CN116099230B - Intelligent ultrasonic extraction device based on Internet of things - Google Patents
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Abstract
The invention relates to the technical field of ultrasonic extraction, in particular to an intelligent ultrasonic extraction device based on the Internet of things.
Description
Technical Field
The invention relates to the technical field of ultrasonic extraction, in particular to an intelligent ultrasonic extraction device based on the Internet of things.
Background
Ultrasonic extraction refers to a mature extraction technology which uses an ultrasonic extractor, utilizes the strong cavitation response effect, mechanical vibration, disturbance effect, high acceleration, emulsification, diffusion, fragmentation, stirring effect and other multistage effects generated by ultrasonic radiation pressure, increases the molecular movement frequency and speed of substances, and increases the penetrating power of a solvent, thereby accelerating the target component to enter the solvent and promoting the extraction. The ultrasonic extraction technology has the advantages of wide applicable extractant range, common extractants such as water, methanol, ethanol and the like, simple operation, high extraction efficiency and the like.
Chinese patent publication No.: CN113680100B discloses an ultrasonic extraction device for pharmacy, which comprises a shell, wherein an extraction cavity is arranged in the shell, a feeding port is arranged on the upper end surface of the extraction cavity, an internal thread block is arranged on the left side of the feeding port, the internal thread block is arranged on the upper end surface of the shell in a sliding manner, and a lifting rod is connected with the internal thread block in a threaded manner; according to the invention, the medicine residues are crushed by the crushing knife, then the medicine residues are compacted by the compression block, so that the medicine liquid in the residual medicine residues is extruded, the medicine residues are conveniently recovered, the scraping blade closely attached to the inner wall of the extraction cavity is driven by the spiral lifting rod to spirally descend, the medicine residues remained on the extraction cavity are scraped, the gear is driven by the filter plate to rotate, and the separation plate is driven by the gear to move, so that the residual medicine liquid and the medicine residues are respectively recovered. Therefore, in the above technical solution, the extraction operation is completed by controlling each device in the ultrasonic extraction apparatus, but it cannot be determined whether the extraction process is completed, so that the extraction efficiency is low, and various actuators are provided to perform the operations in the extraction process, which need to perform the corresponding operations under the control of the controller, but the data transmission and control process of the controller have hysteresis, especially when the transmission distance between the controller and the actuator is long or the transmission speed is slow, the operation control and the extraction process cannot be well linked, so that the extraction precision and quality can be affected.
Disclosure of Invention
Therefore, the invention provides an intelligent ultrasonic extraction device and a processing system based on the Internet of things, which are used for solving the problem of low extraction precision caused by overlong data judgment and control signal transmission time of a controller in the prior art.
In order to achieve the above object, the present invention provides an intelligent ultrasonic extraction device based on the internet of things, comprising:
the extraction unit is used for carrying out liquid extraction on the raw materials soaked in the extraction liquid through ultrasonic oscillation;
the liquid level monitoring unit is connected with the extraction unit and is used for detecting a first extraction parameter in the extraction unit;
the image monitoring unit is arranged in the extraction unit and used for detecting a second extraction parameter in the extraction unit;
the node control unit is connected with the extraction unit, each liquid level monitoring unit and the image monitoring unit, and is used for determining a first extraction output parameter according to the acquired first extraction parameter and the liquid level of the extraction liquid, determining a second extraction output parameter according to the acquired second extraction parameter, and adjusting the conversion coefficient of the first extraction parameter and the first extraction output parameter according to the comparison result of the change degree of the first extraction parameter in a set period and a preset standard under a first adjustment condition;
The remote control unit is remotely connected with the node control unit and is used for determining whether the extraction process is finished according to the first extraction output parameter and the second extraction output parameter transmitted by the node control unit;
the first extraction parameter is the highest bubble height of the extraction liquid in the extraction unit, the second extraction parameter is the brightness of the extraction liquid in the extraction unit, the first extraction output parameter is the current estimated bubble height of the extraction liquid, the second extraction output parameter is the current estimated brightness of the extraction liquid, the first extraction output parameter is determined by the first extraction parameter and a conversion coefficient corresponding to the first extraction parameter, and the second extraction output parameter is determined by the second extraction parameter and a conversion coefficient corresponding to the second extraction parameter;
the first adjustment condition is that the bubble diameter accords with a preset interval according to the bubble diameter, and the bubble diameter is determined by the first extraction parameter.
Further, the extraction unit includes:
an extraction tank which is provided in a cylindrical shape and has a closed bottom and is used as a container for extracting raw materials;
the ultrasonic transduction assembly is arranged at the lower part of the extraction tank and connected with the extraction tank, and is used for extracting raw materials through cavitation;
Wen Kongchi, it is set up outside the said extraction cell, and the temperature control pond is filled with the preset filling medium used for insulating against heat as preserving heat, the said temperature control pond is connected with the heating device outside, in order to regulate the temperature of the preset filling medium;
wherein the preset filling medium is set as follows: oil with absolute viscosity greater than 1000 centipoise is used as base liquid, paraffin is used as a uniformly dispersed phase in the base liquid, and the volume ratio of the paraffin to the oil is 1:2.
Further, the liquid level monitoring unit is provided inside the extraction tank, and includes:
the liquid level meter is arranged on the inner side wall of the extraction tank and used for detecting the liquid level of the extraction liquid;
the laser generating ends are arranged at the axial position of the extraction tank in a preset arrangement mode and are not contacted with the extraction tank, so that laser beams are emitted to the inner side wall of the extraction tank at a set height;
and the signal receiving ends are arranged on the inner side wall of the extraction tank and are opposite to the laser generating ends in position and used for determining the height of bubbles in the extraction tank according to the received laser beam information.
Further, the node control unit calculates a maximum bubble diameter parameter D according to the difference between the height Ha of the bubbles detected by the liquid level monitoring unit and the height Hb of the liquid extract to determine a value of the bubble height transmitted to the remote control unit according to the extraction trend, sets the maximum bubble diameter parameter D=2× (Ha-Hb), is provided with a first preset bubble diameter D1 and a second preset bubble diameter D2, wherein 0 < D1 < D2,
If D < D1, the node control unit determines that the bubble diameter is lower than a preset interval and determines that the rising trend of the extraction bubbles is stable, the height of the output bubbles to the remote control unit is recorded as Hc, and hc=ha is set;
if D1 is less than or equal to D < D2, the node control unit judges that the bubble diameter accords with a preset interval and recalculates the maximum bubble diameter parameter after a preset interval period Ta, and outputs the bubble height Hc=Haxα1 to the remote control unit;
if D2 is less than or equal to D, the bubble diameter of the node control unit is higher than a preset interval, the rising trend of the extraction bubbles is judged to be accelerated, and the bubble height Hc=Ha×α2 is output to the remote control unit;
wherein, alpha 1 is a first trend adjustment coefficient, alpha 2 is a second trend adjustment coefficient, and 1 < alpha 2.
Further, the node control unit calculates again the ratio K of the maximum bubble diameter parameter D' to the maximum bubble diameter parameter D calculated in the previous time according to the preset interval period Ta under the first adjustment condition to determine the bubble height change state of the preset interval so as to adjust the trend adjustment coefficient,
if K is less than or equal to 1, the node control unit judges that the height change state of the air bubble in the preset section is in a first trend, and adjusts the trend adjustment coefficient in a first adjustment mode;
If K is more than 1 and less than or equal to ka, the node control unit judges that the air bubble height change state of the preset section is in a second trend, and the trend adjustment coefficient is not required to be adjusted;
if ka is less than K, the node control unit judges that the height change state of the air bubble in the preset section is in a third trend, and adjusts the trend adjustment coefficient in a second adjustment mode;
wherein, the liquid crystal display device comprises a liquid crystal display device,
ka is a preset trend comparison parameter, the first adjustment condition is D1 is less than or equal to D < D2, and the node control unit is completed by recalculating the maximum bubble diameter parameter after a preset interval period Ta;
the trend adjustment coefficients include the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2, the first adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be smaller, and the second adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be larger.
Further, the node control unit is provided with an image acquisition rule to determine an image acquisition position of the image monitoring unit, wherein the image acquisition rule is to acquire a first image of an extract liquid with a height Hd1 from the bottom of the extraction Chi Zhongju extraction tank and a second image of an extract liquid with a height Hd2 from the bottom of the extraction Chi Zhongju extraction tank, hd1=Hbxg 1 and Hd2=Hbx (1-g 1), wherein g1 is a height setting coefficient, and 0.2 < g < 0.4.
Further, the node control unit determines the extraction uniformity degree of the raw material according to the difference value delta L of the brightness L1 of the first image and the brightness L2 of the second image acquired by the image monitoring unit under the second adjustment condition, and is set with standard brightness deviation delta L0, delta L0 is more than 0,
if DeltaL is less than or equal to DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials meets the standard;
if DeltaL is more than DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials does not accord with the standard;
the second adjusting condition is that the node control unit completes the judgment of the trend adjusting coefficient, and the brightness is related to the density of bubbles in the extracting solution.
Further, the node control unit determines the brightness value of the extraction liquid transmitted to the remote control unit according to the extraction uniformity degree determination result of the raw materials under the brightness determination completion condition,
if the result is the first determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a first output mode, and sets l3= (l1+l2) ×β1;
if the result is the second determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a second output mode, and sets l3= (l1+l2) ×β2;
The first judging result is that the node control unit judges that the extraction uniformity degree of the raw materials meets the standard, and the second judging result is that the node control unit judges that the extraction uniformity degree of the raw materials does not meet the standard;
wherein, beta 1 is a first output adjustment coefficient, beta 2 is a second output adjustment coefficient, and beta 1 is more than 0 and less than 0.5 and beta 2 is more than 1.
Further, the node control unit determines the end duration of extraction according to the extraction uniformity degree determination result of the raw materials under the extraction completion condition,
if the first determination result is the first determination result, the node control unit determines that the ending duration h does not need to be adjusted, and sets the ending duration h=h0;
if the first judgment result is obtained, the node control unit adopts an end duration adjustment coefficient gamma to adjust the end duration h to h=h0×gamma, wherein gamma is more than 1;
wherein h0 is a preset end duration, and the extraction completion condition is that the remote control unit determines that the extraction process is ended according to the brightness L3 and the bubble height Hc and transmits an extraction end signal to the node control unit.
Further, the remote control unit determines whether the extraction process is completed according to the brightness L3 and the bubble height Hc,
If L3 is smaller than LF or Hc is larger than HF, the remote control unit judges that extraction is finished;
wherein LF is a preset brightness completion standard, and HF is a preset bubble height completion standard.
Further, the detection period of the liquid level monitoring unit and the image monitoring unit is set to be longer than 2 times of the system data transmission time length, and the preset interval period Ta is shorter than 1/2 of the system data transmission time length;
the system data transmission time length is the time length from the node control unit to the remote control unit to the time of receiving the control data or the control signal of the remote control unit.
Compared with the prior art, the intelligent ultrasonic extraction device based on the Internet of things has the advantages that the extraction unit, the liquid level monitoring unit, the image monitoring unit node control unit and the remote control unit are arranged, the node unit is used for converting the detected first extraction parameter and the second extraction parameter to generate the output parameter which accords with the extraction trend, the output parameter is transmitted, the delay process in the data remote transmission process is overcome through the trend adjustment of the output parameter, the pre-judging parameter which accords with the extraction trend is output to the remote control unit, the hysteresis of control signals caused by data transmission hysteresis is avoided, the index for judging the extraction process is output to the remote control unit in a mode of pre-adjusting the output parameter in advance, the consistency of the extraction control judgment and the actual extraction progress in the invention is ensured, and the extraction precision is improved.
Furthermore, the extraction unit is provided with the Wen Kongchi and is filled with the preset filling medium as the heat preservation body, heat generated in the extraction process is absorbed, the paraffin material can be used as a good energy storage material, the temperature change of the extraction liquid can be kept in a small range, a good temperature control environment is provided for the extraction process, and the temperature of the extraction liquid can be adjusted due to the heating device, so that wider extraction temperature requirements are met.
Furthermore, the invention measures the heights of the bubbles by arranging the laser generating end and the signal receiving end, the bubbles in the extraction process can be used as trend indexes of the extraction process, the laser encounters the bubbles in the linear propagation process to generate reflection to influence the linear propagation path and signal quantity, and the invention can accurately measure whether the bubble reflection exists at each height by emitting the laser and detecting the signal of the receiving end of the laser to be used as the detection indexes of the heights of the bubbles.
Further, the image acquisition rule is set to determine the image acquisition position of the image monitoring unit, and the image acquisition rule is to acquire a first image of the extracting solution with the height Hd1 at the bottom of the extracting tank Chi Zhongju and a second image of the extracting solution with the height Hd2 from the bottom of the extracting tank, so that the situation that the extraction progress is decreased along the height direction due to different bubble generation amounts at different heights in the extracting solution possibly exists because the ultrasonic transduction component in the extracting tank is positioned at the bottom of the extracting tank, and at the moment, the situation that the image caused by adopting a single image cannot represent the extraction trend of each part in the extracting tank is avoided by acquiring the first image and the second image, and a more comprehensive extracting image in the extracting solution can be obtained.
Further, the detection period of the liquid level monitoring unit and the image monitoring unit is set to be longer than 2 times of system data transmission time, invalid data collection is avoided by setting the detection period to be longer than the system data transmission time, the data transmission quantity is further reduced by setting the detection period to be 2 times, the running stability of the device is improved, the system data transmission time with the preset interval period Ta smaller than 1/2 is set, and the data calculation and the data transmission calculation are ensured to have enough processing time by setting the sampling period shorter than the system data transmission time, so that the effectiveness of trend adjustment coefficients of extraction parameters is further ensured.
Drawings
FIG. 1 is a connection block diagram of an intelligent ultrasonic extraction device based on the Internet of things;
FIG. 2 is a schematic diagram of the structure of an extraction unit;
FIG. 3 is a schematic diagram of a fluid level monitoring unit;
in the figure: the device comprises an extraction tank 11, an ultrasonic transduction assembly 12, a temperature control tank 13, a preset filling medium 14, a liquid level meter 21, a laser generating end 22 and a signal receiving end 23.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 3, the present invention provides an intelligent ultrasonic extraction device based on the internet of things, comprising:
the extraction unit is used for carrying out liquid extraction on the raw materials soaked in the extraction liquid through ultrasonic oscillation;
the liquid level monitoring unit is connected with the extraction unit and is used for detecting a first extraction parameter in the extraction unit;
the image monitoring unit is arranged in the extraction unit and used for detecting a second extraction parameter in the extraction unit;
the node control unit is connected with the extraction unit, each liquid level monitoring unit and the image monitoring unit, and is used for determining a first extraction output parameter according to the acquired first extraction parameter and the liquid level of the extraction liquid, determining a second extraction output parameter according to the acquired second extraction parameter, and adjusting the conversion coefficient of the first extraction parameter and the first extraction output parameter according to the comparison result of the change degree of the first extraction parameter in a set period and a preset standard under a first adjustment condition;
The remote control unit is remotely connected with the node control unit and is used for determining whether the extraction process is finished according to the first extraction output parameter and the second extraction output parameter transmitted by the node control unit;
the first extraction parameter is the highest bubble height of the extraction liquid in the extraction unit, the second extraction parameter is the brightness of the extraction liquid in the extraction unit, the first extraction output parameter is the current estimated bubble height of the extraction liquid, the second extraction output parameter is the current estimated brightness of the extraction liquid, the first extraction output parameter is determined by the first extraction parameter and a conversion coefficient corresponding to the first extraction parameter, and the second extraction output parameter is determined by the second extraction parameter and a conversion coefficient corresponding to the second extraction parameter;
the first adjustment condition is that the bubble diameter accords with a preset interval according to the bubble diameter, and the bubble diameter is determined by the first extraction parameter.
The intelligent ultrasonic extraction device based on the Internet of things is provided with the extraction unit, the liquid level monitoring unit, the image monitoring unit node control unit and the remote control unit, the node unit is used for converting the detected first extraction parameter and the second extraction parameter to generate the output parameter which accords with the extraction trend, the delay process in the data remote transmission process is overcome through the trend adjustment of the output parameter, the prejudgment parameter which accords with the extraction trend is output to the remote control unit, the delay of a control signal caused by data transmission delay is avoided, and the index for judging the extraction process is output to the remote control unit in a mode of presetting the output parameter in advance, so that the extraction control judgment is consistent with the actual extraction progress in the invention, and the extraction precision is improved.
Specifically, the extraction unit includes:
an extraction tank 11 which is provided in a cylindrical shape and has a closed bottom, and serves as a container for raw material extraction;
an ultrasonic transducer assembly 12 disposed at the lower part of the extraction tank 11 and connected to the extraction tank for extracting the raw materials by cavitation;
the temperature control tank 13 is arranged outside the extraction tank 11, a preset filling medium 14 used for heat preservation and insulation is filled in the temperature control tank 13, and a heating device is connected to the outside of the temperature control tank 13 and used for adjusting the temperature of the preset filling medium 14;
wherein the preset fill media 14 is configured to: oil with absolute viscosity greater than 1000 centipoise is used as base liquid, paraffin is used as a uniformly dispersed phase in the base liquid, and the volume ratio of the paraffin to the oil is 1:2.
In practice, the density of the base liquid is set to be the same as the density of paraffin particles or the particle density of a mixture of paraffin and other substances to ensure that a uniform dispersed phase is formed so that the thermal conductivity of the formed preset filling medium at each location is uniform. Because the ultrasonic wave is absorbed in the liquid with larger viscosity, the transmission performance is poor, and the paraffin can store heat energy as the phase-change medium and the temperature change is smaller, if the actual extraction demand temperature is far higher than the phase-change temperature of the paraffin, other phase-change materials with the corresponding phase-change temperature can be adopted as the disperse phase, so long as the technical scheme of the invention can be realized, and the description is omitted.
According to the invention, the Wen Kongchi is arranged and filled with the preset filling medium as the heat preservation body, so that heat generated in the extraction process is absorbed, the paraffin material can be used as a good energy storage material, the temperature change of the extraction liquid can be kept in a small range, a good temperature control environment is provided for the extraction process, and the heating device is arranged, so that the temperature of the extraction liquid can be adjusted, the wider extraction temperature requirement is met, on the basis, the viscosity value setting of the base liquid can ensure that ultrasonic waves are gradually reduced in the base liquid due to propagation loss, the base liquid can provide shock absorption for an extraction tank to a certain extent, and the equipment vibration caused by ultrasonic mechanical vibration in the extraction process is reduced.
Specifically, the liquid level monitoring unit is provided inside the extraction tank, and includes:
a liquid level gauge 21 provided on an inner side wall of the extraction tank 11 for detecting a liquid level of the extraction liquid;
the laser generating ends 22 are arranged at the axial position of the extraction tank 11 in a preset arrangement mode and are not contacted with the extraction tank 11, so as to emit laser beams to the inner side wall of the extraction tank 11 at a set height, and as an implementation mode, the laser beams can be arranged to be distributed in the transverse direction of the same height and/or along the height direction of the extraction tank 11, and the conducting path of the laser is changed due to the fact that the laser beams are reflected at a certain angle after encountering bubbles;
The plurality of signal receiving ends 23 are disposed on the inner sidewall of the extraction tank 11 and are opposite to the laser generating end 22, so as to determine the height of the air bubbles in the extraction tank according to the received laser beam information, and in practice, the height of the air bubbles in the extraction tank can be determined according to the intensity of the emitted laser or the receiving height of the laser, so long as the height of the air bubbles in the extraction tank can be obtained.
According to the invention, the laser generating end and the signal receiving end are arranged to measure the heights of the bubbles, the bubbles in the extraction process can be used as trend indexes of the extraction process, the laser encounters the bubbles in the linear propagation process to generate reflection to influence the linear propagation path and signal quantity, and the laser is emitted and the signals of the receiving end of the laser are detected, so that whether the bubble reflection exists at each height can be accurately measured and used as detection indexes of the heights of the bubbles.
Specifically, the node control unit calculates a maximum bubble diameter parameter D according to a difference between the detected bubble height Ha of the liquid level monitoring unit and the liquid level Hb of the extraction liquid to determine a bubble height value transmitted to the remote control unit according to an extraction trend, sets the maximum bubble diameter parameter D=2× (Ha-Hb), is provided with a first preset bubble diameter D1 and a second preset bubble diameter D2, wherein 0 < D1 < D2,
If D < D1, the node control unit determines that the bubble diameter is lower than a preset interval and determines that the rising trend of the extraction bubbles is stable, the height of the output bubbles to the remote control unit is recorded as Hc, and hc=ha is set;
if D1 is less than or equal to D and less than D2, the node control unit judges that the bubble diameter accords with a preset interval and recalculates the maximum bubble diameter parameter after a preset interval period Ta, and outputs the bubble height Hc=Haxα1 to the remote control unit;
if D2 is less than or equal to D, the bubble diameter of the node control unit is higher than a preset interval, the rising trend of the extraction bubbles is judged to be accelerated, and the bubble height Hc=Ha×α2 is output to the remote control unit;
wherein, alpha 1 is a first trend adjustment coefficient, alpha 2 is a second trend adjustment coefficient, and 1 < alpha 2.
The maximum bubble diameter parameter D is calculated through the detected difference between the bubble height Ha and the liquid level Hb of the extraction liquid to determine the bubble height value transmitted to the remote control unit, the bubble stacking height in the liquid level can represent the extraction process in the extraction process, the higher the height is, the higher the extraction progress completion degree is, and as the bubble height is increased, the increment of the later-increased bubble is increased based on the bubble formed before, so that the maximum bubble diameter parameter D can represent the extraction process, and the extraction pre-judgment can be more accurate as the adjustment index of the first extraction output parameter.
Specifically, the node control unit calculates again the ratio K of the maximum bubble diameter parameter D' to the maximum bubble diameter parameter D calculated in the previous time under the first adjustment condition according to the preset interval period Ta to determine the bubble height change state of the preset interval so as to adjust the trend adjustment coefficient,
if K is less than or equal to 1, the node control unit judges that the height change state of the air bubble in the preset section is in a first trend, and adjusts the trend adjustment coefficient in a first adjustment mode;
if K is more than 1 and less than or equal to ka, the node control unit judges that the air bubble height change state of the preset section is in a second trend, and the trend adjustment coefficient is not required to be adjusted;
if ka is less than K, the node control unit judges that the height change state of the air bubble in the preset section is in a third trend, and adjusts the trend adjustment coefficient in a second adjustment mode;
wherein, the liquid crystal display device comprises a liquid crystal display device,
ka is a preset trend comparison parameter, ka is more than 1, the first adjustment condition is D1 is less than or equal to D < D2, and the node control unit is completed by recalculating the maximum bubble diameter parameter after a preset interval period Ta;
the trend adjustment coefficients include the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2, the first adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be smaller, the second adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be larger, in the implementation, the single adjustment amounts of the first adjustment mode and the second adjustment mode can be set according to specific extraction liquid, generally, the single adjustment value Δα is set as implementation, or the corresponding adjustment coefficient n1 of the first adjustment mode and the corresponding adjustment coefficient n2 of the second adjustment mode can be set, at this time, n1 is smaller than 1, n2 is larger than 1.
The node control unit calculates the ratio K of the maximum bubble diameter parameter D' to the maximum bubble diameter parameter D calculated in the previous time according to the preset interval period Ta under the first adjustment condition again to determine the bubble height change state of the preset interval so as to adjust the trend adjustment coefficient, and the preset interval period Ta is set to judge the extraction state when the bubble diameter accords with the preset interval, so that the estimated bubble growth trend accords with the actual extraction process.
Specifically, the node control unit is provided with an image acquisition rule to determine an image acquisition position of the image monitoring unit, wherein the image acquisition rule is to acquire a first image of an extract liquid with a height Hd1 from the bottom of the extraction Chi Zhongju extraction tank and a second image of an extract liquid with a height Hd2 from the bottom of the extraction tank, hd1=Hbxg 1 and Hd2=Hbx (1-g 1), wherein g1 is a height setting coefficient, and 0.2 < g < 0.4.
The image acquisition rule is set to determine the image acquisition position of the image monitoring unit, and the image acquisition rule is to acquire a first image of an extraction liquid with the height Hd1 at the bottom of an extraction Chi Zhongju extraction tank and a second image of the extraction liquid with the height Hd2 from the bottom of the extraction tank, and because an ultrasonic transduction component in the extraction tank is positioned at the bottom of the extraction tank, different bubble generation amounts at different heights in the extraction liquid possibly exist, so that the extraction progress is reduced along the height direction, at the moment, by acquiring the first image and the second image, the situation that the image caused by adopting a single image cannot represent the extraction trend of each part in the extraction tank is avoided, and a more comprehensive extraction image in the extraction liquid can be obtained.
Specifically, the node control unit determines the extraction uniformity degree of the raw material according to the difference value DeltaL of the brightness L1 of the first image and the brightness L2 of the second image acquired by the image monitoring unit under the second adjustment condition, and sets the standard brightness deviation DeltaL 0, deltaL 0 > 0,
if DeltaL is less than or equal to DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials meets the standard;
if DeltaL is larger than DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials does not accord with the standard.
The second adjustment condition is that the node control unit completes the judgment of the trend adjustment coefficient, the brightness is related to the density of bubbles in the extract, and in implementation, the value of Δl0 is correspondingly set according to the actual historical extraction result.
According to the invention, the extraction uniformity degree of the raw materials is determined according to the difference value delta L of the brightness L1 of the first image and the brightness L2 of the second image acquired by the image monitoring unit, the extraction uniformity degree of the raw materials is effectively represented by the brightness difference value of the two images, and the larger the brightness difference value of the images is, the larger the difference of the distribution conditions of bubbles in the extraction liquid is, and the lower the extraction uniformity degree is.
Specifically, the node control unit determines the brightness value of the extraction liquid transmitted to the remote control unit according to the extraction uniformity degree determination result of the raw materials under the brightness determination completion condition,
if the result is the first determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a first output mode, and sets l3= (l1+l2) ×β1;
if the result is the second determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a second output mode, and sets l3= (l1+l2) ×β2;
the first judging result is that the node control unit judges that the extraction uniformity degree of the raw materials meets the standard, and the second judging result is that the node control unit judges that the extraction uniformity degree of the raw materials does not meet the standard;
wherein, beta 1 is a first output adjustment coefficient, beta 2 is a second output adjustment coefficient, and beta 1 is more than 0 and less than 0.5 and beta 2 is more than 1. In this embodiment, brightness is linearly and positively correlated with the brightness value of an image, and β1=0.45 and β2=0.65 are examples.
According to the invention, the brightness value of the extraction liquid transmitted to the remote control unit is determined according to the extraction uniformity degree determination result of the raw materials, and the brightness of the extraction liquid is used as one of indexes of whether the extraction process is finished or not, so that if the extraction concentration with high uniformity degree meets the standard in two extraction processes of the same brightness value transmitted to the remote control module, the extraction concentration does not meet the standard due to the influence of the extraction concentration with the sampling value of the brightness of the extraction liquid with low uniformity degree when the extraction concentration with high uniformity degree is finished, and therefore, the brightness value of the extraction liquid transmitted to the remote control unit is adjusted according to the extraction uniformity degree determination result of the extraction, so that the extraction liquid obtained by the extraction unit contains the extraction concentration meeting the standard when the remote control unit determines that the extraction is finished under various conditions.
Specifically, the node control unit determines the end duration of extraction according to the extraction uniformity degree determination result of the raw materials under the extraction completion condition,
if the first determination result is the first determination result, the node control unit determines that the ending duration h does not need to be adjusted, and sets the ending duration h=h0;
if the first judgment result is obtained, the node control unit adopts an end duration adjustment coefficient gamma to adjust the end duration h to h=h0×gamma, wherein gamma is more than 1;
wherein h0 is a preset end duration, and generally, the range interval of h0 is set to be within a duration interval of 5 seconds to 30 seconds, and the extraction completion condition is that the remote control unit determines that the extraction process is ended according to the brightness L3 and the bubble height Hc and transmits an extraction end signal to the node control unit.
The invention determines the end duration of extraction through judging the extraction uniformity degree of the raw materials, and further effectively adjusts the extraction end time so that the extraction liquid obtained by the extraction unit contains the extraction concentration meeting the standard when the extraction is ended.
In particular, the remote control unit determines whether the extraction process is completed according to the brightness L3 and the bubble height Hc,
If L3 is smaller than LF or Hc is larger than HF, the remote control unit judges that extraction is finished;
wherein LF is a preset brightness completion standard, and HF is a preset bubble height completion standard.
As an implementation manner, the remote control unit determines the extraction process according to the parameter data transmitted by the node control unit, can remotely control the extraction process, and autonomously determines whether the extraction is completed or not by setting a preset brightness completion standard and a preset bubble height completion standard. As other possible embodiments, the remote determination further includes a manual determination, where the remote control receives the parameter data transmitted by the node control unit, and selects a timing to end the extraction process, so as to achieve remote control of extraction.
Further, the detection period of the liquid level monitoring unit and the image monitoring unit is set to be longer than 2 times of the system data transmission time length, and the preset interval period Ta is shorter than 1/2 of the system data transmission time length;
the system data transmission time length is the time length from the node control unit to the remote control unit to the time of receiving the control data or the control signal of the remote control unit.
In implementation, the detection period of the liquid level monitoring unit and the image monitoring unit is set to be longer than 2 times of system data transmission time, invalid data collection is avoided by setting the detection period to be longer than the system data transmission time, the data transmission quantity is further reduced by setting the detection period to be 2 times, the running stability of the device is improved, the system data transmission time with the preset interval period Ta smaller than 1/2 is set, and the data calculation and the data transmission calculation are ensured to have enough processing time by setting the sampling period shorter than the system data transmission time, so that the effectiveness of trend adjustment coefficients of extraction parameters is further ensured.
In addition, in the scheme, the first extraction output parameters and the second extraction output parameters transmitted by the node control unit and the remote control unit can be numerical data, compared with image data, the transmission speed is obviously improved, the probability of data loss or error transmission in transmission is further reduced, and the accuracy of the remote control extraction process is ensured.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Intelligent ultrasonic extraction device based on thing networking, its characterized in that includes:
the extraction unit is used for carrying out liquid extraction on the raw materials soaked in the extraction liquid through ultrasonic oscillation;
the liquid level monitoring unit is connected with the extraction unit and is used for detecting a first extraction parameter in the extraction unit;
the image monitoring unit is arranged in the extraction unit and used for detecting a second extraction parameter in the extraction unit;
the node control unit is connected with the extraction unit, each liquid level monitoring unit and the image monitoring unit, and is used for determining a first extraction output parameter according to the acquired first extraction parameter and the liquid level of the extraction liquid, determining a second extraction output parameter according to the acquired second extraction parameter, and adjusting the conversion coefficient of the first extraction parameter and the first extraction output parameter according to the comparison result of the change degree of the first extraction parameter in a set period and a preset standard under a first adjustment condition;
The remote control unit is remotely connected with the node control unit and is used for determining whether the extraction process is finished according to the first extraction output parameter and the second extraction output parameter transmitted by the node control unit;
the first extraction parameter is the highest bubble height of the extraction liquid in the extraction unit, the second extraction parameter is the brightness of the extraction liquid in the extraction unit, the first extraction output parameter is the current estimated bubble height of the extraction liquid, the second extraction output parameter is the current estimated brightness of the extraction liquid, the first extraction output parameter is determined by the first extraction parameter and a conversion coefficient corresponding to the first extraction parameter, and the second extraction output parameter is determined by the second extraction parameter and a conversion coefficient corresponding to the second extraction parameter;
the first adjustment condition is that the bubble diameter accords with a preset interval according to the bubble diameter, and the bubble diameter is determined by the first extraction parameter.
2. The intelligent ultrasonic extraction device based on the internet of things according to claim 1, wherein the extraction unit comprises:
an extraction tank which is provided in a cylindrical shape and has a closed bottom and is used as a container for extracting raw materials;
The ultrasonic transduction assembly is arranged at the lower part of the extraction tank and connected with the extraction tank, and is used for extracting raw materials through cavitation;
wen Kongchi, it is set up outside the said extraction cell, and the temperature control pond is filled with the preset filling medium used for insulating against heat as preserving heat, the said temperature control pond is connected with the heating device outside, in order to regulate the temperature of the preset filling medium;
wherein the preset filling medium is set as follows: oil with absolute viscosity greater than 1000 centipoise is used as base liquid, paraffin is used as a uniformly dispersed phase in the base liquid, and the volume ratio of the paraffin to the oil is 1:2.
3. The intelligent ultrasonic extraction device based on the internet of things according to claim 2, wherein the liquid level monitoring unit is disposed inside the extraction tank, and comprises:
the liquid level meter is arranged on the inner side wall of the extraction tank and used for detecting the liquid level of the extraction liquid;
the laser generating ends are arranged at the axial position of the extraction tank in a preset arrangement mode and are not contacted with the extraction tank, so that laser beams are emitted to the inner side wall of the extraction tank at a set height;
and the signal receiving ends are arranged on the inner side wall of the extraction tank and are opposite to the laser generating ends in position and used for determining the height of bubbles in the extraction tank according to the received laser beam information.
4. The intelligent ultrasonic extraction device based on the internet of things according to claim 3, wherein the node control unit calculates a maximum bubble diameter parameter D according to a height difference between a bubble height Ha detected by the liquid level monitoring unit and a liquid level Hb of an extraction liquid to determine a bubble height value transmitted to the remote control unit, sets the maximum bubble diameter parameter d=2× (Ha-Hb), the node control unit is provided with a first preset bubble diameter D1 and a second preset bubble diameter D2, wherein 0 < D1 < D2,
if D < D1, the node control unit determines that the bubble diameter is lower than a preset interval and determines that the rising trend of the extraction bubbles is stable, the height of the output bubbles to the remote control unit is recorded as Hc, and hc=ha is set;
if D1 is less than or equal to D < D2, the node control unit judges that the bubble diameter accords with a preset interval and recalculates the maximum bubble diameter parameter after a preset interval period Ta, and outputs the bubble height Hc=Haxα1 to the remote control unit;
if D2 is less than or equal to D, the bubble diameter of the node control unit is higher than a preset interval, the rising trend of the extraction bubbles is judged to be accelerated, and the bubble height Hc=Ha×α2 is output to the remote control unit;
Wherein, alpha 1 is a first trend adjustment coefficient, alpha 2 is a second trend adjustment coefficient, and 1 < alpha 2.
5. The intelligent ultrasonic extraction device based on the Internet of things according to claim 4, wherein the node control unit calculates again a ratio K of a maximum bubble diameter parameter D' to a maximum bubble diameter parameter D calculated in the previous time under a first adjustment condition according to a preset interval period Ta to determine a bubble height change state of a preset interval so as to adjust a trend adjustment coefficient,
if K is less than or equal to 1, the node control unit judges that the height change state of the air bubble in the preset section is in a first trend, and adjusts the trend adjustment coefficient in a first adjustment mode;
if K is more than 1 and less than or equal to ka, the node control unit judges that the air bubble height change state of the preset section is in a second trend, and the trend adjustment coefficient is not required to be adjusted;
if ka is less than K, the node control unit judges that the height change state of the air bubble in the preset section is in a third trend, and adjusts the trend adjustment coefficient in a second adjustment mode;
wherein, the liquid crystal display device comprises a liquid crystal display device,
ka is a preset trend comparison parameter, the first adjustment condition is D1 is less than or equal to D < D2, and the node control unit is completed by recalculating the maximum bubble diameter parameter after a preset interval period Ta;
The trend adjustment coefficients include the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2, the first adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be smaller, and the second adjustment mode is to adjust the values of the first trend adjustment coefficient α1 and the second trend adjustment coefficient α2 to be larger.
6. The intelligent ultrasonic extraction apparatus based on the internet of things according to claim 5, wherein the node control unit is provided with an image acquisition rule to determine an image acquisition position of the image monitoring unit, the image acquisition rule is to acquire a first image of an extract liquid with a height Hd1 at a bottom of the extraction Chi Zhongju extraction tank and a second image of the extract liquid with a height Hd2 from the bottom of the extraction tank, and hd1=hb×g1 and hd2=hb× (1-g 1) are set, wherein g1 is a height setting coefficient, and 0.2 < g1 < 0.4.
7. The intelligent ultrasonic extraction device based on the internet of things according to claim 6, wherein the node control unit determines the extraction uniformity degree of the raw material according to a difference value DeltaL of the brightness L1 of the first image and the brightness L2 of the second image acquired by the image monitoring unit under a second adjustment condition, sets the standard brightness deviation DeltaL 0, deltaL 0 > 0,
If DeltaL is less than or equal to DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials meets the standard;
if DeltaL is more than DeltaL 0, the node control unit judges that the extraction uniformity degree of the raw materials does not accord with the standard;
the second adjusting condition is that the node control unit completes the judgment of the trend adjusting coefficient, and the brightness is related to the density of bubbles in the extracting solution.
8. The intelligent ultrasonic extraction device based on the Internet of things according to claim 7, wherein the node control unit determines the brightness value of the extraction liquid transmitted to the remote control unit according to the extraction uniformity degree determination result of the raw materials under the brightness determination completion condition,
if the result is the first determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a first output mode, and sets l3= (l1+l2) ×β1;
if the result is the second determination result, the node control unit adjusts the brightness L3 output to the remote control unit by adopting a second output mode, and sets l3= (l1+l2) ×β2;
the first judging result is that the node control unit judges that the extraction uniformity degree of the raw materials meets the standard, and the second judging result is that the node control unit judges that the extraction uniformity degree of the raw materials does not meet the standard;
Wherein, beta 1 is a first output adjustment coefficient, beta 2 is a second output adjustment coefficient, and beta 1 is more than 0 and less than 0.5 and beta 2 is more than 1.
9. The intelligent ultrasonic extraction device based on the Internet of things according to claim 8, wherein the node control unit determines the end duration of extraction according to the extraction uniformity degree determination result of the raw materials under the extraction completion condition,
if the first determination result is the first determination result, the node control unit determines that the ending duration h does not need to be adjusted, and sets the ending duration h=h0;
if the first judgment result is obtained, the node control unit adopts an end duration adjustment coefficient gamma to adjust the end duration h to h=h0×gamma, wherein gamma is more than 1;
wherein h0 is a preset end duration, and the extraction completion condition is that the remote control unit determines that the extraction process is ended according to the brightness L3 and the bubble height Hc and transmits an extraction end signal to the node control unit.
10. The intelligent ultrasonic extraction device based on the internet of things according to claim 9, wherein the detection period of the liquid level monitoring unit and the image monitoring unit is set to be more than 2 times of the system data transmission duration, and the preset interval period Ta is less than 1/2 of the system data transmission duration;
The system data transmission time length is the time length from the node control unit to the remote control unit to the time of receiving the control data or the control signal of the remote control unit.
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