Title:
LIGHT TRANSMITTING/RECEIVING DEVICE, COMMUNICATION SYSTEM, LIGHT TRANSMITTING/RECEIVING METHOD, AND AUTONOMOUS DRIVING VEHICLE PARKING LOT
Document Type and Number:
WIPO Patent Application WO/2018/021487
Kind Code:
A1
Abstract:
Provided is light communication technology for an autonomous driving vehicle that, while having a simple structure, is capable not only of transmitting and receiving omnidirectionally in relation to an unspecified vehicle, but also of one-to-one communication with a specified vehicle by specifying the transmission source direction with high precision, and does not cause a blind spot to occur when transmitting and receiving light signals. A light transmitting/receiving device is provided with a light-emitting unit provided with one or a plurality of light-emitting elements, a light-receiving unit provided with one or a plurality of light-receiving elements, and an omnidirectional-type optical component. The light transmitting/receiving device is configured so that the light axis when light signals emitted from the light-emitting unit impinge on the omnidirectional-type optical component, and the light axis when the light signals that impinged on the omnidirectional-type optical component transmitted from another vehicle are radiated from the omnidirectional-type optical component, are made to be coaxial, and is configured so that while omnidirectional transmitting and receiving is performed to an unspecified vehicle through the omnidirectional-type optical component, it is possible to perform one-to-one communication with another specified vehicle through the omnidirectional-type optical component.
Inventors:
HONDA KENICHI (JP)
Application Number:
PCT/JP2017/027281
Publication Date:
February 01, 2018
Filing Date:
July 27, 2017
Export Citation:
Assignee:
TATEYAMA KAGAKU IND CO LTD (JP)
International Classes:
G08G1/09; G01S1/70; G01S3/783; H04B10/114
Foreign References:
| JP2007140674A | 2007-06-07 | |||
| JP2013131065A | 2013-07-04 | |||
| JP2015225558A | 2015-12-14 | |||
| JP2008026236A | 2008-02-07 | |||
| JP2012080477A | 2012-04-19 | |||
| JP2013229799A | 2013-11-07 | |||
| JP2000010002A | 2000-01-14 | |||
| JP2001033848A | 2001-02-09 | |||
| JP2016007920A | 2016-01-18 |
Attorney, Agent or Firm:
JODAI, Tetsuji et al. (JP)
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