IE781748L - Measuring systems - Google Patents

Measuring systems

Info

Publication number
IE781748L
IE781748L IE781748A IE174878A IE781748L IE 781748 L IE781748 L IE 781748L IE 781748 A IE781748 A IE 781748A IE 174878 A IE174878 A IE 174878A IE 781748 L IE781748 L IE 781748L
Authority
IE
Ireland
Prior art keywords
vehicle
detector
emitters
beams
path
Prior art date
Application number
IE781748A
Other versions
IE47432B1 (en
Original Assignee
British Railways Board
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 British Railways Board filed Critical British Railways Board
Publication of IE781748L publication Critical patent/IE781748L/en
Publication of IE47432B1 publication Critical patent/IE47432B1/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/04Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/043Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/015Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Traffic Control Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)

Abstract

Measuring system. It comprises a pair of sensing stations, spaced apart a known distance along a path of travel of the vehicle, each detection station comprising a series of electromagnetic radiation emitters extending vertically, disposed on a side of the path and at least one sensor disposed on the other side. The beams from the emitters are directed at the detector so that each of the parts of the vehicle which is located between the emitters and the detector intercepts some of the beams to produce a variation in characteristic of the electromagnetic radiation incident on the detector which has the function of identifying this part of the vehicle. Data processing means act to the outputs of the detectors to the two stations to provide a measure of the vehicle in relation to the speed. [FR2404197A1]
IE1748/78A 1977-09-23 1978-08-29 Improvements relating to measuring systems IE47432B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39730/77A GB1573188A (en) 1977-09-23 1977-09-23 Measuring systems

Publications (2)

Publication Number Publication Date
IE781748L true IE781748L (en) 1979-03-23
IE47432B1 IE47432B1 (en) 1984-03-21

Family

ID=10411157

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1748/78A IE47432B1 (en) 1977-09-23 1978-08-29 Improvements relating to measuring systems

Country Status (12)

Country Link
BE (1) BE870681A (en)
DE (1) DE2838583A1 (en)
DK (1) DK422878A (en)
ES (1) ES473597A1 (en)
FI (1) FI782758A (en)
FR (1) FR2404197A1 (en)
GB (1) GB1573188A (en)
IE (1) IE47432B1 (en)
IT (1) IT1098909B (en)
NL (1) NL7808941A (en)
NO (1) NO783226L (en)
SE (1) SE7809235L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1192491B (en) * 1982-08-10 1988-04-13 Fiorello Sodi AUTOMATIC EQUIPMENT FOR SPEED CONTROL OF VEHICLES IN TRANSIT, WITH SELECTION VEHICLES, IN PARTICULAR FOR DISCRIMINATION BETWEEN HEAVY VEHICLES AND VEHICLES
DE3432355A1 (en) * 1984-09-03 1986-03-13 Siemens AG, 1000 Berlin und 8000 München Device for determining the wheel diameter of railway carriages
GB2174195A (en) * 1985-04-25 1986-10-29 Developia Systems Ab An arrangement and a method for the measurement of the weights and/or dimensions and/or volumes of articles
JPS63503167A (en) * 1985-10-07 1988-11-17 シガロフ ハガイ Control signal generation
GB8600239D0 (en) * 1986-01-07 1986-02-12 Bicc Plc Velocity measurement
GB8725130D0 (en) * 1987-10-27 1987-12-02 Hughes Ltd Stewart Blade incidence tracker system
GB2231952A (en) * 1989-05-03 1990-11-28 Serco Limited Vehicle length measurement system
FR2670404B1 (en) * 1990-12-12 1995-05-12 Dassault Electronique DEVICE AND METHOD FOR AUTOMATIC CLASSIFICATION OF HANDHELD VEHICLES.
GB9115745D0 (en) * 1991-07-20 1991-09-04 Longdin & Browning Surveys Lim Method and apparatus for dimensional measurement
CA2132346A1 (en) * 1992-03-18 1993-09-30 Robert Ciolli Vision apparatus
DE4311991A1 (en) * 1993-04-06 1994-10-13 Refit Ev Method and arrangement for determining traffic variables
DE19717661A1 (en) * 1997-04-25 1998-10-29 Krupp Foerdertechnik Gmbh Continuous identification method of essential characteristics of rail vehicle
FR3078810B1 (en) * 2018-03-08 2020-04-03 Idemia Identity And Security DEVICE AND METHOD FOR DIFFERENTIATING A HEAVY WEIGHT FOR TRANSPORTING GOODS FROM A COACH

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB960922A (en) * 1961-11-14 1964-06-17 British Iron Steel Research Improvements in and relating to measuring apparatus
FR2088131A1 (en) * 1970-05-21 1972-01-07 Subra Jacques
BE790341A (en) * 1971-10-29 1973-04-20 Siderurgie Fse Inst Rech
US3872283A (en) * 1973-07-13 1975-03-18 Cadre Corp Vehicle identification method and apparatus
IT1044402B (en) * 1975-06-19 1980-03-20 Autostrade Concess Const SCANNING BARRIER FOR THE DISCRIMINATION AND COUNTING OF OBJECTS AND MORE SPECIFICALLY OF VEHICLES IN TRANSIT THROUGH A LAMINAR BARRIER OF ELECTROMAGNETIC MICROWAVES

Also Published As

Publication number Publication date
FI782758A (en) 1979-03-24
DK422878A (en) 1979-03-24
BE870681A (en) 1979-01-15
FR2404197A1 (en) 1979-04-20
IT1098909B (en) 1985-09-18
FR2404197B1 (en) 1982-02-19
GB1573188A (en) 1980-08-20
IT7828021A0 (en) 1978-09-25
SE7809235L (en) 1979-03-24
NO783226L (en) 1979-03-26
ES473597A1 (en) 1979-04-16
DE2838583A1 (en) 1979-04-05
IE47432B1 (en) 1984-03-21
NL7808941A (en) 1979-03-27

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Legal Events

Date Code Title Description
MK9A Patent expired