Method for detecting displacement data of washing machine

A technology of washing machine and data, which is applied in the control device of washing machine, washing device, textile and paper making, etc. It can solve the problems of high cost, affecting user experience, insufficient technical precision and stability, etc., to reduce cost, improve stability, Growth Lifecycle Effects

Inactive Publication Date: 2019-11-19
江苏精微特电子股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is to use the imported micro-processing unit, and install the whole imported micro-processing unit on the outer drum of the washing machine. The conversion value of the detected amplitude value to the main control board of the washing machine is sent to the motor, and the rotation number and frequency of the motor are adjusted to increase or decrease the damping force in the corresponding direction. Since the existing technology uses imported micro-processing units and sensors, the cost is relatively high. High, but the accuracy and stability of the technology are not high enough, resulting in poor product consistency and affecting user experience

Method used

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  • Method for detecting displacement data of washing machine
  • Method for detecting displacement data of washing machine

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Embodiment Construction

[0023] figure 1 For the circuit structure diagram of the present invention and figure 2 As shown in the program flowchart of the washing machine displacement module of the present invention, the method for detecting the vibration displacement data of the washing machine by the washing machine displacement module of the present invention includes the following steps:

[0024] When the washing machine is powered on, power on the displacement module of the washing machine at the same time;

[0025] MCU microprocessor, MEMS sensor, timer, serial port initialization; such as figure 2 as shown in S101;

[0026] MEMS sensor calibration, after MEMS sensor calibration initialization, collect a certain amount of MEMS sensor acceleration data and take the average as a reference value, and when the MEMS sensor data read later meets certain conditions, the MEMS sensor calibration will be performed again to eliminate the MEMS sensor data. Drift; such as figure 2 Shown in S102;

[00...

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Abstract

The invention relates to a method for detecting displacement data of a washing machine. The method is characterized by comprising the following steps: presetting a vibration displacement measurement processing module MEMS sensor, and collecting the three-axis acceleration data of an external drum of the washing machine though an MEMS sensor communication protocol; then selecting filters withdifferent filter coefficients and gain according to the rotate speed of the washing machine to obtain the displacement data of the washing machine with high accuracy; transmitting the displacement data of the washing machine to a serial port in real time; while the serial port receives real-time rotate speed of the washing machine, returning current displacement to a washing machine controller bythe serial port in real time for controlling the rotate speed of a washing machine running motor.

Description

technical field [0001] The invention relates to the field of home appliances, and more specifically, relates to a method for detecting displacement data of a washing machine. Background technique [0002] When the washing machine dehydrates, the motor is used as the power source. The vibration generated by the motor during operation becomes the vibration source of the washing machine. The inner cylinder rotates under the drive of the motor. Due to the existence of clothes, an eccentric load will be generated inside the inner cylinder, causing the inner cylinder to Vibration will be generated due to variable load and eccentric direction, and the outer cylinder will also vibrate due to the vibration of the motor and the vibration of the inner cylinder. The outer cylinder is connected to the box through the support device, and the vibration of the outer cylinder will be transmitted through the damper To the box, the box vibrates, and the vibration of the box will be transmitted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02
Inventor 江冠华程修国
Owner 江苏精微特电子股份有限公司
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