Wireless externally-mounted type automatic key press control device for elevator

the invention discloses a wireless externally-mounted type automatic key press control device for an elevator. The control device comprises a wireless transceiving unit, a control unit and an execution mechanism unit; the control unit is connected to the wireless transceiving unit and the execution mechanism unit; the execution mechanism unit comprises an externally-mounted box, a key assembly, apower supply module, an execution PLC and a voltage conversion module; the voltage conversion module is connected to the power supply module; the key assembly comprises a complex number of keys, and an electromagnet is arranged corresponding to each key; the electromagnets are connected to the voltage conversion module; and the execution PLC is connected to the voltage conversion module. Accordingto the control device, the PLC controls the voltage conversion module according to a control signal of the control unit so as to change the magnetic field directions of the electromagnets, so that the electromagnets can move