Method for determining traffic conditions

• US 20050143903A1
• Filed: 12/22/2004
• Published: 06/30/2005
• Est. Priority Date: 12/30/2003
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Jhong, Woo Jin, Lee, Jong Soo, Park, Jin Ho, Jeong, Hee Seok
• Granted Patent: US 7,248,961 B2
• Time in Patent Office: Days
• US Class Current: 701/117
• CPC Class Codes: G08G 1/01 Detecting movement of traffic to be counted or controlled G08G1/07 - G08G1/14 take precedence
• 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 for determining traffic conditions comprises: collecting real-time traffic information of a road; calculating a representative speed value for the road by a fuzzy inference, from the collected real-time traffic information and traffic condition factors having an effect on the road; and transmitting the representative speed value to a terminal of a vehicle traveling on the road corresponding to the representative speed value. The representative speed is sensibly determined and reliable information is supplied because the fuzzy inference'"'"'s performance is based on the information collected from the signal transmitter and based on the factors which can affect the traffic conditions.

Claims

1. A method for determining traffic conditions, comprising:

collecting real-time traffic information of a road;

calculating a representative speed value for the road by a fuzzy inference, on the basis of the collected real-time traffic information and traffic condition factors having an effect on the road; and

transmitting the representative speed value to a terminal of a vehicle traveling on the road corresponding to the representative speed value.

2. The method of claim 1, wherein the real-time traffic information comprises:

information on a speed of a vehicle traveling on the roads;

information on a latitudinal and longitudinal position of the vehicle; and

information on a direction that the vehicle travels.

3. The method of claim 1, wherein the traffic condition factors include time and a day of the week.

4. A method for predicting traffic conditions, comprising:

predicting a traffic condition by a fuzzy inference from regional characteristic information and traffic condition factors having an effect on the roads, in the case that real-time traffic information of the roads is not collected; and

transmitting the predicted traffic condition to a terminal of a vehicle traveling on a road corresponding to the predicted traffic condition.

5. The method of claim 4, wherein the regional characteristic information includes a first information about neighboring buildings and a second information on the number of lanes in the road.