Washing machine and control method

Abstract

The invention belongs to the field of clothes treatment equipment, and particularly discloses a washing machine and a control method. The washing machine comprises a washing barrel; multiple groups offoreign matter detection devices are mounted on the barrel wall of the washing barrel; each group of foreign matter detection devices at least comprises a terahertz emitting device and a terahertz receiving device; and clothes in the washing barrel are detected through the foreign matter detection devices to determine whether foreign matters exist or not. The multiple groups of foreign matter detection devices are arranged on the washing barrel, and any substance can be detected by adopting a terahertz image technology, so that the accuracy of substance detection is greatly improved, the metal foreign matter and the non-metal foreign matter can be distinguished from the clothes, and the effect of accurately distinguishing the foreign matters is achieved.

Description

technical field [0001] The invention belongs to the field of clothes processing equipment, and in particular relates to a washing machine and a control method. Background technique [0002] With the advancement of science and technology, people's lives are also constantly changing, and in terms of laundry, people have changed from traditional hand washing to current machine washing. Compared with hand washing, machine washing saves time and labor, and saves people's time and cost. However, in the process of machine washing, people will inevitably leave some items on the clothes and enter the washing machine with the clothes. Some fragile and valuable items are likely to be damaged if they are washed in the washing machine, causing property loss, or mixed with some paper or easy-to-fading items and clothes, it is easy to contaminate the clothes. A hidden danger of clothing. [0003] Traditional washing machines do not have the function of foreign object detection, and the c...

AI Technical Summary

Problems solved by technology

[0004] For the washing machine that detects metal substances, the patent No. 201720188261.X discloses a clothes processing equipment and a metal detection device, but this metal detection device can only detect whether there are metal substances in the clothes, and it is easy to attach the clothes themselves The metal substance is detected and alarmed, so that the user gets wrong information

[0005] For washing machines that detect non-metallic substances, the patent No. 201910136642.7 discloses a public use of pulse radar technology to detect non-metallic substances in clothing; this method can only detect non-metallic substances, and cannot detect metal substances. And the clothes themselves are non-metallic substances, so there is a big problem in distinguishing clothes from foreign objects

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