KR20170058642A - System for suppressing noise between floors and method thereof - Google Patents

System for suppressing noise between floors and method thereof Download PDF

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Publication number
KR20170058642A
KR20170058642A KR1020150162471A KR20150162471A KR20170058642A KR 20170058642 A KR20170058642 A KR 20170058642A KR 1020150162471 A KR1020150162471 A KR 1020150162471A KR 20150162471 A KR20150162471 A KR 20150162471A KR 20170058642 A KR20170058642 A KR 20170058642A
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South Korea
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noise
audio signal
pressure level
sound pressure
processor
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KR1020150162471A
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Korean (ko)
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KR101774320B1 (en
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성창화
신주철
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주식회사 시스템앤솔루션
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The present invention relates to a system and a method for suppressing interlayer noise, and more particularly, to a system for suppressing interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall, Analyzing information detected by a noise detector for detecting a noise introduced into the indoor space, and analyzing information detected by the noise detector to detect a noise of the broadband noise, which is adjusted to a predetermined value when the sound pressure level of the noise is below a set reference value, And ii) if the sound pressure level of the noise exceeds the set reference value, a sound pressure level of a frequency band corresponding to the frequency band of the noise of the generated wideband noise is applied The audio signal of the broadband noise adjusted corresponding to the sound pressure level of the noise And an output unit for outputting a sound corresponding to an audio signal of a wideband noise generated in the processor. According to the present invention, it is possible to maintain a comfortable indoor environment by effectively suppressing noise transmitted to a user's indoor space, and effectively remove interlayer noise by a simple method without additional installation.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a system for suppressing noise,

The present invention relates to a system for suppressing interlayer noise and a method for suppressing interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall, Analyzing information detected by a noise detector for detecting noise introduced into the indoor space to generate an audio signal of a broadband noise in which a sound pressure level is adjusted to a predetermined value when the sound pressure level of the noise is below a set reference value, A processor for generating an audio signal of a wideband noise in which a sound pressure level of a frequency band corresponding to a frequency band of noise among the audio signals of the generated wideband noise is adjusted corresponding to a sound pressure level of noise, And a sound corresponding to an audio signal of a wideband noise generated in the processor Power noise suppressing interlayer comprises parts of a system and a method thereof.

Generally, a building such as an apartment, a multi-family house, or a townhouse is formed into a multi-layer structure by an interlayer floor slab and divided into a plurality of indoor spaces by a wall.

The interlayer floor structure and walls of such a building frequently transmit the noise generated in the upper and lower floor rooms or other indoor spaces in the same floor to the indoor space, resulting in hindrance to residential living or work.

Therefore, in order to reduce the interlayer noise, various floor structures and walls have been actively developed and studied for reducing or interrupting the interlayer noise and vibration of the building. The developed floor structure or wall is mostly composed of a floor slab A sound absorbing material or a vibration proof material is laminated on a wall, an air layer is suitably formed, or a structure in which a rubber layer, a fiber layer, a sound absorbing plate and the like are laminated in various layers.

However, since the floor structure or the wall developed until now can not completely block the interlayer noise of the apartment house, the interlayer noise problem still causes disputes between the upper and lower floor residents. Physically blocking the interlayer noise perfectly is the most reliable means of solving the interlayer noise, but physically blocking the interlayer noise is not easy in terms of technology as well as cost

Also, in the case of existing buildings, in order to apply the floor structure or the wall for preventing the interlayer noise, a large-scale renovation work corresponding to the reconstruction is required.

Accordingly, the present inventor proposes a technique for effectively suppressing the inter-layer noise transmitted to the user's indoor space without further construction work.

The present invention aims at solving all of the above problems.

It is another object of the present invention to maintain a pleasant environment by effectively suppressing noise transmitted to a user's indoor space.

It is another object of the present invention to effectively remove interlayer noise transmitted to a user's indoor space.

In order to accomplish the objects of the present invention as described above and achieve the characteristic effects of the present invention described below, the characteristic structure of the present invention is as follows.

According to an aspect of the present invention, there is provided a system for suppressing the interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall, the system comprising: The method comprising the steps of: i) analyzing information detected by a noise detector for detecting an incoming noise to generate an audio signal of a wideband noise in which a sound pressure level is adjusted to a predetermined value if the sound pressure level of the noise is below a set reference value, A sound pressure level of a frequency band corresponding to the frequency band of the noise of the generated wideband noise corresponds to a sound pressure level of the noise when the sound pressure level of the noise exceeds the set reference value, A processor for generating an adjusted audio signal of broadband noise, And outputting a sound corresponding to an audio signal of a wideband noise generated in the speaker.

According to another aspect of the present invention, there is provided a method for suppressing interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall, the method comprising the steps of: (a) Analyzing information detected by a noise detector for detecting noise introduced into the indoor space to generate an audio signal of a broadband noise in which a sound pressure level is adjusted to a predetermined value when the sound pressure level of the noise is below a set reference value A sound pressure level of a frequency band corresponding to the frequency band of the noise of the generated wideband noise is applied to the audio signal of the frequency band of the noise, Generating an audio signal of broadband noise adjusted in response to a sound pressure level of noise, and (b) The output unit may include outputting a sound corresponding to an audio signal of a wideband noise generated in the processor.

The present invention has the effect of enabling a comfortable indoor environment to be maintained by effectively suppressing noise transmitted to a user's indoor space.

In addition, there is an effect that the interlayer noise can be effectively removed by a simple method without any additional construction.

1 is a block diagram schematically illustrating an interlayer noise suppression system according to an embodiment of the present invention.
FIG. 2 schematically shows a frequency spectrum of wideband noise output corresponding to a detected noise according to an embodiment of the present invention. Referring to FIG.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

1 is a block diagram schematically illustrating an interlayer noise suppression system according to an embodiment of the present invention. Referring to FIG. 1, an interlayer noise suppression system 100 includes a floor slab and a wall, The present invention may include a processor 120 and an output unit 140 for suppressing the inter-layer noise in the interior space of the structure made of structure.

First, the processor 120 analyzes the information detected by the noise detector 110, which is installed in the indoor space and detects the noise introduced into the indoor space, and adjusts the sound pressure level to a predetermined value if the sound pressure level of the noise is below the set reference value When the sound pressure level of the noise exceeds the set reference value, the sound pressure of the frequency band corresponding to the frequency band of the noise of the generated wideband noise is generated The level can be adjusted to correspond to the sound pressure level of the noise to generate an audio signal of wideband noise.

When the sound pressure level of the noise detected by the noise detector 110 exceeds a predetermined reference value, the processor 120 detects an audio signal having a phase opposite to the frequency spectrum of the noise exceeding the set reference value Can be generated.

The output unit 140 may output a sound corresponding to an audio signal of a wideband noise generated by the processor 120. [ The output unit 140 may output a sound corresponding to the audio signal having a phase opposite to that of the frequency spectrum of the noise generated by the processor 120. The output unit 140 may include a speaker, for example.

At this time, the noise detection unit 110 may be included in the inter-layer noise suppression system 100 according to an embodiment of the present invention. For example, the noise detector 110 may include a sensor for outputting an electrical signal according to noise detection, and the sensor may include a microphone such as a dynamic microphone or a condenser microphone.

In addition, the inter-layer noise suppression system 100 according to an exemplary embodiment of the present invention may further include a storage unit 150 storing a plurality of sample frequency spectra for various interlayer noise, It is possible to extract a sample frequency spectrum similar to the frequency spectrum of the noise exceeding the reference value from the storage unit 150 and generate an audio signal in which the phase of the extracted sample frequency spectrum is inverted. The storage unit 150 may include Big Data, which is large-scale data generated in a digital environment.

The interlayer noise suppression system 100 according to an embodiment of the present invention may further include an amplification unit 130 for amplifying an audio signal of a wideband noise generated by the processor 120, The amplified audio signal may be output through the output unit 140.

In addition, the inter-layer noise suppression system 100 according to an embodiment of the present invention further includes a user interface unit 160 for transmitting a signal according to a user setting operation for the operation of the processor 120 to the processor 120 .

The interlayer noise suppression system and the interlayer noise suppression method according to the present invention will now be described in more detail with reference to the interlayer noise suppression system 100 according to one embodiment of the present invention.

When the noise detector 110 detects noise flowing into the indoor space and transmits the noise to the processor 120, the processor 120 analyzes the information detected by the noise detector 110.

In accordance with the analyzed information, the processor 120 generates an audio signal of a broadband noise in which the sound pressure level is adjusted to a predetermined value when the sound pressure level of the noise is below the set reference value. For example, when the sound pressure levels of the detected frequencies of the frequencies f1 and f2 in FIG. 2 (a) are lower than the reference value, the processor 120 generates an audio signal in which the sound pressure level of the wideband noise is adjusted to a predetermined value.

At this time, the wideband noise may include at least one of white noise, pink noise, and brown noise, and the processor 120 may be configured to receive the signal transmitted from the user interface unit 160 according to a setting signal according to a user's selection operation Thereby generating an audio signal of a broadband noise desired by the user.

In addition, the reference value is a value set for discriminating whether or not the detected noise is the interlayer noise, and the predetermined value for adjusting the sound pressure level of the broadband noise may be set to be smaller than or equal to the reference value as shown in FIG. 2 (a) . The predetermined value may be set by the setting operation of the user through the user interface unit 160, and the user may set a predetermined value according to the characteristics and taste of the space in which the user lives.

An audio signal of a broadband noise whose sound pressure level is adjusted to a predetermined value by the processor 120 may be converted into a sound of broadband noise in the output unit 140 and outputted to the indoor space. The audio signal generated by the processor 120 may be amplified by the amplifying unit 130 and the audio signal amplified by the amplifying unit 130 may be output through the output unit 140 as a sound.

2 (a), all or most of the noises in the frequency bands (f1, f2) having a sound pressure level lower than a predetermined value among the noises flowing into the indoor space are sound masking the user may be prevented from recognizing ambient noise having a sound pressure level equal to or lower than a predetermined value, thereby maintaining a pleasant condition. [0031] In addition, a wideband noise such as white noise So that there is an advantageous effect for improving the concentration of the user located in the indoor space or taking a good night's sleep.

When the sound pressure level of the noise detected by the noise detector 110 exceeds the set reference value, the processor 120 determines the sound pressure level of the frequency band f3 corresponding to the frequency band of the noise of the generated wideband noise A broadband noise audio signal adjusted according to the sound pressure level of the noise and a wideband noise signal as shown in FIG. 2 (b) can be generated, and the generated wideband noise audio signal can be output through the output unit 140 It can be output as sound.

That is, when the inter-layer noise is generated while the broadband noise adjusted to the sound pressure level of the predetermined value is outputted, the processor 120 determines that the audio signal of the broadband noise has the inter- And generates a wideband noise audio signal in which the sound pressure level of the frequency band f3 corresponding to the frequency band of noise is adjusted in correspondence with the sound pressure level of the interlayer noise, and the generated wideband noise audio signal is output through the output unit 140 Sound is output.

Therefore, as shown in FIG. 2 (b), the sound pressure level of the broadband noise is adjusted in accordance with the frequency and the sound pressure level of the interlayer noise even when the interlayer noise occurs, thereby effectively masking the interlayer noise introduced into the interior space .

When the sound pressure level of the noise detected by the noise detector 110 exceeds a predetermined reference value, the processor 120 detects an audio signal having a phase opposite to the frequency spectrum of the noise exceeding the set reference value And the generated audio signal can be output to the indoor space through the output unit 140 as a sound.

That is, when continuously generating the interlayer noise, when the broadband noise whose sound pressure level of the frequency band is adjusted is continuously output, the sound generated by the user in the indoor space may be masked and inconvenienced.

Accordingly, when the inter-layer noise is continuously generated, the processor 120 continuously outputs the sound having the opposite phase to the spectrum of the inter-layer noise through the output unit 140, So that it is possible to eliminate interlayer noise. The continuous generation of the interlayer noise may include that the interlayer noise is repeatedly maintained for a predetermined time or the interlayer noise is continuously maintained for a predetermined time.

At this time, the processor 120 extracts a sample frequency spectrum similar to the frequency spectrum of the noise exceeding the set reference value from the storage unit 150 storing a plurality of sample frequency spectra for various interlayer noise, And the generated audio signal can be output as a sound through the output unit 140. [0053] FIG. In addition, the processor 120 may extract the sample frequency spectrum from the large data (Big Data) generated in the digital environment. However, when there is no sample frequency spectrum similar to the frequency spectrum of the interlayer noise in the storage unit 150 or the big data, the processor 120 stores the frequency spectrum of the detected interlayer noise in the storage unit 150 or the big data, An audio signal having a phase opposite to that of the frequency spectrum of the detected interlayer noise may be generated and the generated audio signal may be output as a sound through the output unit 140.

In addition, the processor 120 may generate an audio signal of wideband noise only for a set time according to a setting operation of the user transmitted from the user interface unit 160. [ This allows the user to ensure that broadband noise is output for a desired amount of time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.

100: an interlayer noise suppression system, 110: a noise detector,
120: processor, 130: amplifier,
140: output unit, 150: storage unit,
160: User interface section

Claims (16)

A system for suppressing interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall,
Analyzing information detected by a noise detector installed in the indoor space to detect noise introduced into the indoor space, and analyzing information detected by the noise detector to detect a noise of the broadband noise, which is a sound pressure level adjusted to a predetermined value, And generating a signal or applying an audio signal that is already generated and provided, and ii) if the sound pressure level of the noise exceeds the set reference value, a frequency band corresponding to the noise frequency band of the generated wideband noise audio signal A processor for generating a wideband noise audio signal in which a sound pressure level is adjusted corresponding to a sound pressure level of the noise; And
An output unit for outputting a sound corresponding to an audio signal of a wideband noise generated by the processor; / RTI > The method according to claim 1,
The processor generates an audio signal having a phase opposite to the frequency spectrum of the noise exceeding the set reference value when the processor detects the sound pressure level of the noise exceeding the set reference value for a predetermined time or more, Lt; / RTI > 3. The method of claim 2,
Further comprising a storage for storing a plurality of sample frequency spectra for various interlayer noise,
Wherein the processor extracts a sample frequency spectrum similar to a frequency spectrum of a noise exceeding the set reference value from the storage unit and generates an audio signal in which the phase of the extracted sample frequency spectrum is inverted, system. The method of claim 3,
Wherein the storage comprises Big Data and the Big Data is large scale data generated in a digital environment. The method according to claim 1,
Wherein the broadband noise comprises at least one of white noise, pink noise, and brown noise. The method according to claim 1,
Further comprising an amplifier for amplifying the wideband noise audio signal generated by the processor,
And an audio signal amplified by the amplifying unit is output through the output unit. The method according to claim 1,
Wherein the noise detector is included in the interlayer noise suppression system. The method according to claim 1,
Wherein the predetermined value is less than or equal to the reference value. The method according to claim 1,
The processor comprising:
Wherein the audio signal of the broadband noise is generated only for a set time set by the user. The method according to claim 1,
The processor comprising:
And the predetermined value is set corresponding to a value set by the user. 11. The method according to any one of claims 9 to 10,
Further comprising: a user interface unit for transmitting a signal according to a user setting operation for setting the predetermined time or the predetermined value to the processor. A method for suppressing interlayer noise in a building having a multi-layer structure of a plurality of indoor spaces by a floor slab and a wall,
(a) analyzing information detected by a noise detection unit installed in the indoor space and detecting noise entering the indoor space, and (i) if the sound pressure level of the noise is lower than a predetermined reference value, And generating an audio signal of the adjusted broadband noise or applying an audio signal that is already generated and provided, and ii) if the sound pressure level of the noise exceeds the set reference value, Generating a wideband noise audio signal in which a sound pressure level of the frequency band corresponding to the noise level is adjusted corresponding to the sound pressure level of the noise; And
(b) outputting a sound corresponding to an audio signal of a wideband noise generated in the processor; Wherein the noise suppression method comprises the steps of: 13. The method of claim 12,
In the step (a)
Wherein the processor generates an audio signal having a phase opposite to a frequency spectrum of the noise exceeding the set reference value when the sound pressure level of the noise is detected for a predetermined time or longer in a state where the sound pressure level exceeds the set reference value A method for suppressing interlayer noise. 14. The method of claim 13,
In the step (a)
Wherein the processor extracts a sample frequency spectrum similar to a frequency spectrum of the noise exceeding the set reference value from a storage where a plurality of sample frequency spectra for various interlayer noise are stored and inverts the phase of the extracted sample frequency spectrum And generating an audio signal. 15. The method of claim 14,
In the step (a)
Wherein the processor extracts the sample frequency spectrum from Big Data and the Big Data is large scale data generated in a digital environment. 13. The method of claim 12,
(c) the amplifying unit further comprises amplifying the audio signal of the wideband noise generated in the processor,
Wherein the sound corresponding to the audio signal amplified in the step (c) is outputted through the output unit.
KR1020150162471A 2015-11-19 2015-11-19 System for suppressing noise between floors and method thereof KR101774320B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102254701B1 (en) * 2020-04-06 2021-05-24 주식회사 세이렌어쿠스틱스 Apparatus of speaker with built-in microphone and method of reducing noise using by thereof
KR102389693B1 (en) * 2021-11-05 2022-04-22 (주)동신정보통신 Noise protection system usting a white silencer
KR102425165B1 (en) * 2021-04-13 2022-07-29 주식회사 세이렌어쿠스틱스 Apparatus and method for controlling feedback sound

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102254701B1 (en) * 2020-04-06 2021-05-24 주식회사 세이렌어쿠스틱스 Apparatus of speaker with built-in microphone and method of reducing noise using by thereof
WO2021206347A1 (en) * 2020-04-06 2021-10-14 주식회사 세이렌어쿠스틱스 Speaker device having built-in microphone, and noise cancellation method using same
KR102425165B1 (en) * 2021-04-13 2022-07-29 주식회사 세이렌어쿠스틱스 Apparatus and method for controlling feedback sound
KR102389693B1 (en) * 2021-11-05 2022-04-22 (주)동신정보통신 Noise protection system usting a white silencer

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