EP0551175A1 - Fernsehüberwachungssystem - Google Patents

Fernsehüberwachungssystem Download PDF

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Publication number
EP0551175A1
EP0551175A1 EP93300031A EP93300031A EP0551175A1 EP 0551175 A1 EP0551175 A1 EP 0551175A1 EP 93300031 A EP93300031 A EP 93300031A EP 93300031 A EP93300031 A EP 93300031A EP 0551175 A1 EP0551175 A1 EP 0551175A1
Authority
EP
European Patent Office
Prior art keywords
infra
security system
red
irleds
camera
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Withdrawn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
EP93300031A
Other languages
English (en)
French (fr)
Inventor
Robin Ivor Trower Hogg
Geoffrey Stephen Edwards
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.)
Colebrand Ltd
Oxley Developments Co Ltd
Original Assignee
Colebrand Ltd
Oxley Developments 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
Priority claimed from GB929200194A external-priority patent/GB9200194D0/en
Priority claimed from GB929219662A external-priority patent/GB9219662D0/en
Priority claimed from GB929225794A external-priority patent/GB9225794D0/en
Application filed by Colebrand Ltd, Oxley Developments Co Ltd filed Critical Colebrand Ltd
Publication of EP0551175A1 publication Critical patent/EP0551175A1/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Withdrawn legal-status Critical Current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
    • G08B13/194—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 image scanning and comparing systems
    • G08B13/196—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 image scanning and comparing systems using television cameras
    • G08B13/19639—Details of the system layout
    • G08B13/19652—Systems using zones in a single scene defined for different treatment, e.g. outer zone gives pre-alarm, inner zone gives alarm
    • 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
    • G08B13/194—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 image scanning and comparing systems
    • G08B13/196—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 image scanning and comparing systems using television cameras
    • G08B13/19639—Details of the system layout
    • G08B13/19641—Multiple cameras having overlapping views on a single scene

Definitions

  • the present invention is concerned with security systems for use in both commercial and domestic situations.
  • NVG night vision goggles
  • a security system comprising one or more cameras or viewing devices of a type sensitive to infra-red (IR) light, and a plurality of infra-red emitting devices adapted to be mounted so as to illuminate with IR an area to be subject to surveillance by the camera(s) or viewing device(s).
  • IR infra-red
  • the infra-red emitting devices are infra-red emitting diodes (IRLEDs).
  • a plurality of IRLEDs are mounted in a length of conduit and fitted along the top, or upper region, of a fence or wall in such a way that the IR light shines generally downwards so as to be at least partially reflected forward towards the camera(s) or viewing device(s) from the fence or wall.
  • the IRLEDs are mounted in a sealed conduit using a waterproof seal, such as one of those described in European Application No. 91304471.5 (Publ. No. 0474330) to which reference is hereby directed for structure details.
  • the power distribution to the IRLEDs is carried out at low voltages via a battery (usually 12 or 18 volts d.c.) or low voltage a.c., such as 24v a.c.
  • a battery usually 12 or 18 volts d.c.
  • low voltage a.c. such as 24v a.c.
  • the invention also provides a housing containing a plurality of infra-red emitting devices which, when the housing is disposed at a region to be surveilled, are adapted to illuminate the region with IR light.
  • the housing can be in the form of a rigid, semi-rigid or flexible conduit or tube in which the infra-red emitting devices are mounted.
  • the infra-red emitting devices are preferably mounted in the conduit or tube in a waterproof manner.
  • this problem is solved by incorporating infra-red emitting devices (e.g. IRLEDs) in the surround or within the control/display panel of a cash dispenser in such a way as to be covert.
  • infra-red emitting devices e.g. IRLEDs
  • the position and number of such infra-red emitting devices is arranged to be hidden to the cash dispenser user.
  • the camera which is used to photograph users of the cash machine illuminated by the IR light can be incorporated within the housing of the cash dispenser itself or at another location in the vicinity of that housing. In the event that the camera is located within the housing it is preferably adapted to take pictures of the transactor through the wall of the housing.
  • the latter wall is preferably provided with a plurality of windows and means to operate the security camera to record an image through a selected window.
  • Means may be provided to move the camera to a selected window or means can be provided to select images received through one or more of the windows for onward processing.
  • the windows are preferably pinhole lenses.
  • Fig. 1 shows a perimeter wall or fencing 10 having mounted along its upper edge, on a flanged bracket 12, a strip 14 of infra-red LEDs (IRLEDs) 16.
  • the IRLEDs 16 can be mounted discretely in a rigid or flexible housing or, preferably are predisposed in a flexible conduit which can be laid onto the bracket 12, with or without an additional housing, so that the plurality of IRLEDs contained within the conduit illuminate the region to one side (right-hand side in Fig. 1) of the wall/fencing 10.
  • part of the IR light is reflected from the wall/fencing and redirected towards the camera(s) 18 located to one side of the surveillance area.
  • the IRLEDs should preferably be mounted in the conduit in a sealed manner, using a waterproof seal, such as that described in our above mentioned European Application No. 91304471.5 (0474330). It is also preferred for the power distribution to the IRLEDs to be at low voltage for safety reasons, with waterproof connections between lengths of conduit, if there is more that one such length.
  • One suitable low voltage can be 28 v a.c. In the case of the use of such a low voltage a.c. supply, it is then possible to drive the IRLEDs by way of a miniature transformer coupling from a single wire loop of a main, higher voltage supply.
  • An advantageous feature of the latter arrangement is that this provides a contactless power pick-up for the IRLEDs which is inherently corrosion proof and reliable. Particularly in the case of very long perimeter fencing where many sections of IRLEDs are required, this provides a particularly attractive feature to prevent connector problems which could compromise the integrity of the security system.
  • Some fencing/wall materials such as wood, do reflect infra-red efficiently so that, for example, a standard wooden lap fence provides a suitable back reflector for the infra-red light from the IRLEDs.
  • many other fencing/wall materials such as brick or concrete, do not reflect infra-red as efficiently.
  • special IR reflective paint can be used on the wall/fence surface to reflect the IR forward.
  • the camera(s) 18 have automatic light level adjustment, it is important to prevent the IRLEDs shining directly at the camera(s). This can be prevented by the use of a suitable shield around at least part of the IRLEDs, such as that shown in Fig. 2 where a skirt 20 depends from the conduit/housing so as to provide a barrier preventing direct communication between the IRLEDs and the camera(s).
  • the housing is described as being in the form of a flexible conduit in which the IRLEDs are mounted.
  • the housing can be in the form of a rigid, or semi-rigid elongate tube into the wall of which the plurality of infra-red emitting diodes are incorporated or mounted.
  • the tube in use, will be mounted in the ground in the manner of an upright post so as to illuminate with IR an area or region around the post.
  • the illuminated area can then be surveilled using an infra-red sensitive camera or cameras as described hereinbefore.
  • the cross-sectional profile of the tube is not limited to any particular shape but is preferably circular so that the IR light is emitted uniformly around the post.
  • the pipe is about 4 inches (10 cms) in diameter and of the order of 2-3 feet (60-90 cms) long, with approximately 3-6 LEDs arranged around the circumference every few centimetres or so along the length.
  • the top of the pipe is closed by a cover which can, if required, project laterally somewhat beyond the pipe wall in the manner of a "hat".
  • Power for the IRLEDs can be supplied either via a low voltage supply from a mains transformer or using internal batteries.
  • the pipe is made of a plastics material.
  • ATM automatic teller machines
  • Such machines are used by customers of banks, building societies and similar institutions to make transactions with the bank, society or institution, many of which involve the withdrawal of cash.
  • the increasing amount of fraud at cash dispensing machines has led security experts to consider means to photograph each person who makes a transaction at a machine, bearing in mind that, advantageously, this should be covert and equally that the face of the person should be well illuminated to produce a high definition photographic image for identification purposes.
  • ATMs are commonly installed either in well lit lobbies within bank or building society premises or are wall mounted externally on the street. The level of local lighting, particularly for these wall mounted machines, varies widely from almost total darkness at night to areas which are very well lit.
  • infra-red emitting devices e.g. IRLEDs
  • IRLEDs infra-red emitting devices
  • a plurality of such infra-red emitting devices are positioned and distributed over a wide area within the cash dispenser surround and/or control panel to make it very difficult for a fraudster to mask them (if the fraudster discovers their location).
  • the latter devices can be covered, for example, by an infra-red transmitting but visibly opaque plastics which hides their precise location.
  • the infra-red illumination provided by said devices has the advantage that it does not blind the normal person making use of the machine.
  • the camera or cameras which are used to photograph users of the cash machine illuminated by the IR light can be incorporated within the housing of the cash dispenser itself or at another location in the vicinity of that housing. In the event that the camera is located within the housing it is preferably adapted to take pictures of the transactor through the wall of the housing.
  • the latter wall is preferably provided with a plurality of windows and means to operate the security camera to record an image through a selected window.
  • Means may be provided to move the camera to a selected window or means can be provided to select images received through one or more of the windows for onward processing.
  • the windows are preferably pinhole lenses.
  • FIG. 3 there is illustrated one embodiment of an ATM incorporating a security camera arranged as described above.
  • a counter 22 at waist level contains a control panel 23. Close to and above this control panel there is a card receiver slot 24 and a cash dispensing slot or slots 25. Above these there is an upper panel 26 whose front is both lit from behind and printed with the bank or society's logo and name. The lower half of this panel provides conventional illumination to the operating counter.
  • the panel 26 has installed behind it a "Black-Lite" Unit consisting of a surface filter 29 which blocks natural and artificial light and behind which is a plurality of IR LEDs (infra-red light emitting diodes) 31 and a further array of similar sized apertures 32 through which a camera 27 is enabled to view the customer at the ATM.
  • a typical arrangement of the LEDs 31 and apertures 32 is illustrated in Fig. 4.
  • the camera is mounted for stepping along a track 28 so that it can be placed behind selected apertures 32 in turn, the stepping being controlled by an operator or automatically at suitable intervals.
  • the camera 27 can be any suitable type, including those using photographic film and video cameras. Especially suitable is a CCTV camera including a pinhole lens and a solid state recording plate with a suitable electronic scanning mechanism and data processing apparatus to provide a digital signal. Since these detectors are simple and cheap, it may be practical to provide a fixed detector for each window 32 and to select the window providing the image for searching by energizing a selected detector. In this case no physical camera movement is required.
  • the latter apparatus thus provides a number of camera positional options, its own independent covert illumination system and a selective filter to ensure that the customer is viewed in "Black-Lite" only, regardless of external conditions.
  • This permanent and stable level of covert illumination enables cameras to be preset to a required level of picture quality thus no longer requiring the need to fit expensive automatic iris equipment.
  • This ATM "Black-Lite” unit is thus totally self-contained and operates to a consistently high standard regardless of the vagaries in artificial or normal light. It is thus not susceptible to random sunlight, car headlights and similar fluctuations in light level.
  • the surface filter 29 of the panel is designed only to pass IR wavelengths close to those of the LEDs thus providing a simple photographic device for the purpose.
  • the camera output can be compared with a reference value and control the operation of the ATM, so that if the camera fails to take a suitable image, the customer's ATM transaction would be automatically aborted, the card retained and cash dispensation stopped.
  • the digital signal output from the camera may be processed in the normal way either at the machine or in the bank or, perhaps more advantageously, at some centralised security location.
  • the fitting of these "Black-Lite" units will ensure that every normal ATM transaction is recorded from the moment of card insertion to the removal of cash or statement.
  • the automatic matching of picture image and card information will link the customer to the card for future reference.
  • one or more infra-red emitting devices are arranged adjacent to or around a camera and/or night vision device in a door, or adjacent wall structure, to provide covert illumination which enables the viewer to check on the authenticity of the caller using the camera or night vision device.
  • infra-red illumination can be used at day or night or even when normal illumination is used, because the camera can be designed to be particularly sensitive to infra-red over visible ambient, either by the use of the appropriate sensitive elements such as CCD (silicon charge coupled devices) or by the use of optical filters to attenuate the visible but not the infra-red or by other means.
  • CCD silicon charge coupled devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Burglar Alarm Systems (AREA)
EP93300031A 1992-01-07 1993-01-05 Fernsehüberwachungssystem Withdrawn EP0551175A1 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB929200194A GB9200194D0 (en) 1992-01-07 1992-01-07 Security system
GB9200194 1992-01-07
GB929214627A GB9214627D0 (en) 1992-01-07 1992-07-09 Security system
GB9214627 1992-07-09
GB929219662A GB9219662D0 (en) 1992-09-17 1992-09-17 Ir light sources
GB9219662 1992-09-17
GB929225794A GB9225794D0 (en) 1992-12-10 1992-12-10 Money transaction machine
GB9225794 1992-12-10

Publications (1)

Publication Number Publication Date
EP0551175A1 true EP0551175A1 (de) 1993-07-14

Family

ID=27450800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93300031A Withdrawn EP0551175A1 (de) 1992-01-07 1993-01-05 Fernsehüberwachungssystem

Country Status (1)

Country Link
EP (1) EP0551175A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004378A1 (en) * 1997-07-19 1999-01-28 Footfall Limited Video imaging systems
EP1345444A1 (de) * 2002-03-11 2003-09-17 Inventio Ag Video Überwachungssystem mittels 3-D Halbleiterbildsensor und Infra-Rot Lichtquelle
WO2008014936A1 (fr) * 2006-08-03 2008-02-07 Sagem Securite Dispositif de capture de la silhouette d'un individu
GB2475416B (en) * 2009-11-16 2014-07-23 Vector Developments Ltd An imaging device, a related system and method of fabrication
CN105590392A (zh) * 2016-01-30 2016-05-18 泉州市隆升信息科技有限公司 一种智能小区在线安防方法
US10192418B1 (en) 2018-06-11 2019-01-29 Geoffrey M. Kern System and method for perimeter security

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754296A (de) * 1970-07-31 1970-12-31
US4479053A (en) * 1981-03-11 1984-10-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Focal plane array optical proximity sensor
EP0126955A1 (de) * 1983-05-03 1984-12-05 Kraftwerk Union Aktiengesellschaft Freigeländeüberwachungsanlage
EP0230671A1 (de) * 1985-12-30 1987-08-05 Compagnie Generale D'automatisme Cga-Hbs Bewegliche Video-Überwachungsvorrichtung
DE8910680U1 (de) * 1989-09-07 1990-10-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Fernsehaufnahmeeinrichtung
EP0474330A2 (de) * 1990-09-08 1992-03-11 Oxley Developments Company Limited An einem Paneel bzw. an einem Rahmen befestigte Anzeigeleuchten

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754296A (de) * 1970-07-31 1970-12-31
US4479053A (en) * 1981-03-11 1984-10-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Focal plane array optical proximity sensor
EP0126955A1 (de) * 1983-05-03 1984-12-05 Kraftwerk Union Aktiengesellschaft Freigeländeüberwachungsanlage
EP0230671A1 (de) * 1985-12-30 1987-08-05 Compagnie Generale D'automatisme Cga-Hbs Bewegliche Video-Überwachungsvorrichtung
DE8910680U1 (de) * 1989-09-07 1990-10-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Fernsehaufnahmeeinrichtung
EP0474330A2 (de) * 1990-09-08 1992-03-11 Oxley Developments Company Limited An einem Paneel bzw. an einem Rahmen befestigte Anzeigeleuchten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 221 (E-271)(1658) 9 October 1984 & JP-A-59 104 869 ( MITSUBISHI DENKI ) 16 June 1984 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999004378A1 (en) * 1997-07-19 1999-01-28 Footfall Limited Video imaging systems
EP1345444A1 (de) * 2002-03-11 2003-09-17 Inventio Ag Video Überwachungssystem mittels 3-D Halbleiterbildsensor und Infra-Rot Lichtquelle
SG107640A1 (en) * 2002-03-11 2004-12-29 Inventio Ag Door state monitoring by means of three-dimensional sensor
US6973998B2 (en) 2002-03-11 2005-12-13 Inventio Agt Door state monitoring by means of three-dimensional sensor
WO2008014936A1 (fr) * 2006-08-03 2008-02-07 Sagem Securite Dispositif de capture de la silhouette d'un individu
FR2904717A1 (fr) * 2006-08-03 2008-02-08 Sagem Defense Securite Dispositif de capture de la silhouette d'un individu
US8194131B2 (en) 2006-08-03 2012-06-05 Sagem Securite Device for capturing the silhouette of an individual
AU2007280736B2 (en) * 2006-08-03 2013-01-17 Morpho Device for capturing the silhouette of an individual
GB2475416B (en) * 2009-11-16 2014-07-23 Vector Developments Ltd An imaging device, a related system and method of fabrication
CN105590392A (zh) * 2016-01-30 2016-05-18 泉州市隆升信息科技有限公司 一种智能小区在线安防方法
US10192418B1 (en) 2018-06-11 2019-01-29 Geoffrey M. Kern System and method for perimeter security

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