JPH0283410U - - Google Patents
Info
- Publication number
- JPH0283410U JPH0283410U JP16227088U JP16227088U JPH0283410U JP H0283410 U JPH0283410 U JP H0283410U JP 16227088 U JP16227088 U JP 16227088U JP 16227088 U JP16227088 U JP 16227088U JP H0283410 U JPH0283410 U JP H0283410U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- road
- link
- map information
- trajectory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
Description
図面は本考案に関する車載用航法装置の一実施
例を示し、第１図は車載用航法装置の回路構成図
、第２図乃至第３図は中央処理装置による位置修
正の説明図、第４図及び第５図はそれぞれ地図情
報記録媒体に記録された道路地図データの説明図
、第６図は中央処理装置によるマツプマツチング
動作を示すフローチヤート、第７図及び第８図は
地図情報記録媒体に記録された道路地図データの
説明図、第９図は従来の車載用航法装置による動
作説明図である。
（主要部分を示す図面の符号の説明）、１……
車載用航法装置、２……中央処理装置、３……車
速度センサ、５……方位センサ、５……記憶装置
、６……デイスプレイ装置、７……地図情報記録
媒体。
The drawings show an embodiment of the on-vehicle navigation system related to the present invention, and FIG. 1 is a circuit diagram of the on-vehicle navigation system, FIGS. 2 and 3 are explanatory diagrams of position correction by the central processing unit, and FIG. and Fig. 5 are explanatory diagrams of road map data recorded on the map information recording medium, Fig. 6 is a flowchart showing the map matching operation by the central processing unit, and Figs. 7 and 8 are illustrations of the road map data recorded on the map information recording medium. FIG. 9 is an explanatory diagram of the operation of a conventional vehicle-mounted navigation system. (Explanation of symbols in drawings indicating main parts), 1...
Vehicle-mounted navigation device, 2...Central processing unit, 3...Vehicle speed sensor, 5...Direction sensor, 5...Storage device, 6...Display device, 7...Map information recording medium.
Claims (1)
し、推定現在地が地図情報の道路状況に合致しな
いときは、推定現在地を妥当な道路上に移転させ
、現実との整合を図る車載用航法装置であつて、
道路の交差点、曲がり角等の節点により道路をリ
ンク毎に細分化し、直線的に連続するリンクは起
点の節点毎に１まとめに読み出し可能に記録され
た地図情報記録媒体と、車両が走行してきた直線
的な軌跡の長さと地図情報記録媒体から読み出さ
れたリンクが直線的に連続した長さとを比較して
軌跡が連続したリンクより長いときにはそのリン
クのある道路上に車両が存在せず、軌跡が連続し
たリンクより短いときはそのリンク上に車両が存
在すると判断して、前記整合に供する判断手段と
を設けたことを特徴とする車載用航法装置。 An in-vehicle navigation device that estimates the current location based on the vehicle's travel distance and direction, and when the estimated current location does not match the road conditions in the map information, moves the estimated current location to a suitable road to match the actual location. It's hot,
The road is subdivided into links based on road intersections, bends, and other nodes, and linearly continuous links are recorded on a map information recording medium that can be read out at each starting point, and the straight line along which the vehicle has traveled. Compare the length of the actual trajectory with the length of linearly continuous links read from the map information recording medium. If the trajectory is longer than the continuous links, there is no vehicle on the road with that link, and the trajectory is 1. A vehicle-mounted navigation system, comprising: determining means that determines that a vehicle is present on the link when the link is shorter than a continuous link, and performs the matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227088U JPH0283410U (en) | 1988-12-14 | 1988-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16227088U JPH0283410U (en) | 1988-12-14 | 1988-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283410U true JPH0283410U (en) | 1990-06-28 |
Family
ID=31445944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16227088U Pending JPH0283410U (en) | 1988-12-14 | 1988-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283410U (en) |
-
1988
- 1988-12-14 JP JP16227088U patent/JPH0283410U/ja active Pending
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