse of a predetermined period. As a result, it is possible to secure a storable area of the memory and suppress long-term storage of personal information. This specified period may be configured to be changeable by setting by the user.

Further, the management server 400 performs the above-mentioned face authentication based on the face image acquired by the image pickup apparatus 110, if necessary (face authentication step). When the image of the face detected by the face detection unit 142 matches the information of the person stored in advance, the management server 400 transmits information such as the name and ID number of the person to the relay device 200.

The output device 300 is a portable recording medium that links information of the body temperature value measured by the temperature measuring unit 144, the date output by the time measuring unit 150, and the face image captured by the imaging device 110. Output to (output step). Preferably, the output device 300 is configured to output both the date and time output by the timekeeping unit 150 (see also FIG. 4).

When face recognition is performed, the output device 300 may output information such as the person's name and ID number to a portable recording medium in addition to the above information. For example, in the example shown in FIG. 4, information such as a person's name and ID number may be displayed in the column displayed as "No. GUEST".

At least the face image, the value of the body temperature of the person corresponding to the face image, and the date and time when the body temperature is measured are displayed on the portable recording medium. A person who has measured body temperature does not need to measure body temperature again if he / she has this portable recording medium. That is, a person who has once measured the body temperature may show the above-mentioned portable recording medium as a certificate at the gate of the facility or the like. Since the image of the face is output on the portable recording medium, the person presented with the recording medium can easily authenticate the person. Further, since the date and time when the body temperature is measured are output to the portable recording medium, it is possible to ensure the reliability of the current physical condition.

In the face detection step described above, the following processing may be performed as necessary. First, when the face detection unit 142 detects a face, the memory of the control unit 140 temporarily stores the image of the face detected by the face detection unit 142. If the face detected by the face detection unit 142 has already been detected by a predetermined period of time, the temperature measurement step and the output step described above are not performed. As a result, it is possible to prevent the body temperature measurement and the output of the proof from being duplicated for the same person.

The above-mentioned predetermined period may be set according to the period for preventing duplication of body temperature measurement and proof output for the same person. For example, if it is sufficient for the measurement to be performed once on the same day, the predetermined period may be, for example, 24 hours. Further, when it is desired to prevent a plurality of certificates from being output when the face is continuously detected by the image pickup apparatus 110, the predetermined period described above may be, for example, in the range of 10 seconds to 60 seconds.

As mentioned above, although the content of the invention has been disclosed through embodiments, the statements and drawings that form part of this disclosure should not be understood to limit the invention. This disclosure reveals to those skilled in the art various alternative embodiments, examples and operational techniques. Therefore, the technical scope of the present invention is defined only by the matters specifying the invention relating to the reasonable claims from the above description.

For example, in FIG. 4, the face image, body temperature, date, and time are output on a portable recording medium (paper). In addition to this, coupons and the like that can be used in stores may be displayed on the portable recording medium. Further, another additional information may be output to the portable recording medium. For example, arbitrary character information may be output as shown in the lowermost part of FIG. Such additional information may be output by being set by the administrator of the certification issuing system from the management server.

Further, the QR code (registered trademark) may be output on a portable recording medium (paper). In this case, the QR code (registered trademark) may be a code that can be read by a mobile terminal or the like to access a web page on which the above-mentioned information such as a face image, body temperature, date, and time is posted.

100 Temperature measuring device 110 Imaging device 120 Thermal camera 130 Display device 200 Relay device 300 Output device 400 Management server

Claims (9)

Imaging device and
With a thermal camera
A temperature measuring unit that measures body temperature based on the thermal image acquired by the thermal camera, and
A timekeeping unit that outputs the date when the body temperature was measured by the temperature measurement unit, and
An output device that outputs information linking the body temperature value measured by the temperature measuring unit, the date acquired by the time measuring unit, and the face image captured by the imaging device to a portable recording medium. And, with a certification issuance system. The certification issuing system according to claim 1, wherein the portable recording medium is paper or a card. The timekeeping unit is configured to output the date and time measured by the temperature measuring unit.
The certification issuing system according to claim 1 or 2, wherein the output device is configured to output both a date and a time measured by the temperature measuring unit. It has a face detection unit that detects a face from an image acquired by the image pickup device, and has a face detection unit.
The certification issuing system according to any one of claims 1 to 3, wherein the temperature measuring unit starts measuring body temperature by using the face detection by the face detecting unit as a trigger. It has a memory for storing a face image detected by the face detection unit, and has a memory.
The fourth aspect of claim 4, wherein the output device is configured not to output the information to a portable recording medium when the face detected by the face detection unit has already been detected by a predetermined period of time. Certificate issuance system. A memory that stores at least the above information for a specified period of time,
The certification issuing system according to any one of claims 1 to 5, further comprising an erasing unit that automatically erases the information stored in the memory after the lapse of the specified period. Any of claims 1 to 6, further comprising a face recognition unit that authenticates the face detected by the face detection unit by comparing the face image detected by the face detection unit with the face image stored in advance. The certification issuance system described in item 1. The certification issuing system according to any one of claims 1 to 7, wherein the output device is installed together with the image pickup device and the thermal camera. The computer
A temperature measurement step that measures body temperature based on a thermal image acquired by a thermal camera,
A timekeeping step that outputs the date measured by the temperature measurement step, and
An output step for outputting information linking the body temperature measured by the temperature measurement step, the date output by the timekeeping step, and the face image captured by the image pickup device to a portable recording medium.
How to issue a certificate.

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