KR20140086458A - A laundry and a controlling method of a laundry - Google Patents

Abstract

A laundry machine according to an embodiment of the present invention comprises a case which forms an exterior of the laundry machine; a plurality of buttons which are arranged in front of the case and include optical sources for displaying ring-shaped optical patterns; an object sensor which senses a motion of an object within a preset set distance; a door which is arranged on one region of a border and includes an optical source displaying an optical pattern; and a control unit which controls the buttons and the door to display preset patterns, when the object sensor senses a motion of an object. According to the present invention, user convenience is provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing machine,

The present invention relates to a washing machine and a washing machine control method of an embodiment.

Generally, a laundry processing apparatus includes a washing machine, a dryer, a washing machine combined with a drying machine, and the like.

The washing machine is a device that performs processes such as washing, rinsing, turbid water, etc. to remove contaminants from laundry, clothes, bedding, etc. by using water, detergent and mechanical action. Such a washing machine is divided into a top loading type in which a drum containing laundry is rotated around a vertical axis and a front loading type in which the drum is rotated around a horizontal axis.

The dryer is a device for drying by applying warm air to the material to be dried. The material to be dried is put into a rotating drum and dried by applying warm air or cold air into the drum.

A drying and washing machine having both a washing function and a drying function is a device for putting laundry such as clothing into a rotating drum and performing washing or drying by selecting a desired function.

In recent years, there has been a growing interest in intuitively knowing how to use the washing machine. [0003] When the user approaches the washing machine, various methods for indicating that the operation is possible are being developed.

One embodiment of the present invention can provide a washing machine and a washing machine control method for notifying the user of availability when the user approaches the washing machine.

According to another aspect of the present invention, there is provided a washing machine comprising: a case defining an outer appearance; A plurality of buttons disposed in front of the case and including a light source for displaying a ring-shaped light pattern; An object detection sensor for detecting movement of an object within a predetermined set distance; A door disposed in one region of the rim and including a light source for displaying a light pattern; And a controller for causing the plurality of buttons and the door to display a predetermined pattern when the object detecting sensor detects the movement of the object.

According to another aspect of the present invention, there is provided a washing machine including a washing machine, Displaying a ring-shaped light pattern on a plurality of buttons and doors when the movement of the object is sensed; Determining a current position; Receiving weather information of the current location; And displaying weather information.

The method of operating the washing machine and the washing machine according to an embodiment of the present invention can provide a user with a sense of beauty by providing a light source on a plurality of buttons and doors and displaying various light patterns when the user approaches.

The operation method of the washing machine and the washing machine according to an embodiment of the present invention can minimize the damage of the laundry by recommending the operation mode when the user approaches.

In the washing machine and the washing machine operating method of the embodiment of the present invention, when there is no input for a predetermined time, it may indicate that the operation is stopped by displaying a specific pattern.

In the washing machine and the washing machine operating method according to an embodiment of the present invention, when the user approaches the button, the button displays the light pattern so that the user intuitively recognizes which button should be pressed.

The washing machine and the washing machine operating method of the embodiment of the present invention can help the user to select the operating mode by outputting the weather of the area where the washing machine is installed.

1 is a perspective view showing a structure of a washing machine according to an embodiment of the present invention,
2 is a block diagram showing components of a washing machine according to an embodiment of the present invention.
3 to 8 are views showing a control state of the washing machine according to an embodiment of the present invention,
9 is a flowchart showing a washing machine control method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terms first, second, etc. may be used to describe various elements, but such elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present invention, the first contact may be referred to as a second contact, and likewise, the second contact may be referred to as a first contact, It is all contact, but not the same contact.

The terms used in the description of the invention are intended to be illustrative only of specific embodiments and are not intended to limit the invention. As used in the description of the invention and the appended claims, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. The use of an indication may denote either or both of the singular and plural forms of the term and vice versa.

It will be understood that the term "and / or" refers to and encompasses any and all possible combinations of one or more of the listed related items. The terms "comprises" and / or "comprising" when used in this specification specify the presence of stated features, integers, steps, operations, elements and / or components, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

The term " if, "as used herein refers to the term" when "or" upon ", or" in response to determining "or" Quot; and "to " Similarly, the phrase " when determined "or" when an " specified condition or event is detected " Quot; or "in response to detecting [the specified condition or event]. &Quot;

In the following, embodiments of computing devices, user interfaces for such devices, and related processes for utilizing such devices may be described.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In describing an embodiment of the present invention, a laundry machine is exemplified as a washing machine, but the present invention is not limited to this, and other laundry processing machines such as a washing machine having a steam jetting function, And may be applied or deducted within the scope of this Agreement.

1 is a perspective view showing a structure of a washing machine according to an embodiment of the present invention.

Referring to FIG. 1, a washing machine 1 according to an embodiment of the present invention may include a case forming an outer appearance, and a drum rotatably installed in the case to receive clothes such as clothes. A lifter is provided on the inner circumferential surface of the drum so that the clothes can be lifted and dropped as the drum is rotated.

The case may form a garment inlet opening to allow the pouch to be placed on the drum in front. On the upper side of the front face of the case, it may be disposed on a display 130 that displays control information of the washing machine. The display 130 may include, but is not limited to, a light source such as an LCD or an LED that displays control information of the washing machine.

The case forming the appearance of the washing machine 1 can recognize an external touch. The case can sense an external touch, and when a touch is sensed, it can be signaled and transmitted to the control unit.

A door 110 may be provided at the garment inlet. The door 110 can open and close the garment input port, which is an entrance for inserting the pod into the drum. The door 110 may be operated manually by a user or by electronic control. The door 110 may be rotatably connected to the case.

The door 110 may emit a rim. At least one light source may be disposed on the rim of the door 110. The door 110 may be formed in a circular shape. The door 110 may divide the center of the circular rim horizontally and separate the upper and lower ends thereof to emit light, but the present invention is not limited thereto. The light source may be an LED (Light Emitting Diode), but is not limited thereto.

Outputs 130 and 162 may be disposed in front of the case. The output units 130 and 162 may include a display 130 for visually outputting various information and a speaker 162 for outputting various kinds of information audibly.

The display 130 and the speaker 162 may display various kinds of information. The display 130 and the speaker 162 may display an operation mode, an operation time, or weather information, but are not limited thereto.

The washing machine 1 may include a plurality of buttons 120. The plurality of buttons 120 may include a mechanical button or a touch pad to recognize a user's touch, but the present invention is not limited thereto. The plurality of buttons 120 may be disposed in front of the case. The plurality of buttons may be disposed at the top of the door 110.

The plurality of buttons 120 may emit light including a light source. The plurality of buttons 120 may be a light pattern that emits light in a specific shape. The plurality of buttons 120 may display a plurality of light patterns, but the present invention is not limited thereto.

For example, the plurality of buttons 120 can display a ring-shaped light pattern. The plurality of buttons 120 can divide the ring-shaped light pattern into upper and lower portions, and separately emit the upper portion and the lower portion. The plurality of buttons 120 can display a light pattern of an upper semicircular pattern and a light pattern of a lower semicircular pattern.

An object detection sensor 140 may be disposed in front of the case. The object detection sensor 140 can determine whether an object is approaching the washing machine or moving an object. The object detection sensor 140 can determine the distance to the object. For example, the object detection sensor 140 may be a laser sensor, an ultrasonic sensor, an infrared sensor, or the like, but is not limited thereto.

The object detection sensor 140 may have a semicircular detection range. The radius of the semicircle may be about 30 centimeters, but there may be a wide variety of embodiments.

The plurality of buttons 120 and the door 110 can display a light pattern at the same time. When the plurality of buttons 120 and the door 110 display light patterns at the same time, the light patterns of the plurality of buttons 120 and the door 110 may have various display forms such as a smiling face shape and a crying face shape .

2 is a block diagram showing components of a washing machine according to an embodiment of the present invention.

The control unit 210 may control the operation of the washing machine. The control unit 210 can exchange control signals with other components of the washing machine. The control unit 210 can transmit signals to other components and control them.

When the sensing unit 230 senses the movement of the object, the control unit 210 may cause the plurality of buttons and the door to display a predetermined pattern.

The memory 220 may include a high speed random access memory. The memory 220 may also include non-volatile memory, such as, but not limited to, one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state memory devices.

For example, the memory 220 may include, but is not limited to, Electronically Erasable and Programmable Read Only Memory (EEP-ROM). During the operation of the control unit 210, the control unit 210 can write and erase information in the EEP-ROM. The EEP-ROM may be a storage device in which information stored in the EEP-ROM is held without being erased even when the power supply of the washing machine is turned off and the power supply is stopped.

The washing machine may include a sensing unit 230 that can sense motion of an object in the vicinity. The sensing unit 230 may sense the movement of an object within a predetermined range in front of the washing machine. The sensing unit 230 may include a sensor capable of determining whether an object is approaching. For example, the sensing unit 230 may include an object sensor including at least one of an ultrasonic sensor, a laser sensor, and an infrared sensor.

In another embodiment, the sensing unit 230 may include a touch sensor for sensing whether a case forming an appearance of the washing machine is touched. The sensing unit 230 can determine whether or not the washing machine is touched. The touch sensor may be an acceleration sensor for detecting vibration or a sensor for sensing touch by sensing static electricity or a pressure sensor for sensing pressure, but the type is not limited thereto.

In another embodiment, the sensing unit 230 may include a camera. The camera can continuously photograph a certain range around the washing machine. The sensing unit 230 may transmit the image taken by the camera to the control unit 210. The control unit 210 may analyze the image and indicate that the operation can be performed by at least one of the output unit 260, the door 240, and the plurality of buttons 250 when it is determined that the user's eyes are facing the washing machine .

In another embodiment, the sensing unit 230 may be a plurality of sensors. The sensing unit 230 may include a plurality of ultrasound sensors, an infrared sensor, a laser sensor, a vibration sensor, a touch sensor, or a camera, but is not limited thereto.

The door 240 can open and close the inlet of the drum into which the pod is placed. The door 240 may be formed in various shapes. The door 240 may include a light source that displays at least one light pattern disposed on the outer rim. The door 240 may be formed in various shapes. For example, the door 240 may be formed in various shapes such as a square shape or a circular shape, but is not limited thereto. The light source may be an LED (Light Emitting Diode), but is not limited thereto.

The door 240 can display a light pattern by separating the upper and lower portions with respect to the center of the rim. The light pattern can be displayed by a light source provided on the door 240.

The door 240 may include at least two light sources, and the two light sources may be disposed one on top of / below the rim of the door 240, respectively. The door 240 may include a light guiding member for guiding the light generated from the light source to emit uniform light as a whole of the light source, but the present invention is not limited thereto.

The door 240 can display a ring-shaped light pattern. The door 240 can display a light pattern by separating the upper and lower portions of the rim. For example, the door 240 may display a light pattern of a semicircular shape on the upper and lower sides of the rim, respectively.

The button 250 may be a plurality of buttons. The plurality of buttons 250 may include directing the operation or operation of the washing machine, or controlling the degree of various operations.

The button 250 may display a light pattern. The button 250 may include at least one light source. The button 250 can display a ring-shaped light pattern.

The plurality of buttons 250 can display a light pattern by separating the upper and lower sides with respect to the center of the frame. The light pattern can be displayed by a light source provided on the plurality of buttons 250. [

In one embodiment, the button 250 may include at least two light sources, and the two light sources may be disposed one above the other or below the rim of the button 250, respectively. The button 250 may include a light guiding member for guiding the light generated from the light source to emit uniform light as a whole of the light source, but the present invention is not limited thereto.

The plurality of buttons 250 can display a ring-shaped light pattern. The button 250 can display a light pattern by separating the upper and lower portions of the frame. For example, the button 250 may display a light pattern of a semicircular shape on the top and bottom of the rim, respectively.

The output unit 250 can display various information of the washing machine. The output unit 250 may include a display 264 that visually displays the information of the washing machine and a speaker 262 that audibly displays the information of the washing machine, have.

The communication unit 270 can transmit and receive signals to / from the control unit 210. [ The communication unit 270 can receive various information from the external server. For example, the communication unit 270 can receive weather information from an external server and transmit it to the control unit.

The position detection sensor 280 can grasp the current position of the washing machine. For example, the location sensor 280 may include a Global Position System (GPS) module. The position sensing sensor 280 can communicate with a plurality of GPS satellites to determine the current position of the washing machine.

3 to 8 are views showing a control state of the washing machine according to an embodiment of the present invention.

Referring to FIG. 3, the plurality of buttons 120 and the door 110 may display a light pattern. The plurality of buttons 120 may be two. Each of the two buttons 120 may be disposed at the upper end of the front face of the case forming the outer appearance of the washing machine. One of the two buttons 120 may be disposed at the upper left of the case and the other at the upper right of the case.

The two buttons 120 can divide the upper and lower portions to display a light pattern of a semicircular shape. Although the embodiment shown in FIG. 3 is shown as a smiling face shape, the washing machine can change the light pattern of the door 110 and the two buttons 120 to display a crying face shape.

Each of the two buttons 120 may be an operation start button or an end button. The two buttons 120 may display a light pattern when a person approaches the washing machine, so that the user intuitively grasps a button to be touched for starting operation.

Referring to FIG. 4, the washing machine 1 may include an object detection sensor 140 disposed in front of a case forming an outer appearance.

The object detection sensor 140 can monitor the periphery of the washing machine 1. The object detection sensor 140 can monitor whether or not an object moves within a predetermined set distance L from the washing machine 1. For example, the set distance L may be 30 centimeters, but is not limited thereto.

The set distance L may vary depending on the setting of the user. The range in which the object detection sensor 140 detects the movement of the object may have a certain angle. The object detection sensor 140 may be installed in a motor or the like to detect movement of an object while rotating, but the present invention is not limited thereto.

In another embodiment, the washing machine includes a camera, and the controller can determine whether a person is staring at the washing machine. The controller may cause the plurality of buttons 120 and the door 110 to display a light pattern when the user senses that the user's sight line is facing the case.

Referring to FIG. 5 (a), the object detection sensor 140 can detect the movement of an object within the set distance L. FIG. The object detection sensor 140 can transmit the detection signal to the control unit when a person enters the set distance. In FIG. 5, the object detection sensor 140 may be an ultrasonic sensor, a laser sensor, or an infrared sensor, but the present invention is not limited thereto. The washing machine may include a camera instead of the object detection sensor 140.

Referring to FIG. 5B, when a person enters the set distance from the washing machine 1, the controller may cause the plurality of buttons 120 and the door 110 to display a light pattern. For example, when the user enters the set distance, the control unit may display the light pattern of the lower ring of the door 110 by causing the plurality of buttons 120 to display the light pattern of the upper ring.

In the embodiment of FIG. 5, although the object detection sensor 140 determines whether or not a person is approaching, the present invention is not limited thereto. In the case of an embodiment in which the washing machine includes a camera, It can be determined whether or not it is approaching.

The camera can shoot an object around the washing machine. The controller may cause the plurality of buttons 120 and the door 110 to display a light pattern when the user senses that the user's sight line is pointing toward the case based on the image captured by the camera.

In another embodiment, when the case is touched,

Referring to FIG. 6C, the object detection sensor 140 can determine whether a person is moving away from the washing machine. The object detection sensor 140 can transmit the object to the control unit when the object within the set distance, which is the area detected by the object detection sensor 140, is out of the set distance.

In the case of another embodiment in which the washing machine includes a camera, the camera continuously displays the periphery of the washing machine, and the control unit continuously analyzes the image taken by the camera to determine whether or not the surrounding object is moving. However, No.

Referring to (D) of FIG. 6, the control unit can display a person when the person moves away from the washing machine. For example, the control unit may indicate that a person is away from the washing machine with the plurality of buttons 120, the door 110, the speaker 162, or the display 130.

The plurality of buttons 120 can display a light pattern of a bottom half-ring shape. The door 110 can display a light pattern in the shape of an upper half ring. The washing machine can display a light pattern of a crying shape.

Referring to FIG. 7, the plurality of buttons 120 may convert light patterns at predetermined time intervals. For example, the plurality of buttons 120 can alternately display the upper half-ring shaped light pattern and the ring-shaped light pattern.

Although the plurality of buttons 120 of the embodiment shown in FIG. 7 alternately displays the upper half-ring shaped light pattern and the ring-shaped light pattern, in other embodiments, the lower half-ring shaped light pattern and the ring- It can be displayed alternately.

The light pattern of the door 110 may also be converted into a top ring, a bottom ring, or a ring at regular intervals, but is not limited thereto.

Referring to FIG. 8, the communication unit can receive weather information from an external server.

The position sensing sensor can grasp the current position of the washing machine. The communication unit can receive weather information of the current position of the washing machine from the external server 300. [ And the communication unit can transmit the received weather information to the control unit.

Referring to FIG. 8 (E), the control unit can determine whether a person has approached the washing machine based on the information received from the object detection sensor 140 or the like.

Referring to (F) of FIG. 8, when the controller determines that a person approaches the washing machine, the controller can display weather information. The control unit can recommend the operation mode based on the weather information.

For example, if the weather information includes that a yellow dust warning has been issued in the area where the washing machine is installed, the control unit can recommend an allergy care course.

The display 130 may display weather information when receiving a signal from the control unit. The display 130 may display an operation mode recommended by the control unit.

9 is a flowchart showing a washing machine control method according to an embodiment of the present invention.

Referring to FIG. 9, a method of controlling a washing machine according to an exemplary embodiment of the present invention includes a step S410 of detecting movement of an object, a step S420 of displaying a ring-shaped light pattern on a plurality of buttons and doors, , Receiving weather information of the current location (S430), and displaying weather information (S440).

In operation S410, the movement of the object may be detected by using an object detection sensor. According to the embodiment, the controller of the washing machine can detect the movement of the object based on the image taken by the camera. In another embodiment, the washing machine control method may include a sensor capable of sensing a touch on the case, for example, a sensor for sensing static electricity, a sensor for sensing pressure or vibration, and the like.

In the step S420 of displaying a ring-shaped light pattern on the plurality of buttons and doors when the movement of the object is sensed, when the control unit of the washing machine senses the movement of the object, an operation command is transmitted to the plurality of buttons and doors can do.

In step S420 of displaying a light pattern, a ring pattern or a ring pattern can be displayed on a plurality of buttons and doors. For example, when a person is approaching the control unit of the washing machine, a plurality of buttons can display a light pattern in the shape of an upper half ring. The controller of the washing machine can display a light pattern of the bottom half of the door when a person approaches.

When the control unit detects that the person is moving away from the washing machine, the plurality of buttons may display the light pattern of the bottom half-ring shape and the door may display the light pattern of the top half piece shape.

In another embodiment, the plurality of buttons may alternately display a light pattern of a top ring shape or a bottom ring shape and a light pattern of a ring shape. The plurality of buttons can alternately display a plurality of light patterns at predetermined time intervals.

The washing machine control method of one embodiment may further include a step of determining a current position of the washing machine. The position sensing sensor can grasp the current position of the washing machine.

The step of receiving weather information (S430) may receive weather information of the current location of the washing machine. The communication unit can access the external server and receive weather information of the current location.

The control unit may display a recommended driving mode based on weather information and weather information of the current position of the washing machine (S440). The control unit can display the weather information and the recommended driving mode visually or audibly using a display or a speaker. The speaker can output the recommended driving mode based on the weather information by voice.

In a washing machine control method of an embodiment, when a plurality of buttons detect movement of an object and the input of the plurality of buttons is not detected within a predetermined time, the plurality of buttons display a light pattern of a bottom half-ring shape, And displaying the light pattern of the light source.

The present invention is not necessarily limited to these embodiments, as all the constituent elements constituting the embodiment of the present invention have been described as being combined or combined in one operation. Within the scope of the present invention, depending on the embodiment, all of the components may operate selectively in combination with one or more.

All of the components may be implemented as one independent hardware, but a part or all of the components may be selectively combined to provide a computer having a program module that performs some or all of the functions combined in one or a plurality of hardware May be implemented as a program.

A plurality of codes and code segments constituting a computer program may be easily deduced by those skilled in the art. Such a computer program can be stored in a computer-readable storage medium, readable and executed by a computer, thereby realizing an embodiment of the present invention. As the storage medium of the computer program, a magnetic recording medium, an optical recording medium, a carrier wave medium, or the like may be included.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements.

All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined.

Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

The embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

1: Washing machine
110: Door
120: Button
130: Display
140: Object detection sensor
162: Speaker

Claims (16)

A case forming an appearance;
A plurality of buttons disposed in front of the case and including a light source for displaying a ring-shaped light pattern;
An object detection sensor for detecting movement of an object within a predetermined set distance;
A door disposed in one region of the rim and including a light source for displaying a light pattern; And
And a controller for causing the plurality of buttons and the door to display a predetermined pattern when the object detecting sensor detects movement of the object. The method according to claim 1,
Wherein the door is formed in a circular shape so as to display a light pattern of a bottom half of the rim. The method according to claim 1,
And the plurality of buttons are illuminated by the upper half of the rim. The method of claim 3,
Wherein the plurality of buttons alternately displays a ring pattern light pattern and an upper ring pattern light pattern at predetermined time intervals. The method according to claim 1,
Wherein the plurality of buttons are two, one is disposed at the upper left of the case, and the other is disposed at the upper right of the case. The method according to claim 1,
And a touch sensor for recognizing that the case is touched,
Wherein the controller causes the plurality of buttons and the door to display a light pattern when the case is touched. The method according to claim 1,
And a camera for photographing an object around the washing machine,
Wherein the controller causes the plurality of buttons and the door to display a light pattern when it is detected based on an image photographed by the camera that a human's eyes are pointing toward the case. The method according to claim 1,
A display for displaying various information;
A position detection sensor for detecting the current position; And
And a communication unit for connecting to the Internet,
Wherein the communication unit receives weather information of a current location, which is recognized by the location sensor, from an external server,
Wherein the control unit displays the weather information on the display when the object detection sensor detects movement of the object. The method according to claim 1,
When the object detection sensor detects movement of an object and there is no input to any one of the plurality of buttons within a predetermined time,
Wherein the plurality of buttons display a light pattern of a bottom half-ring shape, and the door displays a light pattern of an upper half piece shape. 10. The method of claim 9,
Wherein the plurality of buttons alternately displays a ring pattern light pattern and a bottom ring pattern light pattern at predetermined time intervals. Sensing movement of an object;
Displaying a ring-shaped light pattern on a plurality of buttons and doors when the movement of the object is sensed;
Determining a current position;
Receiving weather information of the current location; And
And displaying the weather information. 12. The method of claim 11,
Wherein the displaying the weather information comprises:
And recommends the operation mode based on the weather information. 13. The method of claim 12,
Wherein the displaying the weather information comprises:
And outputting a recommended driving mode based on the weather information by voice. 12. The method of claim 11,
Wherein the step of displaying the light pattern comprises:
Wherein the light patterns of the plurality of buttons are in the shape of an upper half ring. 15. The method of claim 14,
Wherein the step of displaying the light pattern comprises:
Wherein the plurality of buttons alternately displays a ring pattern light pattern and an upper ring pattern light pattern at predetermined time intervals. 12. The method of claim 11,
When a movement of an object is sensed and the plurality of buttons do not detect an input within a predetermined time,
Wherein the plurality of buttons display a light pattern of a bottom semi-circular shape, and the door displays a light pattern of an upper semi-circular pattern.

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