Title:
POSITION DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/094350
Kind Code:
A1
Abstract:
[Problem] To provide a position detection system capable of accurately detecting the position of a moving body, even when the moving body moves inside a warehouse. [Solution] A position detection system 100 comprises: a plurality of fixed stations 20; and a sensor unit 10 which has an inertia sensor that detects the movement history of a moving body 51 and a range sensor that detects a separation distance between the moving body 51 and the fixed stations 20. The position detection system 100: detects a first arrival position P1 obtained on the basis of the movement history, a second arrival position P2 obtained on the basis of the separation distance, and a relative distance L1 between the first arrival position P1 and the second arrival position P2; and determines the position of the moving body 51 by comparing the relative distance L1 and a range value R1 obtained on the basis of the movement history. The size of the range value R1 varies on the basis of the movement history.
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Inventors:
WAKANA KEIGO (JP)
YAMADA YUKIMITSU (JP)
TAKAI DAISUKE (JP)
YAMADA YUKIMITSU (JP)
TAKAI DAISUKE (JP)
Application Number:
PCT/JP2016/079776
Publication Date:
June 08, 2017
Filing Date:
October 06, 2016
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
International Classes:
G01C21/14; G01S5/02; G01S5/14
Foreign References:
| JPS646721A | 1989-01-11 | |||
| JP2015135249A | 2015-07-27 | |||
| JPH01312410A | 1989-12-18 |
Other References:
See also references of EP 3385744A4
Attorney, Agent or Firm:
NOZAKI, Teruo (JP)
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