Universal synchronous marine navigation light system

Details Universal synchronous marine navigation light system Universal synchronous marine navigation light system

1986-09-08

1988-06-28

Lall, Parshotam S.

Boots, shoes, and leggings

340985, G06K 1500, G08G 700

Patent

active

047544163

ABSTRACT:
Universal synchronous marine navigation light system comprising plural duplex lamp stations. Each duplex lamp station includes a microcomputer, all microcomputers being interconnected by an RS422 communications loop so as to operate all stations in synchronism and in conformance with any existing international standard of operation. Each duplex station comprises a first section having a pair of ac operated lamps and a second section having a pair of lamps one of which is ac operated and the other of which is dc operated. The ac lamps are operated in an on/off flash pattern under normal conditions in "15 mile" or "12 mile standby" modes. If all ac lamps fail, the dc lamp is operated in a "default" flash pattern in a "10 mile" mode.

REFERENCES:
patent: 3393321 (1968-07-01), Frungel
patent: 3781853 (1973-12-01), Jacobs
patent: 3964040 (1976-06-01), Behl
patent: 4024491 (1977-05-01), Pellerin et al.
patent: 4340936 (1982-07-01), Mounce
patent: 4595978 (1986-06-01), Sheffield
patent: 4620190 (1986-10-01), Tigwell et al.
patent: 4647929 (1987-03-01), Jacobs

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