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METHOD FOR CONTROLLING CLEANING DEVICE

  • US 20110115638A1
  • Filed: 12/29/2009
  • Published: 05/19/2011
  • Est. Priority Date: 11/16/2009
  • Status: Active Grant
First Claim
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1. A method for controlling a cleaning device, comprising:

  • providing a cleaning device, comprising a control unit, a fan module, an optical emitter, and an optical sensor, wherein the fan module and the optical sensor are respectively electrically connected to the control unit, the optical emitter and the optical sensor are located in an air inlet of the fan module, the optical sensor receives a light ray emitted by the optical emitter and detects an intensity of the received light ray, and the control unit is preset with a first impedance value (Z1), a second impedance value (Z2), and a threshold, where 0<

    Z1<

    Z2; and

    reading an impedance value (Z) of the fan module by the control unit, and comparing the impedance value with the first impedance value and the second impedance value, whereinif Z1<

    Z<

    Z2, the control unit drives the fan module to generate a first pressure difference; and

    if Z2<

    Z, the control unit reads the intensity of the received light ray detected by the optical sensor, if the light ray intensity exceeds the threshold, the control unit drives the fan module to generate a second pressure difference, and the second pressure difference is greater than the first pressure difference, while if the light ray intensity is smaller than the threshold, the control unit turns off the fan module.

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