EP0503122B1 - Arrangement pour commuter des lignes primaires en cas de perturbations - Google Patents

Arrangement pour commuter des lignes primaires en cas de perturbations Download PDF

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Publication number
EP0503122B1
EP0503122B1 EP91103978A EP91103978A EP0503122B1 EP 0503122 B1 EP0503122 B1 EP 0503122B1 EP 91103978 A EP91103978 A EP 91103978A EP 91103978 A EP91103978 A EP 91103978A EP 0503122 B1 EP0503122 B1 EP 0503122B1
Authority
EP
European Patent Office
Prior art keywords
line
mpl1
changeover
elements
switching
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
EP91103978A
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German (de)
English (en)
Other versions
EP0503122A1 (fr
Inventor
Otto Walter Dipl.-Ing. Moser
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
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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 AT91103978T priority Critical patent/ATE131647T1/de
Priority to DE59107080T priority patent/DE59107080D1/de
Priority to EP91103978A priority patent/EP0503122B1/fr
Priority to ES91103978T priority patent/ES2080174T3/es
Publication of EP0503122A1 publication Critical patent/EP0503122A1/fr
Application granted granted Critical
Publication of EP0503122B1 publication Critical patent/EP0503122B1/fr
Priority to GR950403641T priority patent/GR3018511T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • G08B25/04—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 using a single signalling line, e.g. in a closed loop
    • 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
    • G08B29/16—Security signalling or alarm systems, e.g. redundant systems

Definitions

  • the invention relates to an arrangement for switching primary reporting lines in the event of faults in a hazard detection system, which operates according to the chain synchronization principle.
  • DE-A-25 33 382 discloses a method and a device for transmitting measured values in a fire alarm system.
  • danger detectors that operate according to the chain synchronization principle, e.g. Fire or intrusion detectors of pulse detection technology, described and which give their measured values in succession in a known manner and at the same time switch the line to the next detector.
  • the detectors are connected via a two-wire stub, i.e. a signaling primary line with a-b wire, connected to the control center and are queried one after the other from the control center.
  • the switching device provided for this in the respective detector thus only works in one direction.
  • a disadvantage of this chain-shaped arrangement is that when an element is removed or fails, e.g. because the switching device is defective, or the chain is interrupted at the fault location in the event of a line break, which leads to a fault. This means that hazard detectors or, more generally speaking, elements that are connected to the primary reporting line from the control center after the fault location are no longer operational.
  • the elements of a stub line are operated via a loop, ie the elements are connected to the control center via the signaling primary line, as in stub line operation, after In the last element, however, the primary signal line is returned to the control center and connected there.
  • a loop formation of a hazard alarm system is known from ER-PA 86116172.
  • all elements can continue to be operated in the event of an interruption, for example due to a line break or a defective switching device in the element.
  • the elements are queried until the error from the beginning of the primary reporting line and then the remaining detectors, which are arranged after the error, are queried from the control center from the end of the primary reporting line.
  • this requires that the elements and the associated switching devices are designed so that they can be operated in both directions, ie that they can be queried both from the beginning and from the end of the primary signal line.
  • additional measuring devices are generally provided in the individual elements, which, in the event of a fault, ensure that the element lying before the short circuit no longer switches on, since otherwise the entire line voltage would collapse and further operation can no longer be ensured.
  • a current measuring device does not have to be provided in every element, it can also be accommodated in special separating elements or in the control center, the separating element or from the control center switching off the corresponding separating element via a control command (DE-A-36 37 681 ).
  • Hazard detectors or elements that work according to the chain synchronization principle have the advantage over other parallel reporting systems that they already have a switching device that can be used in the event of a short circuit to unlock the fault location.
  • the loop Since the loop systems described are sensitive to electromagnetic interference or coupling, the loop is usually only operated from one side in the undisturbed operating state, i.e. all elements are queried from the beginning of the line.
  • the return line is generally only used in the event of a fault or for test purposes.
  • the line With loop operation it is also possible for the line to alternate, e.g. every second polling cycle, from the front or from the rear, or the polling direction is reversed at certain time intervals, so that the reverse direction can also be continuously checked for functionality.
  • an error for example an interruption or a short circuit
  • each branch line i.e. first reporting primary line
  • a plurality of switching elements arranged at selected locations between two elements.
  • Each switchover element is provided with control electronics, a switching device and a switchover device and connected in a chain to the danger control center via a second signaling primary line.
  • control electronics, the switching device and the switching device of the switching element which is arranged after the interruption, switch the incoming second primary signal line to the outgoing stub line.
  • switching elements has the advantage that none for the individual regular elements additional circuitry is required, and that one or more switching elements can be arranged in a specific, meaningfully placed manner in an existing alarm system, but these must be connected to an additional primary line for a zone.
  • the outgoing stub line can advantageously be switched off and the incoming second primary signal line can be switched to the outgoing stub line with the switching element after the short circuit.
  • This has the advantage that the elements can be queried from the control center up to the switching element before the short circuit, and that the further elements lying after the second switching element can be located via the second signaling primary line via the second switching element which is arranged after the short circuit first primary line can still be queried. Only the line section in which the short circuit occurred, which is located between the two switching elements, can no longer be operated by the control center.
  • the two-wire MPL primary line with wires a and b is connected to the central station Z.
  • the individual elements E1 to En are arranged on the primary signal line, which connect the next detector or the next element in series in a chain fashion with a switching device S1.
  • FIG. 3 a hazard alarm system for loop operation is indicated.
  • the alarm primary line MPL is connected to the control center Z in a loop, ie the beginning of the alarm line
  • MPL-A is connected to the central unit with the individual elements E1 to En.
  • the last detector or the last element En is connected to the control center again via the two-wire primary signal line, which is shown in FIG. 3 by the MPL-E primary signal line end and corresponding to the two wires a ⁇ and b '.
  • FIG. 4 the fault for the loop operation according to FIG. 3 is also shown using the example of a line break UB.
  • a line break UB which can also be caused by a defective switching device in one element.
  • all elements can continue to be operated. If the error lies, for example, between the elements E4 and E5, as shown in FIG. 4, the elements E1 to E4 are queried from the beginning of the line MPL-A and the elements En to E5 from the end of the line MPL-E.
  • the prerequisite for this is that the elements E1 to En and the associated switching devices S2 are designed so that they can be operated in both directions, ie that they can be queried both from the beginning and from the end of the primary signal line, which means that they must be designed bidirectionally.
  • Switching devices S2 of this type must therefore carry or block current in both directions, which can be achieved, for example, by means of two SIPMOS transistors with correspondingly complex control electronics.
  • the elements E1 to En are connected in a known manner to a stub line, ie first primary signal line MPL1. They have simple switching devices S1 that only work in one direction, ie switch from the beginning of the line to the end of the line. They are identical to that of branch line operation forth from the elements known from pulse signaling technology and can consist, for example, of only one SIPMOS transistor. All elements are always queried from the same side, namely from the beginning of the primary reporting line.
  • a switching element UE1 and UE2 is inserted between the elements E3 and E4 and between the elements E (n-2) and E (n-1). As shown in FIGS. 5 to 7, these switchover elements are additionally connected to the center Z via a second primary signal line MPL2. They are supplied, monitored and controlled via this second signaling primary line MPL2, i.e. also operated in a chain-synchronous manner.
  • the switching element UE essentially consists of control electronics STE with a switching device S1, a switching device US with three permanently coupled contact levels US-1 to US-3, each with three switching positions 1 to 3, and terminals for the incoming and outgoing signaling primary lines MPL1 and MPL2.
  • the switchover device US At rest, i.e. During regular operation of the hazard alarm system, the switchover device US is in position 1. This means that the first primary signal line MPL1 (stub line) is connected through.
  • This idle state is static, that is to say regardless of whether the switching element UE is connected to a second signaling primary line MPL2 or not, or even if the second signaling primary line MPL2 should not be ready for operation due to an error.
  • the switching element UE is supplied, operated and controlled exclusively via the second signaling primary line MPL2.
  • the control electronics STE is connected via the incoming a and b core of the second signaling primary line MPL2 provided.
  • This is constructed in exactly the same way as in the usual elements of the alarm system, which works according to the chain synchronization principle. This means that it delivers a measured value which signals the proper functioning of the switching element and which can also include, for example, the position of the switching device US. Then, in a known manner, it switches the second primary signal line MPL2 on to the next switching element via the switching device S1. In addition, it can receive control commands (for example DE-PS 25 33 354) from the control center in a known manner and operate the switching device US as a function thereof.
  • the switchover device US is expediently constructed using transistors, for example self-conducting or normally-off MOS transistors.
  • the respective switchover device US is switched through in the individual switchover elements UE in undisturbed operation.
  • the switchover device US is therefore in its static idle position in position 1. All elements E1 to En can therefore be queried via the first signaling primary line MPL1 like normal pulse detectors.
  • the switching elements UE do not occupy any additional addresses on the first signaling primary line MPL1.
  • FIG. 6 shows an example of a line break UB, a fault after element E5.
  • the elements E1 to E5 are properly recognized and queried by the control center Z via the first primary signal line MPL1.
  • Element E6 can no longer be recognized. Since the system configuration of the control center is known, it also knows the switching element following the fault location UB, here in the exemplary embodiment UE2. With a control command via the second primary signal line MPL2, this switching element UE2 is now caused to switch the switching device US to position 3. As a result, the incoming second message primary line MPL2 is switched to the outgoing first message primary line MPL1 in the switching element UE2.
  • the E6 to E (n-2) identified by a thicker border in the drawing after the fault location UB up to the next switching element UE2 are deactivated by the line break UB.
  • FIG. 7 the sequence in the event of a line or element short-circuit K is shown using a further example.
  • the fault location K is here after element E4.
  • a current measuring device is of course also necessary here, which can detect a line current that is too large or a resistance that is too small between the a and b wires.
  • This current measuring device is usually implemented in the control center.
  • the elements E1 to E4 are queried in a known manner via the first primary signaling line.
  • the short-circuit point K is switched on.
  • An increased line current flows via the first signaling primary line MPL1, which is recognized by the current measuring device in the control center.
  • the control center Z controls the previous switching element, closest to the fault location K, via the second reporting primary line MPL2, in the exemplary embodiment UE1, in such a way that the faulty line section is completely activated, i.e. has no connection to the first reporting primary line or to the second reporting primary line .
  • This is achieved in position 2 of the switching device US of the switching element UE1.
  • the fault location is thus switched off, the further operation of the Elements up to this switching element UE1, ie the elements E1 to E3 are no longer at risk.
  • the control center Z switches the switching element UE2 following the fault location K to the second reporting primary line MPL2 via the second reporting primary line (position 3 of the switching device US).
  • the remaining elements, here in the exemplary embodiment E (n-1) to En, are now queried via the second primary signaling line.
  • the elements between the two switching elements UE1 and UE2, that is, elements E4 to E (n-2), are no longer ready for operation in this case.
  • the number of elements that are at maximum failure at a simple line or element fault can be limited to the number of elements installed between two switching elements.
  • the hazard alarm system can largely continue to be operated even in the event of a fault.
  • the normal operation of the elements E1 to En via the first signaling primary line MPL1 is not affected, since as a rule all of the switching devices US are in their static idle position, i.e. Position 1, remain.
  • the arrangement according to the invention thus has the advantage that in a hazard detection system that operates on the principle of chain synchronization, for example pulse detection technology, the regular detector elements used there, for example smoke detectors, push-button detectors, and external ones Detector displays or the like, which are generally also installed in large quantities, do not require any special additional effort.
  • the regular detector elements used there for example smoke detectors, push-button detectors, and external ones Detector displays or the like, which are generally also installed in large quantities, do not require any special additional effort.
  • all of the existing elements for example all detectors and displays of pulse signaling technology, can still be operated as before.
  • measures to reduce the number of elements affected by the failure in the event of a line or element fault are desired or required, this can be done with the arrangement according to the invention by inserting the switching elements described above without changing or increasing the cost of existing elements (for example detectors).
  • the maximum number of elements that can no longer be operated in the event of an error can be determined by sensibly configuring switchover elements. It

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Alarm Systems (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Claims (5)

  1. Dispositif pour commuter des lignes primaires de signalisation (MPL) en cas de perturbations dans une installation de signalisation de danger, qui fonctionne selon le principe de la synchronisation en chaîne,
    caractérisé par les particularités suivantes :
    a) en plus des éléments (UE1 à UEn) d'une ligne de dérivation, c'est-à-dire d'une première ligne primaire de signalisation (MPL), un ou plusieurs éléments de commutation (UE1, UE2, ...) sont disposés, en des emplacements pouvant être prescrits, dans la ligne de dérivation (MPL1),
    b) chaque élément de commutation (UE1) d'une ligne de dérivation (MPL) est munie d'une unité de commande électronique (STE) et d'un dispositif de commutation (US) et est raccordé, en chaîne, par l'intermédiaire d'une seconde ligne primaire de signalisation (MPL2), au central de signalisation de danger (Z), l'unité électronique de commande étant munie d'un dispositif d'interconnexion et commandant le dispositif de commutation,
    c) dans le cas d'un fonctionnement régulier, dans chaque élément de transmission (UE1,UE2,...), la ligne de dérivation (MPL1) est interconnectée au moyen du dispositif de commutation (US ou US-1, US-2),
    d) si l'on détecte dans le central une perturbation (Z) due à une interruption (UB) dans la ligne de dérivation (MPL1), la seconde ligne primaire de signalisation (MPL2), qui arrive à l'élément de commutation, est branchée à partir du central par l'intermédiaire de la seconde ligne primaire de signalisation à la ligne de dérivation (MPL1), qui part de l'élément de commutation, au moyen de l'unité électronique de commande (STE) et du dispositif d'interconnexion (S1) ainsi que du dispositif de commutation (US ou US-1, US-2, US-3) de l'élément de commutation (UE2), qui est en aval de l'interruption (UB) dans la ligne de dérivation (MPL1).
  2. Dispositif suivant la revendication 1, caractérisé par le fait que dans le cas d'une perturbation due à un court-circuit (K) dans la ligne de dérivation (MPL1) comportant l'élément de commutation (UE1), qui est en amont du court-circuit (K) dans la ligne de dérivation (MPL1), la ligne de dérivation (MPL1), qui part de cet élément de commutation, est débranchée, et la seconde ligne primaire de signalisation d'arrivée (MPL2) est raccordée à la ligne de dérivation de départ (MPL1), au moyen de l'élément de commutation (UE2) en aval du court-circuit (K).
  3. Dispositif suivant la revendication 1 ou 2, caractérisé par le fait que l'élément de commutation comporte des bornes de raccordement pour une ligne de dérivation d'arrivée et pour une ligne de dérivation de départ (MPL1) ainsi que pour une seconde ligne primaire de signalisation d'arrivée et de départ (MPL2), et le dispositif d'interconnexion (S1) et le dispositif de commutation (US) sont branchés par le dispositif de commande (STE) en fonction d'instructions de commande provenant du central (Z), le dispositif de commutation (US) comportant au moins trois plans de commutation et trois positions de commutation.
  4. Dispositif suivant l'une des revendications précédentes, caractérisé par le fait que l'unité électronique de commande et le dispositif d'interconnexion (S1) sont formés comme dans des éléments réguliers.
  5. Dispositif suivant la revendication 4, caractérisé par le fait que les éléments de commutation (UE1) sont interrogés, afin de déterminer s'ils fonctionnent correctement, par le central (Z) par l'intermédiaire de la seconde ligne primaire de signalisation (MPL2), la position de commutation du dispositif de commutation (US) étant transmise au central (Z), ou sont commandés pour transmettre des instructions de commutation du dispositif de commutation (US).
EP91103978A 1991-03-14 1991-03-14 Arrangement pour commuter des lignes primaires en cas de perturbations Expired - Lifetime EP0503122B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT91103978T ATE131647T1 (de) 1991-03-14 1991-03-14 Anordnung zum umschalten von meldeprimärleitungen bei störungen
DE59107080T DE59107080D1 (de) 1991-03-14 1991-03-14 Anordnung zum Umschalten von Meldeprimärleitungen bei Störungen
EP91103978A EP0503122B1 (fr) 1991-03-14 1991-03-14 Arrangement pour commuter des lignes primaires en cas de perturbations
ES91103978T ES2080174T3 (es) 1991-03-14 1991-03-14 Disposicion para la conmutacion de lineas primarias de alarma en caso de averias.
GR950403641T GR3018511T3 (en) 1991-03-14 1995-12-21 Arrangement for commuting primary leads during faults

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91103978A EP0503122B1 (fr) 1991-03-14 1991-03-14 Arrangement pour commuter des lignes primaires en cas de perturbations

Publications (2)

Publication Number Publication Date
EP0503122A1 EP0503122A1 (fr) 1992-09-16
EP0503122B1 true EP0503122B1 (fr) 1995-12-13

Family

ID=8206523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103978A Expired - Lifetime EP0503122B1 (fr) 1991-03-14 1991-03-14 Arrangement pour commuter des lignes primaires en cas de perturbations

Country Status (5)

Country Link
EP (1) EP0503122B1 (fr)
AT (1) ATE131647T1 (fr)
DE (1) DE59107080D1 (fr)
ES (1) ES2080174T3 (fr)
GR (1) GR3018511T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510988B1 (fr) * 2003-08-18 2009-03-11 Siemens Aktiengesellschaft Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger
EP1508885A1 (fr) * 2003-08-18 2005-02-23 Siemens Building Technologies AG Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations par un moyen de communication commun, ainsi que système de signalisation de danger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0224819B1 (fr) * 1985-11-26 1991-01-30 Siemens Aktiengesellschaft Système de signalisation de danger
DE3637681A1 (de) * 1986-11-05 1988-05-19 Siemens Ag Gefahrenmeldeanlage nach dem pulsmeldesystem
FR2637107B1 (fr) * 1988-09-26 1994-05-13 Alcatel Cit Systeme de collecte des alarmes d'un ensemble de stations

Also Published As

Publication number Publication date
ATE131647T1 (de) 1995-12-15
DE59107080D1 (de) 1996-01-25
GR3018511T3 (en) 1996-03-31
ES2080174T3 (es) 1996-02-01
EP0503122A1 (fr) 1992-09-16

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