IP Library › Granted Patent US 8,548,734
Granted Patent B2
US 8,548,734 · App. 11/855,694 · Granted Oct 1, 2013

System and method for real-time travel path prediction and automatic incident alerts

Inventors: Sean J. Barbeau (Tampa, FL); Philip L. Winters (Tampa, FL); Rafael Perez (Temple Terrace, FL); Miguel Labrador (Tampa, FL); Nevine Georggi (Valrico, FL)
Assignee: University of South Florida
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Quick Facts
Patent No.
US 8,548,734
App. No.
11/855,694
Granted
Oct 1, 2013
Kind
B2
Abstract

A path prediction method that uses a commuter's travel patterns to predict their route and destination, and transmit road advisories via a GPS-enabled device. Once the user's location data is transmitted via a GPS-enabled device it is then catalogued and stored in a GIS database. The user's current travel path is then compared to their path history and statistics and a destination is determined based on related spatial and time properties. A warning is then automatically delivered to the user if there is an accident along their predicted path, without requiring any request or input form the user.

Claims (78)

1. A method of notifying a user of an obstacle in a predicted path of travel, the method comprising:

receiving real-time location data for a user from a user's mobile device, the real-time location data comprising a plurality of coordinates representative of a current path of travel by the user;

receiving a plurality of trip-polylines associated with the user, wherein each of the plurality of trip-polylines represents a previous path of travel by the user;

comparing the real-time location data to the plurality of trip-polylines to identify a trip-polyline that corresponds with the real-time location data of the user;

responsive to a trip-polyline being identified that corresponds with the real-time location data of the user, determining the identified trip-polyline to be a predicted path of the user; and

receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user;

responsive to a trip-polyline not being identified that corresponds with the real-time location data of the user:

reducing the real-time location data by removing an oldest coordinate of the plurality of coordinates from the real-time location data of the user; and

if the reduced real-time location data comprises more than one coordinate;

comparing the reduced real-time location data to the plurality of trip-polylines to identify a trip-polyline that corresponds with the reduced real-time location data of the user

responsive to a trip-polyline being identified that corresponds with the reduced real-time location data of the user, determining the identified trip-polyline to be a predicted path of the user; and

 receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

 determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

 transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user;

responsive to a trip-polyline not being identified that corresponds with the reduced real-time location data of the user:

 further reducing the real-time location data by removing a next oldest coordinate of the plurality of coordinates from the real-time location data of the user and if the further reduced real-time location data comprises more than one coordinate repeating the step of comparing the reduced real-time location data of the user to the plurality of trip-polylines;

or, if the reduced real-time location data comprises a single coordinate;

determining a direction of travel of the user;

identifying an offset coordinate at a predetermined distance from the single coordinate in the direction of travel of the user;

radially buffering the offset coordinate at a predetermined radius to create a radial beacon;

comparing the radial beacon to the plurality of trip-polylines to identify a trip-polyline that corresponds with the radial beacon;

 responsive to a trip-polyline being identified that corresponds with the radial beacon, determining the identified trip-polyline to be a predicted path of the user; and

 receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

 determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

 transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user.

2. The method of claim 1 wherein the obstacle is selected from the group consisting of delay points, delay polylines and delay polygons.

3. The method of claim 1 , wherein the real-time location data is represented by a real-time polyline constructed using the plurality of coordinates in the real-time location data.

4. The method of claim 1 , further comprising:

responsive to identifying a plurality of trip-polylines that correspond with the real-time location data of user;

determining the predicted path of the user to be the best matching trip-polyline of the plurality of trip-polylines that correspond with the real-time location data of the user.

5. The method of claim 1 , further comprising:

responsive to identifying a plurality of trip-polylines that correspond with the reduced real-time location data of user;

determining the predicted path of the user to be the best matching trip-polyline of the plurality of trip-polylines that correspond with the reduced real-time location data of the user.

6. The method of claim 1 , further comprising:

transmitting an alternate route to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user.

7. The method of claim 1 , further comprising buffering each of the plurality of trip-polylines by a predetermined radius.

8. A method of notifying a user of an obstacle in a predicted path of travel, the method comprising:

receiving real-time location data for a user from a user's mobile device, the real-time location data comprising a plurality of coordinates representative of a current path of travel by the user;

receiving a plurality of trip-polylines associated with the user, wherein each of the plurality of trip-polylines represents a previous path of travel by the user;

comparing the real-time location data to the plurality of trip-polylines to identify a trip-polyline that corresponds with the real-time location data of the user;

responsive to a trip-polyline not being identified that corresponds with the real-time location data of the user:

reducing the real-time location data by removing an oldest coordinate of the plurality of coordinates from the real-time location data of the user; and

if the reduced real-time location data comprises more than one coordinate;

comparing the reduced real-time location data to the plurality of trip-polylines to identify a trip-polyline that corresponds with the reduced real-time location data of the user;

responsive to a trip-polyline being identified that corresponds with the reduced real-time location data of the user, determining the identified trip-polyline to be a predicted path of the user; and

 receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

 determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

 transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user;

responsive to a trip-polyline not being identified that corresponds with the reduced real-time location data of the user:

 further reducing the real-time location data by removing a next oldest coordinate of the plurality of coordinates from the real-time location data of the user and if the further reduced real-time location data comprises more than one coordinate repeating the step of comparing the reduced real-time location data of the user to the plurality of trip-polylines;

or, if the reduced real-time location data comprises a single coordinate;

determining a direction of travel of the user;

identifying an offset coordinate at a predetermined distance from the single coordinate in the direction of travel of the user;

radially buffering the offset coordinate at a predetermined radius to create a radial beacon;

comparing the radial beacon to the plurality of trip-polylines to identify a trip-polyline that corresponds with the radial beacon;

 responsive to a trip-polyline being identified that corresponds with the radial beacon, determining the identified trip-polyline to be a predicted path of the user; and

 receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

 determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

 transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user.

9. The method of claim 8 , further comprising:

responsive to a trip-polyline being identified that corresponds with the real-time location data of the user, determining the identified trip-polyline to be a predicted path of the user; and

receiving an obstacle profile comprising coordinates related to at least one real-time obstacle;

determining if the at least one real-time obstacle is within the predicted path of the user by comparing the predicted path of the user to the coordinates of the at least one real-time obstacle; and

transmitting a notification to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user.

10. The method of claim 8 , wherein the obstacle is selected from the group consisting of delay points, delay polylines and delay polygons.

11. The method of claim 8 , wherein the real-time location data is represented by a real-time polyline constructed using the plurality of coordinates in the real-time location data.

12. The method of claim 9 , further comprising:

responsive to identifying a plurality of trip-polylines that correspond with the real-time location data of user;

determining the predicted path of the user to be the best matching trip-polyline of the plurality of trip-polylines that correspond with the real-time location data of the user.

13. The method of claim 8 , further comprising:

responsive to identifying a plurality of trip-polylines that correspond with the reduced real-time location data of user;

determining the predicted path of the user to be the best matching trip-polyline of the plurality of trip-polylines that correspond with the reduced real-time location data of the user.

14. The method of claim 8 , further comprising:

transmitting an alternate route to the user's mobile device if the at least one real-time obstacle is within the predicted path of the user.

15. The method of claim 8 , further comprising:

buffering each of the plurality of trip-polylines by a predetermined radius.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2009
From: BARBEAU, SEAN J.; WINTERS, PHILIP L.; PEREZ, RAFAEL; LABRADOR, MIGUEL; GEORGGI, NEVINE
To: UNIVERSITY OF SOUTH FLORIDA
Reel/Frame 022166/0164 →
Continuity (2)
Provisional Application 60825605 · Sep 14, 2006
Related Publication 20100070171A1 · Mar 18, 2010