| 摘要 |
PROBLEM TO BE SOLVED: To suppress the low frequency vibration of an elevator car in a space- saving type large capacity elevator system by receiving the output information of a movement information sensor set in the elevator car to operate and control the elevator car. SOLUTION: The movement information of pulse level from a pulse generator 19 for detecting the movement information of a car 8 by the friction drive between a pulse generator 18 as a sensor directly connected to a turning pulley 11, which generates a pulse according to the movement of the car 8 and a guide rail or exclusive opposed substance 20 opposed thereto through a roller is converted into the moving distance, moving speed and moving acceleration of the car 8 in an arithmetic device 22, and they are serially or parallelly transferred from a transfer device 23 to a control device 21 through a transfer passage 24. Further, the speed information of the car 8 and the rotating speed and speed difference information are calculated in adding point, the information forming the base of the vibration information of the car 8 is taken out and converted into the vibration suppressing component of the car 8 by a waveform processing device, and the resulting signal is inputted to the inside of a main loop to suppress the vibration of the car 8. |
