KR102454962B1 - Interlayer noise monitoring system - Google Patents

Abstract

The present invention compares the vibration data measured by the vibration sensor of the vibration sensor assembly installed on one side of the floor slab or wall in the apartment house with the reference value in the analysis module of the wall pad to classify the vibration level and output it to the display unit, It is about an inter-floor noise monitoring system that can prevent disputes due to inter-floor noise by recognizing the level of noise level and avoid excessive restrictions on residents' activities.
The present invention provides a vibration sensor that is installed on one side of a floor slab or wall in an apartment house to measure the vibration of a frame, a housing that is embedded in an outlet pre-formed in the frame, a housing in which the vibration sensor is accommodated, and is coupled to the front of the housing A vibration transmission plate which is an elastic member composed of a cover plate exposed into the household and a U-shaped body portion that is formed in a U-shape and both ends are coupled to the rear side of the housing, and a U-shaped contact portion that protrudes outward from the center of the body portion and is in close contact with the frame surface. A vibration sensor assembly comprising; and an analysis module for classifying the vibration level by comparing the vibration data received from the vibration sensor with a preset reference value as provided in the wall pad installed in the household, and a signal to the display unit of the wall pad according to the vibration level by receiving a signal from the analysis module a data processing unit including a main signal output module for outputting ; It is characterized in that it is composed of

Description

Interlayer noise monitoring system

The present invention compares the vibration data measured by the vibration sensor of the vibration sensor assembly installed on one side of the floor slab or wall in the apartment house with the reference value in the analysis module of the wall pad to classify the vibration level and output it to the display unit, It is about an inter-floor noise monitoring system that can prevent disputes due to inter-floor noise by recognizing the level of noise level and avoid excessive restrictions on residents' activities.

As the use of multi-unit housing as a residential building is common, the damage caused by inter-floor noise between generations is increasing, which is emerging as a serious social problem.

Inter-floor noise refers to noise that is caused by human activities in an apartment building and causes damage to other occupants.

Concrete, the main material used in the construction of apartment houses, has better barrier properties against airborne noise, which is noise transmitted through air, such as speech or TV, than other materials of the same thickness due to the nature of the heavy and tight material.

On the other hand, the sound of children running, the sound of falling objects, the sound of moving furniture, the sound of an adult's footsteps, and the sound of exercise equipment, etc., which are impact sounds generated by direct excitation on the concrete frame surface, can be easily transmitted to adjacent generations. There are characteristics. In particular, the wall-type structure, which constitutes most of the apartment houses in Korea, allows the impact sound to be easily transmitted through the wall, and causes noise not only in the lower household but also in other adjacent households such as the next generation or the diagonal generation.

Accordingly, as a part of blocking the impact sound, the thickness of the floor is limited to 210 mm or more for wall-type structures or weightless plate structures, and 150 mm or more for ramen structures. 58 dB or less for impact sound and 50 dB or less for heavy impact sound.

However, in spite of the floor impact sound blocking structure, it can be said that the attention and consideration of household users is one of the most important in order to reduce disputes due to noise between floors.

Accordingly, in Article 3 of the "Rules on the Scope and Standards for Noise Between Floors in Apartment Houses", 'The occupants and users of an apartment house shall endeavor to keep the noise between floors in the apartment house below the standards according to [Table 1] below.' it is stipulated

Standard for noise between floors
Classification of noise between floors Standard for noise between floors weekly
06:00 to 22:00 Nighttime
22:00 - 06:00 direct impact noise 1 minute equivalent noise level 43 38 highest noise level 57 52 airborne noise Equivalent noise level for 5 minutes 45 40

However, it is difficult for users to objectively determine how much vibration within a household causes noise enough to cause inconvenience to adjacent households. As a result, in some cases, daily activities are often subject to unnecessary restrictions, and the causal relationship between activities within a household and noise generation in adjacent households is not clear, making it difficult to resolve disputes.

US 10-1268318 B1

In order to solve the above problems, the present invention provides residents with information on the noise level between floors due to activities within the household, so that they can pay attention to themselves not to cause damage to adjacent households, thereby preventing disputes due to noise between floors in advance. We would like to provide an inter-floor noise monitoring system.

Accordingly, an object of the present invention is to provide an inter-floor noise monitoring system that can prevent excessive restrictions on activities within a household for fear of causing noise damage to adjacent households.

The present invention according to a preferred embodiment is a vibration sensor installed on one side of a floor slab or wall in a multi-family house to measure the vibration of a frame, a housing that is embedded in an outlet pre-formed in the frame, a housing in which the vibration sensor is accommodated, the housing A cover plate coupled to the front surface of the unit and exposed into the household, a body portion formed in a U-shape, both ends coupled to the rear side of the housing, and a U-shaped contact portion protruding outward from the center of the body portion and in close contact with the frame surface. a vibration sensor assembly including a vibration transmission plate as a member; and an analysis module for classifying the vibration level by comparing the vibration data received from the vibration sensor with a preset reference value as provided in the wall pad installed in the household, and a signal to the display unit of the wall pad according to the vibration level by receiving a signal from the analysis module a data processing unit including a main signal output module for outputting ; It provides an inter-floor noise monitoring system, characterized in that it consists of.

In the present invention according to another preferred embodiment, the vibration sensor assembly is installed in at least two places, and the vibration sensor assembly receives a signal from the main signal output module of the data processing unit and sends a signal to the display unit of the vibration sensor assembly according to the vibration level. It provides an inter-floor noise monitoring system, characterized in that it includes a unit signal output module for outputting.

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The present invention according to another preferred embodiment provides an inter-floor noise monitoring system, characterized in that a sound-absorbing pad is provided between the cover plate and the housing.

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In the present invention according to another preferred embodiment, the analysis module of the data processing unit converts the vibration level into a converted vibration level that is the noise level at the reference point of the adjacent generation according to the installation position of the vibration sensor assembly. A monitoring system is provided.

In the present invention according to another preferred embodiment, the vibration sensor assembly is installed in at least two places, and the analysis module of the data processing unit tracks the position according to the correlation of the vibration data measured by each vibration sensor, and the position with It provides an inter-floor noise monitoring system, characterized in that it corrects the noise level of the reference point in the lower-floor household according to the

According to the present invention, the vibration data measured by the vibration sensor of the vibration sensor assembly installed on one side of the floor slab or wall in the apartment house is compared with a reference value in the analysis module provided in the data processing unit of the wall pad to classify the vibration level, and It is possible to provide an inter-floor noise monitoring system that is output to the display unit of the pad.

Accordingly, residents can recognize the level of noise level between floors due to activities within the household and take care not to damage adjacent households, prevent disputes due to noise between floors, and prevent excessive restrictions on activities within the household. .

1 is a plan view showing an apartment house in which the present invention inter-floor noise monitoring system is installed.
Figure 2 is a block diagram showing the present invention inter-floor noise monitoring system.
3 is a perspective view showing a vibration sensor assembly;
4 is an exploded perspective view showing a coupling relationship of a vibration sensor assembly;
5 is a cross-sectional view showing a floor slab on which a vibration sensor assembly is installed.
6 is a cross-sectional view showing a wall on which the vibration sensor assembly is installed.
7 is a perspective view showing a vibration transmission plate.
8 is a view showing an installation position and an excitation method of the vibration sensor assembly.
9 to 16 are graphs showing a corresponding floor vibration level and a lower floor noise level according to each load.

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

1 is a plan view showing an apartment house in which the noise monitoring system between floors of the present invention is installed, and FIG. 2 is a block diagram showing the noise monitoring system between floors of the present invention.

As shown in FIGS. 1 and 2, the present invention interfloor noise monitoring system is installed on one side of the floor slab 11 or wall 12 in the apartment house 1, and a vibration sensor 21 for measuring the vibration of the frame. ) including a vibration sensor assembly (2); and an analysis module 311 and the analysis module 311 for classifying the vibration level by comparing the vibration data received from the vibration sensor 21 with a preset reference value to be provided in the wall pad 3 installed in the household 1 ) a data processing unit 31 including a main signal output module 312 for receiving a signal from and outputting a signal to the display unit 30 of the wall pad 3 according to the vibration level; It is characterized in that it is composed of

The present invention provides residents, such as apartment houses, with information on the noise level between floors due to activities within each household, so as not to cause damage to adjacent households, to prevent disputes due to noise between floors in advance, and to prevent noise damage to adjacent households. We would like to provide an inter-floor noise monitoring system that can prevent excessive restrictions on activities within the household due to concerns.

The inter-floor noise monitoring system of the present invention is configured to include a vibration sensor assembly (2) and a data processing unit (31) provided in the wall pad (3).

The vibration sensor assembly 2 is installed on one side of the floor slab 11 or the wall 12 near the floor slab 11 in the apartment house 1 .

The vibration sensor assembly 2 can be embedded in the floor slab 11 or the wall 12, and is preferably installed in the living room where the noise and vibration inducement effect during excitation is the greatest.

The vibration sensor assembly (2) has a vibration sensor (21) for measuring the fine vibration of the frame due to the user's activity in the household (1) is mounted therein.

The vibration sensor 21 can be miniaturized and a low-cost MEMS vibration sensor can be used.

The data measured by the vibration sensor 21 is converted into a frequency by a Fast Fourier Transform (FFT) function in the preprocessing module and used for vibration analysis.

The vibration sensor assembly 2 transmits the vibration data measured by the vibration sensor 21 to the data processing unit 31 built in the wall pad 3 installed in the household 1 .

The data processing unit 31 is provided in the wall pad 3 installed in the household 1 .

The data processing unit 31 is configured to include an analysis module 311 and a main signal output module 312 .

The analysis module 311 classifies the vibration level by comparing the vibration data received from the vibration sensor 21 with a preset reference value.

The reference value may be set in plurality to classify the vibration level for each section. For example, the vibration level can be classified into a silent level, a daily noise level, and a warning level (when the legal level is exceeded).

The vibration level can be classified according to various criteria, such as the number of times the allowable vibration level is exceeded per unit time, and the duration of the vibration, as well as the magnitude of the vibration.

A user or an administrator may arbitrarily adjust the vibration level level in the data processing unit 31 . For example, it can be adjusted to Off, Insensitive, Normal, Sensitive, etc.

The main signal output module 312 receives a signal from the analysis module 311 and outputs a signal to the display unit 30 of the wall pad 3 according to the vibration level classification.

The output signal such as the vibration level may be an image signal or an audio signal through color change.

Accordingly, the user can self-recognize the level of vibration within the household 1 and self-restraint the vibration-inducing behavior.

The vibration sensor assembly 2 is installed in at least two places, and the vibration sensor assembly 2 receives a signal from the main signal output module 312 of the data processing unit 31 and receives a signal from the vibration sensor assembly 2 according to the vibration level. ) may include a unit signal output module 271 for outputting a signal to the display unit 20 .

Since the degree of inducing inter-floor noise in adjacent households varies depending on the location of the excitation point, the vibration sensor assembly 2 may be installed at a plurality of locations.

In this case, the display unit 20 is installed in each vibration sensor assembly 2 , and the unit signal output module 271 of the unit data processing unit 27 outputs the main signal provided in the data processing unit 31 of the wall pad 3 . It is possible to receive a signal from the module 312 and output a vibration level signal of the corresponding vibration sensor assembly 2 to the display unit 20 .

In each vibration sensor assembly (2), the closer to the excitation point, the larger the measured vibration value appears. Therefore, by individually displaying the vibration level in each vibration sensor assembly (2), it is possible to display a warning signal to the user more directly when the vibration level is close to the excitation point.

The vibration sensor assembly 2 and the wall pad 3 may be connected by wire to transmit/receive signals to each other, or may use wireless communication such as Bluetooth Low Energy (BLE), which is a low-power short-range wireless communication technology.

3 is a perspective view illustrating a vibration sensor assembly, and FIG. 4 is an exploded perspective view illustrating a coupling relationship of the vibration sensor assembly. And FIG. 5 is a cross-sectional view showing a floor slab on which the vibration sensor assembly is installed, and FIG. 6 is a cross-sectional view showing a wall on which the vibration sensor assembly is installed.

3 to 6 , the vibration sensor assembly 2 is embedded in the vibration sensor 21, an outlet pre-formed in the frame, and the vibration sensor 21 is accommodated in a housing 22 and It may be composed of a cover plate 23 coupled to the front surface of the housing 22 and exposed into the household (1).

The vibration sensor assembly 2 may be configured by embedding the vibration sensor 21 in the housing 22 and coupling the cover plate 23 to the front surface.

The housing 22 is a part that is boxed out in the frame and embedded in a pre-formed outlet. The cover plate 23 is a part coupled to the front surface of the housing 22 and fixed to the front surface of the frame.

The display unit 20 of the vibration sensor assembly 2 may be provided on the surface where the cover plate 23 is exposed into the household 1 to display the vibration level.

5 and 6 show an embodiment in which the vibration sensor assembly 2 is installed in the floor slab 11 and the wall 12, each of which is a frame.

The floor slab 11 may be provided such that the slab frame 111, the cushioning material 112, and the finishing mortar 113 are sequentially stacked, and the vibration sensor assembly 2 may be located inside the finishing mortar 113. have.

In addition, the housing 22 processes the data of the vibration sensor 21 and transmits it to the data processing unit 31 of the wall pad 3 , receives the signal from the data processing unit 31 and transmits the vibration level to the display unit 20 . The PCB 26 on which the unit data processing unit 27 for output is mounted may be accommodated.

3 and 4 , a sound absorbing pad 24 may be provided between the cover plate 23 and the housing 22 .

Unlike the impact sound caused by the direct frame impact, the airborne sound has very little effect on causing vibration noise to neighboring households. Therefore, in order to block the change in the vibration measurement value due to the air transmission sound and measure only the frame vibration due to the impact sound, a sound-absorbing pad 24 such as a sound-absorbing plate may be installed on the rear surface of the cover plate 23 .

Accordingly, even if an external sound is transmitted to the cover plate 23 exposed into the household 1, the influence of the external sound is blocked on the vibration sensor 21 inside by the sound absorption of the sound-absorbing pad 24.

The side of the sound-absorbing pad 24 may be configured to display a vibration level on the rear surface of the edge of the cover plate 23 by mounting an LED module as a display unit.

7 is a perspective view showing a vibration transmission plate.

As shown in FIG. 7 and the like, the housing 22 may be provided with a vibration transmission plate 25 having one side in contact with the frame.

When the housing 22 of the vibration sensor assembly 2 is inserted into the outlet formed in the frame, the housing 22 may be spaced apart from the inner surface of the outlet due to a construction error or the like. In this case, the vibration sensor 21 in the housing 22 may not properly measure the vibration of the frame.

Therefore, in order to transmit the vibration of the frame directly to the housing 22 so that the vibration sensor 21 can accurately measure the vibration, a vibration transmission plate 25 having one side in close contact with the surface of the frame is provided in the housing 22. can

The vibration transmission plate 25 is formed in a U-shape as a whole so that both ends of the body portion 251 are coupled to the rear side of the housing 22, and the C-shape protrudes outward from the center of the body portion 251 and is in close contact with the frame surface. It may be configured as a contact portion 252 having a shape.

The vibration transmission plate 25 is composed of a member having elasticity and can be deformed in response to the distance gap between the housing 22 and the frame surface, so that the contact portion 252 can be configured to always maintain a state in close contact with the frame surface. have.

The analysis module 311 of the data processing unit 31 may convert the vibration level into a converted vibration level that is a noise level at a reference point of an adjacent generation according to the installation position of the vibration sensor assembly 2 .

Even in the case of an impact sound of the same size, the generation of vibration and noise induced in adjacent households is different depending on the location of the excitation point.

Accordingly, the analysis module 311 of the data processing unit 31 may be configured to convert the vibration level into a converted vibration level that is a vibration level expected in an adjacent generation in consideration of the installation position of the vibration sensor assembly 2 .

To this end, the vibration level of the reference point of the adjacent generation according to each excitation point is measured and stored separately in the vibration DB, and the analysis module 311 searches the vibration level value of the reference point according to the position of the vibration sensor assembly 2 in the vibration DB. By doing so, it is possible to output the converted vibration level, which is the final vibration level.

Here, it is preferable that the adjacent generation be set as the lower layer most affected by the impact sound generation generation.

8 is a view showing an installation position and an excitation method of the vibration sensor assembly, and FIGS. 9 to 16 are graphs showing a corresponding floor vibration level and a lower floor noise level according to each load.

The vibration sensor assembly 2 is installed in at least two places, and the analysis module 311 of the data processing unit 31 tracks the position it has according to the correlation of the vibration data measured by each vibration sensor 21 and , can be configured to correct the noise level of the reference point in the lower floor household (1) according to the position.

The vibration sensor assembly 2 is fixedly installed at a specific position. On the other hand, the location with the impact sound is not only located at various points in the household 1, but also may occur while the impact sound moves, and the plane of the household is also arranged in various shapes. Therefore, the vibrations or noises caused by neighboring households are affected by these various factors.

However, there is a practical difficulty in installing the vibration sensor assembly (2) at all positions in the household (1).

Accordingly, when the vibration sensor assembly 2 is installed to be spaced apart from two or more positions, the vibration data of each vibration sensor assembly 2 is generated in various combinations depending on the position of the excitation point or whether the excitation point moves, and through this It is possible to estimate the position of the point and whether the excitation point moves. Therefore, it is possible to estimate the noise level of an adjacent household using this combination.

8 shows the installation position of the vibration sensor assembly 2 and the position and method of the vibration sensor assembly 2 .

In FIG. 8, each number indicates various excitation positions and methods as follows.

①, ③: vertical running load on the lower part of the wall,

②: The load of straight jumping in the vertical direction in the center of the living room,

④: load of straight jumping in the central part of the living room,

⑤: Maximum distance within the household (kitchen-living room) jumping load,

⑥, ⑦: run in place near the vibrating assembly,

⑧: Jump in place in the center of the living room.

As shown in ① to ⑧ of FIG. 8 , the results of measuring vibrations at two points for various loads are sequentially shown in FIGS. 9 to 16 .

9 to 16, (a) and (b) represent the corresponding floor vibration level and the lower floor noise level, respectively.

It can be seen that the corresponding floor vibration level shows different results and combinations of two vibration sensor measurement values for each load, and accordingly, the lower floor noise level also occurs differently.

Based on these actual measurement results, the correlation between vibration value-noise level, vibration value-with location and method can be extracted and stored in the vibration DB.

The analysis module 311 of the data processing unit 31 searches the vibration DB for noise level data matching the corresponding vibration level with respect to the vibration data measured by the plurality of vibration sensor assemblies 2, and matches the calculated expected noise A warning may be displayed to the user through the main signal output module 312 based on the level.

Accordingly, more precise noise level estimation is possible. That is, the position and method and the noise level of the lower floor can be calculated from the measurement values of the two vibration sensors.

The data processing unit 31 of each generation 1 may be configured to be able to communicate with the management server.

In this case, the management server can prepare for the occurrence of disputes due to noise between floors by collecting vibration data of each household (1).

In addition, the vibration data resulting from an earthquake has a certain correlation with the vibration values generated within each household (1), and the pattern is different from the impact sound individually generated within each household (1).

Therefore, the management server may collect the vibration data of each household (1), determine whether an earthquake occurs, and use it as basic data for preemptive measures.

1: Generation 11: Slab
111: slab frame 112: cushioning material
113: finishing mortar 12: wall
2: vibration sensor assembly 20: display part
21: vibration sensor 22: housing
23: cover plate 24: sound absorption pad
25: vibration transmission plate 251: body part
252: contact 26: PCB
27: unit data processing unit 271: unit signal output module
3: wall pad 30: display
31: data processing unit 311: analysis module
312: main signal output module

Claims (7)

The vibration sensor 21 installed on one side of the floor slab 11 or the wall 12 in the apartment house (1) to measure the vibration of the frame, the vibration sensor 21 to be embedded in the outlet pre-formed in the frame A housing 22 in which is accommodated, a cover plate 23 coupled to the front surface of the housing 22 and exposed into the household 1, and a body portion formed in a U-shape, both ends of which are coupled to the rear side of the housing 22 ( 251) and a vibration sensor assembly (2) including a vibration transmission plate 25 which is an elastic member composed of a U-shaped contact portion 252 that protrudes outward from the center of the body portion 251 and is in close contact with the frame surface; and
An analysis module 311 and the analysis module 311 for classifying the vibration level by comparing the vibration data received from the vibration sensor 21 with a preset reference value as provided in the wall pad 3 installed in the household 1 a data processing unit 31 including a main signal output module 312 that receives a signal from and outputs a signal to the display unit 30 of the wall pad 3 according to the vibration level; Inter-floor noise monitoring system, characterized in that it consists of.
In claim 1,
The vibration sensor assembly 2 is installed in at least two places, and the vibration sensor assembly 2 receives a signal from the main signal output module 312 of the data processing unit 31 and receives a signal from the vibration sensor assembly 2 according to the vibration level. ) of the unit signal output module (271) for outputting a signal to the display unit (20), interfloor noise monitoring system, characterized in that it is included.
delete In claim 1,
An interfloor noise monitoring system, characterized in that a sound-absorbing pad (24) is provided between the cover plate (23) and the housing (22).
delete In claim 1,
Interfloor noise, characterized in that the analysis module 311 of the data processing unit 31 converts the vibration level into a converted vibration level that is the noise level at the reference point of the adjacent household according to the installation position of the vibration sensor assembly 2 monitoring system.
In claim 6,
The vibration sensor assembly 2 is installed in at least two places, and the analysis module 311 of the data processing unit 31 tracks the position it has according to the correlation of the vibration data measured by each vibration sensor 21 and , an inter-floor noise monitoring system, characterized in that it corrects the noise level of a reference point in the lower-floor household (1) according to the position.

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