Device orientation calibration system

    公开(公告)号:US12066301B1

    公开(公告)日:2024-08-20

    申请号:US17934797

    申请日:2022-09-23

    Applicant: Samsara Inc.

    CPC classification number: G01C25/005 G01C21/16

    Abstract: A device orientation calibration system to perform operations that include: accessing inertial measurement unit (IMU) data generated by an IMU mounted upon an object that corresponds with a first reference frame, the IMU data indicating a second reference frame that comprises a Z-axis, a Y-axis, and an X-axis; performing a calibration of the IMU data to align the second reference frame of the IMU with the first reference frame of the object, the performing the calibration comprising: determining a gravitational vector based on a first portion of the IMU data; applying a first rotation to the IMU data to align the Z-axis of the second reference frame with the gravitational vector; determining a forward motion vector based on a second portion of the IMU data; and applying a second rotation to the IMU data to align the X-axis of the second reference frame with the forward motion vector.

    Selective recording of sensor data within a system gateway

    公开(公告)号:US12302034B1

    公开(公告)日:2025-05-13

    申请号:US17647798

    申请日:2022-01-12

    Applicant: Samsara Inc.

    Abstract: A selective recording system to perform operations that include: accessing, at a system gateway, a data stream generated by a sensor device; determining a property of a portion of the data stream at the system gateway, the property of the portion of the data stream comprising a value; determining that the value of the property of the portion of the data stream transgresses a threshold value; and recording the portion of the data stream within a database of the system gateway in response to the determining that the property of the portion of the data stream transgresses the threshold value.

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