DEVICE AND METHOD FOR GOAL DECISION-MAKING BY MEANS OF MAGNETIC FIELDS IN A GOAL SPACE

摘要

The invention relates to a device for generating a magnetic field in a goal space, having at least two coils 100a, 200a disposed parallel to a goal surface defined by a goal 200, wherein a first coil 100a is provided in a region behind the goal 200, and a second coil 200a is identically provided in closer proximity to the goal 200 than the first coil 100a, or is provided with the goal 200, wherein the first coil 100a and the second coil 200a each have a coil impedance, wherein the coil impedance of the second coil 200a is adjusted such that a magnetic field of the second coil 200a generated by a magnetic field of the first coil 100a reduces the magnetic field of the first coil 100a by at least 20% at a point within the second coil 200a.