Method and system for localization on a DC lighting and power grid
AssigneePhilips Lighting Holding B.V.
InventorsAlan James Davie, Andrew Alexander Takmakoff, Paul Rlchard Simons
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Abstract
The present disclosure is directed to methods and apparatus for locating luminaires within a lighting system where multiple luminaires are located on a grid of DC power rails. The AC signal generator connects to each DC power rail and transmits an AC signal along each DC power rail in turn to luminaires that each compute their distance from the generator based upon the AC signal. The AC signal generator may similarly transmit and receive data communications with luminaires across DC power rails.
Claims14
A method for locating a luminaire on a DC grid, the DC grid comprising a first DC grid power line, an AC signal generator switchably connected to the first DC grid power line, and a first luminaire in electrical communication with the first DC grid power line, the first luminaire disposed along the first DC grid power line at a first distance from the AC signal generator, the method comprising the steps of:
- connecting the AC signal generator to the first DC grid power line;
- transmitting, by the AC signal generator, an AC signal along the first DC grid power line;
- receiving the AC signal by the first luminaire;
- and
- calculating the first distance between the AC signal generator and the first luminaire, based in part upon the AC signal.
Dependencies are inferred from the claim text.