公开(公告)号：US11680823B2

公开(公告)日：2023-06-20

申请号：US16944493

申请日：2020-07-31

Applicant: InvenSense, Inc.

Inventor： Zhongyang Li ,  Joe Youssef ,  Abbas Ataya ,  Sinan Karahan ,  Sankalp Dayal

IPC: G01C25/00 ,  G01C21/20 ,  G06N20/00 ,  G06N5/04 ,  G05D1/02

CPC classification number: G01C25/00 ,  G01C21/20 ,  G05D1/0212 ,  G06N5/04 ,  G06N20/00 ,  G05D2201/0203

Abstract: A mobile robotic device has a motion sensor assembly configured to provide data for deriving a navigation solution for the mobile robotic device. The mobile robotic device temperature is determined for at least two different epochs so that an accumulated heading error of the navigation solution can be estimated based on the determined temperature at the at least two different epochs. A calibration procedure is then performed for at least one sensor of the motion sensor assembly when the estimated accumulated heading error is outside a desired range.

公开(公告)号：US20210033421A1

公开(公告)日：2021-02-04

申请号：US16944493

申请日：2020-07-31

Applicant: InvenSense, Inc.

Inventor： Zhongyang Li ,  Joe Youssef ,  Abbas Ataya ,  Sinan Karahan ,  Sankalp Dayal

IPC: G01C25/00 ,  G01C21/20 ,  G05D1/02 ,  G06N20/00 ,  G06N5/04

Abstract: A mobile robotic device has a motion sensor assembly configured to provide data for deriving a navigation solution for the mobile robotic device. The mobile robotic device temperature is determined for at least two different epochs so that an accumulated heading error of the navigation solution can be estimated based on the determined temperature at the at least two different epochs. A calibration procedure is then performed for at least one sensor of the motion sensor assembly when the estimated accumulated heading error is outside a desired range.

公开(公告)号：US10936841B2

公开(公告)日：2021-03-02

申请号：US16206527

申请日：2018-11-30

Applicant: InvenSense, Inc.

Inventor： Abbas Ataya ,  Bruno Flament

IPC: G06K9/00

Abstract: In a method for darkfield tracking at a sensor, it is determined whether an object is interacting with the sensor. Provided an object is not interacting with the sensor, a determination that a darkfield candidate image can be captured at the sensor is made. It is determined whether to capture a darkfield candidate image at the sensor based at least in part on the determination that a darkfield candidate image can be captured at the sensor. Responsive to making a determination to capture the darkfield candidate image, the darkfield candidate image is captured at the sensor, wherein the darkfield candidate image is an image absent an object interacting with the sensor. A darkfield estimate is updated with the darkfield candidate image.