PT901111E - PROCESS AND DEVICE FOR ALERTING PEOPLE - Google Patents

PROCESS AND DEVICE FOR ALERTING PEOPLE

Info

Publication number
PT901111E
PT901111E PT98115790T PT98115790T PT901111E PT 901111 E PT901111 E PT 901111E PT 98115790 T PT98115790 T PT 98115790T PT 98115790 T PT98115790 T PT 98115790T PT 901111 E PT901111 E PT 901111E
Authority
PT
Portugal
Prior art keywords
warning signals
during
period
warning
noise value
Prior art date
Application number
PT98115790T
Other languages
Portuguese (pt)
Inventor
Hermann Stein
Original Assignee
Schweizer Electronic M2S 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
Application filed by Schweizer Electronic M2S Ag filed Critical Schweizer Electronic M2S Ag
Publication of PT901111E publication Critical patent/PT901111E/en

Links

Classifications

    • 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

Landscapes

  • 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.
PT98115790T 1997-09-04 1998-08-21 PROCESS AND DEVICE FOR ALERTING PEOPLE PT901111E (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
PT901111E true PT901111E (en) 2003-08-29

Family

ID=7841103

Family Applications (1)

Application Number Title Priority Date Filing Date
PT98115790T PT901111E (en) 1997-09-04 1998-08-21 PROCESS AND DEVICE FOR ALERTING PEOPLE

Country Status (6)

Country Link
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

Also Published As

Publication number Publication date
EP0901111A3 (en) 2000-01-12
EP0901111A2 (en) 1999-03-10
ATE235728T1 (en) 2003-04-15
EP0901111B1 (en) 2003-03-26
DK0901111T3 (en) 2003-06-16
DE59807622D1 (en) 2003-04-30
DE19738568C1 (en) 1999-03-11
ES2195243T3 (en) 2003-12-01

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