EP1363261B1 - Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode - Google Patents

Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode Download PDF

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Publication number
EP1363261B1
EP1363261B1 EP02011042A EP02011042A EP1363261B1 EP 1363261 B1 EP1363261 B1 EP 1363261B1 EP 02011042 A EP02011042 A EP 02011042A EP 02011042 A EP02011042 A EP 02011042A EP 1363261 B1 EP1363261 B1 EP 1363261B1
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EP
European Patent Office
Prior art keywords
short circuit
terminal
detector
line
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
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EP02011042A
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German (de)
English (en)
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EP1363261A1 (fr
Inventor
Walter Waibel
Urs Wahlen
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Securiton AG
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Securiton AG
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Publication date
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Priority to EP02011042A priority Critical patent/EP1363261B1/fr
Priority to DE50201158T priority patent/DE50201158D1/de
Priority to AT02011042T priority patent/ATE278228T1/de
Publication of EP1363261A1 publication Critical patent/EP1363261A1/fr
Application granted granted Critical
Publication of EP1363261B1 publication Critical patent/EP1363261B1/fr
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    • 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 is concerned with a method of operation a hazard detection system.
  • the invention also relates to also a hazard alarm system, especially for implementation this procedure.
  • a hazard alarm system precisely identify all detectors operated on a zone can, is described in EP A 0 093 872.
  • the one described there System has a ring-shaped detection line that is connected to a control center via two terminals.
  • the on detectors operated by the detection line have a sensor, a transducer, a control unit and a switching element. Switching element serves the connection between the control center and establish the next following detector or open separate.
  • a major disadvantage of parallel operation is that a Short-circuit the line of the entire detector line can.
  • every detector should System described above on the input and output side Short circuit detector included. When a short circuit is detected should now the switches in the detectors, the short circuit on next are to be opened. This will cause the short circuit isolated and the supply voltage on all detectors in the zone can be maintained. Now all detectors can starting from the first terminal of the headquarters to Short circuit are supplied and queried. All other detectors can be supplied and queried via the second terminal at the headquarters become.
  • Another method to solve the short circuit problem is in doing without parallel operation, and is in the DE 43 22 841 C2 described.
  • For each polling cycle first all switching element opened. After querying the first The detector's switching element is closed so that the next detector can be reached. If the polling cycle is from the first terminal is finished, a new cycle begins, starting from the second terminal. By constantly changing the Query direction between the query cycles is guaranteed that all detectors are queried even in the event of a line fault can.
  • the method described last has the disadvantages in itself that the query cycles through the always necessary Switching on the detectors and the associated waiting time a lot take longer than in parallel operation.
  • everyone must Detectors have an energy storage from which the detector is supplied as long as it is not connected to the control center. The energy storage must have enough energy for the duration Provide at least one complete query cycle and be reloaded before each query. It is also with this Procedure for a detector not possible if there is no of queries caused by a malfunction in the control center, an emergency alarm to be submitted because there is no connection to the control center.
  • the invention is therefore based in particular on the object a method for operating a hazard detection system and a To create a hazard alarm system which, if a line fault occurs, like break or short circuit, quickly again are operational and all detector queries and the location of the Can specify errors without the disadvantages mentioned above exhibit.
  • the present subject matter has at least a ring-shaped detection line with at least two wires, which are connected to a control center via two similar terminals is, the detection line in different operating states is operated.
  • the first time it is started the detection line is in a first operating state, the serves to start and in which the detectors receive their first addresses and be configured.
  • the head office notes this all assigned first addresses and compare them with one previously saved profile. If the start-up ran without errors the zone changes to a second operating mode. In the second operating mode, the detectors become parallel to operated each other on the detection line and cyclically from the first Terminal queried off. Every detector is included in the query addressed to his previously assigned first address, on what the detector responds with its alarm or measurement data.
  • addressing is also a query in any order conceivable. If now during operation in the second mode an error occurs, is in a third mode branched. In the third operating mode, all detectors become new started and the fault location isolated. After that, in a fourth operating mode changed, in which all detectors to the point of failure from the first terminal, the detectors behind the fault location supplied and queried from the second terminal and the error is displayed.
  • All detectors of the hazard alarm system are equipped with sensors to detect dangers such as fire, Gas, burglary or other dangers, an evaluation and control circuit, a memory and at least one switching element to connect the next following detector to the control center.
  • the terminals of the alarm system according to the invention have via devices for monitoring the applied voltage and to detect short circuits between the different ones Cores of the detection line.
  • the first operating mode all detectors are initially dead; a voltage-free detector always has an open one Switching element and the first address zero. Then on the first Terminal applied the supply voltage of the detection line. To the application of the supply voltage is initially only that Terminal next detector powered and a time t1 waited until the first detector has initialized and all Energy storage, which are necessary for regular measuring operation, are loaded. After the time t1 is over, the first one Detector addressed with the first address zero, its type read out and with a new first that corresponds to its location Provide address. Type and the first address of the detector stored in the control center for further use. Subsequently the switching element of the first detector is closed, whereby the second detector is supplied with voltage.
  • the second detector can be activated with the first address zero. With the second and each further detector is operated in the same way as with the first Detector until the last detector in the zone with its new first address. If the switching element in the last terminal is closed, the second terminal recognizes the voltage now present that the ring is closed and all connected detectors via the saved first Addresses can be addressed. Then all the detectors found with a zone profile previously saved in the control center compared and each assigned to a detector from the notification line profile. Each detector then receives a profile that matches the profile second address that is in a non-volatile memory is written. If the start-up is error-free now switched to the second operating mode.
  • all detectors are on the detection line supplied from the first terminal and queried cyclically; each detector with its, in the first operating mode assigned first address, addressed and a corresponding Command in the form of a digital data word, for example a Query command, transmitted. The corresponding detector then sends its alarm data, which are further processed in the control center become. If during operation in the second mode a line fault occurs, the system switches to the third operating mode, in which the error is isolated and the accessibility all detectors are restored.
  • the basic procedure is that first disconnect the supply voltage of the detection line becomes. This opens the switching elements in all detectors and the first addresses fall back to zero. After a wait t2 becomes the first detector from the first terminal Power supplied and then after the waiting time t1 over the first Address addressed zero. The type and the second address of the first detector are read out and with the data contained in the first operating mode were compared. Subsequently the second address will again correspond to the location of the detector set and the switching element closed. With every other Detector will proceed in the same way until the location of the fault or at an error that only occurred for a short time, the second terminal is achieved. In the event of a line break, the location of the Error recognized that the next detector is not within answers a given time.
  • the switching element that was closed last has been opened again and the starting process is started by the second Terminal continued to the other side of the error.
  • the detectors are restarted here as well as from first terminal, the switching element of the detector, the the location of the fault is not closed, because from the known data it is clear that no further detector is available.
  • n detectors on a detection line it is possible for n detectors on a detection line to be ready for operation again in approximately nxt 1 + t 2 . This corresponds approximately to the time required for a query cycle according to the method described in DE 43 22 841 C2.
  • the voltage monitoring device in the second terminal recognized by the fact that after the interruption occurred there is no more voltage on the second terminal. After this an interruption is recognized, is described after the above Procedure restarted the detection line, which means only one short-term interruption the detection line even error-free restarted and returned to the second operating mode can be. If the interruption still exists, from both terminals only started up to the point of failure and switched to the fourth operating mode.
  • the detectors closest to the terminals with the first address zero are addressed, detector type and second addresses are read out, compared with the data stored in the control center, the first addresses corresponding to the location of the detectors are set and the switching elements are closed , As soon as the short circuit is reached from a terminal, the location of the short circuit is known from the address of the detector reached immediately beforehand from the respective terminal and the comparison with the target and actual data from the control center.
  • the supply voltage from both terminals is switched off again and after a further waiting time t2, a second restart is started from both terminals, which ends immediately before the short circuit. This reduces the maximum time required to find the short circuit by at least half.
  • the total time until all detectors can be addressed again and changed to the fourth operating mode results in a time of nxt 1 + 2t 2 , which is only slightly longer than the time required for an interruption.
  • a further reduction in the repair time can be achieved if the supply voltages in the two terminals differ are independent. Then the short circuit only works the terminal closest to the short circuit. Since the The location of the short circuit is known as soon as the short circuit of one of the two terminals can be reached from the other Terminal off until the short circuit continues. The switching element in the detector, which is immediately in front the short circuit remains closed. In the meantime, is from the terminal closest to the short circuit has started with the second repair start, also ends just before the short circuit.
  • the fire alarm system 1 shows a hazard alarm system 1 according to the invention, which are described below as a fire alarm system becomes. Of course, it can also be done by an intruder alarm system or mixed system for fire, burglary and other dangers are formed.
  • the fire alarm system 1 exists from a control center 2 and a reporting line 9 with at least two Wires 7 and a variety of hazard detectors 8.
  • the control panel contains a memory for a target table 3 and an actual table 4 and at least one pair of terminals consisting of two Similar terminals A and B 5/6. Terminal A 5 is with connected to one end of the reporting line and Terminal B 6 with the other end.
  • Terminals A and B 5/6 are used for supply and communication with the detectors 8 and Devices for monitoring the voltage, not shown on the detection line 9 and for the detection of short circuits between the wires 7.
  • the wires 7 provide the connection between terminals 5/6 and detectors 8, which are used as smoke, temperature, Gas, multi-criteria or intrusion detectors trained are.
  • the detectors 8 contain a first memory 10 for one first address corresponding to the location of the detector, a second non-volatile memory 13 for a second the installation plan appropriate address and a switching element with which at least one of the wires 7 can be interrupted.
  • FIG. 2 shows a diagram showing four different operating states or operating modes are shown by the hazard alarm system can take. From the first state “start”, can in the states “normal” and “AB operation” are changed from second state “normal” and fourth state “AB operation” can in the third state “repair” and from “repair” after "AB operation” and "normal”.
  • the detectors 8 In the "start" operating state, all switching elements 11 in the detectors 8 are initially open, the first address is zero, the second address is indefinite and the supply voltage is zero. Then the supply at Terminal A 5 is switched on and the first detector closest to Terminal A 5 is supplied with voltage. After a waiting time of approx. 2 s, its energy stores are filled and the detector 8 can be addressed zero via the first address. The detector type is then read out and the first memory 10 is assigned, for example, the address one corresponding to the location of the detector 8. The first address and the detector type are stored in the actual table of the control center and the switching element 11 is closed. Again after 1.5 s, the next detector 8 can be addressed with the address zero.
  • each other detector 8 as with the first detector 8, the first addresses being assigned in ascending order.
  • the switching element 11 in the last detector 8 on the detection line 9 is closed, the terminal B 6 recognizes from the voltage now present that the detection line 9 is completely switched on.
  • the second addresses are generated and the detectors 8 are written into the second memories 13.
  • the "Normal" status changed. However, if there are line faults, the reporting line 9 will be from Terminal A 5 and Terminal B 6 started only up to the error, whereby from Terminal B from the first addresses with the largest possible Allocate address starting counting down and the Switching elements 11 of the detectors 8, which are adjacent to the fault are not closed. Then the state is "AB operation" changed.
  • Terminal B 6 As previously described for Terminal A 5, the switching element 11 of the detector 8 which is located in front of the terminal B 6 Interruption is no longer closed because of the place of the interruption already from the comparison of those in the headquarters 2 stored data emerges.
  • a short circuit 40 on the detection line 9 is immediate after its occurrence by the short-circuit detection means in terminals A and B 5/6 and the power supply immediately interrupted. This means that after one Waiting time of 10 s all switching element 11 in the detectors 8 opened, and the first addresses dropped back to zero. After that is supplied from terminal A 5 from the first detector 8. Right away Terminal B 6 then turns it into the Terminal next, detector 8 supplied. Both detectors 8 are each after a waiting time of 1.5 s from the corresponding Terminal 5/6 addressed with the first address zero, and the second Read addresses. These are with the data from the target table and the actual data previously obtained in the "Start" state compared. Then the first addresses are the location of the Assign detector 8 accordingly.
  • the detector 8 at Terminal A 5 receives first address one and the detector at Terminal B 6 receives the first address six. You can also see how easy is the largest possible first for the detector at Terminal B 6 Assign address. Then the switching elements 11 of the detectors 8 closed, being between the closing of the switching element 11 is waited long enough until an existing one Short 40 was discovered. After closing the switching element 11 in detector 8 with the first address six Short circuit 40 detected and the detection line de-energized. Because now again all switching elements 11 are open and all first Addresses are zero, with the start of zone 9 again as previously described from both terminals A and B 5/6 started from. But now the switching elements remain Detectors 8, which are adjacent to the short circuit 40, are closed. The location of the short circuit 40 is determined by those previously carried out Comparing the addresses of the most recently reached detectors 8, with the target and actual data stored in the control center, known.
  • a short circuit Due to the slightly delayed start from both sides the reporting line and the comparison with those in the headquarters stored data, a short circuit can be localized much earlier and be isolated as with a simple change of querying terminals after the first short circuit is reached. In addition, without the comparison with the data of the headquarters a third start is necessary. Because you know through that Reaching the short circuit from Terminal B 6 only the distance to Terminal B 6. You get the distance to Terminal A 5 only by reaching the short circuit 40 again this becomes effective again and a third start is required makes. Accordingly, the invention brings a great time advantage when a detection line is made available again after a Short circuit 40 and thus represents an enormous gain in safety represents.
  • the invention is a method of operation a hazard detection system with one operated at two terminals Annular detection line. In the event of a short circuit on the detection line it succeeds with a slightly delayed start and re-address the detector from both terminals and the Comparison of a fixed address with that previously stored in a control center Data, all detectors in the zone quickly again to have available.

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

Claims (6)

  1. Procédé pour le fonctionnement d'un système avertisseur de danger (1), avec une centrale (2) qui présente au moins deux terminaux (5/6) pour au moins une ligne de signalisation en boucle (9), avec une pluralité d'avertisseurs de danger (8) fonctionnant en parallèle sur une ligne de signalisation (9) après une phase de démarrage et contactables par une première adresse, pouvant être alimentés et interrogés à partir des deux côtés de la ligne en boucle (9), procédé selon lequel on redémarre la ligne de signalisation en cas de défaut de ligne ou d'un autre défaut (30/40) et, après le redémarrage, on repasse en fonctionnement normal ou on passe dans un fonctionnement à deux terminaux dans lequel les avertisseurs sont alimentés et interrogés chaque fois à partir d'un terminal (5/6) jusqu'au point de défaut (30/40), caractérisé par le fait qu'au premier démarrage après la détection d'un défaut de ligne (30/40), lorsque le défaut de ligne (30/40) est atteint, l'emplacement du défaut de ligne (30/40) est identifié par la première et la deuxième adresse du dernier avertisseur (8) atteint et la comparaison avec des données nominales ou réelles (3/4) de la ligne de signalisation préalablement enregistrées dans la centrale (2).
  2. Procédé selon la revendication 1, caractérisé par le fait que l'on isole le défaut de ligne (30/40) en ne fermant pas les commutateurs (11) des avertisseurs (8) situés avant le défaut de ligne (30/40) et en alimentant et interrogeant les avertisseurs (8) à partir du premier ou du deuxième terminal (5/6) jusqu'au défaut de ligne.
  3. Procédé selon la revendication 1, caractérisé par le fait que lorsque le défaut est un court-circuit de ligne (40), le redémarrage après la détection du court-circuit est effectué immédiatement à partir des deux terminaux (5/6).
  4. Procédé selon la revendication 3, caractérisé par le fait que lors du premier démarrage après la détection du court-circuit, lorsque le court-circuit (40) redevient actif, l'emplacement du court-circuit (40) est identifié par la première adresse du dernier avertisseur (8) atteint et comparaison avec des données nominales ou réelles (3/4) de la ligne de signalisation préalablement enregistrées.
  5. Procédé selon la revendication 4, caractérisé par le fait que, lors du deuxième démarrage, on isole le court-circuit (40) en ne fermant pas les commutateurs (11) des avertisseurs (8) situés avant le court-circuit (40) et en alimentant et interrogeant les avertisseurs (8) à partir du premier ou du deuxième terminal (5/6) jusqu'au court-circuit (40).
  6. Système avertisseur de danger (1) pour la réalisation du procédé selon l'une des revendications ci-dessus, lequel système avertisseur de danger (1) est conçu selon au moins l'une des revendications 1 à 5.
EP02011042A 2002-05-17 2002-05-17 Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode Expired - Lifetime EP1363261B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02011042A EP1363261B1 (fr) 2002-05-17 2002-05-17 Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode
DE50201158T DE50201158D1 (de) 2002-05-17 2002-05-17 Verfahren zum Betrieb einer Gefahrenmeldeanlage sowie Gefahrenmeldeanlage, insbesondere zur Durchführung des Verfahrens
AT02011042T ATE278228T1 (de) 2002-05-17 2002-05-17 Verfahren zum betrieb einer gefahrenmeldeanlage sowie gefahrenmeldeanlage, insbesondere zur durchführung des verfahrens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02011042A EP1363261B1 (fr) 2002-05-17 2002-05-17 Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode

Publications (2)

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EP1363261A1 EP1363261A1 (fr) 2003-11-19
EP1363261B1 true EP1363261B1 (fr) 2004-09-29

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EP02011042A Expired - Lifetime EP1363261B1 (fr) 2002-05-17 2002-05-17 Méthode d'opération d'un système d'alarme, et système pour l'implementation de ladite méthode

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AT (1) ATE278228T1 (fr)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2656684C2 (ru) * 2013-10-25 2018-06-06 Амрона Аг Система шин и способ эксплуатации такой системы шин
US11367339B2 (en) 2018-06-21 2022-06-21 Autronica Fire & Security As System and method for startup of a detector loop

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7533517B2 (en) * 2005-04-14 2009-05-19 Snecma Exhaust nozzle for an engine of a flying craft
US7535687B2 (en) 2006-04-13 2009-05-19 Ge Security, Inc. Alarm system sensor topology apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664637A5 (de) * 1982-04-28 1988-03-15 Cerberus Ag Verfahren zur uebertragung von messwerten in einem ueberwachungssystem.
DE4322841C2 (de) * 1993-07-08 1996-02-15 Zettler Gmbh Gefahrenmeldeanlage
DE10051329C2 (de) * 2000-10-10 2003-12-11 Job Lizenz Gmbh & Co Kg Gefahrenmeldeanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2656684C2 (ru) * 2013-10-25 2018-06-06 Амрона Аг Система шин и способ эксплуатации такой системы шин
US11367339B2 (en) 2018-06-21 2022-06-21 Autronica Fire & Security As System and method for startup of a detector loop

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Publication number Publication date
EP1363261A1 (fr) 2003-11-19
DE50201158D1 (de) 2004-11-04
ATE278228T1 (de) 2004-10-15

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