Title:
LIQUID-LEVEL DETECTION METHOD FOR WASHING MACHINE, AND WASHING MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/020181
Kind Code:
A1
Abstract:
Disclosed in the present invention is a liquid-level detection method for a washing machine. A 3D image recognition unit is arranged at the top of the washing machine. The method comprises: starting the inflow of water for a washing machine; starting a 3D image recognition unit, and performing photographing and analysis to obtain a first distance h1 between the 3D image recognition unit and the liquid level in a washing drum; and calling a second distance h2 between the 3D image recognition unit and the bottom of the washing drum, and obtaining the current actual water level height in the washing drum according to the difference between the second distance h2 and the first distance h1. Further disclosed in the present invention is a washing machine using the liquid-level detection method. The washing machine uses a 3D image recognition unit to photograph the inside of a washing drum, so as to acquire the water level height in the washing drum. By means of the method, the actual water level height in a washing drum can be precisely measured in real time, so as to ensure that the actual water inflow amount can reach a target water inflow amount to guarantee the washing effect of laundry, and realize the automatic and precise control over the inflow of water for a washing machine, thereby improving the usage experience of a user.
Inventors:
ZHAO ZHIQIANG (CN)
XU SHENG (CN)
LV PEISHI (CN)
XU SHENG (CN)
LV PEISHI (CN)
Application Number:
PCT/CN2022/106666
Publication Date:
February 23, 2023
Filing Date:
July 20, 2022
Export Citation:
Assignee:
QINGDAO HAIER LAUNDRY ELECTRIC APPLIANCES CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
D06F33/34
Foreign References:
| CN112144245A | 2020-12-29 | |||
| CN108921883A | 2018-11-30 | |||
| CN110541284A | 2019-12-06 | |||
| CN111945365A | 2020-11-17 | |||
| CN112746438A | 2021-05-04 | |||
| CN112663277A | 2021-04-16 | |||
| CN108427940A | 2018-08-21 | |||
| CN112127092A | 2020-12-25 | |||
| CN111455616A | 2020-07-28 | |||
| US20210025104A1 | 2021-01-28 |
Attorney, Agent or Firm:
BEIJING YUANZHONG INTELLECTUAL PROPERTY AGENT LTD. (CN)
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