| 摘要 |
A projector for a squash is provided to project a video or an image on three walls by the projector lens of an LCD(Liquid Crystal Display) projection device and output sound through a speaker if the position of a squash ball is tracked by three sensors, thereby raising interest in indoor exercise to enable users to practice exercise in life. A projector for a squash comprises three sensors(110a,110b,110c), three projection devices(112a,112b,112c), a CPU(Central Processing Unit)(120), a speaker(130), and a memory(140). If the position of a squash ball is detected by the three sensors, the CPU loads various multimedia contents stored in the memory and displays the images of the squash ball or outputs sound through the speaker in correspondence to the detected position of the squash ball. Data detected by the three sensors is transmitted to the CPU. The CPU receives and analyzes the detected data to recognize the position of the squash ball.
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