| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electric wheelchair which is controlled by accurately hearing voice for operation which is output by a user, even in noise environment. <P>SOLUTION: The electric wheel chair includes: a voice input means with a voice receiving means which is constituted by arranging a plurality of microphone arrays 30a and 30b while separating them from each other, the microphone arrays including the optional number of microphones for receiving multiple user's voice through multiple channels; a voice output position estimation means which estimates a user's voice output position by a MUSIC method based on a multi-channel voice data which is received by the voice receiving means arranged in an optional position in 3-dimensional space, and which outputs a voice output position estimation signal; and a control means for controlling a driving source for wheels 35a, 35b and 36b based on the voice output position estimation signal. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
