Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE DEVICE, PORTABLE DEVICE, AND COMPUTER PROGRAM
PROBLEM TO BE SOLVED: To provide a vehicle communication system, an on-vehicle device, a portable device, and a computer program that improve position determination accuracy of the portable device, taking an impact of a shield into consideration.SOLUTION: A vehicle communication system includes an on-vehicle device for transmitting and receiving signals via a plurality of antennas provided at different positions of a vehicle and a portable device including a measuring unit for receiving the signals transmitted from the antennas and measuring reception intensity of the received signals. The on-vehicle device or portable device includes a determination unit for determining the position of the portable device on the basis of the reception intensity measured by the portable device. The vehicle communication system includes a reception state determination unit for determining whether a reception state is good or bad from the reception intensity of each of the signals received by the portable device from the antennas.SELECTED DRAWING: Figure 4
【課題】遮蔽物の影響を考慮した携帯機の位置判定精度を向上させる車輌用通信システム、車載機、携帯機及びコンピュータプログラムを提供する。【解決手段】車輌の異なる位置に設けられた複数のアンテナにより信号を送受信する車載機と、前記複数のアンテナから送信された信号を受信し、受信した信号の受信強度を測定する測定部を備える携帯機とを含み、該携帯機にて測定された受信強度に基づいて前記携帯機の位置を特定する特定部を前記車載機又は携帯機が有する車輌用通信システムであって、前記複数のアンテナから前記携帯機にて受信した複数の信号夫々の受信強度から受信状況の良／不良を判別する受信状況判別部を備える。【選択図】図４
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE DEVICE, PORTABLE DEVICE, AND COMPUTER PROGRAM
PROBLEM TO BE SOLVED: To provide a vehicle communication system, an on-vehicle device, a portable device, and a computer program that improve position determination accuracy of the portable device, taking an impact of a shield into consideration.SOLUTION: A vehicle communication system includes an on-vehicle device for transmitting and receiving signals via a plurality of antennas provided at different positions of a vehicle and a portable device including a measuring unit for receiving the signals transmitted from the antennas and measuring reception intensity of the received signals. The on-vehicle device or portable device includes a determination unit for determining the position of the portable device on the basis of the reception intensity measured by the portable device. The vehicle communication system includes a reception state determination unit for determining whether a reception state is good or bad from the reception intensity of each of the signals received by the portable device from the antennas.SELECTED DRAWING: Figure 4
【課題】遮蔽物の影響を考慮した携帯機の位置判定精度を向上させる車輌用通信システム、車載機、携帯機及びコンピュータプログラムを提供する。【解決手段】車輌の異なる位置に設けられた複数のアンテナにより信号を送受信する車載機と、前記複数のアンテナから送信された信号を受信し、受信した信号の受信強度を測定する測定部を備える携帯機とを含み、該携帯機にて測定された受信強度に基づいて前記携帯機の位置を特定する特定部を前記車載機又は携帯機が有する車輌用通信システムであって、前記複数のアンテナから前記携帯機にて受信した複数の信号夫々の受信強度から受信状況の良／不良を判別する受信状況判別部を備える。【選択図】図４
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE DEVICE, PORTABLE DEVICE, AND COMPUTER PROGRAM
車輌用通信システム、車載機、携帯機及びコンピュータプログラム
TAKAOKA HARUHIKO (Autor:in)
05.04.2018
Patent
Elektronische Ressource
Japanisch
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