A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
KEYLESS ENTRY SYSTEM AND VEHICLE SIDE DEVICE
To provide a keyless entry system which improves security to relay attacks.SOLUTION: A keyless entry system comprises a vehicle side device 1 and a portable device 30. The vehicle side device 1 comprises transmitting antennas 7a-7c which are arranged at different positions, and a LF transmitting section 13 which transmits request signals SB1-SB3 in a transmission order O2 that is different from a transmission order O1 after transmitting request signals SA1-SA3 in the transmission order O1 from the transmitting antennas 7a-7c. The portable device 30 comprises a control section 40 which specifies request signals that the same antennas have transmitted from the request signals SA1-SA3 and the request signals SB1-SB3 that the transmitting antennas 7a-7c have transmitted based on the transmission order O1 and the transmission order O2, and determines whether receiving intensity ratios of request signals that the same antennas have transmitted coincide with each other.SELECTED DRAWING: Figure 1
【課題】リレーアタックに対するセキュリティを向上させる。【解決手段】キーレスエントリーシステムは、車両側装置１と携帯機３０を備える。車両側装置１は、異なる位置に配置された送信アンテナ７ａ〜７ｃと、送信アンテナ７ａ〜７ｃから送信順序Ｏ１でリクエスト信号ＳＡ１〜ＳＡ３を送信させた後、送信順序Ｏ１と異なる送信順序Ｏ２リクエスト信号ＳＢ１〜ＳＢ３を送信させるＬＦ送信部１３と、を備える。携帯機３０は、送信順序Ｏ１と送信順序Ｏ２に基づいて、送信アンテナ７ａ〜７ｃが送信したリクエスト信号ＳＡ１〜ＳＡ３とリクエスト信号ＳＢ１〜ＳＢ３から、同じアンテナが送信したリクエスト信号を特定し、同じアンテナが送信したリクエスト信号の受信強度比が一致するか否かを判定する制御部４０を備える。【選択図】図１
KEYLESS ENTRY SYSTEM AND VEHICLE SIDE DEVICE
To provide a keyless entry system which improves security to relay attacks.SOLUTION: A keyless entry system comprises a vehicle side device 1 and a portable device 30. The vehicle side device 1 comprises transmitting antennas 7a-7c which are arranged at different positions, and a LF transmitting section 13 which transmits request signals SB1-SB3 in a transmission order O2 that is different from a transmission order O1 after transmitting request signals SA1-SA3 in the transmission order O1 from the transmitting antennas 7a-7c. The portable device 30 comprises a control section 40 which specifies request signals that the same antennas have transmitted from the request signals SA1-SA3 and the request signals SB1-SB3 that the transmitting antennas 7a-7c have transmitted based on the transmission order O1 and the transmission order O2, and determines whether receiving intensity ratios of request signals that the same antennas have transmitted coincide with each other.SELECTED DRAWING: Figure 1
【課題】リレーアタックに対するセキュリティを向上させる。【解決手段】キーレスエントリーシステムは、車両側装置１と携帯機３０を備える。車両側装置１は、異なる位置に配置された送信アンテナ７ａ〜７ｃと、送信アンテナ７ａ〜７ｃから送信順序Ｏ１でリクエスト信号ＳＡ１〜ＳＡ３を送信させた後、送信順序Ｏ１と異なる送信順序Ｏ２リクエスト信号ＳＢ１〜ＳＢ３を送信させるＬＦ送信部１３と、を備える。携帯機３０は、送信順序Ｏ１と送信順序Ｏ２に基づいて、送信アンテナ７ａ〜７ｃが送信したリクエスト信号ＳＡ１〜ＳＡ３とリクエスト信号ＳＢ１〜ＳＢ３から、同じアンテナが送信したリクエスト信号を特定し、同じアンテナが送信したリクエスト信号の受信強度比が一致するか否かを判定する制御部４０を備える。【選択図】図１
KEYLESS ENTRY SYSTEM AND VEHICLE SIDE DEVICE
キーレスエントリーシステムおよび車両側装置
SAITO SHINJI (author)
2019-02-21
Patent
Electronic Resource
Japanese
| European Patent Office | 2016