Patent ID: 9655484
Date: 2017-05-23
CPC Classifications: A47L,B62D,F16H,G05D

Claim:
1. An autonomous planar surface cleaning robot, comprising: a main body having a top portion and a bottom portion, the bottom portion defining an outer portion defining a surface area about a perimeter thereof and an inner portion defining a cavity formed within the outer portion; a driving mechanism supported by the main body; a first vacuum source supported by the main body and in fluid communication with the cavity; a second vacuum source supported by the main body and fluidically isolated from the cavity; a vacuum sensor supported by the main body and in fluid communication with the second vacuum source through a fluid channel; and a control unit supported by the main body and electrically coupled to the driving mechanism, the first and second vacuum sources, and the vacuum sensor, wherein the control unit is configured to control the robot to turn direction when the control unit receives a signal from the vacuum sensor indicating that a degree of vacuum pressure within the fluid channel is below a predetermined vacuum pressure.