Environmental control air conditioner control method combining water curtain humidity regulation and refrigerant refrigeration

Abstract

The present invention discloses a control method for an environmental control air conditioner combining water curtain humidity adjustment and refrigerant refrigeration, including steps of obtaining the environmental temperature value and environmental humidity value within the current time period; calculating the corrected temperature value and corrected humidity value; constructing a grey prediction model to predict the corrected temperature value and corrected humidity value in the next time period; comparing the corrected temperature value with the preset temperature value and comparing the corrected humidity value and the preset humidity value, and controlling and adjusting the refrigerant refrigeration strategy, water curtain humidity adjustment control strategy, fan air volume and air conditioner dehumidification function according to the magnitudes of the corrected temperature value and the preset temperature value and the corrected humidity value and the preset humidity value, and returning to execute the operation of obtaining the environmental temperature value and environmental humidity value after the time period. The present invention realizes precise control of temperature and humidity while achieving rapid humidity adjustment and refrigeration of the air conditioner through two controls of the water curtain humidity adjustment control strategy and the refrigerant refrigeration strategy, and adopts predictive control technology to solve the lag delay effect of temperature / humidity control.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning refrigeration and humidity adjustment, and particularly to an environmental control air-conditioning control method combining water curtain humidity adjustment and refrigerant refrigeration. Background Art

[0002] The principle of the air-conditioning humidity adjustment function is to improve the dry environment by increasing the humidity of indoor air. Traditional environmental control air conditioners usually use a thermostat to adjust the environmental temperature and a humidifier to adjust the environmental humidity by methods such as spraying. The disadvantage of this method is that the humidity adjustment speed is slow, the separate adjustment of temperature and humidity is unreasonable. Especially for places such as farms that require efficient refrigeration and rapid humidity adjustment, multiple humidifiers need to be added, and there will be uneven humidity adjustment. For example, when the humidity is too high, it is relatively slow to reduce the humidity, the adjustment of temperature and humidity is unreasonable, the adjustment is lagged and delayed, and the adjustment of humidity requires additional equipment, resulting in high costs and large power consumption, causing waste of energy. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an environmental control air-conditioning control method combining water curtain humidity adjustment and refrigerant refrigeration. Through two controls of the water curtain humidity adjustment control strategy and the refrigerant refrigeration strategy, and using predictive control technology to solve the lag and delay effect of temperature / humidity control, the accurate control of temperature and humidity is achieved while the air conditioner rapidly adjusts humidity and refrigerates, and the cost is effectively reduced and the energy consumption is reduced.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] An environmental control air-conditioning control method combining water curtain humidity adjustment and refrigerant refrigeration, characterized by including the steps of,

[0006] Obtain the environmental temperature value and environmental humidity value within the current time period;

[0007] Calculate the corrected temperature value according to the environmental temperature value, and calculate the corrected humidity value according to the environmental humidity value;

[0008] Construct a grey prediction model and predict the corrected temperature value and corrected humidity value for the next time period according to the corrected temperature value and corrected humidity value;

[0009] Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, then activate the refrigerant refrigeration strategy before the end of the current time period, close the water curtain humidity adjustment control strategy, and call the composite fuzzy PID algorithm to adjust the fan air volume according to the corrected temperature value and the preset temperature value;

[0010] If the corrected temperature value is less than the preset temperature value, then compare the corrected humidity value with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, close the refrigerant cooling strategy before the end of the current time period, activate the water curtain humidity control strategy, and dynamically adjust the water curtain water volume according to the preset humidity value and the corrected humidity value. Call the composite fuzzy PID algorithm to adjust the fan air volume according to the corrected humidity value and the preset humidity value. If the corrected humidity value is greater than the preset humidity value, close the refrigerant cooling strategy and the water curtain humidity control strategy, and then determine whether to activate the air conditioner dehumidification function according to the difference between the corrected humidity value and the preset humidity value.

[0011] If the corrected temperature value or the corrected humidity value is an abnormal value, start the error prevention process and forcibly close the refrigerant cooling strategy, the water curtain humidity control strategy, the fan air volume, and the air conditioner dehumidification function.

[0012] After the time period, return to execute the operation of obtaining the ambient temperature value and the ambient humidity value.

[0013] Furthermore, collect the ambient temperature value T1 and the ambient temperature value T2 through two groups of temperature sensors, and collect the ambient humidity value H1 and the ambient humidity value H2 through two groups of humidity sensors.

[0014] Furthermore, calculate the corrected temperature value according to the ambient temperature value, and calculate the corrected humidity value according to the ambient humidity value. Specifically, perform the following operations.

[0015] If the ambient temperature value T1 < Terr, the ambient temperature value T2 < Terr, and |T1 - T2| ≤ 2°C, then the corrected temperature value TjA = (T1 + T2) / 2, where Terr is the abnormal temperature value.

[0016] If the ambient temperature value T1 < Terr and |T1 - T2| > 2°C, regardless of the value of the ambient temperature value T2, then the corrected temperature value TjA = T1.

[0017] If the ambient temperature value T1 ≥ Terr and the ambient temperature value T2 < Terr, then the corrected temperature value TjA = T2.

[0018] If the ambient temperature value T1 ≥ Terr and the ambient temperature value T2 ≥ Terr, then the corrected temperature value TjA = Terr.

[0019] If the ambient humidity value H1 < Herr, the ambient humidity value H2 < Herr, and |H1 - H2| ≤ 10%, then the corrected humidity value HjA = (H1 + H2) / 2, where Herr is the abnormal humidity value.

[0020] If the ambient humidity value H1 < Herr and |H1 - H2| > 10%, regardless of the value of H2, then the corrected humidity value HjA = H1.

[0021] If the environmental humidity value H1 ≥ Herr and the environmental humidity value H2 < Herr, then the corrected humidity value HjA = H2;

[0022] If the environmental humidity value H1 ≥ Herr and the environmental humidity value H2 ≥ Herr, then the corrected humidity value HjA = Herr.

[0023] Furthermore, the construction process of the grey prediction model is as follows:

[0024] Record the original data as:

[0025] ,

[0026] where the original data includes the current air volume, water volume, time period, corrected temperature value, and corrected humidity value, and X 0 represents the initial original data set, and X 0 (n) represents the nth element in the initial original data, and n is a positive integer;

[0027] Accumulate the initial original data set to obtain a new time series X 1 :

[0028] ,

[0029] ,

[0030] where X 0 (i) represents the ith element in the initial original data, and X 1 (n) represents the nth element in the new time series;

[0031] Establish a first-order differential equation based on the new time series:

[0032] ,

[0033] where θ and u are grey parameters;

[0034] Solve the first-order differential equation to obtain the corrected temperature value TA and the corrected humidity value HA.

[0035] Furthermore, according to the corrected temperature value and the preset temperature value, call the composite fuzzy PID algorithm to adjust the air volume of the fan, and specifically perform the following operations:

[0036] Take the difference between the corrected temperature value TA and the preset temperature value TB as the input, and take the absolute value of the difference. Compare the absolute value of the difference with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, use the PID controller for control processing and output the air volume of the fan. If the absolute value of the difference is greater than or equal to the preset temperature threshold, use the fuzzy controller for control processing and output the air volume of the fan.

[0037] Furthermore, dynamically adjust the water curtain water volume according to the preset humidity value and the corrected humidity value, and specifically perform the following operations:

[0038] Dynamically adjust the water curtain water volume according to the humidity difference ΔH1 = HB - HA between the preset humidity value and the corrected humidity value;

[0039] If the humidity difference ΔH1 ≤ the first humidity difference threshold, then adjust the water curtain water volume to 0 water volume;

[0040] If the humidity difference ΔH1 > the first humidity difference threshold and ΔH1 < the second humidity difference threshold, then adjust the water curtain water volume to the first water volume;

[0041] If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, then adjust the water curtain water volume to the second water volume;

[0042] If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, then adjust the water curtain water volume to the third water volume;

[0043] If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, then adjust the water curtain water volume to the fourth water volume;

[0044] If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, then adjust the water curtain water volume to the fifth water volume;

[0045] If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, then adjust the water curtain water volume to the sixth water volume;

[0046] Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, and 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume.

[0047] Furthermore, call the composite fuzzy PID algorithm to adjust the fan air volume according to the corrected humidity value and the preset humidity value, and specifically perform the following operations:

[0048] Take the difference between the corrected humidity value HA and the preset humidity value HB as the input, and perform an absolute value processing on the difference. Compare the absolute value of the difference with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, then use the PID controller for control processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, then use the fuzzy controller for control processing and output the fan air volume.

[0049] Furthermore, the expression of the PID controller is:

[0050] ,

[0051] ,

[0052] ,

[0053] Among them, K p , K i , K d are the integral coefficient, the proportional coefficient, and the differential coefficient respectively. e(t) is the input quantity, that is, the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB. G(t) is the output air volume of the fan, U(t) is the PID output quantity calculated in real time, E(t) is the maximum PID output quantity, and Kpmax is the maximum Kp value.

[0054] Furthermore, the operation process of the fuzzy controller is as follows: set the fuzzy rule table, look up the table according to the actual input, calculate and output the corresponding air volume of the fan. Among them, the setting method of the fuzzy rule table is as follows: take the initial environmental temperature value or environmental humidity value at startup as the initial value, take the preset temperature value or preset humidity value as the maximum value, calculate in 100 parts, the minimum change accuracy = (maximum value - initial value) / 100, the output quantity is designed according to the basic principle mode of increasing first and then decreasing, the serial number of the fuzzy rule table = the actual input quantity / minimum change accuracy, and the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB is the actual input quantity.

[0055] Furthermore, if the corrected humidity value is greater than the preset humidity value, the refrigerant cooling strategy and the water curtain humidity control strategy are closed, and then it is judged whether to turn on the air conditioner dehumidification function according to the difference between the corrected humidity value and the preset humidity value. The following operations are specifically performed:

[0056] If the corrected temperature value TA < the preset temperature value TB and the corrected humidity value HA > the preset humidity value HB, the refrigerant cooling strategy and the water curtain humidity control strategy are closed;

[0057] Then, it is judged whether to turn on the air conditioner dehumidification function according to the humidity difference ΔH2 = HA - HB between the corrected humidity value and the preset humidity value:

[0058] If the humidity difference ΔH2 > the preset humidity difference threshold, the air conditioner dehumidification function is turned on, and the fan is adjusted to 10% air volume to reduce the environmental humidity. If the humidity difference ΔH2 ≤ the preset humidity difference threshold, the air conditioner dehumidification function is turned off, and the fan is adjusted to 10% air volume to maintain the environmental humidity.

[0059] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0060] 1. The present invention mainly adopts two control strategies, namely the water curtain humidity control strategy and the refrigerant refrigeration strategy, supplemented by air-conditioning dehumidification and fan air volume adjustment, so as to achieve dynamic and stable adjustment of the temperature and humidity of the air conditioner. Moreover, the adjustment speed is fast, the humidity adjustment is uniform, and the noise is small, greatly improving the stability and reliability of the air conditioner, meeting the needs of places such as farms that require efficient refrigeration and rapid humidity adjustment, without the need to additionally increase equipment, with low cost, achieving energy conservation and consumption reduction, strong practicability, wide application scope, and being easy to promote.

[0061] 2. The present invention uses predictive control technology to solve the lag and delay effect of temperature / humidity control, and calls the improved composite fuzzy PID algorithm for state variable control to achieve precise control of the temperature and humidity of the air conditioner.

[0062] 3. The present invention uses intelligent feedforward technology to offset the drastic fluctuations of temperature / humidity, and uses the parameters of the grey prediction model to predict temperature / humidity, being able to adapt to environmental changes in real time and continuously optimize the control effect, always maintaining a high-performance and stable operating state. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is the method flow chart of the present invention.

[0064] Figure 2 It is the flow chart of the water curtain humidity control strategy of the present invention.

[0065] Figure 3 It is the flow chart of the refrigerant refrigeration strategy of the present invention.

[0066] Figure 4 It is the prediction flow chart of the grey prediction model in the present invention.

[0067] Figure 5 It is the implementation block diagram of the composite fuzzy PID algorithm in the present invention.

[0068] Figure 6 It is the schematic diagram of the fuzzy rule table in the present invention.

[0069] Figure 7 It is the schematic diagram of the principle of the environmental control air conditioner of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0070] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0071] Embodiment 1:

[0072] As Figures 1 to 6 shown, this embodiment provides an environmental control air conditioner control method combining water curtain humidity adjustment and refrigerant refrigeration, including the steps of,

[0073] S1. Obtain the environmental temperature value and environmental humidity value; specifically, two groups of temperature sensors are set, one group is the main temperature sensor and the other group is the auxiliary temperature sensor. The environmental temperature value T1 is collected through the main temperature sensor, and the environmental temperature value T2 is collected through the auxiliary temperature sensor. At the same time, two groups of humidity sensors are set, one group is the main humidity sensor and the other group is the auxiliary humidity sensor. The environmental humidity value H1 is collected through the main humidity sensor, and the environmental humidity value H2 is collected through the auxiliary humidity sensor.

[0074] S2. Calculate the corrected temperature value according to the environmental temperature value and calculate the corrected humidity value according to the environmental humidity value; specifically perform the following operations:

[0075] If the environmental temperature value T1 < Terr, the environmental temperature value T2 < Terr, and |T1 - T2| ≤ 2°C, then the corrected temperature value TjA = (T1 + T2) / 2, where Terr is the abnormal temperature value;

[0076] If the environmental temperature value T1 < Terr and |T1 - T2| > 2°C, regardless of the value of the environmental temperature value T2, then the corrected temperature value TjA = T1;

[0077] If the environmental temperature value T1 ≥ Terr and the environmental temperature value T2 < Terr, then the corrected temperature value TjA = T2;

[0078] If the environmental temperature value T1 ≥ Terr and the environmental temperature value T2 ≥ Terr, then the corrected temperature value TjA = Terr.

[0079] If the environmental humidity value H1 < Herr, the environmental humidity value H2 < Herr, and |H1 - H2| ≤ 10%, then the corrected humidity value HjA = (H1 + H2) / 2, where Herr is the abnormal humidity value;

[0080] If the environmental humidity value H1 < Herr and |H1 - H2| > 10%, regardless of the value of H2, then the corrected humidity value HjA = H1;

[0081] If the environmental humidity value H1 ≥ Herr and the environmental humidity value H2 < Herr, then the corrected humidity value HjA = H2;

[0082] If the environmental humidity value H1 ≥ Herr and the environmental humidity value H2 ≥ Herr, then the corrected humidity value HjA = Herr.

[0083] S3. Build a grey prediction model and predict the corrected temperature value and corrected humidity value for the next time period based on the corrected temperature value and corrected humidity value;

[0084] To predict the next corrected temperature / humidity value in advance, the grey prediction model GM(1,1) is introduced. The grey prediction model treats all variables as grey quantities. Based on this theoretical principle, it reveals the relatively complex and discrete internal laws in the data, making the time-series data more regular and thus reducing randomness. The construction process of the grey prediction model GM(1,1) is as follows:

[0085] Record the original data as:

[0086] ,

[0087] where the original data includes the current air volume, water volume, time period, corrected temperature value and corrected humidity value, and X 0 represents the initial original data set, and X 0 (n) represents the nth element in the initial original data, and n is a positive integer;

[0088] Accumulate the initial original data set to obtain a new time series X 1 :

[0089] ,

[0090] ,

[0091] where X 0 (i) represents the ith element in the initial original data, and X 1 (n) represents the nth element in the new time series;

[0092] Establish a first-order differential equation based on the new time series:

[0093] ,

[0094] where θ and u are grey parameters;

[0095] Solve the first-order differential equation to obtain the corrected temperature value TA and corrected humidity value HA.

[0096] S4. Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, activate the refrigerant cooling strategy before the end of the current time period, deactivate the water curtain humidity control strategy, and adjust the fan air volume by invoking the composite fuzzy PID algorithm according to the corrected temperature value and the preset temperature value; specifically perform the following operations:

[0097] If the corrected temperature value TA ≥ the preset temperature value TB, then the refrigerant cooling strategy is activated before the end of the current time period, the refrigerant cooling function is activated, and the water curtain humidity control strategy is deactivated.

[0098] To better adjust the temperature / humidity, a composite fuzzy PID algorithm is introduced to control the regulation of the air volume. Invoking the composite fuzzy PID algorithm control can further reduce the overshoot in the air volume regulation process and eliminate the measurement delay of the outlet temperature / humidity, and make corrections to the predicted temperature / humidity values in real time.

[0099] The process of adjusting the fan air volume by invoking the composite fuzzy PID algorithm based on the corrected temperature value and the preset temperature value is as follows:

[0100] Take the difference between the corrected temperature value TA and the preset temperature value TB as the input, and take the absolute value of the difference. Compare the absolute value of the difference with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, use the PID controller for control processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset temperature threshold, use the fuzzy controller for control processing and output the fan air volume.

[0101] Among them, the expression of the PID controller is:

[0102] ,

[0103] ,

[0104] ,

[0105] Among them, K p 、K i 、K d are the integral coefficient, proportional coefficient, and differential coefficient respectively, e(t) is the input quantity, that is, the difference between the corrected temperature value TA and the preset temperature value TB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output quantity, E(t) is the maximum PID output quantity, and Kpmax is the maximum Kp value.

[0106] The operation process of the fuzzy controller is as follows: Set the fuzzy rule table, look up the table according to the actual input, calculate and output the corresponding fan air volume. Among them, the setting method of the fuzzy rule table is as follows: Take the initial ambient temperature value at startup as the initial value, take the preset temperature value as the maximum value, calculate in 100 parts, the minimum change accuracy = (maximum value - initial value) / 100, the output quantity is designed according to the basic principle mode of increasing first and then decreasing (can be adjusted based on the test effect data in actual applications), the serial number of the fuzzy rule table = actual input quantity / minimum change accuracy, and the difference between the corrected temperature value TA and the preset temperature value TB is the actual input quantity.

[0107] S5. If the corrected temperature value is less than the preset temperature value, then compare the corrected humidity value with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, before the end of the current time period, close the refrigerant cooling strategy, activate the water curtain humidity control strategy, dynamically adjust the water curtain water volume according to the preset humidity value and the corrected humidity value, and call the composite fuzzy PID algorithm to adjust the fan air volume according to the difference between the corrected humidity value and the preset humidity value. If the corrected humidity value is greater than the preset humidity value, close the refrigerant cooling strategy and the water curtain humidity control strategy, and then determine whether to activate the air conditioner dehumidification function according to the difference between the corrected humidity value and the preset humidity value. Specifically, perform the following operations.

[0108] If the corrected temperature value TA < the preset temperature value TB and the corrected humidity value HA ≤ the preset humidity value HB, before the end of the current time period, close the refrigerant cooling strategy, activate the water curtain humidity control strategy, and turn off the refrigerant cooling function.

[0109] The process of dynamically adjusting the water curtain water volume according to the humidity difference ΔH1 = HB - HA between the preset humidity value and the corrected humidity value is as follows:

[0110] If the humidity difference ΔH1 ≤ the first humidity difference threshold, adjust the water curtain water volume to 0 water volume, that is, water volume 0 gear.

[0111] If the humidity difference ΔH1 > the first humidity difference threshold and ΔH1 < the second humidity difference threshold, adjust the water curtain water volume to the first water volume, that is, water volume 1 gear.

[0112] If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, adjust the water curtain water volume to the second water volume, that is, water volume 2 gear.

[0113] If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, adjust the water curtain water volume to the third water volume, that is, water volume 3 gear.

[0114] If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, adjust the water curtain water volume to the fourth water volume, that is, water volume 4 gear.

[0115] If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, adjust the water curtain water volume to the fifth water volume, that is, water volume 5 gear.

[0116] If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, adjust the water curtain water volume to the sixth water volume, that is, water volume 6 gear.

[0117] Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume. In this embodiment, the first humidity difference threshold = 0%, the second humidity difference threshold = 5%, the third humidity difference threshold = 10%, the fourth humidity difference threshold = 15%, the fifth humidity difference threshold = 20%, the sixth humidity difference threshold = 25%, 0 water volume = 0%, the first water volume = 20%, the second water volume = 40%, the third water volume = 60%, the fourth water volume = 80%, the fifth water volume = 90%, the sixth water volume = 100%.

[0118] The process of adjusting the fan air volume by calling the composite fuzzy PID algorithm according to the corrected humidity value and the preset humidity value is as follows:

[0119] Take the difference between the corrected humidity value HA and the preset humidity value HB as the input, and perform an absolute value processing on the difference. Compare the absolute value of the difference with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, use the PID controller for control processing and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, use the fuzzy controller for control processing and output the fan air volume.

[0120] Among them, the expression of the PID controller is:

[0121] ,

[0122] ,

[0123] ,

[0124] Among them, K p 、K i 、K d are the integral coefficient, proportional coefficient and differential coefficient respectively, e(t) is the input quantity, that is, the difference between the corrected humidity value HA and the preset humidity value HB, G(t) is the output fan air volume, U(t) is the real-time calculated PID output quantity, E(t) is the maximum PID output quantity, and Kpmax is the maximum Kp value.

[0125] The operation process of the fuzzy controller is: set the fuzzy rule table, look up the table according to the actual input, calculate and output the corresponding fan air volume, among which, the setting method of the fuzzy rule table is as follows: the initial ambient humidity value at the time of startup is the initial value, the preset humidity value is the maximum value, and it is calculated as 100 parts. The minimum change accuracy = (maximum value - initial value) / 100, and the output is designed according to the basic principle of increasing first and then decreasing (it can be adjusted based on the test effect data in actual application). The serial number of the fuzzy rule table = actual input / minimum change accuracy, and the difference between the corrected humidity value HA and the preset humidity value HB is the actual input.

[0126] If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is greater than the preset humidity value HB, the condenser cooling strategy and the water curtain humidity control strategy are turned off;

[0127] Then, based on the humidity difference ΔH2=HA-HB between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function:

[0128] If the humidity difference ΔH2 is greater than the preset humidity difference threshold, the air conditioning dehumidification function is turned on and the fan is adjusted to 10% air volume to reduce the ambient humidity. If the humidity difference ΔH2 is less than or equal to the preset humidity difference threshold, the air conditioning dehumidification function is turned off and the fan is adjusted to 10% air volume to maintain the ambient humidity. In this embodiment, the preset humidity difference threshold = 5%.

[0129] S6. If the corrected temperature value or the corrected humidity value is an abnormal value, the error prevention process is started and the condenser cooling strategy, the water curtain humidity control strategy, the fan air volume and the air conditioning dehumidification function are forcibly turned off;

[0130] S7. After a time period, the process returns to executing the operation of obtaining the ambient temperature value and the ambient humidity value. In this embodiment, the default time period Tu=5S.

[0131] Compared to pure fuzzy controller algorithms, this invention significantly shortens response time and accelerates system reaction speed. Compared to traditional PID algorithms, it improves the large overshoot problem that has always existed in traditional algorithms. The composite fuzzy PID algorithm is more flexible and more suitable for temperature and humidity control systems.

[0132] Example 2:

[0133] like Figure 7 As shown, this embodiment provides an environmentally controlled air conditioner, including:

[0134] Temperature sensor, used to obtain ambient temperature value;

[0135] Humidity sensor, used to obtain ambient humidity value;

[0136] The main control system includes a processor and a memory storing program instructions. The processor is configured to execute the environmental control air conditioner control method combining water curtain humidity adjustment and refrigerant refrigeration described in Embodiment 1 when executing the program instructions. It receives and processes the ambient temperature value and ambient humidity value, and generates and outputs control instructions for the dehumidification module, condenser, water curtain humidity adjustment valve, and fan based on the environmental control air conditioner control method combining water curtain humidity adjustment and refrigerant refrigeration. The specific control strategy of the main control system is as follows: the output of the refrigerant refrigeration strategy is set as U1, the air volume is Uf1, the water volume is Uw1, and the preset time period is Tu; the water curtain humidity adjustment control strategy is set as U2, the air volume is Uf2, the water volume is Uw2, and the preset time period is Tu; the total control output U of the main control system is U = W1 * U1 + W2 * U2, where W1 and W2 are weighting coefficients, and the on and off effects can be achieved by setting W1 and W2 to 0% and 100% respectively. Among them, the output of the refrigerant refrigeration strategy U1 = Uf1 * Tu + Uw1 * Tu, and the water curtain humidity adjustment control strategy U2 = Uf2 * Tu + Uw2 * Tu. For control purposes, it can also be used to evaluate the operation effect of the system.

[0137] The dehumidification module is used to dehumidify according to the instructions of the main control system to adjust the humidity.

[0138] The condenser is used to refrigerate according to the instructions of the main control system to adjust the temperature.

[0139] The water curtain humidity adjustment valve is used to adjust the water volume of the water curtain according to the instructions of the main control system to adjust the humidity.

[0140] The fan is used to dynamically adjust the air volume according to the instructions of the main control system to quickly adjust the temperature and humidity.

[0141] As mentioned above, it is only a preferred embodiment of this invention patent, but the protection scope of this invention patent is not limited thereto. Any person skilled in the art within the scope disclosed by this invention patent, according to the technical solution and inventive concept of this invention patent, makes equivalent substitutions or changes, and all belong to the protection scope of this invention patent.

Claims

1. A method for controlling environmental air conditioning by combining water curtain humidity control and condenser refrigeration, characterized in that: Including steps, Get the ambient temperature and humidity values within the current time period; specifically, set two groups of temperature sensors, one of which is a main temperature sensor and the other is an auxiliary temperature sensor, collect the ambient temperature value T1 through the main temperature sensor, and collect the ambient temperature value T2 through the auxiliary temperature sensor; at the same time, set two groups of humidity sensors, one of which is a main humidity sensor and the other is an auxiliary humidity sensor, collect the ambient humidity value H1 through the main humidity sensor, and collect the ambient humidity value H2 through the auxiliary humidity sensor; Calculate the corrected temperature value based on the ambient temperature value, and calculate the corrected humidity value based on the ambient humidity value; perform the following operations specifically: If the ambient temperature value T1 < Terr, the ambient temperature value T2 < Terr, and |T1-T2| ≤ 2°C, then the correction temperature value TjA = (T1+T2) / 2, where Terr is the abnormal temperature value; If the ambient temperature value T1 is less than Terr and |T1-T2| is greater than 2°C, then the correction temperature value TjA=T1 regardless of the ambient temperature value T2. If the ambient temperature value T1 ≥ Terr, and the ambient temperature value T2 < Terr, then the correction temperature value TjA = T2; If the ambient temperature value T1 ≥ Terr, the ambient temperature value T2 ≥ Terr, then the correction temperature value TjA = Terr; If the ambient humidity value H1 < Herr, the ambient humidity value H2 < Herr, and |H1-H2| ≤ 10%, then the corrected humidity value HjA = (H1+H2) / 2, where Herr is the abnormal humidity value; If the ambient humidity value H1 is less than Herr, and |H1-H2| is greater than 10%, then the corrected humidity value HjA=H1, regardless of the value of H2. If the ambient humidity value H1≥Herr and the ambient humidity value H2<Herr, then the corrected humidity value HjA=H2; If the ambient humidity value H1≥Herr, and the ambient humidity value H2≥Herr, then the corrected humidity value HjA=Herr; Constructing a grey prediction model and predicting the corrected temperature and humidity values for the next time period based on the corrected temperature and humidity values; Compare the corrected temperature value with the preset temperature value. If the corrected temperature value is greater than or equal to the preset temperature value, the refrigerant cooling strategy is turned on before the end of the current time period, the water curtain humidity control strategy is turned off, and the composite fuzzy PID algorithm is called to adjust the fan air volume based on the corrected temperature value and the preset temperature value. If the corrected temperature value is less than the preset temperature value, the corrected humidity value is compared with the preset humidity value. If the corrected humidity value is less than or equal to the preset humidity value, the condenser cooling strategy is turned off before the end of the current time period, the water curtain humidity control strategy is turned on, and the water volume of the water curtain is dynamically adjusted according to the preset humidity value and the corrected humidity value. The composite fuzzy PID algorithm is called to adjust the fan volume according to the corrected humidity value and the preset humidity value; if the corrected humidity value is greater than the preset humidity value, the condenser cooling strategy and the water curtain humidity control strategy are turned off, and then the difference between the corrected humidity value and the preset humidity value is used to determine whether to turn on the air conditioning dehumidification function; If the corrected temperature value or the corrected humidity value is an abnormal value, the error prevention process is started and the condenser cooling strategy, the water curtain humidity control strategy, the fan air volume and the air conditioning dehumidification function are forcibly shut down; After a time period, the system returns to execute the operation of obtaining the ambient temperature and humidity values.

2. The environmental control air conditioning control method combining water curtain humidity control and condensate refrigeration according to claim 1 is characterized in that: The construction process of the grey prediction model is as follows: The original data recorded is: ， The original data includes the current air volume, water volume, time period, corrected temperature value and corrected humidity value. 0 represents the initial original data set, X 0 (n) represents the nth element in the original raw data, where n is a positive integer; Accumulate the initial original data set to obtain a new time series X 1 : ， ， Among them, X 0 (i) represents the i-th element in the initial raw data, X 1 (n) represents the nth element in the new time series; Formulate a first-order differential equation based on the new time series: ， Among them, θ and u are gray parameters; Solving the first-order differential equation yields the corrected temperature value TA and the corrected humidity value HA.

3. The environmental control air conditioning control method combining water curtain humidity control and condensate refrigeration according to claim 1 is characterized in that: The fan air volume is adjusted by calling the composite fuzzy PID algorithm according to the corrected temperature value and the preset temperature value. The specific operations are as follows: The difference between the corrected temperature value TA and the preset temperature value TB is taken as input, and the difference is processed as an absolute value. The absolute value of the difference is compared with the preset temperature threshold. If the absolute value of the difference is less than the preset temperature threshold, the PID controller is used to control the process and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset temperature threshold, the fuzzy controller is used to control the process and output the fan air volume.

4. The environmental control air conditioning control method combining water curtain humidity control and condensate refrigeration according to claim 1 is characterized in that: Dynamically adjust the water volume of the water curtain according to the preset humidity value and the corrected humidity value. The following operations are performed: Dynamically adjust the water volume of the water curtain according to the humidity difference ΔH1=HB-HA between the preset humidity value and the corrected humidity value; If the humidity difference ΔH1 ≤ the first humidity difference threshold, the water volume of the water curtain is adjusted to 0 water volume; If the humidity difference ΔH1 is greater than the first humidity difference threshold and ΔH1 is less than the second humidity difference threshold, the water volume of the water curtain is adjusted to the first water volume; If the humidity difference ΔH1 ≥ the second humidity difference threshold and ΔH1 < the third humidity difference threshold, the water volume of the water curtain is adjusted to the second water volume; If the humidity difference ΔH1 ≥ the third humidity difference threshold and ΔH1 < the fourth humidity difference threshold, the water volume of the water curtain is adjusted to the third water volume; If the humidity difference ΔH1 ≥ the fourth humidity difference threshold and ΔH1 < the fifth humidity difference threshold, the water volume of the water curtain is adjusted to the fourth water volume; If the humidity difference ΔH1 ≥ the fifth humidity difference threshold and ΔH1 < the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the fifth water volume; If the humidity difference ΔH1 ≥ the sixth humidity difference threshold, the water volume of the water curtain is adjusted to the sixth water volume; Among them, the first humidity difference threshold < the second humidity difference threshold < the third humidity difference threshold < the fourth humidity difference threshold < the fifth humidity difference threshold < the sixth humidity difference threshold, and 0 water volume < the first water volume < the second water volume < the third water volume < the fourth water volume < the fifth water volume < the sixth water volume.

5. The environmental control air conditioning control method combining water curtain humidity control and condenser refrigeration according to claim 1 is characterized in that: The fan air volume is adjusted by calling the composite fuzzy PID algorithm based on the corrected humidity value and the preset humidity value. The following operations are performed specifically: The difference between the corrected humidity value HA and the preset humidity value HB is used as input, and the difference is processed as an absolute value. The absolute value of the difference is compared with the preset humidity threshold. If the absolute value of the difference is less than the preset humidity threshold, the PID controller is used to control the process and output the fan air volume. If the absolute value of the difference is greater than or equal to the preset humidity threshold, the fuzzy controller is used to control the process and output the fan air volume.

6. The environmental control air conditioning control method combining water curtain humidity control and condensate refrigeration according to claim 3 or 5, characterized in that: The expression of the PID controller is: ， ， ， Among them, K p , K i , K d are the integral coefficient, proportional coefficient, and differential coefficient, respectively. e(t) is the input, i.e., the difference between the corrected temperature value TA and the preset temperature value TB, or the difference between the corrected humidity value HA and the preset humidity value HB. G(t) is the output fan air volume. U(t) is the real-time calculated PID output. E(t) is the maximum PID output. Kpmax is the maximum Kp value.

7. The environmental control air conditioning control method combining water curtain humidity control and condensate refrigeration according to claim 3 or 5, characterized in that: The operation process of the fuzzy controller is: setting a fuzzy rule table, looking up the table according to the actual input, calculating and outputting the corresponding fan air volume, wherein the setting method of the fuzzy rule table is as follows: taking the initial ambient temperature value or ambient humidity value at the time of startup as the initial value, taking the preset temperature value or preset humidity value as the maximum value, calculating according to 100 parts, the minimum change accuracy = (maximum value - initial value) / 100, the output is designed according to the basic principle of increasing first and then decreasing, the serial number of the fuzzy rule table = actual input / minimum change accuracy, the difference between the corrected temperature value TA and the preset temperature value TB or the difference between the corrected humidity value HA and the preset humidity value HB is the actual input.

8. The environmental control air conditioning control method combining water curtain humidity control and condenser refrigeration according to claim 1 is characterized in that: If the corrected humidity value is greater than the preset humidity value, the condenser cooling strategy and the water curtain humidity control strategy are turned off. Then, based on the difference between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function. The following operations are performed specifically: If the corrected temperature value TA is less than the preset temperature value TB, and the corrected humidity value HA is greater than the preset humidity value HB, the condenser cooling strategy and the water curtain humidity control strategy are turned off; Then, based on the humidity difference ΔH2=HA-HB between the corrected humidity value and the preset humidity value, it is determined whether to turn on the air conditioning dehumidification function: If the humidity difference ΔH2 is greater than the preset humidity difference threshold, the air conditioning dehumidification function is turned on and the fan volume is adjusted to 10% to reduce the ambient humidity. If the humidity difference ΔH2 is less than or equal to the preset humidity difference threshold, the air conditioning dehumidification function is turned off and the fan volume is adjusted to 10% to maintain the ambient humidity.

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