Dust removal system

Abstract

To provide a dust removal system capable of efficiently performing dust removal of a person passing through a door.SOLUTION: A dust removal system 1 performing dust removal of a person P passing through a door 10, comprises: a first blowing portion 40 that blow off air near an opening / closing operation terminal 30 that is provided on one side of the door 10 and can operate the opening / closing of the door 10; a second blowing portion 50 that can blow off air at faster wind speed than the first blowing portion 40 near the door 10; and a control portion (opening / closing operation terminal 30) that controls the first blowing portion 40 and the second blowing portion 50 on the basis of the operation of the opening / closing operation terminal 30.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technology of a dust removal system for removing dust adhering to a person.

Background Art

[0002] Conventionally, the technology of a dust removal system for removing dust adhering to a person has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 describes a dust removal system (pollen separation device) installed near a door (entrance / exit) of a building. In the dust removal system described in Patent Document 1, a person entering or leaving the building is detected, and by blowing wind towards the detected person, dust (such as pollen and dust) adhering to the person can be removed.

[0004] However, when performing dust removal near a door as described in Patent Document 1, since a person is moving through the door, it may be difficult to perform sufficient dust removal in some cases. In such cases, in order to perform sufficient dust removal, it is necessary to secure a certain amount of time or more for blowing wind by making the person stop temporarily near the door. However, when performing such dust removal, problems such as congestion may occur when there are many people passing through the door.

Prior Art Documents

Patent Documents

[0005] [[ID=3)]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above circumstances, and the problem to be solved is to provide a dust removal system capable of efficiently removing dust from people passing through a door.

Means for Solving the Problems

[0007] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0008] In other words, claim 1 provides a dust removal system for removing dust from a person passing through a door, comprising: a first air blower that blows air near an opening / closing operation terminal provided on one side of the door, which is capable of operating the opening and closing of the door; a second air blower that blows air near the door at a stronger wind speed than the first air blower; and a control unit that controls the operation of the first air blower and the second air blower based on the operation of the opening / closing operation terminal.

[0009] Claim 2 further comprises a static elimination unit that performs static elimination on the target person in the vicinity of the opening / closing operation terminal.

[0010] In claim 3, the control unit operates the first air blower and the second air blower when the person passes through the door from one side to the other, and does not operate the first air blower and the second air blower when the person passes through the door from the other side to the one side. [Effects of the Invention]

[0014] One of the effects of this invention is that it can efficiently remove dust from people passing through doors. [Brief explanation of the drawing]

[0015] [Figure 1] (a) A schematic plan view showing a dust removal system according to the first embodiment of the present invention. (b) A schematic plan view showing a person operating an opening / closing terminal. [Figure 2] (a) A schematic plan view showing the subject opening a door. (b) A schematic plan view showing the subject passing through a door. [Figure 3] (a) A schematic plan view showing a dust removal system according to a second embodiment of the present invention. (b) A schematic plan view showing a person operating an opening / closing terminal. [Figure 4] (a) A schematic plan view showing the subject opening a door. (b) A schematic plan view showing the subject passing through a door. [Modes for carrying out the invention]

[0016] In the following explanation, the forward / backward and left / right directions are defined according to the arrows indicated in the diagram.

[0017] The following describes a dust removal system 1 according to the first embodiment of the present invention.

[0018] The dust removal system 1 shown in Figure 1 removes dust attached to the target person (hereinafter referred to as "target person P" for convenience). Here, dust refers to airborne particles such as pollen. In addition to pollen, dust includes sand, fine dust, PM2.5 (particulate matter with a particle size of 2.5 μm or less).

[0019] The dust removal system 1 according to this embodiment also has the function of a locking / unlocking system that manages the locking and unlocking of the door 10, which will be described later. The dust removal system 1 mainly comprises a door 10, a housing 20, an opening / closing operation terminal 30, a first air blower 40, and a second air blower 50.

[0020] Door 10 is provided at an entrance for moving between two partitioned spaces. In this embodiment, as an example, a door 10 is provided at an entrance for moving between an office floor A and a corridor B, which are partitioned by a wall W within a predetermined building (such as an office building). Door 10 is provided with an electronic lock mechanism that can be locked and unlocked by operation using an opening / closing operation terminal 30, which will be described later. In this embodiment, an example is shown in which a hinged door is used for door 10.

[0021] The housing 20 defines the passage route of the person P passing through the door 10. The housing 20 is provided in a pair on the left and right with the door 10 interposed therebetween. The housing 20 is formed in a rectangular shape that is long in the front-rear direction in plan view. By arranging the housing 20 in this way, a passage route for the person P to move back and forth is defined between the pair of housings 20. The housing 20 is formed in a hollow shape and can accommodate appropriate members.

[0022] The opening / closing operation terminal 30 can perform operations related to the opening and closing of the door 10 (such as unlocking and locking of the electronic lock). In the present embodiment, as the opening / closing operation terminal 30, a terminal for a card key system that can unlock the door 10 based on information stored in a card key held by the person P is exemplified. The opening / closing operation terminal 30 is provided on the side surface of the housing 20 on one side (passage B side) of the door | 10. The opening / closing operation terminal 30 can authenticate the card key of the person P passing through the door 10 from the passage B side to the work floor A side and unlock the door 10. Further, when the door 10 that has been unlocked and opened closes again, the opening / closing operation terminal 30 can automatically lock the door 10.

[0023] <000,0089>Also, the opening / closing operation terminal 30 according to the present embodiment can also control the operations of the first blower unit 40 and the second blower unit 50 described later. The opening / closing operation terminal 30 is composed of an input device that reads information of the card key, an arithmetic processing device such as a CPU, and a storage device such as a RAM, a ROM, and an HDD.

[0024] The first blower unit 40 blows air toward the person P by blowing out air in the vicinity of the opening / closing operation terminal 30. The first blower unit 40 can send out air by the operation of an appropriate fan. The first blower unit 40 can arbitrarily change the wind speed of the blown-out air by controlling the operation of the fan.

[0025] Also, the first air blowing unit 40 is provided with an ion generating unit (not shown) that generates ions (positive ions and negative ions). As the ion generating unit, for example, a configuration that generates positive ions and negative ions by corona discharge can be adopted. The ions generated by the ion generating unit are not particularly limited, and appropriate positive ions and negative ions can be adopted. Also, as the ions, cluster ions in which water molecules in the air are aggregated around positive ions and negative ions can also be adopted. The ions generated by the ion generating unit can be included in the air discharged from the first air blowing unit 40.

[0026] The first air blowing unit 40 is provided in the left and right casings 20 respectively. The first air blowing unit 40 is arranged near the opening / closing operation terminal 30. Specifically, the first air blowing unit 40 is arranged on the passage B side from the door 10 and at the same position as the opening / closing operation terminal 30 in the front-rear direction, or at a position slightly shifted forward or backward from the opening / closing operation terminal 30. Also, the first air blowing unit 40 is arranged on the rear side (passage B side) of the second air blowing unit 50 described later. The first air blowing unit 40 is arranged so that it can blow air toward the left and right inner sides (the passage of the subject P) of the pair of casings 20. In this embodiment, an example in which five first air blowing units 40 are provided is illustrated, but the number of the first air blowing units 40 can be arbitrarily changed.

[0027] The second air blowing unit 50 blows air toward the subject P by blowing air in the vicinity of the door 10. The second air blowing unit 50 can send out air by the operation of an appropriate fan. The second air blowing unit 50 can arbitrarily change the blowing air speed by controlling the operation of the fan.

[0028] The second air blowers 50 are provided in each of the left and right housings 20. The second air blowers 50 are positioned near the door 10. Specifically, the second air blowers 50 are positioned in front of and behind the door 10 (slightly offset from the door 10 in the front-to-back direction). Furthermore, the second air blowers 50 are positioned in front of the first air blower 40 (towards the office A side). The second air blowers 50 are positioned so as to blow air towards the left and right inner sides of the pair of housings 20 (the passageway of the target person P). In this embodiment, an example with three second air blowers 50 is shown, but the number of second air blowers 50 can be changed arbitrarily.

[0029] As described above, the dust removal system 1 can remove dust from individuals P passing through the door 10 from the corridor B side to the office floor A side. The dust removal method using the dust removal system 1 will be described below with reference to Figures 1 and 2.

[0030] When person P passes through door 10 from corridor B to office floor A, as shown in Figure 1(b), person P first operates the opening / closing terminal 30 to perform card authentication. Specifically, person P holds their card key over the opening / closing terminal 30, causing the terminal 30 to read the card key information. When the opening / closing terminal 30 detects the card key, it activates the first air blower 40 and the second air blower 50. As a result, air blows out from the first air blower 40 and the second air blower 50 toward the left and right inwards of the housing 20.

[0031] In this process, the opening / closing operation terminal 30 controls the air velocity of the air blown out by the second air blower 50 to be higher than the air velocity of the air blown out by the first air blower 40. The opening / closing operation terminal 30 also activates the ion generating unit of the first air blower 40. As a result, air containing ions is blown out from the first air blower 40.

[0032] When the first air blower 40 is activated, it can blow ion-containing air onto the person P operating the opening / closing terminal 30. This removes static electricity from the person P's clothing (electrically neutralizing charged parts), making it easier for the dust removal system 1 to remove dust. In addition, the air from the first air blower 40 can remove dust adhering to the person P.

[0033] The opening / closing terminal 30 authenticates the subject P based on the card key information, and unlocks the door 10 if there are no problems. After the door 10 is unlocked, as shown in Figure 2(a), the subject P approaches the door 10, grasps the doorknob, and pulls it towards them to open the door 10. At this time, the subject P moves forward once, and then moves slightly backward. Figure 2 illustrates the movement of the subject P with black arrows. Even when the subject P moves in this way, air is mainly blown towards the subject P from the first air blower 40.

[0034] As shown in Figure 2(b), subject P opens the door 10 and then moves forward through the door 10 to the office floor A. As subject P passes through the door 10, air is blown towards subject P from the second air blowers 50 located in front of and behind the door 10.

[0035] In this case, the subject P, who is walking, is unlikely to feel uncomfortable even if a slight breeze blows on them. Therefore, in this embodiment, the system is configured to blow air onto the subject P passing through the door 10 using a second air blower 50 with a higher wind speed than the first air blower 40. This allows for effective dust removal without causing discomfort to the subject P.

[0036] After the subject P moves to the office floor A, the opening / closing operation terminal 30 stops the first air blower 40 and the second air blower 50. The timing of stopping the first air blower 40, etc., can be determined arbitrarily. For example, the first air blower 40, etc., can be stopped when the door 10 is closed, or the first air blower 40, etc., can be stopped based on detection by various sensors that subject P has entered the office floor A.

[0037] In this way, subject P is removed from the dust before moving to the office floor A, thus preventing dust from being brought into the office floor A.

[0038] Furthermore, in order to ensure that the person P is exposed to the airflow for a longer period of time, it is possible to install, for example, hand sanitizer or a temperature measuring device near the opening / closing operation terminal 30. This allows the airflow to be blown onto the person P while they disinfect their hands, thus allowing the airflow to be blown onto the person P for a longer period of time, and ultimately enabling more effective dust removal.

[0039] Furthermore, when the subject P passes through the door 10 from the office floor A side to the corridor B side, the opening / closing operation terminal 30 does not activate the first air blower 40 and the second air blower 50. In other words, the dust removal system 1 can prevent the first air blower 40, etc. from activating even when dust removal is not required.

[0040] Furthermore, the opening / closing operation terminal 30 can also control the operation of the first air blower 40 and the second air blower 50 based on the movement history of the subject P. Specifically, the opening / closing operation terminal 30 acquires information about the subject P's movement history (places the subject P has been to so far) based on the information stored in the subject P's card key.

[0041] For example, if dust removal systems 1 are also installed in other rooms within the same building as office floor A, it can be assumed that when person P moves in from another room, person P has already been dust-removed by another dust removal system 1. In such cases, there is little need to perform dust removal on person P entering office floor A, so the opening / closing operation terminal 30 can be controlled to not activate the first air blower 40, etc.

[0042] On the other hand, if subject P has not moved from another room (if there is no record of them moving to another room), it is assumed that subject P moved to office floor A from outside the building (outdoors). In such cases, it is assumed that subject P has not yet been de-dusted, so the opening / closing operation terminal 30 activates the first air blower 40, etc., to de-dust subject P.

[0043] In this way, the opening / closing terminal 30 can efficiently remove dust by determining the need for dust removal based on the movement history of the target person P and performing dust removal only when necessary.

[0044] In the following section, the dust removal system 1 according to the second embodiment will be described using Figure 3(a).

[0045] The dust removal system 1 according to the second embodiment differs from that of the first embodiment in that it uses a camera 60 to detect the number of people passing through the door 10 and performs control according to that number. This will be explained in detail below.

[0046] Camera 60 is for detecting the number of people passing through door 10. Camera 60 is installed near door 10. Camera 60 images the area behind door 10 (towards passage B). This allows camera 60 to capture images of individuals P attempting to pass through door 10 from passage B. The opening / closing operation terminal 30 can determine the number of individuals P attempting to open door 10 by performing information processing such as image processing based on the imaging results from camera 60.

[0047] The following describes a dust removal method using the dust removal system 1 according to the second embodiment, with reference to Figures 3 and 4. Note that the dust removal method when there is only one person P attempting to pass through the door 10 is generally the same as in the first embodiment; therefore, the following description will focus on the case where there are multiple people P.

[0048] If there are multiple target persons P, it is assumed that only the first target person P will unlock the door 10 using a card key, and the second and subsequent target persons P will enter the office floor A with the first target person P without undergoing authentication with a card key. In this case, since the second and subsequent target persons P will not stop to authenticate with a card key, dust removal may not be performed sufficiently. Therefore, in the dust removal system 1 according to the second embodiment, when there are multiple target persons P, measures have been taken to increase the time for which air is blown on the target persons P and to increase the airflow speed. These will be explained in detail below.

[0049] When multiple individuals P pass through the door 10 from the corridor B to the office floor A, as shown in Figure 3(b), the first individual P performs card authentication using the opening / closing terminal 30. When the opening / closing terminal 30 detects the card key, it activates the first air blower 40 and the second air blower 50. As a result, air blows out from the first air blower 40 and the second air blower 50 toward the left and right inwards of the housing 20.

[0050] Furthermore, when the opening / closing operation terminal 30 detects a card key, it determines the number of subjects P attempting to pass through the door 10 based on the imaging results from the camera 60. Figure 3 shows an example where multiple subjects P (3 people) are attempting to pass through the door 10. When there are two or more subjects P (multiple people), the opening / closing operation terminal 30 delays the timing of unlocking the door 10 compared to when there is only one subject P. In other words, it increases the time required from reading the card key information to making the door 10 open (unlocking). By configuring it in this way, the time that multiple subjects P remain in front of the door 10 (on the passage B side) is increased, and consequently, wind can be blown onto multiple subjects P for a relatively long time.

[0051] Furthermore, the opening / closing operation terminal 30 increases the wind speed of the second air blower 50 when there are two or more target persons P (multiple people) compared to when there is only one target person P. For example, the opening / closing operation terminal 30 controls the wind speed of the second air blower 50 to 30 m / s (strong wind).

[0052] After door 10 is unlocked, as shown in Figure 4(a), the first subject P approaches door 10, grasps the doorknob, and pulls it towards them to open door 10. As shown in Figure 4(b), after opening door 10, multiple subjects P pass through door 10 forward and move to office floor A. When multiple subjects P pass through door 10, wind from the second air blowers 50, which are positioned in front of and behind door 10, is blown onto the subjects P. The wind speed of the second air blowers 50 is higher than when there is only one subject P, so a relatively strong wind can be blown onto the subjects P, enabling effective dust removal.

[0053] In the second embodiment, an example was shown in which the number of subjects P is detected using the camera 60. However, it is also possible to use the camera 60 to measure the temperature of subjects P. Furthermore, it is also possible to use the camera 60 to perform facial recognition and unlock the door 10.

[0054] Furthermore, while the second embodiment showed an example of increasing the wind speed of the second air blower 50, it is also possible to increase the wind speed of the first air blower 40, or to increase the wind speed of both the first air blower 40 and the second air blower 50.

[0055] As described above, the dust removal system 1 according to this embodiment is A dust removal system 1 that removes dust from a person P passing through door 10, A first air blower 40 blows air near an opening / closing operation terminal 30, which is provided on one side of the door 10 and allows for the opening and closing of the door 10, Near the door 10, a second air blower 50 blows out air at a stronger wind speed than the first air blower 40, A control unit (opening / closing operation terminal 30) controls the operation of the first air blower 40 and the second air blower 50 based on the operation of the opening / closing operation terminal 30, It is equipped with the following features. This configuration allows for efficient dust removal from people passing through the door 10. Specifically, by blowing air onto the person P operating the opening / closing terminal 30 and the person P passing through the door 10, dust removal from the person P can be efficiently achieved. Furthermore, by increasing the airflow speed when passing through the door 10, dust removal can be performed efficiently without causing discomfort to the person P.

[0056] Furthermore, the dust removal system 1 is The system further includes a static elimination unit (first air blower 40) that performs static elimination on the target person in the vicinity of the opening / closing operation terminal 30. By configuring it in this way, the dust removal rate can be increased.

[0057] Furthermore, the control unit (open / close operation terminal 30) When the subject P passes through the door 10 from one side (passageway B side) to the other side (office floor A side), the first air blower 40 and the second air blower 50 are activated. The first air blower 40 and the second air blower 50 are not activated when the subject P passes through the door 10 from the other side toward the one side. This configuration prevents the first air blower 40 and other components from operating unnecessarily.

[0058] Furthermore, the dust removal system 1 is The system further comprises a movement history acquisition unit (open / close operation terminal 30) that acquires information regarding the movement history of the aforementioned subject P, The control unit, The operation of the first air blower 40 and the second air blower 50 is controlled according to the movement history of the subject P. This configuration allows for efficient dust removal.

[0059] Furthermore, the dust removal system 1 is The system further includes a camera 60 (people detection unit) for detecting the number of persons P attempting to pass through the door 10, The control unit, If there are multiple persons P attempting to pass through the door 10 at once, the wind speed of at least one of the first air blower 40 and the second air blower 50 is increased compared to when there is only one person P attempting to pass through the door 10 at once. This configuration allows for effective dust removal even when multiple individuals P pass through the door 10 at the same time.

[0060] Furthermore, the dust removal system 1 is The system further includes a camera 60 (people detection unit) for detecting the number of persons P attempting to pass through the door 10, The control unit, It is possible to control the opening and closing of the door 10 based on the operation of the opening / closing operation terminal 30. If there are multiple persons P attempting to pass through the door 10 at once, the time required to open the door 10 based on the operation of the opening / closing terminal 30 will be longer than when there is only one person P attempting to pass through the door 10 at once. This configuration allows for effective dust removal even when multiple individuals P pass through the door 10 at the same time.

[0061] The opening / closing operation terminal 30 according to this embodiment is one form of implementation of the control unit and movement history acquisition unit according to the present invention. Furthermore, the first air blower 40 according to this embodiment is one form of the static elimination unit according to the present invention. Furthermore, the camera 60 according to this embodiment is one form of the person detection unit according to the present invention.

[0062] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0063] For example, although the above embodiment illustrates a hinged door 10, the type of door 10 is not limited to this, and various other types of doors 10 can be applied. Furthermore, the door 10 does not completely separate the two spaces, but may be various types of gates (turnstile type gate, flap door type gate).

[0064] Furthermore, although the above embodiment shows an example of static electricity removal by blowing ion-containing air onto the subject P from the first air blower 40, the method of static electricity removal is not limited to this, and it is also possible to provide a separate device for static electricity removal. In addition, it is also possible to remove dust from the subject P by blowing air alone without removing static electricity from the subject P.

[0065] Furthermore, in the above embodiment, an example was shown in which the opening / closing operation terminal 30 that opens and closes the door 10 (such as locking and unlocking the electronic lock) also performs control related to dust removal (control of the first air blower 40, etc.). However, the present invention is not limited to this, and it is also possible to control the first air blower 40, etc. by a separately provided control device.

[0066] Furthermore, although a camera 60 was used as an example of a person detection unit to detect the number of subjects P in the above embodiment, the present invention is not limited to this, and it is possible to detect the number of subjects P using various other devices (various sensors, etc.).

[0067] Furthermore, although the above embodiment shows an example in which the dust removal system 1 is installed between the office floor A and the corridor B, the present invention is not limited to this and can be installed in any location (for example, the entrance or exit of the building itself). [Explanation of Symbols]

[0068] 1. Dust removal system 10 Doors 30 Open / Close Operation Terminal 40 First ventilation section 50 Second blower section 60 Cameras

Claims

1. A dust removal system that removes dust from people passing through a door, A first air blower that blows air near an opening / closing operation terminal, which is provided on one side of the door and allows for the opening and closing of the door, Near the door, a second air blower blows out air at a stronger wind speed than the first air blower, A control unit that controls the operation of the first air blower and the second air blower based on the operation of the opening / closing terminal, A dust removal system equipped with the following features.

2. The system further comprises a static elimination unit that performs static elimination on the target person in the vicinity of the switching operation terminal. The dust removal system according to claim 1.

3. The control unit, When the person concerned passes through the door from one side to the other, the first and second air blowers are activated. The first and second air blowers are not activated when the person concerned passes through the door from the other side toward the one side. A dust removal system according to claim 1 or claim 2.

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