EP1369834B1 - Brandmelder mit Anzeigen für die Aussenspannungsversorgung - Google Patents

Brandmelder mit Anzeigen für die Aussenspannungsversorgung Download PDF

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Publication number
EP1369834B1
EP1369834B1 EP02253890A EP02253890A EP1369834B1 EP 1369834 B1 EP1369834 B1 EP 1369834B1 EP 02253890 A EP02253890 A EP 02253890A EP 02253890 A EP02253890 A EP 02253890A EP 1369834 B1 EP1369834 B1 EP 1369834B1
Authority
EP
European Patent Office
Prior art keywords
fire detector
fire
central controller
indication means
operable
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 - Lifetime
Application number
EP02253890A
Other languages
English (en)
French (fr)
Other versions
EP1369834A1 (de
Inventor
Fariz Khellaf
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.)
Eaton Electrical Systems Ltd
Original Assignee
Cooper Lighting and Security Ltd
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 Cooper Lighting and Security Ltd filed Critical Cooper Lighting and Security Ltd
Priority to DE60212585T priority Critical patent/DE60212585T2/de
Priority to AT02253890T priority patent/ATE331266T1/de
Priority to EP02253890A priority patent/EP1369834B1/de
Publication of EP1369834A1 publication Critical patent/EP1369834A1/de
Application granted granted Critical
Publication of EP1369834B1 publication Critical patent/EP1369834B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • 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
    • G08B29/181—Prevention or correction of operating errors due to failing power supply

Definitions

  • This invention relates to a fire detector, a fire detector system and to a method of monitoring the functioning of a fire detector.
  • Existing fire detection systems typically comprise a central controller to which are attached in parallel a number of fire detection devices in a zone/loop configuration.
  • an end of line device At the end of the fire detection devices is an end of line device, which is used, in an "active" form, to send a pulse back to the central controller as confirmation that the electrical circuit through all of the fire detectors in the given loop/zone is complete.
  • a "passive" form of end of line device simply comprises a resistor. Both types are known in the art.
  • the end of line device will not receive the electrical signal from the central controller and so no signal will be sent back from the end of line device to the central controller, thus indicating to the central controller that there is a fault in that particular loop/zone.
  • US 5,621,394 discloses a smoke detection and alarm system, wherein the fire detectors comprise visual indication means operable to indicate that the fire detector is receiving power from a separate power supply.
  • a fire detector comprising indication means operable to indicate that the fire detector is receiving power from a separate power supply.
  • the indication means are visual indication means, preferably a light, most preferably an LED.
  • the visual indication means are operable to indicate whether the fire detector is receiving power on receipt of a signal from a central controller.
  • the visual indication means may be operable to illuminate on receipt of a signal from the central controller.
  • the visual indication means may be operable to give a visual indication when the fire detector is receiving power.
  • the visual indication means may be operable to flash when the fire detector is receiving power.
  • the visual indication means may be operable to give no indication when the fire detector is not receiving power and/or is malfunctioning.
  • the fire detector is advantageously operable to indicate when it is receiving power to facilitate visual inspection of a plurality of fire detectors in a zone arrangement. This feature assists the inspection because it indicates at what point in a zone there is a break in electrical supply or a fault in a detector.
  • the fire detector may be operable to detect heat, smoke and/or a specified gas.
  • the fire detector may be a smoke detector, a heat detector and/or a gas detector operable to trigger an alarm.
  • the fire detector may be a plug in type fire detector, preferably arranged to be fitted in a zone of a fire detector system controlled by a central controller of the fire detector system.
  • the fire detector preferably receives power from electrical wiring of said zone, preferably supplied by the central controller.
  • the fire detector is preferably a conventional-type fire detector, preferably with passive fire detection means that is operable to complete an electrical circuit on detectio of heat, smoke or gas.
  • a fire alarm system comprises at least one fire detector in a zone arrangement and a central controller, wherein the at least one fire detector is arranged to receive power from the central controller and wherein the at least one fire detector includes indication means operable to indicate that the at least one fire detector is receiving power from the central controller.
  • the indication means are visual indication means, preferably a LED.
  • the indication means are adapted to operate on receipt of a signal from the central controller, where said signal may be a test signal arranged to cause the visual indication means of all functioning fire detectors in a fire detector zone to illuminate, where a fire detector zone comprises at least one fire detector electrically connected to the central controller.
  • a fire detector zone comprises at least one fire detector electrically connected to the central controller.
  • a plurality of fire detectors is connected in parallel to form a zone.
  • the fire alarm system preferably includes a plurality of zones.
  • the signal may be generated by the central controller on receipt of an indication that at least one fire detectors is not receiving power and/or is malfunctioning.
  • the indication received by the central controller may result from an end of line device not receiving a signal and/or the central controller not receiving a signal from the end of line device.
  • the central controller may be operable to receive a command, from input means of the central controller, to test the at least one fire detector.
  • the command may be a coded command, requiring entry of a code via the input means.
  • a method of indicating the functioning of a fire detector comprises the step of the fire detector visually indicating that the fire detector is receiving power from a separate power supply.
  • the indication is caused on receipt of a signal from a central controller supplying power to the fire detector.
  • the indication may be a pulsed illumination of visual indication means or may be a continuous illumination thereof.
  • Figure 1 shows a fire detection alarm system having a central controller 10 and three fire detectors 12a,b,c located in parallel in a zone 14. An end of line device 16 is used to indicate the integrity of the zone electrical circuit through the fire detectors 12a to 12c.
  • zones 18 may also be controlled by the central controller 10, but are not shown in detail in this Figure, in order to aid simplicity.
  • a break 20 is shown in an electrical wire 22 between the fire detectors 12b and 12c.
  • a signal from the central controller to the end of line device 16 will not be received by the end of line device 16, because of the incomplete electrical circuit.
  • power will be supplied to the fire detectors 12a and 12b from the central controller because those devices are connected in parallel. It would not normally be apparent which of the fire detectors 12a to 12c had failed.
  • each fire detector 12a to 12c includes an LED 24a to 24c.
  • the LEDs 24a to 24c are set up to flash or be turned on continuously by the central controller 10 when the central controller 10 detects a fault, for example that caused by the break 20.
  • a fault for example that caused by the break 20.
  • the LEDs 24a and 24b will illuminate, but the LED 24c will not illuminate, because of the break 20 in the wiring.
  • a further alternative for the illumination of the LEDs 24a to 24c is to include a manual feature in the central controller 10, whereby a button may be pressed to illuminate the LEDs 24a to 24c to indicate that they are receiving power correctly.
  • a button may be pressed to illuminate the LEDs 24a to 24c to indicate that they are receiving power correctly.
  • This feature may be further developed by the use of a code which must be tapped into a keypad on the central controller 10 in order to cause illumination of the LEDs 24a to 24c in a particular zone, or at least those LEDs 24a to 24c having a fully functioning fire detector 12a to 12c.
  • fire detection system can operate using fire detectors 12a to 12c, which may optionally detect heat, smoke or other undesired gases.
  • any reference to fire detector is a reference to any of the heat, smoke or gas detectors mentioned.
  • the fire detection system disclosed herein has significant advantages over previous systems because the task of identifying where a failure is in a zone/loop of the fire alarm system is made considerably easier because visual inspection provides great assistance in determining which of a series of fire detectors has failed, or where there is a break in wiring.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)

Claims (8)

  1. Feuermelder (12a, 12b, 12c), der Anzeigeeinrichtungen (24a, 24b, 24c) aufweist, die betreibbar sind, um anzuzeigen, dass der Feuermelder (12a, 12b, 12c) Energie von einer separaten Energieversorgung (10) empfängt, wobei die Anzeigeeinrichtungen (24a, 24b, 24c) visuelle Anzeigeeinrichtungen sind, dadurch gekennzeichnet, dass die visuellen Anzeigeeinrichtungen (24a, 24b, 24c) auf einen Empfang eines Signals von einer zentralen Steuerung (10) hin betreibbar sind, um anzuzeigen, ob der Feuermelder Energie empfängt.
  2. Feuermelder nach Anspruch 1, wobei die visuellen Anzeigeeinrichtungen (24a, 24b, 24c) betreibbar sind, um zu blinken, wenn der Feuermelder Energie empfängt.
  3. Feuermelder nach Anspruch 1 oder Anspruch 2, wobei die visuellen Anzeigeeinrichtungen (24a, 24b, 24c) betreibbar sind, um keine Anzeige abzugeben, wenn der Feuermelder (12a, 12b, 12c) keine Energie empfängt und/oder nicht funktioniert.
  4. Feuermelder nach einem der vorangehenden Ansprüche, der dazu betreibbar ist, Hitze, Rauch und/oder ein spezifiziertes Gas zu erfassen.
  5. Feueralarmsystem mit wenigstens einem Feuermelder nach Anspruch 1 in einer Zonenanordnung (14) und mit einer zentralen Steuerung (10), wobei der wenigstens eine Feuermelder (12a, 12b, 12c) angeordnet und eingerichtet ist, um Energie von der zentralen Steuerung (10) zu empfangen.
  6. Feueralarmsystem nach Anspruch 5, wobei das Signal durch die zentrale Steuerung (10) auf einen Empfang einer Anzeige hin erzeugt wird, dass wenigstens ein Feuermelder (12a, 12b, 12c) keine Energie empfängt und/oder nicht funktioniert.
  7. Feueralarmsystem nach Anspruch 6, wobei die durch die zentrale Steuerung (10) empfangene Anzeige daraus resultiert, dass eine Leitungsende-Vorrichtung (16) kein Signal empfängt und/oder die zentrale Steuerung (10) kein Signal von der Leitungsende-Vorrichtung (16) empfängt.
  8. Verfahren zum Anzeigen des Funktionierens eines Feuermelders (12a, 12b, 12c) mit dem Schritt, dass der Feuermelder visuell anzeigt, dass der Feuermelder Energie von einer separaten Energieversorgung (10) empfängt, dadurch gekennzeichnet, dass die Anzeige auf einen Empfang eines Signals von einer zentralen Steuerung (10) hin veranlasst wird, die Energie zum Feuermelder zuführt.
EP02253890A 2002-06-05 2002-06-05 Brandmelder mit Anzeigen für die Aussenspannungsversorgung Expired - Lifetime EP1369834B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60212585T DE60212585T2 (de) 2002-06-05 2002-06-05 Brandmelder mit Anzeigen für die Aussenspannungsversorgung
AT02253890T ATE331266T1 (de) 2002-06-05 2002-06-05 Brandmelder mit anzeigen für die aussenspannungsversorgung
EP02253890A EP1369834B1 (de) 2002-06-05 2002-06-05 Brandmelder mit Anzeigen für die Aussenspannungsversorgung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02253890A EP1369834B1 (de) 2002-06-05 2002-06-05 Brandmelder mit Anzeigen für die Aussenspannungsversorgung

Publications (2)

Publication Number Publication Date
EP1369834A1 EP1369834A1 (de) 2003-12-10
EP1369834B1 true EP1369834B1 (de) 2006-06-21

Family

ID=29433202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02253890A Expired - Lifetime EP1369834B1 (de) 2002-06-05 2002-06-05 Brandmelder mit Anzeigen für die Aussenspannungsversorgung

Country Status (3)

Country Link
EP (1) EP1369834B1 (de)
AT (1) ATE331266T1 (de)
DE (1) DE60212585T2 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322841C2 (de) * 1993-07-08 1996-02-15 Zettler Gmbh Gefahrenmeldeanlage
AUPM744794A0 (en) * 1994-08-15 1994-09-08 Garrick, Gilbert Alain Lindsay Smoke alarm system with standby battery and elv reactive primary power supply

Also Published As

Publication number Publication date
DE60212585D1 (de) 2006-08-03
DE60212585T2 (de) 2007-05-24
ATE331266T1 (de) 2006-07-15
EP1369834A1 (de) 2003-12-10

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