EP0450119B1 - Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante - Google Patents

Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante Download PDF

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Publication number
EP0450119B1
EP0450119B1 EP90106374A EP90106374A EP0450119B1 EP 0450119 B1 EP0450119 B1 EP 0450119B1 EP 90106374 A EP90106374 A EP 90106374A EP 90106374 A EP90106374 A EP 90106374A EP 0450119 B1 EP0450119 B1 EP 0450119B1
Authority
EP
European Patent Office
Prior art keywords
line
coupler
elements
interrogation
coupler element
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
EP90106374A
Other languages
German (de)
English (en)
Other versions
EP0450119A1 (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
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 DK90106374.3T priority Critical patent/DK0450119T3/da
Priority to DE59010050T priority patent/DE59010050D1/de
Priority to AT90106374T priority patent/ATE132996T1/de
Priority to EP90106374A priority patent/EP0450119B1/fr
Priority to ES90106374T priority patent/ES2081865T3/es
Publication of EP0450119A1 publication Critical patent/EP0450119A1/fr
Application granted granted Critical
Publication of EP0450119B1 publication Critical patent/EP0450119B1/fr
Priority to GR950403691T priority patent/GR3018643T3/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 connecting further elements (detectors, sensors, control devices, etc.) to an existing primary signaling line of a hazard alarm system.
  • EP-A-191 239 describes a signaling system in which additional signaling elements can be inserted at any point in the primary signaling line by means of a T-coupler. However, this makes it necessary to readdress the elements.
  • the object of the invention is to provide a device for connecting further elements (detectors, sensors, etc.) at any point in an existing primary signal line, without having to change the existing addresses.
  • the coupler element according to the invention also referred to below as a T-coupler, now allows further elements to be connected via a stub line at any point on the primary signal line without changing existing element addresses.
  • the T-coupler is inserted between two existing elements. The newly added elements appear to be set at the end of the line. The T-coupler thus extends the start phase for the connected stub line until the polling of all elements of the primary signal line has ended.
  • the T-coupler essentially consists of measuring and switching electronics and at least one, preferably two, line switches. It is looped into the primary reporting line.
  • the measuring and switching electronics recognize the query of the last detector of the primary signal line and then controls the stub line, so that the elements connected to this stub line can be queried after the last element of the primary signal line. This has the advantage that additional elements, no matter where they are inserted in the primary line, are lined up in terms of their address to the last element of the reporting primary line.
  • the number of elements following the T-coupler can be stored in the T-coupler in order to recognize the last element of the primary signal line, the T-coupler having almost no delay after polling the last element of the primary signal line, the stub line with the others Elements in the query state switches without the T-coupler having its own address.
  • the T-coupler can identify the last element of the signaling primary line in an initialization phase in order to recognize it automatically determine the subsequent elements and store them in a memory so that they cannot be lost, whereby, as in the case described above, after the query of the last element, the stub line is switched on almost without delay on request, without the T-coupler having to be assigned its own address.
  • a measuring device which measures the time until the next query signal after each query signal and, when a predeterminable time is exceeded, recognizes that no elements are connected to the primary signal line anymore that the T-coupler switches the spur line to the polling state and thereby generates a polling signal itself that the center recognizes.
  • a T-coupler is connected and thus also has an address. It is important that the address of the T-coupler does not change the addressing of the elements of the primary signal line. From the control center, the T-coupler is seen as the first element of the branch line. In contrast, the T-coupler itself does not need any memory or any setting devices to store how many elements on the primary signal line still follow the T-coupler.
  • the device according to the invention can have different configurations in order either to prevent the spur line from being switched on or to control it in a targeted manner, or in a further variant to enable it only for every umpteenth query.
  • a control center Z with a primary alarm line MPL and elements E1 to En connected to it is shown schematically in FIG. 1.
  • a voltage and current profile UMP results; IMP on the primary signal line, seen from the control center, as shown in Fig. 2.
  • the voltage curve UMP shows the states of rest UR, the voltage drop for the start designated US and then the raising of the interrogation voltage to UAB.
  • the individual elements E1 to En send their measuring current pulses IE1 to IEn one after the other when they are switched on.
  • the T-coupler TK according to the invention is inserted in the signaling primary line MPL between the elements E2 and E3.
  • the branch line MPLS on the T-coupler TK is shown here by way of example with two elements which now have the addresses E (n + 1) and E (n + 2).
  • the T-Coupler TK has i.a. a measuring and switching electronics MSE, which controls the two line switches LS1 and LS2, which switch on the stub line MPLS to the primary signal line after the query of the last element En, in this case, therefore, with the wires a "and b" parallel to the primary signal line, so that the further elements E (n + 1) to E (n + i) can be queried.
  • MSE measuring and switching electronics
  • FIG. 6 the voltage and current profiles for a T-coupler TK according to the invention are again shown using the example of the pulse signaling technology corresponding to FIG. 4.
  • the voltage curve UMP of the primary signal line seen from the control center shows the open circuit voltage UR, the start voltage US and then the interrogation voltage UAB until the query is ended and the control center again applies the open circuit voltage UR to the primary signal line in order to charge the individual elements with voltage to supply the respective memory in the elements.
  • the voltage curve of the spur line is shown below and labeled UMPS. If the voltage on the primary detector line MPL is reduced from the idle voltage UR to the start voltage US, the stub line MPLS is likewise supplied with the start voltage US by the T-coupler TK.
  • the T-coupler disconnects the stub line MPLS from the signaling primary line MPL, the starting voltage US for the stub line MPLS is then zero. This state is maintained by the T-coupler TK for the stub line MPLS until the last element En of the signaling primary line MPL has been queried. Then the stub line MPLS is connected to the primary signal line via the T-coupler TK and thus the voltage UMPS on the stub line is increased to the interrogation voltage UAB only when the last element En of the primary message line is queried. The course of the Current IMP shown on the primary signal line. When the first element is queried, it emits a current pulse IE1.
  • the individual elements In the order in which the individual elements are arranged, they then emit their current pulses IE2 to IEn one after the other.
  • the stub line MPLS After querying the last element En of the signaling primary line MPL, the stub line MPLS is switched on, so that, as shown in FIG. 4, the first element E (n + 1) of the stub line IMPL receives its pulse IE (n + 1) and then almost without delay then the second element of the stub emits its pulse IE (n + 2).
  • the through-switches of the individual elements are opened in a known manner by the starting voltage US, as are the line switches LS1, LS2 of the T-coupler TK according to the invention.
  • the transmission between the individual elements of the primary signaling line and the control center takes place in a known manner, as has already been explained above using the pulse reporting principle.
  • this data transmission can also take place by means of a known pulse code modulation.
  • the measuring electronics MSE of the T-coupler TK according to FIG. 5 the latter follows the data traffic between the center Z and the subsequently connected elements, in this example E3 to En.
  • each current pulse on this primary signal line is counted.
  • the switches LS1 and LS2 are closed via the switching electronics MSE of the T-coupler TK and the stub line MPLS of the primary signal line MPL is connected in parallel. Now the elements connected to this stub can transmit their data to the control center in a known manner.
  • the subsequent idle phase all elements on the primary signal line and on the stub line are supplied with energy in a known manner.
  • the spur line and the elements connected to it are monitored in the same way as the primary signal line with its elements.
  • setting elements e.g. Switches, solder bridges or memory can be used to set or store the number of elements that are still connected to the primary signal line. Since in this one exemplary embodiment of the T-coupler switches the stub line to the signaling primary line almost without delay, the control center does not notice the existence of the T-coupler, since it does not emit a signal itself and therefore does not have its own address. Therefore, it does not have to be supplied specifically at the headquarters.
  • the T-coupler itself can automatically determine the number of elements of the primary signal line still connected after it in an initialization phase Store the value in a suitable, for example battery-buffered, memory so that it cannot be lost.
  • a suitable for example battery-buffered, memory
  • the T-coupler checks after each current pulse whether another follows during a predetermined time. If this is not the case, the stub line is switched on after this waiting time.
  • the T-coupler must be known to the control center since it now generates a signal (current pulse ITK) which the control center recognizes, i.e. switches to the query state. In this case, no memories or setting devices are required in the T-coupler.
  • current pulse ITK current pulse
  • the first diagram shows the voltage profile UMP of the primary signal line as seen from the control center.
  • the open circuit voltage UR is reduced in a known manner to the start voltage US and after a certain time to the Interrogation voltage UAB increased.
  • the query voltage UAB is increased to the idle value UR.
  • the voltage curve UMPS of the branch line UMPS is shown below.
  • the open circuit voltage UR is reduced to the start voltage US and remains at this value until the T-coupler switches on the spur line, ie switches to the polling state.
  • the interrogation voltage UAB remains for the further interrogation until after the interrogation the voltage is raised to the idle value UR.
  • the corresponding current diagram is shown below.
  • the line current IMP shows the known course, namely a respective current pulse that each queried element emits. In this case up to the element En, which emits the current pulse IEn. Then, after the predetermined waiting time described above, the current pulse is given by the T-coupler, designated ITK, and then the current pulses IE (n + 1), IE (n + 2) of the elements of the stub line.
  • the T-coupler works in a similar way as described above, but the switching process or the polling of the spur line can be prevented by a control command from the control center.
  • This is shown in FIG. 8 again using the example of the pulse signaling arrangement on the voltage and current diagram.
  • the control pulse UST which is caused by a brief drop in the interrogation voltage UAB, is transmitted during the measuring time of the T-coupler, that is, between the current pulses IEn and ITK.
  • the query i.e. prevents the stub line from being switched on during the query phase on the part of the T-coupler.
  • the stub line is only switched on in the idle phase UR in order to supply the connected elements with energy.
  • the switch S1 shown or the two switches LS1 and LS2 can be designed as a changeover switch.
  • the spur line is no longer connected in parallel with the primary signal line, but it is switched over. This is always useful if elements can be operated without energy storage, ie without switching on in the idle phase. In this way it is possible to provide longer line lengths.
  • T-coupler In this exemplary embodiment, only one T-coupler is always shown, but several such T-couplers can be installed on a signaling primary line, and a spur line can also be branched again with a T-coupler.
  • the electronics of the T-coupler can be constructed using conventional, energy-saving components, advantageously CMOS components or microcomputers.
  • the energy supply for the T-coupler is routed via the primary line.
  • a line can also be routed externally.
  • the line switches can expediently be made of powerful semiconductor switches, e.g. SIPMOS transistors with a low on resistance.
  • T-coupler With the T-coupler according to the invention, existing primary reporting lines can be easily expanded and additional elements connected and queried. There is no need to change existing element addresses and those stored in plans. The newly added elements are connected to the address of the primary primary line last used. Short and inexpensive line routing can advantageously be installed.
  • the elements of the primary signaling line can advantageously be queried more frequently than the elements of the stub line. In this way, connection does not take place with every interrogation cycle, but only after every xth cycle, this number x either being set in the T-coupler or being specified by the control center.
  • Intrusion protection elements can, for example, be connected directly to the primary reporting line and can therefore be queried faster or more frequently than fire detection elements (smoke detectors, etc.) that are operated via the branch line.

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

Claims (10)

  1. Dispositif de raccordement d'éléments supplémentaires (transmetteurs, capteurs, appareils de commande, etc.) àune ligne principale de signalisation déjà existante (MPL) d'une installation de signalisation de danger, qui fonctionne selon le principe de la synchronisation en chaîne, l'adressage des éléments (E1 à En) s'effectuant automatiquement sur la base de leur disposition dans la ligne (MPL), tandis que l'échange des données entre les divers éléments (E1 à En) et un central (Z) s'effectue au moyen de l'interrogation cyclique par le central (Z),
    caractérisé par le fait
    qu'au moins un élément formant coupleur (coupleur en T TK) est inséré en un emplacement quelconque entre deux éléments dans la ligne principale de signalisation (MPL), que les autres éléments (E (n+i)) sont raccordés à l'élément formant coupleur (TK) par l'intermédiaire d'une ligne de dérivation, qui forme une autre ligne principale de signalisation (MPLS),
    que l'élément formant coupleur (TK) comporte un système électronique de mesure et de commutation (MSE), qui commande un dispositif de commutation retardant l'interrogation de la ligne de dérivation (MPLS), jusqu'à ce que tous les éléments (E1 à En) de la ligne principale de signalisation (MPL) soient interrogés, et
    que l'élément formant coupleur (TK) reconnaît l'interrogation du dernier élément (En) de la ligne principale de signalisation (MPL) et met ensuite en interrogation la ligne de dérivation (MPLS) pourvue des éléments supplémentaires (E (n+i)).
  2. Dispositif suivant la revendication 1, caractérisé par le fait que pour reconnaître le dernier élément (En) de la ligne principale de signalisation (MPL), le nombre des éléments, qui succèdent à ce dernier élément, est mémorisé dans l'élément formant coupleur (TK), et que l'élément formant coupleur (TK) met en interrogation presque immédiatement la ligne de dérivation, l'élément de couplage (TK) n'ayant aucune adresse propre.
  3. Dispositif suivant la revendication 1, caractérisé par le fait que pour reconnaître le dernier élément (En) de la ligne principale de signalisation (MPL), le système électronique de mesure et de commutation (MSE) de l'élément formant coupleur (TK) détermine automatiquement, lors d'une phase d'initialisation le nombre des éléments qui le suivent et mémorise ce nombre dans une mémoire prévue à cet effet et que l'élément formant coupleur (TK) interroge presque immédiatement la ligne de dérivation, l'élément formant coupleur (TK) n'ayant aucune adresse propre.
  4. Dispositif suivant la revendication 1, caractérisé par le fait que pour reconnaître le dernier élément (En) de la ligne principale de signalisation (MPL), le système électronique de mesure et de commutation (MSE) de l'élément formant coupleur (TK) mesure la durée entre chaque signal d'interrogation (par exemple impulsion de courant) et le signal d'interrogation suivant et, si cette durée est supérieure à un temps prescrit, le système électronique de mesure et de commutation (MSE) met en interrogation la ligne de dérivation, l'élément formant coupleur (TK) produisant un signal propre d'interrogation (impulsion de courant ITK).
  5. Dispositif suivant la revendication 4, caractérisé par le fait que pendant la durée de mesure de l'élément formant coupleur (TK), une instruction de commande (UST), transmise par le central (Z), empêche l'interrogation de la ligne de dérivation.
  6. Dispositif suivant la revendication 4 ou 5, caractérisé par le fait qu'une instruction de commande (UST), qui est transmise pendant la durée de mesure de l'élément formant coupleur (TK), commande l'élément de coupleur (TK) pour qu'il interroge (LS1, LS2) la ligne de dérivation (MPLS).
  7. Dispositif suivant l'une des revendications 1 à 3, caractérisé par le fait que l'élément formant coupleur (TK) a un compteur réglable de cycles, qui ne provoque une interrogation de la ligne de dérivation que tous les x cycles.
  8. Dispositif suivant l'une des revendications 4 à 6, caractérisé par le fait que dans le cas d'un élément formant coupleur adressable (TK), une interrogation de la ligne de dérivation ne s'effectue par le central que tous les x cycles.
  9. Dispositif suivant l'une des revendications précédentes, caractérisé par le fait que le dispositif de commutation est formé d'au moins un interrupteur de ligne (LS1), qui est sous la forme d'un interrupteur ou d'un commutateur.
  10. Dispositif suivant l'une des revendications précédentes, caractérisé par le fait que plusieurs éléments formant coupleur (TK) sont raccordés à la ligne principale de signalisation (MPL) et/ou à la ligne de dérivation (MPLS).
EP90106374A 1990-04-03 1990-04-03 Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante Expired - Lifetime EP0450119B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK90106374.3T DK0450119T3 (da) 1990-04-03 1990-04-03 Indretning til tilslutning af yderligere elementer til en allerede eksisterende signalprimærledning
DE59010050T DE59010050D1 (de) 1990-04-03 1990-04-03 Einrichtung zum Anschliessen weiterer Elemente an eine bereits bestehende Meldeprimärleitung
AT90106374T ATE132996T1 (de) 1990-04-03 1990-04-03 Einrichtung zum anschliessen weiterer elemente an eine bereits bestehende meldeprimärleitung
EP90106374A EP0450119B1 (fr) 1990-04-03 1990-04-03 Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante
ES90106374T ES2081865T3 (es) 1990-04-03 1990-04-03 Instalacion para la conexion de otros elementos a una linea primaria de alarma ya existente.
GR950403691T GR3018643T3 (en) 1990-04-03 1996-01-11 Device for connecting additional elements to an existing alarm line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90106374A EP0450119B1 (fr) 1990-04-03 1990-04-03 Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante

Publications (2)

Publication Number Publication Date
EP0450119A1 EP0450119A1 (fr) 1991-10-09
EP0450119B1 true EP0450119B1 (fr) 1996-01-10

Family

ID=8203854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106374A Expired - Lifetime EP0450119B1 (fr) 1990-04-03 1990-04-03 Dispositif pour raccorder des éléments additionnels à une ligne servant à la surveillance et déjà existante

Country Status (6)

Country Link
EP (1) EP0450119B1 (fr)
AT (1) ATE132996T1 (fr)
DE (1) DE59010050D1 (fr)
DK (1) DK0450119T3 (fr)
ES (1) ES2081865T3 (fr)
GR (1) GR3018643T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240650B3 (de) * 2002-09-03 2004-02-26 Siemens Gebäudesicherheit GmbH & Co. oHG Verfahren zum Adressieren von Meldern in einer Gefahrenmeldeanlage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6906616B1 (en) 1995-03-20 2005-06-14 Wheelock, Inc. Apparatus and method for synchronizing visual/audible alarm units in an alarm system
US5608375A (en) 1995-03-20 1997-03-04 Wheelock Inc. Synchronized visual/audible alarm system
DE102009050692B4 (de) * 2009-10-26 2011-12-01 Phoenix Contact Gmbh & Co. Kg Sicherheits-Kommunikationssystem zur Signalisierung von Systemzuständen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2533382C2 (de) * 1975-07-25 1980-07-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren und Einrichtung zur Übertragung von Meßwerten in einem Brandmeldesystem
DE3008450C2 (de) * 1980-03-05 1986-09-18 Georg Prof. Dr. 8012 Ottobrunn Färber Sequentielles Übertragungssystem zum adressenlosen Anschließen mehrerer Teilnehmer an eine Zentrale
CH664637A5 (de) * 1982-04-28 1988-03-15 Cerberus Ag Verfahren zur uebertragung von messwerten in einem ueberwachungssystem.
GB8431883D0 (en) * 1984-12-18 1985-01-30 Gent Ltd Transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10240650B3 (de) * 2002-09-03 2004-02-26 Siemens Gebäudesicherheit GmbH & Co. oHG Verfahren zum Adressieren von Meldern in einer Gefahrenmeldeanlage

Also Published As

Publication number Publication date
ATE132996T1 (de) 1996-01-15
ES2081865T3 (es) 1996-03-16
EP0450119A1 (fr) 1991-10-09
DK0450119T3 (da) 1996-02-26
GR3018643T3 (en) 1996-04-30
DE59010050D1 (de) 1996-02-22

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