System and method for monitoring status of a visual signal device
AssigneeGeneral Electric Company
InventorsDavid Davenport, John Hershey, Todd Tolliver
Life of this patent
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AssigneeGeneral Electric Company
InventorsDavid Davenport, John Hershey, Todd Tolliver
Estimating the term…
System and method for monitoring status of a visual signal lamp. The system includes at least one optical fiber comprising a first end and a second end. The first end is positioned proximate to the signal lamp and is oriented to capture a portion of light signal emitted by the signal lamp when the signal lamp is illuminated. The system also includes a photodetector positioned proximate to the second end of the optical fiber and configured to receive the portion of light signal. The system further includes a threshold detection circuitry connected to the photodetector and configured to detect a lighting parameter in relation to the signal lamp according to a predetermined criterion.
A system for monitoring status of a visual signal lamp comprising:
The system according to claim 8, wherein said predetermined range comprises range of wavelength corresponding to at least one selected from the group consisting of red, yellow, green colors, and any combination thereof.
A system for monitoring status of a visual signal lamp comprising:
A visual signal system comprising:
A method for monitoring status of a visual signal lamp comprising:
Dependencies are inferred from the claim text.