KR20230125554A - Electronic apparatus and control method thereof - Google Patents

Abstract

Disclosed is an electronic device that provides user interface (UI) information that guides the cleaning of a dust collection filter based on noise generated in the dust collection filter and the frequency of voltage drops occurring in a voltage supply that supplies voltage to the dust collection filter. The disclosed electronic device comprises: a dust collection filter; a voltage supply unit which applies voltage to the dust collection filter; a microphone placed within critical distance from the dust collection filter; and a processor. The processor identifies the dust collection filter as needing cleaning if a sound peak whose magnitude of the noise sound acquired through the microphone is greater than or equal to a first threshold and a voltage drop in the voltage supply where the voltage decreases beyond a preset value occurs more than a threshold number of times within a first threshold time, and may provide UI information that guides cleaning of the dust collection filter.

Description

Electronic device and its control method { ELECTRONIC APPARATUS AND CONTROL METHOD THEREOF }

The present disclosure relates to an electronic device and a control method thereof, and more particularly, to an electronic device for guiding cleaning of a dust collection filter mounted in an electronic device and a control method thereof.

In recent years, household air purifiers have been generally spread and used. In particular, due to the recent spread of the coronavirus (COVID-19), interest in air purifiers using electrostatic precipitate filters that can easily collect fine particles such as viruses has increased.

Existing air purifiers perform an air cleaning function by collecting fine particles by an electric field generated by applying voltage to the dust collecting filter, but when a certain amount of dust accumulates on the dust collecting filter, there is a gap between the anode and the cathode included in the dust collecting filter. There is a problem in that insulation is destroyed and corona discharge occurs.

When corona discharge occurs, sparks accompanied by noise are generated between the dust collection filters, and the noise generated here can be mistaken for a failure of the electronic device, which can make the user of the electronic device feel anxious.

Accordingly, there has been a continuous demand for an electronic device for guiding cleaning of the dust collecting filter when noise generated between the dust collecting filters is generated at a critical frequency or more.

The present disclosure is in accordance with the above-mentioned needs, and UI (User Interface) information for guiding the cleaning of the dust collection filter based on the occurrence frequency of the voltage drop generated in the voltage supply unit supplying the voltage to the dust collection filter and the noise generated in the dust collection filter. It is to provide an electronic device that provides and a control method thereof.

An electronic device according to an embodiment of the present invention for achieving the above object is a dust collecting filter, a voltage supply unit for applying a voltage to the dust collecting filter, a microphone disposed within a critical distance from the dust collecting filter, and acquisition through the microphone. When a sound peak in which the magnitude of the generated noise sound is equal to or greater than a first threshold value and a voltage drop in which the voltage is reduced by a predetermined value or more in the voltage supply unit occurs more than a threshold number of times within a first threshold time, it is identified that the dust collection filter needs cleaning, , a processor providing user interface (UI) information for guiding cleaning of the dust collection filter.

Here, the processor may identify that the voltage drop has occurred when the voltage of the voltage supplying unit decreases to a value greater than or equal to the predetermined value within a second threshold time.

In addition, the processor may acquire the noise sound through the microphone when a voltage supplied to the dust collection filter through the voltage supply unit reaches a threshold voltage.

In addition, the processor identifies a noise sound having a peak value among noise sounds received through the microphone for a predetermined time period, and the loudness of the noise sound is obtained before the third threshold time and after the third threshold time. If the size of each noise sound is greater than the second threshold value, it may be identified that the sound peak has occurred.

Here, the processor determines that the length of a time interval in which a noise sound having a loudness equal to or greater than a threshold ratio is identified based on the loudness of the noise sound having the peak value is less than the critical length, and the loudness of the noise sound is before the third threshold time. and when the loudness of each noise sound obtained after the third threshold time is equal to or greater than the second threshold value, it may be identified that the sound peak has occurred.

In addition, when it is identified that the dust collection filter needs cleaning, the processor may provide UI information for guiding cleaning of the dust collection filter after controlling the voltage supply unit to stop supplying the voltage to the dust collection filter.

The device may further include a display, and the processor may provide UI information for guiding cleaning of the dust collection filter through the display.

The processor may further include a communication interface, and the processor may control the communication interface to transmit UI information for guiding cleaning of the dust collection filter to a user terminal.

Also, the voltage supply unit is implemented as a high voltage power supply (HVPS), and the voltage drop may be an HVPS cut-off voltage.

Meanwhile, a control method of an electronic device according to an embodiment of the present invention includes acquiring a noise sound through a microphone disposed within a threshold distance from a dust collecting filter, a sound peak having a magnitude of the noise sound greater than or equal to a first threshold value, and the When a voltage drop in which a voltage is reduced by a predetermined value or more occurs in a voltage supply unit for applying voltage to the dust collection filter more than a threshold number of times within a first threshold time, identifying that the dust collection filter needs cleaning and cleaning the dust collection filter A step of providing user interface (UI) information to guide may be included.

Here, in the step of identifying that cleaning is necessary, when the voltage of the voltage supply unit that is greater than or equal to the preset value is reduced within a second threshold time, it may be identified that the voltage drop has occurred.

In the acquiring of the noise sound, the noise sound may be obtained through the microphone when a voltage supplied to the dust collecting filter through the voltage supply unit reaches a threshold voltage.

In addition, the identifying that cleaning is necessary may include identifying a noise sound having a peak value among noise sounds received through the microphone for a predetermined time period, and the loudness of the noise sound before the third threshold time and above the and identifying that the sound peak has occurred if the loudness of each noise sound acquired after a third threshold time is greater than the second threshold value or more.

Here, in the step of identifying that cleaning is necessary, the length of a time period in which a noise sound having a loudness greater than or equal to a threshold ratio is identified is less than a critical length based on the loudness of the noise sound having the peak value, and the loudness of the noise sound is When the loudness of each noise sound obtained before and after the third threshold time is greater than the second threshold value, it may be identified that the sound peak has occurred.

In the providing of the UI information, when it is identified that the dust collection filter needs to be cleaned, supply of voltage to the dust collection filter is stopped, and then UI information for guiding cleaning of the dust collection filter may be provided.

In the providing of the UI information, UI information for guiding cleaning of the dust collection filter may be provided through a display.

In the providing of the UI information, UI information for guiding cleaning of the dust collection filter may be transmitted to the user terminal.

Also, the voltage supply unit is implemented as a high voltage power supply (HVPS), and the voltage drop may be an HVPS cut-off voltage.

According to various embodiments of the present disclosure, user convenience is improved because UI information for guiding cleaning of the dust collection filter is provided following noise generation due to corona discharge.

1 is a diagram schematically illustrating an operation of an electronic device according to an embodiment of the present disclosure.
2 is a block diagram for explaining the configuration of an electronic device according to an embodiment of the present disclosure.
3 is a diagram for explaining a noise sound acquisition operation of an electronic device according to an embodiment of the present disclosure.
4 is a diagram for explaining a sound peak identification operation of an electronic device according to an embodiment of the present disclosure.
5 is a diagram for explaining a voltage drop identification operation of an electronic device according to an embodiment of the present disclosure.
6 is a flowchart for generally describing an operation of an electronic device according to an embodiment of the present disclosure.
7A and 7B are diagrams for explaining a method of providing UI information of an electronic device according to an embodiment of the present disclosure.
8 is a block diagram for specifically explaining the configuration of an electronic device according to an embodiment of the present disclosure.
9 is a flowchart illustrating a control method according to an embodiment of the present disclosure.

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings.

The terms used in the embodiments of the present disclosure have been selected from general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. . In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the disclosure. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

In the present disclosure, expressions such as “has,” “can have,” “includes,” or “can include” indicate the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

The expression at least one of A and/or B should be understood to denote either "A" or "B" or "A and B".

Expressions such as "first," "second," "first," or "second," used in the present disclosure may modify various elements regardless of order and/or importance, and may refer to one element as It is used only to distinguish it from other components and does not limit the corresponding components.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that an element may be directly connected to another element, or may be connected through another element (eg, a third element).

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprise" or "consist of" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other It should be understood that the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In the present disclosure, a “module” or “unit” performs at least one function or operation, and may be implemented in hardware or software or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" are integrated into at least one module and implemented by at least one processor (not shown), except for "modules" or "units" that need to be implemented with specific hardware. It can be.

1 is a diagram schematically illustrating an operation of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 1 , the electronic device 100 may be implemented as a device (eg, an air purifier) that performs an air cleaning function, but is not limited thereto, and the electronic device 100 is a separate device interlocked with the air purifier. may be implemented. For example, the electronic device 100 may be a server, a TV, a desktop PC, a laptop computer, a set top box (STB), a smart phone, a tablet PC, or an air conditioner.

When the electronic device 100 is implemented as an air purifier, the electronic device 100 may perform an air purifying function by collecting airborne particles included in the air. In collecting airborne particles, sparks 20 due to corona discharge may be generated in the dust collecting filter included in the electronic device 100 . These sparks 20 may be accompanied by noise 30 that may cause discomfort to the user 10, and the user 10 believes that an abnormality has occurred in the function of the electronic device 100 through the noise 30. can be mistaken

The electronic device 100 according to an example detects the noise 30 according to the spark 20 generated in the dust collecting filter, and when the frequency of occurrence of the detected noise 30 is greater than or equal to a critical frequency, the user 10 provides the dust collecting filter. UI information 40 for guiding the cleaning of may be provided.

The user who has been provided with the UI information 40 can clean the dust collecting filter according to the guide of the UI information 40, and since the spark 20 that has previously occurred does not occur for a while in the cleaned dust collecting filter, the user 10 ) may increase the satisfaction obtained when using the electronic device 100.

2 is a block diagram for explaining the configuration of an electronic device according to an embodiment of the present disclosure.

According to FIG. 2 , the electronic device 100 may include a dust collection filter 110 , a voltage supply unit 120 , a microphone 130 and a processor 140 .

The dust collection filter 110 is a component for collecting suspended particles in the air. For example, the dust collection filter 110 may receive a voltage supplied by the voltage supply unit 120 to collect airborne particles such as dust, bacteria, and viruses, but is not limited thereto.

In addition, the dust collection filter 110 may include a plurality of discharge yarns and a plurality of metal plates. According to an example, an electric field may be formed due to a potential difference between a discharger included in the dust collecting filter 110 and a metal plate, and suspended particles in the air are moved toward the metal plate by the generated electric field, thereby increasing the dust collecting filter 110. of floating particle trapping function can be achieved.

The voltage supply unit 120 is a component that applies a voltage to the dust collecting filter 110 . Specifically, the voltage supply unit 120 may be connected to the dust collection filter 110 and the processor 140 to apply a voltage to the dust collection filter 110 under the control of the processor 140 . For example, the voltage supply unit 120 may apply a high voltage to a plurality of discharge yarns included in the dust collecting filter 110 under the control of the processor 140 and control the plurality of metal plates to serve as a ground. It is not limited.

In this specification, the difference between the voltages applied to the discharger and the metal plate is expressed as 'the operating voltage of the dust collection filter 110'.

The voltage supply unit 120 according to an example may be implemented as a high voltage power supply (HVPS), but is not limited thereto.

The microphone 130 is a component that receives a sound signal. Specifically, the microphone 130 is a configuration that collectively refers to a device that receives a sound wave and generates a current of the same waveform. The processor 140 according to an example may convert the received sound signal into a digital signal based on the current of the waveform generated by the microphone 130 .

The microphone 130 may be disposed within a critical distance from the dust collection filter 110, and may receive a user's voice related to driving of the electronic device 100 and a sound signal corresponding to noise generated from the dust collection filter 110. .

When the microphone 130 receives a user voice, the processor 140 according to an example may control the voltage supply unit 120 so that the electronic device 100 is driven based on the received user voice, and the microphone 130 When receiving noise, UI information for guiding cleaning of the dust collecting filter 110 may be provided based on the frequency of occurrence of the identified noise.

The processor 140 controls the overall operation of the electronic device 100 . Specifically, the processor 140 may be connected to each component of the electronic device 100 to control the overall operation of the electronic device 100 . For example, the processor 140 may be connected to the voltage supply 120 and the microphone 130 to control the operation of the electronic device 100 .

According to an embodiment, the processor 140 includes a digital signal processor (DSP), a microprocessor, a central processing unit (CPU), a micro controller unit (MCU), and a micro processing unit (MPU). unit), Neural Processing Unit (NPU), controller, application processor (AP), etc., but is described as processor 140 in this specification.

The processor 140 may be implemented as a system on chip (SoC), large scale integration (LSI), or may be implemented as a field programmable gate array (FPGA). In addition, the processor 140 may include volatile memory such as SRAM.

The processor 140 according to an embodiment of the present disclosure may obtain noise sound generated from the dust collecting filter 110 through the microphone 130 . Here, the processor 140 detects noise generated from the dust collection filter 110 through the microphone 130 when the voltage supplied to the dust collection filter 110 through the voltage supply unit 120 reaches a threshold voltage (eg, operating voltage). It can be obtained, but is not limited thereto.

Also, the processor 140 may acquire noise sound through the microphone 130 in units of preset time. For example, the processor 140 may obtain a noise sound through the microphone 130 in units of 1 minute, and may acquire a plurality of noise sound sets having a 1-minute portion, but is not limited thereto.

The processor 140 may identify a sound peak having a loudness of the obtained noise sound greater than or equal to a first threshold value. For example, the processor 140 may identify a sound peak having a loudness of 4 dB or more of the acquired noise sound.

In addition, the processor 140 identifies a noise sound having a peak value among the noise sounds received through the microphone 130 for a predetermined time period, and the loudness of the noise sound is obtained before and after the third threshold time. If the size of each noise sound is greater than the second threshold value, it may be identified that a sound peak has occurred. For example, the processor 140 identifies a noise sound having a peak value in each noise sound set having a duration of 1 minute, and the size of the identified noise sound is the size of each noise sound obtained before and after the third threshold time. If the size is greater than the second threshold value, it may be identified that a sound peak has occurred in the corresponding noise sound set, but is not limited thereto.

Here, the processor 140 may identify a time interval in which a noise sound having a loudness equal to or greater than a threshold ratio is identified based on the loudness of the noise sound having a peak value in each noise sound set. If the length of the identified time interval is less than the threshold length and the magnitude of the noise sound is greater than the magnitude of each noise sound obtained before and after the third threshold time by a second threshold value or more, the processor 140 generates a sound peak in the corresponding noise sound set. can be identified as occurring.

On the other hand, when a spark occurs while corona discharge occurs in the dust collection filter 110, a voltage lower than the operating voltage of the dust collection filter 110 is instantaneously applied to one terminal (eg, an output terminal) included in the voltage supply unit 120. can be observed The processor 140 may identify a voltage drop in which a voltage greater than or equal to a predetermined value is reduced based on the operating voltage of the dust collection filter 110 in the voltage supply unit 120 . When the voltage supply unit 120 is implemented as a high voltage power supply (HVPS), the voltage drop identified by the processor 140 may be the HVPS cut-off voltage observed at one terminal of the voltage supply unit 120. .

Here, the processor 140 may identify that a voltage drop has occurred in the voltage supply unit 120 when the voltage of the voltage supply unit 120 is reduced to a predetermined value or more within the second threshold time. For example, the processor 140 may identify a voltage drop based on the measurement of a voltage that is reduced by 1.0 kV or more from the voltage supply unit 120 within 0.1 second from the operating voltage of the dust collection filter 110, but is not limited thereto. no.

The processor 140 may identify that the dust collecting filter 110 needs to be cleaned when a sound peak and a voltage drop occur more than a threshold number of times within a first threshold time. When only a sound peak is identified without a voltage drop, the corresponding sound peak may not be caused by a spark generated in the dust collection filter 110, and when only a voltage drop is identified without a sound peak, a spark corresponding to the voltage drop may cause discomfort to the user. Since it generates noise that is not given, the necessity of cleaning the dust collection filter 110 may be low. Accordingly, the processor 140 may identify that the dust collection filter 110 needs to be cleaned only when both the sound peak and the voltage drop occur more than a threshold number of times within the first threshold time.

For example, the processor 140 may identify that the dust collection filter 110 needs to be cleaned when sound peaks and voltage drops occur three or more times within 15 minutes, but is not limited thereto.

Having identified that the dust collection filter 110 needs cleaning, the processor 140 may provide user interface (UI) information for guiding cleaning of the dust collection filter 110 . The UI information may include, but is not limited to, a notification message notifying that the dust collection filter 110 needs to be cleaned and information instructing a cleaning method of the dust collection filter 110 .

UI information may be provided through a display provided in the electronic device 100 or through a user terminal linked with the electronic device 100 . Here, the processor 140 may provide UI information for guiding cleaning of the dust collection filter 110 after controlling the voltage supply 120 to stop supplying the voltage to the dust collection filter 110 .

3 is a diagram for explaining a noise sound acquisition operation of an electronic device according to an embodiment of the present disclosure.

According to FIG. 3 , the dust collection filter 110 may include a discharge yarn 111 and a plurality of metal plates 112 and 113 . The voltage supply unit 120 may apply voltage to the discharge yarn 111 and the plurality of metal plates 112 and 113 under the control of the processor 140, and accordingly, the discharge yarn 111 and the plurality of metal plates ( 112 and 113), an electric field may be formed.

According to an example, the airborne particles 301 introduced into the electronic device 100 are discharged from the plurality of metal plates 112 and 113 by an electric field formed between the discharger 111 and the plurality of metal plates 112 and 113. ) direction and collected, and the collected particles 302 may continue to accumulate as the electronic device 100 is continuously operated.

When the collected particles 302 accumulate above a critical level, the plurality of metal plates 112 and 113 and the discharge sand 111 contact each other or the plurality of metal plates 112 and 113 are contacted by the accumulated particles 302. ) and the discharge yarn 111 becomes within the critical distance, causing a corona discharge in which overcurrent flows through the accumulated particles 302, and thus sparks 20 may occur.

In this case, the processor 140 may acquire the noise sound 30 generated together with the spark 20 through the microphone 130 disposed within a critical distance from the dust collecting filter 110 .

4 is a diagram for explaining a sound peak identification operation of an electronic device according to an embodiment of the present disclosure.

The processor 140 may analyze the noise sound 400 acquired through the microphone 130 to determine whether the number of sound peaks included in the noise sound 400 is greater than or equal to a threshold number of times. Here, the sound peak may be a point having a sound level greater than the second threshold value or greater than the level of each noise sound obtained before and after the third threshold time in the graph corresponding to the noise sound 400 .

In the case of sparks generated by corona discharge in the dust collecting filter 110, since noise is generated in a very short time interval and then extinguished, the processor 140 obtains the obtained before and after the third critical time, respectively, based on a specific point in time. It may be identified that a sound peak due to a spark has occurred at a specific time point having a sound level greater than the noise level by a second threshold value or more.

According to FIG. 4 , a sound peak may be a point having a sound level 6 dB or more greater than the level of each noise sound acquired 1 second before and after 411 and 412 in the graph. Since the 1-second point 401 and the 5-second point 403 do not have a sound level greater than 6 dB or more than the noise sound acquired 1 second before and after each point, the processor 140 controls the 1-second point 401 and 5 The focus point 403 may not be identified as a sound peak.

On the other hand, the difference 421 between the sound level (5 dB) at the 3-second point 402 and the noise level (-3 dB) obtained at 2 seconds, 1 second before the corresponding point 402 (411), and the 3-second point ( Since the difference 422 between the sound level (5 dB) of 402 and the level of noise (-1 dB) obtained 4 seconds after 1 second from the point 402 (412) is greater than or equal to 6 dB, the processor 140 calculates 3 A focus point 402 can be identified as a sound peak. Similarly, the processor 140 may also identify the 7 second point 404 as a sound peak.

Here, the processor 140 may identify a time interval in which a noise sound having a loudness equal to or greater than a threshold ratio is identified based on the loudness of the noise sound having a peak value. For example, the processor 140 may perform a section 430 in which a noise sound having a loudness (4dB) of 80% or more ratio based on the loudness (5dB) of the noise sound corresponding to the 3-second point 402 having a peak value is identified. ) can be identified.

In addition, the processor 140 may identify that a sound peak has occurred at a corresponding point 402 when the length of the identified section 430 is less than the critical length. For example, if the length of the identified section 430 is less than 1 second, the processor 140 may identify that a sound peak occurs at the 3-second point 402 , but is not limited thereto.

Above, the processor 140 identifies as a sound peak only a point having a sound loudness greater than the second threshold value or greater than the loudness of each noise sound obtained before and after the third threshold time (411, 412) in the graph 400 However, it is not limited thereto, and the processor 140 may identify that sound peaks occur at points 402 and 404 where the noise sound 400 has a first threshold value (eg, 4 dB) or more.

Also, the processor 140 may identify, as a sound peak, a point in the graph 400 having a sound level greater than a second threshold value (eg, 6 dB) greater than the level of a noise sound obtained before a threshold time.

For example, since the difference (421) between the sound level (5dB) at the 3-second point 402 and the noise level (-3dB) obtained 2 seconds ago (411) 1 second from the point 402 is greater than 6dB, , the processor 140 may identify the 3 second point 402 as a sound peak. Similarly, the processor 140 may also identify the 7 second point 404 as a sound peak.

5 is a diagram for explaining a voltage drop identification operation of an electronic device according to an embodiment of the present disclosure.

The processor 140 may identify that a voltage drop has occurred in the voltage supply unit 120 when the voltage supply unit 120 decreases by a predetermined value or more within the second threshold time. For example, the processor 140 may identify a voltage drop based on the measurement of a voltage that is 1.0 kV or more lower than the operating voltage of the dust collecting filter 110 within 0.1 second from the voltage supply unit 120 .

According to FIG. 5 , an event 500 in which a maximum voltage value of 2.0 kV decreases based on the driving voltage (5.5 kV) of the dust collection filter 110 may occur at the 3 second point. If the spark 20 of the dust collection filter 110 occurs at the 3 second point, a voltage reduction event 500 due to the spark 20 is observed at one terminal (eg, an output terminal) included in the voltage supply unit 120 It can be. In this case, if the duration of the voltage reduction event 500 is longer than the second threshold time, the voltage reduction event 500 may not be caused by spark generation, so the processor 140 determines that the voltage reduction event 500 is the second threshold time. It can be identified that a voltage drop has occurred in the voltage supply unit 120 only when it occurs within the critical time.

The processor 140 determines that the time interval 501 between the time when the voltage decrease event 500 starts and the time when the voltage decrease event 500 ends is within 0.1 second, and the lowest voltage corresponding to the voltage decrease event 500 ( 3.5 kV) and the operating voltage (5.5 kV) of the dust collecting filter 110. Based on the fact that the difference 502 is 1.0 kV or more, it can be identified that the voltage drop occurred at the 3-second point.

Summarizing the contents described in FIGS. 4 and 5, the processor 140 identifies that the spark 20 of the dust collection filter 110 has occurred at the 3 second point where both the sound peak and the voltage drop occur, and similarly to the 3 second point. It is possible to identify whether there is an additional point where the spark 20 is generated. In addition, the processor 140 may provide UI information for guiding cleaning of the dust collection filter 110 by identifying that the dust collection filter 110 needs cleaning when it is identified whether sparks have occurred more than a threshold number of times within the first threshold time. there is.

On the other hand, the processor 140 identifies that the spark 20 has not occurred at the 7-second point where the sound peak is identified but the voltage drop is not identified, and in the process of identifying whether sparks have occurred more than a threshold number of times within the first threshold time The sound peak occurring at the 7 second point may not be considered.

6 is a flowchart generally illustrating an operation of an electronic device according to an embodiment of the present disclosure.

The electronic device 110 may apply a voltage to the dust collecting filter 110 based on a user command related to the start of operation of the electronic device 100 or achievement of a preset condition for starting an operation (S610). For example, the processor 140 may apply a voltage to the dust collection filter 110 through the voltage supply unit 120 (S611).

When it is identified that the voltage applied to the dust collecting filter 110 has reached the preset operating voltage of the dust collecting filter 110 (S612), the processor 140 may start a noise sound acquisition operation (S620). Specifically, the processor 140 may activate the microphone 130 when the voltage applied to the dust collection filter 110 reaches the operating voltage (S621). In addition, the processor 140 may obtain sound data including noise generated from the dust collection filter 110 through the microphone 130 (S622).

The processor 140 may generate time series sound data based on the acquired sound (S623). Here, the time-series sound data may be expressed in the form of a graph having a time axis and a sound magnitude axis as two axes, but is not limited thereto.

Subsequently, the processor 140 may determine whether cleaning of the dust collection filter 110 is required (S630). For example, the processor 140 may identify whether the sound peak identified in the time series sound data and the voltage drop identified in the voltage supply unit 120 occur more than a threshold number of times (S631). According to one example, the processor 140 may determine whether cleaning of the dust collecting filter 110 is necessary based on whether sound peaks and voltage drops occur three or more times for 15 minutes, but the present invention is not limited thereto.

If it is identified that the sound peak and voltage drop have occurred more than a threshold number of times (S631: Y), the processor 140 may provide UI information for guiding cleaning of the dust collection filter 110 (S640). Specifically, the processor 140 may stop supplying voltage to the dust collecting filter 110 prior to providing UI information (S641).

Subsequently, the processor 140 may generate guide UI information including a notification message indicating that the dust collection filter 110 needs to be cleaned and information indicating a cleaning method of the dust collection filter 110 (S642).

Finally, the processor 140 may provide a UI for guiding cleaning of the dust collection filter 110 through a display provided in the electronic device 100 or a user terminal interlocked with the electronic device 100 (S643).

7A and 7B are diagrams for explaining a method of providing UI information of an electronic device according to an embodiment of the present disclosure.

According to FIG. 7A , the electronic device 100 may further include a display 150. Also, the processor 140 may provide UI information 701 for guiding cleaning of the dust collection filter 110 through the display 150 . The UI information 701 may include, but is not limited to, a notification message notifying that the dust collection filter 110 needs to be cleaned and information instructing a cleaning method of the dust collection filter 110 .

According to FIG. 7B , the electronic device 100 may further include a communication interface. The electronic device 100 may perform a function related to air cleaning by interworking with the user terminal 200 . Here, the user terminal 200 may be a TV, desktop PC, notebook, smart phone, tablet PC, etc., but is not limited thereto.

The processor 140 may control the communication interface to transmit UI information for guiding cleaning of the dust collection filter 110 to the user terminal 200, and the user terminal 200 receiving the UI information from the electronic device 100 may provide a UI 702 for guiding cleaning of the dust collection filter 110 based on UI information.

8 is a block diagram for specifically explaining the configuration of an electronic device according to an embodiment of the present disclosure.

According to FIG. 8 , the electronic device 100 includes a dust collection filter 110, a voltage supply unit 120, a microphone 130, a processor 140, a display 150, a communication interface 160, and a speaker 170. do. Among the components shown in FIG. 8 , detailed descriptions of components overlapping those shown in FIG. 2 will be omitted.

The display 150 may be implemented with various types of displays such as a liquid crystal display (LCD), organic light emitting diodes (OLED) display, quantum dot light-emitting diodes (QLED) display, and plasma display panel (PDP). The display 150 may also include a driving circuit, a backlight unit, and the like, which may be implemented in the form of a TFT, a low temperature poly silicon (LTPS) TFT, or an organic TFT (OTFT). Meanwhile, the display 150 may be implemented as a flexible display, a 3D display, or the like.

According to an embodiment, the processor 140 may provide UI information for guiding cleaning of the dust collection filter 110 through the display 150 .

The communication interface 160 may input and output various types of data. For example, the communication interface 160 is AP-based Wi-Fi (Wi-Fi, Wireless LAN network), Bluetooth (Bluetooth), Zigbee (Zigbee), wired / wireless LAN (Local Area Network), WAN (Wide Area Network), Ethernet, IEEE 1394, HDMI (High-Definition Multimedia Interface), USB (Universal Serial Bus), MHL (Mobile High-Definition Link), AES/EBU (Audio Engineering Society/ European Broadcasting Union), Optical External device (eg, source device), external storage medium (eg, USB memory), external server (eg, web hard) and various types of data through communication methods such as , Coaxial, etc. can transmit and receive.

According to an embodiment, the processor 140 may control the communication interface 160 to transmit UI information for guiding cleaning of the dust collection filter 110 to the user terminal.

The speaker 170 is a device that converts the electrical acoustic signal generated by the processor 140 into sound waves. The speaker 170 may include a permanent magnet, a coil, and a diaphragm, and may output sound by vibrating the diaphragm by electromagnetic interaction between the permanent magnet and the coil.

The processor 140 may control the speaker 170 to output a guide voice related to the air cleaning function of the electronic device 100 . For example, the processor 140 may control the speaker 170 to output a voice corresponding to Auditory User Interface (AUI) information for guiding cleaning of the dust collection filter 110, but is not limited thereto.

9 is a flowchart illustrating a control method according to an embodiment of the present disclosure.

In the control method according to an embodiment of the present disclosure, a noise sound is obtained through a microphone disposed within a critical distance from a dust collection filter (S910).

Subsequently, when a sound peak having a noise sound level equal to or greater than a first threshold value and a voltage drop in which a voltage is reduced by a predetermined value or more in a voltage supply unit for applying a voltage to the dust collecting filter occurs more than a threshold number of times within a first threshold time, the dust collecting filter is cleaned. is identified as necessary (S920).

Finally, user interface (UI) information for guiding cleaning of the dust collection filter may be provided (S930).

Here, in the step of identifying that cleaning is required ( S920 ), it can be identified that a voltage drop has occurred when the voltage from the voltage supply unit is reduced by a predetermined value or more within the second threshold time.

In addition, in the obtaining noise sound (S910), when the voltage supplied to the dust collection filter through the voltage supply unit reaches a threshold voltage, the noise sound may be obtained through a microphone.

In addition, the step of identifying that cleaning is required (S920) is the step of identifying a noise sound having a peak value among noise sounds received through a microphone for a predetermined time period, and the size of the noise sound is before the third threshold time and before the third threshold. and identifying that a sound peak has occurred if the loudness of each noise sound obtained after a time is greater than a second threshold value or more.

In addition, in the step of identifying that cleaning is required (S920), it may be identified that a sound peak has occurred if the loudness of the noise sound is greater than the loudness of the noise sound obtained before the third critical time by a second threshold value or more.

Here, in the step of identifying that cleaning is required (S920), the length of the time period in which the noise sound having a loudness equal to or greater than the threshold ratio is identified is less than the critical length and the loudness of the noise sound is If the loudness of each noise sound obtained before and after the third threshold time is greater than the second threshold value, it may be identified that a sound peak has occurred.

In addition, in the step of providing UI information (S930), when it is identified that the dust collection filter needs to be cleaned, supply of voltage to the dust collection filter may be stopped, and then UI information for guiding cleaning of the dust collection filter may be provided.

In addition, in the step of providing UI information (S930), UI information for guiding cleaning of the dust collection filter may be provided through a display.

In addition, in the step of providing UI information (S930), UI information for guiding cleaning of the dust collection filter may be transmitted to the user terminal.

Also, the voltage supply unit is implemented as a high voltage power supply (HVPS), and the voltage drop may be the HVPS cut-off voltage.

Meanwhile, the methods according to various embodiments of the present disclosure described above may be implemented in the form of an application that can be installed in an existing electronic device.

In addition, the methods according to various embodiments of the present disclosure described above may be implemented only by upgrading software or hardware of an existing electronic device.

In addition, various embodiments of the present disclosure described above may be performed through an embedded server included in an electronic device or at least one external server.

Meanwhile, various embodiments described above may be implemented in a recording medium readable by a computer or a similar device using software, hardware, or a combination thereof. In some cases, the embodiments described herein may be implemented by the processor 140 itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing the processing operation of the electronic device 100 according to various embodiments of the present disclosure described above may be stored in a non-transitory computer-readable medium. there is. When the computer instructions stored in the non-transitory computer readable medium are executed by the processor of the specific device, the processing operation in the electronic device 100 according to various embodiments described above is performed by the specific device.

A non-transitory computer-readable medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and can be read by a device. Specific examples of the non-transitory computer readable media may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

Although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and is common in the technical field belonging to the present disclosure without departing from the gist of the present disclosure claimed in the claims. Of course, various modifications are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or prospect of the present disclosure.

100: electronic device 110: dust collection filter
120: voltage supply unit 130: microphone
140: processor

Claims (18)

dust collection filter;
a voltage supply unit for applying a voltage to the dust collection filter;
a microphone disposed within a critical distance from the dust collection filter; and
When a sound peak in which the loudness of the noise sound obtained through the microphone is equal to or greater than a first threshold value and a voltage drop in which the voltage is reduced by a predetermined value or more in the voltage supply unit occur more than a threshold number of times within a first threshold time, the dust collection filter is cleaned. identified as necessary;
An electronic device comprising: a processor providing user interface (UI) information for guiding cleaning of the dust collection filter. According to claim 1,
the processor,
and identifying that the voltage drop has occurred when the voltage of the voltage supply unit is reduced by a predetermined value or more within a second threshold time. According to claim 1,
the processor,
Acquiring the noise sound through the microphone when a voltage supplied to the dust collection filter through the voltage supply unit reaches a threshold voltage. According to claim 1,
the processor,
Identifying a noise sound having a peak value among noise sounds received through the microphone for a predetermined time period;
If the loudness of the noise sound is larger than the loudness of each noise sound obtained before and after the third threshold time by a second threshold value or more, identifying that the sound peak has occurred. According to claim 4,
the processor,
When the length of a time period in which a noise sound having a loudness greater than or equal to a threshold ratio is identified based on the loudness of the noise sound having the peak value is less than the critical length, and the loudness of the noise sound is before the third critical time and at the third critical time and identifying that the sound peak is generated when the magnitude of each noise sound obtained later is greater than the second threshold value or more. According to claim 1,
the processor,
If it is identified that the dust collection filter needs to be cleaned, the electronic device provides UI information for guiding cleaning of the dust collection filter after controlling the voltage supply unit to stop supplying voltage to the dust collection filter. According to claim 1,
It further includes a display;
the processor,
An electronic device that provides UI information for guiding cleaning of the dust collection filter through the display. According to claim 1,
It further includes a communication interface;
the processor,
The electronic device for controlling the communication interface to transmit UI information for guiding cleaning of the dust collection filter to a user terminal. According to claim 1,
The voltage supply unit,
It is implemented as a high voltage power supply (HVPS),
The voltage drop is an HVPS cut-off voltage, the electronic device. In the control method of an electronic device including a dust collection filter,
obtaining a noise sound through a microphone disposed within a critical distance from the dust collection filter;
When a sound peak having a loudness of the noise sound equal to or greater than a first threshold value and a voltage drop in which a voltage is reduced by a predetermined value or more in a voltage supply unit applying a voltage to the dust collecting filter occur more than a threshold number of times within a first threshold time, the dust collecting filter identifying as needing cleaning; and
A control method comprising: providing user interface (UI) information for guiding cleaning of the dust collection filter. According to claim 10,
The step of identifying that the cleaning is necessary,
When the voltage of the voltage supply unit is reduced to a predetermined value or more within a second threshold time, identifying that the voltage drop has occurred, the control method. According to claim 10,
Acquiring the noise sound,
Acquiring the noise sound through the microphone when the voltage supplied to the dust collecting filter through the voltage supply unit reaches a threshold voltage. According to claim 10,
The step of identifying that the cleaning is necessary,
identifying a noise sound having a peak value among noise sounds received through the microphone for a predetermined time period; and
If the loudness of the noise sound is larger than the loudness of each noise sound obtained before and after a third threshold time by a second threshold value or more, identifying that the sound peak has occurred; . According to claim 13,
The step of identifying that the cleaning is necessary,
When the length of a time period in which a noise sound having a loudness greater than or equal to a threshold ratio is identified based on the loudness of the noise sound having the peak value is less than the critical length, and the loudness of the noise sound is before the third critical time and at the third critical time If the loudness of each noise sound obtained later is greater than the second threshold value, it is identified that the sound peak has occurred. According to claim 10,
The step of providing the UI information,
If it is identified that the dust collection filter needs to be cleaned, the control method provides UI information for guiding cleaning of the dust collection filter after stopping supply of voltage to the dust collection filter. According to claim 10,
The step of providing the UI information,
A control method for providing UI information for guiding cleaning of the dust collection filter through a display. According to claim 10,
The step of providing the UI information,
A control method for transmitting UI information for guiding cleaning of the dust collection filter to a user terminal. According to claim 10,
The voltage supply unit,
It is implemented as a high voltage power supply (HVPS),
The voltage drop is an HVPS cut-off voltage, the control method.

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