WO1994007223A1 - Systeme dissuasif contre une intrusion - Google Patents

Systeme dissuasif contre une intrusion Download PDF

Info

Publication number
WO1994007223A1
WO1994007223A1 PCT/GB1993/001935 GB9301935W WO9407223A1 WO 1994007223 A1 WO1994007223 A1 WO 1994007223A1 GB 9301935 W GB9301935 W GB 9301935W WO 9407223 A1 WO9407223 A1 WO 9407223A1
Authority
WO
WIPO (PCT)
Prior art keywords
smoke screen
smoke
liquid composition
generating means
density
Prior art date
Application number
PCT/GB1993/001935
Other languages
English (en)
Inventor
Paul Anton Dards
Original Assignee
Paul Anton Dards
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 GB929219365A external-priority patent/GB9219365D0/en
Application filed by Paul Anton Dards filed Critical Paul Anton Dards
Priority to EP93919531A priority Critical patent/EP0659293B1/fr
Priority to AU49792/93A priority patent/AU4979293A/en
Priority to DE69306406T priority patent/DE69306406T2/de
Publication of WO1994007223A1 publication Critical patent/WO1994007223A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
    • G08B15/02—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid

Definitions

  • the present invention relates to an intruder deterrent system of the type which generates a screen of smoke or vapour.
  • a severe limitation of the audible/visible alarm system is that the triggering of the alarm will not automatically deter a burglar and in most circumstances there will be a delay of as much as 10 to 15 minutes before the alarm is responded to by the owner, the pohce or other concerned citizens.
  • an intruder deterrent system of the type which generates a smoke screen and which comprises: smoke screen generating means; activating means to activate the smoke screen generating means when an intruder detection means, operatively linked to the activating means, is triggered; and smoke screen density regulating means having a sensor to sense the density of the smoke screen and control means responsive to the sensed density to adjust the output of the smoke screen generating means to maintain the screen density at a desired level.
  • the smoke screen generating means suitably comprises a pump the rate and/or duration of operation of which is controllable by said control means to regulate the density of the smoke screen.
  • the smoke screen generating means comprises a storage tank for an aqueous liquid composition and delivery pipes extending from the tank to deliver the liquid composition to an outlet, there being further provided heating means to heat the liquid composition which has left the tank to thereby convert the liquid composition into a dense vapour.
  • the duration of operation of the pump is controlled to regulate the density of the smoke screen and the rate of operation of the pump is controllable to regulate the efficiency of use of the liquid composition.
  • the liquid comprises a mixture of Glycol and water. Heating of this mixture as it passes through the delivery pipes to the outlet will vaporise the mixture to form a fog.
  • the smoke density sensor is housed independently of the smoke screen generating means.
  • the activating means is advantageously operatively linked to a fire detection system so as to be inactivated if fire detection system detects a fire. This will prevent hindrances to firemen breaking and entering a blazing building in which the intruder deterrent system is installed and armed.
  • a smoke screen generating means which comprises a storage tank for an aqueous liquid composition and one or more delivery pipes extending from the tank to deliver the liquid composition to an outlet, the system further comprising heating means adjacent the delivery pipe (s) to heat the liquid composition in the delivery pipe (s) to thereby convert the liquid composition into a dense vapour, control means being provided to control the rate of operation of the pump in dependence upon the temperature of the heating means.
  • a smoke-generating intruder deterrent unit 1 comprising a robust metal or plastics casing housing a liquid storage tank 2 which is adapted to act as a reservoir for a Glycol/water mixture or other suitable heat labile fog-generating mixture.
  • a liquid storage tank 2 which is adapted to act as a reservoir for a Glycol/water mixture or other suitable heat labile fog-generating mixture.
  • One or more delivery pipes
  • a powerful oscillating piston pump 4 which, when activated, operates to draw the liquid mixture from the tank 2 and pump it at a selectable variable rate.
  • a powerful oscillating piston pump 4 which, when activated, operates to draw the liquid mixture from the tank 2 and pump it at a selectable variable rate.
  • two such pumps 4 are provided in parallel to each other to improve fluid flow.
  • the fluid pumped by the or each piston pump 4 is forced through a narrow coiled tube 5 located within an insulated heating block 6, to be heated to a thermostatically controlled temperature and vaporised prior to being expelled from the unit 1 via an outlet 7.
  • a switch 8 which receives an input from an intruder detection system A, of any suitable known type which is suitably part of a burglar alarm system.
  • Switch 8 which may, for example, comprise a latching relay serves to activate the pump 4 when the intruder detection system is triggered.
  • Switch 8 may be over ridden or switched off by a signal resulting from activation of a fire smoke detection system B. Furthermore, inhibit circuits may be provided to switch off or over ride the switch 8 in response to switching off of the burglar alarm system which the intruder detection system complements or forms part of. This will prevent accidental activation of the smoke screen generator during dayhght hours when the building is normally occupied
  • the intruder detection system is, in the illustrated embodiment shown as being external to the unit 1, it may, if desired, be formed integrally with the unit 1, making the unit 1 a wholly self-contained system enabling the unit to be positioned in a wide range of locations.
  • the sensor is suitably of an infrared or microwave transmitting and receiving nature.
  • the unit 1 suitably also incorporates its own internal power supply which is suitably a 12 volt battery. This may serve as a back-up power supply in case of failure of the external mains electricity power supply.
  • An indicator panel is suitably provided on the unit 1, or, more preferably on the main burglar alarm system control panel to indicate the operational status of the unit 1 and display outputs from fault detection sensors provided in the unit 1 for detecting power failure or malfunction of the heater block 6.
  • the indicator panel suitably also displays an output from a reservoir level senses in the unit 1 which sensors the level of fluid within the tank 2 to warn of depletion.
  • the intruder detection system may be configured to activate the smoke- generating unit 1 when the intruder breaks the perimeter of the building prior to entering the room in which the unit 1 is installed. By doing so the room will be effectively smoke-filled, preventing vision, even before the burglar enters that room.
  • Attainment and maintenance of a satisfactory level of smoke screen density is achieved through feed-back control of the rate of vapour production by the unit 1.
  • One or preferably a pluraity of smoke screen density sensors 10 sense the density of the generated smoke screen. These are similar to the sensors used in conventional fire safety smoke detectors employing infrared transmissions and utilizing the Tyndle effect of light dispersion to sense smoke. Unlike conventional smoke detector sensors, however, because the threshold level of smoke screen density for triggering the system to activate it to produce more smoke is suitably around 450 mg of Glycol vapour per cubic metre of air, the sensitivity setting of the relay switch 1 in each sensor 10 which activates the system is suitably lower than conventional. Additionally, the rate at which the sensors 10 sample is faster than conventional, being of the order of once per second to three times per second.
  • a control unit 9 having comparator circuits controls the duration of operation and rate at which the piston pump 4 pumps the liquid mixture from the tank 2 and hence controls the rate of vapour generation.
  • Use of a triac in the control unit 9 provides not only an on off control but also continuously variable adjustabhty of the rate of pumping. This variable adjustabihty enables economical use of the stored glycol mixture.
  • control unit 9 When the smoke screen generating system is first activated in response to triggering of the intruder detection system A the control unit 9 will provide power to the piston pump 4 such that the piston pump will operate.
  • the smoke sensors 10 are suitably independent of the unit 1 and operatively linked thereto by one or more electrical cables. By provision of the sensors 10 independently of the unit 1, substantial flexibility in the arrangement of the system is obtained. Amongst other factors, the independent positionability of the sensors enables adjustment by that means of the sensitivity of the system to the smoke screen density.
  • temperature sensors 13 are provided to sense the temperature of the heating block 6 and send control inputs to the triac of the control unit 9 to adjust the rate of operation of the pump 4 to correspond with the temperature of the heating block 6.
  • the rate of pumping of the fluid to and through the heating block 6 will initially be maintained at a low level and made to rise as the temperature of the heating block 6 rises.
  • a number of smoke-generating units may be inter-linked and connected to one or more sensors at a range of locations to provide optimal coverage of an area to be enshrouded in the smoke screens.
  • a suitable configuration of the smoke-generating units 1 and the sensors 10 may be arrived at to ensure that no area of a room is vulnerable to dispersion of the smoke screen by opening of doors or windows or the like.
  • a long-lasting dense fog may be produce with little or no residue being deposited on the exposed surfaces of the room, leaving the room practically untouched by smoke once it has been dispersed and the smoke being totally innocuous to occupants of the room.
  • a smoke screen of this nature is ideal for the purpose in question.
  • Variation of the composition of the mixture by, for example, changing the glycol used or altering the water content, provides further selectability of the duration of persistence of the generated smoke screen.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

Un système dissuasif contre une intrusion d'un type produisant un écran de fumée, comprend: un moyen de détection de l'intrus (A); un moyen de production d'un écran de fumée (2, 3, 5); un moyen d'activation (8) relié au moyen de détection de l'intrus et au moyen de production d'un écran de fumée, de façon à activer ce dernier au moment de l'enclenchement du moyen de détection de l'intrus; un moyen de régulation de la densité de l'écran de fumée possédant un détecteur de densité de l'écran de fumée (10), afin de détecter la densité de l'écran de fumée et un moyen de régulation (9) réagissant à la densité détectée, de façon à réguler la sortie du moyen de production de l'écran de fumée, afin de maintenir la densité de l'écran de fumée au niveau souhaité.
PCT/GB1993/001935 1992-09-12 1993-09-13 Systeme dissuasif contre une intrusion WO1994007223A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP93919531A EP0659293B1 (fr) 1992-09-12 1993-09-13 Systeme dissuasif contre une intrusion
AU49792/93A AU4979293A (en) 1992-09-12 1993-09-13 Intruder deterrent system
DE69306406T DE69306406T2 (de) 1992-09-12 1993-09-13 Einbrecher-abschrecksystem

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9219365.5 1992-09-12
GB929219365A GB9219365D0 (en) 1992-09-12 1992-09-12 Intruder deterrent system
GB9304390.9 1993-03-04
GB939304390A GB9304390D0 (en) 1992-09-12 1993-03-04 Intruder deterrent system

Publications (1)

Publication Number Publication Date
WO1994007223A1 true WO1994007223A1 (fr) 1994-03-31

Family

ID=26301614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/001935 WO1994007223A1 (fr) 1992-09-12 1993-09-13 Systeme dissuasif contre une intrusion

Country Status (7)

Country Link
EP (1) EP0659293B1 (fr)
AT (1) ATE146002T1 (fr)
AU (1) AU4979293A (fr)
DE (1) DE69306406T2 (fr)
DK (1) DK0659293T3 (fr)
GB (1) GB2270396B (fr)
WO (1) WO1994007223A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664532A1 (fr) * 1994-01-21 1995-07-26 Taher Burayez Dispositif de sécurité pour véhicule automobile
DE19600359C1 (de) * 1996-01-08 1997-06-12 Delta Electronic Gmbh Nebelgerät für eine Alarmanlage
GB2315683A (en) * 1996-07-31 1998-02-11 Barrie Peary Device for vaporising fluids
GB2324636A (en) * 1997-04-26 1998-10-28 Gillrange Limited Intruder deterrent device
DE19748422C1 (de) * 1997-11-03 1999-08-12 Daimler Chrysler Ag Sichtschutz zur Verhinderung einer Einsichtnahme für Prototypen
ITTO20130906A1 (it) * 2013-11-08 2014-02-07 Ur Fog S R L Sistema e procedimento di controllo antiocclusione per dispositivo nebbiogeno.
EP3443263B1 (fr) * 2016-04-11 2022-05-11 UR Fog S.r.l. Appareil pour la génération de fumée et méthode de fontionnement d'un tel appareil

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1280125B1 (it) * 1995-02-10 1998-01-05 Claudio Ricci Procedimento di erogazione di gas con funzione antifurto e dispositivo relativo
DE29520736U1 (de) * 1995-11-17 1996-03-07 Innovative Pyrotechnik GmbH, 71032 Böblingen Vorrichtung zum Vernebeln von Räumen
SE509966C2 (sv) * 1996-01-30 1999-03-29 Olle Ljungberg Förfarande och anordning för inbrottsskydd med rökgenerering
WO2003063104A1 (fr) * 2002-01-25 2003-07-31 Kuno Borst Dispositif d'alarme
GB0502202D0 (en) * 2005-02-03 2005-03-09 Ibp Internat Ltd Tracking device
CN101520934B (zh) 2008-02-26 2013-04-24 马田专业公司 入侵者制止系统
EP2444136A1 (fr) * 2010-10-22 2012-04-25 Bandit NV Générateur de brouillard comportant un fluide marqueur de génération de brouillard
HUP1000685A2 (en) * 2010-12-22 2012-06-28 Balazs Bencsik Auxiliary property protection device for electronic property protection systems
ES2609752B1 (es) * 2015-10-21 2018-02-01 Carlos RIAZA CÁRCAMO Bote de humo de accionamiento automático en caso de robo
EP3319055A1 (fr) * 2016-11-04 2018-05-09 Verisure Sàrl Procédé et dispositif de commande et d'alimentation d'un générateur de fumée
CN106559655B (zh) * 2016-11-11 2019-08-27 公安部第三研究所 一种用于防盗抢安全烟雾系统性能指标测试的检测装置及检测方法
NL2021650B1 (en) * 2018-09-17 2020-05-07 Iron Tech B V An anti-intrusion system with a fog generator for generating fog at an intrusion event
IT202100009350A1 (it) * 2021-04-14 2022-10-14 Leonardo Holding S R L Dispositivo nebbiogeno di sicurezza

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533726A1 (fr) * 1982-09-23 1984-03-30 Rouault Jean Dispositif autonome et telecommande permettant la diffusion cyclique et programmable d'un gaz ou d'un liquide sous pression
EP0118339A1 (fr) * 1983-02-07 1984-09-12 Societe Nationale Des Poudres Et Explosifs Installation de protection par dispersion de produits actifs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247094A (en) * 1990-06-05 1992-02-19 Ronald Allan Proctor Vehicle anti-theft device
US5168544A (en) * 1991-05-31 1992-12-01 Aai Corporation Method and apparatus for controllably generating simulated smoke

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533726A1 (fr) * 1982-09-23 1984-03-30 Rouault Jean Dispositif autonome et telecommande permettant la diffusion cyclique et programmable d'un gaz ou d'un liquide sous pression
EP0118339A1 (fr) * 1983-02-07 1984-09-12 Societe Nationale Des Poudres Et Explosifs Installation de protection par dispersion de produits actifs

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0664532A1 (fr) * 1994-01-21 1995-07-26 Taher Burayez Dispositif de sécurité pour véhicule automobile
DE19600359C1 (de) * 1996-01-08 1997-06-12 Delta Electronic Gmbh Nebelgerät für eine Alarmanlage
GB2315683A (en) * 1996-07-31 1998-02-11 Barrie Peary Device for vaporising fluids
GB2315683B (en) * 1996-07-31 1998-09-16 Barrie Peary Device for vaporising fluids
GB2324636A (en) * 1997-04-26 1998-10-28 Gillrange Limited Intruder deterrent device
GB2324636B (en) * 1997-04-26 2001-03-14 Gillrange Ltd Intruder deterrent device
DE19748422C1 (de) * 1997-11-03 1999-08-12 Daimler Chrysler Ag Sichtschutz zur Verhinderung einer Einsichtnahme für Prototypen
ITTO20130906A1 (it) * 2013-11-08 2014-02-07 Ur Fog S R L Sistema e procedimento di controllo antiocclusione per dispositivo nebbiogeno.
WO2015068182A1 (fr) * 2013-11-08 2015-05-14 Ur Fog S.R.L. Procédé et système de commande contre une occlusion d'un dispositif de génération de brouillard
EP3443263B1 (fr) * 2016-04-11 2022-05-11 UR Fog S.r.l. Appareil pour la génération de fumée et méthode de fontionnement d'un tel appareil

Also Published As

Publication number Publication date
DE69306406D1 (de) 1997-01-16
GB9318924D0 (en) 1993-10-27
AU4979293A (en) 1994-04-12
GB2270396B (en) 1995-01-25
DK0659293T3 (da) 1997-05-12
EP0659293A1 (fr) 1995-06-28
ATE146002T1 (de) 1996-12-15
GB2270396A (en) 1994-03-09
DE69306406T2 (de) 1997-07-10
EP0659293B1 (fr) 1996-12-04

Similar Documents

Publication Publication Date Title
EP0659293B1 (fr) Systeme dissuasif contre une intrusion
US5394139A (en) Smoke screen intruder deterrent system
US5311166A (en) Security vestibule
US5931233A (en) Two-phase fire suppression/protection method and system for structures and surrounding grounds
US5854588A (en) Home security system for detecting an intrusion into a monitored area by an infrared detector
US5424712A (en) Carjacking defense system
US6762686B1 (en) Interactive wireless home security detectors
US5870020A (en) Vehicle alarm for providing remote indication of infiltration
US5819124A (en) Security system
US5263543A (en) External fire prevention system
US4833449A (en) Home security system
US6801132B2 (en) Method and device for the early detection of fire and for fighting fire indoors and outdoors, especially in living areas, of homes and buildings
US6515283B1 (en) Fire detector with modulation index measurement
US6239435B1 (en) Fire detector with replacement module
EP0623906B1 (fr) Systeme de prevention des intrusions et appareil de prevention des vols
US6029751A (en) Automatic fire suppression apparatus and method
CA1165838A (fr) Systeme antivol et ouvre-porte de garage pour maison d'habitation
US5216407A (en) Prealarm system for an anti-theft alarm
US4433274A (en) Home security and garage door operator system
WO2006091281A2 (fr) Alarme equipee d'un dispositif d'eclairage
ES499600A0 (es) Instalacion de seguridad para vigilancia a distancia y alar-ma contra robos
WO1998012068A2 (fr) Systeme d'alarme portable
US5442336A (en) Switch-timer system and method for use in smoke detector alarm unit
WO2017192222A1 (fr) Système de module de distraction
US4195288A (en) Alarm system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1993919531

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1993919531

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1993919531

Country of ref document: EP