A self-monitoring LED marine navigation light that monitors LED intensity and if the intensity is not COLREG compliant, a microprocessor in the light simulates an open filament just as would an incandescent light, thus allowing the analog ships alarm panel circuit to trigger an alarm. The device generally comprises a base, a lens mounted to the base, and an LED module seated in the base and enclosed by the lens. The LED module includes primary and optional secondary LED lights plus one or more photodiode(s) exposed to the LED light(s). The LED also includes a processor and software for measuring light intensity input to the photodiode(s), comparing measured intensity to a minimum COLREG threshold, and signaling failure when measured intensity falls below said minimum threshold.
Self-monitoring marine navigation light
2020-03-31
Patent
Electronic Resource
English
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / H05B ELECTRIC HEATING , Elektrische Heizung |
MARINE NAVIGATION SUPPORT DEVICE, MARINE NAVIGATION SUPPORT METHOD, PROGRAM
European Patent Office | 2023
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