Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020117276 - MULTI-THRESHOLD LIDAR DETECTION

Publication Number WO/2020/117276
Publication Date 11.06.2020
International Application No. PCT/US2018/065038
International Filing Date 11.12.2018
IPC
G01S 17/02 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
G01S 17/93 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
93for anti-collision purposes
CPC
G01S 17/14
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted pulse-modulated waves
14wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
G01S 17/86
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
86Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
G01S 17/931
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 7/4873
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
486Receivers
487Extracting wanted echo signals ; , e.g. pulse detection
4873by deriving and controlling a threshold value
Applicants
  • BEIJING VOYAGER TECHNOLOGY CO, LTD. [CN]/[CN]
Inventors
  • WU, John
  • KONG, Lingkai
Agents
  • EUREK, Justin
Priority Data
16/213,99007.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-THRESHOLD LIDAR DETECTION
(FR) DÉTECTION LIDAR MULTISEUIL
Abstract
(EN)
A method for operating a LiDAR system in an automobile that can include receiving noise data corresponding to an ambient noise level, receiving false positive data corresponding to a rate of false positive object detection occurrences; determining an object detection range spanning a distance defined by a minimum range of object detection and a maximum range of object detection for the LiDAR system; generating an object detection threshold value for detecting objects based on the noise data and the rate of false positive data; applying the object detection threshold value to each of a plurality of range values within the object detection range; and applying a gain sensitivity profile to the object detection threshold value at each of a plurality of range values.
(FR)
L'invention concerne un procédé de fonctionnement d'un système LiDAR dans une automobile qui peut consister à recevoir des données de bruit correspondant à un niveau de bruit ambiant, la réception de données faussement positives correspondant à un taux d'occurrences de détection d'objet faussement positive; déterminer une plage de détection d'objet couvrant une distance définie par une plage minimale de détection d'objet et une plage maximale de détection d'objet pour le système LiDAR; générer une valeur de seuil de détection d'objet pour détecter des objets basée sur des données de bruit et le taux de données faussement positives; appliquer la valeur de seuil de détection d'objet à chaque valeur d'une pluralité de valeurs de plage dans la plage de détection d'objet; et appliquer un profil de sensibilité de gain à la valeur de seuil de détection d'objet à chaque valeur d'une pluralité de valeurs de plage.
Also published as
Latest bibliographic data on file with the International Bureau