KR101320775B1 - Vacuum cleaner with noise canceling system and vacuum cleaning robot with noise canceling system - Google Patents

Abstract

The present invention relates to a vacuum cleaner to which a noise canceling system is applied and a vacuum cleaning robot to which a noise canceling system is applied. The noise leveling system and the noise canceling system with the noise canceling system that can provide the user with a pleasant operating environment by generating the sound that can cancel the noise by adjusting the output quantity It relates to a vacuum cleaning robot applied.
In particular, by controlling the output of the motor in accordance with the amount of foreign matter, such as dust sucked into the dust collector during the operation of the vacuum cleaner or vacuum cleaner robot to minimize the generation of noise, the sound that can be offset according to the characteristics and degree of each noise It relates to a vacuum cleaner with a noise canceling system and a vacuum robot with a noise canceling system that can provide a comfortable operating environment to users. The sound characteristics are analyzed by pitch analysis, volume, The tempo is changed in real time to provide a vacuum cleaner with a high noise canceling system and a vacuum robot with a noise canceling system.
According to the present invention, by controlling the output amount of the motor according to the amount of foreign matter, such as dust sucked into the dust collector during the operation of the vacuum cleaner or the vacuum cleaning robot to minimize the generation of noise, and to cancel it according to the characteristics and degree of each noise It can produce a sound that can provide a comfortable operating environment to the user.

Description

Vacuum cleaner with noise canceling system and vacuum robot with noise canceling system {VACUUM CLEANER WITH NOISE CANCELING SYSTEM AND VACUUM CLEANING ROBOT WITH NOISE CANCELING SYSTEM}

The present invention relates to a vacuum cleaner to which a noise canceling system is applied and a vacuum cleaning robot to which a noise canceling system is applied. More specifically, the present invention relates to a motor according to the amount of foreign matter such as dust sucked into the dust collector during operation of the vacuum cleaner or the vacuum cleaning robot. The noise leveling system and the noise canceling system with the noise canceling system that can provide the user with a pleasant operating environment by generating the sound that can cancel the noise by adjusting the output quantity It relates to a vacuum cleaning robot applied.

This paragraph is intended to provide background or situational information about the invention as listed in the claims. The detailed description herein may include concepts that can be pursued, but are not necessarily concepts previously devised or pursued. Thus, although not shown herein, what is described in this paragraph is not prior art to the description and claims of this application and is not admitted to be prior art by inclusion in this paragraph.

Vacuum cleaners generally include a bag-type vacuum cleaner that separates dust from flowing air by installing a ventable dust bag on an air passage, and a cyclone that separates dust using a centrifugal force difference between air and dust. (cyclone) vacuum cleaners. Recently, a vacuum cleaner having a cyclone dust collecting unit which improves dust collecting performance and easily discharges dust collected is mainly used. In addition, the use of automatic cleaning robots using a similar method is steadily increasing.

However, the conventional vacuum cleaner had the following problems.

Inside the vacuum cleaner, a fan-motor assembly forcibly generating air flow is provided on the exhaust flow path. The noise that accounts for most of the noise generated by the vacuum cleaner is generated in the fan-motor assembly. Blade Passage Frequency (hereinafter referred to as 'BPF'), which is caused by magnetic noise, flow noise generated when air flows into the exhaust flow path, and turbulence and vortex generated as the fan rotates. Noise, etc.

In particular, among the noises generated by the fan-motor assembly, the BPF noise is a noise of a specific frequency band that is generated in proportion to the number of blades of the fan when air is discharged from the fan to the exhaust passage, and generates a sharp flute, which stimulates the user's hearing. And make the user feel uncomfortable and anxious.

Therefore, there is a need for the introduction of a system that can cancel the noise generated during the operation of the vacuum cleaner or the vacuum robot.

The present invention has been made to solve the above problems, by adjusting the output of the motor according to the amount of foreign matter, such as dust sucked into the dust collector during the operation of the vacuum cleaner or vacuum cleaning robot to minimize the generation of noise, each noise It is to provide a vacuum cleaner with a noise canceling system and a vacuum cleaner robot with a noise canceling system that can generate a sound that can cancel the sound according to the characteristics and degree of the user to provide a comfortable operating environment.

In particular, it analyzes the noise characteristics and changes the pitch, volume, and tempo of the sound in real time, so that the vacuum cleaner with the noise canceling system having the high noise canceling effect and the vacuum cleaner with the noise canceling system are applied. We want to provide a robot.

The present invention provides the following means for solving the above problems.

In one embodiment according to the present invention, the vacuum cleaner provided with a dust collecting device 1 for sucking external foreign matter by using the motor 2, foreign matter measuring means for measuring the amount of foreign matter sucked into the dust collecting device 1 (11) and control means (12) for predicting a noise level generated in the vacuum cleaner according to the measured amount of foreign matter and generating a sound to cancel the noise, and audibly delivering the generated sound to the user. The vacuum cleaner to which the noise canceling system including the generating means 14 is applied.

At this time, it is preferable that the control means 12 adjusts the output of the motor 2 according to the measured amount of foreign matter.

In addition, the foreign matter measuring means 11 is preferably a dust sensor (dust sensor) of the method of measuring the degree to which the LED light source is scattered according to the amount of dust.

In another embodiment according to the present invention, a vacuum cleaner provided with a dust collecting device 1 for sucking external foreign matter by using a motor 2 includes motion recognition means 17 for measuring the degree of movement of the vacuum cleaner; Noise comprising a control means 12 for predicting the noise level generated according to the measured degree of movement to produce a sound to cancel it, and a sound generating means 14 for audibly delivering the generated sound to the user Vacuum cleaner with offset system.

As another embodiment according to the present invention, the vacuum cleaner is provided with a dust collector 1 for sucking external foreign matter by using the motor 2 and an output control switch 29 for adjusting the output of the motor 2. Control means 12 for predicting the noise level generated in the vacuum cleaner in accordance with the signal value of the output control switch 29 to generate a sound to cancel it, and to transmit the generated sound to the user audibly A vacuum cleaner to which a noise canceling system comprising sound generating means 14 is applied.

The vacuum cleaner applied with the noise canceling system according to the embodiment further includes a sound source storage DB (15) for storing the sound classified by type, the control means 12 is the sound source storage DB (15) according to the noise level It is possible to select the sound from).

The apparatus may further include noise measuring means 13 for measuring noise generated from the vacuum cleaner, and the control means 12 determines one or more of amplitude, frequency, and envelope of the measured noise. In this way, it is possible to change the pitch, volume, and tempo of the generated sound in real time. In this case, the control means 12 can generate a reference value by statistically processing the amount of foreign matter and the information of the sound generated accordingly, and can generate the sound based on the reference value next time.

The apparatus may further include a phase retarder 123 delaying a phase of the sound generated from the control means 12 and transmitting the delayed phase to the sound generating means 14. In particular, it may further include an amplifier 121 for amplifying the sound generated from the control means 12 and delivers it to the sound generating means (14).

The sound generating means 14 may be provided externally and further include a communication means 16 for enabling communication of the control means 12 and the sound generating means 14.

The apparatus may further include an external sound source storage DB 151 for storing sounds classified by types, and a communication means 16 for enabling communication between the control means 12 and the sound source storage DB 151, The control means 12 may select a sound from the sound source storage DB 151 according to the noise level.

The vacuum cleaning robot provided with a dust collecting device 1 for sucking external foreign matter by using the motor 2 according to the present invention includes: a foreign matter measuring means 11 for measuring the amount of foreign matter sucked into the dust collecting device 1; Control means 12 for adjusting the output of the motor 2 in accordance with the measured amount of foreign matter, and predicts the noise level generated by the vacuum cleaning robot to generate a sound to cancel it, and the generated sound It characterized in that it comprises a sound generating means 14 for transmitting acoustically to the user.

In this case, further comprising a noise measuring means 13 for measuring the noise generated from the vacuum cleaning robot, the control means 12 is any one or more of the amplitude, frequency, envelope of the measured noise (envelop) It is possible to determine and change the pitch, volume, and tempo of the generated sound in real time.

According to the present invention, by controlling the output amount of the motor according to the amount of foreign matter, such as dust sucked into the dust collector during the operation of the vacuum cleaner or the vacuum cleaning robot to minimize the generation of noise, and to cancel it according to the characteristics and degree of each noise It can produce a sound that can provide a comfortable operating environment to the user.

1 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
2 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
3 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
4 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
5 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
6 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
7 is a block diagram of a vacuum cleaner to which the noise canceling system according to the present invention is applied.
8 is a noise measurement graph of the vacuum cleaner to which the noise canceling system according to the present invention is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide.

The terms to be described below are terms set in consideration of functions in the present invention, and may be changed according to a user's intention or custom such as an experimenter and a measurer, and the definitions should be made based on the contents throughout the present specification.

Hereinafter, a vacuum cleaner or a vacuum cleaning robot to which the noise canceling system according to the present invention is applied will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a vacuum cleaner and a vacuum robot to which a noise canceling system according to the present invention is applied. Noise used in the present specification is originally meant to be a loud sound, but is interpreted as a concept including all sounds that the user does not want to hear. In particular, a fan-motor assembly for forcibly generating air flow is provided on the exhaust passage inside the vacuum cleaner and the vacuum robot, and the magnetic noise generated when the motor is driven and the air generated by the air flow into the exhaust passage are generated. For example, the flow noise and the blade passing frequency noise, which is the noise caused by the turbulence and vortex generated as the fan rotates, may be an example.

The vacuum cleaner and the vacuum robot include a dust collecting device 1 and a motor 2 for sucking foreign matter into the dust collecting device 1. This is a general configuration of the vacuum cleaner and the vacuum robot for applying the present invention, a detailed description thereof will be omitted.

According to one embodiment of the present invention, the foreign matter measuring means 11 for measuring the amount of foreign matter sucked into the dust collector 1 is included. The foreign matter measuring means 11 means a means for measuring the amount of dust or garbage, for example, a dust sensor (dust sensor). Hereinafter, the amount of foreign matter and the amount of dust will be used in the same concept.

7 shows a structural diagram of a dust recognition sensor. The dust sensor used in the present invention is preferably a method of measuring the degree to which the LED light source is scattered according to the amount of dust, but the scope of rights is not necessarily limited thereto. This is a way of counting the number of dust shining in the rays of sunlight coming from curtain windows. More specifically, by heating the air containing dust flowing into the dust collector 1, the gas is raised to the illumination region, and when the light of the light source is shot from the irradiation light lens to the illumination region, dust particles pass through the illumination region. In this case, scattered light of intensity corresponding to the size of the particles is generated. This is measured using a light receiving element.

The intensity of the scattered light depends on the size of the dust, so that large particles are scattered strongly and small particles are scattered weakly. That is, when the dust crosses the inside of the detection beam (lighting region), it exhibits a scattered light pulse having a time width that traverses and reflects the magnitude of the dust.

When the air is clean and the dust concentration is low, it is rare to cross the detection beam, and the scattered light pulse is sparse. When the dust concentration is high, the pulse of scattered light appears frequently. By dividing the intensity of scattered light every certain time, the amount of dust can be measured.

The control means 12 predicts and determines the magnitude and pattern of the noise generated from the amount of dust measured by the foreign matter measuring means 11, and generates a sound signal that can cancel the effect of the generated noise in a signal / psychological manner. Will be created. The offset sound has the same frequency and magnitude as the noise signal, but the phase is 180 degrees, and when the two signals are summed, it becomes 0 to remove the noise. However, the present invention is not intended to completely remove the noise, but to provide a user with a psychological comfort by providing a pattern of sound that can cancel the noise, so that the amplitude and frequency of the sound can be coped with by identifying the characteristics of the noise signal. It is desirable to change the pitch, volume, and tempo.

In general, when the amount of dust measured is large, the output of the motor is high. Or control to increase. In this case, magnetic noise, flow noise, and BPF noise are increased. In addition, the noise patterns also vary in amplitude, frequency, and envelope depending on the amount of dust.

Therefore, the control means 12 should have a built-in algorithm for predicting and determining the magnitude and pattern of noise expected from the measured amount of dust and a processor for processing the algorithm. In addition, it must be equipped with a processor that is responsible for generating a sound (or music) that can reduce the user's discomfort by counteracting the signal (physical) / psychological noise.

It is preferable that the sound generating means 14 is generally a speaker. When using dual stereo speakers, it is possible to add additional phase delay circuits to create phase delays for different channels.

2 shows an embodiment of a schematic diagram of such a noise canceling system.

In one embodiment according to the present invention, the vacuum cleaner provided with a dust collecting device 1 for sucking external foreign matter by using the motor 2, foreign matter measuring means for measuring the amount of foreign matter sucked into the dust collecting device 1 (11) and control means (12) for predicting a noise level generated in the vacuum cleaner according to the measured amount of foreign matter and generating a sound to cancel the noise, and audibly delivering the generated sound to the user. A vacuum cleaner to which a noise canceling system comprising a generator means 14 is provided.

According to the present invention, when the amount of foreign matter measured by the foreign matter measuring means 11 is low, the output of the motor 2 is kept low, and in many cases, the output of the motor 2 is kept high to generate noise according to the amount of foreign matter. It is also possible to adjust. Therefore, the control means 12 preferably adjusts the output of the motor 2 according to the measured amount of foreign matter.

The apparatus may further include noise measuring means 13 for measuring noise generated from the vacuum cleaner, and the control means 12 determines one or more of amplitude, frequency, and envelope of the measured noise. In this way, it is possible to change the pitch, volume, and tempo of the generated sound in real time. in this case,

The noise measuring means 13 preferably measures not only the noise generated from the vacuum cleaner but also the sound generated by the control means 12 output from the sound generating means 14. This measurement signal should be analyzed and judged so that, when the noise is dominant, the generated sound for noise cancellation may be converted in real time.

That is, the control means 12 may have another kind of music library capable of offsetting the noise generated according to the amount of foreign matter, in particular the amount of dust. The control means 12 transmits a signal to the sound generating means 14 by changing the type and intensity of the music according to the amount of dust.

To this end, the vacuum cleaner to which the noise canceling system according to the present embodiment is applied further includes a sound source storage DB 15 for storing sounds classified by type, and the control means 12 stores the sound source according to the noise level. It is possible to select a sound from the DB 15.

As used herein, the term "noise level" refers to a value obtained by quantifying the noise based on the amplitude, frequency, envelope, etc. of the noise, and is preferably stored in a database in advance. The present invention stores the sound (or music) that can cancel this for each noise level in advance in the sound source storage DB (15). That is, the type and intensity of music capable of canceling the amplitude and frequency of the noise for each noise level are made and stored in advance, and thus the music is selectively transmitted to the sound generating means 14. In particular, the type and intensity of the music is preferably classified by pitch, volume, and tempo. In addition, the control means 12 preferably has an algorithm so that the pitch, volume, and tempo can be changed in real time according to the changing noise level even in the case of the same music.

The noise measuring means 13 may be a microphone such as a microphone. Here, the microphone may be a condenser microphone, an inductor microphone, a resistance microphone, or the like. In addition, other types of vibration sensing means other than a microphone may be considered as the means. For example, an apparatus using an optical element is proposed, and as an example, an optical pickup apparatus applied to an optical storage device. Alternatively, a device using the same may be proposed.

In this case, there is a need for an analog-to-digital (A / D) converter that converts the analog noise signal detected by the microphone to digital. The control means 12 extracts noise characteristics from the digitally converted noise signal and generates a sound for canceling the noise characteristics. Since the generated sound is a digital signal, it is preferably provided with a digital-to-analog (D / A) converter 122 for converting it into an analog signal and then passed to the sound generating means 14.

In this case, it is preferable to further include an amplifier 121 for amplifying the canceled sound converted into analog according to a control signal. In Fig. 5, although the amplifier 121 and the D / A converter 122 are arranged in parallel, it is possible to arrange them in series.

Referring to FIG. 5, the apparatus may further include a phase retarder 123 delaying a phase of the sound generated from the control unit 12 and transmitting the delayed phase to the sound generating unit 14. In particular, it may further include an amplifier 121 for amplifying the sound generated from the control means 12 and delivers it to the sound generating means (14).

6, an electronic device including a data storage device such as a PC or a mobile device installed in an office or a room may be used. That is, the apparatus further includes an external sound source storage DB 151 for storing sounds classified by type, and a communication means 16 for enabling communication between the control means 12 and the sound source storage DB 151, The control means 12 may select a sound from the sound source storage DB 151 according to the noise level.

Moreover, it is possible to utilize the acoustic apparatus installed in an office or a room. That is, the sound generating means 14 may be provided externally and further include a communication means 16 enabling communication between the control means 12 and the sound generating means 14. The dotted line depicted in FIG. 6 means a wireless communication network.

Features of the present invention described above is to measure the amount of foreign matter (dust) introduced into the dust collector 1, to control the output of the motor, etc. based on this, the sound that can be offset according to the noise level generated therefrom It is a technology to provide.

However, the amount of dust sucked into the dust collector 1 may vary depending on how long the vacuum cleaner stays in one place, even when the absolute amount of the surrounding dust is large. For example, if you stay at one point, the amount of dust coming in can be nearly zero after a period of time.

In addition, when the vacuum cleaner is moving at a high speed, the psychological state of the user may be said to indicate an urgent state, and the output of the motor should be increased so that a large amount of dust may be sucked in a short time. The present invention reflects this situation, and provides an embodiment using the motion recognition means 17 instead of the foreign matter measuring means 11. This is shown in FIG.

The motion recognition sensor 17 refers to an acceleration sensor, and can measure the operation speed of the vacuum cleaner and the operation speed of the cleaning robot by the user performing the cleaning. In general, when the speed is high, it is desirable to increase the output of the motor, and in this case, the amount of noise is generally increased. Therefore, it is necessary to measure the degree of movement and to generate and provide a sound to cancel the corresponding noise.

More preferably, when the operating speed of the vacuum cleaner is fast, the control means 12 controls the output of the motor to be higher, for example, by setting the desired output value of the motor in advance according to the operating speed. In addition, by measuring the characteristics of the noise in advance, or by using the noise measuring means 13 described above to obtain the noise characteristics and reflects the sound through the sound generating means (14).

In summary, in the vacuum cleaner provided with a dust collecting device 1 for sucking external foreign matter by using the motor 2, the motion recognition means 17 for measuring the degree of movement of the vacuum cleaner, and the measured movement The noise canceling system includes a control means 12 for predicting a noise level generated according to a degree and generating a sound canceling the noise level, and a sound generating means 14 for audibly delivering the generated sound to a user. Provide a vacuum cleaner.

In addition, the present invention can be applied not only to controlling the output value of the motor according to the amount of dust or the degree of movement, but also to a vacuum cleaner that the user adjusts by manual operation. That is, referring to FIG. 3, as another embodiment according to the present invention, a dust collecting device 1 for sucking external foreign matter using the motor 2 and an output control switch for adjusting the output of the motor 2 ( 29 is provided with a vacuum cleaner, the control means 12 for predicting the noise level generated in the vacuum cleaner according to the signal value of the output control switch 29 and generating a sound to cancel it, and the generated sound Is a vacuum cleaner to which a noise canceling system including sound generating means (14) that transmits the sound to the user.

The output value of the motor is preset in the output control switch 29, and the output value of the motor changes according to the signal value of the output value selected by the user. Even in this case, the sound reflecting the noise characteristic corresponding to each output value in advance is stored in the sound source storage DB 15, and the sound is output through the sound generating means 14.

The present invention can be applied not only to a vacuum cleaner but also to an automatic vacuum cleaner. The vacuum cleaning robot provided with a dust collecting device 1 for sucking external foreign matter by using the motor 2 according to the present invention includes: a foreign matter measuring means 11 for measuring the amount of foreign matter sucked into the dust collecting device 1; Control means 12 for adjusting the output of the motor 2 in accordance with the measured amount of foreign matter, and predicts the noise level generated by the vacuum cleaning robot to generate a sound to cancel it, and the generated sound It characterized in that it comprises a sound generating means 14 for transmitting acoustically to the user.

In this case, further comprising a noise measuring means 13 for measuring the noise generated from the vacuum cleaning robot, the control means 12 is any one or more of the amplitude, frequency, envelope of the measured noise (envelop) It is possible to determine and change the pitch, volume, and tempo of the generated sound in real time.

The principle is the same as the vacuum cleaner described above, so a detailed description thereof will be omitted.

According to the present invention, it is also possible to provide a function of learning the amount of foreign matter and the sound corresponding thereto according to the characteristics of the user. That is, while the user uses the noise canceling system according to the present invention, the amount of foreign matter and the pattern of sound corresponding thereto are continuously stored. In this case, after the operation of the vacuum cleaner is finished, the user is asked whether the sound pattern is appropriate, and the feedback is received and stored. In addition, it is possible to generate a reference value by performing statistical processing on it, and in the case where the amount of foreign matter is similar, it is possible to generate a sound based on the reference value.

The control means 12 may generate a reference value by statistically processing the amount of foreign matter and the information of the generated sound, and generate the sound based on the reference value next time.

The present invention is not limited to the scope of the embodiments by the above embodiments, all having the technical spirit of the present invention can be seen to fall within the scope of the present invention, the present invention is the scope of the claims by the claims Note that is determined.

1: dust collector, 2: motor,
11: foreign matter measuring means, 12: control means,
13 means for measuring noise, 14 means for generating sound,
15: sound source storage DB, 16: communication means,
29: output control switch

Claims (14)

In the vacuum cleaner provided with the dust collecting apparatus 1 which inhales a foreign substance using the motor 2,
Foreign matter measuring means (11) for measuring the amount of foreign matter sucked into the dust collector (1);
A sound source storage DB 15 for storing sounds classified by type;
Control means 12 for predicting a noise level generated in the vacuum cleaner according to the measured amount of foreign matter and selecting a sound to cancel the noise from the sound source storage DB 15;
Sound generating means (14) for acoustically delivering the selected sound to a user,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
Further characterized in that it further comprises a communication means 16 for wireless communication with at least one of the sound source storage DB 15 and the sound generating means 14, which is provided externally,
Vacuum cleaner with noise canceling system. In the vacuum cleaner provided with the dust collecting apparatus 1 which inhales a foreign substance using the motor 2,
Motion recognition means 17 for measuring the degree of movement of the vacuum cleaner;
A sound source storage DB 15 for storing sounds classified by type;
Control means 12 for predicting a noise level generated according to the measured movement degree and selecting a sound to cancel the noise from the sound source storage DB 15;
Sound generating means (14) for acoustically delivering the selected sound to a user,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
Further characterized in that it further comprises a communication means 16 for wireless communication with at least one of the sound source storage DB 15 and the sound generating means 14, which is provided externally,
Vacuum cleaner with noise canceling system. In the vacuum cleaner provided with the dust collector 1 which inhales a foreign substance using the motor 2, and the output control switch 29 which adjusts the output of the said motor 2,
A sound source storage DB 15 for storing sounds classified by type;
Control means 12 for predicting a noise level generated in the vacuum cleaner according to a signal value of the output control switch 29 and selecting a sound to cancel the noise from the sound source storage DB 15;
Sound generating means (14) for acoustically delivering the selected sound to a user,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
Further characterized in that it further comprises a communication means 16 for wireless communication with at least one of the sound source storage DB 15 and the sound generating means 14, which is provided externally,
Vacuum cleaner with noise canceling system. The method according to claim 1,
The control means 12 adjusts the output of the motor 2 according to the measured amount of foreign matter,
Vacuum cleaner with noise canceling system. The method according to claim 1,
The foreign matter measuring means 11 is a dust sensor (dust sensor) of measuring the degree to which the LED light source is scattered according to the amount of dust,
Vacuum cleaner with noise canceling system. delete The method according to any one of claims 1 to 3,
It further comprises a noise measuring means 13 for measuring the noise generated from the vacuum cleaner,
The control means 12 determines any one or more of the amplitude, frequency, and envelope of the measured noise,
As a result, the pitch, volume, and tempo of the generated sound can be changed in real time.
Vacuum cleaner with noise canceling system. The method according to any one of claims 1 to 3,
Further comprising a phase retarder 123 for delaying the phase of the sound generated from the control means 12 and transmitting it to the sound generating means 14,
Vacuum cleaner with noise canceling system. The method according to any one of claims 1 to 3,
Further comprising an amplifier (121) for amplifying the sound generated from the control means 12 and transmits it to the sound generating means (14),
Vacuum cleaner with noise canceling system. The method of claim 7,
The control means 12 generates a reference value by statistically processing the amount of foreign matter and the information of the sound generated accordingly,
To generate a sound based on the reference value next time,
Vacuum cleaner with noise canceling system. delete delete In the vacuum cleaning robot provided with a dust collecting device (1) for suctioning foreign matter by using a motor (2),
Foreign matter measuring means (11) for measuring the amount of foreign matter sucked into the dust collector (1);
A sound source storage DB 15 for storing sounds classified by type;
Control means 12 for adjusting the output of the motor 2 in accordance with the measured amount of foreign matter, predicting the noise level generated by the vacuum cleaning robot to cancel the sound from the sound source storage DB (15) and,
Sound generating means (14) for acoustically delivering the selected sound to a user,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
At least one of the sound source storage DB 15 and the sound generating means 14 is provided externally,
Further characterized in that it further comprises a communication means 16 for wireless communication with at least one of the sound source storage DB 15 and the sound generating means 14, which is provided externally,
Vacuum cleaning robot with noise canceling system. The method according to claim 13,
Further comprising noise measuring means for measuring the noise generated from the vacuum cleaning robot,
The control means 12 determines any one or more of the amplitude, frequency, and envelope of the measured noise,
As a result, the pitch, volume, and tempo of the generated sound can be changed in real time.
Vacuum cleaning robot with noise canceling system.

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