Title:
POSITION DETERMINATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/112775
Kind Code:
A1
Abstract:
A position determination system 1 equipped with: four or more communicators 10A-10C, 20A-20D which each obtain distance to a portable terminal 3; a position determination unit 31 for determining the position of the portable terminal 3 on the basis of the distances obtained by the four or more communicators 10A-10C, 20A-20D; a region determination unit 32 for determining in which region among a plurality of regions set in the periphery of a vehicle or inside the vehicle compartment the portable terminal 3 is positioned, on the basis of the portable terminal 3 position determined by the position determination unit 31; and a selection unit 33 for selecting three distances from the distances obtained by the four or more communicators 10A-10C, 20A-20D according to the region in which the region determination unit 32 has determined that the portable terminal 3 is positioned. The position determination unit 31 determines the position of the portable terminal 3 on the basis of the three distances selected by the selection unit 33.
Inventors:
YAMAGUCHI KOHEI (JP)
Application Number:
PCT/JP2022/044926
Publication Date:
June 22, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
MINEBEAMITSUMI INC (JP)
International Classes:
G01S5/14; B60R25/24
Foreign References:
| JP2020122725A | 2020-08-13 | |||
| JP2020112521A | 2020-07-27 | |||
| JPH10282204A | 1998-10-23 | |||
| JP2017110373A | 2017-06-22 | |||
| US10257730B1 | 2019-04-09 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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