Course guidance system, course guidance method, and course guidance program
First Claim
1. A course guidance system, comprising:
- a controller that;
acquires vehicle location information indicating a current location of a vehicle;
acquires road information including information on a road link and information on an exit/entrance node, the road link indicating an out-of-facility road, the exit/entrance node indicating a location of an exit/entrance of a facility having an exit lane connected to the out-of-facility road at the exit/entrance node;
determines that the vehicle is exiting from the facility to the out-of-facility road;
determines an estimated connection angle of the exit lane at the exit/entrance node;
generates course guidance information based on the determined estimated connection angle when the vehicle is determined to be exiting, the course guidance information being guidance on a traveling direction to a guidance road, the guidance road forming part of a guidance route on which the vehicle will travel after exiting from the exit lane;
based on the vehicle location information and the road information, detects whether an actual traveling road and the guidance road differ, the actual traveling road being a road on which the vehicle will travel after exiting from the exit lane;
when the actual traveling road and the guidance road differ, based on the vehicle location information and the road information, corrects the estimated connection angle at the exit/entrance node based on a relative angle between the actual traveling road and the guidance road; and
records the corrected estimated connection angle.
1 Assignment
0 Petitions
Accused Products
Abstract
Course guidance systems, methods, and programs determine that a vehicle is exiting from a facility to an out-of-facility road via an exit lane, and determine an estimated connection angle of the exit lane at an exit/entrance node. The systems, methods, and programs generate course guidance information based on the determined estimated connection angle when the vehicle is determined to be exiting. Based on the vehicle location information and the road information, the systems, methods, and programs detect whether an actual traveling road and the guidance road differ. Based on the vehicle location information and the road information, the systems, methods, and programs correct the estimated connection angle at the exit/entrance node based on a relative angle between the actual traveling road and the guidance road, and record the corrected estimated connection angle.
19 Citations
17 Claims
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1. A course guidance system, comprising:
a controller that; acquires vehicle location information indicating a current location of a vehicle; acquires road information including information on a road link and information on an exit/entrance node, the road link indicating an out-of-facility road, the exit/entrance node indicating a location of an exit/entrance of a facility having an exit lane connected to the out-of-facility road at the exit/entrance node; determines that the vehicle is exiting from the facility to the out-of-facility road; determines an estimated connection angle of the exit lane at the exit/entrance node; generates course guidance information based on the determined estimated connection angle when the vehicle is determined to be exiting, the course guidance information being guidance on a traveling direction to a guidance road, the guidance road forming part of a guidance route on which the vehicle will travel after exiting from the exit lane; based on the vehicle location information and the road information, detects whether an actual traveling road and the guidance road differ, the actual traveling road being a road on which the vehicle will travel after exiting from the exit lane; when the actual traveling road and the guidance road differ, based on the vehicle location information and the road information, corrects the estimated connection angle at the exit/entrance node based on a relative angle between the actual traveling road and the guidance road; and records the corrected estimated connection angle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A course guidance method, executed on a computer comprising:
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acquiring vehicle location information indicating a current location of a vehicle; acquiring road information including information on a road link and information on an exit/entrance node, the road link indicating an out-of-facility road, the exit/entrance node indicating a location of an exit/entrance of a facility having an exit lane connected to the out-of-facility road at the exit/entrance node; determining that the vehicle is exiting from the facility to the out-of-facility road; determining an estimated connection angle of the exit lane at the exit/entrance node; generating course guidance information based on the determined estimated connection angle when the vehicle is determined to be exiting, the course guidance information being guidance on a traveling direction to a guidance road, the guidance road forming part of a guidance route on which the vehicle will travel after exiting from the exit lane; based on the vehicle location information and the road information, detecting whether an actual traveling road and the guidance road differ, the actual traveling road being a road on which the vehicle will travel after exiting from the exit lane; when the actual traveling road and the guidance road differ, based on the vehicle location information and the road information, correcting the estimated connection angle at the exit/entrance node based on a relative angle between the actual traveling road and the guidance road; and recording the corrected estimated connection angle. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer-readable storage medium storing a computer-executable course guidance program, the program comprising:
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instructions for acquiring vehicle location information indicating a current location of a vehicle; instructions for acquiring road information including information on a road link and information on an exit/entrance node, the road link indicating an out-of-facility road, the exit/entrance node indicating a location of an exit/entrance of a facility having an exit lane connected to the out-of-facility road at the exit/entrance node; instructions for determining that the vehicle is exiting from the facility to the out-of-facility road; instructions for determining an estimated connection angle of the exit lane at the exit/entrance node; instructions for generating course guidance information based on the determined estimated connection angle when the vehicle is determined to be exiting, the course guidance information being guidance on a traveling direction to a guidance road, the guidance road forming part of a guidance route on which the vehicle will travel after exiting from the exit lane; instructions for, based on the vehicle location information and the road information, detecting whether an actual traveling road and the guidance road differ, the actual traveling road being a road on which the vehicle will travel after exiting from the exit lane; instructions for, when the actual traveling road and the guidance road differ, based on the vehicle location information and the road information, correcting the estimated connection angle at the exit/entrance node based on a relative angle between the actual traveling road and the guidance road; and recording the corrected estimated connection angle. - View Dependent Claims (14, 15, 16, 17)
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Specification