JPH0185625U - - Google Patents

Info

Publication number
JPH0185625U
JPH0185625U JP18214487U JP18214487U JPH0185625U JP H0185625 U JPH0185625 U JP H0185625U JP 18214487 U JP18214487 U JP 18214487U JP 18214487 U JP18214487 U JP 18214487U JP H0185625 U JPH0185625 U JP H0185625U
Authority
JP
Japan
Prior art keywords
map
vehicle
current location
frame
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
Application number
JP18214487U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP18214487U priority Critical patent/JPH0185625U/ja
Publication of JPH0185625U publication Critical patent/JPH0185625U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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
中央処理装置による道路地図の更新動作を説明す
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。 ６…地図情報記録媒体、８…デイスプレイ装置
、２１…車載用航法装置、２２…バツフアメモリ
、２３…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, and FIG. 2 is a flowchart for explaining the road map updating operation by the central processing unit shown in FIG. FIG. 3 is a circuit configuration diagram showing an example of a conventional vehicle-mounted navigation device. 6...Map information recording medium, 8...Display device, 21...Vehicle navigation device, 22...Buffer memory, 23...Central processing unit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] デイスプレイ装置の画面に映し出された道路地
図上に、車両の推定現在地を表示することにより
、航行案内とする車載用航法装置であつて、道路
地図をデイスプレイ装置の表示枠の大きさを単位
に分割して作成された複数の地図ブロツクのうち
、車両の推定現在地を示す地図ブロツクとこれを
囲む数ブロツク分の地図データを記憶することの
できるバツフアメモリと、上記表示枠を相似的に
拡大した拡大枠を想定し、車両の推定現在地の移
動とともに、一部でも拡大枠に含まれるに至つた
地図ブロツクを、前記バツフアメモリに書き込み
、表示枠内に表示される地図データの更新に備え
させる周辺地図更新手段とを設けてなる車載用航
法装置。 An in-vehicle navigation device that provides navigation guidance by displaying the estimated current location of the vehicle on the road map displayed on the screen of the display device, which divides the road map into units of the size of the display frame of the display device. A buffer memory that can store a map block indicating the estimated current location of the vehicle, several blocks worth of map data surrounding it, and an enlarged frame that is similar to the above display frame. Surrounding map updating means assumes that the estimated current location of the vehicle moves and writes map blocks that have even partially been included in the enlarged frame into the buffer memory in preparation for updating the map data displayed within the display frame. An on-vehicle navigation device comprising:
JP18214487U 1987-11-30 1987-11-30 Pending JPH0185625U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18214487U JPH0185625U (en) 1987-11-30 1987-11-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18214487U JPH0185625U (en) 1987-11-30 1987-11-30

Publications (1)

Publication Number Publication Date
JPH0185625U true JPH0185625U (en) 1989-06-07

Family

ID=31473596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18214487U Pending JPH0185625U (en) 1987-11-30 1987-11-30

Country Status (1)

Country Link
JP (1) JPH0185625U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139689A (en) * 1989-10-25 1991-06-13 Fujitsu Ten Ltd Display device for map
JPH03115812U (en) * 1990-03-12 1991-12-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139689A (en) * 1989-10-25 1991-06-13 Fujitsu Ten Ltd Display device for map
JPH03115812U (en) * 1990-03-12 1991-12-02

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