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EP0066200A1 - Procédé et dispositif pour la révision dans un système détecteur de danger et particulièrement d'incendie - Google Patents

Procédé et dispositif pour la révision dans un système détecteur de danger et particulièrement d'incendie Download PDF

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Publication number
EP0066200A1
EP0066200A1 EP82104417A EP82104417A EP0066200A1 EP 0066200 A1 EP0066200 A1 EP 0066200A1 EP 82104417 A EP82104417 A EP 82104417A EP 82104417 A EP82104417 A EP 82104417A EP 0066200 A1 EP0066200 A1 EP 0066200A1
Authority
EP
European Patent Office
Prior art keywords
revision
detector
alarm
message
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.)
Granted
Application number
EP82104417A
Other languages
German (de)
English (en)
Other versions
EP0066200B1 (fr
Inventor
Otto Walter Dipl.-Ing. Moser
Peer Dr. Thilo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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 AT82104417T priority Critical patent/ATE15838T1/de
Publication of EP0066200A1 publication Critical patent/EP0066200A1/fr
Application granted granted Critical
Publication of EP0066200B1 publication Critical patent/EP0066200B1/fr
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12Checking intermittently signalling or alarm systems
    • G08B29/126Checking intermittently signalling or alarm systems of annunciator circuits
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12Checking intermittently signalling or alarm systems
    • G08B29/14Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits

Definitions

  • the invention relates to a method for revision in a hazard, in particular fire alarm system, in which several detectors are connected to a control center, in which the individual detectors can be connected to an evaluation device with a cyclical interrogation device.
  • the line with the automatic detectors is switched to revision in the central. Then these detectors are checked. The line in the control center is then armed and the manually operated detectors, which have their own detection line, are switched to revision. Now the manual detectors are triggered and this line is then armed again. The maintenance technician must therefore walk through the same spatial area twice to trigger the different detectors. This means an increased expenditure of time.
  • Another disadvantage is that, in the meantime, the switchover from one detection line to the other detection line has to be carried out in the control center for the same area, which leads to an additional expenditure of time, especially since the detection location and control center can generally be further apart.
  • the object of the invention is to provide a revision method which avoids the disadvantages indicated above and which allows a revision without suppressing the detection and further processing of alarms occurring during the revision.
  • the method according to the invention is intended both in the case of conventional alarm systems, also with a plurality of detectors per line, which cannot be identified individually, and also in the case of modern hazard alarm systems, which allow the individual detectors to be identified and the multistage or analog detector signals to be evaluated at the control center, allow a revision.
  • This object is achieved in that the detectors are switched individually, in groups or in their entirety to a respective revision display without suppressing an alarm display, that a first message from a detector to be revised is assessed as a revision message and displayed that after a Revision message of the relevant detector is automatically reset after a predetermined time and the revision message that has been saved is saved, and that another message from the same detector is evaluated and forwarded as an alarm message.
  • the detectors In hazard alarm systems with detectors that emit multi-stage or analog signals that are evaluated in the control center, it is advisable to make the detectors less sensitive and to separately evaluate and display the detector signals with two threshold value circuits provided in the central evaluation device.
  • the threshold level for real alarms is higher than that Threshold value level for alarm signals that are to be assessed as revision signals.
  • the evaluation circuit has two threshold value circuits with an upper and a lower threshold value level, during which the detector to be revised emits a detector signal which is evaluated and displayed as a revision message. If a hazard parameter that should trigger a real alarm occurs on a detector during the revision, this is recognized in the control center with the upper threshold value level of the evaluation circuit and forwarded and displayed as a real alarm.
  • the response sensitivity for an alarm message in the evaluation circuit of the control center can also remain unchanged if a second threshold value circuit is provided for a lower threshold value.
  • a second threshold value circuit is provided for a lower threshold value.
  • An alarm line L1 runs from the area to be monitored to the control center.
  • Several automatic detectors MA1 to MAn are connected to this detection line L1.
  • this detection line L1 can have manually operable detectors MM1 to MM3 to a lesser extent than automatic detectors MA. If the L1 alarm line is switched to revision, one of these manual MM detectors can be triggered manually in the event of a sudden danger. Conversely, if the manually operable detectors MM are switched to revision, an actually occurring danger can cause one of the automatic detectors MA to respond and thus lead to an alarm display.
  • the automatic detectors MA to MAn and the manual detectors MM1 to MM3 can be on the same line, e.g. L1, as shown in Fig.2.
  • an alarm message cannot be suppressed and cannot be lost.
  • FIGS. 3a to b illustrate the course of the detector measurement values MMW, plotted over time T, according to the revision method according to the invention, as will be explained in more detail using the switching example with reference to FIG.
  • the detector measured values MMW are monitored in the control center Z with an evaluation device AW (FIGS. 4 to 6). If, for example, the idle value MMW of the detector is above the alarm threshold SWA, a drop in the detector measured value MMW to or below the alarm threshold SWA, for example at time TA, causes an alarm A, as shown in FIG.
  • the detector signal (MMW) which is briefly (t) released during the revision by the detector at time TR and which falls below the alarm threshold value SWA is evaluated as revision signal R and the revision message is displayed. After a certain time, e.g. at time To, the detector is automatically reset.
  • the idle value MMW o of the detector drops below the alarm threshold SWA, for example, at time T1 and thereby initially causes a revision message R, which is displayed as such.
  • the detector is automatically reset. If at this point in time T2 the detector measured value MMW is still below the alarm threshold SWA, this is recognized and displayed as alarm A. An alarm message is not lost during the revision, it is only displayed with a time delay.
  • 3d illustrates the course of the detector measured value MMW with revision message R and subsequent real alarm A.
  • the detector switched into revision is revised at time TR. As already explained, this means a brief (t) drop in the detector measured value MMW from the idle value MMW o below the alarm threshold value SWA. After the time t, the detector measurement value MMW returns to its idle value MMW. The revision message R is displayed. This fact is in the revision circuit RS, as per. Fig.4 is still shown, saved. After a certain time, at time To, the detector is automatically reset. A later real alarm A of the already revised detector, for example at time TA, then immediately leads to a real alarm A according to the invention. If the detector measured value MMW falls below the alarm threshold SWA, an alarm A is displayed immediately.
  • each detector M is assigned a revision circuit RS.
  • the detectors are connected to a control center Z via detection lines L.
  • detectors M11 to M1n are connected to control center Z via detection line L1.
  • a plurality of detection lines L are connected to the center Z.
  • the incoming signals from the detectors M11 to Mmn are converted in a signal matching circuit SA for further processing.
  • An evaluation circuit AW known per se which has, inter alia, a threshold value circuit SW, scans the individual message lines L1 to Lm in succession via the line multiplexer LX and checks whether a message is present or not.
  • a revision circuit RS is provided for each detector M, which is shown in detail in the circuit example for the detector M11 and is designated RS11. It is controlled by the evaluation circuit AW via the MX multiplexer known per se.
  • a signal from a detector means a logic H signal at the output of the evaluation circuit AW.
  • each revision circuit RS is assigned a revision switch RK and a display diode for revision RD and a display diode for alarm AD.
  • the revision display diodes RD11 to RDmn and the alarm display diodes AD11 to ADmn are each supplied with an H level, the revision switches RK11 to RKmn are each supplied with an L level.
  • the revision circuit RS is explained in more detail below.
  • the revision circuit RS11 has a memory which is formed from two gates, a first NOR gate G1 and a second NOR gate G2. Downstream of the memory is a monoflop MF1, the first output Q of which leads to the first input of a first NAND gate G3 and the second output Q of which leads to the first input of a second NAND gate G4.
  • the output of the NAND gate G3 leads to the alarm diode AD11 and the i output of the NAND gate G4 leads to the revision diode RD11.
  • the detector signal is on the one hand at the first Input of the NOR gate G1, on the other hand to the respective second inputs of the two NAND gates G3 and G4.
  • the first input of the second NOR gate G2 is supplied with an L level when the revision switch RK11 is switched on, as is the reset input R of the monoflop MF1.
  • the output Q of the NOR gate G1 leads to the second input of the second NOR gate G2, the output Q of the second NOR gate G2 leads to the second input of the NOR gate G1 and to the input of the monoflop MF1. If the detector (M11) is switched to revision, the revision contact RK11 is closed. If there is an H signal from the detector M11 at the input of the revision circuit RS11, the memory, formed from the two NOR gates G1 and G2, is set and the subsequent monoflop ⁇ W1 is triggered.
  • an upper and lower limit value can be set in an evaluation device according to the requirements if only two threshold value circuits are available.
  • 5 shows a circuit example for a revision method in which the detectors are switched less sensitive. 5 is the same as FIG. 4 with respect to the line query LX.
  • the evaluation device AW has two threshold value circuits SWO and SWU for an upper and a lower threshold value.
  • a revision circuit RS as in FIG. 4 is unnecessary since a decision as to whether a revision message or an alarm message is present is made in the evaluation device AW. This means that the response threshold for the alarm is set higher during the revision, so that during the revision, the threshold circuit for the lower threshold SWU responds. This is recognized in the cyclic line scan LX with the lower threshold SWU.
  • a parallel connection via the detector multiplexer MX leads from the respective output of the upper and lower threshold value switch SWO and SWU to a two-pole revision switch RK; shown in Figure 5 on the revision switch RK'11.
  • This is connected in parallel to a pair of display diodes AD11 and RD11, so that for each detector M there is a display for the revision message RD and a display for the alarm message AD.
  • the upper threshold SWO responds.
  • the revision switch RK ' is switched over, that is to say in the position not shown, so that the alarm signal originates from the upper threshold SWO of the evaluation device AW comes to the alarm display AD.
  • the threshold circuit for a lower threshold value is set so that it responds to the revision and can be displayed as revision message RD.
  • Fig.6 There are two threshold value circuits SWA and SWR in the evaluation device AW.
  • the SWA threshold circuit responds to a detector alarm (alarm threshold). This is indicated by the detector multiplexer MX on the alarm diode AD assigned to the respective detector M (in the drawing e.g.
  • the respective revision message display RD is switched on with the revision switch RK, so that during the revision with a small amount of test medium, the threshold circuit SWR (revision threshold) responds and the revision display RD is activated (in the drawing RD11 and RK11).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Colloid Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP82104417A 1981-05-26 1982-05-19 Procédé et dispositif pour la révision dans un système détecteur de danger et particulièrement d'incendie Expired EP0066200B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82104417T ATE15838T1 (de) 1981-05-26 1982-05-19 Verfahren und anordnung zur revision in einem gefahren-, insbesondere brandmeldesystem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3120986 1981-05-26
DE19813120986 DE3120986A1 (de) 1981-05-26 1981-05-26 Verfahren und anordnung zur revision in einem gefahren-, insbesondere brandmeldesystem

Publications (2)

Publication Number Publication Date
EP0066200A1 true EP0066200A1 (fr) 1982-12-08
EP0066200B1 EP0066200B1 (fr) 1985-09-25

Family

ID=6133272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104417A Expired EP0066200B1 (fr) 1981-05-26 1982-05-19 Procédé et dispositif pour la révision dans un système détecteur de danger et particulièrement d'incendie

Country Status (7)

Country Link
US (1) US4517554A (fr)
EP (1) EP0066200B1 (fr)
AT (1) ATE15838T1 (fr)
BR (1) BR8203043A (fr)
DE (2) DE3120986A1 (fr)
DK (1) DK151989C (fr)
NO (1) NO156150C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121102A2 (fr) 1983-03-03 1984-10-10 Siemens Aktiengesellschaft Dispositif pour la commutation d'avertisseurs individuels à l'opération de contrôle dans des installations de signalisation de danger

Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
DE3463582D1 (en) * 1983-03-04 1987-06-11 Cerberus Ag Circuit arrangement for the interference level control of detectors, arranged in a danger detection device
US4591834A (en) * 1983-11-25 1986-05-27 Argus Systems, Inc. Intrusion detecting apparatus with zone identification and with noise interference discrimination
JPS60126798A (ja) * 1983-12-13 1985-07-06 ニッタン株式会社 環境異常検出装置
CH666974A5 (de) * 1984-02-13 1988-08-31 Cerberus Ag Ueberwachung von elektrischen parametern und deren einstellung bei einem einbruchmelder.
JPS6219999A (ja) * 1985-07-18 1987-01-28 ホーチキ株式会社 火災報知装置
US4725818A (en) * 1985-09-13 1988-02-16 Simplex Time Recorder Co. Walk through test system
WO1987003988A1 (fr) * 1985-12-24 1987-07-02 Monitronix Limited Systeme sequentiel electronique de decelement de pannes
US4691346A (en) * 1986-03-06 1987-09-01 American Telephone And Telegraph Company PBX integrity arrangement for maintaining the functional integrity of PBX communication devices and associated facilities
US4916432A (en) * 1987-10-21 1990-04-10 Pittway Corporation Smoke and fire detection system communication
US4881060A (en) * 1988-11-16 1989-11-14 Honeywell Inc. Fire alarm system
US4962368A (en) * 1989-05-04 1990-10-09 General Signal Corporation Reliability and workability test apparatus for an environmental monitoring system
FI916182A7 (fi) * 1991-01-18 1992-07-19 Hochiki Co Kombinerad metod foer faststaellande av brand.
US6137402A (en) * 1999-03-04 2000-10-24 Pittway Corp. Method for arming a security system
JP3716803B2 (ja) * 2002-03-07 2005-11-16 オムロン株式会社 リスク評価支援装置及びプログラム製品
US7257515B2 (en) * 2004-03-03 2007-08-14 Hewlett-Packard Development Company, L.P. Sliding window for alert generation
US9767679B2 (en) 2014-02-28 2017-09-19 Tyco Fire & Security Gmbh Method and apparatus for testing fire alarm initiating devices
CN112074882B (zh) 2018-05-11 2022-08-09 开利公司 用于对联网的警报单元进行测试的系统和方法

Citations (3)

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US4032909A (en) * 1975-07-07 1977-06-28 Eugene E. Karsten Arrangement for testing an alarm system and method
EP0004911A1 (fr) * 1978-04-19 1979-10-31 Siemens Aktiengesellschaft Avertisseur de danger
GB2054923A (en) * 1979-06-30 1981-02-18 Mather & Platt Alarms Ltd Self-testing alarm systems

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US3665399A (en) * 1969-09-24 1972-05-23 Worthington Corp Monitoring and display system for multi-stage compressor
US3806872A (en) * 1973-05-10 1974-04-23 Avco Corp Address interrupt and current status display
JPS5434501B2 (fr) * 1974-02-15 1979-10-27
US4067008A (en) * 1975-12-29 1978-01-03 Denver Fire Reporter & Protective Co., Inc. Multiplex interrogation system using pulses
DE2817121C2 (de) * 1978-04-19 1985-10-10 Siemens AG, 1000 Berlin und 8000 München Gefahrenmeldeanlage
US4400694A (en) * 1979-12-03 1983-08-23 Wong Raphael W H Microprocessor base for monitor/control of communications facilities

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032909A (en) * 1975-07-07 1977-06-28 Eugene E. Karsten Arrangement for testing an alarm system and method
EP0004911A1 (fr) * 1978-04-19 1979-10-31 Siemens Aktiengesellschaft Avertisseur de danger
GB2054923A (en) * 1979-06-30 1981-02-18 Mather & Platt Alarms Ltd Self-testing alarm systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121102A2 (fr) 1983-03-03 1984-10-10 Siemens Aktiengesellschaft Dispositif pour la commutation d'avertisseurs individuels à l'opération de contrôle dans des installations de signalisation de danger
EP0121102A3 (en) * 1983-03-03 1984-11-14 Siemens Aktiengesellschaft Arrangement for switching individual indicators over to the monitoring operation in a danger alarm system

Also Published As

Publication number Publication date
US4517554A (en) 1985-05-14
DK151989C (da) 1988-07-18
DE3120986A1 (de) 1982-12-16
EP0066200B1 (fr) 1985-09-25
DK235582A (da) 1982-11-27
NO156150C (no) 1987-08-05
DE3266501D1 (en) 1985-10-31
NO156150B (no) 1987-04-21
ATE15838T1 (de) 1985-10-15
NO821351L (no) 1982-11-29
DK151989B (da) 1988-01-18
BR8203043A (pt) 1983-05-10

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