FR2721717B1 - Safety device for roads. - Google Patents

Safety device for roads.

Info

Publication number
FR2721717B1
FR2721717B1 FR9407949A FR9407949A FR2721717B1 FR 2721717 B1 FR2721717 B1 FR 2721717B1 FR 9407949 A FR9407949 A FR 9407949A FR 9407949 A FR9407949 A FR 9407949A FR 2721717 B1 FR2721717 B1 FR 2721717B1
Authority
FR
France
Prior art keywords
roads
safety device
safety
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
FR9407949A
Other languages
French (fr)
Other versions
FR2721717A1 (en
Inventor
Guy Dumoulin
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.)
Thomson Hybrides
Original Assignee
Thomson Hybrides
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 Thomson Hybrides filed Critical Thomson Hybrides
Priority to FR9407949A priority Critical patent/FR2721717B1/en
Publication of FR2721717A1 publication Critical patent/FR2721717A1/en
Application granted granted Critical
Publication of FR2721717B1 publication Critical patent/FR2721717B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/164—Centralised systems, e.g. external to vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electromagnetism (AREA)
  • Traffic Control Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR9407949A 1994-06-28 1994-06-28 Safety device for roads. Expired - Fee Related FR2721717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9407949A FR2721717B1 (en) 1994-06-28 1994-06-28 Safety device for roads.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9407949A FR2721717B1 (en) 1994-06-28 1994-06-28 Safety device for roads.

Publications (2)

Publication Number Publication Date
FR2721717A1 FR2721717A1 (en) 1995-12-29
FR2721717B1 true FR2721717B1 (en) 1996-08-14

Family

ID=9464740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9407949A Expired - Fee Related FR2721717B1 (en) 1994-06-28 1994-06-28 Safety device for roads.

Country Status (1)

Country Link
FR (1) FR2721717B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102110365A (en) * 2009-12-28 2011-06-29 日电（中国）有限公司 Road condition prediction method and road condition prediction system based on space-time relationship

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19882277D2 (en) * 1998-02-27 2001-04-26 Mitsubishi Internat Gmbh Traffic management system
FR2786302B1 (en) * 1998-11-20 2001-01-26 Aide A La Comm Par Les Systeme DEVICE FOR MONITORING A VEHICLE TRAFFIC NETWORK
FR2823352B1 (en) * 2001-04-04 2009-04-24 Positive VEHICLE INTERDISTANCE CONTROL INSTALLATION
GB0506723D0 (en) * 2005-04-02 2005-05-11 Agd Systems Ltd Apparatus and method for determining a traffic condition
FR2917219B1 (en) * 2007-06-05 2009-08-07 Autoroutes Paris Rhin Rhone Sa METHOD AND DEVICE FOR DETECTING ROAD CAPS.
JP4924407B2 (en) 2007-12-25 2012-04-25 富士通株式会社 Sensor diagnostic method and sensor diagnostic apparatus
IT1399958B1 (en) * 2010-05-04 2013-05-09 Piaggesi SYSTEM AND METHOD OF MONITORING AND SIGNALING.
ES2654112B1 (en) * 2016-08-10 2018-11-22 Marcos Cristino MARTIN VALIÑO Light beacon with passage sensor for traffic lanes
ES2726290A1 (en) * 2019-02-07 2019-10-03 Miguel Maria Angel De Guidance system and procedure for motorists (Machine-translation by Google Translate, not legally binding)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1013280B (en) * 1974-05-28 1977-03-30 Autostrade Concess Const PERFECTED SYSTEM FOR ELECTRONIC CONTROL OF TRAFFIC IN REAL TIME AND FOR BIDIRECTIONAL TRANSMISSIONS IN CODE AND PHONY BETWEEN OPERATION CENTER AND MOBILE VEHICLES
NL8402094A (en) * 1984-07-02 1986-02-03 Philips Nv METHOD FOR DRIVING A TRAFFIC CONTROL SYSTEM AND THE TRAFFIC CONTROL SYSTEM FOR APPLYING THE METHOD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102110365A (en) * 2009-12-28 2011-06-29 日电（中国）有限公司 Road condition prediction method and road condition prediction system based on space-time relationship
CN102110365B (en) * 2009-12-28 2013-11-06 日电（中国）有限公司 Road condition prediction method and road condition prediction system based on space-time relationship

Also Published As

Publication number Publication date
FR2721717A1 (en) 1995-12-29

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Legal Events

Date Code Title Description
ST Notification of lapse