An adaptive flour conveying system based on multi-source data fusion

Abstract

The present invention relates to the technical field of adaptive flour conveying, and more particularly to an adaptive flour conveying system based on multi-source data fusion. This system uses a speed adjustment unit to adjust the speed of a variable-frequency motor based on the pipeline pressure acquired by a pressure acquisition unit to control the conveying speed, thereby reducing pipeline pressure. Simultaneously, a statistical unit periodically counts the amount of flour delivered to a packaging machine at preset intervals. An analysis unit determines whether the flour delivery is qualified based on the delivery volume in the current period and the flour weight calculated by a flow meter. If the flour delivery is unqualified, a corresponding treatment method is generated based on the reason for the unqualified flour delivery. This system can adaptively adjust the flour delivery process based on multi-source data when the flour delivery is unqualified, thereby further improving flour conveying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of adaptive flour conveying, and in particular to an adaptive flour conveying system based on multi-source data fusion. Background Art

[0002] As a basic food ingredient, the efficient, precise, and stable conveying of flour is a core component of modern food processing. However, traditional flour conveying systems generally have significant pain points: First, the fluidity, moisture content, and density of flour are easily affected by ambient temperature and humidity, batch differences, and storage time, which can easily lead to pipeline blockage, unstable flow, or inaccurate proportions. Second, the performance of key equipment such as screw conveyors and pneumatic conveying systems directly affects conveying efficiency and reliability. Wear, aging, or instantaneous overload can easily cause malfunctions and downtime. Furthermore, traditional systems often rely on a single sensor, which provides incomplete data and delayed feedback. This makes it impossible to fully understand the material status in the pipeline and the health of the equipment in real time. Parameter adjustment relies on manual experience, resulting in slow response and low accuracy. Furthermore, fixed parameter operation makes it difficult to adapt to dynamic operating conditions, often leading to idling, overloading, or excessive grinding, resulting in energy waste and equipment loss.

[0003] Chinese patent application publication number: CN102464192A discloses a flour conveyor, which consists of a motor, a reducer, a body, a transmission shaft, spiral blades and a bearing support seat; the body is a cylindrical structure, arranged horizontally, with a feed port on the upper right side of the body and a discharge port on the left end of the body; the transmission shaft is arranged horizontally in the middle position inside the body, and the spiral blades are installed on the transmission shaft; bearing support seats are respectively installed in the middle and left sides of the body, and the left and right ends and the middle of the transmission shaft are respectively installed on the two bearing support seats and the right side wall of the body; the left end of the transmission shaft is connected to the output shaft of the reducer, and the input shaft of the reducer is connected to the rotating shaft of the motor.

[0004] It can be seen that the existing technology has the following problem: it cannot adaptively adjust abnormal situations during flour transportation based on multi-source data, thereby resulting in low flour transportation efficiency. Summary of the Invention

[0005] To this end, the present invention provides an adaptive flour conveying system based on multi-source data fusion, which is used to overcome the problem in the prior art that abnormal situations during flour conveying cannot be adaptively adjusted based on multi-source data, resulting in low flour conveying efficiency.

[0006] To achieve the above objectives, the present invention provides an adaptive flour conveying system based on multi-source data fusion, comprising: a silo outlet equipped with a humidity sensor connected to a screw conveyor, a flow meter installed between the screw conveyor and a pipe elbow, a pressure sensor and a vibration sensor installed between the pipe elbow and a vibrating screen, and a weighing sensor installed between a pneumatic conveying pipe connected to the vibrating screen and a packaging machine;

[0007] a pressure acquisition unit, configured to acquire the pipeline pressure using the pressure sensor;

[0008] a speed adjustment unit connected to the pressure acquisition unit and configured to adjust the speed of the variable frequency motor based on the pipeline pressure to control the conveying speed;

[0009] a statistical unit connected to the speed adjustment unit, configured to transmit according to the conveying speed and periodically count the amount of flour delivered to the packaging machine at a preset period;

[0010] an analysis unit connected to the statistical unit, configured to determine whether the flour delivery is qualified based on a delivery ratio of the delivery volume to the corresponding flour weight of the preset period, and to generate a corresponding treatment method based on the reason for the failure if the flour delivery is unqualified, wherein the flour weight is calculated based on the flour flow obtained by the flow meter, and the treatment method includes issuing a notification to verify the time node of multi-source data acquisition, adjusting the verification cycle of the flow meter, issuing a notification to clean the flow meter, adjusting the vibration frequency of the vibrating screen, adjusting the preset delivery ratio, issuing a notification to verify communication transmission, and adjusting the airflow velocity of the pneumatic conveying pipeline;

[0011] A control unit is connected to the analysis unit and is used to make adjustments based on the processing method.

[0012] Furthermore, the analysis unit is also used to determine whether the flour delivery is qualified based on the comparison result of the delivery ratio and the preset delivery ratio, and to issue a notification of the time node for verifying the acquisition of multi-source data, or to analyze the reason for the unqualified flour delivery based on the average value of the absolute value of the slope of the historical cycle-delivery ratio curve or based on the difference between the delivery ratio and the preset delivery ratio or based on the flour humidity obtained by the humidity sensor.

[0013] Furthermore, the analysis unit is also used to generate corresponding processing results based on the comparison results of the average value of the absolute value of the slope of the historical cycle-delivery ratio curve with the preset average value, including determining whether the flour delivery is qualified, or adjusting the verification period of the flow meter based on the difference between the average value and the preset average value.

[0014] Furthermore, the analysis unit is further configured to reduce the verification period of the flow meter based on a difference between the average value and the preset average value, and the difference is proportional to the reduction extent of the verification period.

[0015] Furthermore, the analysis unit is also used to generate a corresponding processing method based on the comparison result of the difference between the delivery ratio and the preset delivery ratio and the preset difference, including issuing a notification to clean the flow meter, or analyzing the reason for the unqualified flour delivery based on the inclination angle of the pipeline.

[0016] Furthermore, the analysis unit is also used to generate a corresponding processing method based on the comparison result of the inclination angle of the pipeline and the preset inclination angle, including analyzing the reason for unqualified flour transportation based on the flour moisture obtained by the humidity sensor, or adjusting the vibration frequency of the vibrating screen based on the difference between the preset inclination angle and the inclination angle.

[0017] Furthermore, the analysis unit is further configured to increase the vibration frequency of the vibrating screen based on a difference between the preset inclination angle and the inclination angle, and the difference is proportional to the increase in the vibration frequency.

[0018] Furthermore, the analysis unit is also used to generate a corresponding processing method based on the comparison result of the flour moisture obtained by the humidity sensor and the preset flour moisture, including adjusting the preset delivery ratio based on the ratio of the flour moisture to the preset flour moisture, or issuing a notification to verify the communication transmission.

[0019] Furthermore, the analysis unit is further configured to reduce the preset delivery ratio based on the ratio of the flour moisture to the preset flour moisture, and the ratio is proportional to the extent of reduction of the preset delivery ratio.

[0020] Furthermore, the analysis unit is further configured to increase the airflow velocity of the pneumatic conveying pipeline based on the preset conveying ratio, and the preset conveying ratio is inversely proportional to the increase in the airflow velocity.

[0021] Compared with the prior art, the beneficial effect of the present invention lies in that the speed of the variable frequency motor is adjusted based on the pipeline pressure obtained by the pressure acquisition unit by the speed adjustment unit to control the conveying speed, which can reduce the pipeline pressure; at the same time, the delivery volume of flour transmitted to the packaging machine is periodically counted by the statistical unit with a preset period as a node, and the analysis unit determines whether the flour delivery is qualified based on the delivery volume of the current period and the flour weight calculated by the flow meter, and generates a corresponding processing method based on the reason for unqualified when the flour delivery is unqualified. When the flour delivery is unqualified, the abnormal situation during flour delivery can be adaptively adjusted based on multi-source data, thereby further improving the flour delivery efficiency.

[0022] Furthermore, the present invention determines whether the flour transportation is qualified by comparing the transportation ratio with the preset transportation ratio, and can quickly determine whether the flour transportation is qualified, and then generate a corresponding processing method based on the reason for the unqualified condition when it is unqualified, thereby further improving the efficiency of flour transportation.

[0023] Furthermore, the present invention generates corresponding processing results by comparing the average value of the absolute value of the slope of the historical cycle-conveyance ratio curve with a preset average value, and can more accurately determine the cause of unqualified flour conveying based on historical conditions, thereby generating corresponding processing methods based on the cause of unqualified flour conveying when unqualified, thereby further improving the efficiency of flour conveying.

[0024] Furthermore, the present invention adjusts the verification period of the flow meter based on the difference between the preset average value and the average value, so that when the flow meter has a negative drift phenomenon, it can promptly check and adjust it, thereby more effectively checking whether the flow meter has an abnormality, and further improving the accuracy of multi-source data, thereby more effectively adaptively adjusting based on accurate data.

[0025] Furthermore, the present invention generates a corresponding processing method based on the comparison result of the difference between the delivery ratio and the preset delivery ratio and the preset difference, and can more accurately analyze the reason why the flour delivery is unqualified when the delivery ratio is slightly smaller than the preset delivery ratio, thereby generating a corresponding processing method based on the reason for the unqualified when it is unqualified, thereby further improving the efficiency of flour delivery.

[0026] Furthermore, the present invention generates a corresponding processing method based on the comparison result of the inclination angle of the pipeline and the preset inclination angle, and can determine whether the flour transportation is unqualified due to accumulation and blockage of flour during transportation due to the inclination angle of the pipeline being too small, thereby generating a corresponding processing method based on the accurate reason for the unqualified reason, thereby further improving the efficiency of flour transportation.

[0027] Furthermore, the present invention adjusts the vibration frequency of the vibrating screen based on the difference between the preset inclination angle and the inclination angle, thereby being able to more accurately adjust the vibration frequency of the vibrating screen based on the inclination angle, thereby further improving the efficiency of flour transportation.

[0028] Furthermore, the present invention generates a corresponding processing method based on the comparison result of the flour moisture obtained by the humidity sensor and the preset flour moisture, and can more accurately analyze the reasons for flour unqualified according to the flour moisture, thereby generating a corresponding processing method based on the accurate reasons for unqualified, thereby further improving the efficiency of flour transportation.

[0029] Furthermore, the present invention adjusts the preset conveying ratio based on the ratio of flour moisture to a preset flour moisture, and can more accurately adjust the preset conveying ratio when the flour moisture is high, thereby being able to more accurately determine whether the flour conveying is qualified, and generate a corresponding processing method based on the reason for unqualified when it is unqualified, thereby further improving the efficiency of flour conveying.

[0030] Furthermore, the present invention increases the air flow velocity of the pneumatic conveying pipeline based on a preset conveying ratio, and can more accurately adjust the air flow velocity when high-humidity flour forms loose agglomerates based on multi-source data, thereby preventing blockage during flour conveying and further improving the efficiency of flour conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of an adaptive flour conveying system based on multi-source data fusion according to an embodiment of the present invention;

[0032] Figure 2 This is a flowchart of the steps of an adaptive flour conveying method based on multi-source data fusion according to an embodiment of the present invention;

[0033] Figure 3 Flowchart of the steps for determining the result of comparing the delivery ratio with a pre-stored preset delivery ratio according to an embodiment of the present invention;

[0034] Figure 4 Flowchart of the steps for determining the difference between the delivery ratio and the preset delivery ratio and the preset difference according to an embodiment of the present invention;

[0035] Figure 5 This is a flowchart of the steps for determining the flour moisture obtained by the moisture sensor based on the comparison result with the preset flour moisture in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] See also Figure 1 As shown, it is a structural diagram of an adaptive flour conveying system based on multi-source data fusion according to an embodiment of the present invention.

[0040] The system comprises a pressure acquisition unit, a rotation speed adjustment unit, a statistical unit, an analysis unit and a control unit.

[0041] The main structure of the system is: the silo outlet with a humidity sensor is connected to the screw conveyor, a flow meter is installed between the screw conveyor and the pipe elbow, a pressure sensor and a vibration sensor are installed between the pipe elbow and the vibrating screen, and a weighing sensor is installed between the pneumatic conveying pipe connected to the vibrating screen and the packaging machine.

[0042] The pressure acquisition unit is used to acquire the pipeline pressure using the pressure sensor;

[0043] The speed adjustment unit is connected to the pressure acquisition unit and is used to adjust the speed of the variable frequency motor based on the pipeline pressure to control the conveying speed;

[0044] The statistical unit is connected to the speed adjustment unit, and is used for transmitting according to the conveying speed and periodically counting the amount of flour transmitted to the packaging machine at a preset period;

[0045] The analysis unit is connected to the statistical unit, and is used to determine whether the flour delivery is qualified based on the delivery ratio of the delivery volume and the corresponding flour weight of the preset period, and generate a corresponding processing method based on the reason for the failure if the flour delivery is unqualified, wherein the flour weight is calculated based on the flour flow obtained by the flow meter, and the processing method includes issuing a notification to verify the time node of multi-source data acquisition, adjusting the verification cycle of the flow meter, issuing a notification to clean the flow meter, adjusting the vibration frequency of the vibrating screen, adjusting the preset delivery ratio, issuing a notification to verify communication transmission, and adjusting the airflow speed of the pneumatic conveying pipeline;

[0046] The control unit is connected to the analysis unit and is configured to make adjustments based on the processing method.

[0047] Specifically, in this embodiment, the flour weight is directly measured by using a Coriolis mass flowmeter to measure the flour flow rate. The flowmeter outputs the instantaneous mass flow rate in real time at a high frequency, and the flour weight within the cycle is calculated using an integral formula.

[0048] Specifically, in this embodiment, a humidity sensor is installed at the outlet of the flour silo to monitor the humidity of the flour so as to adjust the subsequent equipment, and the outlet of the flour silo is connected to a screw conveyor to transport the flour after humidity monitoring to the pipe elbow, wherein a flow meter is installed at the horizontal straight pipe section between the screw conveyor and the pipe elbow to calculate the weight of flour within a cycle based on the mass flow output by the flow meter, the pipe elbow is connected to a vibrating screen, a pressure sensor is installed downstream of the elbow between the two positions, and a vibration sensor is installed at the pipe support to monitor the pressure and vibration frequency of the pipe so as to adaptively adjust the flour conveying parameters based on multi-source data, the vibrating screen is connected to the pneumatic conveying pipeline, and the pneumatic conveying pipeline is connected to the packaging machine, and a weighing sensor is installed at the bottom of the vertical pipe of the pneumatic conveying pipeline to measure the weight of the flour conveyed to the packaging machine, so as to determine whether the flour conveying is qualified based on the weight of the flour conveyed to the packaging machine, and to perform adaptive adjustments based on multi-source data when it is unqualified, thereby improving the flour conveying efficiency.

[0049] See also Figure 2 As shown, it is a flowchart of the steps of the adaptive flour conveying method based on multi-source data fusion according to an embodiment of the present invention.

[0050] The steps in the actual operation process of the system of the embodiment of the present invention include:

[0051] S1, obtaining the pipeline pressure by using the pressure sensor through the pressure obtaining unit;

[0052] S2, adjusting the speed of the variable frequency motor based on the pipeline pressure through a speed adjustment unit connected to the pressure acquisition unit to control the conveying speed;

[0053] S3, transmitting according to the conveying speed through a statistical unit connected to the speed adjustment unit, and periodically counting the amount of flour conveyed to the packaging machine at a preset period;

[0054] S4, determining whether the flour delivery is qualified based on the delivery ratio of the delivery volume to the corresponding flour weight of the preset period by an analysis unit connected to the statistical unit, and generating a corresponding treatment method based on the reason for the failure if the flour delivery is unqualified, wherein the flour weight is calculated based on the flour flow obtained by the flow meter, and the treatment method includes issuing a notification to verify the time node of multi-source data acquisition, adjusting the verification cycle of the flow meter, issuing a notification to clean the flow meter, adjusting the vibration frequency of the vibrating screen, adjusting the preset delivery ratio, issuing a notification to verify communication transmission, and adjusting the airflow velocity of the pneumatic conveying pipeline;

[0055] S5 , performing adjustment based on the processing method by a control unit connected to the analysis unit.

[0056] See also Figure 3 , which is a flowchart of the steps for determining the quality of flour delivery based on the comparison result of the delivery ratio with a pre-stored preset delivery ratio according to an embodiment of the present invention. The analysis unit of this embodiment of the present invention is further configured to determine whether flour delivery is qualified based on the comparison result of the delivery ratio with the preset delivery ratio, and to issue a notification to verify the time point of multi-source data acquisition, or to analyze the reason for unqualified flour delivery based on the average absolute value of the slope of the historical cycle-delivery ratio curve, the difference between the delivery ratio and the preset delivery ratio, or the flour moisture obtained by the moisture sensor.

[0057] Specifically, in this embodiment, the delivery ratio L0 can be divided into a first preset delivery ratio L1, a second preset delivery ratio L2, a third preset delivery ratio L3, and a fourth preset delivery ratio L4. In the set delivery ratio standard, the first preset delivery ratio L1=1.7, the second preset delivery ratio L2=1.1, the third preset delivery ratio L3=0.94, and the fourth preset delivery ratio L4=0.82. It should be noted that, in other embodiments, the values ​​of L1, L2, L3, and L4 can also be determined based on the demand for flour transportation; the comparison process based on the delivery ratio L and L1, L2, L3, and L4 is as follows:

[0058] If the delivery ratio L is greater than or equal to the first preset delivery ratio L1, it indicates that the time nodes of the multi-source data acquisition are not aligned, and the flour delivery is determined to be unqualified, and a notification is issued to verify the time nodes of the multi-source data acquisition;

[0059] If the delivery ratio L is less than the first preset delivery ratio L1 and greater than the second preset delivery ratio L2, it means that it is impossible to determine whether other factors cause this result. In this case, a historical cycle-delivery ratio curve is drawn, and the flour delivery is analyzed based on the average value P of the absolute value of the slope of the historical cycle-delivery ratio curve.

[0060] If the conveying ratio L is less than or equal to the second preset conveying ratio L2 and greater than or equal to the third preset conveying ratio L3, it is determined that the flour conveying is qualified;

[0061] If the delivery ratio L is less than the third preset delivery ratio L3 and greater than the fourth preset delivery ratio L4, it means that it is impossible to determine whether other factors cause this result. Then, the reason for the unqualified flour delivery is analyzed based on the difference Q between the delivery ratio and the preset delivery ratio;

[0062] If the conveying ratio L is less than or equal to the fourth preset conveying ratio L4, it is determined that the flour conveying is unqualified, and the reason for the unqualified flour conveying is analyzed based on the flour moisture R obtained by the moisture sensor.

[0063] Specifically, the analysis unit described in the embodiment of the present invention is also used to generate corresponding processing results based on the comparison result of the average value of the absolute value of the slope of the historical cycle-delivery ratio curve with the preset average value, including determining whether the flour delivery is qualified, or adjusting the verification period of the flow meter based on the difference between the average value and the preset average value.

[0064] Specifically, in this embodiment, the preset average value P0 of the absolute value of the slope of the historical cycle-delivery ratio curve is 0.7, and the comparison process based on the average value P and the preset average value P0 is as follows:

[0065] If the average value P is less than or equal to the preset average value P0, since flour may be lost during the transmission process, the actual transmission amount may be slightly larger than the preset flour weight, and the flour transmission is determined to be qualified;

[0066] If the average value P is greater than the preset average value P0, it means that the flow meter has experienced negative drift multiple times but has not been adjusted because the verification time node has not arrived. In this case, the verification cycle of the flow meter is adjusted based on the difference T between the average value and the preset average value.

[0067] Specifically, the analysis unit in the embodiment of the present invention is further configured to reduce the verification period of the flow meter based on the difference between the average value and the preset average value, and the difference is proportional to the reduction extent of the verification period.

[0068] Specifically, in this embodiment, the preset difference T0 between the average value and the preset average value is 0.2, and the comparison process based on the difference T and the preset difference T0 is as follows:

[0069] If the difference T is less than or equal to the preset difference T0, the verification period is adjusted to 0.9 times the original verification period;

[0070] If the difference T is greater than the preset difference T0, the verification period is adjusted to 0.6 times the original verification period.

[0071] See also Figure 4 , which is a flowchart of the steps for determining the difference between the delivery ratio and the preset delivery ratio based on the comparison result of the preset difference. The analysis unit in this embodiment of the present invention is further configured to generate a corresponding processing method based on the comparison result of the difference between the delivery ratio and the preset delivery ratio, including issuing a notice to clean the flow meter or analyzing the cause of unqualified flour delivery based on the inclination angle of the pipeline.

[0072] Specifically, in this embodiment, the preset difference Q0=0.05, and the comparison process based on the difference Q and the preset difference Q0 is as follows:

[0073] If the difference Q is greater than the preset difference Q0, it indicates that the mass flow rate is overestimated due to dust adhesion in the flow meter, and a notification to clean the flow meter is issued;

[0074] If the difference Q is less than or equal to the preset difference Q0, it indicates that the flour may be accumulated and blocked during transportation due to the small inclination angle of the pipeline. The reason for the unqualified flour transportation is analyzed based on the inclination angle U of the pipeline.

[0075] Specifically, the analysis unit described in the embodiment of the present invention is also used to generate a corresponding processing method based on the comparison result of the inclination angle of the pipeline and the preset inclination angle, including analyzing the reason for unqualified flour transportation based on the flour moisture obtained by the humidity sensor, or adjusting the vibration frequency of the vibrating screen based on the difference between the preset inclination angle and the inclination angle.

[0076] Specifically, in this embodiment, taking the vibration conveyor as an example, the preset inclination angle U0=9°, and the comparison process based on the inclination angle U and the preset inclination angle U is as follows:

[0077] If the tilt angle U is greater than the preset tilt angle U0, the reason for the unqualified flour delivery is analyzed based on the flour moisture R obtained by the moisture sensor;

[0078] If the inclination angle U is less than or equal to the preset inclination angle U0, the vibration frequency of the vibrating screen is adjusted based on the difference V between the preset inclination angle and the inclination angle.

[0079] Specifically, the analysis unit in the embodiment of the present invention is further configured to increase the vibration frequency of the vibrating screen based on the difference between the preset inclination angle and the inclination angle, and the difference is proportional to the increase in the vibration frequency.

[0080] Specifically, in this embodiment, the preset tilt angle and the preset difference V0 of the tilt angle are 2°, and the comparison process based on the difference V and the preset difference V0 is as follows:

[0081] If the difference V is less than or equal to the preset difference VO, the vibration frequency is adjusted to 1.2 times the original vibration frequency;

[0082] If the difference V is greater than the preset difference VO, the vibration frequency is adjusted to 1.5 times the original vibration frequency.

[0083] See also Figure 5, which is a flowchart of the steps for determining the flour moisture content based on the comparison result of the flour moisture obtained by the humidity sensor with the preset flour moisture content according to an embodiment of the present invention. The analysis unit of this embodiment of the present invention is further configured to generate a corresponding processing method based on the comparison result of the flour moisture obtained by the humidity sensor with the preset flour moisture content, including adjusting the preset transmission ratio based on the ratio of the flour moisture content to the preset flour moisture content, or issuing a notification to verify communication transmission.

[0084] Specifically, in this embodiment, taking general wheat flour as an example, the preset flour moisture R0=13%, and the comparison process based on the flour moisture R and the preset flour moisture R0 is as follows:

[0085] If the flour moisture R is greater than the preset flour moisture R0, it indicates that the actual flour moisture is high, that is, the flour density is low, but the weight of the delivered flour is less than the preset flour weight because the humidity sensor does not detect it, and the preset delivery ratio is adjusted based on the ratio W of the flour moisture to the preset flour moisture;

[0086] If the flour moisture R is less than or equal to the preset flour moisture R0, it means that low flow data is lost due to communication interruption during high-frequency sampling, resulting in a larger flow meter result, and a notification to verify communication transmission is issued.

[0087] Specifically, the analysis unit in the embodiment of the present invention is further configured to reduce the preset delivery ratio based on the ratio of the flour moisture to the preset flour moisture, and the ratio is proportional to the extent of the reduction in the preset delivery ratio.

[0088] Specifically, in this embodiment, the preset ratio W0 of the flour moisture to the preset flour moisture is 1.2, and the comparison process based on the ratio W of the flour moisture to the preset flour moisture and the preset ratio W0 is as follows:

[0089] If the ratio W is less than or equal to the preset ratio W0, the fourth preset delivery ratio is adjusted to 0.9 times the original fourth preset delivery ratio;

[0090] If the ratio W is greater than the preset ratio W0, the fourth preset delivery ratio is adjusted to 0.75 times the original fourth preset delivery ratio.

[0091] Specifically, the analysis unit in the embodiment of the present invention is further configured to increase the airflow velocity of the pneumatic conveying pipe based on the preset conveying ratio, and the preset conveying ratio is inversely proportional to the increase in the airflow velocity.

[0092] Specifically, in this embodiment, the preset delivery ratio M0=0.7, and the comparison process based on the delivery ratio M and the preset delivery ratio M0 is as follows:

[0093] If the delivery ratio M is less than or equal to the preset delivery ratio M0, it indicates that the high-humidity flour easily forms loose lumps, and thus the impact of accumulation at elbows or diameter changes is small, and the air flow velocity of the pneumatic conveying pipeline is adjusted to 1.9 times the original air flow velocity;

[0094] If the conveying ratio M is greater than the preset conveying ratio M0, it means that the high-humidity flour easily forms loose lumps, which causes a greater impact of accumulation at elbows or diameter changes. In this case, the air flow velocity of the pneumatic conveying pipeline is adjusted to 1.1 times the original air flow velocity.

[0095] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0096] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An adaptive flour conveying system based on multi-source data fusion, characterized in that: include: The silo outlet with the humidity sensor installed is connected to the screw conveyor, a flow meter is installed between the screw conveyor and the pipe elbow, a pressure sensor and a vibration sensor are installed between the pipe elbow and the vibrating screen, and a weighing sensor is installed between the pneumatic conveying pipe connected to the vibrating screen and the packaging machine; a pressure acquisition unit, configured to acquire the pipeline pressure using the pressure sensor; a speed adjustment unit connected to the pressure acquisition unit and configured to adjust the speed of the variable frequency motor based on the pipeline pressure to control the conveying speed; a statistical unit connected to the speed adjustment unit, configured to transmit according to the conveying speed and periodically count the amount of flour delivered to the packaging machine at a preset period; an analysis unit connected to the statistical unit, configured to determine whether the flour delivery is qualified based on a delivery ratio of the delivery volume to the corresponding flour weight of the preset period, and to generate a corresponding treatment method based on the reason for the failure if the flour delivery is unqualified, wherein the flour weight is calculated based on the flour flow obtained by the flow meter, and the treatment method includes issuing a notification to verify the time node of multi-source data acquisition, adjusting the verification cycle of the flow meter, issuing a notification to clean the flow meter, adjusting the vibration frequency of the vibrating screen, adjusting the preset delivery ratio, issuing a notification to verify communication transmission, and adjusting the airflow velocity of the pneumatic conveying pipeline; a control unit connected to the analysis unit and configured to make adjustments based on the processing method; The analysis unit is further configured to determine whether flour delivery is qualified based on a comparison result of the delivery ratio with a preset delivery ratio, and to issue a notification of a time node for verifying multi-source data acquisition, or to analyze a reason for unqualified flour delivery based on an average absolute value of a slope of a historical cycle-delivery ratio curve, or based on a difference between the delivery ratio and a preset delivery ratio, or based on the flour moisture obtained by the moisture sensor; The analysis unit is further configured to generate a corresponding processing result based on a comparison result of an average value of the absolute value of the slope of the historical cycle-delivery ratio curve with a preset average value, including determining that the flour delivery is qualified, or adjusting the verification period of the flow meter based on a difference between the average value and the preset average value; The analysis unit is further configured to reduce the verification period of the flow meter based on a difference between the average value and the preset average value, wherein the difference is proportional to the reduction of the verification period; The analysis unit is further configured to generate a corresponding processing method based on a comparison result of the difference between the delivery ratio and the preset delivery ratio and the preset difference, including issuing a notice to clean the flow meter, or analyzing the reason for the flour delivery failure based on the inclination angle of the pipeline; The analysis unit is also used to generate a corresponding processing method based on the comparison result of the inclination angle of the pipeline and the preset inclination angle, including analyzing the reason for unqualified flour transportation based on the flour moisture obtained by the humidity sensor, or adjusting the vibration frequency of the vibrating screen based on the difference between the preset inclination angle and the inclination angle.

2. The adaptive flour conveying system based on multi-source data fusion according to claim 1 is characterized in that: The analysis unit is further configured to increase the vibration frequency of the vibrating screen based on a difference between the preset inclination angle and the inclination angle, and the difference is proportional to an increase in the vibration frequency.

3. The adaptive flour conveying system based on multi-source data fusion according to claim 1 is characterized in that: The analysis unit is also used to generate a corresponding processing method based on the comparison result of the flour moisture obtained by the humidity sensor and the preset flour moisture, including adjusting the preset delivery ratio based on the ratio of the flour moisture to the preset flour moisture, or issuing a notification to verify the communication transmission.

4. The adaptive flour conveying system based on multi-source data fusion according to claim 3 is characterized in that: The analysis unit is further configured to reduce the preset delivery ratio based on a ratio of the flour moisture to the preset flour moisture, and the ratio is proportional to a reduction range of the preset delivery ratio.

5. The adaptive flour conveying system based on multi-source data fusion according to claim 4 is characterized in that: The analysis unit is further configured to increase the airflow velocity of the pneumatic conveying pipe based on the preset conveying ratio, and the preset conveying ratio is inversely proportional to the increase in the airflow velocity.

Images