公开(公告)号：US12112555B1

公开(公告)日：2024-10-08

申请号：US18634353

申请日：2024-04-12

Applicant: Samsara Inc.

Inventor： Sung Chun Lee ,  Nathan Hurst ,  Yan Wang ,  Olamide Akintewe ,  Justin Levine ,  Kenshiro Nakagawa ,  Cole Jurden ,  Rachel Demerly ,  Aravindh Ramesh ,  Kevin Lai ,  Jovanna Bubar ,  Shirish Nair ,  Maisie Wang

IPC: G06V20/59 ,  G06V10/774 ,  G06V40/16

CPC classification number: G06V20/597 ,  G06V10/774 ,  G06V40/161 ,  G06V40/168 ,  G06V40/174

Abstract: Techniques are presented for detecting when drivers drive while drowsy. In some implementations, a drowsiness model is trained with data associated with inward videos and outward videos captured during a trip. The inward videos capture the inside of the cabin with the driver, and the outward videos capture the view in front of the vehicle in the direction of travel. Further, a device at the vehicle periodically calculates a drowsiness scale index value that indicates the level of drowsiness of the driver. Calculating the drowsiness scale index value includes obtaining a set of inward frames from the inward videos; for each inward frame, creating a face image by cropping the inward frame; obtaining a set of outward frames from the outward videos; calculating inward embeddings of the face images and outward embeddings of the outward frames; and calculating, by the drowsiness model, the drowsiness scale index value.

公开(公告)号：US11217044B1

公开(公告)日：2022-01-04

申请号：US17302744

申请日：2021-05-11

Applicant: Samsara Inc.

Inventor： Derrek Harrison ,  Ingo Gerhard Wiegand ,  David Liang ,  John Charles Bicket ,  Sushant Thakur ,  James Michael Rowson ,  Sylvie Lee ,  Bodecker John DellaMaria ,  Kenshiro Nakagawa

IPC: G07C5/06 ,  G01C21/36

Abstract: A map-based notification system configured to perform operations that include: accessing a base-map that comprises a map-tile, the map-tile defining a speed limit of a location; receiving vehicle data that includes speed data; determining that the speed data from the vehicle data transgresses the speed limit associated with the location defined by the map-tile; and causing display of a notification in response to determining that the speed data from the vehicle data transgresses the speed limit associated with the location defined by the map-tile.

公开(公告)号：US11842577B1

公开(公告)日：2023-12-12

申请号：US17456058

申请日：2021-11-22

Applicant: Samsara Inc.

Inventor： Derrek Harrison ,  Ingo Gerhard Wiegand ,  David Liang ,  John Charles Bicket ,  Sushant Thakur ,  James Michael Rowson ,  Sylvie Lee ,  Bodecker John DellaMaria ,  Kenshiro Nakagawa

IPC: G07C5/06 ,  G01C21/36

CPC classification number: G07C5/06 ,  G01C21/3691

Abstract: A map-based notification system configured to perform operations that include: accessing a base-map that comprises a map-tile, the map-tile defining a speed limit of a location; receiving vehicle data that includes speed data; determining that the speed data from the vehicle data transgresses the speed limit associated with the location defined by the map-tile; and causing display of a notification in response to determining that the speed data from the vehicle data transgresses the speed limit associated with the location defined by the map-tile.