EP2722830A2 - Eindringungsdetektionsvorrichtung - Google Patents

Eindringungsdetektionsvorrichtung Download PDF

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Publication number
EP2722830A2
EP2722830A2 EP13188864.6A EP13188864A EP2722830A2 EP 2722830 A2 EP2722830 A2 EP 2722830A2 EP 13188864 A EP13188864 A EP 13188864A EP 2722830 A2 EP2722830 A2 EP 2722830A2
Authority
EP
European Patent Office
Prior art keywords
intrusion detection
bracket
sensor
security area
main unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13188864.6A
Other languages
English (en)
French (fr)
Other versions
EP2722830A3 (de
Inventor
Takashi Kondo
Hiroyuki Tomooka
Michinori Noguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Optex Co Ltd
Original Assignee
Optex Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optex Co Ltd filed Critical Optex Co Ltd
Publication of EP2722830A2 publication Critical patent/EP2722830A2/de
Publication of EP2722830A3 publication Critical patent/EP2722830A3/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems

Definitions

  • the present invention relates to an intrusion detection device including a plurality of intrusion detection sensors which detect an object, such as a human body, which intrudes into a security area or an alert area.
  • AIR active infrared detection system
  • PIR passive infrared detection system
  • a plurality of intrusion detection sensors are installed in accordance with the size and the shape of a site (area) where it is desired to keep a lookout.
  • the plurality of intrusion detection sensors are installed in an irregular manner or aligned horizontally or vertically (e.g., Japanese Laid-Open Patent Publication No. 2010-146289 ).
  • a method is also conceivable in which a general-purpose L-shaped angle plate is used, one portion of the L-shaped plate is fixed to a wall or the like, and two intrusion detection sensors are mounted on both surfaces of the other portion thereof, which projects outward, back to back.
  • a cover 73 provided with a lens (light-collecting section) 72 is mounted on an optical section 71 including detection elements 60, and the detection elements 60 are provided so as to be horizontally rotatable within the optical section 71.
  • the direction of a security area is variable by the horizontal rotation.
  • Figs. 10A and 10C show variable states of different areas.
  • setting of changing the direction is performed based on a sensor-mounting surface for the intrusion detection sensor 70.
  • a set direction that is changed based on the sensor-mounting surface is also displaced from the intended direction. Therefore, the necessity to accurately retain the sensor-mounting surface as a reference is great.
  • An object of the present invention is to provide an intrusion detection device that allows expansion of a security area to be easily and accurately conducted when a plurality of intrusion detection sensors are used, that allows wires for each sensor to be easily installed, and that allows waterproofness to be ensured for the wires.
  • an intrusion detection device includes: a plurality of intrusion detection sensors each configured to detect intrusion of an object into a security area and output a warning signal; and a bracket having a single device-mounting surface and a plurality of sensor-mounting surfaces on which the respective intrusion detection sensors are mounted such that predetermined angles thereof different from each other are maintained.
  • the bracket includes a hollow portion in which a wire between each intrusion detection sensor is installed.
  • the bracket since the plurality of intrusion detection sensors are mounted on the bracket in a state where predetermined angles thereof different from each other are maintained, when the plurality of intrusion detection sensors are used, it is possible to easily and accurately conduct expansion of the security area.
  • the bracket since the bracket includes the hollow portion, it is made easy to install the wire between each sensor, and the wire is not exposed to the outside. Thus, it is possible to ensure waterproofness for the wire.
  • each intrusion detection sensor includes an optical section including: a main unit which includes a detection element; and a unit holder which rotatably supports the main unit, and the security area is adjusted such that a direction thereof is changed, by rotation of the main unit.
  • the security area is adjusted such that a direction thereof is changed, by rotation of the main unit.
  • the bracket has a T shape in a planar view and includes a head and a body which projects from the head and extends in a vertical direction, and both side surfaces of the body of the bracket are the sensor-mounting surfaces. Therefore, it is possible to expand the security area with a simple configuration.
  • an intermediate box is mounted as a separate member on an end of the body of the bracket, and another intrusion detection sensor is mounted on the intermediate box such that a predetermined angle thereof different from that of each intrusion detection sensor is maintained.
  • the addition of the other intrusion detection sensor allows the security area to be further expanded.
  • the intrusion detection sensor is mounted on the body of the bracket via a battery box for wireless communication, and an upper surface of the battery box is covered with a cap. In this case, it is possible to provide an appearance in which the device body is made into an integrated body.
  • Fig. 1A is a perspective view showing an example of an intrusion detection device including a plurality of intrusion detection sensors according to a first embodiment of the present invention, as seen from its front side.
  • Fig. 1B is a perspective view of the intrusion detection device as seen from its back side.
  • Fig. 2 is an exploded perspective view of the intrusion detection device, and Figs. 3A to 3D are partial exploded views of the intrusion detection device.
  • a wired system is employed in which power supply, signal transmission, and the like in each intrusion detection sensor 1 are performed through wires.
  • two intrusion detection sensors 1 are mounted on a wall K or a pillar via a bracket 2.
  • the bracket 2 has a T shape in a planar view and includes a head 2a and a body 2b which projects outward (frontward) from the head 2a and extends in a vertical direction Y
  • a back surface of the head 2a is mounted on the wall K or the like, and the intrusion detection sensors 1 are mounted on both side surfaces of the body 2b.
  • Each intrusion detection sensor 1 is configured to employ, for example, a passive infrared detection system (PIR), and a control panel which controls the entire intrusion detection device is provided indoors (not shown).
  • a microcomputer mounted on a control board within the intrusion detection sensor 1 performs control as follows.
  • detection elements 30 Fig. 2
  • the microcomputer When detection elements 30 ( Fig. 2 ) receive far-infrared rays emitted from an object, such as a human body, which illegally intrudes into a security area W ( Figs. 5C and 5D ), and an electrical signal representing the amount of rays received is changed by a certain level or higher, the microcomputer generates a human body detection signal and outputs a warning signal so as to input the warning signal to the indoor control panel.
  • the security area W is formed by a light-collecting section such as a lens 39 and an optical section 3 including the detection elements 30 in the intrusion detection sensor 1.
  • the optical section 3 includes: a main unit 3A including the detection elements 30; and a unit holder 4 which rotatably supports the main unit 3A.
  • a configuration is provided in which the direction of the security area W is changed by horizontally rotating the main unit 3A of the optical section 3 and fixing the lens 39 provided in a cover 40 mounted on the optical section 3.
  • two PIR sensors 30 which are detection elements are provided at upper and lower locations at the front side of the main unit 3A (at the near side in the drawing).
  • the lens-equipped cover 40 which is formed so as to be integrated with the lens 39 which is divided into a plurality of segments, such as a Fresnel lens, on its front surface is fitted to the unit holder 4.
  • the unit holder 4 is screwed through a plurality of screw holes 33.
  • the security area W has a plurality of narrow areas formed by the above lens 39, which is divided into a plurality of segments.
  • the lens 39 may be provided as a member separate from the cover 40, or a mirror or the like may be used instead of the lens 39.
  • the intrusion detection sensor 1 at the far side of Fig. 2 is configured similarly to that at the near side of Fig. 2 , except that the intrusion detection sensor 1 at the far side of Fig. 2 is oriented oppositely from that at the near side of Fig. 2 .
  • the intrusion detection device in an assembly-completed state is in a form as shown in Fig. 1A and is supported by a support member such as the wall K or the pillar at an installation location where to keep a lookout for intrusion.
  • the T-shaped bracket 2 in Fig. 2 has, at a back side of the head 2a, a single device-mounting surface 2c extending in a horizontal direction X and the vertical direction Y, and is screwed at this surface 2c to the wall K through a plurality of screw holes 32.
  • Both side surfaces 2d of the body 2b which projects frontward from a center portion of the head 2a at a side opposite to the device-mounting surface 2c and extends in the vertical direction Y, are sensor-mounting surfaces on which the respective intrusion detection sensors 1 are retained.
  • the sensor-mounting surfaces 2d are accurately set as reference surfaces in advance. Thus, when the intrusion detection sensors 1 are merely mounted on the sensor-mounting surfaces 2d, for example, back to back, it is possible to accurately mount the intrusion detection sensors 1 with respect to the wall K (the device-mounting surface 2c).
  • the T-shaped bracket 2 includes a hollow portion 5 within the head 2a and the body 2b.
  • the head 2a has the plurality of screw holes 32 for mounting the T-shaped bracket 2 on the wall K.
  • the body 2b has receiving recesses 6 at both sides of the hollow portion 5 at the center, and the intrusion detection sensors 1 are received therein.
  • the hollow portion 5 and the receiving recesses 6 communicate with each other via through holes 7.
  • wires for the sensors 1 are installed within the bracket 2.
  • the T-shaped bracket 2 When the T-shaped bracket 2 is used, a position as a reference for each intrusion detection sensor 1 (the sensor-mounting surface) is allowed to be accurately retained, and it is made easy to install wires between each intrusion detection sensor, as compared to the case of using, for example, a conventional general-purpose L-shaped angle.
  • the wires for each intrusion detection sensor are installed within the bracket 2 and are not exposed to the outside. Thus, waterproof equipment for the wires is not required.
  • the main unit 3A has a halved cylinder shape at its back side, and its entirety is supported by the unit holder 4 so as to be horizontally rotatable about a rotation shaft 31.
  • the main unit 3A has, at its back side, a plurality of guide grooves 11 arranged along its circumferential direction, and the unit holder 4 in Fig. 3A has a projection 12 at its center portion.
  • the guide grooves 11 of the main unit 3A and the projection 12 constitute an angle retaining portion 15.
  • the main unit 3A is retained at an optional horizontal rotation angle by manually moving the main unit 3A in the horizontal direction and fitting the projection 12 into a certain guide groove 11.
  • rotation bearings 21 and 22 which support the main unit 3A, which rotates about the rotation shaft 31, at upper and lower locations in the unit holder 4 are provided, a display portion 23 is provided at a front side of the lower rotation bearing 22, and the rotation angle of the main unit 3A is displayed thereon.
  • the security area W is not in contact with the wall K. If the security area W is in contact with the wall K as shown in Fig. 6B , this becomes a factor in causing a false operation due to the wall surface itself, a change in its temperature, or the like.
  • a later-described configuration for automatically setting the security area W and an area offset of the security area W are provided.
  • Each intrusion detection sensor 1 includes: area adjustment portions 35 which are provided in either one of the optical section 3 or the lens 39, which is the light-collecting section, and optically adjust optical paths between both sections 3 and 39, which form narrow areas of the security area W; and a position setting portion 45 which is provided in the other of the optical section 3 and the lens 39 and engages with the area adjustment portions 35 to set the positions of the area adjustment portions 35.
  • the area adjustment portions are variable shutters 35 which optically shut (shield) an optical path that forms at least one narrow area
  • the position setting portion is a position setting rib 45 which engages with the variable shutters 35 to set the positions of the variable shutters 35.
  • a pair of the left and right variable shutters 35 in the optical section 3 each have a substantially L shape and includes a shutter piece 35a which shuts a narrow area and an extending piece 35b which extends from a part of the shutter piece 35a.
  • Each extending piece 35b is fitted into a groove of the position setting rib 45 described later, whereby the position of each variable shutter 35 is set.
  • each variable shutter 35 is provided so as to be slightly oscillatable in the horizontal direction (left-right direction), has a substantially L shape and a color which is less visible through the lens, for example, a transparent color, and is provided at both sides of the detection element 30 so as to be horizontally rotatable.
  • variable shutter 35 In each variable shutter 35, the extending piece 35b at its upper portion is fitted to the position setting rib 45, and the shutter piece 35a at its lower portion has an intrinsic shutter function.
  • the variable shutters 35 are provided at only the upper detection element 30 of the upper and lower detection elements 30.
  • variable shutters may be provided at both upper and lower detection elements 30 or only the lower detection element 30.
  • the position setting rib (cam) 45 is detachably fixed to the cover 40 and has a plurality of recesses (grooves) arranged along the direction in which the main unit 3A is rotated.
  • the position setting rib 45 has recess shapes different from each other depending on the rotation angle of each variable shutter 35.
  • a recess of the position setting rib 45 and the extending piece 35b at the upper portion of each L-shaped variable shutter 35 are fitted to each other.
  • Each extending piece 35b is provided outside a lens effective range of the cover 40, and it is possible to change the security area W without decreasing the lens efficiency.
  • Fig. 4A is a front view when, for example, the rotation angle of the main unit 3A is 0° and each detection element 30 is directed in the front direction;
  • Fig. 4C is a cross-sectional view taken along a C-C line in Fig. 4A;
  • Fig. 4B is a front view when the main unit 3A is tilted at a rotation angle of about 45°;
  • Fig. 4D is a cross-sectional view taken along a D-D line in Fig. 4B .
  • the security area W is formed as a whole such that a plurality of narrow areas A to N aligned in the horizontal direction are settable so as to correspond to a plurality of segmented lenses a to n.
  • Fig. 5A is a cross-sectional view taken along a V-V line in Fig. 1A , showing a state where the variable shutters 35 and the position setting rib 45 at the cover 40 in the case of Fig. 4A are fitted to each other.
  • the variable shutters 35 in Fig. 5A for example, as shown in Fig. 5C , a security area W composed of the narrow areas D to K is formed with respect to the lenses d to k.
  • Fig. 5B is a cross-sectional view taken along a V-V line in Fig. 1A , showing a state in Fig. 4B .
  • a security area W composed of the narrow areas H to N is formed with respect to the lenses h to n.
  • the display portion 23 displays position G.
  • the respective recesses of the position setting rib 45 have various different shapes, and each has at least one inner surface shape that allows each variable shutter 35 to be positioned within each recess in accordance with the rotation angle of the main unit 3A.
  • Each variable shutter 35 is positioned, for example, by the inner surface shape of the recess of the position setting rib 45 as shown in Figs. 5A and 5B , while being slightly oscillated (loosely fitted) left and right.
  • each variable shutter 35 with which the position setting rib 45 fixed to the cover 40 is in contact is slightly changed in angle left and right and forcibly guided to a specific recess position in the position setting rib 45.
  • the security area W in Fig. 5C no false operation is caused due to contact with the wall K.
  • the security area W is formed of the eight narrow areas D to K in a wide range equal to or larger than 90°.
  • the security area W in Fig. 5D is formed of the seven narrow areas H to N, excluding the narrow area G at its edge, in a narrow range less than 90°, since contact with the wall K occurs at its edge.
  • an area configuration is provided in which an area in the front direction is offset left and right with respect to the sensor front by arrangement of a plurality of lenses such that a desired area range is provided in response to the setting of the rotation angle of the main unit 3A.
  • the areas G and H are offset left and right by a predetermined angle (e.g., ⁇ 5° to 10°) with respect to the sensor front by the lenses g and h.
  • a predetermined angle e.g., ⁇ 5° to 10°
  • the narrow areas G and H are not offset, an area is formed at the center between the narrow areas G and H (the sensor front), and thus, when the main unit 3A is rotated, the narrow area at the sensor front is brought into contact with the wall K. If the narrow area is removed for a countermeasure against a false operation, the security area is made quite narrower than 90° by the removed narrow area. Thus, an area near the wall is excluded, and a lookout is not kept in this area.
  • the narrow area G is removed, and a desired security area W composed of the narrow areas H to N and slightly narrower than 90° is formed.
  • the variable shutter 35 is fitted to the position setting rib 45 and shuts the optical path of the lens g.
  • the combination of the area offset of the security area W, the configuration for automatically setting the area, and the T-shaped bracket allows the security area W to be adjusted such that a false operation is not caused, by removing a narrow area (the narrow areas G and H within the wall), which may cause a false operation, by the variable shutter 35 as shown in Fig. 6C . In this manner, it is possible to easily achieve both expansion of the security area W and reduction of a risk of a false operation.
  • a wireless system in which power supply, signal transmission, and the like in each intrusion detection sensor 1 are wirelessly performed, and as shown in Fig. 7A , three intrusion detection sensors 1 are mounted on a wall or a pillar via a bracket 2 having a T shape in a planar view, similarly to the first embodiment.
  • a body 2b of the T-shaped bracket 2 At both sides of a body 2b of the T-shaped bracket 2, one intrusion detection sensor 1, and one intrusion detection sensor 1, via a battery box 8, are provided.
  • another intrusion detection sensor 1 is provided via an intermediate box 9 which is a separate member.
  • the addition of the other intrusion detection sensor 1 allows the security area W to be further expanded.
  • a through hole 17 (a dotted line portion in Fig. 8 ) is provided in a front surface of the body 2b, and a cap 19 is provided at an upper portion of the body 2b. Therefore, it is possible to provide an appearance in which the device body is made into an integrated body.
  • Fig. 7B is a plan view showing a security area formed by the above three intrusion detection sensors.
  • the bracket 2 is mounted on a wall surface of the wall K near its corner, not on the tip of the corner of the wall K.
  • the bracket 2 does not greatly protrude from the corner of the wall K, and it is possible to expand the security area W as a whole, for example, to an area range of 270°.
  • Fig. 8 which is an exploded perspective view of the intrusion detection device in Fig. 7A
  • the intrusion detection sensor 1 is mounted via the battery box 8 in which a battery (not shown) for supplying power is mounted.
  • a transmitter (not shown) is also provided within the battery box 8.
  • the transmitter wirelessly transmits an alarm signal, and the alarm signal is received, for example, by a receiver (not shown) installed indoors.
  • Figs. 9A and 9B show modifications of the intrusion detection device.
  • a wired system is employed similarly to the first embodiment, and three intrusion detection sensors 1 are mounted.
  • a wireless system is employed similarly to the second embodiment, and two intrusion detection sensors 1 are mounted.
  • a plurality of intrusion detection sensors are mounted on a bracket in a state where predetermined angles thereof different from each other are maintained.
  • the bracket since the bracket includes a hollow portion, it is made easy to install wires between each sensor, and the wires are not exposed to the outside. Thus, it is possible to ensure waterproofness for the wires.
  • variable shutters are provided at the optical section and the position setting rib is provided at the cover in the above-described embodiments, the position setting rib may be provided at the optical section and the variable shutters may be provided at the cover.
  • a passive infrared detection system is employed in each intrusion detection sensor, but the present invention is not limited thereto.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
EP13188864.6A 2012-10-19 2013-10-16 Eindringungsdetektionsvorrichtung Withdrawn EP2722830A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012232272 2012-10-19
JP2013176322A JP2014099157A (ja) 2012-10-19 2013-08-28 侵入検知装置

Publications (2)

Publication Number Publication Date
EP2722830A2 true EP2722830A2 (de) 2014-04-23
EP2722830A3 EP2722830A3 (de) 2014-09-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13188864.6A Withdrawn EP2722830A3 (de) 2012-10-19 2013-10-16 Eindringungsdetektionsvorrichtung

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EP (1) EP2722830A3 (de)
JP (1) JP2014099157A (de)
ZA (1) ZA201307618B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114387749A (zh) * 2021-12-30 2022-04-22 杭州海康威视数字技术股份有限公司 入侵探测器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010146289A (ja) 2008-12-18 2010-07-01 Toyota Home Kk 防犯システム

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Publication number Priority date Publication date Assignee Title
DE3744399C2 (de) * 1987-12-29 1997-03-13 Asea Brown Boveri Strahlungsempfindlicher Schalter
DE3933796C1 (en) * 1989-10-10 1991-05-08 Paul Hochkoepper Gmbh & Co Kg, 5880 Luedenscheid, De IR alarm with tiltable housing - maintaining reception plane at right angles to observation plane
NL9101431A (nl) * 1991-08-23 1993-03-16 Bellis Freddy Lucky Detectie-eenheid.
US5757004A (en) * 1995-08-11 1998-05-26 Larry C. Y. Lee Motion detector with external range adjustment
JP3086406B2 (ja) * 1995-10-04 2000-09-11 オプテックス株式会社 受動型赤外線式人体検知装置
JP3896406B2 (ja) * 2002-04-11 2007-03-22 オプテックス株式会社 防犯用センサ装置
ITPD20020074U1 (it) * 2002-11-12 2004-05-13 Zancan Gianfranco E C Sas Rilevatore ad infrarosso, particolarmente per esterni
JP2005201754A (ja) * 2004-01-15 2005-07-28 Takenaka Engineering Co Ltd 受動型赤外線検出装置
EP2390855A4 (de) * 2009-01-22 2012-10-17 Optex Co Ltd Einbruchdetektionseinrichtung

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2010146289A (ja) 2008-12-18 2010-07-01 Toyota Home Kk 防犯システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114387749A (zh) * 2021-12-30 2022-04-22 杭州海康威视数字技术股份有限公司 入侵探测器

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ZA201307618B (en) 2014-07-30
JP2014099157A (ja) 2014-05-29
EP2722830A3 (de) 2014-09-17

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