Spiral conveyor intelligent control system based on frequency conversion speed regulation technology

Abstract

The invention discloses a spiral conveyor intelligent control system based on a variable frequency speed regulation technology, which comprises a data information acquisition module, a conveying analysis calculation module and an intelligent control module, and is characterized in that the data information acquisition module is suitable for performing related data acquisition in the process that a spiral conveyor conveys materials to a loading vehicle; the conveying analysis and calculation module is used for analyzing the loading position and the loading opening of the loading vehicle and calculating the optimal material conveying flow speed and flow, and the intelligent control module is used for intelligently controlling the spiral conveyor according to the information of the loading vehicle and the analysis and judgment result of the conveying analysis and calculation module. The data information acquisition module is electrically connected with the conveying analysis and calculation module, and the conveying analysis and calculation module is electrically connected with the intelligent control module.

Description

Technical Field

[0001] The invention relates to the technical field of industrial automation control, and in particular to an intelligent control system for a screw conveyor based on variable frequency speed regulation technology. Background Art

[0002] In the traditional screw conveyor material conveying process, it is usually dependent on manual operation or a simple automatic control system to control the operation of the conveyor. However, this method has many shortcomings. First, manual operation is difficult to ensure the accuracy and stability of material transportation, especially when conveying materials to the loading vehicle. Due to the different heights and sizes of the loading ports of different loading vehicles, it is difficult to achieve accurate control of the material conveying flow rate and flow rate through manual operation. Secondly, simple automatic control systems can usually only operate according to preset parameters, and cannot be intelligently adjusted according to the real-time position of the loading vehicle and the size and height of the loading port, resulting in low material transportation efficiency, and may even cause material overflow or insufficient loading.

[0003] With the continuous development of variable frequency speed regulation technology, its application in screw conveyor control has gradually increased. However, most of the existing screw conveyor control systems based on variable frequency speed regulation technology can only achieve simple speed regulation, and cannot achieve the function of intelligent control according to the real-time position of the loading vehicle and the size of the loading port. Therefore, it is particularly important to design a screw conveyor control system that can perform intelligent control according to the loading vehicle information and material characteristics. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent control system for a screw conveyor based on variable frequency speed regulation technology to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent control system for a screw conveyor based on variable frequency speed regulation technology, comprising a data information acquisition module, a conveying analysis and calculation module and an intelligent control module. The data information acquisition module is suitable for collecting relevant data during the process of the screw conveyor conveying materials to a loading vehicle. The conveying analysis and calculation module is used to analyze the loading position and loading port of the loading vehicle and calculate the optimal material conveying flow rate and flow rate. The intelligent control module is used to intelligently control the screw conveyor according to the loading vehicle information and the analysis and judgment results of the conveying analysis and calculation module. The data information acquisition module is electrically connected to the conveying analysis and calculation module, and the conveying analysis and calculation module is electrically connected to the intelligent control module.

[0006] According to the above technical solution, the data information acquisition module includes a loading vehicle data scanning module, a position calibration module and a material information acquisition module. The loading vehicle data scanning module is used to perform image and position scanning on the loading vehicle to collect the image and position data of the loading vehicle. The position calibration module is electrically connected to the loading vehicle data scanning module. The position calibration module is used to calibrate the position of the loading vehicle according to the image and position data scanned and collected by the loading vehicle data scanning module. The material information acquisition module is used to collect material information transported by the screw conveyor.

[0007] According to the above technical solution, the conveying analysis and calculation module includes a data receiving module, a flow rate analysis module and a flow rate analysis module. The data receiving module is used to receive data information during the process of the screw conveyor conveying materials to the loading vehicle. The flow rate analysis module is used to analyze the target position of the material feeding to the loading vehicle and the position of the discharge port of the screw conveyor and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor. The flow rate analysis module is used to analyze the loading port size of the loading vehicle and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor.

[0008] According to the above technical solution, the intelligent control module includes a conveying speed control module and an input quantity control module. The conveying speed control module is used to control the rotation speed of the screw shaft of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated, and the input quantity control module is used to control the material input quantity at the feed end of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated.

[0009] According to the above technical solution, the flow rate analysis module further includes a coordinate system establishment submodule and a speed calculation submodule, the coordinate system establishment submodule is used to establish a coordinate system according to the calibrated loading vehicle position, and analyze the functional relationship corresponding to the parabola trajectory of the material after it is sent out from the screw conveyor on the coordinate system, and the speed calculation submodule is used to calculate the initial velocity of the material sent out from the screw conveyor according to the functional relationship of the parabola on the coordinate system;

[0010] The flow analysis module further includes an area division submodule and a parabola fitting submodule. The area division submodule is used to divide the loading port area of ​​the loading vehicle into a nine-square grid, and the parabola fitting submodule is used to fit the parabolic trajectory of the material from the discharge end to the material falling into the loading port.

[0011] According to the above technical solution, the operation method of the screw conveyor intelligent control system includes:

[0012] Step S1: The loading vehicle stops at the loading area on one side of the screw conveyor, and the loading vehicle data scanning module at the loading vehicle end of the screw conveyor is started to scan the image and position information of the currently parked loading vehicle;

[0013] Step S2: calibrating the spatial position of the loading vehicle according to the scanned image and position information of the loading vehicle;

[0014] Step S3: collecting material information conveyed by the screw conveyor through the material information collection module;

[0015] Step S4: Obtain the relevant information collected in steps S1-S3 through the data receiving module and upload it to the transportation analysis and calculation module;

[0016] Step S5: The conveying analysis and calculation module analyzes and calculates the optimal flow rate and optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information, and transmits the real-time analysis and calculation results to the intelligent control module via electrical signals;

[0017] Step S6: Finally, the intelligent control module is used to intelligently control the rotation speed of the screw shaft of the screw conveyor and the material input amount at the feed end.

[0018] According to the above technical solution, in step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0019] Step S51: obtain calibration data for the spatial position of the loading vehicle, lock the center position point G of the plane where the loading port of the loading vehicle is located, take the discharge port of the screw conveyor as the origin O, the straight line passing through the origin O and perpendicular to the ground as the Y axis, determine the plane A with the Y axis and the point G outside the Y axis, and on the plane A, take the straight line passing through the origin O and perpendicular to the Y axis as the X axis, take point O as the origin of the coordinate system, the X axis as the horizontal axis, and the Y axis as the vertical axis to establish a plane rectangular coordinate system, then the coordinates of point O are (0,0), the coordinates of point G are (x G ,y G );

[0020] Step S52: after determining the specific category of the material based on the collected material information, match the preset coefficient k of the current material category in the big database;

[0021] Step S53: Substitute k into the parabolic trajectory function relationship y=-ax of the material delivered by the screw conveyor 2 Among them And a>0, then the parabolic trajectory function expression of the current material after being sent out from the screw conveyor is Where v is the flow rate of the material in the conveying cylinder of the screw conveyor;

[0022] Step S54: Since the parabola trajectory passes through point G(x G ,y G ), then the optimal flow rate v0 satisfies Right now The output v0 of the flow rate analysis module is the optimal flow rate of the material in the conveying cylinder of the screw conveyor, so that the material can be delivered from the discharge port in a The parabolic trajectory is sent, where k is a constant greater than 0 and v0>0.

[0023] According to the above technical solution, in step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0024] Step S5a: obtaining calibration data for the spatial position of the loading vehicle, locking the plane of the loading port area of ​​the loading vehicle and the size of the plane of the area;

[0025] Step S5b: Divide the plane of the loading port area into nine small areas in a "nine-square grid" form in equal proportions through the area division submodule, and obtain the side length c and side width d of the small area, where c≥d;

[0026] Step S5c: Fitting the material from the discharge port point O(0,0) to the center position point G(x G ,y G ) of the material parabolic trajectory and generate a fitting curve S;

[0027] Step S5d: For the function The derivative is By formula Calculate the length of the fitting curve S, and then use the formula Calculate the cross-sectional diameter of the material in the conveying cylinder of the screw conveyor, where L S is the length of the curve fitted by the parabolic trajectory of the material, d is the side width length of a grid after the plane of the loading port area is divided into nine grids, σ is the diffusion coefficient of the current material category with the delivery distance, and P0 is the cross-sectional diameter of the material in the conveying cylinder of the screw conveyor.

[0028] According to the above technical solution, in step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0029] Step S5e: Compare the diameter P of the screw conveyor cylinder b , through the formula Calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor, and the flow analysis module outputs the analysis and calculation results of Q0.

[0030] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a data information acquisition module, a conveying analysis and calculation module and an intelligent control module, can collect information of the loading vehicle and materials in real time and analyze and calculate the optimal material conveying flow rate and flow, thereby realizing intelligent control of the screw conveyor; the initial velocity obtained when the material leaves the screw conveyor will also change relatively, forming different delivery trajectories, and the delivery trajectory is calculated so that the material can be accurately dropped on the target point when it is delivered from the discharge port, thereby achieving the purpose of controlling and adjusting the height and position of the discharge end, being easy to use and enhancing the general performance, while retaining the delivery deviation redundancy, delivering the material to the target loading vehicle with the maximum material conveying flow rate, achieving the effects of strong adaptability and high efficiency and precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0032] In the attached picture:

[0033] Figure 1 It is a schematic diagram of the system module composition of the present invention;

[0034] Figure 2 It is a schematic diagram of the material delivery principle of the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-2The present invention provides a technical solution: an intelligent control system for a screw conveyor based on variable frequency speed regulation technology, comprising a data information acquisition module, a conveying analysis and calculation module and an intelligent control module. The data information acquisition module is suitable for collecting relevant data during the process of the screw conveyor conveying materials to the loading vehicle. The conveying analysis and calculation module is used to analyze the loading position and loading port of the loading vehicle and calculate the optimal material conveying flow rate and flow rate. The intelligent control module is used to intelligently control the screw conveyor according to the loading vehicle information and the analysis and judgment results of the conveying analysis and calculation module. The data information acquisition module is electrically connected to the conveying analysis and calculation module, and the conveying analysis and calculation module is electrically connected to the intelligent control module. ; By setting up a data information acquisition module, a conveying analysis and calculation module and an intelligent control module, the information of the loading vehicle and materials can be collected in real time, and the optimal material conveying flow rate and flow rate can be analyzed and calculated, so as to realize intelligent control of the screw conveyor; the initial velocity obtained when the material leaves the screw conveyor will also change relatively, forming different delivery trajectories, and the delivery trajectory is calculated so that the material can be accurately dropped to the target point when it is delivered from the discharge port, thereby achieving the purpose of controlling and adjusting the height and position of the discharge end. It is easy to use and enhances general performance. At the same time, it retains the redundancy of delivery deviation, and delivers to the target loading vehicle with the maximum material conveying flow rate, achieving a strong adaptability and efficient and accurate effect.

[0037] The data information acquisition module includes a loader data scanning module, a position calibration module and a material information acquisition module. The loader data scanning module is used to perform image and position scanning on the loader to collect the image and position data of the loader. The position calibration module is electrically connected to the loader data scanning module. The position calibration module is used to calibrate the position of the loader according to the image and position data scanned and collected by the loader data scanning module. The material information acquisition module is used to collect material information transported by the screw conveyor.

[0038] The conveying analysis and calculation module includes a data receiving module, a flow rate analysis module and a flow rate analysis module. The data receiving module is used to receive data information during the process of the screw conveyor conveying materials to the loading vehicle. The flow rate analysis module is used to analyze the target position of the material feeding to the loading vehicle and the position of the screw conveyor discharge port and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor. The flow rate analysis module is used to analyze the loading port size of the loading vehicle and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor.

[0039] The intelligent control module includes a conveying speed control module and an input quantity control module. The conveying speed control module is used to control the rotation speed of the screw shaft of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated, and the input quantity control module is used to control the material input quantity at the feed end of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated.

[0040] The flow rate analysis module further includes a coordinate system establishment submodule and a speed calculation submodule. The coordinate system establishment submodule is used to establish a coordinate system according to the calibrated loading vehicle position and analyze the functional relationship of the parabola trajectory of the material after it is sent out from the screw conveyor on the coordinate system. The speed calculation submodule is used to calculate the initial velocity of the material sent out from the screw conveyor according to the functional relationship of the parabola on the coordinate system.

[0041] The flow analysis module further includes an area division submodule and a parabola fitting submodule. The area division submodule is used to divide the loading port area of ​​the loading vehicle into a nine-square grid, and the parabola fitting submodule is used to fit the parabolic trajectory of the material from the discharge end to the material falling into the loading port.

[0042] The operation method of the screw conveyor intelligent control system includes:

[0043] Step S1: The loading vehicle stops at the loading area on one side of the screw conveyor, and the loading vehicle data scanning module at the loading vehicle end of the screw conveyor is started to scan the image and position information of the currently parked loading vehicle;

[0044] Step S2: calibrating the spatial position of the loading vehicle according to the scanned image and position information of the loading vehicle;

[0045] Step S3: collecting material information conveyed by the screw conveyor through the material information collection module;

[0046] Step S4: Obtain the relevant information collected in steps S1-S3 through the data receiving module and upload it to the transportation analysis and calculation module;

[0047] Step S5: The conveying analysis and calculation module analyzes and calculates the optimal flow rate and optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information, and transmits the real-time analysis and calculation results to the intelligent control module via electrical signals;

[0048] Step S6: Finally, the intelligent control module is used to intelligently control the rotation speed of the screw shaft of the screw conveyor and the material input amount at the feed end; when the speed of the screw shaft increases, the driving force of the spiral blade on the material will also increase accordingly, thereby accelerating the material conveying speed. Therefore, when the material is about to leave the screw conveyor, that is, when it reaches the end of the screw shaft, by controlling the speed of the screw conveyor, the initial velocity of the material will also change relatively, forming different delivery trajectories, and calculating the delivery trajectory, so that the material can be accurately delivered to the target point when it is delivered from the discharge port, thereby achieving the control and adjustment of the height and position of the discharge end, which is easy to use and enhances general performance.

[0049] In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0050] Step S51: obtain calibration data for the spatial position of the loading vehicle, lock the center position point G of the plane where the loading port of the loading vehicle is located, take the discharge port of the screw conveyor as the origin O, the straight line passing through the origin O and perpendicular to the ground as the Y axis, determine the plane A with the Y axis and the point G outside the Y axis, and on the plane A, take the straight line passing through the origin O and perpendicular to the Y axis as the X axis, take point O as the origin of the coordinate system, the X axis as the horizontal axis, and the Y axis as the vertical axis to establish a plane rectangular coordinate system, then the coordinates of point O are (0,0), the coordinates of point G are (x G ,y G );

[0051] Step S52: after determining the specific category of the material based on the collected material information, the preset coefficient k of the current material category is matched in the big database, wherein the preset coefficient k is related to the physical properties of the material such as particle size, density, friction coefficient, etc., and affects the initial velocity of the material when it is separated;

[0052] Step S53: Substitute k into the parabolic trajectory function relationship y=-ax of the material delivered by the screw conveyor 2 Among them And a>0, then the parabolic trajectory function expression of the current material after being sent out from the screw conveyor is Where v is the flow rate of the material in the conveying cylinder of the screw conveyor. It can be seen from the above functional relationship that the opening size of the parabola is related to the material flow rate. When the material type remains unchanged, that is, k remains unchanged, the larger the flow rate v, the smaller a, and the larger the parabola opening, the farther the material is delivered. Conversely, the smaller the flow rate, the closer the material is delivered. At the same time, it is also related to the physical properties of different material types. If the material flow rate remains unchanged, but the physical property coefficient k of the material changes, the impact on the initial velocity of the material leaving the screw conveyor is different, resulting in different parabolic trajectories of the material when it is delivered from the discharge port.

[0053] Step S54: Since the parabola trajectory passes through point G(x G ,y G ), then the optimal flow rate v0 satisfies Right now The output v0 of the flow rate analysis module is the optimal flow rate of the material in the conveying cylinder of the screw conveyor, so that the material can be delivered from the discharge port in a The parabolic trajectory is sent, where k is a constant greater than 0 and v0>0.

[0054] In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0055] Step S5a: obtaining calibration data for the spatial position of the loading vehicle, locking the plane of the loading port area of ​​the loading vehicle and the size of the plane of the area;

[0056] Step S5b: Divide the plane of the loading port area into nine small areas in a "nine-square grid" form in equal proportions through the area division submodule, and obtain the side length c and side width d of the small area, where c≥d;

[0057] Step S5c: Fitting the material from the discharge port point O(0,0) to the center position point G(x G ,y G ) of the material parabolic trajectory and generate a fitting curve S;

[0058] Step S5d: For the function The derivative is By formula Calculate the length of the fitting curve S, and then use the formula Calculate the cross-sectional diameter of the material in the conveying cylinder of the screw conveyor, where L S is the length of the curve fitted by the parabolic trajectory of the material, d is the side width length of a grid after the plane of the loading port area is divided into nine grids, σ is the diffusion coefficient of the current material category with the delivery distance, and P0 is the cross-sectional diameter value of the material in the conveying cylinder of the screw conveyor; through the above formula, the optimal flow rate of the material and its corresponding parabolic trajectory calculated by the flow rate analysis module can be used to calculate the length of the parabolic trajectory of the material from the discharge port to the loading port, and then the plane of the loading port area is further divided into "nine grids" in equal proportions to determine the width of the side length of a "grid" area. Finally, the cross-sectional diameter of the material in the conveying cylinder is analyzed and calculated, so that under the material flow rate corresponding to the cross-sectional diameter, the material is delivered from the discharge port, and the material naturally deviates and diffuses under the trajectory length. When it falls into the center position point G of the loading port, the diameter length formed by the material flow is equal to the width of the divided area, thereby ensuring that the material can be accurately delivered to the center position of the loading port of different types of loading vehicles, and can also be delivered to the target loading vehicle at the maximum material delivery flow rate under the premise of retaining the delivery deviation redundancy, achieving the effect of strong adaptability and high efficiency and precision.

[0059] In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes:

[0060] Step S5e: Compare the diameter P of the screw conveyor cylinder b, through the formula Calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor, and the flow analysis module outputs the analysis and calculation results of Q0.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent control system for a screw conveyor based on variable frequency speed regulation technology, comprising a data information acquisition module, a conveying analysis and calculation module and an intelligent control module, characterized in that: The data information acquisition module is suitable for collecting relevant data during the process of the screw conveyor conveying materials to the loading vehicle. The conveying analysis and calculation module is used to analyze the loading position and loading port of the loading vehicle and calculate the optimal material conveying flow rate and flow. The intelligent control module is used to intelligently control the screw conveyor according to the loading vehicle information and the analysis and judgment results of the conveying analysis and calculation module. The data information acquisition module is electrically connected to the conveying analysis and calculation module, and the conveying analysis and calculation module is electrically connected to the intelligent control module.

2. According to claim 1, the intelligent control system for screw conveyor based on variable frequency speed regulation technology is characterized in that: The data information acquisition module includes a loading vehicle data scanning module, a position calibration module and a material information acquisition module. The loading vehicle data scanning module is used to perform image and position scanning on the loading vehicle to collect the image and position data of the loading vehicle. The position calibration module is electrically connected to the loading vehicle data scanning module. The position calibration module is used to calibrate the position of the loading vehicle according to the image and position data scanned and collected by the loading vehicle data scanning module. The material information acquisition module is used to collect material information transported by the screw conveyor.

3. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 1 is characterized in that: The conveying analysis and calculation module includes a data receiving module, a flow rate analysis module and a flow rate analysis module. The data receiving module is used to receive data information during the process of the screw conveyor conveying materials to the loading vehicle. The flow rate analysis module is used to analyze the target position of the material feeding to the loading vehicle and the position of the screw conveyor discharge port and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor. The flow rate analysis module is used to analyze the size of the loading port of the loading vehicle and calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor.

4. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 1 is characterized in that: The intelligent control module includes a conveying speed control module and an input quantity control module. The conveying speed control module is used to control the rotation speed of the screw shaft of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated, and the input quantity control module is used to control the material input quantity at the feed end of the screw conveyor according to the optimal material conveying flow rate analyzed and calculated.

5. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 3 is characterized in that: The flow rate analysis module further includes a coordinate system establishment submodule and a speed calculation submodule, wherein the coordinate system establishment submodule is used to establish a coordinate system according to the calibrated loading vehicle position and analyze the functional relationship of the parabola trajectory of the material after it is sent out from the screw conveyor on the coordinate system, and the speed calculation submodule is used to calculate the initial velocity of the material sent out from the screw conveyor according to the functional relationship of the parabola on the coordinate system; The flow analysis module further includes an area division submodule and a parabola fitting submodule. The area division submodule is used to divide the loading port area of ​​the loading vehicle into a nine-square grid, and the parabola fitting submodule is used to fit the parabolic trajectory of the material from the discharge end to the material falling into the loading port.

6. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology as described in any one of claims 1 to 5 is characterized in that: The operation method of the screw conveyor intelligent control system includes: Step S1: The loading vehicle stops at the loading area on one side of the screw conveyor, and the loading vehicle data scanning module at the loading vehicle end of the screw conveyor is started to scan the image and position information of the currently parked loading vehicle; Step S2: calibrating the spatial position of the loading vehicle according to the scanned image and position information of the loading vehicle; Step S3: collecting material information conveyed by the screw conveyor through the material information collection module; Step S4: Obtain the relevant information collected in steps S1-S3 through the data receiving module and upload it to the transportation analysis and calculation module; Step S5: The conveying analysis and calculation module analyzes and calculates the optimal flow rate and optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information, and transmits the real-time analysis and calculation results to the intelligent control module via electrical signals; Step S6: Finally, the intelligent control module is used to intelligently control the rotation speed of the screw shaft of the screw conveyor and the material input amount at the feed end.

7. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 6 is characterized in that: In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes: Step S51: obtain calibration data for the spatial position of the loading vehicle, lock the center position point G of the plane where the loading port of the loading vehicle is located, take the discharge port of the screw conveyor as the origin O, the straight line passing through the origin O and perpendicular to the ground as the Y axis, determine the plane A with the Y axis and the point G outside the Y axis, and on the plane A, take the straight line passing through the origin O and perpendicular to the Y axis as the X axis, take point O as the origin of the coordinate system, the X axis as the horizontal axis, and the Y axis as the vertical axis to establish a plane rectangular coordinate system, then the coordinates of point O are (0,0), the coordinates of point G are (x G ,y G ); Step S52: after determining the specific category of the material based on the collected material information, match the preset coefficient k of the current material category in the big database; Step S53: Substitute k into the parabolic trajectory function relationship y=-ax of the material delivered by the screw conveyor 2 Among them And a>0, then the parabolic trajectory function expression of the current material after being sent out from the screw conveyor is Where v is the flow rate of the material in the conveying cylinder of the screw conveyor; Step S54: Since the parabola trajectory passes through point G(x G ,y G ), then the optimal flow rate v0 satisfies Right now The output v0 of the flow rate analysis module is the optimal flow rate of the material in the conveying cylinder of the screw conveyor, so that the material can be delivered from the discharge port in a The parabolic trajectory is sent, where k is a constant greater than 0 and v0>

0.

8. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 7 is characterized in that: In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes: Step S5a: obtaining calibration data for the spatial position of the loading vehicle, locking the plane of the loading port area of ​​the loading vehicle and the size of the plane of the area; Step S5b: Divide the plane of the loading port area into nine small areas in the form of a "nine-square grid" in equal proportion through the area division submodule, and obtain the side length c and side width d of the small area, where c≥d; Step S5c: Fitting the material from the discharge port point O(0,0) to the center position point G(x G ,y G ) of the material parabolic trajectory and generate a fitting curve S; Step S5d: For the function The derivative is By formula Calculate the length of the fitting curve S, and then use the formula Calculate the cross-sectional diameter of the material in the conveying cylinder of the screw conveyor, where L S is the length of the curve fitted by the parabolic trajectory of the material, d is the side width length of a grid after the plane of the loading port area is divided into nine grids, σ is the diffusion coefficient of the current material category with the delivery distance, and P0 is the cross-sectional diameter of the material in the conveying cylinder of the screw conveyor.

9. The intelligent control system for a screw conveyor based on variable frequency speed regulation technology according to claim 8 is characterized in that: In step S5, the method in which the conveying analysis and calculation module analyzes and calculates the optimal flow rate of the material in the conveying cylinder of the screw conveyor according to the acquired data information specifically includes: Step S5e: Compare the diameter P of the screw conveyor cylinder b , through the formula Calculate the optimal flow rate of the material in the conveying cylinder of the screw conveyor, and the flow analysis module outputs the analysis and calculation results of Q0.

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