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DE2438929A1 - Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers - Google Patents

Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers

Info

Publication number
DE2438929A1
DE2438929A1 DE19742438929 DE2438929A DE2438929A1 DE 2438929 A1 DE2438929 A1 DE 2438929A1 DE 19742438929 DE19742438929 DE 19742438929 DE 2438929 A DE2438929 A DE 2438929A DE 2438929 A1 DE2438929 A1 DE 2438929A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
vehicles
system
telephone
optical
accident
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.)
Pending
Application number
DE19742438929
Other languages
German (de)
Inventor
Wilhelm Dr Ing Lepper
Original Assignee
Wilhelm Dr Ing Lepper
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

Links

Classifications

    • 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
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/16Anti-collision systems
    • G08G1/164Centralised systems, e.g. external to vehicles

Abstract

The automatic accident warning system is for use on roads and depends on a telephonic link. In the most straightforward case, where motorways are being monitored, the vehicles each contain a small sonic transmitter which on collision produces a sound at an emergency frequency, possibly ultrasonic. This carries over a fairly short distance to the next telephone point on the motorway, where a special transducer sends a signal to the nearest monitoring post. Optical signals are also possible. For situations other than on motorways, the public telephone system or even power supply system may be used to transmit emergency signals. The cost of suitable devices in the vehicles would be very low.
DE19742438929 1974-08-14 1974-08-14 Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers Pending DE2438929A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742438929 DE2438929A1 (en) 1974-08-14 1974-08-14 Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742438929 DE2438929A1 (en) 1974-08-14 1974-08-14 Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers

Publications (1)

Publication Number Publication Date
DE2438929A1 true true DE2438929A1 (en) 1976-02-26

Family

ID=5923140

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742438929 Pending DE2438929A1 (en) 1974-08-14 1974-08-14 Automatic accident warning system for road vehicles - using sonic or optical transmissions from vehicles which are picked up by telephone line transducers

Country Status (1)

Country Link
DE (1) DE2438929A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641282A1 (en) * 1976-09-14 1978-03-16 Licentia Gmbh System to detect a traffic-if necessary in a rescue control center
DE2912547A1 (en) * 1979-03-29 1980-10-02 Repa Feinstanzwerk Gmbh Emergency call system for vehicles
DE3440120A1 (en) * 1984-11-02 1986-05-15 Bernd Dipl Phys Schubart Device for evaluating reductions in speed
DE4405246A1 (en) * 1994-02-18 1995-08-24 Klimm Gerd Danger warning system for cars
DE4415090A1 (en) * 1994-04-29 1995-11-02 Michael Pietratus Automatic low power emergency call transmitter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641282A1 (en) * 1976-09-14 1978-03-16 Licentia Gmbh System to detect a traffic-if necessary in a rescue control center
DE2912547A1 (en) * 1979-03-29 1980-10-02 Repa Feinstanzwerk Gmbh Emergency call system for vehicles
DE3440120A1 (en) * 1984-11-02 1986-05-15 Bernd Dipl Phys Schubart Device for evaluating reductions in speed
DE4405246A1 (en) * 1994-02-18 1995-08-24 Klimm Gerd Danger warning system for cars
DE4415090A1 (en) * 1994-04-29 1995-11-02 Michael Pietratus Automatic low power emergency call transmitter

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