Automotive vehicle classification and identification by inductive signature
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United States of America Patent
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Jan 29, 2002
Issued Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Dec 3, 1996
priority date (Note) -
Expired
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Abstract
A system and method for measuring a plurality of successive induction measurements, collectively known as the 'inductive signature' of a vehicle, and classifying the vehicle described by the measured inductive signature. The system includes a blade-type wire-loop configuration, or blade sensor and a corresponding measurement circuit employing a discrete measurement technique, as opposed to the frequency counting technique of the prior art. The system and method produce repeatable inductive signatures at a high resolution that allows for accurate identification and classification of a vehicle.
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