Method of recognizing intersecting point in navigation system
First Claim
1. A method of recognizing an intersecting point in a navigation system, the method comprising:
- a first step of extracting road type information from a road DB if it is determined as an intersecting point in a map DB;
a second step of extracting road width information and traffic lane information depending on the extracted road type from the road DB;
a third step of extracting GPS error information and map error information from a memory; and
a fourth step of calculating the size of the intersecting point based on the extracted GPS error information, map error information, road width information and traffic lane information and recognizing the intersecting point.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of recognizing a intersecting point in a navigation system includes a first step of extracting road type information from a road DB if it is determined as a intersecting point in a map DB, a second step of extracting road width information and traffic lane information depending on the extracted road type from the road DB, a third step of extracting GPS error information and map error information from a memory, and a fourth step of calculating the size of the intersecting point based on the extracted GPS error information, map error information, road width information and traffic lane information and recognizing a intersecting point. Therefore, an intersecting point can be recognized as a section, but not a point. Accordingly, there is an advantage in that smooth rotation can be induced at an intersecting point when a vehicle is navigated. Furthermore, when section traffic information is collected employing navigation using GPS, there is an advantage that a transit time between intersecting points can be calculated.
-
Citations
5 Claims
-
1. A method of recognizing an intersecting point in a navigation system, the method comprising:
-
a first step of extracting road type information from a road DB if it is determined as an intersecting point in a map DB; a second step of extracting road width information and traffic lane information depending on the extracted road type from the road DB; a third step of extracting GPS error information and map error information from a memory; and a fourth step of calculating the size of the intersecting point based on the extracted GPS error information, map error information, road width information and traffic lane information and recognizing the intersecting point. - View Dependent Claims (2, 3, 4, 5)
-
Specification