EP2624228A2 - Détecteur d'incendie à interface homme-machine ainsi que procédé de commande du détecteur d'incendie - Google Patents

Détecteur d'incendie à interface homme-machine ainsi que procédé de commande du détecteur d'incendie Download PDF

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Publication number
EP2624228A2
EP2624228A2 EP12197630.2A EP12197630A EP2624228A2 EP 2624228 A2 EP2624228 A2 EP 2624228A2 EP 12197630 A EP12197630 A EP 12197630A EP 2624228 A2 EP2624228 A2 EP 2624228A2
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EP
European Patent Office
Prior art keywords
fire detector
fire
signal
user input
control device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12197630.2A
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German (de)
English (en)
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EP2624228B1 (fr
EP2624228A3 (fr
Inventor
Muhammed Ali Narin
Ulrich Oppelt
Bernd Siber
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
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Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP2624228A2 publication Critical patent/EP2624228A2/fr
Publication of EP2624228A3 publication Critical patent/EP2624228A3/fr
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Publication of EP2624228B1 publication Critical patent/EP2624228B1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • 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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/043—Monitoring of the detection circuits of fire detection circuits

Definitions

  • the invention relates to a fire detector with a fire sensor device for detecting a fire and for outputting a fire signal with an environmental sensor device for detecting bodies in the vicinity of the fire detector and for outputting an ambient signal and with a control device which in response to the fire signal, a normal state and an alarm state Fire alarm sets.
  • the invention also relates to a method for controlling the fire detector.
  • Fire detectors are used in private facilities, public areas or industrial environments to detect a fire in an environment early and to issue an alarm.
  • fire detectors comprise a housing with integrated sensors, which are designed to detect characteristic fire parameters. Since smoke or heat usually collects in the ceiling area of a room, it is customary to position the fire detectors on the ceiling.
  • fire detectors To ensure the functionality of the fire alarm, it must be installed uncovered and at a distance from objects in the area.
  • relevant application standards such as DIN VBE 0833-2 or DIN 14676, it is required that fire detectors be positioned in such a way that objects within their radius of 50 cm are not present which could impair proper functioning.
  • the publication DE 10 2009 047 531 A1 which is probably the closest prior art, describes a smoke detector with Ultraschallabdecküberwachung, the smoke detector next to a smoke detection sensor has at least one ultrasonic sensor which is arranged so that it emits ultrasound signals at least laterally and away from the ceiling or wall and reflected ultrasonic signals can receive and in this way can check if the environment is free of objects.
  • the fire detector according to the invention is designed to trigger an alarm in the event of a fire in its surroundings.
  • it is an automatic fire detector that can detect the fire on the basis of its characteristic fire characteristics.
  • characteristic fire characteristics e.g. Ambient temperature, smoke concentration, optical emissions of the fire.
  • the fire detector comprises a fire sensor device which is designed to detect a fire and to output a fire signal.
  • the fire sensor device has one or more sensors for detecting the characteristic fire parameters.
  • the fire sensor device comprises an optical or photoelectric smoke sensor which detects smoke as a characteristic fire parameter according to the scattered light method.
  • Such a sensor is, for example, in the cited above DE 10 2009 047 531 A1 disclosed. However, other sensor systems can also be used.
  • the fire detector comprises an environmental sensor device for detecting bodies in the vicinity of the fire detector and for outputting an ambient signal.
  • the environmental sensor device checks the environment of the fire detector and outputs in the presence of a body as a disturbing contour of a positive environmental signal.
  • the environmental sensor device particularly preferably outputs location information of the body, in particular distance information, that is to say the distance between the fire detector and the detected body and / or spatial angle information or partial space information in which spatial angle or partial space the body was detected.
  • the fire detector furthermore comprises a control device which sets a normal state and an alarm state of the fire detector as a function of the fire signal.
  • a control device which sets a normal state and an alarm state of the fire detector as a function of the fire signal.
  • the fire signal of the fire sensor device does not meet certain specifiable conditions, it is assumed that there is no fire and thus set the fire alarm in the normal state.
  • the fire signal is designed to detect a fire in the area, the fire alarm will be set to alarm.
  • an audible alarm signal is output and / or an alarm message is sent, e.g. via a network, in particular a security network, directed to a monitoring center, which can then take further action.
  • the fire detector is designed in addition to the function as a fire detector as a man-machine interface (MMI), wherein the control device checks whether the environment signal is to be regarded as a user input.
  • MMI man-machine interface
  • the environmental sensor device should not only detect interfering contours within the scope of its basic function, but rather, the fire detector should be designed such that a user selectively generates an ambient signal, in particular a positive ambient signal, in the Ambient sensor means may cause the controller to check that it is to be valued as user input, and that upon a positive check, the fire alarm is controlled by the user input.
  • the test is carried out, for example, on the basis of specifiable conditions which the environmental signal and / or the fire detector must meet.
  • the advantage of the invention is to be seen in that the environment sensor device receives a dual function. On the one hand, this is used - as already known - for the detection of interference contours.
  • the environmental sensor device is used to control the fire detector via the control device. For example, in the event of an alarm condition of the fire detector, a user can reset the alarm status - at least for a short time - by generating a positive ambient signal. Other possibilities for control operations by a user input via the ambient signal are still performed below.
  • the user input via the environmental sensor device is made contactless, so that the user does not physically have to contact the fire detector.
  • Often such fire detectors are attached to the ceiling and thus unreachable for normal people without aids.
  • the user in order to achieve user input in conventional fire detectors, the user must first provide an adjunct such as e.g. a ladder or a chair, get and then can only operate the fire alarm.
  • the environmental sensor device when using the environmental sensor device as part of the man-machine interface, it may be sufficient to cause the positive environmental signal from a certain distance from the fire detector and thereby make the user input.
  • optical sensors for example in the infrared range, or according to the reflection principle, ie microwave sensors, can be used as sensors for the environmental sensor device.
  • ultrasonic sensors The function of the detection of bodies and the distance measurement by means of ultrasound is carried out by determining the transit time and is known for example from reversing sensors or parking aids of motor vehicles based on ultrasonic sensors.
  • Both Ultrasonic sensors are emitted a transmit pulse (burst) and receive the reflected signal from the body. From the duration of the signal from sending to receiving is on the one hand on the existence of the body and on the other hand closed the distance of the body to the fire detector.
  • burst transmit pulse
  • control device is designed, in particular, by programming technology and / or circuitry, to evaluate the ambient signal as a user input when the ambient signal changes during the alarm state.
  • the ambient signal is interpreted as a user input, namely that the fire detector is set in the alarm state and that the ambient signal changes.
  • the change of the ambient signal can z. B. represent a coding of the environmental signal. So it is possible, for example, that the ambient signal must be changed regularly so that it is considered as user input. Furthermore, it is possible that the environment signal must be changed according to a predeterminable pattern in order to evaluate it as a user input. For example, a user could change the surround signal to provide a Morse sign in the surround signal.
  • the control device is designed so that upon re-detection of a body in the environment during the alarm state, the environment signal is counted as a user input.
  • the ambient signal is interpreted as a user input, namely, that the fire detector is set in the alarm state and that the environmental signal results in the re-detection of the body.
  • a user it is possible for a user to go to the fire detector during the alarm condition, where the presence of the user is the re-detection of the body, and the overall operation is considered user input.
  • control device it is possible for the control device to be designed to evaluate the ambient signal as a user input when a body or a body moves along a movement path in the vicinity of the fire detector as a condition.
  • a condition could be that the user walks around the fire detector once. Such a condition would preclude a misjudgment of the controller with high certainty.
  • the movement path of the body requires an active or a dependent movement of the body, so that the control device evaluates the resulting ambient signal as a user input.
  • a dependent movement of the body is e.g. To understand a movement that results in an increase in the potential energy of the body or that has a frequent change in the height position.
  • Under an active movement z. B. understood a movement that has a frequent change in the movement speed or the direction of movement.
  • a condition may be designed so that the ambient signal is caused by a user waving.
  • Other trajectories which differ significantly from possible trajectories of objects in a room in a fire, can be used. Such trajectories can not take place without an interaction of the user, so that such a condition would preclude a false evaluation of the control device with high security.
  • the control device is designed to evaluate only one ambient signal from a subspace area in the vicinity of the fire detector as a user input.
  • a condition for evaluation as an environment signal as user input is thus that the environment signal must be caused by an interaction of the user in the subspace area.
  • the partial space area is designed as a partial angle area, so that the user must perform an interaction for generating the ambient signal in the partial angle area.
  • the subspace area is a range of distance, where the user initiates the action to cause the subspace Environmental signal must be performed at a certain distance or in a certain distance range to the fire detector.
  • the user input is configured as a reset signal to reset the alarm condition of the fire detector.
  • the alarm state is reset permanently and in particular to the normal state, or that the alarm state is reset to an intermediate state, which is e.g. Takes 30 seconds and then returns to the alarm state or is reset to the normal state.
  • the user it is thus possible for the user to change the alarm status of the fire detector via the ambient signal, in particular to deactivate it temporarily or permanently.
  • this form of embodiment can be used when e.g. there is a false alarm and the user wants to quickly end the alarm condition.
  • the control device is designed to set an operating state and a fault state of the fire detector as a function of the ambient signal, wherein the user input is designed as a service signal in order to reset the fault state of the fire detector.
  • the ambient signal is first used by the control device in order to detect whether disturbing contours are arranged at a predeterminable distance of, for example, 50 cm.
  • interference contours can limit the reliability of the fire alarm or are not formally permitted by corresponding standards. If interference contours are present, the fire detector is set from an operating state to a fault state, wherein in the fault state, for example, an optical signal or an acoustic signal is output from the fire detector.
  • the fault state can be transmitted via the network described in the introduction to a monitoring center.
  • the fault state it is now possible to reset the fault status of the fire alarm via the fire detector as a human-machine interface and optionally reset the fire alarm in the operating state or put back into an intermediate state, for example, to eliminate the disturbance, in particular the interference contour.
  • Another object of the invention relates to a method for controlling the fire detector, as described above or according to one of the preceding claims, wherein a user causes an environment signal by interacting with the environment sensor means and the thus generated ambient signal is checked by the control device, whether Ambient signal is to be regarded as a user input.
  • the method includes the intended use of the fire detector, as described above.
  • the FIG. 1 shows highly schematically a fire detector 1 as an embodiment of the invention, which is mounted on a ceiling 2 of a room - generally called environment.
  • the fire detector 1 is designed for the detection of fire and has a fire sensor device 3, which includes, for example, a smoke sensor according to the scattered light principle.
  • a smoke sensor has a transmitting device and a receiving device, wherein the transmitting device emits an optical signal so that it does not directly incident in the receiving device.
  • the fire sensor device 3 provides a fire signal from the fire sensor.
  • the fire detector 1 further comprises a control device 4, to which the fire signals are transferred and which can switch the fire detector 1 from a normal state to an alarm state or in the opposite direction. Normally, the fire detector 1 is in a normal state.
  • a fire signal is generated by the fire sensor device 3, which is indicative of a characteristic fire characteristic, such as a fire hazard. Smoke, closes evaluates the control device 4, the fire signal and sets the fire detector 1 to the alarm state.
  • the control device 4 can - depending on the embodiment - with an acoustic signal generator 5, such. a siren to be connected, which is integrated in the fire detector 1 and emits an alarm tone, or be connected via a network 6 with a monitoring center, not shown, to which the state, in particular the normal state or the fire condition of the fire detector 1 are transmitted.
  • an acoustic signal generator 5 such. a siren to be connected, which is integrated in the fire detector 1 and emits an alarm tone, or be connected via a network 6 with a monitoring center, not shown, to which the state, in particular the normal state or the fire condition of the fire detector 1 are transmitted.
  • the fire sensor device 3 can also comprise further sensors for the detection of characteristic fire parameters or, instead of the smoke detector described, have another sensor for the detection of characteristic fire parameters.
  • the fire detector 1 has an environmental sensor device 7, which is formed from a plurality of ultrasonic sensors 8, the transmission and reception range extending into different, in this embodiment, however, overlapping, solid angle ranges.
  • the solid angle regions form monitoring regions 9 of the ultrasonic sensors 8.
  • the environmental sensor device 7 is designed to detect bodies K in the solid angle regions 9 and to output an environmental signal to the control device 4. If a body K is detected in one of the monitoring areas 9, the ambient signal contains information about the existence of the body as well as its distance d from the detecting ultrasonic sensor 8.
  • the control device 4 evaluates the ambient signal of the environmental sensor device 7 and sets in conventional embodiments, an operating condition for the fire detector 1, as far as at a distance D to the fire detector 1 no body K were detected as Störkonturen. If a body K within the distance D detected during the evaluation of the environmental signal, the fire detector 1 is set to fault condition. In the fault condition, a warning signal is optionally output via the acoustic signal transmitter 5, output via an optical signal transmitter 10, an optical signal or transmitted via the network 6, the fault state to the fire control center.
  • this forms part of a human-machine interface, which makes it possible for a user to make a user input to the control device 4 of the fire detector 1, so that the fire detector 1 converts an additional function.
  • the control device 4 is designed to check the ambient signal of the environmental sensor device 7 as to whether the ambient signal is to be regarded as a user input. In order to distinguish between an interference contour and a user input, different conditions can be checked in the control device 4, which are shown below.
  • the control device 4 may be designed so that at least one, some or all of the following conditions must be met in order to evaluate the ambient signal as a user input.
  • the control device 4 may be configured such that any selection of the following conditions must be fulfilled.
  • a first possible condition relates to the message state of the fire detector 1.
  • this condition it is checked whether the fire detector 1 is in a normal state or in an alarm state.
  • an environmental signal can only be considered user input if the fire detector 1 is in an alarm condition.
  • This condition is based on the consideration that it is quite common for the environmental sensor device 7 to detect a body and to output a corresponding ambient signal when the fire detector 1 is in a normal state.
  • Once the fire detector 1 is switched to an alarm condition it is assumed that an environment signal indicating a body in the monitoring area 9 is due to an interaction of the user with the environment sensor means 7 and therefore is to be considered as a user input.
  • a third possible condition it is checked whether it is possible to derive from the ambient signal a movement of one or of the body along a movement path in the vicinity of the fire detector 1. If such a trajectory detected, the ambient signal is considered as a user input. In particular, it can be checked whether the movement path of the body corresponds to a predetermined trajectory or predetermined criteria for the trajectory. On the one hand, this makes it possible to exclude trajectories from interfering contours, since, for example, an "unnatural", dependent or active movement of the body is required in the trajectory.
  • a criterion for the trajectory may be a movement of the body against gravity, so that in a fire objects falling over, such as cabinets, etc., do not lead to a rating as user input.
  • a trajectory of the body can eg also be a regular wave or another trajectory that a body does not perform automatically.
  • a fourth condition it is checked whether the environment signal is generated by a body in a partial space area in the environment. Only when the body in the subspace region has caused the ambient signal, the environmental signal is counted as a user input.
  • the environment may, for example, be divided into four quadrants I-IV, with only environmental signals generated in one of the quadrants I-IV by a body being counted as user input.
  • a body it is conceivable, for example, for a body to have to carry out a movement path through several or all quadrants according to arrow 13, so that the environment signal is evaluated as a user input.
  • only ambient signals that are due to a body in the central monitoring area 9 (FIG. FIG. 1 , Middle) are considered to be a user input.
  • the FIG. 3 shows a schematic side view of the environment and the fire detector 1, wherein schematically a distance range 14 is defined as the subspace area.
  • the distance region 14 begins, for example, with a distance d1 from the fire detector 1, which is greater than the distance that is usually used to detect an interference contour and thus greater than 50 cm, preferably greater than 70 cm, is.
  • the distance region 14 is limited at a distance d2, so that the distance region 14 to the outside, for example, with a distance d2 less than 1.20 m, preferably not limited to 1 m.
  • This definition of the subspace area is based on the consideration that usually no interference contour is to be expected in the distance region 14, so that an interaction by a user 15 is to be inferred in the case of a positive environment signal.
  • the user 15 can penetrate into the distance region 14 with one hand and generate the corresponding ambient signal there. For example, connect the two conditions according to FIG. 2 and FIG. 3
  • the distance range 14 is limited to a quadrant area II, so that an interaction of the user 15 with the environmental sensor device 7 for generating an environmental signal, which is to be considered as a user input is limited to this narrow subspace area.
  • the user input may, for example - if the fire detector 1 is in the alarm state - lead to a reset of the alarm state to the normal state. This can advantageously be used when the fire detector 1 has a false alarm, so that this, without the user 15 must mechanically operate the fire detector 1, can be reset.
  • An alternative or supplementary embodiment provides that the user input leads to the reset of the fault condition of the fire detector 1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Fire Alarms (AREA)
EP12197630.2A 2012-02-03 2012-12-18 Détecteur d'incendie à interface homme-machine ainsi que procédé de commande du détecteur d'incendie Active EP2624228B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012201589A DE102012201589A1 (de) 2012-02-03 2012-02-03 Brandmelder mit Mensch-Maschinen-Schnittstelle sowie Verfahren zur Steuerung des Brandmelders

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EP2624228A2 true EP2624228A2 (fr) 2013-08-07
EP2624228A3 EP2624228A3 (fr) 2017-03-08
EP2624228B1 EP2624228B1 (fr) 2018-05-30

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US (1) US8872648B2 (fr)
EP (1) EP2624228B1 (fr)
DE (1) DE102012201589A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765566A3 (fr) * 2013-02-08 2014-11-05 SCHAKO Klima Luft Ferdinand Schad KG Détecteur de fumée
DE102015004458A1 (de) 2014-06-26 2015-12-31 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
WO2018050461A1 (fr) * 2016-09-15 2018-03-22 Siemens Schweiz Ag Détecteur de fumée, système à détecteur de fumée et procédé de surveillance d'un détecteur de fumée

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US20150235539A1 (en) * 2014-02-18 2015-08-20 Etón Corporation Multi-functional device having at least the ability to detect the presence of a substance
US9418528B2 (en) * 2014-06-20 2016-08-16 Haier Us Appliance Solutions, Inc. Oven appliance with cavity fire detection
DE102016226133A1 (de) 2016-12-23 2018-06-28 Robert Bosch Gmbh Sender-Empfänger-Vorrichtung, Meldemodul, tragbares Elektronikmodul, Verfahren zum berührungslosen Deaktivieren eines Alarmzustandes eines Meldemoduls und Computerprogramm
EP3813032A1 (fr) 2019-10-25 2021-04-28 Carrier Corporation Détection d'incendie adaptative
GB2616858A (en) * 2022-03-21 2023-09-27 Fireangel Safety Tech Limited Safety alarm

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765566A3 (fr) * 2013-02-08 2014-11-05 SCHAKO Klima Luft Ferdinand Schad KG Détecteur de fumée
DE102015004458A1 (de) 2014-06-26 2015-12-31 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
WO2018050461A1 (fr) * 2016-09-15 2018-03-22 Siemens Schweiz Ag Détecteur de fumée, système à détecteur de fumée et procédé de surveillance d'un détecteur de fumée

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EP2624228B1 (fr) 2018-05-30
DE102012201589A1 (de) 2013-08-08
US20130201017A1 (en) 2013-08-08
EP2624228A3 (fr) 2017-03-08
US8872648B2 (en) 2014-10-28

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