Title:
SIGNAL LIGHT, SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/126029
Kind Code:
A2
Abstract:
Disclosed in the present invention is a signal light. The signal light comprises a lighting circuit and a light-emitting mechanism. The light-emitting mechanism comprises a plurality of LED light panels connected in parallel. The lighting circuit comprises: an alternating-current-side main circuit, a direct-current-side main circuit, and a control unit. In addition, further provided in the invention is a signal light system. The signal light system comprises said signal light. The signal light system further comprises a lighting control circuit and a power supply. In the present invention, by improving the circuit topology, a light end main circuit can be safely cut off to turn off the light. By means of the improvement in the present invention, voltage and current detection is carried out on each string of lamp beads of the LED light panel, and the operation condition of each string of lamp beads can be reflected. When 30% and 50% of the lamp beads are damaged, communication is carried out in a carrier mode (without adding a new connecting line) by means of the main power supply loop, and the state information of the LED light panel is sent to the lighting control circuit.
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Inventors:
ZHANG FUSONG (CN)
LIU ZHEN (CN)
SUN GUOYING (CN)
LIU PEI (CN)
JIANG XIAOJUN (CN)
XING QI (CN)
SUN ZHENYU (CN)
HAN LUJIE (CN)
WANG DINGYU (CN)
HUANG QUANWEI (CN)
LIU ZHEN (CN)
SUN GUOYING (CN)
LIU PEI (CN)
JIANG XIAOJUN (CN)
XING QI (CN)
SUN ZHENYU (CN)
HAN LUJIE (CN)
WANG DINGYU (CN)
HUANG QUANWEI (CN)
Application Number:
PCT/CN2023/079103
Publication Date:
July 06, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD (CN)
International Classes:
B61L5/18
Attorney, Agent or Firm:
BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)
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