JP2005004316A - Breakage detecting device for glass, and glass whose breakage can be detected - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a breakage detecting device for glass that can securely detect glass being broken when the glass is broken even partially and the glass whose breakage can be detected. <P>SOLUTION: The glass formed by arranging a transparent resin layer 12 between a couple of glass plates 10 and tempered glass 14 are arranged at a specified distance L across spacers 16 to constitute multi-layered glass. Those laminated glass and tempered glass are fixed with a frame 18 and fitted in a rail 20. An IC tag 22 is fitted on the surface of the tempered glass 14 on the side of the laminated glass. Further, a monitor device 24 is fitted to the indoor-side flank of the rail 20 and communicates with the IC tag 22. If even part of the tempered glass 14 is broken, the whole tempered glass 14 is broken into grains and the IC tag 22 fitted to the tempered glass 14 falls down to cease the communication with the monitoring device 24, which decides that the glass is broken. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a destructive detection device for detecting that a glass is broken and a glass capable of destructive detection.
[0002]
[Prior art]
Conventionally, various alarm devices for crime prevention have been proposed which detect that an opening of a house such as a window glass and a front door is opened from the outside and activate an alarm. For example, Patent Document 1 below discloses an example of an alarm device that can be easily attached to an opening of a general house.
[0003]
FIG. 3 shows a configuration example of the alarm device. In FIG. 3, a magnet 106 is attached to a glass plate 104 of a window shoji 102 attached to a window 100 of a house. Further, a reed switch 110 and an alarm device 112 are attached to the indoor side of the frame 108 of the window shoji 102, and the reed switch 110 and the alarm device 112 are connected by an electric wire 114. When the window screen 102 is opened in the direction of arrow A in the figure, the distance between the magnet 106 and the reed switch 110 is increased, the magnetic force of the magnet 106 does not act on the reed switch 110, and the reed switch 110 is turned on. When the reed switch 110 is turned on, the alarm device 112 generates an alarm to notify that the window has been opened. Thereby, it is possible to notify a suspicious person's intrusion or a visitor.
[0004]
[Patent Document 1] Japanese Utility Model Publication No. 63-195492
[Problems to be solved by the invention]
However, in the above-described conventional technique, when the glass plate 104 of the window screen 102 is partially broken, the distance between the magnet 106 and the reed switch 110 does not change, so that it cannot be detected and intrusion occurs. There was a problem of allowing intruders to enter.
[0006]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a glass breakage detection apparatus and breakage detection capable of reliably detecting breakage even when the glass is partially broken. To provide glass.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a glass breakage detecting device, comprising a strengthened glass, an IC tag attached to the strengthened glass and transmitting information stored therein when receiving a predetermined radio wave, and an IC And a monitoring device that determines that the glass has been destroyed when communication with the tag is interrupted.
[0008]
Here, it is preferable that the tempered glass is disposed on the outdoor side at a predetermined distance from another glass plate, and the IC tag is attached to the surface on the side facing the other glass plate of the tempered glass. . Further, the tempered glass is arranged on the outdoor side at a predetermined distance from a laminated glass in which a transparent resin layer is arranged between a pair of glass plates to form a multilayer glass, and the IC tag is on the laminated glass side of the tempered glass. It may be attached to the surface.
[0009]
According to each configuration described above, since the IC tag is attached to the tempered glass, even if the tempered glass is partially broken, the breakage proceeds to the entire glass, and the IC tag falls downward. As a result, communication between the IC tag and the monitoring device is interrupted, so that glass breakage can be reliably detected.
[0010]
In addition, it is a glass capable of detecting breakage, and is attached to a plate glass, a tempered glass arranged on the outdoor side at a predetermined distance from the plate glass, and a surface of the tempered glass on the plate glass side in order to detect the breakage of the tempered glass. And a detection tag. It is also preferable to use a laminated glass in which a transparent resin layer is disposed between a pair of glass plates in place of the plate glass.
[0011]
According to each of the above configurations, since the detection tag is attached to the surface of the laminated glass side of the tempered glass arranged on the outdoor side of the multilayer glass, even if the tempered glass is partially broken, the entire glass is destroyed. Since the detection tag falls downward, a glass capable of reliably detecting breakage can be realized by an appropriate monitoring device.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.
[0013]
Embodiment 1. FIG.
FIG. 1 shows a cross-sectional view of a glass breakage detection apparatus according to Embodiment 1 of the present invention. In FIG. 1, a laminated glass in which a transparent resin layer 12 is disposed between a pair of glass plates 10 and a tempered glass 14 are disposed at a predetermined distance L by a spacer 16 to constitute a multilayer glass. In this case, the tempered glass 14 is disposed on the outdoor side such as a window. The predetermined distance L is appropriately determined from the limitation of the overall thickness required for the multilayer glass. These laminated glass and tempered glass are fixed by a frame 18 and fitted into a rail 20 to be used for window glass or the like. The present invention is not limited to window glass, but can be applied to entrance doors, entrance doors, doors of doors, terrace doors, and the like.
[0014]
Further, the plate glass facing the tempered glass 14 on the indoor side is not necessarily limited to the laminated glass. For example, the tempered glass 14 may be arranged on the outdoor side with a predetermined distance L from normal plate glass or other tempered glass.
[0015]
An IC tag 22 is attached to the surface of the tempered glass 14 on the side of the laminated glass (other ordinary plate glass or other tempered glass when the laminated glass is not used). The IC tag 22 includes an IC chip and an antenna, and is configured to transmit information stored inside the IC chip when receiving a predetermined radio wave, for example, a radio wave of 2.45 GHz. This information can include an identification code of the IC tag 22 and the like.
[0016]
Moreover, a monitoring device 24 is attached to the side surface of the rail 20 on the indoor side. By transmitting radio waves to the IC tag 22 and receiving predetermined information from the IC tag 22, communication with the IC tag 22 is performed. Is going.
[0017]
When someone tries to enter the indoor through the window to which the glass breakage detection apparatus described above is installed, if someone breaks even a part of the tempered glass 14, cracks spread over the entire surface of the tempered glass 14, and the entire glass becomes granular. Destroyed. For this reason, the IC tag 22 attached to the surface of the tempered glass 14 on the laminated glass side falls to the lower side of the figure at the same time as the tempered glass 14 is broken, and communication with the monitoring device 24 is impossible. A distance arises. At this time, communication between the IC tag 22 and the monitoring device 24 is interrupted. However, when the communication with the IC tag 22 is interrupted, the monitoring device 24 determines that the glass to which the IC tag 22 is attached has been destroyed. It is configured. When it is determined that the glass has been destroyed, the monitoring device 24 is preferably configured to perform operations such as generation of an alarm alarm and transmission of information to the monitoring center. Thereby, when the glass is broken, the breakage can be reliably detected.
[0018]
In addition, as described above, when the tempered glass and the laminated glass constitute a multilayer glass, even if the tempered glass is destroyed, the laminated glass further exists on the indoor side, so that it takes time to enter. For this reason, it is possible to secure a sufficient time from the occurrence of the alarm alarm or the transmission of information to the monitoring center to the response, and the safety can be further improved.
[0019]
Embodiment 2. FIG.
FIG. 2 shows a cross-sectional view of a glass capable of breakage detection according to Embodiment 2 of the present invention, and the same elements as those in FIG. In FIG. 2, a magnet 26 is attached to the surface of the tempered glass 14 arranged on the outdoor side on the laminated glass side. A reed switch 28 is attached to a predetermined position of the rail 20. The magnet 26 and the reed switch 28 are close when the window glass is closed, the magnetic force of the magnet 26 acts on the reed switch 28, the reed switch 28 is turned off, and the distance when the window glass is opened. And the reed switch 28 is turned on. When the reed switch 28 is turned on, the information is transmitted to the monitoring device 24 by an electric wire (not shown), and the monitoring device 24 performs a predetermined operation such as generating an alarm alarm. The attachment position of the reed switch 28 is not necessarily limited to the rail 20 and may be a position close to the magnet 26 when the window glass is closed.
[0020]
As described in the first embodiment, the plate glass facing the reinforced glass 14 on the indoor side is not necessarily limited to the laminated glass. For example, the tempered glass 14 may be arranged on the outdoor side with a predetermined distance L from normal plate glass or other tempered glass.
[0021]
Also in this embodiment, if someone tries to enter the room through a window and somebody breaks even a part of the tempered glass 14, the entire tempered glass 14 is broken into particles. For this reason, the magnet 26 attached to the surface of the tempered glass 14 on the side of the laminated glass is dropped at the same time as the tempered glass 14 is broken, and the magnetic force of the magnet 26 acts between the reed switch 28 and the magnet 26. An impossible distance occurs. As a result, the reed switch 28 is turned on and the information is transmitted to the monitoring device 24. Thereby, the monitoring device 24 can detect the breakage of the window glass in the same manner as when the window glass is opened. As described above, the magnet 26 functions as a detection tag for detecting the destruction of the window glass by the monitoring device 24.
[0022]
Further, as the detection tag, the IC tag 22 described in the first embodiment can be used instead of the reed switch 28. When the IC tag 22 is used, the reed switch 28 is not necessary, and the monitoring device 24 that can communicate with the IC tag 22 shown in FIG. 1 is used. Also in this case, as in the first embodiment, when the strengthened glass 14 is broken, the IC tag 22 falls and communication with the monitoring device 24 is interrupted, so that the monitoring device 24 detects the glass breakage.
[0023]
【The invention's effect】
As described above, according to the glass breakage detecting device of the present invention, since the IC tag is attached to the tempered glass, even if the tempered glass is partially broken, the breakage proceeds to the entire glass, and the IC tag Falls down. As a result, communication between the IC tag and the monitoring device is interrupted, so that glass breakage can be reliably detected.
[0024]
In particular, when the multilayer glass is constituted by the tempered glass and the laminated glass, even if the tempered glass is broken, the laminated glass further exists on the indoor side, so that safety can be further improved.
[0025]
In addition, according to the glass capable of detecting fracture according to the present invention, a detection tag made of a magnet or an IC tag is attached to the surface of the laminated glass side of the tempered glass arranged on the outdoor side of the multilayer glass. Therefore, even if the strengthened glass is partially broken, the breakage proceeds to the entire glass, and the detection tag falls downward. Thereby, a glass capable of reliably detecting breakage can be realized by an appropriate monitoring device.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a glass breakage detection apparatus according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of a glass capable of breakage detection according to a second embodiment of the present invention.
FIG. 3 is a diagram illustrating a configuration example of a conventional alarm device for crime prevention.
[Explanation of symbols]
10 glass plate, 12 transparent resin layer, 14 tempered glass, 16 spacer,
18 frames, 20 rails, 22 IC tags, 24 monitoring devices, 26 magnets, 28 reed switches.

Claims (5)

With tempered glass,
An IC tag attached to the tempered glass and transmitting information stored therein when receiving a predetermined radio wave;
A monitoring device that determines that glass has been destroyed when communication with the IC tag is interrupted;
A glass breakage detection apparatus comprising: 2. The glass breakage detecting apparatus according to claim 1, wherein the tempered glass is disposed on the outdoor side at a predetermined distance from another plate glass, and the IC tag is disposed on a side of the tempered glass facing the other glass plate. Glass breakage detection device, characterized by being attached to a surface. The glass breakage detection apparatus according to claim 1, wherein the tempered glass is disposed on the outdoor side at a predetermined distance from a laminated glass in which a transparent resin layer is disposed between a pair of glass plates to constitute a multilayer glass, An IC tag is attached to a surface of the tempered glass on the side of the laminated glass. A tempered glass disposed on the outdoor side with a predetermined distance from the plate glass,
A detection tag that is attached to the surface of the tempered glass on the side of the plate glass and detects the breakage of the tempered glass,
A glass capable of detecting breakage, characterized by comprising: The glass capable of destructive detection according to claim 4, wherein a laminated glass having a transparent resin layer disposed between a pair of glass plates is used instead of the plate glass.

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