EP0532787B1 - Dispositif pour l'opération de détecteurs de dangers - Google Patents

Dispositif pour l'opération de détecteurs de dangers Download PDF

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Publication number
EP0532787B1
EP0532787B1 EP91115957A EP91115957A EP0532787B1 EP 0532787 B1 EP0532787 B1 EP 0532787B1 EP 91115957 A EP91115957 A EP 91115957A EP 91115957 A EP91115957 A EP 91115957A EP 0532787 B1 EP0532787 B1 EP 0532787B1
Authority
EP
European Patent Office
Prior art keywords
loop
line
case
detector
detectors
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
EP91115957A
Other languages
German (de)
English (en)
Other versions
EP0532787A1 (fr
Inventor
Klaus Kaiser
Otto Walter Dipl.-Ing. Moser
Peer Dr.-Ing. Thilo
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
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP91115957A priority Critical patent/EP0532787B1/fr
Priority to ES91115957T priority patent/ES2080208T3/es
Priority to DE59107087T priority patent/DE59107087D1/de
Priority to AT91115957T priority patent/ATE131648T1/de
Priority to DK91115957.2T priority patent/DK0532787T3/da
Publication of EP0532787A1 publication Critical patent/EP0532787A1/fr
Application granted granted Critical
Publication of EP0532787B1 publication Critical patent/EP0532787B1/fr
Priority to GR950403642T priority patent/GR3018512T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Definitions

  • the invention relates to a device for operating hazard detectors, which are arranged in a loop-shaped double line (detection loop) in a hazard detection system.
  • a large number of detectors are connected to the system center via a loop-shaped double line. Via this double line, the energy supply of the detectors is carried out, as well as the data traffic with the control center.
  • a loop-shaped design it is possible to cut the line or loop at the point of the fault in the event of a line fault (interruption or short circuit), e.g. with a separating element, and to supply and query the separated rest of the detectors from the other side of the detection loop with energy.
  • a device is e.g. known from DE-A-3637681.
  • the hazard detection system can have significantly more hazard detectors per loop.
  • the object of the invention is therefore to avoid the disadvantages described above and to provide an arrangement which allows the loop length to be increased significantly without increasing the copper cross section or reducing the energy requirement of the detectors and without normally delaying the alarming.
  • a separating element approximately in the middle of the signaling loop ensures that the signaling loop is broken in fault-free operation, ie in the normal case, so that the two partial loops thus created are operated as a stub or star line. Only in the event of a fault is the signaling loop closed again, so that the signaling loop can then be operated from both sides, at least up to the point of the fault, which can be located and is appropriately separated in a known manner by means of so-called separating elements.
  • the isolating element is expediently designed in such a way that it can be controlled from the central station from one side as well as from the other side of the message loop.
  • a control device is advantageously provided in the isolating element, which controls, depending on the operating state of the hazard alarm system, at least one switch which is arranged in one of the two wires of the alarm loop.
  • switches can be part of an electromagnetic relay or can be formed by a semiconductor, for example a VMOS transistor.
  • the control device itself is expediently formed by a microcomputer.
  • FIG. 1 A conventional loop arrangement is shown schematically in FIG. 1.
  • the two wires a, b of the message instruction MLH are connected to the central station Z at a first connection unit A1, which lead back to the central station Z as a loop MS and are connected to the second connection unit A2 with the two wires a, b and the signal return line MLR form.
  • the separating elements known per se, which are used to separate disturbed line sections, are not specifically shown here.
  • the total number of detectors connected here is N; detectors M1 to Mm are connected on the MLH message instructions, while detectors Mn to M (m-1) are connected on the MLR return line.
  • N The total number of detectors connected here is N; detectors M1 to Mm are connected on the MLH message instructions, while detectors Mn to M (m-1) are connected on the MLR return line.
  • N The total number of detectors connected here is N; detectors M1 to Mm are connected on the MLH message instructions, while detectors Mn to M (m-1) are connected on the MLR return line.
  • FIG. 2 shows the device according to the invention, which has a separating element TG, which is arranged approximately in the middle of the message line or the message loop MS.
  • a separating element TG which is arranged approximately in the middle of the message line or the message loop MS.
  • FIG. 2 shows schematically in FIG. 2, essentially similar to FIG. 2 of FIG. 1 with the exception of the isolating element TG, which is arranged in the loop MS between the message instruction MLH and the message return line MLR and, in the separated state, enables two sub-loops TS .
  • the same number of detectors M1, 2,... Are arranged on both sub-loops TS, so that line resistances of approximately the same size are also present.
  • FIG. 3 shows a basic illustration of the separating element TG according to the invention. It is connected to the MLH message instructions via terminals a1 and b1 and to the MLR signal return line via terminals a2, b2.
  • the Control device ST recognizes the signals of the message instruction MLH via the control inputs Ma1 / Mb1 and the signals of the signal return line MLR via the control inputs Ma2 / Mb2 and actuates the switches Sa and Sb in the wires depending on the operating state of the two partial loops TS via the control device ST a, b of the message loop MS are arranged.
  • the isolating element TG is activated in such a way that the switches are open and thus the message loop MS is open.
  • the "signal loop" behaves like two stub lines (partial loops TS), each with half the number of detectors and half the line resistance compared to the closed signal loop MS.
  • the normal isolating elements separate the faulty line section as usual. If the fault is such that the isolating element TG should not be disconnected, the isolating element TG is actuated in order to switch the partial loops TS to a signaling loop MS, one of the two partial loops TS generally being extended beyond the isolating element TG while the other partial loop TS is shortened accordingly. For this shortened line section or partial loop TS, normal operation is of course still possible without any restrictions. For the extended line section or partial loop, on the other hand, difficulties are to be expected, which can lead to generally permissible operating restrictions. Here it is first because of the larger number of detectors to be queried lead to a delay in the alarm output.
  • the two switches Sa and Sb can be formed by the contacts of an electromechanical relay, which has the advantage that there are very low contact resistances in the switched-through state and very high insulation resistances in the disconnected state.
  • a bistable version is preferably used for this in order to keep the energy requirement low in both operating states.
  • semiconductors can also be used, VMOS transistors preferably being used.
  • the control device ST is expediently formed by a microcomputer.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Emergency Alarm Devices (AREA)
  • Cookers (AREA)

Claims (8)

  1. Dispositif pour faire fonctionner des indicateurs de danger (M1...Mn), qui sont disposés dans une ligne double en forme de boucle (boucle de signalisation MS) dans une installation de signalisation de danger, caractérisé par le fait qu'approximativement au milieu de la boucle de signalisation (MS) est disposé un élément de séparation (TG), qui, dans le cas d'un fonctionnement non perturbé (cas normal), maintient à l'état ouvert la boucle de signalisation (MS), chaque boucle partielle (TS) fonctionnant en tant que ligne ouverte ou en étoile, et
    que dans le cas d'une perturbation (court-circuit ou interruption de ligne), l'élément de séparation (TG) ferme la boucle de signalisation (MS), la boucle (MS) fonctionnant à partir des deux côtés (A1/A2).
  2. Dispositif suivant la revendication 1, caractérisé par le fait que l'élément de séparation (TG) peut être commandé d'un côté (Ma1/Mb1) ou de l'autre côté (Ma2/Mb2), par le central (Z) de l'installation de signalisation de danger.
  3. Dispositif suivant la revendication 1 ou 2, caractérisé par le fait que l'élément de séparation (TG) comporte un dispositif de commande (ST), qui, en fonction de l'état de fonctionnement (cas normal/cas de perturbation), commande un interrupteur (Sa/Sb), qui est disposé dans l'un des deux conducteurs (a/b) de la boucle de signalisation (MS).
  4. Dispositif suivant la revendication 3, caractérisé par le fait qu'un interrupteur (Sa,Sb) est disposé dans chaque conducteur (a,b).
  5. Dispositif suivant la revendication 3 ou 4, caractérisé par le fait que les interrupteurs (Sa,Sb) font partie d'un relais électromagnétique.
  6. Dispositif suivant la revendication 3 ou 4, caractérisé par le fait que les interrupteurs (Sa,Sb) sont formés d'un transistor VMOS.
  7. Dispositif suivant la revendication 3, caractérisé par le fait que le dispositif de commande (ST) est formé d'un micro-ordinateur.
  8. Dispositif suivant la revendication 1 ou l'une des revendications 2 à 7, caractérisé par le fait que dans le cas d'une perturbation, au moins la boucle partielle prolongée est interrogée plus rarement que dans le cas normal.
EP91115957A 1991-09-19 1991-09-19 Dispositif pour l'opération de détecteurs de dangers Expired - Lifetime EP0532787B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP91115957A EP0532787B1 (fr) 1991-09-19 1991-09-19 Dispositif pour l'opération de détecteurs de dangers
ES91115957T ES2080208T3 (es) 1991-09-19 1991-09-19 Dispositivo para la operacion de alarmas de peligro.
DE59107087T DE59107087D1 (de) 1991-09-19 1991-09-19 Vorrichtung zum Betreiben von Gefahrenmeldern
AT91115957T ATE131648T1 (de) 1991-09-19 1991-09-19 Vorrichtung zum betreiben von gefahrenmeldern
DK91115957.2T DK0532787T3 (da) 1991-09-19 1991-09-19 Anordning til drift af faremeldere
GR950403642T GR3018512T3 (en) 1991-09-19 1995-12-21 Device for operating hazard detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91115957A EP0532787B1 (fr) 1991-09-19 1991-09-19 Dispositif pour l'opération de détecteurs de dangers

Publications (2)

Publication Number Publication Date
EP0532787A1 EP0532787A1 (fr) 1993-03-24
EP0532787B1 true EP0532787B1 (fr) 1995-12-13

Family

ID=8207171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115957A Expired - Lifetime EP0532787B1 (fr) 1991-09-19 1991-09-19 Dispositif pour l'opération de détecteurs de dangers

Country Status (6)

Country Link
EP (1) EP0532787B1 (fr)
AT (1) ATE131648T1 (fr)
DE (1) DE59107087D1 (fr)
DK (1) DK0532787T3 (fr)
ES (1) ES2080208T3 (fr)
GR (1) GR3018512T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326487C2 (de) * 1992-09-16 1995-02-09 Konrad Michael Dipl Ing Weigl Adaptives Filter
DE4322841C2 (de) * 1993-07-08 1996-02-15 Zettler Gmbh Gefahrenmeldeanlage
DE4426466C2 (de) * 1994-07-26 2002-06-20 Siemens Ag Anordnung und Verfahren zum Betreiben von Gefahrenmeldern
DE19800049A1 (de) * 1998-01-02 1999-07-08 Philips Patentverwaltung Anordnung zum Übertragen von Daten und/oder Energie mit Trenneinheit
DE10051329C2 (de) * 2000-10-10 2003-12-11 Job Lizenz Gmbh & Co Kg Gefahrenmeldeanlage
DE102005037047B3 (de) * 2005-08-05 2006-12-28 Novar Gmbh Gebäudeleittechnik- oder Gefahrenmeldeanlage
EP2833333B1 (fr) * 2013-07-31 2018-12-19 Honeywell Life Safety Austria GmbH Système de bus et procédé pour faire fonctionner un système de bus
EP3811348A1 (fr) * 2018-06-21 2021-04-28 Autronica Fire & Security AS Système et procédé de démarrage d'une boucle de détecteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8431883D0 (en) * 1984-12-18 1985-01-30 Gent Ltd Transmission system
DE3637681A1 (de) * 1986-11-05 1988-05-19 Siemens Ag Gefahrenmeldeanlage nach dem pulsmeldesystem

Also Published As

Publication number Publication date
DK0532787T3 (da) 1996-03-25
ATE131648T1 (de) 1995-12-15
ES2080208T3 (es) 1996-02-01
GR3018512T3 (en) 1996-03-31
EP0532787A1 (fr) 1993-03-24
DE59107087D1 (de) 1996-01-25

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