A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a user position determining system with which it is possible to determine the position of a user with high accuracy.SOLUTION: The user position determining system comprises: a signal strength acquisition unit for acquiring received signal strength when a vehicle interior antenna has received a radio wave transmitted from a portable terminal; and a position determination unit for determining, on the basis of a change tendency of the received signal strength acquired by the signal strength acquisition unit, whether or not a user carrying the portable terminal exists in the surrounding of the vehicle. A plurality of vehicle interior antennas are arranged such that, in a relationship between the distance of the portable terminal to the vehicle and the received signal strength when a vehicle interior antenna has received the radio wave transmitted by the portable terminal, the distance at which the received signal strength becomes a minimum value deviates from each other. The position determination unit determines that a user carrying the portable terminal exists in the surrounding of the vehicle, on the basis of the fact that the received signal strength of the plurality of vehicle interior antennas has been on the decrease.SELECTED DRAWING: Figure 9
【課題】高い精度で、ユーザの位置を判定することができるユーザ位置判定システムを提供する。【解決手段】携帯端末から送信された電波を車室内アンテナが受信したときの受信信号強度を取得する信号強度取得部と、信号強度取得部が取得した受信信号強度の変化傾向に基づいて、携帯端末を携帯したユーザが車両の周辺に存在するか否かを判定する位置判定部とを備え、携帯端末が送信する電波を車室内アンテナが受信したときの、車両に対する携帯端末の距離と受信信号強度との関係において、受信信号強度の極小値となる距離が相互にずれるように、複数の車室内アンテナは配置されており、位置判定部は、複数の車室内アンテナの受信信号強度が減少傾向になったことをもとに、携帯端末を携帯したユーザが車両の周辺に存在すると判定する。【選択図】図９
To provide a user position determining system with which it is possible to determine the position of a user with high accuracy.SOLUTION: The user position determining system comprises: a signal strength acquisition unit for acquiring received signal strength when a vehicle interior antenna has received a radio wave transmitted from a portable terminal; and a position determination unit for determining, on the basis of a change tendency of the received signal strength acquired by the signal strength acquisition unit, whether or not a user carrying the portable terminal exists in the surrounding of the vehicle. A plurality of vehicle interior antennas are arranged such that, in a relationship between the distance of the portable terminal to the vehicle and the received signal strength when a vehicle interior antenna has received the radio wave transmitted by the portable terminal, the distance at which the received signal strength becomes a minimum value deviates from each other. The position determination unit determines that a user carrying the portable terminal exists in the surrounding of the vehicle, on the basis of the fact that the received signal strength of the plurality of vehicle interior antennas has been on the decrease.SELECTED DRAWING: Figure 9
【課題】高い精度で、ユーザの位置を判定することができるユーザ位置判定システムを提供する。【解決手段】携帯端末から送信された電波を車室内アンテナが受信したときの受信信号強度を取得する信号強度取得部と、信号強度取得部が取得した受信信号強度の変化傾向に基づいて、携帯端末を携帯したユーザが車両の周辺に存在するか否かを判定する位置判定部とを備え、携帯端末が送信する電波を車室内アンテナが受信したときの、車両に対する携帯端末の距離と受信信号強度との関係において、受信信号強度の極小値となる距離が相互にずれるように、複数の車室内アンテナは配置されており、位置判定部は、複数の車室内アンテナの受信信号強度が減少傾向になったことをもとに、携帯端末を携帯したユーザが車両の周辺に存在すると判定する。【選択図】図９
USER POSITION DETERMINING SYSTEM
ユーザ位置判定システム
MIYAZAWA KEI (author)
2021-06-24
Patent
Electronic Resource
Japanese
POSITION DETERMINING SYSTEM AND POSITION DETERMINING METHOD
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