US 11,536,827 B2 · Method for assessing the amount of rolling required to achieve optimal compaction of pre-rolled asphalt pavement

Abstract

A ground penetrating radar device and/or other sensor such as LIDAR, pressure, or temperature sensors is mounted on a mobile device, and is adapted, during motion of the mobile device, to sense characteristics of asphalt pavement on which the mobile device is moving, prior to compaction of the asphalt pavement by rollers. A processor, functionally associated with at least one sensor, receives from the sensor signals relating to characteristics of the asphalt pavement on which the mobile device is moving, and computes, based on the received signals, at least one compaction characteristic of the asphalt pavement. The processor provides a mapping of computed desired change in compaction characteristics to regions of the asphalt pavement during the rolling process. During rolling, at least one sensor measures the change in compaction and assesses when the change in compaction matches the desired optimal compaction based on the pre-generated map.

Claims16

Dependent claims

A system for determining the change in dielectric property/value or thickness of a pre-rolled asphalt layer necessary to achieve optimal compaction during rolling of the asphalt layer, the system comprising:

a sensor arrangement including sensors, selected from the group consisting of a pressure sensor, a temperature sensor, a Ground Penetrating Radar antenna, a LIDAR/ Light Detection and Ranging sensor, and a magnetic susceptibility meter, said sensor arrangement being disposed on a mobile device, and being adapted, during motion of said mobile device, to sense characteristics of asphalt pavement over which said mobile device is moving, prior to or during compaction of said asphalt pavement;
a processor, functionally associated with said sensors in said sensor arrangement;
and
a non-transitory computer readable storage medium for instructions execution by the processor, said non-transitory computer readable storage medium having stored:
instructions to receive, from said sensors, signals relating to characteristics of said asphalt pavement over which said mobile device is moving;
instructions to compute, based on said received signals, at least one compaction characteristic of said asphalt pavement;
and
instructions to provide a mapping of said computed compaction characteristics to regions of said asphalt pavement.

5 more elements

A method for computing a compaction characteristic of asphalt pavement, the method comprising:

during placement of said asphalt pavement, moving sensors mounted onto a mobile device over a paving area, so as to obtain signals from said sensors for said paving area, said sensors being selected from the group consisting of pressure sensors, temperature sensors, a Ground Penetrating Radar antenna, LIDAR/Light Detection and Ranging sensors, and magnetic sensors;
computing, based on said obtained signals, at least one compaction characteristic of said asphalt pavement;
providing an output mapping said computed compaction characteristic to regions of said asphalt pavement;
wherein said computing comprises computing an initial percent compaction of said asphalt pavement based on at least one of:
pressure signals received from said pressure sensors;
dielectric property/value measurements of said asphalt pavement obtained based on measurements from said Ground Penetrating Radar antenna;
and
a combination of pressure signals received from said pressure sensors, temperature data received from said temperature sensors, and asphalt pavement thickness data computed from signals received from said LIDAR sensors.

5 more elements

Dependencies are inferred from the claim text.

Method for assessing the amount of rolling required to achieve optimal compaction of pre-rolled asphalt pavement

Life of this patent

Method for assessing the amount of rolling required to achieve optimal compaction of pre-rolled asphalt pavement

Life of this patent

Abstract

Claims16