JP7270231B2 - Door open/close control system - Google Patents

Description

The present invention relates to a door opening/closing control system.

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

Japanese Unexamined Patent Application Publication No. 2004-3293

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

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

A door opening/closing control system according to an aspect of the present invention can fix the opening/closing position of a door.

FIG. 1 is a block diagram showing the functional configuration of the door opening/closing control system according to the embodiment. FIG. 2 is a view of a door to which the door opening/closing control system according to the embodiment is applied, viewed from the inside of the room. FIG. 3 is a diagram showing the detailed structure (internal structure) of the door control device. FIG. 4 is a flowchart of operation example 1 of the door opening/closing control system according to the embodiment. FIG. 5 is a flowchart of operation example 2 of the door opening/closing control system according to the embodiment. FIG. 6 is a top view showing people on both sides of the door (inside and outside). FIG. 7 is a flowchart of operation example 3 of the door opening/closing control system according to the embodiment. FIG. 8 is a flowchart of operation example 4 of the door opening/closing control system according to the embodiment. FIG. 9 is a flowchart of operation example 5 of the door opening/closing control system according to the embodiment. FIG. 10 is a flowchart of operation example 6 of the door opening/closing control system according to the embodiment. FIG. 11 is a flowchart of 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 operation example 9 of the door opening/closing control system according to the embodiment. FIG. 14 is a flowchart of operation example 10 of the door opening/closing control system according to the embodiment. FIG. 15 is a diagram showing the 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 the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention. Further, among the constituent elements in the following embodiments, constituent elements not described in independent claims will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected with respect to substantially the same structure, and the overlapping description may be abbreviate|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 the functional configuration of the door opening/closing control system according to the embodiment. FIG. 2 is a view of a door to which the door opening/closing control system according to the embodiment is applied, viewed from the inside of the room.

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

[Contact sensor, motion sensor, load sensor]
First, the contact sensor 21, the human sensor 22, and the load sensor 23 will be described. The contact sensor 21 is a sensor that is provided on a door handle 81 of the door 80 and detects that the user touches the door handle 81 . Contact sensor 21 outputs a signal indicating the detection result of contact sensor 21 to control device 30 . This signal is an example of a signal relating to opening and closing of the door 80 . The contact sensor 21 is implemented by, for example, a capacitance sensor, but may be implemented by a pressure sensor or the like. A specific aspect 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 human 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 . Also, the human sensor 22 outputs a signal indicating the detection result of the human sensor 22 to the control device 30 . This signal is an example of a signal relating to opening and closing of the door 80 . The human sensor 22 is implemented by, for example, a pyroelectric sensor that responds to infrared rays emitted from the human body, but may be an ultrasonic human sensor. A specific aspect of the human sensor 22 is not particularly limited.

The load sensor 23 is provided on the interior side surface of the door 80 and detects the load applied to the door 80 from the interior side. Moreover, 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 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. A specific aspect of the load sensor 23 is not particularly limited.

[Switch]
The changeover switch 24 is a hardware switch operated by the user to switch between fixing and releasing the open/closed position of the door 80 . Moreover, the changeover switch 22 outputs a signal indicating that the changeover switch 22 is operated to the control device 30 each time the changeover switch 22 is operated. This signal is an example of a signal relating to 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 portions 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 switch 24 may be provided on each of the two door handles 81. .

[Control device]
Next, the control device 30 will be explained. The control device 30 performs opening/closing control of the door 80 and opening/closing position fixing control of the door 80 . The opening/closing position fixing control here is, in other words, hold control (holding control), and regardless of whether the door 80 is in the open state or the closed state, the opening/closing position (open/closed state) is maintained regardless of whether the door 80 is pressed by the user. It is a control that fixes (holds) the open/close position so that it does not move from the In the example of FIG. 2, the control device 30 is provided, for example, on the interior side surface of the door 80, but the installation position of the control device 30 is not particularly limited. In FIG. 2 , the control device 30 is illustrated as a separate device from the door control device 40 , but may be implemented as a device integrated with the door control device 40 . The control device 30 specifically includes an acquisition unit 31 , a control unit 32 , and a storage unit 33 .

Acquisition unit 31 acquires a signal relating to the opening/closing of door 80 . Specifically, the acquisition unit 31 acquires signals from the contact sensor 21 , the human sensor 22 , the load sensor 23 , the open/close position sensor 46 , and the electric lock system 50 . Specifically, the acquisition unit 31 is for the control device 30 to communicate with the contact sensor 21, the human sensor 22, the load sensor 23, the door control device 40 (opening/closing 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. A communication standard for communication performed by the acquisition unit 31 is not particularly limited.

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

The storage unit 33 is a storage device that stores control programs and the like executed by the control unit 32 . The storage unit 33 is implemented by, for example, a semiconductor memory.

[Door control device]
Next, the door control device 40 will be explained. The door control device 40 is a driving device for the control device 30 to perform opening/closing control of the door 80 and 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. As shown in FIG. The door control device 40 is provided, for example, on the surface of the door 80 on the interior side. It includes an opening/closing arm 41 , a shaft 42 , a motor 43 , a reduction gear 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 at an opening/closing portion 41a so as to be able to be opened and closed. One end 41 b of the opening/closing arm 41 is movably connected to the door frame 82 . The other end 41 c of the opening/closing arm 41 is fixed to the shaft 42 . The opening/closing arm 41 is made of, for example, a metal material.

The open/close arm 41 may be of a parallel type that is parallel to the door 80 when the door 80 is closed, or of a standard type that is perpendicular to the door 80 when the door 80 is closed. may be

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

The first shaft 42 a is fixed to the other end 41 c of the opening/closing arm 41 , and the second shaft 42 b is connected to the reduction gear 44 . Each of the first shaft 42a and the second shaft 42b is made 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 42 . The motor 43 is, for example, a DC motor. The motor 43 operates based on a control signal output from the control section 32 . A 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 using a gear and rotating the shaft 42 at the reduced speed. The speed reducer 44 may be omitted.

The electromagnetic clutch 45 brakes (stops) the rotation of the shaft 42 by 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 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 the coil 45b is not energized, and the pressing is released when the control unit 32 energizes the coil 45b. be. When the brake pad 45 d is pressed against the inner surface of the housing 47 , the frictional force generated between the brake pad 45 d and the inner surface of the housing 47 brakes (stops) the rotation of the shaft 42 .

In the electromagnetic clutch 45, when a current is applied to 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) that the magnetic body 45c receives from the coil 45b, and the coil The brake pad 45d may be configured to be released from being pressed against the inner surface of the housing 47 when no current is flowing through the brake pad 45b. The electromagnetic clutch 45 is turned on (fixing of the open/close position of the door 80 ) and off (release of fixation of the open/close position of the door 80 ) based on a control signal output from the controller 32 . The electromagnetic clutch 45 is not particularly limited as long as it can brake the open/close arm 41 using electric power.

It should be noted that the electromagnetic clutch 45 may brake the shaft 42 stepwise in three or more steps (for example, ON, intermediate, OFF). In other words, the electromagnetic clutch 45 may slow down the movement of the door 80 as well as fix and release the position of the door 80 .

The open/close position sensor 46 detects the open/close state of the door 80 . The open/close position sensor 46 also outputs a signal indicating the detection result of the open/close position sensor 46 (open/close state of the door) to the control device 30 . This signal is an example of a signal relating to opening and closing of the door 80 . The open/close position sensor 46 is, for example, a magnetic encoder. Specifically, the opening/closing position sensor 46 detects the position of the magnetic body 46b fixed to the first shaft 42a using a detection board 46a provided with a Hall element and fixed inside the housing 47a. By doing so, the rotation angle of the shaft 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 should be able to distinguish between at least the closed state of the door 80 and other states (the state in which the door 80 is opened at an arbitrary angle).

The housing 47 is provided on the inner surface of the door 80 and accommodates the shaft 42 , the motor 43 , the speed reducer 44 , the electromagnetic clutch 45 and the open/closed position sensor 46 . Further, the housing 47 rotatably holds the shaft 42 . According to the housing 47 , the shaft 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, for example, a rectangular parallelepiped shape and is made of a metal material or the like.

[Electric lock system]
Next, the electric lock system 50 will be explained. The electric lock system 50 is a system that locks and unlocks the door 80 using the electric lock 51 . Specifically, the electric lock 51 has a deadbolt, an electric motor, and a transmission mechanism that transmits the driving force of the electric motor to the deadbolt. The electric motor is driven in accordance with a drive signal output from the lock driving portion 53, and the deadbolt is moved to the locked position or the unlocked position by transmitting the driving force of the electric motor to the deadbolt via the transmission mechanism. .

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

The authentication unit 52 reads 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 implemented, for example, 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 (in this case, an unlock code, etc.) such as a numeric keypad. The authentication unit 52 is provided on the outdoor side of the door 80, for example, but may be provided on the indoor side of the door 80 as well.

The lock driving section 53 is a driving 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 . Note that the lock driving portion 53 may be included in the electric lock 51 .

The electric lock control section 54 controls the electric lock 51 based on the information acquired from the authentication section 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 registration information, the electric lock 51 (door 80) is locked and unlocked. The electric lock control unit 54 also outputs a signal indicating the locked state (locked or unlocked) of the electric lock 51 (the door 80 ) to the control device 30 . This signal is an example of a signal relating to opening and closing of the door 80 . The electric lock control unit 54 is implemented by, for example, a microcomputer, but may be implemented 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 registration information described above, and the like. The storage unit 55 is implemented by, for example, a semiconductor memory.

The biometric authentication unit 56 reads the user's biometric authentication information from the user and outputs the read biometric authentication information to the electric lock control unit 54 . The biometric authentication unit 56 is implemented by, for example, a camera module that reads a user's face image or a user's iris pattern, or a fingerprint sensor that reads a user's fingerprint. 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 opening/closing control system 10 can fix (hold) the position of the door 80 when the door 80 is closed. An operation example 1 of the door opening/closing control system 10 will be described below. FIG. 4 is a flowchart of 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/close state of the door 80 output by the open/close position sensor 46 of the door control device 40 (S11).

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

In this way, the door opening/closing control system 10 can achieve a function equivalent to a general door latch bolt without a latch bolt. That is, the door 80 without latch bolts can be realized. Further, since a mechanism for releasing the latch bolt is not necessary, 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 acquiring 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 indoor or outdoor door handle 81 (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. , to release the braking of the shaft 42 . 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 unlocked state of the door 80 continues, for example, until it is detected that the door 80 is closed next time.

Thus, when the user grips the door handle 81, the door opening/closing control system 10 unlocks the position of the door 80 using this as a trigger. As a result, the same function as a mechanism for releasing a general door latch bolt can be achieved.

[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). Operation example 2 of the door opening/closing control system 10 will be described below. FIG. 5 is a flow chart 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 receives the signal acquired by the acquisition unit 31. is monitored to determine whether or not the user is touching 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), it outputs a control signal to the electromagnetic clutch 45 of the door control device 40 to brake (stop) the shaft 42. . That is, the controller 32 causes the electromagnetic clutch 45 to fix the position of the door 80 (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 outputs a control signal to the electromagnetic clutch 45 of the door control device 40 to release the braking of the shaft 42. Let In other words, the controller 32 causes the electromagnetic clutch 45 to release the fixed position of the door 80 (S24).

In this way, the door opening/closing control system 10 moves the door 80 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 simply by releasing the door handle 81 at a desired open/close position. Since the door stopper is eliminated, the design of the door 80 can be easily improved.

When it is determined 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 causes the electromagnetic clutch 45 to fix the position of the door 80, and the door 80 is opened. When it is determined that the opening angle of the door 80 is equal to or greater than a predetermined angle, the fixed position of the door 80 may be released.

[Operation Example 3]
By the way, the door 80 is, for example, an entrance 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 referred to as user A) is located on the outdoor side of the door 80. user B) is present, there is a danger that the door 80 will hit the user B. FIG. 6 is a top view showing people on both sides (inside and outside) of the door 80. In FIG. 6, the position of the open door 80 is indicated by a dashed line.

The door opening/closing control system 10 can also fix the position of the door 80 in the situation described above. An operation example 3 of the door opening/closing control system 10 will be described below. FIG. 7 is a flowchart of operation example 3 of the door opening/closing control system 10 .

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

After that, based on the signal output by the contact sensor 21 provided on the indoor door handle 81 and acquired by the acquisition unit 31, the control unit 32 detects that the user A has touched the indoor door handle 81. (S33). In this case, the control unit 32 basically unlocks the position of the door. However, in operation example 3, the control unit 32 monitors the signal output by the human sensor 22 and acquired by the acquisition unit 31 to determine whether or not there is another user B outside 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 outputs a control signal to the electromagnetic clutch 45 of the door control device 40, thereby canceling the braking of the shaft 42. Let In other words, the controller 32 causes the electromagnetic clutch 45 to release the fixed position of the door (S35). On the other hand, when determining that there is another user B on the outdoor side of the door 80 (Yes in S34), the control unit 32 keeps the door 80 fixed.

In this way, the door opening/closing control system 10 is configured such that when the user A who is inside the room tries to open the door 80 and another user B is on the outside side of the door 80, the user A pushes the door handle 81. is not released from fixing the position of the door 80. This improves the safety when the door 80 is opened.

When determining that another user B is present outside the door 80 (Yes in S34), the control unit 32 fixes the position of the door 80 (for example, when the door 80 is closed). 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 open). In other words, the controller 32 may increase the force required to open the door 80 more than usual. As a result, the door 80 is prevented from being opened suddenly, so the safety when opening the door 80 is improved.

Further, in the operation example 3, the door opening/closing control system 10 uses the human sensor 22 to detect the user B on the outdoor side, but the load sensor 23 is provided on the outdoor side surface of the door 80. In such a case, user B can also be detected using load sensor 23 . The door opening/closing 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]
Also, in the situation shown in FIG. 6, when user B located on the outside of the room tries to open the door 80, another user A is leaning against the door 80 on the inside of the door 80. In such a case, there is a risk that user A will fall.

The door opening/closing control system 10 can also fix the position of the door 80 in the situation described above. An operation example 4 of the door opening/closing control system 10 will be described below. FIG. 8 is a flow chart of operation example 4 of the door opening/closing control system 10 .

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

Thereafter, based on the signal output by the contact sensor 21 provided on the door handle 81 on the outdoor side and acquired by the acquisition section 31, the control unit 32 detects that the user B has touched the door handle 81 on the outdoor side. (S43). In this case, the control unit 32 basically unlocks the position of the door. However, in 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 another user A is inside the door 80 or not. Determine (S44).

When the controller 32 determines that there is no other user A inside the door 80 (specifically, the user A is not leaning against the door 80) (No in S44), the electromagnetic clutch of the door controller 40 is By outputting a control signal to 45, braking of the shaft 42 is released. That is, the controller 32 causes the electromagnetic clutch 45 to release the position of the door (S45). On the other hand, when the controller 32 determines that another user A is inside 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.

In this way, the door opening/closing control system 10 is configured so that when the user B located on the outside of the room tries to open the door 80 and another user A is leaning against the inside of the door 80, the user B Even if the door handle 81 is gripped, the fixed position of the door 80 is not released. This improves the safety when the door 80 is opened.

When determining that another user A is leaning against the door 80 (Yes in S44), the control unit 32 fixes the position of the door 80 (for example, when the door 80 is closed). The electromagnetic clutch 45 may be operated with a force weaker than when the position of the door 80 is released (for example, when the door 80 is open). In other words, the controller 32 may increase the force required to open the door 80 more than usual. As a result, the door 80 is prevented from being opened suddenly, so the safety when opening the door 80 is improved.

Further, in the operation example 4, the door opening/closing control system 10 uses the load sensor 23 to detect the user A on the indoor side, but the human 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. The door opening/closing control system 10 can also detect the user A by the contact sensor 21 provided on the door handle 81 on the interior 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 flow chart of an operation example 5 of such a door opening/closing control system 10. As shown in FIG.

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

When the controller 32 determines that a predetermined period of time has passed since the door 80 transitioned from the closed state to the open state (Yes in S52), the controller 32 outputs a control signal to the motor 43 to rotate the mover of the motor 43. By doing so, the door 80 is closed (S53). Otherwise (No in S52), the closing of the door 80 using the motor 43 is not performed.

In this manner, 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 opening/closing control system 10 controls the motor to open the door 80. close. As a result, the occurrence of forgetting to close the door 80 can be suppressed.

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

The control unit 32 closes the door 80 by rotating the motor 43 until the shaft body 42 is twisted against the elasticity of the elastic member 42c. It can be tightly attached to a packing (not shown). That is, the airtightness of the building provided with the door 80 can be improved. In this case, how much to rotate the motor 43 is determined experimentally, for example, considering the elasticity of the elastic member 42c.

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

The processing of steps S61 to S66 is the same as the processing of steps S11 to S16 in the first operation example. After step S16, the controller 32 controls the motor 43 to rotate the shaft 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 to the extent that the door 80 is slightly opened (to the extent that the door 80 and the packing are separated from each other), or may rotate the shaft body 42 until the door is opened to some extent. Body 42 may be rotated. How much to rotate the motor 43 is determined empirically or experimentally, for example.

Thus, the door opening/closing 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 using the twist of the shaft body 42 described in the fifth operation example. FIG. 11 is a flow chart of operation example 7 of such a door opening/closing control system 10 .

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

After that, the control unit 32 is output by the contact sensor 21 provided on the door handle 81 on the indoor side or the outdoor side, and is 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 is caused to release the fixed position of the door 80 (S75). Then, since the door 80 is fixed while the shaft 42 is twisted against its elasticity in step S73, the door 80 is slightly opened by the force of the shaft 42 trying to return. For example, when the door 80 and the packing are in close contact, the close contact between the door 80 and the packing is broken.

In this manner, the door opening/closing control system 10 rotates the shaft 42 in the direction in which the door 80 closes until one of the first shaft 42a and the second shaft 42b moves (twists) relative to the other, thereby opening 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 fixed 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 using 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 it in conjunction with the electric lock system 50 . The door opening/closing control system 10 can unlock the opening/closing position of the door 80 using, for example, the unlocking of the door 80 as a trigger. FIG. 12 is a flow chart of an operation example 8 of such a door opening/closing control system 10. As shown in FIG.

The control unit 32 of the control device 30 determines that the door 80 is closed based on the signal indicating the open/close position of the door 80 output by the open/close position sensor 46 of the door control device 40 and acquired by the acquisition unit 31. If so (S81), the position of the door is fixed by 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 45 to release the fixed position of the door 80 (S85).

In this way, the door opening/closing control system 10 unlocks the opening/closing position of the door 80 using, for example, the unlocking of the door 80 as a trigger. The user can release the fixed position of the door 80 simply by performing an operation for unlocking the electric lock 51 . In other words, the door opening/closing control system 10 can improve user convenience.

[Operation Example 9]
The door opening/closing control system 10 can also automatically lock the door 80 when the door 80 is closed. FIG. 13 is a flow chart of operation example 9 of the door opening/closing control system 10 as described above.

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

When the controller 32 determines that a predetermined period of time has passed since the door 80 transitioned from the closed state to the open state (Yes in S92), the controller 32 outputs a control signal to the motor 43 to rotate the mover of the motor 43. By doing so, the door 80 is closed (S93). Otherwise (No in S92), the closing and locking of the door 80 using the motor 43 are not performed.

After step S93, the controller 32 further causes the electric lock system 50 to lock the door 80 (electric lock 51) (S94). The control unit 32 causes the electric lock system 50 to lock the door 80 (the 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 open/close position of the door 80 output by the open/close position sensor 46 of the door control device 40 to the electric lock control unit 54, and the electric lock control unit 54 receives the transferred signal. The electric lock 51 may be caused to lock the door 80 when it is determined that the door 80 is closed based on the above.

Thus, when the door opening/closing control system 10 determines that the door 80 remains open for a predetermined period of time or longer, the door opening/closing control system 10 controls the motor 43 to close the door 80, and the electric lock system 50 locks the door 80. lock it. As a result, the occurrence of forgetting to lock the door 80 can be suppressed.

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 accidentally be locked out of the building in which 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 undergoing biometric authentication.

[Operation example 10]
In the door opening/closing control system 10 , fixing and releasing of the opening/closing position of the door 80 may be performed based on the operation of the selector switch 24 . FIG. 14 is a flow chart of an operation example 10 of such a door opening/closing control system 10. As shown in FIG.

The acquisition unit 31 of the control device 30 acquires a signal output from the switch 24 (S101). Based on the signal acquired by the acquisition unit 31, 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 (S102). For example, the control unit 32 switches between fixation and release of the opening/closing position of the door 80 each time the changeover switch 24 is operated.

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

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

Further, in the door control device 40, the electromagnetic clutch 45 is an example of a braking section. The door control device 40 may be provided with a braking section other than the electromagnetic clutch 45 instead of the electromagnetic clutch 45 . For example, the control unit 32 may perform short brake control (pole short-circuit control) on the motor 43 so that the motor 43 functions as a braking unit. FIG. 15 is a diagram showing the 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. As shown in FIG.

Further, in the door control device 40 , the opening/closing arm 41 is used as the connecting member that connects 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 controls the opening/closing position of the door 80 by braking the acquisition unit 31 that acquires a signal relating to the opening/closing of the door 80 and the connecting member that connects the door 80 and the door frame 82 . and a control unit 32 that controls the braking unit based on the signal acquired by the acquisition unit 31 .

Such a door opening/closing control system 10 can fix the opening/closing position of the door 80 by braking the connecting member.

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

Such a door opening/closing control system 10 can fix the door 80 at the closed position by braking the connecting member.

Based on the signal acquired by the acquisition unit 31, the control unit 32 causes the braking unit to fix the door 80 at the position where the door 80 is opened.

Such a door opening/closing control system 10 can fix the door 80 at the open position by braking the connecting member.

Further, for example, the door opening/closing 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 section 32 controls the braking section based on the signal output by the contact sensor 21 and acquired by the acquisition section 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 opening/closing control system 10 further includes a human sensor 22 that detects the presence or absence of a person around the door 80 . The control unit 32 controls the braking unit based on the signal output by the human 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 human sensor 22 .

Further, for example, the door opening/closing control system 10 further includes a load sensor that detects the load applied to the door 80 . The control section 32 controls the braking section based on the signal output by the load sensor 23 and acquired by the acquisition section 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 the opening/closing arm 41 having one end 41b movably connected to the door frame 82 and the other end 41c fixed to the shaft 42 . The shaft 42 is held by the door 80 so as to rotate according to the opening and closing of the door 80 . The braking portion fixes the opening/closing position of the door 80 by braking the rotation of the shaft 42 .

Such a door opening/closing control system 10 can fix the opening/closing position of the door 80 by braking the opening/closing arm 41 .

Further, for example, the door opening/closing control system 10 further includes a motor 43 that rotates the shaft 42 . The controller 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 opening/closing control system 10 further includes an opening/closing position sensor 46 that detects the opening/closing 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 from the open/close position sensor 46 , the control unit 32 controls the motor 43 to close the door 80 .

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

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

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

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

Such a door opening/closing control system 10 can fix the opening/closing position of the door 80 by the electromagnetic clutch 45 .

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

Such a door opening/closing control system 10 can use the elasticity of the shaft 42 to perform control to bring the door 80 into close contact with packing or the like provided on the door frame 82 .

Further, for example, when the door 80 is closed, the control unit 32 rotates the shaft 42 by a predetermined amount in the direction in which the door 80 opens by controlling the motor 43 .

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

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

Such a door opening/closing control system 10 can use the elasticity of the shaft 42 to assist the user in opening the door 80 .

Further, for example, the door opening/closing 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 interlocked with an 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, the braking have the department release the fixation of the open/closed position of the door.

Such a door opening/closing control system 10 can release the fixation of the opening/closing position of the door using the fact that the door 80 is unlocked as a trigger.

Further, for example, the connecting member is an open/close arm 41 having one end 41b movably connected to the door frame 82 and the other end 41c fixed to the shaft 42. The shaft 42 is connected to the door 80. Also, it is held so as to rotate according to the opening and closing of the door 80 . The door opening/closing control system 10 further includes a motor 43 that rotates the shaft 42 and an opening/closing position sensor 46 that detects the opening/closing 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, The lock system 50 is caused to lock the door 80 .

Such a door opening/closing control system 10 can lock the door 80 using the automatic closing of the door 80 as a trigger.

Further, for example, the electric lock system 50 includes a biometric authentication unit 56 that acquires biometric authentication information of the 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 a user to switch between fixing and releasing the fixing of the open/closed position of the door 80 by the braking portion. 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 unlocking of the open/close position of the door 80 based on the operation of the selector switch 24 .

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

For example, operation examples 1 to 10 described in the above embodiments may be combined arbitrarily within a range that does not cause mismatch.

Also, in the above embodiments, the door opening/closing control system is implemented by a plurality of devices, but may be implemented by a single device. For example, the door opening/closing control system may be realized as one device that integrates the control device and the door control device. When the door opening/closing control system is implemented by a plurality of devices, the components provided in the door opening/closing control system may be distributed among the plurality of devices in any way.

Further, in the above-described embodiments, the processing executed by a specific processing unit may be executed by another processing unit. In addition, the order of multiple processes may be changed, and multiple processes may be executed in parallel.

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

Also, 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. These circuits may be general-purpose circuits or dedicated circuits.

Also, general or specific aspects of the present invention may be implemented in a system, apparatus, method, integrated circuit, computer program or recording medium such as a computer-readable CD-ROM. Also, general or specific aspects of the present invention may be implemented in any combination of systems, devices, methods, integrated circuits, computer programs and recording media.

For example, the present invention may be implemented 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 implemented as a program for causing a computer to execute the door opening/closing control method. The present invention may be implemented as a computer-readable non-temporary recording medium on which such a program is recorded.

In addition, forms obtained by applying various modifications to each embodiment that a person skilled in the art can think of, or realized by arbitrarily combining the constituent elements and functions of each embodiment without departing from the spirit of the present invention. Also included in the present invention.

REFERENCE SIGNS LIST 10 Door opening/closing control system 21 Contact sensor 22 Human sensor 23 Load sensor 31 Acquisition unit 32 Control unit 33, 55 Storage unit 41 Opening/closing arm 41b One end 41c The other end 42 Shaft 42a First shaft 42b Second Shaft 43 Motor 45 Electromagnetic Clutch 46 Open/Closed Position Sensor 50 Electric Lock System 56 Biometric Authentication Part 80 Door 81 Door Handle 82 Door Frame

Claims (18)

an acquisition unit that acquires a signal related to the opening and closing of the door;
a braking unit that fixes an open/closed position of the door by braking a connecting member that connects the door and the door frame;
a control unit that controls the braking unit based on the signal acquired by the acquisition unit ;
a motor and
The connecting member is an opening/closing arm having one end movably connected to the door frame and the other end fixed to a shaft,
The shaft body is configured by elastically connecting a first shaft body and a second shaft body arranged in an axial direction, and is held by the door so as to rotate according to opening and closing of the door,
The motor is controlled to rotate the shaft and open and close the door.
Door open/close control system. Furthermore, a contact sensor is provided to detect that the user has touched the door handle of the door,
The door opening/closing control system according to claim 1 , wherein the control section controls the braking section based on the signal output by the contact sensor and acquired by the acquisition section. Furthermore, a human sensor is provided to detect the presence or absence of a person around the door,
The door opening/closing control system according to claim 1 or 2, wherein the control section controls the braking section based on the signal output by the human sensor and acquired by the acquisition section. Further comprising a load sensor for detecting a load applied to the door,
The door opening/closing control system according to any one of claims 1 to 3 , wherein the control section controls the braking section based on the signal output by the load sensor and acquired by the acquisition section. . Further comprising an open/close position sensor for detecting the open/closed state of the door,
1. The control unit closes the door by controlling the motor when determining that the door remains open for a predetermined period or longer based on the signal output from the open/close position sensor. 5. The door opening/closing control system according to any one of 4 . 6. The door opening/closing control according to any one of claims 1 to 5, wherein the control unit causes the braking unit to fix the door at the closed position based on the signal acquired by the acquisition unit. system. The door opening/closing control according to any one of claims 1 to 6, wherein the control unit causes the braking unit to fix the door at an open position based on the signal acquired by the acquisition unit. system. The door according to any one of claims 1 to 7 , wherein the control unit rotates the shaft by a predetermined amount in a direction in which the door opens by controlling the motor when the door is closed. Opening and closing control system. The control unit
The door is closed by rotating the shaft in the door closing direction until one of the first shaft and the second shaft moves with respect to the other, and in this state, the braking unit is controlled. after fixing the position of the door by means of the above-described method, the fixing of the open /closed position of the door is released by controlling the braking unit based on the signal acquired by the acquiring unit. A door opening and closing control system according to paragraph 1 . The door opening/closing control system according to any one of claims 1 to 9, wherein the motor also functions as the braking section by braking rotation of the shaft. The door opening/closing control system according to any one of claims 1 to 9, wherein the braking portion is an electromagnetic clutch that brakes rotation of the shaft. The door opening/closing control system according to any one of claims 1 to 11 , further comprising an electric lock system that outputs the signal indicating the locked state of the door. When the controller 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 brake unit 13. The door opening/closing control system according to claim 12 , wherein the fixing of the opening/closing position of the door is released. The door opening/closing control system further comprises an opening/closing position sensor that detects the opening/closing state of the door,
The control unit
When it is determined based on the signal output by the open/close position sensor that the door remains open for a predetermined period of time or more, the door is closed by controlling the motor, and the electric lock system is activated. 14. The door opening/closing control system according to claim 12 or 13 , wherein the door is locked. The door opening/closing control system according to any one of claims 12 to 14 , 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. Furthermore, a changeover switch operated by a user for switching between fixation of the open/closed position of the door by the braking unit and release of the fixation is provided,
The door opening/closing control system according to any one of claims 1 to 15 , wherein the control section controls the braking section based on the signal output by the changeover switch and acquired by the acquisition section. . an acquisition unit that acquires a signal related to the opening and closing of the door;
a braking unit that fixes an open/closed position of the door by braking a connecting member that connects the door and the door frame;
a control unit that controls the braking unit based on the signal acquired by the acquisition unit ;
The connecting member is an opening/closing arm having one end movably connected to the door frame and the other end fixed to a shaft,
the shaft is held by the door so as to rotate according to opening and closing of the door;
The braking portion is an electromagnetic clutch, and fixes the opening/closing position of the door by braking the rotation of the shaft.
Door open/close control system. an acquisition unit that acquires a signal related to the opening and closing of the door;
a braking unit that fixes an open/closed position of the door by braking a connecting member that connects the door and the door frame;
a control unit that controls the braking unit based on the signal acquired by the acquisition unit ;
a motor and
The connecting member is an opening/closing arm having one end movably connected to the door frame and the other end fixed to a shaft,
the shaft is held by the door so as to rotate according to opening and closing of the door;
the motor is controlled to rotate the shaft to open and close the door;
The braking portion fixes the opening/closing position of the door by braking the rotation of the shaft,
When the door is closed, the control unit controls the motor to rotate the shaft by a predetermined amount in a direction in which the door opens.
Door open/close control system.

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