FR2366655A1 - VEHICLE LOCATION DEVICE - Google Patents

VEHICLE LOCATION DEVICE

Info

Publication number
FR2366655A1
FR2366655A1 FR7728216A FR7728216A FR2366655A1 FR 2366655 A1 FR2366655 A1 FR 2366655A1 FR 7728216 A FR7728216 A FR 7728216A FR 7728216 A FR7728216 A FR 7728216A FR 2366655 A1 FR2366655 A1 FR 2366655A1
Authority
FR
France
Prior art keywords
vehicle
fixed station
signal
predetermined
level
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
FR7728216A
Other languages
French (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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of FR2366655A1 publication Critical patent/FR2366655A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

a. Disposif de localisation de véhicules. b. Installation de localisation de véhicules caractérisée en ce qu'elle comprend un ensemble de transmetteurs à poste fixe répartis en des endroits prédéterminés sur le chemin du véhicule, chaque transmetteur émettant un signal prédéterminé, directif, un récepteur à bord du véhicule pour recevoir les signaux des transmetteurs à poste fixe, un générateur de signaux de position répondant à chaque fois que le véhicule a parcouru une distance élémentaire prédéterminée, un moyen de détection de position pour détecter le niveau d'intensité du signal fourni par l'émetteur à poste fixe et pour traiter ce niveau avec des signaux de position pour fournir un signal de détection de position.at. Vehicle tracking device. b. Vehicle location installation characterized in that it comprises a set of fixed station transmitters distributed at predetermined locations on the path of the vehicle, each transmitter transmitting a predetermined, directive signal, a receiver on board the vehicle to receive the signals from fixed station transmitters, a position signal generator responding to each time the vehicle has traveled a predetermined basic distance, position detection means for detecting the level of signal strength provided by the fixed station transmitter and for processing this level with position signals to provide a position detection signal.

FR7728216A 1976-09-30 1977-09-19 VEHICLE LOCATION DEVICE Pending FR2366655A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72832176A 1976-09-30 1976-09-30

Publications (1)

Publication Number Publication Date
FR2366655A1 true FR2366655A1 (en) 1978-04-28

Family

ID=24926371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728216A Pending FR2366655A1 (en) 1976-09-30 1977-09-19 VEHICLE LOCATION DEVICE

Country Status (7)

Country Link
JP (1) JPS5343188A (en)
AU (1) AU512791B2 (en)
CA (1) CA1077592A (en)
DE (1) DE2738811A1 (en)
FR (1) FR2366655A1 (en)
GB (1) GB1544384A (en)
ZA (1) ZA774966B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254262A2 (en) * 1986-07-19 1988-01-27 Sumitomo Electric Industries Limited Roadside beacon system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337221A (en) * 1978-01-19 1982-06-29 Gray Adrian L Method of making thermocouples and products thereof
US4360795A (en) * 1980-10-03 1982-11-23 Honeywell, Inc. Detection means
DK154588C (en) * 1982-06-07 1989-04-24 Storno As POSITION MONITORING SYSTEM
JPS597208A (en) * 1982-07-06 1984-01-14 Nec Corp Position detection system
GB2269287A (en) * 1992-07-28 1994-02-02 Northern Telecom Ltd One-way ranging system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1449018B1 (en) * 1963-07-01 1970-11-12 Philips Patentverwaltung Arrangement for monitoring the traffic situation of vehicles, e.g. Regular buses
DE2539241A1 (en) * 1975-09-03 1977-03-17 Siemens Ag Automated centrallized radio monitoring and control system - is for fleet of vehicles such as omnibuses and has decoder in each vehicle to process messages received via modem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1449018B1 (en) * 1963-07-01 1970-11-12 Philips Patentverwaltung Arrangement for monitoring the traffic situation of vehicles, e.g. Regular buses
DE2539241A1 (en) * 1975-09-03 1977-03-17 Siemens Ag Automated centrallized radio monitoring and control system - is for fleet of vehicles such as omnibuses and has decoder in each vehicle to process messages received via modem

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/72 *
EXBK/76 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254262A2 (en) * 1986-07-19 1988-01-27 Sumitomo Electric Industries Limited Roadside beacon system
EP0254262A3 (en) * 1986-07-19 1988-11-23 Sumitomo Electric Industries Limited Roadside beacon system

Also Published As

Publication number Publication date
JPS5343188A (en) 1978-04-19
DE2738811A1 (en) 1978-04-06
CA1077592A (en) 1980-05-13
ZA774966B (en) 1978-06-28
GB1544384A (en) 1979-04-19
AU512791B2 (en) 1980-10-30
AU2834977A (en) 1979-03-08

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