EP0004912B1 - Avertisseur de danger - Google Patents

Avertisseur de danger Download PDF

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Publication number
EP0004912B1
EP0004912B1 EP79101031A EP79101031A EP0004912B1 EP 0004912 B1 EP0004912 B1 EP 0004912B1 EP 79101031 A EP79101031 A EP 79101031A EP 79101031 A EP79101031 A EP 79101031A EP 0004912 B1 EP0004912 B1 EP 0004912B1
Authority
EP
European Patent Office
Prior art keywords
alarm
interrogation
store
location
assigned
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
EP79101031A
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German (de)
English (en)
Other versions
EP0004912A1 (fr
Inventor
Karlheinz Schreyer
Karla Oberstein
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
Publication of EP0004912A1 publication Critical patent/EP0004912A1/fr
Application granted granted Critical
Publication of EP0004912B1 publication Critical patent/EP0004912B1/fr
Expired 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
    • G08B26/006—Alarm systems in which substations are interrogated in succession by a central station with substations connected to an individual line, e.g. star configuration

Definitions

  • the invention relates to a danger alarm system with a plurality of detectors connected via alarm lines, with a memory, with a comparison device, with a detector interrogation device serving for cyclical interrogation of the individual detectors and a memory interrogation device controlled synchronously with it, and with an evaluation device connected downstream of the detector interrogation device and with one Test facility with which each failure or. Alarm signals are derived and fed to an evaluation device.
  • Such alarm systems are known, for example as a public fire alarm system.
  • these systems are modular; usually several cables can be connected to the controller boards in the control center. This results in the need to assign the correct indicators to the detectors that are actually switched on and to ensure that lines that are not connected do not cause a fault display.
  • a monitoring system is known from DE-OS 25 52 080, in which several local terminals are connected to a control center via a communication channel in order to receive information about changes in status in sensors connected to the terminals from these terminals.
  • Two different groups of sensors are provided, e.g. Fire alarms and intrusion detectors.
  • the one group for example the intrusion detectors, is assigned a blocking memory which has a corresponding memory cell for each sensor, which can assume one of two states. It is possible to switch between these states by means of control information transmitted by the control center, so that the delivery of a change in state of a sensor can be blocked, for example, at certain times.
  • the blocking memory which only has storage locations for a group of sensors, only serves as an on or off switch for the corresponding sensor group. It is not possible to determine or write in the corresponding storage location whether a sensor is present or connected.
  • the object of the invention is therefore to provide a hazard alarm system of the type mentioned in the introduction, in which the individual detectors are connected directly to a control center.
  • the system is designed to ensure constant monitoring of the detector configuration in a simple manner, and any changes in the assignment can be quickly and easily taken into account in the control center and in the evaluation.
  • this object is achieved in that the memory provided in a control center has a corresponding number of memory locations which corresponds to the number of switchable detector locations in the system, each memory location being assigned a specific detector location and the occupancy of this detector location using an input keyboard in the associated one
  • Memory space of the detector memory can be written in such that the outputs of the memory and detector interrogation devices are present at the comparison device, from which the fault or alarm signals can only be passed on to the evaluation device if there is an assignment for the detector space just queried is stored in the associated memory location, and that an output device is provided in the evaluation device, which is controlled synchronously with the depletion devices and at whose outputs display devices assigned to the individual signal lines are connected.
  • the system thus has a memory in the central, e.g. a read-write memory, in which the assignment of each individual signal line is stored via an input keyboard.
  • a memory in the central e.g. a read-write memory
  • the multiplex interrogation device the individual message lines and the memory locations assigned to the message directors in the read-write memory are queried synchronously, and the message signals queried by the message lines together with the queried memory signals are passed through a comparison device and only then forwarded to the evaluation device, when the associated memory location shows an occupancy.
  • the transfer takes place via a multiplex output device, which is also controlled synchronously with the interrogation device.
  • the read-write memory thus contains the entire system configuration in accordance with the assignment of the individual signal lines.
  • the individual memory locations are described using an input keyboard.
  • the comparison device ensures that incoming messages are compared with the stored elements, and that fault messages or alarm messages are only passed on if the line concerned is busy, that is, if the detector is entered as available in the memory location concerned.
  • Multiplex output device can preferably be used a microcomputer which is connected to the memory and the evaluation device.
  • the single figure shows a circuit diagram for a danger detection system with a central Z, from which individual detection lines L1 ... Ln lead to detectors M1 ... Mn.
  • the signal lines each lead to a detector interface MA1 ... MAn, in which the condition of the line or the connected detectors is checked.
  • a signal r for idle state, a for alarm state or a for fault message appears at one of the three outputs.
  • the individual detector connections MA1 to MAn are queried cyclically via a multiplex interrogation device (represented as a rotary selector) MX1 and MX2, namely the outputs a for the alarm signal via the interrogation device MX1 and the outputs s for malfunction signals via the interrogation device MX2.
  • An interrogation device is generally not required for the idle signals r, since the idle state does not need to be specifically displayed. As soon as an alarm or fault signal appears on a detector connection, it is fed to the alarm evaluation AA or the fault evaluation AS via the comparison device VG.
  • a read / write memory SP is also provided in the control center, in whose individual memory locations Sp1... Spn the assignment of each message line L1 to Ln is stored.
  • An input device such as a keyboard T, is used to enter a busy state in each memory location when the system is started up, if a detector is attached to the associated line. If detector M1 1 is switched on, contact T1 is closed and a logical one appears at the output of memory location Sp1.
  • the memory outputs are polled synchronously with the detector connections by a multiplex interrogation device MX7, the interrogated signal is also fed to the comparison device VG.
  • the alarm signals a and the fault signals s are only passed on to the evaluation circuits via the comparison device if the memory location in question has been found to be occupied.
  • the functions of the comparison device and of the multiplex interrogation devices can of course be carried out by a microcomputer with appropriate programming and with an associated read / write memory.
  • the alarm evaluation AA and the fault evaluation AS each contain a multiplex output device MX4 and MX5, via which an alarm signal a or a fault signal s of a specific signal line in the display device for switching on the associated LED AD1 ... ADn or SD1 ... SDn is used.
  • a flip-flop AF1 ... AFn or SF1 ... SFn is assigned to each LED.
  • the alarm signal is also fed to a bistable alarm switch BAS, which in the usual way gives an acoustic alarm or forwards the alarm message to a higher-level control center.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)

Claims (2)

1. Système avertisseur de danger, avec plusieurs dispositifs avertisseurs branchés par l'intermédiaire de lignes de signalisation, avec une mémoire, avec un dispositif de comparaison, avec un dispositif d'interrogation du dispositif de signalisation servant à l'interrogation cyclique des différents dispositifs avertisseurs et un dispositif d'interrogation de la mémoire commandé en synchronisme, et avec un dispositif d'évaluation monté en aval du dispositif d'interrogation des dispositifs avertisseurs, ainsi qu'avec un dispositif de contrôle à l'aide duquel on dérive des valeurs de mesure des dispositifs de signalisation qui entrent respectivement des signaux de dérangement et des signaux d'alarme et on les applique à un dispositif d'évaluation, caractérisé par le fait que la mémoire (SP) disposée dans un central (Z) comporte un nombre d'emplacements de mémoire (SP1 à SPn) qui correspond au nombre d'emplacements de dispositifs de signalisation du système qui sont susceptibles d'être branchés, à chaque emplacement de mémoire (SP1 à SPn) étant associé un emplacement déterminé du dispositif de signalisation (M1 à Mn) et l'occupation de cet emplacement de dispositif avertisseur étant susceptible d'être inscrite, par l'intermédiaire d'un clavier d'entrée (T), dans l'emplacement de mémoire associé (SP1 à SPn) de la mémoire des dispositifs avertisseurs (SP), que les sorties du dispositif d'interrogation (MX1, MX2, MX7) de la mémoire et des dispositifs avertisseurs sont reliées au dispositif de comparaison (VG) dont les signaux de dérangement ou d'alarme (s, a) ne sont commutés au dispositif d'évaluation (AS, AA) que si pour l'emplacement du dispositif avertisseur une occupation est mémorisée à l'emplacement de mémoire associé, et que dans le dispositif d'évaluation (AA, AS) est prévu un dispositif de sortie (MX4, MX5) qui est commandé en synchronisme avec les dispositiifs d'interrogation (MX1, MX2, MX7) et aux sorties duquel sont reliés les dispositifs d'affichage (AD1 ... ADn, SD1 ... SDn) associés respectivement aux différentes lignes de signalisation.
2. Système avertisseur de danger selon la revendication 1, caractérisé par le fait que l'on utilise comme dispositif de comparaison (VG) et comme dispositifs d'interrogation (MX1, MX2, MX7) commandée en synchronisme, ou comme dispositifs de sortie (MX4, MX5), un microprocesseur avec une mémoire qui lui est reliée.
EP79101031A 1978-04-19 1979-04-04 Avertisseur de danger Expired EP0004912B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2817090A DE2817090B2 (de) 1978-04-19 1978-04-19 Gefahrenmeldeanlage
DE2817090 1978-04-19

Publications (2)

Publication Number Publication Date
EP0004912A1 EP0004912A1 (fr) 1979-10-31
EP0004912B1 true EP0004912B1 (fr) 1983-03-02

Family

ID=6037467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101031A Expired EP0004912B1 (fr) 1978-04-19 1979-04-04 Avertisseur de danger

Country Status (5)

Country Link
US (1) US4250353A (fr)
EP (1) EP0004912B1 (fr)
JP (1) JPS54142098A (fr)
AT (1) AT373406B (fr)
DE (1) DE2817090B2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528423A (en) * 1981-12-04 1985-07-09 Base Ten Systems, Inc. Remote subscriber terminal unit
US4442320A (en) * 1981-12-04 1984-04-10 Base Ten Systems, Inc. Remote subscriber interaction system
DE3214439A1 (de) * 1982-04-20 1983-10-20 Brown, Boveri & Cie Ag, 6800 Mannheim Linientestgeraet
DE3235120A1 (de) * 1982-09-22 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Multiprozessorsystem fuer gefahrenmeldeanlagen
US4706241A (en) * 1985-03-12 1987-11-10 Pacific Bell Low speed gate circuit
ATE60849T1 (de) * 1985-05-24 1991-02-15 Siemens Ag Einbruchmeldeanlage.
US5822423A (en) * 1996-03-20 1998-10-13 Numerex Investment Corporation Apparatus and method for supervising derived channel communications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2552080A1 (de) * 1974-11-26 1976-07-08 Saab Scania Ab Ueberwachungsanlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842208A (en) * 1970-01-26 1974-10-15 Paraskevakos Elect & Comm Sensor monitoring device
DE2262823A1 (de) * 1972-12-22 1974-10-10 Controlmatic Ges F Ind Automat Alarm- und meldesystem
DE2341087C3 (de) * 1973-08-14 1979-09-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Automatische Brandmeldeanlage
DE2641489C2 (de) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2552080A1 (de) * 1974-11-26 1976-07-08 Saab Scania Ab Ueberwachungsanlage

Also Published As

Publication number Publication date
DE2817090B2 (de) 1980-10-30
DE2817090A1 (de) 1979-10-25
EP0004912A1 (fr) 1979-10-31
AT373406B (de) 1984-01-25
JPS6239479B2 (fr) 1987-08-24
US4250353A (en) 1981-02-10
JPS54142098A (en) 1979-11-05
ATA283579A (de) 1983-05-15

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