EP0532787A1 - 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
EP0532787A1
EP0532787A1 EP91115957A EP91115957A EP0532787A1 EP 0532787 A1 EP0532787 A1 EP 0532787A1 EP 91115957 A EP91115957 A EP 91115957A EP 91115957 A EP91115957 A EP 91115957A EP 0532787 A1 EP0532787 A1 EP 0532787A1
Authority
EP
European Patent Office
Prior art keywords
loop
line
fault
detectors
signalling
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.)
Granted
Application number
EP91115957A
Other languages
German (de)
English (en)
Other versions
EP0532787B1 (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 AT91115957T priority Critical patent/ATE131648T1/de
Priority to ES91115957T priority patent/ES2080208T3/es
Priority to DK91115957.2T priority patent/DK0532787T3/da
Priority to DE59107087T priority patent/DE59107087D1/de
Priority to EP91115957A priority patent/EP0532787B1/fr
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.
  • hazard detection systems especially fire alarm systems
  • a large number of detectors are connected to the control 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 failure 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.
  • the hazard detection system can have significantly more hazard detectors per loop. This means that a much higher total energy requirement is required in such systems with a larger number of detectors. This significantly reduces the maximum permissible resistance of the line compared to a star network. In addition, it takes much longer to query the many detectors, which can lead to delays in alarming.
  • 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 alarm.
  • a separating element approximately in the middle of the signaling loop ensures that the signaling loop is broken in fault-free operation, that is to say in the normal case, so that the two partial loops formed thereby are operated as a stub or star line. Only in the event of a fault, the signaling loop is closed again with the isolating element, so that the signaling loop can then be operated from both sides, at least up to the point of the malfunction, which can be located and is appropriately separated in a known manner by means of so-called separating elements.
  • the separating element is expediently designed in such a way that it can be actuated from the control center both from one side and from the other side of the signaling loop.
  • a control device is advantageously provided in the isolating element which, depending on the operating state of the hazard detection system, controls at least one switch which is arranged in one of the two wires of the detection 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 pipe 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 signaling line or the signaling loop MS.
  • a separating element TG which is arranged approximately in the middle of the signaling line or the signaling 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 disconnected state, enables two partial loops TS .
  • the same number of detectors M1, 2,... Are arranged on both partial 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 such that the switches are open and the signaling loop MS is thus 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 separating 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.
  • this shortened line section or partial loop TS normal operation is of course still possible without any restrictions.
  • 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)
  • Emergency Alarm Devices (AREA)
  • Cookers (AREA)
  • Control Of Electric Motors In General (AREA)
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
AT91115957T ATE131648T1 (de) 1991-09-19 1991-09-19 Vorrichtung zum betreiben von gefahrenmeldern
ES91115957T ES2080208T3 (es) 1991-09-19 1991-09-19 Dispositivo para la operacion de alarmas de peligro.
DK91115957.2T DK0532787T3 (da) 1991-09-19 1991-09-19 Anordning til drift af faremeldere
DE59107087T DE59107087D1 (de) 1991-09-19 1991-09-19 Vorrichtung zum Betreiben von Gefahrenmeldern
EP91115957A EP0532787B1 (fr) 1991-09-19 1991-09-19 Dispositif pour l'opération de détecteurs de dangers
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 true EP0532787A1 (fr) 1993-03-24
EP0532787B1 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)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326487A1 (de) * 1992-09-16 1994-03-17 Konrad Michael Dipl Ing Weigl Adaptives Filter
DE4322841A1 (de) * 1993-07-08 1995-01-26 Zettler Gmbh Gefahrenmeldeanlage
EP0927981A2 (fr) * 1998-01-02 1999-07-07 Philips Patentverwaltung GmbH Dispositif pour la transmission des données et/ou de l'énergie avec unité séparatrice
EP1197936A2 (fr) * 2000-10-10 2002-04-17 Job Lizenz GmbH & Co. KG Système d'alarme
DE4426466C2 (de) * 1994-07-26 2002-06-20 Siemens Ag Anordnung und Verfahren zum Betreiben von Gefahrenmeldern
WO2007017073A2 (fr) * 2005-08-05 2007-02-15 Novar Gmbh Systeme de controle automatique de batiments ou systeme avertisseur de danger
EP2833333A1 (fr) * 2013-07-31 2015-02-04 Honeywell Life Safety Austria GmbH Système de bus et procédé pour faire fonctionner un système de bus
WO2019242863A1 (fr) * 2018-06-21 2019-12-26 Autronica Fire & Security As Système et procédé de démarrage d'une boucle de détecteur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168517A (en) * 1984-12-18 1986-06-18 Gent Ltd Information transmission system
DE3637681A1 (de) * 1986-11-05 1988-05-19 Siemens Ag Gefahrenmeldeanlage nach dem pulsmeldesystem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168517A (en) * 1984-12-18 1986-06-18 Gent Ltd Information transmission system
DE3637681A1 (de) * 1986-11-05 1988-05-19 Siemens Ag Gefahrenmeldeanlage nach dem pulsmeldesystem

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326487A1 (de) * 1992-09-16 1994-03-17 Konrad Michael Dipl Ing Weigl Adaptives Filter
DE4322841A1 (de) * 1993-07-08 1995-01-26 Zettler Gmbh Gefahrenmeldeanlage
DE4426466C2 (de) * 1994-07-26 2002-06-20 Siemens Ag Anordnung und Verfahren zum Betreiben von Gefahrenmeldern
EP0927981A2 (fr) * 1998-01-02 1999-07-07 Philips Patentverwaltung GmbH Dispositif pour la transmission des données et/ou de l'énergie avec unité séparatrice
EP0927981A3 (fr) * 1998-01-02 2000-04-12 Philips Patentverwaltung GmbH Dispositif pour la transmission des données et/ou de l'énergie avec unité séparatrice
KR100580800B1 (ko) * 1998-01-02 2006-09-20 코닌클리케 필립스 일렉트로닉스 엔.브이. 분리유닛을구비한데이터및/또는에너지전송디바이스
EP1197936A3 (fr) * 2000-10-10 2003-07-02 Job Lizenz GmbH & Co. KG Système d'alarme
EP1197936A2 (fr) * 2000-10-10 2002-04-17 Job Lizenz GmbH & Co. KG Système d'alarme
WO2007017073A2 (fr) * 2005-08-05 2007-02-15 Novar Gmbh Systeme de controle automatique de batiments ou systeme avertisseur de danger
WO2007017073A3 (fr) * 2005-08-05 2007-04-19 Novar Gmbh Systeme de controle automatique de batiments ou systeme avertisseur de danger
US7647439B2 (en) 2005-08-05 2010-01-12 Novar Gmbh Electronic Warning System
EP2833333A1 (fr) * 2013-07-31 2015-02-04 Honeywell Life Safety Austria GmbH Système de bus et procédé pour faire fonctionner un système de bus
WO2019242863A1 (fr) * 2018-06-21 2019-12-26 Autronica Fire & Security As Système et procédé de démarrage d'une boucle de détecteur
US11367339B2 (en) 2018-06-21 2022-06-21 Autronica Fire & Security As System and method for startup of a detector loop

Also Published As

Publication number Publication date
GR3018512T3 (en) 1996-03-31
ATE131648T1 (de) 1995-12-15
EP0532787B1 (fr) 1995-12-13
DE59107087D1 (de) 1996-01-25
ES2080208T3 (es) 1996-02-01
DK0532787T3 (da) 1996-03-25

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