Methods and systems for sensing a road surface
US12411082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jan 17, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4709
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An example system for remote sensing of a road surface includes an antenna configured to transmit and receive radiofrequency (RF) signals, where the antenna is configured to attach to a front end of a vehicle; at least one radiofrequency identification (RFID) tag, where the at least one RFID tag is configured to attach to the front end of a vehicle; and an RFID reader, wherein the RFID reader is configured to: cause the antenna to transmit a radiofrequency signal toward a road surface, where the at least one RFID tag receives a backscattered RF signal from the road surface; receive, from the antenna, an RFID signal from the first RFID tag, the RFID signal comprising phase and magnitude information; and analyze the phase and magnitude information to determine a condition of the road surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.