公开(公告)号：US11485369B2

公开(公告)日：2022-11-01

申请号：US16931743

申请日：2020-07-17

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Hari Balakrishnan ,  William Bradley ,  Samuel Ross Madden ,  Jun-geun Park

IPC: B60W40/09 ,  H04W4/02 ,  B60W40/10 ,  B60W40/08 ,  H04W4/00

Abstract: Among other things, information generated by sensors of a mobile phone and indicative of motion of the mobile phone and state information indicative of a state of operation of the mobile phone are monitored. Based on the monitoring, distraction by a user of the mobile phone who is a driver of a vehicle is determined.

公开(公告)号：US20220303648A1

公开(公告)日：2022-09-22

申请号：US17837423

申请日：2022-06-10

Applicant: Cambridge Mobile Telematics Inc. ,  Discovery Limited

Inventor： Hari Balakrishnan ,  Lewis David Girod ,  Ilan Ossin

IPC: H04Q9/00 ,  G07C5/00 ,  G07C5/08

Abstract: A sensor tag which in use will be affixed to a vehicle for obtaining vehicle telematics data includes a battery for powering the tag and a processor running executable code to process accelerometer data. An accelerometer measures the acceleration of the tag and thereby of the vehicle, and also controls the operation of the processor. A memory is used for storing a unique tag identifier of the tag and for storing trip data including information about trips and acceleration data. Finally, a communication module is used for short range wireless communication with a mobile communications device located in the vehicle via a short range wireless communications protocol, the communication module transmitting the tag's unique identifier and a sequence of time stamped acceleration data. The mobile communications device obtains GPS data, combines this with the acceleration date and transmits this to a server for analysis.

公开(公告)号：US11276255B2

公开(公告)日：2022-03-15

申请号：US16318051

申请日：2017-07-14

Applicant: CAMBRIDGE MOBILE TELEMATICS, INC.

Inventor： William Francis Bradley ,  Lewis David Girod ,  Hari Balakrishnan ,  Greg Padowski

IPC: G07C5/04 ,  G07C5/10 ,  G01N29/44 ,  G01P3/02 ,  G06Q40/08 ,  G01P3/48 ,  G01P3/50 ,  G01C21/16 ,  G07C5/00

Abstract: An approach to determining vehicle usage makes use of a sensor that provides a vibration signal associated with the vehicle, and that vibration signal is used to infer usage. Usage can include distance traveled, optionally associated with particular ranges of speed or road type. In a calibration phase, auxiliary measurements, for instance based on GPS signals, are used to determine a relationship between the vibration signal and usage. In a monitoring phase, the determined relationship is used to infer usage from the vibration signal.

公开(公告)号：US10759441B1

公开(公告)日：2020-09-01

申请号：US16403776

申请日：2019-05-06

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Hari Balakrishnan ,  William Bradley ,  Samuel Ross Madden ,  Jun-geun Park

IPC: B60W40/09 ,  H04W4/02 ,  B60W40/08

Abstract: Among other things, information generated by sensors of a mobile phone and indicative of motion of the mobile phone and state information indicative of a state of operation of the mobile phone are monitored. Based on the monitoring, distraction by a user of the mobile phone who is a driver of a vehicle is determined.

公开(公告)号：US20200074326A1

公开(公告)日：2020-03-05

申请号：US16559711

申请日：2019-09-04

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Hari Balakrishnan ,  Samuel Ross Madden

IPC: G06N5/04 ,  G06F16/28 ,  G06F16/56 ,  G06N20/00

Abstract: Data processing techniques and systems for processing telematics data associated with a vehicle, such as an automobile, to classify how the vehicle is being operated by a driver. The telematics data can include the use of image data captured by a camera of the vehicle. The image data is processed in conjunction with vehicular telematics data such as position, speed, and acceleration data of the vehicle obtained from, for example, smartphone sensors. The image data is processed and used by a processing system to provide a context for the telematics data. The image data and the telematics data are classified by the processing system to identify driving behavior of the driver, determine driving maneuvers that have occurred, scoring driving quality of the driver, or a combination of them.

公开(公告)号：US10529236B1

公开(公告)日：2020-01-07

申请号：US16155416

申请日：2018-10-09

Applicant: Cambridge Mobile Telematics Inc.

Inventor： Hari Balakrishnan

IPC: G08G1/16 ,  H04W4/02

Abstract: Among other aspects, information is received at or from a mobile device. The information is derived from one or more position or motion sensors of the mobile device. The derived information is indicative of a position or a velocity of the mobile device. The position or the velocity of the mobile device conforms to a position or a velocity of a vehicle. The derived information is used to identify a dangerous situation involving the vehicle and a person on foot or a bicyclist. A notification is provided of the dangerous situation.

公开(公告)号：US10262530B2

公开(公告)日：2019-04-16

申请号：US15384730

申请日：2016-12-20

Applicant: Cambridge Mobile Telematics

Inventor： William Francis Bradley ,  Hari Balakrishnan ,  Paresh Govind Malalur

IPC: G08G1/052 ,  G06Q40/08 ,  G08G1/01 ,  G08G1/0967

Abstract: Customize safe speeds for vehicles are determined from information that is collected from multiple trips and multiple drivers across many road segments. The information collected includes the speed traveled along the road segment, possibly along with additional information, such as (for example) driver, time of day, day of week, weather and road conditions, angle of the sun or other factors. Given information from a new trip, the driver's speed can be compared on each road segment with relevant data from previous trips (from e.g., similar roads, weather conditions, drivers). The comparison yields a score representing the safety of the driver's speed.

公开(公告)号：US20180332456A1

公开(公告)日：2018-11-15

申请号：US16025968

申请日：2018-07-02

Applicant: Discovery Limited ,  Cambridge Mobile Telematics

Inventor： Ilan Ossin ,  Hari Balakrishnan ,  Lewis David Girod

IPC: H04W4/80 ,  H04W64/00 ,  H04W4/02 ,  H04W4/40 ,  B60R25/32 ,  B60R25/102 ,  B60R25/33

CPC classification number: H04W4/80 ,  B60R25/102 ,  B60R25/32 ,  B60R25/33 ,  H04W4/027 ,  H04W4/046 ,  H04W4/40 ,  H04W64/006

Abstract: A system for tracking objects includes tracking devices each attached to an object to be tracked and including a short range communications module. A server includes a processor and a memory. A mobile communications device (typically a mobile telephone) includes memory for storing an identification of the mobile device, a long range communication module for communication over a cellular communication network and a short range communications module for receiving short range signals transmitted from tracking devices. The mobile telephone also includes a location determination module to determine the location of the mobile telephone. On receipt of a short range distress signal from a tracking device, a location is obtained from the location module and a signal transmitted to the server including at least the identification of the tracking device, a time of receipt of the short range signal from the tracking device and the determined location of the tracking device when the short range signal was received.

公开(公告)号：US09228836B2

公开(公告)日：2016-01-05

申请号：US13832456

申请日：2013-03-15

Applicant: Cambridge Mobile Telematics

Inventor： Lewis D. Girod ,  Hari Balakrishnan ,  Samuel Ross Madden

IPC: G01P15/00 ,  G01C15/00 ,  G01P15/08 ,  G01C21/16 ,  G01C21/20 ,  G01C21/10

CPC classification number: G01C15/00 ,  G01C21/10 ,  G01C21/165 ,  G01C21/20 ,  G01P15/0891

Abstract: Accurate longitudinal acceleration, lateral acceleration (perpendicular to the principal direction of motion, and velocity, is inferred by processing raw data from a commodity three-axis accelerometer that may be oriented arbitrarily in a moving vehicle (or carried by a moving user), and whose orientation and position may change arbitrarily during the motion. The approach is applicable to a range of applications, including insurance telematics, driver behavior and risk assessment, and road surface quality assessment.

Abstract translation: 精确的纵向加速度，横向加速度（垂直于主要运动方向和速度）通过处理可能在移动车辆（或由移动用户携带）中任意定向的商品三轴加速度计的原始数据来推断，以及 其方向和位置可能在运动过程中任意变化，该方法适用于一系列应用，包括保险远程信息处理，驾驶员行为和风险评估以及路面质量评估。

公开(公告)号：US20150300827A1

公开(公告)日：2015-10-22

申请号：US14647638

申请日：2013-06-04

Applicant: CAMBRIDGE MOBILE TELEMATICS

Inventor： Paresh Govind Malalur ,  Hari Balakrishnan ,  Samuel Ross Madden

IPC: G01C21/30 ,  G01S19/13 ,  G06Q40/08

CPC classification number: G01C21/30 ,  G01S19/13 ,  G06Q40/08 ,  H04W4/029 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164

Abstract: An approach to telematics using mobile devices provides battery-efficient trajectory and mileage inference from inaccurate and intermittent location data. Accurate trajectories of how users or vehicles move in the physical world are formed by processing raw position estimates obtained from noisy, inaccurate, and error-prone position sensors on mobile devices, where the position data may also arrive intermittently with long time gaps. The trajectory is formed using the process of map matching, which determines the trajectory on a map that best explains the sequence of position observations.

Abstract translation: 使用移动设备的远程信息处理方法通过不精确和间歇的位置数据提供电池有效的轨迹和里程推理。 用户或车辆在物理世界中移动的准确轨迹是通过处理从移动设备上的噪声，不准确和易错位置传感器获得的原始位置估计来形成的，其中位置数据也可能间断地长时间间隔地到达。 使用地图匹配的过程形成轨迹，该过程确定地图上的轨迹，最能解释位置观测序列。