EP0090399A1 - Installation de signalisation à courant continu - Google Patents

Installation de signalisation à courant continu Download PDF

Info

Publication number
EP0090399A1
EP0090399A1 EP83103070A EP83103070A EP0090399A1 EP 0090399 A1 EP0090399 A1 EP 0090399A1 EP 83103070 A EP83103070 A EP 83103070A EP 83103070 A EP83103070 A EP 83103070A EP 0090399 A1 EP0090399 A1 EP 0090399A1
Authority
EP
European Patent Office
Prior art keywords
line
detector
signaling
alarm
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
EP83103070A
Other languages
German (de)
English (en)
Other versions
EP0090399B1 (fr
Inventor
Dirk Dipl.-Ing. Gesenhues
Karheinz Ing. Schreyer
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to AT83103070T priority Critical patent/ATE23759T1/de
Publication of EP0090399A1 publication Critical patent/EP0090399A1/fr
Application granted granted Critical
Publication of EP0090399B1 publication Critical patent/EP0090399B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Definitions

  • the invention relates to a direct current signaling system according to the preamble of patent claim 1.
  • DC systems for fire protection, emergency calls or other hazard monitoring devices, such as intrusion protection, are widespread because they require little effort.
  • detectors are connected in parallel to each detector line, which generally consists of a two-wire line and is also referred to as an alarm loop.
  • the detection line has an end link, e.g. a resistance, completed.
  • the terminating resistor provides a quiescent current through which the line is monitored.
  • the alarm device changes its resistance and thus the total resistance of the line.
  • the increasing or decreasing current is considered an alarm criterion. In the control center, however, it is generally not possible to determine which detector of the detector line has triggered the alarm in the known systems.
  • Alarm systems are known in which the individual detectors of a detector line can be identified. However, this is not common in DC signaling systems. If this is the case, a considerably higher amount of circuitry is required for the system and for the individual detectors.
  • DE-OS 29 35 335 describes a hazard detection system in which a plurality of detectors are connected to a control center via a conductor loop. Each detector has a series and a transverse resistor, an alarm switch and several diodes lying across the conductor loop. For example, A Zner diode is arranged in series in each detector to form a simple diode with opposite polarity to the Zener diode. These form a voltage limiter circuit.
  • the control center has a measuring device for determining the total resistance of the conductor loop. In the event of an alarm, the resistance of the conductor loop changes and is compared with stored resistance setpoints for the alarm. The alarming detector is determined from this.
  • a control device is also provided in the control center, which connects various direct voltages to the conductor loop in order to eliminate the pure line resistance in the respective detector by means of the voltage limiter circuit.
  • Such a hazard alarm system has the disadvantage that the control center has a complex and complicated circuit arrangement, that different direct voltages have to be switched on or over to the conductor loop in order to determine the pure line resistance and to subtract it from the total resistance of the conductor loop.
  • the individual detectors have a complicated circuit arrangement with a large number of components.
  • DE-OS 26 11 145 describes an alarm system with a control device designed as a balanced bridge, which is equipped for the protection of a number of objects with the sensors assigned to the objects, which are arranged with resistors in at least one current loop an alarm contact and in series with a resistor arranged in the conductor loop.
  • a control device designed as a balanced bridge, which is equipped for the protection of a number of objects with the sensors assigned to the objects, which are arranged with resistors in at least one current loop an alarm contact and in series with a resistor arranged in the conductor loop.
  • An additional detector or sensor is formed by a simple work contact, which is transverse to the conductor loop.
  • a downstream control device can only detect a change in resistance and thus display an alarm.
  • this arrangement has the disadvantage that the triggering detector cannot be recognized.
  • DE-OS 29 39 462 It is also known from DE-OS 29 39 462 a method for identifying individual detectors in intrusion or fire detection systems, in which the respective lines are queried for their resistance value and compared with stored resistance setpoints for the individual detectors for the alarm or sabotage case . The response of the relevant detector is displayed.
  • the disadvantage here is an elaborate circuit arrangement in the control center with several switch groups for switching on and switching over the line voltage and the comparison and logic elements.
  • the individual detectors have a number of components which make the detector complex and cost-intensive.
  • the object of the invention is to improve a direct current alarm system, in particular an intruder alarm system of the type described above, in such a way that distinguish the measuring and evaluation device in the control center and the individual detectors by a relatively simple circuit arrangement.
  • the triggering detector should be able to be displayed directly.
  • the measuring and evaluation device is directly connected to the respective detection lines and is formed by a series of window discriminators.
  • the number of discriminators is one more than the corresponding number of detectors connected to a line.
  • the response of the individual detectors can be determined and displayed directly. If a detector triggers, the discriminator in question responds depending on the resistance value of the detection line.
  • the individual detectors have a simple circuit arrangement with a resistor, which is connected in series in the detection line, and a switching element arranged parallel to the detection line, which is closed in the event of an alarm.
  • the detection line thus forms a conductor loop with fixed resistors connected in series.
  • the respective detection line has a certain total resistance, which is essentially formed by the total of the connected detection line or its resistances.
  • the response of one or more detectors changes the total resistance of the detector line.
  • the response of a specific detector results in a specific change in resistance, because the specific detector short-circuits the detection line, so that only the detectors between the control center and the particular detector contribute to the current total resistance of the line, ie the detection line. Eliminating the line resistance is not necessary. This particular change in resistance causes the discriminator in question to respond.
  • the hazard alarm system according to the invention does not require different DC voltages that have to be switched over or on. Likewise, no complex detectors are required. A large number of detectors of the same design, with only a few switching elements, are connected to one detector line.
  • the invention can be simple to build affordable and reliable detector systems. With such a measuring and evaluation device, it is possible for up to 20 detectors on a line to individually identify the detectors which trigger the alarm and to display them in the control center.
  • the signaling switch which in the simplest case can be a make contact, seen from the control center, can be arranged before or after the resistance of the individual detector. If it is arranged after the detector resistance, a terminating resistor must be provided as the end element after the last detector in the detection line. In the other case, the detection line must only be short-circuited at the end, so that an additional terminating resistor is not required.
  • the individual detectors can expediently have the same components, e.g. have equivalent resistances. This means that very inexpensive detectors can be installed, which can be arranged anywhere in the detection line, because no detector requires special coding for identification.
  • an alarm line ML is connected to the center Z.
  • the individual detectors M1 to Mn are connected to the detection line ML.
  • the resistance R of the individual detector is connected in series in the detection line.
  • the signaling switch S is shown here as a simple switching contact. It is arranged parallel to the detection line and open when it is quiet. In this case, the signaling switch is arranged from the control center Z in front of the signaling resistor R, so that the signaling line is terminated at the end with a short-circuit EG.
  • FIG. 2 A modified detector circuit is shown in FIG. 2.
  • the ML detection line is connected to the Z control center.
  • Several detectors M1 to Mn are connected to the ML detection line.
  • the detector resistor R is again connected in series to the detection line as in FIG. 1.
  • the signaling switch S is arranged after the signaling resistor R parallel to the signaling line ML.
  • the detection line is terminated with a terminating resistor RL as the end element.
  • a detector says, at for example, the detector M2, the alarm switch S is closed. As a result, the detector line is short-circuited after detector resistance R of detector 2. The detectors behind it are therefore ineffective.
  • the total resistance of the signaling line is changed suddenly, in this case reduced, and the instantaneous, according to the switching example, the total resistance of the signaling line formed by the detectors M1 and M2 is determined.
  • the detector that has responded can be identified from this resistance value.
  • FIG. 3 the central office Z is indicated, from which the reporting lines depart. Only one detection line ML is shown in FIG. 3.
  • the alarm line monitoring is located in the control center and can be periodically connected to the respective alarm line, for example.
  • a measuring device ME which determines the instantaneous resistance value of the detection line, is connected to the detection line ML.
  • This measuring device ME is connected to an evaluation device AW, which in turn has a display device ANZ, on which the detector (e.g. M1), which triggered the alarm, is displayed (LD1).
  • a disturbance e.g. If there is a short circuit or an open circuit on the line, it is also displayed (LDS).
  • a number of window discriminators (D0 to Dn) are provided for evaluating the measurement line measured values currently measured.
  • FIGS. 4 shows the arrangement according to the invention for the measurement (ME) and evaluation (AW) of the alarm-triggering detectors with window discriminators D ⁇ to Dn.
  • An ML detection line leads to the input of one Series of discriminators D0 to Dn.
  • the number of discriminators is one more than the corresponding number of detectors connected to a line ML.
  • the response of the individual detector can be determined and displayed directly (ANZ, M1 to ANZ, Mn) or another malfunction can be displayed (ANZ ST). If a detector triggers, the relevant discriminator responds depending on the resistance value of the detection line.
  • the individual detectors have a simple circuit arrangement, as shown in FIGS. 1 and 2.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
EP83103070A 1982-03-29 1983-03-28 Installation de signalisation à courant continu Expired EP0090399B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83103070T ATE23759T1 (de) 1982-03-29 1983-03-28 Gleichstrommeldeanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3211550 1982-03-29
DE3211550A DE3211550C2 (de) 1982-03-29 1982-03-29 Gleichstrommeldeanlage

Publications (2)

Publication Number Publication Date
EP0090399A1 true EP0090399A1 (fr) 1983-10-05
EP0090399B1 EP0090399B1 (fr) 1986-11-20

Family

ID=6159615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103070A Expired EP0090399B1 (fr) 1982-03-29 1983-03-28 Installation de signalisation à courant continu

Country Status (3)

Country Link
EP (1) EP0090399B1 (fr)
AT (1) ATE23759T1 (fr)
DE (1) DE3211550C2 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6292720A (ja) * 1985-10-16 1987-04-28 住友電気工業株式会社 バスダクト接続部の異常過熱検出装置
GB2224872A (en) * 1988-11-04 1990-05-16 Process Computing Ltd Signalling system
GB2312752A (en) * 1996-05-01 1997-11-05 Smiths Industries Plc Aircraft temperature monitoring
EP0806751A1 (fr) * 1996-05-10 1997-11-12 General Signal Corporation Adressage automatique dans un système d'alarme
EP1455278A1 (fr) * 2003-03-04 2004-09-08 Valeo Schalter und Sensoren GmbH Méthode pour l'identification d'un dispositif électronique
CN103489277A (zh) * 2013-09-26 2014-01-01 胡亨华 在线监控电气线路电阻参数的火灾预警系统
WO2015137896A1 (fr) * 2014-03-10 2015-09-17 Kocsistem Bilgi Ve Iletisim Hizmetleri Anonim Sirketi Procédé de transmission de données sur des réseaux de capteurs par consommation de charge régulée
DE102009053113B4 (de) 2008-11-17 2019-09-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Serielles Verriegelungssystem mit eingebauter Fähigkeit zum Identifizieren unterbrochener Stellen sowie Implementierungsverfahren

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620681A1 (de) * 1986-06-20 1987-12-23 Merk Gmbh Telefonbau Fried Schaltungsanordnung zur identifizierung von gefahrenmeldern
DE3719988A1 (de) * 1987-06-15 1988-12-29 Total Feuerschutz Gmbh Einzelidentifikation
DE19940700C2 (de) * 1999-08-27 2003-05-08 Job Lizenz Gmbh & Co Kg Verfahren und Vorrichtung zur automatischen Zuweisung von Melderadressen bei einer Gefahrenmeldeanlage
RU2368015C1 (ru) * 2008-01-09 2009-09-20 Общество с ограниченной ответственностью Научно-производственное объединение "Сибирский Арсенал" Способ контроля состояния и целостности шлейфа
EP3499250B1 (fr) * 2011-09-22 2021-08-04 ZTE Corporation Procédé et dispositif d'identification de redresseur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528764A1 (de) * 1975-06-03 1976-12-16 Bbc Brown Boveri & Cie Schaltungsanordnung zur ueberwachung von feuermeldern
DE2611145A1 (de) * 1976-03-17 1977-09-22 Grothe & Soehne Kg A Alarmanlage mit als abgeglichene bruecke ausgebildeter kontrollvorrichtung
US4152696A (en) * 1977-11-16 1979-05-01 Lectrolarm Custom Systems, Inc. Multi-function control circuit
GB2043794A (en) * 1979-02-28 1980-10-08 Mtu Muenchen Gmbh Turbine shrouding
DE2935335A1 (de) * 1979-08-31 1981-03-19 Siemens AG, 1000 Berlin und 8000 München Gleichstrom-meldeanlage
EP0026461A2 (fr) * 1979-09-28 1981-04-08 Siemens Aktiengesellschaft Circuit pour systèmes de détection d'intrusion ou d'incendie

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2939462C2 (de) * 1979-09-28 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Verfahren und Einrichtung zur Identifizierung einzelner Melder in Einbruch- oder Brandmeldeanlagen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2528764A1 (de) * 1975-06-03 1976-12-16 Bbc Brown Boveri & Cie Schaltungsanordnung zur ueberwachung von feuermeldern
DE2611145A1 (de) * 1976-03-17 1977-09-22 Grothe & Soehne Kg A Alarmanlage mit als abgeglichene bruecke ausgebildeter kontrollvorrichtung
US4152696A (en) * 1977-11-16 1979-05-01 Lectrolarm Custom Systems, Inc. Multi-function control circuit
GB2043794A (en) * 1979-02-28 1980-10-08 Mtu Muenchen Gmbh Turbine shrouding
DE2935335A1 (de) * 1979-08-31 1981-03-19 Siemens AG, 1000 Berlin und 8000 München Gleichstrom-meldeanlage
EP0026461A2 (fr) * 1979-09-28 1981-04-08 Siemens Aktiengesellschaft Circuit pour systèmes de détection d'intrusion ou d'incendie

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6292720A (ja) * 1985-10-16 1987-04-28 住友電気工業株式会社 バスダクト接続部の異常過熱検出装置
GB2224872A (en) * 1988-11-04 1990-05-16 Process Computing Ltd Signalling system
GB2312752A (en) * 1996-05-01 1997-11-05 Smiths Industries Plc Aircraft temperature monitoring
EP0806751A1 (fr) * 1996-05-10 1997-11-12 General Signal Corporation Adressage automatique dans un système d'alarme
US5831546A (en) * 1996-05-10 1998-11-03 General Signal Corporation Automatic addressing in life safety system
EP1455278A1 (fr) * 2003-03-04 2004-09-08 Valeo Schalter und Sensoren GmbH Méthode pour l'identification d'un dispositif électronique
DE102009053113B4 (de) 2008-11-17 2019-09-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Serielles Verriegelungssystem mit eingebauter Fähigkeit zum Identifizieren unterbrochener Stellen sowie Implementierungsverfahren
CN103489277A (zh) * 2013-09-26 2014-01-01 胡亨华 在线监控电气线路电阻参数的火灾预警系统
CN103489277B (zh) * 2013-09-26 2015-08-26 胡亨华 在线监控电气线路电阻参数的火灾预警系统
WO2015137896A1 (fr) * 2014-03-10 2015-09-17 Kocsistem Bilgi Ve Iletisim Hizmetleri Anonim Sirketi Procédé de transmission de données sur des réseaux de capteurs par consommation de charge régulée

Also Published As

Publication number Publication date
ATE23759T1 (de) 1986-12-15
DE3211550C2 (de) 1985-02-14
DE3211550A1 (de) 1983-10-13
EP0090399B1 (fr) 1986-11-20

Similar Documents

Publication Publication Date Title
EP0090399B1 (fr) Installation de signalisation à courant continu
EP0248298B1 (fr) Dispositif détecteur de danger
EP0042501B1 (fr) Dispositif pour la transmission des valeurs mesurées dans un système d'avertissement d'incendie
EP0026461B1 (fr) Circuit pour systèmes de détection d'intrusion ou d'incendie
DE2935335C2 (de) Gleichstrommeldeanlage
DE2939462C2 (de) Verfahren und Einrichtung zur Identifizierung einzelner Melder in Einbruch- oder Brandmeldeanlagen
EP0295593B1 (fr) Identification individuelle
DE2528764A1 (de) Schaltungsanordnung zur ueberwachung von feuermeldern
DE1167229B (de) Raumschutzanlage mit in eine Brueckenschaltung einbezogenen Messelektroden und periodischer UEberpruefung der Anlage
EP0224819B1 (fr) Système de signalisation de danger
DE3330869C2 (de) Schaltung zum Erkennen von Erdschlüssen in den Speisekreisen von Drehstrom-Weichenantrieben
DE3620681C2 (fr)
EP0098326A1 (fr) Circuit pour la signalisation de risques
DE3036029C2 (de) Schaltungsanordnung zur Überwachung einer Verbindungsleitung
DE3788005T3 (de) Pannensicheres Alarmsystem.
DE69510135T2 (de) Alarmdetektionsvorrichtung mit Stromschleifen und Bake zur Lokalisierung von Waterzonen für eine solche Vorrichtung
DE19516092B4 (de) Gefahrenmeldeanlage mit wenigstens einer Schirmleitung
DE2710046A1 (de) Brandmeldesystem
DE230660C (fr)
DE2749660A1 (de) Melde- und alarmeinrichtung mit einem oder mehreren binaeren meldern
EP0205930B1 (fr) Système pour la détection de cambriolage
DE2118304C (de) Feuermeldeanlage
EP0060319A1 (fr) Procédé et dispositif de mesure des capacités d'une cloture de protection à effet capacitif
DE2509219A1 (de) Einrichtung zum ermitteln und signalisieren einer, in einem der glieder einer messkette aufgetretenen stoerung
DE2726186A1 (de) Ueberwachungsvorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT IT NL

17P Request for examination filed

Effective date: 19831222

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT IT NL

REF Corresponds to:

Ref document number: 23759

Country of ref document: AT

Date of ref document: 19861215

Kind code of ref document: T

ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020220

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020308

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030328

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030328