KR100789799B1 - Method and apparatus for displaying laundry quantity of washing machine - Google Patents

Abstract

The present invention relates to a quantity detection display device and a method of a washing machine for displaying a quantity detection guidance message indicating that a quantity is automatically detected when power is applied and an operation button is input. In the method for displaying the quantity detection, when the power is applied, determining whether the user manually sets the washing conditions; and if the user does not manually set the washing conditions, selecting a desired washing course and inputting an operation button. And if the operation button is input, displaying a quantity detection guide message on the liquid crystal display (LCD), detecting a quantity of water, and displaying the water level and detergent amount according to the detected quantity on the liquid crystal display (LCD). Step and the user inputs the detergent with reference to the displayed detergent amount It includes the steps of proceeding the washing process after supplying water to the water level. When the washing machine automatically detects the quantity after applying power to the washing machine, the quantity detection guide message “now sensing quantity” is displayed on the LCD to display the correct amount. By inputting the water level and the amount of detergent accordingly, it is possible to prevent excessive water waste and detergent waste in advance, and at the same time, to maximize the convenience of washing, washing performance and operation efficiency.

Quantity Detection / Display

Description

Quantity detection apparatus and method for washing machine {Method and apparatus for displaying laundry quantity of washing machine}

1 is a block diagram schematically showing the configuration of a washing machine according to the prior art.

2 is a flowchart showing the operation of the washing machine according to the prior art.

3 is a block diagram showing the configuration of a washing machine according to the present invention.

4 is a flowchart illustrating a method of detecting a quantity of washing in a washing machine according to the present invention.

Explanation of symbols for main parts of the drawings

10: PC 20: Interface

30: key input unit 40: voltage detection unit

50: storage unit 60: control unit

70: load driver 80: liquid crystal display (LCD)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly, to an apparatus and a method for detecting a quantity of washing machine that can inform a user of a quantity sensing stroke of a washing machine.

In general, a washing machine is a machine that washes laundry by washing, rinsing, and dehydrating according to a predetermined algorithm. In order to perform each stroke, the washing machine must be supplied with water to an appropriate level. Perform a quantity detection to detect the amount of.

In general, a quantity detection sensor is applied to detect a quantity, and the quantity detection sensor is composed of a pair of magnets and a coil attached to a clutch pulley.

The principle of operation and dose detection of the dose detection sensor configured as described above is as follows.

First, when a user inputs a washing command, the washing machine rotates a pulsator alternately to the left and right for a predetermined time in order to perform a quantity detection to rotate the laundry in the washing tank.

Accordingly, the magnet is rotated and a pulse is generated by changing the electromotive force of the coil below. At this time, the rotation speed of the pulsator is changed according to the amount of laundry in the washing tank, and the number of generated pulses is also changed.

In other words, the smaller the amount of the laundry, the faster the rotational speed to change the coil electromotive force often generates a large number of pulses, the larger the amount of the laundry, the lower the rotational speed is to generate a small number of pulses. Therefore, it is possible to detect the amount of laundry, that is, the amount of laundry according to the number of pulses generated.

Hereinafter, with reference to the accompanying drawings will be described in more detail the configuration and operation of the washing machine according to the prior art.

1 is a block diagram schematically showing the configuration of a washing machine according to the prior art, Figure 2 is a flowchart showing the operation of the washing machine according to the prior art.

First, as shown in FIG. 1, a washing machine according to the related art includes a key input unit 1 for inputting a user's request command, a voltage sensing unit 2 for monitoring a change in voltage, and the key input unit. (1) When the operation button is input through the control unit (3) for controlling the stroke of the washing machine according to whether the voltage detected by the voltage sensing unit 2, the motor (not shown) according to the control signal of the control unit (3) Operation according to a function selected through the key input unit 1 according to a load driver 4 for driving a load such as a water supply valve (not shown), a drain valve (not shown), and a control signal of the controller 3. It is composed of a display section 5 for displaying the status. Here, the display unit 5 is composed of 88 segments for displaying the washing time remaining, and a plurality of light emitting diodes (LEDs).

In the conventional washing machine configured as described above, when a user puts laundry into a washing tank, applies power, and inputs a washing command by pressing a predetermined key, the control unit 3 applies a control signal to the load driving unit 4 to supply a motor. Rotate (not shown) alternately from side to side for a period of time.

Accordingly, a certain number of pulses are output in proportion to the amount of laundry in the washing tank, which is input to the control unit 3, and the control unit 3 counts the number of input pulses.                         

Water level Pulses Go 30 to 52 medium 53 to 77 that 78-98 small  99 to 119 at least       120-

Therefore, the controller 3 compares the measured number of pulses with the level setting value according to the pre-stored pulse number, sets the corresponding level, performs water supply by the set level, and then proceeds to the next stroke according to the preset washing algorithm. .

When the operation of the washing machine according to the prior art is described with reference to Table 2, first, the power is turned on (S1).

The user selects a desired washing course and inputs an operation button (S2-S3).

When the operation button is input, it detects the quantity in the washing tank (S4).

Subsequently, water supply according to the detected amount of water is performed (S5).

After performing water supply according to the detected amount of water proceeds to washing → rinsing → dehydration in order (S6-S8).

As described above, the washing machine according to the related art has the following problems.

First, since the display unit is configured with LEDs and cannot display the guide message according to the detection of the quantity, the user cannot accurately recognize the quantity detection.

Secondly, the user does not recognize that the quantity is automatically detected, and the water level is arbitrarily determined, and the excessive amount of detergent is added, resulting in waste of washing water and detergent.

Third, since a quantity detection stroke is made in a state where water is not supplied, a user who does not know this determines that a washing machine malfunctions and raises a claim.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a quantity detection display device and method of a washing machine for displaying a quantity detection guide message indicating that a quantity is automatically detected when power is applied and an operation button is input. The purpose is to provide.

In order to achieve the above object, a quantity detection display device for a washing machine according to the present invention includes an interface for exchanging data with the outside, a key input unit for setting a washing course and washing conditions desired by the user, a washing machine operation algorithm, and a washing course. And a storage unit for storing a quantity detection guide message, a liquid crystal display (LCD) for displaying that a quantity is detected during selection of a desired course through the key input unit, and an operation button is input, and the key input unit. The washing operation corresponding to the operation command of the user is made, and when the operation button is input in the automatic washing mode, the quantity detection guide message is controlled to be displayed on the LCD, and according to the user's request, data communication with the PC is performed. A control unit for controlling and driving the load according to the control signal of the control unit To be configured to include a load driving unit that controls has its features.

The quantity detection display method of the washing machine according to the present invention for achieving the above object is a quantity detection display method of the washing machine provided with a liquid crystal display (LCD), if the power is applied to determine whether the user manually set the washing conditions And if the user does not set the washing conditions manually, selecting a desired washing course and inputting an operation button, and when the operation button is input, a quantity detection guide message is displayed on the LCD. Detecting a quantity of water, displaying a level and a detergent amount according to the detected quantity on the liquid crystal display (LCD), and a user inputs the detergent with reference to the displayed amount of detergent and supplies water to the level It is characterized by including the step of proceeding the washing stroke after.

Hereinafter, referring to the accompanying drawings, a description will be made in more detail of the apparatus and method for detecting a quantity of washing machine according to the present invention.

Figure 3 is a block diagram showing a quantity detection display device of the washing machine according to the present invention, Figure 4 is a flowchart showing a quantity detection display method of the washing machine according to the present invention, Figure 5 is a quantity detection display method according to the present invention 1 is a view showing an embodiment.

As shown in FIG. 3, an apparatus for detecting a quantity of a washing machine according to the present invention includes an interface 20 for performing a data modulation operation to exchange data with a connected PC 10 according to an RS-232C communication standard. A key input unit 30 for selecting a washing course and a washing function desired by the user, a voltage sensing unit 40 for monitoring a voltage change, a washing course, washing guide information and a quantity detection guide message for each course A storage unit 50 for storing, a liquid crystal display (LCD) 80 for displaying a washing course and a quantity detection guide message selected through the key input unit 30, and the LCD 80 The control unit 60 for outputting a control signal to drive the load according to the washing conditions set by the user through the key input unit 30 with reference to the washing guide information displayed on the control unit of the control unit 60 In accordance with the present invention, a load driving unit 70 which controls driving of loads such as a motor (not shown), a water supply valve (not shown), and a drain valve (not shown) is provided.

In the washing machine configured as described above, when a user inputs a power key through the key input unit 30, selects a desired washing course, and inputs an operation button, the stored amount of water detection guide message from the storage unit 50 is displayed on the LCD (80). ) Is displayed and quantity detection is performed at the same time.

That is, when a user inputs an operation button, the controller 60 applies a control signal to the load driver 70 to rotate the motor (not shown) alternately left and right for a predetermined time.

Accordingly, a predetermined number of pulses are output from the voltage sensing unit 40 in proportion to the amount of laundry in the washing tank, which is input to the control unit 60, and the control unit 60 counts the number of input pulses.

And, by displaying the liquid level and detergent amount according to the detected amount on the LCD 80, the user inputs the amount of detergent with reference to this amount, and if the detergent is input, water is supplied to the corresponding level, and then according to the selected course Proceed with the laundry administration.

Referring to FIG. 4, the washing machine according to the present invention configured as described above will be described with reference to FIG. 4. First, when power is applied, it is determined whether a user manually sets washing conditions (S11-S12).

Subsequently, the determination result (S12), if the user does not set the washing conditions manually, select the desired washing course, and inputs the operation button (S13-S14).

On the other hand, if the determination result (S12), the user manually set the washing conditions, the water supply, washing, rinsing and dehydration process according to the water level, washing time, rinsing frequency, dehydration time.

When the operation button is input, a quantity detection guide message of 'capacity sensing' is displayed on the LCD and the quantity is detected (S15).

Here, the quantity detection guide message displayed on the LCD displays a figure that the quantity is being detected together with the message that the quantity is being detected as shown in FIG. 5.

Then, the water level and the detergent amount according to the detected amount of water are displayed (S16).

When the user inputs the detergent with reference to the displayed detergent amount, water is supplied to the corresponding level (S17).

When the water supply is completed to the corresponding water level, the washing administration proceeds in the order of washing → rinsing → dehydration stroke (S18-S0).

As described above, the apparatus and method for detecting a quantity of washing machine according to the present invention automatically detects a quantity of power in a washing machine when power is applied and a user manually selects a desired course without additional setting values and inputs an operation button. At this time, the user can recognize that the current amount of the detection of the state by simultaneously displaying a picture that the detection of the dose with the message that the detection of the dose on the LCD.

Then, the water level and the detergent amount are displayed according to the detected amount of water, and the user inputs an appropriate amount of detergent with reference to the amount of water, and when the detergent is added, water is automatically started and the entire washing process is performed after washing, rinsing and dehydrating. To finish.

As described above, the quantity detection display device and method of the washing machine according to the present invention have the following effects.

First, when the washing machine automatically detects the quantity after powering on the washing machine, by displaying the quantity detection guide message "During quantity detection" on the LCD, the user can be recognized as a normal state, not a malfunction. Can be.

Second, by displaying the water level and the detergent amount according to the detected amount of water, the amount of detergent that is most suitable for the amount of water can be input, thus saving the detergent.

Third, by displaying the quantity detection guide message to the user, by inputting the correct water level and the amount of detergent accordingly, it is possible to prevent excessive water waste and detergent waste in advance and at the same time maximize the convenience of washing, washing performance and operation efficiency.

Claims (4)

An interface unit for exchanging data with the outside; A key input unit for setting a washing course and washing conditions desired by the user; A storage unit for storing a washing machine operation algorithm, a washing course, and a quantity detection guide message; A liquid crystal display (LCD) for selecting a desired course through the key input unit and displaying that a quantity is detected when an operation button is input; The washing operation corresponding to the operation command of the user through the key input unit is made, and when the operation button is input in the automatic washing mode, the quantity detection guide message is controlled to be displayed on the LCD, and the PC is connected to the interface unit according to the user's request. A control unit controlling data communication with the control unit; And, Washing machine comprising a load driver for controlling the driving of the load according to the control signal of the controller. A quantity detection display method of a washing machine having a liquid crystal display (LCD), Determining whether the user selects the automatic washing mode when power is applied; Selecting, by the user, an automatic washing mode and inputting an operation button; Displaying a quantity detection guide message on the liquid crystal display (LCD) when the operation button is input, and detecting a quantity of quantity; Displaying the liquid level and the detergent amount according to the detected quantity on the liquid crystal display (LCD); And, If the user inputs the detergent with reference to the displayed detergent amount, the step of automatically washing the water after the water supply proceeds to the water level; proceed with the washing stroke, the amount detection display method of the washing machine comprising a. The method of claim 2, If the user manually inputs the washing conditions without selecting the automatic washing mode, the capacity detection display method of the washing machine, characterized in that for performing water supply, washing, rinsing and dehydration according to the washing conditions. The method of claim 2, The quantity detection guide message is a quantity detection display method of the washing machine, characterized in that the character and the picture that the quantity is detected.

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