Method and system for measuring and controlling bran starch content

Abstract

This invention provides a method and system for measuring and controlling the starch content of wheat bran. The method includes: acquiring starch content data of wheat bran to be tested; comparing the starch content data with a preset starch content range, and determining whether the starch content data meets preset adjustment conditions based on the comparison result; responding to meeting the preset adjustment conditions, determining at least one target milling equipment from multiple milling equipment based on the comparison result, and generating an adjustment signal for adjusting the operating parameters of the target milling equipment; and automatically adjusting the operating parameters of the target milling equipment based on the adjustment signal. The method for measuring and controlling the starch content of wheat bran according to this invention can automatically adjust the operating parameters of the corresponding milling equipment in a timely manner when abnormal changes occur in the starch content of wheat bran, improving the timeliness and stability of wheat bran starch content monitoring and milling equipment adjustment, thereby controlling the starch content of wheat bran within a reasonable range and improving the efficiency and stability during milling.

Description

Technical Field

[0001] This invention relates to the field of flour milling, and more specifically, to a method for measuring and controlling the content of bran starch, a system for measuring and controlling the content of bran starch, an electronic device for implementing the method, a computer-readable storage medium storing instructions for executing the method, and a computer program product for implementing the method. Background Technology

[0002] Grains typically consist of the outer layers, endosperm, and germ, with starch primarily found in the endosperm. During grain milling, processes such as grinding, scraping, and sieving separate the endosperm from the outer layers, and the separated endosperm is then processed into powdered products. Taking wheat milling as an example, bran is a major byproduct of wheat milling, and its yield and starch residue are closely related to wheat flour yield and effective flour utilization. Because the endosperm is difficult to completely separate from the outer layers, the bran produced during milling usually adheres to or carries a certain amount of starch-containing endosperm components. Therefore, the starch residue in the bran can, to some extent, reflect the degree of separation between the endosperm and the bran, as well as the operating status of the milling production line.

[0003] In actual production, the starch content in wheat bran may vary due to factors such as the quality of the raw grain, the production formula, process parameters, and the stability of equipment operation. Excessive starch content may cause usable flour to be discharged with the bran, resulting in flour loss and reducing wheat flour yield. Conversely, insufficient starch content may indicate over-grinding, excessive bran breakage, or overly vigorous threshing, which can negatively impact subsequent sieving processes and product quality. Therefore, controlling the starch content of wheat bran within a reasonable range that matches the type of raw grain and production conditions is crucial for improving milling efficiency and maintaining stable operation of the milling process. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide a method and system for measuring and controlling the starch content of bran, so as to control the starch content of bran within a reasonable range and improve the efficiency and stability during milling.

[0005] Therefore, according to a first aspect of the present invention, a method for measuring and controlling the starch content of bran is provided, wherein the method includes: acquiring starch content data of bran to be tested; comparing the starch content data with a preset starch content range, and determining whether the starch content data meets a preset adjustment condition based on the comparison result; in response to meeting the preset adjustment condition, determining at least one target milling device from a plurality of milling devices based on the comparison result, and generating an adjustment signal for adjusting the operating parameters of the target milling device; and automatically adjusting the operating parameters of the target milling device based on the adjustment signal.

[0006] Based on the above-described technical concept, the present invention may further include any one or more of the following optional forms.

[0007] In some alternative forms, obtaining the starch content data of the bran to be tested includes: obtaining the spectral information of the bran to be tested; and determining the starch content data based on the spectral information and a pre-configured starch content detection model.

[0008] In some alternative forms, the spectral information is near-infrared spectral information, and the starch content detection model is established based on the near-infrared spectral information of multiple bran samples obtained in advance and the corresponding starch content detection data.

[0009] In some alternative forms, the starch content detection model includes multiple detection models corresponding to different types of bran, wherein determining the starch content data based on the spectral information and the pre-configured starch content detection model includes: acquiring the type information of the bran to be detected; determining a target detection model from the multiple detection models based on the type information; and determining the starch content data based on the spectral information and the target detection model.

[0010] In some alternative forms, the preset adjustment conditions include the starch content data exceeding the preset starch content range for a preset time.

[0011] In some alternative forms, the comparison result includes the offset of the starch content data from the preset starch content range, the offset being the difference between the starch content data and the upper or lower limit of the preset starch content range, wherein the preset adjustment condition includes the offset reaching a first preset offset threshold or reaching a second preset offset threshold greater than the first preset offset threshold and continuing for the preset time.

[0012] In some alternative forms, the plurality of flour-making devices include a bran beater and a mill, wherein the operating parameters of the bran beater include the power supply frequency of the drive motor of the bran beater, and the operating parameters of the mill include the grinding roller pitch of the mill.

[0013] In some optional forms, the measurement and control method further includes: in response to satisfying the preset adjustment conditions, acquiring the operating status of the bran threshing machine and the milling machine, and determining whether the bran threshing machine and the milling machine are in an adjustable state based on the operating status; determining the target milling equipment based on the offset and the operating status of the bran threshing machine and the milling machine, and generating the adjustment signal for adjusting the operating parameters of the target milling equipment, wherein the adjustable state includes the state in which the operating parameters of the corresponding milling equipment have not reached the preset parameter limit corresponding to the comparison result.

[0014] In some optional forms, the measurement and control method further includes: in response to the offset reaching a first preset offset threshold and being less than a second preset offset threshold, and both the bran threshing machine and the milling machine being in the adjustable state, identifying the bran threshing machine as the target milling equipment, adjusting the operating parameters of the bran threshing machine, and performing a feedback judgment; in response to the judgment result of the feedback judgment being that the preset adjustment condition is met, and the bran threshing machine is not in the adjustable state while the milling machine is in the adjustable state, identifying the milling machine as the target milling equipment, and adjusting the operating parameters of the milling machine; or in response to the offset reaching the second preset offset threshold, and both the bran threshing machine and the milling machine being in the adjustable state, identifying both the bran threshing machine and the milling machine as the target milling equipment, and simultaneously adjusting the operating parameters of the bran threshing machine and the milling machine, wherein the feedback judgment includes acquiring starch content data of the bran produced after adjustment, and determining whether the preset adjustment condition is met based on the acquired starch content data.

[0015] In some optional forms, the measurement and control method further includes: performing the feedback judgment; stopping automatic adjustment in response to the judgment result of the feedback judgment being that the preset adjustment condition is not met; or determining whether the bran threshing machine and the milling machine are both in the adjustable state in response to the judgment result of the feedback judgment being that the preset adjustment condition is met; and stopping automatic adjustment and outputting alarm information in response to the fact that neither the bran threshing machine nor the milling machine is in the adjustable state.

[0016] According to a second aspect of the present invention, a system for measuring and controlling the starch content of bran is provided, wherein the system comprises: an acquisition device configured to acquire starch content data of bran to be tested; a plurality of parameter adjustment devices respectively configured to be correspondingly set to a plurality of milling equipment and to adjust the operating parameters of the corresponding milling equipment; and a control device communicatively connected to the acquisition device and the plurality of parameter adjustment devices, and configured to: compare the starch content data with a preset starch content range, and determine whether the starch content data meets a preset adjustment condition based on the comparison result; in response to meeting the preset adjustment condition, determine at least one target milling equipment from the plurality of milling equipment based on the comparison result, and generate an adjustment signal for adjusting the operating parameters of the target milling equipment; and send the adjustment signal to the parameter adjustment device corresponding to the target milling equipment, so that the parameter adjustment device automatically adjusts the operating parameters of the target milling equipment.

[0017] In some alternative forms, the plurality of flour-making devices include a bran beater and a mill, wherein the parameter adjustment device corresponding to the bran beater is configured to adjust the power supply frequency of the drive motor of the bran beater; and the parameter adjustment device corresponding to the mill is configured to adjust the grinding roller pitch of the mill.

[0018] In some alternative forms, the acquisition device includes a spectral detection unit and a data processing unit coupled to the spectral detection unit, wherein the spectral detection unit is disposed in a bran conveying pipe or a bran collecting pipe and configured to acquire near-infrared spectral information of the bran to be detected, and the data processing unit is configured to determine the starch content data based on the near-infrared spectral information and a pre-configured starch content detection model.

[0019] According to a third aspect of the present invention, an electronic device is provided, wherein the electronic device includes a memory, a processor, and instructions stored in the memory and executable by the processor, wherein the processor executes the instructions to implement the method for measuring and controlling the bran starch content according to a first aspect of the present invention.

[0020] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium has computer-executable instructions stored thereon for performing the method for measuring and controlling the bran starch content according to a first aspect of the present invention.

[0021] According to a fifth aspect of the present invention, a computer program product is provided, comprising computer-executable instructions, wherein the computer-executable instructions, when executed by at least one processor, implement the method for measuring and controlling the bran starch content according to a first aspect of the present invention.

[0022] According to the method for measuring and controlling the starch content of bran of the present invention, by comparing the bran starch content data with a preset starch content range and determining the target milling equipment that needs to be adjusted based on the comparison results, the operating parameters of the corresponding milling equipment can be automatically adjusted in a timely manner when the bran starch content changes abnormally. This improves the timeliness and stability of bran starch content monitoring and milling equipment adjustment, thereby controlling the bran starch content within a reasonable range and improving the efficiency and stability during milling. Attached Figure Description

[0023] Other features and advantages of the invention will be better understood through the following detailed description of optional embodiments in conjunction with the accompanying drawings, wherein: Figure 1 A schematic flowchart of a method for measuring and controlling the starch content of bran according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of a grinding mill according to an embodiment of the present invention is shown, wherein a mill gap adjustment mechanism is shown; Figure 3 It shows Figure 2 A schematic diagram of a grinding mill from another perspective; Figure 4 It shows Figure 1 A schematic flowchart of the sub-steps of step S10 in the process; Figure 5 It shows Figure 4 A schematic flowchart of the sub-sub-steps of sub-step S120 in the process; Figure 6 It shows Figure 1 A schematic flowchart of the sub-steps of step S30 in the process; Figure 7 A schematic flowchart of a method for measuring and controlling the starch content of bran according to another embodiment of the present invention is shown; Figure 8 A schematic diagram of a bran starch content measurement and control system according to an embodiment of the present invention is shown; and Figure 9 A schematic diagram of an electronic device according to one embodiment of the present invention is shown. Detailed Implementation

[0024] The implementation and use of the embodiments are discussed in detail below. While the exemplary methods and systems described below include software and / or firmware executed on hardware among other components, it should be noted that these examples are merely illustrative and should not be considered limiting. Therefore, although exemplary methods and systems have been described below, those skilled in the art will readily understand that the specific embodiments discussed are merely exemplary of particular ways of implementing and using the invention, and not intended to limit the scope of the invention.

[0025] Furthermore, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of methods and systems according to various embodiments of the present invention. It should be noted that the functions indicated in the blocks may occur in a different order than that shown in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0026] In this document, the expressions "including" or similar synonyms such as "having" are open-ended and do not exclude additional unlisted elements, steps, or components. In this document, "multiple" means two or more, unless otherwise explicitly specified. In this document, terms such as "first," "second," and similar expressions are used for descriptive purposes only and are not used to determine the order of events, unless otherwise stated. Those skilled in the art will understand the specific meaning of the above terms in this document according to the specific circumstances.

[0027] Currently, flour processing enterprises typically assess the operational status of their milling production lines based on overall flour yield, bran yield, and bran type testing results. For bran starch content, manual sampling and offline testing are usually required. However, due to factors such as sampling time, sample transportation, and testing time, the results obtained using these methods are somewhat discontinuous and delayed, making it difficult to continuously reflect changes in bran starch content during the production process.

[0028] Furthermore, there is often a lack of timely and direct feedback between the test results of bran starch content and the adjustment of the operating parameters of the milling equipment. When abnormal changes occur in bran starch content, operators often need to combine test results, equipment operating status, and production experience to determine which milling equipment and its operating parameters need adjustment. This relies heavily on the operator's experience and may result in untimely adjustments, inaccurate adjustments, or inappropriate adjustment ranges. Therefore, it is difficult to achieve continuous monitoring of bran starch content and timely and stable adjustment of the milling equipment based on the monitoring results.

[0029] In view of this, refer to Figure 1 This invention provides a method for measuring and controlling the starch content of wheat bran, which can, for example, be achieved by... Figure 8 The system shown is used to measure and control the bran starch content. This system 100 can be implemented using software and / or hardware, and generally includes an acquisition device 110, a parameter adjustment device 120, and a control device 130. The following describes the process in conjunction with... Figure 8 Detailed description of the measurement and control system shown Figure 1 The measurement and control method of the embodiment shown generally includes steps S10 to S40.

[0030] Step S10: Obtain the starch content data of the bran to be tested.

[0031] The bran to be tested can be bran generated during the operation of the flour milling production line and transported along the corresponding conveying path. In step S10, the starch content data of the bran to be tested is acquired by the acquisition device 110. The bran to be tested can be coarse bran, fine bran, or other types of bran generated in the flour milling production line. Here, coarse bran refers to bran with a particle size ≥1000μm, and fine bran refers to bran with a particle size <1000μm.

[0032] Starch content data is used to represent the starch content in wheat bran, and can be expressed as the percentage of starch mass to wheat bran mass. Starch content data can be a single value at a given time of testing, multiple consecutive values ​​obtained over a testing period, the average of multiple values, or a smoothed value, etc., and is not limited here.

[0033] Step S20: Compare the starch content data with the preset starch content range, and determine whether the starch content data meets the preset adjustment conditions based on the comparison results.

[0034] In step S20, the control device 130, which is communicatively connected to the acquisition device 110, compares the starch content data with a preset starch content range and determines whether the starch content data meets the preset adjustment conditions based on the comparison result. In this embodiment, the control device 130 and the acquisition device 110 can be directly or indirectly communicatively connected to receive starch content data from the acquisition device 110. Here, a direct communication connection means that the acquisition device 110 directly sends the obtained starch content data to the control device 130, while an indirect communication connection means that the acquisition device 110 sends the starch content data to an intermediate communication device (e.g., a programmable logic controller, a communication gateway, or a host computer), and then the intermediate communication device sends the starch content data to the control device 130.

[0035] Here, the preset starch content range can be determined in advance based on at least one of the following: bran type, raw grain type, production formula, product requirements, and historical operating data of the milling production line. Different types of bran can correspond to different preset starch content ranges. For example, in a wheat milling production line, coarse bran and fine bran can each correspond to their own preset starch content ranges; for instance, the preset starch content range corresponding to coarse bran can be 7% to 9%, and the preset starch content range corresponding to fine bran can be 10% to 12%.

[0036] The comparison results can include whether the starch content data is within a preset starch content range, exceeds the upper limit of the preset starch content range, or is below the lower limit of the preset starch content range. The comparison results can also include the offset of the starch content data exceeding the preset starch content range. When the starch content data is higher than the upper limit, the offset can be the difference between the starch content data and the upper limit; when the starch content data is lower than the lower limit, the offset can be the difference between the lower limit and the starch content data.

[0037] In some implementations, the preset adjustment condition can be that the starch content data exceeds a preset starch content range, such as exceeding the preset starch content range by 1%. Furthermore, the duration for which the starch content data exceeds the preset starch content range reaches a preset time, such as a preset time of 1 to 3 minutes. It should be understood that the preset time is not limited to this and can be determined based on the starch content data collection cycle, the material conveying speed of the flour milling production line, and its operational stability.

[0038] Step S30: In response to the satisfaction of preset adjustment conditions, at least one target pulverizing device is determined from multiple pulverizing devices based on the comparison results, and an adjustment signal is generated for adjusting the operating parameters of the target pulverizing device.

[0039] If the determination result in step S20 is "Y", meaning the preset adjustment conditions are met, the control device 130 determines at least one target milling equipment from multiple milling equipment based on the comparison result. The multiple milling equipment can be equipment in the milling production line related to the formation of the bran to be tested. For example, the multiple milling equipment may include bran mills and grinding mills, such as a downstream bran mill (a grinding mill located downstream of the bran milling system and used to further remove residual endosperm from the bran). The target milling equipment refers to the milling equipment whose operating parameters need to be adjusted based on the current comparison result.

[0040] The control device 130 can pre-store the correspondence between the comparison results and the pulverizing equipment to determine the target pulverizing equipment based on the comparison results. The specific determination method will be described below.

[0041] The adjustment signal may include the equipment identifier of the target pulverizing equipment and the parameter identifier of the operating parameter to be adjusted. The adjustment signal may also include the adjustment direction (e.g., increasing or decreasing the parameter), adjustment amount, target parameter value, adjustment step size, adjustment duration, etc. When the target pulverizing equipment includes multiple pulverizing devices, the control device 130 can generate adjustment signals corresponding to each target pulverizing device separately, or it can generate combined adjustment signals that include multiple target pulverizing devices and their operating parameters, which is not limited here.

[0042] If the result of step S20 is "N", which means that the preset adjustment conditions are not met, return to step S10 and continue to monitor the starch content data of the bran to be tested.

[0043] Step S40: Automatically adjust the operating parameters of at least one target pulverizing device based on the adjustment signal.

[0044] In step S40, the control device 130 can send the adjustment signal to the parameter adjustment device 120 corresponding to the target pulverizing equipment, and the parameter adjustment device 120 can automatically adjust the corresponding operating parameters of the target pulverizing equipment according to the adjustment signal.

[0045] For example, the parameter adjustment device corresponding to the bran threshing machine can automatically adjust the power supply frequency of the drive motor of the bran threshing machine. The parameter adjustment device corresponding to the milling mill can automatically adjust the grinding roller gap of the milling mill.

[0046] Specifically, when the bran starch content is higher than the upper limit of the preset starch content range, the corresponding operating parameters can be adjusted to enhance the bran-beating and / or grinding action. For example, the power supply frequency of the bran beater can be increased, and the grinding roller distance of the mill can be decreased. When the bran starch content is lower than the lower limit of the preset starch content range, the corresponding operating parameters can be adjusted to weaken the bran-beating and / or grinding action. For example, the power supply frequency of the bran beater can be decreased, and the grinding roller distance of the mill can be increased. In a specific example, the bran beater can be equipped with a variable frequency speed control unit, such as a frequency converter connected to the drive motor of the bran beater. The variable frequency speed control unit can adjust the power supply frequency of the drive motor of the bran beater, thereby adjusting the rotor speed of the bran beater. The mill can be equipped with a roller distance adjustment mechanism 13 ( Figure 2 and Figure 3 As shown in the diagram, the roller gap adjustment mechanism can change the position of the corresponding grinding roll in response to an adjustment signal, thereby adjusting the roller gap. (See reference...) Figure 2 and Figure 3 The grinding mill 10 may include two pairs of grinding rollers arranged opposite each other (each pair of grinding rollers includes a slow roller 11 and a fast roller 12) and a gap adjustment mechanism 13 respectively arranged corresponding to the two pairs of grinding rollers. The gap adjustment mechanism 13 may be connected to at least one of the slow roller 11 and the fast roller 12, and adjusts the gap between the two grinding rollers in the corresponding pair of grinding rollers by changing the position of at least one grinding roller. Specifically, the gap adjustment mechanism 13 may include a drive element (e.g., a servo motor) and a transmission assembly (e.g., a lead screw and nut assembly). The drive element may respond to the adjustment signal sent by the control device and drive the corresponding grinding roller to move through the transmission assembly, thereby increasing or decreasing the corresponding grinding roller gap. The specific adjustment amount of each operating parameter can be determined according to the offset of starch content data, the current operating status of the grinding equipment, and the preset adjustment step size. For example, the power supply frequency adjustment step of the bran mill can be in the range of 3Hz / time to 5Hz / time, and the grinding roller gap of the mill can be adjusted step by step according to the gap adjustment scale. The gap adjustment scale records the correspondence between each scale and the grinding roller gap or the change in gap. Each adjustment is made by one scale, and the time interval between two adjacent adjustments can be in the range of 3min to 5min.

[0047] After completing one adjustment of operating parameters, the control device can again acquire the starch content data of the bran through the acquisition device, and determine whether to stop the adjustment, continue the adjustment, switch the target milling equipment, or output alarm information based on the acquired starch content data, thus forming a closed-loop adjustment process with the bran starch content data as the feedback quantity.

[0048] In this way, by comparing the bran starch content data with the preset starch content range and determining the target milling equipment that needs to be adjusted based on the comparison results, the operating parameters of the corresponding milling equipment can be automatically adjusted in a timely manner when abnormal changes occur in the bran starch content. This reduces the reliance on manual detection and manual experience-based adjustments, improves the timeliness and stability of bran starch content monitoring and milling equipment adjustment, thereby controlling the bran starch content within a reasonable range and improving the efficiency and stability during milling.

[0049] Reference Figure 4 In some embodiments, step S10, which involves obtaining starch content data of the bran to be tested, may include sub-steps S110 to S120.

[0050] Sub-step S110: Obtain the spectral information of the bran to be detected.

[0051] In sub-step S110, the spectral information of the bran can be obtained by emitting detection light to the bran to be detected through the spectral detection unit 111 included in the acquisition device 110, and receiving the detection light formed by reflection, diffuse reflection, or transmission of the bran. The spectral information may include the reflectance, absorbance, or spectral intensity of the bran at multiple wavelength positions. The spectral information may be the raw spectral information directly output by the spectral detection unit 111, or it may be the spectral information obtained after preprocessing the raw spectral information (e.g., smoothing and noise reduction processing, normalization processing, or scattering correction processing).

[0052] The spectral detection unit 111 can be installed in the bran conveying pipe or bran collecting pipe to collect spectral information during the conveying of bran along the corresponding pipe. In some embodiments, the spectral detection unit can be installed at a location where the bran flows continuously and stably to ensure that the collected spectral information is representative and to reduce the impact of random fluctuations. For example, the spectral detection unit 111 can be installed at the discharge channel or outlet of the bran mill to ensure that there is sufficient and uniform bran flow in the detection area, thereby improving the stability and representativeness of the detection results. Alternatively, when the amount of bran in the discharge channel or outlet of the bran mill is small or the flow stability is insufficient, an intermediate silo or buffer hopper can be set between the discharge end of the bran mill and the spectral detection unit 111 to temporarily store, buffer, and homogenize the bran, making the bran flow rate entering the detection area more stable. In other embodiments, when two or more bran mills are provided, the discharge channels of each bran mill can be combined and a mixing structure, such as a mixing agitator, can be set up to ensure that the bran from different bran mills is thoroughly and uniformly mixed before entering the testing area, thereby reducing the impact of differences between different devices on the test results. In this case, the spectral detection unit 111 can be set on the bran conveying path after mixing and stirring to perform spectral acquisition when the bran is in a uniform state, thereby improving the accuracy and consistency of starch content detection.

[0053] Step S120: Determine starch content data based on spectral information and a pre-configured starch content detection model.

[0054] Here, the pre-configured starch content detection model refers to a detection model that is pre-established and stored before acquiring the starch content data of the bran to be tested. The starch content detection model can be stored in the data processing unit 112 coupled to the spectral detection unit 111. The data processing unit 112 can input the acquired spectral information into the starch content detection model to obtain the starch content data of the bran to be tested, and send the starch content data to the control device 130.

[0055] In some embodiments, the spectral information can be near-infrared spectral information. Accordingly, the spectral detection unit 111 can be a near-infrared spectral sensor. The near-infrared spectral sensor can emit near-infrared detection light towards the bran to be detected and receive the near-infrared detection light reflected or diffusely reflected by the bran to be detected, thereby obtaining the near-infrared spectral information of the bran to be detected in the near-infrared band (e.g., in the range of 800 nm to 1650 nm). The near-infrared spectral information includes the spectral response related to the chemical bond vibrations in starch molecules. By analyzing the absorption or reflection characteristics at different wavelength positions, a correspondence between the near-infrared spectral information and the starch content can be established. Using a near-infrared spectral sensor can rapidly obtain detection data without damaging the bran to be detected and without the use of chemical reagents, making it suitable for continuous detection of bran during the transportation process.

[0056] A starch content detection model can be established based on pre-acquired near-infrared spectral information of multiple bran samples and the corresponding starch content data. Specifically, multiple bran samples with different starch contents can be selected, and near-infrared spectral information of each bran sample can be acquired using a near-infrared spectral sensor. The starch content of each bran sample can then be detected using a laboratory starch content detection method to obtain corresponding reference starch content data. This laboratory starch content detection method can include, but is not limited to, enzymatic hydrolysis or acid hydrolysis, which uses enzymes or acids to hydrolyze starch into reducing sugars, measures the reducing sugar content in the hydrolysate, and then obtains the corresponding starch content data based on the measurement results.

[0057] In this way, the near-infrared spectral information of each bran sample can be correlated with the corresponding starch content data to form model sample data. Regression analysis can then be performed on the model sample data to determine the correspondence between near-infrared spectral information and starch content, thereby establishing a starch content detection model. For example, partial least squares regression, multiple linear regression, or other modeling methods can be used to establish the starch content detection model.

[0058] Advantageously, the starch content detection model can include multiple detection models corresponding to different types of bran. Different types of bran can include coarse bran and fine bran. Each detection model can be established based on near-infrared spectral information of multiple bran samples belonging to the corresponding type and corresponding reference starch content data. Different types of bran may have different particle sizes, surface morphologies, and layer conditions, which may cause varying degrees of scattering of the near-infrared detection light. Therefore, establishing separate detection models for different types of bran allows each model to match the spectral characteristics of the corresponding type of bran, reducing the impact of bran type differences on the starch content detection results.

[0059] Specifically, refer to Figure 5 The sub-step S120, which determines starch content data based on near-infrared spectral information and a starch content detection model, may include sub-sub-steps S121 to S123.

[0060] Sub-step S121: Obtain the type information of the bran to be detected.

[0061] Type information is used to indicate the type of bran to be detected. Type information may include a coarse bran identifier, a fine bran identifier, or a particle size identifier indicating the particle size range to which the bran to be detected belongs. In some examples, different types of bran are transported along different conveying paths. A pre-established correspondence between the conveying path, the spectral detection unit 111, and the bran type can be established, and the type information of the bran to be detected can be determined based on the device identifier of the spectral detection unit 111 or the path identifier of the conveying path containing the bran to be detected. In other examples, the same conveying path is used to transport different types of bran, and the type information can be obtained based on the current production configuration information or a pre-entered bran type identifier.

[0062] Sub-step S122: Based on type information, determine the target detection model from multiple detection models.

[0063] Specifically, a correspondence between different types of bran and multiple detection models can be established in advance. The data processing unit 112 can query the correspondence based on the type information of the bran to be detected, and determine the detection model corresponding to that type information as the target detection model.

[0064] Sub-step S123: Determine starch content data based on spectral information (e.g., near-infrared spectral information) and target detection model.

[0065] Specifically, the data processing unit 112 can input the near-infrared spectral information of the bran to be detected into the target detection model, which processes the near-infrared spectral information and outputs the starch content data of the bran to be detected. The data processing unit 112 can send the starch content data to the control device 130, so that the control device 130 compares the starch content data with a preset starch content range corresponding to the type of bran to be detected.

[0066] As mentioned above, the comparison result of step S20 may include the offset of starch content data exceeding a preset starch content range. Correspondingly, the preset adjustment conditions may include the offset reaching a first preset offset threshold or reaching a second preset offset threshold greater than the first preset offset threshold and remaining therefor a preset time. The first and second preset offset thresholds can be preset based on bran type, milling process, the adjustment capability of the milling equipment, and the allowable degree of starch content fluctuation. For example, the first preset offset threshold may be in the range of 0.8% to 1.2%, such as 0.9%, 1%, 1.1%, etc., and the second preset offset threshold may be in the range of 1.3% to 1.7%, such as 1.4%, 1.5%, 1.6%, etc.

[0067] Reference Figure 6 In some implementations, step S30 may include sub-steps S310 to S320.

[0068] Sub-step S310: In response to the starch content data meeting the preset adjustment conditions, obtain the operating status of the bran threshing machine and the milling machine, and determine whether the bran threshing machine and the milling machine are in an adjustable state based on the obtained operating status.

[0069] Here, the operating status may include the start-up and stop status of the flour milling equipment, fault status, communication status, current operating parameters, and corresponding preset parameter limits. The control device 130 can obtain this operating status from the respective equipment controllers of the bran mill and the flour mill, the drive mechanism, or the programmable logic controller of the flour milling production line.

[0070] An adjustable state refers to a situation where the operating parameters of the corresponding flour milling equipment have not reached the preset parameter limits corresponding to the comparison results. In other words, the operating parameters of the corresponding flour milling equipment to be adjusted have not reached the preset parameter limits corresponding to the required adjustment method. For example, if it is necessary to enhance the bran-pulverizing effect and the power supply frequency of the bran-pulverizer has not yet reached the preset frequency upper limit (e.g., 60Hz), the bran-pulverizer can be determined to be in an adjustable state. If the flour milling equipment is in a faulty state, or if all its operating parameters have reached the preset parameter limits, then the flour milling equipment is determined to be in an adjustable state.

[0071] Step S320: Based on the offset and the judgment results of whether the bran thresher and mill are in an adjustable state, at least one target milling device is identified, and an adjustment signal is generated for adjusting the operating parameters of the target milling device.

[0072] Specifically, when the offset reaches a first preset offset threshold but is less than a second preset offset threshold, and both the bran threshing machine and the milling machine are in an adjustable state, the control device 130 first identifies the bran threshing machine as the target milling equipment and generates an adjustment signal for adjusting the operating parameters of the bran threshing machine. Subsequently, the adjustment process is performed based on the adjustment signal. After adjusting the bran threshing machine, a feedback judgment step can be executed, i.e., acquiring the starch content data of the bran produced after adjustment, and determining whether the preset adjustment conditions are met based on the acquired starch content data. If the feedback judgment result indicates that the preset adjustment conditions are still met, and the bran threshing machine is still in an adjustable state, the adjustment of the operating parameters of the bran threshing machine and the subsequent feedback judgment are performed cyclically. If the feedback judgment result indicates that the preset adjustment conditions are still met, the bran threshing machine has reached the preset parameter limit and cannot be further adjusted, and the milling machine is in an adjustable state, the control device 130 identifies the milling machine as the target milling equipment and generates an adjustment signal for adjusting the operating parameters of the milling machine, thereby adjusting the parameters of the milling machine based on this adjustment signal. Alternatively, when the offset reaches a first preset offset threshold and only one of the bran thresher and mill is in an adjustable state, the control device 130 can identify the milling equipment in the adjustable state as the target milling equipment and adjust the operating parameters of the target milling equipment.

[0073] When the offset reaches a second preset offset threshold, and both the bran mill and the grinding mill are in an adjustable state, the control device 130 identifies both the bran mill and the grinding mill as target milling equipment and generates adjustment signals for adjusting the operating parameters of each, thereby simultaneously adjusting the parameters of both equipment. Similarly, when the offset reaches the second preset offset threshold, and only one of the bran mill and the grinding mill is in an adjustable state, the control device 130 identifies the adjustable milling equipment as the target milling equipment and adjusts its operating parameters.

[0074] When both the bran threshing machine and the milling machine are not adjustable, the control device 130 does not generate an adjustment signal for the undetermined target milling equipment, stops automatic adjustment, and outputs an alarm message.

[0075] Thus, when the offset reaches the first preset offset threshold but is less than the second preset offset threshold, the bran mill is first identified as the target milling equipment. The starch content can be corrected primarily through the bran mill, reducing operational fluctuations caused by simultaneously changing the operating parameters of multiple milling equipment when the offset is small. When the offset reaches the second preset offset threshold, adjusting both the bran mill and the grinding mill simultaneously can shorten the time required for the starch content data to recover to the preset starch content range.

[0076] Reference Figure 7 In some embodiments, after performing step S40, the measurement and control method may further include steps S50 to S61 or steps S50 to S63.

[0077] Step S50: Perform feedback judgment.

[0078] In step S50, the starch content data of the bran produced after adjustment can be obtained after the operating parameters of the target milling equipment reach the parameter value indicated by the adjustment signal and a preset stabilization time has elapsed. The preset stabilization time can be determined based on the execution time of the parameter adjustment device, the time required for the bran to be transported from the target milling equipment to the detection position, and the time required for the milling conditions to reach stability, so as to avoid detecting bran produced before adjustment as bran after adjustment.

[0079] Subsequently, the obtained starch content data is compared with the preset starch content range to determine whether the obtained starch content data still meets the preset adjustment conditions.

[0080] In step S50, if the judgment result of the feedback judgment is that the preset adjustment condition is no longer met, that is, the judgment result of step S50 is "N", then step S61 is executed; if the judgment result of the feedback judgment is that the preset adjustment condition is still met, that is, the judgment result of step S50 is "Y", then step S62 is executed.

[0081] Step S61: In response to the feedback judgment result that the preset adjustment conditions are no longer met, stop automatic adjustment.

[0082] In step S61, the control device 130 no longer generates new operating parameter adjustment signals, and the corresponding pulverizing equipment can continue to operate with the current operating parameters.

[0083] Step S62: In response to the judgment result of the feedback judgment being that the preset adjustment conditions are still met, determine whether both the bran thresher and the mill are not in an adjustable state.

[0084] In step S62, if at least one of the bran threshing machine and the milling machine is in an adjustable state, i.e., the determination result of step S62 is "N", then return to step S30, redetermine the target milling equipment according to the current offset and operating status, and continue to adjust; if neither the bran threshing machine nor the milling machine is in an adjustable state, i.e., the determination result of step S62 is "Y", then execute step S63.

[0085] Step S63: In response to the feedback judgment result that the preset adjustment conditions are still met, and both the bran thresher and the mill are not in an adjustable state, stop the automatic adjustment and output an alarm message.

[0086] Alarm information may include bran type, current starch content data, preset starch content range, offset, executed adjustment operations, and current operating parameters of the bran mill and grinding mill. Alarm information can be output through the milling production line's display interface, audible alarm devices, visual alarm devices, host computer, or remote monitoring terminal to prompt operators to check the raw grain status, material flow rate, and milling equipment operating status, and to take appropriate actions based on the inspection results, such as replacing the raw grain batch. Additionally, the control device 130 or the operator can control the milling production line to stop or halt the operation of related milling equipment to prevent continuous operation under abnormal conditions.

[0087] Thus, by performing feedback judgment after adjustment, the adjustment effect can be verified based on the starch content data of the bran produced after adjustment. Stopping automatic adjustment when the starch content data no longer meets the preset adjustment conditions avoids unnecessary repeated or excessive adjustments to the milling equipment. Stopping automatic adjustment and outputting an alarm message when the starch content data still meets the preset adjustment conditions but both the bran thresher and the mill are not adjustable prevents the issuance of adjustment signals that cannot be executed or may cause operating parameters to exceed limits, and promptly prompts operators to check and handle the situation, thereby improving the stability, reliability, and safety of the measurement and control process.

[0088] As mentioned above, the present invention also provides, for example... Figure 8 The bran starch content measurement and control system shown can be applied to the measurement and control method described in the above embodiments. The features and principles of the above measurement and control method can be applied to the implementation of the measurement and control system, and will not be elaborated further here.

[0089] Reference Figure 9 , Figure 9 This is a schematic diagram of an electronic device according to one embodiment of the present invention.

[0090] The present invention also provides an electronic device, such as Figure 9As shown, the electronic device may include a memory 210 and a processor 220. The memory 210 may store instructions 211, which may be executed by the processor 220. When the processor 220 executes the instructions 211, it implements the method for measuring and controlling the bran starch content according to the above embodiment.

[0091] The electronic device in this embodiment can be a laptop computer, a desktop computer, or a cloud server, etc. It is understood that the components included in the electronic device are not limited to the memory 210 and the processor 220, and can vary depending on different needs. Exemplarily, the electronic device may also include multiple components connected to its input / output interface (…). Figure 9 (Not shown in the image), including but not limited to: input units, such as keyboards and mice; output units, such as displays and speakers; storage units, such as semiconductor storage devices, magnetic surface storage devices, and optical storage devices; and communication units, such as network interface cards (NICs) and wireless transceivers. The communication unit allows the electronic device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0092] In some implementations, memory 210 may include, for example, random access memory (RAM) or read-only memory (ROM). Memory 210 may be used to store instructions, programs, code, and other programs and data required by the electronic device, but is not limited thereto. Additionally, processor 220 may be a central processing unit (CPU) or other general-purpose processors, such as digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic arrays (PLAs), etc.

[0093] In an exemplary embodiment of the present invention, a computer-readable storage medium is also provided, which carries computer-readable program instructions for executing various embodiments of the present application. The computer-readable storage medium may be a tangible device capable of holding and storing instructions used by an instruction execution device. The computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital versatile optical disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combinations thereof. The computer-readable storage medium used herein is not to be interpreted as a transient signal itself, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0094] The present invention also proposes a computer program product tangibly stored on a computer-readable storage medium and comprising computer-executable instructions that, when executed by at least one processor, implement the method for measuring and controlling the bran starch content according to the above embodiments.

[0095] Generally, various embodiments of the present invention can be implemented in hardware, dedicated circuitry, software programs, firmware, logic circuitry, or any combination thereof, as needed. Specifically, some aspects may be implemented in hardware, while others may be implemented in firmware or software programs executable by a controller, microprocessor, or other computing device. When aspects of embodiments of the present invention are illustrated or described as block diagrams, flowcharts, or using some other graphical representation, it will be understood that the blocks, apparatuses, systems, techniques, or methods described herein can be implemented as non-limiting examples in hardware, software, firmware, dedicated circuitry, logic circuitry, general-purpose hardware, or controllers or other computing devices, or some combination thereof.

[0096] Computer-readable program instructions or computer program products for executing various embodiments of the present invention can also be stored in the cloud. When needed, users can access the computer-readable program instructions stored in the cloud for executing an embodiment of the present invention via mobile internet, fixed network or other networks, thereby implementing various embodiments of the present invention.

[0097] It should be understood that the embodiments shown in the figure only illustrate optional configurations of the bran starch content measurement and control system according to the present invention; however, they are merely illustrative and not limiting. Other configurations may be adopted without departing from the spirit and scope of the present invention.

[0098] The technical content and features of the present invention have been disclosed above. However, it is understood that those skilled in the art can make various changes and improvements to the disclosed concepts under the inventive concept of the present invention, all of which fall within the protection scope of the present invention. The description of the above embodiments is illustrative rather than restrictive, and the protection scope of the present invention is determined by the claims.

Claims

1. A method for measuring and controlling the starch content of wheat bran, characterized in that, The measurement and control method includes: Obtain the starch content data of the bran to be tested (S10). The starch content data is compared with a preset starch content range, and the starch content data is determined to meet the preset adjustment conditions based on the comparison results (S20). In response to the satisfaction of the preset adjustment conditions, at least one target pulverizing device is determined from multiple pulverizing devices based on the comparison results, and an adjustment signal for adjusting the operating parameters of the target pulverizing device is generated (S30). The operating parameters of the target pulverizing equipment are automatically adjusted based on the adjustment signal (S40).

2. The measurement and control method according to claim 1, characterized in that, Obtaining the starch content data of the bran to be tested includes: Obtain the spectral information of the bran to be detected (S110). Based on the spectral information and the pre-configured starch content detection model, the starch content data is determined (S120).

3. The measurement and control method according to claim 2, characterized in that, The spectral information is near-infrared spectral information, and the starch content detection model is established based on the near-infrared spectral information of multiple bran samples obtained in advance and the corresponding starch content detection data.

4. The measurement and control method according to claim 2, characterized in that, The starch content detection model includes multiple detection models corresponding to different types of bran. The determination of the starch content data based on the spectral information and the pre-configured starch content detection model includes: Obtain the type information of the bran to be detected (S121). Based on the type information, a target detection model is determined from the plurality of detection models (S122). Based on the spectral information and the target detection model, the starch content data is determined (S123).

5. The measurement and control method according to claim 1, characterized in that, The preset adjustment conditions include the starch content data exceeding the preset starch content range for a preset time.

6. The measurement and control method according to claim 5, characterized in that, The comparison result includes the offset of the starch content data from the preset starch content range, where the offset is the difference between the starch content data and the upper or lower limit of the preset starch content range. The preset adjustment conditions include the offset reaching a first preset offset threshold or reaching a second preset offset threshold greater than the first preset offset threshold and continuing for the preset time.

7. The measurement and control method according to claim 6, characterized in that, The plurality of flour-making equipment includes a bran beater and a milling mill, wherein the operating parameters of the bran beater include the power supply frequency of the drive motor of the bran beater, and the operating parameters of the milling mill include the grinding roller pitch of the milling mill.

8. The measurement and control method according to claim 7, characterized in that, The measurement and control method also includes: In response to the satisfaction of the preset adjustment conditions, the operating status of the bran threshing machine and the milling machine is obtained, and based on the operating status, it is determined whether the bran threshing machine and the milling machine are in an adjustable state (S310). Based on the offset and the operating status of the bran thresher and the mill, at least one target milling device is determined, and an adjustment signal is generated for adjusting the operating parameters of the target milling device (S320). The adjustable state includes the state in which the operating parameters of the corresponding powder-making equipment do not reach the preset parameter limit value corresponding to the comparison result.

9. The measurement and control method according to claim 8, characterized in that, The measurement and control method also includes: In response to the offset reaching the first preset offset threshold and being less than the second preset offset threshold, and both the bran threshing machine and the milling machine being in the adjustable state, the bran threshing machine is identified as the target milling equipment, the operating parameters of the bran threshing machine are adjusted, and a feedback judgment is performed. If the feedback judgment result is that the preset adjustment condition is met, and the bran threshing machine is not in the adjustable state while the milling machine is in the adjustable state, then the milling machine is identified as the target milling equipment, and the operating parameters of the milling machine are adjusted; or In response to the offset reaching the second preset offset threshold, and both the bran threshing machine and the milling machine being in the adjustable state, both the bran threshing machine and the milling machine are designated as the target milling equipment, and their operating parameters are adjusted simultaneously. The feedback judgment includes acquiring starch content data of the bran produced after adjustment, and determining whether the preset adjustment conditions are met based on the acquired starch content data.

10. The measurement and control method according to claim 9, characterized in that, The measurement and control method also includes: Execute the feedback judgment (S50); In response to the feedback judgment result being that the preset adjustment condition is not met, automatic adjustment is stopped (S61); or In response to the feedback judgment result being that the preset adjustment condition is met, it is determined whether the bran threshing machine and the milling machine are not in the adjustable state (S62). In response to the fact that neither the bran threshing machine nor the milling machine is in the adjustable state, the automatic adjustment is stopped and an alarm message is output (S63).

11. A system for measuring and controlling the starch content of wheat bran, characterized in that, The measurement and control system (100) includes: Acquisition device (110), the acquisition device (110) is configured to acquire starch content data of bran to be tested; Multiple parameter adjustment devices (120) are respectively configured to adjust the operating parameters of the corresponding powder-making equipment; and A control device (130) is communicatively connected to the acquisition device (110) and the plurality of parameter adjustment devices (120), and is configured to: The starch content data is compared with a preset starch content range, and based on the comparison results, it is determined whether the starch content data meets the preset adjustment conditions. In response to the satisfaction of the preset adjustment conditions, at least one target milling device is determined from the plurality of milling devices based on the comparison results, and an adjustment signal for adjusting the operating parameters of the target milling device is generated; and The adjustment signal is sent to the parameter adjustment device (120) corresponding to the target pulverizing equipment, so that the corresponding parameter adjustment device automatically adjusts the operating parameters of the target pulverizing equipment.

12. The measurement and control system according to claim 11, characterized in that, The plurality of flour-making devices include a bran beater and a milling mill, wherein the parameter adjustment device (120) corresponding to the bran beater is configured to adjust the power supply frequency of the drive motor of the bran beater; and the parameter adjustment device (120) corresponding to the milling mill is configured to adjust the grinding roller pitch of the milling mill.

13. The measurement and control system according to claim 11, characterized in that, The acquisition device (110) includes a spectral detection unit (111) and a data processing unit (112) coupled to the spectral detection unit (111). The spectral detection unit (111) is located in the bran conveying pipe or bran collecting pipe and is configured to collect the near-infrared spectral information of the bran to be detected. The data processing unit (112) is configured to determine the starch content data based on the near-infrared spectral information and a pre-configured starch content detection model.

14. An electronic device, characterized in that, The electronic device (200) includes a memory (210), a processor (220), and instructions (211) stored in the memory (210) and executable by the processor (220), wherein the processor (220) implements the method for measuring and controlling the bran starch content according to any one of claims 1 to 10 when executing the instructions (211).

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium has computer-executable instructions stored thereon for performing the method for measuring and controlling the bran starch content according to any one of claims 1 to 10.

16. A computer program product comprising computer-executable instructions, characterized in that, When the computer-executable instructions are executed by at least one processor, the method for measuring and controlling the bran starch content according to any one of claims 1 to 10 is implemented.

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