Air conditioning system for underground space, control method thereof, and storage medium

Abstract

The present invention discloses an air conditioning system for an underground space, a control method thereof, and a storage medium. The method comprises: when a control instruction is monitored, a sub-interval to be controlled is determined according to an interval identifier carried by the control instruction; if the sub-interval to be controlled belongs to a common interval, human flow data, a temperature of a first sub-interval, and a carbon dioxide concentration are obtained, and the operation mode of a wind system and a water system in the sub-interval to be controlled is controlled; if the sub-interval to be controlled belongs to an equipment interval, the temperature of a second sub-interval and the heating change temperature of each heating device in the sub-interval to be controlled under the temperature of the second sub-interval are obtained, and the operation mode of the wind system and the water system in the sub-interval to be controlled is controlled. The present invention divides the common interval and the equipment interval into sub-intervals, and performs time-divided control according to factors that affect the temperature change of each sub-interval, thereby realizing precise control of the regional operation of the air conditioning system in the underground space, and saving energy while ensuring the comfort of the underground space environment.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning system for an underground space, control thereof, and a storage medium. Background Art

[0002] With the rapid development of the transportation industry, the subway has become the main means of transportation in the city, and more and more people choose to travel by subway. Most subway stations are located in underground spaces. In addition to the convenience of people taking the subway, the design of subway stations also needs to consider comfort. For this reason, an air-conditioning system is installed in the underground space where the subway station is located to provide a comfortable temperature for people when they enter the station and wait for the train, and to provide a suitable temperature for the equipment that supports the operation of the subway to ensure the normal operation of the equipment.

[0003] However, the temperature requirements for the waiting area at the subway station and the area where the equipment is located are different. In addition, the flow of people in the waiting area is dynamically changing, and the flow of people at different times is different, which makes the temperature requirements of the same waiting area at different times different. At present, the air-conditioning system in the underground space often runs at maximum load, which leads to a huge waste of energy. Therefore, how to accurately control the operation of the air-conditioning system in the underground space in different areas to save energy while ensuring the comfort of the underground space environment is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The main purpose of the present invention is to provide an air-conditioning system for an underground space, a control method thereof, and a storage medium, aiming to solve the technical problem of how to accurately control the regional operation of the air-conditioning system for the underground space so as to save energy while ensuring a comfortable underground space environment.

[0005] To achieve the above object, the present invention provides a method for controlling an air conditioning system in an underground space, wherein the air conditioning system includes a wind system and a water system, and the underground space includes a common area and an equipment area, wherein the common area and the equipment area are both divided into a plurality of sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area have different detection cycles; the control method includes:

[0006] When a control instruction triggered based on a detection cycle is monitored, a sub-interval to be controlled corresponding to the detection cycle is determined according to an interval identifier carried by the control instruction;

[0007] If the sub-interval to be regulated belongs to the common interval, obtaining the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration corresponding to the sub-interval to be regulated, and regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration;

[0008] If the sub-interval to be regulated belongs to the equipment interval, the second sub-interval temperature of the sub-interval to be regulated and the heating change temperature of each heating device in the sub-interval to be regulated under the second sub-interval temperature are obtained, and the operation mode of the wind system and the water system in the sub-interval to be regulated is regulated according to each heating change temperature and the second sub-interval temperature.

[0009] Preferably, the step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration includes:

[0010] Acquire the outdoor temperature and outdoor humidity outside the underground space, and determine the change temperature corresponding to the human flow data according to the outdoor temperature and the outdoor humidity;

[0011] Finding a first reference temperature corresponding to the sub-interval to be regulated, determining a first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature, and judging whether the carbon dioxide concentration is greater than a preset concentration threshold;

[0012] If it is greater than the preset concentration threshold, the operation mode of the air system in the sub-interval to be regulated is determined as the fresh air mode, and the opening size of the fresh air duct valve of the air system in the sub-interval to be regulated is determined according to the difference between the carbon dioxide concentration and the preset concentration threshold, and the air system is controlled to operate in the fresh air mode with the opening size in the sub-interval to be regulated;

[0013] Acquire the opening heat corresponding to the opening size, and determine whether the opening heat matches the first target temperature; if so, control the operation mode of the water system in the sub-interval to be regulated to remain unchanged; if not, determine the water operation mode of the water system in the sub-interval to be regulated according to the difference between the opening heat and the first target temperature, and control the water system to operate in the water operation mode in the sub-interval to be regulated;

[0014] If the carbon dioxide concentration is less than or equal to a preset concentration threshold, the wind system and the water system are respectively determined to be in the first operating mode and the second operating mode in the sub-interval to be regulated according to the outdoor temperature, the first target temperature, and the first sub-interval temperature, and the wind system is controlled to operate in the first operating mode in the sub-interval to be regulated, and the water system is controlled to operate in the second operating mode in the sub-interval to be regulated.

[0015] Preferably, the step of determining the first operating mode and the second operating mode of the wind system and the water system in the sub-interval to be regulated respectively according to the outdoor temperature, the first target temperature, and the first sub-interval temperature includes:

[0016] Based on the outdoor temperature and the first sub-interval temperature, determining whether the outdoor temperature matches the first target temperature, and if so, determining the first operating mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operating mode as keeping the original operating mode unchanged;

[0017] If the outdoor temperature does not match the first target temperature, determining whether the outdoor temperature matches the first sub-interval temperature; if the outdoor temperature matches the first sub-interval temperature, determining the first operation mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operation mode according to the difference between the outdoor temperature and the first target temperature;

[0018] If the outdoor temperature does not match the first sub-interval temperature, the first operating mode is determined as the return air mode, and the second operating mode is determined according to the first target temperature.

[0019] Preferably, the step of determining the first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature comprises:

[0020] Obtain the length of the water pipe corresponding to the water pipe between the sub-interval to be regulated and the chiller in the water system, the maintenance time of the water pipe, and the number of welding points between the water pipes;

[0021] The first target temperature is calculated according to the water pipe length, maintenance time, number of welding points, the first sub-interval temperature, the change temperature and the first reference temperature. The calculation formula is:

[0022]

[0023] Wherein, T represents the first target temperature, t0 represents the first sub-interval temperature, Δt represents the change temperature, tm represents the first reference temperature, ts1 represents the heat lost by unit mass of water in the water pipe per unit surface area, S represents the length of the water pipe, r represents the radius of the water pipe, C represents the specific heat of water, and m represents the mass of water flowing through the water pipe during the detection period. Used to calculate the temperature change caused by the water pipe during the detection period,

[0024] k1 represents the probability of scale formation in the water pipe during the maintenance time, ts2 represents the heat lost by unit mass of water in the scale per unit area, A represents the area where scale is formed, k2 represents the probability of scale formation with an area size of A, It is used to calculate the temperature change caused by the scale formed in the water pipe during the maintenance time. n represents the number of welding points, and ts3 represents the heat loss of unit mass of water at a single welding point. Used to calculate the temperature changes caused by the welding points of water pipes during the test period.

[0025] Preferably, the step of obtaining the human flow data corresponding to the sub-interval to be regulated, the temperature of the first sub-interval and the carbon dioxide concentration comprises:

[0026] The historical passenger flow data, historical road parameters and historical weather parameters of the historical detection period corresponding to the detection period are obtained, and the historical passenger flow data, historical road parameters and historical weather parameters of each of the historical detection periods are fitted to obtain a fitting surface, and the expression of the fitting surface is:

[0027]

[0028] Among them, Z represents the historical passenger flow data, μ1 and μ2 represent the fitting coefficients, X represents the historical road parameters, Y represents the historical weather parameters, s1 represents the number of historical passenger flow data corresponding to different historical weather parameters and the same historical road parameters, s2 represents the number of historical passenger flow data corresponding to the same historical weather parameters and different historical road parameters, and X represents the historical road parameters. i , X i 'represents the true value and fitted value of the i-th different historical weather parameters, Y j , Y j 'represent the true value and fitted value of the j-th different historical road parameters respectively;

[0029] Acquire the road parameters and weather parameters corresponding to the detection period, identify the positions of the road parameters and weather parameters in the fitting surface, and predict the pedestrian flow data according to the positions;

[0030] The outlet temperature and outlet carbon dioxide concentration detected at each outlet in the sub-interval to be regulated are searched, and the outlet temperatures are averaged to obtain the first sub-interval temperature, and the outlet carbon dioxide concentrations are averaged to obtain the carbon dioxide concentration.

[0031] Preferably, the step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to each of the heat change temperatures and the temperature of the second sub-interval comprises:

[0032] Generate each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated, and obtain a second reference temperature corresponding to each device in the sub-interval to be regulated;

[0033] Performing intersection processing on each of the second reference temperatures to obtain an intersection temperature range;

[0034] According to each of the intersection temperature intervals, the total heat change temperature, the temperature of the second sub-interval, and the outdoor temperature outside the underground space, the respective operating modes of the wind system and the water system in the sub-interval to be regulated are determined, and the wind system and the water system are controlled to operate in their respective operating modes in the sub-interval to be regulated.

[0035] Preferably, the step of generating each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated comprises:

[0036] Acquire the age parameter of each of the heating devices, and form the age parameter and heating change temperature of each of the heating devices into a data key-value pair, and form each of the data key-value pairs into an array;

[0037] The array is transmitted to a preset correction model, and each of the heating change temperatures is corrected based on the preset correction model to obtain the total heating change temperature of the sub-interval to be regulated, wherein the correction formula in the preset correction model is:

[0038]

[0039] Wherein, W represents the total heating change temperature, p represents the number of heating devices, f(bi) represents the coefficient prediction function in the preset correction model, which is used to predict the heating change coefficient of the i-th heating device after the service life reaches the service life represented by the service life parameter bi, and ti represents the heating change temperature in the i-th data key-value pair in the array.

[0040] Furthermore, to achieve the above-mentioned purpose, the present invention also provides an air conditioning system for an underground space, the air conditioning system includes a wind system and a water system, the underground space includes a common area and an equipment area, the common area and the equipment area are both divided into a plurality of sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area correspond to different detection cycles;

[0041] The air conditioning system further includes a server, the server includes a processor, and a memory connected to the processor in communication, and the memory stores a control program:

[0042] The processor is used to execute the control program to implement the air conditioning system control method for the underground space as described above.

[0043] Preferably, the air system comprises a fresh air device and a return air device, the fresh air duct connected to the fresh air device and the return air duct connected to the return air device both extend to each of the sub-intervals, and the fresh air duct and the return air duct are respectively provided with a fresh air duct valve and a return air duct valve corresponding to each of the sub-intervals;

[0044] The water system includes a chiller, a cold water pipe connected to the chiller extends to each of the sub-intervals, and the cold water pipe is provided with a cold water pipe valve corresponding to each of the sub-intervals.

[0045] Furthermore, to achieve the above-mentioned purpose, the present invention also provides a storage medium, on which a control program is stored, and when the control program is executed by a processor, the air conditioning system control method for the underground space as described above is implemented.

[0046] The present invention provides an air conditioning system for an underground space, a control method thereof, and a storage medium. The air conditioning system includes a wind system and a water system. The underground space includes a common area and an equipment area. Both the common area and the equipment area are further divided into a plurality of sub-areas. The sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area have different detection cycles. Once a control instruction triggered based on a detection cycle is received, the interval identifier carried in the control instruction is identified, and based on the identified interval identifier, the sub-interval to be regulated that triggers the control instruction due to the arrival of the detection cycle time is determined, and the ownership of the sub-interval to be regulated is identified; if it is identified that the sub-interval to be regulated belongs to the public interval, the pedestrian flow data, the first sub-interval temperature and the carbon dioxide concentration corresponding to the sub-interval to be regulated are obtained, and according to the pedestrian flow data, the first sub-interval temperature and the carbon dioxide concentration, the operation mode of the wind system and the water system in the air-conditioning system in the sub-interval to be regulated is regulated; if it is identified that the sub-interval to be regulated belongs to the equipment interval, the heating change temperature and the second sub-interval temperature of each heating device in the sub-interval to be regulated are obtained, and according to each heating change temperature and the second sub-interval temperature, the operation mode of the wind system and the water system in the air-conditioning system in the sub-interval to be regulated is regulated. In this way, by dividing the common area and equipment area into sub-areas and setting different detection cycles, while realizing regional control of the common area and equipment area, time-period control is also carried out according to the factors affecting the temperature changes of each sub-area, thereby realizing precise control of the regional operation of the underground space air-conditioning system, ensuring the comfort of the underground space environment while saving energy to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a flow chart of a first embodiment of a method for controlling an air conditioning system in an underground space according to the present invention;

[0048] Figure 2 It is a flow chart of a second embodiment of the method for controlling an air conditioning system in an underground space of the present invention;

[0049] Figure 3 It is a flow chart of a third embodiment of the method for controlling an air conditioning system in an underground space of the present invention;

[0050] Figure 4 It is a structural schematic diagram of the hardware operating environment involved in an embodiment of an air conditioning system for an underground space of the present invention.

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0053] The present invention provides a method for controlling an air-conditioning system in an underground space, wherein the air-conditioning system includes a wind system and a water system, and the underground space includes a common area and an equipment area, both the common area and the equipment area are divided into a plurality of sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area have different detection cycles.

[0054] Please refer to Figure 1 , Figure 1 The flowchart of the first embodiment of the method for controlling the air conditioning system of the underground space of the present invention is shown in the flowchart. It should be noted that, although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown here. Specifically, the control of the air conditioning system of the underground space in this embodiment includes:

[0055] Step S10: When a control instruction triggered based on a detection cycle is monitored, a sub-interval to be controlled corresponding to the detection cycle is determined according to an interval identifier carried by the control instruction.

[0056] The air conditioning system control method for underground space in this embodiment is applied to the server of the air conditioning system. The underground space is a space with a subway station built underground, and is divided into a public area for people to enter the station and wait for the train, and an equipment area for placing equipment supporting the operation of the subway station. In addition, the underground space is provided with an air conditioning system for improving its environment, and the air conditioning system includes a wind system for providing fresh air to the underground space or realizing air circulation in the underground space, and a water system for heating or cooling the air provided in the underground space.

[0057] Further, corresponding to the public area and the equipment area, the air system can be divided into a first subsystem corresponding to the public system and a second subsystem corresponding to the equipment area. Both the first subsystem and the second subsystem may include a fan, a return air device, an exhaust device, a fresh air device and related connecting pipes and control valves. In addition, the fresh air device may be set only in the first subsystem, and for the second subsystem, a fresh air duct may be set to connect with the fresh air device in the first subsystem to introduce fresh air into the second subsystem through the fresh air device and the fresh air duct. The water system may include a chiller, a cooling water pump, a cooling tower, a chilled water pump and related connecting pipes and control valves, and the number may be set to multiple groups. In addition, the air conditioning system also includes a thermometer for detecting temperature, a sensor for detecting carbon dioxide concentration, and the like. In addition, the server is connected to such thermometers, sensors, valves of the air system, valves of the water system, etc., so as to determine the operation mode of the air system and the water system according to the data detected by the thermometer and the sensor, and then control the opening of the valve according to the operation mode.

[0058] Furthermore, there are differences in the factors that affect the heat changes in the public area and the equipment area. For the public area, the flow of people is the main factor that causes the heat changes; while for the equipment area, the heat mainly comes from the operation of the equipment, and its heat is relatively stable. Based on this, different detection cycles are set for the public area and the equipment area according to their respective heat influencing factors. For example, for the public area, the detection cycle can be set according to the morning rush hour, the evening rush hour after get off work, and other non-peak hours. For the equipment area, the detection cycle is set according to the high and low outside temperature.

[0059] In addition, for the public section, different positions have different passenger flows, which causes heat differences in different positions. For example, the platforms in both directions of the subway line, or the platforms of different subway lines in the subway station. For the equipment section, different equipment is located in different areas, and the difference in heat generation of different equipment will cause heat differences in different areas. Therefore, in order to achieve more accurate control of each area in the public section and the equipment section, the public section and the equipment section are divided into multiple sub-sections, each sub-section can contain multiple air outlets, and the division rules between the public section and the equipment section can be the same or different, that is, the number and arrangement of the air outlets can be the same or different. For example, the three air outlet areas adjacent to the platform area on a straight line are set as sub-sections, or the nine air outlet areas arranged in a 9-square grid are divided into one sub-section, etc. In addition, in order to achieve accurate control of the wind system and the water system in each sub-section, in addition to being provided with pipes of the wind system and the water system, each air outlet of the sub-section is also provided with a control valve, or at least several of the air outlets are provided with a control valve.

[0060] Furthermore, for the detection period, in addition to being set differently according to the types of the wind system and the water system, each sub-interval within the wind system can also be set to have a different detection period, and each sub-interval within the water system can also be set to have a different detection period. For example, for sub-intervals A and B of the wind system, where the flow change period of sub-interval A is shorter than that of sub-interval B, a shorter detection period is set for interval A, and a longer detection period is set for sub-interval B. For sub-intervals C and D in the water system, where sub-interval C is more sensitive to changes in external temperature than sub-interval D, a shorter detection period is set for interval C, and a longer detection period is set for sub-interval D.

[0061] Furthermore, the server monitors the detection cycle of each sub-interval. When it is monitored that a certain sub-interval has reached its detection cycle, indicating that the operating mode of the wind system and subsystem in the sub-interval needs to be adjusted, the interval identifier of the sub-interval corresponding to the detection cycle is formed into a control instruction for triggering. After monitoring the control instruction triggered based on the detection cycle, the server identifies the interval identifier carried by the control instruction, and determines the sub-interval that needs to adjust the operating mode through the identification of the interval identifier. The determined sub-interval is the sub-interval to be regulated corresponding to the detection cycle. Among them, the interval identifier carried by the control instruction can indicate the ownership and location of the sub-interval that needs to be adjusted. For example, the public interval and the equipment interval are represented by different identifiers, such as f1 and f2. The sub-intervals divided by the public interval all carry the identifier of f1, and the sub-intervals divided by the equipment interval all carry the identifier of f2. Furthermore, the sub-intervals divided by the common interval include W1, W2, and W3, which are located at different positions and can be identified by identifiers p1, p2, and p3, respectively, so that the interval identifiers formed by the three include at least identifiers f1p1, f2p2, and f3p3, respectively. By identifying this type of interval identifier, the server can determine the location of the sub-interval to be regulated and the ownership of the sub-interval to be regulated.

[0062] Step S20: If the sub-interval to be regulated belongs to the common interval, the human flow data, the first sub-interval temperature and the carbon dioxide concentration corresponding to the sub-interval to be regulated are obtained, and the operation mode of the wind system and the water system in the sub-interval to be regulated is regulated according to the human flow data, the first sub-interval temperature and the carbon dioxide concentration.

[0063] Furthermore, if it is determined through identification that the sub-interval to be regulated belongs to a public interval, the flow data of people, the temperature of the first sub-interval, and the carbon dioxide concentration at the location of the sub-interval to be regulated are obtained. The flow data of people is mainly predicted based on the flow of people in the detection period on previous dates, and the temperature of the first sub-interval and the carbon dioxide concentration are detected based on the sensors set in the sub-interval to be regulated. Specifically, the step of obtaining the flow data of people, the temperature of the first sub-interval, and the carbon dioxide concentration corresponding to the sub-interval to be regulated includes:

[0064] Step S21, acquiring historical passenger flow data, historical road parameters, and historical weather parameters of historical detection periods corresponding to the detection period, and fitting the historical passenger flow data, historical road parameters, and historical weather parameters of each of the historical detection periods to obtain a fitting surface;

[0065] Step S22, obtaining the road parameters and weather parameters corresponding to the detection period, identifying the positions of the road parameters and weather parameters in the fitting surface, and predicting the pedestrian flow data according to the positions.

[0066] Step S23, searching for the outlet temperature and outlet carbon dioxide concentration detected at each outlet in the sub-interval to be regulated, and performing mean calculation on each outlet temperature to obtain the first sub-interval temperature, and performing mean calculation on each outlet carbon dioxide concentration to obtain the carbon dioxide concentration.

[0067] Furthermore, the actual flow of people in the current detection cycle in the past is obtained as historical flow of people data. The current detection cycle in the past is the historical detection cycle corresponding to the detection cycle. For example, if the current detection cycle is from 8:00 to 10:00 a.m., the actual flow of people monitored from 8:00 to 10:00 a.m. in the previous 30 or 60 days is obtained as historical flow of people data. At the same time, the road parameters and weather parameters of the historical detection cycle are also found as historical road parameters and historical weather parameters. Among them, the road parameters are mainly data on whether there is a restriction, and the weather parameters are mainly data on whether it is raining or foggy. Then, the historical flow of people data, historical road parameters and historical weather parameters of each historical detection cycle are formed into a parameter group, and a three-dimensional coordinate system is established, where the X-axis represents the historical road parameters, the Y-axis represents the historical weather parameters, and the Z-axis represents the historical flow of people data. Each parameter group is added to the three-dimensional coordinate system according to its own value, and then the parameter group is fitted according to the position of each parameter group in the three-dimensional coordinate system to obtain a fitting surface. The fitting surface can be specifically represented by the following formula (1).

[0068]

[0069] Among them, Z represents the historical passenger flow data, μ1 and μ2 represent the fitting coefficients, X represents the historical road parameters, Y represents the historical weather parameters, n represents the number of historical passenger flow data corresponding to different historical weather parameters and the same historical road parameters, m represents the number of historical passenger flow data corresponding to the same historical weather parameters and different historical road parameters, and X represents the historical road parameters. i , X i 'represents the true value and fitted value of the i-th different historical weather parameters, Y j , Y j 'represent the true value and fitted value of the j-th different historical road parameters respectively.

[0070] For parameter groups with different historical weather parameters but different historical road parameters, the error formed by the real value and fitting value of the historical weather parameters is corrected; and for parameter groups with the same historical weather parameters but different historical road parameters, the error formed by the real value and fitting value of the historical road parameters is corrected, so that the formed fitting surface can better reflect the impact of weather parameters and road parameters on pedestrian flow data.

[0071] Furthermore, the road parameters and weather parameters in the current detection period are obtained, and the positions of the road parameters and weather parameters in the fitting surface are found. The data on the Z axis corresponding to the position is the predicted pedestrian flow data.

[0072] Furthermore, for the temperature and carbon dioxide concentration of the first sub-interval, a plurality of sensors for detecting the temperature and carbon dioxide concentration are set in the sub-interval to be regulated. A temperature sensor and a concentration sensor may be set for each air outlet of the sub-interval to be regulated, or one may be set for each air outlet. The temperatures of each air outlet detected by each temperature sensor at the air outlet are searched, and the average value of each air outlet temperature is calculated to obtain the first sub-interval temperature representing the overall temperature of the sub-interval to be regulated. Also, the carbon dioxide concentration of each air outlet detected by each concentration sensor at the air outlet is searched, and the average value of each air outlet carbon dioxide concentration is calculated to obtain the carbon dioxide concentration representing the overall carbon dioxide content of the sub-interval to be regulated.

[0073] Understandably, the human flow data indicates the human flow size of the sub-interval to be regulated during the detection period. The greater the human flow, the greater the heat brought to the sub-interval to be regulated, which can be used to reflect the temperature required by the sub-interval to be regulated; the temperature of the first sub-interval indicates the actual temperature of the sub-interval to be regulated, and the relationship between the actual temperature and the required temperature reflected by the human flow data can be used to determine whether the temperature of the sub-interval to be regulated needs to be adjusted; the carbon dioxide concentration indicates the freshness of the air in the sub-interval to be regulated. The higher the carbon dioxide concentration, the lower the freshness, indicating that fresh air needs to be introduced into the sub-interval to be regulated. Therefore, after obtaining the human flow data, the temperature of the first sub-interval and the carbon dioxide concentration for the sub-interval to be regulated, the operation mode of the wind system and the water system in the sub-interval to be regulated can be regulated based on the human flow data, the temperature of the first sub-interval and the carbon dioxide concentration. While ensuring the comfortable environment of the sub-interval to be regulated, precise adjustment of the sub-interval is achieved, avoiding the problems of inaccurate regulation and energy waste caused by overall unified adjustment.

[0074] Step S30, if the sub-interval to be regulated belongs to the equipment interval, then obtain the second sub-interval temperature of the sub-interval to be regulated, and the heating change temperature of each heating device in the sub-interval to be regulated under the second sub-interval temperature, and according to each heating change temperature and the second sub-interval temperature, regulate the operation mode of the wind system and the water system in the sub-interval to be regulated.

[0075] Furthermore, if it is identified that the sub-interval to be regulated belongs to the equipment interval, the second sub-interval temperature of the sub-interval to be regulated is obtained. Among them, the second sub-interval temperature can be specifically obtained by detecting the temperature sensor set in the sub-interval to be regulated. And after obtaining the second sub-interval temperature of the sub-interval to be regulated, the heating change temperature of each heating device in the sub-interval to be regulated under the second sub-interval temperature can be obtained. The operation of the heating device will generate heat, and the heat generation is related to the ambient temperature. The higher the ambient temperature, the higher the heat generation. The relationship between the heat generation of each heating device and the ambient temperature is determined in advance through experiments. After obtaining the second sub-interval temperature, the heating change temperature corresponding to each heating device in the sub-interval to be regulated can be found based on the change relationship.

[0076] Furthermore, the heating change temperature of each heating device reflects the temperature change of each heating device caused by the change in heat generation under the temperature of the second sub-interval, and the temperature of the second sub-interval indicates the actual temperature of the sub-interval to be regulated. Each heating device has a suitable temperature suitable for its good operation. The temperature of the environment in which each heating device is located, which is comprehensively reflected by the heating change temperature and the second sub-interval temperature, and the matching between the suitable temperature, can be used to regulate the operation mode of the wind system and the water system in the sub-interval to be regulated, so that the operation mode is suitable for the good operation of each heating device. While ensuring the good operation of each heating device, precise adjustment of each region is achieved to avoid the problems of inaccurate regulation and energy waste caused by overall unified adjustment.

[0077] In the control method of the air conditioning system of the underground space implemented in this embodiment, the air conditioning system includes a wind system and a water system, and the underground space includes a public area and an equipment area. The public area and the equipment area are further divided into multiple sub-areas, and the sub-areas corresponding to the public area and the sub-areas corresponding to the equipment area have different detection cycles. Once the control instruction triggered by the detection cycle is received, the area identifier carried in the control instruction is identified, and according to the identified area identifier, the sub-area to be controlled that triggers the control instruction due to reaching the detection cycle time is determined, and the ownership of the sub-area to be controlled is identified; if the sub-area to be controlled belongs to the public area after identification, the flow of people data, the temperature of the first sub-area and the concentration of carbon dioxide corresponding to the sub-area to be controlled are obtained, and according to the flow of people data, the temperature of the first sub-area and the concentration of carbon dioxide, the operation mode of the wind system and the water system in the sub-area to be controlled in the air conditioning system is controlled; if the sub-area to be controlled belongs to the equipment area after identification, the heating change temperature and the temperature of the second sub-area of ​​each heating device in the sub-area to be controlled are obtained, and according to each heating change temperature and the temperature of the second sub-area, the operation mode of the wind system and the water system in the sub-area to be controlled in the air conditioning system is controlled. In this way, by dividing the common area and equipment area into sub-areas and setting different detection cycles, while realizing regional control of the common area and equipment area, time-period control is also carried out according to the factors affecting the temperature changes of each sub-area, thereby realizing precise control of the regional operation of the underground space air-conditioning system, ensuring the comfort of the underground space environment while saving energy to the greatest extent.

[0078] For further information, please refer to Figure 2 Based on the first embodiment of the air conditioning system control method for an underground space of the present invention, a second embodiment of the air conditioning system control method for an underground space of the present invention is proposed.

[0079] The difference between the second embodiment of the underground space air conditioning system control method and the first embodiment of the underground space air conditioning system control method is that the step of regulating the operation mode of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration includes:

[0080] Step S24, obtaining the outdoor temperature and outdoor humidity outside the underground space, and determining the change temperature corresponding to the human flow data according to the outdoor temperature and the outdoor humidity;

[0081] Step S25, searching for a first reference temperature corresponding to the sub-interval to be regulated, determining a first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature, and judging whether the carbon dioxide concentration is greater than a preset concentration threshold;

[0082] Understandably, the heat introduced by the flow of people data in the sub-interval to be regulated is related to the temperature and humidity of the outdoor environment. The higher the temperature and humidity of the outdoor environment, the higher the heat introduced, resulting in a correspondingly higher temperature rise in the sub-interval to be regulated. The correspondence between flow of people, temperature and humidity, introduced heat and temperature rise is preset, and the correspondence can be obtained in advance through a large amount of data simulation training. For the sub-interval to be regulated in the current detection cycle, the outdoor temperature and outdoor humidity outside the underground space are obtained, and then the obtained outdoor temperature and outdoor humidity are combined with the predicted flow of people data to find the corresponding heat and temperature rise from the corresponding relationship. The temperature rise found is the temperature change caused by the change in flow of people, which belongs to the change temperature corresponding to the flow of people data. Of course, the flow of people in the detection cycle may increase or decrease, so that the change temperature may increase or decrease.

[0083] Furthermore, for the sub-interval to be regulated, a first reference temperature representing the comfort of the environment is pre-set, and the same first reference temperature can be set for the sub-intervals belonging to the common interval. This type of first reference temperature is searched, and the first target temperature of the sub-interval to be regulated is determined in combination with the first sub-interval temperature indicating that the sub-interval to be regulated has a real-time temperature and the temperature change caused by the flow of people. The first target temperature reflects the temperature that needs to be regulated in the sub-interval to be regulated. If the temperature change caused by the change in the flow of people is a temperature drop, the temperature of the sub-interval to be regulated decreases on the basis of the temperature of the first sub-interval, and then the first target reference temperature that needs to be regulated is determined based on the difference between the temperature after the drop and the first reference temperature. If the temperature change caused by the change in the flow of people is a temperature increase, the temperature of the sub-interval to be regulated increases on the basis of the temperature of the first sub-interval, and then the first target temperature that needs to be regulated is determined based on the difference between the temperature after the increase and the first reference temperature.

[0084] Furthermore, the temperature control of the sub-interval to be regulated is achieved through the water system. The water pipe in the water system extends to the sub-interval to be regulated. If the temperature needs to be raised in winter, hot water is introduced into the water pipe, and the wind introduced into the sub-interval to be regulated by the wind system, or the wind circulated in the sub-interval to be regulated by the wind system is heat exchanged with the pipe into which the hot water is introduced, so as to achieve temperature rise. For summer when cooling is required, cold water is introduced into the water pipe, and the wind introduced into the sub-interval to be regulated by the wind system, or the wind circulated in the sub-interval to be regulated by the wind system is heat exchanged with the pipe into which the cold water is introduced, so as to achieve cooling. The specific level of heating and cooling is determined by the temperature of the hot water and the cold water introduced into the water pipe. In addition, whether it is hot water or cold water, heat loss is inevitable in the operation of the water pipe, and the longer the running distance, the greater the heat loss, which makes the temperature at which the hot water can diffuse lower and the temperature at which the cold water diffuses higher. At the same time, the presence of scale and welding points in the water pipe will also cause heat loss. Therefore, when determining the first target temperature that needs to be adjusted, this type of loss must also be considered to avoid the situation where the actual temperature increase or decrease fails to meet the first target temperature requirement due to the loss after the first target temperature is determined. Specifically, the step of determining the first target temperature of the sub-interval to be adjusted based on the first sub-interval temperature, the change temperature and the first reference temperature includes:

[0085] Step S251, obtaining the length of the water pipe corresponding to the water pipe between the sub-interval to be regulated and the chiller in the water system, the maintenance time of the water pipe, and the number of welding points between the water pipes;

[0086] Step S252, calculating the first target temperature according to the water pipe length, maintenance time, number of welding points, and the first sub-interval temperature, change temperature and first reference temperature.

[0087] Further, the water pipe of the chiller in the water system extends to the sub-interval to be regulated, and the air temperature of the sub-interval to be regulated is regulated. The extended water pipe is used as the water pipe corresponding to the sub-interval to be regulated and the chiller, and the water pipe length, the maintenance time of the water pipe, and the number of welding points between the water pipes are obtained. Among them, scale will inevitably be generated in the process of transporting water in the water pipe. The scale will not only block the water pipe and affect the flow of water, but also cause heat loss. Therefore, a descaling cycle is pre-set, and the water pipe is descaled every time the descaling cycle is set. The time of descaling in the most recent descaling cycle is obtained, and the time from the current time is determined as the maintenance time of the water pipe. The length of the maintenance time reflects the possibility of scale generation in the water pipe and the size of the scale area. The longer the time, the greater the possibility of scale generation and the larger the area, and vice versa. The probability of scale generation at each time, as well as the size of the scale area generated and the corresponding probability are pre-detected. For example, after testing, the probability of scale generation in the water pipe within time t is p1, and the scale with the most likely generated area size of A1 is p2.

[0088] Furthermore, the obtained water pipe length, maintenance time, number of welding points, the first sub-interval temperature, the change temperature and the first reference temperature are combined to calculate the first target temperature. Specifically, the heat loss of a unit mass of water in a unit surface area of ​​the water pipe, the heat loss of a unit mass of water in a unit area of ​​scale, and the heat loss of a unit mass of water at a single welding point can be determined in advance by detection, and then the first target temperature is calculated based on each heat loss, combined with the first sub-interval temperature, the change temperature and the first reference temperature. The specific calculation formula can be found in the following formula (2).

[0089]

[0090] Wherein, T represents the first target temperature, t0 represents the first sub-interval temperature, Δt represents the change temperature, tm represents the first reference temperature, ts1 represents the heat lost by unit mass of water in the water pipe per unit surface area, S represents the length of the water pipe, r represents the radius of the water pipe, C represents the specific heat of water, and m represents the mass of water flowing through the water pipe during the detection period. It is used to calculate the temperature change caused by the water pipe during the inspection period. k1 represents the probability of scale formation in the water pipe during the inspection time. ts2 represents the heat lost by unit mass of water in unit area of ​​scale. A represents the area where scale is formed. k2 represents the probability of scale formation with an area size of A. It is used to calculate the temperature change caused by the scale formed in the water pipe during the maintenance time. n represents the number of welding points, and ts3 represents the heat loss of unit mass of water at a single welding point. Used to calculate the temperature changes caused by the welding points of water pipes during the test period.

[0091] It should be noted that the temperature calculated by the first sub-interval temperature, the change temperature and the first reference temperature is actually the first target temperature without considering the heat loss. On this basis, by determining the heat loss caused by the heat loss of the water pipe, the heat loss caused by the scale generated by the maintenance time, and the heat loss caused by the welding point, and using this type of heat loss to correct the calculation of the first target temperature determined by the first sub-interval temperature, the change temperature and the first reference temperature, the determined first target temperature is more accurate, which is conducive to the sub-interval to be regulated to reach a more accurate and suitable temperature.

[0092] Furthermore, in addition to considering the impact of temperature on human comfort, it is also necessary to consider the impact of air freshness, which can be represented by carbon dioxide concentration. A preset concentration threshold that represents the air freshness requirement is set in advance, and the carbon dioxide concentration in the sub-interval to be regulated is compared with the preset concentration threshold to determine whether the carbon dioxide concentration is greater than the preset concentration threshold. If it is greater, it means that the carbon dioxide concentration in the sub-interval to be regulated is large, and the air freshness cannot meet the comfort requirements. Otherwise, it means that the air freshness in the sub-interval to be regulated can meet the comfort requirements. Then, the judgment result is combined with the first target temperature to regulate the operation mode of the wind system and subsystem in the sub-interval to be regulated to better meet the comfort requirements of the human body.

[0093] Step S26, if it is greater than the preset concentration threshold, the operation mode of the air system in the sub-interval to be regulated is determined as the fresh air mode, and the opening size of the fresh air duct valve of the air system in the sub-interval to be regulated is determined according to the difference between the carbon dioxide concentration and the preset concentration threshold, and the air system is controlled to operate in the fresh air mode with the opening size in the sub-interval to be regulated;

[0094] Step S27, obtaining the opening heat corresponding to the opening size, and determining whether the opening heat matches the first target temperature. If so, controlling the operation mode of the water system in the sub-interval to be regulated to remain unchanged; if not, determining the water operation mode of the water system in the sub-interval to be regulated according to the difference between the opening heat and the first target temperature, and controlling the water system to operate in the water operation mode in the sub-interval to be regulated;

[0095] Step S28, if the carbon dioxide concentration is less than or equal to the preset concentration threshold, determine that the wind system and the water system are in the first operating mode and the second operating mode in the sub-interval to be regulated, respectively, based on the outdoor temperature, the first target temperature, and the first sub-interval temperature, and control the wind system to operate in the first operating mode in the sub-interval to be regulated, and control the water system to operate in the second operating mode in the sub-interval to be regulated.

[0096] Further, if it is determined through comparison that the carbon dioxide concentration in the sub-interval to be regulated is greater than the preset concentration threshold, the carbon dioxide concentration in the sub-interval to be regulated is too high. At this time, the operation mode of the wind system in the sub-interval to be regulated is determined as the fresh air mode to introduce fresh air from the space outside the underground space. A fresh air device for introducing fresh air is provided in the wind system. The fresh air duct connected to the fresh air device extends to the sub-interval to be regulated, and a fresh air duct valve is provided on the duct to adjust the opening of the fresh air duct to adjust the air volume of the introduced fresh air. The opening is used as the opening size and is determined according to the difference between the carbon dioxide concentration and the preset concentration threshold. The larger the difference between the two, the larger the corresponding opening, and vice versa. The corresponding relationship between the opening and the concentration change is set in advance according to the detection cycle. For different detection cycles, the longer the detection cycle, the smaller the opening. For the same detection cycle, the larger the difference in concentration change, the larger the opening. For the current detection cycle, the opening size corresponding to the difference size is determined based on the corresponding relationship, and then the fresh air duct valve of the air system in the sub-interval to be regulated is controlled to operate in the fresh air mode of the opening size to introduce fresh air into the sub-interval to be regulated.

[0097] Understandably, the introduction of fresh air will inevitably cause a change in the heat of the sub-interval to be regulated, and the specific change depends on the opening heat corresponding to the opening size. According to the length of the detection cycle and the outdoor temperature, the amount of heat introduced by each opening is detected, and then a corresponding relationship is formed between the detection cycle, outdoor temperature, opening and heat. For the current detection cycle and outdoor temperature, as well as the determined opening size, the corresponding relationship that conforms to the detection cycle, outdoor temperature and opening size is found from the corresponding relationship, and the heat in the corresponding relationship found is used as the opening heat corresponding to the opening size. The found opening heat is then converted into temperature, which is the amount of temperature change caused by the introduction of fresh air.

[0098] Further, the converted temperature is compared with the first target temperature, and the comparison between the two is used to determine whether the opening heat matches the first target temperature. If it is determined through comparison that the converted temperature can meet the temperature change requirement of the first target temperature to be regulated, then the opening heat is determined to match the first target temperature, otherwise it does not match. For example, the first target temperature to be regulated indicates that the current temperature of the sub-interval to be regulated needs to be reduced by t degrees, and the temperature converted by the opening heat can reduce the temperature of the sub-interval to be regulated, and the amplitude of the decrease is greater than t degrees, then it means that the converted temperature can meet the temperature change requirement of the first target temperature, and thus it is determined that the opening heat matches the first target temperature. On the contrary, if it is determined that the temperature converted by the opening heat causes the temperature of the sub-interval to be regulated to rise, or even if it decreases, but the amplitude of the decrease is less than t degrees, then it means that the converted temperature cannot meet the change requirement of the first target temperature, and thus it is determined that the opening heat does not match the first target temperature.

[0099] Furthermore, for the results determined to be matched, it means that the fresh air introduced from the outside can meet the control demand of the first target temperature of the interval to be controlled, and there is no need to adjust the operation mode of the water system in the sub-interval to be controlled, so the operation mode of the water system in the sub-interval to be controlled remains unchanged. For the results determined to be unmatched, the temperature control demand of the sub-interval to be controlled cannot be met by simply introducing fresh air, and it is necessary to combine the water system for joint control. At this time, the difference between the opening heat and the first target temperature is determined, and based on the difference, the operation mode of the water system in the sub-interval to be controlled is determined, and the water system is controlled to operate in the sub-interval to be controlled in this operation mode. Among them, the water pipes extending from the water system to the sub-interval to be controlled can be set to include multiple pipes, and each water pipe is correspondingly provided with a valve. The determined operation mode includes at least the number of water pipe valves opened in the sub-interval to be controlled, and the opening degree of each valve. For example, for the opening heat with the above-mentioned drop temperature less than t degrees, the difference between the temperature converted by the opening heat and the first target temperature can be determined, and then based on the size of the difference, the number and opening degree of the water pipe valves opened in the sub-interval to be regulated in the water system can be determined, which can be specifically determined based on the corresponding relationship between the valve opening and the temperature in the water system detected in advance.

[0100] Furthermore, if it is determined through comparison that the carbon dioxide concentration in the sub-interval to be regulated is not greater than the preset concentration threshold, there is no need to introduce fresh air into the sub-interval to be regulated. At this time, in combination with the outdoor temperature, the first target temperature and the temperature of the first sub-interval, the first operating mode of the wind system in the sub-interval to be regulated and the second operating mode of the water system in the sub-interval to be regulated are determined, and the wind system and the water system are controlled to operate in the first operating mode and the second operating mode in the sub-interval to be regulated, respectively. Among them, the step of determining the first operating mode and the second operating mode of the wind system and the water system in the sub-interval to be regulated, respectively, according to the outdoor temperature, the first target temperature, and the temperature of the first sub-interval, includes:

[0101] Step S281, based on the outdoor temperature and the first sub-interval temperature, determining whether the outdoor temperature matches the first target temperature, if it matches the first target temperature, determining the first operation mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operation mode as keeping the original operation mode unchanged;

[0102] Step S282, if the outdoor temperature does not match the first target temperature, determining whether the outdoor temperature matches the first sub-interval temperature; if the outdoor temperature matches the first sub-interval temperature, determining the first operation mode as a fresh air mode in which the opening of the fresh air duct valve is fully open, and determining the second operation mode according to the difference between the outdoor temperature and the first target temperature;

[0103] Step S283: If the outdoor temperature does not match the first sub-interval temperature, the first operating mode is determined as the return air mode, and the second operating mode is determined according to the first target temperature.

[0104] Understandably, the outdoor temperature is the air temperature outside the underground space, the first sub-interval temperature is the current temperature of the sub-interval to be regulated, and the first target temperature is the temperature that needs to be regulated in the sub-interval to be regulated. Therefore, a temperature difference can be generated between the outdoor temperature and the temperature of the first sub-interval, and the outdoor temperature can be judged whether the first target temperature matches the outdoor temperature according to the size relationship between the temperature difference and the first target temperature. If the first target temperature is a temperature increase of t degrees, and the temperature difference is greater than t degrees, it means that the outdoor temperature is high, and the introduction of the sub-interval to be regulated can increase its temperature to greater than t degrees on the basis of the temperature of the first sub-interval, so it can be determined that the outdoor temperature matches the first target temperature. At this time, outdoor air can be introduced to adjust the temperature of the sub-interval to be regulated, and in order to quickly adjust the temperature, the valve opening of the fresh air duct valve can be set to fully open. Therefore, the first operating mode of the wind system in the sub-interval to be regulated is determined as a fresh air mode in which the opening of the fresh air duct valve is fully open, and the second operating mode of the water system in the sub-interval to be regulated does not need to be changed, that is, it is determined to keep the original operating mode unchanged.

[0105] Further, if it is determined whether the outdoor temperature matches the first target temperature, it means that the outdoor air is not enough to adjust the temperature of the sub-interval to be regulated, but the outdoor air may be partially adjusted, and the other part needs to be combined with the water system for temperature adjustment. At this time, in order to save energy consumption, the matching of the outdoor air and the temperature of the first sub-interval is judged. Among them, the matching varies according to the cooling demand and the heating demand of the sub-interval to be regulated. For the cooling demand, it is determined whether the outdoor temperature is less than the temperature of the first sub-interval to determine the matching of the two. For the heating demand, it is determined whether the outdoor temperature is greater than the temperature of the first sub-interval to determine the matching of the two. In this embodiment, the cooling demand is taken as an example. If it is determined that the outdoor temperature is less than the temperature of the first sub-interval, it means that the outdoor space can be used to reduce the temperature of some sub-intervals to be regulated, but the degree of cooling cannot reach the required first target temperature. At this time, it is determined that the outdoor temperature matches the temperature of the first sub-interval, so as to introduce outdoor air to adjust the temperature of the sub-interval to be regulated. In addition, the opening of the fresh air duct valve used to introduce outdoor air is fully opened, and the first operating mode is determined as the fresh air mode in which the opening of the fresh air duct valve is fully opened. In addition, considering that the introduced fresh air cannot fully meet the temperature regulation requirements of the sub-interval to be regulated, it is necessary to combine the water system for regulation. Specifically, the second operation mode can be determined according to the difference between the outdoor temperature and the first target temperature. The determined second operation mode at least includes determining the number of water pipes to be opened and the opening size, and controlling the operation in the second operation mode to combine the outdoor air and the water system to perform temperature regulation on the sub-interval to be regulated.

[0106] Furthermore, if it is determined that the outdoor temperature does not match the temperature of the first sub-interval, when cooling is required, the outdoor temperature is greater than the temperature of the first sub-interval, and when heating is required, the outdoor temperature is less than the temperature of the first sub-interval, and the temperature of the sub-interval to be regulated cannot be adjusted by outdoor air. At this time, the first operating mode of the wind system in the sub-interval to be regulated is determined as the return air mode. The return air mode is a mode in which the original air in the sub-interval to be regulated is driven by the wind system to circulate and flow, so that the temperature is controlled by the water system. At the same time, in order to achieve the first target temperature for the temperature of the sub-interval to be regulated, it is necessary to determine the second operating mode of the water system in the sub-interval to be regulated based on the first target temperature. The determined second operating mode at least includes determining the number of water pipes to be opened and the size of the opening, and controlling the operation in the second operating mode to perform problem regulation on the sub-interval to be regulated based on the water system.

[0107] This embodiment aims at the temperature change caused by the flow of people, and combines the factors affecting the temperature of the water pipes in the water system to make corrections, so that the first target temperature of the sub-interval to be regulated is more accurate. At the same time, the operation mode of the wind system and the water system in the sub-interval to be regulated is determined by comprehensively considering whether fresh air needs to be introduced, the temperature impact of the introduced fresh air, and other factors. When outdoor air can be used to control the temperature of the sub-interval to be regulated, the operation mode of the wind system in the sub-interval to be regulated is preferentially set to the fresh air mode, which ensures the environmental comfort of the sub-interval to be regulated while avoiding energy waste.

[0108] For further information, please refer to Figure 3 Based on the first or second embodiment of the air conditioning system control method for an underground space of the present invention, a third embodiment of the air conditioning system control method for an underground space of the present invention is proposed.

[0109] The third embodiment of the method for controlling an air conditioning system in an underground space is different from the first or second embodiment of the method for controlling an air conditioning system in an underground space in that the step of regulating the operation mode of the air system and the water system in the sub-interval to be regulated according to each of the heat change temperatures and the temperature of the second sub-interval comprises:

[0110] Step S31, generating each of the heating change temperatures as a total heating change temperature of the sub-interval to be regulated, and obtaining a second reference temperature corresponding to each device in the sub-interval to be regulated;

[0111] Furthermore, for the sub-interval to be regulated belonging to the device interval, after obtaining the heating change temperature of each heating device therein, each heating change temperature is generated as a total heating change temperature representing the overall heating change of the sub-interval to be regulated. At the same time, the second reference temperature corresponding to each device in the sub-interval to be regulated is obtained. The second reference temperature of each device reflects the appropriate temperature required by each device in the sub-interval to be regulated, and usually exists in the form of a temperature interval. In addition, the devices in the sub-interval to be regulated include both heating devices and devices that do not generate heat but have temperature requirements.

[0112] The step of generating each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated comprises:

[0113] Step S311, obtaining age parameters of each of the heating devices, and forming the age parameters and heating change temperature of each of the heating devices into data key-value pairs, and forming each of the data key-value pairs into an array;

[0114] Step S312: transmitting the array to a preset correction model, and correcting each of the heating change temperatures based on the preset correction model to obtain a total heating change temperature of the sub-interval to be regulated.

[0115] Understandably, the heat dissipation of heating devices varies with the age of use. Generally speaking, the longer the service life, the worse the corresponding heat dissipation performance may be, resulting in more accumulated heat. However, the heating change temperature obtained for the heating device does not take into account the impact of the service life on the heat dissipation performance and the accumulated heat. Therefore, in order to more accurately reflect the total heating change temperature of the sub-interval to be regulated, the total heating change temperature needs to be corrected in combination with the service life of each heating device.

[0116] Specifically, the age parameter of each heating device is obtained, and the age parameter indicates the service life of the heating device. Then, the age parameter of each heating device and the heating change temperature are jointly formed into a data key-value pair, and the data key-value pair is a data pair formed by a key and a value, one data is used as the key, and the other data is used as the value, and the value is quickly queried through the key. In this embodiment, the heating device can be set as the key, and the age parameter and the heating change temperature are set as the value to quickly determine the age parameter and heating change temperature of each heating device. After each heating device forms its own data key-value pair, each data key-value pair is formed into an array, and the arrangement order of each data key-value pair in the array is not limited.

[0117] Furthermore, a preset correction model is formed in advance through training, and the preset correction model includes a coefficient prediction function, which can predict the heating change coefficient of different heating devices with different service life. The heating change coefficient represents the heat accumulation caused by the deterioration of heat dissipation performance of the heating device after use. The longer the service life, the larger the heating change coefficient, and the value is greater than 1. The formed array is transmitted to the preset correction model, and the correction formula therein is combined with the coefficient prediction function to correct and accumulate each heating change temperature to obtain the total heating change temperature of the sub-interval to be regulated. The specific correction formula can be found in the following formula (3).

[0118]

[0119] Wherein, W represents the total heating change temperature, p represents the number of heating devices, f(bi) represents the coefficient prediction function in the preset correction model, which is used to predict the heating change coefficient of the i-th heating device after the service life reaches the service life represented by the service life parameter bi, and ti represents the heating change temperature in the i-th data key-value pair in the array.

[0120] Step S32, performing intersection processing on each of the second reference temperatures to obtain an intersection temperature range;

[0121] Step S33, according to each of the intersection temperature intervals, the total heat change temperature, the temperature of the second sub-interval, and the outdoor temperature outside the underground space, determine the respective operating modes of the wind system and the water system in the sub-interval to be regulated, and control the wind system and the water system to operate in their respective operating modes in the sub-interval to be regulated.

[0122] Furthermore, the intersection processing is performed between each second reference temperature, and the intersection result obtained is the intersection temperature interval that meets the requirements of all equipment in the sub-interval to be regulated. In addition, the second sub-interval temperature is the current temperature value of the sub-interval to be regulated, and the total heat change temperature obtained after correction reflects the temperature change value that may occur in the sub-interval to be regulated at the current second sub-interval temperature. Therefore, in order to make the temperature of the sub-interval to be regulated reach the temperature that meets the requirements of each device therein, the formed intersection temperature interval needs to be combined with the total heat change temperature, the second sub-interval temperature, and the outdoor temperature outside the underground space to determine the respective operating modes of the wind system and the water system in the sub-interval to be regulated, and control the wind system and the water system to operate in their respective operating modes in the sub-interval to be regulated.

[0123] Specifically, the temperature of the second sub-interval is added to the total heating change temperature to obtain the temperature increase of the sub-interval to be regulated in the current detection cycle, and then the increased temperature is compared with the intersection temperature interval obtained by the intersection processing to determine whether the increased temperature belongs to the temperature value within the intersection temperature interval. If it belongs to the temperature value within the temperature interval, it means that the heating of the heating equipment in the sub-interval to be regulated has no effect on the equipment in the sub-interval to be regulated, and the operation mode of the wind system and the water system in the sub-interval to be regulated does not need to be adjusted, that is, they operate in the original operation mode.

[0124] Furthermore, if it is determined that the increased temperature is higher than the upper boundary value of the intersection temperature interval, it means that the sub-interval to be regulated needs to be cooled. At this time, the increased temperature is compared with the outdoor temperature to determine whether the outdoor temperature is lower than the increased temperature. If it is lower, it means that outdoor air can be introduced to cool the sub-interval to be regulated, so that the operation mode of the wind system is determined to be the fresh air mode. In addition, the temperature difference between the outdoor temperature and the increased temperature is determined to determine whether the temperature difference is greater than the preset threshold. If it is greater than the preset threshold, it means that the difference between the two is large, and the outdoor air is sufficient to cool the sub-interval to be regulated, so the operation mode of the water system in the sub-interval to be regulated is determined to keep the original operation mode unchanged. If the temperature difference is less than the preset threshold, it means that the outdoor air is not enough to completely cool the sub-interval to be regulated. At this time, the opening of the water pipe valve of the water system in the sub-interval to be regulated is determined according to the difference between the outdoor temperature and the upper boundary value of the intersection temperature interval, and the operation mode of the opening is used as the operation mode of the water system in the sub-interval to be regulated. If it is determined through comparison that the outdoor temperature is greater than the elevated temperature, the outdoor air cannot be used at all for cooling the sub-interval to be regulated. At this time, the operation mode of the wind system is determined to be the return air mode, and the opening of the water pipe valve of the water system in the sub-interval to be regulated is determined based on the difference between the elevated temperature and the upper boundary value of the intersection temperature interval, and the operation mode with this opening is used as the operation mode of the water system in the sub-interval to be regulated.

[0125] Further, if it is determined that the increased temperature is lower than the lower boundary value of the intersection temperature interval, it means that the sub-interval to be regulated needs to be heated. At this time, the increased temperature is compared with the outdoor temperature to determine whether the outdoor temperature is greater than the increased temperature. If it is greater, it means that outdoor air can be introduced to heat the sub-interval to be regulated, so that the operation mode of the wind system is determined to be the fresh air mode. In addition, the temperature difference between the outdoor temperature and the increased temperature is determined to determine whether the temperature difference is greater than the preset threshold. If it is greater than the preset threshold, it means that the difference between the two is large, and the outdoor air is sufficient to heat the sub-interval to be regulated, so the operation mode of the water system in the sub-interval to be regulated is determined to keep the original operation mode unchanged. If the temperature difference is less than the preset threshold, it means that the outdoor air is not enough to completely heat the sub-interval to be regulated. At this time, the opening of the water pipe valve of the water system in the sub-interval to be regulated is determined according to the difference between the outdoor temperature and the lower boundary value of the intersection temperature interval, and the operation mode of the opening is used as the operation mode of the water system in the sub-interval to be regulated. If it is determined through comparison that the outdoor temperature is lower than the increased temperature, the outdoor air cannot be used at all to heat the sub-interval to be regulated. At this time, the operation mode of the wind system is determined to be the return air mode, and the opening of the water pipe valve of the water system in the sub-interval to be regulated is determined based on the difference between the increased temperature and the lower boundary value of the intersection temperature interval, and the operation mode with this opening is used as the operation mode of the water system in the sub-interval to be regulated.

[0126] This embodiment corrects the total heating change temperature for the sub-interval to be regulated belonging to the equipment interval, combined with the influence of the heating of the heating equipment on the temperature, so that the determined total heating change temperature is more accurate. Then, for the operation mode of the wind system and the water system in the sub-interval to be regulated, the total heating change temperature, the temperature of the second sub-interval, and the outdoor temperature are determined. When the outdoor air can be used to control the temperature of the sub-interval to be regulated, the operation mode of the wind system in the sub-interval to be regulated is preferentially set to the fresh air mode, which ensures that the environment of the sub-interval to be regulated is suitable for the operation of the equipment while avoiding energy waste.

[0127] In addition, an embodiment of the present invention also provides an air conditioning system for an underground space. The air conditioning system includes a wind system and a water system, and the underground space includes a common area and an equipment area, and the common area and the equipment area are both divided into multiple sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area correspond to different detection cycles;

[0128] At the same time, the air system includes a fresh air device and a return air device. The fresh air duct connected to the fresh air device and the return air duct connected to the return air device are extended to each sub-interval, and the fresh air duct and the return air duct are respectively provided with a fresh air duct valve and a return air duct valve corresponding to each sub-interval, so as to introduce fresh air into each sub-interval, or circulate the return air of each sub-interval, and perform corresponding flow control. The water system includes a chiller. The cold water duct connected to the chiller also extends to each sub-interval, and the cold water duct is provided with a cold water duct valve corresponding to each sub-interval, so as to introduce water into each sub-interval to cool or heat the air in each sub-interval, and control the flow of the introduced water at the same time.

[0129] In addition, the air conditioning system also includes servers, please refer to Figure 4 , Figure 4 It is a structural schematic diagram of a server hardware operating environment involved in an embodiment of an air conditioning system for an underground space of the present invention.

[0130] like Figure 4As shown, the server may include: a processor 1001, such as a CPU, a user interface 1003, a network interface 1004, and a storage 1005. Among them, the communication bus 1002 is used not only for the communication connection between the server and the ground service system, but also for realizing the connection and communication between these components. The user interface 1003 may optionally include a standard wired interface, a wireless interface, etc. The network interface 1004 may optionally include a standard wired interface, a wireless interface (such as a WI-FI interface). The storage 1005 may be a high-speed RAM storage, or a stable storage (non-volatile memory), such as a disk storage. The storage 1005 may also be a storage device independent of the aforementioned processor 1001.

[0131] Those skilled in the art will understand that Figure 4 The hardware structure of the server shown in the figure does not constitute a limitation on the air-conditioning system of the underground space. The air-conditioning system of the underground space may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

[0132] like Figure 4 As shown, the storage 1005 as a storage medium may include an operating system, a network communication module, a user interface module and a metering program. The operating system is a program for managing and controlling the air conditioning system and software resources of the underground space, and supports the operation of the network communication module, the user interface module, the metering program and other programs or software; the network communication module is used to manage and control the network interface 1004; the user interface module is used to manage and control the user interface 1003.

[0133] exist Figure 4 In the server hardware structure shown, the network interface 1004 is mainly used to connect to the network to achieve data communication; the user interface 1003 is mainly used to connect to the client (user end) and perform data communication with the client; the processor 1001 can call the metering program stored in the storage 1005 and perform the following operations:

[0134] When a control instruction triggered based on a detection cycle is monitored, a sub-interval to be controlled corresponding to the detection cycle is determined according to an interval identifier carried by the control instruction;

[0135] If the sub-interval to be regulated belongs to the common interval, obtaining the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration corresponding to the sub-interval to be regulated, and regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration;

[0136] If the sub-interval to be regulated belongs to the equipment interval, the second sub-interval temperature of the sub-interval to be regulated and the heating change temperature of each heating device in the sub-interval to be regulated under the second sub-interval temperature are obtained, and the operation mode of the wind system and the water system in the sub-interval to be regulated is regulated according to each heating change temperature and the second sub-interval temperature.

[0137] Furthermore, the step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration includes:

[0138] Acquire the outdoor temperature and outdoor humidity outside the underground space, and determine the change temperature corresponding to the human flow data according to the outdoor temperature and the outdoor humidity;

[0139] Finding a first reference temperature corresponding to the sub-interval to be regulated, determining a first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature, and judging whether the carbon dioxide concentration is greater than a preset concentration threshold;

[0140] If it is greater than the preset concentration threshold, the operation mode of the air system in the sub-interval to be regulated is determined as the fresh air mode, and the opening size of the fresh air duct valve of the air system in the sub-interval to be regulated is determined according to the difference between the carbon dioxide concentration and the preset concentration threshold, and the air system is controlled to operate in the fresh air mode with the opening size in the sub-interval to be regulated;

[0141] Acquire the opening heat corresponding to the opening size, and determine whether the opening heat matches the first target temperature; if so, control the operation mode of the water system in the sub-interval to be regulated to remain unchanged; if not, determine the water operation mode of the water system in the sub-interval to be regulated according to the difference between the opening heat and the first target temperature, and control the water system to operate in the water operation mode in the sub-interval to be regulated;

[0142] If the carbon dioxide concentration is less than or equal to a preset concentration threshold, the wind system and the water system are respectively determined to be in the first operating mode and the second operating mode in the sub-interval to be regulated according to the outdoor temperature, the first target temperature, and the first sub-interval temperature, and the wind system is controlled to operate in the first operating mode in the sub-interval to be regulated, and the water system is controlled to operate in the second operating mode in the sub-interval to be regulated.

[0143] Further, the step of determining the first operating mode and the second operating mode of the wind system and the water system in the sub-interval to be regulated respectively according to the outdoor temperature, the first target temperature, and the first sub-interval temperature includes:

[0144] Based on the outdoor temperature and the first sub-interval temperature, determining whether the outdoor temperature matches the first target temperature, and if so, determining the first operating mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operating mode as keeping the original operating mode unchanged;

[0145] If the outdoor temperature does not match the first target temperature, determining whether the outdoor temperature matches the first sub-interval temperature; if the outdoor temperature matches the first sub-interval temperature, determining the first operation mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operation mode according to the difference between the outdoor temperature and the first target temperature;

[0146] If the outdoor temperature does not match the first sub-interval temperature, the first operating mode is determined as the return air mode, and the second operating mode is determined according to the first target temperature.

[0147] Further, the step of determining the first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature includes:

[0148] Obtain the length of the water pipe corresponding to the water pipe between the sub-interval to be regulated and the chiller in the water system, the maintenance time of the water pipe, and the number of welding points between the water pipes;

[0149] The first target temperature is calculated according to the water pipe length, maintenance time, number of welding points, the first sub-interval temperature, the change temperature and the first reference temperature. The calculation formula is:

[0150]

[0151] Wherein, T represents the first target temperature, t0 represents the first sub-interval temperature, Δt represents the change temperature, tm represents the first reference temperature, ts1 represents the heat lost by unit mass of water in the water pipe per unit surface area, S represents the length of the water pipe, r represents the radius of the water pipe, C represents the specific heat of water, and m represents the mass of water flowing through the water pipe during the detection period. It is used to calculate the temperature change caused by the water pipe during the inspection period. k1 represents the probability of scale formation in the water pipe during the inspection time. ts2 represents the heat lost by unit mass of water in unit area of ​​scale. A represents the area where scale is formed. k2 represents the probability of scale formation with an area size of A. It is used to calculate the temperature change caused by the scale formed in the water pipe during the maintenance time. n represents the number of welding points, and ts3 represents the heat loss of unit mass of water at a single welding point. Used to calculate the temperature changes caused by the welding points of water pipes during the test period.

[0152] Furthermore, the step of obtaining the human flow data corresponding to the sub-interval to be regulated, the temperature of the first sub-interval and the carbon dioxide concentration includes:

[0153] The historical passenger flow data, historical road parameters and historical weather parameters of the historical detection period corresponding to the detection period are obtained, and the historical passenger flow data, historical road parameters and historical weather parameters of each of the historical detection periods are fitted to obtain a fitting surface, and the expression of the fitting surface is:

[0154]

[0155] Among them, Z represents the historical passenger flow data, μ1 and μ2 represent the fitting coefficients, X represents the historical road parameters, Y represents the historical weather parameters, s1 represents the number of historical passenger flow data corresponding to different historical weather parameters and the same historical road parameters, s2 represents the number of historical passenger flow data corresponding to the same historical weather parameters and different historical road parameters, and X represents the historical road parameters. i , X i 'represents the true value and fitted value of the i-th different historical weather parameters, Y j , Y j 'represent the true value and fitted value of the j-th different historical road parameters respectively;

[0156] Acquire the road parameters and weather parameters corresponding to the detection period, identify the positions of the road parameters and weather parameters in the fitting surface, and predict the pedestrian flow data according to the positions;

[0157] The outlet temperature and outlet carbon dioxide concentration detected at each outlet in the sub-interval to be regulated are searched, and the outlet temperatures are averaged to obtain the first sub-interval temperature, and the outlet carbon dioxide concentrations are averaged to obtain the carbon dioxide concentration.

[0158] Furthermore, the step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to each of the heat change temperatures and the temperature of the second sub-interval includes:

[0159] Generate each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated, and obtain a second reference temperature corresponding to each device in the sub-interval to be regulated;

[0160] Performing intersection processing on each of the second reference temperatures to obtain an intersection temperature range;

[0161] According to each of the intersection temperature intervals, the total heat change temperature, the temperature of the second sub-interval, and the outdoor temperature outside the underground space, the respective operating modes of the wind system and the water system in the sub-interval to be regulated are determined, and the wind system and the water system are controlled to operate in their respective operating modes in the sub-interval to be regulated.

[0162] Furthermore, the step of generating each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated includes:

[0163] Acquire the age parameter of each of the heating devices, and form the age parameter and heating change temperature of each of the heating devices into a data key-value pair, and form each of the data key-value pairs into an array;

[0164] The array is transmitted to a preset correction model, and each of the heating change temperatures is corrected based on the preset correction model to obtain the total heating change temperature of the sub-interval to be regulated, wherein the correction formula in the preset correction model is:

[0165]

[0166] Wherein, W represents the total heating change temperature, p represents the number of heating devices, f(bi) represents the coefficient prediction function in the preset correction model, which is used to predict the heating change coefficient of the i-th heating device after the service life reaches the service life represented by the service life parameter bi, and ti represents the heating change temperature in the i-th data key-value pair in the array.

[0167] The specific implementation of the air conditioning system for an underground space of the present invention is basically the same as the various embodiments of the control method for the air conditioning system for an underground space described above, and will not be described in detail herein.

[0168] The embodiment of the present invention further provides a storage medium having a metering program stored thereon, and when the metering program is executed by a processor, the steps of the above-mentioned method for controlling an air conditioning system in an underground space are implemented.

[0169] The storage medium of the present invention may be a computer-readable storage medium, and its implementation method is substantially the same as the above-mentioned embodiments of the air conditioning system control method for the underground space, and will not be described in detail here.

[0170] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims. All equivalent structures or equivalent process changes made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, are protected by the present invention.

Claims

1. A method for controlling an air conditioning system in an underground space, characterized in that: The air conditioning system includes a wind system and a water system, the underground space includes a common area and an equipment area, the common area and the equipment area are both divided into a plurality of sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area have different detection cycles; the control method includes: When a control instruction triggered based on a detection cycle is monitored, a sub-interval to be controlled corresponding to the detection cycle is determined according to an interval identifier carried by the control instruction; If the sub-interval to be regulated belongs to the common interval, obtaining the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration corresponding to the sub-interval to be regulated, and regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration; If the sub-interval to be regulated belongs to the equipment interval, the second sub-interval temperature of the sub-interval to be regulated and the heating change temperature of each heating device in the sub-interval to be regulated under the second sub-interval temperature are obtained, and the operation mode of the air system and the water system in the sub-interval to be regulated is regulated according to each heating change temperature and the second sub-interval temperature; The step of obtaining the human flow data, the temperature of the first sub-interval and the carbon dioxide concentration corresponding to the sub-interval to be regulated includes: The historical passenger flow data, historical road parameters and historical weather parameters of the historical detection period corresponding to the detection period are obtained, and the historical passenger flow data, historical road parameters and historical weather parameters of each of the historical detection periods are fitted to obtain a fitting surface, and the expression of the fitting surface is: Among them, Z represents the historical passenger flow data, μ1 and μ2 represent the fitting coefficients, X represents the historical road parameters, Y represents the historical weather parameters, s1 represents the number of historical passenger flow data corresponding to different historical weather parameters and the same historical road parameters, s2 represents the number of historical passenger flow data corresponding to the same historical weather parameters and different historical road parameters, and X represents the historical road parameters. i , X i 'represents the true value and fitted value of the i-th different historical weather parameters, Y j , Y j ′ respectively represent the true value and fitting value of the j-th different historical road parameters; Acquire the road parameters and weather parameters corresponding to the detection period, identify the positions of the road parameters and weather parameters in the fitting surface, and predict the pedestrian flow data according to the positions; The outlet temperature and outlet carbon dioxide concentration detected at each outlet in the sub-interval to be regulated are searched, and the outlet temperatures are averaged to obtain the first sub-interval temperature, and the outlet carbon dioxide concentrations are averaged to obtain the carbon dioxide concentration.

2. The air conditioning system control method according to claim 1, characterized in that: The step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to the human flow data, the temperature of the first sub-interval, and the carbon dioxide concentration comprises: Acquire the outdoor temperature and outdoor humidity outside the underground space, and determine the change temperature corresponding to the human flow data according to the outdoor temperature and the outdoor humidity; Finding a first reference temperature corresponding to the sub-interval to be regulated, determining a first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature, and judging whether the carbon dioxide concentration is greater than a preset concentration threshold; If it is greater than the preset concentration threshold, the operation mode of the air system in the sub-interval to be regulated is determined as the fresh air mode, and the opening size of the fresh air duct valve of the air system in the sub-interval to be regulated is determined according to the difference between the carbon dioxide concentration and the preset concentration threshold, and the air system is controlled to operate in the fresh air mode with the opening size in the sub-interval to be regulated; Acquire the opening heat corresponding to the opening size, and determine whether the opening heat matches the first target temperature; if so, control the operation mode of the water system in the sub-interval to be regulated to remain unchanged; if not, determine the water operation mode of the water system in the sub-interval to be regulated according to the difference between the opening heat and the first target temperature, and control the water system to operate in the water operation mode in the sub-interval to be regulated; If the carbon dioxide concentration is less than or equal to a preset concentration threshold, the wind system and the water system are respectively determined to be in the first operating mode and the second operating mode in the sub-interval to be regulated according to the outdoor temperature, the first target temperature, and the first sub-interval temperature, and the wind system is controlled to operate in the first operating mode in the sub-interval to be regulated, and the water system is controlled to operate in the second operating mode in the sub-interval to be regulated.

3. The air conditioning system control method according to claim 2, characterized in that: The step of determining the first operating mode and the second operating mode of the wind system and the water system in the sub-interval to be regulated respectively according to the outdoor temperature, the first target temperature, and the first sub-interval temperature comprises: Based on the outdoor temperature and the first sub-interval temperature, determining whether the outdoor temperature matches the first target temperature, and if so, determining the first operating mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operating mode as keeping the original operating mode unchanged; If the outdoor temperature does not match the first target temperature, determining whether the outdoor temperature matches the first sub-interval temperature; if the outdoor temperature matches the first sub-interval temperature, determining the first operation mode as a fresh air mode in which the opening of the fresh air duct valve is fully opened, and determining the second operation mode according to the difference between the outdoor temperature and the first target temperature; If the outdoor temperature does not match the first sub-interval temperature, the first operating mode is determined as the return air mode, and the second operating mode is determined according to the first target temperature.

4. The air conditioning system control method according to claim 2, characterized in that: The step of determining the first target temperature of the sub-interval to be regulated according to the first sub-interval temperature, the change temperature and the first reference temperature comprises: Obtain the length of the water pipe corresponding to the water pipe between the sub-interval to be regulated and the chiller in the water system, the maintenance time of the water pipe, and the number of welding points between the water pipes; The first target temperature is calculated according to the water pipe length, maintenance time, number of welding points, the first sub-interval temperature, the change temperature and the first reference temperature. The calculation formula is: Wherein, T represents the first target temperature, t0 represents the first sub-interval temperature, Δt represents the change temperature, tm represents the first reference temperature, ts1 represents the heat lost by unit mass of water in the water pipe per unit surface area, S represents the length of the water pipe, r represents the radius of the water pipe, C represents the specific heat of water, and m represents the mass of water flowing through the water pipe during the detection period. It is used to calculate the temperature change caused by the water pipe during the inspection period. k1 represents the probability of scale formation in the water pipe during the inspection time. ts2 represents the heat lost by unit mass of water in unit area of ​​scale. A represents the area where scale is formed. k2 represents the probability of scale formation with an area size of A. It is used to calculate the temperature change caused by the scale formed in the water pipe during the maintenance time. n represents the number of welding points, and ts3 represents the heat loss of unit mass of water at a single welding point. Used to calculate the temperature changes caused by the welding points of water pipes during the test period.

5. The air conditioning system control method according to any one of claims 1 to 4, characterized in that: The step of regulating the operation modes of the wind system and the water system in the sub-interval to be regulated according to each of the heat change temperatures and the temperature of the second sub-interval comprises: Generate each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated, and obtain a second reference temperature corresponding to each device in the sub-interval to be regulated; Performing intersection processing on each of the second reference temperatures to obtain an intersection temperature range; According to each of the intersection temperature intervals, the total heat change temperature, the temperature of the second sub-interval, and the outdoor temperature outside the underground space, the respective operating modes of the wind system and the water system in the sub-interval to be regulated are determined, and the wind system and the water system are controlled to operate in their respective operating modes in the sub-interval to be regulated.

6. The air conditioning system control method according to claim 5, characterized in that: The step of generating each of the heating change temperatures as the total heating change temperature of the sub-interval to be regulated comprises: Obtaining age parameters of each of the heating devices, and forming age parameters and heating change temperature of each of the heating devices into data key-value pairs, and forming each of the data key-value pairs into an array; The array is transmitted to a preset correction model, and each of the heating change temperatures is corrected based on the preset correction model to obtain the total heating change temperature of the sub-interval to be regulated, wherein the correction formula in the preset correction model is: Wherein, W represents the total heating change temperature, p represents the number of heating devices, f(bi) represents the coefficient prediction function in the preset correction model, which is used to predict the heating change coefficient of the i-th heating device after the service life reaches the service life represented by the service life parameter bi, and ti represents the heating change temperature in the i-th data key-value pair in the array.

7. An air conditioning system for an underground space, characterized in that: The air conditioning system includes a wind system and a water system, the underground space includes a common area and an equipment area, the common area and the equipment area are both divided into a plurality of sub-areas, and the sub-areas corresponding to the common area and the sub-areas corresponding to the equipment area correspond to different detection cycles; The air conditioning system further includes a server, the server including a processor and a memory connected to the processor in communication, the memory storing a control program: The processor is used to execute the control program to implement the air conditioning system control method for the underground space as described in any one of claims 1-6.

8. The air conditioning system for underground space according to claim 7, characterized in that: The air system includes a fresh air device and a return air device, the fresh air duct connected to the fresh air device and the return air duct connected to the return air device both extend to each of the sub-intervals, and the fresh air duct and the return air duct are respectively provided with a fresh air duct valve and a return air duct valve corresponding to each of the sub-intervals; The water system includes a chiller, a cold water pipe connected to the chiller extends to each of the sub-intervals, and the cold water pipe is provided with a cold water pipe valve corresponding to each of the sub-intervals.

9. A storage medium, characterized in that: The storage medium stores a control program, and when the control program is executed by the processor, the air conditioning system control method for the underground space as described in any one of claims 1-7 is implemented.

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