EP1515290A1 - Hazard warning device with battery monitoring - Google Patents

Hazard warning device with battery monitoring Download PDF

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Publication number
EP1515290A1
EP1515290A1 EP04103414A EP04103414A EP1515290A1 EP 1515290 A1 EP1515290 A1 EP 1515290A1 EP 04103414 A EP04103414 A EP 04103414A EP 04103414 A EP04103414 A EP 04103414A EP 1515290 A1 EP1515290 A1 EP 1515290A1
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EP
European Patent Office
Prior art keywords
battery
signal
time
photosensor
fault
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Ceased
Application number
EP04103414A
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German (de)
French (fr)
Inventor
Ludwig Kreuzer
Karlheinz Schreyer
Erich Wonisch
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Siemens AG
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Siemens AG
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Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1515290A1 publication Critical patent/EP1515290A1/en
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Definitions

  • the invention relates to a battery-powered hazard detector with a device for charge monitoring of the battery and a fault reporting device which generates a fault signal generated as soon as the battery voltage is a predetermined Minimum threshold falls below, and with the interference signal one preferably activated acoustic signal.
  • a circuit for monitoring a voltage source, in particular a voltage source, as a battery in a battery powered fire alarm device is known. There it is provided that the Battery monitoring circuit upon detection of a preselected Undervoltage condition an intermittent acoustic Signal generated.
  • the aim of the invention is therefore to provide a hazard detector the type mentioned above in such a way that unnecessary nocturnal Disturbances in the living area can be avoided without that the safety of the plant suffers.
  • this object is achieved in that a the time of day detecting sensor is provided, the one during a rest time specified in the daily routine Interference signal suppressed until after the end of idle time and only then activates the signal generator.
  • the invention makes use of the knowledge that the battery voltage drops substantially continuously and usually even after falling below the given Fault threshold still for a sufficient amount of safety ensured by the detector. Thus, it is not necessary when falling below the Störschwelle the battery voltage coincidentally occurs during the nighttime, this too immediately into a loud acoustic signal and within earshot to awaken sleeping people unnecessarily or in excitement offset.
  • the specified rest time preferably defined as nighttime. Therefore, in a preferred embodiment of the invention the sensor is a photosensor, which falls below one predetermined threshold for the ambient light intensity activation of the signal generator delayed until the specified Threshold is exceeded again. For this purpose can also provided for alarm display anyway in the detector LED are used.
  • the detector has its own time-measuring device, he can talk about measuring the lighting conditions on the Synchronize day / night changes, allowing specific time windows for battery trouble reporting, but also for others Fault messages can be defined.
  • a sensor can also serve a standard time clock, the rest time immediately or in conjunction with measured values of a photosensor.
  • the signal delay according to the invention in addition to the battery fault signal also for other fault signals be applied, their forwarding without interference safety does not necessarily have to be done immediately.
  • the single FIGURE shows a block diagram for an invention constructed hazard detector.
  • This danger detector has a hazard sensor 1, which depends on the one to be reported Danger for example a fire sensor or a burglary sensor can be.
  • the state or state change of the sensor 1 is evaluated in a detector logic 2 and when exceeded an alarm criterion in the form of an alarm signal AS a Signal transmitter control 3 supplied.
  • an alarm criterion in the form of an alarm signal AS a Signal transmitter control 3 supplied.
  • an acoustic signal or buzzer 4 activated.
  • the detector is powered by a battery 8 with energy. This battery must be constantly monitored and underrun a critical state of charge can be exchanged. To this Purpose is a battery monitoring unit 7 is provided, the the battery voltage measures and falls below a predetermined Minimum Threshold a battery fault signal BS the signal transmitter control 3 gives. From there then becomes the Buzzer 4 is activated via a fault signal SS.
  • the photosensor 6 an LED can be used are at the same time as a display unit 5 for the alarm signal AS serves.
  • Timebase 9 is provided, which via the brightness signal HS can be synchronized and thus certain time windows for the transmission of interference signals. If the time base is a standard time clock, such time windows can also independent for the forwarding of a fault signal be determined by the brightness measurement. In this Case are these time windows, each defining a rest period, also not limited to the night, but can be set at any time of day.
  • the invention is not limited to the forwarding of Battery disturbance signals alone limited, rather In this way, other fault signals in the detector to the Expiration of a specified rest period be delayed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

During the course of the 24 h day, an optical sensor system with optional timer (6, 9) indicates the daylight- and the quiet hours. This is able to delay any alarms related exclusively to battery undervoltage or failure (SS). It only activates the battery undervoltage alarm (4) on expiry of the quiet hours.

Description

Die Erfindung betrifft einen batteriegespeisten Gefahrenmelder mit einer Einrichtung zur Ladungsüberwachung der Batterie und mit einer Störungsmeldeeinrichtung, welche ein Störungssignal erzeugt, sobald die Batteriespannung eine vorgegebene Mindestschwelle unterschreitet, und mit dem Störsignal einen vorzugsweise akustischen Signalgeber aktiviert.The invention relates to a battery-powered hazard detector with a device for charge monitoring of the battery and a fault reporting device which generates a fault signal generated as soon as the battery voltage is a predetermined Minimum threshold falls below, and with the interference signal one preferably activated acoustic signal.

Aus der DE 2 659 900 A1 ist eine Schaltung zur Überwachung einer Spannungsquelle, insbesondere einer Spannungsquelle, die als Batterie in einer batteriebetriebenen Feueralarmeinrichtung enthalten ist, bekannt. Dort ist vorgesehen, daß die Batterie-Überwachungsschaltung bei Ermittlung eines vorgewählten Unterspannungszustandes ein intermittierendes akustisches Signal erzeugt.From DE 2 659 900 A1 a circuit for monitoring a voltage source, in particular a voltage source, as a battery in a battery powered fire alarm device is known. There it is provided that the Battery monitoring circuit upon detection of a preselected Undervoltage condition an intermittent acoustic Signal generated.

Eine ständige Überwachung der Batterie eines solchen Gefahrenmelders ist zwar unbedingt notwendig, doch kann die akustische Störungsanzeige, wenn sie in einem Wohnbereich zur Nachtzeit erfolgt, zu erheblichen Unannehmlichkeiten und unnötigen Aufregungen führen.Constant monitoring of the battery of such a hazard detector Although absolutely necessary, but the acoustic Fault indicator when used in a residential area Night time, causing considerable inconvenience and unnecessary Cause excitement.

Ziel der Erfindung ist es deshalb, einen Gefahrenmelder der eingangs genannten Art so auszugestalten, daß unnötige nächtliche Störungen im Wohnbereich vermieden werden können, ohne daß die Sicherheit der Anlage leidet.The aim of the invention is therefore to provide a hazard detector the type mentioned above in such a way that unnecessary nocturnal Disturbances in the living area can be avoided without that the safety of the plant suffers.

Erfindungsgemäß wird dieses Ziel dadurch erreicht, daß ein die Tageszeit erfassender Sensor vorgesehen ist, der ein während einer im Tagesablauf vorgegebenen Ruhezeit auftretendes Störungssignal bis nach dem Ende der Ruhezeit unterdrückt und erst danach den Signalgeber aktiviert. According to the invention, this object is achieved in that a the time of day detecting sensor is provided, the one during a rest time specified in the daily routine Interference signal suppressed until after the end of idle time and only then activates the signal generator.

Die Erfindung macht sich dabei die Erkenntnis zunutze, daß die Batteriespannung im wesentlichen kontinuierlich abfällt und in der Regel auch nach Unterschreiten der vorgegebenen Störungsschwelle noch für eine ausreichende Zeit die Sicherheit des Melders gewährleistet. Somit ist es nicht notwendig, wenn das Unterschreiten der Störschwelle der Batteriespannung zufällig während der Nachtzeit auftritt, dieses auch sofort in ein lautes akustisches Signal umzusetzen und in Hörweite schlafende Personen unnötig zu wecken bzw. in Aufregung zu versetzen.The invention makes use of the knowledge that the battery voltage drops substantially continuously and usually even after falling below the given Fault threshold still for a sufficient amount of safety ensured by the detector. Thus, it is not necessary when falling below the Störschwelle the battery voltage coincidentally occurs during the nighttime, this too immediately into a loud acoustic signal and within earshot to awaken sleeping people unnecessarily or in excitement offset.

Wie sich aus den obigen Ausführungen bereits ergibt, ist die vorgegebene Ruhezeit vorzugsweise als Nachtzeit definiert. Deshalb ist in einer bevorzugten Ausführungsform der Erfindung der Sensor ein Photosensor, der bei Unterschreiten einer vorgegebenen Schwelle für die Umgebungslichtstärke die Aktivierung des Signalgebers verzögert, bis die vorgegebene Schwelle wieder überschritten wird. Für diesen Zweck kann auch eine zur Alarmanzeige ohnehin in dem Melder vorgesehene Leuchtdiode genutzt werden.As can already be seen from the above, is the specified rest time preferably defined as nighttime. Therefore, in a preferred embodiment of the invention the sensor is a photosensor, which falls below one predetermined threshold for the ambient light intensity activation of the signal generator delayed until the specified Threshold is exceeded again. For this purpose can also provided for alarm display anyway in the detector LED are used.

Wenn der Melder über eine eigene Zeitmeßeinrichtung verfügt, kann er sich über die Messung der Lichtverhältnisse auf den Tag/Nachtwechsel synchronisieren, so daß bestimmte Zeitfenster für die Batteriestörungsmeldung, aber auch für andere Störungsmeldungen, definiert werden können. Als Sensor kann auch eine Normalzeituhr dienen, die die Ruhezeit unmittelbar oder in Verknüpfung mit Meßwerten eines Photosensors festlegt. Natürlich kann die erfindungsgemäße Signalverzögerung neben dem Batteriestörungssignal auch für andere Störungssignale angewendet werden, deren Weiterleitung ohne Beeinträchtigung der Sicherheit nicht unbedingt sofort erfolgen muß.If the detector has its own time-measuring device, he can talk about measuring the lighting conditions on the Synchronize day / night changes, allowing specific time windows for battery trouble reporting, but also for others Fault messages can be defined. As a sensor can Also serve a standard time clock, the rest time immediately or in conjunction with measured values of a photosensor. Of course, the signal delay according to the invention in addition to the battery fault signal also for other fault signals be applied, their forwarding without interference safety does not necessarily have to be done immediately.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel anhand der Zeichnung näher erläutert. The invention is described below using an exemplary embodiment explained in more detail with reference to the drawing.

Die einzige Figur zeigt ein Blockschaltbild für einen erfindungsgemäß aufgebauten Gefahrenmelder. Dieser Gefahrenmelder besitzt einen Gefahrensensor 1, der je nach der zu meldenden Gefahr beispielsweise ein Brandsensor oder ein Einbruchsensor sein kann. Der Zustand bzw. die Zustandsänderung des Sensors 1 wird in einer Melderlogik 2 ausgewertet und bei Überschreitung eines Alarmkriteriums in Form eines Alarmsignals AS einer Signalgebersteuerung 3 zugeführt. Über diese Signalgebersteuerung 3 wird dann ein akustischer Signalgeber bzw. Summer 4 aktiviert.The single FIGURE shows a block diagram for an invention constructed hazard detector. This danger detector has a hazard sensor 1, which depends on the one to be reported Danger for example a fire sensor or a burglary sensor can be. The state or state change of the sensor 1 is evaluated in a detector logic 2 and when exceeded an alarm criterion in the form of an alarm signal AS a Signal transmitter control 3 supplied. About this signaling device control 3 is then an acoustic signal or buzzer 4 activated.

Der Melder wird von einer Batterie 8 mit Energie versorgt. Diese Batterie muß ständig überwacht und bei Unterschreitung eines kritischen Ladezustands ausgetauscht werden. Zu diesem Zweck ist eine Batterieüberwachungseinheit 7 vorgesehen, die die Batteriespannung mißt und bei Unterschreitung einer vorgegebenen Mindestschwelle ein Batteriestörungssignal BS an die Signalgebersteuerung 3 gibt. Von dort aus wird dann der Summer 4 über ein Störungssignal SS aktiviert.The detector is powered by a battery 8 with energy. This battery must be constantly monitored and underrun a critical state of charge can be exchanged. To this Purpose is a battery monitoring unit 7 is provided, the the battery voltage measures and falls below a predetermined Minimum Threshold a battery fault signal BS the signal transmitter control 3 gives. From there then becomes the Buzzer 4 is activated via a fault signal SS.

Um eine Störung von Personen im Wohnbereich durch den lauten Summerton während der Nachtzeit zu vermeiden, wird das Batteriestörungssignal BS in der Signalgebersteuerung 3 mit einem Helligkeitssignal HS verknüpft, welches von einem Photosensor 6 erzeugt wird. Als Photosensor 6 kann dabei eine LED verwendet werden, die zugleich als Anzeigeeinheit 5 für das Alarmsignal AS dient.To disturb a person in the living area by the loud To avoid buzzer sound during the night time, the battery annoying signal BS in the signal transmitter control 3 with a Brightness signal HS linked, which of a photosensor 6 is generated. As the photosensor 6, an LED can be used are at the same time as a display unit 5 for the alarm signal AS serves.

Solange das Helligkeitssignal HS unter einer bestimmten Schwelle liegt und somit eine Nachtzeit anzeigt, wird das Batteriestörungssignal BS in der Signalgebersteuerung 3 verzögert und nicht an den Summer 4 weitergegeben. Erst wenn dieses Helligkeitssignal HS über der vorgegebenen Schwelle liegt und damit Tageslicht anzeigt, wird das Störungssignal SS zur Aktivierung des Summers 4 weitergeleitet. As long as the brightness signal HS below a certain Threshold is and thus indicates a night time, that will Battery disturb signal BS delayed in the signal generator control 3 and not passed on to the Summer 4. Only when this brightness signal HS above the predetermined threshold lies and thus indicates daylight, the fault signal SS for activating the buzzer 4 forwarded.

Im vorliegenden Beispiel ist außerdem in dem Melder eine Zeitbasis 9 vorgesehen, die über das Helligkeitssignal HS synchronisiert werden kann und damit bestimmte Zeitfenster für die Weiterleitung von Störungssignalen bilden kann. Wenn die Zeitbasis eine Normalzeituhr ist, können solche Zeitfenster für die Weiterleitung eines Störungssignals auch unabhängig von der Helligkeitsmessung festgelegt werden. In diesem Fall sind diese Zeitfenster, die jeweils eine Ruhezeit definieren, auch nicht auf die Nacht beschränkt, sondern können auch zu beliebigen Tageszeiten festgelegt werden.In the present example is also in the detector a Timebase 9 is provided, which via the brightness signal HS can be synchronized and thus certain time windows for the transmission of interference signals. If the time base is a standard time clock, such time windows can also independent for the forwarding of a fault signal be determined by the brightness measurement. In this Case are these time windows, each defining a rest period, also not limited to the night, but can be set at any time of day.

Natürlich ist die Erfindung nicht auf die Weiterleitung von Batteriestörungssignalen allein beschränkt, vielmehr können auf diese Weise auch andere Störungssignale im Melder bis zum Ablauf einen jeweils festgelegten Ruhezeit verzögert werden.Of course, the invention is not limited to the forwarding of Battery disturbance signals alone limited, rather In this way, other fault signals in the detector to the Expiration of a specified rest period be delayed.

Claims (6)

Batteriegespeister Gefahrenmelder mit einer Einrichtung zur Ladungsüberwachung (7) der Batterie (8) und mit einer Störungsmeldeeinrichtung (3), welche ein Störungssignal (SS) erzeugt, sobald die Batteriespannung eine vorgegebene Mindestschwelle unterschreitet, und mit dem Störungssignal einen vorzugsweise akustischen Signalgeber (4) aktiviert,
dadurch gekennzeichnet, daß ein die Tageszeit erfassender Sensor (6,9) vorgesehen ist, der ein während einer im Tagesablauf vorgegebenen Ruhezeit auftretendes Störungssignal (SS) bis nach dem Ende der Ruhezeit verzögert und erst danach den Signalgeber (4) aktiviert.Battery-fed danger detector with a device for charge monitoring (7) of the battery (8) and with a fault signaling device (3) which generates a fault signal (SS) as soon as the battery voltage falls below a predetermined minimum threshold, and with the fault signal a preferably acoustic signal transmitter (4) activated
characterized in that a sensor (6,9) detecting the time of day is provided which delays a disturbance signal (SS) occurring during a rest time specified in the daily routine until after the end of the rest period and only then activates the signal generator (4). Gefahrenmelder nach Anspruch 1,
dadurch gekennzeichnet, daß der Sensor (6) ein Photosensor ist, der bei Unterschreiten einer vorgegebenen Schwelle für die Umgebungslichtstärke die Aktivierung des Signalgebers (4) verzögert, bis die vorgegebene Schwelle wieder überschritten wird.Hazard detector according to claim 1,
characterized in that the sensor (6) is a photosensor which delays the activation of the signal generator (4) falls below a predetermined threshold for the ambient light intensity until the predetermined threshold is exceeded again. Gefahrenmelder nach Anspruch 2,
dadurch gekennzeichnet, daß eine in dem Melder vorgesehene Zeitmeßeinrichtung (9) über den Photosensor synchronisiert wird und ein Zeitfenster für die Weiterleitung von Störungsmeldungen (SS) an den Signalgeber (4) festlegt.Hazard detector according to claim 2,
characterized in that a provided in the detector timing device (9) is synchronized via the photosensor and determines a time window for the forwarding of fault messages (SS) to the signal generator (4). Gefahrenmelder nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß als Sensor eine Normalzeituhr (9) dient, die die Ruhezeit unmittelbar oder in Verknüpfung mit Meßwerten eines Photosensors (6) festlegt. Hazard detector according to one of claims 1 to 3,
characterized in that a standard timer (9) serving as the sensor determines the rest time directly or in combination with measured values of a photosensor (6). Gefahrenmelder nach einem der Ansprüche bis 4,
dadurch gekennzeichnet, daß eine zur Alarmanzeige vorgesehene Leuchtdiode (5) zugleich als Photosensor (6) dient.Hazard detector according to one of the claims to 4,
characterized in that a light-emitting diode (5) provided for alarm display serves at the same time as a photosensor (6). Gefahrenmelder nach einem der Ansprüche 1bis 5,
dadurch gekennzeichnet, daß neben Batteriestörungssignalen (BS) auch andere Störungssignale in dem Melder mit Hilfe des die Tageszeit erfassenden Sensors (6,9) verzögert werden.Hazard detector according to one of claims 1 to 5,
characterized in that in addition to battery disturbance signals (BS) also other disturbance signals in the detector with the aid of the time of day detecting sensor (6,9) are delayed.
EP04103414A 2003-09-02 2004-07-16 Hazard warning device with battery monitoring Ceased EP1515290A1 (en)

Applications Claiming Priority (2)

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DE10340396 2003-09-02
DE2003140396 DE10340396B4 (en) 2003-09-02 2003-09-02 Hazard detector with battery monitoring

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457251A (en) * 2008-02-06 2009-08-12 Ritchie Colin Peter Macefield Smoke alarm with timer to detect smoke only during specific hours of the day
EP2423895A3 (en) * 2010-08-26 2015-03-04 Siemens Schweiz AG Light scattering smoke alarm with means of suppressing an acoustic warning if battery voltage is low

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Publication number Priority date Publication date Assignee Title
DE102015016316A1 (en) * 2015-12-17 2017-06-22 Drägerwerk AG & Co. KGaA Control unit for controlling an alarm output and method for controlling an alarm output and medical device

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FR2811456A1 (en) * 2000-07-10 2002-01-11 Giat Ind Sa Equipment for detecting start of fires in protected zone, comprises array of infra red detectors which are connected to microprocessor and visual warning units such as smoke generators or lights
US20030107494A1 (en) * 2001-12-11 2003-06-12 Fallon Raymond M. Power supply alarm control system

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US4287517A (en) * 1980-01-25 1981-09-01 Pittway Corporation Circuit for eliminating low battery voltage alarm signal at night
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Publication number Priority date Publication date Assignee Title
FR2811456A1 (en) * 2000-07-10 2002-01-11 Giat Ind Sa Equipment for detecting start of fires in protected zone, comprises array of infra red detectors which are connected to microprocessor and visual warning units such as smoke generators or lights
US20030107494A1 (en) * 2001-12-11 2003-06-12 Fallon Raymond M. Power supply alarm control system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457251A (en) * 2008-02-06 2009-08-12 Ritchie Colin Peter Macefield Smoke alarm with timer to detect smoke only during specific hours of the day
EP2423895A3 (en) * 2010-08-26 2015-03-04 Siemens Schweiz AG Light scattering smoke alarm with means of suppressing an acoustic warning if battery voltage is low
US9053620B2 (en) 2010-08-26 2015-06-09 Siemens Aktiengesellschaft Scattered-light fire detector with a device for suppressing an acoustic warning in the event of a low battery voltage
EP2423895B1 (en) 2010-08-26 2017-03-08 Siemens Schweiz AG Light scattering smoke alarm with means of suppressing an acoustic warning if battery voltage is low

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DE10340396B4 (en) 2007-04-05

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