CN111637951A - Photosensitive emulsion liquid level detection device and atomization method - Google Patents

Abstract

The invention provides a photosensitive emulsion liquid level detection device and an atomization method, wherein the device comprises: bottle lid, LED lamp, bottle, base, display screen, liquid level detection module. According to the invention, the corresponding liquid level information is obtained by calculation according to the resistance value change condition when the photoresistor is irradiated by the LED lamp by utilizing the different propagation loss coefficients of light in different media, so that the liquid level information of atomized liquid can be continuously measured and fed back in real time, and the rotating speed of the air pump motor can be adjusted in real time according to the liquid level information to atomize the atomized liquid at the preset target atomization rate, thereby realizing the self-adaptive adjustment of the atomization rate.

Description

A kind of photosensitive emulsion liquid level detection device and atomization method

technical field

The invention relates to the technical field of atomization devices, in particular to a photosensitive emulsion liquid level detection device and an atomization method.

Background technique

The atomizing device decomposes the liquid contained in the liquid container into fine water droplets through the air pump and distributes it in the surrounding environment. It has been widely used in daily life, such as aromatherapy machines in hotels, lobbies and other places.

If the liquid storage container device of the atomization device is a container that does not have the liquid level detection function, but simply stores the liquid, it cannot know the liquid level in time, and does not have the liquid level prompt function, and the user cannot add the atomized liquid in time. Cause the atomizing motor to do useless work and cause unnecessary energy loss, which cannot meet the requirements of green life.

Most of the atomizing motors of the existing atomizing devices work at a fixed speed, and cannot realize feedback adjustment according to the remaining reserves of the atomized liquid. The actual atomization rate of the atomization device is affected by the operating conditions such as the air humidity and temperature of the external environment. If it is used in aromatherapy machines, because the aromatic hydrocarbons in aromatherapy essential oils are low-toxic, and most of them are chemically synthesized, there are many chemical toxins in them, so they will cause great harm to people, and the aroma volatiles of aromatherapy If the concentration is too high, inhaling the strong fragrance for a long time will be harmful to health. Therefore, the self-adaptive adjustment of the atomization rate of the atomization device is very important.

If a high-precision liquid level sensor is used in the atomization device to be installed in the atomization container, the cost will be significantly increased. In addition, most of the existing low-cost liquid level detection devices cannot realize the continuous detection of the liquid level.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is to provide a photosensitive emulsion liquid level detection device and an atomization method, which can perform real-time liquid level detection on the liquid in the atomization device, and adjust the mist in real time according to the liquid level. rate.

In order to solve the above technical problems, an embodiment of the present invention provides a photosensitive emulsion liquid level detection device, including: a bottle cap, an LED light, a bottle body, a base, a display screen, and a liquid level detection module;

The bottle cap has an opening, and the bottle cap is provided with a bracket structure at the opening, the bracket structure is fixedly connected with the bottle cap, the center of the bracket structure coincides with the center of the bottle cap, and the bottle The cover is detachably sleeved on the top of the bottle body;

The LED light is arranged on one end of the support structure close to the bottle body, and the LED light is located above the liquid level of the emulsion in the bottle body;

The bottom of the bottle body is provided with a rectangular groove protruding toward the bottle cap, a photoresistor is installed in the rectangular groove, and electrodes at both ends of the photoresistor are electrically connected to the liquid level detection module through wires, respectively. The photoresistor is used to feed back the resistance value generated when irradiated by the LED lamp to the liquid level detection module;

The display screen is arranged on the outer surface of the bottle, the display screen is electrically connected with the liquid level detection module, and the display screen is used to display the liquid level information of the emulsion in the bottle body;

The liquid level detection module is installed in the base, and the base is detachably sleeved on the bottom of the bottle body;

The liquid level detection module is used to detect the liquid level of the emulsion in the bottle in real time according to the resistance value fed back by the photoresistor, and adjust the rotation speed of the air pump motor according to the liquid level detection result to adjust the bottle. The atomization rate of the emulsion in vivo reaches the target atomization rate corresponding to the liquid level detection result.

As a preferred solution, the bottle cap is cylindrical, and the bottom of the bottle cap is provided with an annular stepped groove adapted to the opening of the bottle body, and the annular stepped groove is close to the cylindrical ring on the side of the opening of the bottle body. The inner diameter of the annular stepped groove is larger than the inner diameter of the cylindrical ring on the side of the annular stepped groove away from the bottle opening, and the height of the cylindrical ring with a larger inner diameter from the top of the bottle cap is greater than the height of the cylindrical ring with a smaller inner diameter from the top of the bottle cap. .

As a preferred solution, the support structure is connected to the inner wall of the cylindrical ring with a smaller inner diameter through three support rods, and the included angle between any two adjacent support rods among the three support rods is 120° °, a tubular cylindrical through hole for connecting the LED lamp is provided at the center where the three support rods meet.

As a preferred solution, one side of the bottle body is provided with an opening, the opening of the bottle body is provided with a stepped cylindrical wall surface adapted to the annular stepped groove of the bottle cap, and the other side of the bottle body is provided with a stepped cylindrical wall surface. The stepped cylindrical wall surface is adapted to the annular stepped groove of the base.

As a preferred solution, the base is cylindrical, one side of the base is provided with an annular stepped groove that matches the stepped cylindrical wall surface of the bottle body, and the base has an interior for installing the liquid level detection module. The outer surface of the base is provided with a switch button, a power input interface and a signal output interface.

As a preferred solution, threads are used for detachable connection between the bottle cap and the bottle body and between the bottle body and the base.

As a preferred solution, the liquid level detection module detects the resistance value of the photoresistor through an AC bridge.

In order to solve the same technical problem, the present invention also provides an atomization method of any one of the photosensitive emulsion liquid level detection devices, including:

Get the first liquid level in the bottle;

If the first liquid level is not zero, adjust the rotation speed of the air pump motor according to the preset atomization rate to perform atomization;

Obtain the second liquid level in the bottle according to the preset time interval, and calculate the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval;

Compare the actual atomization rate with the preset atomization rate, and adjust the rotational speed of the air pump motor according to the comparison result, so that the atomized liquid in the bottle is atomized at the preset atomization rate change;

If the first liquid level is zero, the motor of the air pump is controlled to stop working, and the reminder information of adding the atomized liquid is fed back through the display screen and the alarm.

Compared with the prior art, the present invention has the following beneficial effects:

The embodiments of the present invention provide a photosensitive emulsion liquid level detection device and an atomization method. The device includes a bottle cap, an LED light, a bottle body, a base, a display screen, and a liquid level detection module. The invention utilizes the different propagation loss coefficients of light in different media, and calculates the corresponding liquid level information according to the change of the resistance value of the photoresistor when it is irradiated by the LED lamp, so that the liquid level information of the atomized liquid can be continuously measured and fed back in real time. , and can adjust the rotation speed of the air pump motor in real time according to the liquid level information to atomize the atomized liquid at the preset target atomization rate, so as to realize the self-adaptive adjustment of the atomization rate.

Description of drawings

1 is a schematic structural diagram of a photosensitive emulsion liquid level detection device provided by an embodiment of the present invention;

Fig. 2 is the internal schematic diagram of the photosensitive emulsion liquid level detection device of the embodiment of the present invention;

3 is a schematic structural diagram of the photosensitive emulsion liquid level detection device A according to an embodiment of the present invention;

4 is a schematic structural diagram of a photosensitive emulsion liquid level detection device B according to an embodiment of the present invention;

5 is a schematic structural diagram of the photosensitive emulsion liquid level detection device C according to an embodiment of the present invention;

Fig. 6 is the structural block diagram of the photosensitive emulsion liquid level detection device of the embodiment of the present invention;

7 is a schematic flowchart of an atomization method of a photosensitive emulsion liquid level detection device according to an embodiment of the present invention;

Among them, the reference numerals are explained as follows:

1-through hole, 2-LED light, 3-display screen, 4-liquid level detection module, 5-output port, 6-power input port, 7-switch button, 8-base, 9-wire, 10-bottle body , 11-cap, 12-support structure, 13-metal electrode, 14-photoresistor, 15-pin, 16-detection circuit, 201-display module, 202-liquid level detection unit, 203-emulsion container, 204 - Air pump motor, 205- regulating module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-5, an embodiment of the present invention provides a photosensitive emulsion liquid level detection device, including: a bottle cap 11, an LED light 2, a bottle body 10, a base 8, a display screen 3, and a liquid level detection module 4;

The bottle cap 11 has an opening, and the bottle cap 11 is provided with a bracket structure at the opening, the bracket structure is fixedly connected with the bottle cap 11 , and the center of the bracket structure coincides with the center of the bottle cap 11 , the bottle cap 11 is detachably sleeved on the top of the bottle body 10;

The LED light 2 is arranged on one end of the support structure close to the bottle body 10, and the LED light 2 is located above the liquid level of the emulsion in the bottle body 10;

The bottom of the bottle body 10 is provided with a rectangular groove that protrudes toward the bottle cap 11, and a photoresistor 14 is installed in the rectangular groove. The detection module 4 is electrically connected, and the photoresistor 14 is used for feeding back the resistance value generated by the LED lamp 2 to the liquid level detection module 4;

The display screen 3 is arranged on the outer surface of the bottle body 10 , the display screen 3 is electrically connected with the liquid level detection module 4 , and the display screen 3 is used to display the emulsion in the bottle body 10 liquid level information;

The liquid level detection module 4 is installed in the base 8, and the base 8 is detachably sleeved on the bottom of the bottle body 10;

The liquid level detection module 4 is used to detect the liquid level of the emulsion in the bottle body 10 in real time according to the resistance value fed back by the photoresistor 14, and to adjust the rotational speed of the air pump motor according to the liquid level detection result. , to adjust the atomization rate of the emulsion in the bottle body 10 to the target atomization rate corresponding to the liquid level detection result.

As a preferred solution, the bottle cap 11 is cylindrical, and the bottom of the bottle cap 11 is provided with an annular stepped groove adapted to the opening of the bottle body 10 , and the annular stepped groove is close to the opening of the bottle body 10 . The inner diameter of the cylindrical ring on the side is larger than the inner diameter of the cylindrical ring on the side of the annular stepped groove away from the opening of the bottle body 10, and the height of the cylindrical ring with a larger inner diameter from the top of the bottle cap 11 is greater than the distance from the cylindrical ring with a smaller inner diameter. the height of the top of the bottle cap 11.

As a preferred solution, the support structure is connected to the inner wall of the cylindrical ring with a smaller inner diameter through three support rods, and the included angle between any two adjacent support rods among the three support rods is 120° °, a tubular cylindrical through hole for connecting the LED lamp 2 is provided at the center where the three support rods meet.

In the embodiment of the present invention, the inner side of the cylindrical ring with the smaller inner diameter of the bottle cap 11 is provided with a "herringbone"-shaped three support rod structure bracket, and the lengths of the three support rods are the same as the inner hole radius of the outer ring of the ring, The three support rods are arranged at equal intervals along the circumferential direction, that is, the interval between any two adjacent support rods is 120°. A tubular structure is arranged at the intersection center of the three support rods, and a through hole 1 for fixing the LED lamp 2 is arranged in the tubular structure. In this embodiment, after the LED lamp 2 passes through the through hole 1 at the center intersection of the "herringbone"-shaped support structure 12 of the bottle cap 11 , the LED lamp 2 is positioned and fixed by the pin 15 .

In the embodiment of the present invention, the bottle body 10 is made of a material with strong light-shielding properties, and a light-shielding high-density polyethylene HDPE is selected. HDPE is a kind of translucent shape with high crystallinity and a certain degree of non-polar surface. It has high heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties and environmental stress crack resistance are also good. Hardness, tensile strength and creep are better than low density polyethylene; wear resistance, electrical insulation, toughness and cold resistance are good; chemical stability is good, insoluble in any organic solvent at room temperature, acid, Corrosion of alkalis and various salts. The bottom of the bottle body 10 is provided with an inwardly protruding rectangular groove for installing and fixing the photoresistor 14. Metal electrodes 13 are respectively provided at both ends of the rectangular groove. In detection module 4. The gap between the electrode and the bottom of the bottle body 10 can be sealed and adhered with epoxy resin AB glue.

As a preferred solution, one side of the bottle body 10 is provided with an opening, the opening of the bottle body 10 is provided with a stepped cylindrical wall surface adapted to the annular stepped groove of the bottle cap 11, and the other side of the bottle body 10 is provided. One side is provided with a stepped cylindrical wall surface adapted to the annular stepped groove of the base 8 .

As a preferred solution, the base 8 is cylindrical, one side of the base 8 is provided with an annular stepped groove matching the stepped cylindrical wall surface of the bottle body 10, and the base 8 has a The accommodating cavity of the liquid level detection module 4, the outer surface of the base 8 is provided with a switch button 7, a power input interface and a signal output interface.

As a preferred solution, threads are used for detachable connection between the bottle cap 11 and the bottle body 10 and between the bottle body 10 and the base 8 .

As a preferred solution, the liquid level detection module 4 detects the resistance value of the photoresistor 14 through an AC bridge.

乳浊液所占的比例为

不计光线传播损失，LED灯2照射到光敏电阻14上的总能量为∑。实际上，光线在介质中传播存在损失，LED灯2在空气介质中的传播损失系数为λ₁，在乳浊液介质中的传播损失系数为λ₂，故LED灯2照射到光敏电阻14上的实际能量为

通过实验，建立

的匹配关系，本实施例中a+b为定值，故可得到“Σ_实—b”的匹配关系。根据光敏电阻14的阻值随入射光线(可见光)的强弱变化而变化的特性，建立“Σ_实—R”的匹配关系，即可得到“b—R”的匹配关系。It should be noted that a photosensitive emulsion liquid level detection device provided by the present invention utilizes the LED lamp 2 to illuminate the path of the photosensitive resistor 14 with the medium ratio of air to emulsion changes with the change of the liquid level, and finally The resistance of the photoresistor 14 changes with the change of the liquid level, so that the liquid level can be continuously measured in real time. In this embodiment, the distance between the LED lamp 2 and the photoresistor 14 is a+b, and the LED lamp 2 illuminates the path of the photoresistor 14, and the proportion of air is

The proportion of the emulsion is

Excluding the light propagation loss, the total energy of the LED lamp 2 irradiated on the photoresistor 14 is Σ. In fact, there is a loss in the propagation of light in the medium. The propagation loss coefficient of the LED lamp 2 in the air medium is λ ₁ , and the propagation loss coefficient in the emulsion medium is λ ₂ , so the LED lamp 2 illuminates the photoresistor 14 . The actual energy of

Through experiments, establish

The matching relationship of , in this embodiment a+b is a fixed value, so the matching relationship of "Σ _real - b" can be obtained. According to the characteristic that the resistance of the photoresistor 14 changes with the intensity of incident light (visible light), the matching relationship of "Σ _real -R" can be established, and the matching relationship of "b-R" can be obtained.

随着乳浊液液面的变化，R_x会发生变化，且具有一定的规律，其中检测电压U_e保持恒定，电阻R₁，R₂，R₃均为定值，故当R_x发生具有一定规律的变化时，输出电压U₀也会随之发生具有一定规律的变化。根据前面的“b—R”的匹配关系，在实际工况下建立起“液位b—输出电压U₀”的匹配机制。The detection circuit 16 of a photosensitive emulsion liquid level detection device in this embodiment uses an AC bridge to detect the resistance value of the photoresistor 14, because the photoresistor 14 and its metal electrodes 13 are exposed to the emulsion environment for a long time, Polarization is easy to occur after the direct current is applied. Using an AC bridge to measure the resistance value of the photoresistor 14 can avoid the occurrence of polarization and affect the resistance change, so that the measured liquid level is more reliable and accurate. In the detection circuit 16, set the detection voltage as U _e and the resistance at both ends of the photoresistor 14 as R _x , so the output voltage

With the change of the liquid level of the emulsion, Rx will change, and has a certain law, in which the detection voltage U _e remains constant, and the resistances R ₁ , R ₂ , R ₃ are all constant, so when _{R x occurs} , it has a constant value. When a certain law changes, the output voltage U ₀ will also have a certain law change. According to the previous "b-R" matching relationship, a matching mechanism of "liquid level b-output voltage U ₀ " is established under actual working conditions.

Referring to FIG. 6, it can be understood that a photosensitive emulsion liquid level detection device provided by the present invention includes five parts, a display module 201, a liquid level detection unit 202, an emulsion container 203, an air pump motor 204 and Adjustment module 205 . The liquid level detection unit 202 is used to detect the residual amount of the emulsion in the emulsion container 203, and then, on the one hand, the air pump motor 204 is adjusted to work at a preset atomization rate through the adjustment module 205, and on the other hand, through the display module 201 The liquid level height and its related attribute parameters are presented on the display screen 3 .

In order to solve the same technical problem, the present invention also provides an atomization method of any one of the photosensitive emulsion liquid level detection devices, comprising the steps of:

Obtain the first liquid level in the bottle body 10;

If the first liquid level is not zero, adjust the rotation speed of the air pump motor according to the preset atomization rate to perform atomization;

Acquire the second liquid level in the bottle body 10 according to the preset time interval, and calculate the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval;

Compare the actual atomization rate with the preset atomization rate, and adjust the rotational speed of the air pump motor according to the comparison result, so that the atomized liquid in the bottle body 10 is at the preset atomization rate to atomize;

If the first liquid level is zero, the motor of the air pump is controlled to stop working, and the reminder information for adding the atomized liquid is fed back through the display screen 3 and the alarm.

It should be noted that, for the purpose of simple description, the above method or process embodiments are described as a series of action combinations, but those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequence. Limitation, because according to embodiments of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

Please refer to FIG. 7, based on the above scheme, in order to better understand the atomization method of the photosensitive emulsion liquid level detection device provided by the embodiment of the present invention, the following specific examples are described:

Step 301, preset the atomization rate, and start the atomization work:

The preset atomization rate can be modified according to the needs of the user or the environment where the atomization device is located, so as to meet the needs of different users and achieve the most appropriate control effect.

Step 302, obtaining the first liquid level:

The turbid liquid level in the bottle at the beginning of atomization is obtained through the liquid level detection system as the first liquid level.

Step 303, judging whether the first liquid level is zero;

Step 304a, if the first liquid level is not zero, according to the preset atomization rate, match the speed of the air pump motor and start:

According to the atomization rate set by the user, the system automatically matches the speed of the corresponding air pump motor, and the speed of the air pump motor can be achieved by controlling the driving voltage of the motor.

Step 304b, if the first liquid level is zero, the air pump motor stops working, and reminds the user to add liquid through the display screen 3 and the alarm;

Step 305, set the atomization time interval, and obtain the second liquid level:

Set a certain atomization time interval, and read the liquid level of the emulsion in the bottle at this time as the second liquid level. The setting of the atomization time interval can be 1s, 2s, 3s, 4s, ..., the size of the atomization time interval determines that the total actual atomization time is closer to the preset atomization time, and the atomization time interval is shorter. , the closer it is to the preset atomization time, the greater the amount of calculation required for the program, so an appropriate atomization time interval should be selected. In the embodiment of the present invention, the atomization time interval is set to 5s.

Step 306: Calculate the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the atomization time interval:

The actual atomization rate is calculated as the liquid level difference between the first liquid level and the second liquid level divided by the time it takes for the emulsion level in the bottle to be atomized from the first liquid level to the second liquid level, that is, the set atomization time interval.

Step 307, compare the actual atomization rate with the preset atomization rate, adjust the air pump motor, and continue atomization according to the preset atomization rate:

If the actual atomization rate is greater than the preset atomization rate, the driving voltage of the air pump motor is reduced; if the actual atomization rate is less than the preset atomization rate, the driving voltage of the air pump motor is increased. When the driving voltage is adjusted again, continue to atomize.

Next, steps 302 to 307 are repeated in sequence until the atomization ends.

The working process of the embodiment of the present invention is as follows: first, connect the power cord to the power input port 6, connect the air pump motor to the output port 5, activate the switch button 7, the atomizing device starts to atomize, and the air pump motor confuses the liquid in the bottle with the air Zhongtong is pumped to the external environment, relying on closed-loop control to make the actual atomization rate of the atomization device always maintain the preset atomization rate for atomization.

To sum up, the embodiments of the present invention provide a photosensitive emulsion liquid level detection device and atomization method, which utilizes that the propagation loss coefficients of light in different media are different. When the liquid level in the bottle changes, the LED lamp 2 illuminates. The medium ratio of air to liquid in the path to the photoresistor 14 changes accordingly, and finally the resistance of the photoresistor 14 changes with the change of the liquid level, which can continuously measure the liquid level in real time, and adjust the air pump motor according to the preset atomization rate. Atomize. The structure is simple, the cost is low, and the more reliable and accurate continuous detection of the liquid level can be realized.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made, and these improvements and modifications may also be regarded as It is the protection scope of the present invention.

Claims (8)

1. a photosensitive emulsion liquid level detection device, is characterized in that, comprises: bottle cap, LED lamp, bottle body, base, display screen, liquid level detection module; The bottle cap has an opening, and the bottle cap is provided with a bracket structure at the opening, the bracket structure is fixedly connected with the bottle cap, the center of the bracket structure coincides with the center of the bottle cap, and the bottle The cover is detachably sleeved on the top of the bottle body; The LED light is arranged on one end of the support structure close to the bottle body, and the LED light is located above the liquid level of the emulsion in the bottle body; The bottom of the bottle body is provided with a rectangular groove protruding toward the bottle cap, a photoresistor is installed in the rectangular groove, and electrodes at both ends of the photoresistor are electrically connected to the liquid level detection module through wires, respectively. The photoresistor is used to feed back the resistance value generated when irradiated by the LED lamp to the liquid level detection module; The display screen is arranged on the outer surface of the bottle, the display screen is electrically connected with the liquid level detection module, and the display screen is used to display the liquid level information of the emulsion in the bottle body; The liquid level detection module is installed in the base, and the base is detachably sleeved on the bottom of the bottle body; The liquid level detection module is used to detect the liquid level of the emulsion in the bottle in real time according to the resistance value fed back by the photoresistor, and adjust the rotation speed of the air pump motor according to the liquid level detection result to adjust the bottle. The atomization rate of the emulsion in vivo reaches the target atomization rate corresponding to the liquid level detection result. 2 . The photosensitive emulsion liquid level detection device according to claim 1 , wherein the bottle cap is cylindrical, and the bottom of the bottle cap is provided with an annular ring adapted to the opening of the bottle body. 3 . Step groove, the inner diameter of the cylindrical ring on the side of the annular stepped groove close to the opening of the bottle body is larger than the inner diameter of the cylindrical ring on the side of the annular stepped groove away from the opening of the bottle body, and the cylindrical ring with a larger inner diameter is farther away from the bottle The height of the top of the cap is greater than the height of the cylindrical ring with smaller inner diameter from the top of the bottle cap. 3. The photosensitive emulsion liquid level detection device according to claim 2, wherein the support structure is connected with the inner wall of the cylindrical ring with the smaller inner diameter through three support rods, and the three The included angle between any two adjacent support rods in each of the support rods is 120°, and a tubular cylindrical through hole for connecting the LED lights is provided at the center where the three support rods meet. 4. The photosensitive emulsion liquid level detection device according to claim 3, wherein one side of the bottle body is provided with an opening, and the opening of the bottle body is provided with an annular step with the bottle cap A stepped cylindrical wall surface adapted to the groove, and the other side of the bottle body is provided with a stepped cylindrical wall surface adapted to the annular stepped groove of the base. 5 . The photosensitive emulsion liquid level detection device according to claim 4 , wherein the base is cylindrical, and one side of the base is provided with a stepped cylindrical wall surface that is adapted to the bottle body. 6 . The base has a accommodating cavity for installing the liquid level detection module, and the outer surface of the base is provided with a switch button, a power input interface and a signal output interface. 6. The photosensitive emulsion liquid level detection device according to claim 1, characterized in that, threads are used between the bottle cap and the bottle body, and between the bottle body and the base. Remove the connection. 7 . The photosensitive emulsion liquid level detection device according to claim 1 , wherein the liquid level detection module detects the resistance value of the photoresistor through an AC bridge. 8 . 8. A method for atomization of the photosensitive emulsion liquid level detection device according to any one of claims 1-7, characterized in that, comprising: Get the first liquid level in the bottle; If the first liquid level is not zero, adjust the rotation speed of the air pump motor according to the preset atomization rate to perform atomization; Obtain the second liquid level in the bottle according to the preset time interval, and calculate the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval; Compare the actual atomization rate with the preset atomization rate, and adjust the rotational speed of the air pump motor according to the comparison result, so that the atomized liquid in the bottle is atomized at the preset atomization rate change; If the first liquid level is zero, the motor of the air pump is controlled to stop working, and the reminder information of adding the atomized liquid is fed back through the display screen and the alarm.

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