Systems and methods for detecting and assessing distracted drivers
First Claim
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1. A system comprising:
- a mobile device comprising a plurality of sensors;
a memory; and
a processor coupled to the memory, wherein the processor is configured to perform operations including;
obtaining a plurality of movement measurements over a plurality of time intervals from at least one of the plurality of sensors in the mobile device of a user during a trip in a vehicle;
classifying a subset of the plurality of movement measurements as mobile device usage movements based on characteristics of the subset, wherein the mobile device usage movements are movements obtained from the at least one of the plurality of sensors, and wherein the mobile device usage movements are indicative of usage of the mobile device by the user based on the movements;
filtering the mobile device usage movements; and
outputting the filtered mobile device usage movements,wherein the classifying the subset of the plurality of movement measurements as the mobile device usage movements comprises;
determining a time series of usage probabilities over the time intervals based on a comparison of the obtained plurality of movement measurements to known usage measurements, wherein the usage probabilities include probabilities that the user is using the mobile device over the time intervals, andwherein the filtering the mobile device usage movements comprises;
determining that the mobile device is not in a mount in the vehicle during the trip by comparing the obtained plurality of movement measurements to known mount measurements;
determining if the mobile device is in a downward orientation or an upward orientation for the time intervals using the obtained plurality of movement measurements;
flagging the time intervals with the usage probabilities greater than a first threshold if the mobile device is in the downward orientation and the time intervals with the usage probabilities greater than a second threshold if the mobile device is in the upward orientation, wherein the first threshold is greater than the second threshold; and
consolidating the flagged time intervals within a threshold time period into continuous periods of the usage.
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Abstract
Embodiments of the present invention meet this need and others by providing systems and methods for detecting and assessing distracted drivers. Embodiments collect vehicle and driving data using a mobile device of a user. In a particular embodiment, data collected using the mobile device is analyzed to determine when the user is engaging in distracted driving behavior.
32 Citations
20 Claims
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1. A system comprising:
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a mobile device comprising a plurality of sensors; a memory; and a processor coupled to the memory, wherein the processor is configured to perform operations including; obtaining a plurality of movement measurements over a plurality of time intervals from at least one of the plurality of sensors in the mobile device of a user during a trip in a vehicle; classifying a subset of the plurality of movement measurements as mobile device usage movements based on characteristics of the subset, wherein the mobile device usage movements are movements obtained from the at least one of the plurality of sensors, and wherein the mobile device usage movements are indicative of usage of the mobile device by the user based on the movements; filtering the mobile device usage movements; and outputting the filtered mobile device usage movements, wherein the classifying the subset of the plurality of movement measurements as the mobile device usage movements comprises; determining a time series of usage probabilities over the time intervals based on a comparison of the obtained plurality of movement measurements to known usage measurements, wherein the usage probabilities include probabilities that the user is using the mobile device over the time intervals, and wherein the filtering the mobile device usage movements comprises; determining that the mobile device is not in a mount in the vehicle during the trip by comparing the obtained plurality of movement measurements to known mount measurements; determining if the mobile device is in a downward orientation or an upward orientation for the time intervals using the obtained plurality of movement measurements; flagging the time intervals with the usage probabilities greater than a first threshold if the mobile device is in the downward orientation and the time intervals with the usage probabilities greater than a second threshold if the mobile device is in the upward orientation, wherein the first threshold is greater than the second threshold; and consolidating the flagged time intervals within a threshold time period into continuous periods of the usage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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obtaining a plurality of movement measurements over a plurality of time intervals from at least one of a plurality of sensors in a mobile device of a user during a trip in a vehicle; classifying a subset of the plurality of movement measurements as mobile device usage movements based on characteristics of the subset, wherein the mobile device usage movements are movements obtained from the at least one of the plurality of sensors, and wherein the mobile device usage movements are indicative of usage of the mobile device by the user based on the movements; filtering the mobile device usage movements; and outputting the filtered mobile device usage movements, wherein the classifying the subset of the plurality of movement measurements as the mobile device usage movements comprises; determining a time series of usage probabilities over the time intervals based on a comparison of the obtained plurality of movement measurements to known usage measurements, wherein the usage probabilities include probabilities that the user is using the mobile device over the time intervals, and wherein the filtering the mobile device usage movements comprises; determining that the mobile device is not in a mount in the vehicle during the trip by comparing the obtained plurality of movement measurements to known mount measurements; determining if the mobile device is in a downward orientation or an upward orientation for the time intervals using the obtained plurality of movement measurements; flagging the time intervals with the usage probabilities greater than a first threshold if the mobile device is in the downward orientation and the time intervals with usage probabilities greater than a second threshold if the mobile device is in the upward orientation, wherein the first threshold is greater than the second threshold; and consolidating the flagged time intervals within a threshold time period into continuous periods of the usage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification