A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RADIO COMMUNICATION SYSTEM FOR VEHICLE
PROBLEM TO BE SOLVED: To provide a radio communication system for vehicle, capable of suppressing degradation in user's convenience by forming a stable detection area of a portable device.SOLUTION: The radio communication system for vehicle includes: an on-vehicle device installed on a vehicle and a portable device held by a user. The on-vehicle device and the portable device can be communicated with each other. The on-vehicle device includes: a transmission part for transmitting a radio signal to the portable device; an estimation part for estimating an ambient environment of the portable device; and an adjustment part for adjusting transmission power of the transmission part according to the estimated ambient environment.SELECTED DRAWING: Figure 1
【課題】安定した携帯機の検知エリアを形成でき、ユーザの利便性の低下を抑制する車両用無線通信システムを提供する。【解決手段】車両に搭載した車載装置と、ユーザが所持する携帯機と、を含み、車載装置と携帯機とは相互に無線通信可能であり、車載装置は、携帯機に無線信号を送信する送信部と、携帯機の周囲環境を推定する推定部と、推定した周囲環境に応じて、送信部の送信電力を調整する調整部と、を備える。【選択図】図１
RADIO COMMUNICATION SYSTEM FOR VEHICLE
PROBLEM TO BE SOLVED: To provide a radio communication system for vehicle, capable of suppressing degradation in user's convenience by forming a stable detection area of a portable device.SOLUTION: The radio communication system for vehicle includes: an on-vehicle device installed on a vehicle and a portable device held by a user. The on-vehicle device and the portable device can be communicated with each other. The on-vehicle device includes: a transmission part for transmitting a radio signal to the portable device; an estimation part for estimating an ambient environment of the portable device; and an adjustment part for adjusting transmission power of the transmission part according to the estimated ambient environment.SELECTED DRAWING: Figure 1
【課題】安定した携帯機の検知エリアを形成でき、ユーザの利便性の低下を抑制する車両用無線通信システムを提供する。【解決手段】車両に搭載した車載装置と、ユーザが所持する携帯機と、を含み、車載装置と携帯機とは相互に無線通信可能であり、車載装置は、携帯機に無線信号を送信する送信部と、携帯機の周囲環境を推定する推定部と、推定した周囲環境に応じて、送信部の送信電力を調整する調整部と、を備える。【選択図】図１
RADIO COMMUNICATION SYSTEM FOR VEHICLE
車両用無線通信システム
KATO YOICHI (author) / UENO KOJI (author)
2016-08-04
Patent
Electronic Resource
Japanese
RADIO COMMUNICATION DEVICE, VEHICLE HAVING THE SAME, AND RADIO COMMUNICATION SYSTEM
| European Patent Office | 2021
VEHICLE RADIO COMMUNICATION SYSTEM, VEHICLE CONTROLLER, AND PORTABLE APPARATUS
| European Patent Office | 2016
ON-VEHICLE DEVICE, PORTABLE APPARATUS, AND VEHICLE RADIO COMMUNICATION SYSTEM
| European Patent Office | 2017
ON-VEHICLE DEVICE, PORTABLE APPARATUS, AND VEHICLE RADIO COMMUNICATION SYSTEM
| European Patent Office | 2017