Title:
N-VEHICLE NAVIGATION DEVICE
Document Type and Number:
Japanese Patent JP3868058
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To compute a position of its own vehicle with high precision in the case of a curved traveling pattern.
SOLUTION: A vehicle traveling distance detected by means of a traveling distance detecting means 1 and a vehicle advancing azimuth detected by means of an advance azimuth detecting means 2 are obtained at every fixed time, and a micro vector is computed in a micro vector computing means 3. Some of the micro vectors are composed together so as to be generated as a map matching vector by means of a map matching vector generating means 4, and on the basis of the map matching vector, map matching is carried out by means of a map matching means 5 while using map data and the like. In this constitution, each of finely divided sections is approximated by a straight line even in a curved traveling locus, so that position detection precision for map matching can be improved.
Inventors:
Hiroyuki Maeda
Application Number:
JP14221797A
Publication Date:
January 17, 2007
Filing Date:
May 30, 1997
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G01C21/00; G09B29/10; G01C22/00; G08G1/0969; (IPC1-7): G01C21/00; G01C22/00; G08G1/0969; G09B29/10
Domestic Patent References:
| JP6288780A | ||||
| JP63295912A | ||||
| JP2038918A | ||||
| JP3096894A | ||||
| JP5061410A | ||||
| JP6102052A | ||||
| JP6194184A |
Attorney, Agent or Firm:
Mitsutake Murayama