PROBLEM TO BE SOLVED: To provide a technology for achieving anonymization to prevent a user from being specified from the position information of a mobile body.SOLUTION: The position information management device divides an area where a mobile body moves into a plurality of areas, and determines the area where the mobile body is positioned on the basis of position information in which the position of the mobile body was recorded, and generates movement history information indicating the transition of the area where the mobile body is positioned accompanying the movement of the mobile body, and searches visit frequency of each area from the movement history information, and specifies the area whose visit frequency satisfies a predetermined condition as the specific area, and deletes the position information indicating the position in the specific area from the position information.SELECTED DRAWING: Figure 1

    【課題】移動体の位置情報から当該利用者を特定できないように匿名化する技術を提供する。【解決手段】移動体が移動する地域を複数のエリアに区画し、前記移動体の位置を記録した位置情報に基づいて前記移動体が位置するエリアを判定し、前記移動体の移動に伴う前記移動体が位置するエリアの遷移を表す移動履歴情報を生成し、前記移動履歴情報から前記エリア毎の訪問頻度を求め、前記訪問頻度が所定条件を満たす前記エリアを特定エリアとして特定し、前記位置情報から前記特定エリア内の位置を示す位置情報を削除する。【選択図】図1


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    Title :

    POSITION INFORMATION MANAGEMENT DEVICE AND POSITION INFORMATION MANAGEMENT METHOD


    Additional title:

    位置情報管理装置及び位置情報管理方法


    Contributors:

    Publication date :

    2016-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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