WO2023089723A1

WO2023089723A1 - Thermometric system, thermometric apparatus, thermometric method, and program

Info

Publication number: WO2023089723A1
Application number: PCT/JP2021/042381
Authority: WO
Inventors: 英里酒井
Original assignee: 三菱電機株式会社
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2023-05-25
Also published as: JP2023121818A; JPWO2023089723A1; JP7307296B1

Abstract

This thermometric system comprises: an infrared camera (3) that is installed so as to be capable of imaging the wrist of a user using a user authentication apparatus (2) that detects entry of the user into a specified place and periodically carries out the imaging; a learned model storage unit (541) that stores a learned model for inferring the temperature of the wrist from a time series of thermal images; a wrist temperature acquisition unit (402) that acquires the temperature of the wrist of the user on the basis of the time series of the thermal images captured by the infrared camera (3) and the learned model; and a body temperature information storage unit (542) that stores body temperature information including authentication information on a user whose entry has been detected by the user authentication apparatus (2) and the temperature of the wrist of the user acquired by the wrist temperature acquisition unit (402).

Description

Temperature measurement system, temperature measurement device, temperature measurement method and program

The present disclosure relates to a temperature measurement system, a temperature measurement device, a temperature measurement method, and a program.

Due to the global epidemic of the new coronavirus infection (COVID-19), the need for temperature measurement has increased rapidly, and companies, commercial facilities, public facilities, etc. have installed temperature measurement devices to measure the body temperature of visitors. Cases to be installed at the entrance are expanding. Conventionally, various proposals have been made for techniques related to this type of temperature measuring device (for example, Patent Document 1).

The body temperature inspection device described in Patent Document 1 includes a visible camera, a temperature camera, a card reader, a monitor, a control unit, etc., and is installed, for example, at the employee entrance of a company. An employee who has come to work stands in front of the body temperature inspection device and holds an IC card, which is his or her employee ID card, over a card reader, whereby the user ID of the employee is read by the card reader. Next, the employee checks his or her own face captured by the visible camera on the monitor, and adjusts the distance from the body temperature inspection device and lateral deviation so that the displayed face fits within the face frame displayed on the monitor. to fix.

Then, when the employee's face fits in the face frame, the temperature camera takes a picture of the employee's face and measures the temperature of the employee's face. The measured face temperature is associated with the user ID of the employee and stored in the memory of the control unit or in a separately provided server for management.

JP 2011-67371 A

As in the above-mentioned body temperature inspection device, the method of measuring the face temperature of a person whose temperature is to be measured by placing his or her face in the frame displayed on the monitor is well known, and is equipped with a thermo camera. It is widely used in temperature measuring devices that

However, it can be said that the temperature measurement subject is forced to perform troublesome work because it is necessary to check the frame of the monitor and move so that his/her face fits within the frame. Therefore, the actual situation is that there is a demand for a proposal of a new technique that can obtain the user's body temperature without forcing the user to perform a special operation.

The present disclosure has been made in view of the above circumstances, and provides a temperature measurement system, a temperature measurement device, a temperature measurement method, a program, etc. that can acquire the user's body temperature without forcing the user to perform a special operation. With the goal.

In order to achieve the above object, the temperature measurement system according to the present disclosure is
an infrared camera that periodically captures a picture of the user's wrist using an entry detection device that detects the user's entry into a specific place;
a learned model storage means for storing a learned model for inferring the temperature of the wrist from the time series of thermal images;
Wrist temperature acquisition means for acquiring the temperature of the user's wrist based on the time series of thermal images captured by the infrared camera and the learned model;
body temperature information storage means for storing body temperature information including identification information of a user whose entrance is detected by the entrance detection device and the wrist temperature of the user acquired by the wrist temperature acquisition means.

According to the present disclosure, it is possible to obtain the user's body temperature without forcing the user to perform a special action.

The figure which shows the whole structure of the temperature measurement system in embodiment FIG. 4 is a diagram for explaining installation of a user authentication device according to an embodiment; Block diagram showing the hardware configuration of the user authentication device according to the embodiment FIG. 4 is a diagram for explaining installation of an infrared camera according to the embodiment; FIG. 2 is a block diagram showing the hardware configuration of the temperature measuring device according to the embodiment; FIG. 2 is a block diagram showing the hardware configuration of the file server according to the embodiment; Block diagram showing functional configurations of a user authentication device and a temperature measuring device according to an embodiment FIG. 4 is a diagram showing an example of a time series of thermal images captured by an infrared camera according to the embodiment; 4 is a flowchart showing the procedure of temperature measurement processing executed by the temperature measurement device according to the embodiment; The figure which shows the whole structure of the temperature measurement system in the modification of embodiment FIG. 4 is a block diagram showing the functional configuration of an air conditioning control device according to a modified example of the embodiment; The figure which shows the external appearance of the card reader in the modification of embodiment. Figures showing the appearance of a user authentication device in a modified example of the embodiment ((a) view from above, (b) view from front side)

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the overall configuration of the temperature measurement system 1 according to the embodiment. The temperature measurement system 1 is an example of a temperature measurement system according to the present disclosure, for example, a specific place in an office building, laboratory, factory, store, commercial facility, public facility, etc. (for example, work room, laboratory, conference room, etc. ) is a system that measures the body temperature of users who use it and manages the results. As shown in FIG. 1 , the temperature measurement system 1 includes a user authentication device 2 , an infrared camera 3 , a temperature measurement device 4 , a file server 5 and a user terminal 6 .

<User authentication device 2>
The user authentication device 2 is an example of an entrance detection device according to the present disclosure, and authenticates a user entering a specific place. For example, as shown in FIG. 2, the user authentication device 2 is installed on the outer wall of the room A in the vicinity of the electronic door D provided at the entrance of the room A, or is embedded in the outer wall. is installed in In this embodiment, the user authentication device 2 authenticates a user by reading a user ID (identification), which is identification information of the user, from an IC (Integrated Circuit) card 7 carried by the user. The IC card 7 possessed by each user stores the user ID of the user in the built-in IC chip.

As shown in FIG. 3, the user authentication device 2 has a hardware configuration of a CPU (Central Processing Unit) 20, a card reader 21, a communication interface 22, a display 23, a ROM (Read Only Memory) 24, A RAM (Random Access Memory) 25 and an auxiliary storage device 26 are provided. These components are interconnected via a bus 27 . The CPU 20 comprehensively controls the user authentication device 2 . Details of the functions of the user authentication device 2 implemented by the CPU 20 will be described later.

The card reader 21 is an example of a card reader according to the present disclosure. The card reader 21 is a non-contact or contact IC card reader that reads information stored in the user's IC card 7, that is, the user ID of the user. The communication interface 22 is an interface for communicating with other devices via a network N such as a LAN (Local Area Network), such as a wired or wireless LAN interface. The display 23 is a display device such as a liquid crystal display, an organic EL (Electro Luminescence) display, an LED (Light Emitting Diode) display, a 7-segment display, etc., and displays information according to instructions from the CPU 20 . The ROM 24 stores multiple pieces of firmware and data used during execution of these pieces of firmware. A RAM 25 is used as a work area for the CPU 20 .

The auxiliary storage device 26 is composed of a readable/writable non-volatile semiconductor memory, HDD (Hard Disk Drive), or the like. The readable and writable nonvolatile semiconductor memory is, for example, EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, or the like. The auxiliary storage device 26 stores a program related to user authentication (hereinafter referred to as "user authentication program") and data used when executing the user authentication program.

The user authentication device 2 can acquire the above user authentication program or an update program for updating the user authentication program from another device such as the file server 5 by communication via the network N. These programs can also be used on CD-ROMs (Compact Disc Read Only Memory), DVDs (Digital Versatile Discs), magneto-optical discs, USB (Universal Serial Bus) memories, HDDs, SSDs (Solid State Drives), memory cards, etc. It can also be stored and distributed on a computer-readable recording medium. When such a recording medium is directly or indirectly attached to itself, the user authentication device 2 may read and acquire the user authentication program or update program from the recording medium.

<Infrared camera 3>
The infrared camera 3 is an example of an infrared camera according to the present disclosure. The infrared camera 3 includes an infrared image sensor, a communication interface, and a control circuit including a CPU, although none of them are shown. The infrared camera 3 is installed so as to photograph the wrist of the user using the user authentication device 2 . Specifically, as shown in FIG. 4, the field of view of the infrared camera 3 captures at least the wrist of the user when the user holds the IC card 7 over the card reader 21 or touches it. installed in a position where

The infrared camera 3 periodically takes pictures at the position where it is installed, and transmits the taken thermal images (that is, thermography) to the temperature measuring device 4 via the network N.

<Temperature measuring device 4>
The temperature measuring device 4 is an example of the temperature measuring device according to the present disclosure, and measures the body temperature of the user based on the thermal image acquired from the infrared camera 3 . As shown in FIG. 5, the temperature measuring device 4 includes a CPU 40, a communication interface 41, a ROM 42, a RAM 43, and an auxiliary storage device 44 as a hardware configuration. These components are interconnected via a bus 45 . The CPU 40 comprehensively controls the temperature measuring device 4 . The details of the functions of the temperature measuring device 4 implemented by the CPU 40 will be described later.

The communication interface 41 is an interface for communicating with other devices via the network N, such as a wired or wireless LAN interface. The ROM 42 stores multiple pieces of firmware and data used during execution of these pieces of firmware. A RAM 43 is used as a work area for the CPU 40 .

The auxiliary storage device 44 is composed of a readable/writable non-volatile semiconductor memory, HDD, or the like. The readable/writable non-volatile semiconductor memory is, for example, EEPROM, flash memory, or the like. The auxiliary storage device 44 stores a program for measuring the user's temperature (hereinafter referred to as "temperature measurement program") and data used when executing the temperature measurement program.

The temperature measurement device 4 can acquire the temperature measurement program or an update program for updating the temperature measurement program from another device such as the file server 5 through communication via the network N. These programs can also be stored and distributed in computer-readable recording media such as CD-ROMs, DVDs, magneto-optical discs, USB memories, HDDs, SSDs, and memory cards. When such a recording medium is directly or indirectly attached to itself, the temperature measuring device 4 may read and acquire the temperature measuring program or update program from the recording medium.

<File server 5>
The file server 5 is a computer for managing information shared by the temperature measurement system 1 . As shown in FIG. 6, the file server 5 includes a CPU 50, a communication interface 51, a ROM 52, a RAM 53, and an auxiliary storage device 54 as a hardware configuration. These components are interconnected via bus 55 . The CPU 50 comprehensively controls the file server 5 .

The communication interface 51 is an interface for communicating with other devices via the network N, such as a wired or wireless LAN interface. The ROM 52 stores multiple pieces of firmware and data used during execution of these pieces of firmware. A RAM 53 is used as a work area for the CPU 50 .

The auxiliary storage device 54 is composed of a readable/writable non-volatile semiconductor memory, HDD, or the like. The readable/writable non-volatile semiconductor memory is, for example, EEPROM, flash memory, or the like. The auxiliary storage device 54 includes a user information storage section 540 , a learned model storage section 541 and a body temperature information storage section 542 . The user information storage unit 540 stores user information. The user information includes user ID, name, terminal ID, department, admission time, and the like. The terminal ID is the ID of the user terminal 6 owned by the user.

The learned model storage unit 541 is an example of a learned model storage unit according to the present disclosure, and stores a learned model (hereinafter referred to as “wrist "Trained model for temperature inference") is stored. A trained model for wrist temperature inference is an example of a trained model according to the present disclosure.

The body temperature information storage unit 542 is an example of body temperature information storage means according to the present disclosure, and stores body temperature information indicating the body temperature of each user measured by the temperature measuring device 4 . In addition, the auxiliary storage device 54 stores programs for managing information and various data.

<User terminal 6>
The user terminal 6 is an electronic device possessed by a user, such as a smart device such as a smart phone or a tablet terminal. A temperature measurement application, which is an application program for receiving the temperature measurement service provided by the temperature measurement system 1, is installed in the user terminal 6 in advance. The user terminal 6 is communicably connected to the temperature measuring device 4 via the network N, and displays information about the user's body temperature according to instructions from the temperature measuring device 4 .

<Functional configuration of user authentication device 2 and temperature measurement device 4>
FIG. 7 is a block diagram showing functional configurations of the user authentication device 2 and the temperature measurement device 4. As shown in FIG. As shown in FIG. 7 , the user authentication device 2 includes a user ID reading section 200 , a user authentication section 201 and an entrance time writing section 202 . These functional units are implemented by the CPU 20 executing the above-described user authentication program stored in the auxiliary storage device 26 .

The temperature measurement device 4 also includes a thermal image acquisition unit 400 , an entrance information acquisition unit 401 , a wrist temperature acquisition unit 402 , a display instruction unit 403 and a body temperature information writing unit 404 . These functional units are implemented by the CPU 40 executing the above-described temperature measurement program stored in the auxiliary storage device 44 .

In the user authentication device 2, the user ID reading unit 200 reads the user ID from the IC card 7 held over or touched by the user over the card reader 21. The user authentication section 201 authenticates the user based on the user ID read by the user ID reading section 200 . Specifically, the user authentication unit 201 accesses the file server 5 via the network N, searches for the user information of each user stored in the user information storage unit 540, and retrieves the user information read by the user ID reading unit 200. The user is authenticated by determining whether or not user information including a user ID that matches the user ID obtained is registered.

When user information including a user ID that matches the read user ID is found, the user authentication unit 201 determines that the user is an authorized user and instructs the electronic door D to unlock. Also, the user authentication unit 201 notifies the entrance time writing unit 202 that the user has been authenticated. On the other hand, if no user information including a user ID that matches the read user ID is found, the user authentication unit 201 returns information indicating that the user has not been authenticated (for example, "authentication failed"). Displayed on the display 23 .

Upon receiving notification from the user authentication unit 201 that the user has been authenticated, the entrance time writing unit 202 accesses the file server 5 via the network N, and stores the user information of the user in the user information storage unit 540 at the current time. Write the time as the entry time.

In the temperature measuring device 4, the thermal image acquisition unit 400 is an example of thermal image acquisition means according to the present disclosure. The thermal image acquisition unit 400 periodically acquires captured thermal images from the infrared camera 3 through communication via the network N, sorts the acquired thermal images in time series, and stores them in the thermal image storage unit 440 . A thermal image storage unit 440 is a memory area provided by the auxiliary storage device 44 .

The entry information acquisition unit 401 periodically accesses the file server 5 via the network N, and the user information storage unit 540 stores user information whose entry time has been updated. determine whether or not It is to be noted that the cycle of the admission information acquisition unit 401 making the determination is longer than the cycle of the thermal image acquisition unit 400 acquiring thermal images from the infrared camera 3 . When determining that a new user has entered the room A, the entrance information acquiring unit 401 reads and acquires the user ID, the terminal ID, and the entrance time from the user information of the user as entrance information. The entrance information acquisition unit 401 notifies the wrist temperature acquisition unit 402 of the acquired entrance information.

The wrist temperature acquisition unit 402 is an example of wrist temperature acquisition means according to the present disclosure. When the entrance information acquisition unit 401 acquires the entrance information of the user who has newly entered the room A, the wrist temperature acquisition unit 402 acquires the time series of the thermal images captured by the infrared camera 3 and the learning of the file server 5 . Based on the learned model for wrist temperature inference stored in the model storage unit 541, the temperature of the user's wrist is obtained. As described above, the trained model storage unit 541 stores a trained model for inferring wrist temperature, which is generated in advance by learning and used to infer wrist temperature from the time series of thermal images.

A trained model for wrist temperature inference is generated, for example, by learning the wrist temperature corresponding to the time series of thermal images by supervised learning using a neural network. Specifically, the trained model for wrist temperature inference is a time series of thermal images captured during operation by a developer or the like simulating the situation when the user uses the user authentication device 2 (that is, the card reader 21). It is generated by performing learning using input data and the actual wrist temperature of the developer or the like as correct data. At that time, the developer or the like holds the IC card 7 over the card reader 21 in various ways (for example, with the palm facing the card reader 21, with the back of the hand facing the card reader 21, etc.), or Perform an action such as contact.

The wrist temperature acquiring unit 402 acquires a predetermined number (for example, seven) of a series of thermal images including thermal images at the entrance time indicated by the entrance information and thermal images before and after the entrance time from the thermal image storage unit 440. Read out the time series of images (see FIG. 8). The wrist temperature acquisition unit 402 accesses the file server 5 via the network N, inputs the time series of the read thermal images to the trained model for wrist temperature inference, and infers and acquires the wrist temperature of the user. do. The wrist temperature acquisition unit 402 notifies the display instruction unit 403 and body temperature information writing unit 404 of the acquired wrist temperature.

The display instruction unit 403 instructs the user terminal 6 of the user to display the wrist temperature acquired by the wrist temperature acquisition unit 402 . Upon receiving such an instruction, the user terminal 6 displays the user's wrist temperature (for example, "36.5° C.") by, for example, push notification. If the wrist temperature acquired by the wrist temperature acquisition unit 402 is higher than a predetermined upper limit of normal temperature (for example, 37° C.), the display instruction unit 403 indicates that the temperature of the user's wrist is higher than the normal temperature. The user terminal 6 of the user may be instructed to display information for notification. Upon receiving such an instruction, the user terminal 6 may display a message such as "Body temperature is higher than normal" together with the temperature of the user's wrist.

The body temperature information writing unit 404 is an example of body temperature information writing means according to the present disclosure. The body temperature information writing unit 404 accesses the file server 5 via the network N, and writes body temperature information including the user ID of the user and the wrist temperature of the user acquired by the wrist temperature acquisition unit 402 as body temperature information. Write to storage unit 542 . At this time, the body temperature information writing unit 404 may write the body temperature information to the body temperature information storage unit 542 in such a manner as to overwrite the previous body temperature information of the user, or may write the body temperature information separately in chronological order. In the latter case, the body temperature information storage unit 542 stores the history of body temperature information for each user.

<Temperature measurement processing>
FIG. 9 is a flow chart showing the procedure of the temperature measurement process executed by the temperature measurement device 4. As shown in FIG. The temperature measuring device 4 performs the following temperature measuring process periodically (for example, every minute).

(Step S100)
The temperature measuring device 4 determines whether or not a new user has entered the room A. Specifically, the temperature measurement device 4 checks the user information of each user stored in the user information storage unit 540 of the file server 5, and determines whether or not there is user information whose entry time has been updated. It is determined whether or not a new user has entered the room A. When a new user enters the room A (step S100; YES), the processing of the temperature measuring device 4 transitions to step S101. On the other hand, when the new user has not entered the room A (step S100; NO), the temperature measuring device 4 terminates the temperature measuring process in this cycle.

(Step S101)
Based on the time series of thermal images captured by the infrared camera 3 around the time when the user entered the temperature measuring device 4 and the learned model for wrist temperature inference stored in the learned model storage unit 541, the Get the user's wrist temperature. After that, the processing of the temperature measuring device 4 transitions to step S102.

(Step S102)
The temperature measuring device 4 instructs the user terminal 6 of the user to display the acquired wrist temperature. After that, the processing of the temperature measuring device 4 transitions to step S103.

(Step S103)
The temperature measuring device 4 stores body temperature information including the user ID of the user and the obtained wrist temperature of the user in the body temperature information storage unit 542 of the file server 5 . After that, the temperature measuring device 4 ends the temperature measuring process in this cycle.

As described above, in the temperature measurement system 1 according to the present embodiment, when a user enters a specific place, the user holds his or her IC card 7 over the card reader 21 of the user authentication device 2, or , obtains the temperature of the user's wrist based on a thermal image captured during a general user authentication operation such as contact. It is known that the temperature of the wrist generally does not easily change and that it is effective as a thermometer. Therefore, according to the temperature measurement system 1 of the present embodiment, it is possible to acquire the body temperature of the user without forcing the user to perform a special operation.

Further, in the temperature measurement system 1 according to the present embodiment, the temperature of the wrist is inferred from the time series of thermal images taken around the time when the user is authenticated and the time series of thermal images generated in advance by learning. The temperature of the user's wrist is acquired based on the trained model for inferring the wrist temperature. Therefore, it is possible to accurately measure the body temperature of the user.

(Modification 1)
In the temperature measurement system 1, a plurality of locations may be targets for temperature measurement. In this case, the user authentication device 2 and the infrared camera 3 are installed for each place, and the entrance time writing unit 202 of each user authentication device 2 stores the user information of the file server 5 when the user is authenticated by the user authentication unit 201 . The current time is written as the entry time in the user information of the user in the storage unit 540, and the place ID of the corresponding place is also written. In addition, each infrared camera 3 transmits data including the photographed thermal image and the location ID of the corresponding location to the temperature measuring device 4 . The thermal image acquisition unit 400 of the temperature measuring device 4 sorts the thermal images acquired from the infrared camera 3 in chronological order for each location ID and stores them in the thermal image storage unit 440 .

The entrance information acquisition unit 401 of the temperature measurement device 4 periodically accesses the file server 5, and in the user information storage unit 540, the presence or absence of user information whose entrance time has been updated, that is, where a new user is Determine whether or not you have entered. Then, when it is determined that a new user has entered any place, the entrance information acquiring unit 401 reads and acquires the user ID, the terminal ID, the entrance time, and the place ID from the user information of the user as entrance information. do. When the entrance information is acquired by the entrance information acquisition unit 401, the wrist temperature acquisition unit 402, based on the time series of thermal images corresponding to the location indicated by the entrance information and the trained model for wrist temperature inference, Obtain the temperature of the user's wrist. In this way, multiple locations can be targeted for temperature measurement.

(Modification 2)
A thermal image captured by the infrared camera 3 may be stored in the auxiliary storage device 54 of the file server 5 . In this case, when acquiring the temperature of the user's wrist, the temperature measurement device 4 includes a predetermined number (for example, seven) of a series of thermal images at the entrance time of the user and thermal images before and after the entrance time. The time series of thermal images can be obtained by reading them from the auxiliary storage device 54 of the file server 5 .

(Modification 3)
The configuration may be such that the user authentication device 2 and the infrared camera 3 are integrated.

(Modification 4)
When the obtained wrist temperature of the user is higher than the normal upper limit value, the temperature measuring device 4 determines in advance that the user's body temperature is high, such as the person in charge of the place where the user entered, the user's superior, etc. The notification target person may be notified via the user terminal 6 possessed by the notification target person.

(Modification 5)
FIG. 10 is a diagram showing the overall configuration of a temperature measurement system 1a in a modified example of the embodiment. The temperature measurement system 1a is an example of the temperature measurement system according to the present disclosure, and like the temperature measurement system 1 of the embodiment, for example, a specific place in an office building, a research institute, a factory, a store, a commercial facility, a public facility, etc. , workrooms, laboratories, conference rooms, etc.), and manage the results. Furthermore, the temperature measurement system 1a performs air conditioning control using the user's body temperature information.

As shown in FIG. 10, the temperature measurement system 1a includes a user authentication device 2, an infrared camera 3, a temperature measurement device 4, a file server 5, a user terminal 6, an air conditioning control device 9, and an air conditioner 10. . The air conditioning control device 9 is an example of air conditioning control means according to the present disclosure. The air-conditioning control device 9 is a computer including a CPU, a communication interface, a ROM, a RAM, and an auxiliary storage device, none of which are shown. The air conditioner 10 is an indoor unit of an air conditioner, and is installed in the specific location (for example, room A). The air conditioner 10 is connected to the air conditioning control device 9 via the network N so as to be communicable. A plurality of air conditioners 10 may be installed at the location.

FIG. 11 is a block diagram showing the functional configuration of the air conditioning control device 9. As shown in FIG. As shown in FIG. 11 , the air conditioning control device 9 includes an entrance information acquisition section 900 , a body temperature information acquisition section 901 , a control determination section 902 and a control command section 903 . These functional units are implemented in the air conditioning control device 9 by the CPU executing an air conditioning control program, which is a program for performing air conditioning control, stored in an auxiliary storage device.

The entry information acquisition unit 900 periodically accesses the file server 5 via the network N, and in the user information storage unit 540, the presence or absence of user information whose entry time has been updated. ) to determine whether a new user has entered. When determining that a new user has entered the location, the entrance information acquiring unit 900 reads and acquires the user ID from the user information of the user as entrance information.

The body temperature information acquisition unit 901 accesses the file server 5 and reads and acquires the admission information acquired by the admission information acquisition unit 900, that is, the body temperature information corresponding to the user ID, from the body temperature information storage unit 542. Note that if the body temperature information storage unit 542 stores a history of body temperature information for each user, the body temperature information acquisition unit 901 acquires the latest body temperature information corresponding to the user ID.

A control determination unit 902 determines the details of control for the air conditioner 10 based on the body temperature information acquired by the body temperature information acquisition unit 901 . For example, if the user's body temperature indicated by the body temperature information is lower than a predetermined first threshold, the control determination unit 902 determines to increase the set temperature of the air conditioner 10 by several degrees Celsius, and is higher than a predetermined second threshold (first threshold<second threshold), it is determined to lower the set temperature of the air conditioner 10 by several degrees Celsius.

Alternatively, if the user's body temperature is lower than the first threshold, the control determination unit 902 determines, as control content, to decrease the air volume during cooling and increase the air volume during heating. 2 If it is higher than the threshold, it is determined to increase the air volume during cooling and decrease the air volume during heating.

The control command unit 903 generates a control command for the air conditioner 10 based on the control content determined by the control determination unit 902, and transmits the generated control command to the air conditioner 10 via the network N.

Note that the user information in the user information storage unit 540 includes information such as the user's sensory characteristics for air temperature (for example, sensitivity to heat, sensitivity to cold, etc.), requests for air conditioning (for example, stronger than usual, weaker than usual, etc.) (hereinafter referred to as (referred to as “thermal sensation information”) is set, the control determination unit 902 may determine the control details for the air conditioner 10 in consideration of the user's thermal sensation information as well. In this case, the entry information acquiring unit 900 may acquire the user ID and the thermal sensation information as the entry information from the user information of the user who entered the place.

In addition, the air conditioning control device 9 detects the position of the user in the location (for example, room A) using a thermal image sensor provided in the air conditioner 10, and detects the body temperature information of the user, the detected position, and the temperature of the user. Based on the chilliness information, the wind direction of the air conditioner 10 and the like may be adjusted, and the ventilation air volume and the like of a ventilation device (not shown) may be adjusted.

Note that instead of the air conditioning control device 9, the temperature measuring device 4 may perform the above air conditioning control.

(Modification 6)
The temperature measuring device 4 selects a space suitable for the user in the place where the user has entered based on the user's body temperature information, and provides information about the selected space to the user via the user's user terminal 6. The configuration may further include a not-shown recommendation section (an example of recommendation means according to the present disclosure). In this case, the temperature measuring device 4 measures the room temperature measured by each air conditioner from one or more air conditioners (for example, the air conditioner 10 in Modification 5) installed at each of one or more locations to be measured. A room temperature acquisition unit (not shown) is provided for acquiring, and when a plurality of air conditioners are installed in the place where the user enters, the user's body temperature information and each room temperature acquired from each of the plurality of air conditioners (that is, room temperature in the space corresponding to each air conditioner), the space suitable for the user is selected.

Furthermore, when the above-described thermal sensation information is set in the user information of the user information storage unit 540, the recommendation unit may also consider the thermal sensation information and select a space suitable for the user. .

(Modification 7)
As shown in FIG. 12 , when the user tries to hold the IC card 7 over the card reader 21 or to bring the IC card 7 into contact with the card reader 21 , the user's wrist is directed toward the front of the infrared camera 3 . A frame 8 projecting forward (that is, toward the user) may be provided on a part of the edge of 21 . By doing so, it becomes possible to acquire the temperature of the wrist more accurately, and even an infrared camera with a narrow angle of view can be used as the infrared camera 3 .

(Modification 8)
As shown in FIG. 13, the user authentication device 2 may have an appearance structure in which the reading surface of the card reader 21 is inclined in accordance with the traveling direction of the user. FIG. 13(a) is a top view of the user authentication device 2 in this modification, and FIG. 13(b) is a front view of the user authentication device 2 in this modification. In this way, the user authentication device 2 shown in FIG. 13 is thickest in the upper portion on the back side in the direction in which the user moves, and is thinnest in the lower portion on the front side. An infrared camera 3 is attached to the lower portion of the user authentication device 2 on the front side in the user's traveling direction.

By adopting such an external structure, when the user tries to hold the IC card 7 over the card reader 21 or to bring the IC card 7 into contact with the card reader 21 , the user's wrist will be able to move the user through the user authentication device 2 . It is possible to guide the movement of the user's hand so that it approaches the lower part on the front side of the direction, that is, the position where the infrared camera 3 is installed. Therefore, it is possible to obtain the temperature of the wrist more accurately, and even an infrared camera with a narrow angle of view can be used as the infrared camera 3 .

(Modification 9)
The temperature measuring device 4 may measure the body temperature of a user authenticated by a user authentication device that performs user authentication by retinal authentication, face authentication, contactless fingerprint authentication, or the like.

(Modification 10)
All or part of the functional units of the user authentication device 2 (see FIG. 7) may be realized by dedicated hardware, or all or part of the functional units of the temperature measuring device 4 (see FIG. 7) may be implemented by dedicated hardware, or all or part of the functional units of the air conditioning control device 9 (see FIG. 11) may be implemented by dedicated hardware. Dedicated hardware is, for example, a single circuit, a composite circuit, a programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof.

The technical ideas related to each of the modifications above may be realized independently, or may be realized in combination as appropriate.

Various embodiments and modifications are possible for the present disclosure without departing from its broad spirit and scope. In addition, the embodiments described above are for explaining the present disclosure, and do not limit the scope of the present disclosure. In other words, the scope of the present disclosure is indicated by the claims rather than the embodiments. Various modifications made within the scope of the claims and within the scope of equivalent disclosure are considered to be within the scope of the present disclosure.

The present disclosure can be suitably applied to systems that measure and manage human body temperature.

1, 1a temperature measurement system, 2 user authentication device, 3 infrared camera, 4 temperature measurement device, 5 file server, 6 user terminal, 7 IC card, 8 frame, 9 air conditioning control device, 10 air conditioner, 20, 40, 50 CPU, 21 card reader, 22, 41, 51 communication interface, 23 display, 24, 42, 52 ROM, 25, 43, 53 RAM, 26, 44, 54 auxiliary storage device, 27, 45, 55 bus, 200 user ID reader , 201 user authentication unit, 202 entrance time writing unit, 400 thermal image acquisition unit, 401, 900 entrance information acquisition unit, 402 wrist temperature acquisition unit, 403 display instruction unit, 404 body temperature information writing unit, 440 thermal image storage unit , 540 user information storage unit, 541 learned model storage unit, 542 body temperature information storage unit, 901 body temperature information acquisition unit, 902 control determination unit, 903 control command unit

Claims

an infrared camera that periodically captures a picture of the user's wrist using an entry detection device that detects the user's entry into a specific place;
a learned model storage means for storing a learned model for inferring the temperature of the wrist from the time series of thermal images;
Wrist temperature acquisition means for acquiring the temperature of the user's wrist based on the time series of thermal images captured by the infrared camera and the learned model;
Body temperature information storage means for storing body temperature information including identification information of a user whose entrance is detected by the entrance detection device and the wrist temperature of the user acquired by the wrist temperature acquisition means. .
The temperature measurement system according to claim 1, further comprising air conditioning control means for controlling air conditioning of said specific place based on said user's body temperature information stored in said body temperature information storage means.
further comprising recommendation means for selecting a space suitable for the user in the specific location based on the body temperature information of the user stored in the body temperature information storage means, and providing information on the selected space to the user; The temperature measurement system according to claim 1 or 2.
The entrance detection device includes a card reader,
The temperature measurement system according to any one of claims 1 to 3, wherein a frame projecting forward is provided on a part of the edge of the card reader.
The entrance detection device includes a card reader,
The temperature measurement system according to any one of claims 1 to 3, wherein the reading surface of the card reader is inclined according to the user's traveling direction.
Thermal image acquisition means for acquiring a captured thermal image from an infrared camera installed so as to be able to capture the wrist of a user using an entrance detection device that detects the user's entry into a specific place;
Wrist temperature acquisition for acquiring the temperature of the user's wrist based on the trained model for inferring the wrist temperature from the thermal image time series and the thermal image time series acquired by the thermal image acquisition means. means and
body temperature information writing means for writing body temperature information including identification information of the user whose entrance is detected by the entrance detection device and the wrist temperature of the user acquired by the wrist temperature acquisition means into body temperature information storage means; A temperature measuring device.
The thermal image acquisition means acquires a photographed thermal image from an infrared camera installed so as to be able to photograph the wrist of a user using an entrance detection device that detects the user's entry into a specific place,
A wrist temperature acquisition means calculates the temperature of the user's wrist based on a trained model for inferring the wrist temperature from the thermal image time series and the thermal image time series acquired by the thermal image acquisition means. and get
A body temperature information writing means writes body temperature information including identification information of a user whose entrance is detected by the entrance detection device and the wrist temperature of the user acquired by the wrist temperature acquisition means into body temperature information storage means. , thermometry method.
the computer,
Thermal image acquisition means for acquiring a captured thermal image from an infrared camera installed so as to capture the wrist of a user using an entrance detection device that detects the user's entry into a specific place;
Wrist temperature acquisition for acquiring the temperature of the user's wrist based on the trained model for inferring the wrist temperature from the thermal image time series and the thermal image time series acquired by the thermal image acquisition means. means,
body temperature information writing means for writing body temperature information including identification information of the user whose entrance is detected by the entrance detection device and the wrist temperature of the user acquired by the wrist temperature acquisition means into body temperature information storage means; A program that works.