ROADSIDE DEVICE, VEHICLE-MOUNTED EQUIPMENT, ROAD-TO-VEHICLE COMMUNICATION SYSTEM, ROAD-TO-VEHICLE COMMUNICATION METHOD, AND PROGRAM

WIPO Patent Application WO/2019/198142

A1

This roadside device (3) for communicating with vehicle-mounted equipment (2), mounted on a vehicle traveling in a traffic lane, via a roadside antenna (4) installed such that the traffic lane is in the communication range, is provided with: a history reception unit (300) for receiving from the vehicle-mounted equipment (2) both roadside device identification information capable of specifying the roadside device (3) that the vehicle-mounted equipment (2) communicates with, and communication history information, recorded in association with radio wave intensities used in the communication with the roadside device (3); and a connection processing unit (301) which continues the communication with the vehicle-mounted equipment (2) when a first radio wave intensity associated with the roadside device identification information of the own roadside device (3) is the greatest among the plurality of radio wave intensities included in the communication history information, and cuts off the communication with the vehicle-mounted equipment (2) when the first radio wave intensity is less than a second radio wave intensity associated with the roadside device identification information of another roadside device (3).

YAMAGUCHI TAIZO (JP)
IEUJI SAKU (JP)

PCT/JP2018/015028

October 17, 2019

April 10, 2018

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MITSUBISHI HEAVY IND MACH SYSTEMS LTD (JP)

G07B15/00

JP2006319520A	2006-11-24
JP2018056778A	2018-04-05
JP2017103815A	2017-06-08
JP2016134011A	2016-07-25
US20140194093A1	2014-07-10

MATSUNUMA Yasushi et al. (JP)

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