公开(公告)号：DE69831164D1

公开(公告)日：2005-09-15

申请号：DE69831164

申请日：1998-09-30

Applicant: ST MICROELECTRONICS SRL

Inventor： BUSACCA SILVIA ,  CUCE ANTONINO ,  CUCUCCIO ANTONINO

IPC: A47L9/19

Abstract: The invention relates to a method and a device for recognising and warning of the level of fullness of a waste container (5) in a suction system driven by a motor (3) and provided with an internal chamber (4) kept under suction pressure and comprising the waste container (5). The method foresees a measurement of the difference of pressure between the internal chamber (4) and the environment outside the vacuum cleaner and an elaboration of such measurement according to a set of rules in fuzzy logic for producing an electric warning signal corresponding to the filling level of the waste container (5).