Patent ID: 8754782
Filing Date: 2014-06-17
Classification: G01C,G08G

Abstract:
1. A vehicle wrong-way travel detection device, comprising: a subject vehicle position detection unit that detects a position of a subject vehicle; a traveling direction detection unit that detects a subject vehicle traveling direction along which the subject vehicle is traveling; a map information storage unit where map information that includes connecting point position information indicating the position of a connecting point to which a plurality of roads, including at least a unidirectional traffic road with a single direction designated for traffic flow are connected, is stored; a decision-making point setting unit that sets, based upon the map information stored in the map information storage unit, the connecting point located ahead along the subject vehicle traveling direction detected by the traveling direction detection unit as a decision-making point; a wrong-way travel decision-making area setting unit that sets wrong-way travel decision-making areas to be used to make a decision as to whether or not the subject vehicle is traveling against the traffic flow on the unidirectional traffic road, for at least one of the plurality of roads connected to the decision-making point set by the decision-making point setting unit; and a wrong-way travel decision-making unit that makes a decision, based upon the direction of traffic flow set for the unidirectional traffic road connected to the decision-making point and the subject vehicle traveling direction, as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road, wherein: the wrong-way travel decision-making areas set by the wrong-way travel decision-making area setting unit include an immediately-effective decision-making area used to make an immediate decision as to whether or not the subject vehicle is traveling against traffic flow; and when the position of the subject vehicle detected by the subject vehicle position detection unit is within a range defined by the immediately effective decision-making area, the wrong-way travel decision-making unit makes a decision as to whether or not the subject vehicle is traveling against the flow of traffic on the unidirectional traffic road.