SYSTEMS AND METHODS FOR CRASH DETERMINATION

• US 20190075377A1
• Filed: 08/21/2018
• Published: 03/07/2019
• Est. Priority Date: 07/08/2016
• Status: Abandoned Application

• Current Assignee: CalAmp Corporation
• Original Assignee: CalAmp Corporation
• Inventors: Jenkins, Jeff, Bayley, Greg, Byrne, Peter, Chen, Galin
• Application Number:
  US16/106,453
• Publication Number:
  US 20190075377A1
• Time in Patent Office: Days
• CPC Class Codes: B60R 2021/01322 comprising variable thresholds, e.g. depending from other collision parameters
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60W 40/10 related to vehicle motion
• CPC Class Codes: G01P 15/0891 with indication of predetermined acceleration values G01P15/135 takes precedence
• CPC Class Codes: G01S 19/17 Emergency applications
• CPC Class Codes: G01S 19/42 Determining position
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/085 using electronic data carriers
• CPC Class Codes: G08G 1/205 Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/86 Performing a diagnostic of the sensing device
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

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.

Claims

1. A vehicle telematics device, comprising:

a processor; and

a memory connected to the processor and 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.

2. The vehicle telematics device of claim 1, wherein the at least one sensor comprises an accelerometer.

3. The vehicle telematics device of claim 1, wherein the crash curve data is based on vehicle data comprising a vehicle identification number associated with the vehicle.

4. The vehicle telematics device of claim 1, wherein the crash curve data is dynamically determined based on vehicle data describing a weight of the vehicle.

5. The vehicle telematics device of claim 4, wherein the at least one sensor comprises a weight sensor.

6. The vehicle telematics device of claim 1, wherein:

the vehicle telematics system further comprises a communications interface; and

the vehicle telematics unit obtains the sensor data using the communications interface.

7. The vehicle telematics device of claim 1, wherein the set of crash curve data is provided by the remote server system.

8. The vehicle telematics device of claim 1, wherein:

the remote server system comprises a processor and a memory storing a crash analysis application; and

the processor of the remote server system, on reading the crash analysis application, is directed to;

obtain vehicle sensor data from the vehicle telematics device;

obtain vehicle identification data from the vehicle telematics device;

calculate resultant change data based on the obtained sensor data and the vehicle identification data; and

generate crash occurred data when the resultant change data exceeds a threshold value.

9. The vehicle telematics device of claim 8, wherein the processor of the remote server system is further directed to provide notification data comprising the crash occurred data.

10. The vehicle telematics device of claim 1, wherein the crash score data is generated by:

calculating peak resultant data based on the obtained sensor data; and

calculating the crash score data based on a duration of time in which the peak resultant data exceeds the crash curve data.

11. A method for determining when a vehicle has been involved in a crash, comprising:

obtaining sensor data from at least one sensor installed in a vehicle using a vehicle telematics device, where the vehicle telematics device comprises a processor and a memory;

calculating peak resultant data based on the sensor data using the vehicle telematics device, where the peak resultant data describes the acceleration of the vehicle over a first time period;

generating crash score data based on the peak resultant data and a set of crash curve data for the vehicle using the vehicle telematics device, 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

providing the obtained sensor data when the crash score data exceeds a crash threshold to a remote server system using the vehicle telematics device.

12. The method of claim 11, wherein the at least one sensor comprises an accelerometer.

13. The method of claim 11, wherein the crash curve data is based on vehicle data comprising a vehicle identification number associated with the vehicle.

14. The method of claim 11, wherein the crash curve data is dynamically determined based on vehicle data describing a weight of the vehicle.

15. The method of claim 14, wherein the at least one sensor comprises a weight sensor.

16. The method of claim 11, wherein:

the vehicle telematics system further comprises a communications interface; and

the vehicle telematics unit obtains the sensor data using the communications interface.

17. The method of claim 11, wherein the set of crash curve data is provided by the remote server system.

18. The method of claim 11, further comprising:

obtaining vehicle sensor data from the vehicle telematics device using a remote server system comprising a processor and a memory;

obtaining vehicle identification data from the vehicle telematics device using the remote server system;

calculating resultant change data based on the obtained sensor data and the vehicle identification data using the remote server system; and

generating crash occurred data when the resultant change data exceeds a threshold value using the remote server system.

19. The method of claim 18, further comprising providing notification data comprising the crash occurred data using the remote server system.

20. The method of claim 11, wherein the crash score data is generated by:

calculating peak resultant data based on the obtained sensor data using the vehicle telematics device; and

calculating the crash score data based on a duration of time in which the peak resultant data exceeds the crash curve data using the vehicle telematics device.