JP2022032808A - Infection prevention system - Google Patents

Abstract

To reduce the risk of an infectious disease.SOLUTION: An infection prevention system comprises: an elevator control unit that controls to raise and lower a car carrying a user; a user information acquisition device that acquires information on the user who gets in and gets off the car; and a management device that generates index data indicating the risk related to an infectious disease for every floor by using information on the operation of the elevator control unit and the actual results of the user's getting on and off, and notifies a manager and/or the user of the index data.SELECTED DRAWING: Figure 1

Description

The present invention relates to an infection prevention system in a building in which an elevator is installed.

Conventionally, as a method of grasping and suppressing admission of fever due to infection, a temperature sensor such as an infrared camera installed at the building entrance or a security gate in the building has been used, and when a fever is determined, an alert is issued and waiting. A method is known to prevent the guard man from invading the person any more.

Further, regarding the above-mentioned method, an elevator interlocking control method is disclosed in which the flapper gate is closed when a fever is determined, the passage is automatically prohibited without human intervention, and the call registration of the elevator beyond that is restricted (patent). Document 1).

International release number WO 2017/057274 A1

In the technology described in Patent Document 1, the security gate user identifies an individual by holding an ID card over the security gate to prevent intrusion of heat-generating persons and restricts elevator call registration, and the temperature sensor provided detects heat generation. Is going. In this conventional technique, since only the presence or absence of fever is detected, invasion is restricted only to those with high fever, and therefore, for example, it is not possible to deal with an infectious disease having infectivity before the onset. Particularly in recent years, the occurrence of a dense state itself is recognized as a risk of infection regardless of the presence or absence of illness, and a reduction in the risk is required.

In other words, conventional techniques only contribute to one-sided risk aversion of preventing contact with people after onset, and comprehensively consider the various risks of infectious diseases to prevent infectious diseases. I couldn't do it.

From the above, it is an object of the present invention to comprehensively consider various risks of infectious diseases and reduce the risk of infectious diseases.

In order to achieve the above object, the infection prevention system according to the present invention includes an elevator control device for raising and lowering a car carrying a user, a user information acquisition device for acquiring information on a user getting on and off the car, and a user information acquisition device. A management device that uses the operation information from the elevator control device and the boarding / alighting record of the user to generate index data indicating the risk of infectious diseases for each floor, and notifies the manager and / or the user of the index data. It is characterized by having and.

According to the present invention, the risk of infectious disease can be reduced.

The figure which shows an example of the whole structure of the elevator system, the infrared camera, the management server, and the dashboard which concerns on embodiment of this invention. The figure which shows an example of collective management of personal identification and body temperature measurement which concerns on embodiment of this invention. The flowchart which shows the flow which distributes the body temperature and the density | density for each floor which concerns on embodiment of this invention, and discloses the information to a user. The figure which shows an example of the content of information disclosure to the general user which concerns on FIG. The figure which shows an example of the content of information disclosure to the building manager which concerns on FIG. FIG. 3 is a flowchart showing an example of prohibiting the operation of an elevator according to the density of each floor according to FIG. FIG. 3 is a flowchart showing an example of limiting the operation of an elevator according to the density of each floor according to FIG.

Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an example of the overall configuration of an elevator system, an infrared camera, a management server, and a dashboard included in the infection prevention system according to the embodiment of the present invention. The elevator has an elevator control device 1 for controlling the operation and a car 2 for passengers who are users to get on and off. A building in which a plurality of elevators are installed is equipped with a group management control device 4 in order to appropriately control the entire elevator and stabilize the operation efficiency. If the number of elevators is small, such as one or two, the group management control device 4 may not be attached, but each function (described later) in the group management control device 4 is incorporated into the elevator control device 1. Therefore, each function of the group management control device 4 can be realized. In this embodiment, the group management control device 4 is described as having a certain object.

The elevator control device 1 is composed of an operation control unit 11 that controls operation, a call button detection unit 12 that detects an operation in the car 2, and an operation control unit 11 that receives detection information from the above-mentioned call button detection unit 12. A call registration unit 13 that performs a call registration operation based on control, a car camera information acquisition unit 14 that acquires information on an infrared camera in the car 2, and an announcement that notifies operation information such as a floor (floor) in the car 2. The playback unit 15, the car communication unit 16 for communicating with the car 2 via the above-mentioned units 12 to 15, and the group management control device 4 and the elevator operation status / operation control and the information of the infrared camera in the car are communicated. A group management control device communication unit 17 is provided for this purpose.

The car 2 has a car call button 21 operated to operate to each floor, an infrared camera 22 in the car capable of photographing the situation inside the car, and performing personal identification and body temperature measurement of passengers, a floor in the car, and the like. It is equipped with a speaker 23 that announces operation information and the like. The in-car infrared camera 22 includes a visible light camera unit that captures an image in a visible light region as a color image, in addition to an infrared camera unit that acquires a temperature distribution as an image.

The elevator hall 3 on each floor is equipped with a hall infrared camera 31 capable of photographing the situation of the hall (elevation area), identifying passengers individually, and measuring body temperature. The hall infrared camera 31 includes a visible light camera unit that captures an image in a visible light region as a color image, in addition to an infrared camera unit that acquires a temperature distribution as an image. The image taken by the infrared camera unit is used for measuring the body temperature of the passenger, and the image taken by the visible light camera unit is used for personal identification. Further, although not shown, the elevator hall 3 is provided with a hall button which is a call button for designating either the upper side or the lower side as the destination direction.

The group management control device 4 manages to communicate with the elevator communication unit 41 for communicating with the elevator control device 1, the hall camera information acquisition unit 42 for acquiring information of the hall infrared camera on each floor, and the management server 5. It is provided with a server communication unit 43.

The building is provided with a management server 5 as a management device for managing the state of the entire building. The management server 5 operates a group management control device communication unit 51 for communicating with the group management control device 4, a camera information acquisition unit 52 for acquiring information of the infrared camera 22 in the car and the hall infrared camera 31, and an elevator operation. It is provided with an elevator information acquisition unit 53 for acquiring a state (currently stopped on which floor, moving toward which floor, etc.). The recording unit 54 records current / past information (elevator operation information, personal identification information from a camera, body temperature information). Further, the recording unit 54 also records the total floor area of each floor of the building.

Further, the management server 5 has a function of visualizing information to the user as a dashboard, and the manager information disclosure unit 55 that extracts and discloses information for the administrator (including personal information) from the recording unit 54. And the user information disclosure unit 56 that extracts and discloses information to general users (not including personal information), and to communicate this information with the personal computers and smartphones of managers and general users to disclose information. The terminal communication unit 57 is provided.

When a user gets into the elevator car 2, he / she is always in the elevator hall 3 on some floors, so that the user can be personally identified and the body temperature can be measured by taking a picture with the hall infrared camera 31 on that floor. When the user gets into the car 2, the infrared camera 22 in the car takes a picture, so that the user can be personally identified and the body temperature can be measured, and the management information can be updated. Further, even when the car 2 is lowered to another floor, it can be managed by the hall infrared camera 31 on that floor.

Furthermore, by acquiring the operating status of the elevator control device 1, the management server comprehensively covers the floors where the users went down, the floors that stopped halfway by the time they arrived at the destination floor, and other users who were on board. It is also possible to manage.

Although more accurate management can be performed by managing the inside of the car, the present invention can be realized only by the hall infrared camera 31 by acquiring the operation of the elevator. Since the direction of the person is reversed 180 degrees when getting in and out of the car 2, consider that the face cannot be seen by the hall infrared camera 31, and further identify the clothes and colors based on face recognition. Therefore, more accurate management can be performed.
By performing the above-mentioned management for all people in the building, overall management becomes possible.

FIG. 2 is a diagram showing an example of collective management of personal identification and body temperature measurement according to an embodiment of the present invention. This figure shows, as an example, the contents of performing individual identification and body temperature measurement on five persons and managing them by the recording unit 54. The in-car infrared camera 22 or the hall infrared camera 31 is assigned a camera identification number for each individual in order to connect to the management server 5. Since the floor / car on which the camera identification number is installed is predetermined, it is possible to know which place the person was detected by acquiring the information from the camera.

For example, when the hall infrared camera 31 takes a picture of Mr. A waiting for the elevator in the 1st floor hall, the management server 5 says "Individual identification: Mr. A, body temperature: 35.5 ° C., shooting location: 1F hall, measurement date and time: It is recorded as "6/19 12:10". After that, when Mr. A got into the car 2, the image was taken by the infrared camera 22 in the car, and the management server 5 showed "Individual identification: Mr. A, body temperature: 35.7 ° C, shooting place: in the car of Unit 2, measurement date and time: It is recorded as "6/19 12:11", and the previously recorded information is saved as the previous information.
The same applies to Mr. B and later, and the recorded information is updated and accumulated every time a picture is taken with each infrared camera.

FIG. 3 is a flowchart showing a flow of distributing body temperature and density for each floor according to an embodiment of the present invention and disclosing information to users. As described with reference to FIG. 2, it is assumed that the management server 5 constantly collects and updates the information of the person in the building in advance. Further, the process shown in FIG. 3 is executed every time a user gets on and off, for example.

In step S101, the latest information of each individual is extracted from the management information table recorded in the recording unit 54 of the management server 5. This latest information includes the date and time of recording, personal ID information, recording location, and measured body temperature.
In step S102, the body temperature distribution set in advance for the extracted person (for example, “less than 35 ° C”, “35 to 35.9 ° C”, “36 to 36.9”, “37 to 37.4 ° C”, “37.5 ° C”. And classify by floor / basket on each floor.
In step S103, since it is known how many people are on each floor / basket from the classified information, the density is calculated based on the number of people. Here, the density is calculated from the effective floor area of each floor, the social distance area per person (for example, 2 m × 2 m × π = 12.6 m ² ) and the number of people. In addition, the density of people for each body temperature distribution (16% of the 37 ° C level is on the 3rd floor, etc.) is also calculated.
Step S104 represents the result calculated in step S103, and discloses the information to the user via the terminal communication unit of the management server 5.
By repeating the flow described above, it is possible to disclose the density and body temperature of each floor to the user in real time.

FIG. 4 is a diagram showing an example of the content of information disclosure to the general user according to FIG.
The information calculated in step S103 of FIG. 3 is disclosed to the user as shown in the table of FIG. As explained above, it is possible to know how many people have a body temperature on each floor or basket of a building, and what percentage of the density is on each floor. In addition, although this figure is an example, if 37 ° C or higher is set as caution and 37.5 ° C or higher is set as a warning, the floor with people above 37 ° C and the floor with people above 37.5 ° C are bordered. It is shown by coloring and coloring, and measures are taken to call attention to the user. Although not represented in this figure, similarly, when the density is 50% or more and 80% or more, a measure for visually calling attention may be taken.

That is, the number of people on each floor, the degree of density, and the body temperature distribution are used as index data indicating the risk of infectious diseases for each floor. Further, for example, if the body temperature is 37 ° C. or higher or 37.5 ° C. or higher as the specified risk or higher, the floor satisfying these conditions is the risk detection floor. The risk detection floor may have any of a plurality of indicators such as number of people, density, and body temperature above the specified value. In addition, a plurality of stages may be provided for the same index.

In addition, the body temperature may rise temporarily when entering the building or when exercising in the building, but if the body temperature measured by the person concerned exceeds 37 ° C or 37.5 ° C, that is also the case. Judging from the body temperature state before and after (for example, the increase in body temperature is within 10 minutes), the attention may be released.

FIG. 5 is a diagram showing an example of the content of information disclosure to the building manager according to FIG.
As in FIG. 4, it can be visualized to call attention, but since the management server 5 also acquires the personal identification information, the building manager is notified of the personal information of the fever. In this figure, a person with a fever of 37.5 ° C. is detected on the 4th floor, and the building manager can confirm the personal information by selecting the corresponding place. In the explanation of this figure, Mr. F is taken as an example, but by checking in chronological order the information taken by the infrared camera in the past, in addition to what floor Mr. F is currently on and what the body temperature is. You can check what kind of action Mr. F is taking.

As a matter of course, since the management server 5 records the information of all the members, it is possible to mark the person who is suspected of having contacted the time when Mr. F acted.
As an example, when another person including Mr. F is photographed at the same time with one infrared camera and the state of being at the same time for a certain period of time continues, or when Mr. F is photographed, another person is photographed several seconds before and after. If so, other people can be marked.

FIG. 6 is a flowchart showing an example of prohibiting the operation of the elevator according to the density of each floor according to FIG. Since steps S101 to S104 have the same contents as those in FIG. 3, description thereof will be omitted. In the flowchart shown in FIG. 6, the process proceeds to step S201 after step S104.

In step S201, the management server 5 confirms a floor with a large number of heat generators or a floor with a high degree of congestion. Here, the 4th floor shown in FIGS. 4 and 5 will be described as a floor with a large number of fever and a high degree of density (risk detection floor).
In step S202, since the 4th floor is a floor with a high degree of heat generation and density (risk detection floor), it becomes Yes and the process proceeds to step S203.

In step S203, the management server 5 communicates with the elevator control device 1 via the group management control device 4 that the call registration is prohibited on the corresponding floor. The elevator control device 1 prohibits the 4th floor registration of the call registration unit 13 by receiving the 4th floor call registration prohibition.
Although not shown, registration on the 4th floor is prohibited, and when the car infrared camera 22 detects that there is a person in the car 2, or when the user gets into the car 2 and presses the 4th floor call button. , "Currently the 4th floor is very dense and the operation is temporarily prohibited due to the risk of infection" and "Currently there are people who are suspected of having a fever on the 4th floor and there is a risk of infection. The announcement playback unit 15 replays messages such as "The operation is temporarily prohibited" and "Please access the building dashboard for details" from the speaker 23 to alert the user.

After step S203, the process returns to step S101.
If there is no corresponding floor due to the passage of time, the density decreases, the number of fever disappears, etc. (No in the figure of step S202), the process proceeds to step S204.
In step S204, it is confirmed from the recording unit 54 of the management server 5 whether there was a floor with a high density or a fever last time. Since the 4th floor was applicable last time, it becomes Yes and the process proceeds to step S205.
In step S205, it is further determined whether a certain period of time has passed since the previously captured state. As an example, this fixed time will be described as 10 minutes. At this time, since 10 minutes have not passed, the result is No, the process returns to step S101, and this process is repeated.
After 10 minutes have passed, Yes, and the process proceeds to step S206.

In step S206, the situation where the density is low and there is no heat generation continues for 10 minutes or more, so that the management server 5 prohibits the call registration of the corresponding floor to the elevator control device 1 via the group management control device 4. Communicate the release of. Upon receiving the 4F call registration prohibition cancellation, the elevator control device 1 cancels the 4F registration of the call registration unit 13 and returns to the normal operation control.
At this time, the announcement playback unit 15 from the speaker 23 "Since the density of the 4th floor has decreased, it will return to normal operation" and "There is no person who is suspected of fever on the 4th floor, so normal operation By playing "I will return" etc., it gives the user a sense of security.

FIG. 7 is a flowchart showing an example of limiting the operation of the elevator according to the density of each floor according to FIG. Since steps S101 to S104 and steps S201, S202, S204, and S205 have the same contents as those in FIG. 6, description thereof will be omitted.

Since steps S202 and 4F are floors with high fever / density (risk detection floor), the result is Yes and the process proceeds to step S301.
In step S301, the management server 5 communicates the call registration caution of the corresponding floor to the elevator control device 1 via the group management control device 4. Here, an example is described in which the call registration caution is two-step verification. By receiving the 4F call registration notice, the elevator control device 1 sets the 4F registration of the call registration unit 13 as two-step verification.
Although not shown, when the 4th floor registration is two-step verification and the car infrared camera 22 detects that there is a person in the car 2, "Currently, the 4th floor is very dense and infected. "We are checking at the time of operation because there is a risk" and "Currently there is a person suspected of having a fever on the 4th floor, and we are checking at the time of operation because there is a risk of infection" and "For details, the building A message such as "Please access and check the dashboard of the user" is played back from the speaker 23 by the announcement playback unit 15 to alert the user.

In addition, when the user gets into the car 2 and presses the 4th floor call button, "Currently, the 4th floor is very dense and there is a risk of infection, so we are checking at the time of operation, but we will head. "Is it?" Or "There is a person who is suspected of having a fever on the 4th floor, and we are checking at the time of operation because there is a risk of infection. Are you going?" Playback is performed from 23, and when 4F is pressed again within a certain interval (for example, 3 seconds) from the end of playback, destination registration is performed. In that case, it is more kind to play the message "Go to the 4th floor. Please be careful".

If Yes in step S205, the process proceeds to step S302.
In step S302, the situation where the density is low and there is no heat generation continues for 10 minutes or more, so that the management server 5 pays attention to the call registration of the corresponding floor to the elevator control device 1 via the group management control device 4. Communicate the release of. Upon receiving the 4F call registration attention cancellation, the elevator control device 1 cancels the 4F registration of the call registration unit 13 and returns to the normal operation control.
At this time, the announcement playback unit 15 from the speaker 23 "Since the density of the 4th floor has decreased, it will return to normal operation" and "There is no person who is suspected of fever on the 4th floor, so normal operation By playing "I will return" etc., it gives the user a sense of security.

In the process of FIG. 7 described above, when the user presses the 4th floor, the operation is performed by two-step verification, but there is another user in the car 2 and the other user operates the call button on another floor. If so, there is a risk of infection to other users. Therefore, in addition to the two-step verification, the operation control unit 11 may perform vehicle allocation control. As an example, consider a case where Mr. A, Mr. B, and Mr. C get on the car 2 from the 1st floor and specify 2F, 4F, and 6F as destinations by operating the car call button 21, respectively. If there is no risk detection floor, the car 2 departing from the 1st floor will stop in the order of the 2nd floor, the 4th floor, and the 6th floor. Also, if there is a call from the hole button on the 3rd or 5th floor during this operation, it will also stop on the 3rd or 5th floor.

However, if the 4th floor is the risk detection floor, the operation with the 4th floor as the destination is a two-step verification operation, and when the two-step verification is performed, the car 2 is put into a dedicated operation state. In this dedicated operation state, the car 2 is excluded from the targets of calls from other floors, so that it cannot respond to calls from the hall buttons on each floor. Then, after operating to a destination (2F, 6F) other than the risk detection floor, the operation is performed to the risk detection floor (4F). That is, the car 2 passes and stops in the order of 2F, 6F, and 4F, and takes measures so as not to cause an infection risk to the people (Mr. A and Mr. C) heading to the 2nd and 6th floors. Finally, when Mr. B got off and became unmanned after arriving on the 4th floor, he returned from dedicated operation to normal operation and responded to calls from the hall buttons on each floor.

Further, the management server 5 can perform control to make the display mode related to the operation buttons corresponding to the risk detection floor different from the display mode related to the operation buttons corresponding to other than the risk detection floor. For example, if the 4th floor is a risk detection floor, by lighting the car call button 21 on the 4th floor in red, the user in the car 2 is warned that the 4th floor is a floor at risk of infection. Can be done.

As described above, in the infection prevention system according to the present embodiment, there are an elevator control device 1 that controls the raising and lowering of the car carrying the user, and a user information acquisition device that acquires information about the user getting on and off the car 2. , As a management device that generates index data indicating the risk of infectious diseases by floor using the operation information by the elevator control device 1 and the boarding / alighting record of the user, and notifies the manager and / or the user of the index data. The management server 5 of the above is provided. With such a configuration and operation, it is possible to comprehensively consider various risks of infectious diseases including the occurrence of a dense state itself and reduce the risk of infectious diseases.
Comprehensive risk consideration is a final assessment that uses assessments of multiple items. In this embodiment, the items of floor density and body temperature distribution are used, and the floor is considered to be a risk detection floor when either "the density is 50% or more" or "there is a person with a body temperature of 37 ° C or more". Although the case of performing the final evaluation of is described, the risk evaluation can be performed by any method. For example, the final score may be obtained by substituting the score for each of the number of people, the degree of density, the body temperature distribution, etc., and adding a coefficient to the score of each item. Further, the final score may be obtained by multiplying the score indicating the degree of density and the score indicating the body temperature distribution.

Further, in the present embodiment, as the user information acquisition device, an infrared camera unit that measures the body temperature of the user or a visible light camera unit that captures an image in the visible light region can be used. Then, the number of people on each floor, the degree of density, the body temperature distribution, etc. obtained by using the output of the infrared camera unit can be used as index data.

It is also possible to identify the user individually by using the shooting result of the visible light camera unit and manage the boarding / alighting record for each individual.
Further, by installing the user information acquisition device in a car or a hall which is an elevating area, it is possible to acquire the boarding / alighting record of the user.

Further, the management server 5 obtains the number of people on each floor by taking in the operation information of a plurality of cars and adding up the number of passengers getting on and off each car. In this way, when there are a plurality of elevators on one floor, the number of users located on the floor can be obtained by adding up the number of passengers in the car of each elevator. The obtained number of people may be used as index data as it is, or may be used for calculation of the degree of density and the like.
It is also possible to obtain the number of passengers from a part of a plurality of elevators, estimate the total number of passengers from the number of passengers, and obtain the number of people on the floor.

Further, the management server 5 realizes suppression of infection by prohibiting an operation of designating the risk detection floor as a destination for the risk detection floor whose index data shows a risk of more than the specified value. Alternatively, when accepting an operation for designating the risk detection floor as a destination, the infection may be suppressed by performing a notification that calls attention. Furthermore, if an operation to specify the risk detection floor as the destination is accepted, the operation is set to a dedicated operation state that is excluded from the targets of calls from other floors, and after operating to a destination other than the risk detection floor, the risk is detected. By operating on the floor, it is possible to control infection and secure access to the risk detection floor at the same time.

Further, the management server 5 makes the display mode related to the operation button corresponding to the risk detection floor in which the index data shows a risk of more than the specified value different from the display mode related to the operation button corresponding to the operation button other than the risk detection floor. , It is possible to effectively alert the users who have boarded the car.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Moreover, not only the deletion of such a configuration but also the replacement or addition of the configuration is possible.

For example, by installing an infrared camera at the entrance / exit of the building, the number of people on the floor (1st floor, etc.) that has access to the outside, the degree of density, and the body temperature distribution may be accurately obtained. Further, an infrared camera may be provided for transportation means (escalators and stairs) between floors other than the elevator.

1: Elevator control device 11: Operation control unit 12: Call button detection unit 13: Call registration unit 14: Car camera information acquisition unit 15: Announcement playback unit 16: Car communication unit 17: Group management control device communication unit 2: Car 21 : Car call button 22: Infrared camera in the car 23: Speaker 3: Elevator hall 31: Hall infrared camera 4: Group management control device 41: Elevator communication unit 42: Hall camera information acquisition unit 43: Management server communication unit 5: Management server 51: Group management control device communication unit 52: Camera information acquisition unit 53: Elevator information acquisition unit 54: Recording unit 55: Administrator information disclosure unit 56: User information disclosure unit 57: Terminal communication unit

Claims (9)

An elevator control device that controls the raising and lowering of the car carrying the user,
A user information acquisition device that acquires information about users getting on and off the car, and
A management device that uses the operation information from the elevator control device and the boarding / alighting record of the user to generate index data indicating the risk of infectious diseases for each floor, and notifies the manager and / or the user of the index data. An infection prevention system characterized by being equipped with. In the infection prevention system according to claim 1,
The user information acquisition device includes an infrared camera unit that measures the body temperature of the user.
The infection prevention system, wherein the index data generated by the management device includes any one of the number of people, the density, and the body temperature distribution of each floor obtained by using the output of the infrared camera unit. In the infection prevention system according to claim 2,
The user information acquisition device is an infection prevention system provided in the car and / or the elevating area. In the infection prevention system according to claim 3,
The management device is an infection prevention system characterized by taking in operation information of a plurality of cars and calculating the number of people on each floor by adding up the number of passengers getting on and off each car. In the infection prevention system according to claim 3,
The management device is an infection prevention system characterized by prohibiting an operation of designating a risk detection floor as a destination for a risk detection floor whose index data indicates a risk equal to or higher than a specified value. In the infection prevention system according to claim 3,
The management device is an infection prevention system characterized in that, when accepting an operation for designating a risk detection floor as a destination for a risk detection floor whose index data indicates a risk equal to or higher than a specified value, a notification is given to call attention. .. In the infection prevention system according to claim 3,
If the management device accepts an operation to specify the risk detection floor as the destination for the risk detection floor whose index data shows a risk equal to or higher than the specified value, the management device is excluded from the target of calling from other floors. An infection prevention system characterized by operating to a destination other than the risk detection floor and then operating to the risk detection floor. In the infection prevention system according to claim 6,
The car is equipped with an operation button for each floor to specify the destination floor.
The management device is characterized in that the display mode related to the operation button corresponding to the risk detection floor in which the index data indicates a risk equal to or higher than the specified value and the display mode related to the operation button corresponding to other than the risk detection floor are different. Infection prevention system. In the infection prevention system according to claim 1,
The user information acquisition device includes a visible light camera unit that captures an image in the visible light region.
The management device is an infection prevention system characterized in that the user is individually identified using the shooting result of the visible light camera unit and the boarding / alighting record is managed for each individual.

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