Multi-gear control method for air speed of air conditioner

Abstract

The invention discloses an air conditioner air speed multi-gear control method. The method comprises the steps that firstly, environment parameters are collected; the environment temperature change rate, namely delta T / delta t, is obtained in real time, and the sampling period is smaller than or equal to 10 S; the human body activity state is the infrared pyroelectric signal intensity; sleep stage recognition, namely voiceprint characteristic frequency spectrum; step 2, inputting the acquired environmental parameters into a fuzzy control module in the MCU controller, and outputting wind speed instructions from V1 to V7 by the MCU controller; acquiring an environment temperature change rate in real time; according to the human body activity state, human body surface temperature distribution is scanned at the frequency of 0.5 Hz, and an activity index delta S / delta t is calculated based on the heat source moving speed; according to the sleep stage recognition, the sleep stages are divided through the snore frequency entropy Hf collected by the microphone array. The method has the advantages that adaptive adjustment of the wind speed gear is achieved by fusing the environment temperature change rate, the human body activity state and the sleep stage, and comfort and energy efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a method for controlling multiple wind speed levels of an air conditioner. Background Art

[0002] Traditional air conditioner speed control relies heavily on manual adjustments or a single temperature parameter, which can't adapt to the dynamic needs of the human body (such as activity and sleep stages), resulting in high energy consumption and poor comfort. Existing technologies lack the ability to collaboratively analyze temperature change rates, human activity, and sleep stages, necessitating an intelligent, multi-speed speed control method. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-speed control method for air conditioners, which has the advantages of realizing adaptive adjustment of wind speed levels by integrating three parameters: ambient temperature change rate, human activity status, and sleep stage, thereby improving comfort and energy efficiency.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A method for controlling a multi-speed air conditioner wind speed includes a control system for a multi-speed air conditioner wind speed, wherein the control system includes an MCU controller, a multi-spectral infrared sensor, and a temperature gradient calculation module;

[0006] The method for controlling the multi-speed of the air conditioner includes the following steps:

[0007] Step 1: Environmental parameter collection;

[0008] Real-time acquisition of ambient temperature change rate, i.e., ΔT / Δt, with a sampling period of ≤10S;

[0009] Human activity status, i.e., infrared pyroelectric signal intensity;

[0010] Sleep stage recognition, i.e. voiceprint feature spectrum;

[0011] Step 2: Input the collected environmental parameters into the fuzzy control module in the MCU controller, and the MCU controller outputs wind speed instructions V1 to V7;

[0012] in,

[0013] According to, real-time acquisition of ambient temperature change rate,

[0014] When ΔT / Δt≥2.0℃, the MCU controller outputs V7 wind speed command;

[0015] When 1.5℃≤ΔT / Δt<2.0℃, the MCU controller outputs V6 wind speed command;

[0016] When 0.5℃≤ΔT / Δt<1.5℃, the MCU controller outputs V4 to V5 wind speed instructions;

[0017] When ΔT / Δt is less than 0.5℃ and lasts for ≥20 minutes, the breeze cycle is triggered and the MCU controller outputs the V1 wind speed command;

[0018] According to the human body's activity status, the surface temperature distribution of the human body is scanned at a frequency of 0.5Hz, and the activity index ΔS / Δt is calculated based on the heat source movement speed.

[0019] 0-0.05m / s, the human body is in a sitting or sleeping state, the breeze cycle is triggered, and the MCU controller outputs the V1 wind speed command;

[0020] 0-0.15m / s, the human body is in a slow walking state, and the MCU controller outputs V4 to V5 wind speed instructions;

[0021] >0.15m / s, the human body is in motion, and the MCU controller outputs V6 and V7 wind speed instructions;

[0022] According to sleep stage recognition, the snoring frequency entropy value Hf collected by the microphone array is used to divide the sleep stages.

[0023] During the light sleep period, 0.5≤Hf<1.2, the MCU controller outputs the wind speed instructions V6 and V7;

[0024] During deep sleep, if Hf ≥ 1.2, the MCU controller will trigger adaptive gear adjustment, that is, the gear will automatically downgrade by 1 level every 30 minutes to the lowest gear V1, and the air supply angle will be raised by 15°.

[0025] The preferred options are as follows:

[0026] Preferably: also includes a summer nap adjustment mode;

[0027] Set the air conditioning temperature to 26°C, that is, ΔT / Δt=1.8°C / min, and the MCU controller outputs V6 wind speed instruction.

[0028] After 10 minutes, ΔT / Δt dropped to 0.4°C / min, and stable snoring was detected, that is, Hf = 1.5.

[0029] At this time, the MCU controller outputs the V4 wind speed command, and the air supply angle is upward.

[0030] Preferably: also including control panel adjustment;

[0031] The control panel includes an increase key, a decrease key, a gear display screen, and a software system that includes anti-shake processing, gear adjustment logic, and prevention of continuous rapid key presses;

[0032] The specific steps are as follows:

[0033] Step 1: Turn on the air conditioner and initialize the wind speed level, the default speed is V3;

[0034] Step 2: Press the increase button, the gear position is +1, the maximum is 7; press the decrease button, the gear position is -1, the minimum is 1;

[0035] Including, short press, each press adjusts one gear; long press, keep pressing for more than 1 second to start continuous adjustment;

[0036] Step 3: The gear display screen shows the wind speed and the air conditioner updates the wind speed.

[0037] In summary, the present invention has the following beneficial effects:

[0038] 1. Through the setting of multi-spectral infrared sensor, it can detect the surface temperature distribution and movement speed of the human body;

[0039] 2. By setting the temperature gradient calculation module, it is possible to calculate ΔT / Δt based on temperature sensor data;

[0040] 3. Through the setting of MCU controller, it can integrate fuzzy control algorithm and output wind speed command and angle adjustment signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the framework flow of the embodiment. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] Example 1:

[0044] A method for controlling a multi-speed air conditioner wind speed includes a control system for a multi-speed air conditioner wind speed, wherein the control system includes an MCU controller, a multi-spectral infrared sensor, and a temperature gradient calculation module;

[0045] The method for controlling the multi-speed of the air conditioner includes the following steps:

[0046] Step 1: Environmental parameter collection;

[0047] Real-time acquisition of ambient temperature change rate, i.e., ΔT / Δt, with a sampling period of ≤10S;

[0048] Human activity status, i.e., infrared pyroelectric signal intensity;

[0049] Sleep stage recognition, i.e. voiceprint feature spectrum;

[0050] Step 2: Input the collected environmental parameters into the fuzzy control module in the MCU controller, and the MCU controller outputs wind speed instructions V1 to V7;

[0051] in,

[0052] According to, real-time acquisition of ambient temperature change rate,

[0053] When ΔT / Δt≥2.0℃, the MCU controller outputs V7 wind speed command;

[0054] When 1.5℃≤ΔT / Δt<2.0℃, the MCU controller outputs V6 wind speed command;

[0055] When 0.5℃≤ΔT / Δt<1.5℃, the MCU controller outputs V4 to V5 wind speed instructions;

[0056] When ΔT / Δt is less than 0.5℃ and lasts for ≥20 minutes, the breeze cycle is triggered and the MCU controller outputs the V1 wind speed command;

[0057] According to the human body's activity status, the surface temperature distribution of the human body is scanned at a frequency of 0.5Hz, and the activity index ΔS / Δt is calculated based on the heat source movement speed.

[0058] 0-0.05m / s, the human body is in a sitting or sleeping state, the breeze cycle is triggered, and the MCU controller outputs the V1 wind speed command;

[0059] 0-0.15m / s, the human body is in a slow walking state, and the MCU controller outputs V4 to V5 wind speed instructions;

[0060] >0.15m / s, the human body is in motion, and the MCU controller outputs V6 and V7 wind speed instructions;

[0061] According to sleep stage recognition, the snoring frequency entropy value Hf collected by the microphone array is used to divide the sleep stages.

[0062] During the light sleep period, 0.5≤Hf<1.2, the MCU controller outputs the wind speed instructions V6 and V7;

[0063] During deep sleep, if Hf ≥ 1.2, the MCU controller will trigger adaptive gear adjustment, that is, the gear will automatically downgrade by 1 level every 30 minutes to the lowest gear V1, and the air supply angle will be raised by 15°.

[0064] Example 2:

[0065] Summer nap adjustment mode;

[0066] Set the air conditioning temperature to 26°C, that is, ΔT / Δt=1.8°C / min, and the MCU controller outputs V6 wind speed instruction.

[0067] After 10 minutes, ΔT / Δt dropped to 0.4°C / min, and stable snoring was detected, that is, Hf = 1.5.

[0068] At this time, the MCU controller outputs the V4 wind speed command, and the air supply angle is upward.

[0069] Example 3:

[0070] Control panel adjustment;

[0071] The control panel includes an increase key, a decrease key, a gear display screen, and a software system that includes anti-shake processing, gear adjustment logic, and prevention of continuous rapid key presses;

[0072] The specific steps are as follows:

[0073] Step 1: Turn on the air conditioner and initialize the wind speed level, the default speed is V3;

[0074] Step 2: Press the increase button, the gear position is +1, the maximum is 7; press the decrease button, the gear position is -1, the minimum is 1;

[0075] Including, short press, each press adjusts one gear; long press, keep pressing for more than 1 second to start continuous adjustment;

[0076] Step 3: The gear display screen shows the wind speed and the air conditioner updates the wind speed.

[0077] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A multi-speed control method for air conditioners, characterized by: The multi-speed air-conditioning control system includes an MCU controller, a multi-spectral infrared sensor, and a temperature gradient calculation module. The method for controlling the multi-speed of the air conditioner includes the following steps: Step 1: Environmental parameter collection; Real-time acquisition of ambient temperature change rate, i.e., ΔT / Δt, with a sampling period of ≤10S; Human activity status, i.e., infrared pyroelectric signal intensity; Sleep stage recognition, i.e. voiceprint feature spectrum; Step 2: Input the collected environmental parameters into the fuzzy control module in the MCU controller, and the MCU controller outputs wind speed instructions V1 to V7; in, According to, real-time acquisition of ambient temperature change rate, When ΔT / Δt≥2.0℃, the MCU controller outputs V7 wind speed command; When 1.5℃≤ΔT / Δt<2.0℃, the MCU controller outputs V6 wind speed command; When 0.5℃≤ΔT / Δt<1.5℃, the MCU controller outputs V4 to V5 wind speed instructions; When ΔT / Δt is less than 0.5℃ and lasts for ≥20 minutes, the breeze cycle is triggered and the MCU controller outputs the V1 wind speed command; According to the human body's activity status, the surface temperature distribution of the human body is scanned at a frequency of 0.5Hz, and the activity index ΔS / Δt is calculated based on the heat source movement speed. 0-0.05m / s, the human body is in a sitting or sleeping state, the breeze cycle is triggered, and the MCU controller outputs the V1 wind speed command; 0-0.15m / s, the human body is in a slow walking state, and the MCU controller outputs V4 to V5 wind speed instructions; >0.15m / s, the human body is in motion, and the MCU controller outputs V6 and V7 wind speed instructions; According to sleep stage recognition, the snoring frequency entropy value Hf collected by the microphone array is used to divide the sleep stages. During the light sleep period, 0.5≤Hf<1.2, the MCU controller outputs the wind speed instructions V6 and V7; During deep sleep, if Hf ≥ 1.2, the MCU controller will trigger adaptive gear adjustment, that is, the gear will automatically downgrade by 1 level every 30 minutes to the lowest gear V1, and the air supply angle will be raised by 15°.

2. The method for controlling the air conditioner wind speed in multiple gears according to claim 1, characterized in that: Also includes a summer nap adjustment mode; Set the air conditioning temperature to 26°C, that is, ΔT / Δt=1.8°C / min, and the MCU controller outputs V6 wind speed instruction. After 10 minutes, ΔT / Δt dropped to 0.4°C / min, and stable snoring was detected, that is, Hf = 1.

5. At this time, the MCU controller outputs the V4 wind speed command, and the air supply angle is upward.

3. The method for controlling the air conditioner wind speed in multiple gears according to claim 2, characterized in that: Also includes control panel adjustments; The control panel includes an increase key, a decrease key, a gear display screen, and a software system that includes anti-shake processing, gear adjustment logic, and prevention of continuous rapid key presses; The specific steps are as follows: Step 1: Turn on the air conditioner and initialize the wind speed level, the default speed is V3; Step 2: Press the increase button, the gear position is +1, the maximum is 7; press the decrease button, the gear position is -1, the minimum is 1; Including, short press, each press adjusts one gear; Long press, keep pressing for more than 1 second to start continuous adjustment; Step 3: The gear display screen shows the wind speed and the air conditioner updates the wind speed.

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