EP0726552B1 - Circuit for transmission of at least two information signals - Google Patents

Circuit for transmission of at least two information signals Download PDF

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Publication number
EP0726552B1
EP0726552B1 EP96250027A EP96250027A EP0726552B1 EP 0726552 B1 EP0726552 B1 EP 0726552B1 EP 96250027 A EP96250027 A EP 96250027A EP 96250027 A EP96250027 A EP 96250027A EP 0726552 B1 EP0726552 B1 EP 0726552B1
Authority
EP
European Patent Office
Prior art keywords
signal
relay
signals
circuit
transmission
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
EP96250027A
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German (de)
French (fr)
Other versions
EP0726552A1 (en
Inventor
Wolfgang Röhl
Ulrich Baumgärtl
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.)
Siemens AG
Siemens Corp
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Siemens AG
Siemens Corp
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Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0726552A1 publication Critical patent/EP0726552A1/en
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Publication of EP0726552B1 publication Critical patent/EP0726552B1/en
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Definitions

  • the invention relates to a circuit arrangement for transmission of at least two message signals from a monitoring device to a distant signal device by means of a signaling line, at the location of the signal device one by pressing a button in self-holding Transferring acknowledgment relay for switching off the signal device is arranged.
  • Circuit arrangements of the type mentioned are, for example used for this purpose in electrical systems Exceeding the limit values of operating variables for transmission. It does not pose any difficulties in itself, one any number of message signals via a corresponding one Number of wire pairs and signal devices with acknowledgment relays transferred to.
  • the invention lies in this connection based on the task of transmitting several notification signals to a common signal device and associated Acknowledgment relay with little effort for the signal line enable.
  • the user of the circuit arrangement has the signal device switched off by pressing the button and enters second signal, the signal device is again activated.
  • This facility enables the notification signal transmitted by means of a normal installation line, whose standardized core colors do not allow any assignment.
  • the one included in the installation lines Protective conductor with yellow / green marking under none Circumstances can be used under current conditions. Now you can go to Compliance with these regulations and without additional laying another line in existing systems Message to be transmitted.
  • DE 25 51 951 B2 describes a control device for a reporting or alarm system in which one is in the notification state alarm loop by pressing a key of the alarm device is separated, which is thereby for the Signaling the response of another signal line is free again.
  • this means that the message signal is at the location of the Signal generator no longer available.
  • through the invention achieves that only when a second Signaling signal occurs, this transmitted to the location of the signal generator and is displayed or reported.
  • the invention is based on the in the figure shown embodiment explained in more detail.
  • a circuit arrangement is shown which for Transmission of two message signals M1 and M2 to a common one Signal device SG is used.
  • the message signal M1 the limit value of an electrical load Be assigned to the consumer, while the message signal M2 is triggered when a limit temperature is exceeded.
  • the message signals M1 and M2 represented as blocks, with the exception of one representation is how the message signals from the underlying Sizes are derived.
  • the signal signals M1 and M2 is each assigned a signal relay R1 or R2, through which one Signal line SL can be applied to a voltage source U.
  • the Signal line SL is shown interrupted to indicate that the signal device SG and the signal relays R1 and R2 remote locations.
  • An acknowledgment relay QR is located at the signaling device SG, whose switch contact in the idle state the signal device SG the signal line SL creates. If an acknowledgment key QT actuated, the QR acknowledgment relay switches to latching and switches off the signal device SG at the same time.
  • Each of the signals M1 and M2 also becomes an interrupt circuit US fed, which makes it possible Signal device SG to be used for both message signals M1 and M2. This happens because when one of the Alarm signals M1 or M2 the interrupt circuit US operated. As a result, when the second occurs Message signals the existing other message signal temporarily switched off by the interruption circuit US and thereby the acknowledgment relay QR in the starting position is deferred. In the embodiment shown this happens because in the common connecting line both signal relays R1 and R2 on from the interruption circuit US controlled transistor T is turned on. Nch the signaling device speaks when the acknowledgment relay is reset SG again and informs the user that a there is another signal. Then he can get away make sure what the message is.
  • the signal line SL only needs two live wires to be shown, therefore, commercial installation lines usable. In particular, existing reporting devices without laying additional lines and Installation of additional signal devices for additional messages be converted.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
  • Communication Control (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)

Abstract

The switching system has a signals from two possible sources (M1,M2) that are used to activate an output loudspeaker (SG). For example, one device can be triggered when the load limit of an electrical unit is exceeded, and the other when a temperature threshold is exceeded. The signals are applied to relays (R1,R2) connecting to a voltage source (U) and a relay (QR) is set to activate the output. Each signal is also coupled to an interrupt circuit (US). In the event that a second alarm signal occurs following generation from the other device then a transistor (T) is switched to reset the output relay followed by reactivation of the alarm.

Description

Die Erfindung betrifft eine Schaltungsanordnung zur Übermittlung von wenigstens zwei Meldesignalen von einem Überwachungsgerät zu einem räumlich entfernten Signalgerät mittels einer Meldeleitung, wobei am Ort des Signalgerätes eine durch Betätigung einer Taste in Selbsthaltung zu überführendes Quittierrelais zur Abschaltung des Signalgerätes angeordnet ist.The invention relates to a circuit arrangement for transmission of at least two message signals from a monitoring device to a distant signal device by means of a signaling line, at the location of the signal device one by pressing a button in self-holding Transferring acknowledgment relay for switching off the signal device is arranged.

Schaltungsanordnungen der genannten Art werden beispielsweise dazu benutzt, in elektrischen Anlagen Meldesignale für die Überschreitung der Grenzwerte von Betriebsgrößen zur übertragen. Dabei bereitet es an sich keine Schwierigkeiten, eine beliebige Anzahl von Meldesignalen über eine entsprechende Anzahl von Leitungspaaren und Signalgeräten mit Quittierrelais zu übertragen. Der Erfindung liegt in diesem Zusammenhang die Aufgabe zugrunde, die Übertragung mehrer Meldesignale zu einem gemeinsamen Signalgerät und zugehörigem Quittierrelais bei geringem Aufwand für die Signalleitung zu ermöglichen.Circuit arrangements of the type mentioned are, for example used for this purpose in electrical systems Exceeding the limit values of operating variables for transmission. It does not pose any difficulties in itself, one any number of message signals via a corresponding one Number of wire pairs and signal devices with acknowledgment relays transferred to. The invention lies in this connection based on the task of transmitting several notification signals to a common signal device and associated Acknowledgment relay with little effort for the signal line enable.

Gemäß der Erfindung ist zur Lösung dieser Aufgabe vorgesehen, daß bei Verwendung einer für alle zu übertragenden Meldesignale gemeinsamen zweiadrigen Signalleitung durch ein auftretendes Meldesignal ein bereits bestehendes Meldesignal durch eine Unterbrechungsschaltung kurzzeitig abgeschaltet wird und hierdurch das Quittierrelais in seine das Signalgerät einschaltende Ausgangsstellung zurückgestellt wird.According to the invention, to achieve this object, that when using a signal to be transmitted for all common two-wire signal line through a occurring signal an existing signal is temporarily switched off by an interruption circuit and this causes the acknowledgment relay to switch on the signaling device Starting position is reset.

Hat daher der Benutzer der Schaltungsanordnung das Signalgerät durch Betätigen der Taste abgeschaltet und tritt ein zweites Meldesignal auf, so wird das Signalgerät erneut aktiviert. Diese Einrichtung ermöglicht es, das Meldesignal mittels einer üblichen Installationsleitung zu übertragen, deren genormte Aderfarben keine beliebige Belegung gestattet. Insbesondere darf der in den Installationsleitungen mitgeführte Schutzleiter mit gelb/grüner Markierung unter keinen Umständen zur Stromführung benutzt werden. Nunmehr kann unter Einhaltung dieser Vorschriften und ohne zusätzliche Verlegung einer neuen Leitung in bestehenden Anlagen eine weitere Meldung übertragen werden.Therefore, the user of the circuit arrangement has the signal device switched off by pressing the button and enters second signal, the signal device is again activated. This facility enables the notification signal transmitted by means of a normal installation line, whose standardized core colors do not allow any assignment. In particular, the one included in the installation lines Protective conductor with yellow / green marking under none Circumstances can be used under current conditions. Now you can go to Compliance with these regulations and without additional laying another line in existing systems Message to be transmitted.

Durch die DE 25 51 951 B2 ist ein Steuergerät für eine Melde- oder Alarmanlage bekanntgeworden, bei der eine im Meldezustand befindliche Meldeschleife durch Drücken einer Taste von der Alarmvorrichtung abgetrennt wird, die dadurch für das Signalisieren des Ansprechens einer weiteren Meldeleitung wieder frei ist. Damit steht aber das Meldesignal am Ort des Signalgebers nicht mehr zu Verfügung. Demgegenüber wird durch die Erfindung erreicht, daß erst dann, wenn ein zweites Meldesignal auftritt, dieses zum Ort des Signalgebers übertragen und zur Anzeige bzw. Meldung gebracht wird.DE 25 51 951 B2 describes a control device for a reporting or alarm system in which one is in the notification state alarm loop by pressing a key of the alarm device is separated, which is thereby for the Signaling the response of another signal line is free again. However, this means that the message signal is at the location of the Signal generator no longer available. In contrast, through the invention achieves that only when a second Signaling signal occurs, this transmitted to the location of the signal generator and is displayed or reported.

Eine Mehrfachausnutzung von Signalleitungen bei einer Einrichtung zur Übertragung und Quittierung von Störmeldungen nach der DE 23 18 879 B2 wird durch eine Matrix aus Dioden, Kontakten und Meldekontakten erreicht. Diese Schaltungsanordnung betrifft jedoch die Übertragung und Quittierung von Störmeldungen zwischen einer Zentrale und mehreren Anlagenverteilern, während die Erfindung die Übertragung der Störmeldung zu einem Signalgeber und die Mehrfachausnutzung der zum Signalgeber führenden Leitung betrifft.Multiple use of signal lines in one facility for the transmission and acknowledgment of fault messages According to DE 23 18 879 B2, a matrix of diodes, Contacts and signaling contacts reached. This circuit arrangement however concerns the transmission and acknowledgment of Fault messages between a control center and several system distributors, while the invention the transmission of the fault message to a signal generator and the multiple use of to the lead leading to the signal generator.

Die Erfindung wird im folgenden anhand des in der Figur gezeigten Ausführungsbeispieles näher erläutert.The invention is based on the in the figure shown embodiment explained in more detail.

In der Figur ist eine Schaltungsanordnung gezeigt, die zur Übertragung von zwei Meldesignalen M1 und M2 zu einem gemeinsamen Signalgerät SG dient. Beispielsweise kann das Meldesignal M1 dem Grenzwert der Belastung eines elektrischen Verbrauchers zugeordnet sein, während das Meldesignal M2 durch das Überschreiten einer Grenztemperatur ausgelöst wird. Zur Vereinfachung sind in der Figur die Meldesignale M1 und M2 als Blöcke dargestellt, wobei von einer Darstellung abgesehen wird, wie die Meldesignale aus den zugrundeliegenden Größen abgeleitet werden. Den Meldesignalen M1 und M2 ist jeweils ein Melderelais R1 bzw. R2 zugeordnet, durch die eine Signalleitung SL an eine Spannungsquelle U anlegbar ist. Die Signalleitung SL ist unterbrochen dargestellt, um anzudeuten, daß sich das Signalgerät SG und die Melderelais R1 und R2 an räumlich entfernten Stellen befinden.In the figure, a circuit arrangement is shown which for Transmission of two message signals M1 and M2 to a common one Signal device SG is used. For example, the message signal M1 the limit value of an electrical load Be assigned to the consumer, while the message signal M2 is triggered when a limit temperature is exceeded. To simplify, the message signals M1 and M2 represented as blocks, with the exception of one representation is how the message signals from the underlying Sizes are derived. The signal signals M1 and M2 is each assigned a signal relay R1 or R2, through which one Signal line SL can be applied to a voltage source U. The Signal line SL is shown interrupted to indicate that the signal device SG and the signal relays R1 and R2 remote locations.

Am Ort Signalgerätes SG befindet sich ein Quittierrelais QR, dessen Umschaltkontakt im Ruhezustand das Signalgerät SG an die Signalleitung SL anlegt. Wird eine Quittiertaste QT betätigt, so geht das Quittierrelais QR in Selbsthaltung über und schaltet gleichzeitig das Signalgerät SG ab.An acknowledgment relay QR is located at the signaling device SG, whose switch contact in the idle state the signal device SG the signal line SL creates. If an acknowledgment key QT actuated, the QR acknowledgment relay switches to latching and switches off the signal device SG at the same time.

Jedes der Meldesignale M1 und M2 wird auch eine Unterbrechungsschaltung US zugeführt, die es ermöglicht, das Signalgerät SG für beide Meldesignale M1 und M2 zu benutzen. Dies geschieht dadurch, daß beim Auftreten eines der Meldesignale M1 oder M2 die Unterbrechungsschaltung US betätigt. Dies hat zur Folge, daß beim Auftreten des zweiten Meldesignals das jeweils schon bestehende andere Meldesignal durch die Unterbrechungsschaltung US kurzzeitig abgeschaltet und hierdurch das Quittierrelais QR in die Ausgangsstellung zurückgestellt wird. In dem gezeigten Ausführungsbeispiel geschieht dies dadurch, daß in die gemeinsame Anschlußleitung beider Melderelais R1 und R2 ein von der Unterbrechungsschaltung US gesteuerter Transistor T eingeschaltet ist. Nch der Rückstellung des Quittierrelais spricht das Signalgerät SG erneut an und bringt dem Benutzer zur Kenntnis, daß ein weiteres Meldesignal vorliegt. Er kann sich dann davon vergewissern, um welche Meldung es sich handelt. Each of the signals M1 and M2 also becomes an interrupt circuit US fed, which makes it possible Signal device SG to be used for both message signals M1 and M2. This happens because when one of the Alarm signals M1 or M2 the interrupt circuit US operated. As a result, when the second occurs Message signals the existing other message signal temporarily switched off by the interruption circuit US and thereby the acknowledgment relay QR in the starting position is deferred. In the embodiment shown this happens because in the common connecting line both signal relays R1 and R2 on from the interruption circuit US controlled transistor T is turned on. Nch the signaling device speaks when the acknowledgment relay is reset SG again and informs the user that a there is another signal. Then he can get away make sure what the message is.

Die Signalleitung SL braucht nur zwei stromführende Adern aufzuweisen, daher sind handelsübliche Installationsleitungen verwendbar. Insbesondere können bereits bestehende Meldeeinrichtungen ohne Verlegung zusätzlicher Leitungen und Installation weiterer Signalgeräte für zusätzliche Meldungen umgerüstet werden.The signal line SL only needs two live wires to be shown, therefore, commercial installation lines usable. In particular, existing reporting devices without laying additional lines and Installation of additional signal devices for additional messages be converted.

Claims (1)

  1. Circuit arrangement for transmitting at least two status signals (M1, M2) from a monitoring device to a spatially separated signalling device (SG) by means of a reporting line (SL), wherein arranged at the location of the signalling device (SG) is an acknowledgement relay (QR) for switching off the signalling device (SG), which acknowledgement relay is to be transferred into the locking state by actuation of a button (QT), characterised in that when a common two-wire signalling line (SL) is used for all status signals (M1, M2) to be transmitted, as a result of a status signal (Ml, M2) which occurs an already existing status signal (M2, M1) is switched off for a short time by an interrupt circuit (US) and as a result of this the acknowledgement relay (QR) is reset into its initial position which switches the signalling device (SG) on.
EP96250027A 1995-02-09 1996-01-31 Circuit for transmission of at least two information signals Expired - Lifetime EP0726552B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505794 1995-02-09
DE19505794A DE19505794C1 (en) 1995-02-09 1995-02-09 Circuit arrangement for the transmission of at least two message signals

Publications (2)

Publication Number Publication Date
EP0726552A1 EP0726552A1 (en) 1996-08-14
EP0726552B1 true EP0726552B1 (en) 2000-06-14

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EP96250027A Expired - Lifetime EP0726552B1 (en) 1995-02-09 1996-01-31 Circuit for transmission of at least two information signals

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AT (1) ATE193952T1 (en)
DE (2) DE19505794C1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2318879B2 (en) * 1973-04-12 1978-03-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for the transmission and acknowledgment of fault messages
GB1514248A (en) * 1974-11-20 1978-06-14 Nittan Co Ltd Alarm control system
DE2962120D1 (en) * 1978-04-17 1982-03-25 Chubb Electronics Ltd Electrical alarm circuits and systems
JPS61229195A (en) * 1985-04-03 1986-10-13 株式会社日本自動車部品総合研究所 Signal transmission system

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DE19505794C1 (en) 1996-08-08
ATE193952T1 (en) 2000-06-15
EP0726552A1 (en) 1996-08-14
DE59605416D1 (en) 2000-07-20

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