DE10035723A1 - Contactless fire sensor for high voltage installations has light sensor and receiver - Google Patents

Contactless fire sensor for high voltage installations has light sensor and receiver

Info

Publication number
DE10035723A1
DE10035723A1 DE2000135723 DE10035723A DE10035723A1 DE 10035723 A1 DE10035723 A1 DE 10035723A1 DE 2000135723 DE2000135723 DE 2000135723 DE 10035723 A DE10035723 A DE 10035723A DE 10035723 A1 DE10035723 A1 DE 10035723A1
Authority
DE
Germany
Prior art keywords
sensor according
sensor
receiver
light
protection
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Withdrawn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
DE2000135723
Other languages
German (de)
Inventor
Hossein Borsi
Ernst Gockenbach
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
Priority to DE2000135723 priority Critical patent/DE10035723A1/en
Publication of DE10035723A1 publication Critical patent/DE10035723A1/en
Withdrawn legal-status Critical Current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
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

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  • 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)

Abstract

A fire sensor has a light transmitter and receiver monitoring a space so that an interruption in the signal due to smoke or fire sets off an alarm and fire extinguishing devices.

Description

Lichtsensor zur potentialfreien Früherkennung von möglichen Brandquellen und zur Verhinderung von Bränden bestehend aus einem Lichtwellenleiter unterschiedlicher Länge, der an den Enden mit Lichtsender und -empfänger versehen ist. Der Lichtwellenleiter wird an den zu schützenden Stellen angeordnet. Zum Schutz von z. B. der Wicklung eines Transformators wird der Lichtwellenleiter quer zur Wicklungsrichtung einmal oder mehrmals gewickelt, so dass alle Windungen zumindest an einem Punkt erfasst werden. Zum Schutz von empfindlichen Teilen von Anlagen wie z. B. der Signalleitung in einem Flugzeug wird der Lichtwellenleiter mit dem Signalkabelbündel mitgeführt. Im Falle einer Überhitzung oder eines Brandes der zu überwachenden Bereiche wird das Lichtsignal auf dem Weg vom Sender zum Empfänger verzerrt, gedämpft oder gar unterbrochen. Die Veränderung des ankommenden Lichtsignals in dem Empfänger generiert ein Alarmsignal, welches zur Abschaltung, zum Schutz und zur Aktivierung weiterer Maßnahmen verwendet wird.Light sensor for potential-free early detection of possible fire sources and to prevent fires consisting of an optical fiber of different lengths, at the ends with light transmitter and receiver is provided. The optical fiber is at the points to be protected arranged. To protect z. B. the winding of a transformer the fiber optic cable transversely to the winding direction once or several times wound so that all turns are recorded at least at one point. To protect sensitive parts of systems such. B. the signal line in an airplane the optical fiber with the signal cable bundle carried. In the event of overheating or fire the monitoring areas, the light signal is on the way from the transmitter to the Receiver distorted, muffled or even interrupted. The change in incoming light signal in the receiver generates an alarm signal, which to switch off, protect and activate other Measures is used.

Stand der TechnikState of the art

Es gibt bereits verschiedene Brandsensoren, die z. B. durch die Detektion von Rauchentwicklung einen Brand detektieren und Melden. Weiterhin kann durch Kameras oder Hitzesensoren oder Lichtentwicklung ein Brand detektiert und gemeldet werden.There are already various fire sensors, e.g. B. by the detection of Detect smoke and report a fire. Furthermore, by Cameras or heat sensors or light development detects a fire and be reported.

Problemproblem

Der im Anspruch 1 angegebenen Erfindung liegt das Problem zugrunde, mit Hilfe eines Sensors das Auftreten von Überhitzungsstellen und lokalen Brandherden in Geräten, Anlagen, Räumen usw. zu erkennen, zu lokalisieren und zu melden. Damit können Folgeschäden und Brände verhindert werden. Die mit der Erfindung erzielten Verbesserungen gegenüber dem Stand der Technik bestehen insbesondere darin, dass die Detektion und Meldung in einem sehr frühen Stadium erfolgt, dass die Sensoranlage potentialfrei aufgebaut werden kann, und somit Anlagenbereiche geschützt werden können, die auf Hochspannungspotential liegen. Weiterhin ist diese Anlage sehr preisgünstig, leicht zu montieren, nachträglich einbaubar und sehr robust.The invention specified in claim 1 addresses the problem with With the help of a sensor the occurrence of overheating and local Detect and localize sources of fire in devices, systems, rooms, etc. and report. This can prevent consequential damage and fires. The improvements achieved with the invention over the prior art Technology consists in particular in that the detection and reporting in one At a very early stage, the sensor system is set up floating can be protected, and thus plant areas that can be protected High voltage potential. Furthermore, this system is very inexpensive, easy to assemble, retrofittable and very robust.

Claims (11)

1. Sensor, dadurch gekennzeichnet, daß er aus einem Kunststoff- Lichtwellenleiter besteht, welcher an den Enden mit Lichtsender und Lichtempfänger versehen ist und daß bei lokaler Überschreitung einer bestimmten Temperatur und/oder bei einem lokalen Brand innerhalb des zu schützenden Gegenstandes das Lichtsignal verzerrt, gedämpft und unter Umständen unterbrochen wird und dadurch eine Meldung oder ein entsprechender Befehl ausgelöst wird.1. Sensor, characterized in that it consists of a plastic optical waveguide, which is provided at the ends with light transmitter and light receiver and that when a certain temperature and / or local fire is exceeded within the object to be protected, the light signal is distorted, is damped and possibly interrupted, thereby triggering a message or a corresponding command. 2. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß er in dem zu schützenden Objekt so angeordnet wird, daß die gefährdeten Teile des zu schützenden Objektes erfaßt werden.2. Sensor according to claim 1, characterized in that it is in the protective object is arranged so that the vulnerable parts of the protective object can be detected. 3. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß der Schutz potentialfrei erfolgt und somit Gegenstände und Anlagen, die auf Potential liegen, auch geschützt werden können.3. Sensor according to claim 1, characterized in that the protection is potential-free and thus objects and systems based on Potential, can also be protected. 4. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß bei Hochspannungswicklungen wie bei Transformatoren und Wandlern der Sensor einfach oder mehrfach quer zu der Windungsrichtung so gewickelt wird, dass alle Windungen zumindest an einem Punkt erfasst werden.4. Sensor according to claim 1, characterized in that at High voltage windings like transformers and converters of the Sensor wound one or more times across the winding direction is that all turns are recorded at least at one point. 5. Sensor nach Anspruch 1 und 4, dadurch gekennzeichnet, daß bei den Wicklungen ein Windungsschluss während des Betriebs detektiert werden kann. 5. Sensor according to claim 1 and 4, characterized in that the Windings a turn short can be detected during operation can.   6. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß zum Schutz von Kabelbäumen im Flugzeugen, Satelliten, Autos und in anderen Bereichen der Lichtwellensensor mit dem Kabelbaum mitgeführt wird.6. Sensor according to claim 1, characterized in that for the protection of Wiring harnesses in aircraft, satellites, cars and other areas the light wave sensor is carried with the wiring harness. 7. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß im Falle einer lokalen Überschreitung der Temperatur oder eines Brandes aus den Reflexionen und den Laufzeiten des Signals die Fehlerstelle geortet werden kann.7. Sensor according to claim 1, characterized in that in the case of a local temperature or fire from the Reflections and the transit times of the signal pinpointed the point of failure can be. 8. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß durch die Wahl des Sensormaterials, Abstand und Art der Befestigung des Lichtwellenleiters an die zu schützenden Bereiche sowie durch die Kalibrierung des Senders und des Empfängers die Temperatur, bei der die Signalverzerrung erfolgt, beeinflusst wird.8. Sensor according to claim 1, characterized in that by the choice of Sensor material, distance and type of attachment of the optical fiber to the areas to be protected and by calibrating the transmitter and the receiver's temperature at which the signal distortion takes place, is influenced. 9. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß zum Schutz von komplexen Anlagen je nach Bedarf mehrere Sensoren eingesetzt werden können.9. Sensor according to claim 1, characterized in that for the protection of complex systems, multiple sensors can be used as required can. 10. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß der Lichtwellenleiter zwischen dem Lichtsender und -Empfänger je nach Bedarf unterschiedlich lang sein kann.10. Sensor according to claim 1, characterized in that the Optical fiber between the light transmitter and receiver depending on Demand can be of different lengths. 11. Sensor nach Anspruch 1, dadurch gekennzeichnet, daß eine Steuereinheit Fehler im Schutzsystem kontinuierlich ermittelt und meldet.11. Sensor according to claim 1, characterized in that a control unit Faults in the protection system continuously identified and reported.
DE2000135723 2000-07-22 2000-07-22 Contactless fire sensor for high voltage installations has light sensor and receiver Withdrawn DE10035723A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000135723 DE10035723A1 (en) 2000-07-22 2000-07-22 Contactless fire sensor for high voltage installations has light sensor and receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000135723 DE10035723A1 (en) 2000-07-22 2000-07-22 Contactless fire sensor for high voltage installations has light sensor and receiver

Publications (1)

Publication Number Publication Date
DE10035723A1 true DE10035723A1 (en) 2002-02-07

Family

ID=7649841

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000135723 Withdrawn DE10035723A1 (en) 2000-07-22 2000-07-22 Contactless fire sensor for high voltage installations has light sensor and receiver

Country Status (1)

Country Link
DE (1) DE10035723A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220413A1 (en) * 2002-05-08 2003-11-27 Behr Gmbh & Co Method and device for monitoring the temperature of an electric heating element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817280A1 (en) * 1988-05-20 1989-11-30 Asea Brown Boveri cOIL WINDING
DE4403577A1 (en) * 1994-02-05 1995-08-10 Hossein Prof Dr Ing Borsi Sensor for early detection of excessive temp. and local fire sources in transformers, windings, coils and transducers
DE19541142A1 (en) * 1995-10-27 1997-04-30 Siemens Ag Industrial temp. monitoring system using light pipe as temp. sensor, esp. for long pipe-like structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817280A1 (en) * 1988-05-20 1989-11-30 Asea Brown Boveri cOIL WINDING
DE4403577A1 (en) * 1994-02-05 1995-08-10 Hossein Prof Dr Ing Borsi Sensor for early detection of excessive temp. and local fire sources in transformers, windings, coils and transducers
DE19541142A1 (en) * 1995-10-27 1997-04-30 Siemens Ag Industrial temp. monitoring system using light pipe as temp. sensor, esp. for long pipe-like structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220413A1 (en) * 2002-05-08 2003-11-27 Behr Gmbh & Co Method and device for monitoring the temperature of an electric heating element

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