Vehicle alert system using mobile location information

• US 10,353,078 B2
• Filed: 03/17/2017
• Issued: 07/16/2019
• Est. Priority Date: 03/17/2017
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Meredith, Sheldon, Hilliard, Brandon, Tipton, Rick
• Primary Examiner(s): Flores, Leon
• Application Number:
  US15/462,555
• Publication Number:
  US 20180268691A1
• Time in Patent Office: 851 Days
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
• CPC Class Codes: G08G 1/0112 from the vehicle, e.g. floating car data [FCD]
• CPC Class Codes: G08G 1/0133 for classifying traffic situation
• CPC Class Codes: G08G 1/0141 for traffic information dissemination
• CPC Class Codes: G08G 1/052 with provision for determining speed or overspeed speed measuring in general G01P
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station

Abstract

A method includes receiving location data related to devices transmitted during a first interval. The location data includes at least two GPS points of a first device and a single GPS point of a second device. The method includes identifying a subset of the devices that are within a vicinity of an area associated with a traffic event based on the data. The method includes determining that the first device will not approach the area during a second interval based on the two GPS points and determining that the second device will not approach the geographic area during the second interval based at least on the single GPS data point and a second location datum. The method includes filtering the first and second devices from the subset and transmitting an alert indicative of the traffic event to the subset.

Claims

1. A method comprising:

receiving, at a network device of a network, location data transmitted during a first time interval, the location data being related to a plurality of devices, wherein the location data includes at least two global positioning system (GPS) data points of a first device, a single GPS data point of a second device, and information related to a velocity of a third device;

identifying, based at least on the location data, a subset of the plurality of devices that are within a vicinity of a geographic area associated with a traffic event, the subset comprising the first device, the second device, the third device, and a fourth device;

determining that the first device will not approach the geographic area during a second time interval based at least on the at least two GPS data points;

determining that the second device will not approach the geographic area during the second time interval based at least on the single GPS data point and a second location datum;

based at least on the information related to the velocity of the third device indicating that the velocity of the third device does not exceed a threshold, filtering, by the network device, the third device from the subset;

based on the determining that the first device will not approach the geographic area during the second time interval and based on the determining that the second device will not approach the geographic area during the second time interval, filtering, by the network device, the first device and the second device from the subset; and

transmitting, via the network, an alert indicative of the traffic event to the subset.

2. The method of claim 1, wherein each datum of the location data is associated with at least one time within the first time interval.

3. The method of claim 1, wherein the second location datum comprises a second GPS data point of the second device, the second GPS data point transmitted prior to the first time interval.

4. The method of claim 1, wherein the at least two GPS data points are timestamped within the first time interval.

5. The method of claim 1, wherein the single GPS data point is timestamped within the first time interval.

6. The method of claim 1, wherein the location data of the second device comprises the second location datum, and wherein a type of the second location datum is non-GPS data.

7. The method of claim 1, wherein the second location datum comprises a cell identifier, a Wi-Fi location, an access point detected by the second device, an access point handoff, or a Rayleigh fading rate.

8. The method of claim 1, wherein the subset further comprises a fifth device, the method further comprising:

comparing the traffic event to a historical traffic pattern for the geographic area;

based on the comparing, determining that the traffic event is chronic; and

prior to transmitting the alert, filtering the subset to exclude the fourth device based on the fourth device having previously traversed the geographic area.

9. The method of claim 1, further comprising:

receiving, via the network, sensor data from a plurality of sources;

deriving, based on the sensor data, an acceleration pattern for the geographic area; and

identifying the traffic event based at least on the acceleration pattern.

10. A system comprising:

an input/output;

a processor communicatively coupled to the input/output; and

memory storing instructions that cause the processor to effectuate operations, the operations comprising;

receiving, via the input/output, location data transmitted during a first time interval, the location data being related to a plurality of devices, wherein the location data includes at least two global positioning system (GPS) data points of a first device, a single GPS data point of a second device, and information related to a velocity of a third device;

identifying, based at least on the location data, a subset of the plurality of devices that are within a vicinity of a geographic area associated with a traffic event, the subset comprising the first device, the second device, the third device, and a fourth device;

determining that the first device will not approach the geographic area during a second time interval based at least on the at least two GPS data points;

determining that the second device will not approach the geographic area during the second time interval based at least on the single GPS data point and a second location datum;

subset based at least on the information related to the velocity of the third device indicating that the velocity of the third device does not exceed a threshold, filtering the third device from the;

based on the determining that the first device will not approach the geographic area during the second time interval and based on the determining that the second device will not approach the geographic area during the second time interval, filtering the first device and the second device from the subset; and

transmitting, via the input/output, an alert indicative of the traffic event to the subset.

11. The system of claim 10, wherein the at least two GPS points of the first device comprise GPS data generated by a related device related to the first device.

12. The system of claim 10, wherein the single GPS data point of the second device comprises GPS data generated by a related device related to the second device.

13. The system of claim 10, wherein the location data related to the second device comprises the second location datum, and wherein a type of the second location datum is non-GPS data.

14. The system of claim 10, wherein the second location datum comprises a second GPS data point of the second device, wherein a timestamp of the second GPS data point of the second device is outside of the first time interval.

15. A method comprising:

receiving, at a network device of a network, location data transmitted during a first time interval, the location data being related to a plurality of devices, wherein the location data includes at least two global positioning system (GPS) data points of a first device and a single GPS data point of a second device;

identifying, based at least on the location data, a subset of the plurality of devices by filtering out a distant device that is outside of a vicinity of a geographic area associated with a traffic event, the subset comprising the first device, the second device, and a third device;

determining that the first device will not approach the geographic area during a second time interval based at least on the at least two GPS data points;

determining that the second device will not approach the geographic area during the second time interval based at least on the single GPS data point and a second location datum;

based on the determining that the first device will not approach the geographic area during the second time interval and based on the determining that the second device will not approach the geographic area during the second time interval, filtering, by the network device, the first device and the second device from the subset; and

transmitting, via the network, an alert indicative of the traffic event to the subset.

16. The method of claim 15, wherein the second location datum comprises a cell identifier, a Wi-Fi location, an access point detected by the second device, an access point handoff, or a Rayleigh fading rate.

17. The method of claim 15, wherein the subset comprises a fourth device, and the location data of the third device comprises no GPS data points, the method further comprising:

estimating a movement of the third device based on the location data of the third device, the movement indicating that the third device is moving towards the geographic area;

determining a density of the geographic area; and

filtering the third device from the subset based on the density.

18. The method of claim 17, further comprising:

determining an accuracy of the estimated movement,

wherein filtering the third device from the subset is further based on the accuracy.

19. The method of claim 15, wherein the location data related to the first device comprises location data of a related device associated with the first device.

20. The method of claim 15, wherein the location data related to the second device comprises location data of a related device associated with the second device.