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:
Jun. 03, 2025
Filed:
Oct. 19, 2020
Beijing Roborock Innovation Technology Co., Ltd., Beijing, CN;
Yanjun Liu, Beijing, CN;
Zhenyu Liang, Beijing, CN;
Chi Zhang, Beijing, CN;
Qiong Du, Beijing, CN;
Yinqi Liu, Beijing, CN;
Lizhi Xiang, Beijing, CN;
Beijing Roborock Innovation Technology Co., Ltd., Beijing, CN;
Abstract
A carpet recognition method for a robot cleaner. The robot cleaner comprises a sleeve and an ultrasonic sensor, wherein the ultrasonic sensor is fixed in the sleeve. The recognition method comprises: controlling the ultrasonic sensor to vertically transmit an ultrasonic signal to the current ground, and to receive an actual echo signal reflected by the current ground; and determining whether the actual echo signal is different from the standard echo signal of the normal ground, and if so, recognizing the current ground as a carpet surface.