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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/088194
Kind Code:
This vehicle-to-vehicle communication device is provided with: a satellite signal reception means for suppressing losses in relative positioning accuracy resulting from a small amount of communication within a time unit; a communication means; a vehicle movement acquisition means; a position measurement means; a host vehicle information storage means; an other vehicle information storage means for recording, for each time unit, satellite information and speed vectors from other vehicles; a relative position calculation means for calculating relative position on the basis of the speed vector of the host vehicle and the speed vectors and satellite information from the other vehicles; a requested satellite number generation means for generating a requested satellite number which notifies other vehicles of a satellite number observed by the host vehicle; and a transmission satellite information generation means for generating, from satellite information which includes the satellite number requested by the other vehicles, information which is generated in an amount that can be contained within the surplus communication amount obtained from the communication means, and which is sequentially transmitted to the other vehicles in a priority order.

BANDOU Mikio (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KAWAMATA Yukihiro (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
MAEKI Akira (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
Publication Date:
May 17, 2018
Filing Date:
October 24, 2017
Export Citation:
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HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
G08G1/09; G01C21/28; G01S19/51
Foreign References:
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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