The present disclosure provides a magnetic field communication ground power system of an electric vehicle, the system includes a reflux rail and multi-segment conductive rail mounted on a ground. The electric vehicle runs through the reflux rail, and receives electric power from the conductive rail through conductive boots so as to drive the electric vehicle to move. The system further includes: a plurality of driving positive electrodes configured to connected to the conductive rail; at least one electromagnetic controlling system configured to turn on or turn off the driving positive electrodes; a plurality of magnetic controlling systems configured to collect a position of the electric vehicle on the reflux rail, wherein the magnetic controlling systems transmit the sampled position of the electric vehicle to the electromagnetic controlling system, and the electromagnetic controlling system turns on or turns off voltage of the driving positive electrodes.

The present disclosure provides a magnetic field communication ground power system of an electric vehicle, the system includes a reflux rail and multi-segment conductive rail mounted on a ground. The electric vehicle runs through the reflux rail, and receives electric power from the conductive rail through conductive boots so as to drive the electric vehicle to move. The system further includes: a plurality of driving positive electrodes configured to connected to the conductive rail; at least one electromagnetic controlling system configured to turn on or turn off the driving positive electrodes; a plurality of magnetic controlling systems configured to collect a position of the electric vehicle on the reflux rail, wherein the magnetic controlling systems transmit the sampled position of the electric vehicle to the electromagnetic controlling system, and the electromagnetic controlling system turns on or turns off voltage of the driving positive electrodes.

Self-insulated power supply line for vehicles in which a magnetically attractable flexible belt element housed in an insulating casing provides in sequence the power supply to a plurality of conducting elements spaced from one another and external to the casing. A detector circuit is provided adapted to measure the dispersion current which flows between the live conducting element and conducting elements adjacent to it in the case of poor insulation conditions of the road surface.