公开(公告)号：US12238238B2

公开(公告)日：2025-02-25

申请号：US17682360

申请日：2022-02-28

Applicant: CAMBRIDGE MOBILE TELEMATICS INC.

Inventor： Brad Cordova ,  Eddie Vaisman ,  Yuting Qi ,  Sushrut Karnik

IPC: H04M1/72421 ,  B60K28/14 ,  B60R21/00 ,  B60R21/01 ,  B60R21/013 ,  B60R21/015

Abstract: A method for detecting airbag deployment includes operating a plurality of sensors of the mobile device disposed in a vehicle during a drive to obtain a plurality of measurement signals, determining a change in at least one measurement signal of the plurality of measurement signals and that the change exceeds a first threshold. In response to determining that the change exceeds the first threshold, obtaining a pressure measurement signal from a pressure sensor of the plurality of sensors, determining a derivative of the pressure measurement signal, and determining that the derivative of the pressure measurement signal exceeds a second threshold. In response to determining that the derivative of the pressure measurement signal exceeds the second threshold, detecting a deployment of a vehicle airbag based on the change in the at least one measurement signal exceeding the first threshold and the derivative of the pressure measurement signal exceeding the second threshold.

公开(公告)号：US12020571B2

公开(公告)日：2024-06-25

申请号：US17691963

申请日：2022-03-10

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Yuting Qi ,  Rizki Syarif ,  Edward J. Gramer ,  Cornelius F. Young

IPC: G08G1/16

CPC classification number: G08G1/16

Abstract: A method includes receiving, from a first mobile device associated with a first vehicle, first data related to a first event involving the first vehicle, receiving, from a second mobile device associated with a second vehicle, second data related to a second event involving the second vehicle, and determining, based on a comparison between the first data and the second data, a degree of alignment between the first event and the second event. The method also includes determining, based on the degree of alignment between the first event and the second event, that the first event and the second event correspond to a same crash event involving the first vehicle and the second vehicle. The method further includes performing one or more actions based on determining that the first event and the second event correspond to the same crash event.

公开(公告)号：US20220294893A1

公开(公告)日：2022-09-15

申请号：US17682360

申请日：2022-02-28

Applicant: CAMBRIDGE MOBILE TELEMATICS INC.

Inventor： Brad Cordova ,  Eddie Vaisman ,  Yuting Qi ,  Sushrut Karnik

IPC: H04M1/72421 ,  B60R21/015 ,  B60K28/14 ,  B60R21/013

Abstract: A method for detecting airbag deployment includes operating a plurality of sensors of the mobile device disposed in a vehicle during a drive to obtain a plurality of measurement signals, determining a change in at least one measurement signal of the plurality of measurement signals and that the change exceeds a first threshold. In response to determining that the change exceeds the first threshold, obtaining a pressure measurement signal from a pressure sensor of the plurality of sensors, determining a derivative of the pressure measurement signal, and determining that the derivative of the pressure measurement signal exceeds a second threshold. In response to determining that the derivative of the pressure measurement signal exceeds the second threshold, detecting a deployment of a vehicle airbag based on the change in the at least one measurement signal exceeding the first threshold and the derivative of the pressure measurement signal exceeding the second threshold.

公开(公告)号：US20220292974A1

公开(公告)日：2022-09-15

申请号：US17691963

申请日：2022-03-10

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Yuting Qi ,  Rizki Syarif ,  Edward J. Gramer ,  Cornelius F. Young

IPC: G08G1/16

Abstract: A method includes receiving, from a first mobile device associated with a first vehicle, first data related to a first event involving the first vehicle, receiving, from a second mobile device associated with a second vehicle, second data related to a second event involving the second vehicle, and determining, based on a comparison between the first data and the second data, a degree of alignment between the first event and the second event. The method also includes determining, based on the degree of alignment between the first event and the second event, that the first event and the second event correspond to a same crash event involving the first vehicle and the second vehicle. The method further includes performing one or more actions based on determining that the first event and the second event correspond to the same crash event.

公开(公告)号：US20240142244A1

公开(公告)日：2024-05-02

申请号：US18500457

申请日：2023-11-02

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Harrison Kitchen ,  Matthew Evan Lewin ,  Yuting Qi ,  William Abildgaard, JR. ,  Ankit Singhania ,  Edward Gelberg

IPC: G01C21/34

CPC classification number: G01C21/343 ,  G01C21/3484

Abstract: Apparatuses and methods for determining a route are provided. In some examples, the method comprises: receiving measurements of one or more motion sensors of a mobile device disposed in a vehicle; selecting, based on a start time and an end time of a first route, a subset of the measurements; determining, based on the subset of the measurements, turns or stops made by the vehicle as part of the first route and their directions; determining, based on the subset of the measurements, distances of path segments traveled by the vehicle between the turns or stops; constructing an estimated route including a sequence of the turns or stops and path segments; selecting, based on comparing the estimated route and a plurality of candidates routes from a map, the first route; and displaying the map including the first route.

公开(公告)号：US11884225B2

公开(公告)日：2024-01-30

申请号：US17506566

申请日：2021-10-20

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Yuting Qi ,  Rizki Syarif ,  Edward J. Gramer ,  Cornelius F. Young

IPC: B60R21/0132 ,  G08G1/01 ,  G06N3/08

CPC classification number: B60R21/01338 ,  G06N3/08 ,  G08G1/0112 ,  G08G1/0133

Abstract: Techniques are disclosed for detecting a point-of-impact of a vehicle collision. A mobile device receives a set of sensor measurements from sensors of the mobile device. The mobile device generates a crash feature vector from the sensor measurements and one or more point-of-impact features. The mobile device executes a set of classifiers using the crash feature vector and the one or more point-of-impact features. Each classifier of the set of classifiers is configured to generate an output that is partially indicative of a point-of-impact of the collision. The mobile device generates, from the output of each classifier of the set of classifiers, a prediction of a point of impact of the vehicle collision. The mobile device then transmits an indication of the point of impact to a remote device.

公开(公告)号：US20230298409A1

公开(公告)日：2023-09-21

申请号：US18200718

申请日：2023-05-23

Applicant: CAMBRIDGE MOBILE TELEMATICS INC.

Inventor： Sushrut Karnik ,  Burak Erem ,  Yuting Qi ,  Sanujit Sahoo ,  Harrison Kitchen

IPC: G07C5/00 ,  G01P15/08 ,  G01P15/18 ,  G06N3/04 ,  G06N3/08 ,  G07C5/02

CPC classification number: G07C5/008 ,  G01P15/08 ,  G01P15/18 ,  G06N3/04 ,  G06N3/08 ,  G07C5/02 ,  G07C2205/02

Abstract: A method includes receiving, from a mobile device disposed within a vehicle, a set of sensor measurements collected from an accelerometer of the mobile device during a first time period and converting the set of sensor measurements into a frequency domain. The method also includes filtering the set of sensor measurements to eliminate high frequency sensor measurements and defining a set of contiguous windows based on a remaining sensor measurements in the set of sensor measurements. Each contiguous window of the set of contiguous windows represents a contiguous portion of the remaining sensor measurements. The method further includes generating, for each contiguous window of the set of contiguous windows, a set of features by resampling the remaining sensor measurements of the contiguous window at one or more predefined frequencies and generating an estimated speed of the vehicle during the first time period using the set of features.

公开(公告)号：US20250148837A1

公开(公告)日：2025-05-08

申请号：US18915074

申请日：2024-10-14

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Sushrut Karnik ,  Burak Erem ,  Yuting Qi ,  Sanujit Sahoo ,  Harrison Kitchen

IPC: G07C5/00 ,  G01P15/08 ,  G01P15/18 ,  G06N3/04 ,  G06N3/08 ,  G07C5/02

Abstract: A method includes receiving, from a mobile device disposed within a vehicle, a set of sensor measurements collected from an accelerometer of the mobile device during a first time period and converting the set of sensor measurements into a frequency domain. The method also includes filtering the set of sensor measurements to eliminate high frequency sensor measurements and defining a set of contiguous windows based on a remaining sensor measurements in the set of sensor measurements. Each contiguous window of the set of contiguous windows represents a contiguous portion of the remaining sensor measurements. The method further includes generating, for each contiguous window of the set of contiguous windows, a set of features by resampling the remaining sensor measurements of the contiguous window at one or more predefined frequencies and generating an estimated speed of the vehicle during the first time period using the set of features.

公开(公告)号：US12125321B2

公开(公告)日：2024-10-22

申请号：US18200718

申请日：2023-05-23

Applicant: CAMBRIDGE MOBILE TELEMATICS INC.

Inventor： Sushrut Karnik ,  Burak Erem ,  Yuting Qi ,  Sanujit Sahoo ,  Harrison Kitchen

IPC: G07C5/00 ,  G01P15/00 ,  G01P15/08 ,  G01P15/18 ,  G06N3/04 ,  G06N3/08 ,  G07C5/02

CPC classification number: G07C5/008 ,  G01P15/08 ,  G01P15/18 ,  G06N3/04 ,  G06N3/08 ,  G07C5/02 ,  G07C2205/02

Abstract: A method includes receiving, from a mobile device disposed within a vehicle, a set of sensor measurements collected from an accelerometer of the mobile device during a first time period and converting the set of sensor measurements into a frequency domain. The method also includes filtering the set of sensor measurements to eliminate high frequency sensor measurements and defining a set of contiguous windows based on a remaining sensor measurements in the set of sensor measurements. Each contiguous window of the set of contiguous windows represents a contiguous portion of the remaining sensor measurements. The method further includes generating, for each contiguous window of the set of contiguous windows, a set of features by resampling the remaining sensor measurements of the contiguous window at one or more predefined frequencies and generating an estimated speed of the vehicle during the first time period using the set of features.

公开(公告)号：US20240092300A1

公开(公告)日：2024-03-21

申请号：US18522009

申请日：2023-11-28

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Yuting Qi ,  Rizki Syarif ,  Edward J. Gramer ,  Cornelius F. Young

IPC: B60R21/0132 ,  G06N3/08 ,  G08G1/01

CPC classification number: B60R21/01338 ,  G06N3/08 ,  G08G1/0112 ,  G08G1/0133

Abstract: Techniques are disclosed for detecting a point-of-impact of a vehicle collision. A mobile device receives a set of sensor measurements from sensors of the mobile device. The mobile device generates a crash feature vector from the sensor measurements and one or more point-of-impact features. The mobile device executes a set of classifiers using the crash feature vector and the one or more point-of-impact features. Each classifier of the set of classifiers is configured to generate an output that is partially indicative of a point-of-impact of the collision. The mobile device generates, from the output of each classifier of the set of classifiers, a prediction of a point of impact of the vehicle collision. The mobile device then transmits an indication of the point of impact to a remote device.