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.
MEASURING PAVEMENT DEFLECTIONS USING DATA FROM LASER SCANNING SENSORS AS WELL AS FROM HIGH PRECISION ACCELEROMETERS AND GYROMETERS
2018-04-05
Patent
Elektronische Ressource
Englisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Europäisches Patentamt | 2020
|Transient behaviour of acoustic gyrometers (sv97 1440)
Online Contents | 1998
|Seasonal variations in pavement deflections
Online Contents | 1995
|Surface Deflections of Perpetual Pavement Sections
British Library Conference Proceedings | 2012
|