Power over ethernet lighting system with emergency mode
First Claim
1. A power over ethernet lighting system comprising:
- a power/communication bus;
a plurality of nodes electrically connected to the power/communication bus with a PoE interface, and each of the nodes being electrically connected to a PoE luminaire;
each of the plurality of nodes including the PoE interface, a micro-controller, and a driver electrically connected to the PoE luminaire;
at least one of the nodes is an emergency management node that includes a rechargeable battery and a PoE battery charger, and the micro-controller is electrically connected to the rechargeable battery;
wherein the system has a maintained mode in which the PoE luminaire of each of the nodes, including the emergency management node, is powered by electricity from the power/communication bus as controlled by the respective micro-controller, which is powered by one of the power/communication bus and the rechargeable battery; and
wherein the system has an emergency mode characterized by a power loss on the power/communication bus, and the PoE luminaire of the emergency management node is powered by electricity from the rechargeable battery as controlled by the micro-controller, which is powered by the rechargeable battery.
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Accused Products
Abstract
A power over ethernet lighting system includes a plurality of nodes electrically connected to a power/communication bus. Each of the nodes includes a PoE interface, a micro-controller and a PoE driver electrically connected to a PoE luminaire. At least one of the nodes is an emergency management node that includes a rechargeable battery and a PoE battery charger. The system has a maintained mode in which the PoE luminaire of each of the nodes is powered by electricity from the power/communication bus as controlled by the respective micro-controller, which is powered by one of the bus and the rechargeable battery. The system has an emergency mode characterized by a power loss on the power/communication bus, with the PoE luminaire of the emergency management node powered by the rechargeable battery as controlled by the micro-controller, which is also powered by the rechargeable battery.
9 Citations
20 Claims
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1. A power over ethernet lighting system comprising:
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a power/communication bus; a plurality of nodes electrically connected to the power/communication bus with a PoE interface, and each of the nodes being electrically connected to a PoE luminaire; each of the plurality of nodes including the PoE interface, a micro-controller, and a driver electrically connected to the PoE luminaire; at least one of the nodes is an emergency management node that includes a rechargeable battery and a PoE battery charger, and the micro-controller is electrically connected to the rechargeable battery; wherein the system has a maintained mode in which the PoE luminaire of each of the nodes, including the emergency management node, is powered by electricity from the power/communication bus as controlled by the respective micro-controller, which is powered by one of the power/communication bus and the rechargeable battery; and wherein the system has an emergency mode characterized by a power loss on the power/communication bus, and the PoE luminaire of the emergency management node is powered by electricity from the rechargeable battery as controlled by the micro-controller, which is powered by the rechargeable battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification