Method for e.g. controlling contact-sensitive lines in tennis court during normal tournament, involves displaying achieved points, backlashes and sets by analog/digital signals or electronic signals in laptop of umpire and display board

摘要

The method involves equipping a contact-sensitive layer in tennis lines and net webbings, and emitting a signal by the layer when a ball contacts the lines and/or the webbings, where the layer is made of PVC. The signal is detected by a signal box, and the signal is displayed in a laptop of an umpire over a programmable logic controller (PLC). Achieved points, backlashes, sets and overall victory are displayed by analog/digital signals or light-, radio- and electronic signals in the laptop and a display board. The layer is produced by radio frequency identification (RFID) technology.