Sensor deployment for modular pavement slabs
US11840808B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2022 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Oct 24, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2201/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A roadway segment includes a body having a length along a direction of travel, a width along a width axis, and top and bottom halves along a depth axis. The segment also includes a strain sensor array with one or more optical fiber cables embedded in the bottom half of the body. The strain sensor array includes vehicle-strain sensors configured to detect strain on the body resulting from vehicles traveling across the top surface. The segment also includes a processor that operates the plurality of vehicle-strain sensors at a resolution of not greater than one picometer (1 pm). Any segments of the optical fiber cable(s) that intersect are separated from one another depth wise by at least two-tenths of an inch (0.2 in.). Each of the sensors is separated from each other along the width axis by at least two inches (2 in.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.