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A platform for research: civil engineering, architecture and urbanism
PORTABLE MACHINE AND COMMUNICATION SYSTEM FOR VEHICLE
PROBLEM TO BE SOLVED: To provide a portable machine which moves in a direction approaching a vehicle or away from the vehicle, and a communication system for vehicle that can improve a radio communication distance to an on-vehicle machine and communication quality according to the moving direction of the portable machine.SOLUTION: A portable machine 2 comprises a transmission antenna for transmitting a signal to an on-vehicle machine which controls operations of pieces of electrical equipment and a reception antenna for receiving the signal transmitted from the on-vehicle machine. At least one of the transmission antenna and reception antenna is variable in directivity. The portable machine 2 further comprises an acceleration sensor 25 for detecting a moving direction of an own machine, and a control part 21 for directing, on the basis of a detection result of the acceleration sensor 25, the transmission antenna or reception antenna to the moving direction or anti-moving direction of the own machine.SELECTED DRAWING: Figure 3
【課題】車両に近づき又は車両から離れる方向へ移動する携帯機と、車載機との無線通信距離及び通信品質を、携帯機の移動方向に応じて向上させることができる車両用通信システム及び携帯機を提供する。【解決手段】携帯機２は、電装品の動作を制御する車載機へ信号を送信する送信アンテナと、車載機から送信される信号を受信する受信アンテナとを備える。送信アンテナ及び受信アンテナの少なくとも一つは指向性が可変である。携帯機２は、更に、自機の移動方向を検出する加速度センサ２５と、加速度センサ２５の検出結果に基づいて、送信アンテナ又は受信アンテナを、自機の移動方向又は反移動方向へ指向させる制御部２１とを備える。【選択図】図３
PORTABLE MACHINE AND COMMUNICATION SYSTEM FOR VEHICLE
PROBLEM TO BE SOLVED: To provide a portable machine which moves in a direction approaching a vehicle or away from the vehicle, and a communication system for vehicle that can improve a radio communication distance to an on-vehicle machine and communication quality according to the moving direction of the portable machine.SOLUTION: A portable machine 2 comprises a transmission antenna for transmitting a signal to an on-vehicle machine which controls operations of pieces of electrical equipment and a reception antenna for receiving the signal transmitted from the on-vehicle machine. At least one of the transmission antenna and reception antenna is variable in directivity. The portable machine 2 further comprises an acceleration sensor 25 for detecting a moving direction of an own machine, and a control part 21 for directing, on the basis of a detection result of the acceleration sensor 25, the transmission antenna or reception antenna to the moving direction or anti-moving direction of the own machine.SELECTED DRAWING: Figure 3
【課題】車両に近づき又は車両から離れる方向へ移動する携帯機と、車載機との無線通信距離及び通信品質を、携帯機の移動方向に応じて向上させることができる車両用通信システム及び携帯機を提供する。【解決手段】携帯機２は、電装品の動作を制御する車載機へ信号を送信する送信アンテナと、車載機から送信される信号を受信する受信アンテナとを備える。送信アンテナ及び受信アンテナの少なくとも一つは指向性が可変である。携帯機２は、更に、自機の移動方向を検出する加速度センサ２５と、加速度センサ２５の検出結果に基づいて、送信アンテナ又は受信アンテナを、自機の移動方向又は反移動方向へ指向させる制御部２１とを備える。【選択図】図３
PORTABLE MACHINE AND COMMUNICATION SYSTEM FOR VEHICLE
携帯機及び車両用通信システム
USAMI AKINORI (author)
2018-03-29
Patent
Electronic Resource
Japanese
IPC:
E05B
LOCKS
,
Schlösser
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