To provide a retrieval device that can efficiently retrieve a route, as avoiding a traffic avoidance area having a complicated shape as a geographical area.SOLUTION: A navigation device NV, which retrieves a route of a vehicle, comprises: an interface 1 that acquires traffic prohibition zone data indicative of a traffic prohibition zone for a movement of a vehicle to be restricted; a setting unit 2 that sets a rectangular range in which the traffic prohibition zone is included, and with which at least one part of an outer edge of the traffic prohibition zone contacts from an inner side, on the basis of the traffic prohibition zone data; a division unit 3 that divides the rectangular range into a plurality of division ranges; a determination unit 4 that determines whether overlapping is present between an area corresponding to any division area and he traffic prohibition zone for each division range on the basis of each division range; and a retrieval unit 5 that conducts retrieval so as to exclude a road and the like existing in the area corresponding to the division range having existence of the overlapping determined, or the road and the like is relatively hard to become a part of a route relative to other road and the like.SELECTED DRAWING: Figure 2

    【課題】地理的な領域として複雑な形状を有する通行回避領域を回避しつつ効率的に経路を探索することが可能な探索装置を提供する。【解決手段】車両の経路を探索するナビゲーション装置NVにおいて、車両の移動が制限されるべき通行禁止区域を示す通行禁止区域データを取得するインターフェース1と、その通行禁止区域データに基づいて、通行禁止区域を内含し且つその外縁の少なくとも一部が内側から接するように矩形範囲を設定する設定部2と、矩形範囲を複数の分割範囲に分割する分割部3と、各分割範囲に基づいて、いずれかの分割範囲に相当する領域と通行禁止区域との間に重なりがあるか否かを、分割範囲ごとに判定する判定部3と、重なりがあると判定された分割範囲に相当する領域内に存在する道路等を候補から除外するか、又は当該道路等が他の道路等に対して相対的に経路の一部となり難いようにして探索を行う探索部5と、を備える。【選択図】図2


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    Titel :

    RETRIEVAL DEVICE, RETRIEVAL METHOD AND RETRIEVAL PROGRAM


    Weitere Titelangaben:

    探索装置、探索方法及び探索用プログラム


    Beteiligte:
    MATSUNAGA EIJI (Autor:in) / AMANO HIROSHI (Autor:in)

    Erscheinungsdatum :

    2021-04-08


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G09B Unterrichts- oder Vorführungsgeräte , EDUCATIONAL OR DEMONSTRATION APPLIANCES



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