Whether the elevator can run safely depends mainly on three links: production, installation and maintenance, of which maintenance is the most important. The level of operators is also directly related to the quality of elevator maintenance. The following are the technical measures to solve the problem of elevator "cannibalism":

1. It is suggested to add another electrical protection to the elevator brake: when the elevator stops running, the main motor must be "star-sealed" to prevent the elevator from slipping quickly when the braking mechanism fails;

2. The elevator control program shall ensure that the detection of elevator door lock has a process from opening to closing before each quick start. If you don't open the door lock, the elevator can't run, which can prevent the short circuit fault of the door lock and make the elevator run quickly when it is opened.

3. It is forbidden for the maintenance personnel to short-circuit the door lock, and the panic button that is only effective in the maintenance state is added to avoid the short-circuit of the door lock and the safety protection circuit caused by human operation errors in the elevator under normal conditions;

4. When the elevator is in the non-level area, the car door should have a maintaining moment to ensure that the car door cannot be opened by people in the car and prevent the danger of falling into the elevator shaft. When the elevator stops in the non-level area for some reason, it must be leveled slowly and the door can be opened and closed normally before the express train can run.