JPS57136832A - Light transmission line for train - Google Patents
Light transmission line for trainInfo
- Publication number
- JPS57136832A JPS57136832A JP56021411A JP2141181A JPS57136832A JP S57136832 A JPS57136832 A JP S57136832A JP 56021411 A JP56021411 A JP 56021411A JP 2141181 A JP2141181 A JP 2141181A JP S57136832 A JPS57136832 A JP S57136832A
- Authority
- JP
- Japan
- Prior art keywords
- cars
- signals
- train
- transmission line
- photodetector
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To realize the high-speed transmission of signals wide range between cars of a train with use of light, by carrying out the space transmission for the signals between the cars by means of a light emitting element and a photodetector plus the optical signal. CONSTITUTION:A rail 1, cars 2, a central command device 3, a terminal device 4 which performs the process of information for each car plus signal cables 5 and 6 which connect the devices 3 and 4 in a loop form are provided. A light emitting element 7 is provided at one side of the ends corresponding to each other between the adjacent cars, and a photodetector 8 is provided at the other end respectively. Thus the signals are transmitted in the space between cars by means of the optical signal and through the element 7 and the detector 8. In such a way, the high-speed transmission is possible for signals in a wide range to realize a transmission line suited to enhance the performance of a control system effective on a car.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56021411A JPS57136832A (en) | 1981-02-18 | 1981-02-18 | Light transmission line for train |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56021411A JPS57136832A (en) | 1981-02-18 | 1981-02-18 | Light transmission line for train |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57136832A true JPS57136832A (en) | 1982-08-24 |
Family
ID=12054276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56021411A Pending JPS57136832A (en) | 1981-02-18 | 1981-02-18 | Light transmission line for train |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57136832A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0141196A2 (en) * | 1983-09-13 | 1985-05-15 | Knorr-Bremse Ag | Device for transmitting control information for cars or trains, especially for control signals |
-
1981
- 1981-02-18 JP JP56021411A patent/JPS57136832A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0141196A2 (en) * | 1983-09-13 | 1985-05-15 | Knorr-Bremse Ag | Device for transmitting control information for cars or trains, especially for control signals |
EP0141196A3 (en) * | 1983-09-13 | 1986-02-05 | Knorr-Bremse Ag | Device for transmitting control information for cars or trains, especially for control signals |
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