USB camera acquisition method based on mobile device having Android system

With the increasingly-wide application of an Android operation system to a mobile device, such as a smart phone and a tablet personal computer, video acquisition becomes a hot issue increasingly focused by people; and some Android devices, such as a set top box, have no camera acquisition devices, and sometimes, two cameras of the mobile phone or the tablet do not meet requirements in some industries, so that people hope that the mobile phone or the tablet can be connected with a third-party camera to realize video acquisition. The invention discloses a USB camera acquisition method based on the mobile device having the Android system. The method can realize that the Android device (the mobile phone or the tablet) is connected with the third-party camera for collecting, thereby meeting video acquisition requirements in video monitoring industry or other industries. 随着安卓(Android) 操作系统在移动设备，如智能手机和平板电脑上的应用日益广泛，视频采集也日益成为人们关注的热点。有些Android设备本身不具有摄像采集设备，如机顶盒，而有些时候手机平板本身的两个摄像头并不能满足某些行业的需求，人们更希望手机或平板能接入第三方摄像头实现视频采集。本发