A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION SYSTEM CONTROL METHOD
To provide a position determination system and position determination system control method capable of achieving both of improvement of accuracy in determining a position of a portable terminal and suppression of an increase of power consumption.SOLUTION: A vehicle 1 has a position determination system 30 for determining a position of a portable terminal 2 with respect to the vehicle 1 when radio communication is to be performed with the portable terminal 2. The position determination system 30 includes: a position determination section 31 for determining a position of the portable terminal 2 with the use of an average value of reception intensities of multiple position detection signals transmitted between the portable terminal 2, and an outdoor antenna 16 and an indoor antenna 17 of the vehicle 1; and a transmission control section 33 for controlling a transmission interval of a position detection signal. The transmission control section 33 changes over the outdoor antenna 16 and the indoor antenna 17 between a burst state where a predetermined number of position detection signals are consecutively transmitted in a regulated period and a non-burst state where a position detection signal is transmitted by allowing a transmission interval to be longer than that of the burst state.SELECTED DRAWING: Figure 1
【課題】携帯端末の位置判定の精度向上と、消費電力の増加抑制との両立を可能にした位置判定システム及び位置判定システムの制御方法を提供する。【解決手段】車両１には、携帯端末２と無線通信する場合に、車両１に対する携帯端末２の位置を判定する位置判定システム３０が設けられている。位置判定システム３０は、携帯端末２と車両１の室外アンテナ１６及び室内アンテナ１７との間で送信された複数の位置検出信号の受信強度の平均値を用いて、携帯端末２の位置を判定する位置判定部３１と、位置検出信号の送信間隔を制御する送信制御部３３とを備えている。送信制御部３３は、室外アンテナ１６及び室内アンテナ１７を、規定の期間に所定個数の位置検出信号を連続的に送信するバースト状態と、バースト状態よりも送信間隔を延ばして位置検出信号を送信する非バースト状態との間で切り替える。【選択図】図１
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION SYSTEM CONTROL METHOD
To provide a position determination system and position determination system control method capable of achieving both of improvement of accuracy in determining a position of a portable terminal and suppression of an increase of power consumption.SOLUTION: A vehicle 1 has a position determination system 30 for determining a position of a portable terminal 2 with respect to the vehicle 1 when radio communication is to be performed with the portable terminal 2. The position determination system 30 includes: a position determination section 31 for determining a position of the portable terminal 2 with the use of an average value of reception intensities of multiple position detection signals transmitted between the portable terminal 2, and an outdoor antenna 16 and an indoor antenna 17 of the vehicle 1; and a transmission control section 33 for controlling a transmission interval of a position detection signal. The transmission control section 33 changes over the outdoor antenna 16 and the indoor antenna 17 between a burst state where a predetermined number of position detection signals are consecutively transmitted in a regulated period and a non-burst state where a position detection signal is transmitted by allowing a transmission interval to be longer than that of the burst state.SELECTED DRAWING: Figure 1
【課題】携帯端末の位置判定の精度向上と、消費電力の増加抑制との両立を可能にした位置判定システム及び位置判定システムの制御方法を提供する。【解決手段】車両１には、携帯端末２と無線通信する場合に、車両１に対する携帯端末２の位置を判定する位置判定システム３０が設けられている。位置判定システム３０は、携帯端末２と車両１の室外アンテナ１６及び室内アンテナ１７との間で送信された複数の位置検出信号の受信強度の平均値を用いて、携帯端末２の位置を判定する位置判定部３１と、位置検出信号の送信間隔を制御する送信制御部３３とを備えている。送信制御部３３は、室外アンテナ１６及び室内アンテナ１７を、規定の期間に所定個数の位置検出信号を連続的に送信するバースト状態と、バースト状態よりも送信間隔を延ばして位置検出信号を送信する非バースト状態との間で切り替える。【選択図】図１
POSITION DETERMINATION SYSTEM AND POSITION DETERMINATION SYSTEM CONTROL METHOD
位置判定システム及び位置判定システムの制御方法
KOSUGI MASANORI (author) / WATABE SHINYA (author) / KITAGAWA HIROSHI (author) / INAMI YUICHI (author)
2020-06-04
Patent
Electronic Resource
Japanese
IPC:
H04M
TELEPHONIC COMMUNICATION
,
Fernsprechverkehr
/
B60R
Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen
,
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
/
E05B
LOCKS
,
Schlösser
/
G01S
RADIO DIRECTION-FINDING
,
Funkpeilung
/
H04Q
Wähltechnik
,
SELECTING
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