FR2396559A1 - Systeme bifilaire de detection d'incendie et de reception ayant un certain nombre de detecteurs d'incendie connectes en parallele - Google Patents

Systeme bifilaire de detection d'incendie et de reception ayant un certain nombre de detecteurs d'incendie connectes en parallele

Info

Publication number
FR2396559A1
FR2396559A1 FR7819799A FR7819799A FR2396559A1 FR 2396559 A1 FR2396559 A1 FR 2396559A1 FR 7819799 A FR7819799 A FR 7819799A FR 7819799 A FR7819799 A FR 7819799A FR 2396559 A1 FR2396559 A1 FR 2396559A1
Authority
FR
France
Prior art keywords
reception system
detection
parallel
fire
wire
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
FR7819799A
Other languages
English (en)
Other versions
FR2396559B1 (fr
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.)
Hochiki Corp
Original Assignee
Hochiki Corp
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 Hochiki Corp filed Critical Hochiki Corp
Publication of FR2396559A1 publication Critical patent/FR2396559A1/fr
Application granted granted Critical
Publication of FR2396559B1 publication Critical patent/FR2396559B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)

Abstract

L'invention concerne un système bifilaire de détection d'incendie et de réception. Selon l'invention, chaque dispositif de détection 13 se compose de diodes d11 , d12 , d13 , d14 , d'une diode Zener bidirectionnelle e10 , de résistances R12 et R14 , de transistors Q12 et Q13 , d'un condensateur C10 , d'une diode Zener ZD11 , d'un thyristor 16, d'un oscillateur/photo-émetteur 17 et d'un amplificateur récepteur de lumière 18. Le récepteur 11 se compose d'une alimentation en courant continu 14, d'un transistor Q11 , et d'un dispositif de commande d'alarme 15; les dispositifs recepteur et détecteur sont connectés par deux fils 2a et 2b. L'invention s'applique notamment à la détection des incendies.
FR7819799A 1977-07-04 1978-07-03 Systeme bifilaire de detection d'incendie et de reception ayant un certain nombre de detecteurs d'incendie connectes en parallele Granted FR2396559A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977087501U JPS5760147Y2 (fr) 1977-07-04 1977-07-04

Publications (2)

Publication Number Publication Date
FR2396559A1 true FR2396559A1 (fr) 1979-02-02
FR2396559B1 FR2396559B1 (fr) 1983-08-19

Family

ID=13916717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819799A Granted FR2396559A1 (fr) 1977-07-04 1978-07-03 Systeme bifilaire de detection d'incendie et de reception ayant un certain nombre de detecteurs d'incendie connectes en parallele

Country Status (5)

Country Link
US (1) US4219803A (fr)
JP (1) JPS5760147Y2 (fr)
DE (1) DE2829133C3 (fr)
FR (1) FR2396559A1 (fr)
GB (1) GB2001792B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020127643A1 (fr) * 2018-12-19 2020-06-25 Continental Automotive France Synchronisation d'un moteur à combustion interne

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327330U (fr) * 1976-08-13 1978-03-08
GB2044504B (en) * 1979-03-17 1983-04-20 Hochiki Co Count discriminating fire detector
US4916432A (en) * 1987-10-21 1990-04-10 Pittway Corporation Smoke and fire detection system communication
US5302889A (en) * 1992-06-19 1994-04-12 Honeywell Inc. Voltage regulator
GB9312685D0 (en) * 1992-07-03 1993-08-04 Hochiki Co Thermal analog fire detector
EP2045921A1 (fr) * 2007-09-27 2009-04-08 Siemens Schweiz AG Interface de raccordement d'un dispositif de convertisseur à une ligne à deux fils
US9429606B2 (en) 2013-09-30 2016-08-30 Siemens Industry, Inc. Increasing resolution of resistance measurements

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214668A (en) * 1962-12-04 1965-10-26 Gen Devices Inc Transistorized voltage regulator
US3634839A (en) * 1968-03-11 1972-01-11 American District Telegraph Co Method and apparatus for suppressing spurious alarms in an electrical protection system
CA975856A (en) * 1968-12-26 1975-10-07 Hochiki Kabushiki Kaisha Alarm circuit
DE1905624C3 (de) * 1969-02-05 1978-07-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Zahnärztliches Bohrhandstück
US3678511A (en) * 1969-12-09 1972-07-18 Elmer M Benedict Alarm circuit
US3673586A (en) * 1970-02-19 1972-06-27 Statitrol Corp Resistance controlled timed pulse generator
US3964036A (en) * 1972-11-15 1976-06-15 Hochiki Corporation Ionization smoke detector co-used to issue fire alarm and detect ambient atmosphere
US3979600A (en) * 1974-11-14 1976-09-07 Rockwell International Corporation Sense circuit arrangement
JPS51100085U (fr) * 1975-02-10 1976-08-11
US4065759A (en) * 1976-01-07 1977-12-27 Handing Theodore E Smoke detector
DE2616265B2 (de) * 1976-04-13 1978-09-28 Robert 7995 Neukirch Buck Elektronisches Schaltgerät
JPS5856158B2 (ja) * 1976-08-09 1983-12-13 松下電工株式会社 火災報知器の受信回路
DE2641489C2 (de) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020127643A1 (fr) * 2018-12-19 2020-06-25 Continental Automotive France Synchronisation d'un moteur à combustion interne
FR3090858A1 (fr) * 2018-12-19 2020-06-26 Continental Automotive France Synchronisation d’un moteur à combustion interne
CN113227717A (zh) * 2018-12-19 2021-08-06 纬湃科技有限责任公司 内燃发动机的同步
CN113227717B (zh) * 2018-12-19 2023-10-27 纬湃科技有限责任公司 内燃发动机的同步
US11879404B2 (en) 2018-12-19 2024-01-23 Vitesco Technologies GmbH Device and method for determining the state of rotation of a camshaft of an engine

Also Published As

Publication number Publication date
US4219803A (en) 1980-08-26
JPS5760147Y2 (fr) 1982-12-22
FR2396559B1 (fr) 1983-08-19
DE2829133A1 (de) 1979-01-25
DE2829133B2 (de) 1981-02-05
GB2001792B (en) 1982-03-17
GB2001792A (en) 1979-02-07
JPS5414686U (fr) 1979-01-30
DE2829133C3 (de) 1981-11-19

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Legal Events

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