Magnetic memory detection device and method for positions of embedded steel bars of concrete pole

The invention discloses a concrete pole embedded steel bar position magnetic memory detection device and method, and the device comprises a pole longitudinal lifting and annular scanning unit, a magnetic signal obtaining unit, a walking distance obtaining unit, and a pole longitudinal lifting and annular scanning unit. The magnetic signal obtaining unit comprises three magnetic signal collectors. The support is arranged on the device body in parallel in a vertically downward manner; the walking distance acquisition unit comprises four wheels and a high-precision length measuring encoder; the magnetic signal control processing display unit comprises a display screen and a control button, supports setting of a standard curve, compares a detection curve with the standard curve, carries out deviation analysis, reminds when abnormity occurs, and outputs a detection result, so that nondestructive detection of in-service concrete pole steel bar position parameters can be realized; automatic alarm of an abnormal stat