Road Hazard Detection and Warning System and Method

• US 20120229302A1
• Filed: 03/07/2011
• Published: 09/13/2012
• Est. Priority Date: 03/07/2011
• Status: Active Grant

• Current Assignee: Slingshot IOT LLC
• Original Assignee: International Business Machines Corporation
• Inventors: Sri-Jayantha, Sri M.
• Granted Patent: US 8,766,817 B2
• Time in Patent Office: Days
• US Class Current: 340/905
• 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 1/164 Centralised systems, e.g. external to vehicles

Abstract

Exemplary embodiments of this invention encompass a method that includes receiving information packets transmitted from a plurality of vehicles, each information packet including at least a location of a vehicle that transmits the information packet; analyzing the plurality of information packets to infer a presence of a transportation hazard at a particular location and a type of transportation hazard as being one of a static or a dynamic transportation hazard; and transmitting warning information descriptive of the particular location and the type of transportation hazard for reception at least by vehicles likely to encounter the transportation hazard. In another aspect the exemplary embodiments encompass a method that includes manually activating a transducer in a vehicle in response to observing an actual or a potential transportation hazard and, in response to the manual activation, wirelessly transmitting from the vehicle at least one information packet that includes at least a current location of the vehicle when the information packet is transmitted.

Claims

1. A method, comprising:

receiving information packets transmitted from a plurality of vehicles, each information packet comprising at least a location of a vehicle that transmits the information packet;

analyzing the plurality of information packets to infer a presence of a transportation hazard at a particular location and a type of transportation hazard as being one of a static or a dynamic transportation hazard; and

transmitting information descriptive of the particular location and the type of transportation hazard for reception at least by vehicles likely to encounter the transportation hazard.

2. The method of claim 1, where a received information packet further comprises a velocity of the vehicle that transmits the information packet.

3. The method of claim 1, where each vehicle transmits at least two information packets, and further comprising determining a velocity of the vehicle based on the two received information packets.

4. The method of claim 1, where an information packet is received in response to a manual activation of an in-vehicle transducer.

5. The method of claim 1, where for a dynamic transportation hazard transmitting the information also transmits a predicted location of the dynamic location hazard at a future time.

6. The method of claim 1, where for a dynamic transportation hazard the method further determines a type of dynamic transportation hazard.

7. The method of claim 1, where the information packets are received over a wireless connection to the plurality of vehicles, and where the information is transmitted over a wireless connection for reception at least by the vehicles likely to encounter the transportation hazard.

8. The method of claim 1, where analyzing to infer the dynamic type of transportation hazard considers locations of vehicles transmitting information packets and times of arrival of the information packets, and discriminates (a) a transportation hazard moving with a velocity that differs from the velocities of the vehicles transmitting information packets from (b) a transportation hazard moving with a velocity that is about the same as the velocities of the vehicles transmitting information packets.

9. The method of claim 1, further comprising sending the information descriptive of the particular location and the type of transportation hazard for reception by at least one consumer of the information other than a vehicle.

10. A computer-readable medium that contains software program instructions, where execution of the software program instructions by at least one data processor results in performance of operations that comprise execution of the method of claim 1.

11. A method comprising:

manually activating a transducer in a vehicle in response to observing an actual or a potential transportation hazard; and

in response to the manual activation, wirelessly transmitting from the vehicle at least one information packet comprising at least a current location of the vehicle when the information packet is transmitted.

12. The method of claim 11, where at least one information packet is transmitted that also includes the velocity of the vehicle.

13. The method of claim 11, where at least one information packet is transmitted that also includes an identification of at least one of the vehicle or a person traveling in the vehicle.

14. A computer-readable medium that contains software program instructions, where execution of the software program instructions by at least one data processor results in performance of operations that comprise execution of the method of claim 11.

15. A system comprising at least one data processor operating in accordance with a computer program, where execution of the computer program results in performing operations that comprise receiving information packets transmitted from a plurality of vehicles, each information packet comprising at least a location of a vehicle that transmits the information packet;

analyzing the plurality of information packets to infer a presence of a transportation hazard at a particular location and a type of transportation hazard as being one of a static or a dynamic transportation hazard; and

transmitting information descriptive of the particular location and the type of transportation hazard for reception at least by vehicles likely to encounter the transportation hazard.

16. The system of claim 15, where a received information packet further comprises a velocity of the vehicle that transmits the information packet.

17. The system of claim 15, where each vehicle transmits at least two information packets, and further comprising determining a velocity of the vehicle based on the two received information packets.

18. The system of claim 15, where an information packet is received in response to a manual activation of an in-vehicle transducer.

19. The system of claim 15, where for a dynamic transportation hazard transmitting the information also transmits a predicted location of the dynamic location hazard at a future time.

20. The system of claim 15, where for a dynamic transportation hazard said processor, when analyzing to infer the dynamic type of transportation hazard, considers locations of vehicles transmitting information packets and times of arrival of the information packets, and discriminates (a) a transportation hazard moving with a velocity that differs from the velocities of the vehicles transmitting information packets from (b) a transportation hazard moving with a velocity that is about the same as the velocities of the vehicles transmitting information packets.

21. The system of claim 15, where the information packets are received via a wireless receiver from the plurality of vehicles, and where the information is transmitted via a wireless transmitter for reception at least by the vehicles likely to encounter the transportation hazard.

22. The system of claim 15, where said processor is further configured to send information descriptive of the particular location and the type of transportation hazard to at least one consumer of the information other than a vehicle.

23. A system comprising at least one data processor operating in accordance with a computer program, the system further comprising a manually activated in-vehicle transducer, where execution of the computer program results in performing operations that comprise, in response to an activation of the transducer by an occupant of the vehicle, wirelessly transmitting from the vehicle at least one information packet comprising at least a current location of the vehicle when the information packet is transmitted.

24. The system of claim 23, where at least one information packet is transmitted that also includes the velocity of the vehicle.

25. The system of claim 23, where at least one information packet is transmitted that also includes an identification of at least one of the vehicle or a person traveling in the vehicle.