SYSTEM AND METHOD FOR EMERGENCY LIGHTING
First Claim
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1. A lighting network comprising:
- a plurality of lighting units that can operate on AC power and DC power if the AC power is removed,at least one controller arranged to redistribute the DC power between the plurality of lighting units,an AC power monitoring unit arranged to detect the presence or absence of the AC power; and
a master controller arranged to form a DC power distribution path, wherein the master controller further identifies an availability of the DC power in each of the plurality of lighting units and adjusts the redistribution of the DC power to extend a light availability in at least one of the plurality of lighting units.
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Abstract
A lighting network (100) and methods therefore are disclosed. The lighting network (100) a plurality of lighting units (10) that can operate on AC power and DC back up power if the AC power is removed. A controller (15) is used to redistribute the DC power between the plurality of lighting units (10) in the event that DC power is low or exhausted in one of the plurality of lighting units (10).
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Citations
20 Claims
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1. A lighting network comprising:
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a plurality of lighting units that can operate on AC power and DC power if the AC power is removed, at least one controller arranged to redistribute the DC power between the plurality of lighting units, an AC power monitoring unit arranged to detect the presence or absence of the AC power; and a master controller arranged to form a DC power distribution path, wherein the master controller further identifies an availability of the DC power in each of the plurality of lighting units and adjusts the redistribution of the DC power to extend a light availability in at least one of the plurality of lighting units. - View Dependent Claims (3, 5, 6, 7, 8)
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2. (canceled)
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4. (canceled)
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9. (canceled)
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10. (canceled)
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11. (canceled)
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12. (canceled)
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13. A lighting unit comprising:
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a lighting emitting unit; a driver coupled to the lighting emitting unit; an AC/DC converter arranged to supply power to the driver; a DC battery unit, coupled to the driver, arranged to supply power to the driver if the AC/DC converter cannot supply the power to the driver; and a controller arranged to request additional power if the power from the DC battery unit is running low. - View Dependent Claims (14, 15, 16, 17)
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18. (canceled)
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19. (canceled)
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20. (canceled)
Specification