EP2814011A1 - Procédé et système d'alarme d'armoire - Google Patents

Procédé et système d'alarme d'armoire Download PDF

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Publication number
EP2814011A1
EP2814011A1 EP14250083.4A EP14250083A EP2814011A1 EP 2814011 A1 EP2814011 A1 EP 2814011A1 EP 14250083 A EP14250083 A EP 14250083A EP 2814011 A1 EP2814011 A1 EP 2814011A1
Authority
EP
European Patent Office
Prior art keywords
cabinet
sensor
noise
alarm
alert
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.)
Granted
Application number
EP14250083.4A
Other languages
German (de)
English (en)
Other versions
EP2814011B1 (fr
Inventor
Peter Jones
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.)
XTRA SENSE Ltd
Xtra-sense Ltd
Original Assignee
XTRA SENSE Ltd
Xtra-sense 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 XTRA SENSE Ltd, Xtra-sense Ltd filed Critical XTRA SENSE Ltd
Publication of EP2814011A1 publication Critical patent/EP2814011A1/fr
Application granted granted Critical
Publication of EP2814011B1 publication Critical patent/EP2814011B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G08B13/02—Mechanical actuation
    • G08B13/06—Mechanical actuation by tampering with fastening
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
    • E05G1/00—Safes or strong-rooms for valuables
    • E05G1/10—Safes or strong-rooms for valuables with alarm, signal or indicator
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B5/00—Details of, or auxiliary devices for, ticket-issuing machines
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F9/00—Details other than those peculiar to special kinds or types of apparatus
    • G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • G08B29/188—Data fusion; cooperative systems, e.g. voting among different detectors

Definitions

  • This invention relates generally to cabinet alarm systems and methods. More particularly this invention relates to security alarm systems and methods whereby an alert is provided only if the cabinet is subject to attack.
  • Ticket and other vending machines are placed at locations to enable automated customer transactions and they are increasingly appearing for example at bus, tram and train stations, car parks, shopping centres and high streets.
  • machines are designed to enable automated transactions, they are typically provided at locations which may not be supervised or at least not supervised all of the time.
  • machines are vulnerable to attack and vandalism, and there is a requirement to provide electronic alarms to detect inappropriate and damaging behavior which risks the loss of the machine contents (such as money or stock) and non-availability for use as well as expensive repairs to the cabinets or even complete loss due to the entire removal of the cabinets.
  • Type 3 Concerted attempts to gain access and rob the contents.
  • Type 3 attacks will include:
  • a Type 1 low impact frustration attack may require one type of action; whereas a Type 2 vandalism or Type 3 attempted access attack would need different responses to be initiated.
  • the cabinets associated with vending and ticket machines are noticeably thinner and more flexible than a standard safe. Furthermore these cabinets are located in public areas and exposed to potentially extreme weather conditions.
  • the approach of the current invention to distinguish a genuine attack from something created by a normal environmental condition is to use at least two separate technologies, generating separate responses to an attack, to raise the confidence level of a genuine event to a point where it needs to be acted upon.
  • the present invention takes advantage of existing technology and combines it together in a novel and inventive way with other signal processing methods to detect attacks on cabinets such as ticket machines and vending machines.
  • acoustic noise means noise travelling through air.
  • An acoustic noise sensor is in contact with air and senses that noise in that air through that contact with that air.
  • noise travelling through the structure of a cabinet means noise travelling through the structure of a cabinet.
  • a conducted noise sensor is in contact with the cabinet and senses that noise in the structure of the cabinet through that contact with the cabinet.
  • 'distortion' means strain in the cabinet.
  • a 'distortion sensor' detects strain in the cabinet.
  • a force applied to the cabinet causes strain in the cabinet.
  • the distortion sensor senses this force by detecting the strain this force causes.
  • a thermal rate sensor is a timer combined with a thermometer sensitive to the temperature of air nearby the thermometer.
  • the thermal rate sensor detects the time rate of change of the air temperature.
  • a thermal rate sensor comprises a thermometer located inside the cabinet to detect the temperature of air inside the cabinet.
  • an alert device arranged to fit to a cabinet, the alarm comprising: a timer; a first, a second and a third sensor, wherein each sensor is adapted to sense a different physical event so as to provide respective first, second and third inputs; and a means to trigger an alert in the successive events of: the first and the second sensed inputs exceeding respective first and second input thresholds during a first time period; and the third sensed input exceeding a third input threshold within or after a predetermined time interval subsequent to said first time period.
  • Each perpetrator who attacks a cabinet may use their method and tools to gain access to the cabinet interior.
  • Each method has steps of attack. These steps may occur simultaneously, but often the steps of attack must be carried out in a specific order. Each step may use a unique tool.
  • the alert alarm employs three types of sensor. Each sensor is sensitive to a sound, or vibration, or distortion, or a temperature change, an optical cue, an odour, and so on that corresponds to a specific physical event.
  • the alert alarm has a means to trigger the alarm when the specific physical events occur in a specific sequence. The alarm is triggered only if the events occur within or after predetermined time intervals of each other. The sequence and timing of the physical events is indicative of the type of attack the perpetrator is using. Hence the alert alarm can detect an provide an alarm for many specific types of attack.
  • the first sensor is an acoustic sensor that detects an acoustic noise and the third sensor is a conducted noise sensor that detects noise transferred from a noise generating device to a cabinet by direct contact between the noise generating device and the cabinet.
  • a perpetrator may attack the cabinet with grinder or mechanical cutter. First the grinder or cutter is turned on and it makes a loud whining acoustic noise. Typically the grinder is then applied to a cabinet wall within a time period of a half second to two seconds. This produces a conducted noise because the grinder vibrates the wall as its cutting blade starts to cut through.
  • the first sensor is an acoustic sensor that detects an acoustic noise and the third sensor is a thermal sensor that detects temperature.
  • a typical cutting torch attack begins with the cutting torch being ignited. A pop followed by a hiss sound occurs when the torch is ignited. After igniting the torch the perpetrator cuts through the cabinet wall with the torch flame. As soon as the flame penetrates into the interior of the cabinet the noise level of the cutting flame is amplified significantly and the temperature inside the cabinet rises rapidly. The alert alarm can distinguish a cutting torch attack from background noises, normal daily temperature changes and so on because of its sensitivity to the physical event sequence and timing associated with this type of attack.
  • An acoustic sensor is arranged to hear sound in the air inside the cabinet. These internal sensors are hard to tamper with. The hiss of a sound of torch when it is started is more difficult to detect reliably than the sound when the flame penetrates into the cabinet.
  • the cabinet is an enclosed space so the flame sound inside is very loud.
  • the acoustic sensor is located inside the cabinet so as to hear sound in the air inside the cabinet.
  • the thermal sensor includes a means to measure the time rate of change of temperature. Torch attacks are associated with temperature rise of the air inside the cabinet that occurs much faster than the daily fluctuations of temperature due to sunrise, sunset, and weather events.
  • the first sensor is an acoustic sensor that detects acoustic noise
  • the second sensor is a conducted noise sensor that detects a noise transferred from a noise generating device to a cabinet by direct contact between the noise generating device and the cabinet
  • the third sensor is a distortion sensor that detects strain changes in the structures of the cabinet due an application of force.
  • a perpetrator may attempt to lever open the cabinet door by first hammering a lever into some part of the door to gain purchase. The hammer blow or blows to the lever will generate both characteristic acoustic and conducted noise in the cabinet. Typically a half a second up to ten seconds later the perpetrator will apply force to thelever to try and open the door, which will create a distortion of the cabinet and door.
  • a perpetrator may attack the cabinet with grinder.
  • First the grinder is turned on and it makes a loud whining acoustic noise.
  • the grinder is then applied to a cabinet wall producing a conducted noise when the grinder vibrates the wall.
  • the perpetrator then applies an impact to the weakened cabinet to break to break it open. The impact produces a deflection or strain in a mounting means that attaches the cabinet to a base.
  • the alert device comprises a processor to interpret the inputs from the first, second, and third sensors.
  • a processor may be a programmable device.
  • the processor can be programmed to trigger the alarm the next time a perpetrator tries an attack indicated by the same physical events sensed in the same sequence and within or after the same time intervals of each other.
  • the alarm comprises additionally an acoustic sensor, further comprising a sound recording device arranged to record acoustic noise during the events which trigger the alarm.
  • the alert device comprises a timing means with recording means to record signals from the sensors.
  • the timing means is preset or is settable to record the signals for up to a minute from the start of a physical event.
  • the time range is half to 20 seconds.
  • a grinder or a cutting torch can cut into a cabinet in 2 to 20 seconds and by limiting the time interval less memory storage is needed to record the sensor signals.
  • the alert device comprises a processor to interpret the inputs from the first, second and third sensors when (i) the acoustic noise sensor and the conducted noise sensor provide first and second inputs exceeding the first and second input thresholds respectively in the first time period; and after the predetermined time interval; (ii) the distortion sensor provides a third input exceeding the third input threshold; and also to trigger the alert in the event that: (iii) the conducted noise sensor provides a second input exceeding the second threshold in the first time period; and after the predetermined time interval, (iv) the distortion sensor provides a third input that exceeding the third input threshold; and also to trigger the alert in the event that: (v) the acoustic noise sensor provides a first input exceeding the first threshold in the first time period; and after the predetermined time interval, (vi) the distortion sensor provides a third input exceeding the third input threshold.
  • the first input threshold of event (i) is different than the first input threshold of event (v).
  • the second input threshold of event (i) is different than the second input threshold of event (iii).
  • the third input thresholds of events (ii), (iv), and (vi) are all different.
  • the cabinet alarm can be customized to trigger the alert upon an attack by a particular type of tool or combination of tools.
  • the first sensor is an acoustic noise sensor that detects acoustic noise in the frequency range produced by a rotary grinder or cutter, and acoustic noise in the frequency range produced by a cutting torch, and acoustic noise produced by metal on metal impact and noise in the air inside the cabinet.
  • the second sensor is a conducted noise sensor that detects conducted noise transferred from a noise generating device to the cabinet by direct contact between the noise generating device and the cabinet.
  • it is detected by frequency range of conducted noise due to metal on metal impact and produced by a rotary grinder and cutter.
  • the cabinet alarm provides an alert in response to the occurrence of an attack event which causes major distortion of the structure of the cabinet without the generation of significant noise.
  • the first sensor is a distortion sensor that detects a force input in conjunction with time counted by the timer, and the events are:
  • a typical attack that would be detected by these events is for example when perpetrator wraps a chain around the cabinet or attaches the chain to the cabinet.
  • the perpetrator attaches the chain to a vehicle or a winch an pulls the cabinet away from its connection to the base.
  • the chain reaches its limit and suddenly jerks the cabinet.
  • a very high rate of change of the force applied to the cabinet to the cabinet with respect to time occurs.
  • the cabinet is jerked repeatedly to dislodge it from the base.
  • this type of attack can be detected from one or more rapid changes in force to weaken the attachment of the cabinet to the base followed by a large force to dislodge the cabinet.
  • the repeated jerks give an early warning of the beginning of an attack.
  • the alert continues while all sensed inputs exceed their respective input thresholds. Hence if the attack is stopped or is completed the alert is no longer provided and does not disturb people or continue to send a signal to a monitoring center that an attack is in progress.
  • the trigger means can be arranged to continue to provide the alert once all the physical inputs have occurred within a preselected sequence and within or after a preselected interval of each other. Hence even if the perpetrator stops or completes the attack, the alert continues to be sounded, flashed, or signaled to a monitoring center or to people in the vicinity of the cabinet. The alert may frighten the perpetrator away.
  • the means to provide an alert is suitable for connection to a wireless or a hardwired transmitter.
  • any or all the acoustic noise thresholds, the conductive noise thresholds, and the force thresholds can all be set by a user either before the alarm is installed in the cabinet or after the alarm is installed in the cabinet or both before and after by a local user or a remote user.
  • the cabinet alarm is adapted to provide no alert when a cabinet is subject to routine noise and handling.
  • the alarm only provides an alert when a particular sequence of events occurs indicative of an attack on the cabinet.
  • the alert is provided it continues until the events that initiated the alarm stop or an acknowledgement of the alert is provided back to the cabinet alarm or for a predetermined time after the alert is first provided.
  • Figure 1 illustrates a cabinet 10 comprising a door 15 that swings on hinges 16.
  • the cabinet 70 is supported above, and spaced apart from, a base 20 by four supports 31, 32, 33, and 34 (not shown). Due to the supports holding the cabinet above the base there is a gap, or spacing, 40 between the bottom of the cabinet and the base. The gap allows the cabinet to move on the supports if an external force is applied to the cabinet without the cabinet contacting the base.
  • the microphone 50 is an acoustic noise sensor.
  • the temperature sensor 60 is combined with a clock (not shown) to create a temperature rate of change sensor to detect the time rate of change of air temperature inside the cabinet.
  • distortion sensor 80 fixed to the cabinet which distortion sensor detects distortion of the base of the cabinet due to a force applied to the exterior of the cabinet.
  • the supports 31, 32, 33, and 34, and gap 40 give freedom for the base to distort under an applied force.
  • the present invention combines noise detection, force detection, and heat detection technologies. By identifying the signal characteristics for the acoustic noise and /or the conducted noise and structural deformation generated by different types of attack on the cabinet, some, or all of these signals may be interpreted by a control microprocessor to determine the type of attack.
  • Figure 2 illustrates a typical time trace of noise detected by the acoustic noise sensor 50 and the conducted noise sensor 70 before and during an attack by a grinder.
  • the time trace is a plot of the acoustic noise signal produced by the acoustic noise sensor 50 and on the same graph a plot of the conducted noise signal produced by the conducted noise sensor 70.
  • Grinders usually comprise a rotary cutting blade driven by a loud series electric motor or a loud compressed air motor.
  • the loud noise is transmitted through the air inside and outside the cabinet and it is received and detected by the acoustic noise sensor.
  • the acoustic noise sensor is fixed inside the cabinet. This location prevents the perpetrator from covering the acoustic noise sensor with a device to muffle the noise.
  • Figure 2 shows the rise in the time trace of noise detected by the acoustic noise sensor when the grinder is switched on.
  • the level of noise produced by grinder rises above the acoustic noise threshold as illustrated.
  • the conducted noise imparted to the cabinet by the grinder is above the conducted noise threshold after the grinder contacts the cabinet.
  • the conducted noise rises above the conducted noise threshold within a very short time after the acoustic noise rises above the acoustic noise threshold. This very short time is usually between a fraction of second and several seconds. Most often it is between half a second and two seconds.
  • the acoustic noise detected prior to detecting a rapid rise in the air temperature inside the cabinet when the cutting flame penetrates the cabinet skin can be used as indication of a serious attack.
  • the level of acoustic noise inside the cabinet will also amplify significantly when the cutting flame penetrates the cabinet skin, offering an alternative event forming part of a serious attack.
  • a third sensor that can detect a third physical event can provide a higher level of confidence that an attack has occurred.
  • Figure 3 is a time trace of noise detected by an acoustic noise sensor and temperature of the air inside a cabinet before and during an attack on the cabinet by a hot gas cutting torch.
  • a cutting torch makes a whistling or hissing sound. Until the flame cuts through the cabinet, the sound of the cutting torch may be below the acoustic noise threshold for the cutting torch. However, as the flame cuts into the interior of the cabinet, the whistling or hissing sound of the torch is amplified inside the cabinet and is detected by the acoustic noise sensor 50 and exceeds the acoustic noise threshold.
  • An alternative form of attack which may not involve significant levels of noise is to attempt to remove the cabinet from its mountings by ramming it or pulling it off with powerful machinery.
  • Ticket and other vending machine cabinets will be bolted down using a number of floor bolts, usually one in each corner 31, 32, 33, and 34. Any attempt to forcibly remove the unit by ramming it or tying a strap or chain round it and pulling it with a vehicle or other device, will cause significant deformation of the cabinet. This will be detected as strain by the distortion sensor 80. Identifying suitable monitoring points and setting appropriate signal level thresholds allows genuine attacks to be distinguished from environmental events, such as strong winds. The sensitivity of detection of this deformation is enhanced when the cabinet is supported only by the bolts 31, 32, 33 and 34. A gap 40 of approximately 2mm between the floor of the cabinet and its pedestal or floor mounting is ideal so that all of the weight of the cabinet is distributed between the bolts 31, 32, 33 and 34.
  • the cabinet alarm can identify the likely nature of an attack to initiate suitable responses.
  • a further improvement of the cabinet alarm is the recording of acoustic information.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Multimedia (AREA)
EP14250083.4A 2013-06-13 2014-06-13 Procédé et système d'alarme d'armoire Active EP2814011B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1310600.0A GB2515090A (en) 2013-06-13 2013-06-13 A cabinet alarm system and method

Publications (2)

Publication Number Publication Date
EP2814011A1 true EP2814011A1 (fr) 2014-12-17
EP2814011B1 EP2814011B1 (fr) 2018-07-25

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EP14250083.4A Active EP2814011B1 (fr) 2013-06-13 2014-06-13 Procédé et système d'alarme d'armoire

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EP (1) EP2814011B1 (fr)
GB (1) GB2515090A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114783086A (zh) * 2022-03-31 2022-07-22 南通铂链网络科技有限公司 一种计算机网络信息安全装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104895448A (zh) * 2015-06-29 2015-09-09 灵山县实验小学 多功能报警器

Citations (21)

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Publication number Priority date Publication date Assignee Title
US4383250A (en) 1981-03-09 1983-05-10 American District Telegraph Company System for intrusion detection
FR2598237A1 (fr) 1986-05-05 1987-11-06 Milly Lucien Perfectionnements aux dispositifs dits " d'alarme ", a l'encontre des intrusions frauduleuses, dans les batiments
US4772874A (en) 1984-02-29 1988-09-20 Topre Corporation Keyboard apparatus
EP0347091A2 (fr) * 1988-06-11 1989-12-20 ICI Belgium NV/SA Un système de sécurité
FR2687240A1 (fr) 1992-02-06 1993-08-13 Grouberman Claude Dispositif de protection detectant la sollicitation du mecanisme d'une fermeture (serrure, verrou) et generant un signal d'information, d'alerte ou d'alarme.
GB2264378A (en) 1992-02-11 1993-08-25 Transalarm Ltd A frangible sensor for a secure enclosure
GB2279791A (en) 1993-06-12 1995-01-11 Digital Audio Ltd Motion detecting system
GB2306035A (en) 1995-10-07 1997-04-23 Philip Elphee Williams Differential weight security alarm
WO1997021015A1 (fr) * 1995-12-02 1997-06-12 Kim Ji Tae Systeme de coffre-fort intelligent
US6028509A (en) * 1998-03-18 2000-02-22 Rice; David Voice activated vehicle alarm system
WO2001069559A1 (fr) * 2000-03-16 2001-09-20 Staplethorne Xtra-Sense Limited Systemes de detection
JP2003041858A (ja) 2001-07-31 2003-02-13 Masato Harada Ｉｔ機能付き金庫
GB2360119B (en) 1999-11-06 2004-03-24 Staplethorne Ltd Sensor systems
US20050264413A1 (en) 2004-05-25 2005-12-01 Honeywell International, Inc. Dual technology glass breakage detector
WO2006101477A1 (fr) * 2005-03-15 2006-09-28 Chubb International Holdings Limited Filtre d'alarme intempestive
EP1981010A2 (fr) 2007-04-09 2008-10-15 Honeywell International Inc. Procédé de détection d'amortisseur de verrouillage
CN201297091Y (zh) 2008-10-23 2009-08-26 创斯达（南通）机电有限公司 用于保险柜的电子报警装置
CN201474484U (zh) * 2009-07-06 2010-05-19 芜湖欣兰德工业制品有限责任公司 一种智能保险箱
KR20100120512A (ko) * 2009-05-06 2010-11-16 주식회사 에치케이텍 금융 자동화 기기용 보안장치
CN201695861U (zh) 2010-06-21 2011-01-05 成都尼博科技有限公司 一种保险箱柜的防盗报警器
GB2466721B (en) 2009-01-06 2011-06-15 Xtra Sense Ltd Security system

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383250A (en) 1981-03-09 1983-05-10 American District Telegraph Company System for intrusion detection
US4772874A (en) 1984-02-29 1988-09-20 Topre Corporation Keyboard apparatus
FR2598237A1 (fr) 1986-05-05 1987-11-06 Milly Lucien Perfectionnements aux dispositifs dits " d'alarme ", a l'encontre des intrusions frauduleuses, dans les batiments
EP0347091A2 (fr) * 1988-06-11 1989-12-20 ICI Belgium NV/SA Un système de sécurité
FR2687240A1 (fr) 1992-02-06 1993-08-13 Grouberman Claude Dispositif de protection detectant la sollicitation du mecanisme d'une fermeture (serrure, verrou) et generant un signal d'information, d'alerte ou d'alarme.
GB2264378A (en) 1992-02-11 1993-08-25 Transalarm Ltd A frangible sensor for a secure enclosure
GB2279791A (en) 1993-06-12 1995-01-11 Digital Audio Ltd Motion detecting system
GB2306035A (en) 1995-10-07 1997-04-23 Philip Elphee Williams Differential weight security alarm
WO1997021015A1 (fr) * 1995-12-02 1997-06-12 Kim Ji Tae Systeme de coffre-fort intelligent
US6028509A (en) * 1998-03-18 2000-02-22 Rice; David Voice activated vehicle alarm system
GB2360119B (en) 1999-11-06 2004-03-24 Staplethorne Ltd Sensor systems
WO2001069559A1 (fr) * 2000-03-16 2001-09-20 Staplethorne Xtra-Sense Limited Systemes de detection
GB2365187A (en) 2000-03-16 2002-02-13 Staplethorne Xtra Sense Ltd Piezo-electric sensor and alarm system
JP2003041858A (ja) 2001-07-31 2003-02-13 Masato Harada Ｉｔ機能付き金庫
US20050264413A1 (en) 2004-05-25 2005-12-01 Honeywell International, Inc. Dual technology glass breakage detector
WO2006101477A1 (fr) * 2005-03-15 2006-09-28 Chubb International Holdings Limited Filtre d'alarme intempestive
EP1981010A2 (fr) 2007-04-09 2008-10-15 Honeywell International Inc. Procédé de détection d'amortisseur de verrouillage
CN201297091Y (zh) 2008-10-23 2009-08-26 创斯达（南通）机电有限公司 用于保险柜的电子报警装置
GB2466721B (en) 2009-01-06 2011-06-15 Xtra Sense Ltd Security system
KR20100120512A (ko) * 2009-05-06 2010-11-16 주식회사 에치케이텍 금융 자동화 기기용 보안장치
CN201474484U (zh) * 2009-07-06 2010-05-19 芜湖欣兰德工业制品有限责任公司 一种智能保险箱
CN201695861U (zh) 2010-06-21 2011-01-05 成都尼博科技有限公司 一种保险箱柜的防盗报警器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114783086A (zh) * 2022-03-31 2022-07-22 南通铂链网络科技有限公司 一种计算机网络信息安全装置

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Publication number Publication date
GB201310600D0 (en) 2013-07-31
GB2515090A (en) 2014-12-17
EP2814011B1 (fr) 2018-07-25

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