Elevator limiting system and control method and control system thereof

The invention discloses an elevator limiting system and a control method and system thereof. The system comprises a support, a magnetic induction signal processor, a plurality of self-holding magnetic induction switches and a plurality of magnetic induction magnetic strips. Wherein the bracket is used for fixing the plurality of self-holding magnetic induction switches; the self-holding magnetic induction switch is used for inducing with the magnetic induction magnetic strip and generating a first state signal; the magnetic induction signal processor is used for converting the first state signal into a second state signal and sending the second state signal to the elevator control system; and the magnetic induction magnetic strip is used for triggering the self-holding magnetic induction switch. The method comprises the steps that the operation interval of the elevator car is determined according to second state signals of the self-holding magnetic induction switches; and the working mode of the elevator car