Air conditioner oxygen production control method, electronic device, and computer-readable storage medium
Patent Information
- Application Number
- CN202610631782.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-08
- Publication Date
- 2026-08-28
AI Technical Summary
在该类方案下,制氧机组难以根据实际制氧需求对制氧流量及氧气浓度进行精细控制,一般通过简单的启停逻辑维持基本运行状态,制氧系统与空调系统之间的协同控制关联度较低,在不同环境条件、负载变化或使用需求下,难以实现合理的运行匹配
[0008] This application provides an air conditioning oxygen generation control method, which includes: detecting that the current oxygen concentration is lower than the target oxygen concentration; collecting environmental parameters at the inlet of the oxygen compressor and molecular sieve temperature parameters; determining the operating conditions of the oxygen compressor; and controlling the start of the oxygen compressor. During the operation of the oxygen compressor, collecting exhaust temperature and oxygen output status parameters; and implementing frequency limiting or shutdown protection based on the exhaust temperature. If the protection is not triggered, the operating frequency is dynamically adjusted based on the oxygen output status. By combining the spatial oxygen concentration, the inlet environmental conditions, the molecular sieve temperature, and the exhaust temperature for determination, and controlling the operation, frequency limiting, and shutdown protection of the oxygen compressor based on the determination results, the operation of the oxygen compressor is coordinated with the adjustment of environmental conditions, achieving collaborative control between the air conditioning system and the oxygen compressor, and improving the service life of the oxygen compressor.
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Figure CN122650481A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air conditioning control technology, and in particular to an air conditioning oxygen production control method, electronic equipment, and computer-readable storage medium. Background Technology
[0002] Oxygen-generating air conditioning systems are used to improve indoor air quality and oxygen levels. Currently, oxygen-generating air conditioning systems typically integrate oxygen generators into air conditioning units to continuously supply oxygen to indoor spaces, combining cooling, ventilation, and oxygen supply functions.
[0003] In existing oxygen-generating air conditioning systems, oxygen generators mostly employ fixed-frequency oxygen compressors, whose operation is primarily based on start-stop control. The compressors operate at a fixed frequency, lacking dynamic adjustment capabilities during oxygen production. Under this approach, it's difficult for the oxygen generators to precisely control the oxygen flow rate and concentration according to actual demand. They typically maintain basic operation through simple start-stop logic. The coordination and control between the oxygen generation system and the air conditioning system are weak, making it difficult to achieve reasonable operational matching under different environmental conditions, load variations, or usage requirements. Summary of the Invention
[0004] This application provides an air conditioning oxygen production control method, electronic device, and computer-readable storage medium, which can realize the coordinated control of the air conditioning system and the oxygen compressor, and improve the service life of the oxygen compressor.
[0005] One technical solution adopted in this application is: providing an air conditioning oxygen production control method, the air conditioning oxygen production control method comprising: In response to the user-defined target oxygen concentration parameter, the system collects ambient oxygen concentration parameters. If the ambient oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, it collects the inlet environmental parameters and molecular sieve temperature parameters of the oxygen generator compressor. Based on the inlet environmental parameters and molecular sieve temperature parameters, the operating conditions of the oxygen generator compressor are determined, and the compressor is controlled to operate or remain shut down according to the determination result. In response to the operation of the oxygen generator compressor, the system collects the exhaust temperature parameters and oxygen output status parameters of the compressor. Based on the exhaust temperature parameters, the system implements frequency limiting or shutdown protection for the oxygen generator compressor. When frequency limiting or shutdown protection is not triggered or released, the operating frequency of the oxygen generator compressor is adjusted according to the oxygen output status parameters. If the ambient oxygen concentration parameter is detected to reach or exceed the target oxygen concentration parameter, the system controls the oxygen generator compressor to stop its current oxygen production operation.
[0006] Another technical solution adopted in this application is: providing an electronic device, the electronic device including: a memory for storing executable program code; and a processor for calling and running the executable program code from the memory, causing the electronic device to execute the air conditioning oxygen production control method as described above.
[0007] Another technical solution adopted in this application is: providing a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the air conditioning oxygen production control method as described above.
[0008] This application provides an air conditioning oxygen generation control method, which includes: detecting that the current oxygen concentration is lower than the target oxygen concentration; collecting environmental parameters at the inlet of the oxygen compressor and molecular sieve temperature parameters; determining the operating conditions of the oxygen compressor; and controlling the start of the oxygen compressor. During the operation of the oxygen compressor, collecting exhaust temperature and oxygen output status parameters; and implementing frequency limiting or shutdown protection based on the exhaust temperature. If the protection is not triggered, the operating frequency is dynamically adjusted based on the oxygen output status. By combining the spatial oxygen concentration, the inlet environmental conditions, the molecular sieve temperature, and the exhaust temperature for determination, and controlling the operation, frequency limiting, and shutdown protection of the oxygen compressor based on the determination results, the operation of the oxygen compressor is coordinated with the adjustment of environmental conditions, achieving collaborative control between the air conditioning system and the oxygen compressor, and improving the service life of the oxygen compressor. Attached Figure Description
[0009] Figure 1 This is a flowchart illustrating the first embodiment of the air conditioning oxygen generation control method of this application; Figure 2 This is a flowchart illustrating the second embodiment of the air conditioning oxygen generation control method of this application; Figure 3a This is an exemplary scenario diagram of the air conditioning oxygen generation control method of this application; Figure 3b This is another exemplary scenario diagram of the air conditioning oxygen generation control method of this application; Figure 4 This is a flowchart illustrating the third embodiment of the air conditioning oxygen generation control method of this application; Figure 5 This is an exemplary structural block diagram of the electronic device of the air conditioning oxygen generation control method of this application; Figure 6 This is an exemplary structural block diagram of a computer-readable storage medium for the air conditioning oxygen generation control method of this application. Detailed Implementation
[0010] The present application will now be described in detail with reference to the accompanying drawings and embodiments.
[0011] In some embodiments, please refer to Figure 1 , Figure 1 This is a schematic flowchart of the first embodiment of the air conditioning oxygen generation control method of this application. It should be noted that if substantially the same result is achieved, the method of this application is not necessarily identical. Figure 1 The illustrated process sequence is limited. For example... Figure 1As shown, the air conditioning oxygen production control method includes: S101 responds to the target oxygen concentration parameter set by the user and collects the space oxygen concentration parameter.
[0012] The target oxygen concentration parameter can be a user-defined value, a system preset value, or an external control command, obtained when the air conditioning system is turned on. It characterizes the desired oxygen concentration level in the current space and can be input via a control panel, remote control, or other human-machine interface unit. The space oxygen concentration parameter reflects the actual oxygen content in the current environment.
[0013] As an example, in practical applications such as home oxygen generation, in-vehicle oxygen generation, or medical auxiliary environments, users can set target oxygen concentration parameters using a control panel, remote control, or other human-machine interface units. After the air conditioning system responds to the user-set target oxygen concentration parameter, it collects the ambient oxygen concentration parameter in real time. When the air conditioning system detects that the ambient oxygen concentration is lower than the target oxygen concentration parameter, it determines that there is a need for oxygen generation and enters the oxygen generation preparation stage.
[0014] S102, the space oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, and the inlet environmental parameters of the oxygen generator compressor and the molecular sieve temperature parameter are collected.
[0015] The molecular sieve temperature parameter can be used to characterize the adsorption performance state of the molecular sieve within the oxygen generation module, such as the current adsorption activity state and loading level of the molecular sieve. In some embodiments, the molecular sieve temperature parameter can be obtained by a temperature detection element located at the molecular sieve cylinder, the outer wall of the molecular sieve container, the gas path near the molecular sieve, or other locations that can reflect the thermal state of the molecular sieve. It is understood that any temperature signal reflecting the current thermal state of the molecular sieve can be used as the molecular sieve temperature parameter in this embodiment.
[0016] The inlet environmental parameters can be environmental state parameters used to characterize the inlet of the oxygen compressor. In some embodiments, the inlet environmental parameters may include at least one of an inlet temperature parameter and an inlet relative humidity parameter. The inlet temperature parameter can be the temperature state of the air at the inlet of the oxygen compressor; the inlet relative humidity parameter can be the relative humidity parameter of the air at the inlet of the oxygen compressor.
[0017] S103 determines the operating conditions of the oxygen compressor based on the inlet environmental parameters and molecular sieve temperature parameters, and controls the oxygen compressor to operate or remain in a stopped state according to the determination results.
[0018] The operating conditions can be used to determine whether the oxygen compressor is allowed to operate under current conditions. Operating conditions can be determined solely by the inlet environmental parameters, or by a combination of the inlet environmental parameters and the molecular sieve temperature parameters.
[0019] As an example, when an oxygen replenishment requirement is detected in the current space, the system does not directly control the oxygen compressor to start immediately. Instead, it first determines whether the current operating conditions meet the oxygen production requirements based on the current environmental state of the oxygen production module and the thermal state of the molecular sieve, thereby enabling operation control of the oxygen compressor. This reduces the risk of the molecular sieve becoming damp, oxygen production efficiency decreasing, or malfunctioning, thus improving the reliability and service life of the oxygen production system.
[0020] In some implementations, the operating conditions can be set in relation to the air humidity at the intake. For example, different operating conditions can be set according to different humidity ranges of the relative humidity parameter at the intake, so that the oxygen generation module adopts different operating control strategies under different ambient humidity conditions.
[0021] In some implementations, when the relative humidity parameter at the air inlet meets the low humidity condition, it can be directly determined that the current condition meets the preset operating conditions, and the oxygen compressor can be controlled to operate.
[0022] In some implementations, when the relative humidity parameter at the air inlet does not meet the preset operating conditions, the operation can be determined by combining the temperature difference between the molecular sieve temperature parameter and the air inlet temperature parameter, thereby achieving joint operation control based on the air inlet environment state and the thermal state of the molecular sieve.
[0023] In some implementations, when the system lacks a humidity detection element or the humidity parameters are abnormally acquired, a preset default operation determination strategy can be adopted. For example, the oxygen compressor can be operated according to the operating conditions corresponding to higher humidity conditions to improve operational safety and stability under unknown humidity conditions. Alternatively, the corresponding operating conditions can be determined based on the equipment's preset environment type, historical operating data, or other environmental status information.
[0024] In some implementations, when it is determined that the current oxygen generation module does not meet the operating conditions, the air conditioning system can further enter air conditioning mode to improve the intake environment of the oxygen generation module. For example, the air conditioning system can be controlled to enter dehumidification mode to reduce the humidity level of the air entering the oxygen generation module; or the air conditioning system can be controlled to adjust the temperature of the intake environment to improve the current operating conditions of the oxygen generation module. Thus, after the intake environmental parameters and / or molecular sieve temperature parameters are subsequently detected to meet the preset operating conditions, the oxygen compressor is then controlled to start operation.
[0025] S104, in response to the operation of the oxygen compressor, collects the exhaust temperature parameters and oxygen output status parameters of the oxygen compressor.
[0026] Among them, the exhaust temperature parameter is used to characterize the thermal load state of the oxygen generator compressor during oxygen production operation, such as reflecting the current working intensity of the oxygen generator compressor and the load status of the oxygen production module. Therefore, by collecting the exhaust temperature parameter in real time, the thermal operating status of the oxygen generator compressor can be dynamically reflected. The oxygen output status parameter can be used to reflect the current oxygen production output status, such as the oxygen production effect and output capacity, and can include at least one of the oxygen concentration parameter and oxygen flow rate parameter.
[0027] S105, performs frequency limiting or shutdown protection on the oxygen compressor based on the exhaust temperature parameter, and adjusts the operating frequency of the oxygen compressor based on the oxygen output status parameter when the frequency limiting or shutdown protection is not triggered or released.
[0028] As an example, to ensure the oxygen compressor and molecular sieve system operate within a safe thermal range and optimize their operation within this range, a tiered decision-making approach can be used to implement frequency limiting or shutdown protection for the oxygen compressor based on exhaust temperature parameters. For instance, frequency reduction control is implemented when the exhaust temperature reaches a high threshold, and shutdown protection is implemented when it exceeds a limit threshold. When frequency limiting or shutdown protection is not triggered or lifted, the operating frequency of the oxygen compressor is adjusted based on the oxygen output status parameters. For example, when the oxygen output status parameters indicate insufficient oxygen output, the operating frequency is moderately increased; when the output is close to the demand level or the oxygen supply is sufficient, the operating frequency is reduced, thereby reducing the energy consumption and heat load of the oxygen compressor.
[0029] S106, if the space oxygen concentration parameter is detected to have reached or exceeded the target oxygen concentration parameter, control the oxygen compressor to stop the current oxygen production operation.
[0030] As an example, when the system detects that the oxygen concentration in the space has reached or exceeded the target oxygen concentration parameter, it indicates that the oxygen production demand has been met. At this time, the oxygen compressor is controlled to stop its current oxygen production operation and returns to standby mode. When the air conditioning system detects that the oxygen concentration in the space is again lower than the target oxygen concentration parameter, the air conditioning system can still re-enter the oxygen production operation process according to the above control logic, that is, return to execute steps S102 or S103 and thereafter.
[0031] This embodiment detects that the current oxygen concentration is lower than the target oxygen concentration, collects environmental parameters at the inlet of the oxygen generator compressor and molecular sieve temperature parameters, and determines the operating conditions of the oxygen generator compressor to control its start-up. During the operation of the oxygen generator compressor, exhaust temperature and oxygen output status parameters are collected, and frequency limiting or shutdown protection is implemented based on the exhaust temperature. If the protection is not triggered, the operating frequency is dynamically adjusted according to the oxygen output status. By combining the spatial oxygen concentration, inlet environmental conditions, molecular sieve temperature, and exhaust temperature for judgment, and controlling the operation, frequency limiting, and shutdown protection of the oxygen generator compressor based on the judgment results, the operation of the oxygen generator compressor is coordinated with the adjustment of environmental conditions, realizing the collaborative control of the air conditioning system and the oxygen generator compressor, and extending the service life of the oxygen generator compressor.
[0032] Please see Figure 2 , Figure 2 This is a schematic flowchart of the second embodiment of the air conditioning oxygen generation control method of this application. The method includes the following steps: S201 responds to the user-defined concentration level and the target oxygen concentration parameter for that concentration level, and collects the space oxygen concentration parameter.
[0033] As an example, users can set concentration levels using a control panel, remote control, or other human-machine interface units. Different concentration levels have their own corresponding target oxygen concentration parameters. The air conditioning system then receives the user-set concentration level command and retrieves the corresponding target oxygen concentration parameter from a pre-stored level parameter table. For example, multiple levels can be pre-defined in the air conditioning system's storage module: the first level corresponds to the first target oxygen concentration parameter; the second level corresponds to the second target oxygen concentration parameter; and the third level corresponds to the third target oxygen concentration parameter. This allows for the establishment of corresponding oxygen concentration control ranges for different concentration levels, and the start / stop mode of the oxygen compressor can be controlled collaboratively through range grading and shutdown protection. Simultaneously, the air conditioning system can collect and periodically update the ambient oxygen concentration parameters using its oxygen concentration sensor.
[0034] S202, the space oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, and the inlet environmental parameters of the oxygen generator compressor and the molecular sieve temperature parameter are collected.
[0035] S203 matches the relative humidity parameters at the air intake end with multiple preset humidity ranges.
[0036] The process involves pre-dividing humidity ranges based on their values and arranging them into an ordered set of intervals from low to high humidity. For example, the relative humidity of the inlet air can be divided into multiple continuous intervals, such as low humidity, medium humidity, and high humidity intervals. Each humidity interval corresponds to a temperature difference threshold, which characterizes the required difference between the molecular sieve temperature and the inlet air temperature. The temperature difference thresholds increase in order of humidity intervals; that is, the higher the humidity, the larger the corresponding temperature difference threshold. In the ordered set of intervals, the first humidity interval is the lowest humidity interval, and its corresponding temperature difference threshold is the minimum among all temperature difference thresholds. This reduces the risk of the molecular sieve prematurely reaching saturation in high humidity environments.
[0037] S204 controls the operation of the oxygen compressor when the relative humidity parameter at the intake end is in the first humidity range.
[0038] The first humidity range can be a low humidity range, such as the air during the dry season. When the relative humidity parameter at the inlet is within the first humidity range, it indicates that the moisture content in the gas is low, which has little impact on the molecular sieve adsorption process. In this case, it is not necessary to detect the molecular sieve temperature parameter; the oxygen compressor can be controlled to operate normally based on the relative humidity parameter at the inlet. This achieves a direct operating path in low-humidity environments, improving the operating efficiency of the oxygen compressor.
[0039] As an example, please refer to Figure 3a When the relative humidity parameter at the air inlet is detected to be less than 35%, it is in the first humidity range, indicating that the air at the air inlet of the oxygen compressor is in a low humidity state. At this time, the air dew point temperature is low, and there is basically no risk of water vapor condensation in the molecular sieve within the normal operating temperature range. Therefore, the oxygen compressor can be controlled to run directly.
[0040] S205: When the relative humidity parameter at the inlet is in any target humidity range other than the first humidity range, and the temperature difference between the molecular sieve temperature parameter and the inlet temperature parameter is greater than the temperature difference threshold corresponding to the target humidity range, the oxygen compressor is controlled to operate.
[0041] As an example, please refer to Figure 3bConsidering that in high humidity conditions, the air contains a large amount of water vapor, making molecular sieves more prone to adsorption saturation, directly starting the oxygen generation operation could easily lead to a decrease in oxygen production efficiency or even damage to the molecular sieve. Therefore, by calculating the temperature difference between the molecular sieve temperature parameters and the inlet temperature parameters, we can determine whether the molecular sieve has sufficient adsorption capacity, and thus determine whether the oxygen compressor should operate. When the temperature difference is greater than the temperature difference threshold for the corresponding target humidity range, it indicates that the molecular sieve is in a relatively dry state, allowing the oxygen compressor to start operating. By setting corresponding temperature difference thresholds for different humidity ranges, the starting decision of the oxygen compressor can be adapted to various complex environmental conditions, improving the safety of the molecular sieve while enhancing the availability and adaptability of the oxygen generation module in high humidity environments.
[0042] In some embodiments, when the temperature difference is less than or equal to the temperature difference threshold corresponding to the target humidity range, it indicates that the current ambient humidity is high or the molecular sieve temperature is relatively insufficient, and the conditions suitable for oxygen production have not yet been met. Keeping the oxygen compressor in a stopped state can reduce the risk of starting operation under unsuitable conditions.
[0043] In some embodiments, S205 may include: controlling the oxygen compressor to operate when the relative humidity parameter at the air inlet is in a preset second humidity range and the temperature difference is greater than the first temperature difference threshold corresponding to the second humidity range.
[0044] As an example, suppose the second humidity range is defined as the relative humidity parameter at the air inlet being between 35% and 60%, and the first temperature difference threshold corresponding to the second humidity range is 11°C. When the relative humidity parameter at the air inlet is detected to be in the moderate humidity range of 35% to 60%, it indicates that the water vapor content in the air has increased, and the risk of condensation in the molecular sieve has increased. Simultaneously, when the difference between the molecular sieve temperature parameter and the air inlet temperature parameter is detected to be greater than 11°C, it indicates that the molecular sieve has sufficient thermal margin, and its operating temperature is higher than the air dew point temperature under the corresponding humidity conditions, thus controlling the operation of the oxygen generation module. When the difference between the molecular sieve temperature parameter and the air inlet temperature parameter is detected to be less than or equal to 11°C, it is determined that there is a risk of condensation under the current environmental conditions, and the oxygen generation module is not allowed to be started; instead, it enters a waiting state.
[0045] In some other embodiments, S205 may include: controlling the oxygen compressor to operate when the relative humidity parameter at the air inlet is in a preset third humidity range and the temperature difference is greater than the second temperature difference threshold corresponding to the third humidity range.
[0046] As an example, let the third humidity range be defined as an intake relative humidity parameter between 60% and 80%, and the corresponding second temperature difference threshold is 17°C. When the intake relative humidity parameter is in the higher humidity range of 60% to 80%, it indicates that the air dew point temperature has further increased. Simultaneously, when the difference between the molecular sieve temperature parameter and the intake temperature parameter is detected to be greater than 17°C, the oxygen generation module is activated; when the difference is detected to be less than or equal to 17°C, the oxygen generation module is not activated. This reduces the risk of condensation or deterioration of the molecular sieve's adsorption performance in high humidity environments.
[0047] In some other embodiments, S205 may include: controlling the oxygen compressor to operate when the relative humidity parameter at the air inlet is in a preset fourth humidity range and the temperature difference is greater than the third temperature difference threshold corresponding to the fourth humidity range.
[0048] As an example, let's assume the fourth humidity range is defined as the relative humidity parameter at the air inlet being between 80% and 100%, and the corresponding third temperature difference threshold is 22℃. When the relative humidity parameter at the air inlet is detected to be in the extremely high humidity range of 80% to 100%, or when the equipment is not equipped with a humidity sensor and cannot accurately obtain the humidity parameter, the system will operate under the most unfavorable humidity condition. This means that the current air dew point is close to or even equal to the ambient temperature, resulting in the highest risk of molecular sieve condensation. Simultaneously, when the difference between the molecular sieve temperature parameter and the air inlet temperature parameter is detected to be greater than 22℃, or when the difference is detected to be less than or equal to 22℃, the oxygen generation module will not be allowed to start. This reduces the risk of molecular sieve condensation or adsorption performance degradation in high humidity environments.
[0049] The first, second, third, and fourth humidity ranges form an ordered set of ranges from low to high. Of course, those skilled in the art will understand that the humidity ranges and temperature difference thresholds described above are merely examples, and in practical applications, they can be set according to the oxygen compressor structure, molecular sieve material characteristics, target application environment, and overall machine control requirements.
[0050] S206, in response to the operation of the oxygen compressor, collects the exhaust temperature parameters and oxygen output status parameters of the oxygen compressor.
[0051] S207 compares the exhaust temperature parameters with multiple preset exhaust temperature thresholds.
[0052] This embodiment takes into account that when the exhaust temperature parameter of the oxygen generator compressor is too high, it indicates that the oxygen generator compressor is under high load or high heat. If the current operating frequency is maintained, it may lead to a decrease in the efficiency of the oxygen generator compressor, or even affect the stable working state of the molecular sieve. Therefore, the exhaust temperature parameter is compared with a number of preset exhaust temperature thresholds, and the oxygen generator compressor is subjected to graded frequency limiting control or shutdown protection according to the exhaust temperature threshold range in which the exhaust temperature parameter falls.
[0053] S208, in response to the exhaust temperature parameter falling into the range of different exhaust temperature thresholds, performs corresponding level of frequency limiting control or shutdown protection on the oxygen generator compressor.
[0054] As an example, when the exhaust temperature parameter is detected to fall within different exhaust temperature threshold ranges, the air conditioning system performs graded frequency limiting control or shutdown protection according to the corresponding temperature level. For instance, when the exhaust temperature is in the medium temperature range, the frequency of the oxygen generator compressor is limited, causing the compressor to gradually reduce its operating load. When the exhaust temperature rises into the high temperature range, the compressor frequency is reduced according to a preset reduction rate, thus decreasing the compressor's power. When the exhaust temperature reaches the highest temperature threshold, the compressor shutdown protection is triggered, reducing the risk of overheating. Therefore, based on the range of exhaust temperature parameters falling within the exhaust temperature thresholds, frequency limiting control or shutdown protection is preferentially implemented on the oxygen generator compressor, reducing the exhaust temperature parameter to below the range of multiple exhaust temperature parameter thresholds, thereby protecting the thermal safety of the oxygen generator compressor.
[0055] As an example, a first exhaust temperature threshold, a second exhaust temperature threshold, a third exhaust temperature threshold, and a fourth exhaust temperature threshold can be set, with each threshold decreasing sequentially from highest to lowest temperature. For example, the first exhaust temperature threshold could be set to 90°C, the second to 85°C, the third to 80°C, and the fourth to 75°C. It is understood that these exhaust temperature thresholds can be adjusted in practical applications based on the oxygen compressor model, heat dissipation structure, and system calibration results, and are not limited to specific values.
[0056] In some embodiments, S208 may include: when the exhaust temperature parameter is greater than or equal to a first exhaust temperature threshold, indicating that the oxygen compressor is in a risky state of overheating, the oxygen compressor can be stopped and the exhaust protection state can be entered, for example, by displaying an exhaust protection indicator, which can reduce the risk of component damage caused by continuous high-temperature operation of the oxygen compressor.
[0057] In some embodiments, S208 may include: when the exhaust temperature parameter is between a second exhaust temperature threshold and a first exhaust temperature threshold, it indicates that the oxygen compressor is in a high heat load range, and therefore the operating frequency of the oxygen compressor is controlled to decrease to the first operating frequency and then maintained at a first frequency reduction rate. For example, the frequency can be gradually reduced at a rate of 2 Hz / s, and a minimum operating frequency, such as 30 Hz, can be set to reduce the power of the oxygen compressor and suppress further rise in exhaust temperature.
[0058] In some embodiments, S208 may include: when the exhaust temperature parameter is between a third exhaust temperature threshold and a second exhaust temperature threshold, it indicates that the oxygen compressor is in a medium heat load range, and therefore the operating frequency of the oxygen compressor can be reduced by a preset second frequency reduction rate. At this time, the operating frequency of the oxygen compressor is reduced to a first operating frequency and maintained at the second frequency reduction rate. For example, the frequency reduction adjustment can be performed at a rate of 1 Hz / s, and a minimum operating frequency, such as 30 Hz, can be set.
[0059] In some embodiments, S208 may include: when the exhaust temperature parameter is between the fourth exhaust temperature threshold and the third exhaust temperature threshold, the oxygen compressor is in a controllable thermal state range, and therefore maintains operation after being reduced to the first operating frequency or maintains the current operating frequency, thereby reducing the risk of the exhaust temperature entering a higher risk range.
[0060] The first, second, third, and fourth exhaust temperature thresholds decrease sequentially. Based on the different ranges of exhaust temperature, the operating status and frequency regulation strategy of the oxygen generator compressor are controlled in stages.
[0061] The reason why the first frequency reduction rate is greater than the second frequency reduction rate is that when the exhaust temperature is high and close to the high temperature protection range, it is necessary to reduce the compressor load more quickly to suppress the further rise in exhaust temperature and thus avoid entering the shutdown protection state. In the range where the exhaust temperature is relatively low, the risk of temperature rise is relatively small, and a slower frequency reduction rate can achieve stable adjustment, which can reduce the impact of frequent and large-scale adjustments on system stability and compressor operating conditions.
[0062] S209, in response to the exhaust temperature parameter being lower than the minimum exhaust temperature threshold, adjusts the operating frequency of the oxygen generator compressor according to the oxygen output status parameter.
[0063] The minimum exhaust temperature threshold can be the aforementioned fourth exhaust temperature threshold. This means that when the exhaust temperature parameter is below the fourth exhaust temperature threshold, the oxygen compressor is allowed to operate normally, and its operating frequency is adjusted according to the oxygen output status parameters. The oxygen output status parameters can include oxygen concentration parameters, oxygen flow rate parameters, etc., to reflect the current oxygen production load demand.
[0064] When the exhaust temperature parameter is below the minimum exhaust temperature threshold, it indicates that the oxygen generator compressor is operating within its permissible thermal range. Simultaneously, to ensure stable operation of the oxygen generation system within its rated oxygen production capacity while also meeting oxygen concentration requirements, the operating frequency of the oxygen generator compressor can be adjusted based on the output oxygen status parameters, matching the oxygen production capacity with actual demand. Therefore, through a coordinated adjustment method based on output oxygen flow rate and output oxygen concentration parameters, the oxygen flow rate can be stabilized within the target range while ensuring the oxygen concentration meets the standards, thus achieving a balance between oxygen production performance and the operational stability of the oxygen generator compressor.
[0065] In some embodiments, for an oxygen generator with a rated oxygen production capacity of 5 L / min, the oxygen output flow rate parameter can be allowed to fluctuate between a second flow rate threshold and a first flow rate threshold. For example, the second flow rate threshold can be set to 4.7 L / min, and the first flow rate threshold to 5.3 L / min. Simultaneously, the concentration threshold can be set to 92%. It should be noted that the above values are merely examples and can be adjusted based on system calibration results in actual applications, and are not limited to specific values.
[0066] As a specific exemplary implementation, the step of adjusting the operating frequency of the oxygen generator compressor according to the oxygen output status parameters may include: when the oxygen output flow rate parameter is greater than a preset first flow rate threshold and the oxygen output concentration parameter is greater than or equal to a preset concentration threshold, it indicates that the current oxygen production capacity of the system is too high, and the oxygen generator compressor may be operating under a high load. At this time, in order to reduce system energy consumption and suppress excessive oxygen production, the air conditioning system controls the operating frequency of the oxygen generator compressor to decrease to a preset second operating frequency and maintain it at a preset third frequency reduction rate. For example, the frequency reduction can be performed at a rate of 1 Hz / min, and a minimum operating frequency can also be set, such as approximately 45 Hz.
[0067] As another specific exemplary implementation, the step of adjusting the operating frequency of the oxygen generator compressor according to the oxygen output status parameters may include: when the oxygen output flow rate parameter is less than a second flow rate threshold and the oxygen output concentration parameter is greater than or equal to a concentration threshold, it indicates that the current oxygen output flow rate is insufficient but the oxygen purity meets the requirements. Therefore, the operating frequency of the oxygen generator compressor is controlled to increase to a preset third operating frequency at a preset rate of increase and then maintained. For example, it can be adjusted at 1 Hz / min to control the operating frequency of the oxygen generator compressor to increase the intake air volume of the oxygen generator compressor, thereby increasing the oxygen output. A maximum operating frequency can be set, for example, about 50 Hz. The second operating frequency is less than the third operating frequency.
[0068] As another specific exemplary implementation, the step of adjusting the operating frequency of the oxygen generator compressor according to the oxygen output status parameters may include: when the oxygen output flow rate parameter is between a first flow rate threshold and a second flow rate threshold, and the oxygen output concentration parameter is greater than or equal to the concentration threshold, it indicates that the current oxygen output is in a stable range. Keeping the operating frequency of the oxygen generator compressor unchanged can reduce system fluctuations caused by frequent adjustments.
[0069] S210 determines the oxygen concentration control range corresponding to the target oxygen concentration parameter for different concentration levels.
[0070] As an example, the air conditioning system can pre-generate upper and lower limits based on the target oxygen concentration parameter and a preset range offset. For instance, the upper limit can be the sum of the target oxygen concentration parameter and a first offset; the lower limit can be the difference between the target oxygen concentration parameter and a second offset. The first and second offsets can be fixed values or preset to different values depending on the desired setting. This forms a control range around the target oxygen concentration parameter, serving as a buffer zone for the target oxygen concentration parameter.
[0071] S211: When the space oxygen concentration parameter is greater than or equal to the upper limit of the oxygen concentration control range, control the oxygen compressor to stop the current oxygen production operation.
[0072] The upper limit can be used as a trigger threshold to stop the oxygen compressor from producing oxygen.
[0073] As an example, the air conditioning system can compare the real-time collected space oxygen concentration parameter with the upper limit of the oxygen concentration control range. When the space oxygen concentration parameter is greater than or equal to the upper limit, the air conditioning system generates a stop oxygen production signal and sends it to the oxygen compressor drive unit, causing the oxygen compressor to stop its current oxygen production operation. This can reduce the number of times the stop oxygen production signal is repeatedly triggered due to small fluctuations when the space oxygen concentration is close to the target value.
[0074] In some embodiments, step S106 or S211 may be followed by: detecting that the space oxygen concentration parameter is lower than the target oxygen concentration parameter, returning to perform the collection of the intake environmental parameters of the oxygen generating compressor and the molecular sieve temperature parameter, and subsequent steps.
[0075] As an example, when the ambient oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter again, or when the ambient oxygen concentration parameter is less than the lower limit of the oxygen concentration control range, and the oxygen compressor meets the preset shutdown protection time condition, the inlet environmental parameters and molecular sieve temperature parameters are re-collected. Based on these parameters, the operating conditions of the oxygen compressor are determined. Only when the preset operating conditions are met is the oxygen compressor started. By re-determining the inlet environmental parameters and molecular sieve temperature parameters before restarting the compressor, the risk of directly starting the compressor under high humidity, high temperature, or before the molecular sieve temperature has recovered can be reduced, thereby reducing the operational risks caused by frequent start-stop or start-up under adverse conditions.
[0076] In some other embodiments, step S106 or S211 may be followed by: detecting that the space oxygen concentration parameter is lower than the target oxygen concentration parameter, controlling the oxygen compressor to run again, and returning to the execution of the response to the oxygen compressor running, collecting the exhaust temperature parameter and oxygen output status parameter of the oxygen compressor, and subsequent steps.
[0077] As an example, the exhaust temperature protection and frequency adjustment mechanism based on oxygen output status parameters in this embodiment can avoid the risk of compressor overheating and limit drastic fluctuations in the load at the intake end, thereby reducing pressure and temperature fluctuations at the oxygen compressor intake end. Therefore, when the space oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, or when the space oxygen concentration parameter is less than the lower limit of the oxygen concentration control range, and the oxygen compressor meets the preset shutdown protection time condition, it is not necessary to re-detect. The oxygen compressor can be restarted and enter the control flow under running status, collecting exhaust temperature parameters and oxygen output status parameters, and executing frequency limiting or shutdown protection based on the exhaust temperature parameters. At the same time, adjusting the compressor operating frequency according to the oxygen output status parameters can reduce the judgment steps in the restart process, thereby shortening the system response time and enabling the space oxygen concentration to recover to the target level more quickly.
[0078] In some embodiments, detecting that the space oxygen concentration parameter is lower than the target oxygen concentration parameter may include: detecting that the space oxygen concentration parameter is less than the lower limit of the oxygen concentration control range, and that the oxygen compressor meets the preset shutdown protection time condition.
[0079] As an example, when the air conditioning system controls the oxygen compressor to stop producing oxygen, it can activate a timing module to count the downtime. When the ambient oxygen concentration parameter is lower than the lower limit of the oxygen concentration control range, the current stop time is obtained to determine the downtime. Specifically, if the current downtime is greater than or equal to a preset time threshold, it indicates that the oxygen compressor meets the downtime protection condition. That is, when the ambient oxygen concentration parameter is lower than the lower limit of the oxygen concentration control range and the oxygen compressor meets the preset downtime protection condition, the air conditioning system sends a start control signal to the oxygen compressor to restart it.
[0080] In some embodiments, the air conditioning system may include an oxygen compressor, an oxygen concentration sensor, a temperature and humidity sensor, and an exhaust temperature sensor. As shown in Figure 3, when the device enters oxygen generation mode, the operating status of the oxygen compressor can be controlled by environmental parameters, ambient oxygen concentration parameters, and exhaust temperature parameters of the oxygen compressor.
[0081] As an example, the air conditioning system responds to the concentration level set by the user, determines the corresponding target oxygen concentration parameter, and collects the space oxygen concentration parameter in real time. For example, the user can select different concentration levels via remote control or device panel, with different levels corresponding to different target oxygen concentration control ranges.
[0082] Then, when the air conditioning system detects that the space oxygen concentration parameter is lower than the target oxygen concentration parameter, it enters the oxygen production preparation stage, collects the inlet temperature parameter of the oxygen compressor, including the inlet temperature parameter and the inlet relative humidity parameter, and collects the molecular sieve temperature parameter characterizing the molecular sieve adsorption state.
[0083] Then, the relative humidity parameter at the inlet is matched with multiple preset humidity ranges. Each humidity range is divided according to an increasing humidity level and corresponds to a different temperature difference threshold, with the temperature difference threshold increasing as the humidity level increases. Specifically, when the relative humidity parameter at the inlet is in a low humidity range, the oxygen compressor is started based on the inlet temperature parameter. When the relative humidity parameter at the inlet is in a high humidity range, the operation of the oxygen compressor is determined by combining the temperature difference between the molecular sieve temperature parameter and the inlet temperature parameter.
[0084] During the operation of the oxygen compressor, exhaust temperature protection control is implemented. Specifically, the exhaust temperature parameters of the oxygen compressor are collected in real time and compared with multiple preset exhaust temperature thresholds. When the exhaust temperature parameters are within different threshold ranges, different levels of operating frequency control are implemented for the oxygen compressor; when the exhaust temperature parameters reach the highest exhaust temperature threshold, the oxygen compressor is controlled to stop operating.
[0085] When the exhaust temperature parameter is lower than the minimum exhaust temperature threshold, the oxygen output adjustment stage begins. Oxygen flow rate and concentration parameters are collected, and the operating frequency of the oxygen compressor is adjusted based on these parameters. For example, when the oxygen flow rate is greater than a preset first flow rate threshold and the oxygen concentration meets a preset concentration condition, the operating frequency of the oxygen compressor is reduced; when the oxygen flow rate is less than a preset second flow rate threshold, the operating frequency is increased; and when the oxygen flow rate is between the first and second flow rate thresholds, the operating frequency remains unchanged.
[0086] When the ambient oxygen concentration parameter reaches or exceeds the target oxygen concentration parameter, the corresponding oxygen concentration control range is determined according to the concentration level. When the ambient oxygen concentration parameter reaches the upper limit of the control range, the oxygen compressor is controlled to stop running; when the ambient oxygen concentration parameter is lower than the lower limit of the control range and the preset shutdown protection time condition is met, the oxygen compressor is controlled to restart, thus forming a start-stop control mechanism based on concentration range.
[0087] Therefore, this embodiment improves the operational stability and service life of the oxygen compressor by using multi-parameter coordinated control based on inlet temperature parameters, molecular sieve state parameters, and oxygen output state parameters, while ensuring oxygen production efficiency.
[0088] In some embodiments, since the relative humidity parameter at the inlet end affects the adsorption performance of the molecular sieve, the air conditioning system prioritizes determining the oxygen production operating conditions based on the inlet relative humidity parameter. However, in some application scenarios, the air conditioning system may not be equipped with a humidity sensor, or the humidity sensor may malfunction, resulting in the inability to obtain a valid inlet relative humidity parameter. In this case, if the oxygen compressor is still controlled according to a fixed operating strategy, the molecular sieve may operate with insufficient adsorption capacity, affecting the stability of the oxygen production concentration.
[0089] Therefore, when the relative humidity parameter at the inlet is unavailable, the temperature difference between the molecular sieve temperature parameter and the inlet temperature parameter can be used as a fallback control logic for humidity determination. Please refer to [link / reference]. Figure 4 , Figure 4 This is a flowchart illustrating the third embodiment of the air conditioning oxygen generation control method of this application. It should be noted that if substantially the same result is achieved, the method of this application is not necessarily identical. Figure 4 The illustrated process sequence is limited. For example... Figure 4 As shown, the air conditioning oxygen production control method includes: S101 responds to the target oxygen concentration parameter set by the user and collects the space oxygen concentration parameter.
[0090] S102, the space oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, and the inlet environmental parameters of the oxygen generator compressor and the molecular sieve temperature parameter are collected.
[0091] S401, obtain the temperature difference between the molecular sieve temperature parameter and the inlet temperature parameter, and the preset fourth temperature difference threshold.
[0092] The fourth temperature difference threshold is used to make a substitute judgment on the oxygen production operation conditions when a gas humidity sensor is not configured or the relative humidity parameter at the air inlet cannot be obtained.
[0093] As an example, in some implementation scenarios, the air conditioning system may not have a humidity sensor, or the humidity detection data may be abnormal. In such cases, it is difficult to make operational judgments based on the relative humidity parameter at the air inlet. Furthermore, because molecular sieves exhibit significant thermal characteristics during adsorption, when the molecular sieve is dry and has good adsorption capacity, its temperature parameter will be higher than the air inlet temperature parameter of the oxygen generator compressor, forming a stable temperature difference. When the molecular sieve becomes damp or its adsorption capacity decreases, this temperature difference will decrease. Therefore, by comparing the temperature difference with a preset fourth temperature difference threshold, the adsorption state of the molecular sieve can be indirectly reflected.
[0094] In some embodiments, the fourth temperature difference threshold may be the same as the third temperature difference threshold described above.
[0095] S402 controls the oxygen compressor to operate when the temperature difference exceeds the fourth temperature difference threshold.
[0096] As an example, when the temperature difference is greater than the fourth temperature difference threshold, it indicates that the molecular sieve temperature has a sufficient temperature difference relative to the inlet air temperature, meaning that the molecular sieve is in an effective adsorption working state and can maintain normal oxygen production efficiency. At this time, the compressor is allowed to enter the oxygen production operation mode.
[0097] S403 controls the oxygen compressor to remain shut down when the temperature difference is less than or equal to the fourth temperature difference threshold.
[0098] As an example, when the temperature difference is less than or equal to the fourth temperature difference threshold, the oxygen compressor is controlled to limit its operation. For example, the compressor can be restricted from starting or entering a standby state, reducing the risk of directly operating oxygen production when the molecular sieve adsorption capacity is insufficient, thereby preventing insufficient oxygen concentration or abnormal system load.
[0099] S104, in response to the operation of the oxygen compressor, collects the exhaust temperature parameters and oxygen output status parameters of the oxygen compressor.
[0100] S105, performs frequency limiting or shutdown protection on the oxygen compressor based on the exhaust temperature parameter, and adjusts the operating frequency of the oxygen compressor based on the oxygen output status parameter when the frequency limiting or shutdown protection is not triggered or released.
[0101] S106, if the space oxygen concentration parameter is detected to have reached or exceeded the target oxygen concentration parameter, control the oxygen compressor to stop the current oxygen production operation.
[0102] This embodiment utilizes the thermal state of molecular sieves to replace humidity detection, enabling the determination of operating conditions while reducing the number of sensors required. This reduces system hardware costs and improves the robustness of the control strategy.
[0103] Please see Figure 5 , Figure 5 This is an exemplary structural block diagram of the electronic device used in the air conditioning oxygen generation control method of this application. (See diagram below.) Figure 5 As shown, the electronic device 500 of this application may include a processor 501 and a memory 502, wherein the processor 501 and the memory 502 communicate via a bus. The memory 502 stores program instructions for air conditioning oxygen production control. When the program instructions are executed by the processor 501, the processor performs the aforementioned related method steps to implement an air conditioning oxygen production control method in the above embodiments.
[0104] Please see Figure 6 , Figure 6 This is an exemplary structural block diagram of a computer-readable storage medium for the air conditioning oxygen generation control method of this application. Figure 6 As shown, the computer-readable storage medium 600 stores a computer program 601. When the computer program 601 is run by a processor on a computer, it causes the computer to perform the aforementioned method steps to implement an air conditioning oxygen production control method in the above embodiments.
[0105] The above scheme detects that the current oxygen concentration is lower than the target oxygen concentration, collects environmental parameters at the inlet of the oxygen generator compressor and molecular sieve temperature parameters, and determines the operating conditions of the oxygen generator compressor to control its start-up. During the operation of the oxygen generator compressor, it collects exhaust temperature and oxygen output status parameters, and implements frequency limiting or shutdown protection based on the exhaust temperature. If the protection is not triggered, the operating frequency is dynamically adjusted according to the oxygen output status. By combining the spatial oxygen concentration, inlet environmental conditions, molecular sieve temperature, and exhaust temperature for judgment, and controlling the operation, frequency limiting, and shutdown protection of the oxygen generator compressor based on the judgment results, the operation of the oxygen generator compressor is coordinated with the adjustment of environmental conditions, realizing the collaborative control of the air conditioning system and the oxygen generator compressor, and extending the service life of the oxygen generator compressor.
[0106] In the several embodiments provided in this application, it should be understood that the disclosed methods, electronic devices, and storage media can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms.
[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.
[0108] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the air conditioning oxygen generation control method described in various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
[0110] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A method for controlling oxygen production in an air-conditioned system, characterized in that, The air conditioning oxygen production control method includes: It responds to the target oxygen concentration parameter set by the user and collects the space oxygen concentration parameter; If the space oxygen concentration parameter is detected to be lower than the target oxygen concentration parameter, the inlet environmental parameters of the oxygen generator compressor and the molecular sieve temperature parameters are collected. Based on the inlet environmental parameters and the molecular sieve temperature parameters, the operating conditions of the oxygen compressor are determined, and the oxygen compressor is controlled to operate or remain in a stopped state according to the determination result. In response to the operation of the oxygen compressor, the exhaust temperature parameters and oxygen output status parameters of the oxygen compressor are collected; The oxygen compressor is subjected to frequency limiting or shutdown protection based on the exhaust temperature parameter. When the frequency limiting or shutdown protection is not triggered or released, the operating frequency of the oxygen compressor is adjusted according to the oxygen output status parameter. If the oxygen concentration parameter in the space is detected to reach or exceed the target oxygen concentration parameter, the oxygen compressor is controlled to stop its current oxygen production operation.
2. The air conditioning oxygen production control method according to claim 1, characterized in that, The inlet environmental parameters include inlet relative humidity and inlet temperature parameters; the step of determining the operating conditions of the oxygen compressor based on the inlet environmental parameters and the molecular sieve temperature parameters, and controlling the oxygen compressor to operate or remain in a stopped state according to the determination result, includes: The relative humidity parameter at the air intake end is matched with multiple preset humidity ranges; wherein, each humidity range is pre-divided according to the humidity value range and forms an ordered set of ranges from low to high humidity; each humidity range corresponds to a temperature difference threshold and is in ascending order relative to the humidity ranges, with the first humidity range being the lowest humidity range in the ordered set of ranges. When the relative humidity parameter at the air inlet is within the first humidity range, the oxygen compressor is controlled to operate. When the relative humidity parameter at the air inlet is in any target humidity range other than the first humidity range, and the temperature difference between the molecular sieve temperature parameter and the air inlet temperature parameter is greater than the temperature difference threshold corresponding to the target humidity range, the oxygen compressor is controlled to operate. When the temperature difference is less than or equal to the temperature difference threshold corresponding to the target humidity range, the oxygen compressor is controlled to remain in a stopped state.
3. The air conditioning oxygen production control method according to claim 2, characterized in that, When the relative humidity parameter at the air inlet is within any target humidity range other than the first humidity range, and the temperature difference between the molecular sieve temperature parameter and the air inlet temperature parameter is greater than the temperature difference threshold corresponding to the target humidity range, controlling the oxygen compressor to operate includes: When the relative humidity parameter at the air inlet is within a preset second humidity range, and the temperature difference is greater than the first temperature difference threshold corresponding to the second humidity range, the oxygen compressor is controlled to operate. When the relative humidity parameter at the air inlet is within a preset third humidity range, and the temperature difference is greater than the second temperature difference threshold corresponding to the third humidity range, the oxygen compressor is controlled to operate. When the relative humidity parameter at the air inlet is within a preset fourth humidity range, and the temperature difference is greater than the third temperature difference threshold corresponding to the fourth humidity range, the oxygen compressor is controlled to operate. The first humidity range, the second humidity range, the third humidity range, and the fourth humidity range form an ordered set of ranges from low to high.
4. The air conditioning oxygen production control method according to claim 1, characterized in that, The step of determining the operating conditions of the oxygen generator compressor based on the inlet environmental parameters and the molecular sieve temperature parameters, and controlling the oxygen generator compressor to operate or remain in a stopped state according to the determination result, includes: The temperature difference between the molecular sieve temperature parameter and the inlet temperature parameter is obtained, as well as a preset fourth temperature difference threshold. When the temperature difference is greater than the fourth temperature difference threshold, the oxygen compressor is controlled to operate; When the temperature difference is less than or equal to the fourth temperature difference threshold, the oxygen compressor is controlled to remain in a stopped state.
5. The air conditioning oxygen production control method according to claim 1, characterized in that, The step of implementing frequency limiting or shutdown protection for the oxygen compressor based on the exhaust temperature parameter, and adjusting the operating frequency of the oxygen compressor based on the oxygen output status parameter when the frequency limiting or shutdown protection is not triggered or released, includes: The exhaust temperature parameters are compared with a plurality of preset exhaust temperature thresholds; In response to the exhaust temperature parameter falling into a range of different exhaust temperature thresholds, the oxygen compressor is subjected to a corresponding level of frequency limiting control or shutdown protection. In response to the exhaust temperature parameter being lower than the minimum exhaust temperature threshold, the operating frequency of the oxygen generator compressor is adjusted according to the oxygen output status parameter.
6. The air conditioning oxygen production control method according to claim 5, characterized in that, The response to the exhaust temperature parameter falling within a range of different exhaust temperature thresholds, performing corresponding level frequency limiting control or shutdown protection on the oxygen compressor, includes: When the exhaust temperature parameter is greater than or equal to the first exhaust temperature threshold, the oxygen compressor is controlled to stop running and enter the exhaust protection state. When the exhaust temperature parameter is between the second exhaust temperature threshold and the first exhaust temperature threshold, the operating frequency of the oxygen compressor is controlled to be reduced to the first operating frequency and then maintained at the first frequency reduction rate. When the exhaust temperature parameter is between the third exhaust temperature threshold and the second exhaust temperature threshold, the operating frequency of the oxygen compressor is reduced to the first operating frequency and then maintained at the second frequency reduction rate. When the exhaust temperature parameter is between the fourth exhaust temperature threshold and the third exhaust temperature threshold, the operating frequency of the oxygen compressor is controlled to be reduced to the first operating frequency and then kept running or kept at the current operating frequency. Wherein, the first exhaust temperature threshold, the second exhaust temperature threshold, the third exhaust temperature threshold, and the fourth exhaust temperature threshold decrease sequentially; the first frequency reduction rate is greater than the second frequency reduction rate.
7. The air conditioning oxygen production control method according to claim 5, characterized in that, The oxygen output status parameters include oxygen output flow rate parameters and oxygen output concentration parameters; adjusting the operating frequency of the oxygen generator compressor according to the oxygen output status parameters includes: When the oxygen output flow rate parameter is greater than a preset first flow rate threshold and the oxygen output concentration parameter is greater than or equal to a preset concentration threshold, the operating frequency of the oxygen compressor is reduced to a preset second operating frequency and maintained at a preset third frequency reduction rate. When the oxygen output flow rate parameter is less than a preset second flow rate threshold and the oxygen output concentration parameter is greater than or equal to the concentration threshold, the operating frequency of the oxygen generator compressor is controlled to increase to a preset third operating frequency and then maintained at a preset frequency increase rate; wherein, the first flow rate threshold is greater than the second flow rate threshold and the second operating frequency is less than the third operating frequency; When the oxygen output flow rate parameter is between the first flow rate threshold and the second flow rate threshold, and the oxygen output concentration parameter is greater than or equal to the concentration threshold, the operating frequency of the oxygen generator compressor is kept constant.
8. The air conditioning oxygen production control method according to claim 1, characterized in that, The response to the user-defined target oxygen concentration parameter includes: In response to a user-defined concentration level and the target oxygen concentration parameter of the concentration level; The step of detecting that the space oxygen concentration parameter reaches or exceeds the target oxygen concentration parameter and controlling the oxygen compressor to stop its current oxygen production operation includes: For different concentration levels, determine the oxygen concentration control range corresponding to the target oxygen concentration parameter of the concentration level; When the space oxygen concentration parameter is greater than or equal to the upper limit of the oxygen concentration control range, the oxygen compressor is controlled to stop its current oxygen production operation. When the oxygen concentration parameter in the space is less than the lower limit of the oxygen concentration control range, and the oxygen compressor meets the preset shutdown protection time condition, the oxygen compressor is controlled to start running again.
9. The air conditioning oxygen production control method according to claim 1, characterized in that, The process of detecting that the space oxygen concentration parameter has reached or exceeded the target oxygen concentration parameter, controlling the oxygen compressor to stop current oxygen production, and then including: If the detected space oxygen concentration parameter is lower than the target oxygen concentration parameter, return to the process of collecting the inlet temperature parameter of the oxygen generator compressor and the molecular sieve temperature parameter, and then proceed with the subsequent steps.
10. The air conditioning oxygen production control method according to claim 1, characterized in that, The process of detecting that the space oxygen concentration parameter has reached or exceeded the target oxygen concentration parameter, controlling the oxygen compressor to stop current oxygen production, and then including: If the oxygen concentration parameter in the space is detected to be lower than the target oxygen concentration parameter, the oxygen compressor is controlled to run again, and the process returns to the operation of the oxygen compressor, collecting the exhaust temperature parameter and oxygen output status parameter of the oxygen compressor, as well as subsequent steps.
11. An electronic device, characterized in that, The electronic device includes: Memory, used to store executable program code; A processor is configured to call and run the executable program code from the memory, causing the electronic device to perform the air conditioning oxygen production control method as described in any one of claims 1 to 10.
12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the air conditioning oxygen production control method as described in any one of claims 1 to 10.