EP1191497B1 - Dispositif et procédé pour vérifier un détecteur d'incendie - Google Patents

Dispositif et procédé pour vérifier un détecteur d'incendie Download PDF

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Publication number
EP1191497B1
EP1191497B1 EP01120069A EP01120069A EP1191497B1 EP 1191497 B1 EP1191497 B1 EP 1191497B1 EP 01120069 A EP01120069 A EP 01120069A EP 01120069 A EP01120069 A EP 01120069A EP 1191497 B1 EP1191497 B1 EP 1191497B1
Authority
EP
European Patent Office
Prior art keywords
gas
test
fire detector
testing
detector
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 - Lifetime
Application number
EP01120069A
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German (de)
English (en)
Other versions
EP1191497A2 (fr
EP1191497A3 (fr
Inventor
Joachim Schneider
Anton Pfefferseder
Bernd Siber
Andreas Hensel
Ulrich Oppelt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1191497A2 publication Critical patent/EP1191497A2/fr
Publication of EP1191497A3 publication Critical patent/EP1191497A3/fr
Application granted granted Critical
Publication of EP1191497B1 publication Critical patent/EP1191497B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits

Definitions

  • the invention is based on a device or a Method for testing a fire detector according to the species of the independent claims.
  • Fire alarms are cyclically on their Functionality checked.
  • US 5,670,946 discloses an apparatus for testing the Sensitivity of a smoke detector. From US 4,715,985 are known mixtures for testing of fire detectors.
  • the device according to the invention or the invention In contrast, methods for testing a fire detector have the advantage that for a fire alarm, the one Has smoke detector and at least one gas sensor, in One operation of the smoke detector and the at least one Gas sensor can be checked for their functionality. This simplifies the function test of the fire detector and accelerates. Furthermore, the invention provides Device a test device that provides all the stimuli for the existing sensors (smoke detector, gas sensor, Temperature sensor) of the fire detector provides.
  • the aerosol for the Smoke detector and the test gas for the at least one Gas sensor is located in separate gas cylinders in the inventive Device in front, so that individually the gases are interchangeable and storable.
  • Cross sensitivity of Gas sensors means that a gas sensor is not just for that Gas for which it is designed, a detection signal but also for other gases, with methanol, Ethanol and hydrogen are particularly suitable for this purpose. It is advantageous that hydrogen, which in the Generally hard to stock here for the Functional test by means of electrolysis from a Sodium sulfate solution is recovered to the hydrogen only to provide when needed.
  • the alcohols methanol and Ethanol also offers the possibility of being used as an aerosol too Act.
  • one Gas outlet opening on a temperature sensor of Fire detector is directed to the gas outlet a Lowering the temperature on the temperature sensor, which for a functional test of the temperature sensor can be used. This will then be three different measurement principles in one Operation on the fire alarm on their functionality checked out.
  • valves mechanically or electromechanically actuated wherein at an automatic operation temporal opening sequences are adjustable, for optimal simultaneous Check the smoke detector and the gas sensor as have proven advantageous. This can be especially the Optimize consumption of test gas and aerosol.
  • gas cylinders as Spray cans are formed, whereby the installation and the Use is greatly simplified.
  • a fire detector to be checked for its functionality, Has means to switch to a test mode and continue to have means to signal whether the Fire alarm works or not. It can in particular which sensor the smoke detector, the at least one gas sensor or the temperature sensor are functional or not. This is especially in To see a connection to a safety net by one Central is monitored and to which the to be checked Detectors are connected. The fire detector will then be in Test mode of the control panel signal whether the Functionality of existing sensors (smoke, gas, Temperature) is given or not.
  • the well-known LSN Local Safety network
  • FIG. 1 shows a first embodiment the device according to the invention
  • Figure 2 shows a second Embodiment of the device according to the invention
  • Figure 3 an example of a testing device
  • FIG. 4 shows the electrolysis unit
  • FIG. 1 shows a first embodiment of the invention Inventive device for checking a Fire detector.
  • a fire detector 2 is on a wall or ceiling 1 attached.
  • the fire detector 2 has a temperature sensor 25, a gas sensor 26 and a smoke detector 27.
  • the Smoke detector is here an optical measuring chamber, to the one labyrinthine corridor leads. That is a Scattered light smoke detector.
  • the fire detector 2 can also without Temperature sensor 25 and / or with multiple gas sensors be provided.
  • the temperature sensor 25, the gas sensor 26 and the smoke detector 27 are with the signal processing in Fire detector 2 connected so that detected detection signals and can be signaled.
  • the device according to the invention has a test pot 3, which is placed over the fire detector 2.
  • a housing 4 has gas cylinders 9 and 10 and valves 7 and 8 and On lines through which the aerosol and the at least one Test gas are passed into the test pot 3. Therefore, for the Gas bottle 9 a gas outlet opening 11 and for the Gas bottle 10, a gas outlet opening 12 is provided in protrude the test pot 3.
  • the gas cylinders 9 and 10 is the aerosol or the test gas under overpressure stored so that when you open the valves 7 and 8 the Aerosol or the test gas escape automatically.
  • the pressure in the gas cylinders 9 and 10 can also by the evaporation pressure of the aerosol or the Test gases arise.
  • the gas cylinders 9 and 10 are here as Spray cans executed.
  • the lines to the gas outlet openings 11 and 12 are each sealed at the holes through the test pot 3.
  • the housing 4 is attached to the test head 3.
  • the gas cylinder 9 in the housing 4 here has the aerosol, the Function test of the smoke detector 27 is used.
  • a valve 7 is attached, which determines the amount of outflowing aerosol through the gas outlet opening 11th certainly.
  • the valve 7 is via an electrical connection connected to a drive unit 6, which on the housing. 4 is appropriate.
  • the drive unit 6 controls the opening and Closing the valve 7.
  • the drive unit 6 is here programmable component, ie a processor, with corresponding signal processing for controlling the Valves and for the processing of control signals from sent to an operator of the device according to the invention become.
  • the gas cylinder 10 has a valve 8, which the escaping amount of the test gas that is in the gas cylinder 10, defined by the gas outlet opening 12. Also the valve 8 is connected to the drive unit 6 via a line electrically connected, so that the drive unit 6 the Opening the valve 8 regulates.
  • the inventive Device is fitted with a support rod 5 attached to the housing 4 is attached to the fire detector 2 held.
  • valves 7 and 8 via a mechanical Control to open and close. Can do this For example, corresponding mechanical tensile and Lever devices are used.
  • the drive unit 6 has an infrared receiver with an opto-electrical Transducer and receiver amplifier on to a remote control to be controlled. According to these Infrared signals are then controlled the valves 7 and 8. However, it is also a radio control of the drive unit 6 possible. Furthermore, it is possible that the drive unit 6 is mounted within the housing 4, wherein a Transmitting / receiving station for infrared signals outside the Housing 4 is located, or the drive unit 6 is through a window via the remote controllable.
  • the drive unit 6 is particularly suitable for the To control valves 7 and 8 in a timely manner. This is an advantage because those suitable for testing the smoke detector Aerosol density may be after a different period of time be reached, as it the appropriate gas concentration for the Gas sensor 26 is. In this case, the operator releases at the Control unit a program that opens and Closing the valves automatically controls. This also leads to a lower consumption of test gas and aerosol and thus increases the service life of a gas filling.
  • the aerosol has the effect of smoke, leaving one Smoke detector with the aerosol on its functionality can be checked. If the smoke detector 27 as with here a labyrinthine corridor through which the smoke passes must penetrate, then here is the aerosol through this penetrate labyrinth-like passage to enter the measuring chamber reach.
  • the functionality is the gas sensor 26 of the fire detector 2 checked.
  • the test gas can either be that of the gas sensor 26 to Detecting gas or another gas on the the gas sensor 26 also reacts with a detection signal. This behavior is called cross-sensitivity.
  • gases to which a gas sensor reacts cross-sensitively For example, gaseous methanol, ethanol, others Alcohols or hydrogen.
  • methanol and Ethanol should be noted that these alcohols are volatile are and thus relatively quickly in a gaseous state pass.
  • the outflowing Gas from the gas outlet openings 11 and 12 for Function test of the fire detector 2 located Temperature sensor 25 can be used.
  • FIG. 2 shows a second embodiment of the invention Inventive device for testing a fire alarm shown.
  • the fire detector 2 is attached to the wall 1.
  • the fire detector 2 has the temperature sensor 25, the Gas sensor 26 and the smoke detector 27.
  • Above that Fire detector 2 is the test head 3 of the invention Slipped device.
  • the test pot 3 protrudes the Gas outlet 11 in, now on both the Aerosol from the gas cylinder 9 and the test gas from the Gas cylinder 10 get into the test pot 3.
  • the gas cylinders 9 and 10 and the valves 7 and 8 are within the Housing 4, which is attached to the test head 3.
  • the housing 4 is still the drive unit 6, the Controls valves 7 and 8.
  • the housing 4 with the test head. 3 is held by the support rod 5, the self to the Housing 4 is attached.
  • the valves 7 and 8 leave so here both the test gas and the aerosol over a common lead to the gas outlet opening 11 arrive.
  • FIG 3 is a biespiel a Device for checking a Fire detector shown.
  • the fire detector 2 is turn on the wall 1 attached.
  • the fire detector 2 has the Temperature sensor 25, the gas sensor 26 and the smoke detector 27th on.
  • the test head 3 is slipped.
  • the housing 4 of the invention Device attached.
  • On the housing 4 is still the Holding rod 5 is fixed, with the inventive Device is held.
  • On the housing 4 is also the Evaluation unit 6 is mounted, the valve 7 within the Housing controls.
  • the valve 7 belongs to the gas cylinder 9, the includes both the aerosol and the test gas. These Gas mixture is then through the valve 7 to the Gas outlet opening 11 pass, in the test pot. 3 protrudes to the functional test of the fire detector 2 perform.
  • the aerosol can be a complex However, it is also possible an alcohol such as methanol, ethanol or propanol as Use aerosol and test gas simultaneously. It is then the rapid evaporation of these alcohols during the testing process note. It is important that enough alcohol is used as an aerosol in the measuring chamber of the fire detector 2 can get to a Cause detection signal.
  • an alcohol such as methanol, ethanol or propanol as Use aerosol and test gas simultaneously. It is then the rapid evaporation of these alcohols during the testing process note. It is important that enough alcohol is used as an aerosol in the measuring chamber of the fire detector 2 can get to a Cause detection signal.
  • FIG. 4 shows an electrolysis unit with which Hydrogen can be obtained as a test gas, which then as Test gas used for the gas sensor 26 of the fire detector 2 becomes.
  • a control unit 13 is provided with electrodes 16 and 17 respectively connected, which protrude into a vessel 18 and stand within a sodium sulfate solution 19.
  • the Control unit 13 is integrated here in the control 6. Alternatively, it is possible that the control 6 and Control unit 13 separate from each other, but electrically connected components are.
  • the electrolysis unit is instead of the gas bottle for the test gas in the housing 4th accommodated.
  • the positive pole and the other electrode is connected to the negative pole, so that a reduction or an oxidation can take place in each case which then on the one hand to a release of hydrogen in diatomic form and to oxygen also in diatomic form leads.
  • About the gas tubes 20 and 21 then get these gases from the vessel 18 to the outside, wherein on the gas pipe 20, a valve 15 is located, of the Control 13 is controlled and on the gas pipe 21 a Valve 14 is located, which is also from the controller 13th is controlled.
  • the released oxygen can be easily in the atmosphere will be spent while the released Hydrogen is passed as test gas in the test pot 3.
  • This device for electrolysis is in the housing. 4 housed instead of the gas cylinder 10. She has that Advantage that hydrogen does not have to be stored, but produced as needed.
  • the inventive method as Flowchart shown.
  • the Inventive device for checking the Fire detector slipped over the fire detector 2.
  • the Fire detector 2 is switched to a test mode, either by the tester, which has a magnetic Switch pressed when ejecting, or by the Central office, all for the inspection process to be checked Detector set to test mode.
  • the Fire detector 2 a communication block and a Processor to receive and access data from the control panel interpret.
  • the communication module then becomes too used to return the measurement results to the control center transfer.
  • process step 23 then the actual Functional test performed as shown above. It will both the aerosol for the function test of the smoke detector 27th as well as a test gas for the function test of the gas sensor 26 used and it will be the signaling signals of the Fire detector 2 checks whether the functionality is still given is.
  • an existing Temperature sensor 25 tested in the manner described above become.
  • the fire detector 2 can be with a center over be connected to this bus or a line Forward measuring results to the control panel.
  • the fire detector 2 means of signaling has, for example, a display or a speaker. About this means of signaling then the Functional capabilities of each sensor shown.
  • Process step 24 finally become these measurement results added.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Emergency Alarm Devices (AREA)

Claims (15)

  1. Dispositif pour contrôler un avertisseur d'incendie (2), lequel présente un avertisseur de fumée (27) et au moins un détecteur de gaz (26), ce dispositif présente en outre un godet de contrôle (3) pouvant être retourné par dessus l'avertisseur d'incendie (2), et une première bouteille de gaz (9) contenant un aérosol pour le contrôle du fonctionnement de l'avertisseur de fumée (27), cette première bouteille de gaz comportant une première soupape et une première ouverture de sortie de gaz (11), engagée dans le godet de contrôle (3),
    caractérisé en ce que
    le dispositif prépare au moins un gaz de contrôle pour l'au moins un détecteur de gaz (26) contenu dans le godet de contrôle (3), et il présente une deuxième bouteille de gaz (10) comportant une deuxième soupape (8) pour l'au moins un gaz de contrôle.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la deuxième bouteille de gaz (10) est raccordée à la première ouverture de sortie de gaz (11).
  3. Dispositif selon la revendication 1,
    caractérisé en ce que
    la deuxième bouteille de gaz (10) présente une deuxième ouverture de sortie de gaz (12).
  4. Dispositif selon une des revendications précédentes,
    caractérisé en ce qu'
    au moins un gaz de contrôle est du méthanol ou de l'éthanol.
  5. Dispositif selon la revendication 1,
    caractérisé en ce que
    le dispositif présente une unité d'électrolyse destinée à produire de l'hydrogène comme au moins un gaz de contrôle.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    l'unité d'électrolyse contient une solution aqueuse de sulfate de sodium.
  7. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    la première ouverture de sortie de gaz (11) est dirigée vers un capteur de température de l'avertisseur d'incendie (2).
  8. Dispositif selon une des revendications 1 à 7,
    caractérisé en ce que
    les première et deuxième soupapes (7, 8) peuvent être commandées par voie mécanique ou électromécanique.
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    le dispositif présente une unité de commande (6) pour la première et/ou la deuxième soupape (7, 8).
  10. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    les première et deuxième bouteilles de gaz (9, 10) sont des bombes à jet pulvérisé.
  11. Procédé de contrôle d'un avertisseur d'incendie, selon lequel le contrôle du fonctionnement d'un avertisseur de fumée de l'avertisseur d'incendie (2) est effectué avec un aérosol,
    caractérisé en ce que
    conjointement avec le contrôle du fonctionnement de l'avertisseur de fumée, on effectue un contrôle de fonctionnement d'au moins un détecteur de gaz de l'avertisseur d'incendie (2) à l'aide d'au moins un gaz de contrôle, et l'aérosol pour l'avertisseur de fumée ainsi que le gaz de contrôle du détecteur de gaz sont contenus dans des bouteilles de gaz séparées à l'intérieur d'un dispositif de contrôle de l'avertisseur d'incendie.
  12. Procédé selon la revendication 11,
    caractérisé en ce que
    l'aérosol et le gaz de contrôle sont projetés sur l'avertisseur d'incendie (2), soit simultanément, soit immédiatement l'un à la suite de l'autre.
  13. Procédé selon la revendication 11 ou 12,
    caractérisé en ce que
    pour le contrôle du détecteur de gaz (26), on utilise de l'hydrogène préparé par électrolyse.
  14. Procédé selon la revendication 11 ou 12,
    caractérisé en ce que
    pour le contrôle du détecteur de gaz, on utilise du méthanol ou de l'éthanol.
  15. Procédé selon les revendications 11 à 14,
    caractérisé en ce qu'
    on soumet un capteur de température de l'avertisseur d'incendie (2) à un contrôle de fonctionnement en abaissant la température à l'aide de l'aérosol pulvérisé sur le capteur de température et/ou du gaz de contrôle.
EP01120069A 2000-09-23 2001-08-21 Dispositif et procédé pour vérifier un détecteur d'incendie Expired - Lifetime EP1191497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10047194A DE10047194C1 (de) 2000-09-23 2000-09-23 Vorrichtung und Verfahren zur Prüfung eines Brandmelders
DE10047194 2000-09-23

Publications (3)

Publication Number Publication Date
EP1191497A2 EP1191497A2 (fr) 2002-03-27
EP1191497A3 EP1191497A3 (fr) 2003-07-09
EP1191497B1 true EP1191497B1 (fr) 2005-12-14

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EP01120069A Expired - Lifetime EP1191497B1 (fr) 2000-09-23 2001-08-21 Dispositif et procédé pour vérifier un détecteur d'incendie

Country Status (3)

Country Link
US (1) US6769285B2 (fr)
EP (1) EP1191497B1 (fr)
DE (2) DE10047194C1 (fr)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102006045055B3 (de) * 2006-09-21 2008-02-21 Micronas Gmbh Gasmeldeeinrichtung und Verfahren zum Überprüfen einer solchen
EP1903528A1 (fr) 2006-09-21 2008-03-26 Micronas GmbH Dispositif de mélange de gaz et procédé destiné à sa surveillance

Also Published As

Publication number Publication date
US6769285B2 (en) 2004-08-03
DE50108373D1 (de) 2006-01-19
EP1191497A2 (fr) 2002-03-27
EP1191497A3 (fr) 2003-07-09
US20020047782A1 (en) 2002-04-25
DE10047194C1 (de) 2002-03-07

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