Abstract:
The invention relates to a system for ball possession detection, comprising a device (130) having means for detecting a magnetic field in a playing device (100) of a ball sport, wherein the magnetic field is generated by at least one permanent magnet (110) in the playing device, wherein the device can be associated with a player of the ball sport, and the means for detecting magnetic fields comprise a magnetic field sensor (210) and a control unit (220), and to a method for ball possession detection, wherein the magnetic field sensor detects a magnetic field (310), the control device measures the magnetic field strength of the detected magnetic field (320), detects whether the magnetic field has been caused by the at least one permanent magnet in the playing device, and outputs information about the detection (350), and to a playing ball (100) comprising at least one permanent magnet.
Abstract:
The invention relates to a shoe comprising at least one pressure sensor provided in the shoe cushioning element, and system components for emitting, receiving and evaluating the signals of the sensor.
Abstract:
The invention relates to a method for deciding whether a mobile object has been taken through a goal (200a, b, c) comprising a goal area defined by said goal, an inner magnetic field (240) being measurable inside said goal area or parallel to said goal area and being larger than an outer magnetic field that extends outside the goal area. The method according to the invention comprises the steps of producing an inner magnetic field (240) inside the goal (200a, b, c), supplying information on a magnetic field the mobile object is subject to and evaluating the information on the magnetic field to give a goal statement based on the detection that the mobile object has passed the inner magnetic field (240).