EP0206664A3 - Schutzsystem - Google Patents

Schutzsystem Download PDF

Info

Publication number
EP0206664A3
EP0206664A3 EP86304518A EP86304518A EP0206664A3 EP 0206664 A3 EP0206664 A3 EP 0206664A3 EP 86304518 A EP86304518 A EP 86304518A EP 86304518 A EP86304518 A EP 86304518A EP 0206664 A3 EP0206664 A3 EP 0206664A3
Authority
EP
European Patent Office
Prior art keywords
multiplexer
receivers
cycle
energised
intrusion
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Withdrawn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
EP86304518A
Other languages
English (en)
French (fr)
Other versions
EP0206664A2 (de
Inventor
John Peter Hughes
Brian Dows Fletcher
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 EP0206664A2 publication Critical patent/EP0206664A2/de
Publication of EP0206664A3 publication Critical patent/EP0206664A3/de
Withdrawn legal-status Critical Current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
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
EP86304518A 1985-06-12 1986-06-12 Schutzsystem Withdrawn EP0206664A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8514862 1985-06-12
GB8514862 1985-06-12

Publications (2)

Publication Number Publication Date
EP0206664A2 EP0206664A2 (de) 1986-12-30
EP0206664A3 true EP0206664A3 (de) 1989-03-01

Family

ID=10580624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86304518A Withdrawn EP0206664A3 (de) 1985-06-12 1986-06-12 Schutzsystem

Country Status (2)

Country Link
EP (1) EP0206664A3 (de)
GB (1) GB2177503A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015840B1 (en) * 1990-01-09 1995-04-11 Scient Technologies Inc Self-checking light curtain system and method of operation.
GB2266143A (en) * 1992-04-16 1993-10-20 Ind Tech Res Inst Palm-triggered photo switch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970846A (en) * 1973-10-29 1976-07-20 Xenex Corporation Presence detecting system with self-checking
WO1981000750A1 (en) * 1979-09-10 1981-03-19 Ambler K Improvements relating to safety mechanisms for industrial machinery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2247053C3 (de) * 1972-09-26 1979-08-09 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Lichtschrankengitter
GB1482567A (en) * 1973-10-29 1977-08-10 Xenex Corp Presence detecting system with self-checking
SE385746B (sv) * 1974-09-20 1976-07-19 Telub Ab Anordning for detektering av ett i en ljusrida inforbart objekt
GB1579020A (en) * 1977-02-21 1980-11-12 Pull D V Machine guards
GB1603197A (en) * 1978-03-09 1981-11-18 Rigby Electronics Ltd Electronic machine guard
SE418426B (sv) * 1978-04-10 1981-05-25 Telub Ab Ljusrida
DE3013967C2 (de) * 1980-04-11 1984-08-09 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Justieranordnung für Lichtgitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970846A (en) * 1973-10-29 1976-07-20 Xenex Corporation Presence detecting system with self-checking
WO1981000750A1 (en) * 1979-09-10 1981-03-19 Ambler K Improvements relating to safety mechanisms for industrial machinery

Also Published As

Publication number Publication date
EP0206664A2 (de) 1986-12-30
GB8614303D0 (en) 1986-07-16
GB2177503A (en) 1987-01-21

Similar Documents

Publication Publication Date Title
US3970846A (en) Presence detecting system with self-checking
US4660024A (en) Dual technology intruder detection system
US4401976A (en) Multiple sensor interconnected alarm system responsive to different variables
EP0341906A3 (de) Sicherheitssystem
WO1998030987A3 (en) Remote detecting system and method
AU4138889A (en) Intrusion detection system and a method therefor
WO1988000747A3 (en) Intrusion detection system
GB1436025A (en) Breakage detector
CA2222619A1 (en) Multi-signature fire detector
MY101793A (en) Proximity detector
CA2029089A1 (en) Intrusion detection system
GB1329194A (en) Apparatus for article theft detection
WO1991020065A3 (de) Zustandsmeldevorrichtung
ES8800772A1 (es) Un sistema ultrasonico de deteccion de movimiento con autodiagnostico.
CA1269733C (en) FRAME SYNCHRONIZED DIGITAL SIGNAL TRANSMISSION SYSTEM
EP0206664A3 (de) Schutzsystem
US4719973A (en) Fire and explosion detection and suppression
JPS643589A (en) Error detection system for two-state optical fiber sensor
EP0367486A3 (de) Feueralarmsystem
US5627379A (en) Duplication detection of circuit board removal using two light emitting diodes
GB1430091A (en) Apparatus for detecting smoke and like suspensions
EP0274889B1 (de) Sicherheitssensoren
GB1389273A (en) Pulse reflection test means for pressure surveillance detector
EP0146372A3 (de) Notlagen-Warneinrichtung
GB2288681B (en) Fault monitoring event detection device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR IT LI LU NL SE

17P Request for examination filed

Effective date: 19870630

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR IT LI LU NL SE

18W Application withdrawn

Withdrawal date: 19890413

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

R18W Application withdrawn (corrected)

Effective date: 19890413