JP2021130919A - Door opening and closing control system - Google Patents

Abstract

To provide a door opening and closing control system capable of fixing an opening and closing position of a door.SOLUTION: A door opening and closing system 10 includes an acquisition unit 31 that acquires a signal relating to opening and closing of a door 80, a braking unit that fixes an opening and closing position of the door 80 by braking a connection member that connects the door 80 and a door frame 82, and a control unit 32 that controls the braking unit based on the signal acquired by the acquisition unit 31.SELECTED DRAWING: Figure 1

Description

The present invention relates to a door open / close control system.

Conventionally, various techniques related to doors provided in buildings have been proposed. For example, a door closer, which is a device for slowly and automatically closing a door by flood control, is known. Patent Document 1 discloses a door closer capable of smoothly hydraulically controlling the self-closing speed of the door.

Japanese Unexamined Patent Publication No. 2004-3293

The present invention provides a door opening / closing control system capable of fixing a door opening / closing position.

The door opening / closing control system according to one aspect of the present invention fixes the opening / closing position of the door by braking the acquisition unit that acquires a signal relating to the opening / closing of the door and the connecting member that connects the door and the door frame. It includes a braking unit and a control unit that controls the braking unit based on the signal acquired by the acquisition unit.

The door opening / closing control system according to one aspect of the present invention can fix the opening / closing position of the door.

FIG. 1 is a block diagram showing a functional configuration of a door opening / closing control system according to an embodiment. FIG. 2 is a view of the door to which the door opening / closing control system according to the embodiment is applied as viewed from the indoor side. FIG. 3 is a diagram showing a detailed structure (internal structure) of the door control device. FIG. 4 is a flowchart of an operation example 1 of the door opening / closing control system according to the embodiment. FIG. 5 is a flowchart of an operation example 2 of the door opening / closing control system according to the embodiment. FIG. 6 is a view from above of a state in which there are people on both sides (indoor side and outdoor side) of the door. FIG. 7 is a flowchart of an operation example 3 of the door opening / closing control system according to the embodiment. FIG. 8 is a flowchart of an operation example 4 of the door opening / closing control system according to the embodiment. FIG. 9 is a flowchart of an operation example 5 of the door opening / closing control system according to the embodiment. FIG. 10 is a flowchart of an operation example 6 of the door opening / closing control system according to the embodiment. FIG. 11 is a flowchart of an operation example 7 of the door opening / closing control system according to the embodiment. FIG. 12 is a flowchart of an operation example 8 of the door opening / closing control system according to the embodiment. FIG. 13 is a flowchart of an operation example 9 of the door opening / closing control system according to the embodiment. FIG. 14 is a flowchart of an operation example 10 of the door opening / closing control system according to the embodiment. FIG. 15 is a diagram showing a detailed structure (internal structure) of a door control device in which a motor functions as a braking unit and does not include an electromagnetic clutch.

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that all of the embodiments described below show comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, the components not described in the independent claims will be described as arbitrary components.

It should be noted that each figure is a schematic view and is not necessarily exactly shown. Further, in each figure, substantially the same configuration may be designated by the same reference numerals, and duplicate description may be omitted or simplified.

(Embodiment)
[overall structure]
First, the configuration of the door opening / closing control system according to the embodiment will be described. FIG. 1 is a block diagram showing a functional configuration of a door opening / closing control system according to an embodiment. FIG. 2 is a view of the door to which the door opening / closing control system according to the embodiment is applied as viewed from the indoor side.

As shown in FIG. 1, the door opening / closing control system 10 according to the embodiment is a system that controls the door 80. The door 80 is a so-called hinged door installed in a building such as a house. The door 80 is, for example, a front door, and is pushed open from the indoor side to the outdoor side. The building where the door 80 is installed and the installation position of the door 80 are not particularly limited. Specifically, the door open / close control system 10 includes a contact sensor 21, a motion sensor 22, a load sensor 23, a control device 30, a door control device 40, and an electric lock system 50. Hereinafter, each component included in the door opening / closing control system 10 will be described in detail.

[Contact sensor, motion sensor, load sensor]
First, the contact sensor 21, the motion sensor 22, and the load sensor 23 will be described. The contact sensor 21 is provided on the door handle 81 of the door 80 and detects that the user has touched the door handle 81. The contact sensor 21 outputs a signal indicating the detection result of the contact sensor 21 to the control device 30. This signal is an example of a signal relating to the opening and closing of the door 80. The contact sensor 21 is realized by, for example, a capacitance sensor, but may be realized by a pressure sensor or the like. The specific mode of the contact sensor 21 is not particularly limited. Although not shown, the door handle 81 is provided not only on the indoor side of the door 80 but also on the outdoor side of the door 80, and the contact sensor 21 is provided on each of the two door handles 81.

The motion sensor 22 is provided on the outdoor side of the door 80 and detects the presence or absence of a person on the outdoor side of the door 80. Further, the motion sensor 22 outputs a signal indicating the detection result of the motion sensor 22 to the control device 30. This signal is an example of a signal relating to the opening and closing of the door 80. The motion sensor 22 is realized by, for example, a pyroelectric sensor that reacts to infrared rays emitted from the human body, but may be an ultrasonic motion sensor or the like. The specific mode of the motion sensor 22 is not particularly limited.

The load sensor 23 is provided on the indoor side surface of the door 80, and detects a load applied to the door 80 from the indoor side. Further, the load sensor 23 outputs a signal indicating the detection result of the load sensor 23 to the control device 30. This signal is an example of a signal relating to the opening and closing of the door 80. The load sensor 23 is realized by, for example, a capacitance sensor, but may be realized by a pressure sensor or the like. The specific mode of the load sensor 23 is not particularly limited.

[Changeover switch]
The changeover switch 24 is a hardware switch operated by the user to switch between fixing and releasing the opening / closing position of the door 80. Further, the changeover switch 22 outputs a signal indicating that the changeover switch 22 has been operated to the control device 30 each time the changeover switch 22 is operated. This signal is an example of a signal relating to the opening and closing of the door 80.

The changeover switch 24 is provided, for example, on the door handle 81, but may be provided on other parts of the door 80. Although not shown, the door handle 81 may be provided not only on the indoor side of the door 80 but also on the outdoor side of the door 80, and the changeover switch 24 may be provided on each of the two door handles 81. ..

[Control device]
Next, the control device 30 will be described. The control device 30 controls the opening / closing of the door 80 and the opening / closing position fixing control of the door 80. In other words, the open / close position fixed control here is a hold control (hold control), and the open / close position (open / close state) even if the user pushes the door 80 regardless of whether the door 80 is in the open state or the closed state. It is a control that fixes (holds) the opening / closing position so that it does not move from the door. In the example of FIG. 2, the control device 30 is provided on the indoor surface of the door 80, for example, but the installation position of the control device 30 is not particularly limited. Although the control device 30 is shown as a device separate from the door control device 40 in FIG. 2, it may be realized as a device integrated with the door control device 40. Specifically, the control device 30 includes an acquisition unit 31, a control unit 32, and a storage unit 33.

The acquisition unit 31 acquires a signal regarding opening / closing of the door 80. Specifically, the acquisition unit 31 acquires signals from each of the contact sensor 21, the motion sensor 22, the load sensor 23, the open / close position sensor 46, and the electric lock system 50. Specifically, in the acquisition unit 31, the control device 30 communicates with the contact sensor 21, the motion sensor 22, the load sensor 23, the door control device 40 (open / close position sensor 46), and the electric lock system 50. Communication circuit. The acquisition unit 31 is, for example, a wired communication circuit that performs wired communication, but may be a wireless communication circuit that performs wireless communication. The communication standard of the communication performed by the acquisition unit 31 is not particularly limited.

The control unit 32 performs information processing related to the opening / closing control of the door 80 and the opening / closing position fixing control of the door 80. The control unit 32 is realized by, for example, a microcomputer, but may be realized by a processor or a dedicated circuit.

The storage unit 33 is a storage device that stores a control program or the like executed by the control unit 32. The storage unit 33 is realized by, for example, a semiconductor memory.

[Door control device]
Next, the door control device 40 will be described. The door control device 40 is a drive device for the control device 30 to control the opening / closing of the door 80 and the hold control of the door 80. At first glance, the door control device 40 has a structure very similar to a so-called door closer. FIG. 3 is a diagram showing a more detailed structure (internal structure) of the door control device 40. The door control device 40 is provided, for example, on the indoor surface of the door 80. It includes an opening / closing arm 41, a shaft body 42, a motor 43, a speed reducer 44, an electromagnetic clutch 45, an opening / closing position sensor 46, and a housing 47.

The opening / closing arm 41 is an example of a connecting member that connects the door 80 and the door frame 82. The opening / closing arm 41 has two arms that are connected so as to be openable / closable in the opening / closing portion 41a. One end 41b of the opening / closing arm 41 is movably connected to the door frame 82. The other end 41c of the opening / closing arm 41 is fixed to the shaft body 42. The opening / closing arm 41 is made of, for example, a metal material.

The opening / closing arm 41 may be a parallel type that is parallel to the door 80 when the door 80 is closed, or a standard type that is perpendicular to the door 80 when the door 80 is closed. It may be.

The shaft body 42 is a rod-shaped structure whose rotation is braked in order to perform regenerative control of the door 80 and control of fixing the opening / closing position of the door 80. The shaft body 42 may be configured as a part of the opening / closing arm 41. The shaft body 42 is held by the door 80 so as to rotate according to the opening and closing of the door 80. The shaft body 42 may be formed of a single member, but in the door control device 40, the first shaft body 42a and the second shaft body 42b arranged in the axial direction (vertical direction in FIG. 3) are elastic members. It is configured by being elastically connected by 42c.

The first shaft body 42a is fixed to the other end 41c of the opening / closing arm 41, and the second shaft body 42b is connected to the speed reducer 44. Each of the first shaft body 42a and the second shaft body 42b is formed of, for example, a metal material. The elastic member 42c is, for example, a coil spring, but may be a torsion spring or the like.

The motor 43 is an electric drive source that rotates the shaft body 42. The motor 43 is, for example, a DC motor or the like. The motor 43 operates based on the control signal output from the control unit 32. The mover of the motor 43 is connected to the speed reducer 44.

The speed reducer 44 is a device for reducing the speed of the mover of the motor 43 by using a gear and rotating the shaft body 42 at the reduced speed. The speed reducer 44 may be omitted.

The electromagnetic clutch 45 brakes (stops) the rotation of the shaft body 42 by an electromagnetic force. The electromagnetic clutch 45 has a coil 45b connected to the housing 47 via an elastic member 45a, a magnetic body 45c fixed to the second shaft body 42b, and a brake pad 45d. For example, in the electromagnetic clutch 45, the brake pad 45d is pressed against the inner surface of the housing 47 when no current is flowing through the coil 45b, and the pressing is released when the current is passed through the coil 45b by the control unit 32. NS. When the brake pad 45d is pressed against the inner surface of the housing 47, the rotation of the shaft body 42 is braked (stopped) by the frictional force generated between the brake pad 45d and the inner surface of the housing 47.

In the electromagnetic clutch 45, when a current is passed through the coil 45b by the control unit 32, the brake pad 45d is pressed against the inner surface of the housing 47 by the repulsive force (electromagnetic force) received by the magnetic body 45c from the coil 45b, and the coil. The brake pad 45d may be released from being pressed against the inner surface of the housing 47 when no current is flowing through the 45b. The electromagnetic clutch 45 is turned on (fixed at the opening / closing position of the door 80) and turned off (unfixed at the opening / closing position of the door 80) based on the control signal output by the control unit 32. The electromagnetic clutch 45 only needs to be able to brake the opening / closing arm 41 using electric power, and the specific embodiment of the electromagnetic clutch 45 is not particularly limited.

The electromagnetic clutch 45 may brake the shaft body 42 in three stages (for example, on, intermediate, and off) or more in stages. That is, the electromagnetic clutch 45 may not only fix and release the position of the door 80, but also slow down the movement of the door 80.

The open / close position sensor 46 detects the open / closed state of the door 80. Further, the open / close position sensor 46 outputs a signal indicating the detection result (open / close state of the door) of the open / close position sensor 46 to the control device 30. This signal is an example of a signal relating to the opening and closing of the door 80. The open / close position sensor 46 is, for example, a magnetic encoder. Specifically, the open / close position sensor 46 detects the position of the magnetic body 46b fixed to the first shaft body 42a by using the detection substrate 46a provided with the Hall element fixed inside the housing 47a. By doing so, the rotation angle of the shaft body 42 with respect to the housing 47 is detected as the open / closed state of the door 80.

The open / close position sensor 46 may be an optical encoder. The open / close position sensor 46 may detect at least a state in which the door 80 is closed and a state other than this (a state in which the door 80 is opened at an arbitrary angle).

The housing 47 is provided on the indoor surface of the door 80, and houses the shaft body 42, the motor 43, the speed reducer 44, the electromagnetic clutch 45, and the open / close position sensor 46. Further, the housing 47 rotatably holds the shaft body 42. According to the housing 47, the shaft body 42 is held by the door 80 so as to rotate according to the opening and closing of the door 80. The housing 47 has a rectangular parallelepiped shape, for example, and is formed of a metal material or the like.

[Electric lock system]
Next, the electric lock system 50 will be described. The electric lock system 50 is a system for locking and unlocking the door 80 using the electric lock 51. Specifically, the electric lock 51 has a dead bolt, an electric motor, and a transmission mechanism for transmitting the driving force of the electric motor to the dead bolt. The electric motor is driven according to a drive signal output from the lock drive unit 53, and the driving force of the electric motor is transmitted to the dead bolt via a transmission mechanism, so that the dead bolt moves to the locking position or the unlocking position. ..

In addition to the electric lock 51, the electric lock system 50 includes an authentication unit 52, a lock drive unit 53, an electric lock control unit 54, a storage unit 55, and a biometric authentication unit 56.

The authentication unit 52 reads the authentication information from a card key, a mobile terminal, or the like, and outputs the read authentication information to the electric lock control unit 54. The authentication unit 52 is realized by a wireless communication circuit that performs wireless communication (specifically, radio wave communication or optical communication) for acquiring authentication information from a device such as a card key or a mobile terminal. The authentication unit 52 may be a user interface that accepts authentication information such as a numeric keypad (in this case, an unlocking code or the like). The authentication unit 52 is provided on the outdoor side of the door 80, for example, but may also be provided on the indoor side of the door 80.

The lock drive unit 53 is a drive device for driving the electric lock 51. Specifically, the lock drive unit 53 outputs a drive signal to the electric motor of the electric lock 51 based on the control signal output from the electric lock control unit 54. The lock drive unit 53 may be included in the electric lock 51.

The electric lock control unit 54 controls the electric lock 51 based on the information acquired from the authentication unit 52. Specifically, when the electric lock control unit 54 determines that the authentication information acquired from the authentication unit 52 (or the biometric authentication information acquired from the biometric authentication unit 56) matches the registered information, the electric lock 51 (door) 80) Lock and unlock. Further, the electric lock control unit 54 outputs a signal indicating the locked state (whether locked or unlocked) of the electric lock 51 (door 80) to the control device 30. This signal is an example of a signal relating to the opening and closing of the door 80. The electric lock control unit 54 is realized by, for example, a microcomputer, but may be realized by a processor.

The storage unit 55 is a storage device that stores a control program executed by the electric lock control unit 54, the above-mentioned registration information, and the like. The storage unit 55 is realized by, for example, a semiconductor memory.

The biometric authentication unit 56 reads the biometric authentication information of the user from the user and outputs the read biometric authentication information to the electric lock control unit 54. The biometric authentication unit 56 is realized by, for example, a camera module that reads a user's face image or a user's iris pattern, a fingerprint sensor that reads a user's fingerprint, or the like. The biometric authentication unit 56 is provided, for example, on the outdoor side of the door 80, but may also be provided on the indoor side of the door 80 as shown in FIG.

[Operation example 1]
The door open / close control system 10 can fix (hold) the position of the door 80 when the door 80 is closed. Hereinafter, operation example 1 of the door opening / closing control system 10 will be described. FIG. 4 is a flowchart of an operation example 1 of the door opening / closing control system 10.

The acquisition unit 31 of the control device 30 acquires a signal indicating the open / closed state of the door 80, which is output by the open / close position sensor 46 of the door control device 40 (S11).

When the control unit 32 determines that the door 80 has transitioned from the open state to the closed state based on the signal acquired by the acquisition unit 31 (S12), the control unit 32 outputs a control signal to the electromagnetic clutch 45 of the door control device 40. By doing so, the shaft body 42 is braked (stopped). That is, the control unit 32 fixes the position of the door to the electromagnetic clutch 45 with the door 80 closed based on the signal acquired by the acquisition unit 31 (S13).

As described above, the door open / close control system 10 can realize the function corresponding to the latch bolt of a general door without the latch bolt. That is, the door 80 without the latch bolt can be realized. Further, since a mechanism for releasing the latch bolt is not required, it becomes easy to reduce the size of the door handle 81, improve the strength of the door handle 81, and improve the design of the door 80.

After that, the acquisition unit 31 acquires a signal indicating the user's contact state with the door handle 81, which is output by the contact sensor 21 provided on the door handle 81 on the indoor side or the outdoor side (S14). When the control unit 32 determines that the user is in contact with the door handle 81 based on the signal acquired by the acquisition unit 31 (S15), the control unit 32 outputs a control signal to the electromagnetic clutch 45 of the door control device 40. , The braking of the shaft body 42 is released. That is, the control unit 32 causes the electromagnetic clutch 45 to release the fixed position of the door 80 based on the signal acquired by the acquisition unit 31 (S16). The state in which the position of the door 80 is released is continued until, for example, the next detection that the door 80 is in the closed state is detected.

In this way, when the user grips the door handle 81, the door open / close control system 10 releases the fixing of the position of the door 80 by using this as a trigger. As a result, the same function as a mechanism for releasing the latch bolt of a general door can be realized.

[Operation example 2]
The door opening / closing control system 10 can fix the position of the door 80 when the door 80 is open (the opening / closing angle of the door 80 is arbitrary). Hereinafter, operation example 2 of the door opening / closing control system 10 will be described. FIG. 5 is a flowchart of operation example 2 of the door opening / closing control system 10.

The acquisition unit 31 of the control device 30 acquires a signal output by the contact sensor 21 provided on the door handle 81 on the indoor side or the outdoor side (S21), and the control unit 32 acquires the signal acquired by the acquisition unit 31. By monitoring, it is determined whether or not the user is in contact with the door handle 81 (S22).

When the control unit 32 determines that the user is not in contact with the door handle 81 (No in S22), the control unit 32 brakes (stops) the shaft body 42 by outputting a control signal to the electromagnetic clutch 45 of the door control device 40. .. That is, the control unit 32 fixes the position of the door 80 to the electromagnetic clutch 45 (S23). On the other hand, when the control unit 32 determines that the user is in contact with the door handle 81 (Yes in S22), the control unit 32 releases the braking of the shaft body 42 by outputting a control signal to the electromagnetic clutch 45 of the door control device 40. Let me. That is, the control unit 32 causes the electromagnetic clutch 45 to release the fixed position of the door 80 (S24).

In this way, the door open / close control system 10 allows the door 80 to move while the user is holding the door handle 81, and fixes the position of the door 80 when the user releases the door handle 81. can. The user can fix the door 80 in an open state without using a door stopper or the like by simply releasing the door handle 81 at a desired opening / closing position. By eliminating the door stopper, it becomes easy to improve the design of the door 80.

When the control unit 32 determines that the opening angle of the door 80 is equal to or greater than a predetermined angle based on the opening / closing position indicated by the opening / closing position sensor 46, the control unit 32 fixes the position of the door 80 to the electromagnetic clutch 45 and fixes the position of the door 80 to the door 80. When it is determined that the opening angle of the door 80 is equal to or greater than a predetermined angle, the position of the door 80 may be released from being fixed.

[Operation example 3]
By the way, the door 80 is, for example, a front door, and is pushed open from the indoor side to the outdoor side. Here, as shown in FIG. 6, when a user located on the indoor side (hereinafter, also referred to as user A) tries to open the door 80, another user (hereinafter, also referred to as user A) is on the outdoor side of the door 80. If there is a user B), there is a risk that the door 80 will hit the user B. FIG. 6 is a view from above of a state in which people are present on both sides (indoor side and outdoor side) of the door 80, and in FIG. 6, the position of the open door 80 is indicated by a broken line.

The door open / close control system 10 can also fix the position of the door 80 in the above situation. Hereinafter, operation example 3 of such a door opening / closing control system 10 will be described. FIG. 7 is a flowchart of an operation example 3 of the door opening / closing control system 10.

The control unit 32 of the control device 30 is in the closed state based on the signal output by the open / close position sensor 46 of the door control device 40 and indicating the open / close position of the door 80 acquired by the acquisition unit 31. (S31), and the position of the door is fixed to the electromagnetic clutch 45 in the state where the door 80 is closed (S32).

After that, the control unit 32 is output by the contact sensor 21 provided on the door handle 81 on the indoor side, and the user A contacts the door handle 81 on the indoor side based on the signal acquired by the acquisition unit 31. (S33). In this case, the control unit 32 basically releases the fixing of the door position. However, in the operation example 3, the control unit 32 monitors the signal output by the motion sensor 22 and acquired by the acquisition unit 31, and whether or not there is another user B on the outdoor side of the door 80. Is determined (S34).

When the control unit 32 determines that there is no other user B on the outdoor side of the door 80 (No in S34), the control unit 32 releases the braking of the shaft body 42 by outputting a control signal to the electromagnetic clutch 45 of the door control device 40. Let me. That is, the control unit 32 causes the electromagnetic clutch 45 to release the fixing of the door position (S35). On the other hand, when the control unit 32 determines that another user B is on the outdoor side of the door 80 (Yes in S34), the control unit 32 keeps the position of the door 80 fixed.

As described above, in the door open / close control system 10, when the user A located on the indoor side tries to open the door 80 and another user B is on the outdoor side of the door 80, the user A is the door handle 81. The position of the door 80 is not released even if the door 80 is gripped. This improves the safety when opening the door 80.

When the control unit 32 determines that another user B is on the outdoor side of the door 80 (Yes in S34), the control unit 32 fixes the position of the door 80 (for example, when the door 80 is in the closed state). The electromagnetic clutch 45 may be operated with a force weaker than that when the position of the door 80 is released (for example, when the door 80 is in the open state). That is, the control unit 32 may increase the force required to open the door 80 more than usual. As a result, the door 80 is prevented from opening suddenly, so that the safety when opening the door 80 is improved.

Further, in the operation example 3, the door open / close control system 10 uses the motion sensor 22 to detect the user B on the outdoor side, but the load sensor 23 is provided on the outdoor surface of the door 80. In such a case, the load sensor 23 can be used to detect the user B. Further, the door open / close control system 10 can also detect the user B by the contact sensor 21 provided on the door handle 81 on the outdoor side.

[Operation example 4]
Further, in the situation shown in FIG. 6, when the user B located on the outdoor side tries to open the door 80, another user A leans against the door 80 on the indoor side of the door 80. In that case, there is a risk that the user A will fall.

The door open / close control system 10 can also fix the position of the door 80 in the above situation. Hereinafter, operation example 4 of such a door opening / closing control system 10 will be described. FIG. 8 is a flowchart of an operation example 4 of the door opening / closing control system 10.

The control unit 32 of the control device 30 is in the closed state based on the signal output by the open / close position sensor 46 of the door control device 40 and indicating the open / close position of the door 80 acquired by the acquisition unit 31. (S41), and the position of the door is fixed to the electromagnetic clutch 45 in the state where the door 80 is closed (S42).

After that, the control unit 32 contacts the outdoor door handle 81 with the user B based on the signal output by the contact sensor 21 provided on the outdoor door handle 81 and acquired by the acquisition unit 31. (S43). In this case, the control unit 32 basically releases the fixing of the door position. However, in the operation example 4, the control unit 32 monitors the signal output by the load sensor 23 and acquired by the acquisition unit 31 to determine whether or not there is another user A on the indoor side of the door 80. Judgment (S44).

When the control unit 32 determines that there is no other user A on the indoor side of the door 80 (specifically, the user A is not leaning against the door 80) (No in S44), the electromagnetic clutch of the door control device 40 By outputting a control signal to 45, the braking of the shaft body 42 is released. That is, the control unit 32 causes the electromagnetic clutch 45 to release the fixing of the door position (S45). On the other hand, when the control unit 32 determines that another user A is on the indoor side of the door 80 (specifically, the user A is leaning against the door 80) (Yes in S44), the position of the door 80 is changed. Stay fixed.

As described above, in the door open / close control system 10, when another user A leans against the indoor side of the door 80 when the user B located on the outdoor side tries to open the door 80, the user B causes the door open / close control system 10. Even if the door handle 81 is gripped, the position of the door 80 is not released. This improves the safety when opening the door 80.

When the control unit 32 determines that another user A is leaning on the indoor side of the door 80 (Yes in S44), the control unit 32 fixes the position of the door 80 (for example, the door 80 is in the closed state). The electromagnetic clutch 45 may be operated with a force weaker than that (when) and stronger than when the position of the door 80 is released (for example, when the door 80 is in the open state). That is, the control unit 32 may increase the force required to open the door 80 more than usual. As a result, the door 80 is prevented from opening suddenly, so that the safety when opening the door 80 is improved.

Further, in the operation example 4, the door open / close control system 10 uses the load sensor 23 to detect the user A on the indoor side, but the motion sensor 22 for detecting the indoor side of the door 80 is provided. In such a case, the human sensor 22 can be used to detect the user A. Further, the door open / close control system 10 can also detect the user A by the contact sensor 21 provided on the door handle 81 on the indoor side.

[Operation example 5]
The door opening / closing control system 10 can also automatically open / close the door 80 by the motor 43. FIG. 9 is a flowchart of an operation example 5 of such a door opening / closing control system 10.

The acquisition unit 31 of the control device 30 acquires a signal indicating the open / close position of the door 80, which is output by the open / close position sensor 46 of the door control device 40 (S51). The control unit 32 determines whether or not a predetermined period has elapsed since the door 80 transitioned from the closed state to the open state based on the signal indicating the open / closed position of the door 80 acquired by the acquisition unit 31 (S52). ).

When the control unit 32 determines that a predetermined period has elapsed since the door 80 transitioned from the closed state to the open state (Yes in S52), the control unit 32 outputs a control signal to the motor 43 to rotate the mover of the motor 43. The door 80 is closed (S53). In other cases (No in S52), the door 80 is not closed by using the motor 43.

As described above, when the door opening / closing control system 10 determines that the door 80 remains open for a predetermined period or longer based on the signal output by the opening / closing position sensor 46, the door 80 is controlled by controlling the motor. close. As a result, it is possible to suppress the occurrence of forgetting to close the door 80.

By the way, in the door control device 40, the shaft body 42 is formed by elastically connecting the first shaft body 42a and the second shaft body 42b by the elastic member 42c. When a strong force contrary to elasticity is applied to such a shaft body 42, one of the first shaft body 42a and the second shaft body 42b moves with respect to the other, and the shaft body 42 is in a twisted state.

The control unit 32 rotates the motor 43 until the shaft body 42 twists against the elasticity of the elastic member 42c to close the door 80, so that the door 80 is provided between the door 80 and the door frame 82 by utilizing the elasticity. It can be brought into close contact with the packing (not shown). That is, the airtightness of the building provided with the door 80 can be improved. In this case, how much the motor 43 is rotated is experimentally determined in consideration of, for example, the elasticity of the elastic member 42c.

[Operation example 6]
By the way, in recent years, the airtightness of the building has improved. For example, when a ventilation fan or the like is used in the building, the door 80 comes into close contact with the packing, and a relatively large force is applied to open the door 80. May be required. Specifically, it may be difficult for a woman or a child to open the door 80. Therefore, the door open / close control system 10 may assist the user in opening the door 80 by controlling the motor 43. FIG. 10 is a flowchart of an operation example 6 of such a door opening / closing control system 10.

The processing of steps S61 to S66 is the same as the processing of steps S11 to S16 of the operation example 1. After step S16, the control unit 32 controls the motor 43 to rotate the shaft body 42 by a predetermined amount in the direction in which the door 80 opens (S67). At this time, the control unit 32 may rotate the shaft body 42 only to the extent that the door 80 opens slightly (to the extent that the door 80 and the packing are peeled off), or the shaft body 42 may rotate until the door is opened to some extent. The body 42 may be rotated. How much the motor 43 is rotated is determined, for example, empirically or experimentally.

In this way, the door open / close control system 10 can assist the user in opening the door 80 by controlling the motor 43.

[Operation example 7]
The door opening / closing control system 10 can also assist the user in opening the door 80 by utilizing the twist of the shaft body 42 described in the operation example 5. FIG. 11 is a flowchart of an operation example 7 of such a door opening / closing control system 10.

The control unit 32 of the control device 30 is in the closed state based on the signal output by the open / close position sensor 46 of the door control device 40 and indicating the open / close position of the door 80 acquired by the acquisition unit 31. (S71), the shaft body 42 is rotated by a predetermined amount in the direction in which the door 80 is closed by controlling the motor 43 (S72). Specifically, the control unit 32 rotates the motor 43 until the shaft body 42 twists against the elasticity of the elastic member 42c. How much the motor 43 is rotated is experimentally determined in consideration of, for example, the elasticity of the elastic member 42c. Then, the control unit 32 fixes the position of the door to the electromagnetic clutch 45 in a state where the door 80 is closed and the shaft body 42 is twisted (S73).

After that, the control unit 32 is based on a signal output by the contact sensor 21 provided on the door handle 81 on the indoor side or the outdoor side and indicating the user's contact state with the door handle 81 acquired by the acquisition unit 31. When it is determined that the user is in contact with the door handle 81 (S74), the electromagnetic clutch 45 of the door control device 40 releases the fixed position of the door 80 (S75). Then, in step S73, the door 80 is fixed in a state where the shaft body 42 is twisted against elasticity, so that the door 80 is slightly opened by the force that the shaft body 42 tries to return to its original position. For example, when the door 80 and the packing are in close contact with each other, the door 80 and the packing are in close contact with each other.

In this way, the door opening / closing control system 10 rotates the shaft body 42 in the direction in which the door 80 closes until one of the first shaft body 42a and the second shaft body 42b moves (twists) with respect to the other, and the door 80. Is closed, and the position of the door 80 is fixed by controlling the electromagnetic clutch 45 in this state. After that, the control unit 32 releases the fixing of the position of the door 80 by controlling the electromagnetic clutch 45 based on the signal acquired by the acquisition unit 31. This makes it possible to assist the user in opening the door 80 by utilizing the elasticity of the elastic member 42c.

[Operation example 8]
The door opening / closing control system 10 can also fix the opening / closing position of the door 80 and release the opening / closing position in conjunction with the electric lock system 50. The door opening / closing control system 10 can release the fixing of the opening / closing position of the door 80, for example, triggered by the unlocking of the door 80. FIG. 12 is a flowchart of an operation example 8 of such a door opening / closing control system 10.

The control unit 32 of the control device 30 is in the closed state based on the signal output by the open / close position sensor 46 of the door control device 40 and indicating the open / close position of the door 80 acquired by the acquisition unit 31. (S81), the position of the door is fixed to the electromagnetic clutch 45 (S82).

After that, the acquisition unit 31 acquires a signal indicating the locked state of the door 80, which is output by the electric lock control unit 54 of the electric lock system 50 (S83). When the control unit 32 determines that the door 80 has transitioned from the locked state to the unlocked state based on the signal indicating the locked state of the door 80 acquired by the acquisition unit 31 (S84), the electromagnetic clutch of the door control device 40 Let 45 release the fixing of the position of the door 80 (S85).

In this way, the door opening / closing control system 10 releases the fixing of the opening / closing position of the door 80, for example, triggered by the unlocking of the door 80. The user can release the fixing of the position of the door 80 only by performing an operation for unlocking the electric lock 51. That is, the door opening / closing control system 10 can improve the convenience of the user.

[Operation example 9]
Further, the door opening / closing control system 10 can automatically lock the door 80 when the door 80 is closed. FIG. 13 is a flowchart of an operation example 9 of such a door opening / closing control system 10.

The acquisition unit 31 of the control device 30 acquires a signal indicating the open / close position of the door 80, which is output by the open / close position sensor 46 of the door control device 40 (S91). The control unit 32 determines whether or not a predetermined period has elapsed since the door 80 transitioned from the closed state to the open state based on the signal indicating the open / closed position of the door 80 acquired by the acquisition unit 31 (S92). ).

When the control unit 32 determines that a predetermined period has elapsed since the door 80 transitioned from the closed state to the open state (Yes in S92), the control unit 32 outputs a control signal to the motor 43 to rotate the mover of the motor 43. The door 80 is closed (S93). In other cases (No in S92), the door 80 is not closed and locked using the motor 43.

After step S93, the control unit 32 further locks the door 80 (electric lock 51) on the electric lock system 50 (S94). The control unit 32 causes the electric lock system 50 to lock the door 80 (electric lock 51) by, for example, transmitting a locking command to the electric lock control unit 54 of the electric lock system 50. Alternatively, the control unit 32 transfers a signal indicating the opening / closing position of the door 80 output by the opening / closing position sensor 46 of the door control device 40 to the electric lock control unit 54, and the electric lock control unit 54 transfers the transferred signal. When it is determined that the door 80 is in the closed state based on the above, the electric lock 51 may be locked to the door 80.

As described above, when the door opening / closing control system 10 determines that the door 80 remains open for a predetermined period or longer, the door 80 is closed by controlling the motor 43, and the door 80 is further attached to the electric lock system 50. Lock it. As a result, it is possible to suppress the occurrence of forgetting to lock the door 80.

By the way, when the door 80 is automatically locked in this way, a user who does not have a card key or the like may be mistakenly locked out of the building where the door 80 is provided. In such a case, if the electric lock system 50 has the biometric authentication unit 56, the user can unlock the door 80 by receiving the biometric authentication.

[Operation example 10]
In the door opening / closing control system 10, the opening / closing position of the door 80 may be fixed and released based on the operation of the changeover switch 24. FIG. 14 is a flowchart of an operation example 10 of such a door opening / closing control system 10.

The acquisition unit 31 of the control device 30 acquires the signal output from the changeover switch 24 (S101). The control unit 32 switches between fixing and releasing the opening / closing position of the door 80 to the electromagnetic clutch 45 of the door control device 40 based on the signal acquired by the acquisition unit 31 (S102). For example, the control unit 32 switches between fixing and releasing the opening / closing position of the door 80 each time the changeover switch 24 is operated.

In this way, the door opening / closing control system 10 can switch between fixing and releasing the opening / closing position of the door 80 by operating the changeover switch 24.

[Modification example]
In the door open / close control system 10, the door control device 40 includes a motor 43 and a speed reducer 44, but the motor 43 and the speed reducer 44 are not essential. The door control device 40 may have, for example, a configuration in which an electromagnetic clutch 45 is provided on an existing spring-hydraulic door closer.

Further, in the door control device 40, the electromagnetic clutch 45 is an example of a braking unit. The door control device 40 may include a braking unit other than the electromagnetic clutch 45 instead of the electromagnetic clutch 45. For example, the control unit 32 may function as a braking unit by performing short brake control (pole short circuit control) on the motor 43. FIG. 15 is a diagram showing a detailed structure (internal structure) of the door control device 40a in which the motor 43 functions as a braking unit and does not include the electromagnetic clutch 45.

Further, in the door control device 40, the opening / closing arm 41 is used as a connecting member for connecting the door 80 and the door frame 82, but the connecting member is not limited to the opening / closing arm 41. For example, the connecting member may be a member corresponding to a hinge.

[Effects, etc.]
As described above, the door opening / closing control system 10 brakes the connecting member that connects the door 80 and the door frame 82 with the acquisition unit 31 that acquires the signal related to the opening / closing of the door 80, thereby opening / closing the door 80. A braking unit for fixing the door and a control unit 32 for controlling the braking unit based on the signal acquired by the acquisition unit 31 are provided.

In such a door opening / closing control system 10, the opening / closing position of the door 80 can be fixed by braking the connecting member.

Further, the control unit 32 fixes the door 80 to the braking unit at the position where the door 80 is closed, based on the signal acquired by the acquisition unit 31.

In such a door opening / closing control system 10, the door 80 can be fixed at a position where the door 80 is closed by braking the connecting member.

Further, the control unit 32 fixes the door 80 to the braking unit at the position where the door 80 is opened, based on the signal acquired by the acquisition unit 31.

In such a door opening / closing control system 10, the door 80 can be fixed at a position where the door 80 is opened by braking the connecting member.

Further, for example, the door open / close control system 10 further includes a contact sensor 21 that detects that the user has touched the door handle 81 of the door 80. The control unit 32 controls the braking unit based on the signal output by the contact sensor 21 and acquired by the acquisition unit 31.

Such a door opening / closing control system 10 can fix the opening / closing position of the door 80 based on whether or not the user touches the door handle 81.

Further, for example, the door open / close control system 10 further includes a motion sensor 22 that detects the presence or absence of a person in the vicinity of the door 80. The control unit 32 controls the braking unit based on the signal output by the motion sensor 22 and acquired by the acquisition unit 31.

Such a door opening / closing control system 10 can fix the opening / closing position of the door 80 based on the detection result of the motion sensor 22.

Further, for example, the door opening / closing control system 10 further includes a load sensor that detects a load applied to the door 80. The control unit 32 controls the braking unit based on the signal output by the load sensor 23 and acquired by the acquisition unit 31.

Such a door opening / closing control system 10 can fix the opening / closing position of the door 80 based on the load applied to the door 80.

Further, for example, the connecting member is an opening / closing arm 41 in which one end 41b is movably connected to the door frame 82 and the other end 41c is fixed to the shaft body 42. The shaft body 42 is held by the door 80 so as to rotate according to the opening and closing of the door 80. The braking unit fixes the opening / closing position of the door 80 by braking the rotation of the shaft body 42.

In such a door opening / closing control system 10, the opening / closing position of the door 80 can be fixed by braking the opening / closing arm 41.

Further, for example, the door opening / closing control system 10 further includes a motor 43 for rotating the shaft body 42. The control unit 32 opens and closes the door 80 by controlling the motor 43.

Such a door opening / closing control system 10 can open / close the door 80 by controlling the motor 43.

Further, for example, the door open / close control system 10 further includes an open / close position sensor 46 that detects an open / closed state of the door 80. When the control unit 32 determines that the door 80 remains open for a predetermined period or longer based on the signal output by the open / close position sensor 46, the control unit 32 closes the door 80 by controlling the motor 43.

Such a door opening / closing control system 10 can prevent forgetting to close the door 80 by automatically closing the door 80.

Further, for example, the motor 43 also functions as a braking unit by braking the rotation of the shaft body 42.

Such a door opening / closing control system 10 can fix the opening / closing position of the door 80 by controlling the motor 43.

Further, for example, the braking portion is an electromagnetic clutch 45 that brakes the rotation of the shaft body 42.

In such a door opening / closing control system 10, the opening / closing position of the door 80 can be fixed by the electromagnetic clutch 45.

Further, for example, the shaft body 42 is configured by elastically connecting the first shaft body 42a and the second shaft body 42b arranged in the axial direction.

Such a door opening / closing control system 10 can control the door 80 to be brought into close contact with the packing or the like provided on the door frame 82 by utilizing the elasticity of the shaft body 42.

Further, for example, the control unit 32 controls the motor 43 in a state where the door 80 is closed, so that the shaft body 42 is rotated by a predetermined amount in the direction in which the door 80 is opened.

Such a door opening / closing control system 10 can assist the user in opening the door 80.

Further, for example, the control unit 32 rotates the shaft body 42 in the direction in which the door 80 closes until one of the first shaft body 42a and the second shaft body 42b moves with respect to the other to close the door 80. After fixing the position of the door 80 by controlling the braking unit in this state, the fixing of the opening / closing position of the door 80 is released by controlling the braking unit based on the signal acquired by the acquisition unit 31.

Such a door opening / closing control system 10 can assist the user to open the door 80 by utilizing the elasticity of the shaft body 42.

Further, for example, the door open / close control system 10 further includes an electric lock system 50 that outputs a signal indicating the locked state of the door 80.

Such a door opening / closing control system 10 can be linked with the electric lock system 50.

Further, for example, when the control unit 32 determines that the door 80 has transitioned from the locked state to the unlocked state based on the signal output by the electric lock system 50 and acquired by the acquisition unit 31, braking is performed. Let the part release the fixing of the opening / closing position of the door.

Such a door opening / closing control system 10 can release the fixing of the opening / closing position of the door triggered by the unlocked state of the door 80.

Further, for example, the connecting member is an opening / closing arm 41 in which one end 41b is movably connected to the door frame 82 and the other end 41c is fixed to the shaft 42, and the shaft 42 is the door 80. It is held so as to rotate according to the opening and closing of the door 80. The door open / close control system 10 further includes a motor 43 for rotating the shaft body 42 and an open / close position sensor 46 for detecting the open / closed state of the door 80. When the control unit 32 determines that the door 80 remains open for a predetermined period or longer based on the signal output by the open / close position sensor 46, the control unit 32 closes the door 80 by controlling the motor 43, and further, electricity. Have the locking system 50 lock the door 80.

Such a door opening / closing control system 10 can lock the door 80 triggered by the automatic closing of the door 80.

Further, for example, the electric lock system 50 includes a biometric authentication unit 56 that acquires biometric authentication information of a user in order to lock and unlock the door 80.

Such a door opening / closing control system 10 can assist the user in unlocking the door 80 when the user is locked out of the building by automatically closing the door 80. ..

Further, for example, the door opening / closing control system 10 further includes a changeover switch 24 operated by the user to fix the opening / closing position of the door 80 by the braking unit and to switch the release of the fixing. The control unit 32 controls the braking unit based on the signal output by the changeover switch 24 and acquired by the acquisition unit 31.

Such a door opening / closing control system 10 can switch between fixing and releasing the opening / closing position of the door 80 based on the operation of the changeover switch 24.

(Other embodiments)
Although the embodiments have been described above, the present invention is not limited to the above embodiments.

For example, the operation examples 1 to 10 described in the above embodiment may be arbitrarily combined as long as the inconsistency does not occur.

Further, in the above embodiment, the door opening / closing control system is realized by a plurality of devices, but may be realized by a single device. For example, the door open / close control system may be realized as one device in which the control device and the door control device are integrated. When the door opening / closing control system is realized by a plurality of devices, the components included in the door opening / closing control system may be distributed to the plurality of devices in any way.

Further, in the above embodiment, another processing unit may execute the processing executed by the specific processing unit. Further, the order of the plurality of processes may be changed, or the plurality of processes may be executed in parallel.

Further, in the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

In addition, each component may be realized by hardware. For example, each component may be a circuit (or integrated circuit). These circuits may form one circuit as a whole, or may be separate circuits from each other. Further, each of these circuits may be a general-purpose circuit or a dedicated circuit.

In addition, general or specific embodiments of the present invention may be realized in recording media such as systems, devices, methods, integrated circuits, computer programs or computer-readable CD-ROMs. In addition, general or specific aspects of the present invention may be realized by any combination of systems, devices, methods, integrated circuits, computer programs and recording media.

For example, the present invention may be realized as a door opening / closing control method executed by a computer such as the door opening / closing control system of the above embodiment. Further, the present invention may be realized as a program for causing a computer to execute a door opening / closing control method. The present invention may be realized as a computer-readable non-temporary recording medium in which such a program is recorded.

In addition, it is realized by applying various modifications to each embodiment that can be conceived by those skilled in the art, or by arbitrarily combining the components and functions of each embodiment within the range not deviating from the gist of the present invention. Also included in the present invention.

10 Door open / close control system 21 Contact sensor 22 Human sensor 23 Load sensor 31 Acquisition unit 32 Control unit 33, 55 Storage unit 41 Open / close arm 41b One end 41c The other end 42 Shaft 42a First shaft 42b Second Shaft 43 Motor 45 Electromagnetic clutch 46 Open / close position sensor 50 Electric lock system 56 Biometric authentication unit 80 Door 81 Door handle 82 Door frame

Claims (19)

The acquisition unit that acquires the signal related to the opening and closing of the door,
A braking unit that fixes the opening / closing position of the door by braking the connecting member that connects the door and the door frame.
A door opening / closing control system including a control unit that controls the braking unit based on the signal acquired by the acquisition unit. The door opening / closing control system according to claim 1, wherein the control unit fixes the door to the braking unit at a position where the door is closed, based on the signal acquired by the acquisition unit. The door opening / closing control system according to claim 1 or 2, wherein the control unit fixes the door to the braking unit at a position where the door is opened, based on the signal acquired by the acquisition unit. Further, a contact sensor for detecting that the user touches the door handle of the door is provided.
The door opening / closing control system according to any one of claims 1 to 3, wherein the control unit controls the braking unit based on the signal output by the contact sensor and acquired by the acquisition unit. .. Further, a motion sensor for detecting the presence or absence of a person around the door is provided.
The door opening / closing control according to any one of claims 1 to 4, wherein the control unit controls the braking unit based on the signal output by the motion sensor and acquired by the acquisition unit. system. Further, a load sensor for detecting the load applied to the door is provided.
The door opening / closing control system according to any one of claims 1 to 5, wherein the control unit controls the braking unit based on the signal output by the load sensor and acquired by the acquisition unit. .. The connecting member is an opening / closing arm in which one end is movably connected to the door frame and the other end is fixed to a shaft body.
The shaft body is held by the door so as to rotate according to the opening and closing of the door.
The door opening / closing control system according to any one of claims 1 to 6, wherein the braking unit fixes the opening / closing position of the door by braking the rotation of the shaft body. Further, a motor for rotating the shaft body is provided.
The door opening / closing control system according to claim 7, wherein the control unit opens / closes the door by controlling the motor. Further, an open / close position sensor for detecting the open / closed state of the door is provided.
According to claim 8, when the control unit determines that the door remains open for a predetermined period or longer based on the signal output by the open / close position sensor, the door is closed by controlling the motor. The door open / close control system described. The door opening / closing control system according to claim 8 or 9, wherein the motor also functions as the braking unit by braking the rotation of the shaft body. The door opening / closing control system according to any one of claims 7 to 9, wherein the braking unit is an electromagnetic clutch that brakes the rotation of the shaft body. The door opening / closing control system according to any one of claims 8 to 10, wherein the shaft body is formed by elastically connecting a first shaft body and a second shaft body arranged in the axial direction. The door according to any one of claims 8 to 10, wherein the control unit rotates the shaft body by a predetermined amount in the direction in which the door opens by controlling the motor in a state where the door is closed. Open / close control system. The control unit
The shaft body is rotated in the direction in which the door closes until one of the first shaft body and the second shaft body moves with respect to the other to close the door, and the braking unit is controlled in this state. The door opening / closing control according to claim 12, wherein after fixing the position of the door, the fixing of the opening / closing position of the door is released by controlling the braking unit based on the signal acquired by the acquisition unit. system. The door opening / closing control system according to any one of claims 1 to 14, further comprising an electric locking system that outputs the signal indicating the locked state of the door. When the control unit determines that the door has transitioned from the locked state to the unlocked state based on the signal output by the electric lock system and acquired by the acquisition unit, the control unit applies to the braking unit. The door opening / closing control system according to claim 15, wherein the door opening / closing position is released from being fixed. The connecting member is an opening / closing arm in which one end is movably connected to the door frame and the other end is fixed to a shaft body.
The shaft body is held by the door so as to rotate according to the opening and closing of the door.
The door open / close control system further
A motor that rotates the shaft body and
It is equipped with an open / close position sensor that detects the open / closed state of the door.
The control unit
When it is determined that the door remains open for a predetermined period of time or longer based on the signal output by the open / close position sensor, the door is closed by controlling the motor, and the electric lock system is further fitted with the door. The door open / close control system according to claim 15 or 16, wherein the door is locked. The door opening / closing control system according to any one of claims 15 to 17, wherein the electric lock system includes a biometric authentication unit that acquires biometric authentication information of a user in order to lock and unlock the door. Further, the door is provided with a changeover switch operated by the user to switch between fixing the opening / closing position of the door by the braking unit and releasing the fixing.
The door opening / closing control system according to any one of claims 1 to 5, wherein the control unit controls the braking unit based on the signal output by the changeover switch and acquired by the acquisition unit. ..

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