公开(公告)号：US11386723B2

公开(公告)日：2022-07-12

申请号：US16551465

申请日：2019-08-26

Applicant: CalAmp Corp.

Inventor： Jeff Jenkins ,  Greg Bayley ,  Peter Byrne ,  Gallin Chen

IPC: G07C5/00 ,  B60R21/013 ,  H04L67/12 ,  H04L67/01

Abstract: Embodiments of the invention include a vehicle telematics system including a telematics device and a remote server system, wherein the telematics device obtains sensor data from at least one sensor installed in a vehicle, calculates peak resultant data based on the sensor data, generates crash score data based on the peak resultant data and a set of crash curve data for the vehicle, and provides the obtained sensor data when the crash score data exceeds a crash threshold to the remote server system and the remote server system obtains vehicle sensor data and vehicle identification data from the vehicle telematics device, calculates resultant change data and absolute speed change data based on the obtained sensor data and/or the vehicle identification data, and generates crash occurred data when the resultant change data exceeds a first threshold value and when the absolute speed change data is below a second threshold value.

公开(公告)号：US20180053354A1

公开(公告)日：2018-02-22

申请号：US15241517

申请日：2016-08-19

Applicant: CalAmp Corp.

Inventor： Jeff Jenkins ,  Greg Bayley ,  Peter Byrne ,  Gallin Chen

IPC: G07C5/00 ,  H04L29/06 ,  H04L29/08

CPC classification number: G07C5/008 ,  G07C5/0841 ,  H04L67/12 ,  H04L67/42 ,  H04W4/02 ,  H04W4/027 ,  H04W4/44

Abstract: Embodiments of the invention include a vehicle telematics system including a telematics device and a remote server system, wherein the telematics device obtains sensor data from at least one sensor installed in a vehicle, calculates peak resultant data based on the sensor data, generates crash score data based on the peak resultant data and a set of crash curve data for the vehicle, and provides the obtained sensor data when the crash score data exceeds a crash threshold to the remote server system and the remote server system obtains vehicle sensor data and vehicle identification data from the vehicle telematics device, calculates resultant change data and absolute speed change data based on the obtained sensor data and/or the vehicle identification data, and generates crash occurred data when the resultant change data exceeds a first threshold value and when the absolute speed change data is below a second threshold value.

公开(公告)号：US20180012429A1

公开(公告)日：2018-01-11

申请号：US15205385

申请日：2016-07-08

Applicant: CalAmp Corp.

Inventor： Jeff Jenkins ,  Greg Bayley ,  Peter Byrne ,  Gallin Chen

IPC: G07C5/08 ,  G01P15/08 ,  H04Q9/00 ,  G07C5/02 ,  B60R21/013 ,  G01S19/42 ,  G07C5/00 ,  G08G1/00 ,  B60R21/0132

CPC classification number: G07C5/0841 ,  B60R21/013 ,  B60R2021/01322 ,  B60W40/10 ,  G01P15/0891 ,  G01S19/42 ,  G07C5/008 ,  G07C5/02 ,  G08G1/205 ,  H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/86

Abstract: Systems and methods for crash determination in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle telematics device includes a processor and a memory storing a crash determination application, wherein the processor, on reading the crash determination application, is directed to obtain sensor data from at least one sensor installed in a vehicle, calculate peak resultant data based on the sensor data, where the peak resultant data describes the acceleration of the vehicle over a first time period, generate crash score data based on the peak resultant data and a set of crash curve data for the vehicle, where the crash score data describes the likelihood that the vehicle was involved in a crash based on the characteristics of the vehicle and the sensor data, and provide the obtained sensor data when the crash score data exceeds a crash threshold to a remote server system.