Air conditioner air system maintenance time judgment and control method based on load prediction

Abstract

The application discloses a kind of based on load prediction's air conditioner wind system overhaul time judgment and control method, this method includes: obtaining workshop air volume and temperature and humidity upper limit value, and calculating enthalpy upper limit value;Obtain the cooling capacity required for maintenance matching preset maintenance period, and according to the cooling capacity required for maintenance and workshop air volume, calculate target enthalpy difference;According to target enthalpy difference and enthalpy upper limit value, calculate target air enthalpy;Obtain current temperature and current humidity in workshop, calculate current air enthalpy;Target air enthalpy is compared with current air enthalpy, and determine the maintenance scheme matched with comparison result, avoid the one-sidedness of single temperature and humidity parameter control, can more comprehensive and accurate reflect indoor air energy state, provide basis for environmental protection during maintenance, avoid environmental over-standard risk, guarantee the stability of environment during maintenance, help fast recovery production after maintenance, improve overall production efficiency, automation and intelligent level of maintenance judgment and control.

Description

Technical Field

[0001] This invention relates to the fields of automated cigarette production and intelligent air conditioning control, and in particular to a method for judging and controlling the maintenance time of an air conditioning system based on load prediction. Background Technology

[0002] With the trend of energy conservation and carbon reduction, energy saving in factory systems has become a key focus. In addition to energy optimization of conventional cold and heat source systems, attention is also being paid to the energy-saving potential of air conditioning systems. Due to the irregular needs of factories for maintenance and repair, it is necessary to ensure that the normal production environment can be quickly restored after maintenance, while minimizing system energy consumption during maintenance.

[0003] In related technologies, air conditioning system optimization is usually based on load forecasting technology. This involves collecting indoor and outdoor parameters, combining them with thermal comfort indices to determine regional thermal comfort, dividing the area into zones based on control strategies, and predicting energy consumption using neural network models. Alternatively, it involves constructing room and equipment-related models, extracting a set of load-sensitive parameters, supplementing missing parameters with control algorithms, and then calculating the predicted cooling load value using the model.

[0004] However, existing load forecasting technologies mainly focus on the operating conditions when the air conditioning is on, without covering the interruption event of equipment maintenance. They lack relevant adjustment schemes for temperature and humidity requirements during maintenance periods. The forecast results are only applicable to normal operation scenarios and are difficult to adapt to the actual needs of factory maintenance scenarios, thus reducing the reliability, automation level and intelligence level of air conditioning system maintenance. Summary of the Invention

[0005] This invention provides a method for judging and controlling the maintenance time of air conditioning air systems based on load forecasting, in order to solve the problems of low reliability, low automation level and low intelligence level of air conditioning air system maintenance.

[0006] According to one aspect of the present invention, a method for overhauling an air conditioning system is provided, comprising:

[0007] Obtain the upper limits of workshop air volume, temperature, and humidity, and calculate the upper limit of enthalpy; where the upper limits of temperature and humidity include: upper limit of temperature and upper limit of humidity;

[0008] Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop;

[0009] Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy;

[0010] Obtain the current temperature and humidity in the workshop, and calculate the current air enthalpy.

[0011] The target air enthalpy value is compared with the current air enthalpy value, and a maintenance plan that matches the comparison result is determined.

[0012] According to another aspect of the present invention, an air conditioning system maintenance device is provided, comprising:

[0013] The enthalpy upper limit module is used to obtain the upper limit values ​​of workshop air volume, temperature and humidity, and calculate the upper limit value of enthalpy; among which, the upper limit values ​​of temperature and humidity include: upper limit value of temperature and upper limit value of humidity;

[0014] The target enthalpy difference module is used to obtain the required cooling capacity for maintenance that matches the preset maintenance period, and to calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop.

[0015] The target enthalpy module is used to calculate the target air enthalpy based on the target enthalpy difference and the upper limit of enthalpy.

[0016] The current enthalpy module is used to obtain the current temperature and humidity in the workshop and calculate the current air enthalpy.

[0017] The result matching module is used to compare the target air enthalpy value with the current air enthalpy value and determine the maintenance plan that matches the comparison result.

[0018] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0019] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the air conditioning system maintenance method according to any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions, the computer instructions being configured to cause a processor to execute and implement the air conditioning system maintenance method according to any embodiment of the present invention.

[0021] According to another aspect of the present invention, a computer program product is also provided, including a computer program that, when executed by a processor, implements the steps of the method as described in any embodiment of the present invention.

[0022] The technical solution of this invention, by acquiring the upper limits of workshop air volume and temperature and humidity and converting them into a unified upper limit of enthalpy, avoids the one-sidedness of controlling a single temperature and humidity parameter. It can more comprehensively and accurately reflect the indoor air energy state, providing a basis for environmental protection during maintenance and avoiding the risk of exceeding environmental standards. It acquires the cooling capacity required for maintenance that matches the preset maintenance period, and calculates the target enthalpy difference and target air enthalpy value by combining the workshop air volume quantification. It acquires the current temperature and humidity of the workshop and calculates the current air enthalpy value. By comparing the current air enthalpy value with the target air enthalpy value, it determines the maintenance plan that matches the comparison result, ensuring environmental stability during maintenance, helping to quickly resume production after maintenance, and improving overall production efficiency, reliability of maintenance judgment and control, automation level, and intelligence level.

[0023] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a flowchart of an air conditioning system maintenance method according to Embodiment 1 of the present invention;

[0026] Figure 2 This is a flowchart of another air conditioning system maintenance method provided in Embodiment 2 of the present invention;

[0027] Figure 3 This is a flowchart of another air conditioning system maintenance method provided in Embodiment 3 of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of an air conditioning system maintenance device according to Embodiment 4 of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of an electronic device that implements the air conditioning system maintenance method of Embodiment 5 of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Example 1

[0033] Figure 1 This is a flowchart of an air conditioning system maintenance method provided in Embodiment 1 of the present invention. This embodiment is applicable to the maintenance of air conditioning systems. The method can be executed by an air conditioning system maintenance device, which can be implemented in hardware and / or software and is generally configured in electronic equipment. Figure 1 As shown, the method includes:

[0034] S110. Obtain the upper limit values ​​of workshop air volume, temperature and humidity, and calculate the upper limit value of enthalpy; wherein, the upper limit values ​​of temperature and humidity include: upper limit value of temperature and upper limit value of humidity.

[0035] In this embodiment of the invention, the workshop air volume can be specifically understood as: the total amount of air that can be contained within the workshop, which is the basis for calculating parameters such as air energy state and cooling capacity. The upper limit of temperature and humidity can be specifically understood as: the permissible upper limit standard for natural changes in temperature and humidity within the workshop after the air conditioning is turned off; exceeding this standard may affect maintenance work or subsequent production. The upper limit of enthalpy can be specifically understood as: an air energy state index calculated based on the upper limit of temperature and humidity, comprehensively reflecting the permissible upper limit of the total air energy corresponding to indoor air temperature and humidity after the air conditioning is turned off.

[0036] Specifically, the air volume in the workshop is obtained (which can be calculated by measuring the length, width, and height of the workshop). Based on the specific type of the workshop (its functional attributes and production process characteristics, such as a tobacco processing workshop or a cigarette packaging workshop in cigarette production) and the technical requirements of cigarette production for temperature and humidity, the upper limits of temperature and humidity suitable for the production characteristics of the workshop are determined. The upper limit of enthalpy, based on the upper limits of temperature and humidity, is then calculated using the enthalpy calculation formula.

[0037] For example, based on the air temperature T and humidity φ, using the Antoni equation =exp(AB / (T+C)), calculate the saturated vapor pressure at that temperature. Where A, B, and C are the Antoine constants of water (which vary with temperature range), and exp is the natural exponent. Combined with atmospheric pressure P and humidity φ, the moisture content can be calculated using the formula... Calculate the moisture content d. Use the enthalpy calculation formula. Calculate the enthalpy h.

[0038] S120. Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop.

[0039] In this embodiment of the invention, the preset maintenance period can be specifically understood as: a specific time interval for the pre-planned shutdown and maintenance of the air conditioning system. The required cooling capacity for maintenance can be specifically understood as: the total amount of cooling capacity reserve that the indoor air needs to have to maintain indoor temperature and humidity within the preset maintenance period to ensure they do not exceed the set upper limit. The target enthalpy difference can be specifically understood as: an indicator reflecting the energy difference corresponding to the cooling capacity demand during the maintenance period, or it can be understood as the difference between the upper limit of enthalpy and the target air enthalpy. The target air enthalpy can be specifically understood as: a target energy state indicator that needs to be adjusted to in advance to ensure that indoor temperature and humidity do not exceed the standard during maintenance.

[0040] Specifically, obtain the required cooling capacity for maintenance that matches the preset maintenance period. Select the air density constant under standard conditions, multiply the workshop air volume by the air density to obtain the indoor air mass. Since the cooling capacity is equal to the product of the air mass and the enthalpy difference (the principle of energy conservation, the amount of air cooling capacity reserve corresponds to the amount of its enthalpy decrease), the target enthalpy difference reflecting the cooling capacity requirement for maintenance can be obtained by dividing the required cooling capacity for maintenance by the calculated indoor air mass.

[0041] The process involves first collecting real-time outdoor meteorological parameters (such as temperature, humidity, radiation intensity, and wind speed) and internal workshop conditions (such as residual equipment heat dissipation and personnel numbers) using a sensor array, while simultaneously measuring the heat transfer and heat storage characteristics of the workshop's enclosure structure. The total heat transferred from the outside to the interior through the enclosure structure during the preset maintenance period is calculated, and this is added to the heat generated by internal heat sources during the same period to obtain the total heat absorbed by the indoor air during the maintenance period. This total heat corresponds to the cooling required to prevent indoor temperature and humidity from exceeding their limits during the preset maintenance period.

[0042] Optionally, based on the above embodiments, obtaining the required cooling capacity for maintenance that matches the preset maintenance period may include:

[0043] Based on historical meteorological parameters for the same period, the required cooling capacity for maintenance is predicted to match the preset maintenance period.

[0044] In this embodiment of the invention, the historical meteorological parameters can be specifically understood as: the historical period corresponding to the preset maintenance period in terms of season, date and time, and the meteorological data such as outdoor temperature and humidity, radiation intensity and wind speed recorded during that period.

[0045] Specifically, historical meteorological parameters that match the preset maintenance period in terms of season, date, and time are selected from the database, along with the corresponding cooling capacity data for these periods. Statistical analysis methods (such as correlation analysis or regression analysis) are used to establish the intrinsic relationship between the meteorological parameters and the required cooling capacity, constructing a cooling capacity prediction model that includes variables such as meteorological parameters and maintenance duration. For example, during periods of high temperature and humidity, more heat is transferred from outdoors to indoors, and indoor humidity tends to rise, resulting in higher cooling capacity requirements for maintenance. Conversely, during periods of low temperature and dryness, the cooling capacity requirement is lower.

[0046] By substituting historical meteorological parameters for the same period, meteorological parameters for the current preset maintenance period (such as the actual temperature, humidity and radiation intensity of the current maintenance day), and the specific maintenance duration of the current preset maintenance period into the constructed cooling capacity prediction model, and by integrating and calculating the multi-dimensional data through the model, combined with the environmental constraints of the upper limit of workshop temperature and humidity, the required cooling capacity for maintenance that can meet the temperature and humidity control requirements of the current maintenance period can be predicted.

[0047] By predicting the required cooling capacity for maintenance based on historical meteorological parameters and matching them with the preset maintenance period, the accuracy of the cooling capacity prediction is improved. This is because historical meteorological parameters objectively reflect the climate patterns of that period, such as the seasonal temperature and humidity fluctuation range. The historical parameters ensure that the prediction results closely match the actual climate characteristics of the preset maintenance period, avoiding unrealistic estimations and providing reliable data support for subsequent target enthalpy calculations and temperature and humidity adjustments. Simultaneously, the prediction logic built upon historical data simplifies the cooling capacity acquisition process, reduces the operational complexity and resource consumption of cooling capacity prediction, and improves the efficiency of maintenance preparation. This avoids over-adjustment due to over-predicted values ​​or insufficient cooling capacity reserves due to under-predicted values, balancing energy conservation and environmental protection needs. It reduces ineffective energy consumption of the air conditioning system, ensures a stable indoor environment during maintenance, and prevents insufficient cooling capacity from affecting maintenance or subsequent production. Furthermore, the reusability and continuity of historical data allow for continuous optimization of the prediction logic as data accumulates, adapting to climate differences in different years and the same period, further enhancing the adaptability and sustainability of cooling capacity prediction and enabling long-term adaptation to the cyclical needs of factory maintenance.

[0048] S130. Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy.

[0049] S140. Obtain the current temperature and humidity of the workshop, and calculate the current air enthalpy.

[0050] In this embodiment of the invention, the current air enthalpy value can be specifically understood as an index that reflects the actual air energy state of the room, calculated based on the real-time temperature and humidity of the workshop.

[0051] S150. Compare the target air enthalpy value with the current air enthalpy value, and determine the maintenance plan that matches the comparison result.

[0052] Specifically, the target air enthalpy (which is the ideal energy threshold that the indoor air needs to maintain during maintenance) is calculated using the formula of upper limit of enthalpy minus target enthalpy difference. Then, the current temperature and humidity are obtained in real time by temperature and humidity sensors in the workshop, and substituted into the enthalpy calculation formula to calculate the current air enthalpy.

[0053] By comparing the two enthalpy values ​​and determining the appropriate maintenance plan for the air conditioning system based on the difference and the relationship between them, the air conditioning system is controlled according to the maintenance plan to ensure that the temperature and humidity meet the standards and that energy consumption is optimal during the maintenance period.

[0054] For example, if the current enthalpy is less than the target enthalpy, the system will be shut down for maintenance. If the current enthalpy is slightly higher than the target enthalpy (the difference between the current enthalpy and the target enthalpy is greater than a preset smaller threshold but less than a preset larger threshold), the air conditioning systems in each area will be shut down for maintenance in batches. One area will be shut down for maintenance first, while the air conditioning in the remaining areas will continue to operate normally to maintain the overall workshop enthalpy within the upper limit. Once the maintenance in that area is completed, the air conditioning will be restored, and then the next area will be shut down for maintenance. This rotation method prevents the overall workshop enthalpy from spiraling out of control.

[0055] If the current enthalpy value is much higher than the target enthalpy value (the difference between the current enthalpy value and the target enthalpy value is greater than or equal to a preset larger threshold), the time window for a single maintenance can be shortened and divided into multiple batches of short-duration maintenance (e.g., the original maintenance period of 4 hours is divided into two 2-hour sub-maintenance periods). After the first short-duration shutdown maintenance is completed, the air conditioning is restored to operation, and the indoor enthalpy value is reduced back to the matching target value before the second shutdown maintenance is carried out. By operating in batches of short-duration work, it is ensured that the enthalpy value does not exceed the upper limit during each maintenance period.

[0056] The technical solution of this invention, by acquiring the upper limits of workshop air volume and temperature and humidity and converting them into a unified upper limit of enthalpy, avoids the one-sidedness of controlling a single temperature and humidity parameter. It can more comprehensively and accurately reflect the indoor air energy state, providing a basis for environmental protection during maintenance and avoiding the risk of exceeding environmental standards. It acquires the cooling capacity required for maintenance that matches the preset maintenance period, and calculates the target enthalpy difference and target air enthalpy value by combining the workshop air volume quantification. It acquires the current temperature and humidity of the workshop and calculates the current air enthalpy value. By comparing the current air enthalpy value with the target air enthalpy value, it determines the maintenance plan that matches the comparison result, ensuring environmental stability during maintenance, helping to quickly resume production after maintenance, and improving overall production efficiency, reliability of maintenance judgment and control, automation level, and intelligence level.

[0057] Example 2

[0058] Figure 2 This is a flowchart illustrating another air conditioning system maintenance method provided in Embodiment 2 of the present invention. This embodiment is a refinement of the air conditioning system maintenance method in the above embodiments. Accordingly, as... Figure 2 As shown, the method includes:

[0059] S210. Obtain the upper limit values ​​of workshop air volume, temperature and humidity, and calculate the upper limit value of enthalpy.

[0060] The upper limits for temperature and humidity include the upper limit for temperature and the upper limit for humidity.

[0061] S220. Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop.

[0062] S230. Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy.

[0063] S240. Obtain the lower limits of temperature and humidity, and calculate the lower limit of enthalpy.

[0064] The upper limits for temperature and humidity include: the lower limit for temperature and the lower limit for humidity.

[0065] In this embodiment of the invention, the lower limit of temperature and humidity can be specifically understood as: the minimum limit for adjusting the target indoor temperature and humidity. Values ​​below this limit may affect workshop production, equipment safety, or personnel comfort (e.g., low temperature causing pipe cracking, low humidity generating static electricity). The lower limit of enthalpy can be specifically understood as: an air energy state index calculated based on the lower limit of temperature and humidity, comprehensively reflecting the minimum total air energy corresponding to the lower limit of temperature and humidity.

[0066] S250. When the target air enthalpy value is lower than the lower limit of enthalpy, the calculated target air enthalpy value is updated to the lower limit of enthalpy.

[0067] Specifically, based on the workshop's production process requirements, equipment operating standards, and personnel comfort needs, the lower limits of temperature and humidity are obtained, and then converted into lower limits of enthalpy using the enthalpy calculation formula.

[0068] The target air enthalpy value calculated based on the maintenance cooling demand is compared with the lower limit of this enthalpy value. If the target air enthalpy value is lower than the lower limit of the enthalpy value, it means that the original target state will cause the indoor temperature and humidity to fall below the minimum limit. At this time, the calculated target air enthalpy value needs to be updated to the lower limit of the enthalpy value (to ensure that the workshop temperature and humidity are not lower than the set minimum limit, and to avoid affecting production safety or equipment stability due to excessive pursuit of cooling capacity reserves). Finally, a compliant target air enthalpy value is formed that meets both the maintenance cooling demand and the minimum temperature and humidity constraints.

[0069] Furthermore, based on the above embodiments, after updating the calculated target air enthalpy value to the lower limit of enthalpy, the method may further include:

[0070] The air conditions in the workshop are regulated using a preset adjustment method, and when the air conditions in the workshop are detected to have reached the lower limit of temperature and humidity, the maximum duration of indoor temperature and humidity after the air conditioner is turned off is calculated.

[0071] When the maintenance start time is detected, the future moment when the indoor air condition will naturally change to the upper limit of temperature and humidity is predicted based on the maximum maintenance time and the maintenance start time.

[0072] The aforementioned future time is provided to maintenance personnel as the ideal end time for maintenance.

[0073] In this embodiment of the invention, the preset adjustment method can be specifically understood as: a pre-defined standardized adjustment method for workshop temperature and humidity, such as fixed-frequency air conditioning dehumidification, zoned temperature control, and gradual load reduction, used to adjust the workshop air conditions to the lower limit of temperature and humidity. The maximum maintenance time can be specifically understood as: the time it takes for the indoor temperature and humidity to naturally rise from the lower limit to the upper limit after the air conditioner is turned off. This is calculated jointly by the workshop air quality, enthalpy difference, and heat load rate, and is a time indicator used to measure the stability of the indoor environment.

[0074] The heat load rate can be specifically understood as the increase in heat in indoor air per unit time caused by factors such as outdoor heat transfer and internal heat sources during the maintenance period, reflecting the rate of increase in indoor enthalpy. The ideal maintenance end time can be specifically understood as the latest time at which maintenance ends, calculated based on the maximum maintenance time and maintenance start time, before the indoor temperature and humidity exceed their upper limits; it serves as the time benchmark for guiding maintenance work. The future time can be specifically understood as the point in time when the indoor air conditions naturally change to the upper limits of temperature and humidity; it is the same concept as the ideal maintenance end time.

[0075] Specifically, after updating the calculated target air enthalpy value to the lower limit of enthalpy, the air condition in the workshop is adjusted according to the preset adjustment method. When the sensor detects that the air condition in the workshop has reached the lower limit of temperature and humidity, the maximum maintenance time of indoor temperature and humidity after the air conditioner is turned off is calculated based on the workshop air quality, the difference between the upper limit of workshop enthalpy and the current air enthalpy, and the indoor heat load rate during the maintenance period (maximum maintenance time = workshop air quality × difference between the upper limit of workshop enthalpy and the current air enthalpy / heat load rate).

[0076] When the maintenance start time is detected, the air conditioner is turned off. The maintenance start time is added to the maximum maintenance time to determine the future moment when the indoor air condition reaches the upper limit of temperature and humidity. This future moment is provided to the maintenance personnel as the ideal maintenance end time. This allows the maintenance personnel to know the latest end time when the indoor environment can be maintained in a qualified state without turning on the air conditioner, which is convenient for planning the sequence and rhythm of maintenance procedures in advance and prioritizing the maintenance of core components.

[0077] If it is anticipated that the work cannot be completed by the designated time, remedial measures such as temporary cooling and phased maintenance can be taken in advance to avoid indoor temperature and humidity exceeding the standard due to maintenance exceeding the time limit, which would affect the safety of workshop equipment and subsequent production recovery. At the same time, it can also help managers to rationally allocate human and material resources, improve the planning and efficiency of maintenance work, and reduce the risk of production delays or equipment failures caused by environmental out-of-control conditions.

[0078] After updating the calculated target air enthalpy value to the lower limit of enthalpy, the workshop air condition is adjusted to the lower limit of temperature and humidity through preset adjustment methods, and the maximum maintenance time after the air conditioning is turned off is calculated. Then, combined with the maintenance start time, the future time when the indoor temperature and humidity reach the upper limit is predicted and provided to the maintenance personnel as the ideal maintenance end time. This sets a clear time boundary for the maintenance work, which makes it easier for maintenance personnel to plan the priority of the work process and the work rhythm in advance, and to complete the maintenance of core components first. At the same time, it helps managers to rationally allocate human and material resources based on this time point, avoid resource idleness or shortage, effectively improve the planning, efficiency and resource utilization efficiency of the maintenance work, and ensure the safety of workshop equipment and the stability of subsequent production recovery. If the maintenance personnel predict that the work cannot be completed at this time point, they can also take remedial measures such as temporary cooling and rotation of maintenance in different areas in advance to avoid the risk of exceeding environmental standards from the source and reduce losses such as production delays, material damage or equipment failure caused by exceeding temperature and humidity standards.

[0079] Furthermore, based on the above embodiments, before adjusting the workshop air condition using a preset adjustment method, the following may also be included:

[0080] Collect the supply and return air temperature and humidity of the air conditioning system, and calculate the supply and return air enthalpy values; wherein, the supply and return air temperature and humidity include: supply air temperature, supply air humidity, return air temperature and return air humidity; the supply and return air enthalpy values ​​include: supply air enthalpy value and return air enthalpy value.

[0081] Calculate the current cooling capacity based on the supply air enthalpy, return air enthalpy, and workshop air volume;

[0082] Determine the adjustment time required to adjust the current air enthalpy value in the workshop to the target air enthalpy value based on the current cooling capacity, and compare the adjustment time with the preset maintenance period to determine the adjustment method.

[0083] In this embodiment of the invention, the supply and return air temperature and humidity can be specifically understood as: operating parameters of the air conditioning system, including supply air temperature, supply air humidity (temperature and humidity of the air supplied by the air conditioner to the workshop), return air temperature, and return air humidity (temperature and humidity of the workshop air returning to the air conditioner after use), which directly reflect the heat exchange effect of the air conditioner and the indoor air conditioner status. The supply and return air enthalpy can be specifically understood as: air energy indicators calculated based on the supply and return air temperature and humidity, including supply air enthalpy (total energy of the supplied air) and return air enthalpy (total energy of the returned air), used to quantify the air conditioning cooling capacity.

[0084] The current cooling capacity can be understood as the actual cooling capacity currently output by the air conditioning system, calculated using the difference in enthalpy between the supply and return air and the volume of air in the workshop, reflecting the real-time cooling efficiency of the air conditioning. The adjustment time can be understood as the time required to adjust the current air enthalpy in the workshop to the target air enthalpy, derived from the difference between the current cooling capacity and the enthalpy. The adjustment method can be understood as the air conditioning operation strategy determined based on a comparison between the adjustment time and a preset maintenance period (such as full-load adjustment, phased adjustment, and auxiliary adjustment by adding additional units).

[0085] Specifically, before adjusting the workshop air conditions using a preset adjustment method, the temperature and humidity of the supply and return air are collected by the temperature and humidity sensors of the air conditioning system. Based on the enthalpy calculation formula, the corresponding supply air enthalpy and return air enthalpy are calculated respectively. Combined with the determined workshop air volume, the current actual cooling capacity output by the air conditioning system is calculated using the formula: Current cooling capacity = (Return air enthalpy - Supply air enthalpy) × Workshop air volume × Air density. Based on the current cooling capacity and the difference between the current workshop air enthalpy and the target air enthalpy, the adjustment time required to adjust the indoor air enthalpy to the target value is calculated.

[0086] For example, based on the formula: workshop air quality = workshop air volume × air density, total cooling capacity to be removed = workshop air quality × difference between current air enthalpy and target air enthalpy, and adjustment time = total cooling capacity to be removed / current cooling capacity, the adjustment time required to adjust the indoor air enthalpy to the target value can be calculated.

[0087] The adjustment duration is compared with the preset maintenance period, and the appropriate air conditioning adjustment method is determined based on the comparison results.

[0088] For example, if the adjustment time is less than the preparation time for the preset maintenance period, full-load adjustment can be used to quickly reach the target. If the adjustment time is equal to or slightly greater than the preparation time (the difference between the adjustment time and the preparation time is greater than or equal to 0 and less than the preset threshold), auxiliary adjustment by adding standby units can be used to shorten the time. If the adjustment time is much greater than the preparation time (the difference between the adjustment time and the preparation time is greater than or equal to the preset threshold), a regional adjustment and maintenance approach can be adopted, continuing to complete the adjustment of the remaining areas during the maintenance process to ensure that the maintenance plan is not affected.

[0089] Before adjusting the air conditions in the workshop using a preset adjustment method, the temperature and humidity of the supply and return air of the air conditioning system are collected, and the enthalpy values ​​of the supply and return air are calculated. Then, combined with the air volume in the workshop, the current cooling capacity is calculated. This allows for precise quantification of the actual cooling capacity of the air conditioning system, avoiding the deviation of judging the cooling effect solely based on the rated parameters of the equipment, and improving the accuracy of the predicted adjustment time. Based on this, the adjustment time required to adjust the current air enthalpy value in the workshop to the target air enthalpy value is determined according to the current cooling capacity. This time is then compared with the preset maintenance period to determine the adjustment method. Based on quantified time and cooling capacity data, scientific and data-driven decision-making on the adjustment method is achieved, avoiding energy waste or untimely adjustment caused by blind adjustment, and ensuring the precise connection between maintenance preparation work and the preset maintenance period. At the same time, predicting the adjustment time in advance can help determine whether the adjustment can be completed within the maintenance preparation period. If the adjustment time far exceeds the preparation time, it can be adjusted to a phased adjustment or other adaptive scheme in a timely manner. This allows for the early identification of adjustment time risks during the maintenance preparation period, facilitating the timely adoption of targeted adjustment strategies and avoiding the impact of adjustment timeouts on the normal progress of the maintenance plan.

[0090] Optionally, based on the above embodiments, the adjustment duration is compared with a preset maintenance period to determine the adjustment method, including:

[0091] If the adjustment time is less than or equal to the preparation time of the preset maintenance period, then the conventional adjustment method will be adopted.

[0092] If the adjustment period exceeds the preparation time for the preset maintenance period, then the enhanced adjustment method will be adopted.

[0093] In this embodiment of the invention, the preparation time for the preset maintenance period can be specifically understood as: the interval from the current moment to the official start of maintenance, which is the time window for air conditioning adjustment and determines the longest available time for adjustment work. The conventional adjustment method can be specifically understood as: the air conditioner continuously operates at its current cooling capacity without additionally increasing cooling output, steadily adjusting the air enthalpy to the target value, suitable for scenarios with ample time. The enhanced adjustment method can be specifically understood as: shortening the adjustment time by increasing the cooling output of the air conditioning system (such as increasing fan speed, increasing refrigerant flow, or adding a standby unit), suitable for scenarios with tight time constraints. Cooling output can be specifically understood as: the magnitude of the cooling capacity output by the air conditioning system directly affects the rate of enthalpy decrease per unit time, and is a factor determining the adjustment time.

[0094] Specifically, the calculated adjustment time is compared with the pre-set preparation time for the maintenance period: if the adjustment time is less than or equal to the preparation time, it indicates that the existing air conditioning cooling capacity is sufficient to support the adjustment before the maintenance starts, and no additional adjustment of operating parameters is required. Therefore, the conventional adjustment method is adopted, allowing the air conditioning to continue operating at the current cooling capacity and steadily adjust the enthalpy value of the workshop air to the target value. If the adjustment time is longer than the preparation time, it indicates that proceeding with the adjustment according to the current cooling output will result in adjustment timeout and affect the maintenance plan. In this case, it is necessary to increase the cooling output of the air conditioning system (such as increasing the fan speed, increasing the refrigerant circulation flow, or adding a backup refrigeration unit) to accelerate the rate of enthalpy decrease per unit time, thereby shortening the overall adjustment time and ensuring that the air condition adjustment is completed before the maintenance begins.

[0095] By comparing the adjustment time with the preparation time of the preset maintenance period, a conventional adjustment method is used when the adjustment time is less than or equal to the preparation time, and an enhanced adjustment method is used when it is greater than the preparation time. This achieves dynamic adaptation of the adjustment method, allowing the adjustment strategy to accurately fit the actual time constraints and improving the flexibility of maintenance preparation. At the same time, when there is sufficient time, the conventional adjustment method is selected, without the need to increase the cooling output, avoiding the ineffective energy consumption caused by the over-operation of the air conditioning system. This ensures that the adjustment meets the standards while achieving energy saving and reducing consumption, thus lowering the air conditioning operating costs. When time is tight, the enhanced adjustment method is switched in time. By increasing the cooling output and shortening the adjustment time, the risk of adjustment timeout can be effectively avoided, ensuring that the air condition adjustment is completed before the maintenance begins. This ensures that the maintenance plan starts smoothly according to the preset time, avoids the impact of adjustment delays on the production rhythm, and improves the reliability and efficiency of workshop air condition adjustment.

[0096] S260. Obtain the current temperature and humidity of the workshop and calculate the current air enthalpy.

[0097] S270. Compare the target air enthalpy value with the current air enthalpy value, and determine the maintenance plan that matches the comparison result.

[0098] The technical solution of this invention, by acquiring the upper limits of workshop air volume and temperature and humidity and converting them into a unified upper limit of enthalpy, avoids the one-sidedness of controlling a single temperature and humidity parameter. It can more comprehensively and accurately reflect the indoor air energy state, providing a basis for environmental protection during maintenance and avoiding the risk of exceeding environmental standards. It acquires the cooling capacity required for maintenance that matches the preset maintenance period, and calculates the target enthalpy difference and target air enthalpy value by combining the workshop air volume. By acquiring the lower limits of temperature and humidity and calculating the corresponding lower limit of enthalpy, a safety baseline is set for the target air enthalpy value. When the calculated target air enthalpy value is lower than the lower limit of enthalpy, it is updated to the lower limit of enthalpy. This operation can directly avoid excessively reducing indoor temperature and humidity to meet the cooling capacity requirements of maintenance, prevent indoor temperature and humidity from falling below the minimum standards required for production, equipment, or personnel, avoid problems such as low temperature damage to materials and low humidity generating static electricity, and ensure that the indoor environment is always within a safe range. At the same time, it avoids the additional costs caused by environmental anomalies due to excessive adjustment, making energy-saving adjustment based on safety and controllability, and improving the practicality and reliability of the solution. The system acquires the current temperature and humidity of the workshop and calculates the current air enthalpy. By comparing the current air enthalpy with the target air enthalpy, it determines a maintenance plan that matches the comparison results, ensuring environmental stability during maintenance, facilitating rapid resumption of production after maintenance, and improving overall production efficiency, reliability of maintenance judgment and control, automation level, and intelligence level.

[0099] Example 3

[0100] Figure 3 This is a flowchart of another air conditioning system maintenance method provided in Embodiment 3 of the present invention. This embodiment is a refinement of the step in the above embodiment of "comparing the target air enthalpy value with the current air enthalpy value and determining a maintenance plan that matches the comparison result". Figure 3 As shown, the method includes:

[0101] S310. Obtain the upper limit values ​​of workshop air volume, temperature and humidity, and calculate the upper limit value of enthalpy.

[0102] The upper limits for temperature and humidity include the upper limit for temperature and the upper limit for humidity.

[0103] S320. Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop.

[0104] S330. Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy.

[0105] S340: Obtain the current temperature and humidity of the workshop, and calculate the current air enthalpy.

[0106] S350. If the current air enthalpy is less than or equal to the target air enthalpy, a direct shutdown and maintenance solution shall be adopted.

[0107] S360. If the current air enthalpy is greater than the target air enthalpy, first adjust the current temperature and humidity of the workshop, and then perform a shutdown maintenance when the current air enthalpy is detected to drop to the target air enthalpy.

[0108] Specifically, the current temperature and humidity in the workshop are collected by temperature and humidity sensors, the current air enthalpy value is calculated, and then compared with the preset target air enthalpy value.

[0109] If the current air enthalpy is less than or equal to the target air enthalpy, it indicates that the total energy of the indoor air is within the ideal range. After the air conditioner is turned off, the time it takes for the temperature and humidity to rise to the upper limit can cover the maintenance cycle. No additional adjustment is needed. The direct shutdown maintenance plan can be adopted directly, and the air conditioner can be stopped immediately and maintenance work can be carried out.

[0110] If the current air enthalpy is greater than the target air enthalpy, it indicates that there is excess air energy. Directly shutting down the machine may cause the temperature and humidity to exceed the standard rapidly during the maintenance period. It is necessary to start the adjustment process first.

[0111] During the adjustment process, the temperature parameter can be adjusted first, and the indoor temperature can be gradually reduced through the air conditioning cooling system (e.g., reducing sensible heat by 0.1 degrees Celsius each time). Then, the dehumidification function can be finely adjusted simultaneously to gradually reduce the relative humidity (e.g., reducing the relative humidity by 1% each time to reduce latent heat). By cooling first and then adjusting the humidity, the enthalpy value can be steadily reduced. During this period, the sensor monitors the enthalpy value change in real time. When the current air enthalpy value is detected to drop to the target air enthalpy value, the adjustment is stopped immediately and a shutdown maintenance is performed to ensure that the indoor temperature and humidity remain within the qualified range during the maintenance period.

[0112] In a specific example, an air conditioning system maintenance method focuses on load forecasting and enthalpy control: First, the indoor air volume and upper and lower limits of temperature and humidity are determined based on the workshop type and requirements, and the corresponding upper and lower limits of enthalpy are calculated. Next, the supply and return air temperature and humidity are input to calculate the enthalpy of the supply and return air, and the current cooling capacity is obtained by combining this with the indoor air volume. Then, the maintenance time is input, and the required cooling capacity for the maintenance period is predicted based on historical meteorological parameters for the same period. This allows for the calculation of the enthalpy difference between the upper limit of indoor air and the target air, as well as the enthalpy of the target air. Finally, the current indoor air volume is obtained. The system monitors temperature and humidity and calculates the current enthalpy value. If the current enthalpy value is less than or equal to the target enthalpy value, the system is shut down for maintenance. If the current enthalpy value is greater than the target enthalpy value, the temperature is adjusted first (gradually decreasing), and the humidity is fine-tuned simultaneously until the current enthalpy value drops to the target value before the system is shut down for maintenance. At the same time, if the temperature and humidity are adjusted to the lower limit, the maximum maintenance time after the air conditioner is turned off is calculated. Combined with the maintenance start time, the system predicts when the temperature and humidity will reach the upper limit as the ideal maintenance end time. If the time is exceeded, the air conditioner is restarted in advance to ensure that the temperature and humidity meet the requirements during the maintenance period.

[0113] By predicting historical loads and calculating enthalpy values, the system achieves intelligent and precise maintenance of the air conditioning system. By adjusting the indoor air to the target enthalpy value in advance before shutting down the system, it ensures stable temperature and humidity during maintenance, avoids production delays, minimizes air conditioning energy consumption during maintenance, reduces unnecessary operation of compressors and fans, and extends equipment lifespan. By combining the prediction of upper and lower limits of temperature and humidity with the maximum maintenance time, the system can dynamically control the maintenance schedule, adapting to the temperature and humidity requirements of different workshops and improving scenario adaptability. In addition, this method can improve the system's automation level, achieve synchronous temperature and humidity adjustment, avoid exceeding the standard caused by single parameter control, save energy, ensure rapid resumption of production after maintenance, improve overall production efficiency, and effectively solve the problems of energy waste and environmental non-compliance caused by manually switching air conditioning on and off.

[0114] The technical solution of this invention, by acquiring the upper limits of workshop air volume and temperature and humidity and converting them into a unified upper limit of enthalpy, avoids the one-sidedness of controlling a single temperature and humidity parameter. This provides a more comprehensive and accurate reflection of the indoor air energy state, offering a basis for environmental protection during maintenance and mitigating the risk of exceeding environmental standards. It acquires the required cooling capacity for maintenance matching the preset maintenance period, and calculates the target enthalpy difference and target air enthalpy value by combining the workshop air volume quantification. It acquires the current temperature and humidity of the workshop and calculates the current air enthalpy value. By comparing the current air enthalpy value with the target air enthalpy value, it determines differentiated maintenance procedures. The proposed solution allows for direct shutdown and maintenance when the current air enthalpy value meets or exceeds the target requirements, avoiding unnecessary redundant operation of the air conditioning system, effectively reducing ineffective energy consumption, and achieving energy conservation and consumption reduction. When the current air enthalpy value does not meet the target, the temperature and humidity are adjusted to the target values ​​before shutdown and maintenance. This ensures that the indoor environment remains within the acceptable range during maintenance, preventing maintenance interruptions or impacts on subsequent production due to substandard environmental conditions. It provides reliable support for the smooth progress of maintenance work and rapid resumption of production, improves the automation and intelligence level of maintenance preparation, reduces manual intervention costs, and shortens the pre-maintenance preparation cycle.

[0115] Example 4

[0116] Figure 4 This is a schematic diagram of the structure of an air conditioning system maintenance device provided in Embodiment 4 of the present invention. Figure 4 As shown, the device includes:

[0117] The enthalpy upper limit module 410 is used to obtain the upper limit values ​​of workshop air volume and temperature and humidity, and to calculate the upper limit value of enthalpy; wherein, the upper limit values ​​of temperature and humidity include: upper limit value of temperature and upper limit value of humidity;

[0118] The target enthalpy difference module 420 is used to obtain the required cooling capacity for maintenance that matches the preset maintenance period, and to calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop.

[0119] The target enthalpy module 430 is used to calculate the target air enthalpy based on the target enthalpy difference and the upper limit of enthalpy.

[0120] The current enthalpy module 440 is used to obtain the current temperature and humidity of the workshop and calculate the current air enthalpy.

[0121] The result matching module 450 is used to compare the target air enthalpy value with the current air enthalpy value and determine the maintenance plan that matches the comparison result.

[0122] The technical solution of this invention, by acquiring the upper limits of workshop air volume and temperature and humidity and converting them into a unified upper limit of enthalpy, avoids the one-sidedness of controlling a single temperature and humidity parameter. It can more comprehensively and accurately reflect the indoor air energy state, providing a basis for environmental protection during maintenance and avoiding the risk of exceeding environmental standards. It acquires the cooling capacity required for maintenance that matches the preset maintenance period, and calculates the target enthalpy difference and target air enthalpy value by combining the workshop air volume quantification. It acquires the current temperature and humidity of the workshop and calculates the current air enthalpy value. By comparing the current air enthalpy value with the target air enthalpy value, it determines the maintenance plan that matches the comparison result, ensuring environmental stability during maintenance, helping to quickly resume production after maintenance, and improving overall production efficiency, reliability of maintenance judgment and control, automation level, and intelligence level.

[0123] Based on the above embodiments, the target enthalpy difference module 420 is specifically used for:

[0124] Based on historical meteorological parameters for the same period, the required cooling capacity for maintenance is predicted to match the preset maintenance period.

[0125] Furthermore, based on the above embodiments, the air conditioning system maintenance device may further include: an enthalpy lower limit module and a target update module, wherein:

[0126] The enthalpy lower limit module is used to calculate the target air enthalpy value based on the target enthalpy difference and the enthalpy upper limit value, obtain the temperature and humidity lower limit values, and calculate the enthalpy lower limit value; wherein, the temperature and humidity upper limit values ​​include: the temperature lower limit value and the humidity lower limit value;

[0127] The target update module is used to update the calculated target air enthalpy value to the lower limit value when the target air enthalpy value is lower than the lower limit value.

[0128] Based on the above embodiments, the result matching module 450 is specifically used for:

[0129] If the current air enthalpy is less than or equal to the target air enthalpy, the solution is to directly shut down the machine for maintenance.

[0130] If the current air enthalpy is greater than the target air enthalpy, the current temperature and humidity of the workshop will be adjusted first, and the shutdown maintenance will be carried out when the current air enthalpy is detected to drop to the target air enthalpy.

[0131] Furthermore, based on the above embodiments, the air conditioning system maintenance device may further include: a maintenance calculation module, a prediction timing module, and an ideal maintenance module, wherein:

[0132] The maintenance calculation module is used to adjust the air condition in the workshop using a preset adjustment method after updating the calculated target air enthalpy value to the lower limit of enthalpy value, and to calculate the maximum maintenance time of indoor temperature and humidity after the air conditioner is turned off when the air condition in the workshop is detected to have reached the lower limit of temperature and humidity.

[0133] The prediction time module is used to predict the future time when the indoor air conditions will naturally change to the upper limit of temperature and humidity, based on the maximum maintenance time and the maintenance start time, when the maintenance start time is detected.

[0134] The ideal maintenance module is used to provide the maintenance personnel with the future time as the ideal maintenance end time.

[0135] Furthermore, based on the above embodiments, the air conditioning system maintenance device may further include: a supply and return air enthalpy module, a current cooling module, and a regulation mode module, wherein:

[0136] The supply and return air enthalpy module is used to collect the supply and return air temperature and humidity of the air conditioning system and calculate the supply and return air enthalpy values ​​before adjusting the air conditions in the workshop using a preset adjustment method. The supply and return air temperature and humidity include: supply air temperature, supply air humidity, return air temperature and return air humidity; the supply and return air enthalpy values ​​include: supply air enthalpy value and return air enthalpy value.

[0137] The current cooling module is used to calculate the current cooling capacity based on the supply air enthalpy, return air enthalpy, and workshop air volume;

[0138] The adjustment mode module is used to determine the adjustment time required to adjust the current air enthalpy value in the workshop to the target air enthalpy value based on the current cooling capacity, and compares the adjustment time with the preset maintenance period to determine the adjustment mode.

[0139] Based on the above embodiments, the adjustment method module is specifically used for:

[0140] If the adjustment time is less than or equal to the preparation time of the preset maintenance period, then the conventional adjustment method will be adopted.

[0141] If the adjustment period exceeds the preparation time for the preset maintenance period, then the enhanced adjustment method will be adopted.

[0142] The air conditioning system maintenance device provided in this embodiment of the invention can perform the air conditioning system maintenance method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0143] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the technical solution disclosed herein comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0144] Example 5

[0145] Figure 5 A schematic diagram of an electronic device 10, which can be used to implement embodiments of the present invention, is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0146] like Figure 5 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0147] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0148] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the air conditioning system maintenance method, i.e.:

[0149] Obtain the upper limits of workshop air volume, temperature, and humidity, and calculate the upper limit of enthalpy; where the upper limits of temperature and humidity include: upper limit of temperature and upper limit of humidity;

[0150] Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop;

[0151] Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy;

[0152] Obtain the current temperature and humidity in the workshop, and calculate the current air enthalpy.

[0153] The target air enthalpy value is compared with the current air enthalpy value, and a maintenance plan that matches the comparison result is determined.

[0154] In some embodiments, the air conditioning system maintenance method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the air conditioning system maintenance method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the air conditioning system maintenance method by any other suitable means (e.g., by means of firmware).

[0155] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0156] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0157] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0158] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0159] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0160] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0161] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0162] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for overhauling an air conditioning system, characterized in that, include: Obtain the upper limits of workshop air volume, temperature, and humidity, and calculate the upper limit of enthalpy; where the upper limits of temperature and humidity include: upper limit of temperature and upper limit of humidity; Obtain the required cooling capacity for maintenance that matches the preset maintenance period, and calculate the target enthalpy difference based on the required cooling capacity for maintenance and the air volume in the workshop; Calculate the target air enthalpy value based on the target enthalpy difference and the upper limit of enthalpy; Obtain the current temperature and humidity in the workshop, and calculate the current air enthalpy. The target air enthalpy value is compared with the current air enthalpy value, and a maintenance plan that matches the comparison result is determined.

2. The method according to claim 1, characterized in that, Obtain the required cooling capacity for maintenance that matches the preset maintenance period, including: Based on historical meteorological parameters for the same period, the required cooling capacity for maintenance is predicted to match the preset maintenance period.

3. The method according to claim 1, characterized in that, After calculating the target air enthalpy based on the target enthalpy difference and the upper limit of enthalpy, the following steps are also included: Obtain the lower limits of temperature and humidity, and calculate the lower limit of enthalpy; wherein, the lower limits of temperature and humidity include: the lower limit of temperature and the lower limit of humidity; When the target air enthalpy is lower than the lower limit of enthalpy, the calculated target air enthalpy is updated to the lower limit of enthalpy.

4. The method according to claim 1, characterized in that, Compare the target air enthalpy value with the current air enthalpy value, and determine the maintenance plan that matches the comparison result, including: If the current air enthalpy is less than or equal to the target air enthalpy, the solution is to directly shut down the machine for maintenance. If the current air enthalpy is greater than the target air enthalpy, the current temperature and humidity of the workshop will be adjusted first, and the shutdown maintenance will be carried out when the current air enthalpy is detected to drop to the target air enthalpy.

5. The method according to claim 3, characterized in that, After updating the calculated target air enthalpy value to the lower limit of enthalpy, the following is also included: The air conditions in the workshop are regulated using a preset adjustment method, and when the air conditions in the workshop are detected to have reached the lower limit of temperature and humidity, the maximum duration of indoor temperature and humidity after the air conditioner is turned off is calculated. When the maintenance start time is detected, the future moment when the indoor air condition will naturally change to the upper limit of temperature and humidity is predicted based on the maximum maintenance time and the maintenance start time. The aforementioned future time is provided to maintenance personnel as the ideal end time for maintenance.

6. The method according to claim 5, characterized in that, Before adjusting the workshop air conditions using a preset adjustment method, the following steps are also included: Collect the supply and return air temperature and humidity of the air conditioning system, and calculate the supply and return air enthalpy values; wherein, the supply and return air temperature and humidity include: supply air temperature, supply air humidity, return air temperature and return air humidity; the supply and return air enthalpy values ​​include: supply air enthalpy value and return air enthalpy value. Calculate the current cooling capacity based on the supply air enthalpy, return air enthalpy, and workshop air volume; Determine the adjustment time required to adjust the current air enthalpy value in the workshop to the target air enthalpy value based on the current cooling capacity, and compare the adjustment time with the preset maintenance period to determine the adjustment method.

7. The method according to claim 6, characterized in that, The adjustment duration is compared with the preset maintenance period to determine the adjustment method, including: If the adjustment time is less than or equal to the preparation time of the preset maintenance period, then the conventional adjustment method will be adopted. If the adjustment period exceeds the preparation time for the preset maintenance period, then the enhanced adjustment method will be adopted.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the air conditioning system maintenance method according to any one of claims 1-7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that are used to cause a processor to execute the air conditioning system maintenance method according to any one of claims 1-7.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the air conditioning system maintenance method according to any one of claims 1-7.

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