US 11,994,273 B1
Light fixture with redundancy protection
Yingru Peng, Guangzhou (CN); Weikai Jiang, Guangzhou (CN); Weiliang Chen, Guangzhou (CN); Wenfeng Chen, Guangzhou (CN); and Zhiguang Liang, Guangzhou (CN)
Assigned to GUANGZHOU HAOYANG ELECTRONIC CO., LTD., Guangdong (CN)
Filed by Guangzhou Haoyang Electronic Co., Ltd., Guangzhou (CN)
Filed on Aug. 31, 2023, as Appl. No. 18/240,785.
Claims priority of application No. 202320688894.2 (CN), filed on Mar. 31, 2023.
Int. Cl. F21V 21/108 (2006.01); F21V 14/00 (2018.01); F21V 15/01 (2006.01); F21V 23/00 (2015.01); F21Y 115/30 (2016.01)
CPC F21V 21/108 (2013.01) [F21V 14/006 (2013.01); F21V 15/01 (2013.01); F21V 23/003 (2013.01); F21Y 2115/30 (2016.08)] 12 Claims
OG exemplary drawing
 
1. A light fixture with redundancy protection, comprising
a light head with a light source inside,
a driving mechanism for driving the light head to change a projection direction thereof,
an angle detector for detecting the projection direction of the light head,
an original micro-control unit and a redundancy micro-control unit, both being coupled to a controller,
wherein the original micro-control unit is configured to receive an angle control signal from the controller and forward same to the driving mechanism, the redundancy micro-control unit is configured to receive the angle control signal from the original micro-control unit or the controller, and both the original micro-control unit and the redundancy micro-control unit are connected to the angle detector; and
a safety protection unit coupled to the controller, which is configured to conduct safety protection actions according to a feedback signal from the original micro-control unit or a feedback signal of the redundancy micro-control unit.