公开(公告)号：US20180174484A1

公开(公告)日：2018-06-21

申请号：US15384730

申请日：2016-12-20

Applicant: Cambridge Mobile Telematics

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

IPC: G09B19/16 ,  G08G1/052 ,  G08G1/0967 ,  G09B19/14

CPC classification number: G08G1/052 ,  G06Q40/08 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/0141 ,  G08G1/096716 ,  G08G1/096741 ,  G08G1/096775

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：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：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。