TRAFFIC INFORMATION GENERATING METHOD, TRAFFIC INFORMATION GENERATING APPARATUS, DISPLAY, NAVIGATION SYSTEM, AND ELECTRONIC CONTROL UNIT
First Claim
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1. A traffic information generating method for generating traffic information about a road on which a vehicle travels, the method comprising:
- a vehicle speed detecting step of detecting a vehicle speed of the vehicle at predetermined distance or time intervals using a vehicle speed sensor; and
a congestion degree detecting step of a congestion degree detection unit detecting a congestion degree associated with the vehicle speed by referring to a prescribed speed, a prescribed distance in association with the congestion degree, and a link determination distance prescribed in accordance with a road type.
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Abstract
An embodiment provides a traffic information generating method for generating traffic information about a road on which a vehicle travels. A vehicle speed is detected by a vehicle speed sensor at predetermined distance or time intervals. By referring to a prescribed speed, a prescribed distance, and a link determination distance, a congestion degree associated with the vehicle speed is detected.
18 Citations
20 Claims
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1. A traffic information generating method for generating traffic information about a road on which a vehicle travels, the method comprising:
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a vehicle speed detecting step of detecting a vehicle speed of the vehicle at predetermined distance or time intervals using a vehicle speed sensor; and a congestion degree detecting step of a congestion degree detection unit detecting a congestion degree associated with the vehicle speed by referring to a prescribed speed, a prescribed distance in association with the congestion degree, and a link determination distance prescribed in accordance with a road type. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 20)
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16. A traffic information generating apparatus for generating traffic information about a road on which a vehicle travels, the apparatus comprising:
a congestion degree detection unit configured to detect a congestion degree in accordance with a vehicle speed that is detected by an on-board vehicle speed sensor at predetermined distance or time intervals, by referring to a prescribed speed and a prescribed distance that are prescribed in association with the congestion degree, and a link determination distance prescribed in accordance with a road type.
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19. An electronic control unit for generating traffic information about a road on which a vehicle travels, comprising:
a congestion degree detection unit configured to detect a congestion degree in accordance with a vehicle speed detected by a vehicle speed sensor at predetermined distance or time intervals, by referring to a prescribed speed and a prescribed distance that are prescribed in association with the congestion degree, and a link determination distance prescribed in association with a road type.
Specification