Method for Measuring the Velocity of a Target Object by Means of LIDAR and LIDAR System

Publication: DE102021113766A1
Published: 2022-12-01
Family Size: 2
Granted: Yes (1/2)

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention details a method for accurately measuring the speed of a target object using LIDAR technology. The process uses laser beams and analyzes changes in the phase of reflected light, passing the light through a special dispersion cell to enable highly precise velocity determination.

Use CasesContent extracted from patent full text and abstract with AI.

  • Automotive driver assistance systems for detecting the speed of other vehicles
  • Industrial automation and robotics requiring object speed measurement
  • Traffic monitoring and speed enforcement through non-contact methods
  • Drones and autonomous vehicles for environment and obstacle detection
  • Security systems for intruder tracking or perimeter monitoring

BenefitsContent extracted from patent full text and abstract with AI.

  • Provides highly accurate, contactless measurement of object velocity
  • Improves reliability and sensitivity compared to previous LIDAR-based methods
  • Can be integrated into existing LIDAR systems for enhanced functionality
  • Operates in real-time, allowing immediate feedback or response
  • Enables safer and smarter transportation and surveillance solutions

Technical Classifications (CPCs)

Main Classifications

Physics & Measurement

Sub Classifications

Measuring & Testing

CPC Codes

G01S7/4816G01S7/4917G01S17/58

Inventors & Applicants

Applicants

Bundesrepublik Deutschland Vertreten durch das Bundesministerium Fuer Wirtsch und Energie Dieses Ver

Humboldt Univ zu Berlin

Patent Abstract

Die Erfindung betrifft ein Verfahren zur Messung der Geschwindigkeit (v) eines Zielobjekts (16) mittels LIDAR, mit den Schritten: (a) Erzeugen eines Mess-Laserstrahls (14) mit zumindest einer Mess-Frequenz (f14), (b) Senden des Mess-Laserstrahls (14) zum Zielobjekt (16), (c) Erfassen von Rück-Laserlicht (18), das vom Zielobjekt (16) reflektiert wurde, (d) Erfassen einer Signal-Phasenlage (φsignal) des Rück-Laserlichts (18) hinter einer Dispersionszelle (20), wobei die Dispersionszelle (20) eine Phasenverschiebung des Rück-Laserlichts (18) in Abhängigkeit von dessen Rücklaserlicht-Frequenz (f18) bewirkt, (e) Erfassen einer Referenz-Phase (φref) des Rück-Laserlichts (18) mittels einer Referenz-Fotodiode (24) vor der Dispersionszelle (20), und (f) Bestimmen der Geschwindigkeit (v) aus der Referenz-Phase (φref) und der Signal-Phasenlage (φsignal).

Key Information

Publication No.

DE102021113766A1

Family ID

83997003

Publication Date

2022-12-01

Application No.

DE102021113766A

Application Date

2021-05-27

Priority Date

2021-05-27

Granted

Yes (1/2)

Possible Cooperation

For further information please contact the transfer office.