A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DISTANCE MEASURING SYSTEM
To provide a distance measuring system that facilitates establishing distance measurement communication.SOLUTION: In ID verification by an onboard unit 10 and an electronic key 20, a distance measurement unit 4 measures the distance between a vehicle 1 and the electronic key 20 and determines the correctness of ID verification. A plurality of UWB transceivers 16 are mounted in the vehicle 1, forming a plurality of radio wave propagation paths together with the electronic key 20. The operation sequence of the UWB transceivers 16 are determined by a communication control unit 6, and are activated in order. A communication stop part 7 of the electronic key 20 causes a UWB transceiver 26 to stop the reception of a radio wave when distance measurement communication is established by one of the UWB transceivers 16. Thus, it is made easy to establish distance measurement communication in a distance measuring system 2, and to improve convenience.SELECTED DRAWING: Figure 1
【課題】測距通信を成立しやすくする距離測定システムを提供する。【解決手段】車載機１０及び電子キー２０におけるＩＤ照合において、測距部４は、車両１と電子キー２０との距離を測定し、ＩＤ照合の正否を判定する。車両１には、複数のＵＷＢ送受信機１６が配置され、電子キー２０と複数の電波伝搬経路を形成する。ＵＷＢ送受信機１６は、通信制御部６により作動順を決定され、順番に作動させられる。電子キー２０の通信停止部７は、ＵＷＢ送受信機１６のいずれかにより測距通信が成立した場合に、ＵＷＢ送受信機２６に電波の受信を停止させる。これにより、距離測定システム２において測距通信を成立しやすくし、利便性を向上させる。【選択図】図１
DISTANCE MEASURING SYSTEM
To provide a distance measuring system that facilitates establishing distance measurement communication.SOLUTION: In ID verification by an onboard unit 10 and an electronic key 20, a distance measurement unit 4 measures the distance between a vehicle 1 and the electronic key 20 and determines the correctness of ID verification. A plurality of UWB transceivers 16 are mounted in the vehicle 1, forming a plurality of radio wave propagation paths together with the electronic key 20. The operation sequence of the UWB transceivers 16 are determined by a communication control unit 6, and are activated in order. A communication stop part 7 of the electronic key 20 causes a UWB transceiver 26 to stop the reception of a radio wave when distance measurement communication is established by one of the UWB transceivers 16. Thus, it is made easy to establish distance measurement communication in a distance measuring system 2, and to improve convenience.SELECTED DRAWING: Figure 1
【課題】測距通信を成立しやすくする距離測定システムを提供する。【解決手段】車載機１０及び電子キー２０におけるＩＤ照合において、測距部４は、車両１と電子キー２０との距離を測定し、ＩＤ照合の正否を判定する。車両１には、複数のＵＷＢ送受信機１６が配置され、電子キー２０と複数の電波伝搬経路を形成する。ＵＷＢ送受信機１６は、通信制御部６により作動順を決定され、順番に作動させられる。電子キー２０の通信停止部７は、ＵＷＢ送受信機１６のいずれかにより測距通信が成立した場合に、ＵＷＢ送受信機２６に電波の受信を停止させる。これにより、距離測定システム２において測距通信を成立しやすくし、利便性を向上させる。【選択図】図１
DISTANCE MEASURING SYSTEM
距離測定システム
UCHIKI KAZUTERU (author) / IWASHITA AKITOSHI (author) / MORI MEGUMI (author) / KOGA KENICHI (author) / OYA YOSHIYUKI (author) / FURUTA MASATERU (author) / KOSUGI MASANORI (author)
2019-10-03
Patent
Electronic Resource
Japanese
DISTANCE MEASURING SYSTEM, DISTANCE MEASURING DEVICE, AND DISTANCE MEASUREMENT METHOD
| European Patent Office | 2020