KR200304640Y1 - A Sensing device for destruction of building - Google Patents

Abstract

The present invention discloses a building breakage detection device, in particular, a sound damage sensor is installed inside the pipe and a dustproof stand is installed below the outside of the pipe to detect that the debris falls on the pipe when the building is damaged. .

According to the present invention, due to the frequent on-site dispatch due to the false alarm of the shock sensor installed on the wall of the building, the reliability of the installed alarm system is not believed, and the intruder does not move to the site despite the situation where the intruder is attempting to intrude into the building As a result, the system detects the occurrence of theft accident and damages the wall or ceiling of the building with high reliability and informs the alarm system to prevent theft from occurring.

Description

A Sensing device for destruction of building}

The present invention relates to a building damage detection device, and more specifically, a building damage detection device that detects that debris falls on a pipe when a building is damaged by installing an acoustic sensor inside a pipe and installing a dustproof stand below the outside of the pipe. It is about.

In general, burglar alarms installed in homes, offices, arsenal and banks have been a security system for intruders from outside through windows or doors. However, there was no detection device that directly detects an intruder's part of a building, ie, a wall or ceiling, and indirectly detects an intruder. For example, many malfunctions such as construction explosion sound or vibration near a building to be protected, vibration of a car passing near a building, or an impact transmitted from adjacent floors or rooms of the same building are very low. It became.

The present invention detects an intruder from outside and drills a hole in a wall or ceiling that is part of a building, but prevents the operation of the detection device due to an impact that is not related to outside penetration and damages an actual wall or ceiling to ensure high reliability. Acoustic sensor is installed inside the long pipe where the vibration stand is installed in the lower part so that the sensing device is operated by the debris by the debris. When the wall or ceiling is damaged, the debris falling into the building impacts the pipe and the impact sound according to the impact. This is to be detected by the acoustic sensor.

At this time, since the pipe has its own resonance frequency, the sound of the resonance frequency band is better transmitted in the pipe than the sound of the low frequency band caused by other frequencies, especially external vibration, so that the low frequency below the resonance frequency band is filtered out. It is necessary to increase the reliability of.

1 is an installation of the building damage detection device according to the present invention.

Figure 2 is a perspective view of the building damage detection device according to the present invention.

3 is a cross-sectional view taken along line II-II of FIG. 2;

<Description of the code | symbol about the main part of drawing>

1: pipe 2: acoustic sensor 3: dustproof stand

4: fastening device 5: alarm generating device 6: wall

Building damage detection device according to the present invention for achieving the above object is characterized in that the installation of the acoustic sensor inside the pipe and to install a dustproof lower portion outside the pipe to detect that the debris falls on the pipe when the building breaks. . Hereinafter, the configuration and operation according to the present invention with reference to the accompanying drawings.

1 is a view illustrating the installation of a building damage detecting apparatus according to the present invention, in which a pipe 1 having a dustproof stand 3 is installed on a floor surface adjacent to a wall 6 that is a part of a building. At this time, if an intruder breaks or destroys a part of the wall 6 from the outside and drills a hole in the wall 6 to penetrate the inside, a part of the wall 6 component falls into debris. Hitting). The pipe 1 shocked by the debris vibrates the outer wall of the pipe 1, and the vibration is transmitted to the entire pipe 1 by the pipe 1. At this time, the acoustic sensor (2) attached to the wall inside the pipe (1) detects the vibration of the pipe (1), and alerts that damage to the wall (6) in the part where the pipe (1) is installed causes the debris to occur. Done. Vibration of the pipe 1 can also be detected by attaching a vibration sensor to the wall inside the pipe 1 instead of the acoustic sensor 2. Similar effects can be obtained by using a long plate instead of the pipe 1 and attaching an acoustic sensor 2 or a vibration sensor to a part of the plate.

In this case, unnecessary vibration transmitted from the outside of the pipe 1 to the pipe 1, for example, a construction explosion sound or vibration near a building to be protected, or a vibration of a car passing near a building, an impact transmitted from an adjacent floor or a room of the same building, etc. Is mainly the vibration of the low frequency band and to prevent such low frequencies from being transmitted to the pipe (1), attaching a vibration stand (3) that can block the low frequency at the bottom of the pipe (1) outside the pipe (1) The vibration transmitted to the pipe 1 is blocked, and the acoustic sensor 2 or the vibration sensor is operated only by the vibration of the pipe 1 by the debris falling directly on the pipe 1. Such a preventive bar is usually used to attach a cone of horn on a plate made of a material such as rubber, sponge. In addition, instead of the dustproof stand 3 installed under the pipe 1, a string or string is attached to both ends of the pipe 1, and the string is attached to the ceiling or wall 6 of the building so that unnecessary vibration outside the pipe 1 is caused. It is also possible to prevent this from being delivered to the pipe 1. The pipe 1 is effectively installed at regular intervals from the wall 6 so as not to react to unnecessary external vibrations.

In addition, since the pipe 1 has its own resonant frequency, the sound of the resonant frequency band is transmitted in the pipe 1 better than the sound of the low frequency band by other frequencies, in particular, external vibration, and thus the acoustic sensor 2, When the low frequency below the resonance frequency of the pipe 1 is removed from the output signal of the vibration sensor by using a high pass filter, only the output signal due to vibration caused by the debris can be output, thereby increasing the reliability of the device.

In addition, since the installed pipe 1 serves as a waveguide of sound waves, the acoustic signal once input into the pipe 1 is transmitted to the end of the pipe 1 with little loss. Therefore, if the acoustic sensor 2 installed inside the pipe 1 uses a sensor that is sensitive to the acoustic signal such as a microphone, all the acoustic signals generated around the pipe 1 may be captured and transmitted to the recording device. have.

In addition, such a pipe (1) has the advantage that the intruder who has penetrated by other paths or methods touch the pipe (1) or talk around the pipe (1) to capture such a signal and sound an alarm.

2 is a perspective view of the building damage detection apparatus according to the present invention, the acoustic sensor 2 is attached to the inner upper portion of the pipe 1 as shown in Figure 3 and the output signal of the acoustic sensor 2 is an alarm generating device (5) You can see it is entered in). The pipe 1 is generally a structure in which self-vibration is well transmitted, and the fastening device 4 attaches the same pipe 1 without the acoustic sensor 2 to either end of the pipe 1 to which the acoustic sensor 2 is attached. ), The vibration of the pipe (1) is transmitted to the acoustic sensor (2) even if the broken fragments of the building fall on the extended pipe (1) to which the acoustic sensor (2) is not attached. To be detected. Thus, a small number of acoustic sensors 2 can be installed to cover breakage of the wide building wall 6. The fastening device 4 may be composed of a bolt and a nut using a screw, or may simply be configured by attaching a small diameter pipe that can be fitted to the inside of the pipe 1 at either end.

Due to the frequent on-site dispatch caused by the false alarm of the shock sensor installed on the wall of the building, the reliability of the installed alarm system is not believed, and despite the situation where the intruder is attempting to intrude into the building, By detecting a theft accident, the damage of the building wall or ceiling with high reliability and alerting to the alarm system to prevent theft from occurring by inducing the on-site dispatch.

Claims (5)

In the building damage detection device, the acoustic sensor (2) is installed inside the pipe (1) and the dustproof stand (3) is installed on the lower part of the outside of the pipe (1) to prevent debris from falling on the pipe (1) when the building is damaged. Building breakage detection device, characterized in that for detecting. The building breakage detection device according to claim 1, wherein an interlocking device (4) is provided at both ends of the pipe (1). The building breakage detection device according to claim 1, wherein a vibration sensor is attached to the inside of the pipe (1). 4. The building damage detection device according to claim 1 or 3, wherein the output signals of the acoustic sensor (2) and the vibration sensor are removed using a high pass filter to remove low frequencies below the resonance frequency of the pipe (1). . The building breakage detection device according to claim 1, wherein a string is attached to both ends of the pipe (1) and the strap is attached to a part of the building so that the pipe (1) is suspended in the air.