Patent ID: 11890519
Assignee: NATIONAL TSING HUA UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. An apparatus for impact position detection of impact sport equipment, the apparatus comprising:
a data retrieving apparatus, connected to a vibration sensor mounted on impact sport equipment, the vibration sensor detecting a vibration of the impact sport equipment to generate a vibration signal;
a storage apparatus, storing multiple learning parameters of a prediction model established in advance by using machine learning, wherein the prediction model is trained by using characteristic information of multiple vibration signals and corresponding impact positions, wherein the impact position is a position where the impact of the impact sport equipment and a ball occurs; and
a processor, coupled to the data retrieving apparatus and the storage apparatus and configured to:
retrieve, by the data retrieving apparatus, the vibration signal generated by the vibration sensor detecting the vibration generated by impact of impact sport equipment and the ball;
perform a spectrum analysis on the vibration signal to obtain a plurality of eigenfrequencies of the vibration signal in a frequency domain; and
calculate at least one piece of characteristic information by using an amplitude of each of the eigenfrequencies and inputting the same into the prediction model, so as to estimate an impact position of the ball on the impact sport equipment.