Intelligent atomizer and automatic calibration method thereof

Abstract

The invention relates to the technical field of atomizers, and discloses an intelligent atomizer and an automatic calibration method thereof.The intelligent atomizer comprises a control module, a compressor module, a sensing module, a three-way electromagnetic valve and an adjustable valve; the control module is electrically connected with the compressor module, the sensing module, the three-way electromagnetic valve and the adjustable valve, controls the rotating speed of the compressor module and the opening amplitude of the adjustable valve and reads the numerical value of the sensing module. According to the automatic calibration method of the intelligent atomizer, airflow pressure and flow fluctuation are extremely small after long-time operation after calibration, stable atomization of medicine is guaranteed, and treatment safety and reliability are improved; meanwhile, the deposition rate of medicine in the respiratory tract is increased through accurate control, rehabilitation is accelerated, waste is reduced, and cost is reduced; in addition, the universality and user friendliness of the device are enhanced, the device adapts to different drugs, remote guidance and parameter adjustment are facilitated through wireless connection, the use limitation is broken through, and wide application of the device in the medical field is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of atomizers, and in particular to an intelligent atomizer and an automatic calibration method thereof. Background Art

[0002] At present, the application of smart nebulizers is becoming more and more widespread, and they play a key role in the treatment of respiratory diseases. With the continuous advancement of science and technology, the functions and performance of smart nebulizers are constantly improving, but they are also facing a series of problems that need to be solved urgently.

[0003] In the current market situation, the compression-type intelligent nebulizer driven by the traditional shaded-pole motor occupies a large share, but it has significant technical shortcomings. Due to the limitations of the motor's own characteristics, this type of nebulizer lacks the ability to adjust the speed, which makes it impossible to flexibly respond to the requirements of the output airflow characteristics under different working conditions during operation. As the working time continues, the stability of its output airflow gradually deteriorates, and it is difficult to maintain an ideal working state. This is undoubtedly a serious problem for medical application scenarios that require precise control of the drug atomization effect. At the same time, although some compression nebulizers using DC motors have achieved technical breakthroughs in the motor speed regulation function, they provide certain possibilities for adjusting the output airflow characteristics. Unfortunately, this type of nebulizer is generally not equipped with a professional calibration device. In the actual user use link, due to the lack of effective calibration means and professional guidance, the user still cannot scientifically and reasonably adjust the output airflow characteristics according to actual needs, resulting in a significant reduction in the performance of the equipment in actual applications, and unable to give full play to its due advantages.

[0004] Announcement No.: CN222110653U, discloses a nebulizer, which includes an air supply unit, an atomizing device and a control component; the air supply unit and the atomizing device are connected through a pipeline, a solenoid valve is provided on the pipeline, the solenoid valve is electrically connected to the control component, the solenoid valve includes an air inlet, a first air outlet and a second air outlet, the air supply unit and the air inlet are connected through a first pipeline, the first air outlet and the atomizing device are connected through a second pipeline, and the second air outlet is connected to the atmosphere; an air pressure sensor is provided on the second pipeline, and the air pressure sensor is electrically connected to the control component. This patent realizes on-demand drug administration by linking the air pressure sensor and the solenoid valve to switch the drug administration mode in real time according to the patient's inhalation situation.

[0005] Therefore, an intelligent atomizer and an automatic calibration method thereof are proposed. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides an intelligent atomizer and an automatic calibration method thereof, which solves the problem that the compression-type intelligent atomizer driven by a shaded-pole motor lacks the speed regulation capability resulting in poor airflow stability, and that some DC motor compression-type atomizers can regulate speed but have no professional calibration device, making it impossible for users to scientifically regulate the output airflow characteristics.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent atomizer, comprising a control module, a compressor module, a sensing module, a three-way solenoid valve and an adjustable valve;

[0010] The control module is electrically connected to the compressor module, the sensing module, the three-way solenoid valve and the adjustable valve. The control module controls the rotation speed of the compressor module, the opening amplitude of the adjustable valve and the opening or closing of each interface of the three-way solenoid valve, and reads the value of the sensing module. The control module starts the relevant sensing module, thereby starting the operation process of the entire system;

[0011] The compressor module is connected to the sensing module, and the compressor module starts to run at a preset initial speed;

[0012] The sensing module includes a pressure gauge and a flow meter, which can continuously monitor various data to ensure that the changes in pressure and flow can be accurately grasped after each adjustment;

[0013] One end of the three-way solenoid valve is communicated with the sensing module, one end is communicated with the air outlet, and one end is communicated with the adjustable valve.

[0014] Preferably, the sensing module includes a pressure meter and a flow meter, and the control module reads the pressure count value and the flow count value.

[0015] Preferably, the control module is connected to the external terminal via a wireless transmission signal, which makes it convenient for medical staff to remotely guide patients in use or adjust parameters according to the patient's specific situation, breaking the limitations of traditional nebulizers in usage scenarios and operational convenience, improving the versatility of the equipment and user satisfaction, and promoting the widespread application of smart nebulizers in the medical field.

[0016] Preferably, the compressor module includes a motor and a cylinder, and the control module controls the motor speed. The precise regulation of the motor speed and the valve opening amplitude effectively reduces the energy consumption during the operation of the equipment. Compared with the traditional unoptimized atomizer, the energy consumption is reduced under the same atomization effect and working time, thereby reducing energy waste.

[0017] An automatic calibration method for an intelligent atomizer includes an atomizer, and the specific steps are as follows:

[0018] S1: Close the three-way solenoid valve in the atomizer connected to the air outlet channel;

[0019] S2: adjusting the adjustable valve in the atomizer and observing the pressure count value at the same time, and fixing the adjustable valve when the pressure count value reaches a preset value;

[0020] S3: Determine whether the flow count value is within a preset range;

[0021] S4: If the flow count value is not within the preset range, the motor speed is calculated and automatically adjusted according to the measured flow count value, the flow count value and the pressure count value are re-obtained after a preset time, and the opening amplitude of the adjustable valve is automatically adjusted;

[0022] S5: Repeat steps S3 and S4 until the flow count value and the pressure count value are within a preset range.

[0023] Preferably, in step S4, calculating and adjusting the motor speed according to the value of the flow meter includes the following steps:

[0024] S41: Calculating the motor output power;

[0025] S42: Calculating a power error according to the set motor power and the motor output power;

[0026] S43: Calculating the speed adjustment amount of the motor using a negative feedback algorithm;

[0027] S44: Calculate the duty cycle of the motor speed regulation and control the motor speed.

[0028] Preferably, step S41 includes the following algorithm:

[0029] P(t)=[p(t)-p(0)]*Q(t)

[0030] Wherein, P(t) is the output mechanical power; p(t) is the value of the pressure gauge; p(0) is the standard atmospheric pressure; and Q(t) is the flow meter value.

[0031] Preferably, step S42 includes the following algorithm:

[0032] △P(t)=P(0)-k*P(t)

[0033] Among them, △P(t) is the power error; P(0) is the set electric power; k is the proportional coefficient.

[0034] Preferably, step S3 includes the following algorithm:

[0035] △n(t)=Kp*△P(t)+Ki∫△P(t)+Kd*d△P(t) / dt

[0036] Among them, △n(t) is the speed adjustment amount; Kp is the proportional coefficient; Ki is the integral coefficient; Kd is the differential coefficient; and t is the time.

[0037] Preferably, step S4 includes the following algorithm:

[0038] D(t)=(△n(t)-b) / a

[0039] Where a is the coefficient; b is the offset; and D(t) is the duty cycle.

[0040] (III) Beneficial effects

[0041] Compared with the prior art, the present invention provides an intelligent atomizer and an automatic calibration method thereof, which have the following beneficial effects:

[0042] 1. The intelligent atomizer and its automatic calibration method have demonstrated excellent precision control performance. It has remarkable high-precision adjustment capabilities for the motor speed of the compressor module and the opening range of the adjustable valve. During long-term uninterrupted operation, the pressure of the device's output airflow always maintains ultra-high stability, and the pressure fluctuation is effectively constrained within an extremely fine range. This excellent performance effectively ensures that the atomization operation can be continuously advanced stably and efficiently, and effectively ensures that the equipment can maintain highly consistent and reliable performance in different usage scenarios and time spans, bringing great convenience and reliable usage experience to users.

[0043] 2. The intelligent nebulizer and its automatic calibration method, with its precise pressure and flow dual control mechanism, successfully helps the drug achieve an ideal atomization form, thereby ensuring that patients can inhale efficiently. Compared with traditional nebulizer equipment, it significantly improves the deposition ratio of the drug in the respiratory tract, allowing more effective ingredients to accurately reach the diseased area, effectively promoting the treatment process, greatly improving the efficiency and quality of rehabilitation, and bringing new hope and a better treatment experience to patients.

[0044] 3. The intelligent nebulizer and its automatic calibration method can adapt to the nebulization needs of different drugs. Users can operate it without professional knowledge. The wireless connection function between the control module and the external terminal makes it convenient for medical staff to remotely guide patients or adjust parameters according to the specific circumstances of the patients. Whether in a hospital or home environment, personalized nebulization treatment can be easily achieved, breaking the limitations of traditional nebulizers in usage scenarios and operational convenience, improving the versatility and user satisfaction of the equipment, and promoting the widespread application of intelligent nebulizers in the medical field.

[0045] 4. The intelligent atomizer and its automatic calibration method effectively reduce the energy consumption during the operation of the equipment by precisely controlling the motor speed and the valve opening amplitude. Compared with the traditional unoptimized atomizer, under the same atomization effect and working time, the energy consumption is reduced, the energy waste is reduced, which conforms to the modern concept of energy conservation and environmental protection, and reduces the cost of use. Especially for medical institutions and home users who use it for a long time, it can significantly save electricity expenses and has good economic and environmental benefits.

[0046] 5. The intelligent atomizer and its automatic calibration method have accurate calibration and stable performance, which extend the overall service life of the equipment. Under precisely controlled working conditions, the wear of key components such as the compressor module, solenoid valve and valve is significantly reduced, the maintenance frequency of the equipment is greatly reduced, the cost investment caused by equipment replacement is reduced, the cost performance of the equipment is improved, and a more lasting and reliable use guarantee is provided to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a module diagram of an intelligent atomizer and an automatic calibration method thereof proposed in the present invention.

[0048] In the figure: 1. control module; 2. compressor module; 21. motor; 22. cylinder; 3. sensing module; 31. pressure gauge; 32. flow meter; 4. three-way solenoid valve; 5. adjustable valve. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1, an intelligent atomizer, comprising a control module 1, a compressor module 2, a sensing module 3, a three-way solenoid valve 4 and an adjustable valve 5; the control module 1 is electrically connected to the compressor module 2, the sensing module 3, the three-way solenoid valve 4 and the adjustable valve 5, and at the same time, the control module 1 can be connected to an external terminal through a wireless transmission signal; the control module 1 controls the speed of the compressor module 2, the opening amplitude of the adjustable valve 5 and the opening or closing of each interface of the three-way solenoid valve 4, and reads the value of the sensing module 3; the compressor module 2 is connected to the sensing module 3; the sensing module 3 includes a pressure gauge 31 and a flow meter 32, and more specifically, the control module 1 can read the value of the pressure gauge 31 and the value of the flow meter 32; one end of the three-way solenoid valve 4 is connected to the sensing module 3, one end is connected to the air outlet, and one end is connected to the adjustable valve 5.

[0051] The compressor module 2 includes a motor 21 and a cylinder 22 , and the control module 1 controls the rotation speed of the motor 21 .

[0052] An automatic calibration method for an intelligent atomizer includes an intelligent atomizer, and the specific steps are as follows:

[0053] S1: Close the three-way solenoid valve 4 in the atomizer connected to the air outlet channel;

[0054] S2: Adjust the adjustable valve 5 in the atomizer and observe the value of the pressure gauge 31 at the same time. When the value of the pressure gauge 31 reaches a preset value, fix the adjustable valve 5;

[0055] S3: Determine whether the value of the flow meter 32 is within a preset range; in this embodiment, the preset range can be set and adjusted by the wireless terminal after the external terminal is connected to the atomizer;

[0056] S4: If the value of the flow meter 32 is not within the preset range, the speed of the motor 21 is calculated and automatically adjusted according to the measured value of the flow meter 32, and the flow meter value and the pressure meter 31 value are re-obtained after a preset time, and the opening range of the adjustable valve 5 is automatically adjusted;

[0057] S5: Repeat steps S3 and S4 until the value of the flow meter 32 and the value of the pressure meter 31 are within the preset range.

[0058] In step S4, calculating and adjusting the speed of the motor 21 according to the value of the flow meter 32 includes the following steps:

[0059] S41: Calculate the output power of the motor 21;

[0060] S42: Calculating the power error according to the set electric power of the motor 21 and the output power of the motor 21;

[0061] S43: Calculating the speed adjustment amount of the motor 21 using a negative feedback algorithm;

[0062] S44: Calculate the duty cycle of the speed regulation of the motor 21 and control the speed of the motor 21.

[0063] Step S41 includes the following algorithm:

[0064] P(t)=[p(t)-p(0)]*Q(t)

[0065] Among them, P(t) is the output mechanical power; p(t) is the pressure gauge value; p(0) is the standard atmospheric pressure; Q(t) is the flow meter value.

[0066] Step S42 includes the following algorithm:

[0067] △P(t)=P(0)-k*P(t)

[0068] Among them, △P(t) is the power error; P(0) is the set electric power; k is the proportional coefficient.

[0069] Step S3 includes the following algorithm:

[0070] △n(t)=Kp*△Pt+Ki∫△Pt+Kd*d△Pt / dt

[0071] Among them, △n(t) is the speed adjustment amount; Kp is the proportional coefficient; Ki is the integral coefficient; Kd is the differential coefficient;

[0072] t is time.

[0073] Step S4 includes the following algorithm:

[0074] D(t)=(△n(t)-b) / a

[0075] Where a is the coefficient; b is the offset; and D(t) is the duty cycle.

[0076] In summary, for the intelligent nebulizer and its automatic calibration method, when using this device, the control module 1 will start the relevant sensing module 3, thereby starting the operation process of the entire system. At this time, the compressor module 2 will start running at a preset initial speed, and the initial speed range is between 1500-2500rpm, and the setting of this initial speed fully considers the atomization characteristics of different drugs, and can be flexibly adjusted within this range according to the unique properties of specific drugs, so as to quickly build a stable and reliable airflow environment during the startup calibration phase. Such a design not only ensures the high efficiency of the equipment when it is started, but also takes into account the initial pressure and flow conditions required for different drugs, so that the airflow can flow smoothly through the three-way solenoid valve 4 and the adjustable valve 5.

[0077] The control module 1 plays the core control and regulation function. It will compare the actual data with the preset standard parameters according to the data fed back by the sensing module 3. According to the comparison results, the control module 1 will automatically and accurately adjust the opening amplitude of the adjustable valve 5, and optimize the key parameters such as the rotation speed of the compressor module 2. During this process, the system will make multiple dynamic adjustments and continuously monitor various data to ensure that after each adjustment, the changes in pressure and flow can be accurately grasped. Through this continuous dynamic adjustment and data monitoring cycle, until the pressure and flow are fully in line with the standard range, the entire calibration process is declared completed. Then the system will enter standby mode, waiting for users to use at any time, providing users with accurate, stable and efficient atomization services.

[0078] Such an operating process not only ensures the performance stability and reliability of the equipment, but also fully reflects its adaptability to different drug atomization requirements, provides solid technical support for the subsequent drug atomization process, makes the entire atomization process more scientific and efficient, and greatly improves the intelligence level of the equipment and user experience.

[0079] The following table shows the mechanical power and electrical power corresponding to different pressures and different flow rates:

[0080]

[0081]

[0082] From the data in the table, we can see that the flow and pressure units are converted into m 3 / s and Pa, the output mechanical power of the pump is the product of pressure and flow rate, and the output mechanical power of the pump is directly proportional to the input electrical power. This rule can be used as the basis for adjustment in the product calibration mode.

[0083] After the target pressure and flow are determined, the mechanical power output by the pump is a fixed value. The output mechanical power can be kept constant by controlling the input electrical power. At the same time, the pressure can be adjusted independently according to the feedback, ultimately achieving the required pressure and flow values.

[0084] For example, the target values ​​after calibration are pressure 0.1MPa±0.01MPa and flow 4L / min±0.2L / min. In the calibration mode, the corresponding preset electric power is about 10W. At the set power, the motor 5 rotates at 1900RPM. The pressure value and flow value are read. If the pressure does not match, the opening amplitude of the valve 10 is adjusted so that the measured pressure gauge 8 is around 0.1MPa. At this time, the control module automatically adjusts the power so that the flow meets the requirements: for example, the measured pressure is 0.08MPa, and the control module adjusts the pressure to 0 according to the target pressure value. .1MPa±0.01MPa, and at the same time, the control module controls the compressor module to increase the speed to 1850rpm to achieve constant output mechanical power. The measured pressure value is 0.1MPa±0.01MPa. Otherwise, the above pressure adjustment process should be repeated until the pressure and power are stable, and then the flow rate is measured to be 4L / min±0.2L / min. At this time, the calibration is successful; if the flow value is 3.7L / min, it means that the set power is too low, and the power needs to be increased to 10.7W according to the proportion to achieve new balance and then repeat the above process.

[0085] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent atomizer, characterized in that: It comprises a control module (1), a compressor module (2), a sensing module (3), a three-way solenoid valve (4) and an adjustable valve (5); The control module (1) is electrically connected to the compressor module (2), the sensing module (3), the three-way solenoid valve (4) and the adjustable valve (5); the control module (1) controls the rotation speed of the compressor module (2), the opening amplitude of the adjustable valve (5) and the opening or closing of each interface of the three-way solenoid valve, and reads the value of the sensing module (3); The compressor module (2) is in communication with the sensing module (3); The sensing module (3) comprises a pressure gauge (31) and a flow meter (32); One end of the three-way solenoid valve (4) is in communication with the sensing module (3), one end is in communication with the air outlet, and one end is in communication with the adjustable valve (5).

2. The intelligent atomizer according to claim 1, characterized in that: The sensing module comprises a pressure meter and a flow meter, and the control module (1) reads the value of the pressure meter (31) and the value of the flow meter (32).

3. The intelligent atomizer according to claim 1, characterized in that: The control module (1) is connected to an external terminal via a wireless transmission signal.

4. The intelligent atomizer according to claim 1, characterized in that: The compressor module (2) comprises a motor (21) and a cylinder (22), and the control module (1) controls the rotation speed of the motor (21).

5. A method for automatic calibration of an intelligent atomizer, comprising the intelligent atomizer according to any one of claims 1 to 4, characterized in that: The specific steps are as follows: S1: Close the three-way solenoid valve (4) in the atomizer to connect the gas outlet channel; S2: adjusting the adjustable valve (5) in the atomizer while observing the value of the pressure gauge (31); when the value of the pressure gauge (31) reaches a preset value, fixing the adjustable valve (5); S3: Determine whether the value of the flow meter (32) is within a preset range; S4: If the value of the flow meter (32) is not within a preset range, the speed of the motor (21) is calculated and automatically adjusted according to the measured value of the flow meter (32), the flow meter value and the pressure meter (31) value are re-obtained after a preset time, and the opening range of the adjustable valve (5) is automatically adjusted; S5: Repeat steps S3 and S4 until the value of the flow meter (32) and the value of the pressure meter (31) are within a preset range.

6. The intelligent atomizer and automatic calibration method thereof according to claim 5, characterized in that: In the step S4, calculating and adjusting the rotation speed of the motor (21) according to the value of the flow meter (32) comprises the following steps: S41: Calculating the output power of the motor (21); S42: Calculating a power error according to the set electric power of the motor (21) and the output power of the motor (21); S43: Calculating the speed adjustment amount of the motor (21) using a negative feedback algorithm; S44: Calculating the duty cycle of the speed regulation of the motor (21) and controlling the speed of the motor (21).

7. The method for automatic calibration of an intelligent atomizer according to claim 5, characterized in that: The step S41 includes the following algorithm: P(t)=[p(t)-p(0)]*Q(t) Wherein, P(t) is the output mechanical power; p(t) is the value of the pressure gauge; p(0) is the standard atmospheric pressure; and Q(t) is the flow meter value.

8. The method for automatic calibration of an intelligent atomizer according to claim 5, characterized in that: The step S42 includes the following algorithm: △P(t)=P(0)-k*P(t) Among them, △P(t) is the power error; P(0) is the set electric power; k is the proportional coefficient.

9. The method for automatic calibration of an intelligent atomizer according to claim 5, characterized in that: The step S3 includes the following algorithm: △n(t)=Kp*△P(t)+Ki∫△P(t)+Kd*d△P(t) / dt Among them, △n(t) is the speed adjustment amount; Kp is the proportional coefficient; Ki is the integral coefficient; Kd is the differential coefficient; t is time.

10. The method for automatic calibration of an intelligent atomizer according to claim 5, characterized in that: The step S4 includes the following algorithm: D(t)=(△n(t)-b) / a Where a is the coefficient; b is the offset; and D(t) is the duty cycle.

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