EP0901111B1 - Method and device for alerting people - Google Patents

Method and device for alerting people Download PDF

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Publication number
EP0901111B1
EP0901111B1 EP98115790A EP98115790A EP0901111B1 EP 0901111 B1 EP0901111 B1 EP 0901111B1 EP 98115790 A EP98115790 A EP 98115790A EP 98115790 A EP98115790 A EP 98115790A EP 0901111 B1 EP0901111 B1 EP 0901111B1
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EP
European Patent Office
Prior art keywords
warning
signals
emission
during
measured
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Expired - Lifetime
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EP98115790A
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German (de)
French (fr)
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EP0901111A3 (en
EP0901111A2 (en
Inventor
Hermann Stein
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SCHWEIZER ELECTRONIC M2S AG
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Schweizer Electronic M2S AG
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/06—Control, warning or like safety means along the route or between vehicles or trains for warning men working on the route

Definitions

  • the invention relates to a method and a device for warning people. especially in the track area of trains - with those in the preambles of the claims 1 or 6 specified characteristics.
  • Warning devices that emit warning signals whose intensity is greater than that of the physical is equivalent environmental emissions in the absence of warning signals, the in the Immission pauses measured as a control value for the intensity of the warning signals (GB 2 084 783 A). Monitoring the proper functioning of the warning is not specified.
  • An automatic warning device for warning people of approaching is known Trains using acoustic signals, the intensity of the emitted signals is selected according to the measured ambient noise level such that the Ambient noise level - measured by the sounder in function as a microphone - by one predetermined size are exceeded (DE 44 22 308 A1). Monitoring the emitted warning signals is not possible with this arrangement, since the warning signal is not can be measured.
  • Warning devices that emit warning signals, whereby a fault warning is given when in the doubled safety device, the levels of compared, serving the warning Signals differ from each other (DE 36 24 099 C2). Monitoring the emitted Warning signals are not specified.
  • the object of the invention is a generic method and a generic Specify facility where all means for converting and measuring the emitted Warning signals are monitored, the warning signal not being unnecessarily intense is the environmental disturbance level or is obscured by it in its perceptibility.
  • the warning device is able to automatically tolerances in the Compensation and achieved conversion of the Wansignal or the measurement of the immission thus the reliability and security to be sought for such devices.
  • a signal generator 5a emits predetermined signals via a line 35 during the warning by a controller 3 via a controller 5 to the converter 7, which converts and outputs the signals 37 into the warning signals 25, 55 to be emitted.
  • a sensor 9 measures the immission 27, 57, which is physically equivalent to the warning signal 25, 55.
  • the immission measured by the sensor 9 reaches the controller 5 and the fault value memory 11 via a line 29, the input of which is released by the control 3 through a connection 31 during the pauses in the warning - preferably only immediately before a warning - so that the fault value memory 11 only can save the warning-free fault value.
  • the controller 5 is released by the controller through the connection 31 and adjusts the level of the signals 37 at its output until the measured immission 27, 57, 9, 29 of the warning signal 25, 55 is a predetermined value higher than the value of the environmental disturbance previously stored in the fault value memory 11, which value is fed to it via a line 33.
  • the predetermined value can be absolute or, for example, a quotient of the two compared values, a correction value with regard to the warning signal 25, 55 for the possibly short distance between transducer 7 and sensor 9 being included.
  • the controller 5 can contain the signal generator 5a or a controllable signal generator (5.5a), the connection 23 between the means 5.5a being eliminated.
  • the control 3 can other, known and usual, not shown means of introduction contained in the warning and / or controlled or remotely controlled via its input 21.
  • the fault value memory 11 can be, for example, a capacitor with a discharge resistor or be a digital memory.
  • the means 3-11 can work analog or digital or part of a processor with its periphery.
  • the sensor 9 can be a rating filter have, for example to normalize the immission value 27.57.
  • the level of the warning signal must be 25.55 above that of the Environmental disturbance lie to ensure the perception of the warning signal. Nevertheless the warning signal should not be unnecessarily intense. Problems arise here in particular impermissible deviations in the transducer and sensor properties during the 7.9 Operating, for example due to pollution. In the procedure presented here however, the continuously updated emissions 27.57 of both the environmental disturbance and the Warning signal measured by the same sensor 9, so that changes in properties of the sensor 9 can be compensated. At the same time, changes in properties of the converter 7 compensated because it is included in the control loop 5,7,9.
  • the level of the signals 37 at the output of the controller increases due to the compensation until it finally reaches a predetermined limit value.
  • the controller 3 compares the level of the signals 37 with the predetermined limit value and, when the limit value is exceeded, causes the signal generator 5a via the line 35 to emit an interference signal.
  • the warning 7,25,55 is released by the controller 3 if the interference signal is to be emitted at the output 25.55.
  • the Signals 37 during the warning time via the controls 3 in the function groups 1.51 are transmitted to one another via a line 41 and compared with one another.
  • Deviations in the parameters of the signals 37 such as level, duration or Frequencies beyond a predetermined level, there is a failure and the controls 3 cause a fault warning via line 35 in signal generator 5a.
  • the transducers 7 can be of different physical types and for example acoustic, optical or mechanical warning signals 25.55 or a combination thereof deliver, each a pair of a transducer 7 and a sensor 9 physically are equivalent to each other.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
  • Road Signs Or Road Markings (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Traffic Control Systems (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The method involves measuring noise levels during a pause in the warning signals and storing this as a reference noise value. The level of the warning signals (25,55) are then measured during the period when the warning apparatus is active. During this period, the warning signals are adjusted until their measured level exceeds the previously stored noise value by a preset amount. There is also an Independent claim to an apparatus for carrying out the method.

Description

Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Warnung von Personen - insbesondere im Gleisbereich von Zügen - mit den in den Oberbegriffen der Patentansprüche 1 bzw. 6 angegebenen Merkmalen.The invention relates to a method and a device for warning people. especially in the track area of trains - with those in the preambles of the claims 1 or 6 specified characteristics.

Bekannt ist ein Verfahren und eine Einrichtung zur Warnung von Personen durch Warngeräte, die Warnsignale emittieren, deren Intensität größer als das der physikalisch äquivalenten Umweltimmission bei fehlender Abgabe der Warnsignale ist, wobei die in den Warnpausen gemessene Immission als Stellwert für die Intensität der Warnsignale dient (GB 2 084 783 A). Eine Überwachung der ordnungsgemäßen Funktion der Warnung ist nicht angegeben.A method and a device for warning people is known Warning devices that emit warning signals whose intensity is greater than that of the physical is equivalent environmental emissions in the absence of warning signals, the in the Immission pauses measured as a control value for the intensity of the warning signals (GB 2 084 783 A). Monitoring the proper functioning of the warning is not specified.

Bekannt ist ein automatisches Warngerät zur Warnung von Personen vor herannahenden Zügen mit Hilfe akustischer Signale, wobei die Intensität der abgegebenen Signale entsprechend gemessener Umgebungsstörpegel derart gewählt ist, daß die Umgebungsstörpegel - gemessen durch den Schallgeber in Funktion als Mikrofon - um eine vorbestimmte Größe übertroffen sind (DE 44 22 308 A1). Eine Überwachung der emittierten Warnsignale ist mit dieser Anordnung nicht möglich, da das Warnsignal nicht gemessen werden kann.An automatic warning device for warning people of approaching is known Trains using acoustic signals, the intensity of the emitted signals is selected according to the measured ambient noise level such that the Ambient noise level - measured by the sounder in function as a microphone - by one predetermined size are exceeded (DE 44 22 308 A1). Monitoring the emitted warning signals is not possible with this arrangement, since the warning signal is not can be measured.

Bekannt ist ein Verfahren und eine Einrichtung zur Warnung von Personen durch Warngeräte, die Warnsignale emittieren, wobei eine Störwarnung abgegeben wird, wenn in der verdoppelten Sicherheitseinrichtung die Pegel verglichener, der Warngebung dienender Signale voneinander abweichen (DE 36 24 099 C2). Eine Überwachung der emittierten Warnsignale ist nicht angegeben.A method and a device for warning people is known Warning devices that emit warning signals, whereby a fault warning is given when in the doubled safety device, the levels of compared, serving the warning Signals differ from each other (DE 36 24 099 C2). Monitoring the emitted Warning signals are not specified.

Aufgabe der Erfindung ist es, ein gattungsgemäßes Verfahren und eine gattungsgemäße Einrichtung anzugeben, bei dem alle Mittel zur Wandlung und Messung der emittierten Warnsignale überwacht werden, wobei das Warnsignal nicht unnötig intensiv gegenüber dem Umweltstörpegel ist oder von diesem in der Wahrnehmbarkeit verdeckt wird.The object of the invention is a generic method and a generic Specify facility where all means for converting and measuring the emitted Warning signals are monitored, the warning signal not being unnecessarily intense is the environmental disturbance level or is obscured by it in its perceptibility.

Diese Aufgabe wird erfindungsgemäß bei dem gattungsgemäßen Verfahren bzw. der gattungsgemäßen Einrichtung durch die kennzeichnenden Merkmale des Anspruchs 1 bzw. 6 gelöst. This object is achieved according to the generic method or the Generic device by the characterizing features of claim 1 or 6 solved.

Das Warngerät gemäß der Erfindung ist in der Lage, selbsttätig Toleranzen in der Wandlung des Wansignals oder der Messung der Immission auszugleichen und erreicht damit die für solche Geräte anzustrebende Zuverlässigkeit und Sicherheit.The warning device according to the invention is able to automatically tolerances in the Compensation and achieved conversion of the Wansignal or the measurement of the immission thus the reliability and security to be sought for such devices.

Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.Further advantageous refinements are described in the subclaims.

Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. Es zeigt

  • Fig. 1 ein Warngerät mit zwei identischen Funktionsgruppen.
    • Exemplary embodiments of the invention are explained in more detail below with reference to the drawing. It shows
  • Fig. 1 is a warning device with two identical function groups.

    • In Fig. 1 ist eine typische Schaltung einer verdoppelten Funktionsgruppe 1,51 mit je den Mitteln 3-11 eines Warngeräts dargestellt. Die Funktionsgruppe 1, beziehungsweise 51 des Warngeräts ist je für sich allein betriebsfähig. Die Funktionsgruppe 51 ist vereinfacht dargestellt. Ein Signalgenerator 5a gibt während der Warnung durch eine Steuerung 3 über eine Leitung 35 vorgegebene Signale über einen Regler 5 an den Wandler 7 ab, der die Signale 37 in die zu emittierenden Warnsignale 25,55 wandelt und abgibt. Ein Sensor 9 mißt die Immission 27,57, die physikalisch dem Warnsignal 25,55 äquivalent ist. Die vom Sensor 9 gemessene Immission gelangt über eine Leitung 29 an den Regler 5 und an den Störwertspeicher 11, dessen Eingang in den Warnpausen - vorzugsweise nur unmittelbar vor einer Warnung - von der Steurung 3 durch eine Verbindung 31 freigegeben wird, sodaß der Störwertspeicher 11 nur den warnsignalfreien Störwert speichern kann. Während der Warnzeit wird der Regler 5 durch die Verbindung 31 von der Steuerung freigegeben und stellt den Pegel der Signale 37 an seinem Ausgang so ein, bis die dabei gemessene Immission 27,57,9,29 des Warnsignals 25,55 einen vorbestimmten Wert höher ist als der zuvor im Störwertspeicher 11 gespeicherte Wert der Umweltstörung, der ihm über eine Leitung 33 zugeführt wird. Der vorbestimmte Wert kann absolut oder zum Beispiel ein Quotient der beiden verglichenen Werte sein, wobei ein Korrekturwert bezüglich des Warnsignals 25,55 für die möglicherweise geringe Distanz zwischen Wandler 7 und Sensor 9 einbezogen sein kann. 1 shows a typical circuit of a doubled function group 1.51, each with the means 3-11 of a warning device. Function group 1 or 51 of the warning device can each be operated on its own. The function group 51 is shown in simplified form. A signal generator 5a emits predetermined signals via a line 35 during the warning by a controller 3 via a controller 5 to the converter 7, which converts and outputs the signals 37 into the warning signals 25, 55 to be emitted. A sensor 9 measures the immission 27, 57, which is physically equivalent to the warning signal 25, 55. The immission measured by the sensor 9 reaches the controller 5 and the fault value memory 11 via a line 29, the input of which is released by the control 3 through a connection 31 during the pauses in the warning - preferably only immediately before a warning - so that the fault value memory 11 only can save the warning-free fault value. During the warning time, the controller 5 is released by the controller through the connection 31 and adjusts the level of the signals 37 at its output until the measured immission 27, 57, 9, 29 of the warning signal 25, 55 is a predetermined value higher than the value of the environmental disturbance previously stored in the fault value memory 11, which value is fed to it via a line 33. The predetermined value can be absolute or, for example, a quotient of the two compared values, a correction value with regard to the warning signal 25, 55 for the possibly short distance between transducer 7 and sensor 9 being included.

    Der Regler 5 kann den Signalgenerator 5a enthalten oder ein regelbarer Signalgenerator (5,5a) sein, wobei die Verbindung 23 zwischen den Mitteln 5,5a entfällt. Die Steuerung 3 kann weitere, an sich bekannte und übliche, nicht näher dargestellte Mittel zur Einleitung der Warnung enthalten und/oder über ihren Eingang 21 gesteuert oder fernbedient werden. Der Störwertspeicher 11 kann zum Beispiel ein Kondensator mit Entladewiderstand oder ein digitaler Speicher sein. Die Mittel 3-11 können analog oder digital arbeiten oder Teil eines Prozessors mit seiner Peripherie sein. Der Sensor 9 kann ein bewertendes Filter aufweisen, um zum Beispiel den Immissionswert 27,57 zu normieren.The controller 5 can contain the signal generator 5a or a controllable signal generator (5.5a), the connection 23 between the means 5.5a being eliminated. The control 3 can other, known and usual, not shown means of introduction contained in the warning and / or controlled or remotely controlled via its input 21. The fault value memory 11 can be, for example, a capacitor with a discharge resistor or be a digital memory. The means 3-11 can work analog or digital or part of a processor with its periphery. The sensor 9 can be a rating filter have, for example to normalize the immission value 27.57.

    Bei einer sicheren Warnung muß der Pegel des Warnsignals 25,55 über dem der Umweltstörung liegen, um die Wahrnehmung des Warnsignals zu gewährleisten. Trotzdem sollte das Warnsignal nicht unnötig intensiv sein. Probleme machen hier insbesondere unzulässige Abweichungen der Wandler- und Sensoreigenschaften 7,9 während des Betriebs, zum Beispiel durch Verschmutzung. Bei dem hier dargestellten Verfahren werden jedoch die ständig aktualisierten Immissionen 27,57 sowohl der Umweltstörung als auch des Warnsignals über den gleichen Sensor 9 gemessen, sodaß Veränderungen der Eigenschaften des Sensors 9 kompensiert werden. Gleichzeitig werden Veränderungen der Eigenschaften des Wandlers 7 kompensiert, da er in den Regelkreis 5,7,9 einbezogen ist.In the event of a safe warning, the level of the warning signal must be 25.55 above that of the Environmental disturbance lie to ensure the perception of the warning signal. Nevertheless the warning signal should not be unnecessarily intense. Problems arise here in particular impermissible deviations in the transducer and sensor properties during the 7.9 Operating, for example due to pollution. In the procedure presented here however, the continuously updated emissions 27.57 of both the environmental disturbance and the Warning signal measured by the same sensor 9, so that changes in properties of the sensor 9 can be compensated. At the same time, changes in properties of the converter 7 compensated because it is included in the control loop 5,7,9.

    Wenn sich der Wirkungsgrad der Wandlung 7 der Warnsignale 25,55 verschlechtert, nimmt der Pegel der Signale 37 am Ausgang des Reglers durch die Kompensation zu, bis er schließlich einen vorbestimmten Grenzwert erreicht. Die Steuerung 3 vergleicht den Pegel der Signale 37 mit dem vorbestimmten Grenzwert und veranlaßt bei Überschreiten des Grenzwertes den Signalgenerator 5a über die Leitung 35 zur Abgabe eines Störsignals. Gleichzeitig wird die Warnung 7,25,55 durch die Steuerung 3 freigegeben, wenn das Störsignal am Ausgang 25,55 emittiert werden soll.If the efficiency of the conversion 7 of the warning signals 25, 55 deteriorates, the level of the signals 37 at the output of the controller increases due to the compensation until it finally reaches a predetermined limit value. The controller 3 compares the level of the signals 37 with the predetermined limit value and, when the limit value is exceeded, causes the signal generator 5a via the line 35 to emit an interference signal. At the same time, the warning 7,25,55 is released by the controller 3 if the interference signal is to be emitted at the output 25.55.

    Um Ausfälle in der gesamten Funktionsgruppe 1 mit ihren Mitteln 3-11 erkennen zu können, ist mindestens eine zweite, gleichartige Funktionsgruppe 51 vorgesehen, wobei die Signale 37 während der Warnzeit über die Steuerungen 3 in den Funktionsgruppen 1,51 gegenseitig über eine Leitung 41 übermittelt und miteinander verglichen werden. Bei Abweichungen der Parameter der Signale 37 wie zum Beispiel Pegel, Dauer oder Frequenzen über einen vorbestimmtes Maß hinaus liegt ein Ausfall vor und die Steuerungen 3 veranlassen über die Leitung 35 im Signalgenerator 5a eine Störwarnung.To detect failures in the entire functional group 1 with their means 3-11 can, at least a second, similar functional group 51 is provided, the Signals 37 during the warning time via the controls 3 in the function groups 1.51 are transmitted to one another via a line 41 and compared with one another. at Deviations in the parameters of the signals 37 such as level, duration or Frequencies beyond a predetermined level, there is a failure and the controls 3 cause a fault warning via line 35 in signal generator 5a.

    Da sich die Emissionen 25,55 mehrerer Wandler 7 überdecken können, ist zur Einzelkontrolle der Wandler 7 vorgesehen, daß diese durch die Steuerungen 3 über eine Leitung 39 abwechselnd selektiv freigegeben werden. Die Signale 37 werden dabei in den Steuerungen 3 verzögert gespeichert, damit das bereits ausgeregelte Signal 37 erfaßt wird. Bei jeder neuen Freigabe eines Wandlers 7 werden durch die Steuerungen 3 die Signale 37 der verschiedenen Wandler miteinander verglichen. Bei unzulässigen Abweichungen wird eine Störwarnung veranlaßt.Since the emissions 25.55 of several converters 7 can overlap, Individual control of the transducer 7 is provided that this through the controls 3 via a Line 39 are alternately selectively released. The signals 37 are in the Controls 3 are stored with a delay so that the signal 37 which has already been corrected is detected. With each new release of a converter 7, the signals 37 of the different converters compared. In the event of impermissible deviations causes a malfunction warning.

    Die Wandler 7 können unterschiedlicher physikalischer Art sein und zum Beispiel akustische, optische oder mechanische Warnsignale 25,55 oder eine Kombinationen davon abgeben, wobei jeweils ein Paar aus je einem Wandler 7 und einem Sensor 9 physikalisch äquivalent zueinander sind.The transducers 7 can be of different physical types and for example acoustic, optical or mechanical warning signals 25.55 or a combination thereof deliver, each a pair of a transducer 7 and a sensor 9 physically are equivalent to each other.

    Claims (10)

    1. Method of alerting people - in particular in the track area of trains - through warning devices which emit warning signals (25, 22), the intensity of which is greater than the physically equivalent environmental emission in the case of absent emission of the warning signal - whereby the emission (27, 57) physically equivalent to the warning signals (25, 55) is measured in the warning breaks by the warning device, and is stored as the noise level (11),
      characterised
      in that the emission (27, 57) of the warning signals (25, 55) during the warning period is measured by the warning device, and
      in that during the warning period the warning signals (37, 25, 55) are adjusted by the warning device in such a way that the emission (27, 57, 9, 29) thereby measured reaches a predetermined value above the noise level (27, 57, 11, 33) previously stored in the warning breaks.
    2. Method according to claim 1, characterised in that a disturbance warning (25, 55) is emitted by the warning device when the level of the set warning signal (37, 25, 55) exceeds a predetermined limit value.
    3. Method according to one of the preceding claims, characterised in that a disturbance warning (25, 55) is given off by at least two functional groups (1, 51) of the same kind in the warning device when during the warning period the mutually compared signals (37) serving as the warning differ from one another by over a predetermined quantity.
    4. Method according to claim 3, characterised in that the signals (37) serving as the warning are released by the functional groups (1, 51) alternatively by one functional group each and are stored with delay, and in that the signals (37) given off by the functional groups (1, 51) are compared with the previously stored signals.
    5. Method according to one of the previous claims, characterised in that physically differing warning signals (25, 55) are emitted by the warning device and their emission (27, 57) is measured.
    6. Device for alerting people - in particular in the track region of trains - through warning devices which emit warning signals (25, 55), the intensity of which is greater than the physically equivalent environmental emissions in the case of absent emission of the warning signals,
      whereby a transducer (7) in the warning device converts the signals (23, 37) serving as the warning from a signal generator (5a) into the emitted warning signals (25, 55), and
      whereby a sensor (9), measures the emission physically equivalent to the warning signal (25, 55), which emission is stored during the warning breaks in a noise level memory (11) as the noise level,
      characterised
      in that the warning device has a control unit (3) and a regulating device (5),
      in that the sensor (9) measures the emission (27, 57) of the warning signals (25, 55) during the warning time (31) prescribed by the control unit (3), and
      in that, during the warning time (31) prescribed by the control unit (3), the regulating device (5) directs the signals from the signal generator (5a) to the transducer (7) and adjusts them in such a way that the emission value thereby supplied to it from the sensor (9, 29) reaches a predetermined value over the value supplied to it, measured beforehand in the warning breaks, from the noise level memory (11, 33).
    7. Device according to claim 6, characterised in that the control unit (3) gives off a control signal (35) to the signal generator (5a), which generates a disturbance warning when the level of the signals (37) supplied to the control unit (3) exceed a predetermined limit value.
    8. Device according to one of the claims 6 to 7, characterised
      in that the warning device has at least two functional groups (1, 51) of the same kind each with means (3 - 11) of the same kind,
      in that the control units (3) mutually compares the signals (37) during the warning period via a connection (41), and
      the control units (3) emit control signals (35) to the signal generator (5), which generates a disturbance warning when the compared signals (37) differ from one another by a predetermined quantity.
    9. Device according to claim 8, characterised
      in that the control units (3) during a warning release the signals (37) alternatively at one functional group (1, 51) each to the transducer (7) and store them with delay, and
      in that the control units (3) compare the released signals (37) with the signals stored beforehand in the control units (3).
    10. Device according to one of the claims 6 to 9, characterised
      in that the warning device has functional groups (1, 51) with pair-wise physically equivalent transducers (7) and sensors (9), and
      the pairs (7, 9) are of different physical type.
    EP98115790A 1997-09-04 1998-08-21 Method and device for alerting people Expired - Lifetime EP0901111B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19738568 1997-09-04
    DE19738568A DE19738568C1 (en) 1997-09-04 1997-09-04 Method and device for warning people

    Publications (3)

    Publication Number Publication Date
    EP0901111A2 EP0901111A2 (en) 1999-03-10
    EP0901111A3 EP0901111A3 (en) 2000-01-12
    EP0901111B1 true EP0901111B1 (en) 2003-03-26

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    ID=7841103

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98115790A Expired - Lifetime EP0901111B1 (en) 1997-09-04 1998-08-21 Method and device for alerting people

    Country Status (6)

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    EP (1) EP0901111B1 (en)
    AT (1) ATE235728T1 (en)
    DE (2) DE19738568C1 (en)
    DK (1) DK0901111T3 (en)
    ES (1) ES2195243T3 (en)
    PT (1) PT901111E (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2457307A (en) 2008-02-11 2009-08-12 Apollo Fire Detectors Ltd Fire alarm signalling with voice modulated HF signal multiplexed on to plateaus of existing lower frequency pulses carried on power cabling

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4243973A (en) * 1979-03-27 1981-01-06 Gordon B. Arnold Home integrated signal system
    GB2084783B (en) * 1980-10-02 1985-06-19 Production Eng Res Audio system
    GB2160004B (en) * 1984-03-15 1988-03-30 Patrick Joseph Lally Improvements relating to audible warning devices
    DE3624099A1 (en) * 1986-07-17 1988-01-21 Stein Gmbh Device for audibly warning persons via a radio-frequency information channel
    US4904992A (en) * 1989-03-28 1990-02-27 Motorola, Inc. Radio with message reception and ambient noise level controlled indicator
    FI90646C (en) * 1991-06-13 1994-03-10 Kone Oy Local automatic volume control of the elevator signaling device
    JP2972431B2 (en) * 1992-01-29 1999-11-08 株式会社河合楽器製作所 Sound generator
    DE4219067A1 (en) * 1992-06-11 1993-12-16 Gerd R Dipl Ing Wetzler Warning personnel and vehicles in track area of railway lines - protecting against approaching and passing railway vehicles, also departing vehicles, using source producing continuous body sound signals in track rails.
    DE4422308C2 (en) * 1994-06-17 2000-01-13 Zoellner Gmbh Automatic rotten warning device

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    Publication number Publication date
    PT901111E (en) 2003-08-29
    EP0901111A3 (en) 2000-01-12
    EP0901111A2 (en) 1999-03-10
    ATE235728T1 (en) 2003-04-15
    DK0901111T3 (en) 2003-06-16
    DE59807622D1 (en) 2003-04-30
    DE19738568C1 (en) 1999-03-11
    ES2195243T3 (en) 2003-12-01

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