FR2768589B1 - Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement - Google Patents

Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement

Info

Publication number
FR2768589B1
FR2768589B1 FR9711486A FR9711486A FR2768589B1 FR 2768589 B1 FR2768589 B1 FR 2768589B1 FR 9711486 A FR9711486 A FR 9711486A FR 9711486 A FR9711486 A FR 9711486A FR 2768589 B1 FR2768589 B1 FR 2768589B1
Authority
FR
France
Prior art keywords
crossing
monitoring
light sources
controlling traffic
traffic
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
FR9711486A
Other languages
English (en)
Other versions
FR2768589A1 (fr
Inventor
Michel Lienhard
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.)
Sagem SA
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Priority to FR9711486A priority Critical patent/FR2768589B1/fr
Publication of FR2768589A1 publication Critical patent/FR2768589A1/fr
Application granted granted Critical
Publication of FR2768589B1 publication Critical patent/FR2768589B1/fr
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
    • G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
FR9711486A 1997-09-16 1997-09-16 Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement Expired - Fee Related FR2768589B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9711486A FR2768589B1 (fr) 1997-09-16 1997-09-16 Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9711486A FR2768589B1 (fr) 1997-09-16 1997-09-16 Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement

Publications (2)

Publication Number Publication Date
FR2768589A1 FR2768589A1 (fr) 1999-03-19
FR2768589B1 true FR2768589B1 (fr) 1999-11-12

Family

ID=9511111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9711486A Expired - Fee Related FR2768589B1 (fr) 1997-09-16 1997-09-16 Procede de surveillance d'une pluralite de sources de lumiere destinees a reglementer la circulation a un croisement

Country Status (1)

Country Link
FR (1) FR2768589B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150372B (en) * 1983-11-25 1986-12-10 Ferranti Plc Lamp failure detector
GB2157903B (en) * 1984-04-24 1987-06-17 Plessey Co Plc Lamp monitoring apparatus
US5387909A (en) * 1993-03-25 1995-02-07 Naztec, Inc. Lamp sensing system for traffic lights

Also Published As

Publication number Publication date
FR2768589A1 (fr) 1999-03-19

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
TP Transmission of property
TP Transmission of property
ST Notification of lapse

Effective date: 20110531