CA2461411A1 - Vehicular traffic sensor - Google Patents

Vehicular traffic sensor Download PDF

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Publication number
CA2461411A1
CA2461411A1 CA002461411A CA2461411A CA2461411A1 CA 2461411 A1 CA2461411 A1 CA 2461411A1 CA 002461411 A CA002461411 A CA 002461411A CA 2461411 A CA2461411 A CA 2461411A CA 2461411 A1 CA2461411 A1 CA 2461411A1
Authority
CA
Canada
Prior art keywords
sensor
components
board
antennas
antenna
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.)
Granted
Application number
CA002461411A
Other languages
French (fr)
Other versions
CA2461411C (en
Inventor
David V. Arnold
Logan Harris
Michael Jensen
Thomas William Karlinsey
Ryan Smith
Jonathan L. Waite
John B. Dougall, Jr.
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.)
Wavetronix LLC
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25508827&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2461411(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2461411A1 publication Critical patent/CA2461411A1/en
Application granted granted Critical
Publication of CA2461411C publication Critical patent/CA2461411C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • 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
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/35—Details of non-pulse systems
    • G01S7/352—Receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Details Of Aerials (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A vehicle traffic sensor for detecting and monitoring vehicular targets includes a sensor (500) that employs a planar design resulting in a reduced profile sensor. The sensor (500) includes a multi-layer radio frequency board (520) with RF components (522) on one of the sides and both isolation and planar array antennas (526) on the opposing side (528). The antennas (526) are preferably tapered planar array antennas that include one transmit antenna and one receive antenna. The sensor (500) also includes at least one logic or signal processing board (530) populated with components (534) on a first side (532) and a ground plane (538) on a second side positioned toward the RF
components (522) of the RF board (520) to form an RF shield. The boards are housed within a housing (502) that is permeable, at least on the side through which the antenna structures propagate.
CA002461411A 2001-09-27 2002-08-29 Vehicular traffic sensor Expired - Lifetime CA2461411C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/964,668 2001-09-27
US09/964,668 US6693557B2 (en) 2001-09-27 2001-09-27 Vehicular traffic sensor
PCT/US2002/027630 WO2003027986A1 (en) 2001-09-27 2002-08-29 Vehicular traffic sensor

Publications (2)

Publication Number Publication Date
CA2461411A1 true CA2461411A1 (en) 2003-04-03
CA2461411C CA2461411C (en) 2008-11-18

Family

ID=25508827

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002461411A Expired - Lifetime CA2461411C (en) 2001-09-27 2002-08-29 Vehicular traffic sensor

Country Status (6)

Country Link
US (3) US6693557B2 (en)
EP (1) EP1438702B1 (en)
AT (1) ATE432519T1 (en)
CA (1) CA2461411C (en)
DE (1) DE60232455D1 (en)
WO (1) WO2003027986A1 (en)

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US6693557B2 (en) 2004-02-17
US20030058133A1 (en) 2003-03-27
US20040135703A1 (en) 2004-07-15
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CA2461411C (en) 2008-11-18
US7427930B2 (en) 2008-09-23
ATE432519T1 (en) 2009-06-15
USRE48781E1 (en) 2021-10-19

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