WO2013060776A1 - Système de détection d'incendie avec contrôle de signal d'alarme ainsi que procédé d'alarme d'un incendie - Google Patents

Système de détection d'incendie avec contrôle de signal d'alarme ainsi que procédé d'alarme d'un incendie Download PDF

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Publication number
WO2013060776A1
WO2013060776A1 PCT/EP2012/071153 EP2012071153W WO2013060776A1 WO 2013060776 A1 WO2013060776 A1 WO 2013060776A1 EP 2012071153 W EP2012071153 W EP 2012071153W WO 2013060776 A1 WO2013060776 A1 WO 2013060776A1
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WO
WIPO (PCT)
Prior art keywords
fire
alarm
network
message
distance measure
Prior art date
Application number
PCT/EP2012/071153
Other languages
German (de)
English (en)
Inventor
Andreas SPEICH
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 WO2013060776A1 publication Critical patent/WO2013060776A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0266—System arrangements wherein the object is to detect the exact distance between parent and child or surveyor and item

Definitions

  • the invention relates to a fire alarm system with a plurality of
  • Fire alarms which have a detection device for detecting a fire and a signal device for outputting an alarm signal, wherein the plurality of fire detectors are connected to each other via a network signal technically and wherein the fire detectors are adapted to send an alarm message in the detection of a fire in the network, to inform the other fire detectors about the fire, the fire detector detecting the fire being called the first trigger.
  • the invention also relates to a method for reporting a fire.
  • Fire alarms are used to trigger an alarm in the event of a fire and are usually used in private houses, public buildings, factories, etc. A distinction is made between automatic fire detectors, which can detect a fire and issue the alarm, and manual fire detectors, which must be operated by hand, to alarm
  • a fire alarm is directly associated with a siren, so that when a fire is detected or reported and an alarm is issued, a siren sound can be generated directly to warn people in the area of the fire alarm.
  • the fire detectors can be designed as stand-alone devices, which can autonomously control only one room or a very limited surveillance area. It is also known to have a plurality of fire detectors For example, to route an alarm to a fire alarm center to take appropriate security measures.
  • a fire alarm system which has a plurality of fire detectors and which is suitable and / or designed for the detection and / or reporting of a fire.
  • the fire detectors point
  • a detection device for detecting a fire in particular in each case a detection device for detecting a fire.
  • a detection device for detecting a fire are thus in particular automatic fire detectors.
  • the fire alarm system according to the invention has exclusively automatic fire detectors.
  • the fire alarm system according to the invention by manual
  • Fire detector is supplemented without detection devices or other components.
  • the detection device of the fire detector comprises at least one sensor for detecting fire characteristics, in particular fire emissions.
  • the sensor can be implemented, for example, as a fire gas or smoke gas detector and measure the concentration of carbon monoxide or carbon dioxide.
  • the sensor Formed as a heat detector, the sensor detects a room temperature, whereby when a maximum value is exceeded, a fire is detected.
  • the sensor In the training as a smoke detector, the sensor detects smoke, the sensor, for example, as an optical or photoelectric sensor, Ionisationssensor etc. may be formed. Other sensors for detecting a fire are possible.
  • each of the fire detectors comprises a signaling device which is designed to output an alarm signal.
  • the alarm signal is such that it can be perceived by persons in the area of the fire alarm system and / or the fire alarm issuing the alarm signal.
  • the majority of fire detectors are within the fire alarm system via a
  • Network signal technically connected.
  • communications between the fire detectors can be transmitted via the network.
  • the network in the simplest embodiment of the invention, the network as a
  • each fire detector with any other fire detector, especially within its radio range, can communicate. Messages from one fire detector to another fire alarm can be transmitted in one direction only or bidirectionally.
  • the network is in particular designed so that, starting from a fire alarm messages can be sent to all available fire detectors.
  • the network is formed as an organized network whose structure is known, so that the messages z. B. be sent using network addresses to the other fire detectors.
  • the fire detectors are program-technically and / or circuit-wise designed to send an alarm message as a message to the network when a fire is detected in order to inform the other fire detectors about the fire.
  • the fire detector on a network interface, which in the example of the wireless network as a radio interface, in others
  • Networks can be configured as a wired network interface.
  • the alarm message for persons in the field of fire detection system or the fire alarm is imperceptible.
  • the fire detector detecting fire is referred to as the initial release.
  • the first trigger sends the
  • the fire detectors are designed to determine a distance measure to the first trigger based on the alarm message from the network or a forwarded alarm message from the network and to form the alarm signal in dependence on the distance measure.
  • each of the fire detectors is preferably designed programmatically and / or circuit-wise, either the alarm message of the first timer or a forwarded alarm message from the network, on the
  • Alarm message of the first trigger is based to receive.
  • the fire detectors have a receiving interface, in particular as part of
  • Network interface so for example a radio reception interface or a network reception interface.
  • the fire detectors issue the alarm signal via their signaling device.
  • the distance measure may be a geometric distance to the first trigger.
  • an alternate size to the geometric distance may be selected.
  • the evaluation of a signal strength of the signal of the alarm message form a basis for the determination of the distance measure, wherein the distance measure is assumed the greater, the lower the signal strength. Further possibilities for determining the distance dimension are described in the preferred embodiments of the invention.
  • the fire detectors determine the distance measure locally and / or independently.
  • the fire detectors are also designed to shape the alarm signal in dependence on the distance measure.
  • alarm signals differ from each other, which are based on different distance measures.
  • the advantage of the invention lies in the fact that due to the different alarm signals, which on the different distance measures to the
  • the fire detectors or the fire alarm system are designed such that at least three, preferably at least four and in particular at least five
  • Alarm signals are achieved in an advantageous manner that a person can get along in the field of fire detection system and in particular receives graded information about the distance and direction of the fire on the alarm signals.
  • the different alarm signals are designed such that they include information about a fire direction and / or an escape direction for a person in the area of the fire alarm system.
  • the alarm signal comprises an alarm light for
  • the alarm light of the first trigger is shaped as a continuous light and the alarm lights of the other fire detectors flash, the flashing frequency is selected the higher, the smaller the distance measure.
  • the color of the alarm light is formed depending on the distance measure, so that the Clearanmelder emits a red alarm light and represent the other fire detectors with increasing distance measure with the alarm lights a color transition from red to green.
  • the alarm signal comprises an alarm sound, wherein the signal device is realized in particular as a siren.
  • the alarm sound is designed as a sound audible to persons and may be formed, for example, as a howling sound or beep.
  • the alarm sound is formed as a function of the distance measure, so that in
  • the different alarm tones have, for example, different tone frequencies (high tone, low tone), different touch lines (also called control degrees) and give the ratio of the pulse duration to the pulse period duration for a periodic sequence of pulses, for example according to DIN IEC60469-1 on), different ratios between pulse duration to pause duration, etc. on. Such differences can be heard for people, so that information about the distance measure by the
  • the distance measure is the distance measure
  • the fire alarm system is analogously designed so that the first timer outputs a continuous tone as alarm sound, at least one fire alarm with a first distance measure a quick staccato, at least one fire alarm with a second distance measure a slow staccato outputs, the second distance measure is greater than the first distance measure is.
  • the continuous tone indicates the direction of the fire and the slow staccato indicates the direction of escape.
  • Fire detection system can thus bring by exploiting the information encoded in the alarm sounds to safety by the person moves away from the continuous tone and moves in the direction of slow staccato.
  • the distance measure various further possibilities are possible within the scope of the invention:
  • the alarm message contains an absolute address or an absolute ID of the first trigger, the others
  • Fire detectors determine the distance measure by comparing the absolute address from the alarm message and the own absolute address or
  • Fire detection system is divided like a chessboard, each fire detector is assigned to a field of the chess board (for example, a1, b4, etc.). Knowing the absolute address of the first release and the own address can be a distance as a distance measure between the fire detector and the chess board (for example, a1, b4, etc.). Knowing the absolute address of the first release and the own address can be a distance as a distance measure between the fire detector and the
  • the network is wireless and the alarm message is transmitted by radio, the others
  • Fire detectors determine the distance measure by evaluating a signal strength with the alarm message when receiving.
  • the distance measure does not correspond to the geometric distance between the fire detector and the first timer, since, for example, via intermediate walls or other structural interference contours also the signal strength is reduced. In very simple embodiments of the invention, however, this system is simple and reliable
  • the fire detectors are designed to receive the alarm message from the network and forward it in the network.
  • the fire detectors use a repeater function so that even large surveillance areas can be covered by the fire alarm system. Second, it ensures that all fire detectors - including fire detectors in dead spots, etc. - the
  • Alarm message received safely when forwarding the alarm message, a counter is increased in the alarm message, so that from the forwarded alarm message the number of forwarding fire detectors can be detected, the distance measure is determined on the basis of the counter. Thus, if a fire alarm receives an alarm message in which the counter is set to 4, the distance measure is greater than for a counter with the counter value 2.
  • the current fire alarm takes over at a plurality of incoming alarm messages, the distance measure an alarm message with the lowest counter value, as this alarm message has chosen the shortest path between the first trigger and the current fire alarm.
  • Another object relates to a method for reporting a fire with a fire alarm system, as described above, wherein a
  • Fire alarm as an initial trigger sends an alarm message to the network, with a second fire alarm the alarm message or one on the
  • Alarm message based forwarding alarm message receives, a first distance measure determined and based on the first distance measure based
  • Alarm signal outputs and wherein a third fire alarm receives the alarm message or based on the alarm message, forwarded alarm message determines a second distance measure and forms based on the second distance measure a second alarm signal, wherein the first and the second alarm signal are formed differently.
  • Figure 1 is a schematic block diagram of a fire alarm system as a first embodiment of the invention
  • Figure 2 is an illustration for explaining the operation of the
  • FIG 3 shows the fire alarm system in Figure 1 with a radio-based
  • Figure 4 shows the fire alarm system in Figure 1 in a modified
  • FIG. 5 shows the fire alarm system in FIG. 1 in a further modified embodiment.
  • the fire alarm system 1 shows a schematic block diagram of a fire alarm system 1 as an embodiment of the invention.
  • the fire alarm system 1 comprises a plurality of fire detectors 2, which are distributed in a monitoring area of the fire alarm system 1.
  • the fire alarm system 1 is, for example, in a widely branched building complex, e.g. arranged in a manufacturing facility, in a public building, etc., wherein the fire detectors 2 are distributed within this building complex.
  • the fire detectors 2 each comprise a siren device 3 for outputting an alarm tone and a detection device 4 for detecting a fire.
  • the fire detectors 2 are designed to detect a fire via their detection device 4 and to output an alarm sound via the signal device 3.
  • the detection devices 4 can fire after any
  • the fire detectors 2 are also called automatic
  • Each of the fire detectors 2 further comprises an interface 5, which is a
  • the fire detector 2 are designed so that in the detection of a fire on the detection device 4 on the one hand, an alarm sound from the
  • Signaling device 3 is output and on the other an alarm message via the interface 5 is placed in the network 6.
  • the other fire detectors 2, which are connected to the network 6, receive one or the
  • Alarm message from the network 6 and also give an alarm sound in response to the receipt of the alarm message from the signaling device 3.
  • not all fire alarms 2 in the fire alarm system 1 emit the same alarm sound. Rather, the alarm sound is dependent on a
  • the distance measure is a relative measure of a distance between the two
  • Fire detectors 2 forms.
  • FIG. 1 An exemplary embodiment for the output of different alarm tones is shown in FIG. 1
  • a fire 7 is arranged.
  • the fire detector 2 is also referred to as the initial release I, since it detects the fire 7 in the fire alarm system 1 as the first fire detector 2.
  • an alarm sound A 1 is output from the signal device 3 of the first release I.
  • the alarm sound A1 is a continuous tone which begins at a time t0 after the detection of the fire 7.
  • an alarm message is transmitted to the central fire detector 2 via the interface 5 and the network 6, the
  • second trigger II hereinafter referred to as second trigger II.
  • the second trigger II receives the alarm message directly from the
  • the alarm message from the second trigger II is forwarded to the fire detector 2 shown on the right, which is referred to below as the third trigger III.
  • the distance measure between the first trigger I and the second trigger II is greater than the distance measure between the first trigger I and the third trigger III, wherein the distance measure is acoustically encoded as information in the alarm sound by the gradation continuous tone A1 - fast staccato A2 - slow staccato A3.
  • the different alarm tones A1, A2 and A3 can clearly distinguish a person in the area of the fire alarm system 1, so that this person is informed about a fire direction, namely in the direction of the continuous tone A1, and via an escape direction, namely in the direction of the slow staccato A3 ,
  • fire alarm system 1 is not limited to third-party trigger III, but in addition also four-trigger, fifth trigger etc.
  • the alarm sounds are formed in an analogous manner.
  • FIGS. 3, 4 and 5 Possible embodiments for the determination of the distance measure are shown in FIGS. 3, 4 and 5:
  • FIG. 3 again shows the fire alarm system from FIG. 1, the first release I being shown on the left side. This sends via the network 6, designed as a wireless network, alarm messages to all other fire detectors 2. After the fire detector 2 but a
  • the fire detectors 2 shown in the middle receive the alarm message with a
  • Intensity 11 or 12 which is about the same.
  • these fire detectors 2 are classified as a second release II and give a fast staccato A2, as shown in the middle of Figure 2 from.
  • the fire detector 2 arranged on the right in FIG. 3 receives the alarm message with a signal strength 13 which is lower than the signal strengths I 1 and I 2 and is therefore referred to as
  • Third trigger III classified and gives an alarm tone according to A3 in Figure 2 from.
  • the distance measure increases the less the signal strength of the alarm message is at the receiver.
  • the distance measure is not to be understood as a geometric length measure, but as a measure of length for the radio path.
  • FIG 4 shows another embodiment of the fire system 1 is shown, wherein the alarm messages from the fire detector 2 shown on the left as the first trigger I is transmitted again via radio or alternatively via a wired network.
  • the alarm message carries a counter and the fire alarm 2 also work as a repeater, that is, they receive the alarm message and forward it.
  • the fire alarm 2 also work as a repeater, that is, they receive the alarm message and forward it.
  • the fire detector 2 the alarm message with a
  • Counter value 1 are classified as a second trigger II.
  • Counter value n 2 obtained, classified as third trigger III.
  • Alarm message with the counter value N 3 receives.
  • the fire detector 2 is again classified as a third trigger III, since it is assumed that the shortest transmission path with the lowest counter value.
  • the dimensioning of the distance measure thus the minimum number of nodes of the signal path is used, which has crossed the alarm message, starting from the first trigger I.
  • FIG. 5 shows a further possible embodiment of the invention, wherein it is shown by way of example that the area of the fire alarm system 1 is divided into a checkerboard pattern.
  • the first trigger I sends its own absolute address, in this case a2, in addition to the alarm message or as an attachment into the network 6.
  • the fire detectors in the quadrant b3 and c1 can determine a distance measure to the first trigger I, wherein the
  • the fire detectors 2 may also have a warning light device, which forms an alarm light, wherein the alarm light is shaped in an analogous manner as the alarm sound to the

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  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)

Abstract

L'invention concerne un système de détection d'incendie (1) pourvu d'une pluralité de détecteurs d'incendie (2) qui comportent un dispositif de détection (4) servant à la détection d'un incendie (7) et un dispositif de signal (3) servant à émettre un signal d'alarme (A1, A2, A3). La pluralité de détecteurs d'incendie (2) sont reliés entre eux par l'intermédiaire d'un réseau (6) selon une technique de transmission de signaux. Les détecteurs d'incendie (2) sont réalisés pour émettre un avis d'alarme en cas de détection d'un incendie dans le réseau (6) afin d'informer les autres détecteurs d'incendie (2) sur l'incendie, le détecteur d'incendie (2) ayant détecté l'incendie (7) étant désigné en tant que premier déclencheur I. Les détecteurs d'incendie (2) sont réalisés pour déterminer, sur la base de l'avis d'alarme en provenance du réseau (6) ou d'un avis d'alarme diffusé en provenance du réseau (6), une mesure de distance au premier déclencheur I et pour former le signal d'alarme (A1, A2, A3) en fonction de la distance mesurée.
PCT/EP2012/071153 2011-10-25 2012-10-25 Système de détection d'incendie avec contrôle de signal d'alarme ainsi que procédé d'alarme d'un incendie WO2013060776A1 (fr)

Applications Claiming Priority (2)

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DE201110085152 DE102011085152A1 (de) 2011-10-25 2011-10-25 Brandmeldesystem mit Alarmsignalkontrolle sowie Verfahren zur Meldung eines Brands
DE102011085152.6 2011-10-25

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Cited By (4)

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CN109841045A (zh) * 2019-04-08 2019-06-04 山东北仁汇智能源发展有限公司 一种低功耗报警设备快速入网nb-iot平台的通讯系统及方法
CN112466082A (zh) * 2020-11-12 2021-03-09 上海意静信息科技有限公司 一种基于时间空间与联动关系的人工智能火灾报警分级预警方法
CN113205653A (zh) * 2021-05-07 2021-08-03 北京天地玛珂电液控制系统有限公司 声光报警器的报警控制方法、装置和电子设备
CN116600305A (zh) * 2023-04-27 2023-08-15 应急管理部沈阳消防研究所 一种独立式火灾探测报警器组网与约束性参数设计方法

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CN114511982B (zh) * 2022-04-19 2022-07-08 亿慧云智能科技（深圳）股份有限公司 一种烟雾报警方法及智能烟雾报警器

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109841045A (zh) * 2019-04-08 2019-06-04 山东北仁汇智能源发展有限公司 一种低功耗报警设备快速入网nb-iot平台的通讯系统及方法
CN112466082A (zh) * 2020-11-12 2021-03-09 上海意静信息科技有限公司 一种基于时间空间与联动关系的人工智能火灾报警分级预警方法
CN113205653A (zh) * 2021-05-07 2021-08-03 北京天地玛珂电液控制系统有限公司 声光报警器的报警控制方法、装置和电子设备
CN116600305A (zh) * 2023-04-27 2023-08-15 应急管理部沈阳消防研究所 一种独立式火灾探测报警器组网与约束性参数设计方法

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