JPH0171610U - - Google Patents
Info
- Publication number
- JPH0171610U JPH0171610U JP1987166571U JP16657187U JPH0171610U JP H0171610 U JPH0171610 U JP H0171610U JP 1987166571 U JP1987166571 U JP 1987166571U JP 16657187 U JP16657187 U JP 16657187U JP H0171610 U JPH0171610 U JP H0171610U
- Authority
- JP
- Japan
- Prior art keywords
- current location
- location
- vehicle
- road map
- estimated current
- 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 2
Description
第１図は、この考案の車載用航法装置の一実施
例を示す回路構成図、第２図は、第１図に示した
中央処理装置の動作を説明するためのフローチヤ
ート、第３図は、従来の車載用航法装置の一例を
示す回路構成図である。
２……方位センサ、３……走行距離センサ、６
……道路地図情報記録媒体、２１……車載用航法
装置、２２……中央処理装置。
FIG. 1 is a circuit configuration diagram showing an embodiment of the in-vehicle navigation system of this invention, FIG. 2 is a flowchart for explaining the operation of the central processing unit shown in FIG. 1, and FIG. , is a circuit configuration diagram showing an example of a conventional vehicle-mounted navigation device. 2... Orientation sensor, 3... Mileage sensor, 6
... road map information recording medium, 21 ... vehicle navigation device, 22 ... central processing unit.
Claims (1)
現在地を推定し、道路地図に合致する位置を推定
現在地として表示する車載用航法装置であつて、
前記道路地図に合致する推定現在地が複数存在す
る場合、その後の推定で現実妥当性が否定される
まで、それぞれの推定現在地を実位置候補として
現在地推定の基礎とする現在地推定手段を設けて
なる車載用航法装置。 An in-vehicle navigation device that estimates the current location of a vehicle from the outputs of a direction sensor and a mileage sensor, and displays a location that matches a road map as the estimated current location,
If there are multiple estimated current locations that match the road map, the vehicle is equipped with a current location estimating means that uses each estimated current location as an actual location candidate as a basis for estimating the current location until subsequent estimations deny the validity of the current location. navigation equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987166571U JPH0171610U (en) | 1987-10-30 | 1987-10-30 | |
| US07/263,359 US4964052A (en) | 1987-10-30 | 1988-10-27 | Navigation device for use in a vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987166571U JPH0171610U (en) | 1987-10-30 | 1987-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0171610U true JPH0171610U (en) | 1989-05-12 |
Family
ID=31454072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987166571U Pending JPH0171610U (en) | 1987-10-30 | 1987-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0171610U (en) |
-
1987
- 1987-10-30 JP JP1987166571U patent/JPH0171610U/ja active Pending
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