Title:
COMMUNICATION SYSTEM FOR RAIL-GUIDED CARTS
Document Type and Number:
WIPO Patent Application WO/2020/170475
Kind Code:
A1
Abstract:
A communication system for rail-guided carts is a communication system used for rail-guided carts comprising a rail track, one or a plurality of carts traveling on the rail track, and a controller for communicating information with the carts, the communication system being provided with a first communication system for communicating first information from the controller to the carts. The first communication system includes: a first light-emitting element connected to the controller, for outputting the first information as light; an optical fiber arranged along the rail track, having a core which a phosphor or rare earth is added to, and emitting light in the core due to that the light of the first light-emitting element is inputted, the optical fiber leaking the emitted light to the outside; and a first light-receiving element mounted on a cart, for receiving the light leaking from the optical fiber.
Inventors:
ISHIBASHI MASAKAZU (JP)
HARUYAMA SHINICHIRO (JP)
HARUYAMA SHINICHIRO (JP)
Application Number:
PCT/JP2019/031743
Publication Date:
August 27, 2020
Filing Date:
August 09, 2019
Export Citation:
Assignee:
MURATA MACHINERY LTD (JP)
UNIV KEIO (JP)
UNIV KEIO (JP)
International Classes:
H04B10/114; B61B3/02; G02B6/00; H04B10/25
Foreign References:
| JPH07146410A | 1995-06-06 | |||
| JP2017509895A | 2017-04-06 | |||
| JP2017017561A | 2017-01-19 | |||
| JPS6356610A | 1988-03-11 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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