Material flow intelligent monitoring system with calibration function

Abstract

The invention provides an intelligent material flow monitoring system with a calibration function. The intelligent material flow monitoring system comprises a material contour detection device, a transmission system detection device and a control device. The material contour detection device is used for detecting volume information of materials conveyed by the material conveying system within a preset time period; the conveying system detection device is used for detecting characteristic parameters of the material conveying system in the material conveying process within a preset time period; and the control device calculates first mass information of the material according to the characteristic parameters, calculates second mass information of the material according to the material volume information, and calibrates the first mass information of the material based on the second mass information of the material to obtain third mass information of the material. According to the invention, mutual calibration is carried out through double detection modes, the accuracy of material quality monitoring is improved, equipment abnormity can be found in time, and the operation reliability of a material conveying system is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of material monitoring, and particularly relates to an intelligent material flow monitoring system with a calibration function. Background Art

[0002] At present, in the process of transporting materials, the material transport system needs to timely and accurately understand the quality or volume information of the transported materials. In particular, the belt conveyor system is widely used in transporting materials, and the quality and volume information of the materials transported on the belt conveyor system often needs to be intelligently obtained to improve the intelligent management efficiency. There is a close relationship between the belt scale and the belt conveyor system, and they together constitute an important part of material transportation and metering in industrial production. First, the belt conveyor system is a device for continuously transporting bulk materials. It transports materials from one place to another through a circulating belt, and has the advantages of simple structure, stable operation, long transportation distance, etc., and is widely used in industries such as mines, ports, power, and chemical industries. The belt scale is a dynamic metering device installed on the belt conveyor system, and its main function is to automatically weigh the materials conveyed on the belt. The belt scale can measure the material flow rate passing through the belt in real time and accumulate and calculate the total weight, providing accurate data support for the production management and trade settlement of enterprises.

[0003] Therefore, most on-site workers directly use on-site weighing devices (such as belt scales) and speed measuring devices (such as speed sensors) to achieve the detection of the mass flow of materials. As is well known, the cost of belt scales is relatively high. If there are multiple bins that need to be filled or emptied simultaneously on-site, setting up multiple belt scales will increase the cost significantly; in addition, when the belt scale detects the mass flow of materials on an inclined plane with a slope, there are technical defects such as low accuracy and large errors; however, most bins need to transport materials through a long and sloped belt during the feeding process to store the materials in the bin. However, the belt scale will be greatly affected by the gravity component during the climbing stage, which will greatly affect its measurement accuracy.

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

[0005] The present disclosure provides an intelligent material flow monitoring system with a calibration function, which is used to solve the technical problems that the existing material transport system has high costs for real-time monitoring of the quality of transported materials and low accuracy.

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

[0007] Both the material profile detection device and the transmission system detection device are connected to the control device;

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

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

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

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

[0012] For the intelligent material flow monitoring system with a calibration function according to at least one embodiment of the present disclosure, the material transportation system obtains the characteristic parameters during the material transportation process through a sensor module, and the control device calculates at least the first mass information of the materials transported by the material transportation system according to the characteristic parameters.

[0013] For the intelligent material flow monitoring system with a calibration function according to at least one embodiment of the present disclosure, the material transportation system obtains the torque value or the tension value through a torque sensor or a tensiometer respectively.

[0014] For the intelligent material flow monitoring system with a calibration function according to at least one embodiment of the present disclosure, the material profile detection device at least includes 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 materials transported by the material transportation system to obtain the material level information.

[0016] The image recognition unit is at least used to obtain the initial image information and the end image information at the start time and the end time of a preset time period, and obtain the displacement data of the material in the movement direction and the profile data of the material according to the initial image information and the end image information.

[0017] The profile calculation unit is at least used to calculate according to the material level information, the displacement data, and the profile data to obtain the volume information of the material.

[0018] According to the intelligent monitoring system for material flow with a calibration function according to at least one embodiment of the present disclosure, the control device is configured to obtain the material 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 material particle size information.

[0019] According to the intelligent monitoring system for material flow with a calibration function according to at least one embodiment of the present disclosure, the control device calculating the second mass information of the material based on the volume information includes:

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

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

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

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

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

[0025] Calculate the real-time density information of the material transported by the material transport system based on the first mass information and the volume information;

[0026] Compensate the real-time density information based on the reference density information of the material to obtain the material density distribution information of the material transported by the material transport system.

[0027] According to the intelligent monitoring system for material flow with a calibration function according to at least one embodiment of the present disclosure, 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 the intelligent monitoring system for material flow with a calibration function according to at least one embodiment of the present disclosure, it further includes a warning module, the warning module is connected to the control device, the control device obtains the first mass information and the second mass information, and compares the difference between the first mass information and the second mass information with a preset mass threshold. If the difference is greater than or equal to the preset mass threshold, the control device determines that there is an equipment abnormality in the material transport system or the material profile detection device, and outputs equipment abnormality information to the warning module.

[0029] The present disclosure provides a material flow intelligent monitoring system with a 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 transported by the material transmission system within a preset time period; the transmission system detection device is at least used to detect the characteristic parameters during the material transportation process of the material transmission system within a preset time period; the control device is at least used to calculate the first mass information of the material transported within the preset time period according to the characteristic parameters of the material transmission system, calculate the second mass information of the material according to 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 transported by the material transmission system within the preset time period. By adding a material profile detection device and a control device to the existing material transmission system, the present disclosure realizes the function of a belt scale by combining the belt with the material profile detection device, with high measurement accuracy. It is applicable not only to the transportation of materials on a horizontal plane but also to the transportation of materials on a slope, solving the problem of low measurement accuracy of the existing belt scale on a slope; calculates the first mass information of the material according to 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, and calibrates the first mass information with the second mass information to obtain the third mass information of the real-time material, enabling real-time quality monitoring with relatively high monitoring accuracy; obtains the material particle size information while acquiring the material volume information through the material profile detection device, and then judges the material grade information, improving the accuracy and reliability of data collection; obtains the material density distribution information through the first mass information and the material volume information of the material, and can also judge the material grade information in combination with the reference density information, further improving the accuracy of data collection; the control device judges whether there is an equipment abnormality in the material transmission system or the material profile detection device by comparing the difference between the first mass information and the second mass information of the material with a preset mass threshold, and outputs the equipment abnormality information to the warning module, improving the intelligent quality monitoring level of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings are used to further illustrate the present disclosure and form a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

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

[0032] Figure 2 is a schematic structural diagram of a material flow intelligent monitoring system with a calibration function according to an embodiment of the present disclosureFigure 2 。

[0033] Summary of reference numerals in the drawings:

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

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

[0036] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0037] Example 1

[0038] As Figure 1 shown, the present disclosure provides an intelligent material flow monitoring system with a 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 transported 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 during the material transportation process of the material transmission system within a preset time period; the control device 3 is at least used to calculate the first mass information of the material transported within a preset time period according to the characteristic parameters of the material transmission system, calculate the second mass information of the material according to the volume information, and compensate the first mass information of the material within a preset time period based on the second mass information to obtain the third mass information of the material transported by the material transmission system within a preset time period.

[0039] By adding a material profile detection device 1 and a control device 3 to the existing material transmission system, the present disclosure combines the belt with the material profile detection device 1 to realize the function of a belt scale, with high measurement accuracy, and is applicable not only to the transportation of materials on a horizontal plane but also to the transportation of materials on a slope, solving the problem of low measurement accuracy of the existing belt scale on a slope; calculating the first mass information of the material according to the characteristic parameters of the material transmission system, obtaining the second mass information of the material by acquiring the material volume information through the material profile detection device 1, and calibrating the first mass information with the second mass information to obtain the third mass information of the material, which can perform real-time quality monitoring with high monitoring accuracy.

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

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

[0042] Specifically, the material conveying system obtains the characteristic parameters during the material transmission process through the sensor module, and the control device 3 calculates the first mass information of the material conveyed by the material conveying system according to the characteristic parameters. The sensor module includes a torque sensor and a tensiometer. 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 tensiometer is installed on the belt conveyor to measure the tension value of the belt.

[0043] Of course, the above sensor module can also be a belt scale, that is, the material conveying system can directly obtain the first mass information through the belt scale. At this time, in this case, there is a material transportation path with a horizontal section and a slope section during the material transportation process. In order to accurately obtain the real-time material mass flow information of the material conveying system during the material transportation process, a belt scale can be set in the horizontal section at this time, and the first mass information of the material can be directly and accurately obtained through the belt scale in the horizontal section. At this time, the first mass information obtained through the belt scale can be used to calibrate or compensate the first mass information calculated by the control module to obtain updated first mass information.

[0044] Among them, for the monitoring of the material mass flow of the material transported in the slope section, the control device 3 continues to calculate to obtain the third mass information of the material conveyed by the material conveying system; for the monitoring of the material mass flow with both a horizontal section and a slope section, the first mass information can be directly obtained through the belt scale set in the horizontal section, or the control device 3 can be used to calculate to obtain the third mass information. At this time, the first mass information obtained by the belt scale can be directly used as the mass information of the transported material, that is, the third mass information, or the first mass information obtained by the belt scale can be used to calibrate or compensate the first mass information calculated by the control device 3 to obtain updated first mass information, and then combined with the second mass information to obtain the third mass information.

[0045] As described above, the pulling force required to transport materials on the material transportation system can be obtained through a torque sensor or a tensiometer. If the materials are traveling at a constant speed on the material transportation system, by combining factors such as the material transportation slope angle value of the material transportation system where the materials are located and the friction coefficient between the materials and the contact surface, and based on the principle of force balance, the first mass information of the materials being transported in real time on the material transportation system can be calculated. That is to say, the present disclosure can obtain the first mass information of the materials through calculation by combining the characteristic parameter information of the material transportation system. In order to obtain the material mass information intelligently, the characteristic parameter information of the material transportation system can be input into the control device 3 in advance, or the characteristic parameters of the material transportation system can be measured by sensors and transmitted to the control device 3 in a wired or wireless manner, and then the control device 3 can perform calculations to obtain the first mass information of the materials.

[0046] Among them, in the present disclosure, by adding a material profile detection device 1 and a control device 3 to the existing material transportation system, the function of the existing horizontally installed belt scale for detecting the material mass flow is realized by combining the belt with the material profile detection device 1, and it also has the advantages of high measurement accuracy and low cost. Therefore, the material flow intelligent monitoring system of the present disclosure is not only applicable to the monitoring of materials transported on a horizontal plane, but also applicable to the monitoring of materials transported on a slope, solving the problem of low measurement accuracy of the existing belt scale on a slope.

[0047] In the present disclosure, the material profile detection device 1 is used to obtain the material profile information and further obtain the material volume information. Specifically, the material profile detection device 1 includes a laser measurement unit, an image recognition unit, and a profile calculation unit. The laser measurement unit is installed above the material transportation system and is used to emit laser beams onto the surface of the materials transported by the material transportation system to obtain the material level information. The laser measurement unit can use a multi-point laser rangefinder to form multiple measurement points in the vertical cross-section in the material transportation direction, so as to obtain the material level information (which can be height data) on the material surface. The image recognition unit is installed above the material transportation system, arranged side by side or staggered with the laser measurement unit, and is used to obtain the initial image information and the end image information at the start time and the end time of a preset time period, and obtain the displacement data of the materials in the moving direction and the profile data of the materials according to the initial image information and the end image information. The image recognition unit can use a high-definition industrial camera and cooperate with an image processing algorithm to realize the recognition and tracking of the material surface features. The profile calculation unit is connected to the laser measurement unit and the image recognition unit, and is used to calculate the material volume information according to the material level information, displacement data, and profile data. The profile calculation unit combines the material level information on the material surface obtained by the laser measurement unit with the displacement data and the profile data of the materials obtained by the image recognition unit to calculate the volume information of the materials transported by the material transportation system during the preset time period.

[0048] The material transfer system obtains torque values or tension values through a torque sensor or a tensiometer respectively. The torque sensor uses a strain type torque sensor with a measurement range of 0 - 1000 N·m and an accuracy of ±0.5% F.S. The tensiometer uses a tension sensor with a measurement range of 0 - 5000 N and an accuracy of ±0.2% F.S.

[0049] The control device 3 includes a data acquisition module, a data processing module, and a calibration module. The data acquisition module is used to receive various data collected by the material profile detection device 1 and the transfer system detection device 2; the data processing module is used to process and calculate the collected various data; the calibration module is used to calibrate and correct the calculation results. Specifically, it calculates the first mass information of the material based on the characteristic parameters of the material transfer system, obtains the material volume information through the material profile detection device 1 to further obtain the second mass information of the material, and calibrates the first mass information based on the second mass information to obtain the third mass information of the material, which can perform real-time quality monitoring with relatively high monitoring accuracy.

[0050] Taking the case where the material moves at a constant speed as an example, the process by which the control device 3 calculates the first mass information of the material transferred within a preset time period based on the characteristic parameters of the material transfer system is as follows: First, obtain the driving force based on the torque value; then, according to the principle of material force balance, considering factors such as the material transfer slope angle value of the material transfer system where the material is located and the friction coefficient between the material and the contact surface, calculate the first mass information of the material being transferred in real time on the material transfer system through a mechanical model.

[0051] In addition, the control device 3 of the present disclosure is used to obtain the material particle size information of the material transferred by the material transfer system based on the initial image information and the end image information obtained by the image recognition unit, and then judge the material grade information based on the material 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 proportions of large particles (>50 mm), medium particles (10 - 50 mm), and small particles (<10 mm). Specifically, the material grade information can be divided according to the particle size distribution. For example, it can be divided into four grades: high quality, good, average, and poor.

[0052] In a further embodiment of the present 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: Obtain the reference density information of the material transferred by the material transfer system; obtain the material volume information detected by the material profile detection device 1; calculate the second mass information of the material based on the reference density information and the material volume information of the material. The reference density information of the material can be obtained through laboratory measurement, queried from a material database, or obtained through third-party data archived by the customer. For example, the reference density of coal can be set to 1.3 - 1.5 g / cm 3, the reference density of iron ore can be set to 4.5 - 5.0 g / cm 3 .

[0053] The control device 3 calibrates the first mass information of the material transported by the material transport system within a preset time period based on the second mass information of the material, and obtains the third mass information of the material transported by the material transport system within the preset time period. For example: In the calibration process, the weighted average method is used, that is, the third mass information = α × the first mass information + (1 - α) × the second mass information, where α is the weight coefficient, and its value range is 0 - 1, and it can be dynamically adjusted according to the reliability of the first mass information and the second mass information.

[0054] The control device 3 is also used to obtain the material density distribution information, specifically including: obtaining 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 first mass information of the material and the material volume information; calibrating the real-time density information based on the reference density information of the material to obtain the material density distribution information of the material transported by the material transport system. Among them, 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 change of the material during the transportation process and provide a basis for material quality evaluation.

[0055] The control device 3 is also used to judge the 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 method of judging the material grade can be combined with the above method of judging the material particle size information, so as to improve the accuracy of judging the material grade.

[0056] As Figure 2 shown, the intelligent material flow monitoring system with a calibration function of the present disclosure further includes a warning module 4, and the warning module 4 is connected to the control device 3. The control device 3 obtains the first mass information and the second mass information of the material, and compares the difference between the first mass information and the second mass information of the material with a preset mass threshold. If the difference is greater than or equal to the preset mass threshold, the control device 3 judges that there is an equipment abnormality in the material transport system or the material profile detection device 1, and outputs equipment abnormality information to the warning module 4. The warning module 4 can be in the form of an audible and visual alarm, a mobile phone APP push, or a monitoring center display screen, etc., and is used to timely remind the operator to pay attention to the equipment abnormality. The preset mass threshold can be set according to the actual application scenario. For example, it can be set to 5%, 10%, or 15% of the first mass information.

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

[0058] Embodiment 2

[0059] Based on Embodiment 1, the material transmission system in this embodiment is a screw conveyor for transporting powdery materials such as cement and fly ash. The characteristic parameters of the material transmission system mainly include torque value, transmission speed, and material transmission slope angle value.

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

[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 driving torque; the angle sensor is installed on the frame of the screw conveyor to measure the inclination angle of the conveyor; the speed sensor is installed on the screw shaft to measure the rotation speed of the screw shaft.

[0062] The control device 3 uses an industrial-grade computer equipped with a high-performance processor and a large-capacity memory, which can process a large amount of data in real time. The control device 3 calculates the first mass information of the material based on the torque value, transmission speed, and slope angle value, combined with the geometric parameters of the screw conveyor (such as pitch, screw diameter, etc.). At the same time, according to the volume information provided by the material profile detection device 1 and the material reference density information (such as the reference density of cement is 3.0 - 3.2 g / cm 3 , and the reference density of fly ash is 2.0 - 2.2 g / cm 3 ), the second mass information of the material is calculated.

[0063] The control device 3 uses an adaptive calibration algorithm to dynamically adjust the weight coefficient α according to historical data and current measurement results, so that the third mass information of the calibrated material is more accurate. At the same time, the control device 3 can also analyze the change trend of the material density distribution and predict possible material quality problems.

[0064] In addition to the functions of sound and light alarm, the warning module 4 also adds a remote monitoring function, which can transmit device abnormal information to the mobile terminals of management personnel in real time through the industrial Internet, realizing the monitoring of the device status anytime and anywhere.

[0065] Embodiment III

[0066] Based on Embodiment I, the material conveying system in this embodiment is a vibrating conveyor for conveying granular materials such as grains and plastic particles. The characteristic parameters of the material conveying system mainly include transmission acceleration, friction coefficient between the material and the contact surface, and transmission speed.

[0067] The laser measurement unit of the material profile detection device 1 uses a three-dimensional laser scanner, which can obtain the complete three-dimensional information of the material surface. The image recognition unit uses a binocular stereo vision camera, which can more accurately obtain the depth information of the material. The profile calculation unit uses point cloud processing technology, which can accurately reconstruct the three-dimensional shape of the material.

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

[0069] The control device 3 adopts an edge computing architecture, distributes some data processing tasks to the edge nodes close to the sensors, reduces data transmission delay, and improves the system response speed. The control device 3 calculates the first mass information of the material according to the transmission acceleration, friction coefficient, and transmission speed, combined with the working principle of the vibrating conveyor. At the same time, according to the volume information provided by the material profile detection device 1 and the material reference density information (for example, the reference density of grains is 0.7 - 0.8 g / cm 3 , and the reference density of plastic particles is 0.9 - 1.1 g / cm 3 ), the second mass information of the material is calculated.

[0070] The control device 3 adopts a machine learning algorithm, establishes a relationship model between material characteristics and measurement errors by analyzing historical data, continuously optimizes the calibration strategy, and improves the accuracy of the third mass information of the material. At the same time, the control device 3 can also comprehensively evaluate the quality grade of the material according to the material particle size information and material density distribution information, providing a decision-making basis for production management.

[0071] The warning module 4 adopts a hierarchical alarm mechanism. According to the different degrees of abnormality, it issues alarms at different levels and gives corresponding handling suggestions to help operators quickly locate and solve problems.

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

[0073] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0074] Furthermore, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. An intelligent monitoring system for material flow with a calibration function, characterized in that, It includes a material profile detection device, a transmission system detection device and a control device; Both the material profile detection device and the transmission system detection device are connected to the control device; The material profile detection device is at least used to detect the volume information of the material transported by the material transmission system within a preset time period; The transmission system detection device is at least used to detect the characteristic parameters during the material transmission process of the material transmission system within a preset time period; The control device is at least used to calculate the first mass information of the material transported within a preset time period according to the characteristic parameters of the material transmission system, calculate the second mass information of the material according to 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 transported by the material transmission system within the preset time period.

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

3. The intelligent monitoring system for material flow with a calibration function according to claim 2, characterized in that, The material transmission system obtains the characteristic parameters during the material transmission process through a sensor module, and the control device at least calculates the first mass information of the material transported by the material transmission system according to the characteristic parameters.

4. The intelligent material flow monitoring system with a calibration function according to claim 3, characterized in that, The material transmission system obtains the torque value or the tension value through a torque sensor or a tensiometer respectively.

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

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

7. The intelligent material flow monitoring system with a calibration function according to claim 1, characterized in that, The control device calculates the second mass information of the material according to the volume information, including: Obtaining the reference density information of the material transported by the material transmission system; Obtaining the volume information of the material detected by the material profile detection device; Calculating the second mass information of the material based on the reference density information of the material and the volume information.

8. The intelligent material flow monitoring system with a calibration function according to claim 1, characterized in that The control device is at least further used to obtain the material density distribution information, specifically including: Obtaining the volume information detected by the material profile detection device; Calculating the real-time density information of the material transported by the material transmission system based on the first mass information and the volume information; Compensating the real-time density information based on the reference density information of the material to obtain the material density distribution information of the material transported by the material transmission system.

9. The intelligent material flow monitoring system with a calibration function according to claim 8, characterized in that, The control device is further configured to determine the material grade information based on the material density distribution information and the reference density information.

10. The intelligent material flow monitoring system with a calibration function according to claim 1, characterized in that, It further includes a warning module, the warning module is connected to the control device, the control device obtains 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 abnormality in the material transmission system or the material profile detection device, and outputs equipment abnormality information to the warning module.

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