Patent · US Active

Velocity detection in autonomous devices

US11313966B2 · kind B2 · utility

0Cited by

5References

24Claims

0Family size

Assignee

SINTEFF TTO AS · NO

Inventors

Franck Fleurey · Trondheim, NO
Jakob Høgenes · Trondheim, NO

Key dates

Filing date	Dec 21, 2018
Grant date	Apr 26, 2022
Priority date	—
Expiry date	Dec 21, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01S15/88
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An unmanned aerial vehicle comprising a velocity sensing system is provided. The velocity sensing system comprises a transmitter configured to transmit a first acoustic signal having at least a first frequency and a receiver, configured to detect a second acoustic signal comprising the first acoustic signal after it has been reflected from a reflective surface. The velocity sensing system is configured to determine from the second acoustic signal a second frequency, said second frequency comprising the first frequency after having undergone a Doppler shift; and to use the first and second frequencies to determine a velocity at which the unmanned aerial vehicle is travelling relative to the reflective surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.