公开(公告)号：US20190243373A1

公开(公告)日：2019-08-08

申请号：US15986781

申请日：2018-05-22

Applicant: IBOT Robotic Co. Ltd.

Inventor： Chia-Jui Kuo ,  Hung-Chou Chen ,  Chun-Chieh Huang

IPC: G05D1/02 ,  A47L9/28 ,  H02J7/00 ,  B25J11/00 ,  B25J9/16 ,  B60L11/18

CPC classification number: G05D1/0225 ,  A47L9/2852 ,  A47L9/2873 ,  A47L2201/022 ,  B25J9/1666 ,  B25J9/1697 ,  B25J11/0085 ,  B60L53/36 ,  G05D1/0231 ,  G05D2201/0215 ,  H02J7/0042 ,  Y10S901/01 ,  Y10S901/09 ,  Y10S901/47

Abstract: An automatic cleaning device including a first light sensor and a controller is provided. The first light sensor is disposed at a side position of a device body. The controller is coupled to the first light sensor. When the controller performs an automatic charging operation, the controller controls the device body of the automatic cleaning device to move forward and determines whether the first light sensor senses a light signal emitted by a light emitter of the charging dock. When the first light sensor senses the light signal, the controller records a first time parameter, and when the first light sensor no longer senses the light signal, the controller records a second time parameter. The controller determines whether to execute a first return mode or a second return mode according to a first time difference between the first time parameter and the second time parameter. In addition, an automatic charging method is also provided.