Passenger elevator with automatic silencing lift car

• Main Authors: TIAN MAOJUN, JIN TING, ZHU HAOJIE, TANG FANGPING, ZHU GUOJIAN, GONG XIAOBING, HUANG XUBIN, XIE FEI, SHANG QINGYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2022
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ELEVATORS; ESCALATORS OR MOVING WALKWAYS; HAULING; HOISTING; LIFTING; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PERFORMING OPERATIONS; PHYSICS; SOUND-PRODUCING DEVICES; TRANSPORTING

The invention discloses a passenger elevator with an automatic silencing car, which overcomes the problems that the silencing effect of an elevator silencing device in the prior art is influenced by time, and whether the silencing device fails or not cannot be detected, and comprises a noise acquisition device, a control system, an automatic silencing device, a control system and an automatic silencing device, and is characterized in that the noise acquisition device is used for acquiring a sound signal of elevator noise and sending the sound signal to the control system; the control system is used for carrying out frequency domain transformation on the collected sound signal of the elevator noise to obtain the elevator noise frequency, sending a control signal to the silencing device and judging whether the silencing device breaks down or not; the silencing device is used for receiving the control signal sent by the control system, sending out silencing frequency, counteracting noise frequency and realizing