很好的图像采集程序，可以从usb接口获取图像并保存为视频-Very good image acquisition process, you can access images from the usb interface and save it as a video

查询usb端口及其状态并获取U盘信息，usb端口状态即时显示，即时显示U盘插拔-Check usb port and its status and access to the U disk, usb port state instant, instant plug U disk