Mining all-digital stroke sensor device

The utility model discloses a mining all-digital stroke sensor device which comprises a pipe body, the pipe body is of a long and thin straight pipe structure, a long-strip-shaped PCB is inserted and fixed into the pipe body, and the pipe body is sleeved with a magnetic ring. A resistor column and an all-pole magnetic switch column are regularly and densely arranged on the PCB in the axial direction, one end of the PCB is connected with a connecting copper head through a cable, and the connecting copper head is provided with a four-core plug. The pipe body is installed in the pushing jack, one end of the pipe body is fixed to the cylinder bottom of the pushing jack, the pipe body penetrates into a long hole in the center of the piston rod, and the magnetic ring is nested on the pipe body, fixed to the piston rod, connected with a hydraulic support controller through a four-core plug and in communication connection with the hydraulic support controller through a CAN bus. The TMR all-pole type magnetic switch s