FR2204841B1 - - Google Patents

Info

Publication number
FR2204841B1
FR2204841B1 FR7238347A FR7238347A FR2204841B1 FR 2204841 B1 FR2204841 B1 FR 2204841B1 FR 7238347 A FR7238347 A FR 7238347A FR 7238347 A FR7238347 A FR 7238347A FR 2204841 B1 FR2204841 B1 FR 2204841B1
Authority
FR
France
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
Application number
FR7238347A
Other versions
FR2204841A1 (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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7238347A priority Critical patent/FR2204841B1/fr
Publication of FR2204841A1 publication Critical patent/FR2204841A1/fr
Application granted granted Critical
Publication of FR2204841B1 publication Critical patent/FR2204841B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR7238347A 1972-10-30 1972-10-30 Expired FR2204841B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7238347A FR2204841B1 (fr) 1972-10-30 1972-10-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238347A FR2204841B1 (fr) 1972-10-30 1972-10-30

Publications (2)

Publication Number Publication Date
FR2204841A1 FR2204841A1 (fr) 1974-05-24
FR2204841B1 true FR2204841B1 (fr) 1977-08-26

Family

ID=9106384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7238347A Expired FR2204841B1 (fr) 1972-10-30 1972-10-30

Country Status (1)

Country Link
FR (1) FR2204841B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE394146B (sv) * 1975-10-16 1977-06-06 L Olesen Anordning for metning resp kontroll av ett foremals, i synnerhet ett fordons hastighet.
FR2609566B1 (fr) * 1987-01-14 1990-04-13 Armine Procede de determination de la trajectoire d'un corps apte a se deplacer sur une voie et dispositif de mise en oeuvre du procede
US4847772A (en) * 1987-02-17 1989-07-11 Regents Of The University Of Minnesota Vehicle detection through image processing for traffic surveillance and control
FR2679682B1 (fr) * 1991-07-22 1995-05-24 Inrets Procede pour detecter les changements de l'etat d'occupation d'une voie.
WO1993009523A1 (fr) * 1991-11-07 1993-05-13 Traffic Vision Systems International Inc. Procede utilisant des techniques video pour l'acquisition d'images, l'identification et la velocimetrie d'objets en mouvement
FR2685497B1 (fr) * 1991-12-20 1996-05-31 Inrets Procede pour determiner l'etat d'occupation d'une portion de voie apte a etre parcourue par des corps de toute nature.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1262723A (fr) * 1960-04-22 1961-06-05 Csf Procédé et dispositif de mesure de la vitesse de véhicules
DE2035676A1 (fr) * 1970-07-17 1972-01-20 Totsu Kk
FR2102433A5 (fr) * 1970-08-03 1972-04-07 Automatisme Cie Gle

Also Published As

Publication number Publication date
FR2204841A1 (fr) 1974-05-24

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