Automatic liquid adding method and system for salt sol generating device

Abstract

The invention relates to the field of medical instruments, and discloses an automatic liquid adding method and system for a salt sol generation device, and the automatic liquid adding method comprises the following steps: setting a single liquid adding amount parameter; liquid level information of the salt mist generator is obtained, and whether liquid adding is needed or not is judged; a liquid adding signal is sent out, and a liquid adding module is controlled to add liquid according to the set single-time liquid adding amount parameter; and detecting whether the liquid cannot be fully added at the last time, and starting a last liquid adding control program if detecting that the liquid cannot be fully added. By means of the salt mist generator, liquid can be automatically supplemented when the liquid level of the solution in the salt mist generator is lower than the set threshold value, dry burning is avoided, meanwhile, a user does not need to manually add liquid, the workload of the user is reduced, and in addition, the treatment time of each treatment course and the stability of the salt sol concentration can be guaranteed through the last-time liquid adding control program.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular, to an automatic liquid adding method and system for a salt aerosol generating device. Background Art

[0002] Rock salt aerosol therapy (salt aerosol therapy) is a salt therapy method in which salt aerosol with a particle size less than 5 microns is generated, and the patient inhales the salt aerosol into the lungs to directly act on the respiratory system for treatment, which can prevent, improve, and treat respiratory diseases.

[0003] A rock salt aerosol therapy instrument based on a salt solution to generate rock salt aerosol includes a salt mist generator, an evaporation device, and a ventilation device. The salt mist generator atomizes the salt solution into fine droplets of salt mist through an atomization sheet. The evaporation device evaporates and dries the water in the salt mist to form salt particles. The ventilation device blows fresh air into the evaporation device. On the one hand, it speeds up the evaporation rate of the salt mist, and on the other hand, it blows out the dried salt particles to form salt aerosol. The salt aerosol particles formed by this method have a small particle size and uniform particle size, so that they can enter the bronchioles and alveoli of the human lungs for treatment, directly reach the lesion site, and achieve better treatment effects.

[0004] After the salt solution stored in the atomization cup of the rock salt aerosol therapy instrument is consumed, it is necessary to replenish the salt solution to continue generating salt aerosol. At present, the liquid replenishing structure for the salt mist generator is relatively complex, the liquid adding is inconvenient, and manual liquid adding is required, and frequent operations are needed, which adds an extra burden to the user. Summary of the Invention

[0005] To solve the above problem of inconvenient liquid adding, the present invention provides an automatic liquid adding method, which can automatically replenish liquid when the salt solution in the atomization chamber of the salt mist generator reaches the lowest liquid level threshold, without manual liquid replacement and replenishment.

[0006] To achieve the above object, the technical solution proposed by the present invention is an automatic liquid adding method for a salt aerosol generating device, including the following steps: S1 Set the parameter of the single liquid adding amount; S2 Obtain the liquid level information of the salt mist generator and determine whether liquid adding is required; S3 Send a liquid adding signal and control the liquid adding module to add liquid according to the set parameter of the single liquid adding amount.

[0007] Specifically, in the step S1, the parameter of the single liquid adding amount is one of the highest liquid level threshold parameter, the liquid adding time parameter, and the rotation speed of the liquid adding device.

[0008] Further, the step S2 includes the following steps: S201 Set the lowest liquid level threshold of the salt solution in the salt mist generator; S202 Detect the liquid level information through the liquid level detection module; S203 When it is detected that the liquid level reaches the set minimum liquid level threshold, start the liquid adding program.

[0009] Further, in step S3, when the control module obtains the liquid adding signal, it controls the liquid adding module to start adding liquid. One control scheme for the single - time liquid adding volume is: set the maximum liquid level threshold. When the liquid level detection module detects that the liquid level reaches the maximum liquid level threshold, the liquid adding module automatically stops adding liquid.

[0010] Further, in step S3, when the control module obtains the liquid adding signal, it controls the liquid adding module to start adding liquid. Another control scheme for the single - time liquid adding volume is: set the single - time liquid adding time. When the set liquid adding time is reached, stop adding liquid automatically; Further, in step S3, when the control module obtains the liquid adding signal, it controls the liquid adding module to start adding liquid. Another control scheme for the single - time liquid adding volume is: set the rotation speed of the liquid adding device. When the rotation speed reaches the set value, the liquid adding device automatically stops working.

[0011] Specifically, the liquid adding device is a suction pump, and the rotation speed of the liquid adding device is specifically the number of rotations of the impeller of the suction pump.

[0012] Further, when the liquid adding scheme adopts single - time liquid adding time control or suction pump rotation speed control, when it is detected that the liquid level in the salt spray generator reaches the maximum liquid level threshold, regardless of whether the set liquid adding time or the suction pump rotation speed reaches the preset value, stop adding liquid automatically.

[0013] Further, it also includes the judgment of the last liquid adding volume. During the process of starting the liquid adding by the liquid adding module, the liquid information entering the salt spray generator is detected in real - time. If it is detected that no liquid enters the salt spray generator during the liquid adding process, it is judged that the remaining solution volume in the liquid storage device is not enough to fill the set single - time liquid adding volume.

[0014] The meaning of the last liquid adding volume is: the reserve solution stored in the liquid storage device is not infinite. When the suction liquid adding is performed n times, it will be exhausted. It can be known that for the first n - 1 times of suction liquid adding, sufficient solution can be added according to the set single - time liquid adding volume parameters. The nth liquid adding is the last liquid adding. At this time, the reserve solution volume in the liquid storage device is less than or equal to the single - time liquid adding volume, and there is a situation where the set single - time liquid adding volume cannot be filled.

[0015] Specifically, the liquid storage device is a device for storing reserve solution such as a liquid storage bottle or a liquid storage tank.

[0016] When the last solution in the liquid storage device is not enough to fill the liquid storage cavity of the salt spray generator, in a design scheme, when the remaining solution volume in the liquid storage device is not enough to fill the set single - time liquid adding volume, start the reverse suction program. Specifically: The suction device stops the liquid adding action; Reverse suction the solution that has been added to the salt spray generator back into the liquid storage device; Remove the liquid storage device and replace it with a new one filled with sufficient solution; Then perform the liquid addition step according to the set liquid addition volume parameter.

[0017] Another design solution when the solution in the liquid storage device is not enough to fill the liquid storage chamber of the salt spray generator for the last time. When the remaining solution volume in the liquid storage device is not enough to fill the set single liquid addition volume, the following steps are carried out: The suction device stops the liquid addition operation; Generate salt sol from the solution that has been supplemented into the salt spray generator according to the working parameters of the rock salt aerosol generating equipment set; Send an alarm signal and automatically shut down and stop working after the salt solution in the salt spray generator is consumed; Remove the liquid storage device with depleted solution and replace it with a new one filled with sufficient solution; Then perform the liquid addition step according to the set liquid addition volume parameter.

[0018] Furthermore, it further includes obtaining the position information of the liquid storage device and judging whether the liquid storage device is in the correct position.

[0019] Specifically, if the position of the liquid storage device is correct, continue to operate; if the position of the liquid storage device is incorrect, an alarm message is sent.

[0020] An automatic liquid addition system is also disclosed, which is used to realize the automatic liquid addition method of the above salt sol generating device, including a control module, a detection module and a liquid addition module. The control module is respectively connected to the detection module and the liquid addition module; The detection module includes a liquid level sensor, which is used to detect the liquid level information of the salt spray generator and upload the liquid level signal to the control module; The control module obtains the signal detected by the detection module and processes it, and issues a control signal according to the processing result to control the operation of the liquid addition module; The liquid addition module includes a liquid addition device and a liquid storage device. The liquid storage device is sequentially connected to the liquid addition device and the salt spray generator through a liquid inlet pipeline. After receiving the liquid addition signal issued by the control module, the liquid addition device starts to work and imports the standby solution in the liquid storage device into the salt spray generator.

[0021] Furthermore, the detection module further includes a liquid sensor, which is arranged in the liquid inlet pipeline between the liquid storage device and the salt spray generator, or at the liquid inlet of the salt spray generator, and is used to detect the liquid information entering the salt spray generator through the liquid inlet pipeline when the liquid addition device is working.

[0022] Specifically, the liquid information refers to that during the process of the liquid adding device starting to add liquid to the salt spray generator, it is detected whether the liquid flowing into the salt spray generator is a solution. If a solution signal is detected, it indicates normal liquid addition; if no solution signal is detected, it indicates that the solution in the liquid storage device is exhausted and the salt spray generator cannot be replenished with solution continuously.

[0023] Specifically, the liquid sensor is arranged at the liquid adding port inside the salt spray generator and is connected to the control module. It can collect the liquid information entering the salt spray generator in real time and transmit the collected information to the control module. The control module receives the signal from the liquid sensor, analyzes and judges, and controls the working mode of the liquid adding device and the start and stop of the salt sol generating device according to the judgment result.

[0024] Furthermore, it also includes a manual control button, which can manually start the work of the liquid adding module.

[0025] Advantages of the present invention: 1. By setting the liquid adding amount parameter and detecting the liquid level information in real time, when the liquid level in the salt spray generator is lower than the set low liquid level threshold, the liquid adding program is automatically started for liquid addition, eliminating the need for manual liquid addition by disassembling the machine, solving the problem of inconvenient liquid addition, and reducing the workload of users. 2. By setting the judgment of the last liquid adding amount, when the spare solution is not enough to fill up, through the last liquid adding control program, the insufficient solution in the salt spray generator is pumped out reversely. After the user replaces the liquid storage device with sufficient spare salt solution and then starts the liquid adding program, the sufficient solution is automatically added according to the set liquid adding amount, ensuring the stability of the treatment time and salt sol concentration for each treatment course, and avoiding the reduction of the treatment time or even dry burning caused by insufficient solution. 3. Through the judgment of the last liquid adding amount, when the spare solution in the liquid storage device is exhausted, the liquid adding device automatically stops working, the salt sol generating device starts to work, and a solution shortage alarm signal is sent out. After the user waits for the current solution to be exhausted, replaces the liquid storage device with sufficient spare salt solution, and then starts the liquid adding program, the sufficient solution is automatically added according to the set liquid adding amount, which can avoid solution waste and use all the solution for treatment. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. For those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

[0027] Figure 1This is the automatic liquid addition control flowchart of the present invention; Figure 2 This is the relationship diagram of the automatic liquid addition system of the present invention; Figure 3 This is the structural schematic diagram of an embodiment of the automatic liquid addition system of the present invention; Figure 4 This is the structural schematic diagram of another embodiment of the automatic liquid addition system of the present invention.

[0028] Wherein: 1. Salt spray generator; 2. Control module; 3. Liquid addition device; 4. Liquid storage device; 5. Liquid level detection module; 6. Liquid inlet pipeline; 61. First one-way valve; 7. Liquid outlet pipeline; 71. Second one-way valve; 8. Liquid sensor. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "connected" and "connected" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, and can also be the connection inside two components. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0031] The described connection can be a fixed connection, a movable connection, an electrical connection or a signal connection.

[0032] Refer to Figure 1 As shown, an embodiment of an automatic liquid addition method for a salt sol generation device includes the following steps: S1 Set the single liquid addition amount parameter; S2 Obtain the liquid level information of the salt spray generator and determine whether liquid addition is required; S3 Send a liquid addition signal to control the liquid addition module to perform liquid addition according to the set single liquid addition amount parameter.

[0033] In step S1, the single liquid addition amount parameter is one of the highest liquid level threshold parameter, liquid addition time parameter, and the rotation speed of the liquid addition device.

[0034] Specifically, the salt solution consumption for a single treatment course is set according to information such as the treatment scenario and the patient's condition. The single liquid addition amount parameter is set according to the consumption of a single treatment course and the remaining solution amount in the salt mist generator. The single liquid addition amount parameter can be controlled by setting the highest liquid level threshold. When it is detected that the solution reaches the highest liquid level threshold, the liquid addition stops; the liquid addition time can also be set according to the liquid addition speed of the liquid addition device and the single liquid addition amount. When the set time for the operation of the liquid addition device elapses, the liquid addition automatically stops; the number of rotations of the impeller of the liquid addition device can also be set according to the single liquid addition amount and the solution delivery amount per rotation of the impeller of the liquid addition device. When the number of rotations of the impeller reaches the set number of rotations, the liquid addition device automatically stops adding liquid.

[0035] In a further embodiment, step S2 includes the following steps: S201 Set the lowest liquid level threshold of the salt solution in the salt mist generator; S202 Detect the liquid level information through the liquid level detection module; S203 When it is detected that the liquid level reaches the set lowest liquid level threshold, start the liquid addition program.

[0036] In this embodiment, the liquid level information is collected by a liquid level sensor. When the liquid level sensor detects that the liquid level of the salt solution in the atomization generator reaches the set lowest liquid level threshold, a low liquid level signal is sent to the control module. The control module controls the atomization generator to stop working and simultaneously controls the liquid addition device to start adding liquid.

[0037] In a further embodiment, in step S3, when the control module obtains the liquid addition signal, it controls the liquid addition module to start adding liquid. There are various control schemes for the single liquid addition amount; one of them is: set the highest liquid level threshold. When the liquid level detection module detects that the liquid level reaches the highest liquid level threshold, the liquid addition module automatically stops adding liquid.

[0038] Another control scheme is: set the single liquid addition time, and automatically stop adding liquid when the set liquid addition time is reached; Another control scheme is: set the number of rotations of the liquid addition device. When the number of rotations reaches the set value, the liquid addition device automatically stops working.

[0039] It should be noted that when the liquid addition scheme uses single liquid addition time control or suction pump rotation speed control, when it is detected that the liquid level in the salt mist generator reaches the highest liquid level threshold, regardless of whether the set liquid addition time or the rotation speed of the suction pump reaches the preset value, the liquid addition automatically stops to avoid solution overflow.

[0040] In this embodiment, the liquid addition device used is a suction pump. The single liquid addition amount is controlled by setting the number of rotations of the impeller of the suction pump, and the start and stop of the suction pump are controlled by on / off power. When the number of rotations of the suction pump reaches the preset value, the power supply is automatically disconnected and the suction pump stops working.

[0041] It can be known that the liquid storage device can be a device for storing standby solutions such as a liquid storage bottle or a liquid storage tank.

[0042] In this embodiment, the liquid storage device used is a liquid storage bottle.

[0043] In a further embodiment, a judgment of the last liquid addition amount is also set. During the liquid addition process started by the liquid addition module, the liquid information entering the salt spray generator is detected in real time. If it is detected that no liquid enters the salt spray generator during the liquid addition process, it is judged that the remaining solution amount in the liquid storage device is insufficient to fill the set single liquid addition amount.

[0044] The meaning of the last liquid addition amount is as follows: The standby solution stored in the liquid storage device is not infinite and will be exhausted after sucking and adding liquid n times. It can be known that in the first n - 1 times of sucking and adding liquid, sufficient solution can be added according to the set single liquid addition amount parameter. The nth liquid addition is the last liquid addition. At this time, the amount of standby solution in the liquid storage device is less than or equal to the single liquid addition amount, and there is a situation where the set single liquid addition amount cannot be filled.

[0045] Exemplarily, a liquid sensor is set at the liquid addition port in the salt spray generator. The single liquid addition amount is set to 30 ml, and the liquid storage bottle stores 600 ml of standby solution. Theoretically, the standby solution in the liquid storage bottle can be exhausted after filling the salt spray generator with sufficient liquid 20 times. However, due to possible deviations in each liquid addition, after 19 times of liquid addition, the remaining standby solution amount in the liquid storage bottle is only 20 ml, which is not enough to fill the single liquid addition amount of 30 ml, and the user does not notice that the standby solution is insufficient. When the 20th liquid addition is made, before the standby solution is exhausted, the liquid sensor senses that the liquid flows into the salt spray generator. When the standby solution in the liquid storage bottle is sucked out completely, the liquid sensor does not sense the liquid flowing in. At this time, it is judged that it is not enough to fill 30 ml.

[0046] When it is detected that the remaining solution is insufficient and the single liquid addition amount cannot be filled, an emergency procedure is started. In the present invention, two schemes are designed for the emergency procedure.

[0047] One design scheme is that when it is detected that the remaining solution amount in the liquid storage device is insufficient to fill the set single liquid addition amount, a reverse suction procedure is started. Specifically: The suction device stops the liquid addition operation; The solution that has been added to the salt spray generator is reversely sucked back into the liquid storage device; The liquid storage device is taken out and replaced with a new liquid storage device storing sufficient solution; Then, the liquid addition step is carried out according to the set liquid addition amount parameter.

[0048] Another design scheme is that when it is detected that the remaining solution amount in the liquid storage device is insufficient to fill the set single liquid addition amount, the following steps are carried out: The suction device stops the liquid addition operation; Generate salt sol according to the working parameters of the rock salt aerosol generating device set for the solution that has been replenished into the salt fog generator; Send an alarm signal and automatically shut down and stop working after the salt solution in the salt fog generator is consumed; Take out the liquid storage device with depleted solution and replace it with a new liquid storage device storing sufficient solution; Then perform the liquid addition step according to the set liquid addition amount parameter.

[0049] In a further embodiment, position information of the liquid storage device is also acquired to determine whether the liquid storage device is in the correct position. If the position of the liquid storage device is correct, continue to operate; if the position of the liquid storage device is incorrect, an alarm message is sent to notify the user that the position of the liquid storage device is incorrect.

[0050] It can be known that the incorrect position of the liquid storage device includes two situations: not placed and incorrect placement position. The user places or adjusts the position of the liquid storage device according to the specific situation.

[0051] As Figure 2 shown, an embodiment of an automatic liquid addition system for realizing automatic liquid addition to a salt sol generating device, including a control module, a detection module and a liquid addition module, the control module is respectively connected to the detection module and the liquid addition module; The detection module is used to detect the liquid level information of the salt fog generator; The control module acquires the liquid level signal collected by the detection module and processes it, and controls the operation of the liquid addition module according to the processing result; The liquid addition module includes a liquid addition device and a liquid storage device. After receiving the opening signal sent by the control module, the liquid addition device starts to work and imports the spare solution in the liquid storage device into the salt fog generator.

[0052] As Figure 3 shown, a structural example of an automatic liquid addition system, the liquid level detection module 5 is a liquid level sensor and is arranged on the salt fog generator 1; The liquid storage device 4 is communicated with the atomization generator 1 through the liquid addition device 3; Both the liquid level detection module 5 and the liquid addition device 4 are connected to the control module 2.

[0053] When the liquid level in the salt fog generator 1 is lower than the set low liquid level threshold, the liquid level sensor 5 transmits the low liquid level signal to the control module 2. The control module 2 controls the salt fog generator 1 to stop working, and controls the liquid addition device 3 to start working to import the spare solution in the liquid storage device 4 into the atomization generator 1. After reaching the preset liquid addition amount, the liquid addition device 3 automatically stops.

[0054] As Figure 3As shown, in a further embodiment, a liquid sensor 8 is also provided at the liquid inlet of the salt spray generator 1. The liquid sensor 8 is connected to the control module 2 and is used to collect the liquid signal introduced into the atomization generator 1 by the liquid adding device 3. The salt spray generator 1 is provided with a liquid inlet pipeline 6 and a liquid outlet pipeline 7. A first one-way valve 61 is provided on the liquid inlet pipeline 6, and the solution can only enter the salt spray generator 1 from the liquid storage device 4. A second one-way valve 71 is provided on the liquid outlet pipeline 7, and the solution can only flow out of the salt spray generator 1 into the liquid storage device 4.

[0055] It can be known that the liquid sensor 8 can be set at any position on the liquid inlet pipeline 6 between the liquid storage device 4 and the salt spray generator 1, and is used to detect whether the solution flows into the salt spray generator 1 when the liquid adding device 3 works.

[0056] In this embodiment, the liquid sensor 8 is set at the liquid inlet inside the salt spray generator 1 to avoid the hysteresis of the liquid signal.

[0057] The control module 2 receives the signal of the liquid sensor 8, analyzes and judges whether the solution or air is added to the salt spray generator 1, and controls the working mode of the liquid adding device 3 and the start and stop of the salt sol generating device according to the judgment result.

[0058] The working modes of the liquid adding device 3 include: normal working for liquid adding, reversing to pump out the solution in the salt spray generator 1, and stopping working.

[0059] When adding liquid, the liquid adding device 1 works, and the spare solution in the liquid storage device 4 is introduced into the salt spray generator 1 through the liquid inlet pipeline 6 and the first one-way valve 61. The second one-way valve 71 prevents the solution in the salt spray generator 1 from flowing out through the liquid outlet pipeline 7.

[0060] When it is detected that the last liquid adding amount is not enough to fill up, the reverse pumping scheme is carried out. At this time, the liquid adding device 3 reverses, and the solution in the salt spray generator 1 flows out to the liquid storage device 4 through the liquid outlet pipeline 7 and the second one-way valve 71. The first one-way valve 61 prevents air from entering through the liquid inlet pipeline 6.

[0061] As Figure 4 As shown, in another embodiment, the salt spray generator is provided with a liquid inlet pipeline 6. A liquid sensor 8 is provided at the liquid outlet of the liquid inlet pipeline 6 (i.e., the liquid inlet of the salt spray generator). The liquid sensor 8 is signal-connected to the control module 2. During the liquid adding process, when the liquid sensor 8 detects that there is no liquid in the liquid inlet pipeline, it means that the spare solution in the liquid storage device 4 is consumed. After the control module 2 receives the signal of the liquid sensor 8, it controls the liquid adding device 3 to stop adding liquid and issues an alarm signal. At the same time, the liquid adding device 3 reverses to return the solution in the salt spray generator 1 to the liquid storage device 4 through the liquid inlet pipeline 8.

[0062] In a further embodiment, when the salt spray generator 1 needs to be cleaned, the cleaning agent can be introduced into the salt spray generator 1 through the liquid adding device 3 for cleaning, and then the cleaning liquid in the salt spray generator 1 can be pumped out through the reverse pumping program.

[0063] In a further embodiment, it further includes a manual control button for manually starting the operation of the liquid adding device 3.

[0064] When it is necessary to restart the liquid adding program after dealing with insufficient last liquid addition, or after cleaning, there is no solution in the salt spray generator 1, and the salt sol generating device cannot be directly started to avoid dry burning damage. At this time, the liquid adding program can be started by controlling the manual liquid adding button. After the liquid adding device 3 adds liquid according to the set liquid adding amount parameter, it automatically stops, and the salt sol generating device starts to work.

[0065] In the present invention, the salt is sodium chloride; the solution is a salt solution, specifically a sodium chloride solution formed after sodium chloride is dissolved in water; the salt sol, the salt aerosol, and the rock salt aerosol are all solid aerosols formed by salt particles diffusing in the air.

[0066] Although the preferred embodiments of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many specific transformations in form without departing from the spirit of the invention and the scope protected by the claims. All of these fall within the protection scope of the present invention.

Claims

1. An automatic liquid addition method for a salt sol generation device, characterized in that, It includes the following steps: S1 Set the parameter of single liquid addition volume; S2 Obtain the liquid level information of the salt spray generator and determine whether liquid addition is required; S3 Send a liquid addition signal to control the liquid addition module to perform liquid addition according to the set parameter of single liquid addition volume.

2. The automatic liquid addition method of the salt sol generating device according to claim 1, characterized in that In step S1, the parameter of single liquid addition volume is one of the highest liquid level threshold parameter, liquid addition time parameter, and rotation speed of the liquid addition device.

3. The automatic liquid addition method of the salt sol generating device according to claim 2, characterized in that The specific content of step S2 is as follows: S201 Set the lowest liquid level threshold of the salt solution in the salt spray generator; S202 Detect the liquid level information through the liquid level detection module; S203 When it is detected that the liquid level reaches the set lowest liquid level threshold, start the liquid addition program.

4. The automatic liquid addition method of the salt sol generating device according to claim 3, characterized in that The specific content of step S3 is that the control module obtains the liquid addition signal, controls the liquid addition module to start for liquid addition, and the single liquid addition volume is controlled according to the following logic: Set the highest liquid level threshold. When the liquid level detection module detects that the liquid level reaches the highest liquid level threshold, the liquid addition module automatically stops liquid addition; Or, set the single liquid addition time. When the set liquid addition time is reached, automatically stop liquid addition; Or, set the rotation speed of the liquid addition device. When the rotation speed reaches the set value, the liquid addition device automatically stops working.

5. The automatic liquid addition method of the salt sol generating device according to claim 4, characterized in that, It also includes the judgment of the last liquid addition volume. The liquid information entering the salt spray generator during the liquid addition process of the liquid addition module is detected in real time. If it is detected that no liquid enters the salt spray generator during the liquid addition process, and it is judged that the remaining solution volume in the liquid storage device is insufficient to fill the set single liquid addition volume, then start the last liquid addition control program.

6. The automatic liquid addition method of the salt sol generating device according to claim 5, characterized in that, The last liquid addition control program includes a reverse suction program, and the specific content is as follows: The suction device stops the liquid addition operation; Reverse suction the solution that has been added to the salt spray generator back to the liquid storage device; Take out the liquid storage device and replace it with a new liquid storage device storing sufficient solution; Then perform the liquid addition step according to the set liquid addition volume parameter.

7. The automatic liquid adding method of the salt sol generating device according to claim 5, characterized in that, The last control program includes a solution consumption program, which is carried out according to the following steps: The suction device stops the liquid addition operation; Generate salt sol according to the set working parameters of the rock salt aerosol generating device for the solution that has been replenished to the salt spray generator; Send an alarm signal and automatically shut down and stop working after the salt solution in the salt spray generator is consumed; Take out the liquid storage device with depleted solution and replace it with a new liquid storage device; Then perform the liquid addition step according to the set liquid addition volume parameter.

8. The automatic liquid addition method of the salt sol generating device according to any one of claims 1 to 7, characterized in that, It also includes obtaining the position information of the liquid storage device, judging whether the placement position of the liquid storage device is correct, and if the position of the liquid storage device is incorrect, send an alarm message.

9. An automatic liquid adding system for implementing the automatic liquid adding method of the salt sol generating device according to any one of claims 1 to 8, characterized in that, It includes a control module, a detection module, and a liquid addition module. The control module is respectively connected to the detection module and the liquid addition module; The detection module includes a liquid level sensor and a liquid sensor. The liquid level sensor is arranged on the salt spray generator and is used to detect the liquid level information of the salt spray generator and transmit the liquid level signal to the control module; The liquid sensor is arranged in the liquid inlet pipeline or at the liquid inlet of the salt spray generator and is used to detect the liquid information flowing into the salt spray generator through the liquid inlet pipeline and transmit the liquid signal to the control module; The control module obtains the signals detected by the detection module and processes them, and issues a control signal according to the processing result to control the operation of the liquid addition module; The liquid adding module includes a liquid adding device and a liquid storage device. The liquid storage device is sequentially connected to the liquid adding device and the salt spray generator through a liquid adding pipeline. The liquid adding device receives a signal sent by the control module to operate, and introduces the standby solution in the liquid storage device into the salt spray generator, or pumps the solution in the salt spray generator back into the liquid storage device.

10. The automatic liquid adding system according to claim 9 further includes a manual control button, and the manual control button is used to manually control the opening of the liquid adding module.

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