JP2022034951A - Mobile sterilization device, and indoor sterilization system - Google Patents

Abstract

To provide a mobile sterilization device and an indoor sterilization system capable of collecting fine particles and sterilizing.SOLUTION: A mobile sterilization device 1 of the invention comprises a sensor 112 to sense human bodies, dust-collecting means 14 to collect fine particles floating in the air, sterilizing means 11 to decompose or deactivate at least either one of viruses and germs by ultraviolet irradiation or spraying chemicals, transfer means 16 to enable autonomous travel, and control means 110 to receive information sensed by the sensor 112 and control the dust-collecting means 14, the sterilizing means 11, and the transfer means 16. The control means 110 switches operations of the dust-collecting means 14 and the sterilizing means 11 according to the information sensed by the sensor 112.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mobile sterilization device and an indoor sterilization system.

When a person enters or leaves the room, fine particles such as viruses, bacteria, and pollen attached to the person may be brought in outdoors. Alternatively, when a person carrying a virus or bacterium coughs or has a conversation, droplets containing the virus or bacterium, which are fine particles, may be scattered indoors.
In this way, the fine particles brought into the room and scattered adhere to the wall or ceiling and stay at that portion, or fall while floating in the air for a certain period of time and finally deposit on the floor or desk. In addition, the fine particles accumulated and adhered to the floor and the wall surface are re-scattered in the air by walking or contacting a person.

Fine particles floating in the air are taken into the body through the human nose and mouth, and fine particles attached to walls and desks are carried to the vicinity of the human mouth (mucous membrane) through the contact of human hands and inside the body. It is taken in by. As a result, when the fine particles are allergens such as pollen and mites, they may cause the onset of allergic diseases, and when the fine particles are viruses and bacteria, they may cause infectious diseases caused by viruses and bacteria.
Therefore, in order to suppress the onset and infection of allergic diseases and infectious diseases and prevent the spread of infection, it is effective to collect and remove fine particles floating in the room and to remove fine particles accumulated on the floor or desk. be.

Therefore, a mobile body has been proposed to disperse viruses and bacteria in the air by spraying ions and chemicals in the space according to the presence or absence of humans and their behavior so as not to harm humans. ..
For example, Patent Document 1 describes "an ion generator that emits ions or cleaning", "obtaining information on the existence of people around the outside of the housing based on an output signal from a motion sensor", and "surrounding environment". Based on the above, a self-propelled electronic device that "exhausts an air flow containing ions from an exhaust port" and "an ion can be distributed throughout the room to improve a sterilizing effect and a deodorizing effect" is described.

Further, in Patent Document 2, "a storage portion for storing the medicine is provided", "the medicine stored in the storage portion is ejected from the exhaust port together with the exhaust by the rotation of the fan motor, and the medicine is sprayed into the room. A cleaning robot with a chemical spraying function is described.
Further, in order to efficiently collect fine particles in the air, a mobile air purifier capable of performing an air purifying operation according to a person's behavior has been proposed.
For example, Patent Document 3 includes "a person detecting means for detecting the presence or absence of a person" and "a control means for controlling a drive motor and a fan motor based on the information of the person detecting means". A type air purifier is described.

Japanese Patent No. 2013-230201 Japanese Unexamined Patent Publication No. 2006-130005 Japanese Unexamined Patent Publication No. 2020-038035

By the way, since the concentration of fine particles in the air is very low, even if ions or chemicals are sprayed in the air, the ions or chemicals do not always act on the fine particles, and inactivation of fine particles such as viruses and bacteria in the air. It is difficult to disassemble.

Further, since the device for sterilizing the irradiation target with ultraviolet rays or chemicals can sterilize only the range that can be irradiated with ultraviolet rays, it is not possible to sterilize the area where the ultraviolet rays or chemicals do not reach.
In addition, with a device that disinfects objects outside the main body, it is not possible to spray chemicals that are harmful to humans in the space where people exist, so only in spaces where people are absent or in areas that do not affect people. Can only work with.

Further, in a general stationary air purifier, although fine particles floating in the air can be collected, fine particles that have fallen on the floor and adhered cannot be collected.
Hereinafter, the problems of the apparatus described in Patent Documents 1 to 3 will be described.
The self-propelled electronic device described in Patent Document 1 releases ions into the air, but as described above, it is difficult to inactivate and release fine particles such as viruses and bacteria in the air. Further, although the fine particles on the floor can be cleaned, the fine particles in the air cannot be collected.

In the cleaning robot with a chemical spraying function described in Patent Document 2, when the chemical is sprayed for pest control as described in the document, the sprayed chemical is diffused and exerts an effect. However, even if a drug effective for sterilization is sprayed by the same method, it is difficult to directly contact fine particles such as viruses and bacteria in the air to inactivate and dissociate the bacteria. In addition, although it is possible to sterilize the adhered part by adhering the drug to the wall surface, it is possible to sterilize the adhered part by spraying the drug in the form of mist, but it cannot be sterilized at the part where the agent does not adhere. .. Therefore, it is difficult to sterilize the entire subject, so it is necessary to clean it.

The mobile air purifier described in Patent Document 3 can collect fine particles such as pollen floating in the air, but cannot remove or sterilize fine particles adhering to the wall surface.
As described above, the one equipped with a mechanism for sterilizing the target by spraying and irradiating ions, chemicals, ultraviolet rays, etc. can sterilize the contact target, but collects fine particles floating in the air. It could not be sterilized.
As described above, with the conventional device, it is not possible to sterilize the contact target while collecting and sterilizing the fine particles floating in the air at the same time.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a mobile sterilization device and an indoor sterilization system capable of collecting dust and releasing bacteria of fine particles.

In order to solve the above problems, the mobile sterilizer of the present invention comprises a sensor for detecting a person, a dust collecting means for collecting fine particles suspended in the air, and a virus or a bacterium by irradiation with ultraviolet rays or spraying of a chemical. A control for controlling the dust collecting means, the sterilizing means, and the moving means by inputting the sterilizing means for decomposing or inactivating at least one of them, the moving means for enabling autonomous traveling, and the detection contents of the sensor. The control means is operated by switching between the dust collecting means and the sterilizing means according to the detection content of the sensor.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a mobile sterilization device and an indoor sterilization system capable of collecting dust of fine particles, releasing bacteria, or inactivating them.

The schematic diagram of the mobile sterilization apparatus of Embodiment 1 which concerns on this invention. A perspective view of an example of the mobile sterilizing device according to the first embodiment of the present invention as viewed from below. The control block diagram of the mobile sterilization apparatus of Embodiment 1 of this invention. The schematic diagram at the time of operation of the mobile sterilization apparatus 1 of Embodiment 1 of this invention when the user is in a room. The schematic diagram at the time of operation of the mobile sterilization apparatus 1 of Embodiment 1 of this invention in the absence of a user. The flowchart of the mobile sterilization apparatus of Embodiment 1 of this invention. The perspective view of the mobile sterilization apparatus equipped with the distance sensor of another example of Embodiment 1. FIG. The schematic diagram of the fixed type sterilization apparatus constituting the indoor sterilization system of Embodiment 2 of this invention. The schematic diagram of the operation of the indoor sterilization system of the second embodiment of the present invention when the user is in the room. The schematic diagram of the operation of the indoor sterilization system of Embodiment 2 of this invention in the absence of a user. The control block diagram of the indoor sterilization system of Embodiment 2 of this invention. The flowchart of the control of the indoor sterilization system of Embodiment 2 of this invention. The schematic diagram at the time of operation of the indoor sterilization system of Embodiment 3 of this invention. The schematic diagram of the mobile sterilization apparatus of Embodiment 4 of this invention. The schematic diagram of the operation of the indoor sterilization system of another embodiment of the present invention when the user is in the room. The schematic diagram of the operation of the indoor sterilization system of another embodiment of the present invention when the user is in the room.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
<< Embodiment 1 >>
FIG. 1 shows a schematic diagram of the mobile sterilizing device 1 according to the first embodiment of the present invention.
The mobile sterilization apparatus 1 of the first embodiment of the present invention will be described.

[overall structure]
First, the configuration of the mobile sterilization device 1 according to the first embodiment of the present invention will be described with reference to FIG.
The mobile sterilization device 1 includes an ultraviolet irradiation unit 11, an intake port 12, and an exhaust port 13 on the outer shell of the main body 1H, and a drive wheel 16 below the main body. The mobile sterilization device 1 can move autonomously by the drive wheel 16 of the moving means.

The ultraviolet irradiation unit 11 which is a sterilization means irradiates the ultraviolet 101. By irradiating with ultraviolet rays 101, viruses and bacteria adhering to the surface of the irradiation target can be decomposed, antibacterial (disinfected) or inactivated.
Inside the mobile sterilization device 1, a centrifugal impeller 14, a filter 15, a control unit 110, a communication unit 111, a human detection sensor 112, and a dust sensor 113 are provided.

The centrifugal impeller 14 is a dust collecting means. By operating the centrifugal impeller 14, the intake air 102 containing dust on the floor surface Y is taken in from the intake port 12. Dust is removed from the sucked air by the filter 15. Then, the clean air 103 cleaned through the filter 15 is discharged from the exhaust port 13.
The filter 15 is a fine-grained filter such as a ULPA filter and a HEPA filter, and can collect fine particles such as viruses and bacteria.
[Floor brush]

FIG. 2 shows a perspective view of an example of the mobile sterilizing device 1 according to the first embodiment of the present invention as viewed from below.
As shown in FIG. 2, if the floor brush 17 is provided near the intake port 12 to scoop out the fine particles adhering to the floor surface Y, the fine particles adhering to the floor surface Y are scooped out and the air intake port 12 (FIG. 2). It is also possible to suck from (see 1) and collect dust.
A floor brush 17 that can rotate in the horizontal direction is installed between the drive wheels 16 and the intake port 12 on the bottom surface 1h1 of the main body 1H of the mobile disinfection device 1. The floor brush 17 rotates horizontally around the support shaft 17j.

By rotating the floor brush 17 in parallel with the floor surface Y, the fine particles adhering to the floor surface Y can be wound up, and more fine particles can be collected from the intake port 12.
Further, if the ultraviolet irradiation unit 11C is provided on the bottom surface 1h1 of the main body 1H, the virus or bacterium adhering to the floor surface Y can be released or inactivated by the ultraviolet ray 101C. Therefore, it is preferable to install the ultraviolet irradiation unit 11C on the bottom surface 1h1 of the main body 1H.

FIG. 3 shows one embodiment of the control block diagram of the mobile sterilizing device 1 according to the first embodiment of the present invention.
The mobile sterilization device 1 includes a human detection sensor 112 and a dust sensor 113, which are detection means.

The person detection sensor 112 detects the presence or absence of a person in the room, and the dust sensor 113 detects the amount of fine particles in the intake air 102.
Further, the mobile sterilization device 1 includes a control unit 110 which is a control means and a communication unit 111 which is a communication means.
The control unit 110 can process the information acquired by the sensors (112, 113) and communicate with the outside from the communication unit 111.

Using the above configuration, the mobile sterilizer 1 drives the drive wheels 16 and autonomously travels based on the information detected by various sensors (112, 113) under the control of the control unit 110. Then, under the control of the control unit 110, the virus and bacteria located on the outside of the main body are inactivated and sterilized by the ultraviolet irradiation of the ultraviolet irradiation unit 11 (described as the sterilization unit in FIG. 3). Further, the mobile sterilizing device 1 operates the centrifugal impeller 14 (described as a dust collecting unit in FIG. 3) under the control of the control unit 110 to scoop out dust, and sucks in air containing dust from the intake port 12. The filter 15 collects fine particles such as viruses and bacteria in the air.

[Control configuration]
Next, the control configuration of the mobile sterilization device 1 of the first embodiment will be described with reference to the control block diagram of FIG.
[Sensor type]
As described above, the mobile sterilization device 1 includes a human detection sensor 112 and a dust sensor 113 as detection units. The human detection sensor 112 detects whether or not the user is present. The dust sensor 113 measures the indoor environment such as the concentration of fine particles in the air.

The human detection sensor 112 may be any type of sensor, but a sensor capable of non-contactly detecting a person by radio waves using a laser, visible light, ultrasonic waves, microwaves, millimeter waves, or the like is desirable.
For example, the human detection sensor 112 that detects the presence or absence of a user includes an infrared sensor that detects infrared rays emitted from a person, a thermopile that recognizes the shape of a person, a camera that acquires an image of a person, a laser, or an ultrasonic wave. A distance camera or the like that detects the distance to the target by detecting the reflected wave of the above can be used.

The dust sensor 113 may be any sensor that can detect the amount of fine particles in the air. In the first embodiment, a sensor that detects passing fine particles with light is assumed, but the type of sensor does not matter as long as it is a sensor that can measure the indoor environment.
As the sensor for detecting the indoor environment, the dust sensor 113 capable of measuring the amount of the above-mentioned fine particles, the odor sensor capable of detecting the indoor air quality, the CO2 sensor and the like are used. In addition, a temperature / humidity sensor, an illuminance sensor, etc. that detect the usage status in the room can be used.

By detecting the state of air pollution in the room with a dust sensor 113, an odor sensor, a CO2 sensor, etc., it is possible to recognize whether or not air cleaning is necessary. The indoor usage status can be grasped by the temperature / humidity sensor and the illuminance sensor.
The result detected by the detection unit (112, 113) is sent to the control unit 110. Then, according to the detection result of the detection unit (112, 113), the control unit 110 drives the drive wheel 16 of the traveling drive unit, the centrifugal impeller 14 of the dust collection unit, the ultraviolet irradiation unit 11 of the sterilization unit, and the like. Controls the operation of the mobile sterilizer 1.

The mobile sterilization device 1 can move freely by controlling the drive wheel 16 (see FIG. 2), which is a traveling drive unit. Here, in the first embodiment, a mode in which a drive wheel 16 is provided as a travel drive unit to travel on wheels is shown, but the configuration of the travel drive unit is not limited to wheel travel, and may be a moving means such as crawler travel or multi-legged travel. It's fine.
Further, by driving the centrifugal impeller 14 which is a dust collecting unit, air can be sucked from the outside of the mobile sterilizing device 1 and fine particles contained in the air can be collected in the filter 15. Further, by driving the ultraviolet irradiation unit 11 which is a sterilization unit, it is possible to irradiate ultraviolet rays and inactivate (antibacterial) the virus or bacterium to be irradiated. Here, in the first embodiment, the ultraviolet irradiation unit 11 is provided as a disinfectant unit, but the device is not limited to ultraviolet rays, and is a device for spraying a disinfectant (alcohol, hypochlorite water, etc.) or a device for cleaning (chemicals). It may be a device for spraying).

Further, the control unit 110 can notify the user of the detection result of the detection unit (112, 113), which is the operating status, via the communication unit 111. The method of notifying the user does not matter. For example, the communication unit 111 may transmit data to the cloud (cloud computing) and the user may confirm the information with a browser, or the communication unit 111 may directly transmit the data to a display device such as a smartphone.

[Operation method]
Next, the operation of the mobile sterilization device 1 of the first embodiment will be described with reference to the operation outline diagram of FIGS. 4A and 4B and the flowchart of FIG.
FIG. 4A shows a schematic view of the mobile sterilizing device 1 according to the first embodiment of the present invention when the user is in the room. FIG. 4B shows a schematic view of the mobile sterilizer 1 according to the first embodiment of the present invention when it is in operation when the user is absent.
FIG. 5 shows one embodiment of the flowchart of the mobile sterilizing device 1 of the first embodiment.
When the control is started, in step S11 of FIG. 5, as shown in FIG. 4A, the mobile sterilizer 1 is in front of the main body 1H by the radio wave 112a radiated from the detection unit such as the human detection sensor 112 provided in the main body 1H. Detect the user.

Similarly, the self-position of the mobile sterilizing device 1 itself is recognized as follows. Then, while detecting the amount of dust by the dust sensor 113, in step S12 of FIG. 5, the drive wheel 16 which is a traveling drive unit is operated to start the cleaning operation.
[Room shape recognition, self-position estimation method]
In order to detect the self-position of the mobile sterilizing device 1 in the room, first, the mobile sterilizing device 1 acquires the shape of the room in which the sterilization is performed.

To acquire the shape of the room, use it as a wireless sensor for the human detection sensor 112, or separately from the human detection sensor 112, detect infrared sensors that detect infrared rays, cameras that detect visible light, and reflected waves from lasers, etc. , Use a distance camera or the like to detect the distance to the target. Further, by equipping the control unit 110 with a map creating means such as SLAM (Simultaneous Localization and Mapping), it is possible to detect the shape of the room and the self-position in the room separately from the detection of a person.

For example, if the person detection sensor 112 is a camera that detects visible light, the image of the camera is processed to detect a person, and the ridgeline (line formed by the wall and the wall, the wall and the floor) is detected from the image of the entire room. It is possible to estimate the shape and size of the room and the self-position in the room (self-position of the mobile sterilizer 1 itself) by detecting the line created by the camera and the line created by the wall and ceiling. Is. Although an air conditioner having a function of detecting the shape and floor plan of a room is known, it is also possible to acquire the shape and floor plan of a room from such an air conditioner or the like by communication.

FIG. 6 shows a perspective view of the mobile sterilizing device 1 equipped with the distance sensor 114 of another example of the first embodiment.
For example, in the case of the mobile disinfection device 1 equipped with a laser irradiation type distance sensor 114 that can overlook the entire room separately from the person detection sensor 112, the distance sensor 114 detects the distance from the wall surface of the room. It is possible to detect the shape of the room and the self-position of the mobile sterilizing device 1 in the room.

The mobile sterilizing device 1 can record a traveling locus by detecting the shape of the room and the self-position. As a result, the mobile sterilizing device 1 can recognize the place where the air cleaning and sterilization have been completed, and can confirm that the air cleaning and sterilization of the entire room have been completed.

In step S13 of FIG. 5, it is determined whether or not the user is in the room.
When the user is in the room (YES in step S13 of FIG. 5), the following operation is performed.

[Operation when a person is in the room]
When it is detected that a user or a person is present in the room, that is, when the user is in the room, the centrifugal impeller 14 of the dust collecting unit is operated in step S14 of FIG. The mobile sterilizing device 1 drives a centrifugal impeller 14 which is a dust collecting unit by a control unit 110, and as shown in FIG. 4A, takes in an intake air 102 which is air containing fine particles into the main body 1H from the outside. Then, the mobile sterilizer 1 collects fine particles such as viruses and bacteria floating in the air on the filter 15 (see FIGS. 1 and 6) and discharges the clean air 103 to the outside. The mobile sterilizing device 1 operates the drive wheel 16 to continue collecting dust while moving in the room, and in step S15 of FIG. 5, it is determined whether the amount of dust is equal to or less than the standard. The standard for the amount of dust is set with reference to the amount of dust after cleaning in advance.

When the amount of fine particles and dust in the intake air 102 becomes smaller than the standard (YES in step S15 in FIG. 5), it is determined that the dust collection of the fine particles in the air is completed, and the control is terminated.
On the other hand, when the amount of fine particles and dust in the intake air 102 is not smaller than the reference (NO in step S15 of FIG. 5), the process proceeds to step S14 of FIG.
When the user is not present (NO in step S13 of FIG. 5), the following operation is performed.

[Operation when no one is present in the room]
When no person is present in the room and the user is absent, the sterilizing unit (11) is operated in step S16 of FIG. That is, as shown in FIG. 4B, the mobile sterilizing device 1 drives the ultraviolet irradiation unit 11 which is the sterilizing unit, and viruses and bacteria adhering to the wall surface and floor surface Y of the room or the surface of furniture and the like are removed. Inactivates, decouples or inactivates fine particles. (Viruses floating in the room can also be inactivated by irradiation with ultraviolet rays)
Then, in step S17 of FIG. 5, it is determined whether or not the entire room has been sterilized. As described above, the traveling locus can be recorded by detecting the shape of the room and the self-position. As a result, the mobile sterilizing device 1 (1A) can recognize the place where the air cleaning and sterilization have been completed, and can confirm that the air cleaning and sterilization of the entire room have been completed.

When it is determined that the entire room to be sterilized has been cleaned by the control of the drive wheels 16 of the traveling drive unit (YES in step S17 in FIG. 5), the control of sterilization is terminated.
On the other hand, if it is not determined that the entire room has been cleaned (NO in step S17 of FIG. 5), the process proceeds to step S17 of FIG. 5 and the sterilization operation is continued.

[effect]
By operating the centrifugal impeller 14 of the dust collecting part when a person is present in the room (inside the room), fine particles and droplets scattered in the air due to the activity of the person are collected and efficiently in the air. It becomes possible to collect fine particles such as viruses and bacteria. In addition, it is possible to prevent the transmission of infectious diseases indoors by immediately collecting fine particles scattered from a person who carries a virus or a bacterium.
In addition, since irradiating a person with ultraviolet rays having a bactericidal effect may induce a human health hazard, the presence or absence of the user's room is detected and the ultraviolet irradiation unit 11 of the sterilization unit is switched and operated. .. This makes it possible to eradicate viruses and bacteria without harming humans. Here, the configuration is such that only the sterilizing unit (11) is operated and the dust collecting unit (14) is not operated when the user is absent, but the dust collecting unit (14) may be operated regardless of the presence or absence of the user. no problem. Therefore, the mobile sterilizing device 1 may operate the dust collecting unit (14) at the same time as the sterilizing unit (11). It is also possible to collect dust.

Further, since the mobile sterilizing device 1 as in the first embodiment irradiates ultraviolet rays while moving in the room to release the particles or inactivate the fine particles, the ultraviolet irradiation target is wide and the area where a person moves. Can almost cover. Therefore, there are few areas that cannot be sterilized because they have entered the blind spot of the mobile sterilization device 1.
In addition, with fixed sterilization means and dust collecting means, it is necessary to always set the installation position on a part of the floor, which may take up a lot of space and get in the way. However, since the mobile sterilizer 1 as in the first embodiment can be operated in a required room as needed, or automatically put on standby in a place where it does not get in the way when not in use. It is possible to sterilize the room so that it does not get in the way of people.

In addition, since it is mobile, it is possible to clean and sterilize multiple rooms with one unit. For example, it is possible to automatically clean and sterilize multiple rooms by automatically operating in the middle of the night, such as a space where people are active during the day but not at night. .. In addition, since it is possible to move to the most effective place to perform dust collection and sterilization operations, efficiency, dust collection and sterilization performance are higher than those of the fixed type, and the time required for dust collection and sterilization is high. Can be shortened. In addition, the effect of indoor sterilization can be exhibited with less labor of moving and operating the dust collecting means and the sterilizing means.

As described above, a sensor (112) that detects human behavior, a dust collector (14) that collects fine particles floating in the air, and a sterilization unit that decomposes or inactivates viruses / bacteria (14). 11), a moving means (driving wheel 16) capable of autonomous traveling, and a control means (control unit 110) are provided, and the dust collecting means / sterilizing means is switched according to the detection content of the sensor (112). This makes it possible to remove or inactivate fine particles, viruses and bacteria in the room regardless of the presence or absence of a person, and prevent the user living in the room from suffering from an infectious disease.

According to the first embodiment, it is possible to collect and sterilize both the fine particles floating in the air and the fine particles adhering to the floor surface Y or the wall surface according to the human behavior, which is harmful to humans. It is possible to efficiently sterilize the room without any problems. Therefore, it is possible to prevent or suppress the transmission of infectious diseases caused by viruses and bacteria. As a result, it is possible to suppress the onset of allergic symptoms and the transmission of infectious diseases by removing fine particles such as viruses and bacteria in the room, and by dissociating bacteria (antibacterial) or inactivating them.

<< Embodiment 2 >>
FIG. 7 shows a schematic diagram of a fixed sterilization device 2 constituting the indoor sterilization system 3 of the second embodiment of the present invention.

FIG. 8A shows a schematic diagram of the operation of the indoor sterilization system 3 of the second embodiment of the present invention when the user is in the room, and FIG. 8B shows FIG. 8B when the user of the indoor sterilization system 3 of the second embodiment of the present invention is absent. The schematic diagram of the operation of is shown.
The indoor sterilization system 3 of the second embodiment of the present invention comprises the mobile sterilization device 1 (see FIG. 1) described in the first embodiment and the fixed sterilization device 2 (see FIG. 7) of the second embodiment. It is composed by combining them.

Since the mobile sterilization device 1 is the same as the description of the first embodiment, the configurations of the fixed sterilization device 2 and the indoor sterilization system 3 will be described below, focusing on the parts different from the first embodiment.
[overall structure]
The overall configuration of the indoor sterilization system 3 of the second embodiment will be described.

As shown in FIG. 8A, the indoor sterilization system 3 is composed of a mobile sterilization device 1 (see FIG. 1) and a fixed sterilization device 2 (see FIG. 7).
As shown in FIG. 7, the fixed sterilization device 2 includes an ultraviolet irradiation unit 21 as a sterilization unit, a control unit 210, and a communication unit 211. The fixed sterilization device 2 is configured to irradiate the outside (indoor) with ultraviolet rays 201 from the ultraviolet irradiation unit 21.
The fixed sterilization device 2 is installed at a high place that cannot be reached by the mobile sterilization device 1, and the sterilization target range of the fixed sterilization device 2 and the sterilization target range of the mobile sterilization device 1 overlap. It is desirable not to. By not overlapping the sterilization target ranges of the mobile sterilization device 1 and the fixed sterilization device 2, more efficient or effective sterilization becomes possible.

FIG. 9 shows one embodiment of the control block diagram of the indoor sterilization system 3 of the second embodiment of the present invention.
The fixed sterilization device 2 can communicate with the communication unit 111 (see FIG. 1) of the mobile sterilization device 1 via the communication unit 211. The fixed sterilization device 2 drives the ultraviolet irradiation unit 21 which is the sterilization unit by the control unit 210 based on the information received from the mobile sterilization device 1.
That is, the fixed sterilization device 2 responds to the information transmitted via the communication unit 111 according to the information detected by the human detection sensor 112 (see FIG. 3) of the detection unit of the mobile sterilization device 1. It is operational.

As shown in FIGS. 8A and 8B, the mobile sterilizer 1 is installed in a state where it can move near the floor surface Y in the room. On the other hand, the fixed sterilizing device 2 is fixedly set on the wall surface K near the ceiling T in the room. The mobile sterilizer 1 moves indoors to acquire information such as indoor users and the indoor environment, and transmits the information to the fixed sterilizer 2 via the communication unit 111 (see FIG. 9). As a result, even if the fixed sterilization device 2 shown in FIG. 7 does not have a detection unit, the human detection sensor 112 of the detection unit of the mobile sterilization device 1 can recognize the human behavior and operate accordingly. Become.

[Operation method]
FIG. 10 shows an embodiment of a flowchart for controlling the indoor sterilization system 3 according to the second embodiment of the present invention.
The operation of the indoor sterilization system 3 of the second embodiment will be described.
When the indoor sterilization system 3 starts control, in steps S21 and S22 of FIG. 10, first, as shown in FIGS. 8A and 8B, the mobile sterilization device 1 drives the drive wheel 16 to move in the room. At the same time, the presence of a person in the room is detected by the radio wave 112a emitted by the person detection sensor 112 of the detection unit, and the self-position is recognized. Further, the mobile sterilizer 1 detects the amount of dust indicating the indoor environment with the dust sensor 113 (see FIG. 9).

Subsequently, in step S23, the mobile sterilizer 1 determines whether or not the user is in the room.
When the human detection sensor 112 of the mobile sterilization device 1 detects that the user is in the room (YES in step S23), in step S24, as shown in FIG. 8A, the indoor sterilization system 3 Operates the dust collecting unit (14) of the mobile sterilizing device 1. That is, the mobile sterilizing device 1 drives the centrifugal impeller 14 which is a dust collecting unit by the control unit 110. As a result, the intake air 102 containing the fine particles is taken into the main body 1H from the outside, the fine particles such as viruses and bacteria floating in the air are collected by the filter 15 (see FIG. 1), and the clean air 103 is discharged to the outside. In this way, the drive wheels 16 are operated to move in the room and continue to collect dust.

Then, in step S25, it is determined whether or not the amount of fine particles and dust in the intake air 102 is smaller than the reference (YES in step S25).
When the amount of fine particles and dust in the intake 102 becomes smaller than the standard (YES in step S25), it is determined that the dust collection of the fine particles in the air is completed, and the control is terminated.
When the amount of fine particles and dust in the intake air 102 is not less than the standard (NO in step S25), the process proceeds to step S24 to continue collecting dust while moving in the room.

On the other hand, when the human detection sensor 112 of the mobile sterilizer 1 detects that the user is absent (NO in step S23), that is, when the user is absent, in step S26, as shown in FIG. 8B, the room. The sterilization system 3 operates the ultraviolet irradiation unit 11 of the sterilization unit of the mobile sterilization device 1 and the ultraviolet irradiation unit 21 of the sterilization unit of the fixed sterilization device 2.
Then, in step S27, it is determined whether the entire room has been sterilized or whether a certain period of time has passed.

It was confirmed that the mobile sterilizer 1 ran the entire room and sterilized the entire room, and either a certain period of time considered to be effective for sterilization by the fixed sterilizer 2 has elapsed. Alternatively, when both are achieved (YES in step S27), it is determined that the entire room has been sterilized and the control is terminated. It is possible to sterilize the entire room because the mobile sterilizing device 1 has acquired the shape of the room in advance.
On the other hand, the mobile sterilizer 1 has not traveled the entire room to sterilize the entire room, and a certain period of time considered to be effective for sterilization by the fixed sterilizer 2 has not passed. If (NO in step S27), the process proceeds to step S26 and sterilization is continued.

[effect]
Ultraviolet rays 201 irradiated from the fixed sterilizing device 2 dissociate or inactivate viruses and bacteria in the upper region of the indoor space. The ultraviolet rays 101 irradiated from the mobile sterilizing device 1 dissociate or inactivate viruses and bacteria mainly in the lower part of the indoor space and the parts that come into contact with humans such as furniture. Therefore, by using the space sterilization system 3 of the second embodiment, it is possible to sterilize the entire upper region and the lower region of the room.

Irradiating humans with ultraviolet rays, which have a bactericidal effect, may induce human health hazards. Therefore, the presence or absence of the user's room is detected by the human detection sensor 112 of the mobile sterilization device 1, and the sterilization section (11) of the mobile sterilization device 1 and the sterilization section of the fixed sterilization device 2 ( By switching between 21) and operation, it is possible to eradicate viruses and sterilization without harming humans.

Here, when the user is absent, only the sterilizing unit (11) of the mobile sterilizing device 1 is operated and the dust collecting unit (14) is not operated. However, since the dust collecting unit (14) of the mobile sterilizing device 1 may be operated regardless of the presence or absence of a user, the dust collecting unit (14) may be operated at the same time as the sterilizing unit (11). .. In this case, it is also possible to collect fine particles in the air at the same time as the decoupling bacteria or inactivation of viruses and bacteria adhering to the object.

Further, when the installation position of the fixed sterilization device 2 is very high compared to the height of a person, the sterilization range is sufficiently far from the area where the person is active, and the irradiation is performed from the fixed sterilization device 2. When the ultraviolet rays 201 are not harmful to humans, the fixed sterilizer 2 may be operated at the same time as the dust collecting unit of the mobile sterilizer 1 while the user is in the room. In that case, at the same time as collecting fine particles in the air, it is possible to deactivate or inactivate the virus and sterilizing bacteria adhering to an object in a part of the room.

The indoor sterilization system 3 of the second embodiment is composed of one mobile sterilization means (1) and one fixed sterilization means (2), but the mobile sterilization means (1). ) And the fixed sterilization means (2) are provided, and the number of each may be any number. Therefore, it is necessary to appropriately set the number of the mobile sterilizing means (1) and the fixed sterilizing means (2) depending on the size of the target room and the time required for sterilization.

As described above, the mobile sterilizing device 1 decomposes or decomposes a sensor (112) that detects human behavior, a dust collecting means (14) that collects fine particles suspended in the air, and viruses / bacteria. It is provided with a sterilizing means (11) for inactivating, a moving means (16) capable of autonomous traveling, and a control means (110). Further, the fixed sterilization device 2 includes a sterilization means (21) and a control means (210).

Then, the indoor sterilization system 3 that switches the dust collection means / sterilization means according to the detection content of the sensor (112) of the mobile sterilization device 1 removes fine particles, viruses and sterilization in the room regardless of the presence or absence of a person. Alternatively, it can be inactivated to prevent or prevent indoor users from contracting an infectious disease.
Although the case of a single fixed sterilizing device 2 is exemplified, a plurality of fixed sterilizing devices 2 may be provided.
Further, the fixed sterilizer 2 is in a high position overlooking the entire room. The fixed sterilization device 2 is provided with a camera overlooking the room, and the control unit 210 recognizes the shape and floor plan of the room, and notifies the mobile sterilization device 1 of the result by communication. Then, the shape of the room or the like may be reflected in the control of the mobile sterilizing device 2. This point is the same in the next embodiment 3.

<< Embodiment 3 >>
The structure of the third embodiment of the present invention will be described with reference to FIG.
FIG. 11 shows a schematic diagram of the indoor sterilization system 3A according to the third embodiment of the present invention during operation.
The indoor sterilization system 3A of the third embodiment of the present invention includes two mobile sterilization devices 1 (1A, 1B) of the first embodiment and one fixed sterilization device 2 of the second embodiment. It is a configuration.
The configurations of the mobile sterilizers 1A and 1B are the same as the configurations of the mobile sterilizer 1 of the first embodiment, and the configurations of the fixed sterilizer 2 are the same as the configurations of the fixed sterilizer 2 of the second embodiment. .. Therefore, the indoor sterilization device is composed of two mobile sterilization devices 1A and 1B and one fixed sterilization device 2 centering on a part (configuration) different from that of the first and second embodiments. The configuration of the system 3A will be described below.

The indoor sterilization system 3A of the third embodiment includes two mobile sterilization devices (A) 1A and a mobile sterilization device (B) 1B, and a fixed sterilization device 2. It is composed of.
The mobile sterilizer (A) 1A and the mobile sterilizer (B) 1B have a detection unit (112A), (112B), a traveling drive unit (16A), (16B), a dust collection unit (14A), respectively. (14B), a sterilization unit (11A), (11B), a control unit (110A), (110B), a communication unit (111A), and (111B) are provided. The two mobile sterilizers (A) 1A and mobile sterilizer (B) 1B can detect the presence or absence of a person in the room by the human detection sensor 112A and the human detection sensor 112B, which are detection units. be.

The fixed sterilization device 2 includes an ultraviolet irradiation unit 21, a control unit 210, and a communication unit 211 of the sterilization unit.
Then, the mobile sterilizing device (A) 1A, the mobile sterilizing device (B) 1B, and the fixed sterilizing device 2 can communicate with each other via the communication unit. That is, the indoor sterilization system 3A can operate according to the information detected by the detection units (112A) and (112B) of the mobile sterilization device (A) 1A and the mobile sterilization device (B) 1B. ..

The operation of the main room sterilization system 3A will be described.
When the indoor sterilization system 3A starts control, first, the mobile sterilization device (A) 1A and the mobile sterilization device (B) 1B move in the room, and the radio waves emitted by the individual detection sensors 112A and 112B respectively. The presence of a person in the room is detected by 112Aa and 112Ba. Here, either mobile sterilizing device (1A, 1B) may detect the presence or absence of a person in the room. In FIG. 11, since the detection direction of the mobile sterilizer (A) 1A is close to the human P, the human P is detected by the human detection sensor 112A of the mobile sterilizer (A) 1A.

Similar to the second embodiment, when either mobile sterilizing device (1A, 1B) detects that the user is in the room, that is, when the user is in the room, the indoor sterilizing system 3A is mobile. The dust collectors (14A) and (14B) of the sterilizer (A) 1A and the mobile sterilizer (B) 1B are operated.

As a result, each mobile sterilizer (1A, 1B) takes in the intake air 102A and 102B from the outside into the main body 1Ah and 1Bh, respectively, while moving. Then, the mobile sterilizer (1A, 1B) collects fine particles such as viruses and bacteria contained in the intake air 102A and 102B floating in the air into the filters 15A and 15B inside the main body 1Ah and 1Bh. Clean air 103A and 103B are made and discharged to the outside. Then, when the amount of fine particles contained in both intakes 102A and 102B is sufficiently reduced by the detection of the dust sensors 113A and 1113B, the mobile sterilizer (1A, 1B) collects the fine particles contained in the air. It is determined that the dust is completed, and the control is terminated.

Similar to the second embodiment, when both mobile sterilizers (1A and 1B) detect that the user is absent, that is, when the user is absent, the indoor sterilizer system 3A uses the mobile sterilizer (A). ) 1A and the mobile sterilizer (B) The sterilizers (11A) and (11B) of 1B and the ultraviolet irradiation unit 21 of the sterilizer of the fixed sterilizer 2 are operated.
As time passed, it was confirmed that the indoor sterilization system 3A sterilized the entire room by running the entire room with two mobile sterilizers (A) 1A and mobile sterilizer (B) 1B. Or, if a certain period of time that is considered to be effective for sterilization by the fixed sterilization device 2 elapses, or if either or both are achieved, it is determined that the entire room has been sterilized. End control.

Irradiating humans with ultraviolet rays, which have a bactericidal effect, may induce human health hazards. Therefore, the indoor sterilization system 3A detects the presence or absence of the user's room and switches the sterilization unit (11A), (11B), (21) to operate, thereby causing a virus or the like without causing harm to humans. Sterilization can be eradicated. Further, similarly to the first and second embodiments, there is no problem even if the dust collecting units (14A) and (14B) are operated regardless of the presence or absence of a user. Therefore, the mobile sterilizer (1A, 1B) may operate the dust collectors (14A) and (14B) at the same time as the sterilizers (11A) and (11B). In that case, the indoor sterilization system 3A can be used to collect fine particles in the air at the same time as deactivating or inactivating viruses and bacteria adhering to the object.

Further, as in the second embodiment, depending on the installation position of the fixed sterilizing device 2, the fixed sterilizing device 2 may be operated at the same time as the dust collecting unit of the mobile sterilizing device 1 when the user is in the room. In that case, at the same time as collecting fine particles in the air, it is possible to release or inactivate the virus and sterilizing bacteria adhering to an object in a part of the room. The user detection sensors 112A and 112B of the mobile sterilizer (A) 1A and the mobile sterilizer (B) 1B can tell where the user is in the room. On the other hand, the ultraviolet irradiation unit 21 of the fixed sterilizing device 2 can know which place in the room to irradiate the ultraviolet 201 by acquiring the shape of the room and the position of the fixed sterilizing device 2.

As described above, in the third embodiment, two mobile sterilizers (1A and 1B) detect the human P, collect fine particles in the air, and separate indoor viruses and bacteria by ultraviolet irradiation. Release bacteria or inactivate. Further, the fixed sterilization device 2 irradiates ultraviolet rays from the ultraviolet irradiation unit 21 to a high place where the mobile sterilization devices (1A, 1B) cannot reach, and the virus or bacterium is decoupled or inactivated.
Therefore, the indoor sterilization system 3A takes less time to detect the human P, clean the air, and release the target sterilization or inactivation than in the case of one unit. Further, when cleaning is performed in the same time, the indoor sterilization system 3A can deal with cleaning of a large room and decomposing bacteria or inactivating.

The indoor sterilization system 3A of the third embodiment is configured to include two mobile sterilization means (1A, 1B) and one fixed sterilization means (2). The number of units may be any number as long as it is composed of means and fixed sterilization means.
By providing one or a plurality of mobile sterilizing means and fixed sterilizing means, the room can be completely released or inactivated regardless of the size of the room.
It is necessary to appropriately set or select the number of mobile sterilization means and fixed sterilization means depending on the size of the target room and the time required for sterilization. In addition, when sterilization at a high place is not necessary or installation is difficult, the indoor sterilization system 3A is configured with only a plurality of mobile sterilization means without using the fixed sterilization means (2). Is also good.

As described above, the presence or absence of a person P is determined by the indoor sterilization system 3A equipped with at least one mobile sterilization device (1A, 1B) and switching between the dust collection means and the sterilization means according to the detection content of the sensor. Not limited to it, it is possible to remove or inactivate fine particles, viruses and sterilization in the room to prevent the user living in the room from suffering from an infectious disease.

<< Embodiment 4 >>
FIG. 12 is a schematic diagram of the mobile sterilizing device 1C according to the fourth embodiment of the present invention.
The mobile sterilizer 1C according to the fourth embodiment of the present invention will be described with reference to FIG.
The configuration of the mobile sterilizing device 1C is the same as the configuration of the mobile sterilizing devices 1 and (1A, 1B) of the first to third embodiments. Therefore, the configuration of the mobile sterilization device 1C of the fourth embodiment will be described below, focusing on the parts different from the first to third embodiments.

In the mobile sterilization device 1C of the fourth embodiment, the centrifugal impeller 14 and the filter 15, the control unit 110, the communication unit 111, and the drive wheel 16 as the traveling drive unit are provided in the main body 1Ch. Is the same as the structure of the first embodiment.
In the mobile sterilization device 1C, the ultraviolet irradiation unit 11n is provided inside the main body 1Ch. The mobile sterilization device 1C is characterized in that the ultraviolet rays 101 irradiated from the ultraviolet irradiation unit 11n are irradiated on the fine particles collected by the filter 15.

Therefore, since the ultraviolet rays 101 do not irradiate the outside of the main body 1Ch and dissociate or inactivate fine particles such as viruses and bacteria in the main body 1Ch, the sterilization means is always used regardless of the presence or absence of the surrounding person P. It is possible to operate the ultraviolet irradiation unit 11n.
The mobile sterilizer 1C cannot sterilize fine particles that cannot be removed by adhering to the wall surface, but even if they once adhere to the wall surface or floor surface Y, the fine particles that have soared into the air due to contact or the like are taken as an intake port as an intake port 102. It is sucked from 12. Then, inside the mobile sterilizing device 1C, the sucked intake air 102 collects fine particles by the filter 15. Then, the clean air 103 containing no fine particles is discharged to the outside from the exhaust port 13 of the mobile sterilizing device 1C.

The collected fine particles such as viruses and bacteria are decomposed or inactivated by being irradiated with ultraviolet rays 101 from the ultraviolet irradiation unit 11n inside the mobile sterilizing device 1C. Therefore, infectious diseases can be prevented without flying up when the filter 15 in the mobile sterilizing device 1C is replaced.

<< Embodiment 5 >>
FIG. 13 shows a schematic diagram of the mobile sterilizing device 1D according to the fifth embodiment of the present invention.
The mobile sterilizer 1D of the fifth embodiment is configured to sterilize both the outside and the inside.
In the mobile sterilization device 1D, an ultraviolet irradiation unit 11A that irradiates the outside of the main body 1Dh with ultraviolet rays 101A is arranged outside the main body 1Dh. Further, in the mobile sterilization device 1D, the ultraviolet irradiation unit 11B that irradiates the ultraviolet 101B inside the main body 1Dh is arranged inside the main body 1Dh.

The mobile sterilizing device 1D inactivates bacteria and viruses adhering to the outer wall surface and floor surface Y of the main body 1Dh by ultraviolet irradiation from the ultraviolet irradiation unit 11A. The mobile sterilizer 1D can simultaneously collect dust from the outside and attach bacteria and viruses to the filter 15 by irradiating ultraviolet rays from the ultraviolet irradiation unit 11B inside the main body 1Dh to release bacteria or inactivate them. Is.
Therefore, when the mobile sterilization device 1D detects the presence of a person by the person detection sensor 112, the mobile sterilization device 1D irradiates only the internal ultraviolet irradiation unit 11B. On the other hand, when a person is absent, the mobile sterilizer 1D exists inside and outside the main body 1Dh without causing health damage to the person by driving both the external ultraviolet irradiation unit 11A and the internal ultraviolet irradiation unit 11B. It is possible to dissociate or inactivate bacteria and viruses.

<< Other Embodiments >>
1. 1. In the above embodiment, the case where the mobile sterilizing device 1 has the human detection sensor 112 has been described, but the human detection sensor 112 is provided in the room and moves according to the detection content of the human detection sensor 112 provided in the room. The type sterilization device 1 and the fixed type sterilization device 2 may be configured to perform sterilization.
FIG. 14 shows a schematic diagram of the operation of the indoor sterilization system 3T according to another embodiment of the present invention when the user is in the room.

In the above embodiment, the configuration in which the human detection sensors 112, 112A, 112B are provided in the mobile sterilization devices 1, (1A, 1B) is exemplified, but instead, as shown in FIG. 14, the indoor sterilization system A human detection sensor 212 having a communication means as 3T is provided in the room.
The human detection sensor 212 can communicate with the mobile sterilization device 1 (1A, 1B) constituting the indoor sterilization system 3T and the fixed sterilization device 2 via a communication means.

Then, based on the detection information of the human detection sensor 212, the ultraviolet irradiation 101 is irradiated from the ultraviolet irradiation unit 11 of the mobile sterilization device 1, and the ultraviolet light 201 is irradiated to the outside from the ultraviolet irradiation unit 21 of the fixed sterilization device 2. ..
That is, by the detection of the person detection sensor 212, the ultraviolet ray 101 is irradiated from the ultraviolet irradiation unit 11 of the mobile sterilizing device 1 to the place where there is no person, and the ultraviolet ray of the fixed sterilizing device 2 is applied to the place where there is no person. The ultraviolet 201 may be irradiated from the irradiation unit 21. With this configuration, ultraviolet rays 101 and 201 can be irradiated to a place where no one is present.

2. 2. The configuration described in the above embodiment is an example of the present invention, and various other embodiments are possible within the scope of the claims.

1,1C, 1D mobile sterilizer 1A mobile sterilizer (A) (mobile sterilizer)
1B Mobile sterilizer (B) (Mobile sterilizer)
2 Fixed sterilization device 3, 3A, 3T Indoor sterilization system 11, 11n Ultraviolet irradiation part (sterilization means)
14 Centrifugal impeller (dust collecting means)
16 Drive wheels (means of transportation)
21 Ultraviolet irradiation part (fixed sterilization means)
110 Control unit (control means)
111 Communication unit (communication means)
112, 112A, 112B Human detection sensor (sensor)
212 person detection sensor (indoor sensor)
210 Control unit (fixed control means)
211 Communication unit (fixed communication means)

Claims (9)

Sensors that detect people and
A dust collecting means that collects fine particles floating in the air,
A sterilizing means that decomposes or inactivates at least one of viruses or bacteria by irradiation with ultraviolet rays or spraying chemicals.
A means of transportation that enables autonomous driving,
The detection content of the sensor is input, and the dust collecting means, the sterilizing means, and the control means for controlling the moving means are provided.
The control means is
A mobile sterilizing device characterized in that the dust collecting means and the sterilizing means are switched and operated according to the detection content of the sensor. A plurality of mobile sterilizing devices according to claim 1 are provided.
Each of the control means
An indoor sterilization system characterized in that each of the dust collecting means and each of the sterilizing means are switched and operated according to the detection content of each of the sensors. The mobile sterilizing device according to at least one claim 1,
A fixed sterilizing device including at least one fixed sterilizing means for decomposing or inactivating at least one of a virus or a bacterium and a fixed control means for controlling the fixed sterilizing means.
The control means is
An indoor sterilization system characterized in that the dust collecting means and the sterilizing means are switched and operated according to the detection content of the sensor. The mobile sterilizer has a communication means and has a communication means.
The fixed sterilization device has a fixed communication means that communicates with the communication means.
The indoor sterilization system according to claim 3, wherein the fixed control means activates or deactivates the fixed sterilization means according to the detection content of the sensor. The indoor sterilization system according to claim 3, wherein the mobile sterilization device and the fixed sterilization device are each one or more. The sterilizing means decomposes or decomposes at least one of the viruses or bacteria existing outside the main body, or at least one of the viruses or bacteria collected inside the main body of the mobile sterilizing device. The mobile sterilizing device according to claim 1, wherein the device is an inactivating device. The sterilizing means decomposes or decomposes at least one of viruses or bacteria existing outside the main body, or at least one of the viruses or bacteria collected inside the main body of the mobile sterilizing device. The indoor sterilization system according to claim 2 or 3, wherein the device is an inactivating device. An indoor sensor installed in the room that has a communication unit and detects people,
A dust collecting means for collecting fine particles floating in the air, a sterilizing means for decomposing or inactivating at least one of viruses or bacteria by irradiation with ultraviolet rays or spraying a chemical, and a moving means for enabling autonomous traveling. A mobile sterilizing device provided with a communication means, a dust collecting means, a sterilizing means, a moving means, and a control means for controlling the communication means into which the detection contents of the indoor sensor are input.
Fixed sterilization means comprising at least one fixed sterilization means for degrading or inactivating at least one of a virus or a bacterium, a fixed communication means, and a fixed control means for controlling the fixed sterilization means and the fixed communication means. Equipped with a fungus device,
The control means is
The dust collecting means and the sterilizing means are switched and operated according to the detection content of the indoor sensor.
The fixed control means
An indoor sterilization system characterized in that the fixed sterilization means is activated or deactivated according to the detection content of the indoor sensor. The fixed sterilization device is
The claim is characterized in that it is installed in a high place that cannot be reached by the mobile sterilization device, and the sterilization target range of the fixed sterilization device and the sterilization target range of the mobile sterilization device do not overlap. Item 8. The indoor sterilization system according to Item 8.

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