JP2006236322A - Alarm device for crime prevention - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alarm device for crime prevention giving an alarm against burning breakage of a window glass or the like. <P>SOLUTION: The alarm device 10 for crime prevention comprises a temperature detection means 11 detecting infrared ray R emitted from a glass surface in the vicinity of a lock part L of window glasses P1, P2 and the like; a burning breakage determination means 32 outputting an alarm signal in a case that the change per unit time of the detected temperature is larger than a predetermined value; and a notifying means 36 giving an alarm in response to the alarm signal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention detects an intrusion theft by destroying the vicinity of a lock part of a window opening or closing means of a building, particularly a window glass or a glass door (hereinafter referred to as “window glass etc.”) of a house or office. More particularly, the present invention relates to a security alarm device that issues a warning early on the breaking of window glass or the like using a gas burner or the like.

  In recent years, crimes that have been carried out by invading buildings such as houses have been rapidly increasing, and the intrusion methods are often due to the opening of doors and windows using bars and the breaking of window glass using drivers, etc. .

  Most of the intrusions from the above-mentioned window glass, etc., do not destroy the entire window glass etc. and invade from the broken part, but destroy the vicinity of the lock part such as the window glass and insert a hand etc. from the broken part, Most of them are unlocked, opened windows or doors (hereinafter referred to as “windows”), and entered from there.

  Conventionally, as a protective measure against these intrusion techniques, a security laminated glass or the like is employed for the window glass or the like, thereby increasing the strength of the window glass or the like itself and dealing with the breaking or prying-off.

  On the other hand, an alarm device provided with a vibration sensor is attached to a window glass or the like to cope with the above-mentioned breaking or pry opening. As this type of alarm device, for example, a device described in JP-A-2003-36483 has been proposed. This alarm device includes a piezoelectric ceramic that resonates with ultrasonic waves in a preset frequency band and outputs an electrical signal, and a resonator that is connected to the piezoelectric ceramic and detects only a signal having a specific frequency component from the electrical signal. When this resonator detects a signal of a specific frequency component, it outputs an alarm signal through a timer for a certain period of time, and only destroys the window glass from vibrations of the window glass caused by other factors. A separate warning is issued.

Japanese Patent Laid-Open No. 2003-36483, page 1

  However, recently, as a means of breaking the window glass, etc., the window glass or the like is squeezed in the vicinity of the lock portion of the window glass or the like, and then cooled with a wet towel etc. The technique of breaking glass etc., inserting a hand from the location, unlocking, and opening a window etc. has appeared. At present, there is no effective prevention means against these burn-throughs, and the gas burner or torch used for the burn-off is readily available. There is concern about an increase in damage caused by

  Furthermore, such intrusion theft by burning-out is performed not only in the window glass etc. but also in opening / closing means provided in buildings such as shutters made of metal or synthetic resin, overslide doors and large doors. .

  The present invention has been made in view of such circumstances, and the glass surface in the vicinity of the lock portion of the window glass or the like so as to issue an alarm for the burning of the opening / closing means provided in the building such as the window glass. And a temperature detecting means for detecting infrared rays emitted from an opening / closing means made of metal or synthetic resin, and a burnout judging means for outputting an alarm signal when a change in the detected temperature per unit time is larger than a predetermined value; An object of the present invention is to provide an alarm device for crime prevention provided with a notifying means for issuing an alarm in response to the alarm signal.

  In addition, another object of the present invention is that, for example, when used for a sliding window having two window glasses, the two window glasses can be monitored by one alarm device. An object of the present invention is to provide an alarm device for crime prevention that can be monitored.

  The alarm device for crime prevention according to claim 1 is a temperature detecting means for detecting infrared rays emitted from the vicinity of the lock portion of the opening / closing means provided in the building, and a change per unit time of the detected temperature is a predetermined value. It is characterized by comprising burn-out determination means for outputting an alarm signal when larger, and informing means for issuing an alarm in response to the alarm signal.

    In the crime prevention alarm device according to claim 1, when the vicinity of the lock portion of the opening / closing means provided in the building is beaten with a burner or the like, the temperature in the vicinity of the lock portion rapidly increases, so that the temperature detection When the temperature detected by the means also rapidly rises per unit time and exceeds a predetermined value set in advance, an alarm signal is output by the determination means, and in response to this, a notification means (for example, an alarm buzzer) An alarm will be issued. Therefore, it is possible to issue an alarm at an early stage of the start of the hitting and prevent the opening / closing means from being broken in advance.

  The crime prevention alarm device according to claim 2 is the crime prevention alarm device according to claim 1, wherein the temperature detection means detects infrared rays emitted from a glass surface in the vicinity of the lock portion.

  In the crime prevention alarm device according to claim 1, when the glass surface in the vicinity of the lock portion such as a window glass is scooped with a burner or the like, the temperature of the glass surface in the vicinity of the lock portion rapidly increases. When the temperature detected by the detection means also rises rapidly per unit time and exceeds a predetermined value set in advance, an alarm signal is output by the determination means, and in response to this, a notification means (for example, an alarm buzzer) Will trigger an alarm. Therefore, it is possible to issue an alarm at an early stage of the beginning of squeezing and prevent glass breakage in advance.

  A security alarm device according to a third aspect of the present invention is the security alarm device according to the first or second aspect, further comprising a reflecting means for reflecting the infrared light and converging it on the temperature detecting means.

  In the crime prevention alarm device according to claim 3, since the infrared rays emitted from the glass surface in the vicinity of the lock portion can be focused by the reflection means, it is not necessary to provide a plurality of temperature detection means, and one temperature detection is possible. The temperature of the glass surface near the lock can be monitored by means.

  According to a fourth aspect of the present invention, there is provided the security alarm device according to the first to third aspects, wherein the infrared light guide path is provided on both sides of the temperature detecting means.

  In the security alarm device according to claim 4, since the infrared light guides are provided on both sides of the temperature detecting means, infrared rays emitted from the glass surfaces located on both sides of the security alarm device are detected. be able to.

  The crime prevention alarm device according to claim 5 is the crime prevention alarm device according to claim 4, wherein the light guide path is configured such that infrared rays emitted from a desired range in the vicinity of the lock portion are focused on the temperature detection means. It is characterized by being formed with an increased diameter toward the light entrance (opening).

  In the crime prevention alarm device according to claim 5, since the light guide path is formed in an enlarged diameter toward the light entrance, a desired area in the vicinity of the lock portion is detected by the temperature detecting means. It can be a range.

  The crime prevention alarm device according to claim 6 is the crime prevention alarm device according to claim 4 or 5, wherein the light guide path concentrates infrared rays emitted from a desired range in the vicinity of the lock portion on the temperature detection means. It is characterized by providing a light condensing means.

  In the alarm device for crime prevention according to claim 6, a light collecting means (for example, a predetermined light) for condensing infrared light emitted from a desired range in the vicinity of the lock portion on the temperature detecting means. Since the optical system is provided, the area detected by the temperature detecting means can be set to a desired range in the vicinity of the lock portion.

  The alarm device for crime prevention according to claim 7 is the alarm device for crime prevention according to any one of claims 2 to 6, further comprising ultrasonic detecting means for detecting a specific frequency generated when the glass is broken. The ultrasonic detection means and the temperature detection means are arranged in parallel.

  In the alarm device for crime prevention according to claim 7, since the ultrasonic detecting means for detecting a specific frequency generated at the time of breaking the glass is provided, not only to burn out the window glass, but also to break it. It is possible to cope with it, and it is possible to perform prior detection of glass breakage and detection at breakage, and to share the light guide path or the reflection means.

  An alarm device for crime prevention according to claim 8 is characterized in that in the alarm device for crime prevention according to any one of claims 1 to 7, the temperature detection means is arranged around the ultrasonic detection means.

  In the crime prevention alarm device according to claim 8, since the temperature detection means is disposed around the ultrasonic detection means, not only can the window glass or the like be broken, but also can be broken. The light guide or the reflecting means can be shared.

  A security alarm device according to a ninth aspect is characterized in that in the security alarm device according to any one of the second to eighth aspects, a heat conductive sheet is adhered to a glass surface in the vicinity of the lock portion.

  In the security alarm device according to claim 9, since the thermal conductivity of the heat conductive sheet is higher than that of glass, the quick response to the temperature change detected by the temperature detecting means is increased, and the lock Even if it is outside the desired range in the vicinity of the part, it is easy to perform detection by the temperature detecting means in the heat conductive sheet adhering part.

  A crime prevention alarm device according to claim 10 is the crime prevention alarm device according to any one of claims 1 to 10, wherein a light emitting means for confirming the infrared detection range adjacent to the temperature detection means. It is characterized by arranging.

  In the crime prevention alarm device according to claim 10, since the light emitting means can be made to emit light and the range in which the infrared rays are emitted can be visually observed, it is preferable when the crime prevention alarm device is attached in the vicinity of the lock portion. It can be installed at any position.

  The crime prevention alarm device according to claim 11 is the crime prevention alarm device according to any one of claims 1 to 10, wherein the notification means transmits an alarm signal toward an external communication line. .

  In the crime prevention alarm device according to the eleventh aspect, it is possible to know that the alarm has been issued through the external communication line even when the user is out.

  The security alarm device according to claim 12 is the security alarm device according to any one of claims 1 to 11, wherein the notification means transmits an alarm signal toward an internal security system. .

  In the security alarm device according to the twelfth aspect, when a security system is already provided in a house or the like, an alarm can be issued through the security system.

  A security alarm device according to a thirteenth aspect is characterized in that the security alarm device according to any one of the second to twelfth aspects is installed in a window fence provided in a building.

  In the crime prevention alarm device according to the thirteenth aspect, since it is housed in a window ridge, there is no possibility of dropping off due to vibration or the like, and it can be attached with a good appearance in appearance.

  According to the security alarm device according to claim 1, the temperature detecting means for detecting infrared rays emitted from the vicinity of the lock portion of the opening and closing means provided in the building, and the change of the detected temperature per unit time. Since it includes a burnout judging means for outputting an alarm signal when larger than a predetermined value and an informing means for issuing an alarm in response to the alarm signal, a portion near the lock portion of the opening / closing means provided in the building If the temperature is detected by the burner or the like, the temperature in the vicinity of the lock portion increases rapidly, so that the temperature detected by the temperature detecting means also increases rapidly per unit time and exceeds a predetermined value set in advance. Then, an alarm signal is output by the determination means, and an alarm is issued by an informing means (for example, an alarm buzzer). Therefore, it is possible to issue an alarm at an early stage of the start of the hitting and prevent the opening / closing means from being broken in advance.

  According to the security alarm device of claim 2, the temperature detection means for detecting infrared rays emitted from the glass surface in the vicinity of the lock portion, and an alarm when a change per unit time of the detected temperature is greater than a predetermined value Since it includes a burnout judging means for outputting a signal and a notifying means for issuing an alarm upon receipt of the alarm signal, if the glass surface in the vicinity of the lock part such as a window glass is scooped with a burner or the like, When the temperature of the glass surface in the vicinity of the part rises rapidly, and the temperature detected by the temperature detection means also rises rapidly per unit time and exceeds a predetermined value set in advance, an alarm signal is output by the determination means. In response to this, an alarm is issued by an informing means (for example, an alarm buzzer). Therefore, it is possible to issue an alarm at an early stage of the beginning of squeezing and prevent glass breakage in advance.

  According to the alarm device for crime prevention according to claim 3, the infrared ray emitted from the glass surface in the vicinity of the lock portion is provided by the reflection unit because the reflection unit that reflects the infrared ray and focuses it on the temperature detection unit is provided. The temperature of the glass surface in the vicinity of the lock portion can be monitored by one temperature detection means.

  According to the security alarm device of claim 4, since the infrared light guides are provided on both sides of the temperature detection means, infrared rays emitted from the glass surfaces located on both sides of the security alarm device are detected. be able to.

  According to the crime prevention alarm device according to claim 5, the light guide path is increased in diameter toward the light entrance so that infrared rays emitted from a desired range in the vicinity of the lock portion are focused on the temperature detecting means. Since it forms, the area which the said temperature detection means detects can be made into the desired range in the said lock part vicinity.

  According to the crime prevention alarm device according to claim 6, since the light guide path is provided with condensing means for condensing infrared rays emitted from a desired range in the vicinity of the lock portion on the temperature detecting means. The area detected by the temperature detecting means can be a desired range in the vicinity of the lock portion.

  According to the alarm device for crime prevention according to claim 7, further comprising ultrasonic detecting means for detecting a specific frequency generated when the glass is broken, and the ultrasonic detecting means and the temperature detecting means are arranged in parallel. It is possible to cope with not only the breaking of window glass and the like, but also the breaking of glass, and it is possible to perform prior detection of glass breaking and detection at the time of breaking, and the light guide path or reflecting means Can be shared.

  In the crime prevention alarm device according to claim 8, since the temperature detection means is disposed around the ultrasonic detection means, not only can the window glass or the like be broken, but also can be broken. The light guide or the reflecting means can be shared.

  According to the alarm device for crime prevention according to claim 9, since the heat conductive sheet is stuck on the glass surface in the vicinity of the lock portion, the heat conductivity of the heat conductive sheet is higher than that of the glass. The quick response to the temperature change detected by the means becomes high, and the detection by the temperature detecting means becomes easy at the heat conductive sheet adhering portion even outside the desired range in the vicinity of the lock portion.

  According to the crime prevention alarm device of claim 10, since the light emitting means for confirming the infrared detection range is arranged adjacent to the temperature detecting means, the light emitting means is caused to emit light, The range in which the infrared rays are emitted can be visually confirmed, and when the security alarm device is attached near the lock portion, it can be attached at a suitable position.

  According to the security alarm device of the eleventh aspect, since the notification means transmits an alarm signal toward the external communication line, an alarm can be issued through the external communication line even when the user is out. You can know what was done.

  According to the crime prevention alarm device according to claim 12, since the notification means transmits an alarm signal toward the internal security system, when a security system is already deployed in a house or the like, Can issue an alarm.

  According to the crime prevention alarm device of the thirteenth aspect, since it is housed in the window ridge, there is no risk of dropout due to vibration or the like, and it can be attached with a good appearance in appearance.

  The best mode for carrying out the present invention will be specifically described below with reference to the drawings.

(First embodiment)

  A security alarm device according to a first embodiment of the present invention is shown in FIGS. FIG. 1 is a partially cutaway perspective view of a state in which the security alarm device according to the first embodiment is attached to a window cage, and FIG. 2 is an enlarged view of a main part of the security alarm device shown in FIG. 3 is a schematic cross-sectional view of the security alarm device shown in FIG. 1, FIG. 4 is an exploded perspective view of the security alarm device shown in FIG. 1, and FIG. 5 is another security alarm. It is typical sectional drawing of an apparatus.

  In FIG. 1, WD is a sliding-type window provided in a house or office, P1 is a window glass fitted on the outside of the window WD, and P2 is a window fitted on the indoor side of the window WD. It is glass, S is a ridge of the window WD, and L is a crescent lock attached to the ridge S. And the alarm device 10 for crime prevention by 1st Embodiment is attached to the vicinity of the said lock | rock part L in the said bag S inside. Moreover, semicircular heat conductive sheets HS and HS are stuck to the vicinity of the lock portion L in the window glasses P1 and P2 from the indoor side. A1 and A2 indicate areas monitored by the pyroelectric sensor 11 described later. The monitoring areas A1 and A2 can cover a range (desired range) in which the lock portion L can be unlocked by inserting a hand through the holes when the windows P1 and P2 are broken to make holes. Good.

  2 to 4, reference numeral 11 denotes a pyroelectric sensor for detecting temperature (infrared rays) for detecting infrared rays emitted from the monitoring areas A <b> 1 and A <b> 2, and a casing 20 constituting the security alarm device 10. It is attached to the front slightly upward. Further, in the vicinity of the pyroelectric sensor 11, a light emitting diode 16 for checking the monitoring areas A1 and A2 is disposed.

  Further, on both sides of the housing 20 and on both sides of the attachment position of the pyroelectric sensor 11, substantially elliptical openings 12 for taking the infrared rays R into the housing 20 are provided, A light guide path 13 is formed which communicates with the opening 12 and converges the infrared rays R emitted from the monitoring areas A1 and A2 by constricting in a trumpet shape toward the upper surface of the housing 20. The opening 12 includes a lens 14a having a concave cross section for focusing the infrared rays R emitted from the monitoring areas A1 and A2, and a lens 14b having a convex cross section disposed close to the inside of the lens 14a. An optical system 14 is provided. The optical system 14 is formed of a synthetic resin material or the like that can transmit infrared rays, and at the end of the light guide path 13, the infrared rays R are reflected and focused toward the pyroelectric sensor 11. A concave mirror 15 is attached.

  As shown in FIG. 4, if the monitoring areas A1 and A2 can be secured by forming the light guide path 13 larger toward the opening 12, the optical system 14 is not provided. Alternatively, the pyroelectric sensor 11 may be attached at a position where the concave mirror 15 is attached without providing the concave mirror 15.

  The optical system 14 is a combination of the concave lens 14a and the convex lens 14b as appropriate. However, the present invention is not limited to this. For example, the optical system 14 may be an aspherical lens or a single lens.

  Below the opening 12 in the casing 20, two openings 17 of a long hole for collecting sound, which will be described later, are opened. In FIG. 4, reference numeral 18 denotes an ultrasonic microphone for detecting ultrasonic energy (AE (Acoustic Emission) wave) generated just before the window glasses P <b> 1 and P <b> 2 are broken. An AE wave taken into the body 20 is sensed.

  As shown in FIG. 5, the casing 20 is composed of an upper lid 21, an inner lid 22 and a main body 23 which are injection-molded with synthetic resin. The upper lid 21 bulges upward and forward. An inner lid 22 that is divided into two in the thickness direction of the bulging portion is provided on the back surface of the bulging step portion so as to be freely inserted into a box-shaped main body 23 having an open upper surface. .

  The main body 23 includes main components such as the pyroelectric sensor 11, the light emitting diode 16, a control unit (control board) 32, a power source 37, and a switch 38. On the other hand, the opening 12, the light guide path 13, and the concave mirror 15 are disposed in the bulging step portion of the upper lid 21. And since the said opening part 12 and the said light guide path 13 are divided and formed in the said upper cover 21 and the said inner cover 22, even if it is a complicated shape, it can manufacture easily by injection molding. it can.

  The opening 12 and the light guide path 13 may be formed as separate members and attached to the housing 20 so as to be swingable in the front-rear direction or the up-down direction. In this case, the monitoring areas A1 and A2 can be adjusted to be arranged at desired positions by swinging the opening 12 and the light guide path 13 in the front-rear direction or the vertical direction. Further, as shown in the perspective view of the other upper lid of FIG. 6, the concave mirror 15 formed on the back surface of the upper lid 21 is formed of a polyhedron in order to focus the infrared rays on the pyroelectric sensor 11 efficiently. May be.

  FIG. 7 is a block diagram showing an electrical configuration of the security alarm device shown in FIG. 1, and FIG. 8 is a flowchart showing an example of a processing procedure of the control unit.

  In FIG. 7, reference numeral 32 denotes a control unit. The control unit 32 includes a ROM (not shown) in which a program is stored, a CPU (not shown) that reads and executes the program from the ROM, and the execution of the program. And a one-chip microcomputer including a RAM (not shown) for recording necessary information, detected temperature data, and the like.

  The pyroelectric sensor 11 is connected to the control unit 32 via an interface circuit (including an A / D conversion circuit) 31 of the pyroelectric sensor 11, and the ultrasonic microphone 18 is The amplifier 33 is connected to a selection circuit 34 that selects a frequency for collecting sound and a signal processing circuit 35 that performs processing such as conversion of a signal that has passed through the selection circuit 34 into digital data. Further, a notification unit 36 is connected to the control unit 32.

  The control unit 32 receives the signal transmitted by processing the infrared rays detected by the pyroelectric sensor 11 by the interface circuit 31, and determines whether or not to operate the notification unit 36, or The AE wave detected by the ultrasonic microphone 18 is selected by a selection circuit 34 that sorts whether or not it is equal to or higher than a predetermined level, and the signal processed by the signal processing circuit 35 is received. It is determined whether or not to operate.

  In addition, although the said alerting | reporting means is comprised by the alarm buzzer (not shown) arrange | positioned in the said housing | casing 20, it is not restricted to this, For example, it connects to the home security system deployed in the house by radio | wireless Then, it may be configured to emit a predetermined signal toward the home security system, and further, it may be configured to transmit a predetermined signal to an indoor exchange that can be connected to a communication system outside. Good.

  Further, a battery (power source) 37 and a switch 38 are connected to the control unit 43, and the switch 38 switches the power source ON / OFF and the test mode and the monitoring mode.

  The test mode includes a test of whether or not an alarm buzzer (not shown) as the notification means 36 sounds and a mode in which the light emitting diodes are made to emit light and check the monitoring areas A1 and A2, and both modes are included. Selectable. In addition, you may set so that both may be performed sequentially. In the monitoring mode, a normal monitoring operation is performed.

  Next, an example of the processing procedure of the control unit 43 in the monitoring mode will be described based on the flowchart of FIG.

  First, infrared rays R emitted from the monitoring areas A1 and A2 are detected every predetermined time (for example, once / second) from the pyroelectric sensor 11, and temperature data is taken into the RAM of the control unit 32 (ST1). Recording (ST2). Next, the recorded temperature data is compared with a preset specified value (for example, 60 degrees Celsius), and if it is less than the specified value (NO in ST3), a data counter described later is cleared (ST4), and ST1 Return to.

  If the temperature data is greater than or equal to the specified value (YES in ST3), compared to the temperature data recorded once before (ST5), if the difference in increase is less than a predetermined value (NO in ST6), data to be described later The counter is cleared (ST4), and the process returns to ST1. If the increase difference is not less than a predetermined value (for example, 1 degree) (YES in ST6), the data counter is counted (+1) (ST7). When the data counter is counted a predetermined number of times (for example, 3 to 5 times) (YES in ST8), an alarm signal is output (ST9), and a predetermined time process (for example, the notification means sounds an alarm buzzer). If it is, the sounding of the buzzer is stopped within a predetermined time after the sounding (step ST10) and the process is terminated. If the data counter is less than a predetermined number of times (for example, 3 to 5 times) (NO in ST8), the process returns to ST1.

  In the above processing procedure, in order to prevent false reports in consideration of seasonal differences and environmental differences, a condition that the temperature is equal to or higher than a predetermined temperature (ST3) is added. Since it is generated by applying an abrupt temperature, ST3 may be omitted in the processing procedure, and the predetermined value of the increase difference may be, for example, about 2 to 5 degrees.

  Fig.9 (a) is a side view of the alarm device for crime prevention which provided the opening part in the lower surface, FIG.9 (b) is the same front view.

  In the security alarm device 10, the opening 12 is provided on both side surfaces of the housing 20, but as shown in FIGS. 9A and 9B, the opening 12 a is formed on the lower surface of the housing 20. The opening 17a may be opened. In this case, the width of the security alarm device 10 is made wider than the width of the bag S, and is opened on the protruding lower surface to take in the infrared rays R emitted from the window glasses P1 and P2.

(Second Embodiment)

  Fig.10 (a) is the front view and both-sides figure which show the alarm device for crime prevention of 2nd Embodiment, FIG.10 (b) is the typical sectional drawing. In addition, the same code | symbol is attached | subjected to the same part as the alarm device 10 for crime prevention of FIG. 1 thru | or FIG. 9, and the description is abbreviate | omitted.

  In FIG. 10, 40 is a security alarm device according to the second embodiment, 41 is an ultrasonic microphone, and 42 is a pyroelectric sensor. Since the security alarm device 40 is disposed close to the pyroelectric sensor 42 and the ultrasonic microphone 41, the AE wave detected by the ultrasonic microphone 41 is detected by the opening 12 and the light guide path 13. Therefore, the opening 17 need not be provided.

(Third embodiment)

  Fig.11 (a) is the front view and both-sides figure which show the alarm device for crime prevention of 3rd Embodiment, FIG.11 (b) is the typical sectional drawing. In addition, the same code | symbol is attached | subjected to the same part as the alarm device 10 for crime prevention of FIG. 1 thru | or FIG. 9, and the description is abbreviate | omitted.

  In FIG. 11, reference numeral 50 denotes an alarm device for crime prevention according to the third embodiment, 51 denotes an ultrasonic microphone, and 52 denotes a pyroelectric sensor. Since the alarm device 50 for crime prevention has the pyroelectric sensor 52 disposed around the ultrasonic microphone 51, the AE wave detected by the ultrasonic microphone 41, similar to the alarm device 40 for crime prevention, Since the light enters through the opening 12 and the light guide path 13, the opening 17 may not be provided.

  When the security alarm device 10 (40, 50) having the above structure is attached to the sliding window shown in FIG. 1, first, the crescent lock L is handed when a hole is opened near the crescent lock L. The heat conductive sheet HS is stuck on the window glasses P1 and P2 so as to coincide with the range. Then, the switch 38 is set to the test mode, and it is confirmed whether the built-in alarm buzzer sounds. Next, the light emitting diode is caused to emit light, and the positions of the monitoring areas A1 and A2 are confirmed, and the monitoring areas A1 and A2 and the heat conduction sheet HS are substantially overlapped (on the side S). Install. The attachment means is not particularly limited, but an adhesive layer having release paper may be provided at an appropriate position on the lower surface of the security alarm device 10 (40, 50). When the attachment is completed, the switch 38 is switched to the monitoring mode and monitoring is performed.

  In the monitoring state, the light guide path is formed with an enlarged diameter toward the opening 12 (incident port), and the optical system is disposed in the opening 12, so that the pyroelectric sensor 11 detects the area. A1 and A2 are spread over a predetermined range, and a desired range in the vicinity of the lock portion can be monitored. Further, since the light guide path is provided on both sides of the pyroelectric sensor 11, the monitoring areas A1 and A2 on both sides of the mounting position can be monitored.

  And when the glass surface near the lock part such as a window glass is struck with a burner or the like, with the rapid temperature rise of the glass surface near the lock part, an alarm signal is output by the determination means, and this is received. Alarm buzzer sounds. Therefore, an alarm can be issued at an early stage before the window glass P1, P2 at the start of breaking is broken, and the window glass P1, P2 can be prevented from being broken.

  Furthermore, since the ultrasonic microphone 18 for detecting a specific frequency generated at the time of breaking the glass is provided, an alarm signal is output not only when the window glass or the like is broken but also when broken. In response, the alarm buzzer sounds. In the case where the ultrasonic microphone 18 is disposed close to the pyroelectric sensor 11, the light guide 13 and the concave mirror (reflecting means) can be shared.

  When the heat conductive sheet HS is pasted, the heat conductivity of the heat conductive sheet HS is higher than that of glass, so that the quick response to the temperature change is high and it is out of the desired range in the vicinity of the lock part. However, it becomes easy to perform detection by the temperature detection means in the heat conductive sheet adhering portion. The shape of the heat conductive sheet HS is not limited to a semicircular shape, and may be a rectangular shape, an elliptical shape, or the like, and the shape is not limited. Moreover, it is preferable that the heat conductive sheet HS coincides with the monitoring areas A1 and A2, but it is sufficient that the desired range can be covered and does not necessarily coincide with the monitoring areas A1 and A2.

  In addition, on the back surface (surface visible from outside the room) of the heat conductive sheet HS, an appropriate display such as “in operation of the crime prevention device” may be appropriately printed. Also. The display may be changed by heating (for example, the display is changed from “active crime prevention device” to “warning alarm” by heating).

  In addition, the notification means may transmit an alarm signal toward an external communication line. In this case, it is possible to know that an alarm has been issued through the external communication line even when the user is out. Furthermore, the notification means may be configured to send an alarm signal toward the internal security system. In this case, when a security system is already deployed in a house or the like, an alarm may be issued through the security system.

(Fourth embodiment)

  FIG. 12 is a front view of a state in which a security alarm device according to the fourth embodiment is attached, FIG. 13 is an enlarged perspective view of the main part, and FIG. 14 is a schematic cross-sectional view. In addition, the same code | symbol is attached | subjected to the same part as the alarm device 10 for security of FIG. 1 thru | or FIG. 9, and the description is abbreviate | omitted.

  12 to 14, reference numeral 60 denotes a crime prevention alarm device according to the fourth embodiment. The crime prevention alarm device 60 is the crime prevention alarm device 10 shown in the first to third examples. , 40, 50, instead of being housed in the housing 20, it is housed in a hollow square-shaped ridge S <b> 1 located at the center of the sliding-type window WD.

  An opening notched in a U-shaped cross section is formed immediately above the lock portion L1 in the ridge S1, and a U-shaped lid portion 25 that matches the opening is formed on the surface of the ridge S1. It is covered so that it may become one. The lid portion 25 is fixed to the flange S1 by a locking means such as a screw, and the opening portion 12 and the opening portion 17 are provided on both side walls of the lid portion 25, respectively. A battery cover 26 for replacing the battery 37 is detachably provided on the upper wall of the cover 25. In the lid portion 25, the pyroelectric sensor 11, the light guide path 13, the optical system 14 (concave lens 14 a and convex lens 14 b), and the concave mirror 15, which are main components of the security alarm device 60, are provided. Furthermore, the light emitting diode 16, the ultrasonic microphone 18 and the switch 38 (not shown), the interface circuit 31 constituting the control system, the control unit 32, the amplifier 33, the selection circuit 34, the signal processing. The circuit 35, the notification means 36, and the like are also built in. Therefore, according to the crime prevention alarm device 60 according to the present embodiment, since it is housed in the bag S1, there is no risk of dropout due to vibration or the like, and it can be attached with a good appearance in appearance.

(Fifth embodiment)

  FIG. 15 is a front view showing a state in which the security alarm device according to the fifth embodiment is attached to the shutter, and FIG. 16 is a front view showing a state in which the security alarm device is attached to the overslide door. is there. In addition, the same code | symbol is attached | subjected to the same part as the alarm device 10 for security of FIG. 1 thru | or FIG. 9, and the description is abbreviate | omitted.

  In FIG. 15, ST is a shutter made of metal or synthetic resin, and a shutter case STC that encloses and houses the shutter ST is provided above the shutter ST. In the shutter box STC, a winding mechanism (not shown) for winding the shutter ST and the like is built in, and the shutter ST is opened and closed. On the indoor side surface of the shutter ST, there is a lock portion L3 that protrudes on both sides. Further, on both sides of the shutter ST, columns PL having guide rails (not shown) are erected.

  70 is an alarm device for crime prevention according to the fifth embodiment, and the structure of the alarm device for crime prevention 70 is substantially the same as that of the alarm device for crime prevention of the first embodiment. , 17 are closed. The security alarm device 70 having the above configuration is attached to the indoor side of one column PL at a position where at least the range A3 including the vicinity of the lock portion L3 can be monitored.

  FIG. 16 shows a state in which the security alarm device 70 is attached to an overslide door SD made of metal or synthetic resin. In the overslide door SD, the security alarm device 70 can be directly attached to the indoor side surface of the overslide door SD.

  As described above, the alarm device 70 for crime prevention according to the present embodiment is not limited to the glass surface, but the shutter ST, the overslide door SD, and the metal or synthetic resin made of metal or synthetic resin. Needless to say, it is possible to detect and report an infrared ray emitted from an opening / closing means provided in a building such as a large door made of a product, and the range of use is not limited to the opening / closing means described above.

It is a partially-cutaway perspective view of the state which attached the alarm device for crime prevention by a 1st embodiment to the fence of a window. It is a principal part enlarged view of the alarm device for crime prevention shown in FIG. It is typical sectional drawing of the alarm device for crime prevention shown in FIG. It is a typical sectional view of other alarm devices for crime prevention. It is a disassembled perspective view of the alarm device for crime prevention shown in FIG. It is a perspective view of another upper cover. It is a block diagram which shows the electric constitution of the alarm device for crime prevention shown in FIG. It is a flowchart which shows an example of the process sequence of a control part. (A) is a side view of the alarm device for crime prevention which provided the opening part in the lower surface, (b) is the same front view. (A) is the front view and both sides which show the alarm device for crime prevention of 2nd Embodiment, (b) is the same typical sectional drawing. (A) is the front view and both sides which show the alarm device for crime prevention of 3rd Embodiment, (b) is the same typical sectional drawing. It is a front view of the state which attached the alarm device for crime prevention by 4th Embodiment. It is a principal part enlarged view of the alarm device for crime prevention shown in FIG. It is typical sectional drawing of the alarm device for crime prevention shown in FIG. It is a front view which shows the state which attached the alarm device for crime prevention by 5th Embodiment to the shutter. It is a front view which shows the state which attached the alarm device for the crime prevention to the overslide door.

Explanation of symbols

WD Window P1, P2 Window glass S Sash
L lock part HS heat conduction sheet A1, A2 monitoring area R infrared ray 10 crime prevention alarm device (first embodiment)
DESCRIPTION OF SYMBOLS 11 Pyroelectric sensor 12 Opening part 13 Light guide path 14 Optical system 14a Concave lens 14b Convex lens 15 Concave mirror 16 Light emitting diode 17 Opening part 18 Ultrasonic microphone 20 Case 21 Upper cover 22 Inner cover 23 Main body 25 Cover part 26 Battery cover part 31 Interface circuit 32 Control Unit 33 Amplifier 34 Selection Circuit 35 Signal Processing Circuit 36 Notification Unit 37 Battery (Power Supply)
38 switch 40 crime prevention alarm device (second embodiment)
41 Ultrasonic Microphone 42 Pyroelectric Sensor 50 Security Alarm Device (Third Embodiment)
51 Ultrasonic microphone 52 Pyroelectric sensor 60 Crime prevention alarm device (fourth embodiment)
70 Alarm device for crime prevention (fifth embodiment)

Claims (13)

Temperature detecting means for detecting infrared rays emitted from the vicinity of the lock portion of the opening and closing means provided in the building;
A burnout judging means for outputting an alarm signal when a change in the detected temperature per unit time is larger than a predetermined value;
Informing means for issuing an alarm in response to the alarm signal;
A security alarm device characterized by comprising:   The security alarm device according to claim 1, wherein the temperature detecting means detects infrared rays emitted from a glass surface in the vicinity of the lock portion.   The alarm device for crime prevention according to claim 1 or 2, further comprising reflecting means for reflecting the infrared ray and converging it on the temperature detecting means.   The security alarm device according to any one of claims 1 to 3, wherein the infrared light guide path is provided on both sides of the temperature detecting means.   The said light guide path is formed so that the infrared rays emitted from the desired range in the vicinity of the lock portion may be enlarged toward the light entrance so that the infrared rays are focused on the temperature detecting means. Alarm device for crime prevention.   The crime prevention alarm according to claim 4 or 5, wherein the light guide path is provided with a condensing means for condensing infrared rays emitted from a desired range in the vicinity of the lock portion on the temperature detecting means. apparatus.   The ultrasonic detection means for detecting a specific frequency generated at the time of breaking the glass is further provided, and the ultrasonic detection means and the temperature detection means are arranged in parallel. Security alarm device according to any one of the above.   The security alarm device according to any one of claims 1 to 7, wherein the temperature detection means is disposed around the ultrasonic detection means.   The alarm device for crime prevention according to any one of claims 2 to 8, wherein a heat conductive sheet is attached to a glass surface in the vicinity of the lock portion.   The crime prevention alarm device according to any one of claims 1 to 9, wherein a light emitting means for confirming the infrared detection range is arranged adjacent to the temperature detection means.   The security alarm device according to any one of claims 1 to 10, wherein the notification means transmits an alarm signal toward an external communication line.   The security alarm device according to any one of claims 1 to 11, wherein the notification means transmits an alarm signal toward an internal security system. An alarm device for crime prevention, wherein the alarm device for crime prevention according to any one of claims 2 to 12 is installed in a wall of a window provided in a building.

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