电梯产品日新月异,电梯数量日益增长,电梯的安全运行已成为人们生活中极为关注的1个焦点。为保证电梯的安全可靠运行,在电梯上已设置了多种的机械和电气保护装置。但是,电梯是一种机电一体化的设备,在其运行过程中发生故障仍是不可避免的,一旦发生电梯故障,通常引发乘客困梯现象。为能在尽可能短的时间内疏散被困乘客,应合理设计与应用电梯的紧急操作 Elevator products with each passing day, the increasing number of elevators, the safe operation of elevators has become a focus of great concern in people’s life. In order to ensure the safe and reliable operation of the elevator, a variety of mechanical and electrical protection devices have been installed on the elevator. However, the elevator is a kind of mechatronic device, and it is still inevitable that a fault occurs during its operation. In the event of an elevator failure, it usually causes a passenger ladder phenomenon. In order to be able to evacuate trapped passengers in the shortest possible time, the elevator should be designed and applied urgently