US 9,867,015 B1 · Systems and methods for detecting mobile device movement within a vehicle using accelerometer data

Abstract

One or more mobile device movement detection computing devices and methods are disclosed herein based on acceleration data collected from an accelerometer of a mobile device found within an interior of a vehicle. The mobile device movement detection computing devices may identify a likely mobile device movement event based on a change of angle between two three-dimensional acceleration vectors. Where the mobile device movement detection computing devices detect a likely mobile device movement event, sensor data from various sensors of a mobile device are collected and aggregated for a window of time encompassing the mobile device movement event. Data from vehicle sensors and other external systems may also be used. The mobile device movement detection computing devices calculate a risk score based on the aggregates sensor data, and provide feedback to a mobile device or vehicle based on the calculated risk score.

Claims20

Dependent claims

A mobile device movement detection system comprising:

at least one processor;
and
memory storing computer-readable instructions, that when executed by the at least one processor, cause the system to:
obtain acceleration data from an accelerometer associated with a mobile device within a vehicle at a first time and at a second time;
obtain sensor data from sensors associated with the mobile device for a specified window of time, wherein the sensors comprise the accelerometer, a GPS receiver, and a gyroscope;
process the acceleration data to remove a gravity component of the acceleration data, and generate a processed acceleration data at the first time and at the second time;
determine that a mobile device movement event has occurred at the second time based, at least in part, on three-dimensional vectors representing the processed acceleration data at the first time and at the second time;
and
determine a risk score based, at least in part, on the sensor data for the specified window of time.

6 more elements

A computer-assisted method of detecting mobile device movement events comprising:

obtaining, by a sensor data collection device of a mobile device movement detection system, acceleration data from at least one sensor associated with a mobile device within a vehicle at a first time and at a second time;
determining, by a movement event detection device, that a mobile device movement event has occurred at the second time based, at least in part, on three-dimensional vectors representing the acceleration data at the first time and at the second time;
aggregating, by a sensor data aggregation device, the acceleration data from the at least one sensor for a window of time starting at a first predetermined duration before the second time and ending a second predetermined duration after the second time, and generating aggregated sensor data;
determining, by a risk determination device, a risk score based, at least in part, on the aggregated sensor data for the window of time;
and
notifying, by a risk feedback generation device, a user of the determined risk score through the mobile device.

3 more elements

Dependencies are inferred from the claim text.

Systems and methods for detecting mobile device movement within a vehicle using accelerometer data

Life of this patent

Systems and methods for detecting mobile device movement within a vehicle using accelerometer data

Life of this patent

Abstract

Claims20