| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an autonomous type cleaning device, capable of controlling an action mode, a moving pattern, or an action to immediately detect collision of debris on a floor surface as a cleaning object, and respond to detected debris to move the device to a more contaminated area. <P>SOLUTION: By means of a piezoelectric debris sensor which responds to the collision of debris, and related signal processors, the autonomous or non-autonomous cleaning device detects presence of debris, and responds to select an action mode, an action condition, or moving pattern such as spot coverage. A plurality of sensor channels are usable to enable detection or creation of differential right/left debris signals, so that the autonomous device is moved toward the debris. By positioning the debris sensor to a place where debris swept up by a brush assembly is colliding with each other, collision of the debris can be more properly detected. <P>COPYRIGHT: (C)2012,JPO&INPIT |
