EP1612754B1 - Hasard warning device - Google Patents
Hasard warning device Download PDFInfo
- Publication number
- EP1612754B1 EP1612754B1 EP05010435A EP05010435A EP1612754B1 EP 1612754 B1 EP1612754 B1 EP 1612754B1 EP 05010435 A EP05010435 A EP 05010435A EP 05010435 A EP05010435 A EP 05010435A EP 1612754 B1 EP1612754 B1 EP 1612754B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alarm
- protection screen
- detector
- annunciator
- casing
- 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 - Fee Related
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- 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
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
Definitions
- the invention relates to a hazard detector according to the preamble of patent claim 1.
- WO 00/43964 a wireless alarm system is described which uses a fire detector with an integrated radio transmitter. If a fire is registered by the fire detector, a radio signal is sent by the fire detector. The signal is received in a receiver of a nearest extinguisher, upon receipt of the alarm signal, a loud beep is emitted, whereby the extinguisher can be located.
- JP 7002216261 A a transmitter module for a fire detector is described, which is powered by a battery.
- the arrangement of the antenna is chosen so that it is located as possible on the outer edge of the transmitter module in the fire detector to ensure effective radiation of the radio waves.
- there is no optimal circular radiation of the radio waves since the battery is located within the fire detector close to the transmitting antenna.
- the battery is known to have a metallic shell, which leads to a shadowing of the radio waves.
- a radio module can be plugged onto the fire detector as a separate component from the outside. It is advantageous that the antenna can be mounted on the outside of the radio module, whereby an optimal radiation characteristic is achieved.
- the disadvantage is that a special module for the radio transmission must be created and that a slot with multiple plug contacts must be provided for the connection to the fire alarm. Through the use of plug contacts suffers the reliability of such a fire detector.
- batteries or accumulators are integrated into the fire alarm as energy sources.
- batteries have metal housings positioned relatively close to the transmit and receive antennas in the fire detector. This shadows the radio waves for certain directions and results in a reduced range and thus also susceptibility to radio transmission.
- the invention has for its object to provide a hazard detector, in particular gas or fire detectors with a radio transmitter and / or receiver module, in which an optimal wave propagation characteristic is obtained to increase the reliability and reduce the susceptibility.
- a metallic protective screen covering the opening in the housing is provided, which is designed as an antenna and connected to the antenna output of the radio module.
- Hazard detectors are units that are attached to the ceiling or wall of a building.
- a detector for determining altered gas composition or aerosols in the atmosphere is usually located within a housing.
- the ambient air or aerosols or the gas must first enter the housing via at least one opening in order to reach the detector.
- the opening in such a way that dusts or other coarser particles floating in the air do not enter the interior of the housing and thereby affect the test section and trigger a false alarm.
- a screen with which such an opening is closed can be formed as a metal mesh, which is designed as an antenna at the same time.
- the length of an antenna must be in a certain ratio to the wavelength of the radio waves.
- openings In order not to favor any direction for the gas, it is common to distribute openings around the circumference of the housing via which fluid communication is established between the detector and the environment of the detector. With the help of the protective screen, therefore, a cover of all openings can be done simultaneously and thus at the same time a suitable Length dimension can be selected for the sieve. Since the openings are relatively far away from the battery in the detector housing, the disturbing effect on the sending or receiving process is reduced. In addition, the openings in the detector housing are usually at a certain distance from the ceiling or the wall of the building, which accommodates the propagation characteristic positively.
- the length of the protective screen is an integer fraction of the wavelength of the transmitted or received signals.
- ⁇ 69.28 cm.
- An optimal antenna dimension results with an antenna length of ⁇ , ⁇ / 2, ⁇ / 4 and ⁇ 5 / 8.
- An antenna length ⁇ / 4 is therefore 17.32 cm.
- At a frequency of 868 MHz results for ⁇ / 2 an antenna length of 17.28 cm. This is a dimension as appropriate for a protective screen within the detector housing.
- the protective screen and thus the antenna is preferably circular, with the circle being divided, i. the ends of the protective screen are not electrically connected to each other.
- the radio module is preferably connected to one end of the protective screen. By changing the distance between the ends, the length of the protective screen or the optimal antenna length can be adjusted accordingly.
- the protective screen is arranged in a first plane of the housing and in this plane, the measuring chamber containing a detector is arranged. In a second level, closer to the wall or the ceiling is located, the radio module is arranged. As a result, a further spatial separation between the antenna on the one hand and the battery on the other hand is obtained.
- the battery is preferably arranged in a third plane of the housing, which in turn is closer to the wall or ceiling in turn than the second plane.
- the housing consists of three parts, namely a detector body, which is fastened to the ceiling or wall and which receives the battery, a shell part which is attachable to the detector body and the radio module, an electronic circuit arrangement and the detector holds and a cap part, which is detachably connectable to the shell part and receives the protective screen and the detector.
- a fire detector 10 is shown, whose housing consists of three parts, namely a detector body 12 which is fastened to a ceiling or a wall of a building (not shown), a shell part 14 and a cap part 16.
- the shell part 14 is by means of screws or through a snap connection on the body part 12 releasably fastened and the cap member 16 is releasably attachable to the shell member 14 by means of screws or by a snap connection.
- the cap member 16 has circumferentially equally spaced ribs or ridges 18 connected to a bottom portion 20.
- flow openings 22 are formed, through which a connection is made between the interior of the fire detector 10 and the environment.
- the openings 22 are covered on the inside of the ribs 18 by a metallic protective screen 24.
- the ribs 18 are connected on the opposite side of the section 20 with an annular flange 26 which in an annular recess 28 (FIG. Fig. 2 ) of the shell part 14 is received.
- An inner wall surface 30 of the shell part 14 defines a measuring chamber.
- an infrared transmitting diode 32 is mounted, and a receiving diode 34 "looks" in the bounded by the wall surface 30 measuring space, wherein a shading element 34a prevents direct light from the transmitting diode 32 to the receiving diode 34 passes.
- Fig. 2 the cap member 16 is removed but the screen 24 is left.
- the metallic screen 24 is arranged in a circle, but between the free ends of the screen 24, a gap 36 is formed.
- the screen 24 is located on the inside of the ribs 18 and prevents the ingress of dirt and insects.
- a circuit board 38 is mounted, on which the electronic circuit arrangement is arranged to operate the detector 10 shown below the circuit board below 3 or 4 a radio module 40 is attached.
- the radio module is connected to a wire 42, which is passed through the wall portion 30 perpendicular to the circuit board 38 and, as in particular in Fig. 3 to be connected to one end of the protective screen 24 as shown at 46.
- the protective screen 24 is thus an antenna for the radio module 40, wherein its length has a matched to the wavelength of the transmission frequency dimension.
- the cap member 16 When assembling the parts shown, the cap member 16 is placed on the shell member 14, wherein a snap connection can be made, as by the tongues 50 in Fig. 3 indicated.
- the cap member 16 and shell member assembly 14 may be attached to the body member 12 by means of screws as in FIG Fig. 1 indicated.
- the radio module can be designed both as a receiving and as a transmission module or for both.
- a battery or an accumulator is arranged, which supplies the radio module 40 and the circuit board 38 and the detector 32, 34 with electrical energy.
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
- Emergency Alarm Devices (AREA)
Description
Die Erfindung bezieht sich auf einen Gefahrenmelder nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a hazard detector according to the preamble of patent claim 1.
Die Übertragung von Signalen auf drahtlosem Wege (Funk) ist in der Gefahrenmeldetechnik seit langem bekannt. Es sind auch Brandsensoren bzw. -detektoren bekannt, die einen Sender enthalten zum Übertragen von Signalen auf einen stationären Empfänger und umgekehrt.The transmission of signals by wireless (radio) has long been known in the hazard alarm technology. There are also known fire sensors or detectors which include a transmitter for transmitting signals to a stationary receiver and vice versa.
Aus
In
In
In
Bei der Abstrahlung und dem Empfang von Funksignalen beeinflussen mehrere Faktoren die Reichweite der Funkwellen bzw. ihre Strahlcharakteristik. Bei den häufigsten Anwendungen für Brandmelder sind Batterien oder Akkumulatoren als Energiequellen in den Brandmelder integriert. Wie schon bemerkt, besitzen Batterien Metallgehäuse, die relativ dicht an der Sende- bzw. Empfangsantenne im Brandmelder positioniert sind. Dadurch erfolgt eine Abschattung der Funkwellen für bestimmte Richtungen und daraus resultiert eine verminderte Reichweite und somit auch Störanfälligkeit für die Funkübertragung.When radiating and receiving radio signals, several factors affect the range of the radio waves or their beam characteristics. For the most common applications for fire detectors, batteries or accumulators are integrated into the fire alarm as energy sources. As already noted, batteries have metal housings positioned relatively close to the transmit and receive antennas in the fire detector. This shadows the radio waves for certain directions and results in a reduced range and thus also susceptibility to radio transmission.
Anordnung und Ausführung der Antenne ist von großer Wichtigkeit. Hierdurch wird im wesentlichen der maximale Abstand zwischen Empfängern und Sendern für eine funktionierende Funkübertragung bestimmt.Arrangement and design of the antenna is of great importance. This essentially determines the maximum distance between receivers and transmitters for a functioning radio transmission.
Der Erfindung liegt die Aufgabe zugrunde, einen Gefahrenmelder, insbesondere Gas- oder Brandmelder mit einem Funksende- und/oder Empfangsmodul zu schaffen, bei dem eine optimale Wellenausbreitungscharakteristik erhalten wird zur Erhöhung der Betriebssicherheit und Verringerung der Störanfälligkeit.The invention has for its object to provide a hazard detector, in particular gas or fire detectors with a radio transmitter and / or receiver module, in which an optimal wave propagation characteristic is obtained to increase the reliability and reduce the susceptibility.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.
Bei dem erfindungsgemäßen Gefahrenmelder ist ein die Öffnung im Gehäuse abdeckendes metallisches Schutzsieb vorgesehen, das als Antenne ausgebildet und mit dem Antennenausgang des Funkmoduls verbunden ist.In the case of the danger detector according to the invention, a metallic protective screen covering the opening in the housing is provided, which is designed as an antenna and connected to the antenna output of the radio module.
Gefahrenmelder, insbesondere Gas- oder Brandmelder, sind Einheiten, die an der Decke oder der Wand eines Gebäudes angebracht werden. Ein Detektor zur Bestimmung einer veränderten Gaszusammensetzung oder von Aerosolen in der Atmosphäre befindet sich üblicherweise innerhalb eines Gehäuses. Die Umgebungsluft bzw. Aerosole oder das Gas müssen zunächst über mindestens eine Öffnung in das Gehäuse eintreten, um zum Detektor zu gelangen. Um Störungen zu vermeiden, ist es an sich bekannt, die Öffnung so auszugestalten, daß Stäube oder sonstige gröbere in der Luft schwebende Teilchen nicht in das Innere des Gehäuses gelangen und dadurch die Meßstrecke beeinträchtigen und einen Fehlalarm auslösen. Bei der Erfindung ist erkannt worden, daß ein Sieb, mit dem eine derartige Öffnung verschlossen wird, als Metallsieb geformt werden kann, das gleichzeitig als Antenne ausgelegt ist. Bekanntlich muß die Länge einer Antenne in einem bestimmten Verhältnis zur Wellenlänge der Funkwellen stehen.Hazard detectors, especially gas or fire detectors, are units that are attached to the ceiling or wall of a building. A detector for determining altered gas composition or aerosols in the atmosphere is usually located within a housing. The ambient air or aerosols or the gas must first enter the housing via at least one opening in order to reach the detector. To avoid interference, it is known per se, the opening in such a way that dusts or other coarser particles floating in the air do not enter the interior of the housing and thereby affect the test section and trigger a false alarm. In the invention it has been recognized that a screen with which such an opening is closed, can be formed as a metal mesh, which is designed as an antenna at the same time. As is known, the length of an antenna must be in a certain ratio to the wavelength of the radio waves.
Um keine Richtung für das Gas zu bevorzugen, ist es üblich, Öffnungen über den Umfang des Gehäuses zu verteilen, über welche eine Fluidkommunikation zwischen dem Detektor und der Umgebung des Melders hergestellt wird. Mit Hilfe des Schutzsiebes kann daher eine Abdeckung sämtlicher Öffnungen gleichzeitig erfolgen und damit zugleich eine geeignete Längenabmessung für das Sieb gewählt werden. Da die Öffnungen relativ weit entfernt sind von der Batterie im Meldergehäuse, ist die störende Auswirkung auf den Sende- oder Empfangsvorgang reduziert. Außerdem liegen die Öffnungen im Meldergehäuse zumeist in einem bestimmten Abstand zur Decke oder zur Wand des Gebäudes, was der Ausbreitungscharakteristik positiv entgegenkommt.In order not to favor any direction for the gas, it is common to distribute openings around the circumference of the housing via which fluid communication is established between the detector and the environment of the detector. With the help of the protective screen, therefore, a cover of all openings can be done simultaneously and thus at the same time a suitable Length dimension can be selected for the sieve. Since the openings are relatively far away from the battery in the detector housing, the disturbing effect on the sending or receiving process is reduced. In addition, the openings in the detector housing are usually at a certain distance from the ceiling or the wall of the building, which accommodates the propagation characteristic positively.
Es sind verschiedene konstruktive Lösungen denkbar zur Verwirklichung der beschriebenen Erfindung. Nach einer Ausgestaltung der Erfindung ist die Länge des Schutzsiebes ein ganzteiliger Bruchteil der Wellenlänge der gesendeten oder empfangenen Signale. Die Beziehung zwischen Wellenlänge, Frequenz und Lichtgeschwindigkeit ist bekanntlich
wobei Lambda die Wellenlänge, c die Lichtgeschwindigkeit und f die Frequenz ist. Wird z.B. eine Frequenz von 433 MHz gewählt, ist λ = 69,28 cm. Ein optimales Antennenmaß ergibt sich bei einer Antennenlänge von λ, λ/2, λ/4 und λ5/8. Eine Antennenlänge λ/4 ist daher 17,32 cm. Bei einer Frequenz von 868 MHz ergibt sich für λ/2 eine Antennenlänge von 17,28 cm. Dies ist eine Abmessung, wie sie für ein Schutzsieb innerhalb des Meldergehäuses in Frage kommt.There are various constructive solutions conceivable for the realization of the described invention. According to one embodiment of the invention, the length of the protective screen is an integer fraction of the wavelength of the transmitted or received signals. The relationship between wavelength, frequency and speed of light is known
where lambda is the wavelength, c is the speed of light and f is the frequency. For example, if a frequency of 433 MHz is selected, λ = 69.28 cm. An optimal antenna dimension results with an antenna length of λ, λ / 2, λ / 4 and λ5 / 8. An antenna length λ / 4 is therefore 17.32 cm. At a frequency of 868 MHz results for λ / 2 an antenna length of 17.28 cm. This is a dimension as appropriate for a protective screen within the detector housing.
Das Schutzsieb und damit die Antenne ist vorzugsweise kreisförmig, wobei der Kreis geteilt ist, d.h. die Enden des Schutzsiebes elektrisch nicht miteinander in Verbindung stehen. Das Funkmodul ist vorzugsweise mit einem Ende des Schutzsiebes verbunden. Durch Veränderung des Abstands zwischen den Enden läßt sich mithin die Länge des Schutzsiebes bzw. die optimale Antennenlänge einstellen.The protective screen and thus the antenna is preferably circular, with the circle being divided, i. the ends of the protective screen are not electrically connected to each other. The radio module is preferably connected to one end of the protective screen. By changing the distance between the ends, the length of the protective screen or the optimal antenna length can be adjusted accordingly.
Nach einer Ausgestaltung der Erfindung ist vorgesehen, daß das Schutzsieb in einer ersten Ebene des Gehäuses angeordnet und in dieser Ebene die einen Detektor enthaltende Meßkammer angeordnet ist. In einer zweiten Ebene, die näher an der Wand oder der Decke liegt, ist das Funkmodul angeordnet. Dadurch wird eine weitere räumliche Trennung zwischen Antenne einerseits und Batterie andererseits erhalten.According to one embodiment of the invention, it is provided that the protective screen is arranged in a first plane of the housing and in this plane, the measuring chamber containing a detector is arranged. In a second level, closer to the wall or the ceiling is located, the radio module is arranged. As a result, a further spatial separation between the antenna on the one hand and the battery on the other hand is obtained.
Die Batterie ist vorzugsweise in einer dritten Ebene des Gehäuses angeordnet, die wiederum ihrerseits näher an der Wand oder der Decke liegt als die zweite Ebene.The battery is preferably arranged in a third plane of the housing, which in turn is closer to the wall or ceiling in turn than the second plane.
Nach einer weiteren Ausgestaltung der Erfindung wird die zuletzt beschriebene Ausführungsform dadurch realisiert, daß das Gehäuse aus drei Teilen besteht, nämlich einem Melderrumpf, der an der Decke oder Wand befestigbar ist und der die Batterie aufnimmt, einem Schalenteil, welches an dem Melderrumpf anbringbar ist und das Funkmodul, eine elektronische Schaltungsanordnung und den Detektor hält und einem Kappenteil, das mit dem Schalenteil lösbar verbindbar ist und das Schutzsieb und den Detektor aufnimmt. Durch Abnehmen des Kappenteils vom Schalenteil ist das Innere der Meßkammer zugänglich und kann gewartet werden, wie auch das Schutzsieb, das gegebenenfalls zu reinigen ist. Durch Abnehmen auch des Schalenteils vom Melderrumpf ist die elektronische Schaltungsanordnung und das Funkmodul zugänglich.According to a further embodiment of the invention, the last described embodiment is realized in that the housing consists of three parts, namely a detector body, which is fastened to the ceiling or wall and which receives the battery, a shell part which is attachable to the detector body and the radio module, an electronic circuit arrangement and the detector holds and a cap part, which is detachably connectable to the shell part and receives the protective screen and the detector. By removing the cap part of the shell part, the interior of the measuring chamber is accessible and can be maintained, as well as the protective screen, which may need to be cleaned. By removing also the shell part of the detector body, the electronic circuitry and the radio module is accessible.
Die Erfindung wird nachfolgend anhand eines in Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.
- Fig. 1
- zeigt perspektivisch einen Gefahrenmelder nach der Erfindung.
- Fig 2
- zeigt perspektivisch das Schalenteil mit einem Schutzsieb für das nicht gezeigte Kappenteil.
- Fig. 3
- zeigt die Seitenansicht der Darstellung nach
Fig. 2 mit teilweise weggebrochenen Teilen. - Fig. 4
- zeigt eine ähnliche Darstellung wie
Fig. 1 , jedoch um 180° gedreht wiederum mit weggebrochenen Teilen.
- Fig. 1
- shows in perspective a danger detector according to the invention.
- Fig. 2
- shows in perspective the shell part with a protective screen for the cap part, not shown.
- Fig. 3
- shows the side view of the presentation
Fig. 2 with partially broken parts. - Fig. 4
- shows a similar representation as
Fig. 1 , but rotated 180 ° again with parts broken away.
In
In
Eine innere Wandfläche 30 des Schalenteils 14 begrenzt eine Meßkammer. An der Wandfläche 30 ist eine Infrarotsendediode 32 angebracht, und eine Empfangsdiode 34 "blickt" in den durch die Wandfläche 30 begrenzten Meßraum, wobei ein Abschattungselement 34a verhindert, daß direktes Licht von der Sendediode 32 zur Empfangsdiode 34 gelangt.An
In
Aus den
Beim Zusammenbau der gezeigten Teile wird das Kappenteil 16 auf das Schalenteil 14 aufgesetzt, wobei eine Schnappverbindung hergestellt werden kann, wie durch die Zungen 50 in
Es versteht sich, daß das Funkmodul sowohl als Empfangs- als auch als Sendemodul bzw. auch für beides ausgelegt sein kann.It is understood that the radio module can be designed both as a receiving and as a transmission module or for both.
Es sei noch erwähnt, daß in dem Rumpfteil 12 eine Batterie oder ein Akkulator angeordnet ist, der das Funkmodul 40 und die Schaltplatine 38 sowie den Detektor 32, 34 mit elektrischer Energie versorgt.It should be noted that in the
Claims (11)
- An alarm annunciator, particularly a gas or fire annunciator, having a casing mountable on a wall or a ceiling, which contains an alarm detector, which is in wireless connection with the surroundings of the casing via at least one opening, an electronic circuitry for the evaluation of the signals of the alarm detector, a wireless module, connected to the electronic circuitry and having an antenna for wireless receiving or sending signals to/from a sending/receiving station, and a battery for the power supply of the electronic circuitry and the wireless module, characterised in that a metallic protection screen (24) covering the opening (22) is designed as an antenna and is connected with the antenna output socket of the wireless module (40).
- An alarm annunciator according to claim 1, characterised in that the length of the protection screen (24) is an integer fraction of the wavelength of the sent or received signals.
- An alarm annunciator according to claim 1 or 2, characterised in that the protection screen (24) is not electrically connected on its ends.
- An alarm annunciator according to claim 3, characterised in that the antenna output socket is connected with one end of the protection screen (24).
- An alarm annunciator according to any one of claims 1 to 4, characterised in that the protection screen (24) is circle-shaped.
- An alarm annunciator according to any one of claims 1 to 5, characterised in that the protection screen (24) is disposed in a first plane of the casing and is assigned to a measuring chamber containing the detector (32, 34) and that the wireless module (40) is disposed in a second plane of the casing, which is situated nearer to the wall or ceiling.
- An alarm annunciator according to claim 6, characterised in that the wireless module (40) is an integral part of a printed circuit board (38) for the electronic circuitry, or is attached to it.
- An alarm annunciator according to claim 6 or 7, characterised in that the battery is disposed in a third plane of the casing, which is situated nearer to the wall or ceiling than the second plane.
- An alarm annunciator according to any one of claims 6 to 8, characterised in that the casing has an annunciator carcass (12), accommodating the battery and being mountable on the wall or ceiling, a shell portion (14), holding the electronic circuitry, the wireless module (40) and the detector, detachably connectable with the annunciator carcass, and a cap portion (16), detachably connectable with the shell portion, forming the opening (22) and accommodating the protection screen (24).
- An alarm annunciator according to claim 9, characterised in that the annunciator carcass (12), the shell portion (14) and the cap portion (16) have a circle-shaped diameter.
- An alarm annunciator according to claim 9 or 10, characterised in that the cap portion (16) has approximately vertical ribs (18), spaced apart from each other in the perimeter direction, which constitute several openings (22), which are covered by the protection screen (24) on the inner side of the cap portion (16).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029242A DE102004029242B4 (en) | 2004-06-17 | 2004-06-17 | alarm Devices |
Publications (3)
Publication Number | Publication Date |
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EP1612754A1 EP1612754A1 (en) | 2006-01-04 |
EP1612754B1 true EP1612754B1 (en) | 2008-03-26 |
EP1612754B8 EP1612754B8 (en) | 2008-06-18 |
Family
ID=34936485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP05010435A Expired - Fee Related EP1612754B8 (en) | 2004-06-17 | 2005-05-13 | Hasard warning device |
Country Status (4)
Country | Link |
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US (1) | US7218239B2 (en) |
EP (1) | EP1612754B8 (en) |
DE (2) | DE102004029242B4 (en) |
ES (1) | ES2300898T3 (en) |
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US7886868B2 (en) * | 2008-03-25 | 2011-02-15 | Simplexgrinnell Lp | Self-draining grill and system incorporating the same |
DE102009047358A1 (en) * | 2009-12-01 | 2011-06-09 | Robert Bosch Gmbh | Fire alarm and / or warning device |
JP5921198B2 (en) * | 2010-01-21 | 2016-05-24 | ホーチキ株式会社 | sensor |
US20110226774A1 (en) * | 2010-03-16 | 2011-09-22 | Trevis Russel Kurz | Mountable Enclosure |
US9722292B2 (en) * | 2010-03-19 | 2017-08-01 | Panasonic Intellectual Property Management Co., Ltd. | Wireless apparatus, wireless abnormality notification system using same, and wireless remote control system |
EP2677507B1 (en) * | 2012-06-18 | 2018-01-17 | Siemens Schweiz AG | Hazard warning device using radio communication |
US9799175B2 (en) | 2014-05-06 | 2017-10-24 | White Stagg, Llc | Signal device with indirect lighting signal |
CN105115529B (en) * | 2015-08-20 | 2018-01-12 | 奥泰斯电子(东莞)有限公司 | A kind of security protection inductor |
HUE044839T2 (en) | 2017-02-16 | 2019-11-28 | Heim Mark | Hazard warning device with coverable air passage opening |
US11024143B2 (en) * | 2019-07-30 | 2021-06-01 | Ppip, Llc | Audio events tracking systems and methods |
CN112543065B (en) * | 2020-12-03 | 2023-03-03 | 中北大学 | Wireless power transmission and communication device and communication method for sealed metal container |
CN113803612B (en) * | 2021-08-14 | 2023-05-05 | 上海青舟燃气设备有限公司 | Mounting method and mounting structure of gas alarm sensor |
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US4417235A (en) * | 1981-03-24 | 1983-11-22 | Del Grande Donald J | Audible alarm network |
JPS63239592A (en) * | 1987-03-27 | 1988-10-05 | ホーチキ株式会社 | Photoelectric type smoke sensor |
GB2270157B (en) * | 1992-08-28 | 1996-07-24 | Hochiki Co | Light scattering type smoke detector |
DE4408268C2 (en) * | 1994-03-11 | 2000-11-02 | Grundig Ag | Procedure for increasing the interference immunity of a radio alarm system |
US6384790B2 (en) * | 1998-06-15 | 2002-05-07 | Ppg Industries Ohio, Inc. | Antenna on-glass |
WO2000022591A1 (en) * | 1998-10-14 | 2000-04-20 | Morris Gary J | Communicative environmental alarm system with voice indication |
WO2000043964A1 (en) * | 1999-01-21 | 2000-07-27 | Morris Gary J | Environmental condition detector with remote fire extinguisher locator system |
US6057774A (en) * | 1999-01-21 | 2000-05-02 | Brk Brands, Inc. | Smoke alarm with anti-dust screen |
US6420973B2 (en) * | 1999-01-23 | 2002-07-16 | James Acevedo | Wireless smoke detection system |
DE29919926U1 (en) * | 1999-11-13 | 2000-02-24 | M E Micro Electric Vertrieb Vo | Electronic smoke detector |
JP4061453B2 (en) * | 2001-01-23 | 2008-03-19 | セコム株式会社 | Wireless transmitter |
US6577242B2 (en) * | 2001-05-04 | 2003-06-10 | Pittway Corporation | Wireless transfer of data from a detector |
US6933891B2 (en) * | 2002-01-29 | 2005-08-23 | Calamp Corp. | High-efficiency transparent microwave antennas |
-
2004
- 2004-06-17 DE DE102004029242A patent/DE102004029242B4/en not_active Expired - Fee Related
-
2005
- 2005-05-13 EP EP05010435A patent/EP1612754B8/en not_active Expired - Fee Related
- 2005-05-13 ES ES05010435T patent/ES2300898T3/en active Active
- 2005-05-13 DE DE502005003419T patent/DE502005003419D1/en active Active
- 2005-06-13 US US11/150,959 patent/US7218239B2/en not_active Expired - Fee Related
Also Published As
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US20050280547A1 (en) | 2005-12-22 |
DE102004029242A1 (en) | 2006-01-05 |
ES2300898T3 (en) | 2008-06-16 |
DE502005003419D1 (en) | 2008-05-08 |
DE102004029242B4 (en) | 2008-04-03 |
EP1612754A1 (en) | 2006-01-04 |
EP1612754B8 (en) | 2008-06-18 |
US7218239B2 (en) | 2007-05-15 |
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