EP2093737B1 - Active line terminator module - Google Patents

Active line terminator module Download PDF

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Publication number
EP2093737B1
EP2093737B1 EP08003270.9A EP08003270A EP2093737B1 EP 2093737 B1 EP2093737 B1 EP 2093737B1 EP 08003270 A EP08003270 A EP 08003270A EP 2093737 B1 EP2093737 B1 EP 2093737B1
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EP
European Patent Office
Prior art keywords
termination module
line termination
active line
constant
current sink
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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.)
Active
Application number
EP08003270.9A
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German (de)
French (fr)
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EP2093737A1 (en
Inventor
Arne Stamer
Jan Heick
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Minimax GmbH and Co KG
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Minimax GmbH and Co KG
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Priority to PL08003270T priority Critical patent/PL2093737T3/en
Application filed by Minimax GmbH and Co KG filed Critical Minimax GmbH and Co KG
Priority to EP08003270.9A priority patent/EP2093737B1/en
Priority to ES08003270.9T priority patent/ES2442520T3/en
Priority to PT80032709T priority patent/PT2093737E/en
Priority to US12/378,150 priority patent/US20090212937A1/en
Priority to CNA2009100064322A priority patent/CN101515403A/en
Priority to RU2009106144/08A priority patent/RU2009106144A/en
Publication of EP2093737A1 publication Critical patent/EP2093737A1/en
Application granted granted Critical
Publication of EP2093737B1 publication Critical patent/EP2093737B1/en
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    • 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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/123—Checking intermittently signalling or alarm systems of line circuits

Definitions

  • the invention relates to an active line termination module for monitoring a line impedance of electrical systems according to the features of the first claim.
  • the active line termination module for monitoring line impedance of electrical equipment is suitable for use in monitoring fire detection lines, in particular for use in signaling sockets at the end of fire detection lines.
  • the monitoring of limit lines for wire break and short circuit has hitherto been carried out via a monitoring current, which is caused by a resistance at the end of the line to be monitored, in particular a fire detection line.
  • This monitoring current through the resistor plus the current consumption of the fire detectors on the line forms the quiescent current, which is continuously monitored by the control center. If this quiescent current drops below a certain value, the control panel recognizes this as an open circuit on the line and reports a fault.
  • Another disadvantage is that an area is present (about 50 ohms to 1,000 ohms), in which no faults are displayed, although an alarm can not be reliably evaluated.
  • EP 1 855 261 A 1 are known a method and a device for monitoring a reporting line of a fire alarm system for disturbances, the fire alarm system is acted upon in operation with a line current and having a formed by a TVS diode end member. There is a monitoring of the line current and / or the line voltage. Disturbances of the reporting line are detected by a brief increase and by a brief lowering of the line current. The evaluation takes place via the voltage level and not via the current. The evaluation is carried out by the fire alarm panel, from which also the increase and decrease of the line current done, but not by a module at the end of the fire alarm line.
  • WO 2009/087269 A1 discloses a monitoring device and a method for monitoring the operating state of supply and / or signal lines of a reporting system, in particular a fire protection and / or hazard detection system and thus also of fire detection lines.
  • the monitoring device which can also be designed as an end-of-line module, comprises a measuring device for generating a measuring signal, an evaluation device and a controllable signal source, which is designed for coupling a test signal into the supply and / or signal lines.
  • the measurement signal includes the system response of the supply and / or signal lines to the test signal.
  • the coupling of a test signal for example via a controllable constant current source or a current sink, which are controlled by a microcontroller.
  • the solution according to the invention provides for an active line termination module for monitoring a line impedance of electrical systems, in which a constant current sink with a light indicator, a voltage regulator and an intelligent electronic component are arranged between the lines to be monitored so that the intelligent electronic component is connected to the constant current sink by means of a line ,
  • the active line termination module is suitable for monitoring lines, in particular alarm lines of any kind, but in particular of monitored lines of a fire detection line.
  • the device according to the invention can be designed mechanically so that it can be plugged into a reporting socket at the end of a fire detection line as a line termination. This can be done suitably by one or more connectors.
  • the active line termination module according to the invention can also be integrated directly into the circuit of an alarm detector, in particular a fire detector, which represents an important embodiment variant, especially for systems to be newly designed.
  • a fire detector which represents an important embodiment variant, especially for systems to be newly designed.
  • existing microcontrollers can be used in the fire detector.
  • the constant current sink of the active line termination module is controlled by an intelligent electronic component which forms the quiescent current for the line to be monitored, the intelligent electronic component cyclically switching off the constant current sink for a short time or increasing the constant current and the voltage at the line to be monitored before and after the shutdown or the current increase measures. If the impedance is too high, the constant current sink is switched off or / and a signal is sent to a monitoring device.
  • the monitoring device may be the fire alarm or its alarm system.
  • the intelligent electronic module can precede the intelligent electronic module with a voltage regulator.
  • the voltage regulator can also be integrated in the intelligent module.
  • the intelligent component can represent a microcontroller or a programmable logic component.
  • the light indicator can represent a light-emitting diode in an advantageous embodiment. If the value of the measured line impedance rises above the specified value, the intelligent electronic component switches off the constant current sink and the indicator lamp goes out, so that the monitoring center registers a wire break. The extinction of the LED shows optically but also a non-interference-free operation.
  • the indicator light can also be replaced by another suitable signal generator.
  • FIG. 1 shows the block diagram of an active line termination module 1, which can be plugged with the contacts 2 on the line to be monitored.
  • the light-emitting diode 5 and the constant current sink 4 are arranged and connected to each other by lines.
  • a microcontroller 3 with voltage regulator 6 is arranged as an intelligent electronic component. From the microcontroller 3, a line 7 extends to the constant current sink 4.
  • the constant current sink 4 is controlled by the microcontroller 3 in the case of rest and forms the quiescent current for the line to be monitored.
  • the microcontroller 3 cyclically switches off the constant-current sink 4 for a short time and / or increases it Constant current for a short time and measures the voltage at the line before and after this shutdown or current increase. The difference between these two values is directly proportional to the line impedance of the line to be monitored.
  • the microcontroller 3 switches off the constant-current sink 4 and the light-emitting diode 5 goes out, so that the monitoring center registers a wire break.
  • the extinction of the LED is also the visual indication for a trouble-free operation.
  • FIG. 2 shown embodiment provides to arrange the voltage regulator 6 in front of the microcontroller 3.
  • FIG. 3 shows the active line termination module 1, which the circuits of FIG. 1 or FIG. 2 may lead from the lines 8 to the contacts 2. With these contacts 2, the active line termination module 1 to the reporting socket, such as a fire detection line, plugged so that it is continuously verifiable, the light indicator in the active line termination module indicates the trouble-free operation or a wire break.
  • the reporting socket such as a fire detection line
  • FIG. 4 an embodiment is shown, in which the active line termination module 1 is integrated into the circuit of a fire detector 9, wherein a variant is shown, in which the voltage regulator 6 is connected upstream of the microcontroller 3.
  • FIG. 5 shows a variant in which the active line termination module 1 is integrated into the circuit of the fire detector 9, wherein the voltage regulator 6 is integrated into the microcontroller 3.
  • FIG. 6 shows an embodiment in which the microcontroller 10 of the fire detector 9 are connected to a contact current sink 4 and the light emitting diode 5 and thus a fire detector with integrated line termination module is created.
  • the device represents a particular embodiment of FIG. 5 in which the microcontroller 3, 10 in fire detector 9 and line termination module 1 need not be duplicated, since the microcontroller 10 of the fire detector takes over the control of the constant current sink 4.
  • the contacts 11 of the fire detector 9 to be monitored fire detection line are not necessarily pluggable. These can also be designed as screw terminals etc.
  • the solution according to the invention can be made mechanically compatible with the conventional connection resistance, so that a retrofitting of existing systems is possible.
  • the system reliability increases due to interference when exceeding the permissible line impedance, so that in all resistance ranges faults are displayed.
  • the quiescent current of the fire detection lines is voltage-independent by the constant current sink, which increases the reliability of the evaluation of the line current through the fire alarm panel.
  • a visual display for trouble-free operation by the light indicator is provided.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Description

Die Erfindung betrifft ein aktives Linienabschlussmodul zur Überwachung einer Leitungsimpedanz von elektrischen Anlagen nach den Merkmalen des ersten Patentanspruches.The invention relates to an active line termination module for monitoring a line impedance of electrical systems according to the features of the first claim.

Das aktive Linienabschlussmodul zur Überwachung einer Leitungsimpedanz von elektrischen Anlagen ist geeignet für den Einsatz zur Überwachung von Brandmeldelinien, insbesondere für den Einsatz in Meldesockeln am Ende von Brandmeldelinien.The active line termination module for monitoring line impedance of electrical equipment is suitable for use in monitoring fire detection lines, in particular for use in signaling sockets at the end of fire detection lines.

Die Überwachung von Grenzwertlinien auf Drahtbruch und Kurzschluss erfolgt bisher über einen Überwachungsstrom, der durch einen Widerstand am Ende der zu überwachenden Linie, insbesondere einer Brandmeldelinie, verursacht wird. Dieser Überwachungsstrom durch den Widerstand plus die Stromaufnahme der Brandmelder auf der Linie bildet den Ruhestrom, der von der Zentrale kontinuierlich überwacht wird. Sinkt dieser Ruhestrom unter einen bestimmten Wert, erkennt die Zentrale dieses als Drahtbruch auf der Linie und meldet Störung.The monitoring of limit lines for wire break and short circuit has hitherto been carried out via a monitoring current, which is caused by a resistance at the end of the line to be monitored, in particular a fire detection line. This monitoring current through the resistor plus the current consumption of the fire detectors on the line forms the quiescent current, which is continuously monitored by the control center. If this quiescent current drops below a certain value, the control panel recognizes this as an open circuit on the line and reports a fault.

Jüngere europäische Normen fordern, dass bereits die Erhöhung der Leitungsimpedanz auf den als Maximum spezifizierten Wert zur Anzeige einer Drahtbruchmeldung führen muss. Das ist mit der herkömmlichen Methode sehr schwierig, da eine Ruhestromabsenkung um ca. 0,1 mA bereits zu einer Störungsmeldung führen müsste. Da der reale Linienruhestrom durch die pulsierende Stromaufnahme einiger Melder um mehrere mA schwanken kann, ist ein Erfüllen jüngster Normen mit der herkömmlichen Technik nicht möglich.Recent European standards require that the increase of the line impedance to the value specified as maximum must lead to the display of an open circuit message. This is very difficult with the conventional method, since a quiescent current reduction by about 0.1 mA would already lead to a fault message. Since the real line quiescent current can fluctuate by several mA due to the pulsating current consumption of some detectors, it is not possible to meet the latest standards with the conventional technology.

Nachteilig ist weiterhin, dass ein Bereich vorhanden ist (ca. 50 Ohm bis 1.000 Ohm), in dem keine Störungen angezeigt werden, obwohl ein Alarm nicht mehr zuverlässig ausgewertet werden kann.Another disadvantage is that an area is present (about 50 ohms to 1,000 ohms), in which no faults are displayed, although an alarm can not be reliably evaluated.

Aus EP 1 855 261 A 1 sind ein Verfahren und eine Einrichtung zur Überwachung einer Meldelinie einer Brandmeldeanlage auf Störungen bekannt, wobei die Brandmeldeanlage im Betrieb mit einem Linienstrom beaufschlagt wird und ein durch eine TVS-Diode gebildetes Endglied aufweist. Es erfolgt eine Überwachung des Linienstroms und/oder der Linienspannung. Störungen der Meldelinie werden durch eine kurzzeitige Erhöhung und durch eine kurzzeitige Absenkung des Linienstromes erkannt. Die Auswertung erfolgt über die Spannungspegel und nicht über den Strom. Die Auswertemaßnahme wird von der Brandmeldezentrale vorgenommen, von der auch die Erhöhung und die Absenkung des Linienstromes erfolgen, nicht jedoch von einem Modul am Ende der Brandmeldelinie. WO 2009/087269 A1 offenbart eine Überwachungsvorrichtung und ein Verfahren zur Überwachung des Betriebszustands von Versorgungs- und/oder Signalleitungen eines Meldesystems, insbesondere eines Brandschutz- und/oder Gefahrenmeldesystems und somit auch von Brandmeldelinien. Die Überwachungsvorrichtung, welche auch als End-Of-Line Modul ausgebildet sein können, umfasst eine Messeinrichtung zur Erzeugung eines Messsignals, eine Auswerteeinrichtung und eine steuerbare Signalquelle, welche zur Einkopplung eines Prüfsignals in die Versorgungs- und/oder Signalleitungen ausgebildet ist. Das Messsignal umfasst die Systemantwort der Versorgungs- und/oder Signalleitungen auf das Prüfsignal. Die Einkopplung eines Prüfsignals erfolgt beispielsweise über eine steuerbare Konstantstromquelle oder eine Stromsenke, welche über einen Mikrokontroller gesteuert werden.Out EP 1 855 261 A 1 are known a method and a device for monitoring a reporting line of a fire alarm system for disturbances, the fire alarm system is acted upon in operation with a line current and having a formed by a TVS diode end member. There is a monitoring of the line current and / or the line voltage. Disturbances of the reporting line are detected by a brief increase and by a brief lowering of the line current. The evaluation takes place via the voltage level and not via the current. The evaluation is carried out by the fire alarm panel, from which also the increase and decrease of the line current done, but not by a module at the end of the fire alarm line. WO 2009/087269 A1 discloses a monitoring device and a method for monitoring the operating state of supply and / or signal lines of a reporting system, in particular a fire protection and / or hazard detection system and thus also of fire detection lines. The monitoring device, which can also be designed as an end-of-line module, comprises a measuring device for generating a measuring signal, an evaluation device and a controllable signal source, which is designed for coupling a test signal into the supply and / or signal lines. The measurement signal includes the system response of the supply and / or signal lines to the test signal. The coupling of a test signal, for example via a controllable constant current source or a current sink, which are controlled by a microcontroller.

Es ist daher Aufgabe der Erfindung, ein Überwachungsmodul für den Linienabschluss von Meldelinien, insbesondere Brandmeldelinien, zu entwickeln, mit dem es zuverlässig möglich ist, Drahtbrüche Spannungsunabhängig zu ermitteln, wobei ein Nachrüsten bestehender Anlagen möglich sein soll.It is therefore an object of the invention to develop a monitoring module for the line termination of reporting lines, in particular fire detection lines, with which it is reliably possible to determine wire breaks voltage independent, with a retrofitting of existing systems should be possible.

Diese Aufgabe wird durch ein aktives Linienabschlussmodul nach den Merkmalen des ersten Patentanspruches gelöst.This object is achieved by an active line termination module according to the features of the first claim.

Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.Subclaims give advantageous embodiments of the invention again.

Die erfindungsgemäße Lösung sieht ein aktives Linienabschlussmodul zur Überwachung einer Leitungsimpedanz von elektrischen Anlagen vor, bei der zwischen den zu überwachenden Leitungen eine Konstantstromsenke mit Leuchtanzeige, ein Spannungsregler und ein intelligenter Elektronikbaustein so angeordnet sind, dass der intelligente Elektronikbaustein mittels einer Leitung mit der Konstantstromsenke verbunden ist. Das aktive Linienabschlussmodul eignet sich zur Überwachung von Leitungen, insbesondere Alarmleitungen jeglicher Art, insbesondere aber von zu überwachenden Linien einer Brandmeldelinie. Dazu kann die erfindungsgemäße Vorrichtung mechanisch so gestaltet sein, dass sie in einen Meldesockel am Ende einer Brandmeldelinie als Linienabschluß eingesteckt werden kann. Das kann in geeigneter Weise durch einen oder mehrere Stecker erfolgen. Das erfindungsgemäße aktive Linienabschlußmodul ist aber auch in die Schaltung eines Alarmmelders, insbesondere eines Brandmelders, direkt integrierbar, was besonders für neu zu gestaltende Anlagen eine wichtige Ausführungsvariante darstellt. Nach der Ausführungsvariante besteht zum einen die Möglichkeit, den Brandmelder in das einsteckbare Linienabschlussmodul zu integrieren, oder das Linienabschlussmodul fest mit dem Brandmelder zu verbinden oder in diesen zu integrieren. Bei Integration des Linienabschlussmoduls in den Brandmelder können im Brandmelder vorhandene Microcontroller genutzt werden.The solution according to the invention provides for an active line termination module for monitoring a line impedance of electrical systems, in which a constant current sink with a light indicator, a voltage regulator and an intelligent electronic component are arranged between the lines to be monitored so that the intelligent electronic component is connected to the constant current sink by means of a line , The active line termination module is suitable for monitoring lines, in particular alarm lines of any kind, but in particular of monitored lines of a fire detection line. For this purpose, the device according to the invention can be designed mechanically so that it can be plugged into a reporting socket at the end of a fire detection line as a line termination. This can be done suitably by one or more connectors. The active line termination module according to the invention, however, can also be integrated directly into the circuit of an alarm detector, in particular a fire detector, which represents an important embodiment variant, especially for systems to be newly designed. According to the embodiment variant, on the one hand, it is possible to integrate the fire detector into the plug-in line termination module, or to connect the line termination module firmly to the fire detector or to integrate it into it. When integrating the line termination module into the fire detector, existing microcontrollers can be used in the fire detector.

Die Konstantstromsenke des aktiven Linienabschlussmoduls wird im Ruhefall von einem intelligenten Elektronikbaustein angesteuert, welche den Ruhestrom für die zu überwachende Leitung bildet, wobei der intelligente Elektronikbaustein zyklisch die Konstantstromsenke für kurze Zeit abschaltet oder den Konstantstrom erhöht und die Spannung an der zu überwachenden Linie vor und nach der Abschaltung oder der Stromerhöhung misst. Bei zu hoher Impedanz wird die Konstantstromsenke abgeschaltet oder/und ein Signal an eine Überwachungseinrichtung gegeben. Die Überwachungseinrichtung kann der Brandmelder oder sein Alarmsystem darstellen.The constant current sink of the active line termination module is controlled by an intelligent electronic component which forms the quiescent current for the line to be monitored, the intelligent electronic component cyclically switching off the constant current sink for a short time or increasing the constant current and the voltage at the line to be monitored before and after the shutdown or the current increase measures. If the impedance is too high, the constant current sink is switched off or / and a signal is sent to a monitoring device. The monitoring device may be the fire alarm or its alarm system.

Vorteilhaft ist es, dem intelligenten Elektronikbaustein einen Spannungsregler vorzuschalten. In einer anderen vorteilhaften Ausgestaltung kann der Spannungsregler auch in den intelligenten Baustein integriert sein. Der intelligente Baustein kann einen Microcontroller oder einen programmierbaren Logikbaustein darstellen.It is advantageous to precede the intelligent electronic module with a voltage regulator. In another advantageous embodiment, the voltage regulator can also be integrated in the intelligent module. The intelligent component can represent a microcontroller or a programmable logic component.

Die Leuchtanzeige kann in vorteilhafter Ausgestaltung eine Leuchtdiode darstellen. Steigt der Wert der gemessenen Leitungsimpedanz über den vorgegebenen Wert, so schaltet der intelligente Elektronikbaustein die Konstantstromsenke aus und die Leuchtanzeige erlischt, so dass die Überwachungszentrale einen Drahtbruch registriert. Das Erlöschen der Leuchtdiode zeigt aber optisch auch einen nichtstörungsfreien Betrieb an. Die Leuchtanzeige kann auch durch einen anderen geeigneten Signalgeber ersetzt werden.The light indicator can represent a light-emitting diode in an advantageous embodiment. If the value of the measured line impedance rises above the specified value, the intelligent electronic component switches off the constant current sink and the indicator lamp goes out, so that the monitoring center registers a wire break. The extinction of the LED shows optically but also a non-interference-free operation. The indicator light can also be replaced by another suitable signal generator.

Im Folgenden wird die Erfindung an sechs Figuren und einem Ausführungsbeispiel näher erläutert. Die Figuren zeigen:

Figur 1:
Blockschaltbild eines aktiven Linienabschlussmoduls, bei dem der Spannungsregler in den Microcontroller integriert ist.
Figur 2:
Blockschaltbild eines aktiven Linienabschlussmoduls mit separatem Spannungsregler und Microcontroller.
Figur 3:
Aktives Linienabschlussmodul mit Leitungen und Steckverbindung für einen Meldesockel.
Figur 4:
Aktives Linienabschlussmodul in die Schaltung eines Brandmelders Integriert.
Figur 5:
Aktives Linienabschlussmodul, in die Schaltung eines Brandmelders integriert, wobei der Spannungsregler in den Microcontroller integriert ist.
Figur 6:
Aktives Linienabschlussmodul, in die Schaltung eines Brandmleders integriert.
In the following the invention will be explained in more detail in six figures and one embodiment. The figures show:
FIG. 1:
Block diagram of an active line termination module, in which the voltage regulator is integrated in the microcontroller.
FIG. 2:
Block diagram of an active line termination module with separate voltage regulator and microcontroller.
FIG. 3:
Active line termination module with cables and plug connection for a signaling socket.
FIG. 4:
Active line termination module integrated in the circuit of a fire detector.
FIG. 5:
Active line termination module, integrated in the circuit of a fire detector, with the voltage regulator integrated into the microcontroller.
FIG. 6:
Active line termination module, integrated in the circuit of a brand leather.

Die Figur 1 zeigt das Blockschaltbild eines aktiven Linienabschlussmoduls 1, welches mit den Kontakten 2 auf die zu überwachende Linie aufgesteckt werden kann.The FIG. 1 shows the block diagram of an active line termination module 1, which can be plugged with the contacts 2 on the line to be monitored.

Zwischen dem positiven und dem negativen elektrischen Kontakt 2 sind die Leuchtdiode 5 und die Konstantstromsenke 4 angeordnet und durch Leitungen miteinander verbunden. Parallel dazu ist als intelligenter Elektronikbaustein ein Microcontroller 3 mit Spannungsregler 6 angeordnet. Vom Microcontroller 3 verläuft eine Leitung 7 zur Konstantstromsenke 4. Die Konstantstromsenke 4 wird im Ruhefall von dem Microcontroller 3 angesteuert und bildet den Ruhestrom für die zu überwachende Linie. Der Microcontroller 3 schaltet zyklisch die Konstantstromsenke 4 für kurze Zeit ab und/oder erhöht den Konstantstrom kurzzeitig und misst die Spannung an der Linie vor und nach dieser Abschaltung bzw. Stromerhöhung. Die Differenz dieser beiden Werte ist direkt proportional zur Leitungsimpedanz der zu überwachenden Linie. Steigt der Wert der gemessenen Leitungsimpedanz über den vorgegebenen Wert, so schaltet der Microcontroller 3 die Konstantstromsenke 4 aus und die Leuchtdiode 5 erlischt, so dass die Überwachungszentrale einen Drahtbruch registriert. Das Erlöschen der LED ist aber auch die optische Anzeige für einen nicht störungsfreien Betrieb.Between the positive and the negative electrical contact 2, the light-emitting diode 5 and the constant current sink 4 are arranged and connected to each other by lines. In parallel, a microcontroller 3 with voltage regulator 6 is arranged as an intelligent electronic component. From the microcontroller 3, a line 7 extends to the constant current sink 4. The constant current sink 4 is controlled by the microcontroller 3 in the case of rest and forms the quiescent current for the line to be monitored. The microcontroller 3 cyclically switches off the constant-current sink 4 for a short time and / or increases it Constant current for a short time and measures the voltage at the line before and after this shutdown or current increase. The difference between these two values is directly proportional to the line impedance of the line to be monitored. If the value of the measured line impedance rises above the predetermined value, then the microcontroller 3 switches off the constant-current sink 4 and the light-emitting diode 5 goes out, so that the monitoring center registers a wire break. The extinction of the LED is also the visual indication for a trouble-free operation.

Die in Figur 2 gezeigte Ausführungsvariante sieht vor, den Spannungsregler 6 vor den Microcontroller 3 anzuordnen.In the FIG. 2 shown embodiment provides to arrange the voltage regulator 6 in front of the microcontroller 3.

Die Figur 3 zeigt das aktive Linienabschlussmodul 1, welches die Schaltungen von Figur 1 oder Figur 2 beinhalten kann, von dem Leitungen 8 zu den Kontakten 2 führen. Mit diesen Kontakten 2 ist das aktive Linienabschlussmodul 1 an den Meldesockel, beispielsweise einer Brandmeldelinie, einsteckbar, so dass diese kontinuierlich überprüfbar ist, wobei die Leuchtanzeige im aktiven Linienabschlussmodul den störungsfreien Betrieb oder einen Drahtbruch anzeigt.The FIG. 3 shows the active line termination module 1, which the circuits of FIG. 1 or FIG. 2 may lead from the lines 8 to the contacts 2. With these contacts 2, the active line termination module 1 to the reporting socket, such as a fire detection line, plugged so that it is continuously verifiable, the light indicator in the active line termination module indicates the trouble-free operation or a wire break.

In Figur 4 ist eine Ausführungsvariante gezeigt, bei der das aktives Linienabschlussmodul 1 in die Schaltung eines Brandmelders 9 integriert ist, wobei eine Ausführungsvariante dargestellt ist, bei der der Spannungsregler 6 dem Microcontroller 3 vorgeschaltet ist.In FIG. 4 an embodiment is shown, in which the active line termination module 1 is integrated into the circuit of a fire detector 9, wherein a variant is shown, in which the voltage regulator 6 is connected upstream of the microcontroller 3.

Die Figur 5 zeigt eine Ausführungsvariante, bei der das aktive Linienabschlussmodul 1 in die Schaltung des Brandmelders 9 integriert ist, wobei der Spannungsregler 6 in den Microcontroller 3 integriert ist.The FIG. 5 shows a variant in which the active line termination module 1 is integrated into the circuit of the fire detector 9, wherein the voltage regulator 6 is integrated into the microcontroller 3.

Die Figur 6 zeigt eine Ausführungsvariante, bei der der Microcontroller 10 des Brandmelders 9 mit einer Kontaktstromsenke 4 und der Leuchtdiode 5 verbunden sind und damit ein Brandmelder mit integriertem Linienabschlussmodul entsteht. Die Vorrichtung stellt eine besondere Ausführungsvariante von Figur 5 dar, wobei der Microcontroller 3, 10 in Brandmelder 9 und Linienabschlussmodul 1 nicht doppelt vorhanden sein muss, da der Microcontroller 10 des Brandmelders die Steuerung der Konstantstromsenke 4 übernimmt.The FIG. 6 shows an embodiment in which the microcontroller 10 of the fire detector 9 are connected to a contact current sink 4 and the light emitting diode 5 and thus a fire detector with integrated line termination module is created. The device represents a particular embodiment of FIG. 5 in which the microcontroller 3, 10 in fire detector 9 and line termination module 1 need not be duplicated, since the microcontroller 10 of the fire detector takes over the control of the constant current sink 4.

Die Kontakte 11 des Brandmelders 9 zu der zu überwachenden Brandmeldelinie sind nicht zwingend steckbar ausgebildet. Diese können auch als Schraubenklemmen etc. ausgeführt sein.The contacts 11 of the fire detector 9 to be monitored fire detection line are not necessarily pluggable. These can also be designed as screw terminals etc.

Die erfindungsgemäße Lösung kann mechanisch kompatibel zum herkömmlichen Anschlusswiderstand gefertigt werden, so dass ein Nachrüsten bestehender Anlagen möglich ist. Durch ihren Einsatz erhöht sich die Systemzuverlässigkeit durch Störanzeigen beim Überschreiten der zulässigen Linienimpedanz, so dass in allen Widerstandsbereichen Störungen angezeigt werden. Der Ruhestrom der Brandmeldelinien ist durch die Konstantstromsenke spannungsunabhängig, wodurch sich die Zuverlässigkeit bei der Auswertung des Linienstroms durch die Brandmeldezentrale erhöht. Weiterhin erfolgt eine optische Anzeige für den störungsfreien Betrieb durch die Leuchtanzeige.The solution according to the invention can be made mechanically compatible with the conventional connection resistance, so that a retrofitting of existing systems is possible. By their use, the system reliability increases due to interference when exceeding the permissible line impedance, so that in all resistance ranges faults are displayed. The quiescent current of the fire detection lines is voltage-independent by the constant current sink, which increases the reliability of the evaluation of the line current through the fire alarm panel. Furthermore, a visual display for trouble-free operation by the light indicator.

Liste der verwendeten BezugszeichenList of reference numbers used

11
Aktives LinienabschlussmodulActive line completion module
22
Kontakt des überwachenden aktiven LinienabschlussmodulsContact of the monitoring active line termination module
33
Microcontrollermicrocontrollers
44
KonstantstromsenkeConstant current sink
55
Leuchtdiodeled
66
Spannungsreglervoltage regulators
77
Leitung zwischen 3 und 4Line between 3 and 4
88th
Leitungen vom aktiven Linienabschlussmodul 1 zum Kontakt 2Lines from active line termination module 1 to contact 2
99
Schaltung eines BrandmeldersCircuit of a fire alarm
1010
Microcontroller des BrandmeldersMicrocontroller of the fire detector
1111
Kontakt des Brandmelders mit der zu überwachenden BrandmeldelinieContact of the fire detector with the fire detection line to be monitored

Claims (8)

  1. An active line termination module (1) for monitoring a line impedance of fire detection lines, the line termination module (1) exhibiting a controllable constant-current sink (4), a smart electronic component, preferably a microcontroller, and a signal transmitter, the controllable constant-current sink (4) being connected electronically to the smart electronic component, the controllable constant-current sink (4) being connected by means of contacts between the lines to be monitored of the fire detection line, the smart electronic component controlling the constant-current sink (4) in such a way that in the quiescent case the constant-current sink (4) forms the quiescent current for the line to be monitored, the smart electronic component cyclically switching off the constant-current sink (4) for a brief period or increases the constant current and measures the voltage across the line to be monitored before and after switching off or the current increase and switches off the constant-current sink (4) in the case of too high an impedance, a non-fault-free operation being indicated by means of the signal transmitter in the case of the constant-current sink (4) being switched off.
  2. The active line termination module (1) according to Claim 1, characterized in that the active line termination module (1) exhibits contacts (2) that can be inserted into the detector base of a fire detection line.
  3. The active line termination module (1) according to Claim 1, characterized in that the active line termination module (1) is integrated into the circuitry of a fire detection device (9).
  4. The active line termination module (1) according to Claim 3, characterized in that fire detection device (9) and line termination module (1) can be inserted into the detector base of the fire detection line.
  5. The active line termination module (1) according to one of Claims 1 to 4, characterized in that a voltage controller (6) is connected upstream of the smart electronic component.
  6. The active line termination module (1) according to one of Claims 1 to 4, characterized in that the voltage controller (6) is integrated into the smart electronic component.
  7. The active line termination module (1) according to one of Claims 1 to 6, characterized in that the smart electronic component represents a logic component.
  8. The active line termination module (1) according to one of Claims 1 to 7, characterized in that the signal transmitter is designed as a luminous display, preferably as a light-emitting diode (5).
EP08003270.9A 2008-02-22 2008-02-22 Active line terminator module Active EP2093737B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP08003270.9A EP2093737B1 (en) 2008-02-22 2008-02-22 Active line terminator module
ES08003270.9T ES2442520T3 (en) 2008-02-22 2008-02-22 Active Line Termination Module
PT80032709T PT2093737E (en) 2008-02-22 2008-02-22 Active line terminator module
PL08003270T PL2093737T3 (en) 2008-02-22 2008-02-22 Active line terminator module
US12/378,150 US20090212937A1 (en) 2008-02-22 2009-02-11 Active line termination module
CNA2009100064322A CN101515403A (en) 2008-02-22 2009-02-18 Active line terminator module
RU2009106144/08A RU2009106144A (en) 2008-02-22 2009-02-20 ACTIVE LINEAR END MODULE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08003270.9A EP2093737B1 (en) 2008-02-22 2008-02-22 Active line terminator module

Publications (2)

Publication Number Publication Date
EP2093737A1 EP2093737A1 (en) 2009-08-26
EP2093737B1 true EP2093737B1 (en) 2013-10-23

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EP08003270.9A Active EP2093737B1 (en) 2008-02-22 2008-02-22 Active line terminator module

Country Status (7)

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US (1) US20090212937A1 (en)
EP (1) EP2093737B1 (en)
CN (1) CN101515403A (en)
ES (1) ES2442520T3 (en)
PL (1) PL2093737T3 (en)
PT (1) PT2093737E (en)
RU (1) RU2009106144A (en)

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US11328580B2 (en) 2018-05-29 2022-05-10 Autronica Fire & Security As Testing of a network of hazard warning devices

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US11328580B2 (en) 2018-05-29 2022-05-10 Autronica Fire & Security As Testing of a network of hazard warning devices

Also Published As

Publication number Publication date
CN101515403A (en) 2009-08-26
US20090212937A1 (en) 2009-08-27
EP2093737A1 (en) 2009-08-26
RU2009106144A (en) 2010-08-27
ES2442520T3 (en) 2014-02-12
PL2093737T3 (en) 2014-03-31
PT2093737E (en) 2013-12-05

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