The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Dec. 29, 2009
Yu-liang Chung, Taipei, TW;
Chun-hsien Liu, Taipei, TW;
Chun-chieh Wang, Taipei County, TW;
Long-der Chen, Hsinchu, TW;
Chen Meng-chun, Tainan County, TW;
Chun-sheng Wang, Nantou County, TW;
Yu-Liang Chung, Taipei, TW;
Chun-Hsien Liu, Taipei, TW;
Chun-Chieh Wang, Taipei County, TW;
Long-Der Chen, Hsinchu, TW;
Chen Meng-Chun, Tainan County, TW;
Chun-Sheng Wang, Nantou County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method for controlling a cleaning device is presented, which includes the following steps. A cleaning device includes a control unit, a fan module, an optical emitter, and an optical sensor. The optical emitter and the optical sensor are located in an air inlet of the fan module. The control unit is preset with a first impedance value (Z1), a second impedance value (Z2), and a threshold, where 0<Z1<Z2. Then, the control unit reads an impedance value (Z) of the fan module. If Z1<Z<Z2, the control unit drives the fan module. If Z2<Z, the control unit reads a detected value of the optical sensor. If the detected value exceeds the threshold, the control unit drives the fan module, so as to increase a suction force of the fan module. If the detected value is smaller than the threshold, the control unit turns off the fan module.