JPS57194644A - Optical space communicating device against moving body - Google Patents

Optical space communicating device against moving body

Info

Publication number
JPS57194644A
JPS57194644A JP56079667A JP7966781A JPS57194644A JP S57194644 A JPS57194644 A JP S57194644A JP 56079667 A JP56079667 A JP 56079667A JP 7966781 A JP7966781 A JP 7966781A JP S57194644 A JPS57194644 A JP S57194644A
Authority
JP
Japan
Prior art keywords
moving body
signal
disturbance light
communication
switched
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56079667A
Other languages
Japanese (ja)
Other versions
JPS6142979B2 (en
Inventor
Satoshi Koyama
Tsuneto Hirabayashi
Kei Satou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yagi Antenna Co Ltd
Original Assignee
Yagi Antenna Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yagi Antenna Co Ltd filed Critical Yagi Antenna Co Ltd
Priority to JP56079667A priority Critical patent/JPS57194644A/en
Publication of JPS57194644A publication Critical patent/JPS57194644A/en
Publication of JPS6142979B2 publication Critical patent/JPS6142979B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H04B10/22—

Landscapes

  • Optical Communication System (AREA)

Abstract

PURPOSE:To execute an optical space communication without being subjected to a fault of disturbance light, by selectively switching a communication line. CONSTITUTION:In case when disturbance light B has been generated, a communicating signal to a moving body 12 from the ground is switched to the side of a light emitting device 14 by a switching device 26. Subsequently, an optical signal is sent to a photodetector 16 of the moving body 12 from this light emitting device 14, and communication is executed. In the same way, in case when disturbance light C has been generated, said signal is switched to a communication line provided between a light emitting device 13 and a photodetector 15, and communication is executed. At the same time, in the moving body 12 side, too, one of the photodetectors 15, 16 is selectively switched by a switching device 28, and a receiving signal is sent to a receiver 30. Especially, as for sunlight which causes a harmful fault, the time causing the disturbance light B or the disturbance light C is almost definite. Accordingly, by use of timers 27, 29, the signal is selectively switched automatically to a communication line of the side which is not subjected to a fault by a time, for instance, in the morning, in the afternoon, etc.
JP56079667A 1981-05-26 1981-05-26 Optical space communicating device against moving body Granted JPS57194644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56079667A JPS57194644A (en) 1981-05-26 1981-05-26 Optical space communicating device against moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079667A JPS57194644A (en) 1981-05-26 1981-05-26 Optical space communicating device against moving body

Publications (2)

Publication Number Publication Date
JPS57194644A true JPS57194644A (en) 1982-11-30
JPS6142979B2 JPS6142979B2 (en) 1986-09-25

Family

ID=13696518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56079667A Granted JPS57194644A (en) 1981-05-26 1981-05-26 Optical space communicating device against moving body

Country Status (1)

Country Link
JP (1) JPS57194644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105731A (en) * 1982-12-09 1984-06-19 Mitsubishi Electric Corp Communication device of automatic driving truck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105731A (en) * 1982-12-09 1984-06-19 Mitsubishi Electric Corp Communication device of automatic driving truck

Also Published As

Publication number Publication date
JPS6142979B2 (en) 1986-09-25

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