CN108762322B - Domestic self-made drink concentration control device - Google Patents
Domestic self-made drink concentration control device Download PDFInfo
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- CN108762322B CN108762322B CN201810568321.XA CN201810568321A CN108762322B CN 108762322 B CN108762322 B CN 108762322B CN 201810568321 A CN201810568321 A CN 201810568321A CN 108762322 B CN108762322 B CN 108762322B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
- G05D11/138—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the concentration of the mixture, e.g. measuring pH value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
Abstract
The invention discloses a household self-made drink concentration control device, which relates to kitchen utensils and comprises an annular shell, a main controller, a first light emitting module, a second light receiving module and a water inlet control valve, wherein the annular shell is provided with a first light emitting module and a second light emitting module; a first water inlet channel is arranged along the radial middle part of the annular shell, a first inlet of the first water inlet channel is connected with a water inlet control valve, and a second outlet of the first water inlet channel comprises a right-angle trapezoidal outlet part; the first output end of the main controller is connected with the first light emitting module; the second light receiving module is connected with a second input end of the main controller; the fifth output end of the main controller is connected with the control end of the water inlet control valve; the invention avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Description
Technical Field
The invention relates to the field of water cups, in particular to a household self-made drink concentration control device.
Background
In daily life, people often drink sugar water, prepare normal saline or prepare saline with seawater concentration so as to make the sea fresh and spit sand.
In the prior art, sugar water and brine are usually blended by a weighing method, and actually, the amount of a solution in a common household is not large, on one hand, the weighing precision of the weighing method is required to be improved, the concentration of the prepared solution is not easy to be accurate, and on the other hand, if the precision of the weighing method is reduced by adding a solvent and a solute, the waste of water resources and the solute is easily caused.
In addition, the following problems are also present with the weighing method: 1) manually converting the solute volume to solve the concentration; 2) the solution concentration will not be available again due to evaporation or after a variable addition.
Disclosure of Invention
In view of some of the above-mentioned drawbacks of the prior art, the present invention provides a home-made beverage concentration control device, which is used for determining the refractive index of a solution and solving the concentration of the solution according to the refractive index to obtain a more accurate solution concentration, so as to prepare a home-made beverage with a proper concentration.
In order to achieve the above object, the present invention provides a home-made beverage concentration control device, which comprises an annular housing, a main controller, a first light emitting module, a second light receiving module and a water inlet control valve; a first water inlet channel is arranged along the radial middle part of the annular shell, a first inlet of the first water inlet channel is connected with a water inlet control valve, and a second outlet of the first water inlet channel comprises a right-angled trapezoid-shaped outlet part;
the first light emitting module is positioned in the annular shell and close to a first mounting part on the side of the shorter bottom edge in one end of a first inclined plane of the right trapezoid-shaped outlet part; the second light receiving module is positioned in the annular shell and close to a second right-angle surface of the right-angle trapezoidal outlet part;
the first light ray emitted by the first light emitting module is parallel to the normal line of the second right-angle surface, and the included angle between the first light ray emitted by the first light emitting module and the normal line of the first inclined surface is a first incident angle thetai(ii) a The distance from the intersection point of the first light ray and the first inclined plane to the second right-angle plane is a first distance L;
the first output end of the main controller is connected with the first light emitting module; the second light receiving module is connected with a second input end of the main controller; the fifth output end of the main controller is connected with the control end of the water inlet control valve; the main controller comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module, a solution concentration solving module and a water inlet control module; (ii) a
The first light emission control module is used for controlling the first light emission module to emit first light;
the refracted ray receiving module is used for responding to the first ray emitted by the first light emitting module, and acquiring the offset distance D of the first ray emitted by the first light emitting module on the second light receiving module after being refracted by the solution to be measured in the right-angle trapezoidal outlet part at the bottom of the concentration measuring device;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies：
Wherein, thetai≠0；
The solution to be measured concentration solving module is used for obtaining the concentration c of the solution to be measured according to the refractive index of the solution to be measured, the solute information of the solution to be measured and the solvent of the solution to be measured; the solute information includes a refractive index-concentration relationship curve that satisfies: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve;
the water inlet control module is used for controlling the water inlet according to the concentration c of the solution to be detected and the target concentration c of the solutiongoalSending a control command to the water inlet control valve according to the size relation; the control instructions include: responding to the fact that the concentration c of the solution to be detected is larger than the target concentration value c of the solution to be detectedgoalSending an opening control instruction to the water inlet control valve; responding to the concentration c of the solution to be detected being less than or equal to the target concentration value c of the solution to be detectedgoalAnd sending a closing control instruction to the water inlet control valve or outputting a first prompt to a user.
In this technical scheme, through the position design of first light emitting module, second light receiving module, first inclined plane, second right angle face to try to get the refracting index, and further try to get solution concentration through the refracting index, so that the user can obtain comparatively accurate solution concentration, so that prepare the domestic self-made beverage of suitable concentration. The technical scheme avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Through experiments on the relation between the concentration of the sucrose and the refractive index, the inventor finds that a single soluble substance which does not chemically react with water is mixed with water, and the refractive index is related to the proportion of the two, namely, the higher the solution mass ratio is, the higher the refractive index of the solution is, and the curve relation is met; in addition, the inventor also conducts experiments on the relation between the brine concentration and the refractive index, and the above rule is also met. Based on the above mechanism, in the present embodiment, the concentration of the solution can be known by measuring the concentration of the solution when the solute of the solution is known.
In a specific embodiment, a mounting part for mounting the device on the wall of a first container for holding the solution to be measured extends outwards from the middle part or the upper part of the annular shell; the mounting part is of an inverted L shape.
In this technical scheme, through setting up the mount portion, be convenient for fix concentration measurement device on the container.
In a specific embodiment, the upper part of the annular shell is further provided with a display module for displaying the concentration of the solution, and the input end of the display module is connected with the third output end of the main controller.
In a specific embodiment, the upper part of the annular shell is further provided with an input module for inputting solute categories, and a fourth input end of the main controller is connected with the input module.
In this example, the solute is a single edible product.
Optionally, the solute category is one of sucrose, salt, glucose and honey.
In one embodiment, the first inclined plane is made of a light-transmitting material, and the second right-angle plane is made of a light-transmitting material.
In one embodiment, the first inclined surface is planar; the second right-angle surface is a plane.
Through the planar design, the refractive index solving precision is improved, the equipment installation accuracy is reduced, and the assembly cost is reduced.
In a specific embodiment, the main controller further includes an intrinsic offset distance obtaining module, configured to collect, when the right trapezoid-shaped outlet is empty, an intrinsic offset distance D of the first light reflected by the second light receiving module0；
The refracted ray receiving module is also used for receiving the reflected rayThe intrinsic offset distance D0Correcting the offset distance D acquired when the solution is loaded in the right-angled trapezoid-shaped outlet; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
In the technical scheme, the intrinsic offset distance is solved, so that the influence of the refractive index of the material on the refraction of the light path is eliminated or reduced, and the measurement accuracy of the refractive index is improved.
Optionally, the second light receiving module is planar;
in a specific embodiment, the second light receiving module includes a photo-resistor array.
In the technical scheme, the emergent position of the first light ray is measured through the photoresistor array.
Optionally, the position of the second light receiving module receiving the light is obtained according to the array unit with the decreased resistance value of the photoresistor array.
In a specific embodiment, the main controller further includes: and the solute input acquisition module is used for acquiring the solute information input by the user.
In a specific embodiment, the main controller further includes a storage module, configured to store the at least one solute information for user selection, where the solute information includes a solute name, and a multiple coefficient of a refractive index-concentration relationship curve corresponding to the solute name.
In the technical scheme, the refractive index-concentration relation curves of various solutes are preset, so that the selection is effectively provided for a user, and the system compatibility is improved.
The invention has the beneficial effects that: according to the invention, the refractive index is obtained through the position design of the first light emitting module, the second light receiving module, the first inclined plane and the second right-angle plane, and the solution concentration is further obtained through the refractive index, so that a user can obtain more accurate solution concentration, and a household self-made drink with proper concentration can be prepared. The invention avoids the precision requirement of solution proportioning by a weighing method and improves the concentration precision of the prepared solution; meanwhile, the concentration does not need to be solved by manual conversion like a weighing method, and the concentration of the solution can be obtained again after evaporation or non-quantitative feeding.
Drawings
FIG. 1 is a schematic diagram of a home-made beverage concentration control device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for controlling the concentration of home-made beverage according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a refracted light path of a first light ray in an embodiment of the invention;
FIG. 4 is a block diagram of a circuit of a home-made beverage strength control apparatus according to an embodiment of the present invention;
FIG. 5 is a graph of sugar water concentration versus refractive index in accordance with one embodiment of the present invention;
FIG. 6 is a graph of saline concentration versus refractive index in accordance with one embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 6, in a first embodiment of the present invention, there is provided a home-made drink concentration control apparatus including an annular housing 101, a main controller 300, a first light emitting module 102, a second light receiving module 103, and a water inlet control valve 200; a first water inlet channel 104 is arranged along the radial middle part of the annular shell 101, a first inlet of the first water inlet channel 104 is connected with the water inlet control valve 200, and a second outlet of the first water inlet channel 104 comprises a right-angle trapezoidal outlet 105;
a first mounting portion 107 of the first optical transmission module 102 on the side of the shorter bottom side of one end of the first inclined surface 106 of the right trapezoid-shaped outlet 105 in the annular housing 101; a second mounting portion 109 of the second light receiving module 103 is located within the annular housing 101 adjacent to a second right-angled surface 108 of the right-angled trapezoidal outlet;
the first light and the second light emitted by the first light emitting module 102The normal lines of the right-angle surfaces 108 are parallel, and the included angle between the first light ray emitted by the first light emitting module 102 and the normal line of the first inclined surface 106 is a first incident angle thetai(ii) a The distance from the intersection point of the first light ray and the first inclined plane 106 to the second right-angle plane 108 is a first distance L;
a first output terminal of the main controller 300 is connected to the first optical transmit module 102; the second light receiving module 103 is connected to a second input end of the main controller 300; a fifth output terminal of the main controller 300 is connected to the control terminal of the water inlet control valve 200; the main controller 300 comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module, a solution concentration solving module and a water inlet control module; (ii) a
The first light emitting control module is configured to control the first light emitting module 102 to emit a first light;
the refracted light receiving module is configured to respond to the first light emitted by the first light emitting module 102, and acquire an offset distance D of the first light emitted by the first light emitting module 102 on the second light receiving module 103 after being refracted by the solution to be measured in the right-angled trapezoid-shaped outlet 105 at the bottom of the concentration measuring device;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies:
wherein, thetai≠0；
The solution to be measured concentration solving module is used for obtaining the concentration c of the solution to be measured according to the refractive index of the solution to be measured, the solute information of the solution to be measured and the solvent of the solution to be measured; the solute information includes a refractive index-concentration relationship curve that satisfies: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve;
the water inlet control module is used for controlling the water inlet according to the concentration c of the solution to be detected and the target concentration c of the solutiongoalA magnitude relation, which sends a control command to the water intake control valve 200; the control instructions include: responding to the fact that the concentration c of the solution to be detected is larger than the target concentration value c of the solution to be detectedgoalSending an opening control instruction to the water inlet control valve 200; responding to the concentration c of the solution to be detected being less than or equal to the target concentration value c of the solution to be detectedgoalAnd sending a closing control command to the water inlet control valve 200 or outputting a first reminder to a user.
In this embodiment, a mounting portion 110 for mounting the device on the wall of the first container for holding the solution to be measured extends outwards from the middle or the upper portion of the annular housing 101; the mounting portion 110 is of an inverted L-shape.
In this embodiment, the upper portion of the annular housing 101 is further provided with a display module 400 for displaying the concentration of the solution, and an input end of the display module 400 is connected to a third output end of the main controller 300.
In this embodiment, the upper part of the annular housing 101 is further provided with an input module 500 for inputting solute types, and a fourth input end of the main controller 300 is connected with the input module 500.
Optionally, the solute category is one of sucrose, salt, glucose and honey.
In this embodiment, the first inclined surface 106 is made of a light-transmitting material, and the second right-angle surface 108 is made of a light-transmitting material.
In this embodiment, the first inclined surface 106 is a flat surface; the second right-angle surface 108 is planar.
Through the planar design, the refractive index solving precision is improved, the equipment installation accuracy is reduced, and the assembly cost is reduced.
In this embodiment, the main controller 300 further includes an intrinsic offset distance obtaining module, configured to collect an intrinsic offset distance D of the refracted first light on the second light receiving module 103 when the right trapezoid-shaped outlet 105 is empty0；
The refraction ray receiving module is also used for receiving the intrinsic offset distance D0Correcting the offset distance D acquired when the rectangular trapezoid outlet 105 is loaded with the solution; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
Optionally, the second light receiving module 103 is planar;
in this embodiment, the second light receiving module 103 includes a photo-resistor array.
Optionally, the position of the light received by the second light receiving module 103 is obtained according to the array unit with the decreased resistance value of the photoresistor array.
Optionally, the main controller 300 further includes: and the solute input acquisition module is used for acquiring the solute information input by the user.
Optionally, the main controller 300 further includes a storage module, configured to store the at least one solute information for user selection, where the solute information includes a solute name and a plurality of coefficients of a refractive index-concentration relation curve corresponding to the solute name.
It should be noted that, alternatively, the display module 400 is an LCD module; optionally, the display module 400 is a nixie tube.
Optionally, the solute information includes a type of the solute;
in this embodiment, optionally, the solvent is water; optionally, the solute is salt; optionally, the solute is a sugar; it is worth mentioning that in this embodiment, it is not recommended to mix a plurality of substances, so that there are too many variations, i.e. there are many groups of solutions of refractive index and concentration, i.e. salt or sea salt is added to the mixed salt water, sucrose or glucose is added to the mixed sugar water, and honey is added to the mixed honey water.
Preferably, in this embodiment, the solute is a single edible product.
In the actual scene application, a user needs to prepare saline water, the prepared saline water is input into the system, and after the user adds water and salt, the concentration measuring device detects the concentration of the prepared saline water and outputs the concentration in a display mode; according to the actually measured concentration of the brine, a user adds water or salt according to the requirement. Optionally, the salt comprises sea salt and iodized salt.
In another scene, a user needs to configure sugar water, the sugar water is input into the system and configured, and after the user adds water and adds sugar, the concentration measuring device detects the concentration of the configured sugar water and displays the concentration in real time; adding water and sugar according to the requirement. It is worth mentioning that the sugar itself also includes a plurality of kinds, which the system can refine, for example, glucose, sucrose, maltose, honey, etc.
It is worth mentioning that, in the present embodiment, the concentration is a mass percentage concentration.
For the sake of easy understanding, the following further development of the formula in the present embodiment is described.
As shown in fig. 3, the geometrical relationship of the first ray refraction phenomenon indicates that:
θr＝θi-Δθ (1)
the triangle geometric relationship shows that:
from refractive index formula
And the formulas (1) to (2) can be known:
optionally, the solute is sugar water; the concentration c of the sugar water meets the following conditions: c-12.276 n2+39.646n-31.04。
The applicant obtained the data in table 1 by experiments on the ratio of sucrose to water.
TABLE 1 data of the relationship between the refractive index and concentration of sugar water at 18 deg.C
| Refractive index | 1.334 | 1.3477 | 1.3573 | 1.3691 | 1.3872 | 1.4025 | 1.4186 | 1.4407 |
| Concentration of | 0％ | 9.10％ | 16.70％ | 23.10％ | 33.30％ | 41.10％ | 50％ | 60％ |
Obtaining the concentration c of the sucrose syrup by curve fitting, wherein the concentration c meets the following requirements: c-12.276 n2+39.646n-31.04。
Optionally, the solute is saline; the concentration c of the solution to be detected meets the following requirements: c-31.77 n2+91.519 n-65.55.
The applicant obtained the data in table 2 by experiments on the salt to water ratio.
TABLE 2 Experimental data of saline refractive index and concentration relationship at 18 deg.C
| Refractive index | 1.334 | 1.3419 | 1.3479 | 1.3624 | 1.3701 | 1.3813 |
| Concentration of | 0％ | 5％ | 9.10％ | 16.70％ | 20％ | 25％ |
By curve fitting, the concentration c of the brine is obtained to satisfy: c-31.77 n2+91.519 n-65.55.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A household concentration control device for home-made drinking products is characterized by comprising an annular shell, a main controller, a first light emitting module, a second light receiving module and a water inlet control valve; a first water inlet channel is arranged along the radial middle part of the annular shell, a first inlet of the first water inlet channel is connected with a water inlet control valve, and a second outlet of the first water inlet channel comprises a right-angled trapezoid-shaped outlet part;
the first light emitting module is positioned in the annular shell and close to a first mounting part on the side of the shorter bottom edge in one end of a first inclined plane of the right trapezoid-shaped outlet part; the second light receiving module is positioned in the annular shell and close to a second right-angle surface of the right-angle trapezoidal outlet part;
the first light ray emitted by the first light emitting module is parallel to the normal line of the second right-angle surface, and the included angle between the first light ray emitted by the first light emitting module and the normal line of the first inclined surface is a first incident angle thetai(ii) a The distance from the intersection point of the first light ray and the first inclined plane to the second right-angle plane is a first distance L;
the first output end of the main controller is connected with the first light emitting module; the second light receiving module is connected with a second input end of the main controller; the fifth output end of the main controller is connected with the control end of the water inlet control valve; the main controller comprises a first light emitting control module, a refracted light receiving module, a refractive index solving module, a solution concentration solving module and a water inlet control module;
the first light emission control module is used for controlling the first light emission module to emit first light;
the refracted ray receiving module is used for responding to the first ray emitted by the first light emitting module, and acquiring the offset distance D of the first ray emitted by the first light emitting module on the second light receiving module after being refracted by the solution to be measured in the right-angle trapezoidal outlet part at the bottom of the concentration measuring device;
the refractive index solving module is used for solving the refractive index according to the offset distance D, the first distance and the first incidence angle thetaiSolving the refractive index n of the solution to be detected; the refractive index n satisfies:
wherein, thetai≠0；
The solution to be measured concentration solving module is used for obtaining the concentration c of the solution to be measured according to the refractive index of the solution to be measured, the solute information of the solution to be measured and the solvent of the solution to be measured; the solute information includes a refractive index-concentration relationship curve that satisfies: c ═ α n2+ β n- γ, said α, said β, said γ being polynomial coefficients of the refractive index-concentration relationship curve;
the water inlet control module is used for controlling the water inlet according to the concentration c of the solution to be detected and the target concentration c of the solutiongoalSending a control command to the water inlet control valve according to the size relation; the control instructions include: responding to the fact that the concentration c of the solution to be detected is larger than the target concentration value c of the solution to be detectedgoalSending an opening control instruction to the water inlet control valve; responding to the concentration c of the solution to be detected being less than or equal to the target concentration value c of the solution to be detectedgoalAnd sending a closing control instruction to the water inlet control valve or outputting a first prompt to a user.
2. The home-made beverage concentration control device according to claim 1, wherein a mounting portion for mounting the device on a wall of a first container for containing the solution to be measured is extended outwardly from a middle portion or an upper portion of the annular housing; the mounting part is of an inverted L shape.
3. The home-made beverage concentration control device according to claim 1, wherein the upper portion of the annular housing is further provided with a display module for displaying the concentration of the solution, and an input end of the display module is connected to the third output end of the main controller.
4. The home-made beverage strength control device of claim 1, wherein the upper portion of the annular housing is further provided with an input module for inputting the solute type, and a fourth input terminal of the main controller is connected to the input module.
5. The apparatus of claim 1, wherein the first angled surface is transparent and the second angled surface is transparent.
6. The apparatus of claim 1, wherein the first inclined surface is planar; the second right-angle surface is a plane.
7. The apparatus of claim 1, wherein the main controller further comprises an intrinsic offset distance obtaining module for collecting an intrinsic offset distance D of the first light reflected by the second light receiving module when the right-angled trapezoid outlet is empty0；
The refraction ray receiving module is also used for receiving the intrinsic offset distance D0Correcting the offset distance D acquired when the solution is loaded in the right-angled trapezoid-shaped outlet; the offset distance D satisfies: d ═ Dreal-D0Said D isrealIs the actual measurement.
8. The home-made beverage strength control device of claim 1, wherein the second light receiving module comprises a photo-resistor array.
9. The home-made beverage strength control device of claim 1, wherein the main controller further comprises: and the solute input acquisition module is used for acquiring the solute information input by the user.
10. The home-made beverage concentration control device of claim 9, wherein the main controller further comprises a storage module for storing at least one solute information for user selection, the solute information comprising a solute name, a plurality of coefficients of a refractive index-concentration relationship curve corresponding to the solute name.
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| 几种液体的折射率与其浓度关系的经验公式;白泽生 等;《延安大学学报（自然科学版）》;20040331;第23卷(第1期);全文 * |
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| CN108762322A (en) | 2018-11-06 |
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