KR20200093210A - Washing machine and control method thereof - Google Patents

Abstract

The present invention relates to a washing machine and a control method thereof, and more specifically, to technology for determining the horizontal state of the washing machine by sensing vibration of the washing machine when the washing machine is installed. The washing machine according to an embodiment includes: a tub; a drum rotationally installed inside the tub; a motor for rotating the drum; a vibration sensor that detects the vibration of the tub caused by the rotation of the motor; an input unit that receives a horizontal state determination mode for determining the horizontal state of the washing machine; and a control unit that controls a predetermined amount of water to be supplied to the tub when the horizontal state determination mode is input, and determines the horizontal state of the washing machine based on vibration data of the washing machine caused by rotation of the drum in the watered tub.

Description

Washing machine and its control method{WASHING MACHINE AND CONTROL METHOD THEREOF}

It relates to a washing machine and a control method thereof, and more particularly, to a technology for determining the horizontal state of the washing machine by detecting vibration of the washing machine when the washing machine is installed.

Generally, a washing machine (usually a drum washing machine) includes a tub for fresh water of washing water (washing water or rinsing water), a drum rotatably installed inside the tub to accommodate laundry, and a driving force for rotating the drum When the drum of the cylindrical type including the motor generating the rotation, the laundry inside the laundry rises along the inner wall of the drum and then falls through the operation.

The washing machine washes the laundry with detergent-dissolved water (specifically, wash water) to separate contamination of the laundry, and rinses to rinse foam or residual detergent from the laundry with water without detergent (specifically, rinse water). Washing is performed in a series of operations such as a stroke and a dehydration stroke to dehydrate the laundry at high speed. When washing is performed in such a series of motions, when the drum is rotated in an unbalanced state in which laundry is not evenly distributed within the drum, a biased force is applied to the axis of rotation of the drum and the drum moves eccentrically. Occurs. The vibration of this tub becomes worse when the drum rotates at high speed for the dehydration stroke.

On the other hand, if the horizontal state of the washing machine is not properly aligned when the washing machine is initially installed, the washing machine may move or generate noise even with a small vibration during the washing process.

Recently, when the washing machine is initially installed, the need for a method for determining the horizontal state of the washing machine to adjust the horizontal state of the washing machine is increasing. In particular, research is being conducted on a technique for detecting vibration through a sensor installed inside the washing machine or determining a horizontal state of the washing machine based on the vibration of the washing machine detected by an external device.

When a washing machine is installed, a washing machine and a control method of determining the horizontal state of the washing machine based on the vibration of the washing machine detected by an external device or detected by an external device are provided.

Washing machine according to an embodiment for achieving the above object,

The tub, a drum rotatably installed inside the tub, a motor for rotating the drum, a vibration sensor for detecting the vibration of the tub caused by the rotation of the motor, and a horizontal state determination mode for determining the horizontal state of the washing machine When the receiving input unit and the horizontal state determination mode are input, a predetermined amount of water is controlled to be supplied to the tub, and the horizontal state of the washing machine is based on the vibration data of the washing machine caused by the rotation of the drum within the supplied tub. It includes a control unit for determining.

In addition, the tub may further include a water supply unit for supplying a predetermined amount of water.

In addition, the controller may control the drum to rotate in a clockwise or counterclockwise direction based on a predetermined number of rotations in the watered tub.

Further, the vibration sensor may acquire at least one of a vibration direction or a vibration intensity of the washing machine by rotation of the drum.

In addition, the control unit determines a horizontal state of the washing machine based on at least one of the obtained vibration direction or vibration intensity, and based on the determined horizontal state of the washing machine, at least one leg provided in the washing machine (leg) Among them, you can decide which leg needs height adjustment.

In addition, the display unit further displays a horizontal state of the washing machine, and the display unit may display at least one of a vibration direction or a vibration intensity of the washing machine obtained by the vibration sensor.

In addition, the display unit may display a leg requiring the height adjustment among the at least one leg.

In addition, the vibration sensor may include an acceleration sensor and be fixedly installed on the top of the tub of the washing machine.

Washing machine according to another embodiment for achieving the above object,

A tub, a drum rotatably installed inside the tub, a motor for rotating the drum, a communication unit receiving vibration data of the washing machine generated according to the rotation of the motor from an external device, and the communication unit horizontally leveling the washing machine from the external device When receiving a horizontal state determination mode input for determining a state, a predetermined amount of water is controlled to be supplied to the tub, and vibration data of the washing machine by rotation of the drum is received from the external device within the supplied tub. It may include a control unit for determining the horizontal state of the washing machine.

In addition, the controller may control the drum to rotate clockwise or counterclockwise based on a predetermined number of rotations in the watered tub based on the horizontal state determination mode of the washing machine received from the external device. have.

Further, the communication unit may receive data on at least one of a vibration direction or a vibration intensity of the washing machine by rotation of the drum from the external device.

In addition, the control unit determines a horizontal state of the washing machine based on data on at least one of the received vibration direction or vibration intensity, and at least one leg provided in the washing machine based on the determined horizontal state of the washing machine Among them, you can decide which leg needs height adjustment.

In addition, the communication unit may transmit data on a horizontal state of the washing machine determined based on data on at least one of the received vibration direction or vibration intensity to the external device.

In addition, the communication unit may transmit data on a leg requiring height adjustment from the at least one leg to the external device.

In addition, the control method of the washing machine according to an embodiment for achieving the above object,

A horizontal state determination mode for determining the horizontal state of the washing machine is input, and a predetermined amount of water is controlled to be supplied to the tub based on the input horizontal state determination mode, and the drum is rotated in the watered tub. The vibration data of the washing machine is acquired, and the horizontal state of the washing machine is determined based on the obtained vibration data of the washing machine.

In addition, the tub may further include controlling so that a predetermined amount of water is supplied to the tub.

In addition, the drum may further include controlling to rotate in the clockwise or counterclockwise direction based on a predetermined number of rotations in the watered tub.

In addition, acquiring vibration data of the washing machine may include acquiring at least one of a vibration direction or vibration intensity of the washing machine by rotation of the drum.

In addition, determining the horizontal state of the washing machine includes determining the horizontal state of the washing machine based on at least one of the acquired vibration direction or vibration intensity, and based on the determined horizontal state of the washing machine to the washing machine. It may further include determining a leg that requires height adjustment among at least one leg provided.

In addition, further comprising displaying the horizontal state of the washing machine, and further comprising displaying at least one of the obtained vibration direction or vibration intensity, and displaying the leg requiring the height adjustment among the at least one leg It may further include.

In addition, the control method of the washing machine according to another embodiment for achieving the above object,

A horizontal state determination mode input for determining the horizontal state of the washing machine is received from an external device, and a predetermined amount of water is controlled to be supplied to the tub based on the received horizontal state determination mode, and the drum is within the watered tub. The vibration data of the washing machine due to the rotation may be received from the external device, and the horizontal state of the washing machine may be determined based on the received vibration data of the washing machine.

In addition, based on the horizontal state determination mode of the washing machine received from the external device, the drum may be controlled to rotate clockwise or counterclockwise based on a predetermined number of rotations in the watered tub.

In addition, receiving the vibration data of the washing machine from the external device may include receiving data on at least one of the vibration direction or vibration intensity of the washing machine by rotation of the drum from the external device.

Further, determining the horizontal state of the washing machine includes determining the horizontal state of the washing machine based on data on at least one of the received vibration direction or vibration intensity, and based on the determined horizontal state of the washing machine. The method may further include determining a leg requiring height adjustment among at least one leg provided in the washing machine.

Also, the method may include transmitting data on a horizontal state of the washing machine determined based on data on at least one of the received vibration direction or vibration intensity to the external device.

In addition, the method may include transmitting data on a leg requiring height adjustment among the at least one leg to the external device.

When installing the washing machine, it is possible to improve the horizontal installation quality of the washing machine by detecting vibration through a sensor installed inside the washing machine or determining the horizontal state of the washing machine based on the vibration of the washing machine detected by an external device. In addition, by setting the horizontal state when installing the washing machine, there is an effect of reducing the occurrence of unnecessary noise.

1 is a perspective view showing the appearance of a washing machine according to an embodiment.
2 is a cross-sectional view showing the configuration of a washing machine according to an embodiment.
3 is a control block diagram of a washing machine according to an embodiment.
4 is a flowchart illustrating a control method of a washing machine according to an embodiment.
5 is a view showing the rotational speed of the drum according to an embodiment and the vibration strength of the washing machine according to the rotation of the drum.
6 and 7 illustrate that vibration data of a washing machine according to an embodiment is displayed.
8 is a view showing a position of a leg required for horizontal adjustment of the washing machine according to vibration data of the washing machine according to an embodiment.
9 is a diagram for displaying a screen for informing a position of a leg requiring height adjustment for a horizontal state of a washing machine according to an embodiment.
10 illustrates that vibration data is displayed when the washing machine according to an embodiment is horizontal.
11 illustrates displaying a screen for notifying that the horizontal adjustment of the washing machine is completed according to an embodiment.
12 is a flowchart illustrating a method of controlling a washing machine according to another embodiment.
13 is a diagram illustrating that an external device senses vibration of a washing machine according to an embodiment.
14 and 15 illustrate that vibration data of a washing machine according to an embodiment is displayed on an external device.
FIG. 16 illustrates that a screen indicating a position of a leg requiring height adjustment for a horizontal state of a washing machine is displayed on an external device according to an embodiment.
17 illustrates that vibration data when the washing machine according to an embodiment is horizontal is displayed on an external device.
18 illustrates that a screen indicating that horizontal adjustment of the washing machine is completed is displayed on an external device according to an embodiment.

The same reference numerals refer to the same components throughout the specification. This specification does not describe all elements of the embodiments, and overlaps between general contents or embodiments in the technical field to which the present invention pertains are omitted. The term'unit, module, member, block' used in the specification may be implemented by software or hardware, and according to embodiments, a plurality of'unit, module, member, block' may be implemented as one component, It is also possible that one'part, module, member, block' includes a plurality of components.

Throughout the specification, when a part is "connected" to another part, this includes not only a direct connection but also an indirect connection, and an indirect connection includes connecting through a wireless communication network. do.

Also, when a part “includes” a certain component, this means that other components may be further included instead of excluding other components, unless otherwise specified.

Terms such as first and second are used to distinguish one component from other components, and the component is not limited by the above-mentioned terms.

Singular expressions include plural expressions, unless the context clearly has an exception.

In each step, the identification code is used for convenience of explanation. The identification code does not describe the order of each step, and each step can be executed differently from the specified order unless a specific order is clearly stated in the context. have.

Hereinafter, working principles and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing the appearance of a washing machine according to an embodiment, and FIG. 2 is a cross-sectional view showing the configuration of a washing machine according to an embodiment.

1 and 2, the washing machine 1 according to an embodiment of the disclosed invention has a body shape having an approximately box shape and forms an exterior, and is installed inside the body 10 and water (washing water or rinsing) It includes a drum-shaped tub 11 provided for fresh water, and a cylindrical drum 12 rotatably installed inside the tub 11 and formed with a plurality of holes 13.

It goes without saying that the washing machine 1 and the control method according to an embodiment of the disclosed invention can be applied to various types of washing machines, such as drum washing machines as well as full-automatic washing machines. However, for convenience of description, hereinafter, an example in which the washing machine 1 is implemented as a drum washing machine will be described.

A vibration sensor 14 for measuring vibration of the tub 11 generated in the process of operating the washing machine 1 is attached and fixed to the upper outer side of the tub 11. The vibration sensor 14 is a MEMS (Micro Electric Mechanical System) sensor that measures the displacement of the tub 11 that moves according to the vibration of the tub 11, the three-axis direction of the tub 11 (X-axis direction, Y-axis direction , Z-axis direction) A 3-axis acceleration sensor that measures vibration and a gyro sensor that is an angular velocity sensor can be used. At this time, the displacement signal measured by the vibration sensor 14 is accelerated from low speed to high speed in order to reduce vibration of the tub 11 during dehydration stroke, and estimates the balance state of the laundry inside the drum 12 to determine whether to operate at high speed dehydration. It is mainly used for.

In general, in the washing stroke, vertical displacement of the drum 12 occurs due to the mechanical falling motion of the laundry, and the vertical displacement can be measured through the vibration sensor 14.

The motor 15 is installed at a lower outer side of the tub 11 as a driving device for rotating the rotating shaft 12a connected to the drum 12 to perform a washing stroke, a rinsing stroke, and a dehydration stroke.

The motor 15 uses a 3-phase brushless direct current motor (BLDC) composed of a permanent magnet and an electric magnet, and the 3-phase BLCD motor (hereinafter referred to as a motor) switches voltage according to a pulse width modulated signal to 3 It is driven by an inverter that supplies phase alternating current.

In addition, the driving device for rotating the drum 12 includes a pulley 15b and a rotating belt 15c that transmit the power of the motor 15 to the drum 12. The rotating belt 15c is installed to be wound on the outer surface of the drum 12 and the pulley 15b coupled to the shaft 15a of the motor 15.

Inside the lower side of the tub 11, a water level sensor 16 that detects a frequency changing according to the water level to detect the amount (water level) of the water in the tub 11, and washing to heat the water in the tub 11 A heater 17 and a temperature sensor 18 for detecting the temperature of the water (washing water or rinsing water) in the tub 11 are installed.

In addition, a door 19 is installed on the front portion of the main body 10 to insert laundry into the drum 12 or take out laundry inside the drum 12.

On the top of the tub 11, a detergent supply device 20 for supplying detergent and a water supply unit 30 for supplying water (washing water or rinsing water) are installed.

The detergent supply device 20 is divided into a plurality of spaces inside, and is installed on the front side of the main body 10 so that a user can easily input detergents and rinsing agents into each space.

In addition, the water supply unit 30 and the cold water and hot water supply pipe (31, 32) to connect between the external water supply pipe and the detergent supply device 20 to supply water (washing water or rinsing water) into the tub (11) , Cold water and hot water supply pipe (31, 32) is installed in the middle of the cold water and hot water valve (33, 34) for controlling the water supply, the detergent supply device 20 and the connection pipe 35 connecting the tub (11) Includes. This configuration allows the water supplied into the tub 11 to pass through the detergent supply device 20 so that the detergent inside the detergent supply device 20 can be supplied to the tub 11 together with water.

In addition, a control panel 40 on which various buttons and displays for controlling the washing machine 1 are disposed is provided on the front upper portion of the main body 10, and connected to the detergent supply device 20 on one side of the control panel 40. The detergent injection unit 21 is provided to inject detergent for the washing machine.

In the control panel 40, various buttons for receiving a user's command for controlling the operation of the washing machine 1, and a display unit for displaying the operation state of the washing machine 1 and the user's operation state are disposed.

In addition, the washing machine 1 according to an embodiment of the present invention installs a drainage device 50 for draining the water inside the tub 11, and the drainage device 50 drains the water in the tub 11 to the outside. A first drain pipe 51 connected to the lower portion of the tub 11 to drain, a drain pump 52 installed in the first drain pipe 51, and a second drain pipe 53 connected to the outlet side of the drain pump 52 It includes.

In addition, the washing machine 1 according to an embodiment of the present invention is a suspension spring 60 elastically supporting the tub 11 at the upper portion of the tub 11 to prevent vibrations generated during the operation of the washing machine 1 ), and a damper 62 for reducing vibration at the lower portion of the tub 11.

The suspension spring 60 and the damper 62 support the tub 11 so as to be flowable at the upper and lower portions of the tub 11, respectively. That is, the tub 11 is excited by the vibration excitation force generated when the drum 12 rotates, and vibration occurs in all directions such as front, rear, left, right, up and down, and the vibration of the tub 11 is the suspension spring 60 and the damper ( 62).

Although not shown in the drawing, as will be described later, the washing machine 1 may be provided with a plurality of legs for supporting the washing machine 1. The legs of the washing machine 1 may generally include four legs located on the right side of the front side of the washing machine 1, the left side of the front side, the right side of the rear side, and the left side of the rear side. The horizontal state of the washing machine 1 may vary according to the height of the leg.

The washing machine 1 may be unbalanced during dehydration of laundry according to the arrangement of laundry inside the drum 12 during the washing process, and vibration and noise may occur due to the washing machine 1 vibration system and set resonance. If the horizontal adjustment is not properly performed when the washing machine 1 is installed, vibration and noise generated from the washing machine 1 increase during the washing stroke.

In the past, in order to determine the horizontal state of the washing machine 1, since the washing machine 1 was stopped, the horizontal state was checked using a level gauge, so that even if the washing machine 1 was actually operating, it was determined whether the horizontal state was properly performed. There was a difficult problem.

That is, when checking the horizontal state of the washing machine 1 while the washing machine 1 is stopped, it is difficult to determine whether the leveling is properly performed according to the height of the leg of the washing machine 1 when the washing machine 1 is operating. There was a problem.

Accordingly, according to the washing machine 1 and the control method according to an embodiment of the disclosed invention, when the washing machine 1 is installed, the washing machine 1 is operated to cause vibration, and vibration data is obtained to obtain the vibration data. You can judge the level.

3 is a control block diagram of a washing machine according to an embodiment, and FIG. 4 is a flow chart showing a control method of a washing machine according to an embodiment. 5 is a view showing the rotational speed of the drum according to an embodiment and the vibration strength of the washing machine according to the rotation of the drum. 6 and 7 show that the vibration data of the washing machine according to an embodiment is displayed, and FIG. 8 shows the position of a leg required for horizontal adjustment of the washing machine according to the vibration data of the washing machine according to an embodiment . 9 is a diagram for displaying a screen for informing a position of a leg requiring height adjustment for a horizontal state of a washing machine according to an embodiment. FIG. 10 illustrates that vibration data is displayed when the washing machine is in a horizontal state according to an embodiment, and FIG. 11 illustrates displaying a screen for notifying that the horizontal adjustment of the washing machine is completed according to an embodiment. .

3, the washing machine 1 according to an embodiment of the disclosed invention includes an input unit 70, a control unit 72, a memory 73, a driving unit 74, a display unit 76, a notification unit 77, and a communication unit (78).

The input unit 70 inputs a command for performing a washing stroke, a rinsing stroke, and a dehydration stroke of the washing machine 1 by a user's operation, and may be configured with a key, a button, a switch, a touch pad, and the like, and press It includes all devices that generate predetermined input data by manipulation such as contact, pressure, rotation.

In addition, the input unit 70 is provided on the control panel 40, and a plurality of buttons (power, reservation, washing water temperature, soaking, washing, rinsing, dehydration, detergent) for inputting user commands related to the operation of the washing machine 1 Type, etc.). Among many buttons, there are laundry courses (standard courses, wool courses, delicate courses, etc. depending on the type of laundry input to the washing machine 1), for example, standard courses selected by the user according to the type of laundry. A course selection button for selecting) is provided.

The input unit 70 may receive a command for an operation mode of the washing machine 1 from a user. In the case of the washing machine 1 according to an embodiment of the disclosed invention, the'horizontal state determination mode' for determining the horizontal state of the washing machine 1 in the installation process of the washing machine 1 may separately operate.

The user can enter the horizontal state determination mode of the washing machine 1 through the input unit 70, and the horizontal state of the washing machine 1 through an external device 100 that can communicate with the washing machine 1, as will be described later. You can also enter a decision mode.

The control unit 72 is a microcomputer that controls the overall operation of the washing machine 1 such as washing, rinsing and dehydration according to the operation information input from the input unit 70, and the target washing level according to the weight (load amount) of laundry in the selected washing course And set the target rinse level, target RPM and operating rate (motor on-off time), washing and rinsing time.

In addition, the control unit 72 checks the fixed state of the tub 11 of the vibration sensor 14 in the weight detection step of momentarily accelerating the motor 15 to detect the weight (load amount) of laundry at the start of the dehydration stroke. . That is, it is to check whether the vibration sensor 14 is normally attached and fixed to the tub 11 by using the rotational force of the motor 15 generated during the instantaneous acceleration of the motor 15 in the weight detection step at the start of the dehydration stroke. . To this end, the control unit 72 receives vibration displacement data of the tub 11 measured through the vibration sensor 14 fixed to the upper portion of the tub 11 when the motor 15 is instantaneously accelerated.

Then, the control unit 72 compares the measured data of the received vibration sensor 14 with the set reference data (displacement data for determining whether the vibration sensor is normally fixed to the tub when the motor is instantaneously accelerated). As a result of comparison, if the measurement data of the vibration sensor 14 is smaller than the reference data, it is determined that the fixed state of the vibration sensor 14 is defective and the dehydration stroke is terminated. At this time, the control unit 72 notifies the user of the fixing failure state of the vibration sensor 14 through the display unit 76.

As a result of comparison, if the measurement data of the vibration sensor 14 is greater than or equal to the reference data, it is determined that the fixed state of the vibration sensor 14 is normal to perform a normal dehydration stroke. Through this method, the control unit 72 prevents problems such as flow of the washing machine or frame touch during the subsequent dehydration process by checking in advance the fixed state of the tub 11 of the vibration sensor 14 in the early stage of the dehydration process. To make.

In addition, the control unit 72 calculates the average value or number of measurement data in the weight detection step at the start of the dehydration stroke to more accurately determine the fixed state of the vibration sensor 14, so that the vibration sensor 14 is normally applied to the tub 11 You can check if it is fixed.

In addition, the control unit 72 measures the vibration of the tub 11 generated by the rotational force of the motor 15 during the dehydration stroke with the vibration sensor 14, and when excessive vibration occurs, the motor 15 is braked to dehydrate the stroke. After stopping the water, the water is re-supplied to perform the defoaming stroke, and then a dehydration retry operation is performed to retry the dehydration stroke.

When the control unit 72 receives the horizontal state determination mode of the washing machine 1 from the user through the input unit 70 or the external device 100, the control unit 72 controls the water supply unit 30 to supply a predetermined amount of water to the tub 11 It is controlled so that the water supply, and the horizontal state of the washing machine 1 can be determined based on the vibration data of the washing machine 1 due to the rotation of the drum 12 in the watered tub 11. This will be described later in detail through FIG. 5 or below.

The memory 73 includes control data for controlling the operation of the washing machine 1, reference data used during operation control of the washing machine 1, operation data generated while the washing machine 1 performs a predetermined operation, and a washing machine ( 1) setting information such as setting data input by the input unit 70 to perform a predetermined operation, usage information including model information of the washing machine 1 and the number of times the washing machine 1 has performed a specific operation, When the washing machine 1 malfunctions, failure information including the cause of the malfunction or the location of the malfunction may be stored.

The memory 73 may store data on the amount of water that is supplied to the tub 11 according to one embodiment of the disclosed invention, and according to the vibration data of the washing machine 1, the standard of the horizontal state adjustment of the washing machine 1 is It is also possible to store the reference value of the vibration data.

The memory 73 is a RAM, a non-volatile memory device such as a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EPMROM), and a flash memory. A volatile memory device such as (Random Access Memory) or a storage medium such as a hard disk drive (HDD) or CD-ROM may be implemented, but is not limited thereto.

The driving unit 74 drives the motor 15, the washing heater 17, the water supply unit 30, the drain pump 52, and the like related to the operation of the washing machine 1 according to the driving control signal of the control unit 72.

That is, when the horizontal state determination mode of the washing machine 1 is input, the driving unit 74 controls the water supply unit 30 under the control of the control unit 72 to supply the tub 11 with a predetermined amount of water, The motor 15 is controlled to rotate the drum 12 in the water-supplied tub 11.

The display unit 76 is provided on the control panel 40 and displays an operation state of the washing machine 1 and a user's operation state according to a display control signal from the control unit 72.

The display unit 76 may display the horizontal state of the washing machine 1 during the washing machine 1 installation process and the operation of the washing machine 1, and vibration data of the washing machine 1 generated by the rotation of the drum 12 Can be displayed. Specifically, at least one of the vibration direction or vibration intensity of the washing machine 1 obtained by the vibration sensor 14 may be displayed.

In addition, the display unit 76 may display information about the position of the leg and the height required to adjust the height to adjust the horizontal state of the washing machine 1, indicating that the horizontal adjustment of the washing machine 1 is completed You can also display the screen.

The notification unit 77 may be implemented in the form of a speaker that outputs a voice signal or an acoustic signal, and may output the operating state of the washing machine 1 and the user's operating state as sound under the control of the control unit 72.

The notification unit 77 may output to the user by outputting the horizontal state of the washing machine 1 by voice or sound during the installation process of the washing machine 1 and the operation of the washing machine 1, and is generated by rotation of the drum 12 The meaning of the vibration data of the washing machine 1 may be output as sound to provide information.

In addition, the notification unit 77 may output information about the position of the leg requiring height adjustment and the height required to adjust the height in order to adjust the horizontal state of the washing machine 1 by voice or sound to inform the user, and the washing machine 1 It may output a sound indicating that the leveling of is completed.

The communication unit 78 may communicate with the external device 100 capable of communicating with the washing machine 1. The external device 100 is not limited as long as it is a device capable of communicating with the washing machine 1, such as a device for exclusive use of the washing machine 1 provided for the purpose of controlling the smartphone, tablet, PC, and washing machine 1.

As will be described later, the user can input a control command related to the operation of the washing machine 1 through the external device 100, and the control command input through the external device 100 is a washing machine ( 1) can receive.

In addition, the external device 100 may acquire vibration data of the washing machine 1 generated by rotation of the drum 12, and the vibration data acquired by the external device 100 may be obtained through the communication unit 78. 1) can receive.

The communication unit 78 may transmit data on the horizontal state of the washing machine 1 determined based on vibration data received from the external device 100 by the washing machine 1 to the external device 100, and Data for legs requiring height adjustment according to the horizontal state may be transmitted to the external device 100.

The communication unit 78 may be implemented using a communication chip, an antenna, and related components to access at least one of a wired communication network and a wireless communication network. That is, the communication unit 78 may be implemented with various types of communication modules capable of short-range communication or long-distance communication with the external device 100.

Referring to FIG. 4, in order to adjust the horizontal state of the washing machine 1 when the washing machine 1 is installed, a washing machine 1 installer or a user may operate a horizontal state determination mode of the washing machine 1.

That is, the user may input a horizontal state determination mode for determining the horizontal state of the washing machine 1 through the input unit 70 (1000 ).

This horizontal state determination mode is a mode that can be operated separately to determine the horizontal state of the washing machine 1 during the washing machine 1 installation process. That is, in the past, when the horizontal state of the washing machine 1 was determined, the horizontal state was determined when the washing machine 1 was stopped, but according to the washing machine 1 and the control method thereof according to an embodiment of the disclosed invention, the washing machine By operating the horizontal state determination mode of (1) to rotate the drum 12, the horizontal state of the washing machine 1 can be determined based on vibration data generated during the operation of the washing machine 1.

When the horizontal state determination mode is input, the control unit 72 may control the predetermined amount of water to be supplied to the tub 11 (1100 ). That is, the control unit 72 controls the water supply unit 30 to supply a predetermined amount of water to the tub 11, and rotates the drum 12 within the water supply tub 11 to vibrate the washing machine 1 Can detect.

At this time, the predetermined amount of water to be supplied to the tub 11 may be different depending on the size and model of the washing machine 1, and may vary according to preset specifications in the manufacture of the washing machine 1. In addition, the control unit 72 according to an embodiment may detect the vibration of the washing machine 1 by rotating the drum 12 without supplying water to the tub 11 of the washing machine 1.

When the predetermined amount of water is supplied to the tub 11, the control unit 72 controls the drum 12 to rotate clockwise or counterclockwise based on a predetermined number of rotations within the supplied tub 11. Can 1200.

That is, the control unit 72 may control the drum 12 to rotate alternately in the clockwise or counterclockwise direction within the water-supplied tub 11, and the drum 12 accelerated by rotation is the tub 11 Causes vibration.

Referring to FIG. 5, the control unit 72 may differently control the speed at which the drum 12 rotates to a predetermined value. As shown in Fig. 5 (a), the direction of rotation of the drum 12 for t1 to t2 hours and the direction of rotation of the drum 12 for t3 to t4 hours are opposite directions, as shown in Fig. 5(b). As shown, when the rotation speed of the drum 12 increases from time t1, the vibration strength of the tub 11 also increases, and when the rotation speed of the drum 12 decreases, the vibration strength of the tub 11 also decreases.

That is, when the washing machine 1 is not horizontal, the flow of the tub 11 increases as the rotational speed of the drum 12 increases, and the flow of the tub 11 increases the vibration of the washing machine 1 frame, thereby increasing the washing machine. The vibration of (1) becomes severe.

On the other hand, as shown in Figure 5 (c), when the washing machine 1 is in a horizontal state, even when the drum 12 rotates, there is little vibration of the washing machine 1, so a stable washing stroke is possible.

The rotational speed of the drum 12 can be controlled according to predetermined rotational speeds v1, v2, and v3, as shown in Fig. 5A. The control unit 72 may vary the rotation speed of the drum 12 according to a predetermined setting.

The vibration sensor 14 may detect vibrations of the tub 11 generated according to the rotation of the drum 12 and obtain vibration data (1300 ). Specifically, the vibration sensor 14 may acquire at least one of a vibration direction or a vibration intensity of the washing machine 1 by rotation of the drum 12.

Referring to FIG. 6, the display unit 76 of the washing machine 1 may display the horizontal state of the washing machine 1. That is, the display unit 76 may display at least one of the vibration direction or the vibration intensity acquired by the vibration sensor 14. The form in which the vibration direction or the intensity of vibration obtained by the vibration sensor 14 is displayed on the display unit 76 may be variously implemented. For example, as illustrated in FIG. 6, a washing machine 1 with legs installed (1) ), the direction in which the washing machine 1 shakes may be displayed based on the bottom surface, and the vibration intensity may be displayed in a graph form.

6 shows that the vibration direction and the intensity of vibration when the washing machine 1 is shaken in the direction 201 shown in the drawing are displayed on the display unit 76.

Referring to FIG. 8, when the washing machine 1 is not horizontal due to the heights of the front right leg 22a and the rear left leg 22c of the washing machine 1, the drum 12 rotates. The washing machine 1 is shaken in the direction 201 shown in the drawing, and vibration of the tub 11 occurs accordingly.

The user can adjust the washing machine 1 to be in a horizontal state by checking the vibration direction and intensity of the washing machine 1 displayed on the display unit 76. That is, the user can determine the position of the legs 22a and 22c requiring adjustment of the height of the washing machine 1 based on the vibration direction displayed on the display unit 76, and the horizontality of the washing machine 1 based on the vibration intensity. You can determine if adjustment is necessary.

The user may determine that the horizontal adjustment of the washing machine 1 is unnecessary when the vibration strength of the washing machine 1 displayed on the display unit 76 is less than a predetermined strength, while the washing machine 1 when the vibration strength is higher than a predetermined strength. It can be judged that it is necessary to adjust the level.

FIG. 7 shows that the vibration direction and the intensity of vibration when the washing machine 1 is shaken in the direction 202 shown in the drawing are displayed on the display unit 76.

Referring to FIG. 8, when the washing machine 1 is not horizontal due to the heights of the front left leg 22b and the rear right leg 22d of the washing machine 1, the drum 12 rotates. The washing machine 1 is shaken in the direction 202 shown in the drawing, and vibration of the tub 11 occurs accordingly.

The user can adjust the washing machine 1 to be in a horizontal state by checking the vibration direction and intensity of the washing machine 1 displayed on the display unit 76. That is, the user can determine the position of the legs 22b and 22d that need to adjust the height of the washing machine 1 based on the vibration direction displayed on the display unit 76, and the horizontality of the washing machine 1 based on the vibration intensity. You can determine if adjustment is necessary.

The controller 72 may determine the horizontal state of the washing machine 1 based on the vibration data of the washing machine 1 obtained by the vibration sensor 14 (1400). That is, the control unit 72 determines the horizontal state of the washing machine 1 based on at least one of the vibration direction or the vibration intensity acquired by the vibration sensor 14, and the washing machine 1 based on the horizontal state of the washing machine 1. ) May be determined from among the legs 22a, 22b, 22c, and 22d provided in (1500).

If the vibration direction is obtained in the direction 201 shown in FIG. 6 and the vibration intensity is equal to or greater than a predetermined value, the control unit 72 may include a front right leg 22a and a rear left leg 22c of the washing machine 1. It may be determined that horizontal adjustment for the display unit is necessary, so that the display unit 76 may display information on the front right leg 22a and the rear left leg 22c that require height adjustment. At this time, the control unit 72 may control the display unit 76 to display information on the height to be adjusted, as well as information on the front leg right leg 22a and the rear leg 22c, which require height adjustment. have.

Likewise, when the vibration direction is obtained in the direction 202 shown in FIG. 7 and the vibration intensity is equal to or greater than a predetermined value, the control unit 72 has a front leg left leg 22b and a rear leg right leg ( It is determined that horizontal adjustment for 22d) is necessary, so that the display unit 76 can be controlled to display information on the front left leg 22b and the rear right leg 22d, which require height adjustment. At this time, the control unit 72 may control the display unit 76 to display information on the height to be adjusted, as well as information on the left leg 22b and the right leg 22d of the front portion requiring height adjustment. have.

As shown in FIG. 9, the display unit 76 displays information on legs requiring height adjustment together with vibration data of the washing machine 1 (1600) and requests a horizontal state adjustment of the washing machine 1 Can be displayed.

On the other hand, the notification unit 77 of the washing machine 1 is a predetermined acoustic signal such as a voice or a warning sound to the information on the leg that requires the height adjustment of the washing machine 1 and the message requesting the horizontal state adjustment of the washing machine 1 Can print

The user checks the vibration data of the washing machine 1 displayed on the display unit 76 and a message about adjusting the horizontal state of the washing machine 1, or adjusts the horizontal state of the washing machine 1 output from the notification unit 77 The horizontal state of the washing machine 1 may be adjusted by listening to the request message.

That is, the user can make the washing machine 1 horizontal by adjusting the height of the leg corresponding to the vibration direction based on the vibration direction and the vibration strength of the washing machine 1.

FIG. 10 shows that when the washing machine 1 is in a horizontal state, a vibration direction and a vibration intensity are displayed on the display unit 76.

That is, when the washing machine 1 is horizontal according to the height adjustment of the legs 22a, 22b, 22c, and 22d of the washing machine 1, the vibration of the tub 11 does not occur even if the drum 12 rotates. The vibration data obtained by the vibration sensor 14 does not include data on the vibration direction and vibration intensity, and thus, the display unit 76 hardly displays the vibration direction and vibration intensity of the washing machine 1.

As shown in FIG. 11, when the washing machine 1 is in a horizontal state, the display unit 76 may display a message indicating that the horizontal adjustment of the washing machine is completed. In addition, the notification unit 77 may output a message indicating that the horizontal adjustment of the washing machine is completed as a predetermined sound signal such as voice or warning sound.

The user can check the message about the horizontal state of the washing machine 1 displayed on the display unit 76 or listen to the sound signal output from the notification unit 77 to complete the horizontal state adjustment of the washing machine 1. .

When the washing machine 1 is installed, the user can perform the horizontal adjustment of the washing machine 1 in the same manner as described above, and the control unit 72 uses data on the vibration direction and vibration strength obtained by the vibration sensor 14. Based on the determination that the washing machine 1 is in a horizontal state, the user can complete the horizontal adjustment of the washing machine 1. Alternatively, the horizontal state determination mode of the washing machine 1 may be automatically terminated under the control of the control unit 72.

That is, when the horizontal state determination mode of the washing machine 1 is input, the control unit 72 determines the horizontal state of the washing machine 1 through the same method as described above, so that the vibration data of the washing machine 1 is obtained. 14), and determines the horizontal state of the washing machine 1 based on the obtained vibration data, and controls the display unit 76 to display information on the leg whose height is to be adjusted accordingly.

If the washing machine 1 is not in a horizontal state as a result of the determination of the control unit 72 even after the user performs the horizontal adjustment of the washing machine 1, the series of operations according to the horizontal state determination mode are repeatedly controlled, and the washing machine 1 When is leveled, control according to the horizontal state determination mode ends.

4 to 11, according to an embodiment of the disclosed invention, the vibration sensor 14 provided in the washing machine 1 detects vibration of the washing machine 1, and the vibration sensor 14 acquires the washing machine 1 A description has been given of an embodiment in which vibration data and information on legs requiring height adjustment for horizontal adjustment of the washing machine 1 are displayed on the display unit 76 of the washing machine 1.

That is, the user can input the horizontal state determination mode through the input unit 70 provided in the washing machine 1 prior to the installation of the washing machine 1, and the drum within the water supply tub 11 according to the input horizontal state determination mode command. The vibration data of the washing machine 1 generated when the 12 is rotated can be obtained by the vibration sensor 14 provided in the washing machine 1.

The control unit 72 determines the horizontal state of the washing machine 1 based on the vibration data of the washing machine 1, and the vibration data of the washing machine 1 and a message for horizontal adjustment of the washing machine 1 are displayed on the washing machine 1. It is controlled to be displayed on the display unit 76. The user can check the message displayed on the display unit 76 of the washing machine 1 and perform horizontal adjustment of the washing machine 1 accordingly.

On the other hand, unlike the above-described embodiment, the vibration generated in the washing machine 1 can be detected by the external device 100, and the vibration data of the washing machine 1 obtained by the external device 100 is the external device 100 ) And the washing machine 1 may be transmitted to the washing machine 1.

In addition, the user may input the horizontal state determination mode of the washing machine 1 through an application installed in the external device 100 instead of the input unit 70 provided in the washing machine 1.

The controller 72 determines the horizontal state of the washing machine 1 based on the vibration data of the washing machine 1, and adjusts the vibration data of the washing machine 1 and the horizontal adjustment of the washing machine 1 obtained by the external device 100. The message for can be displayed on the external device 100.

The user may perform horizontal adjustment of the washing machine 1 by recognizing vibration data of the washing machine 1 displayed on the external device 100 and a message for adjusting the horizontal state of the washing machine 1.

That is, the washing machine 1 may communicate with the external device 100 through the communication unit 78, and a user may input a washing machine 1 control command through the external device 100, and the external device 100 Through the screen displayed on the horizontal state of the washing machine 1 can be performed.

12 is a flowchart illustrating a method of controlling a washing machine according to another embodiment. 13 is a diagram illustrating that an external device senses vibration of a washing machine according to an embodiment. 14 and 15 show that vibration data of the washing machine according to an embodiment is displayed on an external device, and FIG. 16 is a screen informing a position of a leg requiring height adjustment for a horizontal state of the washing machine according to an embodiment It shows what is displayed on the external device. FIG. 17 illustrates that vibration data when the washing machine according to an embodiment is horizontal is displayed on an external device, and FIG. 18 shows a screen indicating that the horizontal adjustment of the washing machine is completed according to an embodiment on the external device. It shows what works.

The external device 100 is not limited as long as it is a device capable of communicating with the washing machine 1, such as a device for exclusive use of the washing machine 1 provided for the purpose of controlling a smartphone, a tablet, a PC, and a washing machine 1, but the convenience of description For example, the case where the external device 100 is a smartphone will be described as an example.

Referring to FIG. 12, in order to adjust the horizontal state of the washing machine 1 when the washing machine 1 is installed, a washing machine 1 installer or a user may operate a horizontal state determination mode of the washing machine 1.

The user may input a horizontal state determination mode for determining the horizontal state of the washing machine 1 through the external device 100, and the communication unit 78 of the washing machine 1 may select a horizontal state determination mode from the external device 100. An input may be received (2000).

That is, a dedicated application for controlling the washing machine 1 may be installed in the external device 100, and the user may execute an application to input control commands related to the operation of the washing machine 1.

When the communication unit 78 receives the horizontal state determination mode input of the washing machine 1 from the external device 100, the control unit 72 may control the predetermined amount of water to be supplied to the tub 11 (2100). . That is, the control unit 72 controls the water supply unit 30 to supply a predetermined amount of water to the tub 11, and rotates the drum 12 within the water supply tub 11 to vibrate the washing machine 1 Can be detected.

When the predetermined amount of water is supplied to the tub 11, the control unit 72 controls the drum 12 to rotate clockwise or counterclockwise based on a predetermined number of rotations within the supplied tub 11. You can (2200).

That is, the control unit 72 may control the drum 12 to rotate alternately in the clockwise or counterclockwise direction within the water-supplied tub 11, and the drum 12 accelerated by rotation is the tub 11 Causes vibration.

The control unit 72 controls the rotational speed of the drum 12, as described above with reference to FIG. 5, a duplicate description will be omitted.

When the drum 12 rotates and vibration of the washing machine 1 occurs, the external device 100 may detect vibration of the washing machine 1 to obtain vibration data. Specifically, the external device 100 may acquire at least one of a vibration direction or a vibration intensity of the washing machine 1 by rotation of the drum 12.

As illustrated in FIG. 13, the user may mount the external device 100 at an arbitrary location of the washing machine 1, and the mounted external device 100 may sense vibration of the washing machine 1.

That is, when the vibration of the tub 11 occurs according to the rotation of the drum 12, vibration is transmitted to the frame of the washing machine 1, and the vibration of the washing machine 1 is external device 100 mounted on the washing machine 1 It can be detected by a built-in vibration sensor (not shown).

The vibration sensor embedded in the external device 100 may be implemented as a sensor functioning as the vibration sensor 14 embedded in the washing machine 1. That is, the sensor embedded in the external device 100 may be implemented as a MEMS sensor, an acceleration sensor, a gyro sensor, and the like.

An application related to the operation of the washing machine 1 may be installed in the external device 100, and the vibration detection function of the vibration sensor built in the external device 100 may be activated according to the execution of the application.

Referring to FIG. 14, the display unit 110 of the external device 100 may display a horizontal state of the washing machine 1. That is, the display unit 110 of the external device 100 may display at least one of a vibration direction or a vibration intensity acquired by the vibration sensor of the external device 100.

The form in which the vibration direction or the intensity of vibration obtained by the external device 100 is displayed on the display unit 110 may be variously implemented. As shown in FIG. 14, the bottom surface of the washing machine 1 with legs installed The direction in which the washing machine 1 shakes may be displayed, and the vibration intensity may be displayed in a graph form as a reference.

FIG. 14 shows that the vibration direction and the intensity of vibration when the washing machine 1 is shaken in the direction 201 shown in the drawing are displayed on the display unit 110 of the external device 100. As described above with reference to FIG. 6, content that can be displayed on the display unit 76 of the washing machine 1 can be displayed on the external device 100.

As described above in FIG. 8, when the washing machine 1 is not horizontal due to the heights of the front right leg 22a and the rear left leg 22c of the washing machine 1, the drum 12 rotates. The washing machine 1 is shaken in the direction 201 indicated in the drawing of FIG. 14, and vibration of the tub 11 occurs accordingly.

The user can adjust the washing machine 1 to be in a horizontal state by checking the vibration direction and vibration strength of the washing machine 1 displayed on the external device 100. That is, the user can determine the position of the legs 22a and 22c requiring height adjustment of the washing machine 1 based on the vibration direction displayed on the external device 100, and the horizontality of the washing machine 1 based on the vibration intensity You can determine if adjustment is necessary.

The user may determine that the horizontal adjustment of the washing machine 1 is unnecessary when the vibration strength of the washing machine 1 displayed on the external device 100 is less than a predetermined strength, whereas the washing machine 1 when the vibration strength is higher than a predetermined strength. It can be judged that it is necessary to adjust the level.

FIG. 15 shows that the vibration direction and the vibration intensity when the washing machine 1 is shaken in the direction 202 shown in the drawing are displayed on the display unit 110 of the external device 100. As described above with reference to FIG. 7, content that can be displayed on the display unit 76 of the washing machine 1 can be displayed on the external device 100.

As described above in FIG. 8, when the washing machine 1 is not horizontal by the heights of the front left leg 22b and the rear right leg 22d of the washing machine 1, the drum 12 rotates. The washing machine 1 is shaken in the direction 202 shown in the drawing of 15, and vibration of the tub 11 occurs accordingly.

The user can adjust the washing machine 1 to be in a horizontal state by checking the vibration direction and vibration strength of the washing machine 1 displayed on the external device 100. That is, the user can determine the position of the legs 22b and 22d that need to adjust the height of the washing machine 1 based on the vibration direction displayed on the external device 100, and the horizontality of the washing machine 1 based on the vibration intensity You can determine if adjustment is necessary.

Meanwhile, the communication unit 78 of the washing machine 1 may receive vibration data of the washing machine 1 due to the rotation of the drum 12 from the external device 100 (2300).

The control unit 72 may determine the horizontal state of the washing machine 1 based on the vibration data of the washing machine 1 received from the external device 100 (2400). That is, the controller 72 determines the horizontal state of the washing machine 1 based on at least one of the vibration direction or the vibration intensity acquired by the external device 100, and the washing machine 1 based on the horizontal state of the washing machine 1 ) May be determined from among the legs 22a, 22b, 22c, and 22d provided (2500).

When the vibration direction is obtained in the direction 201 shown in FIG. 14 and the vibration intensity is equal to or greater than a predetermined value, the control unit 72 may include a front right leg 22a and a rear left leg 22c of the washing machine 1. It is determined that horizontal adjustment is required, and the communication unit 78 is controlled to transmit data on a leg requiring height adjustment to the external device 100 (2600).

The external device 100 receives the data for the legs from the communication unit 78 of the washing machine 1, and information on the front right leg 22a and the rear left leg 22c, which require height adjustment, to the display 110 Can be displayed. At this time, the display unit 110 of the external device 100 may display information on the height to be adjusted, as well as information on the front right leg 22a and the rear left leg 22c, which require height adjustment.

Likewise, when the vibration direction is obtained in the direction 202 shown in FIG. 15 and the vibration intensity is equal to or greater than a predetermined value, the control unit 72 has a front leg left leg 22b and a rear leg right leg ( It may be determined that horizontal adjustment for 22d) is necessary, and the communication unit 78 may be controlled to transmit data for a leg requiring height adjustment to the external device 100 (2600).

The external device 100 receives data on the legs from the communication unit 78 of the washing machine 1, and information on the front left leg 22b and the rear right leg 22d, which require height adjustment, is displayed on the display 110. Can be displayed. At this time, information on the height to be adjusted as well as information on the front left leg 22b and the rear right leg 22d, which require height adjustment, may be displayed on the display unit 110 of the external device 100.

As shown in FIG. 16, the control unit 72 may control the communication unit 78 to transmit data for a leg requiring height adjustment to the external device 100, and the display unit 110 of the external device 100 may It is possible to display the information requesting the horizontal state of the washing machine 1 by displaying information on the leg requiring height adjustment together with vibration data of the washing machine 1.

On the other hand, the external device 100 may output information about a leg requiring height adjustment of the washing machine 1 and a message requesting the horizontal state adjustment of the washing machine 1 as a predetermined sound signal such as a voice or warning sound.

The user checks the vibration data of the washing machine 1 displayed on the external device 100 and a message about adjusting the horizontal state of the washing machine 1, or adjusts the horizontal state of the washing machine 1 output from the external device 100 The horizontal state of the washing machine 1 may be adjusted by listening to the request message.

That is, the user checks the horizontal state of the washing machine 1 through the external device 100, and adjusts the height of the leg corresponding to the vibration direction based on the vibration direction and the intensity of the vibration of the washing machine 1, thereby washing the machine 1 Can be leveled.

FIG. 17 shows that when the washing machine 1 is in a horizontal state, the vibration direction and the vibration intensity are displayed on the external device 100.

That is, when the washing machine 1 is horizontal according to the height adjustment of the legs 22a, 22b, 22c, and 22d of the washing machine 1, the vibration of the tub 11 does not occur even if the drum 12 rotates. The vibration data obtained by the external device 100 mounted on the washing machine 1 does not include data on the vibration direction and vibration intensity, and thus the vibration direction of the washing machine 1 is displayed on the display unit 110 of the external device 100. And vibration intensity is hardly displayed.

As shown in FIG. 18, when the washing machine 1 is in a horizontal state, the control unit 72 may control the communication unit 78 to transmit data on the horizontal adjustment of the washing machine 1 to the external device 100. In addition, the display unit 110 of the external device 100 may display a message indicating that horizontal adjustment of the washing machine is completed.

In addition, the external device 100 may output a message informing that the horizontal adjustment of the washing machine is completed as a predetermined sound signal such as a voice or warning sound.

The user may check the message on the horizontal state of the washing machine 1 displayed on the external device 100 or complete the horizontal state adjustment on the washing machine 1 by listening to an acoustic signal output from the external device 100. .

When the washing machine 1 is installed, the user can perform horizontal adjustment of the washing machine 1 through a screen displayed on the external device 100, and the control unit 72 may obtain vibration direction and vibration obtained by the external device 100. If it is determined that the washing machine 1 is horizontal based on the data on the intensity, the user can complete the horizontal adjustment of the washing machine 1. Alternatively, the horizontal state determination mode of the washing machine 1 may be automatically terminated under the control of the control unit 72.

That is, when the horizontal state determination mode of the washing machine 1 is input, the control unit 72 controls the water to be supplied to the tub 11 of the washing machine 1, and the external device 100 mounted on the washing machine 1 is The horizontal state of the washing machine 1 may be determined based on vibration data obtained according to the rotation of the drum 12.

The control unit 72 determines a leg whose height is to be adjusted according to the horizontal state of the washing machine 1, and information about the horizontal state of the washing machine 1 and information about a leg whose height is to be adjusted is the external device 100. It is controlled to be transmitted to.

The user can perform horizontal adjustment of the washing machine 1 by viewing the screen displayed on the external device 100 or by listening to the sound output from the external device 100.

If the washing machine 1 is not in a horizontal state as a result of the determination of the control unit 72 even after the user performs the horizontal adjustment of the washing machine 1, the series of operations according to the horizontal state determination mode are repeatedly controlled, and the washing machine 1 When is leveled, control according to the horizontal state determination mode ends.

According to the washing machine 1 and the control method according to an embodiment of the disclosed invention, when the washing machine 1 is installed, the vibration is detected through the vibration sensor 14 installed inside the washing machine 1 or the external device 100 is By determining the horizontal state of the washing machine 1 based on the sensed vibration of the washing machine 1, there is an effect that can improve the horizontal installation quality of the washing machine (1). In addition, by setting the horizontal state when the washing machine 1 is installed, there is an effect of reducing the occurrence of unnecessary noise.

Furthermore, when the washing machine 1 is installed, information on the horizontal state adjustment of the washing machine 1 may be provided to a user through a smart home service based on the Internet of Things (IoT) system. That is, the roles played by the external device 100 in relation to the horizontal state adjustment of the washing machine 1 in FIGS. 12 to 18 are also performed by other Internet of Things devices capable of communicating with the washing machine 1 in the smart home system. Can be.

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium that stores instructions executable by a computer. Instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform operations of the disclosed embodiments. The recording medium may be embodied as a computer-readable recording medium.

The computer-readable recording medium includes all kinds of recording media storing instructions that can be read by a computer. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, and an optical data storage device.

As described above, the disclosed embodiments have been described with reference to the accompanying drawings. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be practiced in different forms from the disclosed embodiments without changing the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

1: washing machine
11: tub
12: drum
14: vibration sensor
30: water supply unit
70: input unit
72: control unit
76: display unit
77: notification unit
78: communication unit
100: external device

Claims (26)

Tub;
A drum rotatably installed inside the tub;
A motor for rotating the drum;
A vibration sensor that senses the vibration of the tub caused by the rotation of the motor;
An input unit that receives a horizontal state determination mode for determining a horizontal state of the washing machine; And
When the horizontal state determination mode is input, a predetermined amount of water is controlled to be supplied to the tub, and the horizontal state of the washing machine is determined based on vibration data of the washing machine caused by rotation of the drum within the supplied tub. A washing machine comprising a control unit. According to claim 1,
A washing machine further comprising a water supply unit for supplying a predetermined amount of water to the tub. According to claim 1,
The control unit,
A washing machine that controls the drum to rotate clockwise or counterclockwise based on a predetermined number of rotations within the watered tub. According to claim 1,
The vibration sensor,
A washing machine that acquires at least one of a vibration direction or a vibration strength of the washing machine by rotation of the drum. The method of claim 4,
The control unit,
The horizontal state of the washing machine is determined based on at least one of the obtained vibration direction or vibration intensity, and a leg requiring height adjustment among at least one leg provided in the washing machine based on the determined horizontal state of the washing machine Washing machine to determine. The method of claim 4,
Further comprising; a display unit for displaying the horizontal state of the washing machine,
The display unit,
A washing machine that displays at least one of a vibration direction or a vibration intensity of the washing machine obtained by the vibration sensor. The method of claim 6,
The display unit,
A washing machine displaying a leg that requires the height adjustment among the at least one leg . According to claim 1,
The vibration sensor,
A washing machine including an acceleration sensor and fixedly installed on the top of the tub of the washing machine. Tub;
A drum rotatably installed inside the tub;
A motor for rotating the drum;
A communication unit that receives vibration data of the washing machine generated according to the rotation of the motor from an external device; And
When the communication unit receives the horizontal state determination mode input for determining the horizontal state of the washing machine from the external device, it controls the predetermined amount of water to be supplied to the tub, and the rotation by the drum within the watered tub. A washing machine comprising; a control unit for receiving the vibration data of the washing machine from the external device to determine the horizontal state of the washing machine. The method of claim 9,
The control unit,
A washing machine that controls the drum to rotate clockwise or counterclockwise based on a predetermined number of rotations in the watered tub based on the horizontal state determination mode of the washing machine received from the external device. The method of claim 9,
The communication unit,
A washing machine that receives data on at least one of a vibration direction or a vibration intensity of the washing machine by rotation of the drum from the external device. The method of claim 11,
The control unit,
The horizontal state of the washing machine is determined based on the data on at least one of the received vibration direction or vibration intensity, and a leg requiring height adjustment among at least one leg provided in the washing machine is determined based on the determined horizontal state of the washing machine. Washing machine to determine. The method of claim 12,
The communication unit,
A washing machine that transmits data on a horizontal state of the washing machine determined based on data on at least one of the received vibration direction or vibration intensity to the external device. The method of claim 12,
The communication unit,
A washing machine that transmits data on a leg requiring height adjustment among the at least one leg to the external device. Receiving a horizontal state determination mode for determining a horizontal state of the washing machine;
Controlling a predetermined amount of water to be supplied to the tub based on the input level determination mode;
Obtaining vibration data of the washing machine by rotation of the drum in the watered tub;
A washing machine control method for determining a horizontal state of the washing machine based on the obtained vibration data of the washing machine. The method of claim 15,
And controlling the tub to be supplied with a predetermined amount of water. The method of claim 15,
And controlling the drum to rotate clockwise or counterclockwise based on a predetermined number of rotations within the watered tub. The method of claim 15,
Acquiring vibration data of the washing machine,
And acquiring at least one of a vibration direction or a vibration intensity of the washing machine by rotation of the drum. The method of claim 18,
Determining the horizontal state of the washing machine,
It includes; determining the horizontal state of the washing machine based on at least one of the obtained vibration direction or vibration intensity;
And determining a leg requiring height adjustment among at least one leg provided in the washing machine based on the determined horizontal state of the washing machine. The method of claim 18,
Further comprising; displaying the horizontal state of the washing machine,
Further comprising; displaying at least one of the obtained vibration direction or vibration intensity,
And displaying a leg requiring height adjustment among the at least one leg. Receiving a horizontal state determination mode input for determining a horizontal state of the washing machine from an external device;
Controlling a predetermined amount of water to be supplied to the tub based on the received horizontal state determination mode;
Receiving vibration data of the washing machine by rotation of the drum in the watered tub from the external device;
Control method of a washing machine for determining the horizontal state of the washing machine based on the received vibration data of the washing machine. The method of claim 21,
Based on the horizontal state determination mode of the washing machine received from the external device, the control method of the washing machine to control the drum to rotate clockwise or counterclockwise based on a predetermined number of rotations in the watered tub. The method of claim 21,
Receiving the vibration data of the washing machine from the external device,
And receiving data on at least one of a vibration direction or a vibration intensity of the washing machine by rotation of the drum from the external device. The method of claim 23,
Determining the horizontal state of the washing machine,
It includes; determining the horizontal state of the washing machine based on at least one of the received vibration direction or vibration intensity;
And determining a leg requiring height adjustment among at least one leg provided in the washing machine based on the determined horizontal state of the washing machine. The method of claim 24,
And transmitting data on a horizontal state of the washing machine determined based on data on at least one of the received vibration direction or vibration intensity to the external device. The method of claim 24,
And transmitting data on the legs requiring height adjustment among the at least one leg to the external device.

Images