SYSTEMS AND METHODS FOR SCORING DRIVING TRIPS

• US 20170349182A1
• Filed: 06/06/2017
• Published: 12/07/2017
• Est. Priority Date: 06/06/2016
• Status: Active Grant

• Current Assignee: Cambridge Mobile Telematics, Inc.
• Original Assignee: Truemotion, Inc.
• Inventors: Cordova, Brad, Finegold, Rafi, Shiebler, Dan, Cecala, Sam
• Granted Patent: US 11,072,339 B2
• Time in Patent Office: Days
• CPC Class Codes: B60W 2540/043 Identity of occupants
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2556/55 using telemetry
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/0858 wherein the data carrier is removable
• CPC Class Codes: G09B 19/167 Control of land vehicles
• CPC Class Codes: H04W 4/027 using movement velocity, acceleration information

Abstract

Embodiments of the present invention utilize mobile devices to provide information on a user'"'"'s behaviors during transportation. For example, a mobile device carried by a user can be used to detect and analyze driving behaviors during trips in vehicles. The mobile device can further be used to assign and display scores relating to the driving behaviors, scores for individual trips, and an overall driving score for the particular user.

Claims

1. A method comprising:

obtaining sensor measurements at a measurement rate from one or more sensors of a mobile device in a vehicle during a trip;

identifying a user of the mobile device in the vehicle as a driver of the vehicle during the trip;

monitoring at least one behavior associated with the mobile device during the trip in the vehicle using the sensor measurements, the at least one behavior comprising at least one of a braking behavior, an acceleration behavior, a mobile device usage behavior, and a speeding behavior;

computing at least one of;

a braking score using the braking behavior, an acceleration score using the acceleration behavior, a mobile device usage score using the mobile device usage behavior, and a speeding score using the speeding behavior;

aggregating the at least one of the braking score, the acceleration score, the mobile device usage score, and the speeding score to determine a trip score for the trip in the vehicle; and

updating the measurement rate for the sensor measurements from the one or more sensors of the mobile device for a subsequent trip in the vehicle based on the trip score.

2. The method of claim 1, further comprising:

combining the trip score for the trip in the vehicle with other trip scores associated with other trips in which the user of the device is the driver of the vehicle to determine an overall score for the user of the device.

3. The method of claim 2, wherein if a trip distance associated with the trip in the vehicle is above a threshold distance, scaling the plurality of behaviors down to the threshold distance.

4. The method of claim 2, wherein an overall distance associated with the trip and the other trips is at or below a threshold overall distance.

5. The method of claim 1, wherein aggregating the braking score, the acceleration score, the mobile device usage score, and the speeding score comprises

weighting the braking score, the acceleration score, the mobile device usage score, and the speeding score;

and

combining the weighted braking score, the weighted acceleration score, the weighted mobile device usage score, and the weighted speeding score.

6. The method of claim 1, further comprising:

comparing the trip score for the trip in the vehicle with other trip scores associated with other trips in which other users of other mobile devices are driving other vehicles; and

curving the trip scores and the other trip scores to be centered at a selected score.

7. The method of claim 1, wherein computing the braking score using the braking behavior comprises:

comparing the braking behavior during the trip in the vehicle to other braking behaviors during other trips by other users in other vehicles.

8. The method of claim 7, wherein comparing the braking behavior to other braking behaviors comprises:

counting a number of hard braking events during the trip in the vehicle, wherein hard braking events are indicated by a deceleration measured by the one or more sensors of the mobile device being greater in magnitude than a threshold deceleration; and

comparing the number of hard braking events during the trip in the vehicle to other numbers of hard braking events during other trips by other users in other vehicles.

9. The method of claim 1, wherein computing the acceleration score using the acceleration behavior comprises:

comparing the acceleration behavior during the trip in the vehicle to other acceleration behaviors during other trips by other users in other vehicles.

10. The method of claim 9, wherein comparing the acceleration behavior to other acceleration behaviors comprises:

counting a number of rapid acceleration events during the trip in the vehicle, wherein rapid acceleration events are indicated by an acceleration of the mobile device measured by the one or more sensors of the mobile device being greater in magnitude than a threshold acceleration; and

comparing the number of rapid acceleration events during the trip in the vehicle to other numbers of rapid acceleration events during other trips by other users in other vehicles.

11. The method of claim 1, wherein computing the mobile device usage score using the mobile device usage behavior comprises:

comparing the mobile device usage behavior during the trip in the vehicle to other mobile device usage behaviors during other trips by other users in other vehicles.

12. The method of claim 11, wherein comparing the mobile device usage behavior to other mobile device usage comprises:

determining a mobile device usage percentage indicated by a percentage of the trip in the vehicle during which the user is interacting with the mobile device; and

comparing the mobile device usage percentage to other mobile device usage percentages for other trips by other users in other vehicles.

13. The method of claim 1, wherein computing the speeding score using the speeding behavior comprises:

comparing the speeding behavior during the trip in the vehicle to other speeding behaviors during other trips by other users in other vehicles.

14. The method of claim 13, wherein comparing the speeding behavior to other speeding behaviors comprises:

determining a speeding percentage indicated by a percentage of the trip in the vehicle during which the vehicle is speeding; and

comparing the speeding percentage to other speeding percentages for other trips by other users in other vehicles.

15. A device comprising:

a memory; and

a processor coupled to the memory, wherein the processor is configured to perform operations including;

obtaining sensor measurements at a measurement rate from one or more sensors of a mobile device in a vehicle during a trip;

identifying a user of the mobile device in the vehicle as a driver of the vehicle during the trip;

monitoring at least one behavior associated with the mobile device during the trip in the vehicle using the sensor measurements, the at least one behavior comprising at least one of a braking behavior, an acceleration behavior, a mobile device usage behavior, and a speeding behavior;

computing at least one of;

a braking score using the braking behavior, an acceleration score using the acceleration behavior, a mobile device usage score using the mobile device usage behavior, and a speeding score using the speeding behavior;

aggregating the at least one of the braking score, the acceleration score, the mobile device usage score, and the speeding score to determine a trip score for the trip in the vehicle; and

updating the measurement rate for the sensor measurements from the one or more sensors of the mobile device for a subsequent trip in the vehicle based on the trip score.

16. The device of claim 15, wherein the operations further include:

combining the trip score for the trip in the vehicle with other trip scores associated with other trips in which the user of the device is the driver of the vehicle to determine an overall score for the user of the device.

17. The device of claim 16, wherein if a trip distance associated with the trip in the vehicle is above a threshold distance, scaling the plurality of behaviors down to the threshold distance.

18. The method of claim 16, wherein an overall distance associated with the trip and the other trips is at or below a threshold overall distance.

19. The device of claim 15, wherein aggregating the braking score, the acceleration score, the mobile device usage score, and the speeding score comprises

weighting the braking score, the acceleration score, the mobile device usage score, and the speeding score;

and

combining the weighted braking score, the weighted acceleration score, the weighted mobile device usage score, and the weighted speeding score.

20. The device of claim 15, wherein the operations further include:

comparing the trip score for the trip in the vehicle with other trip scores associated with other trips in which other users of other mobile devices are driving other vehicles; and

curving the trip scores and the other trip scores to be centered at a selected score.