KR102729586B1 - IoT-based smart door and smart door system - Google Patents

Abstract

The present invention relates to an IoT-based smart door, and the IoT-based smart door according to the present invention comprises: a door body; a motor installed inside the door body; a motor shaft connected to the motor; a control unit installed on one side of the motor and controlling the operation of the motor; and a locking unit installed on the front and rear of the door body; wherein the control unit comprises: a communication module capable of communicating with the locking unit; and a control module controlling the opening and closing of the door body by controlling the operation of the motor based on a signal transmitted by the communication module.

Description

IoT-based smart door and smart door system {IoT-based smart door and smart door system}

The present invention relates to an IoT-based smart door and a smart door system, and more specifically, to an IoT-based smart door and a smart door system that can be opened and closed without entering a key or password.

In general, most automatic doors are constructed by hanging the door on a wire or belt-type endless track belt and opening and closing it. However, this conventional structure is composed of pulleys installed on both sides of the belt and one pulley is connected to a reduction motor, so the structure is complex, there are many parts, and it takes up a lot of space, so it is not possible to construct an automatic door inexpensively.

In addition, such conventional technology has disadvantages such as being unsightly, taking up a lot of space, and having a separate solenoid and clutch means of a connecting link to separate the reduction motor and the driving gear during manual operation, making the configuration complex and difficult to manufacture, making it difficult to apply to automatic doors.

To solve these shortcomings, there is a technology known as Patent Publication No. 10-1728297 (Title: Automatic Door Opening/Closing Device) that applies an automatic door opening/closing device to a swing door. However, this technology has the problem that the motor is exposed to the outside, which is unsightly, the space in the room is not utilized well, and the guide rail is also exposed to the outside, which can easily deteriorate or be damaged by external stimuli or impacts.

To solve these problems, Patent Publication No. 10-2020-0006219 (Title of the invention: Automatic swing door) is disclosed. However, since the motor is installed in the ram part, not the door, there is a problem in that construction work is required in the ram part when installing the door.

In addition, the above conventional technologies have the problem of being inconvenient to use as they do not operate based on IoT.

KR 10-1728297 B1 (2017. 04. 13.) KR 10-2020-0006219 A (2020.01.20.)

The present invention is intended to solve the problems of the above-described prior art, and provides an IoT-based smart door and smart door system in which the motor and guide rail are not exposed to the outside, construction of the ram part is not required when installing the door, and the door operates based on IoT, thereby improving convenience in use.

In order to achieve the above-described purpose, the IoT-based smart door according to the present invention comprises: a door body; a motor installed inside the door body; a motor shaft connected to the motor; a control unit installed on one side of the motor and controlling the operation of the motor; and a locking unit installed on the front and rear of the door body; wherein the control unit comprises a communication module capable of communicating with the locking unit; and a control module controlling the opening and closing of the door body by controlling the operation of the motor based on a signal transmitted by the communication module. The technical features thereof include:

In addition, the IoT-based smart door according to the present invention may be configured to have a Bluetooth module built into the locking unit, and the Bluetooth module may be configured to receive a signal from a paired user terminal and transmit the received signal to the control module.

In addition, the IoT-based smart door according to the present invention may be configured such that the locking unit includes at least one human body detection sensor, and when the human body detection sensor detects a human body around the door body, a human body detection signal is generated and transmitted to the control module, and the control module controls the motor based on the human body detection signal to control the opening and closing of the door body.

In addition, the IoT-based smart door system according to the present invention includes a smart door, a server, and a user terminal, wherein the smart door includes a door body; a motor installed inside the door body; a motor shaft connected to the motor; a control unit installed on one side of the motor and controlling the operation of the motor; and a locking unit installed on the front and rear of the door body; wherein the control unit includes a communication module capable of communicating with the locking unit and the server; and a control module controlling the operation of the motor based on a signal transmitted by the communication module; wherein the server may be configured to receive an open/close signal from the user terminal, and the control unit may be configured to receive the open/close signal from the server and control the motor to open and close the door body.

In addition, the IoT-based smart door system according to the present invention may be configured such that a Bluetooth module is built into the locking unit, and the Bluetooth module, when paired with the user terminal, receives a signal from the user terminal and transmits the received signal to the control module.

The IoT-based smart door and smart door system according to the present invention have the effect of improving convenience in use as the motor and guide rail are not exposed to the outside, no construction is required on the ram part when installing the door, and the door operates based on IoT.

Figure 1 is a schematic diagram of an IoT-based smart door according to one embodiment of the present invention.
Figure 2 is a drawing showing a motor and a control unit according to one embodiment of the present invention.
Figure 3 is a schematic diagram of the control unit of an IoT-based smart door according to one embodiment of the present invention.
Figure 4 is a schematic diagram of the locking part of an IoT-based smart door according to one embodiment of the present invention.
Figure 5 is a schematic diagram of an IoT-based smart door system according to one embodiment of the present invention.

In describing the present invention below, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Since embodiments according to the concept of the present invention can have various changes and can take various forms, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that the present invention includes all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

When it is said that an element is "connected" or "connected" to another element, it should be understood that it may be directly connected or connected to that other element, but that there may be other elements in between. On the other hand, when it is said that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between elements, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", should be interpreted similarly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. It should be understood that, as used herein, the terms "comprises" or "has" and the like are intended to specify the presence of a described feature, number, step, operation, component, part, or combination thereof, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

FIG. 1 is a schematic configuration diagram of an IoT-based smart door according to one embodiment of the present invention. Referring to FIG. 1, a smart door according to one embodiment of the present invention may be configured to include a door body (100); a motor (200) installed inside the door body; a motor shaft (250) connected to the motor; a control unit (300) installed on one side of the motor and controlling the operation of the motor; and a locking unit (400) installed on the front and rear sides of the door body.

At this time, the control unit (300) may be configured to include a communication module (310) capable of communicating with the locking unit; a control module (320) that controls the opening and closing of the door body by controlling the operation of the motor based on a signal transmitted by the communication module.

In the present invention, a motor (200) is installed inside the door body (100), and as shown in Fig. 1, it can be installed on the upper part of the door body (100). The motor (200) installed on the upper part of the door body (100) in this way can be connected to a motor shaft (250).

It can be configured to include a motor shaft (250) driven by the above motor (200), a rotary bar (260) connected to the above motor shaft (250), and a roller (270) formed at one end of the rotary bar (260), and a guide rail formed to allow the roller (270) to slide can be installed on the door frame.

In the present invention, various types of motors can be applied to the motor (200). However, it is preferable to use a motor with a small size to be installed inside the door body (100).

For example, in the present invention, a motor (200) that operates on DC power may be used, and may be configured to have an encoder installed inside to detect the number of rotations of the motor. If an encoder is installed inside to detect the number of rotations, more accurate motor operation can be implemented.

An encoder can be used as a detector to accurately determine the rotational speed and rotational angle, including the rotational direction of a servo motor. An optical encoder, a magnetic encoder, etc. can be used as such an encoder. An optical encoder has the characteristics of a simple processing circuit, a large noise margin using digital signals, and easy high-resolution. In addition, a magnetic encoder has the characteristics of a simple processing circuit, a large noise margin using digital signals, and is relatively strong against vibration and shock and consumes less power compared to an optical encoder. In the present invention, an appropriate encoder may be selected depending on the situation among an optical encoder and a magnetic encoder and configured to be included in a motor (200).

Also, there are two main types of encoder detection methods: absolute and incremental. First, the absolute method has the characteristic of always maintaining the absolute position value regardless of the power status. This characteristic is possible by scanning the position code optically encoded in binary on the rotating disc, and therefore, even if the position movement occurs when the power is not supplied, the current position information can be confirmed immediately after the power is turned on.

And the incremental method is a method that calculates the rotation angle by optically counting the number of slots arranged at regular intervals on the circumference of the rotating disk, so it cannot measure the absolute position and can only measure the relative position from the starting point, and has the disadvantage of having to re-detect the initial position after power outage and recovery. However, it has the advantage of being able to configure an incremental encoder at low cost because the structure is relatively simple.

In addition, the motor (200) according to the present invention may be configured to further include a helical reducer, and noise generation can be minimized by the helical reducer.

The above control unit (300) is a component for controlling the operation of the motor (200), and in the present invention, the control unit (300) can be installed on one side of the motor (200).

In the present invention, the control unit (300) can be basically configured to include a communication module (310) and a control module (320). The control module (320) can control the opening and closing of the door body (100) by controlling the operation of the motor (200) based on a signal transmitted by the communication module (310).

The above locking part (400) is a component that is responsible for opening/closing (lock/unlock) the door body (100), and the locking part (400) can be opened or closed by the control part (300).

According to one embodiment of the present invention, a Bluetooth module (410) is built into the locking unit (400), and the Bluetooth module (410) can be configured to receive a signal from a paired user terminal and transmit the received signal to the control module (320).

In addition, at least one human body detection sensor (420) is installed in the locking unit (400), and when the human body detection sensor detects a human body around the door body (100), a human body detection signal can be generated and transmitted to the control module (320).

And the control module (320) can control the opening and closing of the door body (100) by controlling the motor (200) based on the human body detection signal, and can control the door body (100) to be stopped as needed.

For example, when the human body detection sensor (420) detects a human body while the door body (100) is open, the control module (320) can control the door body (100) to remain open based on the human body detection signal transmitted by the human body detection sensor (420), and when the door body (100) is being closed, the control module can control the door body (100) to be opened again or the door body (100) to be stopped.

The present invention can be configured as an IoT-based smart door system centered on the above-mentioned smart door.

An IoT-based smart door system according to one embodiment of the present invention may be configured to include a smart door (10), a server (20), and a user terminal (30).

First, a smart door (10) may be configured to include a door body (100); a motor (200) installed inside the door body (100); a motor shaft (250) connected to the motor (200); a control unit (300) installed on one side of the motor (200) and controlling the operation of the motor (200); and a locking unit (400) installed on the front and rear of the door body (100).

At this time, the control unit (300) may be configured to include a communication module (310) capable of communicating with the locking unit; a control module (320) that controls the opening and closing of the door body by controlling the operation of the motor based on a signal transmitted by the communication module.

In the present invention, a motor (200) is installed inside the door body (100), and as shown in Fig. 1, it can be installed on the upper part of the door body (100). The motor (200) installed on the upper part of the door body (100) in this way can be connected to a motor shaft (250).

A guide rail (not shown) on which the motor shaft (250) can move by driving the above motor (200) can be installed in the door frame.

And the server (20) can receive an opening/closing signal from the user terminal (30) and transmit the received opening/closing signal to the control unit (300). If the control unit (300) includes a control module (320), the opening/closing signal can be transmitted to the control module (320).

According to this configuration, even if there is a problem with the pairing between the user terminal (30) and the smart door (10), the smart door (10) can be opened and closed by the server (20), so that a door opening and closing service can be provided to the user more stably.

If the smart door (10) is configured to automatically open when the user terminal (30) approaches the smart door (10) simply by pairing between the smart door (10) and the user terminal (30) (for example, pairing via Bluetooth communication), a major problem occurs in which the smart door (10) does not open if a problem occurs in the pairing between the smart door (10) and the user terminal (30).

However, the present invention has the advantage of being able to open the smart door (10) by a system in which the smart door (10), the server (20), and the user terminal (30) are interconnected, and the server (20) additionally receives an opening/closing signal from the user terminal (30) and transmits the received opening/closing signal to the control module (320).

In this way, in the present invention, a smart door (10), a server (20), and a user terminal (30) can be interconnected and operate based on IoT, and various functions can be provided to the user through such IoT-based operation.

For example, the server (20) generates a virtual key and transmits it to the user terminal (30), and when the user terminal (30) approaches the locking unit (400) of the smart door (10) while the virtual key is stored in the user terminal (30), the locking unit (400) can be unlocked by the virtual key through wireless communication such as Bluetooth communication.

These virtual keys can be viewed as a type of smart key, and users can conveniently have the door automatically open when they approach the smart door (10) with the user terminal (30) they carry, without having to press a separate key or password.

In the present invention, since the motor (200) is installed inside the door body (100) and is not exposed to the outside, it is possible to prevent the motor (200) from being easily deteriorated or damaged by external stimuli or impact.

In the present invention, the degree of opening of the door body (100), that is, the operating range of the door body (100), can be stored in the control module (320).

Since the smart door according to the present invention is a door that is automatically opened and closed by the power of a motor (200) rather than a door that is opened by human power, it is desirable that the degree of opening of the door body (100), that is, the operating range of the door body (100), be set and stored within an appropriate range.

Initially, the degree of opening of the door body (100), i.e. the operating range of the door body (100), can be input and stored through the user terminal (30).

In the present invention, the operating range of the door body (100) can be determined by the total rotation amount of the motor (200).

Accordingly, the total rotation amount according to the operating range of the motor (200) is stored in the control module (320), and the motor (200) is driven by the control module (320) to rotate by the total rotation amount according to the operating range to open the door body (100).

In addition, since the smart door according to the present invention is a door that is automatically opened and closed by the power of a motor (200) rather than a door that is opened by human power, the time point at which the door body (100) is closed after opening, i.e. the time point at which the door body (100) begins to close, can be stored in the control module (320), and the control module (320) can automatically close the door body (100) based on the time point at which the door body (100) is closed after opening.

In the present invention, the closing time after opening of the door body (100) can be set in a timer manner so that closing begins automatically after a predetermined time.

For example, if a timer of 5 seconds is stored as the closing point after the opening of the door body (100), the door body (100) may rotate by the total rotation amount according to the above-mentioned operating range to count down 5 seconds after the door body (100) is opened, and when 5 seconds have passed, the door body (100) may begin to close.

In the present invention, when an impact is detected during the closing of the door body (100), the closing operation can be stopped and the door can be configured to stand by in a stopped state for a predetermined period of time.

At this time, impact detection of the door body (100) can be performed by the control module (320). For example, the motor (200) can be equipped with an encoder, and the encoder can detect the rotation speed of the motor (200) and transmit it to the control module (320). With this structure, the control module (320) can be controlled according to the rotation speed of the motor (200).

For example, if the RPM, which means the number of rotations per unit time of the motor (200), in the control module (320) decreases rapidly, it can be configured to detect an impact and stop the operation of the motor (200) from the moment of detection, thereby stopping the door body (100).

As a concrete example, a decrease in RPM of more than 1,000 over a period of 1 second would be detected as a shock.

That is, in the present invention, it is possible to detect that there is an impact if there is a decrease in RPM of a predetermined value or more for a predetermined period of time.

In addition, if necessary, the present invention additionally installs a resistance detection module that detects the resistance value of an encoder equipped in a motor (200), and if the resistance value detected by the resistance detection module is greater than a predetermined value, it can detect that there is an impact.

In addition, in the present invention, after impact detection, a stop and standby are performed, and it is preferable that the door body (100) be configured to close again after a predetermined standby time has elapsed.

This waiting time can be applied identically to the timer that is the closing point after the opening of the door body (100) that was initially set, and if necessary, a different time can be stored and applied as the dash time by input of the user terminal (30).

The technical idea of the present invention described above has been specifically described in the preferred embodiments, but it should be noted that the above-described embodiments are for the purpose of explanation and not for the purpose of limitation. In addition, those skilled in the art of the present invention will understand that various embodiments are possible within the scope of the technical idea of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the appended claims.

10: Smart Door
20: Server
30: User terminal
100: Door body
200: Motor
250: Motor shaft
260: Rotating bar
270: Roller
300: Control Unit
310: Communication module
320: Control module
400: Locking part
410: Bluetooth module
420: Human body detection sensor

Claims (5)

door body;
A motor installed inside the above door body;
A motor shaft connected to the above motor;
A control unit installed on one side of the above motor and controlling the operation of the above motor; and
Includes a locking part installed on the front and rear of the door body;
The above control unit
A communication module capable of communicating with the above locking unit;
A control module that controls the opening and closing of the door body by controlling the operation of the motor based on a signal transmitted by the communication module;
Including,
In the above locking part
At least one human detection sensor is included,
When the above human body detection sensor detects a human body around the door body, it generates a human body detection signal and transmits it to the control module.
The above control module controls the opening and closing of the door body by controlling the motor based on the human body detection signal.
The total rotation amount according to the operating range of the motor is stored in the above control module, and the motor is driven by the above control module to rotate by the total rotation amount according to the operating range to open the door body.
An IoT-based smart door characterized in that the control module detects an impact when the RPM, which means the number of rotations of the motor per unit time, decreases by a predetermined value or more for a predetermined period of time, and stops the operation of the motor from the moment of detection, thereby stopping the door body.
In the first paragraph,
A Bluetooth module is built into the above locking part,
An IoT-based smart door, characterized in that the Bluetooth module receives a signal from a paired user terminal and transmits the received signal to the control module.
delete In IoT-based smart door systems,
Includes smart door, server and user terminal,
The above smart door
door body;
A motor installed inside the above door body;
A motor shaft connected to the above motor;
A control unit installed on one side of the above motor and controlling the operation of the above motor; and
Includes a locking part installed on the front and rear of the door body;
The above control unit
The above locking unit, a communication module capable of communicating with the server;
It includes a control module that controls the operation of the motor based on a signal transmitted by the communication module;
The above server receives an opening/closing signal from the user terminal, and the control unit receives the opening/closing signal from the server and controls the motor to open/close the door body.
In the above locking part
At least one human detection sensor is included,
When the above human body detection sensor detects a human body around the door body, it generates a human body detection signal and transmits it to the control module.
The above control module controls the opening and closing of the door body by controlling the motor based on the human body detection signal.
The total rotation amount according to the operating range of the motor is stored in the above control module, and the motor is driven by the above control module to rotate by the total rotation amount according to the operating range to open the door body.
The above control module is an IoT-based smart door system characterized in that it detects an impact when the RPM, which means the number of rotations of the motor per unit time, decreases by a predetermined value or more for a predetermined period of time, and stops the operation of the motor from the moment of detection, thereby stopping the door body.
In paragraph 4,
A Bluetooth module is built into the above locking part,
An IoT-based smart door system, characterized in that the Bluetooth module, when paired with the user terminal, receives a signal from the user terminal and transmits the received signal to the control module.