JP2002027887A - System for preventing damage due to termite - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for preventing damages due to termite having such advantages that daily life is not hindered even if sensing elements are set at spots maximally affected by termite, there is no disturbance due to air noise, and spots being actually affected by termite can be sensed early and thereby a relevant action can be taken. SOLUTION: This system has sensing elements 1 embedded in a plurality of spots of the principal lumbers of a house 100 including the foundation floor assembly thereof and functioning to transduce termite damage noise to electric signals on sensing it, and a processing unit 200 where such signals are processed; wherein the processing unit 200 comprises an amplifier 20 for amplifying analog electric signals given from the sensing elements 1, a band filter 21 for eliminating unnecessary waveforms other than termite damage noise from the signals thus amplified, an A/D transducer 22 for transducing the signals passed through the band filter 21 to the corresponding digital signals, a memory mechanism 23 for storing the digital signals, an output mechanism 24 for making a monitor display, and an information processing mechanism 25 for processing the image displayed on the output mechanism 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing termite damage, and more particularly, to an apparatus for preventing termite damage, such as an entrance porch or a bathing area of a bathroom, which is most susceptible to termite damage.

[0002]

2. Description of the Related Art Conventionally, a technique described in Japanese Patent Application Laid-Open No. 3-102257 is known as a method for detecting termite damage. This technique is a method in which an acoustic emission sensor is brought into contact with a side surface of a wood to be inspected, and the activity of termite damage is detected based on the output of the sensor.

Further, Japanese Patent Application Laid-Open No. 7-255344 discloses that a vibration sound that attracts termites and causes them to eat the attractant is provided by installing a substance (attractant) that termites prefer to eat in the path of entry of the termites. A technique for detecting is disclosed.

[0004]

Problems to be Solved by the Invention
In the technology described in Japanese Patent Publication No. 7, since the sensor is in contact with the side surface of the wood to be inspected, air vibration sound on the wood surface is picked up as noise, and it is difficult to pick up only the vibration sound that termites are eating. It is. Although it is conceivable to provide a noise cut circuit, it is very difficult to cut the noise because the air noise is too large, and the cost increases.

[0005] In addition, in the case of the timber side installation type described in Japanese Patent Application Laid-Open No. 3-102257, it is difficult to install it on the entrance porch or the tataki part of the bathroom where the termites are most damaged. This is because it becomes an obstacle to daily life.

On the other hand, in a method using an attractant as described in Japanese Patent Application Laid-Open No. 7-255344, a place that is actually damaged by termites cannot be specified, and no countermeasures can be taken. Not.

[0007] Therefore, the present invention is directed to a place where the termite damage is most likely to occur even if the sensor element is installed in a place where the termite damage is most frequent, without impairing daily life and without being affected by air noise. It is an object of the present invention to provide a termite damage prevention device capable of early detection and taking countermeasures.

[0008]

The above object is achieved by the present invention described below.

[0010] (Claim 1) A sensor element for detecting and converting an erosion sound buried in a plurality of places of main wood of a house including a base floor assembly of the house into an electric signal, and processing for processing a signal of the sensor element An apparatus for preventing termite damage, comprising a part.

[0010] (2) The means for transmitting the signal of the sensor element to the processing unit is wired.
The termite damage prevention device as described.

(3) The means for transmitting the signal of the sensor element to the processing unit is wireless.
The termite damage prevention device as described.

(Claim 4) A hole slightly larger than the outer diameter of the sensor element is made in the main wood of the house, and the sensor element is covered with the wood taken out of the hole to produce a sensor element housing. The apparatus for preventing termite damage according to claim 1, wherein a sensor element housing is mounted in the hole.

(Claim 5) A hole slightly larger than the outer diameter of the sensor element is made in main wood of the house, and the sensor element is covered with wood of the same quality as the main wood to produce a sensor element housing. The apparatus for preventing termite damage according to claim 1, wherein a sensor element housing is mounted in the hole.

(Claim 6) A processing unit comprising: an amplifier for amplifying analog electric signals sent from a plurality of sensor elements; a band filter for removing an extra waveform other than the termite harmful sound from the signal amplified by the amplifier; An A / D converter for converting the signal passed through the band filter into a digital signal, a storage mechanism for storing the digital signal, an output mechanism for displaying on a monitor, and an information processing mechanism for processing an image displayed on the output mechanism. An apparatus for preventing termite damage.

(7) The apparatus for preventing termite damage according to (6), wherein the processing mechanism performs a process of monitoring and displaying a location where the sensor element is embedded.

(8) The apparatus for preventing termite damage according to the above (6) or (7), wherein the processing mechanism performs a process of displaying a termite appearance location on a monitor.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing a state in which a plurality of sensor elements are buried in a floor assembly, FIG.
(B) is a side sectional view. In FIG. 1, reference numeral 1 denotes a sensor element (hereinafter, also referred to as a sensor chip) provided in wood 2 constituting a house for detecting the damage of termites, and a piezoelectric element sensor or the like is used as the sensor element 1. For example, it is possible to use a piezoelectric element sensor that detects the transmission of the corrosion noise through wood by a piezoelectric element, converts the sound into an electric signal, and transmits the electric signal to the outside.

It is important that the sensor element 1 is buried in a piece of wood 2 having a possibility of encountering damage from damage by means of a sensor. There is a method in which a hole is provided, the sensor element 1 is mounted in the sensor hole, and the lid is densely covered with a piece of wood made of the same material as the holed wood so as not to be exposed to the outside air. In the case of a newly-built building, the sensor element 1 may be buried in advance and then assembled on the floor. In the case of a building that is immediately installed, it may be buried in a predetermined place by the above-described method. In order to completely prevent the vibration noise of air, it is preferable to use an adhesive or the like when attaching the lid of the sensor hole.

Timber having a possibility of encountering damage from damage to a house includes, for example, a floor frame in a house.
It is preferable to always install it on the entrance porch or the tataki part of the bathroom where the termites are most damaged. In addition, it can be provided on a pillar or the like above a building other than the floor frame.

FIG. 2 illustrates an example of a preferable mounting means of the sensor element. In FIG. 2, as shown in FIG. 2A, a sensor hole 3 is provided in advance in the timber 2 for floor assembly.

A sensor housing 4 that can be separately mounted in the sensor hole 3
Create The sensor element housing 4 includes a half cover 4A to which the sensor element 1 is fitted and a cover 4B. After the sensor element 1 is fitted to the half cover 4A, the cover 4A and the cover 4B are bonded. The obtained sensor element housing 4 is inserted and fixed in the sensor hole. The fixing means is not limited to bonding, but may be screwed or the like.

In the above embodiment, when the sensor element housing 4 is formed, the half cover 4A and the lid 4B are connected to the sensor holes 3A.
May be used as it is, or wood separately prepared may be used as long as the wood is of the same quality as the main wood.

In the above-described embodiment, the example in which the sensor element housing 4 is used for embedding the sensor element 1 has been described. However, the present invention is not limited to this, and a core tube (made of metal, ceramic, or the like) is embedded in the sensor hole 3. Alternatively, means for housing the sensor element 1 in the core tube may be used.

FIG. 2A shows the sensor hole 3.
However, the present invention is not limited to such a form, and may be an elongated perforated shape. The shapes of the sensor element 1 and the sensor hole 3 are not limited, and may be any of a round shape, a square shape, and the like.

As shown in FIG. 3, signals from a plurality of sensor elements in the house 100 are sent to the processing section 200. Control means in the processing section will be described with reference to FIG.

The processing section 200 includes an amplifier 20 for amplifying analog electric signals sent from the plurality of sensor elements, a band filter 21 for removing extra waveforms other than termite harmful sounds from the signal amplified by the amplifier 20, An A / D converter 22 for converting a signal passed through the band filter 21 into a digital signal; a storage mechanism 23 for storing the digital signal; an output mechanism 24 for displaying on a monitor; and processing an image displayed on the output mechanism 24. And an information processing mechanism 25.

Therefore, analog electric signals from a plurality of sensor elements (not shown) are supplied to the respective wirings 101, 101, 101,.
.. Are transmitted to the amplifier 20 via the port 201.

In the example shown in the figure, the case where only one detection signal is input to the amplifier 20 is shown, but information on which port the signal is transmitted from is sent directly to the processing mechanism 25.

Next, after the electric signal is amplified by the amplifier 20, an extra waveform is removed by the band filter 21. Next, the signal is converted into a digital signal by the A / D converter 22 and is stored in the storage mechanism 2 via the input / output board (interface) 202.
Transfer to 3.

The transferred data is processed by the information processing mechanism 25 and output by the output mechanism 24. The processing mechanism 25
In the above, it is preferable to perform a process of monitoring and displaying the location where the sensor element is embedded. Further, it is preferable that the processing mechanism 25 performs a process of displaying a termite appearance location on a monitor. Further, in the case of displaying on a monitor in the output mechanism, a method of displaying the damage sound as a waveform, a method of displaying termites in a pseudo image, and displaying the number thereof are also preferable. In the present invention, such a display is possible because the location of the sensor is clear.

Further, in the control of the present invention, a general waveform of termite damage sound is recorded, and a circuit is provided for comparing the waveform with a transmitted signal waveform to determine whether the sound is termite sound. Is preferred. If the above-mentioned monitor display is performed after making such a determination, accurate display can be performed.

From the sensor element in the house 100 to the processing unit 20
The means for transmitting the signal to 0 may be a wire, but may employ a wireless transmission method. An example in which the wireless transmission method is adopted will be described with reference to FIG.

A signal from the sensor element is sent to a transmitter 300, transmitted from a transmitting antenna 301 to an external receiver 303 by radio, and received by a receiving antenna 302. The received signal is processed by a processing unit having the same configuration as the processing unit described in FIG. In FIG. 4, the portions denoted by the same reference numerals as those in FIG.

The adoption of the above-mentioned wireless transmission system has an effect that information signals from sensor elements provided in a plurality of houses can be collectively managed at one place. For example, a whole town or city can be managed by a processing unit provided in one management center.
It can also be managed remotely via the Internet.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which a plurality of sensor elements are embedded in a floor assembly, where (A) is a plan sectional view and (B) is a side sectional view.

FIG. 2 is a view showing an example of a sensor element mounting means;
(A) shows the state before mounting, and (B) shows the state after mounting.

FIG. 3 is a configuration diagram illustrating an example of a processing unit.

FIG. 4 is a configuration diagram showing another example of a processing unit.

[Explanation of symbols]

 1: sensor element 2: wood 3: sensor hole 4: sensor element housing 100: house 101: wiring 20: amplifier 21 band filter 22: A / D converter 23: storage mechanism 24: output mechanism 25: information processing mechanism 200 : Processing unit 201: Port 202: I / O board

Claims (8)

[Claims] 1. A sensor element for detecting a corrosion sound buried in a plurality of places of main wood of a house including a base floor of a house and converting the sound into an electric signal, and a processing section for processing a signal of the sensor element. An apparatus for preventing termite damage. 2. The termite damage prevention device according to claim 1, wherein the means for transmitting the signal of the sensor element to the processing unit is wired. 3. The termite damage prevention device according to claim 1, wherein the means for transmitting the signal of the sensor element to the processing unit is wireless. 4. A sensor element housing is manufactured by making a hole slightly larger than the outer diameter of the sensor element in the main wood of the house and covering the sensor element with the wood taken out of the hole. The termite damage prevention device according to claim 1, 2 or 3, wherein a body is attached to the hole. 5. A sensor element housing is manufactured by making a hole slightly larger than the outer diameter of the sensor element in main wood of a house and covering the sensor element with wood of the same quality as the main wood. The termite damage prevention device according to claim 1, 2 or 3, wherein a body is attached to the hole. 6. An amplifier for amplifying analog electric signals sent from a plurality of sensor elements, a band filter for removing extra waveforms other than termite damage from the signal amplified by the amplifier, and the band filter. An A / D converter for converting a signal passed through the digital signal into a digital signal, a storage mechanism for storing the digital signal, an output mechanism for displaying on a monitor, and an information processing mechanism for processing an image displayed on the output mechanism. A device for preventing termite damage. 7. The termite damage prevention device according to claim 6, wherein the information processing mechanism performs a process of monitoring and displaying a location where the sensor element is embedded. 8. The termite damage prevention device according to claim 6, wherein the information processing mechanism performs a process of displaying a termite appearance location on a monitor.