Elevator button triggered based on magnetic field change judgment

The utility model relates to the technical field of magnetic field buttons, in particular to an elevator button triggered based on magnetic field change judgment, which comprises an elevator button plate, an elevator display screen is fixedly mounted on the surface of the upper end of the elevator button plate, and elevator button keys are fixedly mounted on the upper surface of the middle end of the elevator button plate. An insulator is fixedly installed on the lower surface of the interior of the elevator button key, an upper conductive block is fixedly installed on the lower surface of the elevator button key, a lower conductive block is arranged at the lower end of the upper conductive block, a resistor is connected to the surface of one side of the upper conductive block through a wire, and a power source is connected to the surface of one side of the resistor through a wire. A magnetic field intensity sensor is arranged on the surface of the lower end of the elevator button plate, a processor is connec