To provide an abnormality detection device for efficiently detecting illegal communication in an on-vehicle network.SOLUTION: An abnormality detection device includes: an application rule storage section 230 for storing an application driving state 231 being at least one of multiple driving states and application rule information 232 corresponding to an application driving state within rule information for regulating the range of monitoring object information flowing in an on-vehicle network; a rule updating section 210 for acquiring a driving state, acquiring rule information corresponding to a driving state when an acquired driving state is different from an application driving state, and respectively updating an application driving state and application rule information that are stored in the application rule storage section with the use of an acquired driving state and acquired rule information; and an abnormality determination section 220 for acquiring monitoring object information in a range regulated by application rule information from the on-vehicle network, and determining whether an abnormality exists on the basis of acquired monitoring object information.SELECTED DRAWING: Figure 2

    【課題】車載ネットワークにおいて、より効率的に不正な通信を検知する異常検知装置を提供する。【解決手段】異常検知装置は、複数の運転状況のうちの少なくともひとつである適用運転状況231、及び車載ネットワークを流れる監視対象情報の範囲を規定するルール情報のうち適用運転状況に対応する適用ルール情報232を記憶する適用ルール記憶部230と、運転状況を取得し、取得した運転状況が適用運転状況と異なる場合に運転状況に対応するルール情報を取得し、取得した運転状況及び取得したルール情報で適用ルール記憶部に記憶された適用運転状況及び適用ルール情報をそれぞれ更新するルール更新部210と、車載ネットワークから、適用ルール情報に規定された範囲の監視対象情報を取得し、取得した監視対象情報に基づいて異常であるかどうかを判定する異常判定部220と、を備える。【選択図】図2


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    Title :

    ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION SYSTEM, ABNORMALITY DETECTION METHOD, ABNORMALITY DETECTION PROGRAM, AND RECORDING MEDIUM


    Additional title:

    異常検知装置、異常検知システム、異常検知方法、異常検知プログラム及び記録媒体


    Contributors:

    Publication date :

    2019-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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