EP1538580B2 - Hazard signalling system - Google Patents

Hazard signalling system Download PDF

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Publication number
EP1538580B2
EP1538580B2 EP03028034.1A EP03028034A EP1538580B2 EP 1538580 B2 EP1538580 B2 EP 1538580B2 EP 03028034 A EP03028034 A EP 03028034A EP 1538580 B2 EP1538580 B2 EP 1538580B2
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EP
European Patent Office
Prior art keywords
hazard
detectors
signalling system
control centre
detector loop
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
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EP03028034.1A
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German (de)
French (fr)
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EP1538580A1 (en
EP1538580B1 (en
EP1538580B9 (en
Inventor
Jörg-Erich Schulz
Walter Vollenweider
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Siemens Schweiz AG
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Siemens Schweiz AG
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Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to DE50311248T priority Critical patent/DE50311248D1/en
Priority to EP03028034.1A priority patent/EP1538580B9/en
Priority to AT03028034T priority patent/ATE424600T1/en
Publication of EP1538580A1 publication Critical patent/EP1538580A1/en
Publication of EP1538580B1 publication Critical patent/EP1538580B1/en
Publication of EP1538580B2 publication Critical patent/EP1538580B2/en
Application granted granted Critical
Publication of EP1538580B9 publication Critical patent/EP1538580B9/en
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

Definitions

  • the present invention relates to a hazard alarm system with an alarm center, a detector loop and with danger alarms that are connected to this detector loop.
  • Such alarm systems can be in particular fire alarm systems with a fire alarm panel and connected to a bus forming the detector loop fire detectors or burglar alarm systems with a burglar alarm and burglar alarms connected to the bus.
  • fire alarm systems it was not yet permissible to operate other devices on the detector loop because it was feared that the function of the fire alarm system could be impaired by these other devices.
  • the climate controllers would detect a temperature increase when a fire started and subsequently send messages to reduce the heating or switch on the cooling system to the central air conditioning unit. In the worst case, so many such messages could be discontinued that the bus is blocked and the fire detectors can no longer send their alarm messages.
  • the EP 0689145 A1 describes one way the access of different systems.
  • a general bus with time sharing for access to the bus is assigned to the systems according to their own specific modes such as protocol, speed, etc.
  • the system that controls the bus at the time At the end of its transmission cycle, the system that controls the bus at the time generates an event that establishes a synchronization basis for all devices present on the line. These then contribute to the arrangement of a successive conflict byte, which leads to the identification of the system and thus the control of the system is obtained.
  • the invention is now a danger detection system will be specified, which is so robust that a trouble-free simultaneous operation of hazard detectors and other devices is possible on the detector loop.
  • the switching of the detector loop to one of the control panels is done by a controlled by the alarm center switching means.
  • a first preferred embodiment of the inventive hazard alarm system is characterized in that the switching through of the detector loop to one of the control panels takes place in a predetermined time grid.
  • the detector loop is turned on at least 50% of the time to the fire panel.
  • a second preferred embodiment of the hazard warning system according to the invention is characterized in that the hazard alarms are provided with devices which make it possible to keep parameters of signals on the detector loop at a value which is outside the range of values maintained in normal operation that additional devices are provided that check the said value, and that if this value deviates from the value expected during normal operation, a message is sent to the alarm center, enabling it to establish a connection to the hazard detectors and, where appropriate, other safety related detectors.
  • a further preferred embodiment is characterized in that said parameters of signals are formed on the detector loop by the voltage or the current, and in that said additional means are part of the switching means for switching the detector loop to one of the control panels.
  • a further preferred embodiment is characterized in that the alarm system is formed by a fire alarm system with a fire alarm panel and fire detectors connected to the detector loop or by a burglar alarm system with a burglar alarm panel and burglar alarms connected to the detector loop. Messages from fire detectors are preferably treated with priority and suppress the switching through the detector loop on the at least one other center.
  • the fire alarm system shown in the drawing generally represents a hazard alarm system with an alarm center and hazard detectors; it may therefore be a fire alarm system, a burglar alarm system or a gas detection system.
  • the illustrated fire alarm system comprises a fire alarm panel 1, a formed by a bus 2 Detector loop and a plurality of connected to the bus 2 fire detectors 3.
  • These fire alarms 3 are shown in the figure uniform. In reality, however, they can be detectors of different designs, but they all serve to detect fires and therefore have to comply with special safety requirements. In particular, the term fire detectors are also to be understood as manual call points. With lower demands on the transmission reliability, the detectors can also be connected only via a simple detector line.
  • the bus 2 is connected via switch 8 to the fire panel 1.
  • burglar alarms 4 a climate controller 5 and a device 6 for transmitting voice or music are also connected to the bus 2.
  • the device 6 can be used in particular for the announcement of messages used for the evacuation.
  • Other devices of the type different from the fire detectors 3 could be, for example, surveillance cameras or background music speakers (for example, in department stores and the like).
  • an additional center 7 is provided, to which the bus 2 can be switched through switch 8.
  • the additional center 7 can be quite similar to the fire panel 1.
  • the switches 8, which can also be simulated in software, can be actuated by the fire alarm panel 1 by means of a connection 9.
  • the fire panel 1 switches the bus 2 through the switch 8 during a certain part of the time, for example, half the time to by to operate the fire detector 3.
  • the bus 2 is switched through to the additional central station 7.
  • the actuation of the switches 8 and thus the switching between the two panels 1 and 7, for example, every 20 seconds or even every second take place.
  • the communication between fire alarm panel 1 and fire detectors 3 priority which means that upon receipt of an alarm from one of the fire detector 3, the bus 2 is switched to the fire panel 1 and the fire alarm is treated.
  • the treatment of the fire alarm can of course include the delivery of Evakuationsmeldonne on the device 6.
  • the safety-relevant detectors in particular the fire detectors 3 but also other detectors that have to meet special requirements, the possibility of electrical parameters of the signals on the detector line ( Bus 2) so that they can be easily and quickly detected.
  • a fire detector 3 load the detector line 2 so much that the voltage falls below a value corresponding to the normal operation.
  • this particular operating condition is detected and reported via the connection 9 of the fire panel 1.
  • the fire panel will then expediently interrupt the connection between the detector loop 2 via the switch 8 to the additional center 7 by the switch 8 are brought by means of the connection 9 in the idle state and the detector line 2 is connected to the fire panel 1.
  • the fire panel 1 can then record the connection with the fire detectors 3 with the appropriate communication protocols and thus receive the alarm message.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)

Abstract

A fire alarm danger unit has central alarm with signalling loop and with a danger alarm (3). On the signalling loop (2), further devices (4-7) are connected in addition to the alarms (3) and are assigned to an additional central control (7), and communication between the alarms (3) and central alarm (1) and communication between additional devices (4-7) and the additional central control (7) follows in different time -slots.

Description

Die vorliegende Erfindung betrifft eine Gefahrenmeldeanlage mit einer Alarmzentrale, einer Melderschleife und mit Gefahrenmeldem, die an diese Melderschleife angeschlossen sind.The present invention relates to a hazard alarm system with an alarm center, a detector loop and with danger alarms that are connected to this detector loop.

Derartige Gefahrenmeldeanlagen können insbesondere Brandmeldeanlagen mit einer Brandmeldezentrale und an einen die Melderschleife bildenden Bus angeschlossenen Brandmeldern oder Einbruchmeldeanlagen mit einer Einbruchmeldezentrale und an den Bus angeschlossenen Einbruchmeldern sein. Bei Brandmeldeanlagen war es bisher nicht zulässig, auf der Melderschleife zusätzlich noch andere Geräte zu betreiben, weil man befürchtet hat, dass die Funktion der Brandmeldeanlage durch diese anderen Geräte beeinträchtigt werden könnte. Wenn beispielsweise Brandmelder und Klimaregler an denselben Bus angeschaltet sind, würden bei der Entstehung eines Brandes die Klimaregler eine Temperaturerhöhung feststellen und in der Folge Meldungen zur Reduktion der Heizung oder zum Einschalten der Kühlung an die Klimazentrale senden. Dabei könnten im schlimmsten Fall so viele derartige Meldungen abgesetzt werden, dass der Bus blockiert wird und die Brandmelder nicht mehr ihre Alarmmeldungen schicken können.Such alarm systems can be in particular fire alarm systems with a fire alarm panel and connected to a bus forming the detector loop fire detectors or burglar alarm systems with a burglar alarm and burglar alarms connected to the bus. In the case of fire alarm systems, it was not yet permissible to operate other devices on the detector loop because it was feared that the function of the fire alarm system could be impaired by these other devices. If, for example, fire detectors and climate controllers are connected to the same bus, the climate controllers would detect a temperature increase when a fire started and subsequently send messages to reduce the heating or switch on the cooling system to the central air conditioning unit. In the worst case, so many such messages could be discontinued that the bus is blocked and the fire detectors can no longer send their alarm messages.

Die EP 0689145 A1 beschreibt eine Möglichkeit den Zugang von verschiedenen Systemen. Es wird den Systemen entsprechend ihrer eigenen spezifischen Modi, wie Protokoll, Geschwindigkeit etc. ein allgemeiner Bus mit einer Zeitaufteilung für den Zugang zum Bus zugeordnet. Am Ende seines Übertragungszyklus erzeugt das System, das den Bus zu der Zeit steuert, ein Ereignis, das eine Synchronisierungsgrundlage für alle Vorrichtungen festlegt, die auf der Linie vorhanden sind. Diese tragen dann zur Anordnung eines aufeinander folgenden Konfliktbytes bei, das zur Identifikation des Systems führt und damit wird die Steuerung des Systems erlangt.The EP 0689145 A1 describes one way the access of different systems. A general bus with time sharing for access to the bus is assigned to the systems according to their own specific modes such as protocol, speed, etc. At the end of its transmission cycle, the system that controls the bus at the time generates an event that establishes a synchronization basis for all devices present on the line. These then contribute to the arrangement of a successive conflict byte, which leads to the identification of the system and thus the control of the system is obtained.

Durch die Erfindung soll nun eine Gefahrenmeldeanlage angegeben werden, welche so robust ist, dass auf der Melderschleife ein problemloser gleichzeitiger Betrieb von Gefahrenmeldern und anderen Geräten möglich ist.The invention is now a danger detection system will be specified, which is so robust that a trouble-free simultaneous operation of hazard detectors and other devices is possible on the detector loop.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass an den Bus zusätzlich zu den Gefahrenmeldern weitere Geräte eines anderen Typs angeschlossen sind, denen eine zusätzliche Zentrale zugeordnet ist, und dass die Kommunikation zwischen den Befahrenmeldern und der Alarmzentrale und die Kommunikation zwischen den weiteren Geräten und der zusätzlichen Zentrale in verschiedenen Zeitfenstern erfolgt.This object is achieved according to the invention that in addition to the danger detectors further devices of a different type are connected to the bus, which is assigned an additional center, and that the communication between the traffic detectors and the alarm center and the communication between the other devices and the additional Central is done in different time windows.

Das Durchschalten der Melderschleife an eine der Zentralen erfolgt durch ein von der Alarmzentrale gesteuertes Schaltmittel.The switching of the detector loop to one of the control panels is done by a controlled by the alarm center switching means.

Eine erste bevorzugte Ausführungsform der erfindungsgemässen Gefahrenmeldeanlage ist dadurch gekennzeichnet, dass das Durchschalten der Melderschleife an eine der Zentralen in einem vorgegebenen Zeitraster erfolgt. Vorzugsweise ist die Melderschleife mindestens 50% der Zeit an die Brandmeldezentrale durchgeschaltet.A first preferred embodiment of the inventive hazard alarm system is characterized in that the switching through of the detector loop to one of the control panels takes place in a predetermined time grid. Preferably, the detector loop is turned on at least 50% of the time to the fire panel.

Eine zweite bevorzugte Ausführungsform der erfindungsgemässen Gefahrenmeldeanlage ist dadurch gekennzeichnet, dass die Gefahrenmelder mit Einrichtungen versehen sind, die es gestatten, Parameter von Signalen auf der Melderschleife auf einem Wert zu halten, der ausserhalb des im normalen Betrieb eingehaltenen Wertebereichs liegt, dass zusätzliche Einrichtungen vorgesehen sind, die den genannten Wert prüfen, und dass bei einer Abweichung dieses Wertes von dem im normalen Betrieb zu erwartenden Wert eine Meldung an die Alarmzentrale erfolgt, wodurch diese in die Lage versetzt wird, eine Verbindung zu den Gefahrenmeldern und gegebenenfalls anderen sicherheitsrelevanten Meldern aufzubauen.A second preferred embodiment of the hazard warning system according to the invention is characterized in that the hazard alarms are provided with devices which make it possible to keep parameters of signals on the detector loop at a value which is outside the range of values maintained in normal operation that additional devices are provided that check the said value, and that if this value deviates from the value expected during normal operation, a message is sent to the alarm center, enabling it to establish a connection to the hazard detectors and, where appropriate, other safety related detectors.

Eine weitere bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass die genannten Parameter von Signalen auf der Melderschleife durch die Spannung oder den Strom gebildet sind, und dass die genannten zusätzlichen Einrichtungen Teil der Schaltmittel für das Durchschalten der Melderschleife an eine der Zentralen sind.A further preferred embodiment is characterized in that said parameters of signals are formed on the detector loop by the voltage or the current, and in that said additional means are part of the switching means for switching the detector loop to one of the control panels.

Eine weitere bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass die Gefahrenmeldeanlage durch eine Brandmeldeanlage mit einer Brandmeldezentrale und an die Melderschleife angeschlossenen Brandmeldern oder durch eine Einbruchmeldeanlage mit einer Einbruchmeldezentrale und an die Melderschleife angeschlossenen Einbruchmeldern gebildet ist. Meldungen von Brandmeldern werden vorzugsweise mit Priorität behandelt und unterdrücken das Durchschalten der Melderschleife auf die mindestens eine andere Zentrale.A further preferred embodiment is characterized in that the alarm system is formed by a fire alarm system with a fire alarm panel and fire detectors connected to the detector loop or by a burglar alarm system with a burglar alarm panel and burglar alarms connected to the detector loop. Messages from fire detectors are preferably treated with priority and suppress the switching through the detector loop on the at least one other center.

Weitere bevorzugte Ausführungsformen und Weiterentwicklungen der erfindungsgemässen Gefahrfenmeldeanlage sind in den abhängigen Ansprüchen 5 bis 9 beansprucht.Further preferred embodiments and further developments of the inventive hazard detection system are claimed in the dependent claims 5 to 9.

Im Folgenden wird die Erfindung anhand eines in der einzigen Zeichnung dargestellten Ausführungsbeispiels einer erfindungsgemässen Brandmeldeanlage näher erläutert.In the following the invention will be explained in more detail with reference to an exemplary embodiment of a fire alarm system according to the invention shown in the single drawing.

Die Erläuterung der Erfindung anhand einer Brandmeldeanlage soll nicht als Einschränkung verstanden werden. Die in der Zeichnung dargestellte Brandmeldeanlage repräsentiert vielmehr ganz allgemein eine Gefahrenmeldeanlage mit einer Alarmzentrale und Gefahrenmeldern; es kann sich also um eine Brandmeldeanlage, eine Einbruchmeldeanlage oder eine Gasmeldeanlage handeln.The explanation of the invention with reference to a fire alarm system should not be construed as limiting. Rather, the fire alarm system shown in the drawing generally represents a hazard alarm system with an alarm center and hazard detectors; it may therefore be a fire alarm system, a burglar alarm system or a gas detection system.

Die dargestellte Brandmeldeanlage umfasst eine Brandmeldezentrale 1, eine durch einen Bus 2 gebildete Melderschleife und eine Mehrzahl von an den Bus 2 angeschlossenen Brandmeldern 3. Diese Brandmelder 3 sind in der Figur einheitlich dargestellt. Es kann sich in Wirklichkeit aber um Melder in unterschiedlicher Ausführung handeln, die aber alle dazu dienen Brände zu erkennen und die deshalb besonderen Sicherheitsansprüchen genügen müssen. Insbesondere sind unter dem Begriff Brandmelder auch Handfeuermelder zu verstehen. Bei geringeren Ansprüchen an die Übertragungssicherheit können die Melder auch nur über eine einfache Melderleitung angeschlossen werden. Der Bus 2 ist über Umschalter 8 an die Brandmeldezentrale 1 angeschlossen.The illustrated fire alarm system comprises a fire alarm panel 1, a formed by a bus 2 Detector loop and a plurality of connected to the bus 2 fire detectors 3. These fire alarms 3 are shown in the figure uniform. In reality, however, they can be detectors of different designs, but they all serve to detect fires and therefore have to comply with special safety requirements. In particular, the term fire detectors are also to be understood as manual call points. With lower demands on the transmission reliability, the detectors can also be connected only via a simple detector line. The bus 2 is connected via switch 8 to the fire panel 1.

Darstellungsgemäss sind an den Bus 2 ausserdem Einbruchmelder 4, ein Klimaregler 5 und eine Einrichtung 6 zur Übertragung von Sprache oder Musik angeschlossen. Die Einrichtung 6 kann insbesondere für die Durchsage von für die Evakuation dienenden Meldungen verwendet werden. Weitere Geräte des von den Brandmeldern 3 verschiedenen Typs könnten beispielsweise Überwachungskameras oder Lautsprecher für Hintergrundmusik (beispielsweise in Kaufhäusern und dergleichen) sein. Zusätzlich zur Brandmeldezentrale 1 ist eine Zusatzzentrale 7 vorgesehen, an welche der Bus 2 über Umschalter 8 durchgeschaltet werden kann. Die Zusatzzentrale 7 kann mit der Brandmeldezentrale 1 durchaus baugleich sein.As shown, burglar alarms 4, a climate controller 5 and a device 6 for transmitting voice or music are also connected to the bus 2. The device 6 can be used in particular for the announcement of messages used for the evacuation. Other devices of the type different from the fire detectors 3 could be, for example, surveillance cameras or background music speakers (for example, in department stores and the like). In addition to the fire panel 1 an additional center 7 is provided, to which the bus 2 can be switched through switch 8. The additional center 7 can be quite similar to the fire panel 1.

Die Schalter 8, die auch in Software nachgebildet sein können, sind durch die Brandmeldezentrale 1 mithilfe einer Verbindung 9 betätigbar. Die Brandmeldezentrale 1 schaltet den Bus 2 über die Schalter 8 während eines bestimmten Teils der Zeit, beispielsweise die halbe Zeit, zu sich durch, um die Brandmelder 3 zu bedienen. Während der restlichen 50% der Zeit wird der Bus 2 zur Zusatzzentrale 7 durchgeschaltet. Die Betätigung der Schalter 8 und somit das Umschalten zwischen den beiden Zentralen 1 und 7, kann beispielsweise alle 20 Sekunden oder auch alle Sekunden erfolgen. Selbstverständlich hat die Kommunikation zwischen Brandmeldezentrale 1 und Brandmeldern 3 Priorität, was bedeutet, dass bei Eingang eines Alarms von einem der Brandmelder 3 der Bus 2 auf die Brandmeldezentrale 1 durchgeschaltet und der Brandalarm behandelt wird. Bis zur Beendigung der Behandlung des Brandalarms wird das automatische Umschalten des Busses auf die andere Zentrale 7 vorerst verhindert, wobei bei Vorhandensein einer Einrichtung 6 zur Sprachübertragung die Behandlung des Brandalarms selbstverständlich die Abgabe von Evakuationsmeldungen über die Einrichtung 6 einschliessen kann.The switches 8, which can also be simulated in software, can be actuated by the fire alarm panel 1 by means of a connection 9. The fire panel 1 switches the bus 2 through the switch 8 during a certain part of the time, for example, half the time to by to operate the fire detector 3. During the remaining 50% of the time, the bus 2 is switched through to the additional central station 7. The actuation of the switches 8 and thus the switching between the two panels 1 and 7, for example, every 20 seconds or even every second take place. Of course, the communication between fire alarm panel 1 and fire detectors 3 priority, which means that upon receipt of an alarm from one of the fire detector 3, the bus 2 is switched to the fire panel 1 and the fire alarm is treated. Until the termination of the treatment of the fire alarm automatic switching of the bus to the other center 7 is prevented for the time being, in the presence of a device 6 for voice transmission, the treatment of the fire alarm can of course include the delivery of Evakuationsmeldungen on the device 6.

Während der Zeit, in welcher der Bus 2 auf die zusätzliche Zentrale 7 duchgeschaltet ist, besteht keine direkte Verbindung zwischen den Brandmeldern 3 und der Brandmeldezentrale 1. Falls während dieser Zeit ein Brand erkannt wird und aufgrund von Vorschriften oder anderen Gegebenheiten sofort gemeldet werden muss, müsste die entsprechende Meldung vom Brandmelder 3 über den Bus 2, die Umschalter 8 zur zusätzlichen Zentrale 7 und von dort aus über eine zusätzlich zu schaffende Verbindung zur Brandmeldezentrale 1 gelangen. Da die zusätzliche Zentrale 7 aber nicht in allen Fällen gemäss den besonderen Ansprüchen der Sicherheitstechnik gebaut ist, muss die gerade genannte Möglichkeit zur sofortigen Meldungen von Brandalarmen an die Brandmeldezentrale 1 als unsicher gelten.During the time in which the bus 2 is switched to the additional control panel 7, there is no direct connection between the fire detectors 3 and the fire control panel 1. If a fire is detected during this time and must be reported immediately due to regulations or other circumstances, would have the corresponding message from the fire detector 3 via the bus 2, the switch 8 to the additional center 7 and from there via an additional to be created connection to the fire panel 1. However, since the additional center 7 is not built in all cases according to the special requirements of safety technology, the just mentioned possibility for immediate reporting of fire alarms to the fire panel 1 must be considered unsafe.

Um eine Möglichkeit zur sofortigen Alarmierung zu schaffen, die höheren Ansprüchen an die Sicherheit genügt, kann den sicherheitsrelevanten Meldern, insbesondere den Brandmeldern 3 aber auch anderen Meldern, die besonderen Ansprüchen genügen müssen, die Möglichkeit gegeben werden, elektrische Parameter der Signale auf der Melderleitung (Bus 2) so zu verändern, dass sie einfach und schnell erkannt werden können.In order to create a possibility for immediate alerting, which meets higher security requirements, the safety-relevant detectors, in particular the fire detectors 3 but also other detectors that have to meet special requirements, the possibility of electrical parameters of the signals on the detector line ( Bus 2) so that they can be easily and quickly detected.

Beispielsweise kann ein Brandmelder 3 die Melderleitung 2 so stark belasten, dass die Spannung unter einen Wert fällt der dem Normalbetrieb entspricht. Mithilfe von zusätzlichen Einrichtungen in den Schaltern 8 oder auch einer besonderen, in der Figur nicht eingezeichneten Einrichtung, die in direkter Verbindung zur Melderschleife 2 steht, wird dieser besondere Betriebszustand erkannt und über die Verbindung 9 der Brandmeldezentrale 1 gemeldet. Die Brandmeldezentrale wird daraufhin zweckmässigerweise die Verbindung zwischen der Melderschleife 2 über die Schalter 8 zur zusätzlichen Zentrale 7 unterbrechen, indem die Schalter 8 mithilfe der Verbindung 9 in den Ruhezustand gebracht werden und die Melderleitung 2 mit der Brandmeldezentrale 1 verbunden wird. Die Brandmeldezentrale 1 kann daraufhin mit den dafür vorgesehenen Kommunikationsprotokollen die Verbindung mit den Brandmeldern 3 aufnehmen und so die Alarmmeldung entgegennehmen.For example, a fire detector 3 load the detector line 2 so much that the voltage falls below a value corresponding to the normal operation. With the help of additional facilities in the switches 8 or a special, not shown in the figure device that is in direct connection to the detector loop 2, this particular operating condition is detected and reported via the connection 9 of the fire panel 1. The fire panel will then expediently interrupt the connection between the detector loop 2 via the switch 8 to the additional center 7 by the switch 8 are brought by means of the connection 9 in the idle state and the detector line 2 is connected to the fire panel 1. The fire panel 1 can then record the connection with the fire detectors 3 with the appropriate communication protocols and thus receive the alarm message.

Claims (12)

  1. Hazard signalling system having an alarm control centre (1), a detector loop (2), hazard detectors (3) which are connected to this detector loop (2), and further units (4-7) of another type which are connected to this detector loop (2) in addition to the hazard detectors (3), the further units (4-7) being assigned an additional control centre (7), and communication between the hazard detectors (3) and the alarm control centre (1) and communication between the further units (4-7) and the additional control centre (7) taking place in different time windows, characterized in that the detector loop (2) is connected to one of the control centres (1, 7) by a switching means which is controlled by the alarm control centre (1).
  2. Hazard signalling system according to Claim 1, characterized in that the detector loop (2) is connected to one of the control centres (1, 7) in a predefined time frame.
  3. Hazard signalling system according to Claim 2, characterized in that means are provided for connecting the detector loop (2) to the alarm control centre (1) in at least 50% of the time.
  4. Hazard signalling system according to one of Claims 1 to 3, characterized in that the detector loop (2) is formed by a bus.
  5. Hazard signalling system according to one of Claims 2 to 4, characterized in that the switching means (8) is simulated in software.
  6. Hazard signalling system according to one of Claims 1 to 5, characterized in that said further units of another type comprise one or more units in the form of intruder detectors (4), air-conditioning controllers (5), units for transmitting voice or music (6) and/or monitoring cameras.
  7. Hazard signalling system according to Claim 4, characterized in that the hazard detectors (3) communicate with the alarm control centre (1) and the other units (4, 5, 6) communicate with the at least one other control centre (7) using the same bus protocol.
  8. Hazard signalling system according to Claim 4 characterized in that the hazard detectors (3) communicate with the alarm control centre (1) and the other units (4, 5, 6) communicate with the at least one other control centre (7) using a different bus protocol.
  9. Hazard signalling system according to one of Claims 2 to 8, characterized in that the hazard detectors (3) are provided with devices which allow parameters of signals on the detector loop (2) to be kept at a value which is outside the range of values observed during normal operation, in that additional devices which check said value are provided, and in that, in the event of a discrepancy between this value and the value to be expected during normal operation, the alarm control centre (1) is notified, as a result of which it is made possible for the latter to set up a connection to the hazard detectors (3) and to other safety-relevant detectors, if necessary.
  10. Hazard signalling system according to Claim 9, characterized in that said parameters of signals on the detector loop (2) are formed by the voltage or the current, and in that said additional devices are part of the switching means (8) for connecting the detector loop (2) to one of the control centres (1, 7).
  11. Hazard signalling system according to one of Claims 1 to 10, characterized in that the hazard signalling system is formed by a fire signalling system having a fire signalling control centre (1) and fire detectors (3) which are connected to the detector loop (2), or by an intruder signalling system having an intruder signalling control centre and intruder detectors which are connected to the detector loop (2).
  12. Hazard signalling system according to Claim 11, characterized in that means are provided for giving priority treatment to the messages from fire detectors (3) and for preventing the detector loop (2) from being connected to the at least one other control centre (7).
EP03028034.1A 2003-12-06 2003-12-06 Hazard signalling system Expired - Lifetime EP1538580B9 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50311248T DE50311248D1 (en) 2003-12-06 2003-12-06 Alarm system
EP03028034.1A EP1538580B9 (en) 2003-12-06 2003-12-06 Hazard signalling system
AT03028034T ATE424600T1 (en) 2003-12-06 2003-12-06 HAZARD DETECTION SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03028034.1A EP1538580B9 (en) 2003-12-06 2003-12-06 Hazard signalling system

Publications (4)

Publication Number Publication Date
EP1538580A1 EP1538580A1 (en) 2005-06-08
EP1538580B1 EP1538580B1 (en) 2009-03-04
EP1538580B2 true EP1538580B2 (en) 2018-10-03
EP1538580B9 EP1538580B9 (en) 2019-05-15

Family

ID=34442973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028034.1A Expired - Lifetime EP1538580B9 (en) 2003-12-06 2003-12-06 Hazard signalling system

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EP (1) EP1538580B9 (en)
AT (1) ATE424600T1 (en)
DE (1) DE50311248D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8280070B2 (en) * 2008-08-20 2012-10-02 Siemens Industry, Inc. Arrangement and method for communicating audio and DC signals
EP2911128A1 (en) 2014-02-24 2015-08-26 Siemens Schweiz AG Hazard warning assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1268079B1 (en) 1994-06-23 1997-02-20 Teknox Srl PROCEDURE FOR REGULATING THE ACCESS OF SEVERAL SYSTEMS TO A BUS, FOR EXAMPLE FOR APPLICATIONS IN THE HOME AUTOMATION SECTOR, AND RELATED

Also Published As

Publication number Publication date
ATE424600T1 (en) 2009-03-15
EP1538580A1 (en) 2005-06-08
EP1538580B1 (en) 2009-03-04
DE50311248D1 (en) 2009-04-16
EP1538580B9 (en) 2019-05-15

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