EP2720209B2 - Warning system with a digital temperature sensor - Google Patents

Warning system with a digital temperature sensor Download PDF

Info

Publication number
EP2720209B2
EP2720209B2 EP12187861.5A EP12187861A EP2720209B2 EP 2720209 B2 EP2720209 B2 EP 2720209B2 EP 12187861 A EP12187861 A EP 12187861A EP 2720209 B2 EP2720209 B2 EP 2720209B2
Authority
EP
European Patent Office
Prior art keywords
temperature sensor
warning system
detector
connecting line
evaluation unit
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.)
Active
Application number
EP12187861.5A
Other languages
German (de)
French (fr)
Other versions
EP2720209A1 (en
EP2720209B1 (en
Inventor
Harald Ebner
Hilmar Konrad
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.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47146169&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2720209(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to EP12187861.5A priority Critical patent/EP2720209B2/en
Priority to PL12187861T priority patent/PL2720209T5/en
Publication of EP2720209A1 publication Critical patent/EP2720209A1/en
Publication of EP2720209B1 publication Critical patent/EP2720209B1/en
Application granted granted Critical
Publication of EP2720209B2 publication Critical patent/EP2720209B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • 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

Definitions

  • the invention relates to a hazard detector, in particular a point detector, with a detector housing, with a temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature.
  • the invention also relates to a gas alarm and a smoke or fire alarm equipped according to the generic hazard alarm.
  • Hazard detectors can be provided to detect an ambient temperature, e.g. to detect the heat generated in a fire or fire and / or to regulate the room temperature in the sense of a room climate control.
  • the hazard alarms can also be fire alarms or smoke alarms.
  • they have a detection unit for detecting smoke particles.
  • the detection unit can e.g. have an open measuring chamber or a closed measuring chamber for smoke detection. Consequently, such a fire or smoke alarm is also referred to as a closed or open fire or smoke alarm.
  • these fire or smoke alarms can be optical fire or smoke alarms which have an optical detector unit that works according to the scattering principle for the detection of smoke particles.
  • they can have a detector unit working according to the acousto-optical principle and / or one or more gas sensors for the detection of gases typical of a fire.
  • Hazard alarms with one or more temperature sensors are known from the prior art.
  • Hazard detector with Several temperature sensors are complex to manufacture because soldering processes are required for each sensor.
  • the temperature sensor is attached to the top of the detector.
  • the connection to an evaluation unit which is located on a printed circuit board on the base of the hazard detector, is made by a connection line that leads through the optically sensitive interior of the detector housing and through the measuring chamber for smoke detection to the evaluation unit. This leads to complex constructions with regard to the measuring chamber and complicates the installation of the hazard alarm.
  • a hazard detector in particular a point detector, with a detector housing, with a temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature
  • the temperature sensor is a digital temperature sensor
  • the temperature sensor is connected for data purposes to the evaluation unit via a connecting line arranged on the inside of the detector housing, the connecting line away from the centrally mounted temperature sensor is arranged for the evaluation unit, wherein the connecting line is designed as a conductor track film, wherein the temperature sensor is applied to the conductor track film and wherein the digital temperature sensor has a microcontroller and a digital data interface.
  • Digital temperature sensors are inexpensive and have a small component size (1.0 mm x 0.8 mm).
  • a semiconductor temperature sensor for example, in which the temperature is measured on the basis of semiconductor materials, can be used as the temperature sensor.
  • the TMP104 from Texas Instruments, the TC 77 from Microchip or the LM71A from National Semiconductor can be used as temperature sensor.
  • connection line is attached to the inside of the housing (e.g. by means of a suitable adhesive tape, by using a stick-on strip conductor foil as a connection line or by retaining clips that are molded on the inside of the detector housing) means that the interior of the housing is used for receiving and Easy installation of detection modules for various fire parameters (e.g. measuring chambers for smoke detection) kept free.
  • the digital temperature sensor has a high level of EMC resistance, since the transmission of digital signals results in a high S / N (signal-to-noise ratio), i.e. a high signal-to-noise ratio on lines exposed to radiation.
  • the evaluation unit is advantageously a microcontroller or a processor-supported processing unit.
  • Conductor foils have power and control lines and can be attached to the inside of the housing very easily (e.g. by pressing on) with a positive fit.
  • the conductor track film is typically metallized, usually made of copper.
  • a further advantageous embodiment of the invention is that the connecting line is designed as a conductor track film laminated on one or both sides. This means that a conductor track film, scaled with regard to the respective application requirements (e.g. moisture, dirt), can be used on the hazard detector.
  • Another advantageous embodiment of the invention is that the power supply for the temperature sensor is provided via the connecting line. There is therefore no need for a separate power supply for the temperature sensor. Furthermore, the cabling in the housing is reduced and the installation effort of the hazard alarm is simplified.
  • preliminary evaluations can be carried out in the sensor, such as the correction of any detected measurement errors.
  • the digital data interface enables simple and safe coupling of further components to the digital temperature sensor.
  • the data interface can e.g. be a serial interface.
  • a further advantageous embodiment of the invention is that an indicator is arranged on the connecting line, which indicator can be controlled electrically via the evaluation unit.
  • This is advantageously an acoustic (e.g. siren) or optical (e.g. LED) indicator.
  • An LED can e.g. be applied with SMD technology on a conductor track film.
  • a further advantageous embodiment of the invention is that the evaluation unit issues an alarm message (or warning message) when a dangerous situation is recognized and / or reports the alarm message to a control center via a communication link.
  • An alarm message can e.g. by the hazard detector by activating a siren or by activating a loudspeaker announcement.
  • the hazard alarm it is also possible for the hazard alarm to include a transmitter unit and / or a communication device (e.g. radio link) for outputting alarm or warning messages to a fire alarm center or a building control center.
  • a communication device e.g. radio link
  • Received messages can thus be clearly assigned to a hazard detector.
  • a further advantageous embodiment of the invention is that at least one further second sensor is data-technically coupled to the temperature sensor on the connecting line, for example in a daisy-chain arrangement.
  • one or more fire gas sensors can be used for detection typical fire gases (e.g. CO, NO x ) are data-linked to the temperature sensor. This makes it possible to record several fire parameters and report them to the evaluation unit on a common connection line.
  • the second sensor is a gas sensor.
  • the detection and consideration of different fire parameters leads to more precise analyzes in the evaluation unit.
  • the hazard alarm comprises a measuring chamber based on the optical scattering principle.
  • An electro-optical sensor is used to detect the scattered light generated by smoke in the room air.
  • the measuring chamber also known as a labyrinth, is typically shielded from external light by shielding. Furthermore, at least one light source and one light receiver are required to operate according to the optical scattering principle. Because the interior of the hazard alarm housing is kept free, the measuring chamber can easily be accommodated and installed in the hazard alarm.
  • the object is also achieved by a gas detector, implemented according to the generic hazard detector.
  • a gas detector combined with a temperature detector, enables dangerous situations in buildings to be recognized quickly and reliably.
  • a smoke or fire alarm designed according to the generic hazard alarm, the smoke or fire alarm having a detection unit for detecting smoke particles.
  • a Smoke or fire detectors combined with a temperature detector, enable quick and reliable detection of dangerous situations in buildings.
  • the detection unit can be, for example, an optical detection unit for detecting smoke particles according to the scattering principle. In principle, however, the detection unit can also work according to the acousto-optical principle or according to the ionization principle. Since the space in the interior of the detector housing is not taken up by the temperature sensor, the detector can in principle even accommodate more than one detection unit that can supply different fire parameters.
  • Hazard detectors can be designed as point detectors.
  • Point detectors can be provided to detect an ambient temperature, for example to detect the heat generated in a fire or fire and / or around room temperature to be regulated in terms of room climate regulation.
  • the point detectors can also be fire detectors or smoke detectors.
  • they have a detection unit for detecting smoke particles.
  • the detection unit can, for example, have an open measuring chamber (8) or a closed measuring chamber for smoke detection. Consequently, such a fire or smoke alarm is also referred to as a closed or open fire or smoke alarm.
  • these fire or smoke alarms can be optical fire or smoke alarms which have an optical detector unit that works according to the scattering principle for the detection of smoke particles.
  • they can have a detector unit working according to the acousto-optical principle and / or one or more gas sensors for the detection of gases typical of a fire.
  • Point detectors can be connected to a fire alarm center (e.g. fire brigade or building control center) for signaling and / or data technology via a common detector line, in particular a two-wire line.
  • a fire alarm center e.g. fire brigade or building control center
  • Several such fire alarms in alarm groups or alarm lines can be connected to a central fire alarm system, via which the fire alarms are typically also supplied with electricity.
  • the point detectors can be designed "wirelessly". In this case the point detectors communicate wirelessly, e.g. via radio, with the fire alarm center and / or with other neighboring point detectors.
  • Figure 1 shows an exemplary hazard detector 1 according to the invention as a point detector with a digital temperature sensor 3 and a measuring chamber 8.
  • the hazard detector 1 can be designed for attachment to a base SO.
  • the hazard alarm 1 essentially has a spherical housing 2, typically made of plastic.
  • the housing 2 can be constructed in one or more parts.
  • a circuit carrier 6 circuit board, printed circuit board
  • the detection modules for detecting hazard parameters e.g. fire parameters
  • the base SO is intended for mounting on the ceiling of the room to be monitored, with mounting either directly on a flush-mounted box or on-wall with or without a base attachment, for example by screw, plug or adhesive connections.
  • the base SO usually consists essentially of a circular plate and a downwardly protruding edge web and contains connection mechanisms (e.g. plug-in mechanism) for attaching the housing 2. Furthermore, the base SO can have connection contacts for an external power supply or for data connections (e.g. to other hazard alarms or to a control center).
  • connection mechanisms e.g. plug-in mechanism
  • the hazard alarm 1 can contain further detection units for recognizing additional hazard parameters.
  • the detection units can, for example, be components for detecting smoke particles according to the optical scattering principle. Such optical detection units are provided for the measurement of scattered light caused by smoke.
  • At least one light source, a light receiver, a measuring chamber 8 and a labyrinth system with diaphragms arranged on the periphery of the measuring chamber 8 are used, the at least one light source and the light receiver in the housing 2 advantageously being attached to the underside of a carrier plate TP.
  • the smoke can enter the measuring chamber 8 through smoke inlet openings RO located in the housing 2.
  • the carrier plate TP can e.g. be fixed by a plug connection on the underside of the base SO.
  • the circuit carrier 6 (circuit board, printed circuit board) has an evaluation unit 4 and, under certain circumstances, other electronic elements that are usually attached to the circuit carrier 6 using SMD technology (surfacemounted device) or through-hole mounting.
  • the electronic evaluation unit 4 is typically implemented in an integrated form, for example as a microcontroller.
  • the evaluation unit 4 essentially serves to record and evaluate the ambient temperature or other hazard parameters in the area of the point detector. Furthermore, the hazard parameters (for example fire parameters) of further detection units (if present in hazard alarm 1) are recorded and evaluated in the evaluation unit 4. In the evaluation unit 4, an analysis can then take place based on an overall view of the recorded parameters.
  • the evaluation unit 4 causes an output (for example flashlight, siren) and / or transmission (for example to a control center) of the information derived in the analysis.
  • the transfer can take place in a wired or wireless manner through a communication link 10.
  • the evaluation unit 4 can initiate the output (alarm) or forwarding to the control center, for example on the basis of defined threshold values for hazard parameters or by averaging the hazard parameters over a defined period (for example 30 seconds).
  • the communication link 10 can be established, for example, by a radio link (with a transmitter / receiver unit), the hazard alarm 1 comprising at least one transmitter unit.
  • the communication connection 10 is implemented, for example, by a radio chip on the circuit carrier 6.
  • the circuit carrier 6 (circuit board, printed circuit board) can be attached to the base SO or e.g. on the carrier plate TP (advantageously on the side of the carrier plate TP that faces away from the detection units).
  • the circuit carrier 6 can e.g. be attached by a plug connection.
  • the digital temperature sensor 3 is mounted centrally in or on the detector housing 2 at a location that is favorable in terms of measurement technology and enables the temperature in the vicinity of the hazard detector 1 to be recorded largely independently of the direction.
  • the digital temperature sensor 3 is advantageously attached to a central plumb line LA of the detector base SO on the inside of the detector housing 2 on the detector apex MS. Temperature sensors 3 mounted in the axis LA of the detector 1 work completely independent of direction.
  • the hazard detector 1 on the detector apex MS has a detector dome MK in which the temperature sensor 3 is accommodated.
  • the alarm dome MK consists of an upper annular part and a plate 22, which is spaced apart from this and forms the dome of the detector, which is connected to the upper annular part by arched or rib-like webs 21.
  • the height of the alarm dome MK is just high enough that the temperature sensor 3 can be attached within the alarm dome MK on the alarm apex MS in the axis LA.
  • the temperature sensor 3 can e.g. be fastened by a press fit or a plug connection in the alarm head MK.
  • the temperature sensor 3 can, however, also be attached to the connecting line 5.
  • the temperature sensor 3 is connected in terms of data to the evaluation unit 4 via a connecting line 5 arranged on the inside IS of the detector housing 2.
  • the connecting line 5 leads from the housing 2 through a passage opening DO to the temperature sensor 3.
  • the connecting line 5 is connected to the evaluation unit 4 for data purposes by a conductor track 7.
  • the power supply to the temperature sensor 3 is advantageously provided via the connecting line 5.
  • the connecting line 5 can be attached to the inside IS of the detector housing 2, for example, by an adhesive connection. Because the temperature sensor 3 and the connecting line 5 are located in the periphery of the detector housing 2, there is space in the interior of the detector housing 2 for undisturbed accommodation of further detection units (e.g. for fire or smoke detection).
  • the connecting line 5 is designed as a conductor track film laminated on one or two sides. Conductor foils take up little space, can be flexibly bendable, adaptable to the environment and can easily be contacted with electronic components.
  • Figure 2 shows a first example of a connecting line 5, designed as a conductor track film with a digital temperature sensor 3.
  • a conductor track film has conductor layers 51 arranged between insulating layers, which can be contacted via contacts 52 in terms of data and power (power supply).
  • the conductor track film represents the sensor carrier ST, on the surface OF of which the digital temperature sensor 3 is applied.
  • the digital temperature sensor 3 can be applied to the surface OF of the conductor track film, for example by pressing in, soldering, bonding or by means of a conductive adhesive.
  • the temperature sensor 3 is advantageously applied to one end of the conductor track film ST, this end of the conductor track film ST being thermally well decoupled from the rest of the conductor track film ST by a constriction ES (eg, punched recess). This avoids measurement errors on the sensor.
  • a constriction ES eg, punched recess.
  • Another advantage is that temperature changes in the area of the temperature sensor can be transferred to a connection contact of the temperature sensor 3 via the large-area, preferably bilateral, conductive track surface with high thermal conductivity, as in FIG Figure 2 lower right connection shown, can be forwarded.
  • the conductor track film ST can optionally have an indicator 9 for displaying the operating state of the digital sensor 3.
  • the indicator 9 can, for example, be an LED applied to the conductor track film ST.
  • the LED can, for example, parallel to the supply connections of the temperature sensor 3, which only lights up when the supply voltage in the permissible voltage range of the temperature sensor 3 is raised to a forward voltage value of the LED, such as from 1.8 V to 2.2 volts.
  • a capacitor 11 is optionally advantageously applied to the conductor track film ST, as a buffer capacitor to compensate for voltage drops.
  • the width of the conductor track film is dimensioned so that the temperature sensor and possibly other components can be accommodated. From the inventors' point of view, a width of approx. 3 mm is sufficient for a conductor track film.
  • the connecting line 5 can be electrically contacted via the contacts 52 directly or via a conductor track 7 with the evaluation unit 4 (microchip), e.g. by pressing or soldering.
  • Figure 3 shows a second example of a connecting line 5, designed as a conductor track film ST with a digital temperature sensor 3 and a gas sensor 12.
  • the gas sensor 12 can, for example, be a fire gas sensor (CO, CO 2 , NO x ).
  • the gas sensor 12 can be designed, for example, as a semiconductor gas sensor (MOX).
  • the gas sensor 12, like the temperature sensor 3, is advantageously mounted centrally in or on the detector housing 2 so that a gas can be detected independently of the direction.
  • the gas sensor 12, like the temperature sensor 3, is advantageously at the outer end of the conductor track ST on the surface OF, which is separated from the rest of the conductor track by a constriction ES, attached.
  • several further sensors 12 with the temperature sensor 3 can also be coupled to the conductor track 51 via a corresponding contact (ie digital data interface).
  • Figure 4 shows an exemplary “daisy chain arrangement” of a digital temperature sensor 3 with a plurality of gas sensors 12, 12 '.
  • the sensors 3, 12, 12 ′ are advantageously coupled in terms of data technology via a digital connecting line 5 and connected to the evaluation unit 4.
  • the information supplied by the sensors is evaluated and further processed in the evaluation unit 4. If necessary, an alarm message is output (optically and / or acoustically) and / or an alarm message is forwarded to a control center.
  • several temperature sensors 3 can also be arranged.
  • a “daisy chain arrangement” according to Figure 4 enables a simple detection of a plurality of sensor signals and a simple and inexpensive supply of these signals to the evaluation unit 4, since only a single connection line 5 is required.
  • the evaluation unit 4 is connected to the digital sensors 3, 12, 12 'in terms of data technology the connecting line 5 uses a digital input port and possibly a digital output port of the evaluation unit 4.
  • a so-called SPI ie a serial port interface
  • the evaluation unit 4 is provided for evaluating the detected ambient temperature, the digital temperature sensor 3 being connected for data purposes to the evaluation unit 4 via a connecting line 5 arranged on the inside of the detector housing.
  • the connecting line 5 is a strip conductor foil at one end of which the temperature sensor 3 and possibly the additional sensors 12, 12 'are attached at the level of the detector apex and which is attached to the inside of the housing via an adhesive connection.
  • the interior of the housing is free to accommodate additional detection modules for determining fire parameters.
  • the digital temperature sensor 3 can be applied to the conductor track film, for example, as an SMD component.
  • Hazard detectors in particular point detectors, with a detector housing, with a digital temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature, the digital temperature sensor having an on the inside of the detector housing arranged connecting line is connected to the evaluation unit in terms of data.
  • the connection line is a conductor track film at one end of which the temperature sensor is attached at the level of the detector apex and which is attached to the inside of the housing via an adhesive connection.
  • the digital temperature sensor can e.g. be applied as an SMD component on the conductor track film.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)

Description

Die Erfindung betrifft einen Gefahrenmelder, insbesondere einen Punktmelder, mit einem Meldergehäuse, mit einem zentral im oder am Meldergehäuse angebrachten Temperatursensor zur weitgehend richtungsunabhängigen Erfassung einer Temperatur in der Umgebung des Gefahrenmelders, und mit einer Auswerteeinheit zur Auswertung der erfassten Umgebungstemperatur. Weiterhin betrifft die Erfindung einen Gasmelder und einen Rauch- oder Brandmelder, ausgestattet gemäß dem gattungsgemäßen Gefahrenmelder.The invention relates to a hazard detector, in particular a point detector, with a detector housing, with a temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature. The invention also relates to a gas alarm and a smoke or fire alarm equipped according to the generic hazard alarm.

Gefahrenmelder können zur Erfassung einer Umgebungstemperatur vorgesehen sein, um z.B. die bei einem Brand oder Feuer entstehende Hitze zu detektieren und/oder um die Raumtemperatur im Sinne einer Raumklimaregelung zu regeln. Alternativ oder zusätzlich können die Gefahrenmelder auch Brandmelder oder Rauchmelder sein. Hierzu weisen diese eine Detektionseinheit zur Detektion von Rauchpartikeln auf. Die Detektionseinheit kann z.B. eine offene Messkammer oder eine geschlossene Messkammer für die Rauchdetektion aufweisen. Folglich wird ein solcher Brand- oder Rauchmelder auch als geschlossener oder offener Brand- oder Rauchmelder bezeichnet. Weiterhin kann es sich bei diesen Brand- oder Rauchmeldern um optische Brand- oder Rauchmelder handeln, welche eine nach dem Streuprinzip arbeitende optische Detektoreinheit zur Detektion von Rauchpartikeln aufweisen. Sie können alternativ oder zusätzlich eine nach dem akustooptischen Prinzip arbeitende Detektoreinheit und/oder einen oder mehrere Gassensoren zur Detektion brandtypischer Gase aufweisen.Hazard detectors can be provided to detect an ambient temperature, e.g. to detect the heat generated in a fire or fire and / or to regulate the room temperature in the sense of a room climate control. Alternatively or additionally, the hazard alarms can also be fire alarms or smoke alarms. For this purpose, they have a detection unit for detecting smoke particles. The detection unit can e.g. have an open measuring chamber or a closed measuring chamber for smoke detection. Consequently, such a fire or smoke alarm is also referred to as a closed or open fire or smoke alarm. Furthermore, these fire or smoke alarms can be optical fire or smoke alarms which have an optical detector unit that works according to the scattering principle for the detection of smoke particles. As an alternative or in addition, they can have a detector unit working according to the acousto-optical principle and / or one or more gas sensors for the detection of gases typical of a fire.

Aus dem Stand der Technik sind Gefahrenmelder mit einem oder mit mehreren Temperatursensoren bekannt. Gefahrenmelder mit mehreren Temperatursensoren sind aufwändig herzustellen, denn es werden für jeden Sensor Lötvorgänge benötigt.Hazard alarms with one or more temperature sensors are known from the prior art. Hazard detector with Several temperature sensors are complex to manufacture because soldering processes are required for each sensor.

Aus der US Patentanmeldung US2003/0020617A1 ist ein Gefahrenmelder mit einem Meldergehäuse, einem Temperatursensor zur Erfassung einer Umgebungstemperatur des Gefahrenmelders und mit einer Auswerteeinheit zur Auswertung der erfassten Umgebungstemperatur bekannt.From the US patent application US2003 / 0020617A1 a hazard detector with a detector housing, a temperature sensor for detecting an ambient temperature of the hazard detector and with an evaluation unit for evaluating the detected ambient temperature is known.

Bei Gefahrenmeldern mit einem Temperatursensor ist der Temperatursensor am Melderscheitel angebracht. Die Verbindung zu einer Auswerteeinheit, die sich auf einer Leiterpatte am Sockel des Gefahrenmelders befindet, erfolgt durch eine Verbindungsleitung, die durch den optisch sensiblen Innenraum des Meldergehäuses und durch die darin befindliche Messkammer für eine Rauchdetektion zu der Auswerteeinheit führt. Dies führt zu aufwändigen Konstruktionen hinsichtlich der Messkammer und erschwert die Montage des Gefahrenmelders.In the case of hazard detectors with a temperature sensor, the temperature sensor is attached to the top of the detector. The connection to an evaluation unit, which is located on a printed circuit board on the base of the hazard detector, is made by a connection line that leads through the optically sensitive interior of the detector housing and through the measuring chamber for smoke detection to the evaluation unit. This leads to complex constructions with regard to the measuring chamber and complicates the installation of the hazard alarm.

Es ist daher die Aufgabe der vorliegenden Erfindung, einen Gefahrenmelder mit einem Temperatursensor bereitzustellen, der zuverlässig arbeitet und eine einfache Montage erlaubt.It is therefore the object of the present invention to provide a hazard alarm with a temperature sensor which works reliably and allows simple assembly.

Die Aufgabe wird gelöst durch einen Gefahrenmelder, insbesondere einen Punktmelder, mit einem Meldergehäuse, mit einem zentral im oder am Meldergehäuse angebrachten Temperatursensor zur weitgehend richtungsunabhängigen Erfassung einer Temperatur in der Umgebung des Gefahrenmelders, und mit einer Auswerteeinheit zur Auswertung der erfassten Umgebungstemperatur, wobei der Temperatursensor ein digitaler Temperatursensor ist, und wobei der Temperatursensor über eine an der Innenseite des Meldergehäuses angeordnete Verbindungsleitung datentechnisch mit der Auswerteeinheit verbunden ist, wobei die Verbindungsleitung weg vom zentral angebrachten Temperatursensor zur Auswerteeinheit angeordnet ist, wobei die Verbindungsleitung als Leiterbahnfolie ausgestaltet ist, wobei der Temperatursensor auf der Leiterbahnfolie aufgebracht ist und wobei der digitale Temperatursensor einen Mikrocontroller und eine digitale Datenschnittstelle aufweist. Digitale Temperatursensoren sind kostengünstig und weisen eine geringe Bauteilgröße (1.0 mm x 0.8 mm) auf. Als Temperatursensor kann z.B. ein Halbleiter-Temperatursensor verwendet werden, bei dem eine Messung der Temperatur auf Basis von Halbleitermaterialien erfolgt. Als Temperatursensor kann z.B. der TMP104 von Texas Instruments, der TC 77 von Microchip oder der LM71A von National Semiconductor verwendet werden.The object is achieved by a hazard detector, in particular a point detector, with a detector housing, with a temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature, the temperature sensor is a digital temperature sensor, and wherein the temperature sensor is connected for data purposes to the evaluation unit via a connecting line arranged on the inside of the detector housing, the connecting line away from the centrally mounted temperature sensor is arranged for the evaluation unit, wherein the connecting line is designed as a conductor track film, wherein the temperature sensor is applied to the conductor track film and wherein the digital temperature sensor has a microcontroller and a digital data interface. Digital temperature sensors are inexpensive and have a small component size (1.0 mm x 0.8 mm). A semiconductor temperature sensor, for example, in which the temperature is measured on the basis of semiconductor materials, can be used as the temperature sensor. The TMP104 from Texas Instruments, the TC 77 from Microchip or the LM71A from National Semiconductor can be used as temperature sensor.

Dadurch, dass die Verbindungsleitung an der Innenseite des Gehäuses angebracht ist (z.B. durch ein entsprechendes Klebeband, durch die Verwendung einer aufklebbaren Leiterbahnfolie als Verbindungsleitung oder durch Halteclips, die an der Innenseite des Meldergehäuses angeformt sind), wird der Innenraum des Gehäuses für die Aufnahme und einfache Montage von Detektionsmodulen für verschiedene Brandkenngrößen (z.B. Messkammern für die Raucherkennung) freigehalten. Weiterhin weist der digitale Temperatursensor eine hohe EMV Festigkeit auf, da durch die Übertragung digitaler Signale ein hohes S/N (signal-to-noise-ratio), also ein hoher Signal-/Rauschabstand auf den einstrahlungsgefährdeten Leitungen besteht. Bei der Auswerteeinheit handelt es sich vorteilhafterweise um einen Mikrocontroller bzw. um eine prozessorgestützte Verarbeitungseinheit.The fact that the connection line is attached to the inside of the housing (e.g. by means of a suitable adhesive tape, by using a stick-on strip conductor foil as a connection line or by retaining clips that are molded on the inside of the detector housing) means that the interior of the housing is used for receiving and Easy installation of detection modules for various fire parameters (e.g. measuring chambers for smoke detection) kept free. Furthermore, the digital temperature sensor has a high level of EMC resistance, since the transmission of digital signals results in a high S / N (signal-to-noise ratio), i.e. a high signal-to-noise ratio on lines exposed to radiation. The evaluation unit is advantageously a microcontroller or a processor-supported processing unit.

Dadurch ist sichergestellt, dass die Verbindungsleitung nicht durch den Gehäuseinnenraum zur Auswerteeinheit geführt wird. Im Gehäuseinnenraum wird somit Platz freigehalten zur einfachen Aufnahme weiterer Detektionsmodule. Es können somit Standarddetektionsmodule (z.B. Standardmesskammern nach dem optischen Streuprinzip) für einen Einbau in das Gehäuse verwendet werden. Die Verwendung von teueren Sonderanfertigungen für Detektionsmodule ist nicht erforderlich.This ensures that the connection line is not led through the interior of the housing to the evaluation unit. Inside the housing space is thus kept free for the simple inclusion of further detection modules. Standard detection modules (eg standard measuring chambers based on the optical scattering principle) can thus be used for installation in the housing. It is not necessary to use expensive custom-made products for detection modules.

Leiterbahnfolien weisen Strom- und Steuerleitungen auf, und lassen sich an der Gehäuseinnenseite sehr leicht (z.B. durch Aufdrücken) formschlüssig anbringen. Die Leiterbahnfolie ist typischerweise metallisiert, üblicherweise aus Kupfer.Conductor foils have power and control lines and can be attached to the inside of the housing very easily (e.g. by pressing on) with a positive fit. The conductor track film is typically metallized, usually made of copper.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass die Verbindungsleitung als ein- oder zweiseitig kaschierte Leiterbahnfolie ausgestaltet ist. Somit kann eine Leiterbahnfolie, skaliert bezüglich der jeweils vorliegenden Einsatzanforderungen (z.B. Feuchtigkeit, Schmutz) an den Gefahrenmelder, verwendet werden.A further advantageous embodiment of the invention is that the connecting line is designed as a conductor track film laminated on one or both sides. This means that a conductor track film, scaled with regard to the respective application requirements (e.g. moisture, dirt), can be used on the hazard detector.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass über die Verbindungsleitung die Stromversorgung des Temperatursensors erfolgt. Somit ist keine separate Stromversorgung des Temperatursensors nötig. Weiterhin wird die Verkabelung im Gehäuse reduziert und der Montageaufwand des Gefahrenmelders vereinfacht.Another advantageous embodiment of the invention is that the power supply for the temperature sensor is provided via the connecting line. There is therefore no need for a separate power supply for the temperature sensor. Furthermore, the cabling in the housing is reduced and the installation effort of the hazard alarm is simplified.

Durch einen Mikrocontroller können z.B. im Sensor Vorauswertungen erfolgen, wie z.B. die Korrektur etwaig erkannter Messfehler.Using a microcontroller, for example, preliminary evaluations can be carried out in the sensor, such as the correction of any detected measurement errors.

Durch die digitale Datenschnittstelle ist eine einfache und sichere Ankopplung weiterer Bauteile am digitalen Temperatursensor möglich. Die Datenschnittstelle kann z.B. eine serielle Schnittstelle sein.The digital data interface enables simple and safe coupling of further components to the digital temperature sensor. The data interface can e.g. be a serial interface.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass auf der Verbindungsleitung ein Indikator angeordnet ist, die über die Auswerteeinheit elektrisch ansteuerbar ist. Hierbei handelt es sich vorteilhafterweise um einen akustischen (z.B. Sirene) oder optischen (z.B. LED) Indikator. Eine LED kann z.B. mit SMD Technik auf einer Leiterbahnfolie aufgebracht werden.A further advantageous embodiment of the invention is that an indicator is arranged on the connecting line, which indicator can be controlled electrically via the evaluation unit. This is advantageously an acoustic (e.g. siren) or optical (e.g. LED) indicator. An LED can e.g. be applied with SMD technology on a conductor track film.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass die Auswerteeinheit bei Erkennen einer Gefahrensituation eine Alarmmeldung (bzw. Warnmeldung) ausgibt und/oder die Alarmmeldung an eine Leitstelle über eine Kommunikationsverbindung meldet. Eine Alarmmeldung kann z.B. durch den Gefahrenmelder durch Aktivierung einer Sirene oder durch Aktivieren einer Lautsprecherdurchsage erfolgen. Es ist aber auch möglich, dass der Gefahrenmelder eine Sendeeinheit und/oder eine Kommunikationseinrichtung (z.B. Funkverbindung) zur Ausgabe von Alarm- oder Warnmeldungen an eine Brandmeldezentrale oder eine Gebäudeleitstelle umfasst. Üblicherweise handelt es sich um adressierbare Gefahrenmelder, die selektiv durch die Leitstelle abgefragt werden können. Empfangene Meldungen können somit einem Gefahrenmelder eindeutig zugeordnet werden.A further advantageous embodiment of the invention is that the evaluation unit issues an alarm message (or warning message) when a dangerous situation is recognized and / or reports the alarm message to a control center via a communication link. An alarm message can e.g. by the hazard detector by activating a siren or by activating a loudspeaker announcement. However, it is also possible for the hazard alarm to include a transmitter unit and / or a communication device (e.g. radio link) for outputting alarm or warning messages to a fire alarm center or a building control center. Usually these are addressable hazard detectors that can be selectively queried by the control center. Received messages can thus be clearly assigned to a hazard detector.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass mindestens ein weiterer zweiter Sensor mit dem Temperatursensor auf der Verbindungsleitung datentechnisch gekoppelt ist, wie z.B. in einer daisy-chain-Anordnung. So können z.B. ein bis mehrere Brandgassensoren zur Detektion brandtypischer Gase (z.B. CO, NOx) mit dem Temperatursensor datentechnisch gekoppelt werden. Damit ist es möglich mehrere Brandkenngrößen zu erfassen und auf einer gemeinsamen Verbindungsleitung an die Auswerteeinheit zu melden.A further advantageous embodiment of the invention is that at least one further second sensor is data-technically coupled to the temperature sensor on the connecting line, for example in a daisy-chain arrangement. For example, one or more fire gas sensors can be used for detection typical fire gases (e.g. CO, NO x ) are data-linked to the temperature sensor. This makes it possible to record several fire parameters and report them to the evaluation unit on a common connection line.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass es sich beim zweiten Sensor um einen Gassensor handelt. Die Erfassung und Berücksichtigung unterschiedlicher Brandkenngrößen führt zu genaueren Analysen in der Auswerteeinheit.Another advantageous embodiment of the invention is that the second sensor is a gas sensor. The detection and consideration of different fire parameters leads to more precise analyzes in the evaluation unit.

Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass der Gefahrenmelder eine Messkammer nach dem optischen Streuprinzip umfasst. Hierbei wird ein elektrooptischer Sensor zur Detektion des durch in der Raumluft vorhandenen Rauchs erzeugten Streulichts verwendet. Die Messkammer, auch als Labyrinth bezeichnet, ist typischerweise durch Blenden von Fremdlicht abgeschirmt. Weiterhin sind mindestens eine Lichtquelle und ein Lichtempfänger zur Arbeitsweise nach dem optischen Streuprinzip nötig. Dadurch, dass der Innenraum des Gehäuses des Gefahrenmelders frei gehalten ist, lässt sich die Messkammer leicht im Gefahrenmelder unterbringen und montieren.Another advantageous embodiment of the invention is that the hazard alarm comprises a measuring chamber based on the optical scattering principle. An electro-optical sensor is used to detect the scattered light generated by smoke in the room air. The measuring chamber, also known as a labyrinth, is typically shielded from external light by shielding. Furthermore, at least one light source and one light receiver are required to operate according to the optical scattering principle. Because the interior of the hazard alarm housing is kept free, the measuring chamber can easily be accommodated and installed in the hazard alarm.

Die Aufgabe wird weiterhin gelöst durch einen Gasmelder, ausgeführt gemäß dem gattungsgemäßen Gefahrenmelder. Ein Gasmelder, kombiniert mit einem Temperaturmelder, ermöglicht eine schnelle und sichere Erkennung von Gefahrensituationen in Gebäuden.The object is also achieved by a gas detector, implemented according to the generic hazard detector. A gas detector, combined with a temperature detector, enables dangerous situations in buildings to be recognized quickly and reliably.

Die Aufgabe wird weiterhin gelöst durch einen Rauch- oder Brandmelder, ausgeführt gemäß dem gattungsgemäßen Gefahrenmelder, wobei der Rauch- oder Brandmelder eine Detektionseinheit zur Detektion von Rauchpartikeln aufweist. Auch ein Rauch- oder Brandmelder, kombiniert mit einem Temperaturmelder, ermöglicht eine schnelle und sichere Erkennung von Gefahrensituationen in Gebäuden. Bei der Detektionseinheit kann es sich z.B. um eine optische Detektionseinheit zur Detektion von Rauchpartikeln nach dem Streuprinzip handeln. Prinzipiell kann die Detektionseinheit aber auch nach dem akustooptischen Prinzip oder nach dem Ionisationsprinzip arbeiten. Da der Platz im Innenraum des Meldergehäuses nicht durch den Temperatursensor beansprucht wird, kann der Melder prinzipiell sogar mehr als eine Detektionseinheit aufnehmen, die unterschiedliche Brandkenngrößen liefern können.The object is also achieved by a smoke or fire alarm, designed according to the generic hazard alarm, the smoke or fire alarm having a detection unit for detecting smoke particles. Also a Smoke or fire detectors, combined with a temperature detector, enable quick and reliable detection of dangerous situations in buildings. The detection unit can be, for example, an optical detection unit for detecting smoke particles according to the scattering principle. In principle, however, the detection unit can also work according to the acousto-optical principle or according to the ionization principle. Since the space in the interior of the detector housing is not taken up by the temperature sensor, the detector can in principle even accommodate more than one detection unit that can supply different fire parameters.

Die Erfindung sowie vorteilhafte Ausführungen der vorliegenden Erfindung werden am Beispiel der nachfolgenden Figuren erläutert. Dabei zeigen:

FIG 1
einen beispielhaften erfindungsgemäßen Gefahrenmelder als Punktmelder mit einem digitalen Temperatursensor und einer Messkammer,
FIG 2
ein erstes Beispiel für eine Verbindungsleitung, ausgeführt als Leiterbahnfolie mit einem digitalen Temperatursensor,
FIG 3
ein zweites Beispiel für eine Verbindungsleitung, ausgeführt als Leiterbahnfolie mit einem digitalen Temperatursensor und einem Gassensor, und
FIG 4
eine beispielhafte "daisy-chain-Anordnung" eines digitalen Temperatursensors mit mehreren Gassensoren.
The invention and advantageous embodiments of the present invention are explained using the example of the following figures. Show:
FIG 1
an exemplary hazard detector according to the invention as a point detector with a digital temperature sensor and a measuring chamber,
FIG 2
a first example of a connection line, designed as a conductor strip with a digital temperature sensor,
FIG 3
a second example of a connecting line, designed as a conductor track film with a digital temperature sensor and a gas sensor, and
FIG 4
an exemplary "daisy-chain arrangement" of a digital temperature sensor with several gas sensors.

Gefahrenmelder können als Punktmelder ausgestaltet sein. Punktmelder können zur Erfassung einer Umgebungstemperatur vorgesehen sein, um z.B. die bei einem Brand oder Feuer entstehende Hitze zu detektieren und/oder um die Raumtemperatur im Sinne einer Raumklimaregelung zu regeln. Alternativ oder zusätzlich können die Punktmelder auch Brandmelder oder Rauchmelder sein. Hierzu weisen diese eine Detektionseinheit zur Detektion von Rauchpartikeln auf. Die Detektionseinheit kann z.B. eine offene Messkammer (8) oder eine geschlossene Messkammer für die Rauchdetektion aufweisen. Folglich wird ein solcher Brand- oder Rauchmelder auch als geschlossener oder offener Brand- oder Rauchmelder bezeichnet. Weiterhin kann es sich bei diesen Brand- oder Rauchmeldern um optische Brand- oder Rauchmelder handeln, welche eine nach dem Streuprinzip arbeitende optische Detektoreinheit zur Detektion von Rauchpartikeln aufweisen. Sie können alternativ oder zusätzlich eine nach dem akustooptischen Prinzip arbeitende Detektoreinheit und/oder einen oder mehrere Gassensoren zur Detektion brandtypischer Gase aufweisen.Hazard detectors can be designed as point detectors. Point detectors can be provided to detect an ambient temperature, for example to detect the heat generated in a fire or fire and / or around room temperature to be regulated in terms of room climate regulation. Alternatively or additionally, the point detectors can also be fire detectors or smoke detectors. For this purpose, they have a detection unit for detecting smoke particles. The detection unit can, for example, have an open measuring chamber (8) or a closed measuring chamber for smoke detection. Consequently, such a fire or smoke alarm is also referred to as a closed or open fire or smoke alarm. Furthermore, these fire or smoke alarms can be optical fire or smoke alarms which have an optical detector unit that works according to the scattering principle for the detection of smoke particles. As an alternative or in addition, they can have a detector unit working according to the acousto-optical principle and / or one or more gas sensors for the detection of gases typical of a fire.

Punktmelder können über eine gemeinsame Melderleitung, insbesondere über eine Zweidrahtleitung, signal- und/oder datentechnisch mit einer Brandmeldezentrale (z.B. Feuerwehr oder Gebäudeleitstelle) verbunden sein. Es können mehrere derartiger Brandmelder in Meldergruppen oder Melderlinien an eine Brandmeldezentrale angeschlossen sein, über die typischerweise auch die elektrische Versorgung der Brandmelder mit Strom erfolgt. Alternativ oder zusätzlich können die Punktmelder "drahtlos" ausgeführt sein. In diesem Fall kommunizieren die Punktmelder drahtlos, wie z.B. über Funk, mit der Brandmeldezentrale und/oder mit benachbarten weiteren Punktmeldern.Point detectors can be connected to a fire alarm center (e.g. fire brigade or building control center) for signaling and / or data technology via a common detector line, in particular a two-wire line. Several such fire alarms in alarm groups or alarm lines can be connected to a central fire alarm system, via which the fire alarms are typically also supplied with electricity. Alternatively or additionally, the point detectors can be designed "wirelessly". In this case the point detectors communicate wirelessly, e.g. via radio, with the fire alarm center and / or with other neighboring point detectors.

Figur 1 zeigt einen beispielhaften erfindungsgemäßen Gefahrenmelder 1 als Punktmelder mit einem digitalen Temperatursensor 3 und einer Messkammer 8. Der Gefahrenmelder 1 kann zur Befestigung an einem Sockel SO ausgebildet sein. Der Gefahrenmelder 1 weist im Wesentlichen ein sphärisches Gehäuse 2, typischerweise aus Kunststoff, aus. Das Gehäuse 2 kann ein- oder mehrteilig ausgebildet sein. Im Gehäuse 2 sind ein Schaltungsträger 6 (Platine, Leiterplatte) und die Detektionsmodule zum Erfassen von Gefahrenkenngrößen (z.B. Brandkenngrößen) angeordnet. Der Sockel SO ist zur Montage an der Decke des zu überwachenden Raumes vorgesehen, wobei die Montage entweder direkt auf einer Unterputzdose oder aufputz mit oder ohne Sockelzusatz erfolgt, z.B. durch Schraub-, Steck- oder Klebeverbindungen. Der Sockel SO besteht üblicherweise im Wesentlichen aus einer kreisförmigen Platte und einem nach unten ragenden Randsteg und enthält Verbindungsmechanismen (z.B. Steckmechanismus) zur Anbringung des Gehäuses 2. Weiterhin kann der Sockel SO Anschlusskontakte für eine externe Stromzufuhr oder für Datenverbindungen (z.B. zu weiteren Gefahrenmeldern oder zu einer Leitstelle) enthalten. Figure 1 shows an exemplary hazard detector 1 according to the invention as a point detector with a digital temperature sensor 3 and a measuring chamber 8. The hazard detector 1 can be designed for attachment to a base SO. The hazard alarm 1 essentially has a spherical housing 2, typically made of plastic. The housing 2 can be constructed in one or more parts. In the housing 2 are a circuit carrier 6 (circuit board, printed circuit board) and the detection modules for detecting hazard parameters (e.g. fire parameters) arranged. The base SO is intended for mounting on the ceiling of the room to be monitored, with mounting either directly on a flush-mounted box or on-wall with or without a base attachment, for example by screw, plug or adhesive connections. The base SO usually consists essentially of a circular plate and a downwardly protruding edge web and contains connection mechanisms (e.g. plug-in mechanism) for attaching the housing 2. Furthermore, the base SO can have connection contacts for an external power supply or for data connections (e.g. to other hazard alarms or to a control center).

Neben dem Temperatursensor 3 kann der Gefahrenmelder 1 weitere Detektionseinheiten zur Erkennung zusätzlicher Gefahrenkenngrößen enthalten. Bei den Detektionseinheiten kann es sich zum Beispiel um Komponenten zur Detektion von Rauchpartikeln nach dem optischen Streuprinzip handeln. Solche optische Detektionseinheiten sind für die Messung von durch Rauch verursachten Streulicht vorgesehen. Dabei wird mindestens eine Lichtquelle, ein Lichtempfänger, eine Messkammer 8 und ein Labyrinthsystem mit an der Peripherie der Messkammer 8 angeordneten Blenden verwendet, wobei die mindestens eine Lichtquelle und der Lichtempfänger im Gehäuse 2 vorteilhafterweise auf der Unterseite einer Trägerplatte TP befestigt sind. Der Rauch kann dabei durch im Gehäuse 2 befindliche Raucheintrittsöffnungen RO in die Messkammer 8 gelangen. Die Trägerplatte TP kann z.B. durch eine Steckverbindung auf der Unterseite des Sockels SO fixiert sein.In addition to the temperature sensor 3, the hazard alarm 1 can contain further detection units for recognizing additional hazard parameters. The detection units can, for example, be components for detecting smoke particles according to the optical scattering principle. Such optical detection units are provided for the measurement of scattered light caused by smoke. At least one light source, a light receiver, a measuring chamber 8 and a labyrinth system with diaphragms arranged on the periphery of the measuring chamber 8 are used, the at least one light source and the light receiver in the housing 2 advantageously being attached to the underside of a carrier plate TP. The smoke can enter the measuring chamber 8 through smoke inlet openings RO located in the housing 2. The carrier plate TP can e.g. be fixed by a plug connection on the underside of the base SO.

Der Schaltungsträger 6 (Platine, Leiterplatte) weist eine Auswerteeinheit 4 und unter Umständen weitere elektronische Elemente auf, die üblicherweise in SMD-Technik (surfacemounted device) oder durch Durchsteckmontage (trough-hole technology) auf dem Schaltungsträger 6 angebracht sind. Die elektronische Auswerteeinheit 4 ist typischerweise in integrierter Form, z.B. als Mikrocontroller realisiert. Die Auswerteeinheit 4 dient im Wesentlichen zur Erfassung und Auswertung der Umgebungstemperatur oder weiterer Gefahrenkenngrößen im Bereich des Punktmelders. Weiterhin werden in der Auswerteeinheit 4 die Gefahrenkenngrößen (z.B. Brandkenngrößen) weiterer Detektionseinheiten (soweit im Gefahrenmelder 1 vorhanden) erfasst und ausgewertet. In der Auswerteeinheit 4 kann dann eine Analyse basierend auf einer Gesamtschau erfasster Kenngrößen erfolgen. Die Auswerteeinheit 4 veranlasst eine Ausgabe (z.B. Blitzlicht, Sirene) und/oder Weitergabe (z.B. an eine Leitstelle) der in der Analyse abgeleiteten Information. Die Weitergabe kann dabei drahtgebunden oder drahtlos durch eine Kommunikationsverbindung 10 erfolgen. Die Auswerteeinheit 4 kann z.B. auf der Basis definierter Schwellwerte für Gefahrenkenngrößen oder über eine Mittelwertbildung der Gefahrenkenngrößen über einen definierten Zeitraum (z.B. 30 Sekunden) hinweg die Ausgabe (Alarm) oder die Weiterleitung an die Leitstelle veranlassen.The circuit carrier 6 (circuit board, printed circuit board) has an evaluation unit 4 and, under certain circumstances, other electronic elements that are usually attached to the circuit carrier 6 using SMD technology (surfacemounted device) or through-hole mounting. The electronic evaluation unit 4 is typically implemented in an integrated form, for example as a microcontroller. The evaluation unit 4 essentially serves to record and evaluate the ambient temperature or other hazard parameters in the area of the point detector. Furthermore, the hazard parameters (for example fire parameters) of further detection units (if present in hazard alarm 1) are recorded and evaluated in the evaluation unit 4. In the evaluation unit 4, an analysis can then take place based on an overall view of the recorded parameters. The evaluation unit 4 causes an output (for example flashlight, siren) and / or transmission (for example to a control center) of the information derived in the analysis. The transfer can take place in a wired or wireless manner through a communication link 10. The evaluation unit 4 can initiate the output (alarm) or forwarding to the control center, for example on the basis of defined threshold values for hazard parameters or by averaging the hazard parameters over a defined period (for example 30 seconds).

Die Kommunikationsverbindung 10 kann z.B. durch eine Funkverbindung (mit Sender-/Empfängereinheit) erfolgen, wobei der Gefahrenmelder 1 mindestens eine Sendereinheit umfasst. In Figur 1 ist die Kommunikationsverbindung 10 beispielhaft durch einen Funkchip auf dem Schaltungsträger 6 realisiert.The communication link 10 can be established, for example, by a radio link (with a transmitter / receiver unit), the hazard alarm 1 comprising at least one transmitter unit. In Figure 1 the communication connection 10 is implemented, for example, by a radio chip on the circuit carrier 6.

Der Schaltungsträger 6 (Platine, Leiterplatte) kann auf dem Sockel SO angebracht sein oder z.B. auf der Trägerplatte TP (vorteilhafterweise auf der Seite der Trägerplatte TP, die den Detektionseinheiten abgewandt ist). Der Schaltungsträger 6 kann dabei z.B. durch eine Steckverbindung befestigt sein.The circuit carrier 6 (circuit board, printed circuit board) can be attached to the base SO or e.g. on the carrier plate TP (advantageously on the side of the carrier plate TP that faces away from the detection units). The circuit carrier 6 can e.g. be attached by a plug connection.

Der digitale Temperatursensor 3 ist an einer messtechnisch günstigen Stelle zentral im oder am Meldergehäuse 2 angebracht und ermöglicht die weitgehend richtungsunabhängige Erfassung der Temperatur in der Umgebung des Gefahrenmelders 1.The digital temperature sensor 3 is mounted centrally in or on the detector housing 2 at a location that is favorable in terms of measurement technology and enables the temperature in the vicinity of the hazard detector 1 to be recorded largely independently of the direction.

Vorteilhafterweise ist der digitale Temperatursensor 3 auf einer mittigen Lotachse LA des Meldersockels SO an der Innenseite des Meldergehäuses 2 am Melderscheitel MS angebracht. In der Achse LA des Melders 1 angebrachte Temperatursensoren 3 arbeiten völlig richtungsunabhängig.The digital temperature sensor 3 is advantageously attached to a central plumb line LA of the detector base SO on the inside of the detector housing 2 on the detector apex MS. Temperature sensors 3 mounted in the axis LA of the detector 1 work completely independent of direction.

Vorteilhafterweise hat der Gefahrenmelder 1 am Melderscheitel MS eine Melderkuppe MK in der der Temperatursensor 3 untergebracht ist. Die Melderkuppe MK besteht aus einem oberen ringförmigen Teil und einer von diesem beabstandeten, die Kuppe des Melders bildenden Platte 22, welche mit dem oberen ringförmigen Teil durch bogen- oder rippenartige Stege 21 verbunden ist. Vorteilhafterweise ist die Höhe der Melderkuppe MK gerade so hoch, dass der Temperatursensor 3 innerhalb der Melderkuppe MK am Melderscheitel MS in der Achse LA angebracht werden kann. Der Temperatursensor 3 kann z.B. durch einen Klemmsitz oder eine Steckverbindung in der Melderkuppe MK befestigt sein. Der Temperatursensor 3 kann aber auch an der Verbindungsleitung 5 befestigt sein.Advantageously, the hazard detector 1 on the detector apex MS has a detector dome MK in which the temperature sensor 3 is accommodated. The alarm dome MK consists of an upper annular part and a plate 22, which is spaced apart from this and forms the dome of the detector, which is connected to the upper annular part by arched or rib-like webs 21. Advantageously, the height of the alarm dome MK is just high enough that the temperature sensor 3 can be attached within the alarm dome MK on the alarm apex MS in the axis LA. The temperature sensor 3 can e.g. be fastened by a press fit or a plug connection in the alarm head MK. The temperature sensor 3 can, however, also be attached to the connecting line 5.

In der Darstellung gemäß Figur 1 ist der Temperatursensor 3 über eine an der Innenseite IS des Meldergehäuses 2 angeordneten Verbindungsleitung 5 datentechnisch mit der Auswerteeinheit 4 verbunden. Die Verbindungsleitung 5 führt aus dem Gehäuse 2 durch eine Durchlassöffnung DO zum Temperatursensor 3. Die Verbindungsleitung 5 ist durch eine Leiterbahn 7 mit der Auswerteeinheit 4 datentechnisch verbunden. Vorteilhafterweise erfolgt die Stromversorgung des Temperatursensor 3 über die Verbindungsleitung 5. Die Verbindungsleitung 5 kann z.B. durch eine Klebeverbindung an der Innenseite IS des Meldergehäuses 2 befestigt sein. Dadurch dass sich der Temperatursensor 3 und die Verbindungsleitung 5 in der Peripherie des Meldergehäuses 2 befinden, ist im Innenraum des Meldergehäuses 2 Platz für eine ungestörte Aufnahme weiterer Detektionseinheiten (z.B. für die Brand- oder Rauchdetektion).In the representation according to Figure 1 the temperature sensor 3 is connected in terms of data to the evaluation unit 4 via a connecting line 5 arranged on the inside IS of the detector housing 2. The connecting line 5 leads from the housing 2 through a passage opening DO to the temperature sensor 3. The connecting line 5 is connected to the evaluation unit 4 for data purposes by a conductor track 7. The power supply to the temperature sensor 3 is advantageously provided via the connecting line 5. The connecting line 5 can be attached to the inside IS of the detector housing 2, for example, by an adhesive connection. Because the temperature sensor 3 and the connecting line 5 are located in the periphery of the detector housing 2, there is space in the interior of the detector housing 2 for undisturbed accommodation of further detection units (e.g. for fire or smoke detection).

Vorteilhafterweise ist die Verbindungsleitung 5 als ein- oder zweiseitig kaschierte Leiterbahnfolie ausgestaltet. Leiterbahnfolien nehmen wenig Raum ein, sind flexibel biegbar an die Umgebung anpassbar und leicht mit elektronischen Bauelementen kontaktierbar.Advantageously, the connecting line 5 is designed as a conductor track film laminated on one or two sides. Conductor foils take up little space, can be flexibly bendable, adaptable to the environment and can easily be contacted with electronic components.

Figur 2 zeigt ein erstes Beispiel für eine Verbindungsleitung 5, ausgeführt als Leiterbahnfolie mit einem digitalen Temperatursensor 3. Eine Leiterbahnfolie weist zwischen Isolierschichten angeordnete Leiterschichten 51 auf, die über Kontakte 52 datentechnisch und leistungsmäßig (Stromzufuhr) kontaktierbar sind. In der Darstellung gemäß Figur 2 stellt die Leiterbahnfolie den Sensorträger ST dar, auf deren Oberfläche OF der digitale Temperatursensor 3 aufgebracht ist. Der digitale Temperatursensor 3 kann auf der Oberfläche OF der Leiterbahnfolie z.B. durch Einpressen, Löten, Bonden oder durch einen Leitkleber aufgebracht werden. Vorteilhafterweise ist der Temperatursensor 3 an einem Ende der Leiterbahnfolie ST aufgebracht, wobei dieses Ende der Leiterbahnfolie ST durch eine Einschnürung ES (z.B. gestanzte Aussparung) von der restlichen Leiterbahnfolie ST thermisch gut entkoppelt ist. Dadurch werden Messfehler am Sensor vermieden. Ein weiterer Vorteil ist, dass Temperaturänderungen im Bereich des Temperatursensors über die großflächige, vorzugsweise beidseitige Leiterbahnfläche mit hoher Wärmeleitfähigkeit an einen Anschlusskontakt des Temperatursensors 3, wie der in Figur 2 gezeigte rechte untere Anschluss, weitergeleitet werden können. Figure 2 shows a first example of a connecting line 5, designed as a conductor track film with a digital temperature sensor 3. A conductor track film has conductor layers 51 arranged between insulating layers, which can be contacted via contacts 52 in terms of data and power (power supply). In the representation according to Figure 2 the conductor track film represents the sensor carrier ST, on the surface OF of which the digital temperature sensor 3 is applied. The digital temperature sensor 3 can be applied to the surface OF of the conductor track film, for example by pressing in, soldering, bonding or by means of a conductive adhesive. The temperature sensor 3 is advantageously applied to one end of the conductor track film ST, this end of the conductor track film ST being thermally well decoupled from the rest of the conductor track film ST by a constriction ES (eg, punched recess). This avoids measurement errors on the sensor. Another advantage is that temperature changes in the area of the temperature sensor can be transferred to a connection contact of the temperature sensor 3 via the large-area, preferably bilateral, conductive track surface with high thermal conductivity, as in FIG Figure 2 lower right connection shown, can be forwarded.

Die Leiterbahnfolie ST kann optional einen Indikator 9 zur Anzeige des Betriebszustandes des digitalen Sensors 3 aufweisen. Beim Indikator 9 kann es sich z.B. um eine auf der Leiterbahnfolie ST aufgebrachte LED handeln. Die LED kann z.B. parallel zu den Versorgungsanschlüssen des Temperatursensors 3 angeordnet sein, wobei diese erst leuchtet, wenn die Versorgungsspannung im zulässigen Spannungsbereich des Temperatursensors 3 auf einen Flussspannungswert der LED angehoben wird, wie z.B. von 1,8 V auf 2,2 Volt. Weiterhin ist optional vorteilhafterweise auf der Leiterbahnfolie ST ein Kondensator 11 aufgebracht, als Pufferkondensator zum Ausgleichen von Spannungseinbrüchen.The conductor track film ST can optionally have an indicator 9 for displaying the operating state of the digital sensor 3. The indicator 9 can, for example, be an LED applied to the conductor track film ST. The LED can, for example, parallel to the supply connections of the temperature sensor 3, which only lights up when the supply voltage in the permissible voltage range of the temperature sensor 3 is raised to a forward voltage value of the LED, such as from 1.8 V to 2.2 volts. Furthermore, a capacitor 11 is optionally advantageously applied to the conductor track film ST, as a buffer capacitor to compensate for voltage drops.

Die Breite der Leiterbahnfolie ist so bemessen, dass der Temperatursensor und eventuell weitere Bauteile aufgenommen werden können. Aus Sicht der Erfinder ist eine Breite von ca. 3mm für eine Leiterbahnfolie ausreichend.The width of the conductor track film is dimensioned so that the temperature sensor and possibly other components can be accommodated. From the inventors' point of view, a width of approx. 3 mm is sufficient for a conductor track film.

Die Verbindungsleitung 5 kann über die Kontakte 52 direkt oder über eine Leiterbahn 7 mit der Auswerteeinheit 4 (Mikrochip) elektrisch kontaktiert werden, z.B. durch Pressen oder Löten.The connecting line 5 can be electrically contacted via the contacts 52 directly or via a conductor track 7 with the evaluation unit 4 (microchip), e.g. by pressing or soldering.

Figur 3 zeigt ein zweites Beispiel für eine Verbindungsleitung 5, ausgeführt als Leiterbahnfolie ST mit einem digitalen Temperatursensor 3 und einem Gassensor 12. Durch die Aufbringung des digitalen Temperatursensors 3 und des Gassensors 12 auf der Leiterbahnfolie ST wird eine Sensoranordnung geschaffen, die den Innenraum des Gefahrenmelders 1 räumlich frei hält, so dass weitere Detektionsmodule (mit Messkammern) leicht im Innenraum des Gefahrenmelders 1 untergebracht werden können. Beim Gassensor 12 kann es sich z.B. um einen Brandgassensor (CO, CO2, NOx) handeln. Der Gassensor 12 kann z.B. als Halbleiter-Gassensor (MOX) ausgebildet sein. Der Gassensor 12 ist vorteilhafterweise wie der Temperatursensor 3 zentral im oder am Meldergehäuse 2 angebracht, damit ein Gas richtungsunabhängig detektiert werden kann. Weiterhin ist der Gassensor 12 vorteilhafterweise wie der Temperatursensor 3 am äusseren Ende der Leiterbahn ST auf der Oberfläche OF, die von der restlichen Leiterbahn durch eine Einschnürung ES abgeteilt ist, angebracht. Somit entsteht eine kompakte Sensoranordnung, die von der restlichen Leiterbahn ST thermisch entkoppelt ist. Prinzipiell können auch mehrere weitere Sensoren 12 mit dem Temperatursensor 3 über eine entsprechende Kontaktierung (d.h. digitale Datenschnittstelle) mit der Leiterbahn 51 gekoppelt werden. Vorteilhafterweise sind die Sensoren 3, 12, 12' als integrierte Schaltkreise (IC) ausgebildet, dies ermöglicht u.a. eine einfache und platzsparende Anbringung und Kontaktierung auf einer elektrischen Leiterbahn. Vorteilhafterweise sind die Sensoren 3, 12, 12' mit einer digitalen, adressierbaren Datenschnittstelle (z.B. SMAART Wire Interface™) ausgestattet. Dies stellt neben einer einfachen Kontaktierung auch eine hohe Störunempfindlichkeit gegenüber EMV-Problemen (Elektromagnetische Verträglichkeit) dar. Figure 3 shows a second example of a connecting line 5, designed as a conductor track film ST with a digital temperature sensor 3 and a gas sensor 12. By applying the digital temperature sensor 3 and the gas sensor 12 on the conductor track film ST, a sensor arrangement is created that spatially defines the interior of the hazard alarm 1 keeps free so that further detection modules (with measuring chambers) can easily be accommodated in the interior of the hazard alarm 1. The gas sensor 12 can, for example, be a fire gas sensor (CO, CO 2 , NO x ). The gas sensor 12 can be designed, for example, as a semiconductor gas sensor (MOX). The gas sensor 12, like the temperature sensor 3, is advantageously mounted centrally in or on the detector housing 2 so that a gas can be detected independently of the direction. Furthermore, the gas sensor 12, like the temperature sensor 3, is advantageously at the outer end of the conductor track ST on the surface OF, which is separated from the rest of the conductor track by a constriction ES, attached. This creates a compact sensor arrangement which is thermally decoupled from the rest of the conductor track ST. In principle, several further sensors 12 with the temperature sensor 3 can also be coupled to the conductor track 51 via a corresponding contact (ie digital data interface). The sensors 3, 12, 12 'are advantageously designed as integrated circuits (IC), which among other things enables simple and space-saving attachment and contacting on an electrical conductor track. The sensors 3, 12, 12 'are advantageously equipped with a digital, addressable data interface (for example SMAART Wire Interface ™ ). In addition to simple contact, this also represents a high level of immunity to interference with respect to EMC problems (electromagnetic compatibility).

Figur 4 zeigt eine beispielhafte "daisy-chain-Anordnung" eines digitalen Temperatursensors 3 mit mehreren Gassensoren 12, 12'. Die Sensoren 3, 12, 12' sind vorteilhafterweise über eine digitale Verbindungsleitung 5 datentechnisch gekoppelt und mit der Auswerteeinheit 4 verbunden. In der Auswerteeinheit 4 werden die von den Sensoren gelieferten Informationen ausgewertet und weiterverarbeitet. Gegebenenfalls wird eine Alarmmeldung ausgegeben (optisch und/oder akustisch) und/oder eine Alarmmeldung wird en eine Leitstelle weitergeleitet. Prinzipiell können in der "daisy-chain-Anordnung" gemäß Figur 4 auch mehrere Temperatursensoren 3 angeordnet sein. Eine "daisy-chain-Anordnung" gemäß Figur 4 ermöglicht eine einfache Detektion mehrerer Sensorsignale und eine einfache und kostengünstige Zuführung dieser Signale zur Auswerteeinheit 4, da nur eine einzige Verbindungsleitung 5 benötigt wird. Figure 4 shows an exemplary “daisy chain arrangement” of a digital temperature sensor 3 with a plurality of gas sensors 12, 12 '. The sensors 3, 12, 12 ′ are advantageously coupled in terms of data technology via a digital connecting line 5 and connected to the evaluation unit 4. The information supplied by the sensors is evaluated and further processed in the evaluation unit 4. If necessary, an alarm message is output (optically and / or acoustically) and / or an alarm message is forwarded to a control center. In principle, in the "daisy-chain arrangement" according to Figure 4 several temperature sensors 3 can also be arranged. A "daisy chain arrangement" according to Figure 4 enables a simple detection of a plurality of sensor signals and a simple and inexpensive supply of these signals to the evaluation unit 4, since only a single connection line 5 is required.

Im einfachsten Fall wird zur datentechnischen Verbindung der Auswerteeinheit 4 mit den digitalen Sensoren 3, 12, 12' über die Verbindungsleitung 5 ein digitaler Eingangsport und ggf. ein digitaler Ausgangsport der Auswerteeinheit 4 verwendet. Alternativ kann ein bekanntes sogenanntes SPI, d.h. ein Serial-Port-Interface verwendet werden. Die Auswerteeinheit 4 ist zur Auswertung der erfassten Umgebungstemperatur vorgesehen, wobei der digitale Temperatursensor 3 über eine an der Innenseite des Meldergehäuses angeordneten Verbindungsleitung 5 datentechnisch mit der Auswerteeinheit 4 verbunden ist. Vorteilhafterweise handelt es sich bei der Verbindungsleitung 5 um eine Leiterbahnfolie an deren einem Ende auf Höhe des Melderscheitels der Temperatursensor 3 und gegebenenfalls die weiteren Sensoren 12, 12' angebracht sind und die über eine Klebeverbindung an der Innenseite des Gehäuses befestigt ist. Dadurch ist der Gehäuseinnenraum frei für eine Aufnahme weiterer Detektionsmodule zur Bestimmung von Brandkenngrößen. Der digitale Temperatursensor 3 kann z.B. als SMD-Bauelement auf der Leiterbahnfolie aufgebracht sein.In the simplest case, the evaluation unit 4 is connected to the digital sensors 3, 12, 12 'in terms of data technology the connecting line 5 uses a digital input port and possibly a digital output port of the evaluation unit 4. Alternatively, a so-called SPI, ie a serial port interface, can be used. The evaluation unit 4 is provided for evaluating the detected ambient temperature, the digital temperature sensor 3 being connected for data purposes to the evaluation unit 4 via a connecting line 5 arranged on the inside of the detector housing. Advantageously, the connecting line 5 is a strip conductor foil at one end of which the temperature sensor 3 and possibly the additional sensors 12, 12 'are attached at the level of the detector apex and which is attached to the inside of the housing via an adhesive connection. As a result, the interior of the housing is free to accommodate additional detection modules for determining fire parameters. The digital temperature sensor 3 can be applied to the conductor track film, for example, as an SMD component.

Der erfindungsgemäße Gefahrenmelder 1 hat insbesondere folgende Vorteile:

  • nur ein Lotvorgang zur Anbringung des Temperatursensors erforderlich;
  • direktes Einlesen der Temperaturdaten des Temperatursensors durch SPI-Port des Mikrocontrollers;
  • Platzierung an messtechnisch optimaler Position (vorteilhafterweise am Melderscheitel) zur richtungsunabhängigen Detektion von Gefahrenkenngrößen;
  • geringe Bauteil und Montagekosten;
  • Integration weiterer adressierbarer Sensoren, z.B. digitaler Gassensoren durch einfaches Aufgbringen auf eine elektrische Leiterbahn;
  • Integration z.B. einer Indikator-LED möglich, für ein leichtes Erkennen des Betriebszustandes des Melders;
  • SPI (Serial Peripheral Interface) oder ein anderes digitales, direkt vom Mikrocontroler (µC) der Auswerteeinheit unterstütztes Protokoll;
  • Verbesserung der EMV Festigkeit durch Erhöhung des Signal-/Rauschabstands auf den einstrahlungsgefährdeten Leitungen;
  • Verbesserung der Richtungsunabhängigkeit durch optimale zentrale Messposition (z.B. auf einer mittigen Lotachse des Meldersockels an der Innenseite des Meldergehäuses am Melderscheitel).
The hazard alarm 1 according to the invention has the following advantages in particular:
  • only one soldering process required to attach the temperature sensor;
  • direct reading of the temperature data from the temperature sensor through the SPI port of the microcontroller;
  • Placement at the optimal position in terms of measurement technology (advantageously at the top of the detector) for the direction-independent detection of hazard parameters;
  • low component and assembly costs;
  • Integration of further addressable sensors, eg digital gas sensors by simply applying them to an electrical conductor path;
  • Integration of an indicator LED possible, for example, for easy recognition of the operating status of the detector;
  • SPI (Serial Peripheral Interface) or another digital protocol supported directly by the microcontroller (µC) of the evaluation unit;
  • Improvement of the EMC stability by increasing the signal-to-noise ratio on the lines exposed to radiation;
  • Improvement of direction independence through an optimal central measuring position (e.g. on a central plumb line of the detector base on the inside of the detector housing at the detector apex).

Gefahrenmelder, insbesondere Punktmelder, mit einem Meldergehäuse, mit einem zentral im oder am Meldergehäuse angebrachten digitalen Temperatursensor zur weitgehend richtungsunabhängigen Erfassung einer Temperatur in der Umgebung des Gefahrenmelders, und mit einer Auswerteeinheit zur Auswertung der erfassten Umgebungstemperatur, wobei der digitale Temperatursensor über eine an der Innenseite des Meldergehäuses angeordneten Verbindungsleitung datentechnisch mit der Auswerteeinheit verbunden ist. Erfindungsgemäss handelt es sich bei der Verbindungsleitung um eine Leiterbahnfolie an deren einem Ende auf Höhe des Melderscheitels der Temperatursensor angebracht ist und die über eine Klebeverbindung an der Innenseite des Gehäuses befestigt ist. Dadurch ist der Gehäuseinnenraum frei für eine Aufnahme weiterer Detektionsmodule zur Bestimmung von Brandkenngrößen. Der digitale Temperatursensor kann z.B. als SMD-Bauelement auf der Leiterbahnfolie aufgebracht sein.Hazard detectors, in particular point detectors, with a detector housing, with a digital temperature sensor mounted centrally in or on the detector housing for largely direction-independent detection of a temperature in the vicinity of the hazard detector, and with an evaluation unit for evaluating the detected ambient temperature, the digital temperature sensor having an on the inside of the detector housing arranged connecting line is connected to the evaluation unit in terms of data. According to the invention, the connection line is a conductor track film at one end of which the temperature sensor is attached at the level of the detector apex and which is attached to the inside of the housing via an adhesive connection. As a result, the interior of the housing is free to accommodate additional detection modules for determining fire parameters. The digital temperature sensor can e.g. be applied as an SMD component on the conductor track film.

Claims (10)

  1. Warning system (1), in particular point detector, with a detector housing (2), with a temperature sensor (2) attached centrally in or on the detector housing (2) for detecting a temperature in the surroundings of the warning system (1) in a largely direction-independent manner, and with an evaluation unit (4) for evaluating the detected ambient temperature, wherein the temperature sensor (3) is a digital temperature sensor, and the temperature sensor (3) is connected via data link to the evaluation unit (4) by way of a connecting line (5) arranged on the inside (IS) of the detector housing (2), wherein the connecting line (5) is arranged away from the centrally attached temperature sensor (3) in respect of the evaluation unit (4), wherein the connecting line (5) is embodied as a conductor path film, wherein the temperature sensor (3) is attached to the conductor path film and wherein the digital temperature sensor (3) has a microcontroller and a digital data interface.
  2. Warning system (1) according to claim 1, wherein the connecting line (5) is embodied as a conductor path film which is laminated on one or two sides.
  3. Warning system (1) according to one of the preceding claims, wherein power is supplied to the temperature sensor (3) by way of the connecting line (5).
  4. Warning system (1) according to one of the preceding claims, wherein an indicator (9), which can be electrically actuated by way of the evaluation unit (4), is arranged on the connecting line.
  5. Warning system (1) according to one of the preceding claims, wherein the evaluation unit (4) outputs an alarm message if a hazardous situation is identified and/or reports the alarm message to a control centre by way of a communication link (10).
  6. Warning system (1) according to one of the preceding claims, wherein at least one further second sensor (12, 12') is coupled via data link to the temperature sensor (3) in a daisy-chain arrangement on the connecting line (5).
  7. Warning system (1) according to claim 6, wherein the second sensor (12, 12') is a gas sensor.
  8. Warning system (1) according to one of the preceding claims, wherein the warning system (1) comprises a measurement chamber (8) in accordance with the optical scatter principle.
  9. Gas detector, embodied as a warning system (1) according to one of the preceding claims.
  10. Smoke or fire detector, embodied as a warning system (1) according to one of claims 1 to 8, wherein the smoke or fire detector has a detection unit (8) for detecting smoke particles.
EP12187861.5A 2012-10-09 2012-10-09 Warning system with a digital temperature sensor Active EP2720209B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12187861.5A EP2720209B2 (en) 2012-10-09 2012-10-09 Warning system with a digital temperature sensor
PL12187861T PL2720209T5 (en) 2012-10-09 2012-10-09 Warning system with a digital temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12187861.5A EP2720209B2 (en) 2012-10-09 2012-10-09 Warning system with a digital temperature sensor

Publications (3)

Publication Number Publication Date
EP2720209A1 EP2720209A1 (en) 2014-04-16
EP2720209B1 EP2720209B1 (en) 2017-01-18
EP2720209B2 true EP2720209B2 (en) 2020-11-04

Family

ID=47146169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12187861.5A Active EP2720209B2 (en) 2012-10-09 2012-10-09 Warning system with a digital temperature sensor

Country Status (2)

Country Link
EP (1) EP2720209B2 (en)
PL (1) PL2720209T5 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022116321B3 (en) 2022-06-30 2023-08-10 Diehl Aviation Gilching Gmbh smoke detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009115720A2 (en) † 2008-03-03 2009-09-24 F.A.R.E Compact smoke detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50205813D1 (en) * 2002-06-20 2006-04-20 Siemens Schweiz Ag Zuerich fire alarm
US6967582B2 (en) * 2002-09-19 2005-11-22 Honeywell International Inc. Detector with ambient photon sensor and other sensors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009115720A2 (en) † 2008-03-03 2009-09-24 F.A.R.E Compact smoke detector

Also Published As

Publication number Publication date
EP2720209A1 (en) 2014-04-16
EP2720209B1 (en) 2017-01-18
PL2720209T5 (en) 2021-01-11
PL2720209T3 (en) 2017-07-31

Similar Documents

Publication Publication Date Title
DE69710019T2 (en) Presence sensor with multiple functions
EP2879104B2 (en) Auxiliary device for a punctual danger alarm for the monitoring of the function of the danger alarm and use of a such device
EP1376505B1 (en) Fire detector
DE102006035184A1 (en) Modular sensor unit for a motor vehicle
EP1380481A2 (en) Sensor arrangement
EP1550093A1 (en) Smoke detector
WO2020223635A3 (en) Intelligent lighting control radar sensing system apparatuses and methods
EP2720209B2 (en) Warning system with a digital temperature sensor
EP3469566B1 (en) Hazard detector and method for transmitting a hazard signal and system comprising the hazard detector
DE102013207990B4 (en) Hazard detector with temperature sensor
DE202013005999U1 (en) Optical receiving unit for a working according to the scattered light principle optical smoke detector with improved protection against EMC radiation
EP3479658B1 (en) Lighting system with location related measured values
DE102017111017B4 (en) Light canopy for detecting and signaling different dangerous situations
DE102023003008A1 (en) A vehicle fire monitoring method and a vehicle fire monitoring system
EP2182497B1 (en) Gas detector
CN205621220U (en) Thing networking smoke transducer
CN219300311U (en) Embedded fire detector
EP1879761A1 (en) Sensor arrangement for recording misting tendency
CN109353509A (en) A kind of UAV system
EP0911774B1 (en) Space monitoring sensor
DE102022134086A1 (en) Electrical/electronic device for building installation technology
DE10246051A1 (en) Apparatus for determining the concentration of a material in a gas (e.g. carbon dioxide in air-conditioning) has two sensor systems operating in different measuring regions
DE102018106253B3 (en) Light canopy for detecting and signaling dangerous situations
TW202248895A (en) Sensing device for sensing signal of tower light and sensing system having the same
DE102022134087A1 (en) Procedure for operating a presence detector

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130319

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS SCHWEIZ AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: G08B 17/113 20060101ALI20160801BHEP

Ipc: G08B 17/107 20060101AFI20160801BHEP

INTG Intention to grant announced

Effective date: 20160819

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 863292

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012009356

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170418

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170518

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170418

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170518

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502012009356

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

26 Opposition filed

Opponent name: HEKATRON VERTRIEBS GMBH

Effective date: 20171018

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171009

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171009

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20121009

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170118

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

REG Reference to a national code

Ref country code: CH

Ref legal event code: AELC

27A Patent maintained in amended form

Effective date: 20201104

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 502012009356

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20230928

Year of fee payment: 12

Ref country code: NL

Payment date: 20231009

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231106

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20231010

Year of fee payment: 12

Ref country code: IT

Payment date: 20231025

Year of fee payment: 12

Ref country code: FR

Payment date: 20231017

Year of fee payment: 12

Ref country code: DE

Payment date: 20231214

Year of fee payment: 12

Ref country code: AT

Payment date: 20230911

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20240110

Year of fee payment: 12