CN109946198B - Method, medium and device for detecting specific gravity of mixed liquid and urine specific gravity detection device - Google Patents
Method, medium and device for detecting specific gravity of mixed liquid and urine specific gravity detection device Download PDFInfo
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Abstract
The invention relates to a method, a medium and equipment for detecting the specific gravity of mixed liquid and urine specific gravity detection equipment. The method for detecting the specific gravity of the mixed liquid comprises the following steps: measuring the offset distance between the position of the light emitted after the light irradiates the mixed liquid and the corresponding preset reference position; obtaining the content of each main component in the mixed liquid; acquiring the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the mixed liquid; the specific gravity of the mixed liquid is calculated according to the single specific gravity of each main component and the content of each main component. So, can realize measuring the proportion of mixed liquid, avoid adopting the correlation coefficient of single material to carry out the deviation that the proportion detected the production, detection accuracy is high.
Description
Technical Field
The invention relates to the technical field of liquid measurement, in particular to a method, a medium and equipment for detecting the specific gravity of mixed liquid and urine specific gravity detection equipment.
Background
The transmission direction of the light after passing through the liquid is deviated due to refraction, namely the light emitting position and the light incident position are deviated, and the deviation amount is changed due to the specific gravity of the liquid. Based on this, a refraction method (light refraction method) is designed in the traditional scheme to measure the specific gravity of the liquid, a beam of light is adopted to be incident into the liquid to be measured, the offset of the position of the liquid to be measured after penetrating through the liquid to be measured is measured, and the specific gravity of the liquid to be measured is obtained by combining the calibrated linear relation between the specific gravity and the offset.
The refraction method is better than other methods for measuring the specific gravity of liquid, for example, the refraction method can be applied to equipment to realize automatic measurement, and can solve the problem that the weighing method (weighing a calibrated volume of liquid to be measured, weighing the mass by a balance or other weighing devices, and calculating the specific gravity of the liquid to be measured according to a formula rho (M/V)) cannot be applied to automatic measurement; the measurement accuracy of the refraction method is generally higher than that of the float method (the float is placed in the liquid to be measured, and the specific gravity of the liquid to be measured is calculated by reading the height of the liquid to be measured which is discharged by the float).
However, due to the difference of the refractive indexes of different substances to the light, the correlation coefficients of the specific gravity and the offset of different liquids to be measured are different, for example, the correlation coefficients of the sodium chloride solution and the glucose solution are different. When the liquid to be measured is mixed liquid of different dissolved substances, the correlation coefficient of the dissolved liquid corresponding to a single dissolved substance cannot be adopted for calculation, so that when the specific gravity is measured by adopting a refraction method, the method is only suitable for detecting the specific gravity of the dissolved liquid of the substance with a single or known fixed component, and otherwise, the measurement accuracy cannot be ensured.
Disclosure of Invention
In view of the above, it is necessary to provide a method, medium, device and apparatus for detecting the specific gravity of a mixed liquid, which can accurately measure the specific gravity of the mixed liquid, in order to solve the problem that the conventional refractometry method cannot accurately measure the specific gravity of the mixed liquid.
A method for detecting the specific gravity of a mixed liquid comprises the following steps:
measuring the offset distance between the position of the light emitted after the light irradiates the mixed liquid and the corresponding preset reference position;
obtaining the content of each main component in the mixed liquid;
acquiring the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the mixed liquid;
the specific gravity of the mixed liquid is calculated according to the single specific gravity of each main component and the content of each main component.
According to the method for detecting the specific gravity of the mixed liquid, the offset distance between the position emitted after the mixed liquid is irradiated by the light and the reference position is measured, the single specific gravity of each main component is obtained according to the offset distance and the preset coefficient corresponding to each main component in the mixed liquid, the specific gravity of the mixed liquid is obtained through calculation according to the content of each main component and the single specific gravity, the specific gravity of the mixed liquid can be measured, the deviation caused by the fact that the specific gravity is detected by adopting the correlation coefficient of a single substance is avoided, and the detection accuracy is high.
A medium storing a computer program which, when executed by a processor, implements the steps of the above-described method for detecting a specific gravity of a mixed liquid.
An apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above-mentioned mixed liquid specific gravity detection method when executing the computer program.
The medium and the device can realize the specific gravity measurement of the mixed liquid in the same way due to the implementation of the steps of the method for detecting the specific gravity of the mixed liquid, and have high detection accuracy.
A urine specific gravity detection device comprises a light deviation detection device, a component content analyzer and a computer device, wherein the light deviation detection device and the component content analyzer are connected with the computer device;
the light ray deviation detection device irradiates light rays to urine, shoots an image obtained by imaging the emitted light rays, and sends the image to the computer equipment;
the component content analyzer is used for measuring the conductivity of the urine and chemically detecting the urine dryness to respectively obtain the conductivity and a detection result;
the computer equipment obtains the offset distance between the position of light emission and a corresponding preset reference position according to the image, obtains the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the urine, obtains the content of each main component according to the conductivity and the detection result, and obtains the specific gravity of the urine by calculation according to the single specific gravity of each main component and the content of each main component, wherein the main components in the urine comprise sodium chloride, glucose and protein.
According to the urine specific gravity detection device, light rays are irradiated to urine through the light ray offset detection device, images are shot, the detection results of the conductivity of the urine and the chemical detection of urine dryness are obtained through the measurement of the component content analyzer, the computer device obtains the offset distance according to the images, obtains the content of each main component according to the conductivity and the detection results, and obtains the specific gravity of the urine according to the offset distance, the preset coefficient corresponding to each main component in the urine and the content of the main component. Therefore, the specific gravity detection of the urine with complex components can be realized, the accuracy is high, and the clinical requirement can be met.
Drawings
FIG. 1 is a flow chart of a method for measuring specific gravity of a mixed liquid according to an embodiment;
FIG. 2 is a flow chart of a method for measuring specific gravity of a mixed liquid according to another embodiment;
FIG. 3 is a diagram showing a relationship table between a measurement result and a glucose concentration in one embodiment;
FIG. 4 is a graph showing a relationship between a measurement result and a protein concentration in one embodiment;
FIG. 5 is a graphical representation of the linear curves for glucose, protein, and sodium chloride in one embodiment;
FIG. 6 is a block diagram of an embodiment of a light deviation detecting device.
Detailed Description
Referring to fig. 1, in one embodiment, a method for detecting specific gravity of a mixed liquid is provided, which includes the following steps:
s110: and measuring the offset distance between the position of the light ray irradiated on the mixed liquid and the corresponding preset reference position.
The mixed liquid is a liquid in which a plurality of components are mixed and specific gravity needs to be detected. The offset distance between the position from which the light beam is emitted and the reference position may be, specifically, an offset direction and an offset amount of the position of the emitted light beam with respect to the reference position in an image obtained by imaging the light beam emitted after the light beam irradiates the mixed liquid. For example, a laser emits laser to irradiate the mixed liquid, and after the laser penetrates through the mixed liquid, light is condensed by the device and is imaged to obtain an image; the light ray of the brightest part in the center of the image is extracted by acquiring the image and utilizing a known image processing algorithm, and the offset distance is obtained by measuring the offset and the offset direction of the light ray of the brightest part relative to the reference position. In particular, the direction of the offset may be represented by a positive sign, for example a positive sign for a left offset and a negative sign for a right offset, or a positive sign for a right offset and a negative sign for a left offset.
The reference position is a position which is measured in advance and is emitted after the reference liquid is irradiated with the light having the same incident angle as the mixed liquid. Specifically, the reference liquid may be pure water, and correspondingly, the offset distance is an offset direction and an offset amount of a position emitted after the mixed liquid is irradiated with the light and a position emitted after the pure water is irradiated with the light of the same incident angle. For example, the position of the center line of the image obtained by the imaging processing is set as a zero offset reference position, a first distance between the position emitted after the light irradiates pure water and the zero offset reference position is measured, a second distance between the position emitted after the light irradiates the mixed liquid and the zero offset reference position is measured, and the value of the offset distance is equal to the difference between the second distance and the first distance. The reference position is preset, for example, the reference position may be a fixed position, i.e., the same reference position is used for all mixed liquids. The reference position may be measured by irradiating the reference liquid with light before irradiating the mixed liquid with light each time.
S130: and acquiring the content of each main component in the mixed liquid.
The main component is a main substance contained in the mixed liquid. The main substance may include all dissolved substances contained in the mixed liquid, or may include dissolved substances affecting the refractive index of light in the mixed liquid. For example, sodium chloride, glucose, protein, urea, etc. are generally detected in urine of a patient, and sodium chloride, glucose and protein are substances affecting the refractive index of light, so when the mixed liquid is urine, the main components include sodium chloride, glucose and protein. The content of the main component may be measured or may be obtained by manually measuring and receiving information manually input.
S150: and acquiring the single specific gravity of each main component according to the offset distance and the preset coefficient corresponding to each main component in the mixed liquid.
The preset coefficient is a pre-stored value. The main components in the mixed liquid respectively correspond to respective preset coefficients. Specifically, the specific gravity of the main component is a specific gravity at which only a single-component solution dissolving the corresponding main component corresponds to the offset distance; a single component solution is a liquid in which only one substance is dissolved.
S170: the specific gravity of the mixed liquid is calculated according to the single specific gravity of each main component and the content of each main component.
According to the method for detecting the specific gravity of the mixed liquid, the offset distance between the position emitted after the mixed liquid is irradiated by the light and the reference position is measured, the single specific gravity of each main component is obtained according to the offset distance and the preset coefficient corresponding to each main component in the mixed liquid, the specific gravity of the mixed liquid is obtained through calculation according to the content of each main component and the single specific gravity, the specific gravity of the mixed liquid can be measured, the deviation caused by the fact that the specific gravity is detected by adopting the correlation coefficient of a single substance is avoided, and the detection accuracy is high.
When the specific gravity of urine is detected clinically, the accuracy of measuring the specific gravity by adopting a traditional refraction method is low due to the complex and large difference of urine components. The method for detecting the specific gravity of the mixed liquid is used for detecting the specific gravity of urine, can greatly improve the accuracy of specific gravity measurement, meets the clinical requirement, can realize detection automation, and avoids the interference of human factors.
In one embodiment, the mixed liquid is urine having a main component including sodium chloride, glucose, and protein. Referring to fig. 2, step S130 includes steps S131 to S135.
S131: and acquiring the conductivity of the urine obtained by measurement, and carrying out urine dry chemical detection on the urine to obtain a detection result.
The conductive substance in urine is mainly sodium chloride, and the content of the sodium chloride is analyzed by testing the conductivity of the urine. The urine dry chemical detection is to detect corresponding chemical components in urine by using a urine dry chemical analyzer, the chemical components in the urine can change the color of a module on a urine multi-connection test strip, and the color depth is in direct proportion to the concentration of corresponding substances in the urine. In this example, the content of glucose and protein in urine was measured by urine dry chemical detection. The detection result is information corresponding to the color depth on the urine multi-link test strip, for example, the detection result includes a first level color, a second level color, a third level color and a fourth level color, and is sequentially used for indicating that the color depth of the urine multi-link test strip belongs to the first level, the second level, the third level and the fourth level, and the colors from the first level to the fourth level are sequentially deepened. Specifically, the conductivity and the detection result can be obtained by manual input, or can be directly acquired by connecting a device for measuring the conductivity and a urine dry chemical analyzer.
S133: and searching the weight of the sodium chloride corresponding to the conductivity, and acquiring the weight of the glucose and the weight of the protein corresponding to the detection result.
The weight of the sodium chloride corresponding to the conductivity may be specifically found from a stored conductivity-sodium chloride relation table. In this embodiment, the stored conductivity-sodium chloride relationship table is shown in table 1 below, and the mass of the corresponding sodium chloride is found by default according to the conductivity at 18 degrees celsius, for example, the conductivity is 20, and the weight of the corresponding sodium chloride is 13.4g (grams).
TABLE 1
Specifically, the obtaining of the weight of glucose and the weight of protein corresponding to the detection result includes: searching the concentration of glucose and the concentration of protein corresponding to the detection result; calculating the weight of glucose according to the concentration of glucose and the volume of urine, and calculating the mass of protein according to the concentration of protein and the volume of urine. Wherein, the volume of urine can be stored in advance, also can be by manual input. Specifically, the concentration of glucose and the concentration of protein corresponding to the detection result may be found from a stored detection result-glucose concentration relation table, and the concentration of protein corresponding to the detection result may be found from a stored detection result-protein concentration relation table. As shown in FIGS. 3 and 4, the relationship between the measurement result and the glucose concentration and the relationship between the measurement result and the protein concentration are shown, respectively.
S135: and obtaining the content of the sodium chloride, the content of the glucose and the content of the protein in the urine according to the weight of the sodium chloride, the weight of the glucose and the quality of the protein in the urine.
Wherein the sum of the content of sodium chloride, the content of glucose and the content of protein is 1. The content of sodium chloride is obtained by obtaining the conductivity of the urine obtained by measurement, and the detection result obtained by carrying out urine dry chemical detection on the urine is obtained to obtain the content of glucose and the content of protein, so that the accuracy is high. It is understood that in other embodiments, when the mixed liquid is other liquid, the content of each main component may be obtained by other methods, for example, the content of each main component input after manual measurement may be received.
In one embodiment, step S133 includes: acquiring a measured current ambient temperature; and searching the weight of the sodium chloride corresponding to the conductivity at the current ambient temperature, and acquiring the weight of the glucose and the weight of the protein corresponding to the detection result. Specifically, a plurality of conductivities corresponding to each temperature and the weights of sodium chloride corresponding to different conductivities are stored in advance, and the weight of the sodium chloride corresponding to the conductivity at the current ambient temperature can be searched.
The conductivity may vary depending on the weight of sodium chloride at different ambient temperatures, as shown in table 2 below. By obtaining the measured current environment temperature and searching the weight of the sodium chloride corresponding to the conductivity according to the current environment temperature, the accuracy of measuring the content of the sodium chloride can be improved, and the accuracy of detecting the specific gravity is improved.
TABLE 2
In one embodiment, step S135 includes steps (a1) to (a 4).
Step (a 1): the sum of the weight of sodium chloride, the weight of glucose and the weight of protein in the urine was calculated.
Step (a 2): and calculating the ratio of the weight of the sodium chloride to the sum to obtain the content of the sodium chloride in the urine.
Step (a 3): and calculating the ratio of the weight of the glucose to the sum value to obtain the content of the glucose in the urine.
Step (a 4): and calculating the ratio of the weight of the protein to the sum to obtain the content of the protein in the urine.
By calculating the content of each main component based on weight, the processing is simple. For example, the following is formulated:
A＝M_na/(M_na+M_glu+M_pro)；
B＝M_pro/(M_na+M_glu+M_pro)；
C＝M_glu/(M_na+M_glu+M_pro)；
wherein A represents the content of sodium chloride, B represents the content of protein, C represents the content of glucose, M _ na represents the weight of sodium chloride, M _ pro represents the weight of protein, and M _ glu represents the weight of glucose.
In one embodiment, referring to fig. 2, before step S150, step S100 to step S103 are further included.
S100: the method comprises dissolving each main component in distilled water, respectively, preparing single component solution with more than two standard specific gravities, and measuring the offset distance between the position of the sample liquid irradiated by light and the preset reference position.
Wherein, more than two sample liquids with standard specific gravity are obtained by configuring each main component, and the corresponding offset distance of the sample liquid is obtained by correspondingly measuring each sample liquid. For example, 5 kinds of single-component solutions having standard specific gravities of 1.0, 1.01, 1.02, 1.03 and 1.04, respectively, were prepared by dissolving sodium chloride, glucose and protein in distilled water.
S101: and respectively generating linear curves corresponding to the main components according to the offset distances of the sample liquid of each main component under different standard specific gravities.
Specifically, a linear curve of the correspondence between the specific gravity and the offset distance may be obtained by least squares fitting. For example, linear curves of the corresponding main components are generated from the offset distances of the single-component solutions having the standard specific gravities of 1.0, 1.01, 1.02, 1.03 and 1.04, respectively, as shown in fig. 5, the abscissa represents the offset distance between the position emitted after the sample liquid is irradiated with the light and the position emitted after the pure water is irradiated with the light of the same incident angle, the ordinate represents the specific gravity, and three straight lines from the top to the bottom are linear curves of glucose, protein and sodium chloride in this order; the intercept on the ordinate can be calibrated with two single component solutions of standard specific gravity of 1.0 and 1.04.
S103: and acquiring the slope of the linear curve of each main component and storing to obtain a preset coefficient corresponding to the main component.
The accuracy of the preset coefficient can be ensured by testing the preset coefficient by using a plurality of single-component dissolving solutions with standard specific gravities before the step S150.
Steps S101 to S103 may be performed after step S130, after step S110 and before step S130, or before step S110. In the present embodiment, steps S101 to S103 are performed before step S110.
In one embodiment, step S150 includes:
Sgi＝ki*Y+Y0；
wherein, SgiIs the specific gravity of the ith main component, kiAnd Y0 is a preset basic value and is a preset coefficient corresponding to the ith main component, and Y is an offset distance. Specifically, in the present embodiment, when the reference position is a position at which the light beam having the same incident angle is emitted after being irradiated with pure water, Y0 is the specific gravity of pure water.
For example, referring to fig. 5, the preset basic value is an intercept on the ordinate. Specifically, the basic values corresponding to the main components are the same, that is, Y0 is the same, the mixed liquid is urine, and the single specific gravity of sodium chloride, the single specific gravity of glucose and the single specific gravity of protein are calculated according to the following formulas:
Sg_na＝k1*Y+Y0；
Sg_pro＝k2*Y+Y0；
Sg_glu＝k3*Y+Y0；
wherein Sg _ na is the specific gravity of sodium chloride, Sg _ pro is the specific gravity of protein, and Sg _ glu is the specific gravity of glucose.
In one embodiment, with continued reference to fig. 2, step S170 includes steps S171 through S173.
S171: the product of the single specific gravity and the corresponding content of each main component is calculated respectively.
S173: the specific gravity of the mixed liquid is obtained by adding the products corresponding to the main components.
The specific gravity of the mixed liquid is obtained by calibrating the single specific gravity by calculating the sum of the product of the single specific gravity corresponding to each main component and the corresponding content, and the accuracy of the specific gravity detection of the mixed liquid is improved.
For example, the mixed liquid is urine, and the following is calculated:
Sg＝A*Sg_na+B*Sg_PRO+C*Sg_GLU；
the specific gravity Sg of the urine was obtained.
In one embodiment, there is provided a medium storing a computer program, the stored computer program implementing the steps of the above-described method for detecting a specific gravity of a mixed liquid when executed by a processor. In particular, the medium may be a computer readable storage medium.
In one embodiment, an apparatus is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned mixed liquid specific gravity detection method when executing the computer program. In particular, the device may be a computer device.
The medium and the device can realize the specific gravity measurement of the mixed liquid in the same way due to the implementation of the steps of the method for detecting the specific gravity of the mixed liquid, and have high detection accuracy.
In one embodiment, the urine specific gravity detection device comprises a light deviation detection device, a component content analyzer and a computer device, wherein the light deviation detection device and the component content analyzer are connected with the computer device.
The light deviation detection device irradiates light to urine, shoots an image obtained by imaging the emitted light and sends the image to computer equipment. The component content analyzer is used for measuring the conductivity of urine and chemically detecting urine dryness to respectively obtain the conductivity and a detection result. The computer device obtains the offset distance between the position of the light ray emitted according to the image and the corresponding preset reference position, obtains the single specific gravity of each main component according to the offset distance and the preset coefficient corresponding to each main component in the urine, obtains the content of each main component according to the conductivity and the detection result, and calculates the specific gravity of the urine according to the single specific gravity of each main component and the content of each main component. Wherein, the main components in the urine comprise sodium chloride, glucose and protein.
According to the urine specific gravity detection device, light rays are irradiated to urine through the light ray offset detection device, images are shot, the detection results of the conductivity of the urine and the chemical detection of urine dryness are obtained through the measurement of the component content analyzer, the computer device obtains the offset distance according to the images, obtains the content of each main component according to the conductivity and the detection results, and obtains the specific gravity of the urine according to the offset distance, the preset coefficient corresponding to each main component in the urine and the content of the main component. Therefore, the specific gravity detection of the urine with complex components can be realized, the accuracy is high, and the clinical requirement can be met.
Specifically, referring to fig. 6, the light deviation detecting device includes a laser emitter 210 for outputting laser light, a light blocking sheet 220, a hollow prism 230, a convex mirror 240, an imaging filter 250, and a camera 260, which are sequentially disposed along an emitting direction of the laser emitter. A light hole is formed in the light barrier 220, and laser emitted by the laser emitter 210 passes through the light barrier 220 through the light hole; the hollow prism 230 is provided with a hollow channel in the middle for allowing the mixed liquid to pass through the hollow channel, the laser passing through the light hole 220 irradiates the hollow prism 230 and penetrates through the mixed liquid to be emitted, the emitted light is focused by the convex mirror 340 and imaged by the imaging filter 350, and the image with the light is obtained by shooting by the camera 260.
Specifically, the component content analyzer includes a conductivity detection device and a urine dry chemical analyzer. The conductivity detection device measures the conductivity of urine, and the urine dry chemical analyzer is used for carrying out urine dry chemical detection on the urine to obtain a detection result.
In one embodiment, the computer device searches the weight of sodium chloride corresponding to the conductivity, and obtains the weight of glucose and the weight of protein corresponding to the detection result; and obtaining the content of the sodium chloride, the content of the glucose and the content of the protein in the urine according to the weight of the sodium chloride, the weight of the glucose and the quality of the protein in the urine. Wherein the sum of the content of sodium chloride, the content of glucose and the content of protein is 1.
Specifically, the computer device looks up the weight of sodium chloride corresponding to the conductivity from the stored conductivity-sodium chloride relationship table. The computer equipment searches the concentration of glucose and the concentration of protein corresponding to the detection result; calculating the weight of glucose according to the concentration of glucose and the volume of urine, and calculating the mass of protein according to the concentration of protein and the volume of urine.
In one embodiment, the computer device also obtains a measured current ambient temperature; and searching the weight of the sodium chloride corresponding to the conductivity at the current ambient temperature, and acquiring the weight of the glucose and the weight of the protein corresponding to the detection result. By obtaining the measured current environment temperature and searching the weight of the sodium chloride corresponding to the conductivity according to the current environment temperature, the accuracy of measuring the content of the sodium chloride can be improved, and the accuracy of detecting the specific gravity is improved.
Specifically, the computer device calculates the sum of the weight of sodium chloride, the weight of glucose and the weight of protein in the urine; calculating the ratio of the weight of the sodium chloride to the sum to obtain the content of the sodium chloride in the urine; calculating the ratio of the weight of the glucose to the sum to obtain the content of the glucose in the urine; and calculating the ratio of the weight of the protein to the sum to obtain the content of the protein in the urine. By calculating the content of each main component based on weight, the processing is simple.
In one embodiment, the computer device is further configured to measure the offset distance between the position emitted after the sample liquid of each main component is irradiated with the light and the corresponding preset reference position, by using single-component dissolving liquids as sample liquids, wherein each main component is respectively dissolved in distilled water and more than two standard specific gravities are respectively configured; respectively generating linear curves corresponding to the main components according to the offset distances of the sample liquid of each main component under different standard specific gravities; and acquiring the slope of the linear curve of each main component and storing to obtain a preset coefficient corresponding to the main component. The preset coefficient is obtained by testing single-component dissolving liquid with various standard specific gravities in advance, and the accuracy of the preset coefficient can be ensured.
In one embodiment, the computer device is according to:
Sgi＝ki*Y+Y0；
calculating to obtain each mainThe specific gravity of the bulk component alone. Wherein, SgiIs the specific gravity of the ith main component, kiAnd Y0 is a preset basic value and is a preset coefficient corresponding to the ith main component, and Y is an offset distance.
In one embodiment, the computer means calculates the product of the individual specific gravity and the corresponding content of each body component separately; the specific gravity of the mixed liquid is obtained by adding the products corresponding to the main components. The specific gravity of the mixed liquid is obtained by calibrating the single specific gravity by calculating the sum of the product of the single specific gravity corresponding to each main component and the corresponding content, and the accuracy of the specific gravity detection of the mixed liquid is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method for detecting the specific gravity of a mixed liquid is characterized by comprising the following steps:
measuring the offset distance between the position of the light emitted after the light irradiates the mixed liquid and the corresponding preset reference position;
obtaining the content of each main component in the mixed liquid;
acquiring the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the mixed liquid;
and respectively calculating the products of the single specific gravity and the corresponding content of each main component, and adding the products corresponding to the main components to obtain the specific gravity of the mixed liquid.
2. The method for detecting the specific gravity of a mixed liquid according to claim 1, wherein the mixed liquid is urine containing main components including sodium chloride, glucose and protein, and the step of obtaining the content of each main component in the mixed liquid comprises:
acquiring the measured conductivity of the urine and a detection result obtained by carrying out urine dry chemical detection on the urine;
searching the weight of sodium chloride corresponding to the conductivity, and acquiring the weight of glucose and the weight of protein corresponding to the detection result;
and obtaining the content of the sodium chloride, the content of the glucose and the content of the protein in the urine according to the weight of the sodium chloride, the weight of the glucose and the quality of the protein in the urine.
3. The method for detecting the specific gravity of the mixed liquid according to claim 2, wherein the step of searching for the weight of the sodium chloride corresponding to the conductivity and obtaining the weight of the glucose and the weight of the protein corresponding to the detection result comprises:
acquiring a measured current ambient temperature;
and searching the weight of the sodium chloride corresponding to the conductivity at the current environmental temperature, and acquiring the weight of the glucose and the weight of the protein corresponding to the detection result.
4. The method for detecting the specific gravity of mixed liquid according to claim 2, wherein the step of obtaining the content of sodium chloride, the content of glucose and the content of protein in the urine based on the weight of sodium chloride, the weight of glucose and the mass of protein in the urine comprises:
calculating the sum of the weight of sodium chloride, the weight of glucose and the weight of protein in the urine;
calculating the ratio of the weight of the sodium chloride to the sum to obtain the content of the sodium chloride in the urine;
calculating the ratio of the weight of the glucose to the sum to obtain the content of the glucose in the urine;
and calculating the ratio of the weight of the protein to the sum to obtain the content of the protein in the urine.
5. The method for detecting the specific gravity of a mixed liquid according to claim 1, wherein before the obtaining the single specific gravity of each main component based on the offset distance and the preset coefficient corresponding to each main component in the mixed liquid, the method further comprises:
measuring the offset distance between the position emitted after the sample liquid of each main component is irradiated by light and the corresponding preset reference position by using single-component dissolving liquid which is prepared by respectively dissolving each main component in distilled water and respectively configuring more than two standard specific gravities as sample liquid;
respectively generating linear curves corresponding to the main components according to the offset distances of the sample liquid of each main component under different standard specific gravities;
and acquiring the slope of the linear curve of each main component and storing to obtain a preset coefficient corresponding to the main component.
6. The method for detecting the specific gravity of mixed liquid according to claim 1, wherein the obtaining the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the mixed liquid includes:
Sg i =k i *Y+Y0;
wherein,Sg i is as followsiThe single specific gravity of each main component,k i is a preset coefficient corresponding to the ith main component,Y0is a preset basic value, and is,Yis the offset distance.
7. A computer storage medium storing a computer program, characterized in that the stored computer program realizes the steps of the method according to any of claims 1-6 when executed by a processor.
8. Mixed liquid specific gravity detection device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor realizes the steps of the method according to any of the claims 1 to 6 when executing the computer program.
9. The urine specific gravity detection equipment is characterized by comprising a light deviation detection device, a component content analyzer and computer equipment, wherein the light deviation detection device and the component content analyzer are connected with the computer equipment;
the light ray deviation detection device irradiates light rays to urine, shoots an image obtained by imaging the emitted light rays, and sends the image to the computer equipment;
the component content analyzer is used for measuring the conductivity of the urine and chemically detecting the urine dryness to respectively obtain the conductivity and a detection result;
the computer equipment obtains the offset distance between the position of light emission and a corresponding preset reference position according to the image, obtains the single specific gravity of each main component according to the offset distance and a preset coefficient corresponding to each main component in the urine, obtains the content of each main component according to the electric conductivity and the detection result, and obtains the specific gravity of the urine according to the sum of products of the single specific gravity of each main component and the content of each main component, wherein the main components in the urine comprise sodium chloride, glucose and protein.
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| CN103054589A (en) * | 2013-01-31 | 2013-04-24 | 科迈（常州）电子有限公司 | Urine volume dynamic monitoring system and method |
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