DE69714817D1 - safety device - Google Patents

safety device

Info

Publication number
DE69714817D1
DE69714817D1 DE69714817T DE69714817T DE69714817D1 DE 69714817 D1 DE69714817 D1 DE 69714817D1 DE 69714817 T DE69714817 T DE 69714817T DE 69714817 T DE69714817 T DE 69714817T DE 69714817 D1 DE69714817 D1 DE 69714817D1
Authority
DE
Germany
Prior art keywords
risk
plane
false alarms
areas
several
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.)
Expired - Fee Related
Application number
DE69714817T
Other languages
German (de)
Other versions
DE69714817T2 (en
Inventor
Johannes Wilhelmus Gerar Hooft
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.)
IDS BV
Original Assignee
IDS BV
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 IDS BV filed Critical IDS BV
Application granted granted Critical
Publication of DE69714817D1 publication Critical patent/DE69714817D1/en
Publication of DE69714817T2 publication Critical patent/DE69714817T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G08B29/183—Single detectors using dual technologies
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Security devices are widely used for guarding spaces or areas (for example outdoor areas), with detectors monitoring different planes. It is a requirement for a good operation of a security device that the risk of false alarms should be reduced to a minimum. Each plane is subdivided into several subplanes in that the detector for each plane is provided with several sensors which are positioned so as to enclose an angle with one another. The risk of false alarms is substantially reduced thereby. <IMAGE>
DE69714817T 1996-10-02 1997-10-02 safety device Expired - Fee Related DE69714817T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1004170A NL1004170C2 (en) 1996-10-02 1996-10-02 Security device.

Publications (2)

Publication Number Publication Date
DE69714817D1 true DE69714817D1 (en) 2002-09-26
DE69714817T2 DE69714817T2 (en) 2003-04-10

Family

ID=19763601

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69714817T Expired - Fee Related DE69714817T2 (en) 1996-10-02 1997-10-02 safety device

Country Status (4)

Country Link
EP (1) EP0834844B1 (en)
AT (1) ATE222662T1 (en)
DE (1) DE69714817T2 (en)
NL (1) NL1004170C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4092438B2 (en) * 1999-08-19 2008-05-28 オプテックス株式会社 Intrusion detection method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600259A1 (en) * 1986-01-08 1987-07-09 Hirschmann Radiotechnik Motion detector for space surveillance
JPS62121523U (en) * 1986-01-24 1987-08-01
DE3736616C1 (en) * 1987-10-29 1989-02-09 Messerschmitt Boelkow Blohm Optical wide-angle sensor head
DE8808644U1 (en) * 1988-07-06 1988-11-03 Asea Brown Boveri AG, 6800 Mannheim Passive infrared motion detector

Also Published As

Publication number Publication date
EP0834844A1 (en) 1998-04-08
NL1004170C2 (en) 1998-04-06
DE69714817T2 (en) 2003-04-10
EP0834844B1 (en) 2002-08-21
ATE222662T1 (en) 2002-09-15

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee