Method and device for measuring a distance to a target in a multi-user environment by means of at least one detector

US11320514B2 · kind B2 · utility

Assignee

• FASTREE3D SA · CH

Inventors

• Stefan Keller · Mainaschaff, DE
• Lucio Carrara · Lausanne, CH

Key dates

• Filing date: Aug 12, 2016
• Grant date: May 3, 2022
• Expiry date: Sep 21, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for measuring a distance to a target in a multi-user environment by means of at least one sensor, comprising: irradiating the environment by means of a series of radiation pulses, wherein series of radiation pulses are emitted at a determined repetition rate and with a determined random delay; collecting pulses that are reflected or scattered from the environment to at least a detector connected to at least one chronometer; assigning a timestamp at every detected pulse on the detector; subtracting the added delay from every registered timestamp coming from the chronometer, the result corresponding to the time of arrival; determining the statistical distribution of said time of arrival; determining the distance to the target from said statistical distribution.