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System and method for measuring moving vehicle information using electrical time domain reflectometry

A technology of vehicle information, time domain reflection, applied in the direction of weighing equipment using electrostatic balance, registration/indication of vehicle operation, measurement of permanent deformation force by measuring gauges, etc., can solve problems such as changes, and achieve cost-effectiveness Effect

Active Publication Date: 2015-12-02
INTERNATIONAL ROAD DYNAMICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, a change in the geometry of the transmission line results in a change in the characteristic impedance that can be measured using TDR techniques

Method used

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  • System and method for measuring moving vehicle information using electrical time domain reflectometry
  • System and method for measuring moving vehicle information using electrical time domain reflectometry
  • System and method for measuring moving vehicle information using electrical time domain reflectometry

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Embodiment approach

[0185] Reference now Figure 5a In one embodiment, a first PDS port 12a, a second PDS port 12b, and a third PDS port 12c are shown. It should be understood that the PDS port 12a is also referred to as the parameter disturbance sensor port 12a. The PDS port 12a, PDS port 12b, and PDS port 12c are connected to the wheel analog front end 501 via corresponding sensor buses. The wheel analog front end 501 is also referred to as the wheel AFE501. The wheel AFE501 is connected to the wheel data converter 503 via a receiver bus, and the wheel AFE501 is also connected to the FPGA 28 via a sensor selector bus. The wheel data converter 503 is connected to the FPGA 28 via the sample bus, and to the computer 34 via the PLL control bus. Those skilled in the art should understand that various numbers of PDS sensors or PDS sensor ports can be used. FPGA28 is connected to the computer via a data bus.

[0186] The ring port 515 or the ring presence detector port is connected to the ring analog...

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Abstract

Systems, apparatus and methods are provided for measuring moving vehicle information. Moving vehicle information may be measured by a sensor configured to respond to one or more wheels of the vehicle, where one or more of the wheels changes the characteristic impedance of the sensor at the wheel's contact location. An electrical time domain reflectometry signal processing system which is capable of measuring the change in the impedance of the sensor and converting the impedance change to a signal may be connected operatively to the sensor. A data-processing system receives the signal and extracts the vehicle information therefrom.

Description

[0001] Cross references to related applications [0002] This application relates to and claims the domestic priority rights of U.S. Provisional Patent Application Serial No. 61 / 772,138 filed on March 4, 2013 according to 35USC§119(e). The entire content of this provisional patent application is clarified by reference Incorporated into this article. [0003] This application relates to and claims the domestic priority rights of the U.S. utility model patent application serial number 13 / 835,797 filed on March 15, 2013 according to 35USC §119(e). The entire content of the utility model patent application is by reference Was explicitly incorporated into this article. Technical field [0004] The embodiments disclosed herein generally relate to intelligent transportation systems. Background technique [0005] Intelligent transportation systems may involve data collection systems, toll collection systems, vehicle classification systems, dynamic weighing (WIM) systems, and other traffic m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03
CPCG01G19/024G07C5/08G07B15/063G08B13/2497G01L1/06G01L1/14G01G7/06
Inventor R·L·汉森M·D·洛克比I·R·梅尔T·W·海彻特
Owner INTERNATIONAL ROAD DYNAMICS
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