公开(公告)号：US12085634B2

公开(公告)日：2024-09-10

申请号：US17222569

申请日：2021-04-05

Applicant: HELLA GmbH & Co. KGaA

Inventor： Andreas Von Rhein

IPC: G01S13/58 ,  G01S7/35 ,  G01S7/40 ,  G01S13/931

CPC classification number: G01S13/584 ,  G01S7/354 ,  G01S7/4026 ,  G01S13/931 ,  G01S2013/93274 ,  G01S2013/93275

Abstract: A method for capture in a radar system having at least one receive antenna of a vehicle, wherein the following steps are carried out repeatedly: carrying out a capture of a sensor signal in each of the receive antennas of the radar system, wherein the sensor signal captured as a result is specific for a detection of raw targets by the radar system, and carrying out a comparison of the captured sensor signal or the captured sensor signals of different receive antennas for the provision in each case of a phase-adjusted sensor signal, wherein the phase-adjusted sensor signals from different repetitions of the steps are combined to provide a capture result.

公开(公告)号：US12025695B2

公开(公告)日：2024-07-02

申请号：US17273953

申请日：2019-09-03

Applicant: KYOCERA Corporation

Inventor： Tooru Sahara ,  Masamitsu Nishikido ,  Youhei Murakami

IPC: G01S13/931 ,  G01S7/40 ,  G01S13/02

CPC classification number: G01S13/931 ,  G01S7/4026 ,  G01S7/4056 ,  G01S2013/0245

Abstract: An electronic device 1 comprises: a transmitting antenna configured to transmit transmitted waves; a receiving antenna configured to receive reflected waves obtained by reflection of the transmitted waves; and a controller. The controller detects, based on transmitted signals transmitted as the transmitted waves and received signals received as the reflected waves, an object reflecting the transmitted waves. The controller determines frequencies of transmitted waves to be transmitted from the transmitting antenna based on results of receiving, from the receiving antenna, each of reflected waves obtained by reflection of a plurality of transmitted waves with different frequencies transmitted from the transmitting antenna.

公开(公告)号：US12007228B2

公开(公告)日：2024-06-11

申请号：US17520496

申请日：2021-11-05

Applicant: Zoox, Inc.

Inventor： Derek Adams ,  Ian Baldwin ,  Bertrand Robert Douillard ,  Jesse Sol Levinson

IPC: G01B21/16 ,  G01C21/16 ,  G01C21/36 ,  G01C25/00 ,  G01S7/497 ,  G01S17/06 ,  G01S17/87 ,  G01S17/88 ,  G01S7/40 ,  G01S13/06 ,  G01S13/86

CPC classification number: G01B21/16 ,  G01C21/1652 ,  G01C21/1656 ,  G01C21/3602 ,  G01C25/00 ,  G01S7/4972 ,  G01S17/06 ,  G01S17/87 ,  G01S17/88 ,  G01S7/4026 ,  G01S13/06 ,  G01S13/86

Abstract: Perception sensors of a vehicle can be used for various operating functions of the vehicle. A computing device may receive sensor data from the perception sensors, and may calibrate the perception sensors using the sensor data, to enable effective operation of the vehicle. To calibrate the sensors, the computing device may project the sensor data into a voxel space, and determine a voxel score comprising an occupancy score and a residual value for each voxel. The computing device may then adjust an estimated position and/or orientation of the sensors, and associated sensor data, from at least one perception sensor to minimize the voxel score. The computing device may calibrate the sensor using the adjustments corresponding to the minimized voxel score. Additionally, the computing device may be configured to calculate an error in a position associated with the vehicle by calibrating data corresponding to a same point captured at different times.

公开(公告)号：US11920970B2

公开(公告)日：2024-03-05

申请号：US18321024

申请日：2023-05-22

Applicant: Rosemount Tank Radar AB

Inventor： Christer Frövik ,  Olov Edvardsson

IPC: G01F23/284 ,  G01F25/20 ,  G01S7/00 ,  G01S7/02 ,  G01S7/40 ,  G01S13/08 ,  G01S13/42 ,  G01S13/46 ,  G01S13/88 ,  H01Q1/22

CPC classification number: G01F23/284 ,  G01F25/20 ,  G01S7/003 ,  G01S7/025 ,  G01S7/4008 ,  G01S7/4021 ,  G01S7/4026 ,  G01S7/403 ,  G01S13/08 ,  G01S13/426 ,  G01S13/46 ,  G01S13/88 ,  H01Q1/225

Abstract: A method of determining a filling level of a product in a tank having a tank wall, the method comprising: generating and transmitting an electromagnetic first transmit signal; propagating the first transmit signal through a tank atmosphere towards a corner reflector formed by the surface of the product and the tank wall where the surface of the product meets the tank wall, the corner reflector being at a known horizontal distance from the radar level gauge system; receiving an electromagnetic first reflection signal resulting from reflection of the first transmit signal at the corner reflector; determining a measure indicative of a propagation direction of the first reflection signal; and determining the filling level based on the measure indicative of the propagation direction of the first reflection signal and the known horizontal distance between the radar level gauge system and the corner reflector.

公开(公告)号：US11892559B2

公开(公告)日：2024-02-06

申请号：US16719081

申请日：2019-12-18

Applicant: Rohde & Schwarz GmbH & Co. KG

Inventor： Yassen Mikhailov

IPC: G01S7/40 ,  B64C39/02 ,  B64U101/00

CPC classification number: G01S7/40 ,  B64C39/024 ,  G01S7/4026 ,  B64U2101/00 ,  B64U2201/20

Abstract: The invention regards a radar calibration system and a method for moving a radar calibration target along the predefined movement path. The system comprises a radar calibration target, having a reflector of a known radar cross section, the reflector having a discontinuous surface mounted on and at least partially surrounding a drive unit for three dimensionally moving the radar calibration target based on control signals. The calibration target further has a localisation unit for determining a position of the radar calibration target. A control unit is configured to generate the control signals based on position information received from the localisation unit and a desired movement path and the movement of the radar calibration target is then executed by the drive unit based on the control signals.

公开(公告)号：US20240017731A1

公开(公告)日：2024-01-18

申请号：US17862856

申请日：2022-07-12

Applicant: GM Cruise Holdings LLC

Inventor： Juan Fasola ,  Ankit Rohatgi ,  Alexandri Zavodny ,  Zhizhong Yan ,  Pragya Agrawal ,  Mayur Shah ,  Syed Aziz Enam ,  Morgan Wessel ,  Joseph Thibeault

IPC: B60W50/02 ,  G06V20/58 ,  G06T7/80 ,  G07C5/00 ,  G01S7/497 ,  G01S7/40

CPC classification number: B60W50/0205 ,  G06V20/584 ,  G06T7/80 ,  G07C5/008 ,  G01S7/4972 ,  G01S7/4026 ,  G06T2207/30252 ,  B60W2050/0215 ,  B60W2555/60 ,  B60W2420/52 ,  B60W2420/42 ,  B60W2554/802 ,  B60W2520/06

Abstract: System, methods, and computer-readable media for a calibration check process of sensors on an autonomous vehicle (AV) via a drive-through environment mapped with a series of targets. The targets are used to check the calibration of the sensors on the AV as a quality check before the AV is determined fit to drive autonomously. Supervising a calibration process that collects data from the sensors on the AV based on exposure to a series of targets or augmented camera targets. The collected data may be used for extrinsic calibration aimed to determine that extrinsic parameters that define the rigid relationship between sensors are in set checker bounds.

公开(公告)号：US11835646B2

公开(公告)日：2023-12-05

申请号：US17491746

申请日：2021-10-01

Applicant: BPG Sales and Technology Investments, LLC

Inventor： Ryan M. Jefferies ,  David M. DeBoer ,  Jon D. Lawrence

IPC: G01S7/40 ,  G01B11/275

CPC classification number: G01S7/4026 ,  G01B11/275

Abstract: A system and method for aligning a target to an equipped vehicle for calibration of a sensor on the equipped vehicle includes a vehicle support stand upon which an equipped vehicle is disposed in an established known position for calibration of the sensor, and a target adjustment stand configured to moveably hold a target. The target adjustment stand is configured to position the target into a calibration position relative to the sensor on the equipped vehicle based on the established known position of the equipped vehicle on the vehicle support stand whereby the sensor is able to be calibrated using the target.

公开(公告)号：US11709226B2

公开(公告)日：2023-07-25

申请号：US17830337

申请日：2022-06-02

Applicant: AyDeeKay LLC

Inventor： Danny Elad ,  Marko Mlinar ,  Simon Srot ,  Dan Corcos

IPC: G01S7/40 ,  H01Q3/26 ,  G01S7/35 ,  G01S13/931 ,  G01S13/56 ,  G01S13/58 ,  G01S13/34 ,  G01S13/28

CPC classification number: G01S7/4026 ,  G01S7/354 ,  G01S13/282 ,  G01S13/343 ,  G01S13/56 ,  G01S13/584 ,  G01S13/931 ,  H01Q3/267

Abstract: A radar antenna calibration method includes: forming a detection matrix from signals detected by an arrangement of receive antennas in response to chirps transmitted by an arrangement of transmit antennas, the detection matrix having multiple rows corresponding to the chirps, multiple columns corresponding to a signal sample, and multiple planes corresponding the receive antennas; deriving a range matrix by performing a frequency transform on a portion of each row of the detection matrix; extracting a slice of the range matrix, with different rows of the slice being associated with different chirps and with different receive antennas; deriving a velocity matrix from the extracted slice by performing a frequency transform on a portion of each column of the extracted slice; analyzing the velocity matrix to determine a current peak width; and adjusting, based on the current peak width, phase shifts associated with one or more of the receive antennas.

公开(公告)号：US11681015B2

公开(公告)日：2023-06-20

申请号：US17205710

申请日：2021-03-18

Applicant: Aptiv Technologies Limited

Inventor： Alireza Foroozesh ,  Shawn Shi

IPC: G01S7/28 ,  G01S7/40 ,  G01S13/931

CPC classification number: G01S7/2813 ,  G01S7/4026 ,  G01S7/403 ,  G01S13/931

Abstract: This document includes techniques, apparatuses, and systems related to a waveguide with squint alteration, which can improve electromagnetic wave operation. In aspects, squint of electromagnetic waves pertaining to waveguides may be altered and improved. In this example, the techniques also enable the waveguide to direct electromagnetic waves according to respective chambers and one or more apertures, improving the quality of signals transmitted and received. The chambers may be divided according to a divider extending toward an opening of the waveguide, directing electromagnetic waves between the opening and the one or more apertures.

公开(公告)号：US20190249985A1

公开(公告)日：2019-08-15

申请号：US16338647

申请日：2017-09-27

Applicant: Hunter Engineering Company

Inventor： Michael T. Stieff ,  Nicholas J. Colarelli, III ,  Brian M. Cejka

IPC: G01B11/275 ,  G01B11/27

CPC classification number: G01B11/2755 ,  G01B11/272 ,  G01B2210/12 ,  G01B2210/143 ,  G01B2210/283 ,  G01M17/06 ,  G01S7/4026 ,  G01S2007/4086

Abstract: A support structure having a vertical element supporting a set of cameras associated with a vehicle measurement or inspection system together with at least one target structure required for realignment or recalibration of onboard vehicle safety system sensors. A camera crossbeam carried by the support structure locates the set of cameras as required to view a vehicle undergoing measurement or inspection. The target structure is affixed to the vertical element of the support structure, at an elevation suitable for observation by at least one vehicle onboard sensors during a realignment or recalibration procedure. A set of rollers facilitates positioning of the target structure on a supporting floor surface during a realignment or recalibration procedure.