DocumentCode
1630640
Title
Single LED failure detection using I-V characteristic slope in railway signals
Author
Poucha, Jiri
Author_Institution
Appl. Electron. & Telecommun. Dept., Univ. of West Bohemia in Pilsen, Pilsen, Czech Republic
fYear
2013
Firstpage
1
Lastpage
4
Abstract
This paper proposes a method for monitoring proper function of light emitting diodes (LED) in railway optical signals, based on measurement of its I-V characteristics with specific driving of its currrent source. Dual channel redundant monitoring circuit measures and monitors the proper function of LED and its supply converter and and sends the information on its state to the upper level interlocking system.
Keywords
light emitting diodes; power convertors; railway engineering; signalling; I-V characteristic slope; dual channel redundant monitoring circuit; light emitting diode monitoring; railway optical signals; single LED failure detection; supply converter; upper level interlocking system; Current measurement; Equations; Light emitting diodes; Mathematical model; Monitoring; Rail transportation; Voltage measurement; LED lamps; Railway safety; Railway signal;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Electronics (AE), 2013 International Conference on
Conference_Location
Pilsen
ISSN
1803-7232
Print_ISBN
978-80-261-0166-6
Type
conf
Filename
6636518
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