Navigation roadway and navigation system
First Claim
1. A navigation system for guiding a vehicle on a roadway comprising:
- a mark-tracking navigator for navigating the vehicle along a navigation-guiding mark by detecting said navigation-guiding mark, which is provided on the roadway;
a map-referring navigator with data of a route map, including position-detecting means for detecting a position of the vehicle independently of said navigation-guiding mark, said map-referring navigator navigating said vehicle along a predetermined track in said data of the route map by referring to the position of said vehicle which is detected by said position-detecting means; and
selection-controlling means for selecting either said mark-tracking navigator or said map-referring navigator to navigate the vehicle in correspondence with a condition of the roadway.
1 Assignment
0 Petitions
Accused Products
Abstract
A navigation system including a navigation roadway, which is simple in construction and thus cost-effective, ensures a vehicle to navigate even where a roadway curves, branches out, or merges with another. This navigation system comprises a mark-tracking navigator and a map-referring navigator. The mark-tracking navigator navigates the vehicle along a navigation-guiding mark on the roadway by detecting the navigation-guiding mark, and the map-referring navigator navigates the vehicle along a predetermined track on a route map of data by referring to the position of the vehicle which is detected by position-detecting means. The system selects either the mark-tracking navigator or the map-referring navigator to navigate the vehicle in correspondence with the condition of the roadway. The sections where the roadway extends straight or curves gradually are provided with the navigation-guiding mark, and the sections where the roadway branches out or merges with another or curves sharply are not provided with the navigation-guiding mark.
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Citations
14 Claims
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1. A navigation system for guiding a vehicle on a roadway comprising:
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a mark-tracking navigator for navigating the vehicle along a navigation-guiding mark by detecting said navigation-guiding mark, which is provided on the roadway; a map-referring navigator with data of a route map, including position-detecting means for detecting a position of the vehicle independently of said navigation-guiding mark, said map-referring navigator navigating said vehicle along a predetermined track in said data of the route map by referring to the position of said vehicle which is detected by said position-detecting means; and selection-controlling means for selecting either said mark-tracking navigator or said map-referring navigator to navigate the vehicle in correspondence with a condition of the roadway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A navigation system for guiding a vehicle on a roadway with navigation-guiding marks comprising:
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said navigation-guiding marks not being provided for sections where the roadway branches out or merges with another navigation roadway or curves sharply; said navigation-guiding marks provided on the roadway only for sections where the roadway extends straight or curves gently; a mark-tracking navigator for navigating a vehicle along said navigation-guiding marks on the roadway by detecting said navigation-guiding marks; a map-referring navigator with data of a route map of the roadway, said map-referring navigator including a global positioning system for detecting a current position of the vehicle, said map-referring navigator navigating said vehicle along a predetermined track in said data of said route map at least along the roadway sections without navigation-guiding marks by referring to the current position of said vehicle which is detected by said position-detecting means; and selection-controlling means for selecting either said mark-tracking navigator or said map-referring navigator to navigate the vehicle in correspondence with a condition of said roadway. - View Dependent Claims (11, 12, 13, 14)
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Specification