CN116839185B - Air conditioner temperature regulation and control method and system - Google Patents
Air conditioner temperature regulation and control method and system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 12
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- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000009423 ventilation Methods 0.000 claims description 22
- 238000005057 refrigeration Methods 0.000 claims description 16
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- 238000013528 artificial neural network Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/66—Volatile organic compounds [VOC]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention relates to a method and a system for regulating and controlling the temperature of an air conditioner, comprising the following steps: collecting environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature; calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration; based on air conditioner target temperature and indoor CO 2 The concentration and the outdoor temperature, and the control mode of the air conditioner is selected; calculating an error signal of the air conditioner running in the selected control mode, and adjusting the running state of the air conditioner according to the error signal; based on the indoor people flow, the air conditioner wind speed of the current air conditioner running state is adjusted. The invention can accurately calculate the target temperature of the air conditioner, intelligently select a proper control mode, adjust the running state and the wind speed of the air conditioner in real time, ensure the comfort level of indoor temperature and humidity, air quality, air fluidity and the like, and improve the satisfaction and health feeling of users.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a system for regulating and controlling the temperature of an air conditioner.
Background
Currently, air conditioners play an important role in regulating indoor temperature, humidity, air quality and the like; however, the conventional air conditioner control technology often depends on manual setting and manual operation, and the accuracy and effect are difficult to ensure.
For this reason, the industry has also proposed the concept of a comfort air conditioner, i.e. an air conditioner that determines and controls the main state parameters of the indoor air according to the requirements of human comfort. There are many factors affecting the comfort of the human body, and in general, energy consumption and other factors need to be considered, and the method is not suitable for a room with a relatively large flow of people.
Accordingly, the present invention has been made.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides an air conditioner temperature regulation and control method and system, which can effectively solve the problems in the background art.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the embodiment of the invention discloses an air conditioner temperature regulation and control method, which comprises the following steps:
collecting environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature;
five influencing factors based on comfort air conditioner: the method comprises the steps of 1, performing mode selection, temperature and humidity combined control, air flow speed adjustment and pollutant concentration control by a sub-module, wherein the four relatively independent and internally connected core control logics and formula operation are adopted to ensure that target values of the five influencing factors are simultaneously in parameter intervals required by a comfort air conditioner;
calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration;
based on air conditioner target temperature and indoor CO 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
calculating an error signal of the air conditioner running in the selected control mode, and adjusting the running state of the air conditioner according to the error signal;
based on the indoor people flow, the air conditioner wind speed of the current air conditioner running state is adjusted.
In any of the foregoing solutions, preferably, the collecting environmental data in real time and filtering the environmental data includes:
by the formula:filtering the ambient data, in this case, < >>For the update data value at time k, < >>For the updated data value predicted from the measured data value at the previous instant, x k For the measured data value at the current moment, K k Is the kalman gain.
In any of the above aspects, preferably, the calculating the air conditioner target temperature according to the indoor temperature, the indoor humidity and the indoor VOC concentration includes:
by the formula: t (T) humid ＝T air -0.33×(1-RH)×(T air -22) calculating the influence T of the indoor humidity on the indoor temperature humid In the formula, RH is relative humidity, T air Is the indoor temperature;
by the formula: t (T) voc ＝c 0 +c 1 log(C voc ) Calculating the influence T of the indoor VOC concentration on the temperature voc In the present formula, C voc Is VOC in indoor air s Concentration of c 0 And c 1 A constant that is a preset value;
by the formula: t (T) set ＝T out ×w 1 +T ref ×w 2 +T humid ×w 3 +T voc ×w 4 Calculating the target temperature T of the air conditioner set In the present formula, T out Is the outdoor temperature, T ref Is a reference temperature, is a preset value, T humid T is the influence of humidity on temperature voc To influence the indoor VOC concentration on the temperature, w 1 ，w 2 ，w 3 And w 4 Respectively, different weights.
In any of the above aspects, preferably, the selecting the control mode of the air conditioner based on the target temperature of the air conditioner includes the following steps:
based on the target temperature of the air conditioner, utility functions in a refrigeration mode, a heating mode and a ventilation mode are respectively defined;
based on utility functions of different control modes, the formula is as follows:selecting a control mode of the air conditioner, in this formula, M opt For the optimal control mode, M is the control mode, the value range is the refrigeration mode, the heating mode and the ventilation mode, u (M) is the utility function of the M control mode, T set For the target temperature of the air conditioner, T out Is the outdoor temperature, T th Is a temperature difference threshold between an indoor temperature and an outdoor temperature.
In any of the foregoing aspects, preferably, the defining utility functions in the cooling mode, the heating mode, and the ventilation mode based on the target temperature of the air conditioner includes:
the utility function defining the cooling mode is:in this formula, u cool As utility function of refrigeration mode, T in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the heating mode is:in this formula, u heat T is the utility function of the heating mode in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the ventilation mode is:in this formula, u fan As a utility function of ventilation mode, c is a constant, f VOC And->Indoor VOC concentration and CO respectively 2 Concentration ratio of (c).
In any of the above schemes, preferably, the calculating the error signal of the air conditioner operating in the selected control mode and adjusting the operating state of the air conditioner according to the error signal includes the following steps:
monitoring the indoor real-time environment temperature, and comparing the indoor real-time environment temperature with the target temperature of the air conditioner to obtain an error of running of the air conditioner in a selected control mode;
according to the obtained error, outputting a control quantity through a controller to adjust internal elements of the air conditioner, so that the indoor real-time environment temperature is the same as the target temperature of the air conditioner; wherein, the control formula of controller is:in the formula, u (t) is the control quantity of the controller, K p 、K i And K d E (t) is the error at the current time, and e (τ) is the value of the error in the past time τ.
In any of the above schemes, preferably, the adjusting the air conditioner wind speed in the front air conditioner running state based on the indoor people flow comprises the following steps:
calculating the air conditioner wind speed V of the current air conditioner running state;
by the formula:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The blower is regulated, in the present embodiment, V is the air speed, w of the air conditioner in the current air conditioner running state p Is a weight coefficient related to indoor people flow，N in N is the current indoor people flow max Is the maximum number of people accommodated in the room.
In any of the above schemes, preferably, the calculating the air conditioner wind speed of the current air conditioner operation state includes:
using a neural network and passing through the formula: v=f (W 3 ·f(W 2 ·f(W 1 ·[T,T t ])+b 1 )+b 2 ) Calculating the air conditioner wind speed V of the current air conditioner running state, wherein [ T, T ] in the formula t ]To the current temperature T and the target temperature T of the air conditioner t Merging into a feature vector to be input into the network, W 1 、W 2 、W 3 And b 1 、b 2 The weights and deviations of the connections between the layers of the neural network, f is the neuron activation function.
In any of the above schemes, preferably, the formula is as follows:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The adjusting of the blower comprises the following steps:
by the formula:calculating w p The method comprises the steps of carrying out a first treatment on the surface of the In this case, N in (k) N is the indoor people flow at the current moment in (k-1) is the indoor traffic at the previous time.
In a second aspect, an air conditioning temperature regulation system, the system comprising:
the acquisition module is used for acquiring environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature;
the calculating module is used for calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration;
a selection module for selecting indoor CO based on the target temperature of the air conditioner 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
the adjusting module is used for calculating an error signal of the air conditioner running in the selected control mode and adjusting the running state of the air conditioner according to the error signal;
and the control module is used for adjusting the air conditioner wind speed of the current air conditioner running state based on the indoor people flow.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an air conditioner temperature regulation and control method and system, which can accurately calculate the target temperature of an air conditioner, intelligently select a proper control mode, adjust the running state and the air speed of the air conditioner in real time, ensure the comfort level of indoor temperature and humidity, air quality, air fluidity and the like, improve the satisfaction and health feeling of users, automatically adjust the running state and the air speed and other parameters of the air conditioner, achieve the optimal energy utilization efficiency, reduce the energy consumption and the running cost of the air conditioner, and reduce the environmental pollution and the carbon emission.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
FIG. 1 is a schematic flow chart of a temperature control method of an air conditioner according to the present invention;
fig. 2 is a schematic block diagram of the air conditioner temperature control system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In order to better understand the above technical scheme, the following detailed description of the technical scheme of the present invention will be given with reference to the accompanying drawings of the specification and the specific embodiments.
As shown in fig. 1, the invention provides a temperature regulation method of an air conditioner, comprising the following steps:
step 1, acquiring environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature;
five influencing factors based on comfort air conditioner: the method comprises the steps of 1, performing mode selection, temperature and humidity combined control, air flow speed adjustment and pollutant concentration control by a sub-module, wherein the four relatively independent and internally connected core control logics and formula operation are adopted to ensure that target values of the five influencing factors are simultaneously in parameter intervals required by a comfort air conditioner;
step 2, calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration;
step 3, based on the target temperature of the air conditioner and the indoor CO 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
step 4, calculating an error signal of the air conditioner running in the selected control mode, and adjusting the running state of the air conditioner according to the error signal;
and 5, adjusting the air conditioner wind speed of the current air conditioner running state based on the indoor people flow.
Specifically, the step 1 is to collect environmental data in real time and filter the environmental data, and includes:
by the formula:filtering the ambient data, in this case, < >>For the update data value at time k, < >>For the updated data value predicted from the measured data value at the previous instant, x k For the measured data value at the current moment, K k Is the kalman gain.
In the air conditioner temperature regulation method according to the embodiment of the invention,the formula is an algorithm for updating actual measurement data by using state estimation and the actual measurement data, and can filter collected environmental data, namely the measurement data, remove noise and abnormal values in the environmental data and improve the accuracy and stability of the data.
Specifically, the step 2 of calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration includes:
step 21, by the formula: t (T) humid ＝T air -0.33×(1-RH)×(T air -22) calculating the influence T of the indoor humidity on the indoor temperature humid In the formula, RH is relative humidity, T air Is the indoor temperature;
step 22, by the formula: t (T) voc ＝c 0 +c 1 log(C voc ) Calculating the influence T of the indoor VOC concentration on the temperature voc In the present formula, C voc Is VOC in indoor air s Concentration of c 0 And c 1 A constant that is a preset value;
step 23, by the formula: t (T) set ＝T out ×w 1 +T ref ×w 2 +T humid ×w 3 +T voc ×w 4 Calculating the target temperature T of the air conditioner set In the present formula, T out Is the outdoor temperature, T ref Is a reference temperature, is a preset value, T humid T is the influence of humidity on temperature voc To influence the indoor VOC concentration on the temperature, w 1 ，w 2 ，w 3 And w 4 Respectively, different weights.
Specifically, the step 3 of selecting the control mode of the air conditioner based on the target temperature of the air conditioner includes the following steps:
step 31, defining utility functions in a refrigeration mode, a heating mode and a ventilation mode respectively based on the target temperature of the air conditioner;
step 32, based on utility functions of different control modes, the formula is as follows:selecting a control mode of the air conditioner, in this formula, M opt For the optimal control mode, M is the control mode, the value range is the refrigeration mode, the heating mode and the ventilation mode, u (M) is the utility function of the M control mode, T set For the target temperature of the air conditioner, T out Is the outdoor temperature, T th Is a temperature difference threshold between an indoor temperature and an outdoor temperature.
In the air conditioner temperature control method according to the embodiment of the present invention, in step 32, when the difference between the indoor temperature and the outdoor temperature is greater than T th When the indoor temperature is higher (or lower), the indoor temperature needs to be adjusted by adopting a proper air conditioning mode, and when the difference between the indoor temperature and the outdoor temperature is less than or equal to T th When the temperature difference between the indoor temperature and the outdoor temperature is not great, the T can be preset according to the temperature difference between the indoor temperature and the outdoor temperature th And according to T th As a judgment condition of the optimal control mode of the air conditioner.
Further, the step 31 defines utility functions in the cooling mode, the heating mode and the ventilation mode based on the target temperature of the air conditioner, respectively, including:
the utility function defining the cooling mode is:in this formula, u cool As utility function of refrigeration mode, T in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the heating mode is:in this formula, u heat T is the utility function of the heating mode in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the ventilation mode is: u (u) fan ＝c×(1-f VOC )×(1-f CO2 ) In the present formula, u fan As a utility function of ventilation mode, c is a constant, f VOC Andrespectively isIndoor VOC concentration and CO 2 Concentration ratio of (c).
In the air conditioner temperature regulation method according to the embodiment of the invention, for the cooling mode, the main task is to be able to reduce the indoor temperature below the target temperature as quickly as possible and to keep around this temperature; for heating modes, the main task is to be able to raise the indoor temperature above the target temperature as quickly as possible and to keep it around that temperature; for the ventilation mode, the main task is to be able to effectively reduce the pollutant concentration of the indoor air and to keep the indoor air circulating.
Specifically, the step 4 of calculating an error signal of the air conditioner running in the selected control mode and adjusting the running state of the air conditioner according to the error signal includes the following steps:
step 41, monitoring the indoor real-time environment temperature, and comparing the indoor real-time environment temperature with the target temperature of the air conditioner to obtain the running error of the air conditioner in the selected control mode;
step 42, outputting a control quantity through a controller according to the obtained error so as to adjust the internal elements of the air conditioner, so that the indoor real-time environment temperature is the same as the target temperature of the air conditioner;
wherein, the control formula of controller is:in the formula, u (t) is the control quantity of the controller, K p 、K i And K d E (t) is the error at the current time, and e (τ) is the value of the error in the past time τ.
In the air conditioner temperature regulation method according to the embodiment of the invention, the u (t) output by the controller is used for regulating the internal elements of the air conditioner, such as regulating the refrigerating capacity of the condenser, and the like, so that the air conditioner temperature regulation method is an actual control quantity.
Specifically, step 5, based on the indoor people flow, adjusts the air conditioner wind speed of the front air conditioner running state, and includes the following steps:
step 51, calculating the air conditioner wind speed V of the current air conditioner running state;
step 52, by the formula:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The blower is regulated, in the present embodiment, V is the air speed, w of the air conditioner in the current air conditioner running state p N is a weight coefficient related to indoor people flow in N is the current indoor people flow max Is the maximum number of people accommodated in the room.
Further, in the step 51, calculating the air conditioner wind speed of the current air conditioner operation state includes:
using a neural network and passing through the formula: v=f (W 3 ·f(W 2 ·f(W 1 ·[T,T t ])+b 1 )+b 2 ) Calculating the air conditioner wind speed V of the current air conditioner running state, wherein [ T, T ] in the formula t ]To the current temperature T and the target temperature T of the air conditioner t Merging into a feature vector to be input into the network, W 1 、W 2 、W 3 And b 1 、b 2 The weights and the deviations of the connections between the layers of the neural network, respectively, f is a neuron activation function, for example, a common sigmoid function, a ReLU function, etc. can be selected.
Further, the step 52 is performed by the formula:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The adjusting of the blower comprises the following steps:
by the formula:calculating w p The method comprises the steps of carrying out a first treatment on the surface of the In this case, N in (k) N is the indoor people flow at the current moment in (k-1) is the indoor traffic at the previous time.
As shown in fig. 2, an air conditioner temperature regulation system, the system comprising:
the acquisition module is used for acquiring environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature;
the calculating module is used for calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration;
a selection module for selecting indoor CO based on the target temperature of the air conditioner 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
the adjusting module is used for calculating an error signal of the air conditioner running in the selected control mode and adjusting the running state of the air conditioner according to the error signal;
and the control module is used for adjusting the air conditioner wind speed of the current air conditioner running state based on the indoor people flow.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an air conditioner temperature regulation and control method and system, which can accurately calculate the target temperature of an air conditioner, intelligently select a proper control mode, adjust the running state and the air speed of the air conditioner in real time, ensure the comfort level of indoor temperature and humidity, air quality, air fluidity and the like, improve the satisfaction and health feeling of users, automatically adjust the running state and the air speed and other parameters of the air conditioner, achieve the optimal energy utilization efficiency, reduce the energy consumption and the running cost of the air conditioner, and reduce the environmental pollution and the carbon emission.
The above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A temperature regulation and control method of an air conditioner is characterized in that: the method comprises the following steps:
collecting environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature;
five influencing factors based on comfort air conditioner: the method comprises the steps of 1, performing mode selection, temperature and humidity combined control, air flow speed adjustment and pollutant concentration control by a sub-module, wherein the four relatively independent and internally connected core control logics and formula operation are adopted to ensure that target values of the five influencing factors are simultaneously in parameter intervals required by a comfort air conditioner;
calculating an air conditioner target temperature according to the indoor temperature, the indoor humidity and the indoor VOC concentration, comprising:
by the formula: t (T) humid ＝T air -0.33×(1-RH)×(T air -22) calculating the influence T of the indoor humidity on the indoor temperature humid In the formula, RH is relative humidity, T air Is the indoor temperature;
by the formula: t (T) voc ＝c 0 +c 1 log(C voc ) Calculating the influence T of the indoor VOC concentration on the temperature voc In the present formula, C voc C is the concentration of VOC in the indoor air 0 And c 1 A constant that is a preset value;
by the formula: t (T) set ＝T out ×w 1 +T ref ×w 2 +T humid ×w 3 +T voc ×w 4 Calculating the target temperature T of the air conditioner set In the present formula, T out Is the outdoor temperature, T ref Is a reference temperature, is a preset value, T humid T is the influence of humidity on temperature voc To influence the indoor VOC concentration on the temperature, w 1 ，w 2 ，w 3 And w 4 Respectively is notThe same weight;
based on air conditioner target temperature and indoor CO 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
calculating an error signal of the air conditioner running in the selected control mode, and adjusting the running state of the air conditioner according to the error signal;
based on the indoor people flow, the air conditioner wind speed of the current air conditioner running state is adjusted.
2. The air conditioner temperature regulation method according to claim 1, wherein: the real-time collection of environmental data and filtering of the environmental data includes:
by the formula:filtering the ambient data, in this case, < >>For the update data value at time k, < >>For the updated data value predicted from the measured data value at the previous instant, x k For the measured data value at the current moment, K k Is the kalman gain.
3. The air conditioner temperature regulation method according to claim 2, wherein: the method for selecting the control mode of the air conditioner based on the target temperature of the air conditioner comprises the following steps:
based on the target temperature of the air conditioner, utility functions in a refrigeration mode, a heating mode and a ventilation mode are respectively defined;
based on utility functions of different control modes, the formula is as follows:selecting a control mode of the air conditioner, in this formula, M opt For the optimal control mode, M is the control mode, the value range is the refrigeration mode, the heating mode and the ventilation mode, u (M) is the utility function of the M control mode, T set For the target temperature of the air conditioner, T out Is the outdoor temperature, T th Is a temperature difference threshold between an indoor temperature and an outdoor temperature.
4. The air conditioner temperature regulation method of claim 3 wherein: the utility functions in the refrigeration mode, the heating mode and the ventilation mode are respectively defined based on the target temperature of the air conditioner, and the method comprises the following steps:
the utility function defining the cooling mode is:in this formula, u cool As utility function of refrigeration mode, T in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the heating mode is:in this formula, u heat T is the utility function of the heating mode in T is the current indoor temperature set For the target temperature of the air conditioner, T dif The time required for the indoor temperature to reach the target temperature of the air conditioner for the current control mode;
the utility function defining the ventilation mode is: u (u) fan ＝c×(1-f VOC )×(1-f CO2 ) In the present formula, u fan As a utility function of ventilation mode, c is a constant, f VOC Andindoor VOC concentration and CO respectively 2 Concentration ratio of (c).
5. The air conditioner temperature regulation method according to claim 4, wherein: the method comprises the following steps of:
monitoring the temperature of an air outlet of the air conditioner, and comparing the temperature of the air outlet of the air conditioner with the target temperature of the air conditioner to obtain an error of running of the air conditioner in a selected control mode;
according to the obtained error, outputting a control quantity through a controller to adjust internal elements of the air conditioner, so that the temperature of an air outlet of the air conditioner is the same as the target temperature of the air conditioner; wherein, the control formula of controller is:in the formula, u (t) is the control quantity of the controller, K p 、K i And K d The error is the value of the error in the past time t.
6. The air conditioner temperature regulation method according to claim 5, wherein: the air conditioner wind speed of the front air conditioner running state is adjusted based on the indoor people flow, and the method comprises the following steps:
calculating the air conditioner wind speed V of the current air conditioner running state;
by the formula:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The blower is regulated, in the present embodiment, V is the air speed, w of the air conditioner in the current air conditioner running state p N is a weight coefficient related to indoor people flow in N is the current indoor people flow max Is the maximum number of people accommodated in the room.
7. The air conditioner temperature regulation method of claim 6 wherein: the calculating the air conditioner wind speed of the current air conditioner running state comprises the following steps:
using a neural network and passing through the formula: v=f (W 3 ·f(W 2 ·f(W 1 ·[T,T t ])+b 1 )+b 2 ) Calculating the air conditioner wind speed V of the current air conditioner running state, wherein [ T, T ] in the formula t ]To the current temperature T and the target temperature T of the air conditioner t Merging into a feature vector to be input into the network, W 1 、W 2 、W 3 And b 1 、b 2 The weights and deviations of the connections between the layers of the neural network, f is the neuron activation function.
8. The air conditioner temperature regulation method of claim 7 wherein: the formula is as follows:calculating the adjusted blower rotation speed V out And according to the adjusted blower rotation speed V out The adjusting of the blower comprises the following steps:
by the formula:calculating w p The method comprises the steps of carrying out a first treatment on the surface of the In this case, N in (k) N is the indoor people flow at the current moment in (k-1) is the indoor traffic at the previous time.
9. An air conditioner temperature regulation and control system which is characterized in that: the system comprises:
the acquisition module is used for acquiring environment data in real time and filtering the environment data, wherein the environment data comprises indoor temperature, indoor humidity, indoor VOC concentration and indoor CO 2 Concentration, indoor people flow and outdoor temperature; five influencing factors based on comfort air conditioner: 1 mode of operation, 2 target temperature, 3 target humidity, 4 air flow rate, 5 pollutant concentration, split mode of operationSelecting, controlling temperature and humidity in a combined way, adjusting air flow speed and controlling concentration of pollutants, and performing operation by four relatively independent and internally connected core control logics and formulas so as to ensure that target values of the five influencing factors are simultaneously in parameter intervals required by a comfort air conditioner;
the calculation module is used for calculating the target temperature of the air conditioner according to the indoor temperature, the indoor humidity and the indoor VOC concentration, and comprises the following components:
by the formula: t (T) humid ＝T air -0.33×(1-RH)×(T air -22) calculating the influence T of the indoor humidity on the indoor temperature humid In the formula, RH is relative humidity, T air Is the indoor temperature;
by the formula: t (T) voc ＝c 0 +c 1 log(C voc ) Calculating the influence T of the indoor VOC concentration on the temperature voc In the present formula, C voc C is the concentration of VOC in the indoor air 0 And c 1 A constant that is a preset value;
by the formula: t (T) set ＝T out ×w 1 +T ref ×w 2 +T humid ×w 3 +T voc ×w 4 Calculating the target temperature T of the air conditioner set In the present formula, T out Is the outdoor temperature, T ref Is a reference temperature, is a preset value, T humid T is the influence of humidity on temperature voc To influence the indoor VOC concentration on the temperature, w 1 ，w 2 ，w 3 And w 4 Respectively different weights;
a selection module for selecting indoor CO based on the target temperature of the air conditioner 2 The concentration and the outdoor temperature are used for selecting a control mode of the air conditioner, wherein the control mode of the air conditioner comprises a refrigeration mode, a heating mode and a ventilation mode;
the adjusting module is used for calculating an error signal of the air conditioner running in the selected control mode and adjusting the running state of the air conditioner according to the error signal;
and the control module is used for adjusting the air conditioner wind speed of the current air conditioner running state based on the indoor people flow.
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