Debris sensor for cleaning apparatus

Details Debris sensor for cleaning apparatus Debris sensor for cleaning apparatus

2007-09-24

2008-12-02

Ip, Paul (Department: 2837)

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

C318S568110, C318S568120, C701S023000, C701S028000, C015S319000, C901S001000

Reexamination Certificate

active

07459871

ABSTRACT:
A piezoelectric debris sensor and associated signal processor responsive to debris strikes enable an autonomous or non-autonomous cleaning device to detect the presence of debris and in response, to select a behavioral mode, operational condition or pattern of movement, such as spot coverage or the like. Multiple sensor channels (e.g., left and right) can be used to enable the detection or generation of differential left/right debris signals and thereby enable an autonomous device to steer in the direction of debris.

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