Methods for troubleshooting temperature and humidity sensors in independent lake water source air conditioning systems

Abstract

This invention discloses an independent lake water source air conditioning system for temperature and humidity control, and a method for correcting humidity sensor faults. It relates to the field of air conditioning system technology. The independent lake water source air conditioning system includes a water intake module, a heat exchange module, a heating module, a dehumidification module, a cooling water module, a filtration module, and a lake water source temperature control module. The humidity sensor fault correction method employs a black-box model combined with a genetic algorithm. The learned model predicts the humidity correction value, and the genetic algorithm optimizes the humidity value, thereby ensuring the stability and accuracy of the humidity sensor. This invention combines a lake water source air conditioning system with mechanical refrigeration technology, controlling the switching between different loops to achieve independent temperature and humidity control. Compared to ordinary air conditioning systems, it can achieve multi-mode operation, meeting the diverse comfort needs of modern users.

Description

Technical Field

[0001] This invention relates to the field of air conditioning system technology, and in particular to an independent lake water source air conditioning system for temperature and humidity and a method for calibrating humidity sensors. Background Art

[0002] Data shows that air conditioning systems account for a significant proportion of the total energy consumption of civil buildings in my country, indicating substantial energy-saving potential. Improving the energy efficiency of air conditioning systems has become a crucial direction for promoting green building and low-carbon development.

[0003] Lake water, as a green and renewable energy source, possesses unique energy-saving and environmental advantages. Applying lake water to air conditioning systems effectively utilizes the relatively stable temperature conditions of natural water bodies like lakes throughout the year to regulate indoor temperatures. Compared to traditional air conditioning systems, lake water source systems can meet the cooling needs of buildings in summer without relying on a refrigeration unit, and in winter, they achieve heating needs by applying low-grade heat energy. This system not only simplifies construction but also boasts high operational efficiency, maximizing the use of this high-quality natural resource, thus significantly reducing energy consumption and lowering the overall energy consumption of the air conditioning system. Lake water source air conditioning systems demonstrate outstanding potential in saving energy and reducing operating costs. Promoting and applying lake water source air conditioning systems not only helps improve the overall energy efficiency of buildings and reduce carbon emissions but also aligns with current trends in green building and energy conservation. However, the actual application of lake water source heat pump systems in civil buildings remains relatively limited. The main reason is the limitation of lake water temperature variations with the seasons, making it difficult for air conditioning systems to fully meet indoor humidity regulation requirements. Furthermore, with current technology, the utilization rate of lake water resources is relatively low, often resulting in wasted cold water resources.

[0004] In addition, air conditioning systems contain various sensors used to monitor and regulate parameters such as temperature, humidity, and air pressure to ensure the normal operation of the air conditioning equipment and the comfort of the indoor environment. Among them, humidity sensors are used to detect the humidity level of indoor air. Humidity sensors typically work by detecting the moisture content in the air. The sensor surface is more susceptible to contamination or damage, leading to inaccuracy or failure, affecting its precision, and causing abnormal humidity regulation in the air conditioning system, which seriously impacts the user's comfort experience.

[0005] Therefore, how to continuously and stably meet indoor comfort requirements and correct humidity sensor malfunctions while utilizing naturally changing outdoor heat sources remains one of the technical problems that urgently need to be solved in the design and application of lake water source air conditioning systems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides an independent lake water source air conditioning system for temperature and humidity and a method for correcting the fault of a humidity sensor. The specific technical solution is as follows:

[0007] A temperature and humidity independent lake water source air conditioning system includes:

[0008] A water intake module is used for circulating and pumping lake water. The water intake module includes a pumping pipe and a draining pipe, which extend into the lake.

[0009] The heat exchange module is connected to the water intake module at one end and extends into the room at the other end;

[0010] The heating module is connected to the heat exchange module;

[0011] The dehumidification module is connected to the heat exchange module at one end and extends into the room at the other end. The dehumidification module includes a humidity sensor.

[0012] A cooling water module is connected to the water intake module, the heating module, and the dehumidification module;

[0013] The filter module is connected to the water pumping pipe;

[0014] The lake water source temperature control module is connected to the filtration module and includes a lake water circulation component and a magnetocaloric effect temperature control component disposed within the lake water circulation component.

[0015] Preferably:

[0016] The water intake module also includes a water circulation pipeline, and a first valve, a second valve, a first water pump and a second water pump installed on the water circulation pipeline, wherein the first valve and the second water pump are connected in parallel with the second valve and the first water pump;

[0017] The heat exchange module includes a heat exchange circulation pipeline, and a first plate heat exchanger, a third water pump, a third valve, a ninth valve, a fourteenth valve and the first heat exchanger are installed on the heat exchange circulation pipeline. The first plate heat exchanger is connected to the second valve and the first water pump. The first heat exchanger is installed in a heat exchange duct, which is connected to the room.

[0018] The heating module includes a heating circulation pipeline, and an eighth valve, a tenth valve, an eleventh valve, a condenser, a sixth water pump, a throttling mechanism, and a compressor disposed on the heating circulation pipeline. The eighth valve, the tenth valve, the eleventh valve, and the sixth water pump are connected in parallel with the throttling mechanism and the compressor. The eighth valve, the tenth valve, the eleventh valve, and the sixth water pump are connected to the heat exchange circulation pipeline. The throttling mechanism and the compressor are connected to the cooling water module.

[0019] The dehumidification module also includes a dehumidification circulation pipeline and a fourth valve, a fifth valve, a chiller unit, a sixth valve, a seventh valve, a fifth water pump, a fifteenth valve, and a second heat exchanger installed on the dehumidification circulation pipeline. The fourth valve, the fifth valve, the fifth water pump, the fifteenth valve, and the second heat exchanger are connected in parallel with the sixth valve and the seventh valve. The fourth valve, the fifth valve, the fifth water pump, the fifteenth valve, and the second heat exchanger are connected to the heat exchange circulation pipeline. The sixth valve and the seventh valve are connected to the cooling water module. The second heat exchanger is installed in the dehumidification duct, which is connected to the indoor environment.

[0020] The cooling water module includes a cooling water circulation pipeline, and a second plate heat exchanger, a fourth water pump, a twelfth valve, a seventh water pump, an evaporator, and a thirteenth valve installed on the cooling water circulation pipeline. The second plate heat exchanger is connected to the first valve and the second water pump, and the evaporator is connected to the throttling mechanism and the compressor.

[0021] Preferably:

[0022] The lake water circulation component includes a first spiral tube, a second spiral tube, and a water collection pipe. The top inlet of the first spiral tube is connected to the top outlet of the second spiral tube, and the bottom outlet of the first spiral tube is connected to the bottom inlet of the second spiral tube. The water collection pipe is located inside the first spiral tube. The top inlet of the first spiral tube is provided with a water inlet hole that communicates with the filter module, and the bottom outlet of the first spiral tube is provided with a water outlet hole that communicates with the bottom of the water collection pipe.

[0023] The magnetocaloric effect temperature control component includes a first permanent magnet, a second permanent magnet, a ferromagnetic ball, and a driving component. The first permanent magnet is movably sleeved inside the first spiral tube, the second permanent magnet is movably sleeved inside the second spiral tube, the ferromagnetic ball is rolled inside the first spiral tube or the second spiral tube, and the driving component is connected to the first permanent magnet and the second permanent magnet.

[0024] Preferably, the ferromagnetic ball comprises three circular ferromagnetic plates connected perpendicularly to each other.

[0025] Preferably, the second spiral tube is disposed inside the water tank, and the water tank is connected to the water pumping pipe and the filter module.

[0026] The present invention also provides a humidity sensor fault correction method for use in the humidity sensor fault correction of the independent lake water source air conditioning system described in any one of the above-mentioned methods, the humidity sensor fault correction method comprising the following steps:

[0027] Step 1: Collect historical temperature, humidity, air flow, and heat exchanger working fluid mass flow data as input to the black box model. Based on the input parameters, use the black box model to train a model to predict the correction value of the humidity sensor. Based on the model, obtain the humidity prediction value of the faulty humidity sensor.

[0028] Step 2: Represent the hyperparameters of the black box model as a genetic algorithm "chromosome", where chromosome = [number of layers, number of first neurons, number of second neurons, learning rate, activation function];

[0029] Step 3: Use a genetic algorithm to optimize the hyperparameters of the black-box model neural network, generating an initial population of multiple neural network models, each with different hyperparameters;

[0030] Step 4: Use the M-step E as the fitness function, and perform fitness calculation and evaluation;

[0031] Step 5: Select several individuals with fitness in the top 20%, perform genetic operations, cross over the selected chromosomes, and randomly modify the chromosome parameters of several offspring to induce mutations;

[0032] Step 6: Repeat the fitness calculation, selection, crossover, and mutation process to obtain the optimal black box model after multiple generations of genetic operations;

[0033] Step 7: Input the real-time measured temperature, humidity value of the faulty humidity sensor, air flow rate, and heat exchanger working fluid mass flow rate data into the black box model optimized by the genetic algorithm to obtain the humidity correction value of the humidity sensor.

[0034] Step 8: Construct the objective function for the humidity correction value to obtain the true humidity correction value, then initialize the population to encode individuals with real numbers, and randomly generate several sets of correction parameters;

[0035] Step 9: Calculate the fitness of individuals, and select several individuals with fitness in the top 20% to perform crossover and mutation operations using the genetic algorithm. Repeat the fitness calculation, selection, crossover, and mutation process, and output the optimal correction parameter solution.

[0036] Step 10: Obtain the true humidity correction value of the faulty humidity sensor based on the calibration parameter solution. The system uses the true humidity correction value to replace the original fault value of the sensor for environmental humidity control feedback.

[0037] Preferably, the historical temperature, humidity, air flow rate, and heat exchanger working fluid mass flow rate data mentioned in step S1 are collected by sensor measurement, and the input parameter expression of the black box model is:

[0038] X = [X1, X2, X3, X4]

[0039] Where X, X1, X2, X3, and X4 are the input temperature, humidity, air flow rate, and heat exchanger working fluid mass flow rate data parameters of the black box model, respectively.

[0040] The model formula for predicting the humidity sensor correction value is:

[0041] H = f(X1,X2,X3,X4)

[0042] in Let f be the humidity prediction value, and let f be the mapping function from the input features (temperature, humidity, air flow rate, heat exchanger working fluid mass flow rate) to the humidity prediction value.

[0043] Preferably:

[0044] Step 2, which describes representing the hyperparameters of the black-box model as a "chromosome" in the genetic algorithm, specifically includes: representing the hyperparameters of the neural network as a "chromosome" according to the encoding method in the genetic algorithm steps. The "chromosome" consists of a set of genes, each gene representing a hyperparameter, and the activation function is ReLU, Sigmoid, or Tanh.

[0045] The crossover of the selected chromosomes described in step 5 specifically involves generating a new model by exchanging model parameters.

[0046] Preferably:

[0047] The fitness function mentioned in step 4 is:

[0048]

[0049] Where H is the actual humidity value. Here, n represents the predicted humidity value, and n is the number of samples.

[0050] The fitness calculation is performed using the following function:

[0051]

[0052] Where ε is a constant value to prevent MSE from being zero, and the constant value is much smaller than MSE;

[0053] The fitness function mentioned in step 9 is:

[0054] f(k, b) = (k·H) j +bH) 2

[0055] The fitness calculation is performed using the following function:

[0056]

[0057] Preferably, the objective function in step 8 is:

[0058] H z =k·H j +b

[0059] Among them, H z H is the actual humidity correction value. j Here is the humidity correction value, and k and b are the correction parameters.

[0060] The independent lake water source air conditioning system and humidity sensor fault correction method provided by this invention have the following beneficial effects:

[0061] 1. By combining a lake water source air conditioning system with mechanical refrigeration technology, and based on the comfort needs of indoor users, the system switches between different loops by controlling the opening and closing of system valve components, the start and stop of water pumps, and the operation of chiller units and heat pump systems, thereby adjusting the system's operating mode and achieving independent control of temperature and humidity. Compared with ordinary air conditioning systems, this invention can achieve individual dehumidification, heating, and cooling of indoor rooms, or simultaneous dehumidification and cooling, heating and dehumidification, enabling the invention to achieve more efficient, economical and comfortable operation in various environments, meeting the diverse comfort needs of modern users;

[0062] 2. A black-box model combined with a genetic algorithm is used to optimize the hyperparameters of the black-box model (neural network model) and predict humidity correction values ​​based on the optimized model. In order to improve the accuracy of the model's humidity prediction, a genetic algorithm is used again to optimize the humidity value, ensuring the stability and accuracy of the humidity sensor during long-term operation.

[0063] 3. The cooling mode can meet the summer cooling needs of buildings without the need for a refrigeration unit. Compared with traditional air conditioning systems, the cooling mode of this invention does not require the installation or use of components such as cooling towers. Therefore, the system structure design is simple, which can not only achieve sustainable indoor cooling and save operating costs in the long term, but also reduce carbon emissions and is environmentally friendly.

[0064] 4. Since the evaporator end of the heat pump system is connected in parallel with the condenser end of the chiller unit, the temperature of the working fluid at the evaporator end decreases after heat exchange in the heat pump system evaporator, while the temperature of the working fluid at the condenser end increases after passing through the chiller unit condenser. Therefore, the working fluid at the evaporator end recovers the waste heat of the working fluid at the condenser end, thereby improving the energy utilization rate of the system and reducing the system energy consumption. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0066] Figure 1 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity provided in an embodiment of the present invention;

[0067] Figure 2 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity in cooling and dehumidification mode, provided for an embodiment of the present invention;

[0068] Figure 3 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity provided in an embodiment of the present invention in a cooling-without-dehumidification mode;

[0069] Figure 4 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity provided in the embodiment of the present invention under heating and dehumidification mode;

[0070] Figure 5 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity provided in the embodiment of the present invention in the heating without dehumidification mode;

[0071] Figure 6 A system principle block diagram of an independent lake water source air conditioning system for temperature and humidity in dehumidification mode, provided for an embodiment of the present invention;

[0072] Figure 7 A front view of the lake water source temperature regulation module provided in an embodiment of the present invention;

[0073] Figure 8 A three-dimensional structural diagram of a ferromagnetic ball provided for an embodiment of the present invention.

[0074] Figure Labels

[0075] 100-Water intake module; 101-Water pumping pipe; 102-Drainage pipe; 200-Heat exchange module; 300-Heating module; 400-Dehumidification module; 500-Cooling water module; 600-Filtration module; 700-Lake water source temperature control module; 710-Lake water circulation module; 711-First spiral pipe; 712-Second spiral pipe; 713-Water collection pipe; 714-Water tank; 720-Magnetic-thermal effect temperature control component; 721-First permanent magnet; 722-Second permanent magnet; 723-Ferromagnetic ball; 7231-Circular ferromagnetic plate;

[0076] 1-First valve; 2-Second valve; 3-First water pump; 4-First plate heat exchanger; 5-Second plate heat exchanger; 6-Second water pump; 7-Third water pump; 8-Fourth water pump; 9-Third valve; 10-Fourth valve; 11-Fifth valve; 12-Chiller unit; 13-Sixth valve; 14-Seventh valve; 15-Eighth valve; 16-Ninth valve; 17-Tenth valve; 18-Fifth water pump; 19-Eleventh valve; 20-Condenser; 21-Sixth water pump; 22-Throttling mechanism; 23-Compressor; 24-Twelfth valve; 25-Seventh water pump; 26-Evaporator; 27-Thirteenth valve; 28-Fourteenth valve; 29-First heat exchanger; 30-Fifteenth valve; 31-Second heat exchanger. DETAILED DESCRIPTION

[0077] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0078] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0079] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0080] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0081] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0082] Please see Figures 1 to 8 This embodiment provides an independent lake water source air conditioning system for temperature and humidity control, including a water intake module 100, a heat exchange module 200, a heating module 300, a dehumidification module 400, a cooling water module 500, a filtration module 600, and a lake water source temperature regulation module 700.

[0083] The water intake module 100 is used for circulating and pumping lake water. The water intake module 100 includes a pumping pipe 101 and a draining pipe 102, which extend into the lake.

[0084] One end of the heat exchange module 200 is connected to the water intake module 100, and the other end extends into the room. The heat exchange module 200 can cool or heat up the lake water by exchanging heat with the working medium, and then exchange heat between the cooled or heated working medium and the indoor air to achieve cooling or heating.

[0085] The heating module 300 is connected to the heat exchange module 200 to supplement heat when the lake water is not heated enough.

[0086] The dehumidification module 400 is connected to the heat exchange module 200 at one end and extends into the room at the other end. The dehumidification module 400 includes a humidity sensor.

[0087] The cooling water module 500 is connected to the water intake module 100, the heating module 300, and the dehumidification module 400.

[0088] The filter module 600 is connected to the water pumping pipe 101 and is used to filter out impurities such as mud and sand from the lake water.

[0089] The lake water source temperature control module 700 is connected to the filtration module 600 and includes a lake water circulation component 710 and a magnetocaloric effect temperature control component 720 disposed within the lake water circulation component 710. The lake water circulation component 710 allows the extracted lake water to circulate. The magnetocaloric effect component 720 is based on the magnetocaloric effect, i.e., the temperature can be changed by ferromagnetic materials entering and exiting a magnetic field. The ferromagnetic materials in the magnetocaloric effect component 720 can circulate under the drive of the lake water circulation component 710 and continuously enter and exit the magnetic field to achieve temperature increases and decreases, thereby cooling or heating the lake water and realizing lake water source temperature control.

[0090] The independent lake water source air conditioning system for temperature and humidity provided in this embodiment has the following beneficial effects:

[0091] 1. By combining a lake water source air conditioning system with mechanical refrigeration technology, and adjusting the system's operating mode by switching between different circuits according to the comfort needs of indoor users, independent control of temperature and humidity can be achieved. Compared with ordinary air conditioning systems, this embodiment can achieve individual dehumidification, heating, and cooling of indoor rooms, or simultaneous dehumidification and cooling, heating and dehumidification. This allows the invention to achieve more efficient, economical, and comfortable operation in various environments, meeting the diverse comfort needs of modern users.

[0092] 2. The cooling mode can meet the summer cooling needs of buildings without the need for a refrigeration unit. Compared with traditional air conditioning systems, the cooling mode of this invention does not require the installation or use of components such as cooling towers. Therefore, the system structure design is simple, which can not only achieve sustainable indoor cooling and save operating costs in the long term, but also reduce carbon emissions and is environmentally friendly.

[0093] Further, please see Figure 1 :

[0094] The water intake module 100 also includes a water circulation pipeline, and a first valve 1, a second valve 2, a first water pump 3 and a second water pump 6 installed on the water circulation pipeline. The first valve 1 and the second water pump 6 are connected in parallel with the second valve 2 and the first water pump 3.

[0095] The heat exchange module 200 includes a heat exchange circulation pipeline, and a first plate heat exchanger 4, a third water pump 7, a third valve 9, a ninth valve 16, a fourteenth valve 28 and a first heat exchanger 29 installed on the heat exchange circulation pipeline. The first plate heat exchanger 4 is connected to the second valve 2 and the first water pump 3. The first heat exchanger 29 is installed in the heat exchange air duct, which is connected to the room.

[0096] The heating module 300 includes a heating circulation pipeline, and an eighth valve 15, a tenth valve 17, an eleventh valve 19, a condenser 20, a sixth water pump 21, a throttling mechanism 22, and a compressor 23 located on the heating circulation pipeline. The eighth valve 15, the tenth valve 17, the eleventh valve 19, the sixth water pump 21 are connected in parallel with the throttling mechanism 22 and the compressor 23. The eighth valve 15, the tenth valve 17, the eleventh valve 19, and the sixth water pump 21 are connected to the heat exchange circulation pipeline, and the throttling mechanism 22 and the compressor 23 are connected to the cooling water module 500.

[0097] The dehumidification module 400 also includes a dehumidification circulation pipeline and a fourth valve 10, a fifth valve 11, a chiller unit 12, a sixth valve 13, a seventh valve 14, a fifth water pump 18, a fifteenth valve 30, and a second heat exchanger 31 installed on the dehumidification circulation pipeline. The fourth valve 10, the fifth valve 11, the fifth water pump 18, the fifteenth valve 30, and the second heat exchanger 31 are connected in parallel with the sixth valve 13 and the seventh valve 14. The fourth valve 10, the fifth valve 11, the fifth water pump 18, the fifteenth valve 30, and the second heat exchanger 31 are connected to the heat exchange circulation pipeline. The sixth valve 13 and the seventh valve 14 are connected to the cooling water module 500. The second heat exchanger 31 is installed in the dehumidification duct, which is connected to the indoor environment.

[0098] The cooling water module 500 includes a cooling water circulation pipeline, and a second plate heat exchanger 5, a fourth water pump 8, a twelfth valve 24, a seventh water pump 25, an evaporator 26 and a thirteenth valve 27 installed on the cooling water circulation pipeline. The second plate heat exchanger 5 is connected to the first valve 1 and the second water pump 6, and the evaporator 26 is connected to the throttling mechanism 22 and the compressor 23.

[0099] Please see Figures 2 to 6 , Figures 2 to 6 The dashed lines represent pipes in the off state, and the solid lines represent pipes in the on state. The system has five modes: dehumidification and cooling, cooling without dehumidification, heating and dehumidification, heating without dehumidification, and dehumidification.

[0100] like Figure 1 As shown, the system comprises a chilled water refrigerant circulation loop in refrigeration mode, consisting of a first plate heat exchanger 2, a third water pump 7, a third valve 9, a ninth valve 16, a fourteenth valve 28, and a first heat exchanger 29. A chilled water refrigerant circulation loop for the chiller unit in dehumidification mode, consisting of a first plate heat exchanger 4, a third water pump 7, a fourth valve 10, a chiller unit 12, a fifth valve 11, a fifth water pump 18, a fifteenth valve 30, and a second heat exchanger 31. A heat pump system refrigerant circulation loop in heating mode, consisting of a condenser 20, a sixth water pump 21, an eleventh valve 19, a fourteenth valve 28, a first heat exchanger 29, an eighth valve 15, and a fifth water pump 18. A cooling water refrigerant circulation loop for the condenser within the chiller unit in dehumidification mode, consisting of a second plate heat exchanger 5, a fourth water pump 8, a seventh valve 14, a chiller unit 12, and a sixth valve 13. The heat pump system in heating mode consists of the second plate heat exchanger 5, the fourth water pump 8, the thirteenth valve 27, the evaporator 26, the seventh water pump 25, and the twelfth valve 24, forming the evaporator end working fluid circulation loop. The main loop for heat exchange circulation of lake water working fluid consists of the first plate heat exchanger 4, the first water pump 3, and lake water. A sub-loop for heat exchange circulation of lake water working fluid consists of the second plate heat exchanger 5, the second water pump 6, and lake water.

[0101] like Figure 2As shown, when a user has both dehumidification and cooling needs, the system operates in dehumidification and cooling mode. Specifically, the system components in this dehumidification and cooling mode include: first valve 1, second valve 2, first water pump 3, first plate heat exchanger 4, second plate heat exchanger 5, second water pump 6, third water pump 7, fourth water pump 8, third valve 9, fourth valve 10, fifth valve 11, chiller unit 12, sixth valve 13, seventh valve 14, ninth valve 16, fifth water pump 18, eleventh valve 19, twelfth valve 24, seventh water pump 25, evaporator 26, thirteenth valve 27, fourteenth valve 28, first heat exchanger 29, fifteenth valve 30, and second heat exchanger 31.

[0102] The valves in the system are open as follows: valve 1, valve 2, valve 9, valve 10, valve 11, valve 13, valve 14, valve 16, valve 28, and valve 30; valves closed as follows: valve 15, valve 17, valve 19, valve 24, and valve 27.

[0103] The system's water pumps are started and stopped as follows: pumps 3 (first), 6 (second), 7 (third), 8 (fourth), and 18 (fifth) are started; pumps 21 (sixth) and 25 (seventh) are stopped.

[0104] The system is operating with the chiller unit running and the heat pump system shut down.

[0105] The specific principle of the dehumidification and cooling mode is as follows: Water pump 1 transports lake water at a temperature of 8℃~13℃ into the first plate heat exchanger 4, where it exchanges heat with the working fluid on the other side of the first plate heat exchanger 4 before being discharged into the lake. After the working fluid on the other side cools down, it is transported by the third water pump 7. The working fluid is divided into two paths after passing through water pump 7; one path passes through the third valve 9 and the ninth valve 16, then through the fourteenth valve 28 to enter the first heat exchanger 29. The working fluid entering the first heat exchanger 29 interacts with the air in the other side of the duct. The system generates cooling capacity through heat exchange with the air, lowering the air temperature before it enters the room according to a set target temperature. The working fluid, after exchanging heat with the air in the first heat exchanger 29, returns to the first plate heat exchanger 4 after its temperature rises, thus completing one cycle of cooling the air in the room. The other working fluid, after being split, is transported by the fifth water pump 18 through the fourth valve 10 and then enters the evaporator in the chiller unit 12. The chiller unit 12 includes an evaporator and a condenser. The system consists of a compressor, a throttling device, and a refrigeration principle as follows: The compressor compresses low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure refrigerant vapor. The refrigerant vapor enters the condenser and is cooled and condensed by cooling water supplied by the fourth water pump 8 through the seventh valve 14. The cooling water is obtained by exchanging heat with lake water supplied by the second water pump 6 in the second plate heat exchanger 5. After passing through the condenser, the refrigerant is throttled into a low-temperature, low-pressure two-phase refrigerant. The throttled refrigerant then enters the evaporator. After heat exchange in the evaporator, the working fluid is cooled a second time. Then, it is supplied by the fifth water pump 18 through the fifth valve 11 and the fifteenth valve 30 into the second heat exchanger 31. The air exchanges heat with the second heat exchanger 31, dehumidifying the air. The dehumidification principle is that the lower evaporation temperature condenses the moisture in the air, thus achieving the purpose of dehumidification. The dehumidified working fluid is mixed with the working fluid whose temperature has increased after cooling the air. The working fluid then returns to the first plate heat exchanger 4, thus completing one cycle of the dehumidification refrigeration mode.

[0106] like Figure 3 As shown, when the user only has cooling needs, the system operates in a cooling-without-dehumidifying mode. Specifically, the system components in the cooling-without-dehumidifying mode include the second valve 2, the first water pump 3, the first plate heat exchanger 4, the third water pump 7, the third valve 9, the ninth valve 16, the fourteenth valve 28, and the first heat exchanger 29.

[0107] The valves in the system are open as follows: valve 2, valve 9, valve 16, and valve 28; valves closed as follows: valve 1, valve 10, valve 11, valve 13, valve 14, valve 15, valve 17, valve 19, valve 24, valve 27, and valve 30.

[0108] The system's water pumps are started and stopped as follows: pump 3 (first pump) and pump 7 (third pump); pumps that are stopped are pump 6 (second pump), pump 8 (fourth pump), pump 18 (fifth pump), pump 21 (sixth pump), and pump 25 (seventh pump).

[0109] The system is operating with both the chiller and heat pump systems shut down.

[0110] The specific principle of the cooling-without-dehumidifying mode is similar to that of the cooling process in the dehumidifying-cooling mode described above, and will not be described here. The difference from the above mode is that the user does not have a dehumidification requirement in the cooling-without-dehumidifying mode.

[0111] like Figure 4 As shown, when a user has both heating and dehumidification needs, the system operates in heating and dehumidification mode. Specifically, the system components in this heating and dehumidification mode include: first valve pump 1, second valve 2, first water pump 3, first plate heat exchanger 4, second plate heat exchanger 5, second water pump 6, third water pump 7, fourth water pump 8, fourth valve 10, fifth valve 11, chiller unit 12, sixth valve 13, seventh valve 14, eighth valve 15, tenth valve 17, fifth water pump 18, eleventh valve 19, condenser 20, sixth water pump 21, throttling mechanism 22, compressor 23, twelfth valve 24, seventh water pump 25, evaporator 26, thirteenth valve 27, fourteenth valve 28, first heat exchanger 29, fifteenth valve 30, and second heat exchanger 31.

[0112] The valves in the system are open as follows: valve 1, valve 2, valve 10, valve 11, valve 13, valve 14, valve 15, valve 17, valve 19, valve 24, valve 27, valve 28, and valve 30; valves closed are valve 9 and valve 16.

[0113] The system's water pump start-up and shutdown status is as follows: Pumps 3 (first), 6 (second), 7 (third), 8 (fourth), 18 (fifth), 21 (sixth), and 26 (seventh) are started. No pumps are stopped.

[0114] The system is operating with the chiller unit and heat pump system both on.

[0115] The specific principle of the heating and dehumidification mode is as follows: the compressor 23 compresses the refrigerant into a high-temperature and high-pressure refrigerant gas, which then enters the condenser 23. In the condenser 23, the refrigerant exchanges heat with the working fluid on the other side of the heat exchanger, transferring heat to the working fluid. After the working fluid temperature rises, the sixth water pump 21 transports the working fluid through the eleventh valve 19 and the fourteenth valve 28 into the first heat exchanger 29. In the first heat exchanger 29, the working fluid exchanges heat with the air, heating the air to meet the temperature requirements of the user's room. Subsequently, the working fluid is cooled by the air in the duct, and then the sixth water pump 21 transports the working fluid through the eighth valve 15 and the tenth valve 17 back to the condenser 20 for heat exchange. The system completes the heating process for the user's room through the above process. The refrigerant gas in the heat pump system is cooled and condensed in the condenser 20 and then enters the throttling mechanism 22, where it is throttled and depressurized into a two-phase refrigerant. The two-phase refrigerant then enters the evaporator 26 to exchange heat with the working fluid on the other side. The working fluid on the other side is pumped by the second water pump 6 through the first valve pump 1 into the second plate heat exchanger 5 to exchange heat with the working fluid. The working fluid is transported by the fourth water pump 8, and under the transport of the fourth water pump 8, the working fluid is split into two streams. One stream is transported by the seventh water pump 25 through the thirteenth... The refrigerant enters the evaporator 26 through valve 27, undergoes heat exchange, and then passes through the twelfth valve 24 to mix with another working fluid before returning to the second plate heat exchanger 5, completing one working fluid cycle. The other working fluid passes through the seventh valve 14 to enter the condenser in the chiller unit 12, where it dissipates heat and then passes through the sixth valve 13 to mix with the aforementioned working fluid. The refrigerant undergoes heat exchange in the evaporator 25 and then returns to the compressor for compression, completing one cycle of the heat pump system. Simultaneously, it completes the heating and dehumidification mode of the system. Preferably, because the evaporator end of the heat pump system is connected in parallel with the condenser end of the chiller unit, the working fluid at the evaporator end experiences a temperature decrease after heat exchange in the evaporator, while the working fluid at the condenser end experiences a temperature increase after passing through the chiller unit's condenser. Therefore, the working fluid at the evaporator end recovers the waste heat from the working fluid at the condenser end. The dehumidification method is similar to the dehumidification stage in the aforementioned system dehumidification and cooling mode, except that this stage involves heating rather than cooling.

[0116] In this system, the evaporator end of the heat pump system is connected in parallel with the condenser end of the chiller unit. The working fluid at the evaporator end decreases in temperature after heat exchange in the evaporator of the heat pump system, while the working fluid at the condenser end increases in temperature after passing through the condenser of the chiller unit. Therefore, the working fluid at the evaporator end recovers the waste heat of the working fluid at the condenser end, thereby improving the energy utilization rate of the system and reducing the system energy consumption.

[0117] like Figure 5As shown, when users only have heating needs, the system operates in a heating-without-dehumidification mode. Specifically, the system components in this heating-without-dehumidification mode include: a first valve pump 1, a second plate heat exchanger 5, a second water pump 6, a fourth water pump 8, an eighth valve 15, a tenth valve 17, an eleventh valve 19, a condenser 20, a sixth water pump 21, a throttling mechanism 22, a compressor 23, a twelfth valve 24, a seventh water pump 25, an evaporator 26, a thirteenth valve 27, a fourteenth valve 28, and a first heat exchanger 29.

[0118] The valves in the system are open as follows: valve 1, valve 15, valve 17, valve 19, valve 24, valve 27, and valve 28; valves closed as follows: valve 2, valve 9, valve 10, valve 11, valve 13, valve 14, valve 16, and valve 30.

[0119] The system's water pump start-up and shutdown status is as follows: the pumps that are started are the second pump 6, the fourth pump 8, the sixth pump 21, and the seventh pump 25; the pumps that are stopped are the first pump 3, the third pump 7, and the fifth pump 18.

[0120] The system is described as operating with the chiller unit switched off and on, and the heat pump system running.

[0121] The specific principle of the heating without dehumidification mode is similar to the dehumidification process in the dehumidification and cooling mode described above, and will not be described here. The difference from the above mode is that the user does not have a cooling requirement in the cooling without dehumidification mode.

[0122] like Figure 6 As shown, when the user only needs dehumidification, the system operates in dehumidification mode. Specifically, the system components in this dehumidification mode include: first valve 1, second valve 2, first water pump 3, first plate heat exchanger 4, second plate heat exchanger 5, second water pump 6, third water pump 7, fourth water pump 8, fourth valve 10, fifth valve 11, chiller unit 12, sixth valve 13, seventh valve 14, fifth water pump 18, fifteenth valve 30, and second heat exchanger 31.

[0123] The valves in the system are open as follows: valve 1, valve 2, valve 10, valve 11, valve 13, valve 14, and valve 30; valves closed as follows: valve 9, valve 15, valve 16, valve 17, valve 19, valve 24, valve 27, and valve 28.

[0124] The system's water pump start-up and shutdown status is as follows: the pumps that are started are: first pump 3, second pump 6, third pump 7, fourth pump 8, and fifth pump 18; the pumps that are stopped are: sixth pump 21 and seventh pump 25.

[0125] The system is operating with the chiller unit on and the heat pump system off.

[0126] The specific principle of the dehumidification mode is similar to that of the heating dehumidification mode described above, and will not be described here. The difference from the above mode is that the user does not have a dehumidification requirement in the heating dehumidification mode.

[0127] Furthermore:

[0128] The lake water circulation component 710 includes a first spiral tube 711, a second spiral tube 712, and a water collection pipe 713. The top inlet of the first spiral tube 711 is connected to the top outlet of the second spiral tube 712, and the bottom outlet of the first spiral tube 711 is connected to the bottom inlet of the second spiral tube 712. The water collection pipe 713 is located inside the first spiral tube 711. The top inlet of the first spiral tube 711 is provided with a water inlet hole that communicates with the filter module 600, and the bottom outlet of the first spiral tube 711 is provided with a water outlet hole that communicates with the bottom of the water collection pipe 713.

[0129] The magnetocaloric effect temperature control component 720 includes a first permanent magnet 721, a second permanent magnet 722, a ferromagnetic ball 723, and a drive component. The first permanent magnet 721 is movably sleeved inside the first spiral tube 711, the second permanent magnet 722 is movably sleeved inside the second spiral tube 712, and the ferromagnetic ball 723 is rolled inside the first spiral tube 711 or the second spiral tube 712. The drive component is connected to the first permanent magnet 721 and the second permanent magnet 722.

[0130] Please see Figure 7After filtration, the extracted lake water enters the first spiral tube 711 through the inlet hole at the top and flows downwards, simultaneously pushing the ferromagnetic ball 723 along the first spiral tube 711. When the lake water reaches the bottom of the first spiral tube 711, some of the water flows from the outlet hole at the bottom of the first spiral tube 711 into the water collection pipe 713, while the ferromagnetic ball 723 is blocked by the outlet hole and continues to move towards the second spiral tube 712 under the push of the lake water. The lake water continuously flows in from the inlet hole and circulates between the first spiral tube 711 and the second spiral tube 712. Some of the lake water flows out from the outlet hole during circulation, allowing the ferromagnetic ball 723 to continuously move between the first spiral tube 711 and the second spiral tube 712. The drive component can drive the first permanent magnet 721 and the second permanent magnet 722 to rise or fall respectively. When the first permanent magnet 721 descends into the first spiral tube 711, the second permanent magnet 722 rises away from the second spiral tube 712. When the ferromagnetic ball 723 moves into the first spiral tube 711, the magnetic field it receives increases, thus raising the temperature and releasing heat to the lake water in the water collection pipe 713. When it moves into the second spiral tube 712, the magnetic field decreases, thus lowering the temperature and gradually absorbing the temperature outside the second spiral tube 712. This process is continuously repeated to achieve lake water source heating. When the second permanent magnet 721 rises away from the first spiral tube 711, the second permanent magnet 722 descends into the second spiral tube 722. When the ferromagnetic ball 723 moves between the first spiral tube 711 and the second spiral tube 712, it can continuously absorb heat from the lake water in the water collection pipe 713. Similarly, this achieves lake water source cooling.

[0131] Further, please see Figure 8 The ferromagnetic ball 723 comprises three circular ferromagnetic plates 7231 connected perpendicularly to each other, which facilitates the movement driven by water flow.

[0132] Further, please see Figure 7 The second spiral tube 712 is installed in the water tank 714, which is connected to the water pumping pipe 101 and the filter module 600. Specifically, the water pumping pipe 101 can first pump lake water into the water tank 714, and then pump the water in the water tank 714 into the filter module 600. After the water tank 714 is filled with lake water, it is convenient for the magnetic ball 723 in the second spiral tube 712 to release and absorb heat.

[0133] This embodiment also provides a humidity sensor fault correction method for the humidity sensor fault correction in any of the above-mentioned independent lake water source air conditioning systems. In a lake water source central air conditioning system, the humidity sensor may output incorrect humidity values ​​due to various factors (such as aging, environmental changes, etc.), causing the control system to malfunction. This embodiment uses a black box model combined with a genetic algorithm to correct the fault of the humidity sensor in the central air conditioning system.

[0134] The main role of the black-box model (e.g., neural network) in this embodiment is to learn the relationship between different variables (temperature, humidity, air flow, heat exchanger working fluid mass flow) and the corrected humidity in historical data, so as to predict the corrected value of the humidity sensor fault data in real time operation.

[0135] Genetic algorithms are used to optimize the hyperparameters (such as the number of layers and the learning rate) of neural network models, searching for the best-performing model through an evolutionary process to obtain the corrected humidity value. Preferably, the purpose of using a genetic algorithm a second time to optimize the corrected humidity value is to improve the accuracy of the results.

[0136] By inputting this real-time data, the process of correcting humidity values ​​using a black-box model (neural network model) combined with a genetic algorithm includes the following steps:

[0137] Step 1: Collect historical temperature, humidity, air flow, and heat exchanger working fluid mass flow data as input to the black box model (neural network model). Based on the input parameters, use the black box model (neural network model) to train a model to predict the correction value of the humidity sensor. Based on the model, obtain the humidity prediction value of the faulty humidity sensor.

[0138] Historical temperature, humidity, airflow, and heat exchanger working fluid mass flow rate data are collected from sensor measurements. The input parameter expression for the black-box model (neural network model) is:

[0139] X = [X1, X2, X3, X4]

[0140] Where X, X1, X2, X3, and X4 are the multi-dimensional data parameters of the input temperature, humidity, air flow rate, and heat exchanger working fluid mass flow rate of the black box model, respectively.

[0141] The black-box model is a neural network, trained on historical data. During training, the model learns the functional relationships between temperature, faulty humidity value, airflow rate, heat exchanger working fluid mass flow rate, and actual humidity. When the humidity sensor may malfunction or deviate, the model can calculate the predicted humidity value using these variables. The model formula is:

[0142]

[0143] in Let f be the predicted humidity value, and let f be the mapping function from the input features (temperature, humidity, air flow rate, heat exchanger working fluid mass flow rate) to the predicted humidity value.

[0144] Step 2: Represent the hyperparameters of the black box model (neural network model) in the form of a genetic algorithm "chromosome", where chromosome = [number of layers, number of neurons 1, number of neurons 2, learning rate, activation function].

[0145] For example:

[0146] Chromosome 1 = [2, 100, 50, 0.01, ReLU]

[0147] In the above formula, chromosome 1 = [represents a 2-layer neural network, with 100 neurons in the first layer and 50 neurons in the second layer, a learning rate of 0.01, and an activation function of ReLU].

[0148] Representing the hyperparameters of a neural network as "chromosomes" in a genetic algorithm is the encoding method within the steps of a genetic algorithm. A genetic algorithm needs to represent the hyperparameters of a neural network as "chromosomes," which consist of a set of genes, with each gene representing a specific hyperparameter.

[0149] Activation functions include: ReLU, Sigmoid, and Tanh.

[0150] Step 3: To improve the accuracy of the humidity sensor calibration value prediction model, a genetic algorithm is used to optimize the hyperparameters of the neural network. An initial population of multiple neural network models is generated, each with different hyperparameters.

[0151] Step 4: Use MSE as the fitness function and perform fitness calculation and evaluation.

[0152]

[0153] Where H is the actual humidity value. is the predicted humidity value, which is the humidity value output by the model, and n is the number of samples.

[0154] The fitness value calculation function is as follows:

[0155]

[0156] Here, ε is a small value to prevent MSE from being zero.

[0157] The evaluation is to select individuals with higher fitness levels for the next selection operation.

[0158] Step 5: Select individuals with high fitness, perform genetic operations, cross over the selected chromosomes, and randomly modify some chromosome parameters of the offspring to induce mutations.

[0159] Crossover generates a new model by exchanging model parameters. For example, if the parameters of two models are [2,100,50,0.01,ReLU] and [3,150,70,0.001,Tanh], crossover can be performed at a certain point, such as a single-point crossover after the second gene: [2,150,50,0.01,ReLU] and [3,100,70,0.001,Tanh].

[0160] Mutation is the random alteration of certain genes in an individual. For example, if the learning rate of [2,100,50,0.01,ReLU] in the above formula is randomly changed to 0.005, or the activation function is changed to Tanh, then the mutated individual will be [2,100,50,0.005,Tanh].

[0161] Step 6: Through multiple generations of genetic operations, repeat the fitness calculation, selection, crossover, and mutation processes until the optimal black box model (neural network) is finally found.

[0162] Step 7: Input the real-time measured temperature, humidity value of the faulty humidity sensor, air flow rate, and heat exchanger working fluid mass flow rate data into the black box model (neural network model) optimized by the genetic algorithm to obtain the humidity correction value of the humidity sensor.

[0163] Step 8: Construct the objective function for the humidity correction value to obtain the true humidity correction value. Then initialize the population, encode individuals with real numbers, and randomly generate several sets of correction parameters.

[0164] Objective function:

[0165] H z =k·H j +b

[0166] Among them, H z H is the actual humidity correction value. j The humidity correction value is represented by k and b, which are correction parameters encoded using real numbers. For example:

[0167] Individual 1: (1, 2)

[0168] In individual 1, k = 1 and b = 2.

[0169] Step 9: Calculate the fitness of individuals, and select individuals with high fitness to perform crossover and mutation operations using the genetic algorithm. Repeat the fitness calculation, selection, crossover, and mutation process until the requirements are met, and output the optimal correction parameter solution.

[0170] The fitness function is:

[0171] f(k, b) = (k·H) j +bH) 2

[0172] Where H is the actual humidity value, H j The humidity prediction value is the humidity value output by the optimal model.

[0173] The fitness value calculation function is as follows:

[0174]

[0175] Here, ε is a small value to prevent MSE from being zero.

[0176] Step 10: Obtain the true humidity correction value of the faulty humidity sensor based on the calibration parameters. The system uses the true humidity correction value to replace the original fault value of the sensor for environmental humidity control feedback.

[0177] This implementation uses a black-box model combined with a genetic algorithm to optimize the hyperparameters of the black-box model (neural network model) and predict humidity correction values ​​based on the optimized model. In order to improve the accuracy of the model's humidity prediction, a genetic algorithm is used again to optimize the humidity value, ensuring the stability and accuracy of the humidity sensor during long-term operation.

[0178] Working principle:

[0179] By combining lake water resources with mechanical refrigeration technology, the system provides suitable temperature and humidity for different climatic conditions. Specifically, when improved thermal comfort is required in user rooms, the system switches between dehumidification / cooling, cooling without dehumidification, heating / dehumidification, heating without dehumidification, and dehumidification modes by opening and closing various valve components and starting and stopping the water pump. This ensures user comfort while fully utilizing lake water resources and minimizing energy consumption and operating costs. Furthermore, when the humidity sensor malfunctions, a black-box model (neural network model) combined with a genetic algorithm is used to correct the fault parameters. The corrected humidity value is then used to replace the original fault value for environmental humidity control feedback, correcting the humidity sensor malfunction and ensuring stable and reliable operation of the air conditioning system.

[0180] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0181] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other occasions without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A temperature and humidity independent lake water source air conditioning system, characterized in that, include: A water intake module (100) is used for circulating and pumping lake water. The water intake module (100) includes a pumping pipe (101) and a drain pipe (102), which extend into the lake. A heat exchange module (200) is connected at one end to the water intake module (100) and extends into the room at the other end; A heating module (300) is connected to the heat exchange module (200); A dehumidification module (400) is connected at one end to the heat exchange module (200) and extends into the room at the other end. The dehumidification module (400) includes a humidity sensor. Cooling water module (500) is connected to the water intake module (100), heating module (300) and dehumidification module (400). Filter module (600) is connected to the water pumping pipe (101); The lake water source temperature control module (700), connected to the filter module (600), includes a lake water circulation component (710) and a magnetocaloric effect temperature control component (720) disposed within the lake water circulation component (710). in: The water intake module (100) also includes a water circulation pipeline, and a first valve (1), a second valve (2), a first water pump (3) and a second water pump (6) installed on the water circulation pipeline. The first valve (1) and the second water pump (6) are connected in parallel with the second valve (2) and the first water pump (3). The heat exchange module (200) includes a heat exchange circulation pipeline, and a first plate heat exchanger (4), a third water pump (7), a third valve (9), a ninth valve (16), a fourteenth valve (28) and a first heat exchanger (29) disposed on the heat exchange circulation pipeline. The first plate heat exchanger (4) is connected to the second valve (2) and the first water pump (3). The first heat exchanger (29) is disposed in a heat exchange duct, which is connected to the room. The heating module (300) includes a heating circulation pipeline, and an eighth valve (15), a tenth valve (17), an eleventh valve (19), a condenser (20), a sixth water pump (21), a throttling mechanism (22), and a compressor (23) provided on the heating circulation pipeline. The eighth valve (15), the tenth valve (17), the eleventh valve (19), and the sixth water pump (21) are connected in parallel with the throttling mechanism (22) and the compressor (23). The eighth valve (15), the tenth valve (17), the eleventh valve (19), and the sixth water pump (21) are connected to the heat exchange circulation pipeline. The throttling mechanism (22) and the compressor (23) are connected to the cooling water module (500). The dehumidification module (400) also includes a dehumidification circulation pipeline and a fourth valve (10), a fifth valve (11), a chiller unit (12), a sixth valve (13), a seventh valve (14), a fifth water pump (18), a fifteenth valve (30), and a second heat exchanger (31) installed on the dehumidification circulation pipeline. The fourth valve (10), the fifth valve (11), the fifth water pump (18), the fifteenth valve (30), and the second heat exchanger (31) are connected in parallel with the sixth valve (13) and the seventh valve (14). The fourth valve (10), the fifth valve (11), the fifth water pump (18), the fifteenth valve (30), and the second heat exchanger (31) are connected to the heat exchange circulation pipeline. The sixth valve (13) and the seventh valve (14) are connected to the cooling water module (500). The second heat exchanger (31) is installed in the dehumidification duct, which is connected to the room. The cooling water module (500) includes a cooling water circulation pipeline, and a second plate heat exchanger (5), a fourth water pump (8), a twelfth valve (24), a seventh water pump (25), an evaporator (26) and a thirteenth valve (27) installed on the cooling water circulation pipeline. The second plate heat exchanger (5) is connected to the first valve (1) and the second water pump (6), and the evaporator (26) is connected to the throttling mechanism (22) and the compressor (23).

2. The independent lake water source air conditioning system for temperature and humidity control according to claim 1, characterized in that: The lake water circulation component (710) includes a first spiral tube (711), a second spiral tube (712), and a water collection pipe (713). The top inlet of the first spiral tube (711) is connected to the top outlet of the second spiral tube (712), and the bottom outlet of the first spiral tube (711) is connected to the bottom inlet of the second spiral tube (712). The water collection pipe (713) is located inside the first spiral tube (711). The top inlet of the first spiral tube (711) is provided with a water inlet hole that communicates with the filter module (600), and the bottom outlet of the first spiral tube (711) is provided with a water outlet hole that communicates with the bottom of the water collection pipe (713). The magnetocaloric effect temperature control component (720) includes a first permanent magnet (721), a second permanent magnet (722), a ferromagnetic ball (723), and a drive component. The first permanent magnet (721) is movably sleeved inside the first spiral tube (711), the second permanent magnet (722) is movably sleeved inside the second spiral tube (712), and the ferromagnetic ball (723) is rolled inside the first spiral tube (711) or the second spiral tube (712). The drive component is connected to the first permanent magnet (721) and the second permanent magnet (722).

3. The independent lake water source air conditioning system for temperature and humidity control according to claim 2, characterized in that, The ferromagnetic ball (723) is formed by three circular ferromagnetic plates (7231) connected perpendicularly to each other.

4. The independent lake water source air conditioning system for temperature and humidity control according to claim 2, characterized in that, The second spiral tube (712) is installed in the water tank (714), which is connected to the water pump (101) and the filter module (600).

5. A method for calibrating a humidity sensor fault, characterized in that, For humidity sensor fault correction in the independent lake water source air conditioning system according to any one of claims 1 to 4, the humidity sensor fault correction method includes the following steps: S1: Collect historical temperature, humidity, air flow, and heat exchanger working fluid mass flow data as input to the black box model. Based on the input parameters, use the black box model to train a model to predict the correction value of the humidity sensor. Based on the model, obtain the humidity prediction value of the faulty humidity sensor. S2: Represent the hyperparameters of the black-box model as a genetic algorithm "chromosome", where chromosome = [number of layers, number of first neurons, number of second neurons, learning rate, activation function]; S3: Use a genetic algorithm to optimize the hyperparameters of the black-box model neural network, generating an initial population of multiple neural network models, each with different hyperparameters; S4: Use MSE as the fitness function and perform fitness calculation and evaluation; S5: Select several individuals with fitness in the top 20%, perform genetic operations, cross over the selected chromosomes, and randomly modify the chromosome parameters of several offspring to induce mutations; S6: Repeat the fitness calculation, selection, crossover, and mutation process to obtain the optimal black box model after multiple generations of genetic operations; S7: Based on the real-time measured temperature, humidity value of the faulty humidity sensor, air flow rate, and heat exchanger working fluid mass flow rate data, input them into the black box model optimized by the genetic algorithm to obtain the humidity correction value of the humidity sensor. S8: Construct an objective function for the humidity correction value to obtain the true humidity correction value. Then initialize the population, encode individuals with real numbers, and randomly generate several sets of correction parameters. S9: Calculate the fitness of individuals, and select several individuals with fitness in the top 20% for crossover and mutation operations in the genetic algorithm. Repeat the fitness calculation, selection, crossover and mutation process, and output the optimal correction parameter solution. S10: Obtain the true humidity correction value of the faulty humidity sensor based on the correction parameter solution. The system uses the true humidity correction value to replace the original fault value of the sensor for environmental humidity control feedback.

6. The humidity sensor fault correction method according to claim 5, characterized in that, The historical temperature, humidity, air flow rate, and heat exchanger working fluid mass flow rate data mentioned in step S1 are collected through sensor measurement. The input parameter expression of the black box model is: in These are the input parameters for the black box model: temperature, humidity, air flow rate, and heat exchanger working fluid mass flow rate. The model formula for predicting the humidity sensor correction value is: in This is the predicted humidity value. This is a mapping function from input features (temperature, humidity, airflow, heat exchanger working fluid mass flow rate) to predicted humidity values.

7. The humidity sensor fault correction method according to claim 5, characterized in that: The step S2, which describes representing the hyperparameters of the black box model as a genetic algorithm "chromosome", specifically includes: representing the hyperparameters of the neural network as a "chromosome" according to the encoding method in the genetic algorithm steps. The "chromosome" is composed of a set of genes, each gene representing a hyperparameter. The activation function is ReLU, Sigmoid, or Tanh. The crossover of the selected chromosomes described in step S5 specifically involves generating a new model by exchanging model parameters.

8. The humidity sensor fault correction method according to claim 5, characterized in that: The fitness function mentioned in step S4 is: in, This is the actual humidity value. Here, n represents the predicted humidity value, and n is the number of samples. The fitness calculation is performed using the following function: in It is a constant value to prevent MSE from being zero, and the constant value is much smaller than MSE; The fitness function mentioned in step S9 is: The fitness calculation is performed using the following function: 。 9. The humidity sensor fault correction method according to claim 5, characterized in that, The objective function mentioned in step S8 is: in, This is the actual humidity correction value. Here is the humidity correction value, and k and b are the correction parameters.

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