公开(公告)号：US12111389B2

公开(公告)日：2024-10-08

申请号：US17027501

申请日：2020-09-21

Applicant: Argo AI, LLC

Inventor： Jonathan C. Berry ,  Duc H. Vu

IPC: G01S13/86 ,  G01S13/58 ,  G01S13/931

CPC classification number: G01S13/865 ,  G01S13/58 ,  G01S13/931

Abstract: Devices, systems, and methods are provided for radar elevation angle validation. A radar elevation angle validation device transmit, from a radar, one or more signals towards a corner reflector situated in a direction of the radar. The radar elevation angle validation device may receive, at the radar, reflected signals from the corner reflector. The radar elevation angle validation device may measure signal energy of at least one of the reflected signals. The radar elevation angle validation device may access a baseline dataset based on the measured signal energy. The radar elevation angle validation device may retrieve a radar elevation angle from the baseline dataset corresponding to the measured signal energy. The radar elevation angle validation device may compare the radar elevation angle to a validation threshold. The radar elevation angle validation device may determine a radar validation status based on the comparison.

公开(公告)号：US11959955B2

公开(公告)日：2024-04-16

申请号：US17027489

申请日：2020-09-21

Applicant: Argo AI, LLC

Inventor： Jonathan C. Berry ,  Duc H. Vu

IPC: G01R29/10 ,  G01S7/40 ,  G01S13/931

CPC classification number: G01R29/105 ,  G01S7/4052 ,  G01S13/931

Abstract: Devices, systems, and methods are provided for an enhanced anechoic chamber. An enhanced anechoic chamber device may operate a gimbal setup attached to a mounting arm of an anechoic chamber and a radar under test to modify an azimuth angle and an elevation angle of a radar under test. The enhanced anechoic chamber device may cause the radar under test to transmit one or more signals towards one or more reflectors situated in a field of view of the radar through an aperture of an anechoic chamber, wherein the one or more reflectors are situated outside the anechoic chamber. The enhanced anechoic chamber device may receive reflected signals from the one or more reflectors at the radar under test, wherein the reflected signals pass through the aperture before reaching the radar under test. The enhanced anechoic chamber device may measure signal energy of at least one of the reflected signals. The enhanced anechoic chamber device may generate an output indicating an operational status of the radar under test.

公开(公告)号：US12055657B2

公开(公告)日：2024-08-06

申请号：US18298568

申请日：2023-04-11

Applicant: Argo AI, LLC

Inventor： Jonathan C. Berry ,  Duc H. Vu

IPC: G01S7/40 ,  G01S13/08 ,  G01S13/931

CPC classification number: G01S7/40 ,  G01S13/08 ,  G01S13/931

Abstract: Devices, systems, and methods are provided for radar elevation angle measurement. A radar elevation angle measurement system may transmit one or more signals from a radar towards a reflection structure comprised of individually controlled motors operable to rotate one or more corner reflectors. The radar elevation angle measurement system may receive echo signals at the radar from each of the one or more corner reflectors that sequentially transitioned to an ON position based on each of the one or more corner reflectors being sequentially rotated to be in an ON then an OFF positions. The radar elevation angle measurement system may collect data associated with the echo signals received from the one or more corner reflectors. The device may identify peak signal values based on the collected data. The radar elevation angle measurement system may calculate a radar pitch angle of the radar based on the peak signal values.

公开(公告)号：US11656326B2

公开(公告)日：2023-05-23

申请号：US17027468

申请日：2020-09-21

Applicant: Argo AI, LLC

Inventor： Jonathan C. Berry ,  Duc H. Vu

IPC: G01S7/40 ,  G01S13/08 ,  G01S13/931

CPC classification number: G01S7/40 ,  G01S13/08 ,  G01S13/931

Abstract: An object of the present invention is to provide a method capable of calibrating a sensor function required in a safety design of a radar safety sensor in real time.
A calibration station (11) is provided on a traveling route of an unmanned vehicle (1) on which a safety sensor (3) for detecting an obstacle (2) ahead is mounted, and a standard reflection is provided at a position of a maximum measurement distance (L) of the safety sensor (3) at the calibration station (11). Prior to normal traveling of the unmanned trolley 1, the unmanned trolley 1 is moved to the calibration station 11 in advance, and the reference value obtained by measuring the standard reflector 12 with the safety sensor 3 is taught, During normal operation of the unmanned trolley 1, every time the unmanned trolley 1 reaches the calibration station 11, the measured value obtained by measuring the standard reflector 12 by the safety sensor 3 is compared with a reference value. Calibrate the sensor function of FIG. 1.

公开(公告)号：US20230251351A1

公开(公告)日：2023-08-10

申请号：US18298568

申请日：2023-04-11

Applicant: Argo AI, LLC

Inventor： Jonathan C. Berry ,  Duc H. Vu

IPC: G01S7/40 ,  G01S13/08 ,  G01S13/931

CPC classification number: G01S7/40 ,  G01S13/08 ,  G01S13/931

Abstract: Devices, systems, and methods are provided for radar elevation angle measurement. A radar elevation angle measurement system may transmit one or more signals from a radar towards a reflection structure comprised of individually controlled motors operable to rotate one or more corner reflectors. The radar elevation angle measurement system may receive echo signals at the radar from each of the one or more corner reflectors that sequentially transitioned to an ON position based on each of the one or more corner reflectors being sequentially rotated to be in an ON then an OFF positions. The radar elevation angle measurement system may collect data associated with the echo signals received from the one or more corner reflectors. The device may identify peak signal values based on the collected data. The radar elevation angle measurement system may calculate a radar pitch angle of the radar based on the peak signal values.