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FR2636758B1 - Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel - Google Patents

Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel

Info

Publication number
FR2636758B1
FR2636758B1 FR8812309A FR8812309A FR2636758B1 FR 2636758 B1 FR2636758 B1 FR 2636758B1 FR 8812309 A FR8812309 A FR 8812309A FR 8812309 A FR8812309 A FR 8812309A FR 2636758 B1 FR2636758 B1 FR 2636758B1
Authority
FR
France
Prior art keywords
know
vehicle
air
transmitting signals
signals over
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.)
Expired - Fee Related
Application number
FR8812309A
Other languages
English (en)
Other versions
FR2636758A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PLATON JEAN PIERRE
Original Assignee
PLATON JEAN PIERRE
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 PLATON JEAN PIERRE filed Critical PLATON JEAN PIERRE
Priority to FR8812309A priority Critical patent/FR2636758B1/fr
Publication of FR2636758A1 publication Critical patent/FR2636758A1/fr
Application granted granted Critical
Publication of FR2636758B1 publication Critical patent/FR2636758B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B61L23/34—Control, warning or like safety means along the route or between vehicles or trains for indicating the distance between vehicles or trains by the transmission of signals therebetween
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/08—Systems for determining distance or velocity not using reflection or reradiation using radio waves using synchronised clocks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • G08G1/163—Decentralised systems, e.g. inter-vehicle communication involving continuous checking

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
FR8812309A 1988-09-16 1988-09-16 Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel Expired - Fee Related FR2636758B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8812309A FR2636758B1 (fr) 1988-09-16 1988-09-16 Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8812309A FR2636758B1 (fr) 1988-09-16 1988-09-16 Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel

Publications (2)

Publication Number Publication Date
FR2636758A1 FR2636758A1 (fr) 1990-03-23
FR2636758B1 true FR2636758B1 (fr) 1994-09-09

Family

ID=9370212

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8812309A Expired - Fee Related FR2636758B1 (fr) 1988-09-16 1988-09-16 Procede et systeme de transmission par voie hertzienne de signaux permettant notamment a un vehicule de connaitre la distance le separant d'un obstacle potentiel

Country Status (1)

Country Link
FR (1) FR2636758B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434861A1 (de) * 1994-09-29 1996-04-04 Grundig Emv Anordnung zur Sicherung von Bahnstrecken

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3566404A (en) * 1968-12-16 1971-02-23 Trw Inc Vehicle collision avoidance system
US3550129A (en) * 1969-03-28 1970-12-22 Nasa Satellite aided vehicle avoidance system
US3691559A (en) * 1969-03-28 1972-09-12 Navsat Corp Aircraft collision warning system
US4004237A (en) * 1970-05-01 1977-01-18 Harris Corporation System for communication and navigation
US3900847A (en) * 1972-01-21 1975-08-19 Nasa Satellite aided vehicle avoidance system
US4559607A (en) * 1983-07-11 1985-12-17 International Telephone And Telegraph Corporation Arrangement to provide an accurate time-of-arrival indication for a plurality of received signals

Also Published As

Publication number Publication date
FR2636758A1 (fr) 1990-03-23

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse