Control method and system for improving comfort of air conditioner sleeping mode

Abstract

The invention discloses a control method and system for improving the comfort of an air conditioner sleeping mode. The control method comprises the following steps that the gender and / or the age groupof a user are detected; the outdoor air temperature, the indoor air temperature and the indoor air humidity are collected in real time, the average of the outdoor air temperature and the indoor air temperature is set as the average radiation temperature, and a target temperature value is calculated by substituting clothing heat resistance, air velocity parameters and human body metabolic rate parameters into a PMV equation, wherein the clothing heat resistance and the air velocity parameters are preset by an air conditioner; and the frequency and operating mode of a compressor are adjusted through a 0.1-DEG C precise temperature control technology, and thus the temperature is adjusted to the target temperature. The precise target temperature value can be calculated through a fitting function, real-time precise adjustment can be achieved, and the heat comfort of the user under the sleeping state is significantly improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a control method and system for improving the comfort of an air conditioner in sleep mode. Background technique [0002] There are two ways to adjust the sleep mode of the existing air conditioner, the traditional sleep curve and pmv parameter control. The traditional sleep curve is generally obtained through a large number of medical experiments, and the corresponding comfortable temperature is set according to the user type, sleep time and relative humidity, but often The variation range of this comfortable temperature during 0.5h or 1h sleep time does not exceed 0.5 degrees Celsius, which makes it impossible to accurately and continuously realize a good comfortable sleep temperature change based on the existing temperature control technology. [0003] Although the general air conditioner is in the low wind speed cooling state when it is running in the slee...

AI Technical Summary

Problems solved by technology

[0002] There are two ways to adjust the sleep mode of the existing air conditioner, the traditional sleep curve and pmv parameter control. The traditional sleep curve is generally obtained through a large number of medical experiments, and the corresponding comfortable temperature is set according to the user type, sleep time and relative humidity, but often The range of change of this comfortable temperature in 0.5h or 1h sleep time does not exceed 0.5 degrees Celsius, which makes it impossible to accurately and continuously achieve a good comfortable sleep temperature change based on the existing temperature control technology

[0003] Although the general air conditioner is in the low wind speed cooling state when it is running in the sleep mode, it will still continue to dehumidify the room due to the low evaporation temperature of the indoor heat exchanger. Changes (awakening period, light sleep period, deep sleep period and rapid eye movement period), and changes in outdoor temperature at night will cause changes in various parameters in the pmv equation, such as average radiation temperature, etc. At this time, only indoor temperature and humidity are considered The pmv value calculated due to changes cannot accurately reflect the comfortable feeling of the user's sleep state

[0004] The traditional fixed sleep time-temperature curve to adjust the operating state of the air conditioner cannot timely perceive the discomfort of the user in the sleeping state. For example, during the deep sleep period, the suitable indoor temperature obtained in general medical experiments is 25°C, but this data is often It is obtained under comfortable humidity conditions (such as 40% to 60% relative humidity). Due to the continuous operation of the air conditioner in the sleep state, the indoor humidity condition may have reached 30%. At this time, if the temperature of 25°C is used to calculate pmv value, it will give the result that the user feels cold

That is to say, the suitable temperature data of each stage of sleep state obtained by traditional medical experiments only considers the difference in physiological parameters of people in each stage, but does not consider the influence of the external environment on the perceived temperature of the human body, but only uses fixed physiological parameters. Finding the temperature data that minimizes the pmv value does not take into account changes in human physiological parameters at night and during sleep and the impact of the outdoor environment on pmv calculations

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