| 摘要 |
A ball game camera speed measuring machine (100) comprises: a PCB board (21), a speed measuring unit (22), a camera unit (23), a memory card (24), a display panel (25), a loudspeaker (26), a power source (27), an start/stop signal receiving unit (28) configured to receive a start/stop signal, and a communication transmission unit (29) configured to transmit outbound a video signal and a speed signal. The PCB board (21) is separately connected to the start/stop signal receiving unit (28), the speed measuring unit (22), the camera unit (23), the memory card (24), the display panel (25), the loudspeaker (26) and the communication transmission unit (29). The power source (27) supplies power to the loudspeaker (26), the PCB board (21), the speed measuring unit (22) and the camera unit (23). The camera speed measuring machine (100) simultaneously displays in real time a ball speed on a dynamic video. |
