Stream intelligent monitoring system with calibration function

Abstract

The present disclosure provides a kind of stream intelligent monitoring system with calibration function, including material profile detection device, transmission system detection device and control device.Material profile detection device is used to detect the volume information of material transmitted by material transmission system in preset time period;Transmission system detection device is used to detect the characteristic parameter of material transmission process in preset time period by material transmission system;Control device calculates the first mass information of material according to characteristic parameter, and calculates the second mass information of material according to material volume information, calibrates the first mass information of material based on the second mass information of material, obtains the third mass information of material.The present application improves the accuracy of material quality monitoring by mutual calibration of double detection mode, and can find equipment anomaly in time, improve the operation reliability of material transmission system.

Description

Technical Field

[0001] This disclosure relates to the field of material monitoring technology, specifically to an intelligent material flow monitoring system with calibration function. Background Technology

[0002] Currently, material handling systems require timely and accurate information on the quality or volume of transported materials. Belt conveyor systems, in particular, are widely used for transporting materials, and intelligent acquisition of the quality and volume information of materials transported on these systems is often necessary to improve intelligent management efficiency. Belt scales and belt conveyor systems are closely related, together forming an important part of material handling and metering in industrial production. Firstly, belt conveyor systems are used for the continuous transport of bulk materials. They transport materials from one point to another via a circulating belt, offering advantages such as simple structure, stable operation, and long conveying distances, and are widely used in industries such as mining, ports, power, and chemicals. Belt scales, on the other hand, are dynamic metering devices installed on belt conveyor systems. Their main function is to automatically weigh the materials conveyed on the belt. Belt scales can measure the material flow rate through the belt in real time and calculate the total weight, providing accurate data support for enterprise production management and trade settlement.

[0003] Therefore, on-site personnel mostly use existing weighing devices (such as belt scales) and speed measuring devices (such as speed sensors) to detect the mass flow of materials. It is well known that belt scales are expensive, and if multiple silos need to be fed or discharged simultaneously, setting up multiple belt scales would increase costs significantly. Furthermore, belt scales suffer from low accuracy and large errors when detecting material mass flow on inclined surfaces. However, most silos require long, sloping belts to transport materials into the silos for storage during the feeding process; however, the belt scale's measurement accuracy is greatly affected by gravity during the incline phase.

[0004] Therefore, there is an urgent need in this field for a technical solution that can solve the above-mentioned technical problems. Summary of the Invention

[0005] This disclosure provides a material flow intelligent monitoring system with calibration function, which is used to solve the technical problems of high cost and low accuracy in real-time material quality monitoring of existing material transport systems.

[0006] This disclosure provides a material flow intelligent monitoring system with calibration function, including a material profile detection device, a transmission system detection device, and a control device;

[0007] The material contour detection device and the transmission system detection device are both connected to the control device.

[0008] The material profile detection device is used at least to detect the volume information of the material transported by the material transport system within a preset time period.

[0009] The transmission system detection device is used to detect at least the characteristic parameters of the material transmission system during the material transmission process within a preset time period.

[0010] The control device is at least used to calculate the first mass information of the material being transported within a preset time period based on the characteristic parameters of the material transport system, and to calculate the second mass information of the material based on the volume information. Based on the second mass information, the first mass information of the material within the preset time period is compensated to obtain the third mass information of the material being transported by the material transport system within the preset time period.

[0011] According to at least one embodiment of the intelligent material flow monitoring system with calibration function, the characteristic parameters of the material conveying system include at least one of torque value, tension value, conveying speed, conveying acceleration, friction coefficient between material and contact surface, and material conveying slope angle value.

[0012] According to at least one embodiment of the present disclosure, a material flow intelligent monitoring system with calibration function is provided, wherein the material conveying system acquires characteristic parameters during the material conveying process through a sensor module, and the control device calculates at least the first quality information of the material conveyed by the material conveying system based on the characteristic parameters.

[0013] According to at least one embodiment of the present disclosure, a material flow intelligent monitoring system with calibration function acquires torque or tension values ​​through a torque sensor or a tension meter, respectively.

[0014] According to at least one embodiment of the intelligent material flow monitoring system with calibration function disclosed herein, the material profile detection device includes at least a laser measurement unit, an image recognition unit, and a profile calculation unit.

[0015] The laser measurement unit is at least used to emit a laser beam onto the surface of the material being transported by the material transport system in order to obtain material level information;

[0016] The image recognition unit is at least used to acquire initial image information and end image information of the start and end of a preset time period, and to acquire displacement data of the material in the direction of motion and contour data of the material based on the initial image information and the end image information.

[0017] The contour calculation unit is used at least to calculate the material volume information based on the material level information, displacement data, and contour data.

[0018] According to at least one embodiment of the present disclosure, a material flow intelligent monitoring system with calibration function is provided, wherein the control device is used to obtain the material particle size information of the material transmitted by the material conveying system based on the initial image information and the end image information obtained by the image recognition unit, and then determine the material grade information based on the material particle size information.

[0019] According to at least one embodiment of the intelligent material flow monitoring system with calibration function of this disclosure, the control device calculates the second mass information of the material based on the volume information, including:

[0020] Obtain the reference density information of the material being transported by the material transport system;

[0021] Obtain the material volume information detected by the material contour detection device;

[0022] The second mass information of the material is calculated based on the reference density information and the volume information of the material.

[0023] According to at least one embodiment of the intelligent material flow monitoring system with calibration function of this disclosure, the control device is further configured to obtain material density distribution information, specifically including:

[0024] Obtain the volume information detected by the material contour detection device;

[0025] The real-time density information of the material transported by the material transport system is calculated based on the first mass information and the volume information.

[0026] The real-time density information is compensated based on the material's baseline density information to obtain the material density distribution information of the material transported by the material transport system.

[0027] According to at least one embodiment of the present disclosure, a material flow intelligent monitoring system with calibration function is provided, wherein the control device is further configured to determine the material grade information based on the material density distribution information and the reference density information.

[0028] According to at least one embodiment of the present disclosure, the intelligent material flow monitoring system with calibration function further includes an alarm module connected to the control device. The control device acquires the first quality information and the second quality information, and compares the difference between the first quality information and the second quality information with a preset quality threshold. If the difference is greater than or equal to the preset quality threshold, the control device determines that there is an equipment malfunction in the material transfer system or the material contour detection device, and outputs equipment malfunction information to the alarm module.

[0029] This disclosure provides a material flow intelligent monitoring system with calibration function, including a material profile detection device, a transmission system detection device, and a control device; the material profile detection device and the transmission system detection device are both connected to the control device; the material profile detection device is at least used to detect the volume information of the material transmitted by the material transmission system within a preset time period; the transmission system detection device is at least used to detect the characteristic parameters of the material transmission process in the material transmission system within the preset time period; the control device is at least used to calculate the first mass information of the material transmitted within the preset time period based on the characteristic parameters of the material transmission system, and calculate the second mass information of the material based on the volume information, and compensate the first mass information of the material within the preset time period based on the second mass information to obtain the third mass information of the material transmitted by the material transmission system within the preset time period. This disclosure achieves the function of a belt scale by adding a material profile detection device and a control device to an existing material conveying system. This combination of belt conveyor and material profile detection device results in high measurement accuracy, suitable not only for transporting materials on horizontal surfaces but also on slopes, solving the problem of low measurement accuracy of existing belt scales on slopes. The system calculates the first mass information of the material based on the characteristic parameters of the material conveying system, obtains the material volume information through the material profile detection device, and then obtains the second mass information. The second mass information is used to calibrate the first mass information to obtain the real-time third mass information, enabling real-time quality monitoring with high accuracy. The material profile detection device simultaneously acquires material particle size information to determine material grade information, improving the accuracy and reliability of data acquisition. The material density distribution information is obtained from the first mass information and material volume information, and combined with benchmark density information, material grade information can also be determined, further improving the accuracy of data acquisition. The control device compares the difference between the first and second mass information with a preset mass threshold to determine if there are any equipment abnormalities in the material conveying system or the material profile detection device, and outputs equipment abnormality information to the warning module, improving the intelligent quality monitoring level of the system. Attached Figure Description

[0030] The accompanying drawings are provided to illustrate a further understanding of this disclosure and form part of the specification. They are used together with the following detailed description to explain this disclosure, but do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a material flow intelligent monitoring system with calibration function according to an embodiment of this disclosure. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of a material flow intelligent monitoring system with calibration function according to an embodiment of this disclosure. Figure 2 .

[0033] Summary of attached image labels:

[0034] 1. Material profile detection device; 2. Conveying system detection device;

[0035] 3. Control device; 4. Warning module. Detailed Implementation

[0036] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0037] Example 1

[0038] like Figure 1 As shown, this disclosure provides a material flow intelligent monitoring system with calibration function, including a material profile detection device 1, a transmission system detection device 2, and a control device 3; the material profile detection device 1 and the transmission system detection device 2 are both connected to the control device 3; the material profile detection device 1 is at least used to detect the volume information of the material transmitted by the material transmission system within a preset time period; the transmission system detection device 2 is at least used to detect the characteristic parameters of the material transmission process in the material transmission system within the preset time period; the control device 3 is at least used to calculate the first mass information of the material transmitted within the preset time period based on the characteristic parameters of the material transmission system, and calculate the second mass information of the material based on the volume information, and compensate the first mass information of the material within the preset time period based on the second mass information to obtain the third mass information of the material transmitted by the material transmission system within the preset time period.

[0039] This disclosure achieves the function of a belt scale by adding a material profile detection device 1 and a control device 3 to an existing material conveying system. By combining the belt with the material profile detection device 1, it achieves high measurement accuracy and is suitable not only for transporting materials on horizontal surfaces but also for transporting materials on slopes, thus solving the problem of low measurement accuracy of existing belt scales on slopes. The first mass information of the material is calculated based on the characteristic parameters of the material conveying system. The material volume information is obtained through the material profile detection device 1, and then the second mass information of the material is obtained. The first mass information is calibrated using the second mass information to obtain the third mass information of the material. This enables real-time quality monitoring with high accuracy.

[0040] The material conveying system can be a common material conveying device such as a belt conveyor, screw conveyor, or vibrating conveyor. In this embodiment, the material conveying system is a belt conveyor used to transport bulk materials such as coal and ore. The preset time period can be set according to actual needs, for example, it can be set to 2 minutes, 5 minutes, 10 minutes, or 15 minutes.

[0041] The aforementioned transmission system detection device 2 is used to detect characteristic parameters of the material transmission system during the material transmission process within a preset time period. Specifically, the characteristic parameters of the material transmission system include one or more of the following: torque value, tension value, transmission speed, transmission acceleration, coefficient of friction between the material and the contact surface, and material transmission slope angle. In this embodiment, the transmission system detection device 2 mainly detects the torque value and tension value.

[0042] Specifically, the material handling system acquires characteristic parameters during the material handling process through a sensor module, and the control device 3 calculates the first mass information of the material being handled based on these characteristic parameters. The sensor module includes a torque sensor and a tension meter. For example, the torque sensor is installed on the drive motor shaft of the belt conveyor to measure the torque value output by the drive motor; the tension meter is installed on the belt conveyor to measure the belt tension value.

[0043] Of course, the aforementioned sensor module can also be a belt scale, meaning the material transport system can directly obtain the initial mass information through the belt scale. In this case, the material transport path includes a horizontal section and a sloping section. To accurately obtain the real-time mass flow information of the material being transported by the material transport system, a belt scale can be installed on the horizontal section to directly and accurately obtain the initial mass information of the material. The initial mass information obtained from the belt scale can then be used to calibrate or compensate for the initial mass information calculated by the control module to obtain updated initial mass information.

[0044] For monitoring the material quality flow of the ramp section, the control device 3 continues to calculate and obtain the third quality information of the material transported by the material transport system. For monitoring the material quality flow of both horizontal and ramp sections, the first quality information can be directly obtained by the belt scale set in the horizontal section, or the third quality information can be obtained by the control device 3. In this case, the first quality information obtained by the belt scale can be directly used as the quality information of the transported material, i.e., the third quality information, or the first quality information obtained by the belt scale can be used to calibrate or compensate the first quality information obtained by the control device 3 to obtain the updated first quality information, and then combined with the second quality information to obtain the third quality information.

[0045] The aforementioned torque sensor or tension meter can obtain the pulling force required to transport materials on the material conveying system. If the material travels at a constant speed on the material conveying system, combined with factors such as the material conveying slope angle of the material conveying system and the coefficient of friction between the material and the contact surface, and based on the principle of force balance, the initial mass information of the material being transported on the material conveying system in real time can be calculated. In other words, this disclosure can obtain the initial mass information of the material by combining the characteristic parameter information of the material conveying system. To intelligently obtain the material mass information, the characteristic parameter information of the material conveying system can be input into the control device 3 in advance, or the characteristic parameters of the material conveying system can be measured by sensors and transmitted to the control device 3 via wired or wireless means, and then the control device 3 can perform calculations to obtain the initial mass information of the material.

[0046] In this disclosure, by adding a material profile detection device 1 and a control device 3 to the existing material conveying system, the existing horizontally mounted belt scale can be used to detect the mass flow of materials by combining the belt with the material profile detection device 1. It also has the advantages of high measurement accuracy and low cost. Therefore, the intelligent material flow monitoring system of this disclosure is not only suitable for monitoring the transport of materials on a horizontal surface, but also for monitoring the transport of materials on a slope, thus solving the problem of low measurement accuracy of existing belt scales on slopes.

[0047] This disclosure utilizes a material contour detection device 1 to acquire material contour information and subsequently material volume information. Specifically, the material contour detection device 1 includes a laser measurement unit, an image recognition unit, and a contour calculation unit. The laser measurement unit is installed above the material conveying system and is used to emit a laser beam onto the surface of the material being conveyed by the system to acquire material level information. The laser measurement unit can employ a multi-point laser rangefinder to form multiple measurement points on a vertical cross-section along the material conveying direction, thereby acquiring the material surface level information (which may be height data). The image recognition unit is installed above the material conveying system, either parallel to or offset from the laser measurement unit, and is used to acquire initial and final image information at the start and end points of a preset time period. Based on the initial and final image information, it acquires the material displacement data and contour data in the direction of movement. The image recognition unit can employ a high-definition industrial camera, combined with image processing algorithms, to identify and track the surface features of the material. The contour calculation unit is connected to the laser measurement unit and the image recognition unit and is used to calculate the material volume information based on the material level information, displacement data, and contour data. The contour calculation unit combines the material surface level information obtained by the laser measurement unit with the displacement data and material contour data obtained by the image recognition unit to calculate the volume information of the material transported by the material transport system within the preset time period.

[0048] The material handling system acquires torque or tension values ​​using either a torque sensor or a tension gauge. The torque sensor is a strain gauge type with a measurement range of 0-1000 N·m and an accuracy of ±0.5% FS. The tension gauge is a tension sensor with a measurement range of 0-5000 N and an accuracy of ±0.2% FS.

[0049] The control device 3 includes a data acquisition module, a data processing module, and a calibration module. The data acquisition module receives various data collected by the material profile detection device 1 and the transmission system detection device 2; the data processing module processes and calculates the collected data; and the calibration module calibrates and corrects the calculation results. Specifically, it calculates the first mass information of the material based on the characteristic parameters of the material transmission system, obtains the second mass information of the material by acquiring the material volume information through the material profile detection device 1, and calibrates the first mass information based on the second mass information to obtain the third mass information of the material. This allows for real-time quality monitoring with high accuracy.

[0050] Taking the uniform motion of materials as an example, the process by which the control device 3 calculates the first mass information of the materials transmitted within a preset time period based on the characteristic parameters of the material transmission system is as follows: First, the driving force is obtained based on the torque value; then, based on the principle of material force balance, combined with factors such as the material transmission slope angle value of the material transmission system where the material is located, and the friction coefficient between the material and the contact surface, the first mass information of the materials transmitted in real time on the material transmission system is calculated through a mechanical model.

[0051] Furthermore, the control device 3 of this disclosure is used to obtain the particle size information of the material being transported by the material conveying system based on the initial and final image information acquired by the image recognition unit, and then determine the material grade information based on the particle size information. The image recognition unit uses a deep learning algorithm to analyze the material image and identify the particle size distribution of the material, such as the proportion of large particles (>50mm), medium particles (10-50mm), and small particles (<10mm). Specifically, the material grade information can be divided according to the particle size distribution, for example, into four grades: high quality, good, average, and poor.

[0052] In a further embodiment of this disclosure, the process by which the control device 3 calculates the second mass information of the material based on the material volume information is as follows: acquiring the reference density information of the material transmitted by the material conveying system; acquiring the material volume information detected by the material profile detection device 1; and calculating the second mass information of the material based on the reference density information and the material volume information. The reference density information of the material can be obtained through laboratory measurement, queried from a material database, or obtained from third-party data archived by the customer. For example, the reference density of coal can be set to 1.3-1.5 g / cm³. 3The standard density of iron ore can be set at 4.5-5.0 g / cm³. 3 .

[0053] Control device 3 calibrates the first quality information of the material transported by the material transport system within a preset time period based on the second quality information of the material, thereby obtaining the third quality information of the material transported by the material transport system within the preset time period. For example, the calibration process adopts a weighted average method, that is, third quality information = α × first quality information + (1-α) × second quality information, where α is a weighting coefficient with a value range of 0-1, which can be dynamically adjusted according to the reliability of the first and second quality information.

[0054] The control device 3 is also used to obtain material density distribution information, specifically including: acquiring the material volume information detected by the material profile detection device 1; calculating the real-time density information of the material transported by the material transport system based on the material's first mass information and material volume information; calibrating the real-time density information based on the material's reference density information to obtain the material density distribution information of the material transported by the material transport system. The real-time density information is equal to the first mass information divided by the material volume information. The calibrated material density distribution information can reflect the density changes of the material during transport, providing a basis for material quality assessment.

[0055] The control device 3 is also used to determine material grade information based on the material density distribution information and the reference density information. The smaller the deviation between the material density distribution information and the reference density information, the higher the material grade; the larger the deviation, the lower the material grade. This material grade determination method can be used in conjunction with the above-mentioned material particle size information determination method, thereby improving the accuracy of material grade determination.

[0056] like Figure 2 As shown, the intelligent material flow monitoring system with calibration function disclosed herein also includes an alarm module 4, which is connected to the control device 3. The control device 3 acquires first and second quality information of the material, and compares the difference between the first and second quality information with a preset quality threshold. If the difference is greater than or equal to the preset quality threshold, the control device 3 determines that there is an equipment malfunction in the material conveying system or the material profile detection device 1, and outputs the equipment malfunction information to the alarm module 4. The alarm module 4 can be in the form of an audible and visual alarm, a mobile APP push notification, or a monitoring center display screen, etc., to promptly remind operators to pay attention to equipment malfunctions. The preset quality threshold can be set according to the actual application scenario, for example, it can be set to 5%, 10%, or 15% of the first quality information.

[0057] In practical applications, this intelligent material flow monitoring system with calibration function can be installed in places with large material conveying volumes, such as mines, ports, and grain depots, to achieve real-time monitoring and quality calibration of the material conveying process. The system acquires the volume information of the material and the characteristic parameters of the material conveying system through the material profile detection device 1 and the conveying system detection device 2, respectively. Then, the control device 3 calculates the quality information of the material and performs calibration to improve the accuracy of quality measurement. At the same time, it can also monitor abnormal equipment conditions and issue alarms in a timely manner to ensure the safe and stable operation of the material conveying system.

[0058] Example 2

[0059] Based on Example 1, the material conveying system in this example is a screw conveyor used to transport powdery materials such as cement and fly ash. The characteristic parameters of the material conveying system mainly include torque, conveying speed, and material conveying slope angle.

[0060] The laser measurement unit of the material contour detection device 1 uses a line laser scanner, which can form a continuous scanning line at the material outlet to acquire the cross-sectional contour of the material. The image recognition unit uses a high-speed industrial camera, which can capture clear images of high-speed moving materials. The contour calculation unit uses an improved volume integration algorithm, which can more accurately calculate the volume of irregularly shaped materials.

[0061] The sensor module in the transmission system detection device 2 includes a torque sensor, an angle sensor, and a speed sensor. The torque sensor is installed on the drive shaft of the screw conveyor to measure the drive torque; the angle sensor is installed on the frame of the screw conveyor to measure the tilt angle of the conveyor; and the speed sensor is installed on the screw shaft to measure the rotational speed of the screw shaft.

[0062] Control device 3 employs an industrial-grade computer equipped with a high-performance processor and large-capacity memory, enabling it to process large amounts of data in real time. Based on torque, transmission speed, and slope angle, combined with the geometric parameters of the screw conveyor (such as pitch and screw diameter), control device 3 calculates the initial mass information of the material. Simultaneously, it uses the volume information and material reference density information (e.g., the reference density of cement is 3.0-3.2 g / cm³) provided by material profile detection device 1. 3 The standard density of fly ash is 2.0-2.2 g / cm³. 3 ), calculate the second quality information of the material.

[0063] Control device 3 employs an adaptive calibration algorithm, dynamically adjusting the weighting coefficient α based on historical data and current measurement results to ensure more accurate third-order mass information of the calibrated material. Simultaneously, control device 3 can also analyze the changing trends of material density distribution and predict potential material quality problems.

[0064] In addition to audible and visual alarm functions, the warning module 4 also features remote monitoring capabilities. It can transmit abnormal equipment information to the mobile terminals of managers in real time via the Industrial Internet, enabling equipment status monitoring anytime and anywhere.

[0065] Example 3

[0066] Based on Example 1, the material conveying system in this example is a vibrating conveyor used to convey granular materials, such as grains and plastic granules. The characteristic parameters of the material conveying system mainly include conveying acceleration, the coefficient of friction between the material and the contact surface, and the conveying speed.

[0067] The laser measurement unit of the material contour detection device 1 uses a 3D laser scanner to acquire complete 3D information of the material surface. The image recognition unit uses a binocular stereo vision camera to more accurately acquire the depth information of the material. The contour calculation unit uses point cloud processing technology to accurately reconstruct the 3D shape of the material.

[0068] The sensor module in the transmission system detection device 2 includes an acceleration sensor, a friction sensor, and a velocity sensor. The acceleration sensor is installed on the vibrating component of the vibrating conveyor to measure vibration acceleration; the friction sensor is installed on the conveying surface to measure the friction force between the material and the contact surface; and the velocity sensor is used to measure the actual conveying speed of the material.

[0069] Control device 3 employs an edge computing architecture, distributing some data processing tasks to edge nodes closer to the sensors, reducing data transmission latency and improving system response speed. Based on transmission acceleration, friction coefficient, and transmission speed, combined with the working principle of the vibrating conveyor, control device 3 calculates the initial mass information of the material. Simultaneously, it uses the volume information and material reference density information provided by material profile detection device 1 (e.g., the reference density of grains is 0.7-0.8 g / cm³). 3 The standard density of plastic granules is 0.9-1.1 g / cm³. 3 ), calculate the second quality information of the material.

[0070] Control device 3 employs machine learning algorithms to analyze historical data, establish a model relating material characteristics to measurement errors, and continuously optimize calibration strategies to improve the accuracy of the material's third-order quality information. Simultaneously, control device 3 can comprehensively evaluate the material's quality level based on particle size and density distribution information, providing a basis for production management decisions.

[0071] The warning module 4 adopts a hierarchical alarm mechanism, which issues different levels of alarms according to the degree of abnormality and provides corresponding handling suggestions to help operators quickly locate and solve problems.

[0072] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0074] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A material flow intelligent monitoring system with calibration function, characterized in that, Includes material profile detection device, transmission system detection device and control device; The material contour detection device and the transmission system detection device are both connected to the control device. The material profile detection device is used at least to detect the volume information of the material transported by the material transport system within a preset time period. The transmission system detection device is used to detect at least the characteristic parameters of the material transmission system during the material transmission process within a preset time period. The control device is at least used to calculate the first mass information of the material being transported within a preset time period based on the characteristic parameters, and to calculate the second mass information of the material based on the volume information. Based on the second mass information, the first mass information of the material within the preset time period is compensated to obtain the third mass information of the material being transported by the material transport system within the preset time period. The control device calculates the second mass information of the material based on the volume information, including: Obtain the reference density information of the material being transported by the material transport system; Obtain the material volume information detected by the material contour detection device; The second mass information of the material is calculated based on the reference density information and the volume information of the material; Furthermore, the control device is at least used to obtain material density distribution information, specifically including: Obtain the volume information detected by the material contour detection device; The real-time density information of the material transported by the material transport system is calculated based on the first mass information and the volume information. The real-time density information is compensated based on the material's baseline density information to obtain the material density distribution information of the material transported by the material transport system.

2. The intelligent material flow monitoring system with calibration function according to claim 1, characterized in that, The characteristic parameters include at least one of the following: torque value, tension value, transmission speed, transmission acceleration, coefficient of friction between material and contact surface, and material transmission slope angle value.

3. The intelligent material flow monitoring system with calibration function according to claim 2, characterized in that, The material transfer system acquires the characteristic parameters through a sensor module, and the control device calculates at least the first quality information of the material transferred by the material transfer system based on the characteristic parameters.

4. The intelligent material flow monitoring system with calibration function according to claim 3, characterized in that, The material transfer system obtains torque or tension values ​​through torque sensors or tension meters, respectively.

5. The intelligent material flow monitoring system with calibration function according to claim 1, characterized in that, The material contour detection device includes at least a laser measurement unit, an image recognition unit, and a contour calculation unit. The laser measurement unit is at least used to emit a laser beam onto the surface of the material being transported by the material transport system in order to obtain material level information; The image recognition unit is at least used to acquire initial image information and end image information of the start and end of a preset time period, and to acquire displacement data of the material in the direction of motion and contour data of the material based on the initial image information and the end image information. The contour calculation unit is used at least to calculate the material volume information based on the material level information, displacement data, and contour data.

6. The intelligent material flow monitoring system with calibration function according to claim 5, characterized in that, The control device is used to obtain the particle size information of the material transported by the material transport system based on the initial image information and the end image information obtained by the image recognition unit, and then determine the material grade information based on the particle size information.

7. The intelligent material flow monitoring system with calibration function according to claim 1, characterized in that, The control device is also used to determine material grade information based on the material density distribution information and the reference density information.

8. The intelligent material flow monitoring system with calibration function according to claim 1, characterized in that, It also includes an alert module, which is connected to the control device. The control device acquires the first quality information and the second quality information, and compares the difference between the first quality information and the second quality information with a preset quality threshold. If the difference is greater than or equal to the preset quality threshold, the control device determines that there is an equipment malfunction in the material conveying system or the material contour detection device, and outputs equipment malfunction information to the alert module.

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