Negative pressure roller air flow adjusting device and control system

Abstract

The invention relates to the technical field of negative pressure regulation, and discloses a negative pressure roller air flow regulation device and a control system.The system is characterized in that an acquisition unit preprocesses flow speed data and opening degree data to determine the air flow speed and the valve opening degree, and an analysis unit judges whether to adjust the valve opening degree or not based on the change value of the air flow speed; the processing unit is used for determining an association result of the environment air pressure data and the air flow velocity according to an association rule algorithm, generating air pressure marks according to the association result, determining an opening degree adjusting factor according to the number of the air pressure marks, and adjusting the opening degree of the secondary valve according to the opening degree adjusting factor. The adjusting unit adjusts the opening degree of the target valve based on the opening degree adjusting factor, the air flow is conveyed according to the adjusting result, and by controlling the opening degree of the valve, the shaping and weight losing efficiency and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of negative pressure regulation, and in particular to a negative pressure roller air flow regulating device and a control system. Background Art

[0002] With the increasing awareness of health, non-invasive body shaping and slimming technology has become a research hotspot in the field of beauty and body care. Among them, skin shaping and slimming equipment based on the principle of negative pressure adsorption stimulates the metabolism of subcutaneous tissue by adsorbing human skin and combines mechanical massage and skin traction to promote fat decomposition. As a result, skin shaping and slimming equipment has been widely used in the beauty market.

[0003] However, existing body shaping and slimming devices are typically connected to a negative pressure device with a fixed airflow rate, which cannot dynamically adjust the negative pressure airflow based on the user's skin sensitivity. For example, for sensitive skin, a higher valve opening in the negative pressure device will increase the airflow rate, causing excessive congestion and even damage to the skin, reducing the efficiency and safety of body shaping and slimming devices.

[0004] Therefore, it is necessary to design a negative pressure roller air flow regulating device and control system to solve the problems existing in the current technology. Summary of the Invention

[0005] In view of this, the present invention proposes a negative pressure roller air flow adjustment device and control system, which aims to solve the problem that the negative pressure device with fixed air flow cannot dynamically adjust the valve opening according to the user's skin sensitivity, thereby failing to effectively control the air flow, reducing the efficiency and safety of body shaping and weight loss.

[0006] In one aspect, the present invention provides a negative pressure roller air flow regulation and control system, comprising:

[0007] A collection unit is configured to collect flow rate data and valve opening data during a collection time period, and pre-process the flow rate data and valve opening data to determine the air flow rate and valve opening;

[0008] an analyzing unit configured to determine whether to adjust the valve opening based on the change in the airflow velocity; if it is determined that the valve opening should be adjusted, adjust the valve opening according to the change in the airflow velocity, determine an initial valve opening, obtain a feature data set, determine a secondary valve opening based on the feature data set and a flow velocity opening model, compare the initial valve opening with the secondary valve opening, and determine a target valve opening based on the comparison result;

[0009] a processing unit configured to acquire ambient air pressure data based on the acquisition time period, determine a correlation result between the ambient air pressure data and airflow velocity according to an association rule algorithm, generate an air pressure mark according to the correlation result, and determine an opening adjustment factor according to a number of the air pressure marks;

[0010] The adjustment unit is configured to adjust the target valve opening based on the opening adjustment factor and deliver the gas flow according to the adjustment result.

[0011] Furthermore, when the flow rate data and the valve opening data are pre-processed to determine the air flow rate and the valve opening, the method includes:

[0012] The acquisition unit performs a first preprocessing on the flow velocity data, wherein the first preprocessing includes data cleaning and data standardization, and determines the airflow velocity according to the result of the first preprocessing;

[0013] The acquisition unit performs a second preprocessing on the opening data, where the second preprocessing includes data noise reduction and data compensation, and determines the valve opening according to a result of the second preprocessing.

[0014] Furthermore, when determining whether to adjust the valve opening based on the change in the air flow velocity, the method includes:

[0015] The analysis unit obtains the historical air flow velocity change value within a unit time and calculates the average value of the historical air flow velocity change;

[0016] When the change in the air flow velocity per unit time is greater than the average value of the historical air flow velocity change, it is determined to adjust the valve opening;

[0017] When the change value of the airflow velocity per unit time is less than or equal to the average value of the historical airflow velocity change, it is determined that the valve opening is not adjusted, and the air flow is delivered according to the current valve opening.

[0018] Furthermore, when it is determined to adjust the valve opening, the valve opening is adjusted according to the change in the airflow velocity, and the initial valve opening is determined, including:

[0019] The analyzing unit obtains a difference between the change value of the airflow velocity and an average value of historical airflow velocity changes, and records a ratio of the difference to the average value of historical airflow velocity changes as a velocity deviation rate;

[0020] The analyzing unit determines an initial valve opening based on the flow rate deviation rate.

[0021] Furthermore, when acquiring the characteristic data set and determining the secondary valve opening based on the characteristic data set and the flow velocity opening model, the method includes:

[0022] The analysis unit divides the feature data set into a model training set and a model test set;

[0023] Use grid search to find the model parameters of the neural network model and establish the neural network model;

[0024] Training the neural network model according to the model training set, substituting the model test set into the trained neural network model and determining the prediction accuracy of the model;

[0025] When the prediction accuracy is greater than or equal to the prediction accuracy threshold, the trained neural network model is determined as the flow velocity opening model, and the change value of the air flow velocity is substituted into the flow velocity opening model to determine the secondary valve opening.

[0026] Furthermore, when comparing the initial valve opening and the secondary valve opening and determining the target valve opening according to the comparison result, the method includes:

[0027] When the initial valve opening and the secondary valve opening are equal, the analyzing unit determines whether to determine the initial valve opening or the secondary valve opening as the target valve opening;

[0028] When the initial valve opening and the secondary valve opening are not equal, the analyzing unit determines to determine an average of the initial valve opening and the secondary valve opening as the target valve opening.

[0029] Furthermore, when obtaining the ambient air pressure data based on the acquisition time period and determining the association result between the ambient air pressure data and the airflow velocity according to the association rule algorithm, the method includes:

[0030] The processing unit determines a collection time interval according to the collection time period, wherein the left boundary of the collection time interval is the start time of the collection time period, and the right boundary of the collection time interval is the end time of the collection time period;

[0031] Ambient air pressure data is acquired within the acquisition time interval, and multiple candidate item sets are generated according to the Eclat algorithm. Frequent item sets are determined according to the support of the candidate item sets, and association results between the ambient air pressure data and airflow velocity are determined based on the frequent item sets.

[0032] Furthermore, when generating the air pressure mark according to the correlation result and determining the opening adjustment factor according to the number of the air pressure marks, the method includes:

[0033] The processing unit extracts all ambient air pressure data corresponding to the correlation result, compares each corresponding ambient air pressure data with the standard ambient air pressure data, and generates an air pressure mark according to the comparison result, wherein the air pressure mark includes a pressure overflow mark, a pressure compliance mark, and a pressure insufficient mark;

[0034] When the corresponding ambient air pressure data is greater than the standard ambient air pressure data, a pressure overflow mark is generated for the ambient air pressure data;

[0035] When the corresponding ambient air pressure data is equal to the standard ambient air pressure data, generating the pressure compliance mark for the ambient air pressure data;

[0036] When the corresponding ambient air pressure data is lower than the standard ambient air pressure data, the insufficient pressure mark is generated for the ambient air pressure data;

[0037] generating a first number of the pressure overflow marks by counting, generating a second number of the pressure compliance marks by counting, and generating a third number of the pressure insufficient marks by counting;

[0038] Obtaining a ratio of the first quantity to the third quantity;

[0039] An opening adjustment factor is determined based on the quantity ratio.

[0040] Furthermore, when adjusting the target valve opening based on the opening adjustment factor, the method includes:

[0041] The target valve opening is directly proportional to the opening adjustment factor.

[0042] Compared with the prior art, the beneficial effects of the present invention are: by collecting flow rate data and opening data in real time, and converting them into airflow rate and valve opening through preprocessing, and based on the change value of the airflow rate, intelligently judging whether the valve opening needs to be adjusted, for the skin of sensitive parts, when the change value of the airflow rate is detected that may cause skin damage, the system can adjust the valve opening in time to avoid excessive congestion or damage to the skin due to excessive airflow, and adjust the valve opening according to the change value of the airflow rate to determine the initial valve opening, and determine the secondary valve opening based on the characteristic data set and the flow rate opening model, compare the initial valve opening with the secondary valve opening, and dynamically determine the target valve opening by combining the overall characteristic data and real-time data, avoiding the influence of accidental data errors, and using the association rule algorithm to mine the potential connection between the ambient air pressure data and the airflow rate, thereby generating an air pressure mark and determining the opening adjustment factor, ensuring the adjustment of the target valve opening under different environmental conditions, ensuring the stability and reliability of airflow control, and realizing adaptive regulation of airflow.

[0043] On the other hand, the present application also provides a negative pressure roller air flow regulating device for applying the above-mentioned negative pressure roller air flow regulating control system, comprising:

[0044] Negative pressure frame, support plate, protective plate, control panel and negative pressure module;

[0045] The negative pressure frame is fixedly connected to a support plate, the support plate is used to support the negative pressure frame, and the negative pressure frame is used to support the negative pressure module;

[0046] The protective plate is used to protect the negative pressure module, and the protective plate is provided with heat dissipation holes;

[0047] The control panel is fixedly connected to the negative pressure frame, and the control panel is used to control the negative pressure module;

[0048] The negative pressure module includes an on-off valve, a single-level on-off valve, a negative pressure pump and a switching valve;

[0049] The negative pressure pump is connected to the on-off valve, the single-level on-off valve and the switching valve.

[0050] It is understandable that the above-mentioned negative pressure roller air flow regulating device and control system have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0052] Figure 1 This is a functional block diagram of a negative pressure roller air flow regulating device and control system provided by an embodiment of the present invention;

[0053] Figure 2 A schematic structural diagram of a negative pressure roller air flow regulating device provided in an embodiment of the present invention;

[0054] Figure 3 A schematic structural diagram of the side surface of a negative pressure roller air flow regulating device provided in an embodiment of the present invention.

[0055] In the figure, 1. Negative pressure frame; 2. Support plate; 3. Protective plate; 4. Heat dissipation hole; 5. Control panel; 10. Single flat on-off valve; 11. On-off valve; 12. Negative pressure pump; 13. Switching valve. DETAILED DESCRIPTION

[0056] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, unless there is a conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0057] In some embodiments of the present application, see Figure 1 As shown, a negative pressure roller air flow regulation and control system includes:

[0058] The collecting unit is configured to collect flow rate data and valve opening data during a collection period, and pre-process the flow rate data and valve opening data to determine the air flow rate and valve opening.

[0059] The analysis unit is configured to determine whether to adjust the valve opening based on the change value of the airflow velocity. When it is determined that the valve opening should be adjusted, the valve opening is adjusted according to the change value of the airflow velocity, an initial valve opening is determined, a feature data set is obtained, and a secondary valve opening is determined based on the feature data set and a flow velocity opening model. The initial valve opening and the secondary valve opening are compared, and a target valve opening is determined based on the comparison result.

[0060] The processing unit is configured to obtain ambient air pressure data based on a collection time period, determine the association result between the ambient air pressure data and the airflow velocity according to an association rule algorithm, generate an air pressure mark according to the association result, and determine an opening adjustment factor according to the number of air pressure marks.

[0061] The adjustment unit is configured to adjust the target valve opening based on the opening adjustment factor and deliver the gas flow according to the adjustment result.

[0062] Specifically, the system achieves dynamic regulation of negative pressure airflow through the coordinated operation of multiple units. The acquisition unit collects real-time flow rate and valve opening data during a specific acquisition period, representing an acquisition period every 5 seconds. This flow rate and valve opening data is collected using devices such as airflow sensors and valve opening sensors. Environmental noise and signal anomalies during data transmission may interfere with these data. Preprocessing of these data ensures the stability and reliability of airflow rate and valve opening. The analysis unit analyzes changes in airflow rate to determine whether valve opening adjustment is necessary. A greater change in airflow rate indicates greater airflow transmission, accelerating adhesion to the skin. A corresponding reduction in valve opening may be necessary to prevent excessive pressure and skin damage. The valve opening is adjusted based on the change in airflow rate to determine the initial valve opening, which serves as the basis for subsequent judgments. A feature dataset is acquired, including key data such as historical airflow rate, historical airflow rate changes, valve pressure, and valve vibration. Based on these key data and the flow rate opening model, the secondary valve opening of the change value of the airflow velocity is determined, the initial valve opening and the secondary valve opening are compared, and the target valve opening is determined according to the comparison result, thereby achieving fine adjustment of the airflow, thereby ensuring the stability of the airflow to ensure the negative pressure state of the skin shaping and slimming equipment. The current ambient air pressure data is obtained (weather changes and altitude may cause air pressure fluctuations), and the association rule algorithm is used to explore the potential relationship between ambient air pressure data and airflow velocity. For example: at an air pressure of 90kPa, an airflow velocity of 15L / min always occurs. Based on the association results, an air pressure mark is generated. The air pressure mark indicates the deviation of the ambient air pressure data from the standard ambient air pressure. The opening adjustment factor is determined according to the number of air pressure marks, so that the system can dynamically adjust the opening according to the real-time air pressure conditions to ensure the stability and reliability of airflow delivery, thereby achieving real-time control of the airflow.

[0063] It can be understood that by establishing a mapping relationship between ambient air pressure data and airflow velocity through an association rule algorithm to generate an opening adjustment factor, it is possible to provide real-time feedback based on the data and compensate for environmental factors, thereby improving the flexibility and adaptability of airflow control, thereby achieving closed-loop control of airflow, and thus improving the efficiency and safety of body shaping and weight loss.

[0064] In some embodiments of the present application, when the flow rate data and the opening data are preprocessed to determine the airflow rate and the valve opening, it includes: the acquisition unit performs a first preprocessing on the flow rate data, the first preprocessing includes data cleaning and data standardization, and the airflow rate is determined according to the result of the first preprocessing; the acquisition unit performs a second preprocessing on the opening data, the second preprocessing includes data noise reduction and data compensation, and the valve opening is determined according to the result of the second preprocessing.

[0065] Specifically, during the first preprocessing of the flow rate data, data cleaning removes outliers, missing values, and duplicate values ​​to ensure the accuracy and completeness of the data. Data standardization uniformly maps the data to a specific interval to eliminate the influence of different dimensions, facilitating subsequent analysis and calculation, thereby deriving an accurate airflow velocity. The opening data is determined based on the valve and may be affected by vibration and electromagnetic interference, generating noisy data. In the second preprocessing, data noise reduction uses algorithms such as filtering to filter out noise data generated by possible vibration and electromagnetic interference. Data compensation uses PID control to correct data deviations caused by factors such as signal transmission delays, thereby ultimately determining the valve opening. Through the first and second preprocessing, data quality is effectively improved, avoiding the accumulation of errors in the system due to deviations in the original data (flow rate data and opening data), and ensuring the stability and reliability of airflow regulation.

[0066] In some embodiments of the present application, when judging whether to adjust the valve opening based on the change value of the airflow velocity, it includes: the analysis unit obtains the historical airflow velocity change value per unit time, and calculates the historical airflow velocity change average value; when the change value of the airflow velocity per unit time is greater than the historical airflow velocity change average value, it is determined to adjust the valve opening; when the change value of the airflow velocity per unit time is less than or equal to the historical airflow velocity change average value, it is determined not to adjust the valve opening, and the air flow is delivered according to the current valve opening.

[0067] Specifically, the analysis unit collects historical airflow velocity change values ​​(such as velocity fluctuation data in the past n unit time periods), calculates the average value of historical airflow velocity change, and uses the average value of historical airflow velocity change as the "normal fluctuation benchmark". When the change value of the airflow velocity is greater than the average value of the historical airflow velocity change, it means that the current change value of the airflow velocity is abnormal (sudden increase), and the valve opening needs to be adjusted. If the current change value of the airflow velocity is less than or equal to the average value of the historical airflow velocity change, it is considered that the fluctuation of the flow velocity is within the normal range, and even if the airflow volume is small, it will not cause damage to the skin. Therefore, there is no need for intervention, and the airflow volume can be delivered according to the current valve opening, achieving a balance between the accuracy and robustness of the valve opening adjustment.

[0068] In some embodiments of the present application, when determining to adjust the valve opening, the valve opening is adjusted according to the change value of the airflow velocity, and when determining the initial valve opening, it includes: the analysis unit obtains the difference between the change value of the airflow velocity and the historical average value of the airflow velocity change, and records the ratio of the difference to the historical average value of the airflow velocity change as the velocity deviation rate, and the analysis unit determines the initial valve opening based on the velocity deviation rate.

[0069] Specifically, the analysis unit sets a first flow rate deviation rate and a second flow rate deviation rate, the first flow rate deviation rate is greater than the second flow rate deviation rate, and the second flow rate deviation rate is greater than zero, when the flow rate deviation rate is greater than the first flow rate deviation rate, the valve opening is adjusted by the first adjustment coefficient, and the initial valve opening is the product of the first adjustment coefficient and the valve opening, when the flow rate deviation rate is less than or equal to the first flow rate deviation rate and greater than or equal to the second flow rate deviation rate, the valve opening is adjusted by the second adjustment coefficient, and the initial valve opening is the product of the second adjustment coefficient and the valve opening, when the flow rate deviation rate is less than the second flow rate deviation rate, the valve opening is adjusted by the third adjustment coefficient, and the initial valve opening is the product of the third adjustment coefficient and the valve opening, wherein the value range of the adjustment coefficient is: 0<first adjustment coefficient<second adjustment coefficient<third adjustment coefficient<1. When the flow rate deviation rate is greater than the first flow rate deviation rate, it indicates that the change value of the previous air flow velocity is more seriously abnormal, and it is necessary to select a smaller first adjustment coefficient to adjust the valve opening. The initial valve opening is the product of the first adjustment coefficient and the valve opening. Therefore, the initial valve opening is small, thereby effectively "curbing" the air flow. When the flow rate deviation rate is less than the second flow rate deviation rate, it indicates that the change value of the previous air flow velocity is more seriously abnormal. The valve opening is adjusted by the third adjustment coefficient. The initial valve opening is the product of the third adjustment coefficient and the valve opening. Therefore, the initial valve opening is larger than the initial valve opening under the first adjustment coefficient, ensuring the balance between the air flow and the initial valve opening, and improving the stability and reliability of the dynamic control of the air flow.

[0070] In some embodiments of the present application, when obtaining a feature data set and determining the secondary valve opening based on the feature data set and the flow rate opening model, it includes: the analysis unit divides the feature data set into a model training set and a model test set, uses grid search to find model parameters of the neural network model, establishes a neural network model, trains the neural network model according to the model training set, uses the model test set to substitute the trained neural network model and determines the prediction accuracy of the model, when the prediction accuracy is greater than or equal to the prediction accuracy threshold, determines the trained neural network model as the flow rate opening model, and substitutes the change value of the airflow velocity into the flow rate opening model to determine the secondary valve opening.

[0071] Specifically, the feature dataset includes key data such as historical airflow velocity, changes in historical airflow velocity, valve pressure, and valve vibration. The feature dataset is divided into a model training set and a model test set in a ratio of 7:3, ensuring that both the model training set and the model test set contain a variety of data to improve the generalization ability of the model. Grid search determines the model parameters (hyperparameters) of the neural network model by exhaustively searching in the parameter space. The model training set is used to train the neural network model, and the model test set is used to evaluate the performance of the trained model. The neural network model is used as the "initial model". The neural network model contains multiple layers, different types of neurons and activation functions, and can capture complex relationships in the data. During the training process using the model training set, the model will attempt to learn patterns and relationships in the data to improve its prediction or classification capabilities. After each training session, the model test set is substituted into the trained neural network model to determine the model's prediction accuracy, which is used to measure the performance of the model. The prediction accuracy threshold is preferably 0.8. When the prediction accuracy is greater than or equal to the prediction accuracy threshold, it is considered that the model has reached a satisfactory performance level and can accurately output the secondary valve opening, ensuring the stability and reliability of gas flow control.

[0072] In some embodiments of the present application, when the initial valve opening and the secondary valve opening are compared and the target valve opening is determined based on the comparison result, it includes: when the initial valve opening and the secondary valve opening are equal, the analysis unit determines to determine the initial valve opening or the secondary valve opening as the target valve opening; when the initial valve opening and the secondary valve opening are not equal, the analysis unit determines to determine the average of the initial valve opening and the secondary valve opening as the target valve opening.

[0073] Specifically, the initial valve opening is calculated based on the adjustment coefficient and the valve opening, focusing on the rapid response to the current airflow, while the secondary valve opening is determined based on the characteristic data set and the flow rate opening model, focusing on the adaptation of the overall data. If the two are equal, it means that the real-time adjustment is consistent with the overall adjustment strategy, and the initial valve opening or the secondary valve opening is directly determined as the target valve opening. If the two are not equal, it means that the adjustment strategy of the real-time data and the overall data are inconsistent. The target valve opening is determined according to the average of the initial valve opening and the secondary valve opening, which prevents the deviation of accidental data from reducing the accuracy of the adjustment and ensures the stability of the airflow regulation.

[0074] In some embodiments of the present application, when obtaining ambient air pressure data based on a collection time period and determining the association result between the ambient air pressure data and the airflow velocity according to an association rule algorithm, it includes: a processing unit determines an acquisition time interval according to the acquisition time period, the left boundary of the acquisition time interval is the start time of the acquisition time period, and the right boundary of the acquisition time interval is the end time of the acquisition time period, obtaining ambient air pressure data within the acquisition time interval, and generating multiple candidate item sets according to the Eclat algorithm, determining a frequent item set according to the support of the candidate item set, and determining the association result between the ambient air pressure data and the airflow velocity based on the frequent item set.

[0075] Specifically, the processing unit determines the collection time interval according to the collection time period. The left boundary of the collection time interval is the start time of the collection time period, and the right boundary of the collection time interval is the end time of the collection time period. For example, the collection time period indicates that collection is performed every 5 seconds, and the start time is 11:30. In this unit time period, 11:31 is the end time of the collection time period. The processing unit is responsible for obtaining ambient air pressure data from 11:30 to 11:31, and generates multiple candidate item sets according to the Eclat algorithm, and calculates the support of each candidate item set. The minimum support threshold is preferably 2. If the support is greater than or equal to the minimum support threshold, the candidate item set is determined to be a frequent item set, and the association result is obtained according to the frequent item set. For example, under an air pressure of 90kPa, an airflow rate of 15L / min always occurs. According to the Eclat algorithm, the ambient air pressure data and the airflow rate are dynamically associated to determine the implicit relationship between the two, laying a data foundation for determining the opening adjustment factor.

[0076] In some embodiments of the present application, when generating an air pressure mark according to the association result and determining the opening adjustment factor according to the number of air pressure marks, it includes: the processing unit extracts all the ambient air pressure data corresponding to the association result, and compares each corresponding ambient air pressure data with the standard ambient air pressure data, and generates an air pressure mark according to the comparison result. The air pressure mark includes a pressure overflow mark, a pressure compliance mark and a pressure insufficient mark. When the corresponding ambient air pressure data is greater than the standard ambient air pressure data, a pressure overflow mark is generated for the ambient air pressure data. When the corresponding ambient air pressure data is equal to the standard ambient air pressure data, a pressure compliance mark is generated for the ambient air pressure data. When the corresponding ambient air pressure data is less than the standard ambient air pressure data, a pressure insufficient mark is generated for the ambient air pressure data. The first number of pressure overflow marks is statistically generated, the second number of pressure compliance marks is statistically generated, and the third number of pressure insufficient marks is statistically generated. The quantity ratio of the first number to the third number is obtained, and the opening adjustment factor is determined based on the quantity ratio.

[0077] In some embodiments of the present application, when the target valve opening is adjusted based on the opening adjustment factor, the target valve opening and the opening adjustment factor are in direct proportion.

[0078] Specifically, the standard ambient air pressure data is determined according to the local environment and the meteorological bureau. The processing unit obtains the quantitative ratio L of the first quantity and the third quantity. When L is less than 1, the first opening adjustment factor is determined as the opening adjustment factor. When 1≤L≤1.4, the second opening adjustment factor is determined as the opening adjustment factor. When 1.4<L, the third opening adjustment factor is determined as the opening adjustment factor. When L does not exist, the sum of the first opening adjustment factor, the second opening adjustment factor and the third opening adjustment factor is determined as the opening adjustment factor. The value range of the opening adjustment factor is: 0<third opening adjustment factor<second opening adjustment factor<1, 1<first opening adjustment factor. The quantity ratio reflects the degree and trend of the deviation of the ambient pressure from the standard ambient pressure. Based on this, the corresponding opening adjustment factor is determined to adjust the target valve opening. The larger the quantity ratio, the more the ambient pressure deviates from the standard ambient pressure, and the smaller the corresponding opening adjustment factor. Since the target valve opening and the opening adjustment factor are directly proportional, the smaller the target valve opening is, the abnormal overflow of air flow caused by the deviation of the ambient pressure from the standard ambient pressure is reduced, thereby improving the stability and reliability of air flow control.

[0079] In summary, the beneficial effects of the present invention are: by collecting flow rate data and opening data in real time, and converting them into airflow rate and valve opening through preprocessing, and based on the change value of the airflow rate, intelligently judging whether the valve opening needs to be adjusted, for sensitive skin parts, when the change value of the airflow rate is detected that may cause skin damage, the system can adjust the valve opening in time to avoid excessive congestion or damage to the skin due to excessive airflow, and adjust the valve opening according to the change value of the airflow rate to determine the initial valve opening, and determine the secondary valve opening based on the characteristic data set and the flow rate opening model, compare the initial valve opening with the secondary valve opening, and dynamically determine the target valve opening by combining the overall characteristic data and real-time data, avoiding the influence of accidental data errors, and using the association rule algorithm to mine the potential connection between the ambient air pressure data and the airflow rate, thereby generating an air pressure mark and determining the opening adjustment factor, ensuring the adjustment of the target valve opening under different environmental conditions, ensuring the stability and reliability of airflow control, and realizing adaptive regulation of airflow.

[0080] In another preferred embodiment based on the above embodiment, refer to Figure 2-3As shown, this embodiment provides a negative pressure roller air flow regulating device, which is used to apply the above-mentioned negative pressure roller air flow regulating control system, including: a negative pressure frame 1, a support plate 2, a protective plate 3, a control panel 5 and a negative pressure module, the negative pressure frame 1 is fixedly connected to the support plate 2, the support plate 2 is used to support the negative pressure frame 1, the negative pressure frame 1 is used to support the negative pressure module, the protective plate 3 is used to protect the negative pressure module, the protective plate 3 has a heat dissipation hole 4, the control panel 5 is fixedly connected to the negative pressure frame 1, the control panel 5 is used to control the negative pressure module, the negative pressure module includes an on-off valve 11, a single flat on-off valve 10, a negative pressure pump 12 and a switching valve 13, the negative pressure pump 12 is connected to the on-off valve 11, the single flat on-off valve 10 and the switching valve 13.

[0081] Specifically, the support plate 2 is responsible for supporting the negative pressure frame 1 to avoid abnormal vibration of the negative pressure frame 1. The protective plate 3 is used to protect the negative pressure module to prevent the negative pressure module from being hit by foreign objects at the bottom and causing damage to the negative pressure module. The heat dissipation hole 4 is used to dissipate the heat generated by the negative pressure module to avoid overheating of the negative pressure module and affecting the working state. The control panel 5 is fixedly connected to the negative pressure frame 1, and the acquisition unit, analysis unit, processing unit and adjustment unit of the negative pressure roller air flow regulation control system are integrated in the control panel 5. When performing negative pressure regulation, the on-off valve 11, the single-level on-off valve 10, the negative pressure pump 12 and the switching valve 13 of the negative pressure module work together. The on-off valve 11 and the single-level on-off valve 10 are used to shut off and open the air flow of the negative pressure pump 12. When the air flow of the negative pressure pump 12 is turned on, the acquisition unit is responsible for collecting the flow rate data and opening data of the switching valve 13, so as to adjust the opening of the switching valve 13 accordingly to ensure precise control of the air flow, thereby improving the effect of the device on negative pressure regulation and ensuring the efficiency and safety of body shaping and weight loss.

[0082] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or a combination of software and hardware embodiments. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0083] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0084] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0085] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A negative pressure roller air flow regulation and control system, characterized in that: include: A collection unit is configured to collect flow rate data and valve opening data during a collection time period, and pre-process the flow rate data and valve opening data to determine the air flow rate and valve opening; an analyzing unit configured to determine whether to adjust the valve opening based on the change in the airflow velocity; if it is determined that the valve opening should be adjusted, adjust the valve opening according to the change in the airflow velocity, determine an initial valve opening, obtain a feature data set, determine a secondary valve opening based on the feature data set and a flow velocity opening model, compare the initial valve opening with the secondary valve opening, and determine a target valve opening based on the comparison result; a processing unit configured to acquire ambient air pressure data based on the acquisition time period, determine a correlation result between the ambient air pressure data and airflow velocity according to an association rule algorithm, generate an air pressure mark according to the correlation result, and determine an opening adjustment factor according to a number of the air pressure marks; The adjustment unit is configured to adjust the target valve opening based on the opening adjustment factor and deliver the gas flow according to the adjustment result.

2. The negative pressure roller air flow control system according to claim 1, characterized in that: When the flow rate data and the valve opening data are pre-processed to determine the air flow rate and the valve opening, the method includes: The acquisition unit performs a first preprocessing on the flow velocity data, wherein the first preprocessing includes data cleaning and data standardization, and determines the airflow velocity according to the result of the first preprocessing; The acquisition unit performs a second preprocessing on the opening data, where the second preprocessing includes data noise reduction and data compensation, and determines the valve opening according to a result of the second preprocessing.

3. The negative pressure roller air flow control system according to claim 2, characterized in that: When determining whether to adjust the valve opening based on the change value of the air flow velocity, the method includes: The analysis unit obtains the historical air flow velocity change value within a unit time and calculates the average value of the historical air flow velocity change; When the change in the air flow velocity per unit time is greater than the average value of the historical air flow velocity change, it is determined to adjust the valve opening; When the change value of the airflow velocity per unit time is less than or equal to the average value of the historical airflow velocity change, it is determined that the valve opening is not adjusted, and the air flow is delivered according to the current valve opening.

4. The negative pressure roller air flow regulation and control system according to claim 3, characterized in that: When it is determined that the valve opening is to be adjusted, the valve opening is adjusted according to the change in the airflow velocity, and when the initial valve opening is determined, the method includes: The analyzing unit obtains a difference between the change value of the airflow velocity and an average value of historical airflow velocity changes, and records a ratio of the difference to the average value of historical airflow velocity changes as a velocity deviation rate; The analyzing unit determines an initial valve opening based on the flow rate deviation rate.

5. The negative pressure roller air flow regulating and controlling system according to claim 4, characterized in that: When acquiring a characteristic data set and determining the secondary valve opening based on the characteristic data set and the flow velocity opening model, the method includes: The analysis unit divides the feature data set into a model training set and a model test set; Use grid search to find the model parameters of the neural network model and establish the neural network model; Training the neural network model according to the model training set, substituting the model test set into the trained neural network model and determining the prediction accuracy of the model; When the prediction accuracy is greater than or equal to the prediction accuracy threshold, the trained neural network model is determined as the flow velocity opening model, and the change value of the air flow velocity is substituted into the flow velocity opening model to determine the secondary valve opening.

6. The negative pressure roller air flow regulating and controlling system according to claim 5, characterized in that: When comparing the initial valve opening and the secondary valve opening and determining the target valve opening according to the comparison result, the method includes: When the initial valve opening and the secondary valve opening are equal, the analyzing unit determines whether to determine the initial valve opening or the secondary valve opening as the target valve opening; When the initial valve opening and the secondary valve opening are not equal, the analyzing unit determines to determine an average of the initial valve opening and the secondary valve opening as the target valve opening.

7. The negative pressure roller air flow regulating and controlling system according to claim 6, characterized in that: When the ambient air pressure data is acquired based on the acquisition time period, and a correlation result between the ambient air pressure data and the airflow velocity is determined according to an association rule algorithm, the method includes: The processing unit determines a collection time interval according to the collection time period, wherein the left boundary of the collection time interval is the start time of the collection time period, and the right boundary of the collection time interval is the end time of the collection time period; Ambient air pressure data is acquired within the acquisition time interval, and multiple candidate item sets are generated according to the Eclat algorithm. Frequent item sets are determined according to the support of the candidate item sets, and association results between the ambient air pressure data and airflow velocity are determined based on the frequent item sets.

8. The negative pressure roller air flow regulating and controlling system according to claim 7, characterized in that: When generating an air pressure mark according to the correlation result and determining an opening adjustment factor according to the number of the air pressure marks, the method includes: The processing unit extracts all ambient air pressure data corresponding to the correlation result, compares each corresponding ambient air pressure data with the standard ambient air pressure data, and generates an air pressure mark according to the comparison result, wherein the air pressure mark includes a pressure overflow mark, a pressure compliance mark, and a pressure insufficient mark; When the corresponding ambient air pressure data is greater than the standard ambient air pressure data, a pressure overflow mark is generated for the ambient air pressure data; When the corresponding ambient air pressure data is equal to the standard ambient air pressure data, generating the pressure compliance mark for the ambient air pressure data; When the corresponding ambient air pressure data is lower than the standard ambient air pressure data, the insufficient pressure mark is generated for the ambient air pressure data; generating a first number of the pressure overflow marks by counting, generating a second number of the pressure compliance marks by counting, and generating a third number of the pressure insufficient marks by counting; Obtaining a ratio of the first quantity to the third quantity; An opening adjustment factor is determined based on the quantity ratio.

9. The negative pressure roller air flow regulating and controlling system according to claim 8, characterized in that: When adjusting the target valve opening based on the opening adjustment factor, the method includes: The target valve opening is directly proportional to the opening adjustment factor.

10. A negative pressure roller air flow regulating device, used for applying the negative pressure roller air flow regulating control system according to any one of claims 1 to 9, characterized in that: include: Negative pressure frame, support plate, protective plate, control panel and negative pressure module; The negative pressure frame is fixedly connected to a support plate, the support plate is used to support the negative pressure frame, and the negative pressure frame is used to support the negative pressure module; The protective plate is used to protect the negative pressure module, and the protective plate is provided with heat dissipation holes; The control panel is fixedly connected to the negative pressure frame, and the control panel is used to control the negative pressure module; The negative pressure module includes an on-off valve, a single-level on-off valve, a negative pressure pump and a switching valve; The negative pressure pump is connected to the on-off valve, the single-level on-off valve and the switching valve.

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