Cellulose stock solution viscosity detection method, system and equipment and storage medium

Abstract

The invention discloses a cellulose stock solution viscosity detection method, system and equipment and a storage medium, and relates to the technical field of viscosity detection.The cellulose stock solution viscosity detection method comprises the steps that firstly, cellulose stock solutions with different viscosities are obtained; an instantaneous dripping parameter and a normal dripping parameter of the cellulose stock solution with each viscosity; acquiring a viscosity dripping value and a dripping accumulation parameter; detecting the viscosity of the cellulose stock solution; the method is used for solving the problems that in an existing viscosity detection method for the cellulose stock solution, stock solution characteristics of the cellulose stock solution cannot be adapted, so that the characteristics of the cellulose stock solution subjected to viscosity detection are changed, and follow-up use is affected, and meanwhile, when high-precision viscosity detection is carried out, the viscosity of the cellulose stock solution can be accurately detected. A conventional detection method has the problems of inaccurate detection result and long detection time.

Description

Technical Field

[0001] The present invention relates to the technical field of viscosity detection, and in particular to a method, system, equipment and storage medium for detecting the viscosity of cellulose stock solution. Background Art

[0002] Cellulose solution viscosity test is a method to evaluate the quality of cellulose by measuring the viscosity of cellulose solution. Cellulose is the main component of plant cell walls. Its quality is closely related to many physical and chemical properties, and viscosity is one of the important indicators for measuring cellulose quality. The principle of cellulose viscosity test is to use the non-Newtonian fluid properties of cellulose and starch to measure the viscosity of cellulose and starch solutions through a viscometer, thereby determining the size of cellulose molecular weight and further evaluating the quality of cellulose. The main methods for cellulose solution viscosity test include: cup viscometer method, rotational viscometer method, titration method and cone rotation method.

[0003] Existing methods for detecting the viscosity of cellulose stock solutions are generally relatively broad solution viscosity detection methods, such as using high-speed cameras and bubble generating devices as detection devices, obtaining the process of bubble generation in the solution to be detected by using the detection device, and obtaining feature data of the solution to be detected by video processing and feature extraction, and then performing viscosity detection. Although this detection method can detect viscosity based on bubbles, it is not easy for cellulose stock solutions to generate bubbles, and the use of bubble generating devices will destroy the structure of the cellulose stock solution, thereby causing the properties of the cellulose stock solution after the viscosity detection to change, affecting the subsequent use. For example, in a patent application with publication number CN112666047A, a liquid viscosity detection method is disclosed. The scheme is to control the detection device to perform video acquisition of the droplets of the solution to be detected and the bubble generation process in the solution, and use a soft measurement method to identify the viscosity of the liquid to be detected. When facing high-precision viscosity detection, other conventional detection methods will have problems such as inaccurate detection results and long detection time, such as cup viscometer method, rotational viscometer method and titration method. In view of this, it is necessary to improve the existing viscosity detection method for cellulose stock solutions. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the prior art to at least a certain extent, by proposing a method, system, device and storage medium for detecting the viscosity of a cellulose stock solution, so as to solve the problem that in the existing viscosity detection methods for cellulose stock solution, unconventional detection methods are unable to adapt to the stock solution characteristics of the cellulose stock solution, thereby causing the characteristics of the cellulose stock solution after the viscosity detection to change, affecting the subsequent use; and when faced with high-precision viscosity detection, conventional detection methods will have the problems of inaccurate detection results and long detection time.

[0005] To achieve the above objectives, in a first aspect, the present application provides a method for detecting the viscosity of a cellulose stock solution, comprising the following steps:

[0006] Based on the cup viscometer method, a viscosity cup and a measuring cylinder are placed in a constant temperature chamber, and cellulose stock solutions with different viscosities are obtained;

[0007] Cellulose stock solutions of different viscosities are placed in viscosity cups respectively, and the viscosity cups and measuring cylinders are photographed using a camera; when the cellulose stock solution in the viscosity cup begins to flow out, the instantaneous dripping parameters and the normal dripping parameters of the cellulose stock solution of each viscosity are obtained based on the photographing results of the camera;

[0008] The viscosity dripping value of each viscosity cellulose is obtained by using a viscosity dripping algorithm based on instantaneous dripping parameters and conventional dripping parameters; all viscosity dripping values ​​are analyzed, and dripping accumulation analysis is performed on cellulose stock solutions with the same viscosity dripping value and different viscosities to obtain dripping accumulation parameters;

[0009] The viscosity of the cellulose stock solution was tested based on the viscosity drop value and drop accumulation parameter.

[0010] Furthermore, based on the cup viscometer method, the viscosity cup and the measuring cylinder are placed in a constant temperature chamber, and cellulose stock solutions with different viscosities are obtained, including:

[0011] Obtain a viscosity cup and a measuring cylinder based on the cup viscometer method, and place the viscosity cup and the measuring cylinder in a constant temperature chamber, and adjust the temperature in the constant temperature chamber to T; record the volume of the cellulose stock solution used in the viscosity test using the cup viscometer method as L;

[0012] The viscosities of all detectable cellulose stock solutions were recorded as viscosity ND1 to viscosity ND t ; For any viscosity ND c , get the volume L and viscosity ND c The cellulose stock solution is recorded as the test stock solution SY c , where c is a positive integer less than or equal to t and greater than or equal to 1;

[0013] Obtain the test stock solutions SY corresponding to all viscosities ND.

[0014] Furthermore, the instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera, including:

[0015] For a test stock solution SY of any viscosity ND, the test stock solution SY is placed in a viscosity cup, and the outlet of the viscosity cup is closed; a camera is placed in front of the viscosity cup and the measuring cylinder, and the picture taken at this time is recorded as a pre-drop image;

[0016] When the outlet of the viscosity cup is opened, the camera is started. When the test solution SY dripping from the viscosity cup contacts the bottom of the measuring cylinder for the first time, the picture taken at this time is recorded as an instantaneous dripping image; when the height of the test solution SY in the measuring cylinder coincides with L / 2, the picture taken at this time is recorded as a regular dripping image; when all the test solution SY in the viscosity cup has just completely dripped, the picture taken at this time is recorded as an accumulated dripping image.

[0017] Furthermore, obtaining instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity based on the shooting results of the camera also includes:

[0018] For the instantaneous dripping image: overlap the instantaneous dripping image with the pre-drip image, and record the area in the instantaneous dripping image that does not overlap with the pre-drip image as the instantaneous dripping area; establish a plane rectangular coordinate system, recorded as the dripping analysis coordinate system, where the units of the X-axis and the Y-axis of the dripping analysis coordinate system are both cm; place the instantaneous dripping area in the first quadrant of the dripping analysis coordinate system;

[0019] Use k straight lines parallel to the X-axis to evenly divide the instantaneous dripping area, and record the k straight lines from top to bottom as instantaneous dividing lines SF1 to instantaneous dividing lines SF k ; The area where the instantaneous segmentation line SF overlaps with the instantaneous dripping area is recorded as the instantaneous width; the instantaneous widths of all instantaneous segmentation lines SF are obtained;

[0020] The minimum value of all instantaneous widths is recorded as the shortest instantaneous width, and the instantaneous dripping parameters are obtained using the instantaneous parameter algorithm. The instantaneous parameter algorithm is: Among them, F1 is the instantaneous dripping parameter, f i is the i-th instantaneous width among all instantaneous widths, f min is the shortest instantaneous width, is the average value of all instantaneous widths.

[0021] Furthermore, obtaining instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity based on the shooting results of the camera also includes:

[0022] For the conventional drop image: overlap the conventional drop image with the instantaneous drop image, and record the area in the conventional drop image that does not overlap with the instantaneous drop image as the conventional difference area; establish a plane rectangular coordinate system, recorded as the difference analysis coordinate system, wherein the units of the X-axis and the Y-axis of the difference analysis coordinate system are both cm, and place the conventional difference area in the first quadrant of the difference analysis coordinate system;

[0023] Use p straight lines parallel to the X-axis to evenly divide the conventional difference area, and record the p straight lines from top to bottom as pending segmentation straight lines DF1 to pending segmentation straight lines DF p; The undetermined segmentation lines DF whose number of overlapping areas with the conventional difference area is greater than 1 are recorded from top to bottom as conventional segmentation lines CF1 to conventional segmentation lines CF q , where q is a positive integer less than or equal to p and greater than or equal to 1;

[0024] For any regular dividing line CF z , the conventional segmentation line CF z The areas that overlap with the conventional difference areas are recorded as the first-level overlap length and the second-level overlap length respectively; obtain all conventional segmentation lines CF z The corresponding first-level overlap length and second-level overlap length, where z is a positive integer less than or equal to q and greater than or equal to 1;

[0025] Use the conventional parameter algorithm to obtain the conventional dripping parameters. The conventional dripping algorithm is: Among them, F2 is the conventional dripping parameter, g j is the first-order coincidence length of the jth regular segmentation straight line CF among all regular segmentation straight lines CF, It is the secondary overlap length of the jth regular dividing line CF among all regular dividing lines CF.

[0026] Furthermore, based on the instantaneous dripping parameters and the conventional dripping parameters, the viscosity dripping algorithm is used to obtain the viscosity dripping value of each viscosity cellulose; all viscosity dripping values ​​are analyzed, and the dripping accumulation analysis is performed on the cellulose stock solutions with the same viscosity dripping values ​​and different viscosities, and the dripping accumulation parameters are obtained, including:

[0027] Based on the drop analysis coordinate system and the difference analysis coordinate system, the instantaneous drop parameters and the conventional drop parameters corresponding to the test stock solution SY of all viscosities ND are obtained;

[0028] The viscosity drop algorithm is: Wherein, F3 is the viscosity drop value;

[0029] Obtain the viscosity drop values ​​corresponding to all the test stock solutions SY with a viscosity ND; when the viscosity drop values ​​corresponding to any two test stock solutions SY with a viscosity ND are the same, the two test stock solutions SY with the same viscosity drop values ​​are respectively recorded as the Bunsen stacking stock solution and the associated stacking stock solution; perform drop stacking analysis on the Bunsen stacking stock solution and the associated stacking stock solution;

[0030] The droplet accumulation analysis is as follows: overlap the Bunsen accumulation stock solution with the image before dropping, and record the area of ​​the Bunsen accumulation stock solution that does not overlap with the image before dropping as the Bunsen accumulation area; overlap the associated accumulation stock solution with the image before dropping, and record the area of ​​the associated accumulation stock solution that does not overlap with the image before dropping as the associated accumulation area; establish a plane rectangular coordinate system, which is recorded as the accumulation analysis coordinate system, wherein the units of the X-axis and the Y-axis of the accumulation analysis coordinate system are both cm;

[0031] For the Bunsen stacking stock solution: place the Bunsen stacking area in the stacking analysis coordinate system, and overlap the bottom of the Bunsen stacking area with the X-axis; record the contour of the Bunsen stacking area except the contour that overlaps with the X-axis as the Bunsen curve; mark the vertical coordinate of the highest point of the Bunsen curve as Y1, record the point with the largest slope in the Bunsen curve as the peak slope point, and record the ratio of the slope of the peak slope point to Y1 as the dripping stacking parameter of the Bunsen stacking stock solution;

[0032] For the associated stacking stock solution: place the associated stacking area in the stacking analysis coordinate system, and coincide the bottom of the associated stacking area with the X-axis; the contour of the associated stacking area except the one coincident with the X-axis is recorded as the associated curve; the vertical coordinate of the highest point of the associated curve is marked as Y2, the point with the smallest slope in the associated curve is recorded as the valley slope point, and the ratio of the slope of the valley slope point to Y2 is recorded as the dripping stacking parameter of the associated stacking stock solution.

[0033] Further, the viscosity of the cellulose stock solution is detected based on the viscosity drop value and the drop accumulation parameter, including:

[0034] When the viscosity of the cellulose stock solution is tested, the cellulose stock solution being tested is recorded as the real-time stock solution; based on the cup viscometer method, the viscosity drop value corresponding to the real-time stock solution is obtained and recorded as the real-time drop value;

[0035] When the real-time dripping value is only compared with one test stock solution SY b When the corresponding viscosity drop values ​​are the same, test the original solution SY b The viscosity of the real-time stock solution is recorded as the viscosity of the real-time stock solution, where b is a positive integer less than or equal to t and greater than or equal to 1;

[0036] When the real-time dripping value is the same as the viscosity dripping value corresponding to only two test stock solutions SY, the test stock solutions SY with the same viscosity dripping value as the real-time dripping value are recorded as test stock solution SYv and test stock solution SYv. x Based on the method for obtaining the droplet accumulation parameters of the Bunsen accumulation stock solution and the associated accumulation stock solution, two droplet accumulation parameters corresponding to the real-time stock solution are obtained and recorded as the Bunsen accumulation parameter and the associated accumulation parameter respectively; the test stock solution SY v And test solution SY x The dripping accumulation parameter that is the same as the Bensen accumulation parameter or the associated accumulation parameter is recorded as the real-time accumulation parameter; the viscosity ND of the test stock solution SY corresponding to the real-time accumulation parameter is recorded as the viscosity of the real-time stock solution, wherein v and x are both positive integers less than or equal to t and greater than or equal to 1;

[0037] When the number of the test stock solutions SY having the same viscosity dripping value as the real-time dripping value is greater than 2, the viscosity of the real-time stock solution is retested and the real-time dripping value is obtained for analysis.

[0038] In a second aspect, the present application also provides a cellulose stock solution viscosity detection system, including a stock solution acquisition module, a dripping parameter acquisition module, a stacking parameter screening module and a viscosity detection module;

[0039] The stock solution acquisition module is used to place the viscosity cup and the measuring cylinder in a constant temperature chamber based on the cup viscometer method, and obtain cellulose stock solutions of different viscosities;

[0040] The dripping parameter acquisition module is used to put cellulose stock solutions of different viscosities into viscosity cups respectively, and use a camera to shoot the viscosity cup and the measuring cylinder; when the cellulose stock solution in the viscosity cup begins to flow out, the instantaneous dripping parameter and the normal dripping parameter of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera;

[0041] The accumulation parameter screening module is used to obtain the viscosity dripping value of cellulose of each viscosity using the viscosity dripping algorithm based on the instantaneous dripping parameter and the conventional dripping parameter; analyze all the viscosity dripping values, and perform dripping accumulation analysis on cellulose stock solutions with the same viscosity dripping value and different viscosities to obtain the dripping accumulation parameters;

[0042] The viscosity detection module is used to detect the viscosity of the cellulose stock solution based on the viscosity drip value and the drip accumulation parameter.

[0043] In a third aspect, the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the above method are performed.

[0044] In a fourth aspect, the present application provides a storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the above method are performed.

[0045] Beneficial effects of the present invention: The present invention first places a viscosity cup and a measuring cylinder in a constant temperature chamber based on a cup viscometer method, and obtains cellulose stock solutions of different viscosities; then, the cellulose stock solutions of different viscosities are respectively placed in the viscosity cups, and the viscosity cups and the measuring cylinders are photographed by a camera; and the instantaneous dripping parameters and the normal dripping parameters of the cellulose stock solution of each viscosity are obtained. The advantage of this is that, by obtaining the instantaneous dripping parameters and the normal dripping parameters of the cellulose stock solution of each viscosity, characteristic parameters of the cellulose stock solution when dripping can be obtained, and at the same time, it is ensured that the method for obtaining the characteristic parameters will not destroy the stock solution characteristics of the cellulose stock solution, and prevent the cellulose stock solution from affecting subsequent use due to viscosity detection;

[0046] The present application also uses a viscosity drip algorithm to obtain the viscosity drip value of cellulose of each viscosity; analyzes all viscosity drip values, and performs drip accumulation analysis on cellulose stock solutions with the same viscosity drip value and different viscosities to obtain drip accumulation parameters; finally, the viscosity of the cellulose stock solution is detected based on the viscosity drip value and the drip accumulation parameter. The advantage of this is that by obtaining the viscosity drip value, the viscosity characteristics of the cellulose solution of each viscosity can be obtained, and at the same time, by performing drip accumulation analysis on cellulose stock solutions with the same viscosity drip value and different viscosities, two cellulose stock solutions with different viscosities and the same viscosity drip value can be effectively distinguished, ensuring that when faced with high-precision viscosity detection, the accuracy of the detection results is guaranteed without affecting the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a functional block diagram of the system of the present invention;

[0048] Figure 2 is a flow chart of the steps of the method of the present invention;

[0049] Figure 3 A schematic diagram of a drop analysis coordinate system of the present invention;

[0050] Figure 4 It is a schematic diagram of obtaining the primary overlap length and the secondary overlap length of the present invention;

[0051] Figure 5 It is a schematic structural diagram of the electronic device of the present invention. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Example 1, please refer to Figure 1 As shown, the present application provides a cellulose stock solution viscosity detection system, including a stock solution acquisition module, a dripping parameter acquisition module, a stacking parameter screening module and a viscosity detection module;

[0054] The stock solution acquisition module is used to place the viscosity cup and the measuring cylinder in a constant temperature chamber based on the cup viscometer method, and obtain cellulose stock solutions of different viscosities; the stock solution acquisition module includes a stock solution acquisition unit, and the stock solution acquisition unit is configured with a stock solution acquisition strategy, and the stock solution acquisition strategy includes:

[0055] Obtain a viscosity cup and a measuring cylinder based on the cup viscometer method, and place the viscosity cup and the measuring cylinder in a constant temperature chamber, and adjust the temperature in the constant temperature chamber to T; record the volume of the cellulose stock solution used in the viscosity test using the cup viscometer method as L;

[0056] In the specific implementation process, the ratio of the cellulose stock solution can be adjusted according to the actual laboratory needs and uses, so as to obtain cellulose stock solutions with different viscosities; in this embodiment, a cellulose solution with a viscosity of 100,000 is analyzed;

[0057] The viscosities of all detectable cellulose stock solutions were recorded as viscosity ND1 to viscosity ND t ; For any viscosity ND c , get the volume L and viscosity ND c The cellulose stock solution is recorded as the test stock solution SY c , where c is a positive integer less than or equal to t and greater than or equal to 1;

[0058] The test stock solutions SY corresponding to all viscosities ND are obtained; in this embodiment, the viscosity ND of the test stock solution SY to be analyzed is 100000.

[0059] The dripping parameter acquisition module is used to put cellulose stock solutions of different viscosities into viscosity cups respectively, and use a camera to shoot the viscosity cup and the measuring cylinder; when the cellulose stock solution in the viscosity cup begins to flow out, the instantaneous dripping parameter and the normal dripping parameter of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera;

[0060] The dripping parameter acquisition module includes an instantaneous parameter acquisition unit and a conventional parameter acquisition unit. The instantaneous parameter acquisition unit is configured with an instantaneous parameter acquisition strategy. The instantaneous parameter acquisition strategy includes:

[0061] For a test stock solution SY of any viscosity ND, the test stock solution SY is placed in a viscosity cup, and the outlet of the viscosity cup is closed; a camera is placed in front of the viscosity cup and the measuring cylinder, and the picture taken at this time is recorded as a pre-dropping image; in a specific implementation process, by obtaining the pre-dropping image, it is helpful to effectively peel off the test stock solution SY when dripping in the image when an instantaneous dripping image and an accumulated dripping image are subsequently obtained, and analyze it, thereby improving the efficiency of data processing;

[0062] When the outlet of the viscosity cup is opened, the camera is started. When the test stock solution SY dripping from the viscosity cup contacts the bottom of the measuring cylinder for the first time, the picture taken at this time is recorded as an instantaneous dripping image; when the height of the test stock solution SY in the measuring cylinder coincides with L / 2, the picture taken at this time is recorded as a regular dripping image; when all the test stock solution SY in the viscosity cup is just completely dripped, the picture taken at this time is recorded as an accumulation dripping image;

[0063] In the specific implementation process, by acquiring instantaneous dripping images, conventional dripping images and accumulated dripping images, the influence of the test stock solution SY in different states during dripping can be obtained; for test stock solutions SY of different viscosities, the dripping shape of the test stock solution SY at the beginning of dripping, the dripping shape of the dripping stock solution SY when the dripping is in a stable state, and the accumulated shape after dripping will all have different degrees of difference. By acquiring instantaneous dripping images, conventional dripping images and accumulated dripping images, the above differences can be effectively analyzed to obtain characteristic parameters of cellulose stock solutions of different viscosities. At the same time, parameter acquisition only by dripping can ensure that the characteristics of the cellulose stock solution will not be destroyed after the viscosity test. In this embodiment, the timing of shooting the conventional dripping image is when the height of the test stock solution SY in the measuring cylinder coincides with L / 2. In actual implementation, when the dripping is in a stable state, the conventional dripping image can be shot and obtained;

[0064] For the instantaneous dripping image: overlap the instantaneous dripping image with the pre-drip image, and record the area in the instantaneous dripping image that does not overlap with the pre-drip image as the instantaneous dripping area; establish a plane rectangular coordinate system, recorded as the dripping analysis coordinate system, where the units of the X-axis and the Y-axis of the dripping analysis coordinate system are both cm; place the instantaneous dripping area in the first quadrant of the dripping analysis coordinate system;

[0065] Use k straight lines parallel to the X-axis to evenly divide the instantaneous dripping area, and record the k straight lines from top to bottom as instantaneous dividing lines SF1 to instantaneous dividing lines SF k ; The area where the instantaneous segmentation line SF overlaps with the instantaneous dripping area is recorded as the instantaneous width; the instantaneous widths of all instantaneous segmentation lines SF are obtained; in the specific real-time process, the value of k can be set according to the maximum value that can be segmented during the actual analysis. The larger the value of k, the more accurate the instantaneous dripping parameters calculated; in this embodiment, the value of k is set to 5; for example, when processing the test stock solution SY with a viscosity of 100000, the drop analysis coordinate system obtained is as follows Figure 3 As shown, the area where GG1 is located is the instantaneous dripping area, the straight line DD0 is the instantaneous segmentation straight line SF, and the width of the line segment DD3 formed by the point DD1 and the point DD2 is the instantaneous width corresponding to the straight line DD0;

[0066] The minimum value of all instantaneous widths is recorded as the shortest instantaneous width, and the instantaneous dripping parameters are obtained using the instantaneous parameter algorithm. The instantaneous parameter algorithm is: Among them, F1 is the instantaneous dripping parameter, f i is the i-th instantaneous width among all instantaneous widths, f min is the shortest instantaneous width, is the average value of all instantaneous widths; in the specific implementation process, for example, in one data processing, all instantaneous widths obtained are 1.2 cm, 1.1 cm, 0.5 cm, 1 cm and 1.2 cm respectively, then by calculation, f is 1, f min is 0.5, and F1 is 1.59; by obtaining the instantaneous dripping parameters, the parameters corresponding to the dripping shape of the test liquid SY when it just starts dripping can be obtained, which is helpful for the subsequent analysis of the parameters of the test liquid SY with different viscosities.

[0067] The conventional parameter acquisition unit is configured with a conventional parameter acquisition strategy, which includes:

[0068] For the conventional drop image: overlap the conventional drop image with the instantaneous drop image, and record the area in the conventional drop image that does not overlap with the instantaneous drop image as the conventional difference area; establish a plane rectangular coordinate system, recorded as the difference analysis coordinate system, wherein the units of the X-axis and the Y-axis of the difference analysis coordinate system are both cm, and place the conventional difference area in the first quadrant of the difference analysis coordinate system;

[0069] Use p straight lines parallel to the X-axis to evenly divide the conventional difference area, and record the p straight lines from top to bottom as pending segmentation straight lines DF1 to pending segmentation straight lines DF p ; The undetermined segmentation lines DF whose number of overlapping areas with the conventional difference area is greater than 1 are recorded from top to bottom as conventional segmentation lines CF1 to conventional segmentation lines CF q , where q is a positive integer less than or equal to p and greater than or equal to 1;

[0070] For any regular dividing line CF z , the conventional segmentation line CF z The areas that overlap with the conventional difference areas are recorded as the first-level overlap length and the second-level overlap length respectively; obtain all conventional segmentation lines CF z The corresponding first-level overlap length and second-level overlap length, where z is a positive integer less than or equal to q and greater than or equal to 1; in the specific implementation process, for example, in a data processing, the conventional difference area obtained is as follows Figure 4 As shown in the area indicated by QQ1 and QQ2, the straight line CF is a conventional segmentation straight line. Through analysis, it can be obtained that the lengths of LL1 and LL2 are the primary overlap length and the secondary overlap length corresponding to the straight line CF.

[0071] Use the conventional parameter algorithm to obtain the conventional dripping parameters. The conventional dripping algorithm is: Among them, F2 is the conventional dripping parameter, g j is the first-order coincidence length of the jth regular segmentation straight line CF among all regular segmentation straight lines CF, is the secondary overlap length of the jth regular segmentation straight line CF among all regular segmentation straight lines CF; in the specific implementation process, for example, in one data processing, the primary overlap lengths are 0.2 cm, 0.1 cm, 0.2 cm and 0.2 cm, and the secondary overlap lengths are 0.1 cm, 0.2 cm, 0.1 cm and 0.1 cm, then it can be calculated that F2 is 0.01; by obtaining the conventional dripping parameters, the parameters corresponding to the dripping shape of the dripping stock solution SY when the dripping is in a stable state can be obtained, which is helpful for the subsequent analysis of the parameters of the test stock solutions SY with different viscosities.

[0072] The accumulation parameter screening module is used to obtain the viscosity dripping value of cellulose of each viscosity using the viscosity dripping algorithm based on the instantaneous dripping parameter and the conventional dripping parameter; analyze all the viscosity dripping values, and perform dripping accumulation analysis on cellulose stock solutions with the same viscosity dripping value and different viscosities to obtain the dripping accumulation parameters;

[0073] The stacking parameter screening module includes a stacking parameter screening unit, which is configured with a stacking parameter screening strategy. The stacking parameter screening strategy includes: obtaining instantaneous dripping parameters and conventional dripping parameters corresponding to the test stock solutions SY of all viscosities ND based on a dripping analysis coordinate system and a difference analysis coordinate system;

[0074] The viscosity drop algorithm is: Wherein, F3 is the viscosity drop value; in the specific implementation process, for example, when processing data, F1 is 1.59 and F2 is 0.01, then by calculation, it can be obtained that the viscosity drop value is 15900; by obtaining the viscosity drop value, the characteristic parameters corresponding to each viscosity of the cellulose stock solution can be obtained, which is helpful for subsequent viscosity detection;

[0075] Obtain the viscosity drop values ​​corresponding to all the test stock solutions SY with a viscosity of ND; when the viscosity drop values ​​corresponding to any two test stock solutions SY with a viscosity of ND are the same, the two test stock solutions SY with the same viscosity drop values ​​are respectively recorded as the Bunsen stacking stock solution and the associated stacking stock solution; perform drop stacking analysis on the Bunsen stacking stock solution and the associated stacking stock solution; in a specific implementation process, for example, in a data processing, the viscosity drop value of the test stock solution SY with a viscosity of 100000 is 15900, and the viscosity drop value of the test stock solution SY with a viscosity of 110000 is 15900. In order to distinguish the characteristics of the cellulose stock solutions with a viscosity of 100000 and a viscosity of 110000, a drop stacking analysis is required to ensure that there will be no mismeasurement in the subsequent viscosity test;

[0076] The droplet accumulation analysis is as follows: overlap the Bunsen accumulation stock solution with the image before dropping, and record the area of ​​the Bunsen accumulation stock solution that does not overlap with the image before dropping as the Bunsen accumulation area; overlap the associated accumulation stock solution with the image before dropping, and record the area of ​​the associated accumulation stock solution that does not overlap with the image before dropping as the associated accumulation area; establish a plane rectangular coordinate system, which is recorded as the accumulation analysis coordinate system, wherein the units of the X-axis and the Y-axis of the accumulation analysis coordinate system are both cm;

[0077] For the Bunsen stacking stock solution: place the Bunsen stacking area in the stacking analysis coordinate system, and overlap the bottom of the Bunsen stacking area with the X-axis; record the contour of the Bunsen stacking area except the contour that overlaps with the X-axis as the Bunsen curve; mark the vertical coordinate of the highest point of the Bunsen curve as Y1, record the point with the largest slope in the Bunsen curve as the peak slope point, and record the ratio of the slope of the peak slope point to Y1 as the dripping stacking parameter of the Bunsen stacking stock solution; in the specific implementation process, for example, in a data processing, the Bunsen stacking stock solution is a test stock solution SY with a viscosity of 100000, and after obtaining the Bunsen stacking area, the obtained Y1 is 10cm, and the slope of the peak slope point is 1, then it can be calculated that the dripping stacking parameter of the Bunsen stacking stock solution with a viscosity of 100000 is 0.1;

[0078] For the associated stacking stock solution: place the associated stacking area in the stacking analysis coordinate system, and coincide the bottom of the associated stacking area with the X-axis; the contour of the associated stacking area except the one coincident with the X-axis is recorded as the associated curve; the vertical coordinate of the highest point of the associated curve is marked as Y2, the point with the smallest slope in the associated curve is recorded as the valley slope point, and the ratio of the slope of the valley slope point to Y2 is recorded as the dripping stacking parameter of the associated stacking stock solution.

[0079] The viscosity detection module is used to detect the viscosity of the cellulose stock solution based on the viscosity drop value and the drop accumulation parameter; the viscosity detection module includes a viscosity detection unit, and the viscosity detection unit is configured with a viscosity detection strategy, and the viscosity detection strategy includes: when the viscosity of the cellulose stock solution is tested, the cellulose stock solution being tested is recorded as the real-time stock solution; based on the cup viscometer method, the viscosity drop value corresponding to the real-time stock solution is obtained and recorded as the real-time drop value;

[0080] When the real-time dripping value is only compared with one test stock solution SY b When the corresponding viscosity drop values ​​are the same, test the original solution SY b The viscosity of the real-time stock solution is recorded as the viscosity of the real-time stock solution, where b is a positive integer less than or equal to t and greater than or equal to 1;

[0081] When the real-time dripping value is the same as the viscosity dripping value corresponding to only two test stock solutions SY, the test stock solutions SY with the same viscosity dripping value as the real-time dripping value are recorded as the test stock solutions SY. v With test solution SY xBased on the method for obtaining the droplet accumulation parameters of the Bunsen accumulation stock solution and the associated accumulation stock solution, two droplet accumulation parameters corresponding to the real-time stock solution are obtained and recorded as the Bunsen accumulation parameter and the associated accumulation parameter respectively; the test stock solution SY v And test solution SY x The dripping accumulation parameter that is the same as the Bensen accumulation parameter or the associated accumulation parameter is recorded as the real-time accumulation parameter; the viscosity ND of the test stock solution SY corresponding to the real-time accumulation parameter is recorded as the viscosity of the real-time stock solution, wherein v and x are both positive integers less than or equal to t and greater than or equal to 1;

[0082] In the specific implementation process, for example, in one data processing, the real-time dripping value is 15900, and the viscosity dripping value of the test stock solution SY with a viscosity of 100000 is 15900, and the viscosity dripping value of the test stock solution SY with a viscosity of 110000 is 15900; through the dripping accumulation analysis, the dripping accumulation parameter of the Bunsen accumulation stock solution with a viscosity of 100000 is 0.1; the dripping accumulation parameter of the associated accumulation stock solution with a viscosity of 110000 is 0.2; the Bunsen accumulation parameter and the associated accumulation parameter are 0.1 and 0.1 respectively, then the corresponding Bunsen accumulation parameter of the real-time stock solution is the same as the Bunsen accumulation parameter of the test stock solution SY with a viscosity of 100000, and the corresponding associated accumulation parameter of the real-time stock solution is different from the dripping accumulation parameter of the test stock solution SY with a viscosity of 110000, then the viscosity of the real-time stock solution can be recorded as 100000;

[0083] When the number of the test stock solutions SY having the same viscosity dripping value as the real-time dripping value is greater than 2, the viscosity of the real-time stock solution is retested and the real-time dripping value is obtained for analysis.

[0084] Example 2, please refer to Figure 2 As shown, the present application also provides a method for detecting the viscosity of cellulose stock solution, comprising the following steps:

[0085] Step S1, placing a viscosity cup and a measuring cylinder in a constant temperature chamber based on a cup viscometer method, and obtaining cellulose stock solutions of different viscosities; Step S1 includes: Step S101, obtaining a viscosity cup and a measuring cylinder based on a cup viscometer method, and placing the viscosity cup and the measuring cylinder in a constant temperature chamber, and adjusting the temperature in the constant temperature chamber to T; recording the volume of the cellulose stock solution used for viscosity detection by the cup viscometer method as L;

[0086] Step S102: record the viscosities of all detectable cellulose stock solutions as viscosities ND1 to ND t ; For any viscosity ND c , get the volume L and viscosity ND c The cellulose stock solution is recorded as the test stock solution SY c, where c is a positive integer less than or equal to t and greater than or equal to 1;

[0087] Step S103, obtaining the test stock solutions SY corresponding to all viscosities ND.

[0088] Step S2, placing cellulose stock solutions of different viscosities into viscosity cups respectively, and photographing the viscosity cups and measuring cylinders with a camera; when the cellulose stock solution in the viscosity cup begins to flow out, obtaining instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity based on the photographing results of the camera;

[0089] Step S2 includes: step S201, for a test stock solution SY of any viscosity ND, the test stock solution SY is placed in a viscosity cup, and the outlet of the viscosity cup is closed; a camera is placed in front of the viscosity cup and the measuring cylinder, and a picture taken at this time is recorded as a pre-dropping image;

[0090] Step S202, when the outlet of the viscosity cup is opened, the camera is started, and when the test stock solution SY dripping from the viscosity cup contacts the bottom of the measuring cylinder for the first time, the picture taken at this time is recorded as an instantaneous dripping image; when the height of the test stock solution SY in the measuring cylinder coincides with L / 2, the picture taken at this time is recorded as a regular dripping image; when all the test stock solution SY in the viscosity cup is just completely dripped, the picture taken at this time is recorded as an accumulation dripping image;

[0091] Step S203, for the instantaneous dripping image: overlap the instantaneous dripping image with the pre-drip image, and record the area in the instantaneous dripping image that does not overlap with the pre-drip image as the instantaneous dripping area; establish a plane rectangular coordinate system, recorded as the dripping analysis coordinate system, wherein the units of the X-axis and the Y-axis of the dripping analysis coordinate system are both cm; place the instantaneous dripping area in the first quadrant of the dripping analysis coordinate system;

[0092] Step S204: Use k straight lines parallel to the X-axis to evenly divide the instantaneous dripping area, and record the k straight lines from top to bottom as instantaneous dividing lines SF1 to instantaneous dividing lines SF k ; The area where the instantaneous segmentation line SF overlaps with the instantaneous dripping area is recorded as the instantaneous width; the instantaneous widths of all instantaneous segmentation lines SF are obtained;

[0093] Step S205: record the minimum value of all instantaneous widths as the shortest instantaneous width, and use the instantaneous parameter algorithm to obtain the instantaneous dripping parameter. The instantaneous parameter algorithm is: Among them, F1 is the instantaneous dripping parameter, f i is the i-th instantaneous width among all instantaneous widths, f min is the shortest instantaneous width, is the average value of all instantaneous widths;

[0094] Step S206, for the conventional drop image: overlap the conventional drop image with the instantaneous drop image, and record the area in the conventional drop image that does not overlap with the instantaneous drop image as the conventional difference area; establish a plane rectangular coordinate system, recorded as the difference analysis coordinate system, wherein the units of the X-axis and the Y-axis of the difference analysis coordinate system are both cm, and place the conventional difference area in the first quadrant of the difference analysis coordinate system;

[0095] Step S207: Use p straight lines parallel to the X axis to evenly divide the conventional difference region, and record the p straight lines from top to bottom as pending division straight lines DF1 to pending division straight lines DF p ; The undetermined segmentation lines DF whose number of overlapping areas with the conventional difference area is greater than 1 are recorded from top to bottom as conventional segmentation lines CF1 to conventional segmentation lines CF q , where q is a positive integer less than or equal to p and greater than or equal to 1;

[0096] Step S208: for any regular segmentation line CF z , the conventional segmentation line CF z The areas that overlap with the conventional difference areas are recorded as the first-level overlap length and the second-level overlap length respectively; obtain all conventional segmentation lines CF z The corresponding first-level overlap length and second-level overlap length, where z is a positive integer less than or equal to q and greater than or equal to 1;

[0097] Step S209, using a conventional parameter algorithm to obtain conventional dripping parameters, the conventional dripping algorithm is: Among them, F2 is the conventional dripping parameter, g j is the first-order coincidence length of the jth regular segmentation straight line CF among all regular segmentation straight lines CF, It is the secondary overlap length of the jth regular dividing line CF among all regular dividing lines CF.

[0098] Step S3, using a viscosity dripping algorithm based on instantaneous dripping parameters and conventional dripping parameters to obtain a viscosity dripping value of cellulose of each viscosity; analyzing all viscosity dripping values, and performing a dripping accumulation analysis on cellulose stock solutions with the same viscosity dripping values ​​and different viscosities to obtain a dripping accumulation parameter;

[0099] Step S3 includes: step S301, obtaining instantaneous dripping parameters and conventional dripping parameters corresponding to all test stock solutions SY with a viscosity ND based on a dripping analysis coordinate system and a difference analysis coordinate system;

[0100] Step S302, the viscosity dripping algorithm is: Wherein, F3 is the viscosity drop value;

[0101] Step S303, obtaining the viscosity drop values ​​corresponding to all the test stock solutions SY with a viscosity ND; when the viscosity drop values ​​corresponding to any two test stock solutions SY with a viscosity ND are the same, the two test stock solutions SY with the same viscosity drop values ​​are respectively recorded as the Bunsen stacking stock solution and the associated stacking stock solution; performing drop stacking analysis on the Bunsen stacking stock solution and the associated stacking stock solution;

[0102] Step S304, the droplet accumulation analysis is as follows: Step S3041, overlap the Bunsen accumulation stock solution with the image before dropping, and record the area of ​​the Bunsen accumulation stock solution that does not overlap with the image before dropping as the Bunsen accumulation area; overlap the associated accumulation stock solution with the image before dropping, and record the area of ​​the associated accumulation stock solution that does not overlap with the image before dropping as the associated accumulation area; establish a plane rectangular coordinate system, record it as the accumulation analysis coordinate system, wherein the units of the X-axis and the Y-axis of the accumulation analysis coordinate system are both cm;

[0103] Step S3042, for the Bunsen stacking stock solution: place the Bunsen stacking region in the stacking analysis coordinate system, and make the bottom of the Bunsen stacking region coincide with the X-axis; record the contour of the Bunsen stacking region except the contour coincident with the X-axis as the Bunsen curve; mark the vertical coordinate of the highest point of the Bunsen curve as Y1, record the point with the largest slope in the Bunsen curve as the peak slope point, and record the ratio of the slope of the peak slope point to Y1 as the dripping stacking parameter of the Bunsen stacking stock solution;

[0104] Step S3043, for the associated stacking stock solution: place the associated stacking area in the stacking analysis coordinate system, and make the bottom of the associated stacking area coincide with the X-axis; record the contour of the associated stacking area except the contour coincident with the X-axis as the associated curve; mark the vertical coordinate of the highest point of the associated curve as Y2, record the point with the smallest slope in the associated curve as the valley slope point, and record the ratio of the slope of the valley slope point to Y2 as the dripping stacking parameter of the associated stacking stock solution.

[0105] Step S4, detecting the viscosity of the cellulose stock solution based on the viscosity drop value and the drop accumulation parameter; Step S4 includes:

[0106] Step S401, when the viscosity of the cellulose stock solution is tested, the tested cellulose stock solution is recorded as the real-time stock solution; based on the cup viscometer method, a viscosity drop value corresponding to the real-time stock solution is obtained, which is recorded as the real-time drop value;

[0107] Step S402, when the real-time dripping value is only consistent with one test stock solution SY b When the corresponding viscosity drop values ​​are the same, test the original solution SY b The viscosity of the real-time stock solution is recorded as the viscosity of the real-time stock solution, where b is a positive integer less than or equal to t and greater than or equal to 1;

[0108] Step S403: when the real-time dripping value is the same as the viscosity dripping value corresponding to only two test stock solutions SY, the test stock solutions SY having the same viscosity dripping value as the real-time dripping value are recorded as the test stock solutions SY v With test solution SY x Based on the method for obtaining the droplet accumulation parameters of the Bunsen accumulation stock solution and the associated accumulation stock solution, two droplet accumulation parameters corresponding to the real-time stock solution are obtained and recorded as the Bunsen accumulation parameter and the associated accumulation parameter respectively; the test stock solution SY v And test solution SY x The dripping accumulation parameter that is the same as the Bensen accumulation parameter or the associated accumulation parameter is recorded as the real-time accumulation parameter; the viscosity ND of the test stock solution SY corresponding to the real-time accumulation parameter is recorded as the viscosity of the real-time stock solution, wherein v and x are both positive integers less than or equal to t and greater than or equal to 1;

[0109] Step S404, when the number of the test stock solutions SY having the same viscosity dripping value as the real-time dripping value is greater than 2, the viscosity of the real-time stock solution is retested and the real-time dripping value is obtained for analysis.

[0110] Example 3, please refer to Figure 5 As shown, Figure 5 The structural schematic diagram of an electronic device is illustrated, and the electronic device may include: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus. The memory stores computer-readable instructions, and the processor can call the instructions in the memory. When the computer-readable instructions are executed by the processor, the steps in a method for detecting the viscosity of a cellulose stock solution are executed to achieve the following functions: first, a viscosity cup and a measuring cylinder are placed in a constant temperature chamber based on a cup viscometer method, and cellulose stock solutions of different viscosities are obtained; then, cellulose stock solutions of different viscosities are placed in viscosity cups respectively, and the viscosity cups and measuring cylinders are photographed using a camera; instantaneous dripping parameters and normal dripping parameters of cellulose stock solutions of each viscosity are obtained; and a viscosity dripping algorithm is used to obtain the viscosity dripping value of cellulose of each viscosity; all viscosity dripping values ​​are analyzed, and dripping accumulation analysis is performed on cellulose stock solutions with the same viscosity dripping values ​​and different viscosities to obtain dripping accumulation parameters; finally, the viscosity of the cellulose stock solution is detected based on the viscosity dripping value and the dripping accumulation parameter.

[0111] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art, and the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk.

[0112] Embodiment 4, the present application also provides a computer-readable storage medium, the present application provides a storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the steps in the above method for detecting the viscosity of a cellulose stock solution are executed to achieve the following functions: first, based on the cup viscometer method, a viscosity cup and a measuring cylinder are placed in a constant temperature chamber, and cellulose stock solutions of different viscosities are obtained; then, the cellulose stock solutions of different viscosities are placed in viscosity cups respectively, and the viscosity cups and measuring cylinders are photographed with a camera; the instantaneous dripping parameters and normal dripping parameters of the cellulose stock solutions of each viscosity are obtained; the viscosity dripping algorithm is also used to obtain the viscosity dripping value of the cellulose of each viscosity; all viscosity dripping values ​​are analyzed, and dripping accumulation analysis is performed on cellulose stock solutions with the same viscosity dripping values ​​and different viscosities to obtain dripping accumulation parameters; finally, the viscosity of the cellulose stock solution is detected based on the viscosity dripping value and the dripping accumulation parameter.

[0113] Through the description of the above implementation methods, the embodiments of the present invention can be provided as methods, systems or computer program products. Based on such an understanding, the above technical solutions can be essentially or partly contributed to the prior art in the form of software products, which can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and include several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0114] In the embodiments provided in the present application, it should be understood that the disclosed system or method can be implemented in other ways. The embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of systems, modules and units can be electrical, mechanical or other forms.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for detecting the viscosity of a cellulose stock solution, characterized in that: The steps include: Based on the cup viscometer method, a viscosity cup and a measuring cylinder are placed in a constant temperature chamber, and cellulose stock solutions with different viscosities are obtained; Cellulose stock solutions of different viscosities are placed in viscosity cups respectively, and the viscosity cups and measuring cylinders are photographed with a camera; when the cellulose stock solution in the viscosity cup begins to flow out, the instantaneous dripping parameters and the normal dripping parameters of the cellulose stock solution of each viscosity are obtained based on the photographing results of the camera; The viscosity dripping value of cellulose of each viscosity is obtained by using a viscosity dripping algorithm based on instantaneous dripping parameters and conventional dripping parameters; All viscosity drop values ​​are analyzed, and drop accumulation analysis is performed on cellulose stock solutions with the same viscosity drop value and different viscosities to obtain drop accumulation parameters; The viscosity of the cellulose stock solution was tested based on the viscosity drop value and drop accumulation parameter.

2. The method for detecting viscosity of cellulose stock solution according to claim 1, characterized in that: Based on the cup viscometer method, the viscosity cup and the measuring cylinder are placed in a constant temperature chamber, and cellulose stock solutions with different viscosities are obtained, including: Obtain a viscosity cup and a measuring cylinder based on the cup viscometer method, and place the viscosity cup and the measuring cylinder in a constant temperature chamber, and adjust the temperature in the constant temperature chamber to T; record the volume of the cellulose stock solution used in the viscosity test using the cup viscometer method as L; The viscosities of all detectable cellulose stock solutions were recorded as viscosity ND1 to viscosity ND t ; For any viscosity ND c , get the volume L and viscosity ND c The cellulose stock solution is recorded as the test stock solution SY c , where c is a positive integer less than or equal to t and greater than or equal to 1; Obtain the test stock solutions SY corresponding to all viscosities ND.

3. The method for detecting viscosity of cellulose stock solution according to claim 2, characterized in that: Based on the camera's shooting results, the instantaneous dripping parameters and normal dripping parameters of each viscosity of cellulose stock solution are obtained, including: For a test stock solution SY of any viscosity ND, the test stock solution SY is placed in a viscosity cup, and the outlet of the viscosity cup is closed; a camera is placed in front of the viscosity cup and the measuring cylinder, and the picture taken at this time is recorded as a pre-drop image; When the outlet of the viscosity cup is opened, the camera is started. When the test solution SY dripping from the viscosity cup contacts the bottom of the measuring cylinder for the first time, the picture taken at this time is recorded as an instantaneous dripping image; when the height of the test solution SY in the measuring cylinder coincides with L / 2, the picture taken at this time is recorded as a regular dripping image; when all the test solution SY in the viscosity cup has just completely dripped, the picture taken at this time is recorded as an accumulated dripping image.

4. The method for detecting viscosity of cellulose stock solution according to claim 3, characterized in that: The instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera, and also include: For the instantaneous dripping image: overlap the instantaneous dripping image with the pre-drip image, and record the area in the instantaneous dripping image that does not overlap with the pre-drip image as the instantaneous dripping area; establish a plane rectangular coordinate system, recorded as the dripping analysis coordinate system, where the units of the X-axis and the Y-axis of the dripping analysis coordinate system are both cm; place the instantaneous dripping area in the first quadrant of the dripping analysis coordinate system; Use k straight lines parallel to the X-axis to evenly divide the instantaneous dripping area, and record the k straight lines from top to bottom as instantaneous dividing lines SF1 to instantaneous dividing lines SF k ; The area where the instantaneous segmentation line SF overlaps with the instantaneous dripping area is recorded as the instantaneous width; the instantaneous widths of all instantaneous segmentation lines SF are obtained; The minimum value of all instantaneous widths is recorded as the shortest instantaneous width, and the instantaneous dripping parameters are obtained using the instantaneous parameter algorithm. The instantaneous parameter algorithm is: Among them, F1 is the instantaneous dripping parameter, f i is the i-th instantaneous width among all instantaneous widths, f mim is the shortest instantaneous width, is the average value of all instantaneous widths.

5. The method for detecting viscosity of cellulose stock solution according to claim 4, characterized in that: The instantaneous dripping parameters and normal dripping parameters of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera, and also include: For the conventional drop image: overlap the conventional drop image with the instantaneous drop image, and record the area in the conventional drop image that does not overlap with the instantaneous drop image as the conventional difference area; establish a plane rectangular coordinate system, recorded as the difference analysis coordinate system, wherein the units of the X-axis and the Y-axis of the difference analysis coordinate system are both cm, and place the conventional difference area in the first quadrant of the difference analysis coordinate system; Use p straight lines parallel to the X-axis to evenly divide the conventional difference area, and record the p straight lines from top to bottom as pending segmentation straight lines DF1 to pending segmentation straight lines DF p ; The undetermined segmentation lines DF whose number of overlapping areas with the conventional difference area is greater than 1 are recorded from top to bottom as conventional segmentation lines CF1 to conventional segmentation lines CF q , where q is a positive integer less than or equal to p and greater than or equal to 1; For any regular dividing line CF z , the conventional segmentation line CF z The areas that overlap with the conventional difference areas are recorded as the first-level overlap length and the second-level overlap length respectively; obtain all conventional segmentation lines CF z The corresponding first-level overlap length and second-level overlap length, where z is a positive integer less than or equal to q and greater than or equal to 1; Use the conventional parameter algorithm to obtain the conventional dripping parameters. The conventional dripping algorithm is: Among them, F2 is the conventional dripping parameter, g j is the first-order coincidence length of the jth regular segmentation straight line CF among all regular segmentation straight lines CF, It is the secondary overlap length of the jth regular dividing line CF among all regular dividing lines CF.

6. The method for detecting viscosity of cellulose stock solution according to claim 5, characterized in that: The viscosity dripping value of cellulose of each viscosity is obtained by using a viscosity dripping algorithm based on instantaneous dripping parameters and conventional dripping parameters; All viscosity drop values ​​are analyzed, and drop accumulation analysis is performed on cellulose stock solutions with the same viscosity drop value and different viscosities. The drop accumulation parameters obtained include: Based on the drop analysis coordinate system and the difference analysis coordinate system, the instantaneous drop parameters and the conventional drop parameters corresponding to the test stock solution SY of all viscosities ND are obtained; The viscosity drop algorithm is: Wherein, F3 is the viscosity drop value; Obtain the viscosity drop values ​​corresponding to all the test stock solutions SY with a viscosity ND; when the viscosity drop values ​​corresponding to any two test stock solutions SY with a viscosity ND are the same, the two test stock solutions SY with the same viscosity drop values ​​are respectively recorded as the Bunsen stacking stock solution and the associated stacking stock solution; perform drop stacking analysis on the Bunsen stacking stock solution and the associated stacking stock solution; The droplet accumulation analysis is as follows: overlap the Bunsen accumulation stock solution with the image before dropping, and record the area of ​​the Bunsen accumulation stock solution that does not overlap with the image before dropping as the Bunsen accumulation area; overlap the associated accumulation stock solution with the image before dropping, and record the area of ​​the associated accumulation stock solution that does not overlap with the image before dropping as the associated accumulation area; establish a plane rectangular coordinate system, which is recorded as the accumulation analysis coordinate system, wherein the units of the X-axis and the Y-axis of the accumulation analysis coordinate system are both cm; For the Bunsen stacking stock solution: place the Bunsen stacking area in the stacking analysis coordinate system, and overlap the bottom of the Bunsen stacking area with the X-axis; record the contour of the Bunsen stacking area except the contour that overlaps with the X-axis as the Bunsen curve; mark the vertical coordinate of the highest point of the Bunsen curve as Y1, record the point with the largest slope in the Bunsen curve as the peak slope point, and record the ratio of the slope of the peak slope point to Y1 as the dripping stacking parameter of the Bunsen stacking stock solution; For the associated stacking stock solution: place the associated stacking area in the stacking analysis coordinate system, and coincide the bottom of the associated stacking area with the X-axis; the contour of the associated stacking area except the one coincident with the X-axis is recorded as the associated curve; the vertical coordinate of the highest point of the associated curve is marked as Y2, the point with the smallest slope in the associated curve is recorded as the valley slope point, and the ratio of the slope of the valley slope point to Y2 is recorded as the dripping stacking parameter of the associated stacking stock solution.

7. The method for detecting viscosity of cellulose stock solution according to claim 6, characterized in that: The viscosity of cellulose stock solution is tested based on the viscosity drop value and drop accumulation parameters, including: When the viscosity of the cellulose stock solution is tested, the cellulose stock solution being tested is recorded as the real-time stock solution; based on the cup viscometer method, the viscosity drop value corresponding to the real-time stock solution is obtained and recorded as the real-time drop value; When the real-time dripping value is only compared with one test stock solution SY b When the corresponding viscosity drop values ​​are the same, test the original solution SY b The viscosity of the real-time stock solution is recorded as the viscosity of the real-time stock solution, where b is a positive integer less than or equal to t and greater than or equal to 1; When the real-time dripping value is the same as the viscosity dripping value corresponding to only two test stock solutions SY, the test stock solutions SY with the same viscosity dripping value as the real-time dripping value are recorded as the test stock solutions SY. v With test solution SY x Based on the method for obtaining the droplet accumulation parameters of the Bunsen accumulation stock solution and the associated accumulation stock solution, two droplet accumulation parameters corresponding to the real-time stock solution are obtained and recorded as the Bunsen accumulation parameter and the associated accumulation parameter respectively; the test stock solution SY v And test solution SY x The dripping accumulation parameter that is the same as the Bensen accumulation parameter or the associated accumulation parameter is recorded as the real-time accumulation parameter; the viscosity ND of the test stock solution SY corresponding to the real-time accumulation parameter is recorded as the viscosity of the real-time stock solution, wherein v and x are both positive integers less than or equal to t and greater than or equal to 1; When the number of the test stock solutions SY having the same viscosity dripping value as the real-time dripping value is greater than 2, the viscosity of the real-time stock solution is retested and the real-time dripping value is obtained for analysis.

8. A system for detecting viscosity of cellulose stock solution, used for implementing a method for detecting viscosity of cellulose stock solution according to any one of claims 1 to 7, characterized in that: It includes a stock solution acquisition module, a dripping parameter acquisition module, a stacking parameter screening module and a viscosity detection module; The stock solution acquisition module is used to place the viscosity cup and the measuring cylinder in a constant temperature chamber based on the cup viscometer method, and obtain cellulose stock solutions of different viscosities; The dripping parameter acquisition module is used to put cellulose stock solutions of different viscosities into viscosity cups respectively, and use a camera to shoot the viscosity cup and the measuring cylinder; when the cellulose stock solution in the viscosity cup begins to flow out, the instantaneous dripping parameter and the normal dripping parameter of the cellulose stock solution of each viscosity are obtained based on the shooting results of the camera; The stacking parameter screening module is used to obtain the viscosity dripping value of cellulose of each viscosity by using the viscosity dripping algorithm based on the instantaneous dripping parameter and the conventional dripping parameter; All viscosity drop values ​​are analyzed, and drop accumulation analysis is performed on cellulose stock solutions with the same viscosity drop value and different viscosities to obtain drop accumulation parameters; The viscosity detection module is used to detect the viscosity of the cellulose stock solution based on the viscosity drip value and the drip accumulation parameter.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 7 are executed.

10. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 7 are executed.

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