Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VEHICLE SYSTEM, ON-VEHICLE DEVICE, AND PORTABLE DEVICE
To determine a position of a portable device even when a body of a vehicle is resinified, and more accurately determine that the portable device is present inside and outside a cabin.SOLUTION: An LF transmission antenna is arranged so that directions of magnetic field vectors are different with a borderline region between inside and outside of a cabin of a vehicle as a boundary, a portable device includes an RSSI measurement circuit which measures RSSI of an LF signal received from the LF transmission antenna, a vector direction specification part specifying the directions of magnetic field vectors of the LF transmission antenna and an RF transmission part replying a response signal including the RSSI and the directions of the magnetic field vectors, and BCM 30 includes a response acquisition part 303 which acquires the response signal replied from the RF transmission part and a position determination part 306 which performs inside and outside determination using not only the RSSI included in the response signal acquired by the response acquisition part 303 but also the directions of the magnetic field vectors, and determines a position of the portable device.SELECTED DRAWING: Figure 6
【課題】車両のボデーが樹脂化された場合であっても、携帯機の位置の判定において携帯機が車室内外のいずれに存在するかまで、より精度良く判定することを可能にする。【解決手段】ＬＦ送信アンテナは、車両の車室内外の境界領域に、その境界領域を境に磁界ベクトルの方向が異なるように配置されるものであり、携帯機は、ＬＦ送信アンテナから受信するＬＦ信号のＲＳＳＩを測定するＲＳＳＩ測定回路と、そのＬＦ送信アンテナの磁界ベクトルの方向を特定するベクトル方向特定部と、ＲＳＳＩ及び磁界ベクトルの方向を含む応答信号を返信するＲＦ送信部とを備え、ＢＣＭ３０は、ＲＦ送信部から返信される応答信号を取得する応答取得部３０３と、応答取得部３０３で取得する応答信号に含まれるＲＳＳＩに加え、磁界ベクトルの方向を用いて内外判定を行って携帯機の位置を判定する位置判定部３０６とを備える。【選択図】図６
VEHICLE SYSTEM, ON-VEHICLE DEVICE, AND PORTABLE DEVICE
To determine a position of a portable device even when a body of a vehicle is resinified, and more accurately determine that the portable device is present inside and outside a cabin.SOLUTION: An LF transmission antenna is arranged so that directions of magnetic field vectors are different with a borderline region between inside and outside of a cabin of a vehicle as a boundary, a portable device includes an RSSI measurement circuit which measures RSSI of an LF signal received from the LF transmission antenna, a vector direction specification part specifying the directions of magnetic field vectors of the LF transmission antenna and an RF transmission part replying a response signal including the RSSI and the directions of the magnetic field vectors, and BCM 30 includes a response acquisition part 303 which acquires the response signal replied from the RF transmission part and a position determination part 306 which performs inside and outside determination using not only the RSSI included in the response signal acquired by the response acquisition part 303 but also the directions of the magnetic field vectors, and determines a position of the portable device.SELECTED DRAWING: Figure 6
【課題】車両のボデーが樹脂化された場合であっても、携帯機の位置の判定において携帯機が車室内外のいずれに存在するかまで、より精度良く判定することを可能にする。【解決手段】ＬＦ送信アンテナは、車両の車室内外の境界領域に、その境界領域を境に磁界ベクトルの方向が異なるように配置されるものであり、携帯機は、ＬＦ送信アンテナから受信するＬＦ信号のＲＳＳＩを測定するＲＳＳＩ測定回路と、そのＬＦ送信アンテナの磁界ベクトルの方向を特定するベクトル方向特定部と、ＲＳＳＩ及び磁界ベクトルの方向を含む応答信号を返信するＲＦ送信部とを備え、ＢＣＭ３０は、ＲＦ送信部から返信される応答信号を取得する応答取得部３０３と、応答取得部３０３で取得する応答信号に含まれるＲＳＳＩに加え、磁界ベクトルの方向を用いて内外判定を行って携帯機の位置を判定する位置判定部３０６とを備える。【選択図】図６
VEHICLE SYSTEM, ON-VEHICLE DEVICE, AND PORTABLE DEVICE
車両システム、車載装置、及び携帯機
SHINODA TAKUJI (Autor:in)
20.06.2019
Patent
Elektronische Ressource
Japanisch
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