Ducted fan and control method, device, storage medium and computer program product thereof

Abstract

The application discloses a ducted air conditioner and a control method, device, storage medium and computer program product thereof. The method comprises the following steps: after the ducted air conditioner is started, the air quality parameter of the current room is acquired, the temperature and humidity parameter of the current room is acquired, and the user category of the current room is acquired; and according to the air quality parameter of the current room, the temperature and humidity parameter of the current room and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotating speed of the fan, the position of the air deflector, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. According to the air quality parameter, the temperature and humidity parameter and the personnel category in the room, at least one of the opening degree of the outdoor return air valve and the indoor return air valve, the rotating speed of the fan and the air outlet mode is controlled to meet more user requirements and improve user experience. The ducted air conditioner belongs to an energy-saving air conditioner.

Description

Technical Field

[0001] This invention belongs to the field of ducted air conditioning technology, specifically relating to a control method, device, ducted air conditioning unit, storage medium, and computer program product for a ducted air conditioning unit. More particularly, it relates to a control method, device, ducted air conditioning unit, storage medium, and computer program product for a ducted air conditioning unit that couples multiple environmental parameters in a room based on valve linkage control. This ducted air conditioning unit is an energy-saving air conditioner. Background Technology

[0002] In multi-room environments, both residential and commercial, ducted air conditioners (i.e., ducted air conditioning units) are the mainstream air conditioning equipment, effectively regulating indoor temperature while improving space utilization.

[0003] However, the control methods for ducted air conditioners in the relevant solutions are too simplistic (e.g., adjusting only based on room air outlet temperature), failing to meet more user needs (such as comfort and health requirements), thus impacting the user experience. This ducted air conditioner is classified as an energy-saving unit.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not imply acknowledgment that the above content is in the relevant solution. Summary of the Invention

[0005] The purpose of this invention is to provide a control method, device, ducted air conditioner, storage medium, and computer program product to solve the problem that ducted air conditioners have a single control method (such as adjusting only based on room outlet air temperature), which cannot meet more user needs (such as comfort needs, health needs, etc.) and affects user experience. The invention achieves the effect of meeting more user needs (such as comfort needs, health needs, etc.) and improving user experience by controlling at least one of the following based on room air quality parameters, temperature and humidity parameters, and personnel categories (such as the degree of protection required): the opening degree of the outdoor return air valve and the indoor return air valve, the fan speed, and the air outlet method (such as air outlet direction and / or air outlet path). This ducted air conditioner belongs to the category of energy-saving air conditioners.

[0006] This invention provides a control method for a ducted air conditioner. The ducted air conditioner includes a return air duct, a fan, an air guide plate, an upper air outlet valve, and a lower air outlet valve. An outdoor return air valve is installed at the outdoor air inlet of the return air duct, and an indoor return air valve is installed at the indoor air inlet of each room on the return air duct. The control method for the ducted air conditioner includes: after the ducted air conditioner is turned on, acquiring the air quality parameters, temperature and humidity parameters, and user category of the current room for the current room; and controlling at least one of the following based on the air quality parameters, temperature and humidity parameters, and user category of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the fan speed, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0007] In some embodiments, the air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the impact of the first category of parameters of the current room on the health of the users of the current room is greater than the impact of the second category of parameters of the current room on the health of the users of the current room; based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: controlling the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, and the position of the air guide plate, based on the first category of parameters of the current room. The opening and closing of the air outlet valve and the opening and closing of the lower air outlet valve; when it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, based on the user category of the current room, according to the second type of parameter of the current room and the temperature and humidity of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve; after a set time, return to control at least one of the following again based on the user category of the current room, according to the second type of parameter of the current room and the temperature and humidity of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0008] In some implementations, the first type of parameter of the current room includes at least one of the formaldehyde content of the current room and the PM2.5 content of the current room; correspondingly, the preset threshold of the first type of parameter of the current room includes at least one of the preset formaldehyde content and the preset PM2.5 content; controlling the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the first type of parameter of the current room includes: determining whether the formaldehyde content of the current room is less than or equal to the preset formaldehyde content and the PM2.5 content of the current room is less than or equal to the preset PM2.5 content; if it is determined that the formaldehyde content of the current room is less than or equal to the preset formaldehyde content and the current PM2.5 content is less than or equal to the preset PM2.5 content; If the PM2.5 content in the previous room is less than or equal to a preset PM2.5 content, then the first type of parameter of the current room is determined to meet the preset threshold of the first type of parameter of the current room. If it is determined that the formaldehyde content and PM2.5 content of the current room are not both less than or equal to a preset formaldehyde content, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree, the opening degree of the indoor return air valve of the current room is 0, the speed of the fan is set to the preset enhanced wind speed, the upper air outlet valve is opened, and the lower air outlet valve is opened. After a period of time, the process is repeated to re-determine whether the formaldehyde content and PM2.5 content of the current room are both less than or equal to a preset formaldehyde content.

[0009] In some implementations, the air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the impact of the first category of parameters on the health of the users of the current room is greater than the impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category, classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room; based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the lower air outlet valve. The opening and closing of the air damper also includes: if it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, determining whether the user category of the current room belongs to the first category or the second category; if it is determined that the user category of the current room belongs to the first category, then firstly, based on the second type of parameter of the current room and the indoor humidity of the current room, controlling the opening degree of the outdoor return air damper and the opening degree of the indoor return air damper of the current room, and controlling the position of the air guide plate to be in a preset anti-direct blowing position; then... Based on the current room temperature, control the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve; if it is determined that the user category of the current room belongs to the second category, then based on the second category parameters of the current room, combined with the current room humidity and the current room temperature, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the current room indoor return air valve, the fan speed, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0010] In some implementations, the second type of parameter of the current room includes: the CO2 concentration of the current room; if the user category of the current room belongs to the first category, firstly, based on the second type of parameter of the current room and the indoor humidity of the current room, control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, and control the position of the air guide plate to be in a preset anti-direct-blowing position, including: controlling the position of the air guide plate to be in a preset anti-direct-blowing position; determining whether the CO2 concentration of the current room is less than or equal to a first preset CO2 concentration; if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, then based on the indoor humidity of the current room, perform a first control on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room; if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration, then based on the indoor humidity of the current room, perform a second control on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room.

[0011] And / or, if the user category of the current room belongs to the first category, after controlling the opening degree of the outdoor return air valve and the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in a preset anti-direct-blow position, the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, including: determining whether the current operating mode of the ducted air conditioner is cooling mode or heating mode; if the current operating mode of the ducted air conditioner is determined to be cooling mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are first controlled according to the indoor temperature of the current room; if the current operating mode of the ducted air conditioner is determined to be heating mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are second controlled according to the indoor temperature of the current room.

[0012] In some embodiments, the first control of the opening degree of the outdoor return air valve and the indoor return air valve of the current room based on the current indoor humidity includes: if it is determined that the current indoor humidity is less than a first preset humidity, then controlling the opening degree of the outdoor return air valve to a first proportion of the preset maximum opening degree of the outdoor return air valve, and controlling the opening degree of the indoor return air valve of the current room to a first proportion of the preset maximum opening degree of the indoor return air valve of the current room; if it is determined that the current indoor humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then controlling the opening degree of the outdoor return air valve to maintain the current value, and controlling the opening degree of the indoor return air valve of the current room to maintain the current value; if it is determined that the current indoor humidity is greater than the second preset humidity, then controlling the opening degree of the outdoor return air valve to 0, and controlling the opening degree of the indoor return air valve of the current room to the preset maximum opening degree of the indoor return air valve of the current room.

[0013] And / or, based on the current room's indoor humidity, perform a second control on the opening degree of the outdoor return air valve and the opening degree of the current room's indoor return air valve, including: if it is determined that the current room's indoor humidity is less than a first preset humidity, then control the opening degree of the outdoor return air valve to the preset maximum opening degree of the outdoor return air valve, and control the opening degree of the current room's indoor return air valve to 0; if it is determined that the current room's indoor humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then control the opening degree of the outdoor return air valve to the outdoor... The system sets the opening of the return air valve to a first percentage of its preset maximum opening, and controls the opening of the indoor return air valve in the current room to be a first percentage of its preset maximum opening. If the indoor humidity in the current room is determined to be greater than a second preset humidity, the system controls the opening of the outdoor return air valve to a second percentage of its preset maximum opening, and controls the opening of the indoor return air valve in the current room to a third percentage of its preset maximum opening. The second percentage is less than the first percentage, and the third percentage is greater than the first percentage.

[0014] And / or, based on the current room temperature, perform a first control on the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a first preset temperature and less than a second preset temperature, then control the fan speed to a preset lowest fan speed and control the upper air outlet valve to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a second preset temperature and less than a third preset temperature, then control the fan speed to a preset lowest fan speed and control the upper air outlet valve to open; The fan speed is set to the preset normal speed setting, and the upper air outlet valve is opened. If the absolute value of the temperature difference between the current room temperature and the target room temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, the fan speed is set to the preset enhanced speed setting, and the upper air outlet valve is opened. If the absolute value of the temperature difference between the current room temperature and the target room temperature is greater than or equal to a fourth preset temperature, the fan speed is set to the preset enhanced speed setting, the upper air outlet valve is opened, and the lower air outlet valve is opened.

[0015] And / or, based on the current room temperature, perform a second control on the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a first preset temperature and less than a second preset temperature, then control the fan speed to a preset minimum fan speed and control the lower air outlet valve to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a second preset temperature and less than a third preset temperature, then control the fan speed to a preset minimum fan speed and control the lower air outlet valve to open; The fan speed is set to the preset normal setting, and the lower air outlet valve is opened. If the absolute value of the temperature difference between the current room temperature and the target room temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, the fan speed is set to the preset enhanced setting, and the lower air outlet valve is opened. If the absolute value of the temperature difference between the current room temperature and the target room temperature is greater than or equal to a fourth preset temperature, the fan speed is set to the preset enhanced setting, the upper air outlet valve is opened, and the lower air outlet valve is opened.

[0016] In some embodiments, the air quality parameters of the current room include: a first category of parameters and a second category of parameters classified according to the degree of impact of the air quality of the current room on the health of the users; the impact of the first category of parameters on the health of the users of the current room is greater than the impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room; based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, etc. The opening and closing of the downflow air valve also includes: determining whether the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room; if it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, then first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room; then prioritizing the control of the fan speed according to the indoor temperature of the current room. The opening and closing of the upper and lower air outlet valves are combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room. If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled first according to the indoor humidity of the current room; then the fan speed, the opening and closing of the upper and lower air outlet valves are controlled according to the indoor temperature of the current room.

[0017] In some embodiments, the second type of parameter of the current room includes: the CO2 concentration of the current room; when the user of the current room belongs to the second category, and when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled first according to the second type of parameter of the current room and the indoor humidity of the current room, including: determining whether the CO2 concentration of the current room is less than or equal to a first preset CO2 concentration; if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled thirdly according to the indoor humidity of the current room; if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled fourthly according to the indoor humidity of the current room.

[0018] And / or, if it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, then prioritizing the control of the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, and combining the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: determining whether the current operating mode of the ducted air conditioner is cooling mode or... If the current operating mode of the ducted air conditioner is determined to be heating mode, then the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are first controlled based on the current room temperature, combined with the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room; if the current operating mode of the ducted air conditioner is determined to be heating mode, then the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are second controlled based on the current room temperature, combined with the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room.

[0019] In some embodiments, a third control is performed on the opening of the outdoor return air valve and the indoor return air valve of the current room based on the current indoor humidity, including: if it is determined that the current indoor humidity is less than a first preset humidity, then the opening of the outdoor return air valve is controlled to a second proportion of the preset maximum opening of the outdoor return air valve, and the opening of the indoor return air valve of the current room is controlled to a third proportion of the preset maximum opening of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion; if it is determined that the current indoor humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening of the outdoor return air valve is controlled to maintain its current value, and the opening of the indoor return air valve of the current room is controlled to maintain its current value; if it is determined that the current indoor humidity is greater than the second preset humidity, then the opening of the outdoor return air valve is controlled to be 0, and the opening of the indoor return air valve of the current room is controlled to be the preset maximum opening of the indoor return air valve of the current room.

[0020] And / or, based on the current room's indoor humidity, a fourth control is performed on the opening degree of the outdoor return air valve and the opening degree of the current room's indoor return air valve, including: if it is determined that the current room's indoor humidity is less than a first preset humidity, then the opening degree of the outdoor return air valve is controlled to a third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the current room's indoor return air valve is controlled to a second proportion of the preset maximum opening degree of the current room's indoor return air valve, the second proportion being less than the third proportion; if it is determined that the current room's indoor humidity is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then... If the humidity is determined to be higher than the second preset humidity, the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the first proportion is greater than the second proportion and less than the third proportion; if it is determined that the indoor humidity of the current room is greater than the second preset humidity, the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room.

[0021] And / or, prioritizing the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the indoor return air valve of the current room, the first control is performed on the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: if it is determined that the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is greater than or equal to a first preset temperature and less than a second preset temperature, then the fan speed is controlled to the preset lowest fan speed, and the upper air outlet valve is controlled to open; ... If the absolute value of the temperature difference is greater than or equal to the second preset temperature and less than the third preset temperature, then the fan speed is controlled to the preset normal fan speed, and the upper air outlet valve is controlled to open; if the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is determined to be greater than or equal to the third preset temperature, then the fan speed is controlled to the preset normal fan speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the current room's indoor return air valve is controlled to increase by a set level based on the current value.

[0022] And / or, prioritizing the current room's indoor temperature, combined with the opening degree of the outdoor return air valve and the opening degree of the current room's indoor return air valve, a second control is performed on the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: if it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to a first preset temperature and less than a second preset temperature, then the fan speed is controlled to the preset lowest fan speed, and the lower air outlet valve is controlled to open; ... If the absolute value of the temperature difference is greater than or equal to the second preset temperature and less than the third preset temperature, then the fan speed is controlled to the preset normal fan speed, and the lower air outlet valve is controlled to open; if the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is determined to be greater than or equal to the third preset temperature, then the fan speed is controlled to the preset normal fan speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the current room's indoor return air valve is controlled to increase by a set level based on the current value.

[0023] In some implementations, the second type of parameter of the current room includes: the CO2 concentration of the current room; when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled first according to the indoor humidity of the current room, including: when it is determined that the CO2 concentration of the current room is greater than a second preset CO2 concentration, then: if it is determined that the indoor humidity of the current room is less than a first preset humidity, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be 0; if it is determined that the CO2 concentration of the current room is greater than a second preset CO2 concentration, then: if it is determined that the indoor humidity of the current room is less than a first preset humidity, then the opening degree of the outdoor return air valve is controlled to be ... indoor humidity of the current room is less than a second preset CO2 concentration, then the opening degree of the outdoor return air valve is controlled to be the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be 0; if it is determined that the indoor humidity of the current room is greater than a second preset CO2 concentration, then the opening degree of the outdoor return air valve is controlled to be the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be 0 If the current room's indoor humidity is greater than or equal to a first preset humidity and less than or equal to a second preset humidity, then the opening degree of the outdoor return air valve is controlled to a third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the current room's indoor return air valve is controlled to a second proportion of the preset maximum opening degree of the current room's indoor return air valve, where the second proportion is less than the third proportion; if it is determined that the current room's indoor humidity is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the current room's indoor return air valve is controlled to a first proportion of the preset maximum opening degree of the current room's indoor return air valve, where the first proportion is greater than the second proportion and less than the third proportion.

[0024] And / or, if it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, including: determining whether the current operating mode of the ducted air conditioner is cooling mode or heating mode; if it is determined that the current operating mode of the ducted air conditioner is cooling mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room; if it is determined that the current operating mode of the ducted air conditioner is heating mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0025] In some embodiments, the third control of the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve based on the current room temperature includes: if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a first preset temperature and less than a second preset temperature, then the fan speed is controlled to a preset minimum fan speed, and the upper air outlet valve is controlled to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a second preset temperature and less than a third preset temperature, then the fan speed is controlled to a preset normal fan speed, and the upper air outlet valve is controlled to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the target temperature of the current room is greater than or equal to a third preset temperature, then the fan speed is controlled to a preset enhanced fan speed, and the upper air outlet valve is controlled to open.

[0026] And / or, based on the current room temperature, a fourth control is performed on the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: if it is determined that the absolute value of the temperature difference between the current room temperature and the current room target temperature is greater than or equal to a first preset temperature and less than a second preset temperature, then the fan speed is controlled to a preset minimum fan speed, and the lower air outlet valve is controlled to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the current room target temperature is greater than or equal to a second preset temperature and less than a third preset temperature, then the fan speed is controlled to a preset normal fan speed, and the lower air outlet valve is controlled to open; if it is determined that the absolute value of the temperature difference between the current room temperature and the current room target temperature is greater than or equal to a third preset temperature, then the fan speed is controlled to a preset enhanced fan speed, and the lower air outlet valve is controlled to open.

[0027] In conjunction with the above method, another aspect of the present invention provides a control device for a ducted air conditioner, comprising: an acquisition unit configured to acquire, after the ducted air conditioner is turned on, acquire air quality parameters of the current room, acquire temperature and humidity parameters of the current room, and acquire the user category of the current room; and a control unit configured to control at least one of the following based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0028] In conjunction with the above-mentioned device, the present invention further provides a duct air conditioner, including: the control device for the duct air conditioner described above.

[0029] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, the device containing the storage medium is controlled to perform the steps of the control method for the duct machine described above.

[0030] In conjunction with the above method, the present invention further provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for the duct machine described above.

[0031] The solution of this invention, for a ducted air conditioner, after the ducted air conditioner is turned on, for the current room (i.e., for the room that needs to be controlled among all the rooms corresponding to the ducted air conditioner that are currently turned on), obtains the air quality parameters, temperature and humidity parameters, and user category of the current room; based on the air quality parameters, temperature and humidity parameters, and user category of the current room, controls at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. Therefore, by controlling at least one of the following based on indoor air quality parameters, temperature and humidity parameters, and personnel categories (such as the degree of protection required), the opening degree of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), the fan speed of the fan 32, the air outlet direction (e.g., adjusting the air outlet direction by the position of the air guide plate), and the air outlet path (e.g., adjusting the air outlet path by opening and closing the upper and lower air outlet valves), more user needs (such as comfort needs, health needs, etc.) can be met, thus improving the user experience. This ducted air conditioner is an energy-saving air conditioner.

[0032] Specifically, in the solution of this invention, for a ducted air conditioner, a fan 31 and a heat exchanger 32 are sequentially arranged between the return air duct 4 and the outlet air duct 2 of the ducted air conditioner; a second intelligent air valve 41 (outdoor return air valve) is installed at the outdoor air inlet of the return air duct 4 of the ducted air conditioner, that is, a second intelligent air valve 41 (outdoor return air valve) is installed at the inlet of the outdoor side of the return air duct 4 of the ducted air conditioner; a third intelligent air valve 51 (indoor return air valve) is installed at the indoor air inlet of the return air duct 4 of the ducted air conditioner, that is, a third intelligent air valve 51 (indoor return air valve) is installed at the inlet of the indoor side of the return air duct 4 of each room; a second intelligent air valve 31 (outdoor return air valve) is installed at the indoor side of the outlet air duct 2 of the ducted air conditioner. An air guide plate and a first intelligent air valve 21 (indoor air outlet valve) are installed at the air outlet. The first intelligent air valve 21 (indoor air outlet valve) includes an upper air outlet valve and a lower air outlet valve. The air guide plate is used to adjust the overall air outlet direction of the ducted air conditioner, and the upper and lower air outlet valves are used to adjust the overall air outlet path of the ducted air conditioner. The controller of the ducted air conditioner (such as an area controller) controls the second intelligent air valve 41 (outdoor return air valve), the fan 32, the overall air outlet direction of the ducted air conditioner, the overall air outlet path of the ducted air conditioner, and the third intelligent air valve 51 (indoor return air valve) for the currently operating room. Specifically, the first step is to detect the content of harmful substances (such as formaldehyde content, PM2.5) in the currently operating room.5. When the concentration of harmful substances exceeds the corresponding normal range, the second intelligent air valve 41 (outdoor return air valve) is fully opened, the third intelligent air valve 51 (indoor return air valve) is fully closed, the fan 32's fan speed is increased, and both the upper and lower air outlet valves of the duct unit are opened until the concentration of harmful substances drops to the normal range; the second step is to identify whether the people in the room belong to the group requiring protection (such as infants, the elderly, etc.). If the people in the room belong to the group requiring protection, the second intelligent air valve 41 is controlled first based on the CO2 concentration and humidity value in the room. The opening degrees of intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) are adjusted, and the anti-cold air mechanism of the ducted air conditioner is activated simultaneously (e.g., controlling the air guide plate to move to a position to prevent direct cold air blowing). Then, the fan speed of fan 32 and the opening and closing of the upper and lower air outlet valves are controlled according to the room temperature. If the people in the room are not among the required group, and the room CO2 concentration is low, the fan speed of fan 32 and the opening and closing of the upper and lower air outlet valves are controlled first based on the room temperature, and then the room CO2 concentration and humidity are adjusted accordingly. The opening degrees of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) are controlled. If the people in the room are not among the required group, then when the CO2 concentration in the room is high, the opening degrees of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) are controlled first based on the CO2 concentration and humidity value in the room. Then, the fan speed of the fan 32 and the opening and closing of the upper and lower air outlet valves are controlled based on the room temperature value. Thus, by adjusting the room air quality parameters (such as the formaldehyde content in the room)... The system controls various parameters, including air volume, PM2.5 content, CO2 concentration, temperature and humidity (e.g., room temperature and humidity), and the level of protection required for personnel (e.g., whether they are infants or elderly). It regulates the opening of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), the fan speed of the fan 32, the airflow direction (e.g., adjusting the airflow direction via the position of the air guide plate), and the airflow path (e.g., adjusting the airflow path by opening and closing the upper and lower air outlet valves). This aims to meet more user needs (e.g., comfort needs, health needs, etc.) and improve the user experience. This ducted air conditioner is an energy-saving air conditioner.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0034] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0035] Figure 1 This is a flowchart illustrating an embodiment of the control method for the ductwork machine of the present invention;

[0036] Figure 2This is a flowchart illustrating an embodiment of the method of the present invention that controls based on a first type of parameter of the current room.

[0037] Figure 3 This is a schematic flowchart of an embodiment of the method of the present invention, which controls the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the first type of parameters of the current room.

[0038] Figure 4 This is a flowchart illustrating an embodiment of the method of the present invention that controls based on the user category of the current room;

[0039] Figure 5 This is a flowchart illustrating an embodiment of the method of the present invention, in which, when the category of the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in a preset anti-direct blowing position.

[0040] Figure 6 This is a flowchart illustrating an embodiment of the method of the present invention, in which, when the category of the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in a preset anti-direct blowing position. Then, the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0041] Figure 7 This is a flowchart illustrating an embodiment of the method of the present invention that controls based on a second type of parameter of the current room;

[0042] Figure 8 This is a flowchart illustrating an embodiment of the method of the present invention, in which, when the second type of parameter of the current room is determined to be less than or equal to the upper limit of a preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second type of parameter of the current room and the indoor humidity of the current room.

[0043] Figure 9This is a flowchart illustrating an embodiment of the method of the present invention, in which, when the second type of parameter of the current room is determined to be less than or equal to the upper limit of a preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the second type of parameter of the current room and the indoor humidity of the current room, and then the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, and the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are combined.

[0044] Figure 10 This is a schematic flowchart of an embodiment of the method of the present invention, in which, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the indoor humidity of the current room, and then the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0045] Figure 11 This is a schematic diagram of the structure of an embodiment of the control device for the duct machine of the present invention;

[0046] Figure 12 This is a structural block diagram of an embodiment of a control system for a ducted air conditioning unit room that couples multiple environmental parameters based on the linkage control of air valves;

[0047] Figure 13 A schematic diagram of one embodiment of a ducted air handling unit;

[0048] Figure 14 A schematic diagram showing the airflow direction when the indoor return air valve in a ducted air handling unit is opened;

[0049] Figure 15 A schematic diagram of the opening structure of the outdoor return air valve in a ducted air handling unit;

[0050] Figure 16 A schematic diagram showing the structure where both indoor and outdoor return air valves are open in a ducted air handling unit.

[0051] Figure 17 This is a schematic diagram of the overall control logic of an embodiment of a control method for coupling multiple environmental parameters in a duct air conditioning unit room based on the linkage control of air valves;

[0052] Figure 18 This is a flowchart illustrating the first embodiment of a control method for coupling multiple environmental parameters in a duct air conditioning unit room based on valve linkage control.

[0053] Figure 19This is a flowchart illustrating a second embodiment of a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control.

[0054] Figure 20 This is a flowchart illustrating the third embodiment of a control method for coupling multiple environmental parameters in a duct air conditioning unit room based on valve linkage control.

[0055] Figure 21 This is a flowchart illustrating the fourth embodiment of a control method for coupling multiple environmental parameters in a duct air conditioning unit room based on valve linkage control.

[0056] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0057] 1-First room; 11-Temperature sensor; 12-Carbon dioxide sensor; 13-Humidity sensor; 14-PM2.5 concentration sensor; 15-Formaldehyde concentration sensor; 2-Outlet air duct; 21-First intelligent air valve (indoor outlet air valve); 22-Air outlet; 3-Casing; 31-Evaporator; 32-Fan; 33-Return air outlet; 4-Return air duct; 41-Second intelligent air valve (outdoor return air valve); 5-Second room; 51-Third intelligent air valve (indoor return air valve); 52-Outdoor outlet air valve; 6-Outdoor environment; 102-Acquisition unit; 104-Control unit. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0059] In the existing solutions, the control method of ducted air conditioners is simplistic (such as adjusting only the room's air outlet temperature), failing to meet more user needs (such as comfort and health requirements), thus impacting the user experience. In other words, these solutions rely solely on temperature parameters for environmental control, ignoring real-time changes in multi-dimensional environmental parameters such as indoor humidity and carbon dioxide concentration, leading to a dynamic imbalance between temperature, humidity, and air quality.

[0060] In addition, the relevant solutions generally use a closed-loop internal circulation air duct structure for air exchange, and the control method of the air duct is simple (such as adjusting only according to the room air temperature), which cannot meet more user needs (such as comfort needs, health needs, etc.), thus affecting the user experience.

[0061] Specifically, in relevant solutions, ducted air conditioners generally employ a closed-loop internal circulation air intake and exhaust grille structure for air exchange. For example, one type of ducted air conditioner is placed above the living room ceiling, with independent air supply valves in each room and a centralized return air valve in the living room; there is no outdoor return air valve. In the air supply mode, the airflow is as follows: room air → living room return air valve → ducted air conditioner ducts → ducted air conditioner fan components → ducted air conditioner heat exchange components → ducted air conditioner ducts → indoor air supply valves → room.

[0062] Another type of ducted air conditioner has independent supply and return air valves for each room, but no outdoor return air valve. The airflow direction is as follows: room air → indoor return air valve → ducted air conditioner duct → ducted air conditioner fan components → ducted air conditioner heat exchange components → ducted air conditioner duct → indoor supply air valve → room.

[0063] However, ducted air conditioners generally use a closed-loop internal circulation inlet and outlet air grille structure for air exchange. This air exchange method has some problems, such as:

[0064] (1) In the relevant solutions, the ducted air conditioner only controls the ambient air quality through a single parameter (such as the outlet air temperature), but ignores the real-time changes in indoor carbon dioxide concentration and humidity, resulting in a dynamic imbalance between temperature, humidity, and air quality. Specifically, when the system starts the cooling function, the outlet air temperature drops rapidly, but due to the lack of coordinated control of outdoor return air, the indoor carbon dioxide concentration cannot drop synchronously. Actual test data shows that after the ducted air conditioner runs continuously for 2 hours, the carbon dioxide concentration can accumulate from the baseline value of 400ppm to more than 1200ppm (far exceeding the WHO health standard of 800ppm), causing headaches, inattention, and cognitive decline in users, especially posing significant health risks to children, the elderly, and other groups.

[0065] (2) In the relevant scheme, there is only an air supply valve in the room and no return air valve, which causes the zoning control to fail and makes it impossible to realize the user's core requirement of independently starting and stopping the room;

[0066] (3) In the relevant schemes, the fresh air system and the air conditioning system of the duct machine are often designed separately, which results in the need for two sets of air duct systems to achieve fresh air intake, which is complex in structure, large in size and high in cost.

[0067] (4) The control logic in the relevant schemes cannot achieve adaptive adjustment of temperature, humidity and indoor air quality, making it impossible for users to enjoy a comfortable temperature while having good indoor air quality. The relevant schemes only focus on temperature regulation and do not include humidity and indoor air quality in the control closed loop, leaving users in a passive state of "cold but unhealthy" for a long time.

[0068] Therefore, the present invention proposes a control method for ducted air conditioners, specifically a control method based on the linkage control of air valves that couples multiple environmental parameters in the room. Through the intelligent linkage of the outlet air valve and the return air valve, such as the intelligent linkage of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), the coordinated regulation of temperature, humidity, and carbon dioxide concentration is achieved. While regulating the room temperature, the indoor air quality is effectively improved, and the humidity is maintained within a comfortable range to meet more user needs and enhance the user experience.

[0069] According to embodiments of the present invention, a control method for a ducted air handling unit is provided, such as... Figure 1 The diagram shows a flowchart of an embodiment of the method of the present invention. The ducted air handling unit includes a return air duct 4, a fan 32, an air guide plate, an upper air outlet valve, and a lower air outlet valve. An outdoor return air valve is provided at the outdoor air inlet of the return air duct 4, and an indoor return air valve is provided at the indoor air inlet of each room on the return air duct 4. The outdoor return air valve provided at the outdoor air inlet of the return air duct 4 is, for example, a second intelligent valve 41 (outdoor return air valve); the indoor return air valve provided at the indoor air inlet of each room on the return air duct 4 is, for example, a third intelligent valve 51 (indoor return air valve) provided at the indoor air inlet of the second room on the return air duct 4. Of course, the ducted air conditioner also includes an outlet duct 2 and a heat exchanger (such as an evaporator 31). An outdoor outlet valve 52 is installed at the outdoor outlet of each room on the return air duct 4, and a first intelligent valve 21 (indoor outlet valve) is installed at the indoor outlet of each room on the outlet duct 2. The first intelligent valve 21 (indoor outlet valve), the outdoor outlet valve, and the second intelligent valve 41 (outdoor return air valve) have the same opening degree to prevent excessive indoor pressure. This addresses the problem in related solutions where the ducted air conditioner only has an outlet valve but no return air valve, resulting in severe airflow short-circuiting, bypassing, and back-mixing, leading to low system energy efficiency. In the solution of this invention, valve linkage enables multi-directional control of outlet and return air, avoiding airflow bypass. In the solution of this invention, as... Figure 1 As shown, the control method of the duct machine includes steps S110 to S120.

[0070] In step S110, after the ducted air conditioner is turned on, for the current room, that is, for the room that needs to be controlled among all the rooms corresponding to the ducted air conditioner that are currently turned on, the air quality parameters of the current room are obtained, the temperature and humidity parameters of the current room are obtained, and the user category of the current room is obtained.

[0071] In step S120, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0072] Figure 13 This is a structural schematic diagram of one embodiment of a ducted air conditioning system. Figure 13 The ducted air conditioner shown includes: an outlet air duct 2, a housing 3, and a return air duct 4 arranged sequentially. The outlet air duct 2 supplies air to a first room 1, and the return air duct 4 supplies air to a second room 5. An evaporator 31 and a fan 32 are disposed in the housing 3 between the outlet air duct 2 and the return air duct 4. A second intelligent air valve 41 (outdoor return air valve) is installed between the return air duct 4 and the outdoor side, through which outdoor air (such as air in the outdoor environment 6) is supplied to the return air duct 4.

[0073] A third intelligent air valve 51 (indoor return air valve) is installed between the return air duct 4 and the second room 5, and an outdoor air outlet valve 52 is installed between the second room 5 and the outdoor side. A return air inlet 33 is installed between the return air duct 4 and the outer casing 3, and an air outlet 22 is installed between the outer casing 3 and the air outlet duct 2. A first intelligent air valve 21 (indoor air outlet valve) is installed between the air outlet duct 2 and the first room 1.

[0074] Each room (e.g., room 1, room 5) is equipped with a temperature sensor, a carbon dioxide sensor, a humidity sensor, a PM2.5 concentration sensor, and a formaldehyde concentration sensor. For example, room 1 is equipped with a temperature sensor 11, a carbon dioxide sensor 12, a humidity sensor 13, a PM2.5 concentration sensor 14, and a formaldehyde concentration sensor 15.

[0075] Figure 14 A schematic diagram showing the airflow direction when the indoor return air valve in a ducted air conditioning unit is opened. Figure 15 This is a schematic diagram of the outdoor return air valve opening mechanism in a ducted air handling unit. Figure 16 This is a schematic diagram showing the structure where both indoor and outdoor return air valves are open in a ducted air handling unit. Figure 14 , Figure 15 , Figure 16 This is a schematic diagram of the airflow circulation structure of a heat exchange system provided in the present invention. (See diagram below.) Figure 14 As shown, humidity sensors, formaldehyde and PM2.5 concentration sensors have been added to the room to more comprehensively monitor the multi-dimensional environment and ensure user comfort and health.

[0076] like Figure 15As shown, independent supply and return air valves are installed in the room, and the fresh air system, namely the second intelligent air valve 41 (outdoor return air valve), and the air conditioning supply system are integrated into one unit. This reduces manufacturing costs while introducing a fresh air system, thereby exchanging the room air with fresh air and ensuring room air quality. Furthermore, when fresh air is introduced, the indoor supply air valve opens to the same degree as the outdoor return air valve, ensuring that the room airflow and pressure are within an appropriate range. The airflow circulation path is: room air → third intelligent air valve 51 (indoor return air valve) → duct unit duct → duct unit fan components → duct unit heat exchange components → duct unit duct → first intelligent air valve 21 (indoor supply air valve) → room. The duct unit is installed on the room ceiling and can be connected to each air valve via ductwork. The fresh air system includes: the second intelligent air valve 41 (outdoor return air valve), the third intelligent air valve 51 (indoor return air valve), and the outdoor supply air valve 52.

[0077] like Figure 16 As shown, placing the fan component and evaporator component in two separate housings reduces overall system resistance and ensures more even airflow distribution as the air passes through the evaporator, avoiding turbulence interference from the fan rotation during heat exchange. Furthermore, the two housings make it easier to achieve a complete seal compared to an internal integrated structure, preventing dust from entering the evaporator from the fan end. Similarly, when bacteria and other impurities accumulate in the evaporator during prolonged operation, this design prevents these impurities from entering the fan end, extending the equipment's lifespan.

[0078] In the solution of this invention, after the ducted air conditioner is turned on, for the current room (i.e., for the room that needs to be controlled among all the rooms corresponding to the ducted air conditioner that are currently turned on), the air quality parameters, temperature and humidity parameters, and user category of the current room are obtained. Based on the air quality parameters, temperature and humidity parameters, and user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving user comfort while effectively ensuring indoor air quality.

[0079] The present invention proposes a control scheme for coupling multiple environmental parameters in a ducted air conditioning room based on the linkage control of air valves. Through the intelligent linkage of the outlet air valve and the return air valve, such as the intelligent linkage of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), a differentiated control strategy based on user categories is designed and a more precise control logic is adopted to achieve dynamic balance of multiple indoor environmental parameters, such as the coordinated regulation of temperature, humidity, and carbon dioxide concentration. While regulating the room temperature, it effectively improves indoor air quality and maintains humidity within a comfortable range to meet more user needs and enhance the user experience.

[0080] In some embodiments, the air quality parameters of the current room include: a first type of parameter and a second type of parameter, which are classified according to the degree of impact of the air quality of the current room on the health of the user; the degree of impact of the first type of parameter of the current room on the health of the user of the current room is greater than the degree of impact of the second type of parameter of the current room on the health of the user of the current room; the first type of parameter of the current room includes formaldehyde content and PM2.5 content, and the second type of parameter of the current room includes CO2 concentration.

[0081] In step S120, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: a process of controlling based on the first type of parameters of the current room.

[0082] The following is combined Figure 2 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention that controls based on the first type of parameters of the current room. It further illustrates the specific process of controlling based on the first type of parameters of the current room in step S120, including steps S210 to S230.

[0083] Step S210: Based on the first type of parameters of the current room, control the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0084] Step S220: If it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, based on the user category of the current room, and according to the second type of parameter of the current room and the temperature and humidity of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0085] Step S230: After setting a time, return to the previous step to re-control at least one of the following based on the current room's user category, the second type of parameters of the current room, and the current room's temperature and humidity: the opening degree of the outdoor return air valve, the opening degree of the current room's indoor return air valve, the rotational speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. The set time is, for example, 5 minutes.

[0086] Figure 12 This is a structural block diagram of an embodiment of a control system for a ducted air conditioning unit room that couples multiple environmental parameters based on the interlocking control of air valves. It illustrates a control method for balancing temperature and carbon dioxide concentration in a ducted air conditioning unit room based on the interlocking control of supply and return air valves. Figure 12 As shown, a control system based on air valve linkage control, coupling multiple environmental parameters in a ducted air conditioning unit room, includes: a ducted air conditioning unit controller, the ducted air conditioning unit itself, an intelligent air valve device, and a temperature sensor (such as...). Figure 13 Temperature sensor 11), humidity sensor (such as...) Figure 13 Humidity sensor 13), carbon dioxide sensor (such as...) Figure 13 The carbon dioxide sensor 12 in the middle); of course, the control system for multiple environmental parameters coupled in the duct air conditioner room based on the linkage control of the air valve can also include: PM2.5 concentration sensor (such as Figure 13 PM2.5 concentration sensor 14), formaldehyde concentration sensor (such as Figure 13 (Formaldehyde concentration sensor 15 in the middle).

[0087] exist Figure 12 In the example shown, the ducted air conditioner body includes core components such as an evaporator and a fan, which are used to realize the cooling or heating cycle and deliver the treated air to the room through the duct.

[0088] The fan unit and evaporator unit are located in two separate, connected housings. During the production of the air conditioner (i.e., ducted unit), threshold parameters such as room temperature, humidity, and CO2 concentration are pre-set in the controller. When the controller receives a command from the user via the wired controller of the ducted unit, it drives the fan to operate at the corresponding speed specified in the command. At this time, indoor air is drawn into the fan unit through the indoor return air valve and then sent to the evaporator unit for cooling / heating. The regulated airflow is finally returned to the indoor space through the room outlet air valve (i.e., indoor outlet air valve).

[0089] To achieve smart home functionality, users can select different types of sensors to install in their rooms. These sensors monitor environmental parameters in real time, and when the controller detects changes in the range of environmental parameters, it will control the operation of smart air valves to balance the comfort and health of the room.

[0090] exist Figure 12 In the example shown, the intelligent air valve device includes: an indoor air outlet valve (such as...) Figure 13 The first intelligent air valve 21), indoor return air valve (such as Figure 13 The third intelligent air valve 51), outdoor air outlet valve (such as...) Figure 13 Outdoor air outlet valve 52), outdoor return air valve (such as...) Figure 13 The second intelligent air valve 41 in the intelligent air valve device is installed at the branch of the air duct. There are three intelligent air valves in the heat exchange room, and an exhaust air duct is set in the room with a corresponding exhaust air valve. The air valve is equipped with a motor drive mechanism and a position sensor, which can realize the precise adjustment of the air valve opening degree and can provide real-time feedback on the opening position information of the air valve.

[0091] exist Figure 12 In the example shown, the temperature sensor is installed inside the room to monitor the room temperature in real time, providing data support for the control of the heat exchange system.

[0092] Humidity sensor: Installed in the room to monitor the humidity level in real time, providing data support for the control of the heat exchange system.

[0093] Carbon dioxide sensor: Installed in the room to monitor the carbon dioxide concentration in real time, providing data support for the control of the heat exchange system.

[0094] PM2.5 and formaldehyde concentration sensors: installed in the room to monitor the PM2.5 and formaldehyde concentration values ​​in the room in real time, providing data support for the control of the heat exchange system.

[0095] exist Figure 12In the example shown, the controller is connected to the air conditioning unit, the intelligent air valve device, the temperature sensor, the humidity sensor, and the carbon dioxide concentration sensor. It is used to receive the room temperature and humidity, carbon dioxide concentration signals, and air valve opening signals, and to perform linkage control on the air valve opening according to the preset control strategy to achieve adaptive adjustment of temperature, humidity, and carbon dioxide concentration.

[0096] Figure 17 This is a schematic diagram of the overall control logic of an embodiment of a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control. Figure 17 As shown, the overall control logic of the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves includes:

[0097] Step S1: Real-time detection and risk assessment of indoor hazardous substances, followed by step S2.

[0098] In step S1, the concentration of harmful substances in the room (such as formaldehyde, PM2.5, etc.) is collected in real time by sensors installed in the room, and the corresponding control strategy is executed in combination with the preset normal health range.

[0099] The real-time collection of harmful substance concentrations in the room is achieved by deploying corresponding sensors in the room. The preset health parameter range is input into the controller motherboard during air conditioner production, and corresponding interfaces are reserved on the motherboard. After the sensors in the room detect the room environmental parameters, they transmit the data to the duct unit controller. The duct unit controller determines whether the threshold for different strategies needs to be executed. When the environmental parameters exceed the threshold, the duct unit controller controls the corresponding air valve to open to the appropriate degree (sensing-judgment-execution).

[0100] Step S2: Initially adjust the valve opening based on the initial operating conditions, and then proceed to step S3.

[0101] In step S2, based on the concentration of harmful substances in the room monitored, the duct air conditioner controller calculates the required opening degree of the corresponding air valve in the room and sends a control command to the intelligent air valve device to drive the air valve motor to adjust the air valve to the corresponding opening position.

[0102] Step S3: Intelligent identification of personnel categories and execution of differentiated control strategies, followed by step S4.

[0103] In step S3, the duct air conditioner controller automatically senses different groups and executes differentiated control strategies through visual AI, millimeter-wave radar and big data analysis to provide the most suitable air environment for the physiological characteristics of the group.

[0104] Step S4 involves monitoring CO2 concentration and humidity, and readjusting the damper opening. Then, proceed with step S4.

[0105] In step S4, after identifying the personnel category, the duct air conditioner controller monitors the CO2 concentration and humidity in the room, and readjusts the opening of the air valve according to the changes in temperature and carbon dioxide concentration to ensure that the CO2 concentration and humidity in the room are within different comfortable and healthy ranges for human beings, and then executes step S5.

[0106] Step S5: Dynamic coupling monitoring of temperature, humidity and CO2, and coordinated control of fans and dampers.

[0107] Since room heat load affects different groups, room temperature is taken into account, and differentiated control strategies are implemented for different user groups. Temperature, humidity, and CO2 concentration are dynamically coupled and monitored, and fans and valves are coordinated and adjusted to improve the comfort and health of different groups.

[0108] Step S6: Periodic detection and dynamic optimization.

[0109] In step S6, every set time (e.g., 5 minutes), the CO2 concentration sensor and the temperature and humidity sensor re-detect the environmental parameters and match each parameter to the preset optimization range.

[0110] In the present invention, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. Specifically, control is based on the first type of parameters of the current room to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, effectively ensuring indoor air quality while improving user comfort. A more precise control logic is adopted to achieve dynamic balance of various indoor environmental parameters, such as the coordinated regulation of temperature, humidity, and carbon dioxide concentration. This effectively improves indoor air quality while regulating room temperature and maintaining humidity within a comfortable range, thereby meeting more user needs and enhancing the user experience.

[0111] Existing solutions for ducted air conditioners rely solely on temperature as a parameter for environmental control, neglecting real-time changes in multi-dimensional environmental parameters such as indoor humidity and carbon dioxide concentration, leading to dynamic imbalances in temperature, humidity, and air quality. This invention incorporates formaldehyde and PM2.5 into a closed-loop control system and implements different control strategies for different user categories, ensuring comfort and health for diverse groups.

[0112] In some implementations, the first type of parameter of the current room includes at least one of the formaldehyde content of the current room and the PM2.5 content of the current room; correspondingly, the preset threshold of the first type of parameter of the current room includes at least one of the preset formaldehyde content and the preset PM2.5 content.

[0113] In step S210, the specific process of controlling the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the first type of parameters of the current room is described in the following exemplary description.

[0114] The following is combined Figure 3 The schematic diagram of an embodiment of the method of the present invention, which controls the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the first type of parameters of the current room, further illustrates the specific process of controlling the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the first type of parameters of the current room in step S210, including steps S310 to S330.

[0115] Step S310: Determine whether the current room's formaldehyde content is less than or equal to a preset formaldehyde content and the current room's PM2.5 content is less than or equal to a preset PM2.5 content; wherein, the preset formaldehyde content is, for example, 0.05 mg / m3 and the preset PM2.5 content is, for example, 15 ug / m3.

[0116] Step S320: If it is determined that the formaldehyde content of the current room is less than or equal to a preset formaldehyde content and the PM2.5 content of the current room is less than or equal to a preset PM2.5 content, then it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room. Under the condition that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, based on the user category of the current room, according to the second type of parameter of the current room and the temperature and humidity of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0117] Step S330: If it is determined that the current room's formaldehyde content is not less than or equal to a preset formaldehyde content, and the current room's PM2.5 content is not less than or equal to a preset PM2.5 content, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree, the opening degree of the current room's indoor return air valve is 0, the speed of the fan 32 is set to a preset enhanced speed, the upper air outlet valve is opened, and the lower air outlet valve is opened. After a period of time, the process returns to re-determine whether the current room's formaldehyde content is less than or equal to a preset formaldehyde content, and the current room's PM2.5 content is not met. The PM2.5 content is less than or equal to the preset PM2.5 content. Until it is determined that the formaldehyde content of the current room is less than or equal to the preset formaldehyde content and the PM2.5 content of the current room is less than or equal to the preset PM2.5 content, based on the user category of the current room, according to the second type of parameters of the current room and the temperature and humidity of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0118] Figure 18 This is a flowchart illustrating the first embodiment of a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control. Figure 19 This is a flowchart illustrating the second embodiment of a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control. Figure 20 This is a flowchart illustrating the third embodiment of a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control. Figure 21 This is a flowchart illustrating the fourth embodiment of a control method for coupling multiple environmental parameters in a duct air conditioning unit room based on valve linkage control. Figure 18 , Figure 19 , Figure 20 and Figure 21 A detailed reference example of the air conditioning system control logic is provided.

[0119] like Figure 18 As shown, a control method for coupling multiple environmental parameters in a ducted air conditioning unit room based on valve linkage control includes:

[0120] Step E1: Start the ducted air handling unit and then proceed to step E2.

[0121] Step E2: Detect the formaldehyde and PM2.5 levels in the room using the area controller, and determine if the formaldehyde level meets the requirements of >0.05 mg / m3 and PM2.5 >15 ug / m3. Based on the result, proceed to step E3 or step E4. The area controller acts as the air conditioning controller for a single room.

[0122] Step E3: If the formaldehyde content is determined to be >0.05mg / m3 and PM2.5 >15ug / m3, the system will forcibly open the fresh air system, i.e., the second intelligent air valve 41 (outdoor return air valve) will be fully opened, the third intelligent air valve 51 (indoor return air valve) will be fully closed, the fan 32 will be set to the enhanced air setting, and both the upper and lower air outlets will be opened until the formaldehyde and PM2.5 content decreases to the normal range, such as until the formaldehyde content ≤0.05mg / m3. 3 And PM2.5 ≤ 15ug / m³ 3 Then proceed to step E4. The upper and lower air outlets of the ducted air conditioner are respectively located on the upper and lower sides of the room wall; the upper and lower air outlet valves are connected through the air ducts. After the formaldehyde and PM2.5 levels drop to normal ranges, outdoor fresh air is completely circulated into the room, while the indoor fresh air containing harmful substances is circulated outdoors.

[0123] Step E4: If the formaldehyde content is determined to be ≤0.05mg / m³ 3 And PM2.5 ≤ 15ug / m³ 3 The area controller will then further detect the personnel category; for details, please refer to [link / reference needed]. Figure 19 , Figure 20 and Figure 21 Related explanations.

[0124] In step E3, if the formaldehyde content is >0.05mg / m3 and PM2.5 is >15ug / m3, it indicates that the formaldehyde and PM2.5 content exceeds the normal range and will seriously affect human health. Therefore, the second intelligent air valve 41 (outdoor return air valve) is fully opened, and the third intelligent air valve 51 (indoor return air valve) is fully closed to allow complete external air circulation. The fan 32 is then set to the enhanced fan speed, and both the upper and lower indoor air outlet valves are opened to increase the fresh air exchange rate and quickly reduce the formaldehyde and PM2.5 content. In step E4, after the harmful substance content returns to the normal range, if the formaldehyde content is ≤0.05mg / m3... 3 And PM2.5 ≤ 15ug / m³ 3 Subsequently, the area controller further detects the personnel category.

[0125] In the solution of the present invention, the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are controlled according to the first type of parameters of the current room to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively ensuring indoor air quality.

[0126] The solution of this invention integrates multi-dimensional environmental sensing modules for temperature and humidity, CO2, formaldehyde, and PM2.5, overcoming the limitations of ducted air conditioners that rely solely on a single temperature parameter for control. This achieves a dynamic balance between indoor air temperature, humidity, and key indicators such as CO2, improving environmental comfort and health quality. Furthermore, the solution employs more precise control logic and periodic dynamic monitoring to form a complete closed loop, resolving issues such as controller recognition failure caused by inappropriate strategies, and ensuring stable operation and precise control of the air conditioning system.

[0127] In some embodiments, the air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the degree of impact of the first category of parameters on the health of the users of the current room is greater than the degree of impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category, classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room.

[0128] In step S120, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. The process also includes: a control process based on the user category of the current room. Specifically, when it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, based on the user category of the current room, and according to the second type of parameter of the current room and the temperature and humidity of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0129] The following is combined Figure 4 The schematic diagram shows an embodiment of the method of the present invention that controls based on the user category of the current room. It further illustrates the specific process of controlling based on the user category of the current room in step S120, including steps S410 to S430.

[0130] Step S410: If the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, determine whether the user category of the current room belongs to the first category or the second category.

[0131] Step S420: If it is determined that the user category of the current room belongs to the first category, then, if the user category of the current room belongs to the first category, firstly, based on the second category parameter of the current room and the indoor humidity of the current room, control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, and control the position of the air guide plate to be in the preset anti-direct blowing position; then, based on the indoor temperature of the current room, control the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve.

[0132] Step S430: If it is determined that the user category of the current room belongs to the second category, then, based on the second category parameters of the current room, combined with the indoor humidity and indoor temperature of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0133] In the solution of the present invention, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. Specifically, the control process is based on the user category of the current room to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0134] In this invention, control is based on the user category of the current room. A more precise control logic and periodic dynamic monitoring form a complete closed loop, ensuring stable operation and precise control of the air conditioning system. In contrast, related solutions typically use a single control logic, lacking personalized identification and response mechanisms for different user groups (such as the elderly and children). This prevents dynamic adjustment of control strategies based on user categories, making it difficult for the system to accommodate the physiological differences of different groups and simultaneously meet diverse comfort and health management needs. This invention addresses this issue by designing a differentiated control strategy based on user categories, resolving the problem of systems failing to consider the physiological differences of different groups and achieving a balance between comfort and health for people of multiple ages.

[0135] In some implementations, the second type of parameter of the current room includes the CO2 concentration of the current room.

[0136] In step S420, if the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in the preset anti-direct blowing position. For the specific process, please refer to the following exemplary description.

[0137] The following is combined Figure 5 The schematic diagram of an embodiment of the method of the present invention, in which, when the category of the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the current room indoor return air valve are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, further illustrates the specific process of step S420 in which, when the category of the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the current room indoor return air valve are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, including: steps S510 to S540.

[0138] Step S510: If the current room user belongs to the first category, control the position of the air guide plate to a preset anti-direct-blow position.

[0139] Step S520: If the current room user's category belongs to the first category, determine whether the current room's CO2 concentration is less than or equal to a first preset CO2 concentration; the first preset CO2 concentration is, for example, 600 ppm.

[0140] Step S530: If the current room user's category belongs to the first category, and if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the indoor humidity of the current room.

[0141] In step S540, if the current room user's category belongs to the first category, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled in a second way according to the indoor humidity of the current room.

[0142] In the solution of the present invention, when the user of the current room belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room. The position of the air guide plate is controlled to be in a preset anti-direct blowing position to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception. While improving the user's physical comfort, the indoor air quality is effectively guaranteed.

[0143] In this invention, a differentiated control strategy based on user categories is designed. In modern home environments, there are various user groups, such as the elderly and children, whose environmental perception varies. Therefore, the duct air conditioner controller is configured with environmental parameter thresholds for different user groups. This, combined with intelligent air valves, solves the problem in related solutions where the system struggles to accommodate the physiological differences of different groups. By setting healthier and more refined environmental threshold ranges for vulnerable groups, the health and comfort of different groups are ensured. For example, because adults are more adaptable to their environment, the threshold ranges for CO2 concentration and temperature differ when only adults are present versus when the elderly and children are present.

[0144] In some embodiments, in step S420, if the current room user's category belongs to the first category, after controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to a preset anti-direct blowing position, the specific process of controlling the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room is described in the following exemplary description.

[0145] The following is combined Figure 6The method of the present invention, as shown, involves controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to a preset anti-direct-blow position, and then controlling the rotation speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve based on the indoor temperature of the current room. This is a schematic flowchart of an embodiment. Further illustrating the specific process in step S420, where the user of the current room belongs to the first category, the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled based on the second type parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to a preset anti-direct-blow position, and then the rotation speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are controlled based on the indoor temperature of the current room, includes steps S610 to S630.

[0146] Step S610: If the current room user belongs to the first category, after controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in the preset anti-direct blowing position, it is determined whether the current operating mode of the duct air conditioner is cooling mode or heating mode.

[0147] In step S620, if the user of the current room belongs to the first category, after controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in the preset anti-direct blowing position, if it is determined that the current operating mode of the duct air conditioner is the cooling mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are first controlled according to the indoor temperature of the current room.

[0148] In step S630, if the user of the current room belongs to the first category, after controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in the preset anti-direct blowing position, if it is determined that the current operating mode of the duct air conditioner is the heating mode, then the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0149] In the solution of the present invention, when the user of the current room belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room. After the position of the air guide plate is controlled to be in the preset anti-direct blowing position, the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room. This ensures that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively protecting indoor air quality.

[0150] In this invention, independent indoor air supply valves, indoor return air valves, and outdoor return air valves are installed in the room. Intelligent valve linkage is achieved through corresponding control logic combined with environmental sensor sensing, thereby maintaining room environmental parameters within a comfortable range for the user. For example, the control method first determines the opening degree of the indoor and outdoor return air valves and the indoor air supply valves based on formaldehyde and PM2.5 levels. When formaldehyde and PM2.5 concentrations are within the normal healthy range, the opening degree of the indoor and outdoor return air valves is then determined by coupling indoor CO2 concentration and humidity. Finally, the opening degree of the indoor air supply valve is determined by temperature. This invention constructs a linkage mechanism between the indoor air supply valve or indoor return air valve and the outdoor fresh air valve, and installs two air supply valves in the room. This solves problems such as airflow short-circuiting and bypassing caused by the lack of a return air valve. This design not only optimizes the system's energy efficiency ratio but also achieves differentiated comfort effects such as shower-like cooling and carpet-like heating.

[0151] In some embodiments, in step S530, if the current room user's category belongs to the first category, and if the CO2 concentration of the current room is determined to be less than or equal to a first preset CO2 concentration, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the indoor humidity of the current room, including:

[0152] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be less than or equal to a first preset CO2 concentration, and if the indoor humidity of the current room is determined to be less than a first preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room; wherein, the first preset humidity is, for example, 40%, and the first proportion is, for example, 50%.

[0153] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be less than or equal to the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening of the outdoor return air valve is controlled to maintain the current value, and the opening of the indoor return air valve of the current room is controlled to maintain the current value; wherein, the first preset humidity is such as 40%, and the second preset humidity is such as 60%.

[0154] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be less than or equal to the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to 0, and the opening degree of the indoor return air valve of the current room is controlled to the preset maximum opening degree of the indoor return air valve of the current room; wherein, the second preset humidity is such as 60%.

[0155] like Figure 19 As shown, the control method for coupling multiple environmental parameters in a ducted air conditioning room based on air valve linkage control further includes: in step E4, if it is determined that the formaldehyde content is ≤0.05mg / m³ 3 And PM2.5 ≤ 15ug / m³ 3 The area controller then further detects the personnel category and proceeds to step 11.

[0156] Step 11: After the area controller further detects the personnel category in step E4, if it identifies that there are infants (0-3 years old) or elderly people (60+) in the room, then proceed to step 12. Different groups of people (such as adults, children, and the elderly) have significant differences in body size, gait, respiratory rate, and limb movements; millimeter-wave radar sensors extract physical features reflecting human physiological states and behavioral patterns by capturing the micro-Doppler effect and point cloud features generated by human movement.

[0157] Step 12: Obtain the indoor CO2 concentration value detected by the CO2 concentration sensor, then execute step 13 or step 14 to adjust the opening of the air valves, such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve). Simultaneously with step 12, the area controller identifies the location of personnel, causing the air deflector to move to prevent cold air from blowing directly on them. The air deflector movement is optional, such as choosing a fixed or movable air deflector. The area controller identifies the location of personnel after controlling the air valves; in heating mode, the hot air does not require protection from cold air. The air deflector is located at the indoor air outlet; as the air deflector moves upward, due to its turbulent effect, the airflow will be directed towards the top of the room. Due to the physical properties of cold air, which is denser than hot air, the cold air will naturally sink, thus achieving a draft-free effect.

[0158] In steps 11 and 12, if it is identified that there are infants (0-3 years old) or elderly people (60+) in the room, it indicates that there is a sensitive group. This sensitive group is more sensitive to cold and temperature. Therefore, the opening of the air valves such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) and the position of the air guide plate are adjusted to prevent cold air from blowing directly on the human body.

[0159] Step 13: If the CO2 concentration is determined to be ≤600ppm, the humidity sensor will further detect the humidity value and perform the following steps (step 131, step 132, or step 133) based on the humidity detection result in the room, and then proceed to step 15.

[0160] Step 131: When the room humidity is detected to be <40%, the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) are opened to 50% of their respective openings. Then, proceed to step 15. This indicates that the CO2 concentration is within the normal range, but the room humidity is low. Therefore, it is necessary to open the second intelligent air valve 41 (outdoor return air valve) to a certain extent to humidify the room.

[0161] Step 132: When the humidity is detected to be 40%≤humidity≤60%, maintain the existing air valve opening unchanged, and then proceed to step 15.

[0162] Step 133: When humidity > 60% is detected, close the second intelligent air valve 41 (outdoor return air valve) and fully open the third intelligent air valve 51 (indoor return air valve), then proceed to step 15.

[0163] This indicates that the CO2 concentration is within the normal range, but the room humidity is high. Since the elderly are more susceptible to dampness, the humidity range is more specific compared to other age groups. Therefore, the second intelligent air valve 41 (outdoor return air valve) is closed and the third intelligent air valve 51 (indoor return air valve) is fully opened to allow the air in the room to circulate internally and dehumidify quickly.

[0164] In the present invention, when the user of the current room belongs to the first category, and when the CO2 concentration of the current room is determined to be less than or equal to a first preset CO2 concentration, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the indoor humidity of the current room. This ensures that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively protecting indoor air quality.

[0165] In the solution of this invention, more environmental parameter sensing sensors are integrated in the room, such as temperature and humidity, CO2 concentration, PM2.5 and formaldehyde concentration sensors. Through corresponding control logic, the problems of duct air conditioners only achieving environmental regulation through a single parameter and controller recognition failure caused by improper strategy in related solutions are solved. This enables the duct air conditioner to achieve coordinated and accurate perception of multi-dimensional environmental parameters in the room, taking into account both user comfort and health.

[0166] In some implementations, in step S540, if the current room user's category belongs to the first category, and if it is determined that the CO2 concentration in the current room is greater than a first preset CO2 concentration, a second control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the indoor humidity of the current room, including:

[0167] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be greater than the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be less than the first preset humidity, then the opening of the outdoor return air valve is controlled to the preset maximum opening of the outdoor return air valve, and the opening of the indoor return air valve of the current room is controlled to be 0; wherein, the first preset humidity is such as 40%.

[0168] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be greater than the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room; wherein, the first preset humidity is such as 40%, the second preset humidity is such as 60%, and the first proportion is such as 50%.

[0169] If the user of the current room belongs to the first category, and if the CO2 concentration of the current room is determined to be greater than the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to a third proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the first proportion and the third proportion is greater than the first proportion; wherein the first preset humidity is, for example, 40%, the second preset humidity is, for example, 60%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0170] like Figure 19 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0171] Step 14: If the detected CO2 concentration is >600ppm, the humidity sensor further detects the humidity value and performs the following steps (step 141, step 142, or step 143) based on the humidity detection result in the room, and then performs step 15.

[0172] This indicates that the CO2 concentration is outside the normal range for children and the elderly. Because children breathe faster and the elderly have weaker cardiopulmonary function, they are more affected by CO2 concentration than other age groups. Therefore, when the CO2 concentration exceeds the normal range, the second intelligent air valve 41 (outdoor return air valve) must be opened to a certain degree to replace the air with fresh air.

[0173] Step 141: If the room humidity is detected to be <40%, the second intelligent air valve 41 (outdoor return air valve) of the room is opened to 100% and the third intelligent air valve 51 (indoor return air valve) is closed. Then proceed to step 15.

[0174] This indicates that the room's CO2 concentration is outside the normal range and the room humidity is too low. Therefore, the second intelligent air valve 41 (outdoor return air valve) is fully opened to allow the room to circulate externally, thereby reducing the room's CO2 concentration and rapidly increasing humidity.

[0175] Step 142: If the humidity is detected to be 40%≤humidity≤60%, the second intelligent air valve 41 (outdoor return air valve) in the room is opened to 50% and the third intelligent air valve 51 (indoor return air valve) is opened to 50%, and then step 15 is executed.

[0176] This indicates that the room CO2 concentration is outside the normal range, while the room humidity is within the normal range. Open the second intelligent air valve 41 (outdoor return air valve) to 50% to simultaneously circulate internal and external air, thereby reducing the room CO2 concentration. When the room environmental parameters change, re-match the parameters to the preset range.

[0177] Step 143: If the humidity is detected to be >60%, the second intelligent air valve 41 (outdoor return air valve) in the room will open to 25% and the third intelligent air valve 51 (indoor return air valve) will open to 75%. Then proceed to step 15.

[0178] This indicates that the room CO2 concentration exceeds the normal range and the room humidity is too high, exceeding the comfort range. The second intelligent air valve 41 (outdoor return air valve) opens to 25% and the third intelligent air valve 51 (indoor return air valve) opens to 75%. Internal and external circulation are carried out simultaneously. Then, step 15 is executed.

[0179] In the solution of this invention, when the user of the current room belongs to the first category, and when it is determined that the CO2 concentration of the current room is greater than a first preset CO2 concentration, a second control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the indoor humidity of the current room. This ensures that the spatial environment is always within the optimal comfort and health range for human perception, effectively guaranteeing indoor air quality while improving user comfort. In the solution of this invention, more precise control logic enables adaptive adjustment of temperature, humidity, and indoor air quality, enhancing the user experience.

[0180] In some embodiments, in step S620, if the current room user's category belongs to the first category, after controlling the opening degree of the outdoor return air valve and the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in a preset anti-direct-blow position, if it is determined that the current operating mode of the duct air conditioner is cooling mode, the first control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, including:

[0181] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, and if the current operating mode of the ducted air conditioner is determined to be cooling mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环 The target temperature of the current room is, for example, the set temperature T. 设 .

[0182] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening degree of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, and if the current operating mode of the ducted air conditioner is determined to be cooling mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a second preset temperature and less than a third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 at the preset normal fan speed is greater than the speed of the fan 32 at the preset lowest fan speed.

[0183] If the user of the current room belongs to the first category, and the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in the preset anti-direct blowing position, and if the current operating mode of the duct air conditioner is determined to be the cooling mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the third preset temperature and less than the fourth preset temperature, then the speed of the fan 32 is controlled to the preset enhanced air setting, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, the third preset temperature is such as 2℃, and the fourth preset temperature is such as 3℃; the speed of the fan 32 under the preset enhanced air setting is greater than the speed of the fan 32 under the preset normal air setting.

[0184] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening degree of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in the preset anti-direct-blow position, and if the current operating mode of the duct air conditioner is determined to be the cooling mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the fourth preset temperature, then the speed of the fan 32 is controlled to the preset enhanced air setting, the upper air outlet valve is controlled to open, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, the third preset temperature is such as 2℃, and the fourth preset temperature is such as 3℃; the speed of the fan 32 under the preset enhanced air setting is greater than the speed of the fan 32 under the preset normal air setting.

[0185] like Figure 19As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0186] Step 15: After implementing the opening strategies for the air valves, such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), under CO2 concentration and humidity conditions, further detect the indoor temperature, and then proceed to step 16 or step 17. Since children and the elderly are more severely affected by temperature, the preset temperature range is more refined compared to other age groups.

[0187] Step 16: The zone controller identifies the room temperature T. 环 If it is in cooling mode, then perform the following steps (steps 161, 162, 163, and 164), and then perform step 18.

[0188] Step 161: When 0℃≤T is detected 环 -T 设 When the temperature is below 1℃, adjust fan 32 to the lowest setting, fully open the upper air outlet valve, and then proceed to step 18. 设 The target room temperature set by the user.

[0189] This indicates that the room's heat load is relatively low. Adjust the fan to 32 at the lowest setting to reduce energy consumption while maintaining the temperature within a comfortable range. Open the top air outlet valve to achieve shower-style cooling and prevent cold air from blowing directly on the room.

[0190] Step 162: When 1℃≤T is detected 环 -T 设 At <2℃, adjust fan 32 to normal speed, fully open the upper air outlet valve, and then proceed to step 18.

[0191] This indicates that the room's heat load is within the second preset range. Adjust the fan from 32 to the normal setting to reduce energy consumption while maintaining the temperature within a comfortable range.

[0192] Step 163: When 2℃≤T is detected 环 -T 设 At temperatures below 3℃, adjust fan 32 to the enhanced air setting, fully open the upper air outlet valve, and then proceed to step 18.

[0193] This indicates that the room's heat load is in the third preset range. Adjust the fan to 32 and set it to the enhanced fan speed to quickly lower the room temperature.

[0194] Step 164, when T is detected 环 -T 设 At ≥3℃, adjust fan 32 to the enhanced air setting, open both the upper and lower air outlet valves, and then proceed to step 18.

[0195] This indicates that the room's heat load is in the fourth preset range. Adjust the fan to the enhanced setting (32) and open the lower air outlet valve to quickly reduce the room temperature.

[0196] In the present invention, when the user of the current room belongs to the first category, the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled according to the second category parameters of the current room and the indoor humidity of the current room. After controlling the position of the air guide plate to a preset anti-direct-blow position, and determining that the current operating mode of the ducted air conditioner is cooling mode, the fan speed, the opening and closing of the upper and lower air outlet valves are controlled according to the indoor temperature of the current room. This ensures that the spatial environment is always within the optimal comfort and health range for human perception, effectively guaranteeing indoor air quality while improving user comfort. In the present invention, periodic dynamic monitoring and control, re-matching parameters to the preset range, and adjusting the valve opening ensure user comfort and environmental cleanliness.

[0197] In some embodiments, in step S630, if the current room user's category belongs to the first category, after controlling the opening degree of the outdoor return air valve and the indoor return air valve of the current room according to the second category parameter of the current room and the indoor humidity of the current room, and controlling the position of the air guide plate to be in a preset anti-direct-blow position, if it is determined that the current operating mode of the duct air conditioner is the heating mode, a second control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, including:

[0198] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, and if the current operating mode of the ducted air conditioner is determined to be heating mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环 The target temperature of the current room is, for example, the set temperature T. 设 .

[0199] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening degree of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, and if the current operating mode of the ducted air conditioner is determined to be heating mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a second preset temperature and less than a third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 at the preset normal fan speed is greater than the speed of the fan 32 at the preset lowest fan speed.

[0200] If the user of the current room belongs to the first category, and the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in the preset anti-direct blowing position, and if the current operating mode of the duct air conditioner is determined to be the heating mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the third preset temperature and less than the fourth preset temperature, then the speed of the fan 32 is controlled to the preset enhanced wind speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, the third preset temperature is such as 2℃, and the fourth preset temperature is such as 3℃; the speed of the fan 32 under the preset enhanced wind speed is greater than the speed of the fan 32 under the preset normal wind speed.

[0201] If the user of the current room belongs to the first category, and based on the second category parameter of the current room and the indoor humidity of the current room, the opening degree of the outdoor return air valve and the indoor return air valve of the current room are controlled, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, and if the current operating mode of the duct unit is determined to be heating mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a fourth preset temperature, then the speed of the fan 32 is controlled to a preset enhanced air setting, the upper air outlet valve is controlled to open, and the lower air outlet valve is controlled to open. The first preset temperature is such as 0℃, the second preset temperature is such as 1℃, the third preset temperature is such as 2℃, and the fourth preset temperature is such as 3℃; the speed of the fan 32 under the preset enhanced air setting is greater than the speed of the fan 32 under the preset normal air setting.

[0202] like Figure 19As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0203] Step 17: The zone controller identifies the room temperature T. 环 If it is in heating mode, then perform the following steps (steps 171, 172, 173, and 174), and then perform step 18.

[0204] Step 171: When 0℃≤T is detected 设 -T 环 When the temperature is below 1℃, adjust the fan 32 to the lowest setting, fully open the lower air outlet valve, and then proceed to step 18.

[0205] This indicates that the room temperature demand is relatively low and the room is in the first preset range of the heating mode. Adjust the fan to 32 at the lowest setting to reduce energy consumption while maintaining the temperature within a comfortable range. Open the bottom air outlet valve to achieve carpet-like heating and improve user comfort.

[0206] Step 172: When 1℃≤T is detected 设 -T 环 At <2℃, adjust fan 32 to normal speed, fully open the lower air outlet valve, and then proceed to step 18.

[0207] Step 173: When 2℃≤T is detected 设 -T 环 At temperatures below 3℃, adjust fan 32 to the enhanced setting, fully open the lower air outlet valve, and then proceed to step 18.

[0208] Step 174, when T is detected 设 -T 环 At ≥3℃, adjust fan 32 to the enhanced air setting, open both the upper and lower air outlet valves, and then proceed to step 18.

[0209] Step 18: Every 5 minutes, the CO2 concentration sensor and temperature and humidity sensor re-detect the environmental parameters and match each parameter to the preset optimization range, then return to step E4.

[0210] In the present invention, when the user of the current room belongs to the first category, the opening of the outdoor return air valve and the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room. After controlling the position of the air guide plate to be in a preset anti-direct-blow position, and when the current operating mode of the ducted air conditioner is determined to be the heating mode, the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room. This ensures that the spatial environment is always in the optimal comfort and health range for human perception, effectively guaranteeing indoor air quality while improving user comfort. Addressing the problem of separate design of the fresh air system and air conditioning system in related solutions, resulting in complex structure, large size, and high cost, the present invention integrates the fresh air system and heat exchange system in the ducted air conditioner, solving the problems of high cost and large space requirements associated with setting up two separate systems in related solutions.

[0211] In some embodiments, the air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the degree of impact of the first category of parameters on the health of the users of the current room is greater than the degree of impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category, classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room.

[0212] In step S120, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. The process also includes: a control process based on a second type of parameter of the current room. Specifically, when the user category of the current room belongs to the second category, based on the second type of parameter of the current room, combined with the indoor humidity and indoor temperature of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

[0213] The following is combined Figure 7 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention that controls based on the second type of parameters of the current room. It further illustrates the specific process of controlling based on the second type of parameters of the current room in step S120, including steps S710 to S730.

[0214] Step S710: Determine whether the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room; if the second type of parameter of the current room includes CO2 concentration, the upper limit of the preset threshold range of the second type of parameter of the current room is, for example, the WHO health standard of 800 ppm.

[0215] Step S720: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, then firstly, based on the second type of parameter of the current room and the indoor humidity of the current room, control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room; then, based on the indoor temperature of the current room, control the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve, and combine the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room.

[0216] Step S730: If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, then first control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room; then control the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room.

[0217] In this invention, based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. Specifically, control is based on the second type of parameters of the current room to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, effectively ensuring indoor air quality while improving user comfort. In this invention, the fresh air system and the air conditioning system are integrated, abandoning the complex architecture of separate designs, simplifying the system structure and reducing manufacturing costs; furthermore, a more precise control logic and periodic dynamic monitoring form a complete closed loop, ensuring the stable operation and precise control of the air conditioning system.

[0218] In some implementations, the second type of parameter of the current room includes the CO2 concentration of the current room.

[0219] In step S720, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, the specific process of controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room is described in the following exemplary description.

[0220] The following is combined Figure 8 The illustrated flowchart of an embodiment of the method of the present invention, in which, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the second type of parameter of the current room and the indoor humidity of the current room, further illustrates the specific process of controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room in step S720, including steps S810 to S830.

[0221] Step S810: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, determine whether the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration; the first preset CO2 concentration is, for example, 600ppm.

[0222] Step S820: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled in a third way according to the indoor humidity of the current room.

[0223] Step S830: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled in a fourth way according to the indoor humidity of the current room.

[0224] In the solution of this invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second type of parameter of the current room and the indoor humidity of the current room. This ensures that the spatial environment is always in the optimal comfort and health coordination range for human perception, effectively guaranteeing indoor air quality while improving user comfort. In the solution of this invention, the use of valve linkage and adaptive adjustment methods for temperature, humidity, and carbon dioxide concentration enhances user comfort while improving the cleanliness of the indoor environment.

[0225] In some implementations, in step S720, if it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, and the specific process of combining the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room is described in the following exemplary description.

[0226] The following is combined Figure 9 In the method of the present invention shown, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled preferentially according to the indoor temperature of the current room. A schematic flowchart of an embodiment combining the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room further illustrates the steps. In step S720, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, and the specific process of combining the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room includes: steps S910 to S930.

[0227] Step S910: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, it is determined whether the current operating mode of the duct air conditioner is cooling mode or heating mode.

[0228] Step S920: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, if it is determined that the current operating mode of the duct air conditioner is cooling mode, then the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are first controlled according to the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room.

[0229] Step S930: If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, if it is determined that the current operating mode of the duct air conditioner is the heating mode, then the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled secondarily according to the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room.

[0230] In the solution of this invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, the fan speed, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room. Combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, it is ensured that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively ensuring indoor air quality.

[0231] In some implementations, in step S820, if it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, a third control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the indoor humidity of the current room, including:

[0232] If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, and if it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion; wherein the first preset humidity is, for example, 40%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0233] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if the CO2 concentration of the current room is determined to be less than or equal to the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to maintain the current value, and the opening degree of the indoor return air valve of the current room is controlled to maintain the current value; wherein, the first preset humidity is such as 40%, and the second preset humidity is such as 60%.

[0234] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if the CO2 concentration of the current room is determined to be less than or equal to the first preset CO2 concentration, and if the indoor humidity of the current room is determined to be greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to 0, and the opening degree of the indoor return air valve of the current room is controlled to the preset maximum opening degree of the indoor return air valve of the current room; wherein, the second preset humidity is such as 60%.

[0235] like Figure 20 As shown, the control method for coupling multiple environmental parameters in a ducted air conditioning room based on air valve linkage control further includes: in step E4, if it is determined that the formaldehyde content is ≤0.05mg / m³ 3 And PM2.5 ≤ 15ug / m³ 3 The area controller then further detects the personnel category and proceeds to step 21.

[0236] Step 21: After the area controller further detects the personnel category in step E4, if it detects that there are no infants or elderly people, and only people of other age groups are present, then proceed to step 22.

[0237] Step 22: Obtain the indoor CO2 concentration value detected by the CO2 concentration sensor, and then execute step 23 or step 24 to adjust the opening of the air valves such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve).

[0238] For this age group, the impact of CO2 concentration is relatively small, so two preset values ​​of 600 ppm and 800 ppm are set for CO2 concentration; the impact of humidity is also small, and the fresh air can play a humidifying role, so the preset value of humidity is set to 40%.

[0239] Step 23: When the CO2 concentration is detected to be ≤600ppm, the humidity sensor further detects the humidity value and performs the following steps (step 231, step 232, or step 233) based on the humidity detection result in the room, and then performs step 25.

[0240] Step 231: If the humidity is detected to be <40%, the second intelligent air valve 41 (outdoor return air valve) in the room opens to 25% and the third intelligent air valve 51 (indoor return air valve) opens to 75%, and then proceed to step 25.

[0241] This indicates that the CO2 concentration in the room is within the normal range, but the humidity is low. Therefore, adjust the second smart air valve 41 (outdoor return air valve) to open to 25% and the third smart air valve 51 (indoor return air valve) to open to 75% to humidify the room. Then proceed to step 25.

[0242] Step 232: If the humidity is detected to be 40%≤60%, maintain the existing air valve opening and then proceed to step 25.

[0243] This indicates the CO2 concentration in the room, therefore the current air valve opening should be maintained unchanged.

[0244] Step 233: If the humidity is detected to be >60%, adjust the second intelligent air valve 41 (outdoor return air valve) of the room to close and the third intelligent air valve 51 (indoor return air valve) to open to 100% opening, and then proceed to step 25.

[0245] In the solution of the present invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and when it is determined that the CO2 concentration of the current room is less than or equal to the first preset CO2 concentration, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled in a third way according to the indoor humidity of the current room, so as to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0246] In some implementations, in step S830, if it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, a fourth control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the indoor humidity of the current room, including:

[0247] If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, and if it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to be a third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a second proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion; wherein the first preset humidity is, for example, 40%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0248] If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, and if it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the first proportion is greater than the second proportion and less than the third proportion; wherein, the first preset humidity is, for example, 40%, the second preset humidity is, for example, 60%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0249] If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and if it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, and if it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room; wherein, the second preset humidity is, for example, 60%.

[0250] like Figure 20 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0251] Step 24: If the detected CO2 concentration is 600ppm < CO2 concentration ≤ 800ppm, the humidity sensor further detects the humidity value and performs the following steps (step 241, step 242, or step 243) based on the humidity detection result in the room, and then performs step 25.

[0252] Step 241: If the detected humidity is <40%, the second intelligent air valve 41 (outdoor return air valve) in the room opens to 75% and the third intelligent air valve 51 (indoor return air valve) opens to 25%. Then, proceed to step 25. The second intelligent air valve 41 (outdoor return air valve) in the room opens to 75% and the third intelligent air valve 51 (indoor return air valve) opens to 25%.

[0253] This indicates that the CO2 concentration in the room is within the second preset range, and the humidity in the room is relatively low. Therefore, the second intelligent air valve 41 (outdoor return air valve) in the room is opened to 75%, and the third intelligent air valve 51 (indoor return air valve) is opened to 20%. The internal and external circulation is carried out simultaneously to reduce the CO2 concentration and humidify the room. Then, step 25 is executed.

[0254] Step 242: If the humidity is detected to be 40%≤60%, the second intelligent air valve 41 (outdoor return air valve) in the room is opened to 50% and the third intelligent air valve 51 (indoor return air valve) is opened to 50%. Then proceed to step 25.

[0255] This indicates that the CO2 concentration in the room is within the second preset range, and the humidity in the room is within the normal range. Therefore, adjust the second intelligent air valve 41 (outdoor return air valve) in the room to open to 50%, and the third intelligent air valve 51 (indoor return air valve) to open to 50%. The internal and external circulation will proceed simultaneously, reducing the CO2 concentration while humidifying the room.

[0256] Step 243: If the humidity is detected to be >60%, adjust the second intelligent air valve 41 (outdoor return air valve) of the room to open to 25% and the third intelligent air valve 51 (indoor return air valve) to open to 75%.

[0257] This indicates that the CO2 concentration in the room is within the second preset range, and the humidity in the room exceeds the normal range. Therefore, the second intelligent air valve 41 (outdoor return air valve) in the room is opened to 25%, and the third intelligent air valve 51 (indoor return air valve) is opened to 75%, so that internal and external circulation can be carried out simultaneously.

[0258] In the solution of the present invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and when it is determined that the CO2 concentration of the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled in a fourth way according to the indoor humidity of the current room, so as to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0259] In some implementations, in step S920, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, when it is determined that the current operating mode of the duct air conditioner is cooling mode, the fan speed, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve are first controlled based on the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including:

[0260] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, and if the current operating mode of the duct unit is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环The target temperature of the current room is, for example, the set temperature T. 设 .

[0261] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter and the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature and the target temperature of the current room is determined to be greater than or equal to a second preset temperature and less than a third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 at the preset normal fan speed is greater than the speed of the fan 32 at the preset lowest fan speed.

[0262] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a third preset temperature, then the speed of the fan 32 is controlled to the preset normal wind speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the indoor return air valve of the current room is controlled to increase by a set level based on the current value; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃; the speed of the fan 32 under the preset enhanced wind speed is greater than the speed of the fan 32 under the preset normal wind speed. Set the gear level, such as gear 1 (e.g., 25% adjustment ratio is the second ratio).

[0263] like Figure 20 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0264] Step 25: The area controller identifies the room temperature. At this point, temperature has higher priority than CO2 and humidity. After executing the opening strategies for air valves such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) under CO2 concentration and humidity conditions, the indoor temperature is further detected, and then steps 26 or 27 are executed. The controller executes the air valve opening quickly. At this time, the indoor CO2 concentration and humidity have not yet reached the preset levels, so they need to be coupled and controlled according to the temperature. Initially, CO2 concentration and humidity only control the preset opening of the outdoor return air and indoor return air; then, the opening of the fan and each air valve is controlled together according to the temperature range.

[0265] For this population group, the impact of CO2 concentration on human health is relatively small when it is within the first or second preset range; in contrast, temperature has a more significant impact on human perception and comfort. Therefore, temperature should be the primary consideration.

[0266] Step 26: The zone controller identifies the room temperature T. 环 If it is in cooling mode, then perform the following steps (steps 261, 262, and 263), and then perform step 28.

[0267] Step 261: If 0℃≤T is detected 环 -T 设 <1℃, adjust fan 32 to low speed, fully open the upper air outlet valve, and then proceed to step 28.

[0268] This indicates that the room's heat load is relatively low. Adjust the fan to 32 at the lowest setting to reduce energy consumption while maintaining the temperature within a comfortable range. Open the top air outlet valve to achieve shower-style cooling and prevent cold air from blowing directly on the room.

[0269] Step 262: If 1℃≤T is detected 环 -T 设 At <2℃, adjust fan 32 to normal speed, fully open the upper air outlet valve, and then proceed to step 28.

[0270] This indicates that the room's heat load is in the second range. Adjust the fan to 32 to the normal setting to reduce energy consumption while maintaining the temperature in a comfortable range. Open the top air outlet valve to achieve shower-style cooling and prevent cold air from blowing directly on the room.

[0271] Step 263, if T is detected 环 -T 设When the temperature is ≥2℃, fan 32 is set to normal speed, and the upper and lower air outlet valves are fully open. At this time, temperature priority is higher than CO2. The corresponding second intelligent air valve 41 (outdoor return air valve) is lowered by 1 level, and the third intelligent air valve 51 (indoor return air valve) is raised by 1 level (level 1, 25% opening). Then, proceed to step 28. Since the outdoor air temperature is higher than the indoor air temperature during cooling, when temperature priority is given, the corresponding second intelligent air valve 41 (outdoor return air valve) is lowered by 1 level, and the third intelligent air valve 51 (indoor return air valve) is raised by 1 level (level 1, 25% opening) to prevent outdoor fresh air from excessively interfering with the indoor temperature, so as to quickly heat the room to the preset temperature.

[0272] This indicates that the room has a high heat load, so the above strategy should be implemented. Since temperature has a higher priority than CO2, and the outdoor fresh air temperature is higher than the indoor air temperature during cooling, opening the second intelligent air valve 41 (outdoor return air valve) will slightly increase the indoor temperature. Therefore, to increase the cooling rate, the second intelligent air valve 41 (outdoor return air valve) should be lowered by 1 level, and the third intelligent air valve 51 (indoor return air valve) should be raised by 1 level (level 1 is 25% opening).

[0273] In the solution of this invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, when it is determined that the current operating mode of the duct air conditioner is the cooling mode, the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening degree of the lower air outlet valve are first controlled according to the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively ensuring indoor air quality.

[0274] In some implementations, in step S930, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, when it is determined that the current operating mode of the duct air conditioner is the heating mode, a second control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve based on the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including:

[0275] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, and if the current operating mode of the duct unit is determined to be heating mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环 The target temperature of the current room is, for example, the set temperature T. 设 .

[0276] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be heating mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 at the preset normal fan speed is greater than the speed of the fan 32 at the preset lowest fan speed.

[0277] If the second type of parameter of the current room is determined to be less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, and after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room based on the second type of parameter of the current room and the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be heating mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a third preset temperature, then the fan speed of the fan 32 is controlled to the preset normal fan speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the indoor return air valve of the current room is controlled to increase by a set level based on the current value. The first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃; the fan speed of the fan 32 under the preset enhanced fan speed is greater than the fan speed of the fan 32 under the preset normal fan speed. Set the gear level, such as gear 1 (e.g., 25% adjustment ratio is the second ratio).

[0278] like Figure 20 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0279] Step 27: The zone controller identifies the room temperature T. 环 If it is in heating mode, then perform the following steps (steps 271, 272, and 273), and then perform step 28.

[0280] Step 271: If 0℃≤T is detected 环 -T 设 <1℃, adjust fan 32 to low speed, fully open the lower air outlet valve, and then proceed to step 28.

[0281] This indicates that the room's heating demand is relatively low. Adjust the fan to its lowest setting (32) to reduce energy consumption while maintaining the temperature within a comfortable range. Open the bottom air outlet valve to achieve blanket heating and improve user comfort.

[0282] Step 271: If 1℃≤T is detected 设 -T 环 At <2℃, adjust fan 32 to normal speed, fully open the lower air outlet valve, and then proceed to step 28.

[0283] This indicates that the room temperature is in the second range. Adjust the fan to 32 to the normal setting to maintain the temperature in the comfortable range. Open the lower air outlet valve to achieve carpet-like heating and improve user comfort.

[0284] Step 271, if T is detected 设 -T 环≥2℃, adjust fan 32 to normal speed, and fully open the upper and lower air outlet valves. At this time, the temperature priority is higher than CO2. Adjust the corresponding second intelligent air valve 41 (outdoor return air valve) down by 1 level and the third intelligent air valve 51 (indoor return air valve) up by 1 level (level 1 is 25% opening). Then proceed to step 28.

[0285] Step 28: Every 5 minutes, the CO2 concentration sensor and temperature and humidity sensor re-detect the environmental parameters and match each parameter to the preset optimization range, then return to step E4.

[0286] In the solution of this invention, when it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, when it is determined that the current operating mode of the duct air conditioner is the heating mode, the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening degree of the lower air outlet valve are controlled in a second way according to the indoor temperature of the current room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively ensuring indoor air quality.

[0287] In this invention, for air-conditioning shutdown, independently driveable air outlet valves and indoor return air valves are simultaneously installed in the room, and an outdoor return air valve is added to the existing air duct to achieve an integrated design. An exhaust pipe is also installed to connect the room to the outdoor air, and an outdoor air outlet valve is added. The air conditioner in the room is then controlled via an air duct controller to implement "air outlet-return air valve linkage." Temperature, humidity, carbon dioxide concentration, formaldehyde concentration, and PM2.5 concentration are incorporated into the control closed loop. By identifying different user categories and implementing differentiated control strategies, a single air duct unit can adaptively adjust room temperature, humidity, and indoor air quality. Through periodic dynamic monitoring and feedback control, parameters are continuously matched to the preset optimization range, and the opening of each valve is adjusted in a timely manner to ensure that the spatial environment is always in the optimal comfort and health range for human perception. This improves user comfort while effectively ensuring indoor air quality and enhancing the user experience.

[0288] In some implementations, the second type of parameter of the current room includes: the CO2 concentration of the current room; the upper limit of the preset threshold range of the second type of parameter of the current room includes: a second preset CO2 concentration.

[0289] In step S730, if it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the indoor humidity of the current room, including:

[0290] If it is determined that the current CO2 concentration in the room is greater than the second preset CO2 concentration, then:

[0291] If it is determined that the indoor humidity of the current room is less than a first preset humidity, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to 0; wherein, the first preset humidity is, for example, 40%. The second preset CO2 concentration is, for example, 800ppm.

[0292] If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a second proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion; wherein, the first preset humidity is, for example, 40%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0293] If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the first proportion is greater than the second proportion and less than the third proportion; wherein, the first preset humidity is, for example, 40%, the second preset humidity is, for example, 60%, the first proportion is, for example, 50%, the second proportion is, for example, 25%, and the third proportion is, for example, 75%.

[0294] like Figure 21 As shown, the control method for coupling multiple environmental parameters in a ducted air conditioning room based on air valve linkage control further includes: in step E4, if it is determined that the formaldehyde content is ≤0.05mg / m³ 3 And PM2.5 ≤ 15ug / m³ 3 The area controller then further detects the personnel category and proceeds to step 31.

[0295] Step 31: After the area controller further detects the personnel category in step E4, if it detects that there are no infants or elderly people, and only people of other age groups are present, then proceed to step 32.

[0296] Step 32: Obtain the indoor CO2 concentration value detected by the CO2 concentration sensor, and then execute step 33 to adjust the opening of the air valves such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve).

[0297] For this age group, the impact of CO2 concentration is relatively small, so two preset values ​​of 600ppm and 800ppm are set for CO2 concentration; the impact of humidity is also small, and the fresh air can play a humidifying role, so the preset value of humidity is set to 40%.

[0298] Step 33: If the detected CO2 concentration is >800ppm, the humidity sensor further detects the humidity value and performs the following steps (step 331, step 332, or step 333) based on the humidity detection result in the room, and then performs step 34.

[0299] Step 331: If the humidity is <40%, the second intelligent air valve 41 (outdoor return air valve) in the room is opened to 100% and the third intelligent air valve 51 (indoor return air valve) is closed. Then proceed to step 34.

[0300] At this point, it indicates that the CO2 concentration is in the third preset range and the humidity is low. Therefore, adjust the room's second smart air valve 41 (outdoor return air valve) to open to 100% and close the third smart air valve 51 (indoor return air valve) to allow the room to circulate externally, thereby reducing the CO2 concentration and increasing the humidity. Then, proceed to step 34.

[0301] Step 332: If 40% ≤ humidity ≤ 60%, the second intelligent air valve 41 (outdoor return air valve) in the room opens to 75% and the third intelligent air valve 51 (indoor return air valve) opens to 25%. Then proceed to step 34.

[0302] Step 333: If the humidity is >60%, the second intelligent air valve 41 (outdoor return air valve) in the room opens to 50% and the third intelligent air valve 51 (indoor return air valve) opens to 50%, then proceed to step 34.

[0303] In the solution of the present invention, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the indoor humidity of the current room to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort and effectively ensuring indoor air quality.

[0304] In some implementations, in step S730, if it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, the specific process of controlling the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room is described in the following exemplary description.

[0305] The following is combined Figure 10 The illustrated method of the present invention, in the case where it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, first controls the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, and then controls the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room. This schematic diagram further illustrates the specific process in step S730 where, in the case where it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the indoor humidity of the current room, and then the rotation speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room. This includes steps S1010 to S1030.

[0306] Step S1010: If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the indoor humidity of the current room, it is determined whether the current operating mode of the duct unit is cooling mode or heating mode.

[0307] Step S1020: If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the indoor humidity of the current room, if it is determined that the current operating mode of the duct air conditioner is the cooling mode, then the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0308] Step S1030: If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the indoor humidity of the current room, if it is determined that the current operating mode of the duct air conditioner is the heating mode, then the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

[0309] In the solution of this invention, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are first controlled according to the indoor humidity of the current room, and then the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room. This ensures that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively protecting indoor air quality.

[0310] In some implementations, step S1020, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the indoor humidity of the current room, and when it is determined that the current operating mode of the duct air conditioner is cooling mode, performs a third control on the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, including:

[0311] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环 The target temperature of the current room is, for example, the set temperature T. 设 .

[0312] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 under the preset normal fan speed is greater than the speed of the fan 32 under the preset lowest fan speed.

[0313] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be cooling mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a third preset temperature, then the speed of the fan 32 is controlled to the preset enhanced air setting, and the upper air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃; the speed of the fan 32 under the preset enhanced air setting is greater than the speed of the fan 32 under the preset normal air setting.

[0314] like Figure 21 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0315] Step 34: The area controller identifies the room temperature. At this point, CO2 concentration takes precedence. After executing the opening strategies for air valves such as the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) under CO2 concentration and humidity conditions, the indoor temperature is further detected, and then step 35 or step 36 is executed. CO2 concentration priority: The air valve control logic that previously coupled CO2 concentration and humidity judgment remains unchanged. Since the health of the elderly and children is of paramount importance, CO2 concentration is prioritized for the elderly and children.

[0316] This indicates that the CO2 concentration in the room is within the third preset range, which has a relatively large impact on human health; in contrast, temperature has a smaller impact on human perception and comfort. Therefore, CO2 concentration should be the primary consideration, and the second intelligent air valve 41 (outdoor return air valve) must be opened to allow fresh air to be exchanged.

[0317] Step 35: The zone controller identifies the room temperature T. 环 If it is in cooling mode, then perform the following steps (steps 351, 352, and 353), and then perform step 37.

[0318] Step 351: If 0≤T is detected 环 -T 设 <1℃, adjust fan 32 to low speed, fully open the upper air outlet valve, and then proceed to step 37.

[0319] This indicates that the room's heat load demand is relatively low. The fan 32 is set to the lowest setting, and the upper air outlet valve is opened to reduce energy consumption while achieving cooling during showering and preventing cold air from blowing directly on the room.

[0320] Step 352: If 1℃≤T is detected 环 -T 设 At <2℃, adjust fan 32 to normal speed, fully open the upper air outlet valve, and then proceed to step 37.

[0321] Step 353, if T is detected 环 -T 设 At ≥2℃, adjust fan 32 to normal speed, fully open the upper and lower air outlet valves, and then proceed to step 37.

[0322] At this time, the CO2 concentration has a higher priority, and the heat exchange rate cannot be increased by reducing the opening of the second intelligent air valve 41 (outdoor return air valve).

[0323] In the solution of this invention, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, and when it is determined that the current operating mode of the duct air conditioner is the cooling mode, a third control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0324] In the solution of this invention, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, and when it is determined that the current operating mode of the duct air conditioner is the cooling mode, a third control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0325] In some implementations, step S1030, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room according to the indoor humidity of the current room, and when it is determined that the current operating mode of the duct air conditioner is the heating mode, performs a fourth control on the speed of the fan 32, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, including:

[0326] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct unit is determined to be heating mode, if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan 32 is controlled to the preset lowest fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the indoor temperature of the current room is such as the indoor ambient temperature T. 环 The target temperature of the current room is, for example, the set temperature T. 设 .

[0327] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be heating mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan 32 is controlled to the preset normal fan speed, and the lower air outlet valve is controlled to open; the first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃. The speed of the fan 32 at the preset normal fan speed is greater than the speed of the fan 32 at the preset lowest fan speed.

[0328] If the second type of parameter of the current room is determined to be greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening of the outdoor return air valve and the indoor return air valve of the current room according to the indoor humidity of the current room, and if the current operating mode of the duct air conditioner is determined to be heating mode, and if the absolute value of the temperature difference between the indoor temperature of the current room and the target temperature of the current room is determined to be greater than or equal to a third preset temperature, then the speed of the fan 32 is controlled to the preset enhanced air setting, and the bottom air outlet valve is controlled to open. The first preset temperature is such as 0℃, the second preset temperature is such as 1℃, and the third preset temperature is such as 2℃; the speed of the fan 32 under the preset enhanced air setting is greater than the speed of the fan 32 under the preset normal air setting. In heating mode, the bottom air outlet is turned on, providing carpet-like heating, allowing the heat flow to rise by physical properties.

[0329] like Figure 21 As shown, the control method for coupling multiple environmental parameters in the duct air conditioning room based on the interlocking control of air valves also includes:

[0330] Step 36: The zone controller identifies the room temperature T. 环 If it is in heating mode, then perform the following steps (steps 361, 362, and 363), and then perform step 37.

[0331] Step 361: If 0≤T is detected 环 -T 设 <1℃, adjust fan 32 to low speed, fully open the lower air outlet valve, and then proceed to step 37.

[0332] This indicates that the room's heating demand is relatively low. Set the fan to low speed (32) and open the bottom air outlet valve to achieve comprehensive heating while reducing energy consumption, thus improving user comfort.

[0333] Step 362: If 1℃≤T is detected 设 -T环 At <2℃, adjust fan 32 to normal speed, fully open the lower air outlet valve, and then proceed to step 37.

[0334] Step 363, if T is detected 设 -T 环 At ≥2℃, adjust fan 32 to normal speed, fully open the upper and lower air outlet valves, and then proceed to step 37.

[0335] Step 37: Every 5 minutes, the CO2 concentration sensor and temperature and humidity sensor re-detect the environmental parameters and match each parameter to the preset optimization range, then return to step E4.

[0336] In the solution of this invention, when it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, and when it is determined that the current operating mode of the duct air conditioner is the heating mode, a fourth control is performed on the speed of the fan 32, the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the indoor temperature of the current room, to ensure that the spatial environment is always in the optimal comfort and health coordination range for human perception, thereby improving the user's physical comfort while effectively ensuring indoor air quality.

[0337] In this invention, an independently operable air outlet valve and a third intelligent air valve 51 (indoor return air valve) are simultaneously installed in the room, and a second intelligent air valve 41 (outdoor return air valve) is added to the existing air duct to achieve an integrated design. An exhaust pipe is also installed to connect the room to the outdoor air and an outdoor air outlet valve is added. When the third intelligent air valve 51 (indoor return air valve) is opened, the first intelligent air valve 21 (indoor air outlet valve) opens simultaneously, and the opening degree of the first intelligent air valve 21 (indoor air outlet valve) is consistent with that of the indoor return air valve. The air outlet valve and return air valve in the operating room are then linked and controlled by a zone controller. The system incorporates temperature, humidity, carbon dioxide concentration, formaldehyde concentration, and PM2.5 concentration into a closed-loop control system. By identifying different user categories and implementing differentiated control strategies, a single ducted air conditioner can adaptively adjust room temperature, humidity, and indoor air quality. Through periodic dynamic monitoring and feedback control, it continuously matches each parameter to the preset optimization range and adjusts the opening of each air valve in a timely manner. This ensures that the spatial environment is always in the optimal comfort and health range for human perception, effectively protecting indoor air quality while improving user comfort.

[0338] Using the technical solution of this embodiment, for a ducted air conditioner, after the ducted air conditioner is turned on, for the current room (i.e., for the room that needs to be controlled among all the rooms corresponding to the ducted air conditioner that are currently turned on), the air quality parameters, temperature and humidity parameters, and user category of the current room are obtained; based on the air quality parameters, temperature and humidity parameters, and user category of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. Therefore, by controlling at least one of the following based on indoor air quality parameters, temperature and humidity parameters, and personnel categories (such as the degree of protection required), the opening degree of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), the fan speed of the fan 32, the air outlet direction (e.g., adjusting the air outlet direction by the position of the air guide plate), and the air outlet path (e.g., adjusting the air outlet path by opening and closing the upper and lower air outlet valves), more user needs (such as comfort needs, health needs, etc.) can be met, thus improving the user experience. This ducted air conditioner is an energy-saving air conditioner.

[0339] Specifically, in the solution of this invention, for a ducted air conditioner, a fan 31 and a heat exchanger 32 are sequentially arranged between the return air duct 4 and the outlet air duct 2 of the ducted air conditioner; a second intelligent air valve 41 (outdoor return air valve) is provided at the outdoor air inlet of the return air duct 4 of the ducted air conditioner, that is, a second intelligent air valve 41 (outdoor return air valve) is provided at the inlet of the outdoor side leading to the return air duct 4 of the ducted air conditioner; a third intelligent air valve 51 (indoor return air valve) is provided at the indoor return air inlet of the return air duct 4 of the ducted air conditioner, that is, a third intelligent air valve 51 (indoor return air valve) is provided at the indoor return air inlet of each room leading to the ducted air conditioner. A third intelligent air valve 51 (indoor return air valve) is installed at the inlet of the return air duct 4; an air guide plate and a first intelligent air valve 21 (indoor air outlet valve) are installed at the indoor air outlet of the air outlet duct 2 of the air duct unit. The first intelligent air valve 21 (indoor air outlet valve) includes an upper air outlet valve and a lower air outlet valve. The air guide plate is used to adjust the overall air outlet direction of the air duct unit, and the upper and lower air outlet valves are used to adjust the overall air outlet path of the air duct unit. The upper and lower air outlet valves are used to adjust the overall air outlet path and direction of the air duct unit, and the air guide plate can finely adjust the air outlet direction of the unit.The controller of the ducted air conditioner (such as a zone controller) controls the second intelligent air valve 41 (outdoor return air valve), the fan 32, the overall air outlet direction and path of the ducted air conditioner, and the third intelligent air valve 51 (indoor return air valve) for the currently operating room. Specifically, the first step is to detect the content of harmful substances (such as formaldehyde and PM2.5) in the currently operating room. If the content of harmful substances exceeds the corresponding normal range, the second intelligent air valve 41 (outdoor return air valve) is fully opened, the third intelligent air valve 51 (indoor return air valve) is fully closed, and the fan speed of the fan 32 is adjusted to increase the airflow. The first step is to open both the upper and lower air outlet valves of the ducted air conditioner until the concentration of harmful substances drops to a normal range. The second step is to identify whether the people in the room belong to a group requiring protection (such as infants, the elderly, etc.). If the people in the room belong to this group, the opening of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) are controlled based on the room's CO2 concentration and humidity levels. Simultaneously, the ducted air conditioner's anti-cold air mechanism is activated (e.g., controlling the air guide plate to move to a position to prevent direct cold air blowing). Then, the fan speed of fan 32 and the opening and closing of the upper and lower air outlet valves are controlled based on the room temperature. If the people in the room do not belong to this group... If the CO2 concentration in the room is low, the fan speed and the opening and closing of the upper and lower air outlet valves of the fan 32 will be controlled first based on the room temperature. Then, the opening of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) will be controlled based on the room CO2 concentration and humidity. If the people in the room are not among the people to be included, if the CO2 concentration in the room is high, the opening of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve) will be controlled first based on the room CO2 concentration and humidity. Then, the fan speed and the opening and closing of the upper and lower air outlet valves of the fan 32 will be controlled based on the room temperature. The system controls the opening and closing of the lower air outlet valve; thereby, based on indoor air quality parameters (such as formaldehyde content, PM2.5 content, CO2 concentration), temperature and humidity parameters (such as indoor temperature and humidity), and the level of protection required for personnel (such as whether they are infants or the elderly), it controls the opening degree of the second intelligent air valve 41 (outdoor return air valve) and the third intelligent air valve 51 (indoor return air valve), the fan speed of the fan 32, the air outlet direction (such as adjusting the air outlet direction by adjusting the air guide plate position), and the air outlet path (such as adjusting the air outlet path by opening and closing the upper and lower air outlet valves), to meet more user needs (such as comfort needs, health needs, etc.) and improve the user experience. This ducted air conditioner is an energy-saving air conditioner.

[0340] According to an embodiment of the present invention, a control device for a ducted air conditioner corresponding to the control method for the ducted air conditioner is also provided. See also Figure 11 The diagram shows a structural schematic of an embodiment of the device of the present invention. This ducted air conditioner belongs to the category of energy-saving air conditioners. The control device of the ducted air conditioner may include: an acquisition unit 102 and a control unit 104.

[0341] The acquisition unit 102 is configured to, after the ducted air conditioner is turned on, acquire the air quality parameters, temperature and humidity parameters, and user category of the current room (i.e., the room that needs to be controlled among all rooms corresponding to the ducted air conditioner that are currently powered on) for the current room. The specific functions and processing of this acquisition unit 102 are described in step S110.

[0342] The control unit 104 is configured to control at least one of the following based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan 32, the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. For the specific functions and processing of this control unit 104, please refer to step S120.

[0343] In the solution of this invention, through the intelligent linkage of the air outlet valve and the air return valve, such as the intelligent linkage of the second intelligent valve 41 (outdoor air return valve) and the third intelligent valve 51 (indoor air return valve), a differentiated control strategy based on user categories is designed and a more precise control logic is adopted to achieve dynamic balance of various indoor environmental parameters, such as achieving coordinated regulation of temperature, humidity, and carbon dioxide concentration. While regulating the room temperature, it effectively improves indoor air quality and maintains humidity within a comfortable range to meet more user needs and enhance user experience.

[0344] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0345] According to an embodiment of the present invention, a ducted air conditioner corresponding to a control device for a ducted air conditioner is also provided. This ducted air conditioner may include the control device described above. This ducted air conditioner belongs to the category of energy-saving air conditioners.

[0346] Since the processing and functions implemented by the duct machine in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned devices, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0347] According to an embodiment of the present invention, a computer program product corresponding to the control method of the duct machine is also provided, including a computer program that, when executed by a processor, implements the steps of the control method of the duct machine described above.

[0348] Since the processing and functions implemented by the product in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0349] According to an embodiment of the present invention, a storage medium corresponding to the control method for a ducted air conditioner is also provided. The storage medium includes a stored program, wherein, when the program is executed, the device where the storage medium is located executes the steps of the control method for the ducted air conditioner described above.

[0350] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0351] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0352] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control method for a ducted air conditioner, characterized in that, The ducted air handling unit includes a return air duct (4), a fan (32), an air guide plate, an upper air outlet valve, and a lower air outlet valve. An outdoor return air valve is installed at the outdoor air inlet of the return air duct (4), and an indoor return air valve is installed at the indoor air outlet of each room on the return air duct (4). The control method of the ducted air handling unit includes: After the ducted air conditioner is turned on, the air quality parameters, temperature and humidity parameters, and user category of the current room are obtained for the current room. Based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

2. The control method for the duct air conditioner according to claim 1, characterized in that, The air quality parameters of the current room include: a first category of parameters and a second category of parameters, which are classified according to the degree of impact of the air quality of the current room on the health of the user; the degree of impact of the first category of parameters of the current room on the health of the user of the current room is greater than the degree of impact of the second category of parameters of the current room on the health of the user of the current room. Based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: Based on the first type of parameters of the current room, control the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve. If the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, based on the user category of the current room, and according to the second type of parameter of the current room and the temperature and humidity of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve; After a set time, return to control at least one of the following based on the user category of the current room, according to the second type parameter of the current room and the temperature and humidity of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

3. The control method for the duct air conditioner according to claim 2, characterized in that, The first type of parameter of the current room includes at least one of the formaldehyde content of the current room and the PM2.5 content of the current room; correspondingly, the preset threshold of the first type of parameter of the current room includes at least one of the preset formaldehyde content and the preset PM2.5 content. Based on the first type of parameters of the current room, controlling the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve includes: Determine whether the current room's formaldehyde content is less than or equal to a preset formaldehyde content, and the current room's PM2.5 content is less than or equal to a preset PM2.5 content; If it is determined that the formaldehyde content of the current room is less than or equal to the preset formaldehyde content and the PM2.5 content of the current room is less than or equal to the preset PM2.5 content, then it is determined that the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room. If it is determined that the current room's formaldehyde content is less than or equal to the preset formaldehyde content and the current room's PM2.5 content is less than or equal to the preset PM2.5 content, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree of the outdoor return air valve, the opening degree of the current room's indoor return air valve is 0, the speed of the fan (32) is the preset enhanced wind speed, the upper air outlet valve is opened, and the lower air outlet valve is opened. After a period of time, the process returns to re-determine whether the current room's formaldehyde content is less than or equal to the preset formaldehyde content and the current room's PM2.5 content is less than or equal to the preset PM2.5 content.

4. The control method for the duct machine according to any one of claims 1 to 3, characterized in that, The air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the impact of the first category of parameters on the health of the users of the current room is greater than the impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category, classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room; Based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, and further include: If the first type of parameter of the current room meets the preset threshold of the first type of parameter of the current room, determine whether the user category of the current room belongs to the first category or the second category; If it is determined that the user category of the current room belongs to the first category, then firstly, based on the second category parameter of the current room and the indoor humidity of the current room, control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, and control the position of the air guide plate to be in the preset anti-direct blowing position; then, based on the indoor temperature of the current room, control the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve; If it is determined that the user category of the current room belongs to the second category, then based on the second category parameters of the current room, combined with the indoor humidity and indoor temperature of the current room, at least one of the following is controlled: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

5. The control method for the duct machine according to claim 4, characterized in that, in, The second type of parameter for the current room includes: the CO2 concentration of the current room; If the current room user belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve are controlled according to the second category parameter of the current room and the indoor humidity of the current room, and the position of the air guide plate is controlled to be in a preset anti-direct-blow position, including: The position of the air guide plate is controlled to be in a preset anti-direct-blow position; Determine whether the current CO2 concentration in the room is less than or equal to a first preset CO2 concentration; If it is determined that the CO2 concentration in the current room is less than or equal to the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve in the current room are controlled according to the indoor humidity of the current room. If it is determined that the CO2 concentration in the current room is greater than the first preset CO2 concentration, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve in the current room are controlled in a second way according to the indoor humidity of the current room. And / or, When the user of the current room belongs to the first category, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the second category parameter of the current room and the indoor humidity of the current room. After controlling the position of the air guide plate to be in the preset anti-direct blowing position, the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, including: Determine whether the current operating mode of the ducted air conditioner is cooling mode or heating mode; If the current operating mode of the duct air conditioner is determined to be the cooling mode, then the first control is performed on the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve according to the current indoor temperature of the room. If the current operating mode of the duct air conditioner is determined to be the heating mode, then the rotation speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled in a second way according to the current indoor temperature of the room.

6. The control method for a ducted air conditioner according to claim 5, characterized in that, in, Based on the current indoor humidity of the room, a first control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: If it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room. If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening of the outdoor return air valve is controlled to maintain the current value, and the opening of the indoor return air valve of the current room is controlled to maintain the current value. If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to 0, and the opening degree of the indoor return air valve of the current room is controlled to the preset maximum opening degree of the indoor return air valve of the current room. And / or, Based on the current indoor humidity of the room, a second control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: If it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to 0. If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room. If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the first proportion and the third proportion is greater than the first proportion. And / or, Based on the current room temperature, the first control is performed on the rotation speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the third preset temperature and less than the fourth preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the fourth preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, the upper air outlet valve is controlled to open, and the lower air outlet valve is controlled to open. And / or, Based on the current room temperature, a second control is performed on the rotation speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the lower air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the lower air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the third preset temperature and less than the fourth preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, and the lower air outlet valve is controlled to open. If the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is determined to be greater than or equal to the fourth preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, the upper air outlet valve is controlled to open, and the lower air outlet valve is controlled to open.

7. The control method for a ducted air handling unit according to any one of claims 1 to 6, characterized in that, The air quality parameters of the current room include: a first category of parameters and a second category of parameters, classified according to the degree of impact of the air quality of the current room on the health of the users; the impact of the first category of parameters on the health of the users of the current room is greater than the impact of the second category of parameters on the health of the users of the current room; the user category of the current room includes: a first category and a second category, classified according to the degree of protection required by the users of the current room, wherein the degree of protection required by the users of the current room under the first category is greater than the degree of protection required by the users of the current room under the second category; the temperature and humidity parameters of the current room include: the indoor temperature of the current room and the indoor humidity of the current room; Based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room, control at least one of the following: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotation speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, and further include: Determine whether the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room; If it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, then firstly, based on the second type of parameter of the current room and the indoor humidity of the current room, control the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room; then, based on the indoor temperature of the current room, control the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve, and combine the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room; If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, then the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled according to the indoor humidity of the current room; then the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room.

8. The control method for the duct air conditioner according to claim 7, characterized in that, in, The second type of parameter for the current room includes: the CO2 concentration of the current room; If the current room user belongs to the second category, and if the second category parameter of the current room is determined to be less than or equal to the upper limit of a preset threshold range of the second category parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled based on the second category parameter of the current room and the indoor humidity of the current room, including: Determine whether the current CO2 concentration in the room is less than or equal to a first preset CO2 concentration; If it is determined that the CO2 concentration in the current room is less than or equal to the first preset CO2 concentration, then the opening of the outdoor return air valve and the opening of the indoor return air valve in the current room are controlled in a third way according to the indoor humidity of the current room. If it is determined that the CO2 concentration in the current room is greater than the first preset CO2 concentration and less than or equal to the second preset CO2 concentration, then the opening of the outdoor return air valve and the opening of the indoor return air valve in the current room are controlled in a fourth way according to the indoor humidity of the current room. And / or, When it is determined that the second type of parameter of the current room is less than or equal to the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the second type of parameter of the current room and the indoor humidity of the current room, the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, and combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: Determine whether the current operating mode of the ducted air conditioner is cooling mode or heating mode; If the current operating mode of the duct air conditioner is determined to be the cooling mode, then the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled first based on the current indoor temperature of the room, combined with the opening of the outdoor return air valve and the opening of the indoor return air valve of the current room. If the current operating mode of the ducted air conditioner is determined to be the heating mode, then based on the current indoor temperature of the room, combined with the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, the second control is performed on the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve.

9. The control method for a ducted air conditioner according to claim 8, characterized in that, in, Based on the current indoor humidity of the room, a third control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: If it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion. If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening of the outdoor return air valve is controlled to maintain the current value, and the opening of the indoor return air valve of the current room is controlled to maintain the current value. If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to 0, and the opening degree of the indoor return air valve of the current room is controlled to the preset maximum opening degree of the indoor return air valve of the current room. And / or, Based on the current indoor humidity of the room, a fourth control is performed on the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room, including: If it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to be the third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be the second proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion. If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the first proportion is greater than the second proportion and less than the third proportion. If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a second proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a third proportion of the preset maximum opening degree of the indoor return air valve of the current room. And / or, The first control is based on the current room temperature, combined with the opening degree of the outdoor return air valve and the opening degree of the current room indoor return air valve, to control the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve, including: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the third preset temperature, then the fan (32) speed is controlled to the preset normal wind speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the current room's indoor return air valve is controlled to increase by a set level based on the current value. And / or, The second control is performed on the fan speed (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, based primarily on the current room temperature and in conjunction with the opening of the outdoor return air valve and the current room indoor return air valve. This includes: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the lower air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the lower air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to a third preset temperature, then the fan (32) speed is controlled to the preset normal wind speed, the upper air outlet valve is controlled to open, the lower air outlet valve is controlled to open, the opening of the outdoor return air valve is controlled to decrease by a set level based on the current value, and the opening of the current room's indoor return air valve is controlled to increase by a set level based on the current value.

10. The control method for a ducted air conditioner according to claim 7, characterized in that, in, The second type of parameter for the current room includes: the CO2 concentration of the current room; If it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room are controlled first according to the indoor humidity of the current room, including: If it is determined that the current CO2 concentration in the room is greater than the second preset CO2 concentration, then: If it is determined that the indoor humidity of the current room is less than the first preset humidity, then the opening degree of the outdoor return air valve is controlled to the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to 0. If it is determined that the indoor humidity of the current room is greater than or equal to the first preset humidity and less than or equal to the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a third proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a second proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the second proportion is less than the third proportion. If it is determined that the indoor humidity of the current room is greater than the second preset humidity, then the opening degree of the outdoor return air valve is controlled to be a first proportion of the preset maximum opening degree of the outdoor return air valve, and the opening degree of the indoor return air valve of the current room is controlled to be a first proportion of the preset maximum opening degree of the indoor return air valve of the current room, wherein the first proportion is greater than the second proportion and less than the third proportion. And / or, When it is determined that the second type of parameter of the current room is greater than the upper limit of the preset threshold range of the second type of parameter of the current room, after first controlling the opening degree of the outdoor return air valve and the opening degree of the indoor return air valve of the current room according to the indoor humidity of the current room, the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the indoor temperature of the current room, including: Determine whether the current operating mode of the ducted air conditioner is cooling mode or heating mode; If the current operating mode of the duct air conditioner is determined to be the cooling mode, then the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled according to the current indoor temperature of the room. If the current operating mode of the duct air conditioner is determined to be the heating mode, then the speed of the fan (32), the opening and closing of the upper air outlet valve and the opening and closing of the lower air outlet valve are controlled in a fourth way according to the current indoor temperature of the room.

11. The control method for a ducted air conditioner according to claim 10, characterized in that, in, Based on the current room temperature, a third control is performed on the rotation speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the upper air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the third preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, and the upper air outlet valve is controlled to open. And / or, Based on the current room temperature, a fourth control is performed on the rotation speed of the fan (32), the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve, including: If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the first preset temperature and less than the second preset temperature, then the speed of the fan (32) is controlled to the preset lowest wind speed, and the lower air outlet valve is controlled to open. If it is determined that the absolute value of the temperature difference between the current room's indoor temperature and the current room's target temperature is greater than or equal to the second preset temperature and less than the third preset temperature, then the speed of the fan (32) is controlled to the preset normal wind speed, and the lower air outlet valve is controlled to open. If the absolute value of the temperature difference between the current room temperature and the current room target temperature is determined to be greater than or equal to the third preset temperature, then the speed of the fan (32) is controlled to the preset enhanced wind speed, and the lower air outlet valve is controlled to open.

12. A control device for a ducted air conditioner, characterized in that, include: The acquisition unit is configured to, after the ducted air conditioner is turned on, acquire the air quality parameters of the current room, acquire the temperature and humidity parameters of the current room, and acquire the user category of the current room for the current room. The control unit is configured to control at least one of the following based on the air quality parameters of the current room, the temperature and humidity parameters of the current room, and the user category of the current room: the opening degree of the outdoor return air valve, the opening degree of the indoor return air valve of the current room, the rotational speed of the fan (32), the position of the air guide plate, the opening and closing of the upper air outlet valve, and the opening and closing of the lower air outlet valve.

13. A ducted air conditioner, characterized in that, include: The control device for the duct machine as described in claim 12.

14. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, the device containing the storage medium is controlled to perform the control method of the duct machine as described in any one of claims 1 to 11.

15. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method for the duct machine as described in any one of claims 1 to 11.

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