Signal lamp, system and control method

• Main Authors: HUANG QUANWEI, HAN LUJIE, ZHANG FUSONG, WANG DINGYU, SUN ZHENYU, XING QI, LIU ZHEN, SUN GUOYING, LIU PEI, JIANG XIAOJUN
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: ENSURING THE SAFETY OF RAILWAY TRAFFIC; GUIDING RAILWAY TRAFFIC; PERFORMING OPERATIONS; RAILWAYS; TRANSPORTING

The invention discloses a signal lamp, the signal lamp comprises a lighting circuit and a light emitting mechanism, the light emitting mechanism comprises a plurality of groups of LED lamp panels connected in parallel, and the lighting circuit comprises an AC side main circuit, a DC side main circuit and a control unit; on the other hand, the invention further provides a signal lamp system, the signal lamp system comprises the signal lamp, and the signal lamp system further comprises a lighting control circuit and a power source. By improving the circuit topology, the main circuit at the lamp end can be safely cut off to turn off the lamp. Through improvement, voltage and current detection is carried out on each string of lamp beads of the LED lamp panel, the operation condition of each string of lamp beads can be reflected, and when 30% and 50% of the lamp beads are damaged, communication is carried out in a carrier wave mode through the main power supply loop (no new connecting line is added), and state inf