JP2003050154A - Method for specifying cause of rumbling of house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method which eliminates anxiety, with reference to the rumble of a house of a resident and which specifies the cause of the rumble of the house, so as to take measures for reducing the generation frequency or the sound-pressure level of the rumbling of the house. SOLUTION: A first detection part (1), which detects the state of vibration, strain or the like of a member and a microphone (3), which captures rumbling of the house are arranged in a place estimated to be the generation source of the rumble of the house, a second detection part (2) which detects the generation cause of the rumble of the house such as temperature, humidity or the like is installed, detection data by the first and second detection parts (1), (2) are recorded in a time-series manner, a sound captured by the microphone (3) is recorded in a time-series manner, and the recorded detection data are compared with the generation state of the recorded sound.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for identifying the cause of a house squeaking noise called house noise.

[0002]

2. Description of the Related Art One of the problems associated with housing is the ringing of the house. This house squeal is caused by the displacement and vibration of members at various parts of the house due to the action of external force such as temperature change, drying, and wind force.

[0003] To give some examples, for example, a frictional sound and a temperature when a contact surface at a joint between members or a contact surface is displaced due to stress strain caused by expansion and contraction of members constituting a structural body due to temperature change. Due to expansion and contraction of members due to changes, various noises such as indoor ceiling, outer wall, vanity difference, balcony, glass doors and window frames, eaves gutters, noise when wood is cracked by drying, wind force There is a sound such that the brace intersection is displaced when is deformed.

[0004] Home squealing usually occurs in some form, but if it occurs frequently, there is a resonance material, the radiation efficiency is good and it is amplified, and it may exceed a certain sound pressure level. , It sometimes gave fear to the residents of the house that it might be structurally defective.

[0005]

However, at present, no method or apparatus has been established for identifying in which part of the house the house ringing is caused and by what factors. For this reason, it is difficult to properly respond to consultations and complaints from the resident regarding the ringing of the house, and the anxiety of the resident cannot be eliminated.
Moreover, it was not possible to take appropriate measures to reduce the frequency of occurrence of house squealing and the sound pressure level.

In view of the above, the present invention identifies the cause of house squealing in order to eliminate the resident's anxiety about house squealing and to take measures to reduce the frequency of occurrence of house squealing and the sound pressure level. The purpose is to provide a method.

[0007]

In order to solve the above-mentioned problems, a method for identifying the cause of a house squeal of the present invention is a first detection unit for detecting a state of vibration or distortion of a member, and a microphone for capturing the house squeal. And a second detection unit for detecting factors such as temperature and humidity, which are expected to be sources of house squealing.
Also, the detection data of the second detection unit is recorded in time series, and the sounds captured by the microphone are recorded in time series so that the recorded detection data and the occurrence status of the recorded sound are matched. It is characterized by As the second detection unit, an anemometer may be used in addition to the temperature sensor and the humidity sensor.

Further, a vibration sensor for detecting the vibration of the member, a temperature sensor for detecting the surface temperature of the member, and a microphone for taking in the house noise are arranged at a place predicted to be the source of the house noise, and the vibration sensor and the temperature are measured. The detection data of the sensor is recorded in time series, the sound captured by the microphone is recorded in time series, and the recorded detection data is compared with the occurrence status of the recorded sound. To do.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a measuring device used to identify the cause of house noise. This measuring device includes a first detection unit (1) for detecting the state of a member.
And a second detection unit (2) for detecting the cause of the noise of the house
And a microphone (3) for capturing house noise.

A vibration sensor (vibration pickup) for detecting the vibration of the member is used as the first detector (1). This vibration pickup (1) is connected to a sound level meter (6) through a preamplifier (5). And sound level meter (6)
On the AC output side of the, a level recorder as a recording unit
(7) is connected so that the detection data, that is, the vibration level data from the vibration pickup (1) is recorded in time series. A controller (8) is connected to the DC output side of the sound level meter (6).

As the first detector (1), a strain gauge for detecting the stress strain of the member may be used in addition to the vibration pickup (1). In this case, the strain gauge is connected to a data logger as a recording unit to record the detection data from the strain gauge in time series.

A temperature sensor (10) for detecting the surface temperature of the member, a humidity sensor (11) for detecting the humidity around the member, and an anemometer (12) are used as the second detector (2). Has been done. The temperature sensor (10) and the humidity sensor (11) are of a type using a thermocouple, for example.

The temperature sensor (10), the humidity sensor (11) and the anemometer (12) are connected to a data logger (13) as a recording unit. Therefore, the detection data from the temperature sensor (10), the humidity sensor (11) and the anemometer (12) are recorded by the data logger (13) in time series.

The microphone (3) is connected to a digital audio tape recorder (15) as a recording section. Therefore, the sound of the house ringing captured by the microphone (3) is recorded by the tape recorder (15) in time series. In addition, tape recorder (15)
Is connected to the controller (8), and only when the vibration pickup (1) detects a vibration level above a certain level,
The controller (8) sends a start signal to the tape recorder (15) to control the recording of the house ringing, and recording is performed only when the house ringing is predicted to occur. The recording time can be shortened.

Next, a method for identifying the cause of house squeal using the measuring device having the above-described structure will be described. First, we estimate the source of house noise by hearing from residents. And
As shown in FIG. 2, the vibration sensor (1), the temperature sensor (10), the humidity sensor (11), and the microphone (3) are attached to the members at the locations predicted to be the sources of house squealing.
Further, the wind anemometer (12) is attached to, for example, the rooftop.

Upon completion of such an arrangement, detection of temperature, humidity, vibration, and squealing noise is started at each location, wind direction and wind speed are also detected at the same time, and these detection data are recorded in time series. Are recorded in chronological order. Such a measurement is continuously performed for several hours, preferably 24 hours.

When the measurement is completed, the detection data recorded at each location and the recorded sound are processed and output as a graph or table for each location. For example, for the vibration level data, the level recorder (7) outputs a graph as shown in FIG. 3, and the temperature data and the humidity data are processed by a personal computer (not shown) connected to the data logger (13). The graphs shown in FIGS. 4 and 5 are output, and the recorded sound is processed by a personal computer (not shown) connected to the digital audio tape recorder (15) and the graph shown in FIG. 6 is output. To do.

Then, using these graphs, the recorded various detection data are compared with the recorded sound generation status, and the location and the cause of the house squealing are specified. For example, referring to the graphs of FIG. 3 to FIG. 6, the vibration level greatly changes in response to the rise and fall of the temperature, and the sound pressure level of the house ringing increases with the change of the vibration level. It can be seen that these have a correlation. Therefore, it is possible to specify that the ringing of the house is occurring due to the expansion and contraction of the member due to the temperature change at the measurement points where the graphs of FIGS. 3 to 6 are obtained.

This is merely an example. For example, if there is a correlation between the humidity change and the vibration level and the sound pressure level, it can be specified that the house squeal is occurring due to the drying of the member due to the humidity change, or the wind direction. If there is a correlation between the wind speed, the vibration level, and the sound pressure level, it can be specified that the house squeal is occurring due to the deformation of the member due to the wind load. Furthermore, if a strain gauge is attached and the detection data obtained from this strain gauge, that is, the condition of stress strain of the member is also taken into account, more detailed cause identification becomes possible.

The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention.

[0021]

As is apparent from the above description, according to the present invention, at the place where the source of the house squeal is predicted, the house squeal is recorded, and at the same time, the vibration of the member, the distortion, etc., and further Since the generation factors are detected and matched with each other, it is possible to identify in what part of the house the house noise is caused and by what factors. As a result, it is possible to eliminate the anxiety of the residents of the house with respect to the ringing noise, and it becomes easy to take appropriate measures for reducing the frequency of occurrence of the ringing noise and the sound pressure level based on the specific result.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a measuring device used in a method for identifying a cause of house squeaking according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state of arrangement of sensors and microphones at various points in a house.

FIG. 3 is a diagram showing a graph showing vibration level data.

FIG. 4 is a diagram showing a graph showing temperature data.

FIG. 5 is a diagram showing a graph showing humidity data.

FIG. 6 is a graph showing a sound pressure level of house noise.

[Explanation of symbols]

(1) First detector (vibration sensor) (2) Second detector (3) Microphone (10) Temperature sensor (11) Humidity sensor (12) Wind direction anemometer

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masayuki Kuromi             Sekisui Ha 1-88 Oyodo Naka 1-chome, Kita-ku, Osaka City             Inside Us Co., Ltd. F-term (reference) 2E001 DF01 FA04 FA14 FA18 FA32                       FA71 QA02                 2G064 AA05 AB15 AB24 BA28 CC13                       CC46 CC47 CC61                 5D015 AA06 KK02                 5D017 BC01

Claims (3)

[Claims] 1. A first detection unit for detecting a state of vibration or distortion of a member, and a microphone for capturing house noise are arranged at a place where a source of house noise is predicted, and further, temperature, humidity, etc. The second for detecting the cause of house squealing
A detection unit is provided to record the detection data of the first and second detection units in time series, and the sound captured by the microphone is recorded in time series to detect the recorded detection data and the recorded sound. A method for identifying the cause of house squeal, which is characterized by matching the occurrence situation. 2. The method for identifying the cause of house squealing according to claim 1, wherein an anemometer is used as the second detector in addition to the temperature sensor and the humidity sensor. 3. A vibration sensor for detecting the vibration of a member, a temperature sensor for detecting the surface temperature of the member, and a microphone for taking in house noise are arranged at a location predicted to be the source of house noise, and the vibration sensor and the temperature are measured. The detection data of the sensor is recorded in time series, the sound captured by the microphone is recorded in time series, and the recorded detection data is compared with the occurrence status of the recorded sound. How to identify the cause of house noise.