EP0888598A1 - Verfahren und vorrichtung zur signalunterscheidung bei der erfassung des eindriens in einen raum - Google Patents

Verfahren und vorrichtung zur signalunterscheidung bei der erfassung des eindriens in einen raum

Info

Publication number
EP0888598A1
EP0888598A1 EP97952967A EP97952967A EP0888598A1 EP 0888598 A1 EP0888598 A1 EP 0888598A1 EP 97952967 A EP97952967 A EP 97952967A EP 97952967 A EP97952967 A EP 97952967A EP 0888598 A1 EP0888598 A1 EP 0888598A1
Authority
EP
European Patent Office
Prior art keywords
variations
pressure
room
signal
sensitive
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
EP97952967A
Other languages
English (en)
French (fr)
Other versions
EP0888598B1 (de
Inventor
Damien Bouillet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0888598A1 publication Critical patent/EP0888598A1/de
Application granted granted Critical
Publication of EP0888598B1 publication Critical patent/EP0888598B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/1681—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using infrasonic detecting means, e.g. a microphone operating below the audible frequency range

Definitions

  • the invention relates to a signal discrimination method used in the field of intrusion detection in a room.
  • the invention relates to the field of intrusion detection in a room and relates specifically to a method of discriminating the signals produced by at least one means sensitive to variations in the pressure of a gaseous fluid constituting the atmosphere of said room.
  • the invention also relates to the means for implementing the method of the invention, as well as to the intrusion detection devices which comprise these means.
  • room we mean any closed volume capable of receiving at least one person, such as a room in a building, a shed, a vehicle interior.
  • the technical field of the invention is that of intrusion detection devices in a room, of the type of those operating by detection of at least one pressure variation in said room, such as that resulting from the opening of at least an exit from this room.
  • the invention relates more particularly but not exclusively to an improvement to the device which is the subject of patent FR-A-2,696,033 of the applicant.
  • Detection devices of this type use at least one means which, sensitive to the pressure of the air in the room being monitored, generates an electrical signal in relation to any variation in the pressure observed in said room.
  • Intrusion detection devices which operate in this way are sensitive to pressure variations generated in the room by phenomena external to said room, such as those resulting from a gale or a displacement of air generated by the passage of a vehicle.
  • a result that the invention is a method of discriminating the signals produced by at least one means pressure sensitive in the area of intrusion detection in a room.
  • the subject of the invention is a method of discriminating the signals produced by at least one pressure-sensitive means in the field of intrusion detection in a room characterized in that, for discriminating the electrical signals :
  • the means sensitive to variations in pressure produces an electrical signal
  • the evolution of the amplitude of at least one characteristic of this signal is monitored and, when two successive variations of amplitudes are substantially opposite with respect to a median value, the personal information medium is inhibited while, - when variations in amplitude of another nature are detected, the personal information medium is activated.
  • the invention also relates to the means for implementing the method of the invention as well as to the intrusion detection devices which comprise these means.
  • the invention will be better understood with the aid of the description below given by way of nonlimiting example with regard to the drawing, attached hereto, which represents a device which implements a means of the invention.
  • a device 1 for detecting an intrusion into a room 2 this device being of the type of those operating by detecting at least one variation of the pressure of the gaseous atmosphere 3 prevailing in said room 2, such as a pressure variation resulting from the opening of at least one outlet 4 from this room 2.
  • This device 1 comprises at least:
  • the inventor found that the pressure variations generated in the atmosphere of a room following a natural event outside the room, such as a gust of wind, produce a pressure change comprising two waves of opposite amplitudes.
  • the present process is therefore based on the exploitation of this phenomenon.
  • the means for implementing the method of the invention are remarkable in that they include:
  • the means 5 which, sensitive to variations in the pressure of the gaseous atmosphere of the premises, is capable of producing at least one electrical signal reflecting the variations in this pressure, is of the type comprising at least two elements 5A which are substantially distinct and separated each other of a determined value.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Manipulation Of Pulses (AREA)
EP97952967A 1997-01-03 1997-12-22 Verfahren und vorrichtung zur signalunterscheidung bei der erfassung des eindrigens in einen raum Expired - Lifetime EP0888598B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9700123 1997-01-03
FR9700123A FR2758201B1 (fr) 1997-01-03 1997-01-03 Procede de discrimination de signaux pour la detection d'instrusions dans un local, moyens pour la mise en oeuvre du procede et dispositfs comprenant ces moyens
PCT/FR1997/002374 WO1998029845A1 (fr) 1997-01-03 1997-12-22 Procede et dispositif de discrimination de signaux pour la detection d'intrusions dans un local

Publications (2)

Publication Number Publication Date
EP0888598A1 true EP0888598A1 (de) 1999-01-07
EP0888598B1 EP0888598B1 (de) 2002-06-19

Family

ID=9502447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97952967A Expired - Lifetime EP0888598B1 (de) 1997-01-03 1997-12-22 Verfahren und vorrichtung zur signalunterscheidung bei der erfassung des eindrigens in einen raum

Country Status (7)

Country Link
US (1) US6335683B1 (de)
EP (1) EP0888598B1 (de)
CN (1) CN1214781A (de)
AT (1) ATE219591T1 (de)
DE (1) DE69713495D1 (de)
FR (1) FR2758201B1 (de)
WO (1) WO1998029845A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7479878B2 (en) * 2004-07-28 2009-01-20 Senstar-Stellar Corporation Triboelectric, ranging, or dual use security sensor cable and method of manufacturing same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL52286A (en) * 1976-06-23 1979-12-30 Multisafe Ag Burglar alarm
GB2067324B (en) * 1980-01-10 1983-09-07 Shorrock Dev Intruder detection apparatus
US4499564A (en) * 1980-08-20 1985-02-12 Secom Co., Ltd. Pattern comparison ultrasonic surveillance system with noise suppression
US4628318A (en) * 1983-12-02 1986-12-09 Rockwell International Corporation Ground clutter suppression technique
US5079422A (en) * 1989-09-06 1992-01-07 Gaztech Corporation Fire detection system using spatially cooperative multi-sensor input technique
US5790413A (en) * 1993-03-22 1998-08-04 Exxon Chemical Patents Inc. Plant parameter detection by monitoring of power spectral densities
AU7617294A (en) * 1993-09-01 1995-03-22 A3P S.A.R.L Device for detecting an intruder in a building or vehicle by infrasonic and/or pressure wave detection and method for so detecting an intruder
US5464369A (en) * 1994-02-25 1995-11-07 Johnson Service Company Method and apparatus for estimating the rate at which a gas is generated within an enclosed space
DE69510287T2 (de) * 1994-09-09 2000-03-23 Denso Corp., Kariya Pneumatischer Reifendruckmesser
CA2201080C (en) * 1996-03-27 2000-01-25 Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of Industry Ultrasonic detection system for safety of vehicle passengers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9829845A1 *

Also Published As

Publication number Publication date
EP0888598B1 (de) 2002-06-19
WO1998029845A1 (fr) 1998-07-09
ATE219591T1 (de) 2002-07-15
US6335683B1 (en) 2002-01-01
FR2758201B1 (fr) 1999-02-26
FR2758201A1 (fr) 1998-07-10
CN1214781A (zh) 1999-04-21
DE69713495D1 (de) 2002-07-25

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