System and method for measuring moving vehicle information using electrical time domain reflectometry
First Claim
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1. A system for measuring moving vehicle information, comprising:
- an electrical transmission-line sensor configured to provide an electrical impedance change in response to a wheel-load of a moving vehicle;
an electrical time domain reflectometry signal processing system capable of measuring the electrical impedance change of the electrical transmission-line sensor and converting the electrical impedance change to a signal; and
a data-processing system capable of extracting the moving vehicle information of the moving vehicle from the signal.
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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.
40 Citations
42 Claims
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1. A system for measuring moving vehicle information, comprising:
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an electrical transmission-line sensor configured to provide an electrical impedance change in response to a wheel-load of a moving vehicle; an electrical time domain reflectometry signal processing system capable of measuring the electrical impedance change of the electrical transmission-line sensor and converting the electrical impedance change to a signal; and a data-processing system capable of extracting the moving vehicle information of the moving vehicle from the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for measuring information about a moving vehicle comprising:
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an electrical time domain reflectometry data processing system for extracting information about the vehicle from a reflected electrical signal; and an electrical transmission-line sensor configured to provide an electrical impedance change in response to a wheel-load of the moving vehicle. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for measuring moving vehicle information, comprising:
measuring a change in the electrical impedance of an electrical transmission-line sensor as the electrical transmission-line sensor is loaded by a moving vehicle, using electrical time domain reflectometry signal processing. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
Specification