| 摘要 |
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. |
