为虚拟管家系统设计一个麦克风阵列接口，该接口用于接收语音信号作为命令，由麦克风接收识别后用来控制虚拟管家，进而控制各种家用电器工作。当用户移动时，该接口可以跟踪定位用户（此应用中只需知道用户方向角，也是一维定位），即可随时响应用户的控制命令-Housekeeper system for the design of a virtual microphone array interface, the interface for receiving voice signal as a command, from the microphone after receiving recognition used to control a virtual butler, thereby control the various kinds of electrical work. When the user moves, the interface positioning to track users (this application only need to know the user direction angle, but also one-dimensional positioning), at any time in response to the user' s control commands