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US 11,663,934 B2Granted
LED sign system with redundant controller
AssigneeLedstar Inc.
InventorsMilan Patel, Andrey Burak, Bin Luo
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Abstract
The present invention relates generally to an LED sign system use on roadways, and more particularly to a LED sign system for use on roadways with a redundant controller.
Claims5
An LED sign system, comprising:
- a plurality of LED signs, each LED sign coupled to a separate respective LED sign controller;
- a communication switch, the communication switch coupled to each of the respective LED sign controllers;
- and
- a redundant sign controller, the redundant sign controller coupled to the communication switch and to each of the respective LED sign controllers, and to a second communication switch, the second communication switch coupled to each of the LED signs via a separate connection from the respective LED sign controllers,
- wherein the redundant sign controller is operative to take over from any one of the respective LED sign controllers in event of an operational failure of any one of the respective LED sign controllers.
2 more elements
Dependencies are inferred from the claim text.