Title:
OPTICAL DATA TRANSMISSION DEVICE, OPTICAL COMMUNICATION DEVICE, AND AUTOMATIC CONVEYANCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/002431
Kind Code:
A1
Abstract:
Reliable data transmission is secured without inviting large design changes by means of configuring the disclosed optical data transmission device (100) in a manner so as to be provided with: data conversion units (210, 310) and optical communication control units (220, 320) that transmit to each of a first communication unit (200) and a second communication unit (300) disposed movably relative to one another an optical signal modulated in response to wired data input from a wired line (13a), and that output wired data demodulated from the received optical signal to the wired line; a bit data input unit (240) that receives input of bit data for emergency stops; a bit data output unit (340) that outputs bit data for emergency stops; and bit data communication control units (250, 350) that control in a manner so as to transmit/receive input bit data via the optical communication control units (220, 320) using optical signals that are isolated from the optical signal corresponding to the wired data.
Inventors:
HINO, Masanori (LTD. 2-2-5 Tokiwamachi, Chuo-ku, Osaka-sh, Osaka 28, 〒5400028, JP)
日野 政典 (〒28 大阪府大阪市中央区常盤町二丁目2番5号北陽電機株式会社内 Osaka, 〒5400028, JP)
日野 政典 (〒28 大阪府大阪市中央区常盤町二丁目2番5号北陽電機株式会社内 Osaka, 〒5400028, JP)
Application Number:
JP2011/064907
Publication Date:
January 05, 2012
Filing Date:
June 29, 2011
Export Citation:
Assignee:
HOKUYO AUTOMATIC CO., LTD. (2-2-5, Tokiwamachi Chuo-ku, Osaka-sh, Osaka 28, 〒5400028, JP)
北陽電機株式会社 (〒28 大阪府大阪市中央区常盤町二丁目2番5号 Osaka, 〒5400028, JP)
HINO, Masanori (LTD. 2-2-5 Tokiwamachi, Chuo-ku, Osaka-sh, Osaka 28, 〒5400028, JP)
北陽電機株式会社 (〒28 大阪府大阪市中央区常盤町二丁目2番5号 Osaka, 〒5400028, JP)
HINO, Masanori (LTD. 2-2-5 Tokiwamachi, Chuo-ku, Osaka-sh, Osaka 28, 〒5400028, JP)
International Classes:
H04L29/08; B66C13/22; B66C15/00; G05D1/02; H04B10/02; H04B10/10; H04B10/105; H04B10/22
Attorney, Agent or Firm:
HASHIMOTO, Kaoru (Sparkle Patent Office, Higobashi IP Bldg. 6F 1-18-35, Edobori, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
Claims:
