EP0559554A1 - Control system for device with autonomous blocks of sound alarm - Google Patents

Control system for device with autonomous blocks of sound alarm Download PDF

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Publication number
EP0559554A1
EP0559554A1 EP93400535A EP93400535A EP0559554A1 EP 0559554 A1 EP0559554 A1 EP 0559554A1 EP 93400535 A EP93400535 A EP 93400535A EP 93400535 A EP93400535 A EP 93400535A EP 0559554 A1 EP0559554 A1 EP 0559554A1
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EP
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Prior art keywords
loop
control system
blocks
management unit
block
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EP93400535A
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German (de)
French (fr)
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EP0559554B1 (en
Inventor
Jean-Claude Mangez
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SAFT Societe des Accumulateurs Fixes et de Traction SA
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SAFT Societe des Accumulateurs Fixes et de Traction SA
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Definitions

  • the invention relates to a control system, in particular for the dissemination of information, for an installation provided with autonomous sound alarm blocks, used to give the alert in the event of a fire.
  • the alarm in the event of a fire in installations is conventionally provided by sound, it involves means which are for example autonomous sound alarm blocks, as provided for by the French standard NFC 48-150 published by the union. Electricity technique.
  • These audible alarm blocks are designed to be able to be associated in parallel and possibly placed under the supervision of an alarm center.
  • alarm blocks form an assembly connected to a loop comprising triggers, in particular of the glass breakage type, which have contacts opening the loop on which they are mounted in series, in the event of actuation.
  • the blocks mounted in parallel comprise current detectors which control audible alarm means, when a loop opening interrupts the current which circulates permanently in the loop.
  • alarm blocks mounted in parallel form an assembly connected to a loop in the same manner as above, and sound alarm means of the blocks are triggered in the event of '' interruption of the current which circulates permanently in the loop, the opening of the loop in the event of an alert is normally carried out using an opening contact controlled by the alarm center.
  • Each alarm block which is connected to an external power source which is most often a power distribution network is also connected to the loop wires which allow it to be controlled in the event of an alert.
  • alarm systems of this type are intended to be permanently operational, even if in fact the actuation of the audible alarm means is normally only exceptional.
  • the geographic arrangement of the audible alarm blocks in an installation which is designed to alert all the people present likely to be affected is also particularly well suited to the audible communication of synthetic indications which, for example , have a general interest or are intended for people who are mobile in the installation.
  • the invention therefore proposes a control system, in particular for the dissemination of information, for an installation provided with associated sound alarm blocks according to a loop organization, in which the blocks of a loop are connected in parallel on both sides. other of at least one switching member placed in series in this loop which is supplied with electric current.
  • Each block includes a loop current detector connected to a management unit responsible for controlling electroacoustic means activated to generate an audible alarm signal, in the event of a loop current interruption of a duration greater than a threshold.
  • the system comprises means associated with a loop switching member for generating pulses, on the loop, in the form of sequences corresponding to predetermined coded commands, each block comprising means, software or other and for example analog, to reconstruct the commands coded at the level of the management unit which it comprises from the variations created by the pulses on the loop as indicated by the associated loop current detector.
  • the single figure shows a block diagram of a control system for an installation fitted with audible alarm blocks.
  • the diagram shown in Figure 1 relates to an installation with sound alarm blocks referenced 1 grouped around a loop on which is mounted in series at least one switching device 2, of the opening contact type, of a trip device .
  • the trigger is for example with manual control, of the glass breakage type, as indicated above, it is possibly an electrically controlled trigger, the switching member 2 then being an electromagnetic relay or an electronic device, in each of the case it comprises at least two switching terminals A and B which are electrically connected when the member is in a first normal standby state, here symbolized by a relay contact closed at rest, and which are capable of being electrically isolated l 'of each other if the organ is placed in another state.
  • This member is placed in series in a loop which is supplied with current by a generator, such as 3, and which closes at a current detector, such as 4, responsible for signaling any interruption of the current flowing through the loop.
  • a loop can of course include several switching members arranged in series along the loop and usually distributed in the installation to allow triggering from then different locations, in the case of an installation with manual alert triggering, any opening of the loop by one of the members ensuring of course the interruption of the loop current.
  • alarm blocks 1 are also capable of being served by the same loop from the moment they are connected in parallel to the two terminals A and B of the same switching device, as shown in the single figure, or to the corresponding end terminals of a set of switching members in series on the same loop, in particular in the case of a multi-trip installation.
  • each alarm unit 1 comprises a circuit 5 for supplying electrical energy intended to be connected to an external source which is most often an AC distribution network.
  • an alarm unit also includes an internal energy source 6, usually of the storage battery type, in order to allow autonomous operation of the unit and in particular of the audible alarm means 7, in the event of network supply interruption.
  • the circuit 5 and the internal source 6 are connected by a diode assembly 8, known, so as to be able to replace one another to supply the alarm block 1 of which they are part and the generator 3 loop current, without, in particular, significant interruption of this current.
  • a charger 9 allows charging and maintaining the charge of the internal source 6, when this source is of the storage battery type.
  • a management unit 10 is also incorporated in each block, it is for example organized, in a known manner, around a microcontroller 10M equipped with read only and non-live memories, as well as a time base 10B in order to '' control the audible alarm means 7 and auxiliary means 12, such as signaling means capable of providing information, in particular on the state of the block and of the loop to which this block is connected, for example using indicators or a screen display.
  • the auxiliary means 12 are often arranged to allow the control of one or more simple actuators, not shown, via the management unit 10.
  • the latter is therefore connected by its input-output ports to the current detector 4 which provides it with information on the state of the loop to which the block is connected, to the internal source 6 and here to the charger 9 which respectively provide indications on the respective supply possibilities of the block by this source and by the network.
  • auxiliary means 12 which preferably include an electro-acoustic transducer 7 usually attacked via an electronic assembly 13.
  • the time base 10B of the management unit makes it possible in particular to set a certain number of time delays, for example of alert stop after triggering.
  • the time base 10B of a block is also used in connection with the microcontroller 10M and with the loop current detector 4 of this block to decode commands produced in impulse form for example at the level of or one of the switching members 2 in series with a loop.
  • the memories of the microprocessor 10M then contain software modules making it possible to reconstruct the coded commands from the indications received from the associated detector and to trigger the corresponding actions.
  • a device 14 for generating coded commands is then associated with the chosen switching member 2, it is for example a generator of command pulses which is clocked by a time base not shown and which acts on the switching member so that this one produce variations in the loop current chosen to be detectable by the current detectors of the blocks served by a loop, without risking being taken into account as a loop break involving an alarm triggering.
  • the device 14 is programmed to act on a switching member 2 of a loop so as to trigger loop openings of which the limited duration is sufficient for these openings to be taken into account by the detectors 4 connected to the loop, the microcontroller 10M associated with a detector in a block being programmed, in a manner known per se, to recognize with the assistance of the time base 10B of this block, if a loop opening is of a duration greater than an alert triggering threshold or if shorter it is likely to correspond to an element of a message corresponding to a predetermined coded command.
  • the control unit of each of the blocks receiving a message corresponding to one or one of the coded commands provided, by means of a loop, then counts the number of openings which are signaled to it by the detector 4 associated with it and interprets this count so as to trigger a corresponding, predetermined action.
  • This action is likely to be a warning bell at the start or end of the course in the case of an installation carried out in a school establishment, many other actions can be initiated in the same way, such as the emission a predetermined message intended for all or part of the persons located within sound range of an electroacoustic transducer 7, the message being for example recorded in digital form in a memory provided in the management unit 10, the latter then being provided with a digital decoder -analogical inserted in or upstream of the electronic assembly 13.
  • a self-test function can also be triggered at the level of each block in order to facilitate the supervision and consequently the maintenance of the installation which includes such blocks.
  • the device 14 is a circuit capable of significantly and for a determined time modifying the value of the current passing through the switching member 2 with which it is associated so as to produce variations, for example clocked in a predetermined manner, loop current without interrupting it.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

Control system, especially for broadcasting information, for an installation fitted with audible alarm units (1) connected in parallel on either side of at least one switching stage (2) placed in series in a loop for which an electric-current power supply is provided; each unit including a loop current detector (4) linked to a management unit (10) tasked with the control of electroacoustic means (7) generating an audible alarm signal, in the event of an interruption of loop current. The system includes means (14) connected to a loop switching stage for generating pulses, on the loop, in the form of series corresponding to predetermined coded commands, each unit includes means within the management unit which it includes for reconstituting the coded indications. <IMAGE>

Description

L'invention concerne un système de commande, notamment de diffusion d'informations, pour installation dotée de blocs autonomes d'alarme sonore, exploités pour donner l'alerte en cas d'incendie.The invention relates to a control system, in particular for the dissemination of information, for an installation provided with autonomous sound alarm blocks, used to give the alert in the event of a fire.

L'alerte en cas d'incendie dans des installations est classiquement prévue par voie sonore, elle implique des moyens qui sont par exemple des blocs autonomes d'alarme sonore, tels que prévus par la norme française NFC 48-150 éditée par l'union Technique de l'Electricité.The alarm in the event of a fire in installations is conventionally provided by sound, it involves means which are for example autonomous sound alarm blocks, as provided for by the French standard NFC 48-150 published by the union. Electricity technique.

Ces blocs d'alarme sonore sont prévus pour pouvoir être associés en parallèle et éventuellement placés sous la supervision d'une centrale d'alarme.These audible alarm blocks are designed to be able to be associated in parallel and possibly placed under the supervision of an alarm center.

Dans une première forme de réalisation destinée aux installations sans centrale d'alarme, des blocs d'alarme forment un ensemble relié à une boucle comportant des déclencheurs, notamment du type bris de glace, qui ont des contacts ouvrant la boucle sur laquelle ils sont montés en série, en cas d'actionnement.In a first embodiment intended for installations without an alarm center, alarm blocks form an assembly connected to a loop comprising triggers, in particular of the glass breakage type, which have contacts opening the loop on which they are mounted in series, in the event of actuation.

Les blocs montés en parallèle comportent des détecteurs de courant qui commandent des moyens d'alarme sonore, lorsqu'une ouverture de boucle interrompt le courant qui circule en permanence dans la boucle.The blocks mounted in parallel comprise current detectors which control audible alarm means, when a loop opening interrupts the current which circulates permanently in the loop.

Dans une autre forme de réalisation destinée aux installations à centrale d'alarme, des blocs d'alarme montés en parallèle forment un ensemble relié à une boucle de même manière que précédemment, et des moyens d'alarme sonore des blocs sont déclenchés en cas d'interruption du courant qui circule en permanence dans la boucle, l'ouverture de boucle en cas d'alerte étant normalement réalisée à l'aide d'un contact à ouverture commandé par la centrale d'alarme.In another embodiment intended for installations with an alarm center, alarm blocks mounted in parallel form an assembly connected to a loop in the same manner as above, and sound alarm means of the blocks are triggered in the event of '' interruption of the current which circulates permanently in the loop, the opening of the loop in the event of an alert is normally carried out using an opening contact controlled by the alarm center.

Chaque bloc d'alarme qui est relié à une source d'alimentation externe qui est le plus souvent un réseau de distribution d'énergie est aussi relié aux fils de boucle qui permettent de le commander en cas d'alerte.Each alarm block which is connected to an external power source which is most often a power distribution network is also connected to the loop wires which allow it to be controlled in the event of an alert.

En raison de leur fonctionnalité, les installations d'alarme de ce types sont prévues pour être opérationnelles de manière permanente, même si en fait l'actionnement des moyens d'alarme sonore n'est normalement qu'exceptionnel.Owing to their functionality, alarm systems of this type are intended to be permanently operational, even if in fact the actuation of the audible alarm means is normally only exceptional.

Il est donc envisageable d'exploiter les moyens offerts par de telles exploitations pour d'autres usages à partir du moment où il est possible de donner une priorité absolue à la fonction d'alarme, lorsqu'une alerte doit être déclenchée.It is therefore conceivable to use the means offered by such operations for other uses from the moment when it is possible to give absolute priority to the alarm function, when an alert must be triggered.

En effet, la disposition géographique des blocs d'alarme sonore dans une installation qui est prévue pour permettre d'alerter toutes les personnes présentes susceptibles d'être concernées, est aussi particulièrement bien adaptée à la communication sonore d'indications synthétiques qui, par exemple, ont un intérêt général ou qui sont destinées à des personnes mobiles dans l'installation.In fact, the geographic arrangement of the audible alarm blocks in an installation which is designed to alert all the people present likely to be affected is also particularly well suited to the audible communication of synthetic indications which, for example , have a general interest or are intended for people who are mobile in the installation.

L'invention propose donc un système de commande, notamment de diffusion d'informations, pour installation dotée de blocs d'alarme sonore associés selon une organisation en boucle,dans laquelle les blocs d'une boucle sont connectés en parallèle de part et d'autre d'au moins un organe de commutation placé en série dans cette boucle qui est alimentée en courant électrique.The invention therefore proposes a control system, in particular for the dissemination of information, for an installation provided with associated sound alarm blocks according to a loop organization, in which the blocks of a loop are connected in parallel on both sides. other of at least one switching member placed in series in this loop which is supplied with electric current.

Chaque bloc comporte un-détecteur de courant de boucle relié à une unité de gestion chargée de la commande de moyens électroacoustiques activés pour générer un signal d'alarme sonore, en cas d'interruption de courant de boucle d'une durée supérieure à un seuil prédéterminé, Selon une caractéristique de l'invention, le système comporte des moyens associés à un organe de commutation de boucle pour générer des impulsions, sur la boucle, sous forme de suites correspondant à des commandes codées prédéterminées, chaque bloc comportant des moyens, logiciels ou autres et par exemple analogiques, pour reconstituer les commandes codées au niveau de l'unité de gestion qu'il comporte à partir des variations créées par les impulsions sur la boucle telles qu'indiquées par le détecteur de courant de boucle, associé. L'invention, ses caractéristiques et ses avantages sont précisés dans la description qui suit en liaison avec la figure unique évoquée ci-dessous.Each block includes a loop current detector connected to a management unit responsible for controlling electroacoustic means activated to generate an audible alarm signal, in the event of a loop current interruption of a duration greater than a threshold. According to a characteristic of the invention, the system comprises means associated with a loop switching member for generating pulses, on the loop, in the form of sequences corresponding to predetermined coded commands, each block comprising means, software or other and for example analog, to reconstruct the commands coded at the level of the management unit which it comprises from the variations created by the pulses on the loop as indicated by the associated loop current detector. The invention, its characteristics and its advantages are explained in the description which follows in conjunction with the single figure mentioned below.

La figure unique présente un schéma de principe d'un système de commande pour installation dotée de blocs d'alarme sonore.The single figure shows a block diagram of a control system for an installation fitted with audible alarm blocks.

Le schéma montré en figure 1 se rapporte à une installation dotée de blocs d'alarme sonore référencés 1 regroupés autour d'une boucle sur laquelle est monté en série au moins un organe de commutation 2, de type contact à ouverture, d'un déclencheur.The diagram shown in Figure 1 relates to an installation with sound alarm blocks referenced 1 grouped around a loop on which is mounted in series at least one switching device 2, of the opening contact type, of a trip device .

Le déclencheur est par exemple à commande manuelle, de type bris de glace, comme indiqué plus haut, c'est éventuellement un déclencheur électriquement commandé, l'organe de commutation 2 étant alors un relais électro-magnétique ou un dispositif électronique, dans chacun des cas il comporte au moins deux bornes de commutation A et B qui sont électriquement reliées lorsque l'organe est dans un premier état normal de veille, ici symbolisé par un contact de relais fermé au repos, et qui sont susceptibles d'être électriquement isolées l'une de l'autre si l'organe est placé dans un autre état.The trigger is for example with manual control, of the glass breakage type, as indicated above, it is possibly an electrically controlled trigger, the switching member 2 then being an electromagnetic relay or an electronic device, in each of the case it comprises at least two switching terminals A and B which are electrically connected when the member is in a first normal standby state, here symbolized by a relay contact closed at rest, and which are capable of being electrically isolated l 'of each other if the organ is placed in another state.

Cet organe est placé en série dans une boucle qui est alimentée en courant par un générateur, tel que 3, et qui se referme au niveau d'un détecteur de courant, tel que 4, chargé de signaler toute interruption du courant parcourant la boucle.This member is placed in series in a loop which is supplied with current by a generator, such as 3, and which closes at a current detector, such as 4, responsible for signaling any interruption of the current flowing through the loop.

Une boucle peut bien entendu comporter plusieurs organes de commutation disposés en série au long de la boucle et usuellement répartis dans l'installation pour permettre un déclenchement de puis des emplacements différents, dans le cas d'une installation à déclenchement manuel d'alerte, toute ouverture de boucle par l'un des organes assurant bien entendu l'interruption du courant de boucle.A loop can of course include several switching members arranged in series along the loop and usually distributed in the installation to allow triggering from then different locations, in the case of an installation with manual alert triggering, any opening of the loop by one of the members ensuring of course the interruption of the loop current.

Plusieurs blocs d'alarme 1 sont également susceptibles d'être desservis par la même boucle à partir du moment où ils sont connectés en parallèle aux deux bornes A et B d'un même organe de commutation, comme montré sur la figure unique, ou aux bornes d'extrémité correspondantes d'un ensemble d'organes de commutation en série sur la même boucle , notamment dans le cas d'une installation à déclencheurs multiples.Several alarm blocks 1 are also capable of being served by the same loop from the moment they are connected in parallel to the two terminals A and B of the same switching device, as shown in the single figure, or to the corresponding end terminals of a set of switching members in series on the same loop, in particular in the case of a multi-trip installation.

Habituellement chaque bloc d'alarme 1 comporte un circuit 5 d'alimentation en énergie électrique destiné à être relié à une source extérieure qui est le plus souvent un réseau de distribution en courant alternatif.Usually each alarm unit 1 comprises a circuit 5 for supplying electrical energy intended to be connected to an external source which is most often an AC distribution network.

Pour des raisons de sécurité, un bloc d'alarme comporte aussi une source d'énergie interne 6, usuellement de type batterie d'accumulateurs, afin de permettre un fonctionnement autonome du bloc et en particulier des moyens d'alarme sonore 7, en cas d'interruption de l'alimentation réseau.For security reasons, an alarm unit also includes an internal energy source 6, usually of the storage battery type, in order to allow autonomous operation of the unit and in particular of the audible alarm means 7, in the event of network supply interruption.

Le circuit 5 et la source interne 6 sont connectés par un montage à diodes 8, connu, de manière à pouvoir se remplacer l'un l'autre pour assurer l'alimentation du bloc d'alarme 1 dont ils font partie et du générateur 3 de courant de boucle,sans, notamment, interruption significative de ce courant.The circuit 5 and the internal source 6 are connected by a diode assembly 8, known, so as to be able to replace one another to supply the alarm block 1 of which they are part and the generator 3 loop current, without, in particular, significant interruption of this current.

Un chargeur 9 permet la charge et le maintien de la charge de la source interne 6, lorsque cette source est de type batterie d'accumulateurs.A charger 9 allows charging and maintaining the charge of the internal source 6, when this source is of the storage battery type.

Une unité 10 de gestion est aussi incorporée dans chaque bloc, elle est par exemple organisée, de manière connue, autour d'un microcontrôleur 10M équipé de mémoires mortes et(ou vives non représentées, ainsi que d'une base de temps 10B afin d'assurer la commande des moyens sonores d'alarme 7 et de moyens auxiliaires 12, tels que des moyens de signalisation aptes à fournir des informations, notamment sur l'état du bloc et de la boucle à laquelle ce bloc est relié, par exemple à l'aide de voyants ou d'un afficheur à écran.A management unit 10 is also incorporated in each block, it is for example organized, in a known manner, around a microcontroller 10M equipped with read only and non-live memories, as well as a time base 10B in order to '' control the audible alarm means 7 and auxiliary means 12, such as signaling means capable of providing information, in particular on the state of the block and of the loop to which this block is connected, for example using indicators or a screen display.

Les moyens auxiliaires 12 sont souvent agencés pour permettre la commande d'un ou de plusieurs actionneurs simples, non représentés, par l'intermédiaire de l'unité de gestion 10.The auxiliary means 12 are often arranged to allow the control of one or more simple actuators, not shown, via the management unit 10.

Cette dernière est donc reliée par ses ports d'entrée-sortie au détecteur de courant 4 qui lui fournit des indications sur l'état de la boucle à laquelle le bloc est relié, à la source interne 6 et ici au chargeur 9 qui fournissent respectivement des indications sur les possibilités d'alimentation respectives du bloc par cette source et par le réseau.The latter is therefore connected by its input-output ports to the current detector 4 which provides it with information on the state of the loop to which the block is connected, to the internal source 6 and here to the charger 9 which respectively provide indications on the respective supply possibilities of the block by this source and by the network.

Elle est aussi reliée au moins par des sorties de commande aux moyens auxiliaires 12 évoqués plus haut et aux moyens d'alarme sonore qui comportent préférablement un transducteur électro-acoustique 7 usuellement attaqué via un montage électronique 13.It is also connected at least by control outputs to the auxiliary means 12 mentioned above and to the sound alarm means which preferably include an electro-acoustic transducer 7 usually attacked via an electronic assembly 13.

La base de temps 10B de l'unité de gestion permet notamment de fixer un certain nombre de temporisations, par exemple d'arrêt d'alerte après déclenchement.The time base 10B of the management unit makes it possible in particular to set a certain number of time delays, for example of alert stop after triggering.

Selon l'invention, la base de temps 10B d'un bloc est également exploitée en liaison avec le microcontrôleur 10M et avec le détecteur de courant de boucle 4 de ce bloc pour décoder des commandes produites sous forme impulsionnelle par exemple au niveau du ou de l'un des organes de commutation 2 en série d'une boucle.According to the invention, the time base 10B of a block is also used in connection with the microcontroller 10M and with the loop current detector 4 of this block to decode commands produced in impulse form for example at the level of or one of the switching members 2 in series with a loop.

Les mémoires du microprocesseur 10M contiennent alors des modules de logiciel permettant de reconstituer les commandes codées à partir des indications reçues du détecteur associé et de déclencher les actions correspondantes.The memories of the microprocessor 10M then contain software modules making it possible to reconstruct the coded commands from the indications received from the associated detector and to trigger the corresponding actions.

Un dispositif 14 générateur de commandes codées est alors associé à l'organe de commutation 2 choisi, c'est par exemple un générateur d'impulsions de commande qui est cadencé par une base de temps non représentée et qui agit sur l'organe de commutation de manière que celui-ci produise des variations du courant de boucle choisies pour être détectables par les détecteurs de courant des blocs desservis par une boucle, sans risquer d'être prises en compte en tant que rupture de boucle impliquant un déclenchement d'alerte.A device 14 for generating coded commands is then associated with the chosen switching member 2, it is for example a generator of command pulses which is clocked by a time base not shown and which acts on the switching member so that this one produce variations in the loop current chosen to be detectable by the current detectors of the blocks served by a loop, without risking being taken into account as a loop break involving an alarm triggering.

Dans une forme de réalisation simple, le dispositif 14 est programmé pour agir sur un organe de commutation 2 d'une boucle de manière à y déclencher des ouvertures de boucle dont la durée limitée est suffisante pour que ces ouvertures puissent être prises en compte par les détecteurs 4 reliés à la boucle, le microcontrôleur 10M associé à un détecteur dans un bloc étant programmé,de manière connue en soi, pour reconnaître avec l'assistance de la base de temps 10B de ce bloc, si une ouverture de boucle est d'une durée supérieure à un seuil de déclenchement d'alerte ou si plus courte elle est susceptible de correspondre à un élément d'un message correspondant à une commande codée prédéterminée.In a simple embodiment, the device 14 is programmed to act on a switching member 2 of a loop so as to trigger loop openings of which the limited duration is sufficient for these openings to be taken into account by the detectors 4 connected to the loop, the microcontroller 10M associated with a detector in a block being programmed, in a manner known per se, to recognize with the assistance of the time base 10B of this block, if a loop opening is of a duration greater than an alert triggering threshold or if shorter it is likely to correspond to an element of a message corresponding to a predetermined coded command.

Il est alors possible de transmettre des commandes codées différentes d'un dispositif 14 associé à un organe de commutation 2 vers les blocs reliés à la boucle dans laquelle est inséré cet organe de commutation, chaque commande étant par exemple codée par un nombre donné de ruptures de boucles successives de même durée déterminée en un laps de temps déterminé.It is then possible to transmit different coded commands from a device 14 associated with a switching member 2 to the blocks connected to the loop in which this switching member is inserted, each command being for example coded by a given number of breaks. successive loops of the same fixed duration in a determined period of time.

L'unité de commande de chacun des blocs recevant un message correspondant à une ou l'une des commandes codées prévues, par l'intermédiaire d'une boucle, assure alors le comptage du nombre d'ouvertures qui lui sont signalées par le détecteur 4 qui lui est associé et interprète ce comptage de manière à déclencher une action correspondante, prédéterminée.The control unit of each of the blocks receiving a message corresponding to one or one of the coded commands provided, by means of a loop, then counts the number of openings which are signaled to it by the detector 4 associated with it and interprets this count so as to trigger a corresponding, predetermined action.

Cette action est susceptible d'être de type sonnerie d'avertissement de début ou de fin de cours dans le cas d'une installation réalisée dans un établissement scolaire, de nombreuses autres actions peuvent être initiées de la même manière, telle que l'émission d'un message prédéterminé à destination de tout ou partie des personnes situées à portée sonore d'un transducteur électroacoustique 7, le message étant par exemple enregistré sous forme numérique dans une mémoire prévue dans l'unité de gestion 10, cette dernière étant alors dotée d'un décodeur numérique-analogique inséré dans ou en amont du montage électronique 13.This action is likely to be a warning bell at the start or end of the course in the case of an installation carried out in a school establishment, many other actions can be initiated in the same way, such as the emission a predetermined message intended for all or part of the persons located within sound range of an electroacoustic transducer 7, the message being for example recorded in digital form in a memory provided in the management unit 10, the latter then being provided with a digital decoder -analogical inserted in or upstream of the electronic assembly 13.

Une fonction d'auto-test peut également être déclenchée au niveau de chaque bloc afin de faciliter la supervision et en conséquence l'entretien de l'installation qui comporte de tels blocs.A self-test function can also be triggered at the level of each block in order to facilitate the supervision and consequently the maintenance of the installation which includes such blocks.

Selon une variante de réalisation, le dispositif 14 est un circuit susceptible de modifier significativement et pendant un temps déterminé la valeur du courant traversant l'organe de commutation 2 auquel il est associé de manière à produire des variations, par exemple cadencées de façon prédéterminée, du courant de boucle sans cependant interrompre ce dernier.According to an alternative embodiment, the device 14 is a circuit capable of significantly and for a determined time modifying the value of the current passing through the switching member 2 with which it is associated so as to produce variations, for example clocked in a predetermined manner, loop current without interrupting it.

Les blocs 1 desservis par la boucle, sur laquelle agissent ce dispositif 14 et l'organe de commutation associé, comportent alors des détecteurs 4 agencés de manière connue en soi, pour prendre en compte d'une part les interruptions de courant de boucle, d'autre part les variations de courant de boucle de valeur(s) prédéterminée(s), le choix des actions entre déclenchement d'alerte et l'une ou l'autre des actions spécifiées étant effectué par le microcontrôleur 10M de l'unité de gestion de chaque bloc en fonction de sa programmation et en liaison avec la base de temps 10B associée, la commande et le déclenchement d'alerte étant prioritairement assurés.The blocks 1 served by the loop, on which this device 14 and the associated switching member act, then comprise detectors 4 arranged in a manner known per se, to take into account on the one hand the loop current interruptions, d on the other hand, the loop current variations of predetermined value (s), the choice of actions between triggering of the alert and one or the other of the specified actions being carried out by the microcontroller 10M of the management of each block as a function of its programming and in connection with the associated time base 10B, the command and the triggering of alert being given priority.

Claims (4)

1/ Système de commande pour installation dotée de blocs (1) d'alarme sonore incendie associés selon une organisation en boucle(s), les blocs d'une boucle étant connectés en parallèle de part et d'autre d'au moins un organe de commutation (2) placé en série dans la boucle pour laquelle une alimentation en courant électrique est prévue, chaque bloc comportant un détecteur (4) de courant de boucle relié à une unité de gestion (10) chargée de la commande de moyens (7) électroacoustiques activés pour générer un signal d'alarme sonore en cas d'interruption de courant de boucle d'une durée supérieure à un seuil prédéterminé, caractérisé en ce qu'il comporte des moyens (14) associés à un organe de commutation d'une boucle pour générer des impulsions, sur la boucle, sous forme de suites correspondant à des commandes codées predéterminees, chaque bloc comportant des moyens pour reconstituer les commandes codées au niveau de l'unité de gestion (10) qu'il comporte à partir des variations créées par les impulsions sur la boucle telles qu'indiquées par le détecteur de courant de boucle, associé. 1 / Control system for installation fitted with blocks (1) associated fire alarms according to a loop organization (s), the blocks of a loop being connected in parallel on either side of at least one member switching device (2) placed in series in the loop for which an electrical current supply is provided, each block comprising a loop current detector (4) connected to a management unit (10) responsible for controlling the means (7 ) electroacoustics activated to generate an audible alarm signal in the event of a loop current interruption of a duration greater than a predetermined threshold, characterized in that it comprises means (14) associated with a switching device for a loop for generating pulses, on the loop, in the form of sequences corresponding to predetermined coded commands, each block comprising means for reconstituting the coded commands at the level of the management unit (10) which it comprises te from the variations created by the pulses on the loop as indicated by the associated loop current detector. 2/ Système de commande selon la revendication 1, caractérisé en ce que les moyens (14) pour générer des impulsions sur une boucle déclenchent de brèves ouvertures de cette boucle par l'organe de commutation (2) auquel ils sont associés. 2 / control system according to claim 1, characterized in that the means (14) for generating pulses on a loop trigger brief openings of this loop by the switching member (2) with which they are associated. 3/ Système de commande selon la revendication 1, caractérisé en ce que les moyens (14) pour générer des impulsions sur une boucle commandent des variations d'intensité du courant de boucle. 3 / control system according to claim 1, characterized in that the means (14) for generating pulses on a loop control variations in intensity of the loop current. 4/ Bloc d'alarme sonore pour système de commande selon la revendication 1, caractérisé en ce qu'il comporte des moyens pour reconstituer les commandes codées au niveau de l'unité de gestion (10) qu'il comporte à partir des variations créées par les impulsions sur la boucle telles qu'indiquées par le détecteur de courant de boucle qu'il incorpore et pour déclencher les actions correspondantes. 4 / Sound alarm block for control system according to claim 1, characterized in that it comprises means for reconstituting the coded commands at the level of the management unit (10) which it comprises from the variations created by the pulses on the loop as indicated by the loop current detector which it incorporates and to trigger the corresponding actions.
EP19930400535 1992-03-02 1993-03-02 Control system for device with autonomous blocks of sound alarm Expired - Lifetime EP0559554B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202459 1992-03-02
FR9202459A FR2688110A1 (en) 1992-03-02 1992-03-02 CONTROL SYSTEM FOR INSTALLATION WITH SELF-CONTAINED SOUND ALARM BLOCKS.

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EP0559554A1 true EP0559554A1 (en) 1993-09-08
EP0559554B1 EP0559554B1 (en) 1996-10-23

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WO1995016248A1 (en) * 1993-12-06 1995-06-15 Robert Bosch Gmbh A siren unit
FR2966963A1 (en) * 2010-10-28 2012-05-04 Cooper Technologies Co Fire protection installation for use in electric network of building, has monitoring units detecting isolation or continuity fault of line and communication bus, and signaling unit signaling fault status of bus and/or line to alarm center

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US4087803A (en) * 1976-01-27 1978-05-02 Vincent Dransfield Fire box alarm
EP0034562A2 (en) * 1980-02-18 1981-08-26 Hochiki Corporation Signal station for fire alarm system
EP0350049A2 (en) * 1988-07-06 1990-01-10 Kabushiki Kaisha Toshiba Method and system for generating alarm in automatic chemical analysis apparatus
WO1990001759A1 (en) * 1988-08-12 1990-02-22 Pioneer Data, Inc. Smoke detector with voice alert

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Publication number Priority date Publication date Assignee Title
US4087803A (en) * 1976-01-27 1978-05-02 Vincent Dransfield Fire box alarm
EP0034562A2 (en) * 1980-02-18 1981-08-26 Hochiki Corporation Signal station for fire alarm system
EP0350049A2 (en) * 1988-07-06 1990-01-10 Kabushiki Kaisha Toshiba Method and system for generating alarm in automatic chemical analysis apparatus
WO1990001759A1 (en) * 1988-08-12 1990-02-22 Pioneer Data, Inc. Smoke detector with voice alert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995016248A1 (en) * 1993-12-06 1995-06-15 Robert Bosch Gmbh A siren unit
US6005478A (en) * 1993-12-06 1999-12-21 Robert Bosch Gmbh Siren unit
FR2966963A1 (en) * 2010-10-28 2012-05-04 Cooper Technologies Co Fire protection installation for use in electric network of building, has monitoring units detecting isolation or continuity fault of line and communication bus, and signaling unit signaling fault status of bus and/or line to alarm center

Also Published As

Publication number Publication date
EP0559554B1 (en) 1996-10-23
DE69305551D1 (en) 1996-11-28
FR2688110B1 (en) 1994-08-19
DE69305551T2 (en) 1997-02-20
FR2688110A1 (en) 1993-09-03

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