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DE202007017709U1 - Acoustic alarm sensor - Google Patents

Acoustic alarm sensor Download PDF

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Publication number
DE202007017709U1
DE202007017709U1 DE200720017709 DE202007017709U DE202007017709U1 DE 202007017709 U1 DE202007017709 U1 DE 202007017709U1 DE 200720017709 DE200720017709 DE 200720017709 DE 202007017709 U DE202007017709 U DE 202007017709U DE 202007017709 U1 DE202007017709 U1 DE 202007017709U1
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Germany
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alarm
sensor
event
events
interconnected
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DE200720017709
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German (de)
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NOACK HENRIK
Noack Henrik Dipl-Ing Univ
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NOACK HENRIK
Noack Henrik Dipl-Ing Univ
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Priority to DE200720017709 priority Critical patent/DE202007017709U1/en
Publication of DE202007017709U1 publication Critical patent/DE202007017709U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/16Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1672Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Akustischer Alarmmeldesensor, zur Erkennung akustischer Alarmereignisse dadurch gekennzeichnet, dass mindestens ein elektrischer Schallwandler für die Aufnahme von Schallwellen mindestens einem Alarmereignis konfiguriert und mit einer Elektronik zur Erkennung besagter Alarmereignisse verschaltet ist.audible Alarm message sensor, for the detection of acoustic alarm events thereby characterized in that at least one electric sound transducer for recording configured by sound waves at least one alarm event and interconnected with an electronic system for detecting said alarm events is.

Figure 00000001
Figure 00000001

Description

Die Objektsicherung gewinnt in der heutigen Gesellschaft immer mehr an Bedeutung. Hierzu werden die verschiedensten Alarmsysteme eingesetzt. Übliche Alarmsysteme haben meist eine akustische Meldeeinrichtung, die für Menschen erkennbar auf ein Alarmereignis hinweist. Das Problem hierbei ist, dass bei Abwesenheit menschlicher Überwacher eine Erkennung des Alarmereignisses und somit eine daraufhin notwendige Reaktion ausbleibt.The Property security is gaining more and more in today's society in importance. For this the most different alarm systems are used. Usual alarm systems Most have an acoustic message device that is for people identifiable as an alarm event. The problem here is that in the absence of human monitors one Detection of the alarm event and thus a necessary Reaction fails.

Ein Alarmsystem bei dem der ausgelöste Alarm keine, oder nur verspätete Reaktion nach sich zieht, ist in vielen Fällen nutzlos. Es wird also ein Sensor benötigt, der beim Auslösen eines akustisch signalisierten Alarmereignisses ein sekundäres Alarmereignis auslöst, dass die Behandlung des ursprünglichen Alarms ermöglicht oder beschleunigt. Die im Schutzanspruch 1 angegebene Erfindung löst dieses Problem.One Alarm system in which the alarm triggered none, or only late Reaction is useless in many cases. So it will be a sensor is needed the triggering an acoustically signaled alarm event, a secondary alarm event triggers, that the treatment of the original Alarms enabled or accelerated. The protection specified in claim 1 invention solve this Problem.

Mit der Erfindung wird erreicht, dass ein eingetretenes Alarmereignis (z.B. das Auslösen eines Autoalarms) erkannt, und gemäß Schutzanspruch 2 an ein anderes System (z.B. die Überwachungszentrale eines Parkhauses) weitergeleitet werden kann. Dies ermöglicht die sofortige Anwendung von Prozeduren zur Begegnung besagter Alarmereignisse.With the invention is achieved that a occurred alarm event (e.g., triggering a car alarm) detected, and according to protection claim 2 to another System (e.g., the central office a parking garage) can be forwarded. This allows the Immediate application of procedures for meeting said alarm events.

Gemäß Schutzanspruch 3 können mehrere dieser Sensoren zu einem Sensornetzwerk verschaltet werden. Dies kann zum Zwecke der Vergrößerung der Reichweite, Verringerung der Fehleranfälligkeit oder zur Lokalisation des Alarmereignisses (z.B. mittels Triangulation) erfolgen. Ein lokalisiertes Ereignis kann als Grundlage weiterer Prozeduren zur Begegnung des Ereignisses dienen (ausrichten von Kameras, verschließen von Türen oder Schranken, etc.). Zudem ist die Verwendung von Verbundsensoren möglich, also Sensoren, bei denen mehrere Mikrofone mit einer Auswertelektronik verschaltet werden.According to protection claim 3 can several of these sensors are interconnected to a sensor network. This may be for the purpose of enlarging the Range, reduced susceptibility or localization the alarm event (e.g., by triangulation). One localized event can be used as the basis for further procedures Serve encounter of the event (align cameras, close off Doors or Barriers, etc.). In addition, the use of composite sensors is possible, ie Sensors in which several microphones with an electronic evaluation be interconnected.

Zur besseren Verarbeitung durch Sensorgruppen erkannter Ereignisse können gemäß Schutzanspruch 4 weitere zentrale oder verteilte Datenverarbeitungssysteme, auch in redundanter Form, verwendet werden.to better processing by sensor groups detected events can according to protection claim 4 more central or distributed data processing systems, too in redundant form.

Eine Realisierungsmöglichkeit ist in 1 dargestellt. Zur Lokalisation des Alarmereignisses E werden zwei Verbundsensoren (S1 und S2) verwendet, welche jeweils über 2 Mikrofone (M1 und M2) verfügen. Der Schall des Alarmereignisses trifft zu unterschiedlichen Zeitpunkten an den beiden Mikrofonen des Verbundsensors auf. Über den Laufzeitunterschied Δt lässt sich der Winkel α des Sensors zu dem Alarmereignis bestimmen. Wenn dieser Winkel an beiden Sensoren ermittelt wurde, ist eine genaue Lokalisation des Ereignisses möglich.One realization option is in 1 shown. For the localization of the alarm event E two composite sensors (S1 and S2) are used, each of which has two microphones (M1 and M2). The sound of the alarm event arrives at the two microphones of the composite sensor at different times. The time difference .DELTA.t can be used to determine the angle .alpha. Of the sensor to the alarm event. If this angle was determined on both sensors, a precise localization of the event is possible.

Zur Detektion des Ereignisses und des Laufzeitunterschiedes innerhalb eines Verbundsensors wird das Signal der beiden Mikrofone M1 und M2 digitalisiert und einem Mikrocontroller, FPGA, Industrie-PC, o.ä. verarbeitet. Hierzu wird das digitalisierte Signal gepuffert und über eine Fast-Furier-Transformation umgewandelt. Die Äderung des Spektrums wird verfolgt, und mit den Frequenzprofilen der gesuchten Ereignisse verglichen. Wenn ein Ereignis erkannt wurde, werden die gepufferten Signale beider Mikrofone nach dem Frequenzprofil digital gefiltert und Kreuzkorreliert. Das Maximum der Korrelation ergibt den benötigten Laufzeitunterschied Δt für den Verbundsensor.to Detection of the event and the runtime difference within a composite sensor is the signal of the two microphones M1 and M2 digitized and a microcontroller, FPGA, industrial PC, etc. processed. For this purpose, the digitized signal is buffered and via a Converted to fast-furier transformation. The veining of the spectrum is tracked and compared with the frequency profiles of the searched events. When an event is detected, the buffered signals become both microphones digitally filtered according to the frequency profile and cross-correlated. The maximum of the correlation gives the required transit time difference Δt for the composite sensor.

Claims (4)

Akustischer Alarmmeldesensor, zur Erkennung akustischer Alarmereignisse dadurch gekennzeichnet, dass mindestens ein elektrischer Schallwandler für die Aufnahme von Schallwellen mindestens einem Alarmereignis konfiguriert und mit einer Elektronik zur Erkennung besagter Alarmereignisse verschaltet ist.Acoustic alarm sensor, for detecting acoustic alarm events, characterized in that at least one electrical transducer for recording sound waves configured at least one alarm event and is connected to an electronic system for detecting said alarm events. Alarmmeldesensor nach Anspruch 1 dadurch gekennzeichnet, dass er mit einem sekundären Melde- oder Alarmsystem verschaltet ist und erkannte Alarme weiterleiten kann.Alarm signaling sensor according to claim 1, characterized that he is having a secondary Alarm or alarm system is interconnected and forward detected alarms can. Alarmmeldesensor nach einem der vorherigen Ansprüche dadurch gekennzeichnet, dass diese in Gruppen verschaltet werden können, um genauere Detektion oder Lokalisation von Alarmereignissen zu ermöglichen, wobei eine exakte zeitliche Synchronisierung der Sensorgruppen untereinander nicht unbedingt notwendig sein muss. Die Sensorgruppe kann auch über eine kombinierte Auswertelektronik verfügen und als Verbundsensor, auch in einem einzigen Gehäuse, realisiert werden.Alarm signaling sensor according to one of the preceding claims characterized in that they can be interconnected in groups to enable more accurate detection or localization of alarm events where an exact time synchronization of the sensor groups with each other not necessarily necessary. The sensor group can also have a combined evaluation electronics and as composite sensor, even in a single case, will be realized. Alarmmeldesensor nach einem der vorherigen Ansprüche dadurch gekennzeichnet, dass die Sensordaten zur genaueren Auswertung und Lokalisation des Alarmereignisses durch elektronische Datenverarbeitungssysteme mittels geeigneter Algorithmen weiterverarbeitet werden können.Alarm signaling sensor according to one of the preceding claims characterized in that the sensor data for more accurate evaluation and Localization of the alarm event by electronic data processing systems can be further processed by means of suitable algorithms.
DE200720017709 2007-12-19 2007-12-19 Acoustic alarm sensor Expired - Lifetime DE202007017709U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009666A1 (en) * 2009-07-23 2011-01-27 Siemens Aktiengesellschaft Method for monitoring a vicinity using several acoustic sensors
WO2012056156A1 (en) * 2010-10-29 2012-05-03 Sorhea Fence with localized intrusion detection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009666A1 (en) * 2009-07-23 2011-01-27 Siemens Aktiengesellschaft Method for monitoring a vicinity using several acoustic sensors
CN102473338A (en) * 2009-07-23 2012-05-23 西门子公司 Method for monitoring a vicinity using several acoustic sensors
WO2012056156A1 (en) * 2010-10-29 2012-05-03 Sorhea Fence with localized intrusion detection
FR2966959A1 (en) * 2010-10-29 2012-05-04 Sorhea CLOSURE WITH LOCALIZED DETECTION OF INTRUSION
US9922511B2 (en) 2010-10-29 2018-03-20 Societe Rhodanienne D'electronique Appliquee-Sorhea Fence with localized intrusion detection

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Effective date: 20080403

R150 Term of protection extended to 6 years

Effective date: 20110119

R157 Lapse of ip right after 6 years
R157 Lapse of ip right after 6 years

Effective date: 20140701