Dewatering control method for eccentricity judgement based on microphone

A control method and microphone technology, applied in the control device of washing machine, washing device, textile and paper making, etc., can solve the problems of high noise, large vibration, low service life of washing machine, etc., to improve safety and service life, reduce vibration and noise effects

Inactive Publication Date: 2019-12-10
CHANGHONG MEILING CO LTD
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a dehydration control method based on microphone judgment of eccentricit

Method used

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] A dehydration control method based on microphone judgment eccentricity, comprising the following steps:

[0024] S1. Start the washing machine, start dehydration, and adjust the clothes;

[0025] S2. When the dehydration speed reaches N0, weigh the clothes, and determine the eccentric noise threshold of the clothes according to the weight range of the clothes;

[0026] S3. Detect whether the dehydration speed reaches N1, if yes, execute step S5, if not, execute step S4;

...

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Abstract

The invention discloses a dewatering control method for eccentricity judgement based on a microphone. The method comprises the following steps that dewatering is started, and clothes are adjusted; when the dewatering rotation speed reaches N0, the clothes are weighed, and according to a clothes weight range, a noise threshold value of eccentricity generation of the clothes is determined; whether or not the dewatering rotation speed reaches a set rotation speed threshold value is detected, if yes, whether or not the volume of noise generated by clothes eccentricity is greater than a set noise volume threshold value is judged, if yes, the speed is increased continuously for dewatering, if not, the above steps are executed again, when the number of accumulated times of exceeding the noise volume threshold value is equal to a preset threshold value, the clothes are directly shaken for loosening, and dewatering is finished. According to the method, by arranging the microphone on a main PCBof a washing machine for monitoring the noise volume of an inner system of the washing machine in the dewatering process in real time, the eccentricity degree of a dewatering cylinder is judged according to the actually-measured noise volume, so that a dewatering control strategy is adjusted in time, vibration and noise are reduced, the safety of the washing machine in a dewatering operation process is improved, and the service life of the washing machine in the dewatering operation process is prolonged.

Description

technical field [0001] The invention belongs to the technical field of drum washing machines, and relates to a dehydration control method based on a microphone to judge eccentricity. Background technique [0002] At present, most of the dehydration control methods of drum washing machines on the market can be roughly divided into two types. One is to judge the eccentricity of the dehydration inner tub through eccentricity detection. Adjust the dehydration strategy according to the eccentricity. The other is to install a 3D sensor on the outer cylinder, judge the vibration amplitude of the outer cylinder through the 3D sensor, and adjust the dehydration strategy according to the measured vibration level. [0003] With the improvement of people's living standards, consumers have higher and higher requirements for the sound quality of washing machines. The traditional dehydration control strategy, simply collecting signals from the motor or obtaining the amplitude signal of t...

Claims

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Application Information

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IPC IPC(8): D06F33/02
Inventor 吴云贵黄峰岭毕飞龙汪文杰王东生
Owner CHANGHONG MEILING CO LTD
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