JPH0233316U - - Google Patents
Info
- Publication number
- JPH0233316U JPH0233316U JP11293488U JP11293488U JPH0233316U JP H0233316 U JPH0233316 U JP H0233316U JP 11293488 U JP11293488 U JP 11293488U JP 11293488 U JP11293488 U JP 11293488U JP H0233316 U JPH0233316 U JP H0233316U
- Authority
- JP
- Japan
- Prior art keywords
- current position
- shape
- degree
- coincidence
- road
- 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 12
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Instructional Devices (AREA)
Description
第１図は本考案のクレーム対応図、第２図は本
考案が適用された実施例装置の電気的なハードウ
エア構成を示すブロツク図、第３図は本考案が適
用された実施例装置の処理手順を示すフローチヤ
ート、第４図は前回の修正位置を中心に候補点が
登録される場合の説明図、第５図は現在位置の周
囲に候補点が登録される場合の説明図、第６図お
よび第７図は軌跡形状を逐次弛緩しつつ道路上の
点を検索していく場合の作用説明図、第８図は軌
跡データ説明図、第９図はメモリ部の説明図、第
１０図および第１１図はパターンマツチの作用説
明図、第１２図は軌跡データ上の点と道路上の対
応する点との距離の最小二乗和を算出する場合の
説明図、第１３図は最小二乗和の算出作用説明図
、第１４図ないし第１７図は標準偏差および相関
係数に基づいて現在位置を修正する場合の作用説
明図である。
１……ＣＰＵ、７……Ｖ―ＲＡＭ、８……ＲＯ
Ｍ、９……Ｄ―ＲＡＭ、１２……方位センサ、１
３……距離センサ、１９……ＣＤ―ＲＯＭ、２０
……ＣＲＴ。
Fig. 1 is a diagram corresponding to claims of the present invention, Fig. 2 is a block diagram showing the electrical hardware configuration of an embodiment device to which the present invention is applied, and Fig. 3 is a diagram of an embodiment device to which the present invention is applied. Flowchart showing the processing procedure. FIG. 4 is an explanatory diagram when candidate points are registered around the previous corrected position. FIG. 5 is an explanatory diagram when candidate points are registered around the current position. Figures 6 and 7 are diagrams for explaining the operation when searching for points on the road while gradually relaxing the trajectory shape, Figure 8 is a diagram for explaining the trajectory data, Figure 9 is a diagram for explaining the memory section, and Figure 10 is an illustration for explaining the trajectory data. Figure 11 is an explanatory diagram of the effect of pattern matching, Figure 12 is an explanatory diagram of calculating the least square sum of distances between a point on trajectory data and a corresponding point on the road, and Figure 13 is an illustration of least squares. 14 to 17 are explanatory diagrams of the operation of calculating the sum. FIGS. 14 to 17 are explanatory diagrams of the operation when correcting the current position based on the standard deviation and the correlation coefficient. 1...CPU, 7...V-RAM, 8...RO
M, 9...D-RAM, 12...Direction sensor, 1
3... Distance sensor, 19... CD-ROM, 20
...CRT.
Claims (1)
を逐次書換えつつ、その上に現在位置を更新表示
させるようにした移動体用現在位置表示装置にお
いて、 道路地図情報を記憶する地図情報記憶手段と、 単位距離走行毎の軌跡データを記憶する軌跡デ
ータ記憶手段と、 所定距離走行分の走行軌跡の形状と、該走行軌
跡に対応する道路形状との一致度を判定する形状
一致度判定手段と、 上記形状一致度判定手段によつて判定される前
回修正時における走行軌跡形状と道路形状の一致
度が一定値以上の場合、前回の修正位置を始点に
して現在位置を演算修正する第１の現在位置修正
手段と、 上記判定される一致度が一定値以下の場合、現
在位置の周囲の道路上に現在位置の候補点を検索
するとともに、この検索された候補点を始点とし
て現在位置を演算修正する第２の現在位置修正手
段と、 を有することを特徴とする移動体用現在位置表
示装置。[Scope of Claim for Utility Model Registration] A current position display device for a mobile object that stores road map information in a current position display device for a mobile object that updates and displays the current position while sequentially rewriting the displayed map on the display screen as the current position moves. a map information storage means for storing trajectory data for each unit distance traveled; and a shape for determining the degree of coincidence between the shape of a travel trajectory for a predetermined distance traveled and the road shape corresponding to the travel trajectory. a coincidence degree determining means; and if the degree of coincidence between the travel trajectory shape and the road shape at the time of the previous correction determined by the shape coincidence degree determination means is equal to or greater than a certain value, the current position is calculated using the previously revised position as a starting point; a first current position correction means for correcting; if the determined degree of matching is below a certain value, search for a candidate point for the current position on the road around the current position, and set this searched candidate point as a starting point; A current position display device for a moving object, comprising: second current position correcting means for calculating and correcting the current position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11293488U JPH0233316U (en) | 1988-08-29 | 1988-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11293488U JPH0233316U (en) | 1988-08-29 | 1988-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233316U true JPH0233316U (en) | 1990-03-02 |
Family
ID=31352326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11293488U Pending JPH0233316U (en) | 1988-08-29 | 1988-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288781A (en) * | 1993-04-02 | 1994-10-18 | Fujitsu Ten Ltd | Vehicle position detecting device |
-
1988
- 1988-08-29 JP JP11293488U patent/JPH0233316U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06288781A (en) * | 1993-04-02 | 1994-10-18 | Fujitsu Ten Ltd | Vehicle position detecting device |
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