公开(公告)号：US20250083901A1

公开(公告)日：2025-03-13

申请号：US18882170

申请日：2024-09-11

Applicant: Otis Elevator Company

Inventor： Fengkun Zhu ,  Hongliang Wu ,  James Hubbard

IPC: B65G43/06 ,  G01N27/04 ,  G01R19/165

Abstract: A system for detecting a state of a brake of a conveying device. The system includes a resistance detection component for detecting a resistance of the brake; a voltage acquisition component for acquiring a pick voltage of the brake; a memory for storing instructions; and a processor configured to execute the instructions. When executing the instructions, the processor calculates a temperature of the brake based on an initial resistance of the brake and the resistance of the brake detected by the resistance detection circuit; determines the state of the brake based on the temperature calculated and the picks voltage acquired by the voltage acquisition component, and generates a signal indicating the state.