Entrance control system

Abstract

To flexibly regulate access to each room in a building for a user having an abnormal body temperature.SOLUTION: An entrance management system 10 includes: a storage device 16 that stores user body temperature information 18 where user identification information acquired when a user 92 passes through a security gate 40 of a building 80 is associated with a body temperature of the user, and rank information 20 indicating a rank of population density of each of a plurality of rooms 82 in the building; and a control device 12 that controls an electric lock 34 provided in a door of each room in the building by receiving an unlock request, and acquires the user identification information of the user 92 issuing the unlock request. The control device 12, in response to the unlock request of the electric lock of a room 82-2 having a rank of low population density by the user having an abnormal body temperature in the user body temperature information 18, unlocks the electric lock thereof and avoids unlock of the electric lock for the unlock request of the electric lock of a room 82-1 having a rank of high population density by the same user.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an entrance management system, and more particularly to a system that manages the entrance of users into a building based on the user's body temperature. [Background technology]

[0002] Conventionally, in order to prevent the spread of infectious diseases, etc., it has been practiced to restrict the entry of people with relatively high body temperatures into buildings. Patent Documents 1 and 2 disclose a system that detects the body temperature of a user when the user attempts to pass through a security gate of a building, and closes the gate flapper of the security gate when the detected body temperature is higher than a predetermined value, thereby preventing the user from passing through the security gate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-204062 A [Patent Document 2] International Publication No. 2017 / 057274 Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable to be able to flexibly restrict access to each room in a building for a user who is found to have an abnormal body temperature, rather than restricting access to the inside of the building. [Means for solving the problem]

[0005] The entry management system of the present invention comprises a storage device that stores user body temperature information linked to user identification information and user body temperature acquired when a user passes through a security gate of a building, and rank information indicating the rank of the population density of each of a plurality of rooms in the building, and a control device that controls the electric locks installed on the doors of each of the rooms in the building in response to an unlocking request and acquires the user identification information of the user who issues the unlocking request, wherein the ranks in the rank information include a first rank and a second rank having a higher population density than the first rank, and the control device determines whether the user body temperature linked to the user identification information of the user who issues the unlocking request in the user body temperature information is an abnormal body temperature, and unlocks the electric lock of a room having the first rank in response to a request to unlock the electric lock of the room having the first rank by a user with the abnormal body temperature, and avoids unlocking the electric lock of the room having the second rank in response to a request to unlock the electric lock of the room by the user.

[0006] The entry management system of the present invention may further include a detection means for detecting people in each of the rooms, and the control device may obtain the number of people in each of the rooms based on the detection result of the detection means, and update the rank of the population density of each of the rooms in the rank information based on the number of people in each of the rooms.

[0007] The entry management system of the present invention may further include an entry operation unit provided near the door on the outside of the room and receiving an operation to unlock the electric lock of the door from the user, and an exit operation unit provided near the door on the inside of the room and receiving an operation to unlock the electric lock of the door from the user, and the control device may update the rank of population density of each of the rooms in the rank information based on the number of times each of the entry operation unit and the exit operation unit is operated.

[0008] In the entry management system of the present invention, the user body temperature in the user body temperature information is the latest user body temperature, and the user body temperature information further includes past user body temperatures linked to user identification information and obtained each time a user corresponding to the user identification information passes through the security gate, and the control device calculates a normal body temperature of the user corresponding to the user identification information using the past user body temperatures linked to the user identification information of the user body temperature information, and if a difference between the latest user body temperature linked to the user identification information of the user issuing the unlock request in the user body temperature information and the normal body temperature of the user is equal to or greater than a predetermined threshold, it may be determined that the latest user body temperature is an abnormal body temperature.

[0009] The entrance management system of the present invention may further include a thermal camera that acquires the user body temperature of a user passing through the security gate, and the control device may correct the latest user body temperature or the threshold value based on at least one of the time of day, outside temperature, weather, and season when the thermal camera acquires the latest user body temperature, and may determine whether or not the body temperature is abnormal using the corrected latest user body temperature or the threshold value.

[0010] In the entry management system of the present invention, the ranks of the rank information further include a third rank having a higher population density than the first rank and a lower population density than the second rank, and the control device may determine that the user's body temperature is the abnormal body temperature when the user's body temperature in the user's body temperature information linked to the user identification information of the user issuing the unlocking request is equal to or higher than a predetermined first threshold, and determine that the user's body temperature is a sub-abnormal body temperature when the user's body temperature in the user's body temperature information linked to the user identification information of the user issuing the unlocking request is lower than the first threshold and equal to or higher than a predetermined second threshold which is lower than the first threshold, and avoid unlocking an electric lock of a room having the third rank in response to a request to unlock the electric lock of a room having the first or third rank in response to a request to unlock the electric lock of a room having the second rank in response to a request to unlock the electric lock of a room having the second rank in response to a request to unlock the electric lock of a room having the abnormal body temperature. Effect of the Invention

[0011] According to the present invention, it is possible to allow a user with an abnormal body temperature to access rooms with a low population density rank (first rank), while restricting access to rooms with a high population density rank (second rank). [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating a room entry management system according to an embodiment. [Diagram 2] FIG. 11 is a diagram showing an example of user body temperature information. [Diagram 3] FIG. 11 is a diagram illustrating an example of rank information. [Figure 4] FIG. 13 is a diagram for explaining population density ranks. [Diagram 5] FIG. 11 is a diagram illustrating an example of determination result information. [Figure 6] FIG. 4 is a diagram illustrating an example of control information. [Figure 7] FIG. 13 is a diagram illustrating another example of rank information. [Figure 8] FIG. 13 is a diagram showing yet another example of rank information. [Figure 9] FIG. 11 is a diagram showing another example of determination result information. [Figure 10] FIG. 13 is a diagram for explaining another population density rank. [Figure 11] FIG. 13 is a diagram showing yet another example of rank information. [Figure 12] FIG. 11 is a diagram showing yet another example of determination result information. [Figure 13] FIG. 11 is a diagram illustrating an example of another control information. [Figure 14] FIG. 11 is a diagram showing yet another example of determination result information. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Each embodiment of the present invention will be described below with reference to the drawings. The configurations described below are illustrative examples and can be modified as appropriate to suit the specifications of the system and device. In addition, when multiple embodiments and modifications are included below, it is assumed from the beginning that the characteristic parts of these embodiments and modifications will be used in appropriate combination. The same elements in all drawings are given the same reference numerals, and duplicated descriptions will be omitted.

[0014] 1 is a diagram showing a schematic diagram of an entry management system 10. The entry management system 10 includes a security gate 40 and a thermal camera 46 installed in an entrance hall of a building 80, electric locks 34 installed on doors 50 of rooms 82-1, 82-2, and 82-3 in the building 80, a tag reader 30 (also called an entry operation unit 30) that receives an unlocking operation of each electric lock 34 from a user 92, and a control device 12 (also called an entry management device 12) that controls each electric lock 34 upon receiving an unlocking request from each tag reader 30. Hereinafter, when it is not necessary to distinguish between each of the multiple rooms 82-1, 82-2, and 82-3, they will be referred to as rooms 82.

[0015] In this embodiment, the building 80 is an office building, and each user 92 is an employee or a predetermined person who works in the office building. The security gate 40 is a facility provided between the public area and the restricted area to restrict access by people so that only employees or predetermined people can enter the restricted area from the public area. Each room 82 is within the restricted area of ​​the building 80. Note that the building 80 is not limited to an office building.

[0016] The security gate 40 includes a tag reader 42. The tag reader 42 is a device that acquires user identification information (e.g., an employee number) stored in an IC tag in an ID card 96 held by a user 92 when the tag reader 42 is brought close to the tag reader 42. The user identification information acquired by the tag reader 42 is transmitted to the control device 12. The control device 12 receives the user identification information from the tag reader 42 and compares it with a list (not shown) previously stored in the storage device 16. If the user identification information received from the tag reader 42 is in the list, the control device 12 controls the gate flapper of the security gate 40 to an open state. If the user identification information received from the tag reader 42 is not in the list, the control device 12 controls the gate flapper of the security gate 40 to a closed state. Such control of the security gate 40 can be achieved using existing technology.

[0017] The ID card 96 held by the user 92 has, for example, a card shape and has an IC tag built in. The IC tag includes an IC chip and an antenna (neither shown), and the IC chip stores user identification information. The tag reader 42 of the security gate 40 may be a device that reads user identification information stored in a mobile terminal device such as a smartphone.

[0018] The security gate 40 may be provided with a face authentication camera instead of the tag reader 42. In this case, when the user 92 stands in front of the face authentication camera, the face authentication camera acquires a face image of the user 92 and transmits it to the control device 12. The control device 12 receives the face image from the face authentication camera, extracts facial feature information from the face image, and compares it with a list (not shown, a list linking facial feature information with user identification information) previously stored in the storage device 16. If the feature information of the extracted face image is in the list, the control device 12 controls the gate flapper of the security gate 40 to an open state. If the feature information of the extracted face image is not in the list, the control device 12 controls the gate flapper of the security gate 40 to a closed state. Such control of the security gate 40 can also use existing technology. The control device 12 can acquire user identification information (user identification information of a user passing through the security gate 40) corresponding to the feature information of the extracted face image from the list. Although face authentication is used here, other biometric authentication may be used.

[0019] The thermal camera 46 is a device that detects infrared rays emitted by a person and measures the body surface temperature of the person. Strictly speaking, the thermal camera 46 is not a device that measures the body temperature of a person, but in practice it is widely used as a device for measuring the body temperature of a person. In this embodiment, the thermal camera 46 is also used as a device for measuring the body temperature of the user 92. The thermal camera 46 is provided near the security gate 40 or is provided integrally with the security gate 40.

[0020] When a user 92 passes through the security gate 40, the thermal camera 46 acquires the body temperature of the user 92 (hereinafter referred to as the user body temperature). That is, when the user 92 passes through the security gate 40, both the user identification information and the user body temperature of the user 92 are acquired. The user identification information and the user body temperature are linked and stored in the storage device 16 as part of the user body temperature information 18 (see FIG. 2).

[0021] The control device 12 is a computer such as a personal computer or a server. The control device 12 includes a processor 14 having a CPU, and a storage device 16 storing a program (not shown) and various data. The processor 14 may include an ASIC (Application Specific Integrated Circuit) instead of or in addition to the CPU. The control device 12 may include a plurality of physically separated processors, or may be configured by combining a plurality of computers. The storage device 16 is, for example, a hard disk, a flash memory, a RAM, a ROM, or the like. The storage device 16 stores user body temperature information 18, rank information 20, control information 22, and judgment result information 23. The storage device 16 may be partially or entirely separate from the control device 12, or may be configured by combining a plurality of physically separated storage devices. The control device 12 and the storage device 16 may be located inside a building 80 or outside the building 80.

[0022] The control device 12 is electrically connected to the security gate 40, the thermal camera 46, the electric locks 34 of each room 82, and the tag reader 30 (entry operation unit 30) for entering each room 82. Note that, although a camera 24 disposed in each room 82 and a tag reader 32 (also called an exit operation unit 32) for leaving each room 82 are shown in Fig. 1, these are used in the embodiment described below and are not essential components.

[0023] Each room 82 in the building 80 is provided with a door 50, and an electric lock 34 is attached to the door 50. A tag reader 30 (room entry operation unit) that receives an unlocking operation of the electric lock 34 of the door 50 from a user 92 is attached to a wall near the door 50 on the outside of each room 82. Each tag reader 30 is associated one-to-one with the electric lock 34 of the door 50 located nearby. When an ID card 96 held by a user 92 is brought close to the tag reader 30, the tag reader 30 receives an unlocking request for the electric lock 34 associated with the tag reader 30 and acquires user identification information stored in an IC tag in the ID card 96. The user identification information acquired by the tag reader 30 is transmitted to the control device 12 together with the unlocking request. The control device 12 receives the user identification information and the unlocking request, and controls the electric lock 34 for which the unlocking request was issued based on the user identification information (details will be described later).

[0024] The entry operation unit 30 may be a face authentication camera instead of a tag reader. This face authentication camera is the same device as the face authentication camera of the security gate 40 described above. When the entry operation unit 30 is a face authentication camera, the following control is performed. When the user 92 stands in front of the face authentication camera, the face authentication camera receives an unlocking request for the electric lock 34 associated with the user 92 and acquires a face image of the user 92. The face image acquired by the face authentication camera is then transmitted to the control device 12 together with the unlocking request. The control device 12 receives the face image and the unlocking request, acquires user identification information based on the received face image, and controls the electric lock 34 for which the unlocking request was issued based on the acquired user identification information. Although face authentication is used here, other biometric authentication may be used.

[0025] Next, various information stored in the storage device 16 will be described. FIG. 2 is a diagram showing an example of the user body temperature information 18. The user body temperature information 18 is information in which user identification information and user body temperature are linked for each user. As described above, each user body temperature is the body temperature acquired when the user 92 passes through the security gate 40. The user body temperature information 18 includes the latest user body temperature TL (the most recently acquired user body temperature) for each user, and past user body temperatures acquired before the latest user body temperature. Each user body temperature is linked to the date and time when it was acquired (acquisition date and time). In the past user body temperatures, the smaller the number (No.) associated with the body temperature is, the later the body temperature was acquired. The past user body temperatures are used in the embodiment described later.

[0026] FIG. 3 is a diagram showing an example of rank information 20. Rank information 20 is information indicating room identification information, room name, room area, and population density rank (hereinafter also simply referred to as rank) for each room. In FIG. 3, the room reference code (82-1, 82-2, or 82-3) is added in parentheses to the room identification information corresponding to each of rooms 82-1, 82-2, and 82-3 shown in FIG. 1. Room 82-1 is the "first conference room" and has a room area of ​​"40 m2." 2 " and its rank is "A". Room 82-2 is a "large office room" with a room area of ​​"500 m 2 " and rank "B". Room 82-2 (large office room) has a relatively large room area, but for convenience of illustration, room 82-2 is drawn smaller in size in FIG. 1. Room 82-3 is the "second conference room" and has a room area of ​​"40 m". 2 " and is ranked "B".

[0027] Here, as shown in FIG. 4, the rank is information indicating the level of population density of a room. There are rank B (first rank) and rank A (second rank) indicating a higher population density than the first rank. As described above, the rank information 20 (see FIG. 3) sets a rank for each room. In this embodiment, the rank of each room is predetermined and fixed. That is, rank B is set for a room that is maintained in a low population density state, and rank A is set for a room that may have a high population density. Since room 82-2 (large office room) has a relatively large room area and is a room in which people who can enter the room are restricted by attributes, etc., rank B is set as a room that is maintained in a low population density state. On the other hand, room 82-1 (first conference room) and room 82-3 (second conference room) have a relatively small room area and are likely to attract many people, and therefore rank A is set as a room that may have a high population density.

[0028] As shown in Figure 4, when the area per person in a room is less than a threshold (e.g., 8 m 2 ) or more, a rank B is set, and the area per person in the room is set to a threshold (e.g. 8m 2 ) rooms may be set to rank A.

[0029] FIG. 5 is an example of the judgment result information 23. The judgment result information 23 is information indicating the user identification information, the latest user body temperature TL, the body temperature judgment result, and the rank of the accessible room for each user. The judgment result information 23 may be combined with the user body temperature information 18 and exist as a part of the user body temperature information 18. The "latest user body temperature TL" of the user body temperature information 18 and the "latest user body temperature TL" of the judgment result information 23 are the same. For each user, when the latest user body temperature TL is equal to or higher than a threshold value (e.g., 37°C), the control device 12 judges that the latest user body temperature TL is an abnormal body temperature, and when the latest user body temperature TL is less than the threshold value (e.g., 37°C), the control device 12 judges that the latest user body temperature TL is a normal body temperature. The control device 12 regards the judgment result as the body temperature judgment result of the judgment result information 23.

[0030] FIG. 6 is a diagram showing an example of the control information 22. The control information 22 is information indicating the ranks of rooms that can be accessed by users with normal body temperature and users with abnormal body temperature. The control information 22 indicates that users with normal body temperature can access rooms of either rank A or B. The control information 22 also indicates that users with abnormal body temperature can access rooms of rank B (first rank, population density: low) but cannot access rooms of rank A (second rank, population density: high). By referring to the control information 22, the control device 12 sets, for each user, an "accessible room rank" corresponding to normal body temperature and abnormal body temperature in the "body temperature judgment result" of the judgment result information 23 (see FIG. 5).

[0031] Next, the operation of the entry management system 10 will be specifically described.

[0032] As shown in FIG. 1, when a user 92 passes through a security gate 40 of a building 80, user identification information is acquired by the tag reader 42 of the security gate 40, and the user's body temperature is acquired by the thermal camera 46. The control device 12 acquires the user identification information and the user's body temperature, links them together, and stores them in the user's body temperature information (see FIG. 2). At this time, the control device 12 stores the acquired user's body temperature as the latest user's body temperature TL. Note that in the user's body temperature information 18, the user's body temperature that was previously the latest user's body temperature TL is managed as a past user's body temperature. In addition, the "latest user's body temperature TL" in the judgment result information 23 (see FIG. 5) is also updated in conjunction with the "latest user's body temperature TL" in the user's body temperature information 18.

[0033] For example, when user B passes through the security gate 40, the control device 12 acquires user B's user identification information: U02 and user body temperature: 38.3°C, associates them, and stores them in the user body temperature information 18. At this time, the control device 12 stores the acquired user body temperature: 38.3°C as the latest user body temperature TL of user B. In addition, the latest user body temperature TL of user B in the judgment result information 23 (see FIG. 5) is also updated.

[0034] Then, the control device 12 updates the "body temperature judgment result" and "accessible room rank" of the user whose latest user body temperature TL has been updated in the judgment result information 23 (see FIG. 5). In the above example, since the latest user body temperature TL of user B has been updated, the control device 12 updates the "body temperature judgment result" and "accessible room rank" of user B. Specifically, since the latest user body temperature TL of user B is 38.3°C (≧threshold 37.0°C), the control device 12 updates the "body temperature judgment result" of user B to abnormal body temperature and updates the "accessible room rank" to only rank B.

[0035] The user 92 then passes through the security gate 40 and enters the restricted area. The user 92 then brings the ID card 96 close to the tag reader 30 of the room 82 that the user 92 wishes to enter, thereby unlocking the electric lock 34 of the door 50 of that room 82. The tag reader 30 to which the ID card 96 is brought close acquires the user identification information stored in the ID card 96, and transmits to the control device 12 a request to unlock the electric lock 34 associated with that tag reader 30 (an unlock request) together with the acquired user identification information.

[0036] The control device 12 receives the user identification information and the unlocking request from the tag reader 30. Then, the control device 12 refers to the determination result information 23 (see FIG. 5) to acquire the "rank of the accessible room" associated with the received user identification information. The control device 12 also refers to the rank information 20 (see FIG. 3) to acquire the "rank" associated with the room for which the unlocking request has been issued.

[0037] Then, if the acquired "rank of accessible rooms" includes the "rank" of the room for which the unlocking request has been made, the control device 12 performs control to unlock the electric lock 34 for which the unlocking request has been made, and if not, performs control to avoid unlocking the electric lock 34 for which the unlocking request has been made.

[0038] For example, when user B approaches his / her ID card 96 to the tag reader 30 of room 82-1 (first conference room), the control device 12 obtains rank B (rank of accessible rooms) associated with user B (user identification information: U02) from the determination result information 23 (see FIG. 5), and obtains rank A associated with room 82-1 from the rank information 20 (see FIG. 3). In this case, the control device 12 avoids unlocking the electric lock 34 of room 82-1 for which the unlocking request was issued, because the rank (rank A) of room 82-1 for which the unlocking request was issued is not included in the rank (rank B) of accessible rooms. In other words, the control device 12 does not unlock the electric lock 34.

[0039] On the other hand, when user B brings his / her ID card 96 close to the tag reader 30 in room 82-2 (large office room), the control device 12 obtains rank B (the rank of the accessible room) associated with user B (user identification information: U02) from the determination result information 23 (see FIG. 5), and obtains rank B associated with room 82-2 from the rank information 20 (see FIG. 3). In this case, the control device 12 unlocks the electric lock 34 of room 82-2 for which the unlocking request was made, because the rank (rank B) of the room 82-2 for which the unlocking request was made is included in the rank (rank B) of the accessible rooms.

[0040] In this way, for a user with an abnormal body temperature such as User B, the only "accessible room rank" is B, so if the "rank" of the room for which the unlocking request is made is B (population density: low), the electric lock 34 will be unlocked in response to the unlocking request, but if the "rank" of the room for which the unlocking request is made is A (population density: high), the unlocking of the electric lock 34 will be avoided.

[0041] In addition, for a user with normal body temperature (for example, user A in Figure 5), the "accessible room rank" is A or B, which always includes the "rank" (A or B) of the room for which an unlocking request is made, and the electric lock 34 will always be unlocked in response to the unlocking request.

[0042] According to the entry management system 10 described above, it is possible to allow a user with an abnormal body temperature to access rooms with rank B (first rank) that have a low population density, while restricting access to rooms with rank A (second rank) that have a high population density. By preventing users with abnormal body temperature from entering rooms with rank A that have a high population density, the spread of infectious diseases can be effectively suppressed.

[0043] Various functional extensions are possible for the entry management system 10. Various embodiments of the entry management system 10 will be described below.

[0044] First, an embodiment in which the rank of each room in the rank information is changed will be described. Fig. 7 is a diagram showing an example of rank information 20A in this embodiment. The rank information 20A includes the number of people currently in each room (current number of people), and in this embodiment, the rank of each room in the rank information 20 is changed according to the current number of people in each room.

[0045] As shown in FIG. 1, a camera 24 is installed in each room 82. The camera 24 is a detection means for detecting people (users 92) in the room 82. Each camera 24 is electrically connected to the control device 12, and a captured image (detection result) is transmitted from each camera 24 to the control device 12. The control device 12 receives the captured image from each camera 24 and analyzes each captured image using existing technology to obtain the number of people appearing in each captured image (the number of people currently in each room 82). Then, the control device 12 links room identification information and the number of people currently in the room (the current number of people) for each room, as in the rank information 20A in FIG. 7. Note that the detection means for detecting people in the room may be a device other than the camera 24.

[0046] The rank information 20A includes the area of ​​each room. The control device 12 calculates the area per person by dividing the room area in the rank information 20A by the current number of people for each room. Then, when the area per person is less than a threshold value (e.g., 8 m), the control device 12 2), the room is assigned a B rank (population density: low) and the area per person is less than a threshold (e.g. 8 m 2 ), the room is assigned an A rank (high population density).

[0047] The control device 12 uses such rank information 20A (see FIG. 7) instead of the rank information 20 (see FIG. 3) to perform the above-mentioned entry management of the user 92. According to this embodiment, the rank of each room in the rank information 20A varies based on the current population density of each room 82, so that a user 92 with an abnormal body temperature can currently access a room with a low population density and can be restricted from accessing a room with a high population density.

[0048] In the embodiment described above, the camera 24 is used to obtain the number of people in each room, but it is also possible to obtain the number of people in each room without using the camera 24. This will be described below. This is to obtain the number of people in the room (the current number of people) based on the number of entry operations and the number of exit operations by the user 92.

[0049] As shown in FIG. 1, a tag reader 32 (also called an exit operation unit 32) that receives an unlocking operation of an electric lock 34 of the door 50 from a user 92 is disposed on a wall near the door 50 inside each room 82. Each tag reader 32 is electrically connected to the control device 12. When an ID card 96 held by a user 92 is brought close to the tag reader 32, the tag reader 32 transmits a request (unlock request) to the control device 12 to unlock the electric lock 34 of the door 50 provided near the tag reader 32. The control device 12 receives the request and unlocks the electric lock 34 for which the unlocking request has been issued. The exit operation unit 32 may be a face authentication camera instead of a tag reader. The exit operation unit 32 may also be a device for performing biometric authentication other than face authentication. This is the same as the entry operation unit 30 described above.

[0050] FIG. 8 is a diagram showing an example of the rank information 20B of this embodiment. The rank information 20B includes the number of entry operations, the number of exit operations, and the current number of people for each room. The number of entry operations is the number of times the user 92 operates the entry operation unit 30 (in this example, the ID card 96 is brought close to the tag reader 30) to unlock the electric lock 34, and the number of exit operations is the number of times the user 92 operates the exit operation unit 32 (in this example, the ID card 96 is brought close to the tag reader 32) to unlock the electric lock 34. The control device 12 counts the number of times the electric lock 34 is unlocked by operating the entry operation unit 30 and the number of times the electric lock 34 is unlocked by operating the exit operation unit 32 for each room, thereby updating the number of entry operations and the number of exit operations for each room in the rank information 20B. In addition, the control device 12 resets the number of entry operations and the number of exit operations for each room in the rank information 20B to 0, for example, at midnight or early in the morning every day. The current number of people in each room in the rank information 20B is the number obtained by subtracting the number of exit operations from the number of entry operations for each room.

[0051] In this embodiment, similarly to the above embodiment, the rank of each room in the rank information 20B is changed according to the current number of people in each room. That is, the control device 12 calculates the area per person by dividing the room area in the rank information 20B by the current number of people for each room, and when the area per person exceeds a threshold value (e.g., 8 m), 2 ), the room is assigned a B rank (population density: low) and the area per person is less than a threshold (e.g. 8 m 2 ), the room is assigned an A rank (high population density).

[0052] The control device 12 uses such rank information 20B to perform the above-mentioned entry management of the user 92. In this embodiment as well, the rank of each room in the rank information 20B varies based on the current population density of each room 82, so that a user 92 with an abnormal body temperature can currently access a room with a low population density, but can be restricted from accessing a room with a high population density.

[0053] In the above-described embodiments, the rank of each room in the rank information 20A, 20B is set based on the number of people currently in each room, but the rank of each room in the rank information 20A, 20B may be set based on the number of people who have been in each room in the past. For example, the control device 12 may grasp the tendency of the number of people in each room for each day of the week and for each time period of the day using the above-described camera 24 or the room entry operation unit 30 and the room exit operation unit 32, and use the grasped tendency to change the rank of each room in the rank information 20A, 20B for each day of the week and for each time period of the day.

[0054] Next, an embodiment of abnormal body temperature determination using the normal body temperature of the user 92 will be described. The normal body temperature of each user 92 varies, and even if the body temperature of each user is compared with a predetermined threshold, there is a possibility that an accurate abnormal body temperature determination cannot be performed. Therefore, in this embodiment, abnormal body temperature is determined by taking into account the normal body temperature of the user 92. The user body temperature information 18 (see FIG. 1) includes the "past user body temperature" of each user. The control device 12 calculates, for each user, the average value of the most recently acquired multiple body temperatures (e.g., 10, a predetermined number) from the "past user body temperatures" of the user body temperature information 18 as the normal body temperature TA.

[0055] FIG. 9 is an example of the judgment result information 23A of this embodiment. The judgment result information 23A includes the normal body temperature TA of each user calculated as described above. The control device 12 calculates the difference TD (body temperature difference TD) between the latest user body temperature TL and the normal body temperature TA for each user. Then, when the body temperature difference TD for each user is equal to or greater than a threshold value (e.g., 0.7°C), the control device 12 judges that the latest user body temperature TL is an abnormal body temperature, and when the latest user body temperature TL is less than the threshold value (e.g., 0.7°C), the control device 12 judges that the latest user body temperature TL is a normal body temperature. The control device 12 sets the judgment result as the body temperature judgment result of the judgment result information 23A.

[0056] Then, as in each of the above-mentioned embodiments, the control device 12 refers to the control information 22 (see FIG. 6) to set an "accessible room rank" for each user corresponding to normal (normal body temperature) or abnormal (abnormal body temperature) of the "body temperature judgment result" in the judgment result information 23A (see FIG. 9). The control device 12 then uses such judgment result information 23A instead of the judgment result information 23 (see FIG. 5) to perform the above-mentioned entry management of the user 92. According to this embodiment, the latest user body temperature TL of each user 92 is determined taking into account the normal body temperature of each user 92, so that the "accessible room rank" of each user 92 becomes more accurate.

[0057] The user's body temperature is acquired by the thermal camera 46 (see FIG. 1) detecting the body surface temperature of the user. Since the body surface temperature of the user fluctuates depending on the outside air temperature, etc., the user's body temperature output by the thermal camera 46 may be inaccurate. Therefore, the control device 12 may correct the user's body temperature acquired from the thermal camera 46 based on at least one of the time period, the outside air temperature, the weather, and the season when the thermal camera 46 acquires the user's body temperature, and record the corrected user's body temperature in the user's body temperature information 18. For example, if the condition is such that the body surface temperature rises (for example, the time period is daytime and the weather is sunny, etc.), the control device 12 may correct the user's body temperature acquired from the thermal camera 46 by multiplying it by a correction coefficient less than 1.0. Also, if the condition is such that the body surface temperature falls (for example, the time period is early morning and the weather is rainy or snowy, etc.), the control device 12 may correct the user's body temperature acquired from the thermal camera 46 by multiplying it by a correction coefficient greater than 1.0.

[0058] The control device 12 may also correct the threshold value (threshold value shown in Figs. 5 and 9) used to determine whether or not the body temperature is abnormal, based on at least one of the time period, outside temperature, weather, and season when the thermal camera 46 acquires the latest user body temperature TL. For example, if the conditions are such that the body surface temperature rises (for example, the time period is daytime and the weather is sunny, etc.), the latest user body temperature TL rises, so the control device 12 may multiply the threshold value in Fig. 5 by a correction coefficient greater than 1.0 to correct it accordingly. For example, if the conditions are such that the body surface temperature falls (for example, the time period is early morning and the weather is rainy or snowy, etc.), the latest user body temperature TL falls, so the control device 12 may also multiply the threshold value in Fig. 5 by a correction coefficient less than 1.0 to correct it accordingly. In addition, for example, under conditions where the body surface temperature fluctuates greatly (such as the above-mentioned conditions where the body surface temperature rises or falls), the latest user body temperature TL is likely to deviate from the normal body temperature TA, so the control device 12 may multiply the threshold value in Figure 9 by a correction coefficient greater than 1.0 to correct it accordingly.

[0059] Next, an embodiment having three or more population density ranks will be described. In the above-described embodiment, the population density ranks are two levels, A and B, but the population density ranks may be three or more levels. FIG. 10 shows three population density ranks. In the figure, the rank types are rank B2 (first rank) with a low population density, rank A (second rank) with a high population density, and rank B1 (third rank) with a higher population density than rank B2 and lower population density than rank A.

[0060] FIG. 11 is a diagram showing an example of rank information 20C in this embodiment. In the rank information 20C, three ranks are set for each room. The rank of each room may be predetermined and fixed, or may vary depending on the number of people currently in the room, as described with reference to FIGS. 7 and 8. For example, as shown in FIG. 10, the control device 12 determines whether the area per person in the room is greater than a second threshold (e.g., 14 m2). 2) or more, rank B2 (population density: low) is set, and the area per person in the room is set to the second threshold (for example, 14 m 2 ) and a first threshold value (e.g., 8m) that is smaller than the second threshold value 2 ) or more is set to rank B1 (medium population density), and the area per person in the room is set to the first threshold (e.g. 8m 2 ) may be set to rank A (population density: high).

[0061] 12 is a diagram showing an example of the determination result information 23B in this embodiment. The control device 12 determines that the user's body temperature TL is an abnormal body temperature when the latest user's body temperature TL is equal to or higher than a first threshold (e.g., 37.5°C), determines that the user's body temperature TL is a sub-abnormal body temperature when the latest user's body temperature TL is lower than the first threshold (e.g., 37.5°C) and equal to or higher than a second threshold (e.g., 37.0°C) that is lower than the first threshold, and determines that the user's body temperature TL is a normal body temperature when the latest user's body temperature TL is lower than the second threshold (e.g., 37.0°C).

[0062] FIG. 13 is a diagram showing an example of the control information 22A of this embodiment. The control information 22A indicates that a user with normal body temperature can access any room of ranks A, B1, and B2, and that a user with quasi-abnormal body temperature can access rooms of ranks B1 (third rank, population density: medium) and B2 (first rank, population density: low), but cannot access rooms of rank A (second rank, population density: high). The control information 22A also indicates that a user with abnormal body temperature can access rooms of rank B2 (first rank, population density: low), but cannot access rooms of rank A (second rank, population density: high) and B1 (third rank, population density: medium). The control device 12 refers to the control information 22A to set, for each user, the "rank of accessible rooms" corresponding to normal body temperature, quasi-abnormal body temperature, and abnormal body temperature in the "body temperature judgment result" of the judgment result information 23B (see FIG. 12).

[0063] Then, the control device 12 uses the judgment result information 23B (see FIG. 12) and the rank information 20C (see FIG. 11) to perform the entry management of the user 92. That is, when the "rank" of the room for which the unlocking request has been made is included in the "rank of accessible rooms" of the user who has made the unlocking request for the electric lock 34, the control device 12 performs control to unlock the electric lock 34 for which the unlocking request has been made, and otherwise performs control to avoid unlocking the electric lock 34 for which the unlocking request has been made.

[0064] For example, since user C has a sub-abnormal body temperature, the "accessible room rank" is B1 or B2. When user C issues a request to unlock the electric lock 34 of room 82-3 (second conference room, rank B1) or room 82-2 (large office room, rank B2) using his / her ID card 96, the control device 12 unlocks the electric lock 34 to allow user C to access room 82-3 or 82-2. On the other hand, when user C issues a request to unlock the electric lock 34 of room 82-1 (first conference room, rank A) using his / her ID card 96, the control device 12 avoids unlocking the electric lock 34 to prevent user C from accessing room 82-1.

[0065] According to this embodiment, it is possible to more flexibly manage the entry of users in accordance with the latest user body temperature TL of each user.

[0066] In the above-described embodiment, the latest user's body temperature TL is compared with two thresholds to determine whether the body temperature is sub-abnormal or abnormal. However, the body temperature difference TD described with reference to FIG. 9 may be compared with two thresholds to determine whether the body temperature is sub-abnormal or abnormal. FIG. 14 is a diagram showing an example of the determination result information 23C in the embodiment. When the body temperature difference TD is equal to or greater than a first threshold (e.g., 1.1°C), the control device 12 determines that the latest user's body temperature TL is an abnormal body temperature. When the body temperature difference TD is lower than the first threshold (e.g., 1.1°C) and equal to or greater than a second threshold (e.g., 0.6°C) that is lower than the first threshold, the control device 12 determines that the latest user's body temperature TL is a sub-abnormal body temperature. When the body temperature difference TD is less than the second threshold (e.g., 0.6°C), the control device 12 determines that the latest user's body temperature TL is a normal body temperature.

[0067] Then, the control device 12 sets, for each user, an "accessible room rank" corresponding to normal body temperature, near-abnormal body temperature, and abnormal body temperature in the "body temperature judgment result" in the judgment result information 23C (see FIG. 14) by referring to the control information 22A (see FIG. 13). The control device 12 then uses the judgment result information 23C (see FIG. 14) and the rank information (see FIG. 11) to perform the above-mentioned entry management of the user 92. Even in this way, it is possible to perform more flexible user entry management according to the latest user body temperature TL of each user.

[0068] In each embodiment described above, the user identification information and the user body temperature are acquired by the tag reader 42 and the thermal camera 46 of the security gate 40 installed in the entrance hall of the building 80. However, the user identification information and the user body temperature may be acquired by the tag reader 42 and the thermal camera 46 of the security gate 40 installed in a part of the building 80 other than the entrance hall. The user body temperature may also be acquired by a device other than the thermal camera 46.

[0069] In addition, the "door" in this specification may be, for example, a gate flapper of a gate (such as a security gate) installed between a room and a corridor. Also, the "electric lock" in this specification may be, for example, an opening and closing mechanism of a gate flapper installed between a room and a corridor. In this case, "unlocking the electric lock" means opening the gate flapper, and "avoiding unlocking the electric lock" means keeping the gate flapper in a closed state. [Explanation of symbols]

[0070] 10 entrance management system, 12 control device (entrance management device, computer), 14 processor, 16 storage device, 18 user body temperature information, 20, 20A, 20B, 20C rank information, 22, 22A control information, 23, 23A, 23B, 23C judgment result information, 24 camera (detection means), 30 tag reader (entry operation unit), 32 tag reader (exit operation unit), 34 electric lock, 40 security gate, 42 tag reader, 46 thermal camera, 50 door, 80 building, 82, 82-1, 82-2, 82-3 room, 92 user, 96 ID card (IC tag).

Claims

1. a storage device that stores user body temperature information that associates user identification information and the user body temperature acquired when the user passes through a security gate of a building, and rank information that indicates a rank of the population density of each of a plurality of rooms in the building; a control device that receives an unlocking request and controls an electric lock provided on a door of each of the rooms in the building, and acquires user identification information of a user who issues the unlocking request; The ranks of the rank information include a first rank and a second rank having a higher population density than the first rank, The control device includes: Determine whether the user's body temperature, which is linked to the user identification information of the user who issues the unlock request, in the user's body temperature information is an abnormal body temperature; unlocking an electric lock of a room having the first rank in response to a request to unlock the electric lock by a user having an abnormal body temperature, and avoiding unlocking the electric lock of a room having the second rank in response to a request to unlock the electric lock by the user. Entrance management system.

2. In the entrance management system according to claim 1, A detection means for detecting a person in each of the rooms is further provided, The control device includes: Obtaining the number of people in each of the rooms based on the detection result of the detection means; updating the rank of the population density of each of the rooms in the rank information based on the number of people in each of the rooms; Entrance management system.

3. In the entrance management system according to claim 1, an entry operation unit provided near the door on the outside of the room and receiving an operation for unlocking the electric lock of the door from a user; and an operation unit for exiting the room, the operation unit being provided in the vicinity of the door inside the room and receiving an operation for unlocking the electric lock of the door from a user. The control device includes: updating the rank of the population density of each of the rooms in the rank information based on the number of times each of the room entry operation unit and the room exit operation unit is operated; Entrance management system.

4. In the entrance management system according to claim 1, The user's body temperature in the user's body temperature information is the latest user's body temperature, The user temperature information further includes a past user temperature associated with user identification information and acquired each time a user corresponding to the user identification information passes through the security gate; The control device includes: Calculating a normal body temperature of a user corresponding to the user identification information by using the past user body temperature associated with the user identification information of the user body temperature information; When a difference between the latest user's body temperature linked to the user identification information of the user issuing the unlock request and the normal body temperature of the user in the user's body temperature information is equal to or greater than a predetermined threshold, the latest user's body temperature is determined to be an abnormal body temperature. Entrance management system.

5. In the entrance management system according to claim 4, A thermal camera is further provided to capture the user body temperature of a user passing through the security gate, The control device includes: Correcting the latest user body temperature or the threshold value based on at least one of a time period, an outside temperature, a weather condition, and a season when the thermal camera acquires the latest user body temperature; The abnormal body temperature is determined using the corrected latest user body temperature or the threshold value. Entrance management system.

6. In the entrance management system according to claim 1, the ranks of the rank information further include a third rank having a population density higher than the first rank and lower than the second rank; The control device includes: When the user's body temperature information, which is linked to the user identification information of the user who issues the unlock request, is equal to or higher than a predetermined first threshold, the user's body temperature is determined to be the abnormal body temperature; When the user's body temperature information, which is linked to the user identification information of the user who issues the unlock request, is lower than the first threshold and is equal to or higher than a second threshold that is lower than the first threshold, the user's body temperature is determined to be a sub-abnormal body temperature; avoiding unlocking of an electric lock in a room having the third rank in response to a request to unlock the electric lock by the user having the abnormal body temperature; unlocking an electric lock of a room having the first or third rank in response to a request to unlock the electric lock by a user having the sub-abnormal body temperature, and avoiding unlocking the electric lock of a room having the second rank in response to a request to unlock the electric lock by the user. Entrance management system.

Images