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Air conditioner indoor unit, measurement and control method, measurement and control system, air conditioner and storage medium

An air conditioner internal unit, measurement and control method technology, applied in mechanical equipment, high-efficiency adjustment technology, climate sustainability, etc., can solve problems such as low noise, user experience, air conditioner speed regulation lag, etc., and achieve fan speed regulation. Smooth process, improved user comfort, smooth and soft effect of speed regulation process

Inactive Publication Date: 2021-03-05
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Through the above analysis, the problems and defects of the existing technology are: the noise problem caused by abnormal fluctuations in the speed regulation process of the air conditioner and the problem of low user experience; at the same time, the speed regulation of the existing air conditioner has hysteresis

Method used

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  • Air conditioner indoor unit, measurement and control method, measurement and control system, air conditioner and storage medium

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Embodiment 1

[0095] The present invention calculates the linear regression equation between the duty ratio and the rotational speed of the air-conditioning system through the relationship between the PWM duty ratio and the rotational speed collected in the trial operation stage, and uses the estimated value obtained by the regression equation as a judgment reference for the speed regulation process and A reference for judging the operation of the air conditioner. As in Table 1.

[0096] Table 1: Data collection list of air conditioner indoor unit

[0097] Rotating speed PWM duty cycle Y1 X1 Y2 X2 … … Yn x

Embodiment 2

[0099] 1. The air conditioner is first run in the trial operation stage. By collecting the PWM duty cycle, the speed feedback signal of the air conditioner’s internal unit is collected. For example: the collected speed is from 300r / min to 1500r / min, and each increase of 10r / min is divided into a group, a total of 130 Set of data, assuming that the PWM duty cycle and the rotational speed exist in different sampling subjects and are independent of each other, and satisfy the Gauss-Markov assumption. Suppose the PWM duty cycle information collected by the air conditioner at this time is as follows: x 1 , x 2 , x 3 ,...,x n ; Suppose the speed information collected by the air conditioner at this time is: y 1 ,y 2 ,y 3 ,...,y n , and express the collected information in the form of a vector:

[0100]

[0101] 2. Assuming that the G-M assumption (Gauss-Markov assumption) is satisfied between the rotational speed and the PWM duty cycle, the following unary regression equatio...

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Abstract

The invention belongs to the technical field of air conditioner control, and discloses an air conditioner indoor unit, a measurement and control method, a measurement and control system, an air conditioner and a storage medium. The measurement and control method comprises the following steps that the PWM duty ratio and the indoor unit rotating speed are sampled through the air conditioner indoor unit, and a regression matrix is established; a first-order regression equation is constructed by utilizing G-M hypothesis, and an air conditioner linear regression equation is obtained; and when a user sets the rotating speed, the air conditioner obtains an estimated value of the corresponding PWM duty ratio under the rotating speed set by the user through operation, and speed regulation is carried out based on the obtained estimated value. According to the air conditioner indoor unit, the measurement and control method, the measurement and control system, the air conditioner and the storage medium, the PWM duty ratio and the indoor unit rotating speed are sampled, the PWM duty ratio under different rotating speeds is estimated by using a regression analysis method, so that an indoor unitmain controller can know the PWM duty ratio under the set rotating speed in advance, the speed regulation stability of the indoor unit rotating speed is improved, the problem that the indoor unit rotating speed fluctuation is abnormal due to individual difference and unreasonable PID setting parameters when the air conditioner uses different motor manufacturers is solved, and soft gear shifting isrealized.

Description

technical field [0001] The invention belongs to the technical field of air conditioner control, and in particular relates to an air conditioner inner unit, a measurement and control method, a measurement and control system, an air conditioner and a storage medium. Background technique [0002] At present, the speed of the built-in drive of the air conditioner is mostly based on PWM control. The speed regulation method mainly adopts PID speed regulation. The abnormality of speed regulation directly leads to obvious noise problems when the air conditioner is working, especially the household air conditioner is mostly used indoors, and the noise generated at night affects the user's rest and directly affects the comfort of the user experience. [0003] The utility model patent No. CN201320877672.1 discloses an air-conditioning control system, including a centralized controller, a display, a control panel, a voice device and an air-conditioning internal unit. The key informatio...

Claims

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Application Information

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IPC IPC(8): F24F11/54F24F11/77F24F11/56
CPCF24F11/54F24F11/56F24F11/77Y02B30/70
Inventor 王桥李坚黎俊宇张永刚孔进亮邓舟舟
Owner GREE ELECTRIC APPLIANCES INC
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