Measuring pavement deflections using data from laser scanning sensors as well as from high precision accelerometers and gyrometers

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United States of America Patent

PATENT NO 10612994
SERIAL NO

15707004

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Abstract

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A method, system and computer program product for calculating highway and airport pavement deflections. A pavement monitoring system includes a tractor and a semi-trailer, where a rigid horizontal beam is suspended under the semi-trailer. Various sensing elements are attached to the rigid beam, such as laser scanning sensors configured to measure a distance from the laser scanning sensors to the same point on the pavement at two different times, a gyrometer configured to estimate a raw pitch rate, an inertial measurement unit configured to estimate an orientation of the beam and accelerometers configured to measure an acceleration at a same level as corresponding laser scanning sensors. By utilizing these sensing elements, a more accurate pavement deflection is estimated by not relying on indirect measurements. Furthermore, the tractor and semi-trailer of the pavement monitoring system may travel at the velocity of traffic.

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Patent Owner(s)

  • 501 BOARD OF REGENTS THE UNIVERSITY OF TEXAS SYSTEM

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Claudel, Christian Austin, US 13 93
Pasupathy, Praveenkumar Austin, US 3 16
Prozzi, Jorge Austin, US 1 2

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