SYSTEM FOR DETECTING BALL IMPACTS ON TENNIS COURTS AND THE LIKE

摘要

Detection System bullet holes on the tennis courts and others, so as to decide if the impact of the bullet was held on the line or outside. According to the invention, a shock sound collecting device in the form of a resonance box (1) is embedded in the surface of the court. In this resonance box (1), a microphone (2) passing the sound shock in the form of an electric signal to a signal processing unit (6) which eliminates the electrical signals not originating with bullets . The signals which are not eliminated and thus come from bullet impacts are sent to the signal transmission means (8, 9).