EP0098552B1 - Verfahren und Einrichtung zur automatischen Abfrage des Meldermesswerts und der Melderkennung in einer Gefahrenmeldeanlage - Google Patents

Verfahren und Einrichtung zur automatischen Abfrage des Meldermesswerts und der Melderkennung in einer Gefahrenmeldeanlage Download PDF

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Publication number
EP0098552B1
EP0098552B1 EP83106446A EP83106446A EP0098552B1 EP 0098552 B1 EP0098552 B1 EP 0098552B1 EP 83106446 A EP83106446 A EP 83106446A EP 83106446 A EP83106446 A EP 83106446A EP 0098552 B1 EP0098552 B1 EP 0098552B1
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EP
European Patent Office
Prior art keywords
signal
detector
identification
value
measured
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
Application number
EP83106446A
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German (de)
English (en)
French (fr)
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EP0098552A1 (de
Inventor
Otto-Walter Dipl.-Ing. Moser
Peer Dr.-Ing. 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
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Siemens AG
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Priority to AT83106446T priority Critical patent/ATE17972T1/de
Publication of EP0098552A1 publication Critical patent/EP0098552A1/de
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Publication of EP0098552B1 publication Critical patent/EP0098552B1/de
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a device for carrying out the method.
  • Hazard detection systems are often equipped with different types of detectors.
  • An example is a fire alarm system to which smoke, heat, flame and push-button detectors are connected.
  • the measured physical fire parameter is evaluated in the detector using a suitable algorithm. Only a standardized, generally digital signal is transmitted to the control center. Different parameters are often evaluated in the detector using different algorithms.
  • Alarm systems are also known which no longer evaluate the fire parameter in the detector, but instead pass it analogously to the alarm center in a suitable transmission method, in which an evaluation device, preferably a microcomputer, processes the measured values of all the detectors.
  • Such alarm systems are also used for intrusion protection.
  • Alarm systems are also used for intrusion protection.
  • Such a signaling system is described for example in DE-B2-25 33 330.
  • the detector is prompted to emit a current pulse with a pulse duration proportional to its measured value.
  • the address of the individual detector and the analog detector measurement value are determined by measuring the lead time using an evaluation device.
  • a third parameter e.g. B. type of detector (smoke, flame or heat detector), the respective detector is not provided in this transmission method and not easily possible. Likewise, the transmission of a third parameter of a detector in DE-B2-25 33 382 is not possible.
  • DE-B2-25 33 382 a method is described for such alarm systems, which electrically separates all detectors from the detection line at the beginning of each query cycle and then switches on the detectors in a predetermined order in such a way that each detector corresponds to a measurement value Time delay also switches the subsequent detector on to the line voltage.
  • An evaluation device is located in the control center, which determines the respective detector address from the number of previous increases in the line current and the measured value from the length of the relevant switching delays. There, the analog detector measurement values are linked to obtain differentiated fault or alarm messages.
  • detectors that are triggered for test purposes, such as revision, must not cause an alarm. They should only show the response at the headquarters. In such cases, it is necessary to identify different types of detectors or operating states and to inform the control center.
  • a detector identification namely the type of detector and / or the status of the detector
  • Detector-specific identifiers can be saved in the control center for each detector in the system.
  • This entry of a detector identification which is generally carried out manually, is correspondingly stored via switches or a keyboard.
  • the data entered must exactly match the current status of the system. Errors caused during input or when replacing a detector can not be reliably detected by the system and can have serious consequences in the event of an alarm. If a change is made in such systems, e.g. For example, if a detector type is exchanged for another because the room is being used for other purposes, this must also be entered in the control center.
  • the object of the invention is to avoid manual entry of the detector detection in the control center and to specify a method and a device for automatically querying detector detection in addition to the detector measurement value and the detector address. With the aid of a known transmission method and known evaluation devices, it should be possible to automatically detect a detector-specific identification and to evaluate it in the control center without much additional effort.
  • the signal generated by the individual detector and controlling the running time of the timing element is the sum of the Signal for the detector measured value and the characteristic signal for detector detection are formed.
  • the detector measured value and the detector detection for the detector concerned are determined in the control center from the running time of the relevant timing element or from the switching delay until the next detector is switched on.
  • An expedient embodiment of the method consists in that the identification signal is generated with a predeterminable constant value or a multiple thereof for the different detector identification in order to influence the running time of the respective time element.
  • the time until the next detector is switched on is measured in a simple manner in the control center, and the detector detection and the measured value of the detector are determined from this total time. This can advantageously be done by dividing this total measured time by the time corresponding to the constant value. The quotient without a remainder then gives the detector identification, the remainder corresponds to the detector measured value.
  • detectors that work according to different physical principles in a system, such as. B. ionization and heat detectors, which are connected to a signal line, are caused in that the different idle values (detector measured values of the idle detector) have distinguishable switching delays for the relevant timing element.
  • the detector identification or detector type of the detector concerned is derived from this.
  • the signal controlling the running time of the timer of the respective detector reaches the timer from the output of a signal converter.
  • the signal converter is connected in parallel to the signaling line in each detector and has a transducer and an identifier in series.
  • An evaluation device is arranged in the control center and determines the measured value and the identifier of the detector concerned from the respective switching delay.
  • the detector M is connected to the control center via the signal line ML. A large number of detectors are connected to the signaling line, but are not shown here.
  • the signal line ML consists of conductors 1 and 2, to which the voltage U is present.
  • the detector M essentially contains a timing element T1, which is started in the cyclical interrogation when the voltage U is applied.
  • the transit time T of the timing element T1 is influenced by the output signal U su of the signal converter SU.
  • the size of the output signal controls the running time (T) of the timing element.
  • the signal converter SU contains on the one hand a transducer MW for converting the physical fire size into an electrical signal, and on the other hand an identifier KG for identifying the type of detector.
  • the identifier KG is connected in series to the transducer MW.
  • the line voltage U is briefly switched off at the beginning of a query cycle. So that the transducer MW can be supplied with voltage during this time, a capacitor C1 is provided, which supplies the transducer for this time.
  • the diode D1 prevents feedback.
  • the timer T1 is started. After the time T, which depends on the output signal U su of the signal converter SU, the transistor TR1 becomes low-resistance and switches the detection line through to the next detector. Switching on the next detector increases the line current.
  • a further timer (MF; R T , C T ) is provided in each detector when the next detector is switched on, a load resistor R2 is additionally connected to the signal line ML in a known manner in order to achieve an additional current pulse on the line.
  • the additional timing element is connected downstream of the timing element T1 and in the present case consists of a monoflop MF, which is started at the same time as the transistor TR1 is turned on.
  • the output Q of the monoflop MF leads to a further transistor TR2, which also becomes conductive and draws an additional current via the resistor R2 via the detection line ML, which causes the known current pulse.
  • An RC element with R T and C T is assigned to the monoflop MF, with which the running time of the monoflop can be set. Resistor R2 determines the amplitude of the additional current pulse.
  • the transducer MW is a voltage source U K connected in series.
  • the output signal U su is the sum of the measurement signal U MW and the identification signal U K.
  • the exact value of the identifier is determined by U K.
  • the time profile of the line current (IL) is explained later using the current-time diagram.
  • FIG 3 shows the signal converter SU for an ionization detector IM.
  • the ionization chamber IK represents the transducer.
  • the identifier or the constant voltage source is formed by a measuring resistor R IM , which is connected in series to the ionization chamber IK. If the ionization detector IM is at rest, a characteristic voltage U K is present at the output of the signal converter SU. This voltage U KI characterizes the ionization detector IM and is relatively large in the idle state, so that the timer T1 causes a long time delay T I when queried.
  • a heat detector WM as shown in FIG. 4 for the signal converter SU.
  • the thermistor HL is connected in series with the measuring resistor R WM .
  • the timer T1 of the relevant detector is only started for a short time T W during the cyclical interrogation. From the short time of the switching delay, a heat detector can be recognized in the control center, provided that it is at rest. An increase in temperature causes an increase in the voltage U KW at the measuring resistor R WM and thus an increase in the running time of the timing element T1, which leads to alarm detection in the control center.
  • FIG. 5 shows a current diagram for an alarm line, for example.
  • the line current IL is plotted against time t.
  • the first detector M1 is connected to the signal line ML.
  • a current flows at a certain level on the signaling line for the period of time T i until, due to the switching delay of the timing element T1 of the detector M1, the second detector M2 is switched on at the time t 2 .
  • the transit time T of the timing element T1 is correspondingly influenced as a function of the detector detection K and the detector measured value using the signal converter (SU).
  • the detector M1 has, for example, a detector identifier K 2 , which is formed by a double (2 - U) K of the constant voltage U K (as explained in FIG. 2).
  • the running time T1 of the timing element T1 is composed of the identification signal with the constant value 2 * T K plus the measuring signal T MW1 .
  • the identifier K 2 is therefore from the runtime T, of the timer T1 2 ⁇ T K and the measured variable (T MW1 ) of the first detector M1 can be derived.
  • the second detector M2 is switched on with an additional pulse via the transistor TR1.
  • the running time of the timing element of the second detector M2 is denoted by T 2 .
  • T 2 the running time of the timing element of the second detector M2 is denoted by T 2 .
  • T MW2 the detector measured value
  • the third detector M3 is switched on.
  • the running time T 3 of this third detector M3 is in turn composed of the identification signal and the measurement signal.
  • the identifier K 3 is characterized by three times (3 ⁇ T K ) the constant value T K.
  • the measured variable is T MW3 .
  • the switch-on points of further detectors are also shown in FIG. 5.
  • the fourth detector M4 is switched on, the timer of which has a running time T 4 .
  • This runtime includes the detector measured value T MW4 plus the detector identifier K, due to the simple constant value T K.
  • the fifth detector is started at time t5, and the message line is interrogated until all the detectors are interrogated.
  • the detector measured variable and the detector detection are derived from the running time of the respective timers measured there.
  • the recording of the individual transit times can be recorded in the control center by so-called time windows which are formed in the control center.
  • 5 shows a series of time windows ZF above the current-time diagram, which are newly formed each time a detector is switched on again. For example, at time t 1 , when the timer of the first detector M1 is started, a series of time windows ZF1 to ZF3 has been set. If, as shown here, the switch-on pulse of the second detector M2 falls in the third time window ZF3, it can be deduced from this that the first detector M1 has the detector identifier K 2 .
  • the second detector M2 When the second detector M2 is switched on, a new series of time windows ZF1, ... is set in the control center.
  • the next detector switch-on pulse occurs in the first time window ZF1, as shown in Fig. 5, it can be derived from this that the second detector M2 has the detector identifier K o .
  • This is also illustrated for the other detectors in FIG. 5.
  • it may also be derived in the control center, as already explained, by forming the quotient from the measured switching delay (T) and the specific constant value (T K) the detector identifier (K) and from the remaining (T WM) of Meldermeßwert .
  • FIG. 6 shows a further current-time diagram, which refers to the different rest values of the different types of avoiders, as shown in FIGS. 3 and 4.
  • the line current IL is plotted against the time t.
  • the timer (T1) of the first detector M1 is started at time t1. It is assumed that the first detector M1 is of the ionization detector type (M) and has an idle value RW, which emits a large voltage (U KI ) at the output of the signal converter (SU), in contrast to another detector type, so that the Runtime T, the timer (T1) is large.
  • the second detector M2 is a heat detector WM, which, in reverse to the first detector M1, outputs a small output voltage (U KW ) at the signal converter (SU), the timer of the heat detector MW is only started for a short time T W.
  • the detector types can be recognized in the same system based on the different idle values RW and RW w of the different message types IM and WM.
  • Ionization detectors IW therefore have a long idle value RW
  • WM heat detectors have a short idle value RW w .
  • this procedure was exemplified for only two different types of detectors. It can also be used for several different types of detectors.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Audible And Visible Signals (AREA)
EP83106446A 1982-07-05 1983-07-01 Verfahren und Einrichtung zur automatischen Abfrage des Meldermesswerts und der Melderkennung in einer Gefahrenmeldeanlage Expired EP0098552B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106446T ATE17972T1 (de) 1982-07-05 1983-07-01 Verfahren und einrichtung zur automatischen abfrage des meldermesswerts und der melderkennung in einer gefahrenmeldeanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3225106 1982-07-05
DE3225106A DE3225106C2 (de) 1982-07-05 1982-07-05 Verfahren und Einrichtung zur automatischen Abfrage des Meldermeßwerts und der Melderkennung in einer Gefahrenmeldeanlage

Publications (2)

Publication Number Publication Date
EP0098552A1 EP0098552A1 (de) 1984-01-18
EP0098552B1 true EP0098552B1 (de) 1986-02-12

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EP83106446A Expired EP0098552B1 (de) 1982-07-05 1983-07-01 Verfahren und Einrichtung zur automatischen Abfrage des Meldermesswerts und der Melderkennung in einer Gefahrenmeldeanlage

Country Status (8)

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EP (1) EP0098552B1 (enrdf_load_stackoverflow)
JP (1) JPS5971600A (enrdf_load_stackoverflow)
AT (1) ATE17972T1 (enrdf_load_stackoverflow)
BR (1) BR8303583A (enrdf_load_stackoverflow)
DE (2) DE3225106C2 (enrdf_load_stackoverflow)
DK (1) DK308383A (enrdf_load_stackoverflow)
ES (1) ES8404083A1 (enrdf_load_stackoverflow)
GR (1) GR78895B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940700C2 (de) * 1999-08-27 2003-05-08 Job Lizenz Gmbh & Co Kg Verfahren und Vorrichtung zur automatischen Zuweisung von Melderadressen bei einer Gefahrenmeldeanlage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180907B1 (de) * 1984-10-31 1991-09-25 Siemens Aktiengesellschaft Melderanordnung in einer Gefahrenmeldeanlage
DE3584000D1 (de) * 1984-10-31 1991-10-10 Siemens Ag Verfahren zur kennungsuebertragung von sensoren in einer gefahrenmeldanlage.
WO1986003215A1 (en) * 1984-11-20 1986-06-05 Mitsui Toatsu Chemicals, Incorporated Dichroic azo dyes
DE3744208A1 (de) * 1987-12-24 1989-07-06 Rieter Ag Maschf Verfahren und vorrichtung fuer die uebertragung von informationen bei einer eine vielzahl von produktionsstellen aufweisenden herstellungsmaschine
JP7714445B2 (ja) 2021-11-24 2025-07-29 信越化学工業株式会社 レジスト下層膜材料、パターン形成方法、及びレジスト下層膜形成方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297008B (de) * 1967-01-11 1969-06-04 Siemens Ag Meldeanlage mit in einer zweiadrigen Schleife parallelgeschalteten Meldern
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
DE2533330C3 (de) * 1975-07-25 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Verfahren und Einrichtung zur Übertragung von Meßwerten in einem Brandmeldesystem
DE2533354C3 (de) * 1975-07-25 1979-08-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zum Übertragen von Steuerbefehlen in einem Brandschutzsystem
DE2638068C3 (de) * 1976-08-24 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Brandmeldeanlage mit mehreren über eine Meldeschleife betreibbaren Meldern
DE2817089B2 (de) * 1978-04-19 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gefahrenmeldeanlage
DE2836760C2 (de) * 1978-08-23 1983-11-17 Dr. Alfred Ristow GmbH & Co, 7500 Karlsruhe Elektronisches Fernüberwachungssystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940700C2 (de) * 1999-08-27 2003-05-08 Job Lizenz Gmbh & Co Kg Verfahren und Vorrichtung zur automatischen Zuweisung von Melderadressen bei einer Gefahrenmeldeanlage

Also Published As

Publication number Publication date
GR78895B (enrdf_load_stackoverflow) 1984-10-02
JPH0341879B2 (enrdf_load_stackoverflow) 1991-06-25
DE3225106A1 (de) 1984-01-12
EP0098552A1 (de) 1984-01-18
DK308383A (da) 1984-01-06
ATE17972T1 (de) 1986-02-15
ES523867A0 (es) 1984-04-01
ES8404083A1 (es) 1984-04-01
DE3225106C2 (de) 1985-04-11
JPS5971600A (ja) 1984-04-23
DK308383D0 (da) 1983-07-04
BR8303583A (pt) 1984-02-14
DE3362119D1 (en) 1986-03-27

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