Patent ID: 11869282
Assignee: CALAMP CORP.
Field: Digital communication (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 10:
11. A method for determining if a vehicle has been involved in a crash, comprising:
obtaining, by a telematics device, sensor data from the at least one sensor installed in a vehicle, wherein the at least one sensor has an accelerometer, and wherein the sensor data is indicative of acceleration data in a forward vector or acceleration data in a lateral vector;
calculating, by the telematics device, peak resultant data based on the sensor data, where the peak resultant data describes the acceleration of the vehicle over a first time period;
generating, by the telematics device, 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;
calculating, by the telematics device, absolute speed change data based on the sensor data;
identifying, by the telematics device, a false positive non-crash event when an oscillating event is detected in the sensor data that decreases in magnitude over time and crosses zero in the sensor data; and
providing, by the telematics device, the obtained sensor data to a remote server system when the crash score data exceeds a crash threshold and when a false positive non-crash event is not identified.