Title:
VEHICLE POSITION ESTIMATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/158308
Kind Code:
A1
Abstract:
A vehicle position estimation system, wherein a plurality of onboard communications devices (12) each arranged at different positions in the vehicle determine the position of a mobile terminal relative to the vehicle, by wireless communication with the mobile terminal. Each of the plurality of onboard communications devices can wirelessly communicate with at least two of a plurality of other devices and comprises: a distance index value acquisition unit (S203) that, by causing each set of onboard communications devices that are in a positional relationship whereby wireless communication is possible to perform wireless communications, obtains a distance index value indicating the distance between the onboard communications devices; a normal range storage unit (M1) that stores data indicating a normal range for the distance index value; and a communications device diagnostic unit (F6) that determines whether or not the onboard communications devices are normal. The communications device diagnostic unit determines that no malfunction has occurred in the device being diagnosed, if the distance index value between the device being diagnosed and at least one other device is within the normal range.
Inventors:
SANJI KENICHIRO (JP)
SEKIYA YOUHEI (JP)
SHINODA TAKASHI (JP)
NAKASHIMA KAZUHIRO (JP)
SEKIYA YOUHEI (JP)
SHINODA TAKASHI (JP)
NAKASHIMA KAZUHIRO (JP)
Application Number:
PCT/JP2020/000222
Publication Date:
August 06, 2020
Filing Date:
January 08, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60R25/24; E05B49/00; G01S5/14; G01S7/40; G01S13/78
Domestic Patent References:
| WO2019198331A1 | 2019-10-17 |
Foreign References:
| US20170318423A1 | 2017-11-02 | |||
| JP2004120586A | 2004-04-15 |
Attorney, Agent or Firm:
JIN Shunji (JP)
Download PDF: