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To provide a technique capable of reducing a detection delay against an approach of a user.SOLUTION: A position determination device makes an anchor to intermittently perform a distance measuring communication with a portable device after a measuring distance setting is exchanged in a short-range communication in the case where it is connected with the portable device in the short-range communication. In the case where the position determination device is connected for communicating with a plurality of portable devices, the anchor executes the distance measuring communication with each of the plurality of portable devices. The position determination device determines a priority order for each portable device on the basis of a reception strength of a signal from the portable device, a result of the distance measuring communication, or an attribute of an owner. The anchor detects a collision timing when distance measuring timings of the plurality of portable devices overlap on the basis of the distance measuring setting. The anchor executes the distance measuring communication with the portable device of which the priority order is relatively high at the collision timing.SELECTED DRAWING: Figure 11
【課題】ユーザの接近に対する検出遅れを低減可能な技術を提供する。【解決手段】位置判定装置は、携帯デバイスと近距離通信で接続した場合、近距離通信にて測距設定を交換した後に、アンカーに間欠的に携帯デバイスと測距通信を実施させる。位置判定装置が複数の携帯デバイスと通信接続している場合、アンカーは複数の携帯デバイスのそれぞれと測距通信を実行する。位置判定装置は、携帯デバイスからの信号の受信強度、測距通信の結果、又は所有者の属性に基づいて、携帯デバイスごとの優先順位を決定する。アンカーは、測距設定に基づいて、複数の携帯デバイスの測距タイミングが重なる衝突タイミングを検出する。アンカーは衝突タイミングにおいては、相対的に優先順位の高い携帯デバイスと測距通信を実施する。【選択図】図11
To provide a technique capable of reducing a detection delay against an approach of a user.SOLUTION: A position determination device makes an anchor to intermittently perform a distance measuring communication with a portable device after a measuring distance setting is exchanged in a short-range communication in the case where it is connected with the portable device in the short-range communication. In the case where the position determination device is connected for communicating with a plurality of portable devices, the anchor executes the distance measuring communication with each of the plurality of portable devices. The position determination device determines a priority order for each portable device on the basis of a reception strength of a signal from the portable device, a result of the distance measuring communication, or an attribute of an owner. The anchor detects a collision timing when distance measuring timings of the plurality of portable devices overlap on the basis of the distance measuring setting. The anchor executes the distance measuring communication with the portable device of which the priority order is relatively high at the collision timing.SELECTED DRAWING: Figure 11
【課題】ユーザの接近に対する検出遅れを低減可能な技術を提供する。【解決手段】位置判定装置は、携帯デバイスと近距離通信で接続した場合、近距離通信にて測距設定を交換した後に、アンカーに間欠的に携帯デバイスと測距通信を実施させる。位置判定装置が複数の携帯デバイスと通信接続している場合、アンカーは複数の携帯デバイスのそれぞれと測距通信を実行する。位置判定装置は、携帯デバイスからの信号の受信強度、測距通信の結果、又は所有者の属性に基づいて、携帯デバイスごとの優先順位を決定する。アンカーは、測距設定に基づいて、複数の携帯デバイスの測距タイミングが重なる衝突タイミングを検出する。アンカーは衝突タイミングにおいては、相対的に優先順位の高い携帯デバイスと測距通信を実施する。【選択図】図11
DISTANCE MEASURING SYSTEM AND DISTANCE MEASURING METHOD
測距システム、測距方法
MORI YUJI (author)
2024-10-18
Patent
Electronic Resource
Japanese
DISTANCE MEASURING SYSTEM, DISTANCE MEASURING DEVICE, AND DISTANCE MEASUREMENT METHOD
European Patent Office | 2020
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