CLEANING APPARATUS AND DETECTING METHOD THEREOF
First Claim
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1. A cleaning apparatus, comprising:
- a fan;
a motor for driving the fan to create an air flow through the cleaning apparatus;
a detecting device electrically connected to the motor to detect an impedance of the motor; and
a control unit electrically connected to the detecting device, for comparing the impedance of the motor with a predetermined value and outputting a signal indicative of a comparison result.
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Abstract
The disclosure provides a cleaning apparatus and detecting method thereof. The cleaning apparatus includes a fan, a motor, a detecting device and a control unit. The motor drives the fan to create an air flow through the cleaning apparatus. The detecting device is electrically connected to the motor, and is utilized detected an impedance of the motor. The control unit is electrically connected to the motor and the detecting device respectively, for comparing the impedance of the motor with a predetermined value and outputting a signal indicative of a comparison result.
64 Citations
21 Claims
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1. A cleaning apparatus, comprising:
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a fan; a motor for driving the fan to create an air flow through the cleaning apparatus; a detecting device electrically connected to the motor to detect an impedance of the motor; and a control unit electrically connected to the detecting device, for comparing the impedance of the motor with a predetermined value and outputting a signal indicative of a comparison result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for debris detection in a cleaning apparatus, said method comprising:
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measuring an impedance of a motor of a fan of the cleaning apparatus; determining a level of debris accumulation in the cleaning apparatus based on the impedance of the motor; and issuing a signal indicative of the level of debris accumulation exceeding a predetermined value. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A cleaning apparatus, comprising:
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a housing having an inlet; a fan within the housing for creating an air flow into the housing through the inlet; at least one optical sensor disposed in the inlet of the housing to determined a dust covered surface area of a sensing surface of the at least one optical sensor; and a blowing device for directing exhaust air of the fan to the sensing surface of the at least one optical sensor to blow debris off said sensing surface.
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Specification