Visual hanging material detection and management system of sliding conveying equipment

Abstract

The invention provides a sliding conveying equipment visual hanging material detection and management system, which comprises at least one volume flow detection module, which is used for obtaining and outputting material volume flow information input to sliding conveying equipment, the input material volume flow information is used for determining the input material volume flow; the at least one material thickness detection module is used for acquiring and outputting the thickness of the material in the sliding conveying equipment, and the thickness of the material is at least used for determining the thickness of the flowing material; according to the volume flow of the input material, the thickness of the material and a predetermined mapping relation between the volume flow of the input material and the thickness of the material under the condition that the material is not hung in the sliding conveying equipment, whether the material is hung in the sliding conveying equipment or not is judged, and the thickness of the hung material is determined and is the thickness of the material attached to the sliding conveying equipment.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hanging material detection, etc., and particularly relates to a visual hanging material detection and management system for a chute conveying device. Background Art

[0002] Chute conveying devices (such as chutes or chute pipes) are widely used in the industrial field. For example, chutes and chute pipes are usually used in transfer stations for transporting materials such as sand, gravel, and coal.

[0003] During long-term use, materials are likely to adhere to the inner wall of the chute or the pipe wall of the chute pipe (i.e., hanging materials). However, the internal conditions of the chute and the chute pipe are difficult for operators to detect. Therefore, over time, the hanging material problem becomes more and more serious, and the flow capacity of the materials inside the chute and the chute pipe becomes smaller and smaller, until it causes material blockage and material overflow, resulting in a series of adverse consequences such as safety accidents, material waste, and reduced work efficiency. Summary of the Invention

[0004] The present disclosure provides a visual hanging material detection and management system for a chute conveying device to solve at least one of the above technical problems.

[0005] According to one aspect of the present disclosure, there is provided a visual hanging material detection and management system for a chute conveying device, including: at least one volumetric flow rate detection module, which is used to obtain and output the volumetric flow rate information of the materials input into the chute conveying device, and the input volumetric flow rate information of the materials is used to determine the input volumetric flow rate of the materials; at least one material thickness detection module, which is used to obtain and output the thickness of the materials in the chute conveying device, and the thickness of the materials is at least used to determine the thickness of the flowing materials; according to the input volumetric flow rate of the materials, the thickness of the materials, and the pre-determined mapping relationship between the input volumetric flow rate of the materials and the thickness of the materials when no hanging materials occur in the chute conveying device, it is judged whether the chute conveying device has hanging materials and the hanging material thickness is determined, and then combined with the thickness of the materials to determine the thickness of the flowing materials, where the hanging material thickness is the thickness of the materials attached to the inside of the chute conveying device.

[0006] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure further includes: determining the mapping relationship between the input volumetric flow rate of the materials, the thickness of the materials, and the hanging material thickness when the chute conveying device has hanging materials.

[0007] According to the visual hanging material detection and management system for the chute equipment according to at least one embodiment of the present disclosure, the volumetric flow rate detection module includes any one of a belt scale, a 3D lidar, or a 3D material profile measuring instrument, and is used to detect the volumetric flow rate of the material at the inlet of the chute equipment, and the volumetric flow rate of the material at the inlet of the chute equipment is used as the input material volumetric flow rate; alternatively, the volumetric flow rate detection module includes a 2D lidar or a 2D material profile measuring instrument, and is used to detect the cross-sectional area of the material at the inlet of the chute equipment, and the cross-sectional area is combined with the material flow velocity to obtain the input material volumetric flow rate information, which is used as the input material volumetric flow rate. The material flow velocity includes the belt conveying velocity at the inlet of the chute equipment detected by a belt velocity sensor or the velocity obtained by a velocity sensor of the chute equipment itself or a velocity encoder of the belt itself at the inlet of the chute equipment.

[0008] According to the visual hanging material detection and management system for the chute equipment according to at least one embodiment of the present disclosure, the volumetric flow rate detection module includes at least one first velocity and distance measuring sensor, and the first velocity and distance measuring sensor has at least one detection angle, and is used to detect the cross-sectional area and the material flow velocity of the material at the inlet of the chute equipment, and calculate the input material volumetric flow rate information for use as the input material volumetric flow rate.

[0009] According to the visual hanging material detection and management system for the chute equipment according to at least one embodiment of the present disclosure, it further includes: at least one second velocity and distance measuring sensor, which is installed at the top of the chute equipment in the material flow direction, and is used to detect the volumetric flow rate information of the material flowing in the chute equipment, and the volumetric flow rate information of the material flowing in is used to determine the volumetric flow rate of the material flowing in.

[0010] According to the visual hanging material detection and management system for the chute equipment according to at least one embodiment of the present disclosure, the number of the second velocity and distance measuring sensors is 1, and the second velocity and distance measuring sensor has one detection angle, and is arranged at the top of the chute equipment in the material flow direction to detect the thickness and the material flow velocity of the material at one angle at one position, and the thickness of the material corresponding to the angle at the position is used as the average material thickness in the entire material width direction in the chute equipment, and the material flow velocity corresponding to the angle at the position is used as the average material flow velocity in the entire material flow direction in the chute equipment, and the volumetric flow rate of the entire material in the chute equipment is determined by combining the dimensions of the chute equipment, or the thickness of the material corresponding to the angle at the position is used as the average material thickness in the material width direction at the position in the chute equipment, and the material flow velocity corresponding to the angle at the position is used as the average material flow velocity in the material flow direction at the position in the chute equipment, and the volumetric flow rate of the material at the position in the chute equipment is determined by combining the dimensions of the chute equipment.

[0011] According to the visual hanging material detection and management system of the chute conveying equipment according to at least one embodiment of the present disclosure, the number of the second speed and distance sensors is N, which are arranged at the top in the material flow direction of the chute conveying equipment to detect N positions. Each of the second speed and distance sensors has a detection angle for respectively detecting the thickness and the material flow velocity of the material at an angle at each of the N positions; the thickness of the material corresponding to the angle at each position is used as the average material thickness in the material width direction at each position, and the material flow velocity corresponding to the angle at each position is used as the average material flow velocity in the material flow direction at each position. Combining the dimensions of the chute conveying equipment, the volume flow rate Q of the chute conveying material at the N positions is determined. 2-1 to Q 2-N The volume flow rates Q of the chute conveying material at the N positions are accumulated. 2-1 to Q 2-N The volume flow rate of the entire material in the chute conveying equipment is obtained; alternatively, the thicknesses of the materials corresponding to each angle at the N positions are added and then averaged or weighted averaged as the average material thickness in the entire material width direction in the chute conveying equipment, and the material flow velocities corresponding to each angle at the N positions are added and then averaged or weighted averaged as the average material flow velocity in the entire material flow direction in the chute conveying equipment. Then, combining the dimensions of the chute conveying equipment, the volume flow rate of the entire material in the chute conveying equipment is determined.

[0012] According to the visual hanging material detection and management system of the chute conveying equipment according to at least one embodiment of the present disclosure, the number of the second speed and distance sensors is N, which are arranged at the top in the material flow direction of the chute conveying equipment to detect N positions. Each of the second speed and distance sensors detects the thickness and the material flow velocity of the material at M angles; the thickness of the material corresponding to each angle at each position is used as the average material thickness in the material width direction at each angle at each position, and the material flow velocity corresponding to each angle at each position is used as the average material flow velocity in the material flow direction at each angle at each position. Combining the dimensions of the chute conveying equipment, the volume flow rate Q of the chute conveying material at each angle at each position is determined. 3-1-1 to Q 3-N-M At each position, the volume flow rates of the chute conveying material at the M angles are respectively accumulated to obtain the volume flow rates Q of the chute conveying material at the N positions. 3-1 to Q 3-N Then, the volume flow rates Q of the chute conveying material at the N positions are accumulated. 3-1 to Q 3-NObtain the volume flow rate of the chute-fed material of the entire material in the chute-feeding device; or, after respectively accumulating the thicknesses of the materials corresponding to M angles at each of the positions and then taking the average or weighted average as the average material thickness in the material width direction at each of the positions, and respectively accumulating the material flow velocities corresponding to M angles at each of the positions and then taking the average or weighted average as the average material flow velocity in the material flow direction at each of the positions, and then combining with the dimensions of the chute-feeding device to determine the volume flow rate of the chute-fed material at N of the positions, and then accumulating the volume flow rates of the chute-fed material at N of the positions to obtain the volume flow rate of the chute-fed material of the entire material in the chute-feeding device; or, directly accumulate the volume flow rates Q 3-1-1 to Q 3-N-M Obtain the volume flow rate of the chute-fed material of the entire material in the chute-feeding device.

[0013] For the visual hanging material detection and management system of the chute-feeding device according to at least one embodiment of the present disclosure, the volume flow rates Q 3-1-1 to Q 3-N-M of the chute-fed material at N positions and M angles within a fixed time T are compared with the input material volume flow rates within a fixed time Z respectively, to obtain the hanging material conditions at N positions and M angles and to determine whether the materials at N positions and M angles flow smoothly, where T is greater than Z.

[0014] For the visual hanging material detection and management system of the chute-feeding device according to at least one embodiment of the present disclosure, the volume flow rate of the chute-fed material is compared with the input material volume flow rate to determine whether the material in the chute-feeding device flows smoothly and whether there is hanging material.

[0015] For the visual hanging material detection and management system of the chute-feeding device according to at least one embodiment of the present disclosure, the material thickness detection module includes any one of a microwave radar, an ultrasonic rangefinder, a laser rangefinder, and a lidar. The material thickness detection module is installed at the top in the material flow direction of the chute-feeding device. The material thickness detection module is used to detect the empty height between the material and the top at at least one position and at least one angle in the material flow direction of the chute-feeding device, and then convert the thickness of the material in combination with the relative position between the bottom of the chute-feeding device and the material thickness detection module. The thickness of the material, in combination with the input material volume flow rate, determines the first flowing material thickness.

[0016] The visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure further includes: at least one speed sensor, and at least one of the speed sensors is installed near the material thickness detection module. The speed sensor is used to detect the flow rate of the material in the chute conveying equipment at the installation position, and determine the volume flow rate information of the material conveyed in the chute conveying equipment in combination with the thickness of the material detected by the material thickness detection module. The volume flow rate information of the conveyed material is used to determine the volume flow rate of the conveyed material.

[0017] For the visual hanging material detection and management system of the chute conveying equipment according to at least one embodiment of the present disclosure, the number of the speed sensors and the number of the material thickness detection modules are respectively multiple. The multiple material thickness detection modules are installed at different positions on the top in the material flow direction in the chute conveying equipment, and the multiple speed sensors are respectively installed near the multiple material thickness detection modules; the number of the speed sensors and the number of the material thickness detection modules may be equal or unequal; according to the flow rates of the materials in the chute conveying equipment at multiple positions detected by the multiple speed sensors and the thicknesses of the materials at multiple positions detected by the multiple material thickness detection modules, the volume flow rates of the conveyed materials at multiple positions are determined, and the volume flow rate of the entire material in the chute conveying equipment is obtained.

[0018] For the visual hanging material detection and management system of the chute conveying equipment according to at least one embodiment of the present disclosure, the volume flow rates of the conveyed materials at multiple positions are respectively compared with the input material volume flow rate to determine whether there is hanging material at multiple positions in the chute conveying equipment and whether the material flow is smooth; the volume flow rate of the entire material in the chute conveying equipment is compared with the input material volume flow rate to obtain whether there is hanging material in the chute conveying equipment and whether the material is smooth.

[0019] For the visual hanging material detection and management system of the chute conveying equipment according to at least one embodiment of the present disclosure, according to the input material volume flow rate, the thickness of the material at different positions, and in combination with the mapping relationship between the input material volume flow rate and the thickness of the material when there is no hanging material in the chute conveying equipment, it is determined whether the chute conveying equipment has hanging material, whether there is hanging material at different positions, and the hanging thickness at different positions is determined.

[0020] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the material thickness detection module is configured to obtain and output the thickness of the material at a first position in the chute conveying device, and the material thickness at the first position is used to determine the hanging material thickness and the flowing material thickness at the first position; the system further includes at least one layer flow velocity meter, which is configured to detect the flow velocity of the material at different thicknesses at at least one second position in the chute conveying device, and is used to determine whether it is a hanging material static state or a material flowing state at different thicknesses at at least one second position according to the flow velocity of the material at different thicknesses at at least one second position in the chute conveying device, so as to obtain the hanging material thickness, the material thickness, the flowing material thickness, the volume flow rate of the chute conveying material at at least one second position, and the volume flow rate of the chute conveying material of the entire material in the chute conveying device.

[0021] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the number of the layer flow velocity meters is P, and the P layer flow velocity meters are installed at different second positions in the material flow direction of the chute conveying device; according to the flow velocity of the material at different thicknesses at different second positions in the chute conveying device and the thickness of the material, the hanging material thickness, the material thickness, and the flowing material thickness at different second positions are obtained, and the volume flow rate Q of the chute conveying material at each second position is determined according to the flowing material thickness, the flow velocity of the material, and the size of the chute conveying device at each second position 5-1 to Q 5-P and accumulate the volume flow rate Q of the chute conveying material at each second position 5-1 to Q 5-P and then verify the accuracy of the input material volume flow rate; verify the accuracy of the input material volume flow rate according to the volume flow rate of the chute conveying material at each second position respectively.

[0022] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, according to the flowing material thickness and / or the hanging material thickness at each second position in the chute conveying device, in the case where there is no hanging material in the chute conveying device and the flowing material thickness at the second position is different from or the difference is greater than the thickness threshold value compared with the flowing material thickness at the first position, correct the mapping relationship between the input material volume flow rate and the material thickness determined in advance in the case where there is no hanging material in the chute conveying device based on the flowing material thickness at the second position; and in the case where there is hanging material in the chute conveying device and the hanging material thickness at the second position is different from or the difference is greater than the thickness threshold value compared with the hanging material thickness at the first position, correct the mapping relationship between the input material volume flow rate, the material thickness, and the hanging material thickness determined in advance in the case where there is hanging material in the chute conveying device based on the hanging material thickness at the second position.

[0023] The visualization hanging material detection and management system for the chute conveyor according to at least one embodiment of the present disclosure determines the actual chute conveying allowance according to the hanging material thickness; uses the ratio of the actual chute conveying allowance to the volume flow rate threshold when the chute conveyor conveys materials as the actual flow-through capacity value of the chute conveyor; and controls the feeding speed and / or the feeding volume flow rate during the feeding process to the chute conveyor according to the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value, where the percentage is obtained from the actual flow-through capacity value and the desired flow-through capacity value.

[0024] The visualization hanging material detection and management system for the chute conveyor according to at least one embodiment of the present disclosure further includes: a material cleaning module configured to clean the materials in the chute conveyor when the actual flow-through capacity value is less than a first threshold and / or the percentage of the decrease in the actual flow-through capacity value is greater than or equal to a second threshold, and / or the hanging material thickness is greater than or equal to a third threshold; or clean the materials in the chute conveyor based on a set period.

[0025] After the material cleaning module of the visualization hanging material detection and management system for the chute conveyor according to at least one embodiment of the present disclosure cleans the materials in the chute conveyor, it re-determines the hanging material thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value; and determines the cleaning effect of the material cleaning module according to the re-determined hanging material thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value.

[0026] The visualization hanging material detection and management system for the chute conveyor according to at least one embodiment of the present disclosure further includes: an outlet volume flow rate detection module configured to output the volume flow rate information of the materials at the outlet of the chute conveyor; determine the outlet material volume flow rate according to the volume flow rate information of the materials at the outlet of the chute conveyor, and judge whether the material flow is smooth according to the input material volume flow rate and the outlet material volume flow rate.

[0027] The visualization hanging material detection and management system for the chute conveyor according to at least one embodiment of the present disclosure further includes: a display configured to at least display one or more of the input material volume flow rate, the thickness of the flowing materials at the first position, the hanging material thickness at the second position, the hanging material detection result, the hanging material thickness at the first position, the thickness of the flowing materials at the second position, the volume flow rate of the chute-conveyed materials at each second position, the volume flow rate of the chute-conveyed materials at each angle at each second position, the actual chute conveying allowance, the actual flow-through capacity value, and the percentage of the decrease in the actual flow-through capacity value.

[0028] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, when the chute conveying device stops conveying materials, obtains the thickness of the materials output by the material thickness detection module; determines whether the chute conveying device has hanging materials according to the thickness of the materials; and when it is determined that the chute conveying device has hanging materials, determines the hanging material thickness according to the thickness of the materials.

[0029] According to another aspect of the present disclosure, there is provided a visual hanging material detection and management system for a chute conveying device, including: at least one material detection module, the material detection module is used to detect and output the first chute conveying material information in the chute conveying device, and the first chute conveying material information includes one or more of the material flow velocity at different thicknesses, the volume flow rate of the chute conveying materials, the thickness of the materials, the hanging material thickness, and the thickness of the flowing materials; determines whether the chute conveying device has hanging materials and determines the target hanging material thickness according to the first chute conveying material information.

[0030] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, the first chute conveying material information includes the material flow velocity at different thicknesses. When there is a material flow velocity less than or equal to the material flow velocity threshold, it is determined that the chute conveying device has hanging materials, and the thickness corresponding to the material flow velocity less than or equal to the material flow velocity threshold is used as the target hanging material thickness; or, the first chute conveying material information includes the volume flow rate of the chute conveying materials and the thickness of the materials. When the difference obtained by subtracting the thickness of the materials corresponding to the volume flow rate of the chute conveying materials in the case where there is no hanging material in the chute conveying device from the thickness of the materials is greater than the set value, it is determined that the chute conveying device has hanging materials, and the difference between the thickness of the materials and the thickness of the materials corresponding to the volume flow rate of the chute conveying materials in the case where there is no hanging material in the chute conveying device is used as the target hanging material thickness; or, the first chute conveying material information includes the hanging material thickness. When the hanging material thickness is greater than the set value, it is determined that the chute conveying device has hanging materials, and the hanging material thickness is used as the target hanging material thickness; or, the first chute conveying material information includes the thickness of the materials and the thickness of the flowing materials. When the difference obtained by subtracting the thickness of the flowing materials from the thickness of the materials is greater than the set value, it is determined that the chute conveying device has hanging materials, and the difference between the thickness of the materials and the thickness of the flowing materials is used as the target hanging material thickness.

[0031] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the material detection module includes a layered flow velocity meter, and based on the material flow velocities at different thicknesses obtained by detecting at least one position in the chute conveying device by at least one of the layered flow velocity meters, it is determined whether the state at different thicknesses at at least one position is a hanging material static state or a material flowing state, so as to determine the hanging material thickness, material thickness, flowing material thickness at at least one position, the volume flow rate of the chute conveying material at at least one position, and the volume flow rate of the entire chute conveying material of the chute conveying device.

[0032] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the layered flow velocity meter has a plurality of velocity measurement probes, and the plurality of velocity measurement probes are distributed in the material thickness direction.

[0033] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure further includes: at least one material thickness detection module for acquiring and outputting the thickness of the material in the chute conveying device; when the thickness of the material acquired by the material thickness detection module is greater than the thickness at which the plurality of velocity measurement probes of the layered flow velocity meter are located, at least one of the layered flow velocity meters at least obtains the hanging material thickness at at least one position, combines the thickness of the material acquired by at least one of the material thickness detection modules, obtains the flowing material thickness at at least one position, and calculates the volume flow rate of the chute conveying material at at least one position and the volume flow rate of the entire chute conveying material of the chute conveying device.

[0034] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the position detected by the material thickness detection module is the same as the position detected by the layered flow velocity meter.

[0035] The visual hanging material detection and management system for a chute conveying device according to at least one embodiment of the present disclosure, wherein the number of the layered flow velocity meters is P, and the P layered flow velocity meters are installed at different positions in the material flow direction of the chute conveying device; based on the flow velocities of the materials at different thicknesses at different positions in the chute conveying device and the thickness of the material, the hanging material thickness, material thickness, and flowing material thickness at different positions are obtained, and according to the flowing material thickness, material flow velocity, and chute conveying device dimensions at each position, the volume flow rate Q 5-1 to Q 5-P of the chute conveying material at each position is determined, and the volume flow rates Q 5-1 to Q 5-P of the chute conveying material at each position are accumulated to obtain the volume flow rate of the entire chute conveying material of the chute conveying device.

[0036] The visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure further includes: an outlet volume flow rate detection module for outputting the volume flow rate information of the material at the outlet of the chute conveying equipment; determining the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the chute conveying equipment, and judging whether the material flow in the chute conveying equipment is smooth according to the volume flow rates of the chute conveying materials at different positions and the outlet material volume flow rate.

[0037] The visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure further includes: an outlet volume flow rate detection module for outputting the volume flow rate information of the material at the outlet of the chute conveying equipment; determining the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the chute conveying equipment, and judging whether the material flow in the chute conveying equipment is smooth by comparing the volume flow rate of the whole conveyed material with the outlet material volume flow rate.

[0038] The visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure determines the actual conveying allowance according to the target hanging material thickness; takes the ratio of the actual conveying allowance to the volume flow rate threshold when the chute conveying equipment conveys materials as the actual flow-through capacity value of the chute conveying equipment; and controls the feeding speed and / or the feeding volume flow rate during the feeding process to the chute conveying equipment according to the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value, and the percentage is obtained from the actual flow-through capacity value and the expected flow-through capacity value.

[0039] The visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure further includes: a material cleaning module for cleaning the material in the chute conveying equipment when the actual flow-through capacity value is less than the first threshold and / or the percentage of the decrease in the actual flow-through capacity value is greater than or equal to the second threshold, and / or the target hanging material thickness is greater than or equal to the third threshold; or cleaning the material in the chute conveying equipment based on a set period.

[0040] After the material cleaning module cleans the material in the chute conveying equipment, the visual hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure re-determines the target hanging material thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value; and determines the cleaning effect of the material cleaning module according to the re-determined target hanging material thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value.

[0041] The visualization hanging material detection and management system for the chute conveying equipment according to at least one embodiment of the present disclosure further includes: a display, which is at least used to display one or more of the volume flow rate of the chute conveying material, the thickness of the flowing material, the hanging material detection result, the target hanging material thickness, the actual chute conveying allowance, the actual flow-through capacity value, and the percentage of the decrease in the actual flow-through capacity value. Description of the Drawings

[0042] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0043] Figure 1 It is a schematic block diagram of the structure of the visualization hanging material detection and management system for the chute conveying equipment according to an embodiment of the present disclosure.

[0044] Figure 2 It is a three-dimensional structure schematic diagram of the volume flow rate detection module, the material thickness detection module, and the chute conveying equipment according to an embodiment of the present disclosure.

[0045] Figure 3 It is a visualization example diagram of the first flowing material thickness and the first hanging material thickness in the chute conveying equipment according to an embodiment of the present disclosure.

[0046] Figure 4 It is a three-dimensional structure schematic diagram of the second speed measurement and distance measurement sensor, the material thickness detection module, and the chute conveying equipment according to an embodiment of the present disclosure.

[0047] Figure 5 It is a visualization example diagram of the first detection angle and the second detection angle of the second speed measurement and distance measurement sensor at a certain position in the material flow direction in the chute conveying equipment according to an embodiment of the present disclosure.

[0048] Figure 6 It is a three-dimensional structure schematic diagram of the speed sensor, the material thickness detection module, and the chute conveying equipment according to an embodiment of the present disclosure.

[0049] Figure 7 It is a three-dimensional structure schematic diagram of the speed sensor, the material thickness detection module, the chute conveying equipment, and the stratified flow velocity meter according to an embodiment of the present disclosure.

[0050] Figure 8 It is an example diagram of the position distribution of multiple speed measurement probes in the stratified flow velocity meter according to an embodiment of the present disclosure.

[0051] Figure 9 It is an example diagram of the position distribution of multiple speed measurement probes in the stratified flow velocity meter according to another embodiment of the present disclosure.

[0052] Figure 10 Schematic three-dimensional structure diagram of the volumetric flow rate detection module, material thickness detection module, chute device, layered flow velocity meter, and material cleaning module of an embodiment of the present disclosure.

[0053] Figure 11 Schematic three-dimensional structure diagram of the visual hanging material detection and management system for the chute device of an embodiment of the present disclosure.

[0054] Figure 12 Schematic block diagram of the structure of the visual hanging material detection and management system for the chute device of another embodiment of the present disclosure.

[0055] Figure 13 Schematic three-dimensional structure diagram of the material detection module, material thickness detection module, and chute device of an embodiment of the present disclosure.

[0056] Description of reference numerals:

[0057] Volumetric flow rate detection module 100, material thickness detection module 200, chute device 300, inlet 302, top 304, bottom 306, second speed and distance sensor 400, speed sensor 500, layered flow velocity meter 600, material cleaning module 700, air valve 701, gas storage pressure tank 702, filter 703, gas delivery pipeline 704, gas probe 705, material detection module 800, material flow direction H, first detection angle α1, second detection angle α2. Detailed implementation manners

[0058] The present disclosure will be further described in detail below with reference to the drawings and examples. It can be understood that the specific examples described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the drawings.

[0059] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and embodiments.

[0060] A chute conveying device can be understood as a device that uses the weight of the material itself and / or a certain speed when the material enters to transport the material from a high place to a low place, such as a chute, a chute pipe, etc. Due to factors such as the physical properties of the material (such as viscosity, humidity) or the internal structure design of the chute conveying device, material hanging often occurs on the chute wall or pipe wall of the chute conveying device. Since the operator cannot directly observe the real-time situation inside the chute conveying device, the problem of material hanging is often difficult to be detected in time, and the material flow capacity cannot be judged. As the material continuously accumulates on the chute wall or pipe wall, the degree of material hanging gradually intensifies, and the material flow capacity also decreases, eventually possibly leading to the occurrence of material blockage. This situation will not only cause waste of materials and reduce production efficiency, but may also cause equipment shutdown or even safety accidents, bringing significant negative impacts to industrial production.

[0061] Therefore, the present disclosure proposes a visual material hanging detection and management system for a chute conveying device.

[0062] In the present disclosure, the volumetric flow rate can be understood as the flow rate expressed in volume / time or volume / time.

[0063] Figure 1 The structural schematic block diagram of the visual material hanging detection and management system for a chute conveying device according to an embodiment of the present disclosure is shown. As Figure 1 shown, the visual material hanging detection and management system for a chute conveying device according to the embodiment of the present disclosure includes at least one volumetric flow rate detection module 100 and at least one material thickness detection module 200.

[0064] The volumetric flow rate detection module 100 is used to obtain and output the volumetric flow rate information of the material input into the chute conveying device 300, and the input volumetric flow rate information of the material is used to determine the input volumetric flow rate of the material.

[0065] As a possible implementation, the input material volume flow rate information may directly include the input material volume flow rate, which may be directly detected by the volume flow rate detection module 100 or calculated by the volume flow rate detection module 100 based on at least some of the parameter information directly detected by itself for determining the input material volume flow rate. The at least some of the parameter information may include the cross-sectional area of the material and / or the flow velocity of the material. As another possible implementation, the input material volume flow rate information may not include the input material volume flow rate but include at least some of the parameter information required for determining the input material volume flow rate. For example, the input material volume flow rate information may include the cross-sectional area of the material and / or the flow velocity of the material. Thus, the module that receives the material volume flow rate information input to the chute conveyor 300 output by the volume flow rate detection module 100 can automatically calculate the input material volume flow rate based on the parameter information in the input material volume flow rate information. The input material volume flow rate can be understood as the volume flow rate of the material at the inlet of the chute conveyor 300 or the volume flow rate of the material conveyed in the chute conveyor 300.

[0066] The volume flow rate detection module 100 can be installed at the inlet 302 of the chute conveyor 300 (as Figure 2 shown), or at the top 304 of the chute conveyor 300, which is not limited here. The number of the volume flow rate detection modules 100 can be one or more. Thus, the number of the input material volume flow rate information can be one or more. In the case where there are multiple pieces of input material volume flow rate information, one input material volume flow rate can be determined by averaging or weighted averaging based on the multiple pieces of input material volume flow rate information, or multiple input material volume flow rates can be determined respectively based on the multiple pieces of input material volume flow rate information.

[0067] The material thickness detection module 200 is used to obtain and output the thickness of the material in the chute conveyor 300. The thickness of the material is at least used to determine the thickness of the flowing material.

[0068] The thickness of the material may be directly detected by the material thickness detection module 200 or calculated by the material thickness detection module 200 based on at least some of the parameter information directly detected by itself for determining the thickness of the material. The at least some of the parameter information may include the clearance height between the material and the top 304 of the chute conveyor 300. Thus, the material thickness detection module 200 can automatically calculate the thickness of the material based on the clearance height and the dimensions of the chute conveyor 300. The top 304 of the chute conveyor 300 can be understood as the part in the chute conveyor 300 that does not contact the material or contacts the material very little under a certain volume flow rate. The bottom 306 of the chute conveyor 300 can be understood as the part in the chute conveyor 300 that contacts the material under a certain volume flow rate and is opposite to the top.

[0069] The thickness of the material can be understood as the maximum vertical distance between the material in contact with air at a certain location in the chute device 300 and the bottom 306 of the chute device 300 (such as Figure 3 the length of the line segment AB shown in Figure 3 ). The hanging material thickness can be understood as the maximum vertical distance between the material that adheres to the chute device 300 and does not flow at a certain location in the chute device 300 and the bottom 306 of the chute device 300 (such as Figure 3 the length of the line segment AC shown in Figure 3 ). The flowing material thickness can be understood as the thickness of the space occupied by the flowing material at a certain location in the chute device 300 (such as Figure 3 the length of the line segment BC shown in

[0070] ). The empty height can be understood as the minimum height of the air between the upper surface of the material in contact with air at a certain location and the top 304 of the chute device 300 (such as Figure 2 the length of the line segment BD shown in

[0071] ). The sum of the empty height and the material thickness at a position in the chute device 300 is the chute device thickness at that position (such as Figure 3 the length of the line segment AD shown in Figure 3 ). Since the material closer to the bottom 306 is more likely to adhere to the chute device 300, for the material with a certain thickness in the chute device 300, a certain thickness of the material may be the material that adheres to the chute device 300 and does not flow, and another certain thickness of the material may be the material that does not adhere to the chute device 300 and can flow. That is to say, the thickness of the material is greater than or equal to the hanging material thickness. In the case of hanging material at a position, the sum of the flowing material thickness and the hanging material thickness at that position in the chute device 300 is the material thickness at that position; in the case of no hanging material at a position, the hanging material thickness is 0, and the flowing material thickness at that position in the chute device 300 is the material thickness at that position.

[0070] The material thickness detection module 200 can be installed on the top 304 of the chute device 300, as Figure 2 shown. The number of the material thickness detection modules 200 can be one or more, and thus the number of the obtained material thicknesses can be one or more. In the case of multiple material thicknesses, one material thickness can be determined by averaging or weighted averaging according to the multiple material thicknesses, and the hanging material detection can be performed using this one material thickness; or the hanging material detection can be performed for multiple positions respectively according to the material thicknesses at multiple positions.

[0071] The number of the volumetric flow rate detection modules 100 and the number of the material thickness detection modules 200 may be the same or different. For example, only one volumetric flow rate detection module 100 may be provided while multiple material thickness detection modules 200 may be provided, or the same number of volumetric flow rate detection modules 100 and material thickness detection modules 200 may be provided, or the number of the volumetric flow rate detection modules 100 is less than the number of the material thickness detection modules 200, which is not limited herein. In the case where the same number of volumetric flow rate detection modules 100 and material thickness detection modules 200 are provided, the volumetric flow rate detection modules 100 may be provided in one-to-one correspondence with the material thickness detection modules 200, that is, each volumetric flow rate detection module 100 is provided at a position near a material thickness detection module 200. In the present disclosure, the "near position" should be understood as the distance between the two is less than a preset distance threshold.

[0072] According to the input material volumetric flow rate, the thickness of the material, and the mapping relationship (i.e., the first mapping relationship) between the input material volumetric flow rate and the thickness of the material when no material hanging occurs in the chute device determined in advance, it is determined whether the chute device has material hanging and the hanging thickness is determined, and then combined with the thickness of the material, the flowing material thickness is determined, and the mapping relationship (i.e., the second mapping relationship) between the input material volumetric flow rate, the thickness of the material, and the hanging thickness when the chute device has material hanging is determined. The hanging thickness may be the thickness of the material attached in the chute device.

[0073] The above steps may be executed by the volumetric flow rate detection module 100. For example, a first MCU may be provided in the volumetric flow rate detection module 100, and the first MCU may implement the above steps by executing a computer program after receiving the thickness of the material output by the material thickness detection module 200; or it may be executed by the material thickness detection module 200. For example, a second MCU may be provided in the material thickness detection module 200, and the second MCU may implement the above steps by executing a computer program after receiving the material volumetric flow rate information output by the volumetric flow rate detection module 100; or it may be executed by a third MCU or a host computer independent of the volumetric flow rate detection module 100 and the material thickness detection module 200. For example, the third MCU or the host computer may implement the above steps by executing a computer program after receiving the material volumetric flow rate information output by the volumetric flow rate detection module 100 and the thickness of the material output by the material thickness detection module 200.

[0074] The first mapping relationship can be obtained based on the established simulation model of the mechanical structure of the chute equipment, or by adjusting the volume flow rate of the input material on-site and recording the thickness of the material without material hanging under this volume flow rate of the input material, or by accumulating the operation data of the chute equipment. The first mapping relationship can be in the form of a function formula or a chart, which is not limited herein. In the first mapping relationship, the volume flow rate of the input material can correspond one-to-one with the thickness of the material. In some embodiments, the first mapping relationships corresponding to different positions in the material flow direction of the chute equipment 300 can be different. Thus, the corresponding first mapping relationship can be determined according to the volume flow rate information of the material and / or the detection position of the thickness of the material, and then it can be determined whether the chute equipment 300 has material hanging according to the first mapping relationship corresponding to the detection position. The content related to the second mapping relationship can refer to the description of the above first mapping relationship. For the sake of brevity, it will not be repeated here.

[0075] Further, after determining the material thickness corresponding to the first mapping relationship, the volume flow rate of the input material, and the thickness of the material, the first flowing material thickness without material hanging corresponding to the volume flow rate of the input material can be determined through the first mapping relationship. Then, if the thickness of the material is greater than the material thickness without material hanging corresponding to the volume flow rate of the input material, it can be determined that the chute equipment 300 has material hanging. Moreover, the hanging thickness can be obtained by subtracting the material thickness without material hanging corresponding to the volume flow rate of the input material from the thickness of the material. If the thickness of the material is less than or equal to the material thickness without material hanging corresponding to the volume flow rate of the input material, it can be determined that the chute equipment 300 has no material hanging.

[0076] The visualization material hanging detection and management system for the chute equipment according to the embodiments of the present disclosure automatically detects the volume flow rate information of the material input into the chute equipment 300 through the volume flow rate detection module 100, and automatically detects the thickness of the material in the chute equipment 300 through the material thickness detection module 200. Then, it determines whether the chute equipment has material hanging and determines the hanging thickness according to the volume flow rate of the input material, the thickness of the material, and the mapping relationship between the volume flow rate of the input material and the thickness of the material without material hanging in the chute equipment determined in advance. Thereby, automatic detection of material hanging is realized, manual intervention is reduced, which is beneficial to improving production efficiency. At the same time, since two factors, namely the volume flow rate and the material thickness, are comprehensively considered in the process of determining whether there is material hanging, the material hanging detection result is more accurate, avoiding misjudgment that may be caused by a single factor. Moreover, it can automatically determine the hanging thickness, which can provide a specific basis for visualizing the internal situation of the flowing equipment, judging the material flow, subsequent cleaning of the material hanging or adjusting the material conveying, thus avoiding negative impacts such as safety accidents, material waste, and reduced production efficiency caused by material blockage.

[0077] Regarding the volumetric flow rate detection module 100, as a first possible implementation, the volumetric flow rate detection module 100 includes any one of a belt scale, a three-dimensional lidar, or a three-dimensional material profile measuring instrument. Among them, the belt scale, the three-dimensional lidar, or the three-dimensional material profile measuring instrument is used to detect the volumetric flow rate of the material at the inlet 302 of the chute device 300, and the volumetric flow rate of the material at the inlet 302 of the chute device 300 is used as the input material volumetric flow rate. In this way, the volumetric flow rate information output by the volumetric flow rate detection module 100 directly includes the input material volumetric flow rate, which is beneficial to simplifying the processing logic and improving the hanging material detection efficiency. Exemplarily, the belt scale, the three-dimensional lidar, or the three-dimensional material profile measuring instrument can be installed at the inlet 302 of the chute device 300.

[0078] Regarding the volumetric flow rate detection module 100, as a second possible implementation, the volumetric flow rate detection module 100 includes a two-dimensional lidar or a two-dimensional material profile measuring instrument speed sensor 500. Among them, the two-dimensional lidar or the two-dimensional material profile measuring instrument is used to detect the cross-sectional area of the material at the inlet 302 of the chute device 300. The cross-sectional area combined with the material flow velocity can obtain the input material volumetric flow rate information, which is used as the input material volumetric flow rate. The material flow velocity includes the belt conveying velocity at the inlet 302 of the chute device 300 detected by the belt speed sensor, or the velocity obtained by the speed sensor of the chute device 300 itself at the inlet 302 of the chute device 300 or the speed encoder of the belt itself at the inlet 302 of the chute device 300.

[0079] Exemplarily, the two-dimensional lidar or the two-dimensional material profile measuring instrument speed sensor 500 can be installed at the inlet 302 of the chute device 300.

[0080] For the visualization hanging material detection and management system of the chute device in the above implementation, the input material volumetric flow rate can be obtained by calculating the product value of the cross-sectional area and the material flow velocity. In this case, the volumetric flow rate information of the input material of the chute device 300 directly includes the input material volumetric flow rate, which improves the accuracy of the input material volumetric flow rate. When the material flow velocity is obtained by the speed sensor of the chute device 300 itself or the speed encoder of the belt itself at the inlet 302 of the chute device 300, there is no need to additionally add a belt speed sensor in the visualization hanging material detection and management system of the chute device, thereby simplifying the structure of the visualization hanging material detection and management system of the chute device and saving the cost of the visualization hanging material detection and management system of the chute device.

[0081] Regarding the volumetric flow rate detection module 100, as a third possible implementation, the volumetric flow rate detection module 100 includes at least one first speed and distance sensor. The first speed and distance sensor has at least one detection angle for detecting the cross-sectional area and the material flow velocity of the material at the inlet of the chute device, and calculating the input material volumetric flow rate information to be used as the input material volumetric flow rate.

[0082] The first speed and distance sensor can be understood as a sensor that can both measure speed and distance. For example, it can be a MIMO radar. The MIMO radar can include multiple signal transmission modules and signal reception and analysis modules. Each group of signal transmission modules and signal reception and analysis modules monitors different position points, so as to achieve sliced monitoring and make the overall situation inside the chute device 300 visible. The antenna for generating signals and the antenna for receiving signals can be shared or not. The MIMO radar can rotate to increase the detection points, make them more subdivided, and improve the measurement accuracy. The rotation can be that a structure of a stepper motor + bearing + synchronous pulley + belt drives the signal transmission module and the signal reception and analysis module to rotate or the entire MOMO radar rotates, or the rotating shaft of the motor directly drives the signal transmission module and the signal reception and analysis module to rotate or the entire MOMO radar rotates. It can also be that the MOMO radar adjusts the emission angle of the signal transmission module.

[0083] The first speed and distance sensor can be installed at the inlet 302 of the chute device 300.

[0084] When there are multiple first speed and distance sensors, each first speed and distance sensor can detect the cross-sectional area and the material flow velocity of the material at the inlet of the chute device, calculate an input material volumetric flow rate, and then the average value, weighted average value or cumulative value of multiple input material volumetric flow rates can be used as the input material volumetric flow rate for hanging material detection.

[0085] The chute device visual hanging material detection and management system of the above implementation can obtain the input material volumetric flow rate by calculating the product of the cross-sectional area and the material flow velocity. In this case, the input material volumetric flow rate information directly includes the input material volumetric flow rate when inputting materials into the chute device 300, improving the accuracy of the input material volumetric flow rate.

[0086] The volumetric flow rate of the chute material can be understood as the volumetric flow rate of the material chuted in the chute device 300. The steps of determining the volumetric flow rate of the chute material in the present disclosure can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0087] Regarding the volume flow rate of the chute-fed material, as a first possible implementation, the visual hanging material detection and management system for the chute-feeding device may further include at least one second speed and distance sensor 400, which is installed at the top 304 in the material flow direction of the chute-feeding device 300, such as Figure 4 shown, and is used to detect the volume flow rate information of the material chute-fed in the chute-feeding device 300. The volume flow rate information of the chute-fed material is used to determine the volume flow rate of the chute-fed material.

[0088] The second speed and distance sensor 400 can be understood as a sensor that can both measure speed and distance. The second speed and distance sensor 400 can be installed at the top 304 of the chute-feeding device 300. Further, the second speed and distance sensor 400 can be installed by opening a hole at the top 304 of the chute-feeding device 300, and after opening the hole, an isolation plate is used for isolation to prevent the material from contacting the second speed and distance sensor 400, causing wear to the second speed and distance sensor 400, reducing the replacement cost and failure rate. The isolation plate can be a wear-resistant plastic plate, a ceramic plate, or glass, etc., to ensure that the second speed and distance sensor 400 can transmit and receive measurement signals through the isolation plate. The second speed and distance sensor 400 can perform distance measurement based on any one of microwave, ultrasonic wave, and laser.

[0089] The second speed and distance sensor 400 and the first speed and distance sensor may have the same model or different models. The installation positions of the multiple first speed and distance sensors and the installation positions of the multiple second speed and distance sensors 400 are not completely the same or completely different. In the case where the installation positions of a first speed and distance sensor and a second speed and distance sensor 400 are the same, the first speed and distance sensor and the second speed and distance sensor 400 can be the same speed and distance sensor, that is, at this time, one speed and distance sensor can be used as both the first speed and distance sensor and the second speed and distance sensor 400.

[0090] For the visual hanging material detection and management system of the chute-feeding device in the above implementation, by detecting the volume flow rate information of the material chute-fed at the top 304 in the material flow direction of the chute-feeding device 300 by at least one second speed and distance sensor 400, it can more accurately reflect the material distribution and flow state, reduce misjudgment caused by local abnormalities (such as accumulation), improve the accuracy of the obtained volume flow rate of the chute-fed material, be applicable to scenarios where the material flow is uneven, and improve the robustness of the visual hanging material detection and management system of the chute-feeding device.

[0091] In some embodiments of the present disclosure, the number of the second speed and distance measuring sensors 400 is one. The second speed and distance measuring sensor 400 has a detection angle and is arranged at the top 304 in the material flow direction of the chute device 300 to detect the thickness of the material and the material flow speed (i.e., the material volume flow rate information of the chute) at one angle at one position. Accordingly, the thickness of the material corresponding to the one angle at the one position is used as the average material thickness in the entire material width direction in the chute device 300, and the material flow speed corresponding to the one angle at the one position is used as the average material flow speed in the entire material flow direction in the chute device 300. Combining with the dimensions of the chute device, the material volume flow rate of the entire material in the chute device 300 is determined, or the thickness of the material corresponding to the one angle at the one position is used as the average material thickness in the material width direction at the position in the chute device 300, and the material flow speed corresponding to the one angle at the one position is used as the average material flow speed in the material flow direction at the position in the chute device 300. Combining with the dimensions of the chute device, the material volume flow rate of the material at the position in the chute device 300 is determined.

[0092] Exemplarily, according to the average material thickness and the dimensions of the chute device, the average cross-sectional area of the material in the entire or the position in the chute device 300 can be calculated. Furthermore, the product value of the average cross-sectional area of the material in the entire or the position and the average material flow speed can be used as the material volume flow rate of the entire material in the chute device 300 or the material volume flow rate at the position.

[0093] For the visualization hanging material detection and management system of the chute device in the above embodiments, by using one second speed and distance measuring sensor 400 to determine the material volume flow rate of the entire material in the chute device 300 or the material volume flow rate at the position, the structure of the visualization hanging material detection and management system of the chute device is simplified, the cost is saved, and the acquisition of the material volume flow rate is ensured.

[0094] In some embodiments of the present disclosure, the number of the second speed and distance measuring sensors 400 is N, where N is an integer greater than 1. The second speed and distance measuring sensors 400 are arranged at the top 304 of the chute device 300 along the material flow direction to detect N positions. Each second speed and distance measuring sensor 400 has a detection angle and is used to detect the material thickness and the material flow speed at one angle at each of the N positions respectively. Accordingly, the thickness of the material corresponding to the angle at each position is used as the average material thickness in the material width direction at each position, and the material flow speed corresponding to the angle at each position is used as the average material flow speed in the material flow direction at each position. Combining with the dimensions of the chute device, the material volume flow rates Q 2-1 to Q 2-N at the N positions are determined. The material volume flow rates Q 2-1 to Q 2-NObtain the volume flow rate of the material being conveyed in the conveying device 300; or the sum of the material thicknesses corresponding to each angle at N positions is averaged or weighted and averaged to obtain the average material thickness in the entire material width direction within the conveying device 300, and the sum of the material flow velocities corresponding to each angle at N positions is averaged or weighted and averaged to obtain the average material flow velocity in the entire material flow direction within the conveying device 300, and then combined with the dimensions of the conveying device to determine the volume flow rate of the material being conveyed in the entire material in the conveying device 300.

[0095] For the visual material hanging detection and management system of the conveying device in the above embodiment, by using a plurality of second speed and distance sensors 400 installed at different positions along the material flow direction on the top 304 of the conveying device 300 to detect the volume flow rate information of the material being conveyed at the positions in the conveying device 300, it can more accurately reflect the material distribution and flow state, reduce misjudgment caused by local anomalies (such as accumulation), improve the accuracy of the obtained volume flow rate of the material being conveyed, be applicable to scenarios where the material flow is uneven, and improve the robustness of the visual material hanging detection and management system of the conveying device.

[0096] In some embodiments of the present disclosure, the number of the second speed and distance sensors 400 is N, which are arranged along the material flow direction on the top 304 of the conveying device 300 to detect N positions, and each second speed and distance sensor 400 detects the material thickness and material flow velocity at M angles. N and M are respectively integers greater than 1. Correspondingly, the material thickness corresponding to each angle at each position is used as the average material thickness in the material width direction at each angle at each position, and the material flow velocity corresponding to each angle at each position is used as the average material flow velocity in the material flow direction at each angle at each position. Combining the dimensions of the conveying device to determine the volume flow rate Q of the material being conveyed at each angle at each position 3-1-1 to Q 3-N-M , and the volume flow rates of the material being conveyed at M angles at each position are respectively accumulated to obtain the volume flow rates Q 3-1 to Q 3-N at N positions, and then the volume flow rates Q 3-1 to Q at N positions are accumulated again 3-N to obtain the volume flow rate of the material being conveyed in the entire material in the conveying device 300; or the sum of the material thicknesses corresponding to M angles at each position is averaged or weighted and averaged to obtain the average material thickness in the material width direction at each position, and the sum of the material flow velocities corresponding to M angles at each position is averaged or weighted and averaged to obtain the average material flow velocity in the material flow direction at each position. Then, combining the dimensions of the conveying device to determine the volume flow rates of the material being conveyed at N positions, and then accumulating the volume flow rates of the material being conveyed at N positions to obtain the volume flow rate of the material being conveyed in the entire material in the conveying device 300; or directly accumulate the volume flow rates Q of the material being conveyed at each angle at each position3-1-1 to Q 3-N-M obtain the chute material volume flow rate of the entire material in the chute equipment 300.

[0097] In Figure 5 the example of, the second speed and distance measuring sensor 400 can detect the material thickness and the material flow velocity at the first detection angle α1 at the position w1 in the material flow direction H in the chute equipment 300, and the material thickness and the material flow velocity at the second detection angle α2 at the position w1. It can be understood that the more angles are detected, the more detection points there are at the same position in the material flow direction in the chute equipment 300, and thus the more accurate the determined material volume flow rate is.

[0098] When there are multiple second speed and distance measuring sensors 400, the multiple second speed and distance measuring sensors 400 can be arranged along the material flow direction on the top 304 of the chute equipment 300. The multiple second speed and distance measuring sensors 400 can be arranged at equal intervals, in an array; they can also be arranged at unequal intervals; they can also be arranged on the opposite sides of the chute wall or pipe wall where materials are likely to adhere, which is not limited here.

[0099] The chute equipment visualization material adhesion detection and management system of the above embodiment can detect the material volume flow rate information of the chute at different positions along the material flow direction on the top 304 of the chute equipment 300 from multiple angles by the multiple second speed and distance measuring sensors 400, which can more accurately reflect the material distribution and flow state, reduce misjudgment caused by local abnormalities (such as accumulation), improve the accuracy of the obtained chute material volume flow rate, be applicable to the scenario where the material flow is uneven, and improve the robustness of the chute equipment visualization material adhesion detection and management system.

[0100] In some embodiments of the present disclosure, the chute material volume flow rates Q 3-1-1 to Q 3-N-M at N positions at M angles within a fixed time T are compared with the input material volume flow rates within a fixed time Z respectively, to obtain the material adhesion conditions at N positions at M angles and to determine whether the materials at N positions at M angles flow smoothly, where T is greater than Z, and the value of T can be determined by the fixed time Z, the number of angles M, and the width of the bottom of the chute equipment (the width of the material). Exemplarily, T is in a positive relationship with Z, and is also proportional to the number of angles M and the width of the bottom of the chute equipment (the width of the material). The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0101] The fixed time T and the fixed time Z can be preset according to actual needs.

[0102] In one example, the fixed time T is a time period, and then the volume flow rate Q of the sliding material at M angles at N positions within this time period can be determined. 3-1-1 to Q 3-N-M They are respectively compared with the volume flow rate of the input material determined in another time period Z. If the volume flow rate of the sliding material at an angle at a position is less than the volume flow rate of the input material by a certain value (such as 0 or a preset value greater than 0), it can be determined that the flow at this angle at this position is not smooth; otherwise, it is determined that the flow at this angle at this position is smooth.

[0103] According to the volume flow rate of the sliding material at each position and each angle, the thickness of the material, and the aforementioned first mapping relationship, the hanging material situation at each position and each angle can be determined, that is, whether hanging material occurs at each position and each angle and the thickness of the hanging material. The specific implementation method can refer to the aforementioned description of determining whether the sliding device 300 has hanging material. For the sake of brevity, it will not be elaborated here.

[0104] The visualization hanging material detection and management system for the sliding device in the above implementation manner can accurately determine the hanging material situation of the material at each position and each angle in the sliding device 300, and judge whether the material at each position and each angle in the sliding device 300 flows smoothly, thereby providing accurate data support for understanding the material sliding situation in the sliding device 300, which is beneficial to accurately controlling the input material of the sliding device 300 and cleaning the material attached to the sliding device 300.

[0105] Exemplarily, slight hanging material may not cause unsmooth flow, but unsmooth flow usually exists with serious hanging material phenomena. Therefore, in some embodiments, when it is determined that the flow is not smooth, the difference between the volume flow rate of the sliding material and the volume flow rate of the input material can be used as the congestion value, and when the congestion value is greater than or equal to the preset congestion value threshold, the material attached to the sliding device 300 is automatically cleaned and / or the user is prompted, so as to timely prompt and / or eliminate the hanging material phenomenon and avoid a series of adverse consequences caused by hanging material.

[0106] In some embodiments of the present disclosure, the volume flow rate of the sliding material is compared with the volume flow rate of the input material to judge whether the material in the sliding device flows smoothly and whether there is hanging material.

[0107] The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program. The fixed time T can be preset according to actual needs.

[0108] Exemplarily, it can be a comparison between the volume flow rate of the conveyed material in the entire conveying device and the volume flow rate of the input material within a fixed time T (i.e., the volume flow rate of the input material obtained during the accumulation time T) to determine whether there is material hanging in the conveying device and whether the material flow is smooth; or at each moment, the volume flow rate of the conveyed material at each position is compared and analyzed with the volume flow rate of the input material to determine whether there is material hanging at each position in the conveying device and whether the material flow is smooth at each position.

[0109] The visual material hanging detection and management system for the conveying device in the above embodiment can roughly and quickly determine the material hanging situation in the conveying device 300 and judge whether the flow in the conveying device 300 is smooth, thereby providing rough data support for understanding the material conveying situation in the conveying device 300, which is beneficial to more accurately control the input material of the conveying device 300 and clean the adhered material in the conveying device 300.

[0110] In some embodiments of the present disclosure, the material thickness detection module 200 includes any one of a microwave radar, an ultrasonic rangefinder, a laser rangefinder, and a lidar. The material thickness detection module 200 is installed at the top 304 in the material flow direction of the conveying device 300. The material thickness detection module 200 is used to detect the empty height between the material and the top 304 at at least one angle at at least one position in the material flow direction of the conveying device 300, and then calculate the thickness of the material in combination with the relative position between the bottom 306 of the conveying device 300 and the material thickness detection module 200. The thickness of the material is combined with the volume flow rate of the input material to determine the thickness of the flowing material.

[0111] Regarding the understanding of the material at at least one angle at at least one position in the material flow direction of the conveying device 300 in this embodiment, reference can be made to the foregoing description of Figure 5 For the sake of brevity, it will not be repeated here.

[0112] Exemplarily, the material thickness detection module 200 can be installed by opening a hole at the top 304 in the material flow direction of the conveying device 300, and after opening the hole, an isolation plate is used for isolation to prevent the material from contacting the material thickness detection module 200, causing wear to the material thickness detection module 200 and reducing the replacement cost and failure rate. The isolation plate can be a wear-resistant plastic plate, a ceramic plate, or glass, etc., to ensure that the material thickness detection module 200 can transmit and receive measurement signals through the isolation plate.

[0113] Exemplarily, in the case where there is no material in the chute device 300, the distance between the bottom 306 and the top 304 of the chute device 300 can be pre-calibrated. Then, after determining the clearance height between the material at a certain angle at a position in the chute device 300 and the top 304, the result obtained by subtracting the clearance height between the material and the top 304 from the distance between the bottom 306 and the top 304 is the thickness of the material at that angle at the third position. If there is no material hanging at that position and at that angle, the thickness of the material at that angle at the third position is the thickness of the flowing material. If there is material hanging at that position and at that angle, the thickness of the flowing material can be obtained by subtracting the hanging material thickness from the thickness of the material at that position and at that angle.

[0114] For the visualization material hanging detection and management system of the chute device in the above embodiment, the material thickness detection module 200 is installed at the top 304 of the chute device 300, which is convenient for maintenance and calibration, helps to avoid the material thickness detection module 200 directly contacting the material, and prolongs the service life of the material thickness detection module 200. At the same time, it helps to improve the accuracy of detecting the thickness of the material.

[0115] Regarding the volume flow rate of the chute material, as a second possible embodiment, the visualization material hanging detection and management system of the chute device may further include at least one speed sensor 500, and at least one speed sensor 500 is installed at a position near the material thickness detection module 200, such as Figure 6 shown, the speed sensor 500 is used to detect the flow velocity of the material in the chute device 300 at the installation position, and can also be used as the average flow velocity of the entire material in the chute device 300. Correspondingly, the average flow velocity of the entire material in the chute device 300 combined with the thickness of the material detected by the material thickness detection module 200 determines the volume flow rate information of the material flowing at a position in the chute device 300, and the volume flow rate information of the material flowing at the position is used to determine the volume flow rate of the chute material. Alternatively, the flow velocity of the material in the chute device 300 at the installation position combined with the thickness of the material detected by the material thickness detection module 200 determines the volume flow rate of the chute material at the installation position.

[0116] Exemplarily, according to the thickness of the material detected by the material thickness detection module 200 and the dimensions of the chute device, the cross-sectional area of the material in the chute device 300 can be determined, and then the product value of the cross-sectional area and the average flow velocity can be used as the volume flow rate of the chute material.

[0117] The visual hanging material detection and management system for the chute feeding device of the above embodiment detects the material volume flow information of the material flowing in the chute feeding device 300 through at least one speed sensor 500 installed near the material thickness detection module 200, which can more accurately reflect the material distribution and flow state, reduce misjudgment caused by local abnormalities (such as accumulation), improve the accuracy of the obtained material volume flow of the chute feeding material, is applicable to scenarios where the material flow is uneven, and improves the robustness of the visual hanging material detection and management system for the chute feeding device.

[0118] In some embodiments of the present disclosure, the number of speed sensors 500 and the number of material thickness detection modules 200 are both multiple. The multiple material thickness detection modules 200 are installed at different positions on the top 304 in the material flow direction of the chute feeding device 300, and the multiple speed sensors 500 are respectively installed near the multiple material thickness detection modules 200.

[0119] The number of speed sensors 500 and the number of material thickness detection modules 200 may be equal or unequal. When the number of speed sensors 500 and the number of material thickness detection modules 200 are unequal, the number of material thickness detection modules 200 may be more than the number of speed sensors 500.

[0120] Determine the material volume flow of the chute feeding material at multiple positions and obtain the material volume flow of the entire material in the chute feeding device 300 according to the flow velocity of the material in the chute feeding device 300 at multiple positions detected by the multiple speed sensors 500 and the thickness of the material at multiple positions detected by the multiple material thickness detection modules 200.

[0121] In the visual hanging material detection and management system for the chute feeding device of the above embodiment, the multiple speed sensors 500 and the material thickness detection modules 200 are distributed along the material flow direction. Thus, multi-point detection is realized, which is beneficial to triggering the hanging material judgment in a timely manner, and thus is beneficial to discovering the hanging material situation in a timely manner, and improves the perception ability of the hanging material detection and management system for abnormalities.

[0122] In some embodiments of the present disclosure, the material volume flow of the chute feeding material at multiple positions is respectively compared with the input material volume flow to judge whether there is hanging material at multiple positions in the chute feeding device 300 and whether the material flow is smooth; the material volume flow of the entire material in the chute feeding device 300 is compared with the input material volume flow to obtain whether there is hanging material in the chute feeding device 300 and whether the material is smooth.

[0123] The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0124] Exemplarily, the volume flow rate of the chute-fed material at each of multiple positions can be compared with the volume flow rate of the input material respectively. If the volume flow rate of the chute-fed material at a position is less than the volume flow rate of the input material by a certain value, it can be determined that the material flow at that position is not smooth; otherwise, it is determined that the material flow at that position is smooth. Alternatively, the volume flow rate of the chute-fed material of the entire material is compared with the volume flow rate of the input material. If the volume flow rate of the chute-fed material of the entire material is less than the volume flow rate of the input material by a certain value, it can be determined that the material flow in the chute device 300 is not smooth; otherwise, it is determined that the material flow in the chute device 300 is smooth.

[0125] According to the volume flow rate of the chute-fed material at each position (or the volume flow rate of the chute-fed material of the entire material), the thickness of the material, and the foregoing first mapping relationship, the hanging material situation at each position (or in the entire chute device 300) can be determined, that is, whether hanging material occurs at each position (or in the entire chute device 300) and the first hanging material thickness. The specific implementation manner can refer to the foregoing description of determining whether hanging material occurs in the chute device 300. For the sake of brevity, it will not be elaborated here.

[0126] The chute device visual hanging material detection and management system of the above embodiment can determine the hanging material situation at each position in the chute device 300 or in the entire chute device 300 more precisely and quickly, and judge whether the material flow at each position in the chute device 300 or in the entire chute device 300 is smooth, so as to provide more refined data support for understanding the material chute situation in the chute device 300, which is beneficial to more accurately controlling the input material of the chute device 300 and cleaning the material attached to the chute device 300.

[0127] In some embodiments of the present disclosure, according to the volume flow rate of the input material and the thickness of the material at different positions, combined with the mapping relationship between the volume flow rate of the input material and the thickness of the material when no hanging material occurs in the chute device 300, it is judged whether hanging material occurs in the chute device 300, whether hanging material occurs at different positions, and the hanging material thickness at different positions is determined.

[0128] The chute device visual hanging material detection and management system of the above embodiment can determine the hanging material situation at each position in the chute device 300 more precisely and quickly, so as to provide more refined data support for understanding the material chute situation in the chute device 300, which is beneficial to more accurately controlling the input material of the chute device 300 and cleaning the material attached to the chute device 300.

[0129] Regarding the volume flow rate of the chute-fed material, as a third possible embodiment, the material thickness detection module is used to obtain and output the thickness of the material at the first position in the chute device. The material thickness at the first position is used to determine the hanging material thickness and the flowing material thickness at the first position. Correspondingly, please combineFigure 7 The visual hanging material detection and management system for the chute conveying equipment may further include at least one layered flow velocity meter 600. The layered flow velocity meter 600 is used to detect the flow velocity of materials at different thicknesses at at least one second position in the chute conveying equipment 300, and is used to determine whether it is a hanging material static state or a material flowing state at different thicknesses at at least one second position according to the flow velocity of materials at different thicknesses at at least one second position in the chute conveying equipment 300, so as to obtain the hanging material thickness, material thickness, flowing material thickness at at least one second position, the volume flow rate of the chute conveying materials at at least one second position, and the volume flow rate of the chute conveying materials of the entire materials in the chute conveying equipment 300.

[0130] The first position may be the installation position of the material thickness detection module or the point monitored by the material thickness detection module. The second position may be the installation position of the layered flow velocity meter or the velocity measurement probe of the layered flow velocity meter, or the point monitored by the layered flow velocity meter or the velocity measurement probe of the layered flow velocity meter. When there are multiple first positions or second positions, the first position and the second position may be completely the same, not completely the same, or completely different. Exemplarily, the installation positions of the material thickness detection module and the layered flow velocity meter may have differences in the front, back, left, and right directions, but the points monitored by the material thickness detection module and the layered flow velocity meter may be the same position, that is, the first position is the same as the second position.

[0131] One layered flow velocity meter 600 may include P velocity measurement probes. The P velocity measurement probes are arranged at different thicknesses of the chute conveying equipment 300, and then the flow velocity of materials at different thicknesses in the chute conveying equipment 300 is detected through the P velocity measurement probes, where P is an integer greater than 1. In one example, one layered flow velocity meter 600 includes 3 velocity measurement probes (as shown by the green rectangles in Figure 8 ), and the 3 velocity measurement probes are respectively arranged at different thicknesses at the same second position w2 in the material flow direction H. In another example, one layered flow velocity meter 600 includes 3 velocity measurement probes (as shown by the green rectangles in Figure 9 ), and the 3 velocity measurement probes are respectively arranged at different thicknesses at different second positions (w3, w4, w5) in the material flow direction H. It can be understood that the more the number of velocity measurement probes in the layered flow velocity meter 600, the higher the resolution of the layered flow velocity meter 600, and the more accurate the flow velocity of materials at different thicknesses detected in the chute conveying equipment 300.

[0132] Exemplarily, since the flow velocity of the air in the upper layer of the material in the chute conveying device 300 is basically 0, therefore, by analyzing the flow velocity of the material at different thicknesses in the chute conveying device 300 to determine the thickness critical point at which the flow velocity changes from greater than 0 to basically 0, the thickness of the material at the second position can be determined; by analyzing at which thicknesses in the chute conveying device 300 the flow velocity of the material is 0 (or a set velocity close to 0), the hanging material thickness at the second position can be determined, and then subtracting the hanging material thickness at the second position from the thickness of the material at the second position can obtain the flowing material thickness at the second position. According to the flowing material thickness at the second position, the size of the chute conveying device, and the flow velocity of the material, the volume flow rate of the conveyed material of the entire material in the chute conveying device 300 and the volume flow rate of the conveyed material of the material at each second position can be calculated.

[0133] It can be understood that in the present disclosure, data at other positions, other angles, and other thicknesses among different detection positions, different detection angles, and different detection thicknesses can be obtained by interpolation or simulation based on adjacent detection positions, adjacent detection angles, and adjacent detection thicknesses.

[0134] The hanging material detection and management system of the above-described embodiment can detect the flow velocity of the material at different thicknesses at at least one second position in the chute conveying device 300 through at least one layer flow velocity meter 600, can more accurately reflect the material distribution and flow state, reduce misjudgment caused by local anomalies (such as accumulation), improve the accuracy of the obtained volume flow rate of the conveyed material, is applicable to scenarios where the material flow is uneven, and improves the adaptability of the visual hanging material detection and management system of the chute conveying device to complex working conditions.

[0135] In some embodiments of the present disclosure, the number of layer flow velocity meters 600 is P, and the P layer flow velocity meters 600 are installed at different second positions in the material flow direction in the chute conveying device 300; according to the flow velocity of the material at different thicknesses and the thickness of the material at different second positions in the chute conveying device 300, the hanging material thickness, the thickness of the material, and the flowing material thickness at different second positions are obtained, and according to the flowing material thickness, the flow velocity of the material, and the size of the chute conveying device at each second position, the volume flow rate Q of the conveyed material at each second position is determined. 5-1 to Q 5-P , and the volume flow rates Q of the conveyed material at each second position are accumulated. 5-1 to Q 5-P to verify the accuracy of the input material volume flow rate; it can also verify the accuracy of the input material volume flow rate according to the volume flow rates of the conveyed material at each second position respectively.

[0136] Exemplarily, if Q 5-1 to Q 5-PIf the difference between the accumulated volume flow rate of the chute-fed material and the input material volume flow rate (which can be the accumulated input material volume flow rate over a period of time) is greater than a preset difference threshold, it can be determined that there is a large deviation in the detected value of the input material volume flow rate; otherwise, it can be determined that the input material volume flow rate is accurate. In the case where there is a large deviation in the detected value of the input material volume flow rate, the volume flow rate of the chute-fed material obtained by accumulating Q 5-1 to Q 5-P can be used as the input material volume flow rate to participate in the subsequent hanging material detection, thereby improving the accuracy of the hanging material detection. Alternatively, at the same moment, if the difference between a certain second position and the input material volume flow rate is greater than a preset difference threshold, it can be determined that there is a large deviation in the detected value of the input material volume flow rate.

[0137] In the visual hanging material detection and management system for the chute feeding device of the above embodiment, multiple stratified flow meters 600 are distributed along the material flow direction. Thus, multi-point detection is achieved, which is beneficial to verifying the accuracy of the input material volume flow rate, and thus is beneficial to promptly discovering the situation where the input material volume flow rate is inaccurate, improving the accuracy of the hanging material detection.

[0138] In some embodiments of the present disclosure, according to the thickness of the flowing material and / or the hanging material thickness at each second position in the chute feeding device 300, when there is no hanging material in the chute feeding device 300 and the thickness of the flowing material at the second position is different from or the difference is greater than the thickness threshold compared with the thickness of the flowing material at the first position, the mapping relationship between the input material volume flow rate and the thickness of the material without hanging material in the chute feeding device 300 determined in advance is corrected based on the thickness of the flowing material at the second position; and when there is hanging material in the chute feeding device 300 and the hanging material thickness at the second position is different from or the difference is greater than the thickness threshold compared with the hanging material thickness at the first position, the mapping relationship between the input material volume flow rate, the thickness of the material, and the hanging material thickness in the chute feeding device 300 determined in advance when there is hanging material is corrected based on the hanging material thickness at the second position. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program. The thickness threshold can be set in advance according to actual requirements.

[0139] Since the thickness of the flowing material at the second position and the thickness of the adhering material at the second position are determined based on the actual flow velocities of the material at different thicknesses in the chute device 300, rather than being predicted based on a mapping relationship as in the case of the thickness of the flowing material at the first position and the thickness of the adhering material at the first position, the accuracy of the thickness of the flowing material at the second position and the thickness of the adhering material at the second position is higher than that of the thickness of the flowing material at the first position and the thickness of the adhering material at the first position. Therefore, correcting the above-mentioned mapping relationship based on the thickness of the flowing material at the second position and the thickness of the adhering material at the second position is conducive to improving the accuracy and reliability of the adhering material detection result.

[0140] For the visualization adhering material detection and management system of the chute device in the above-mentioned embodiment, the mapping relationship when no adhering material occurs and the mapping relationship when adhering material occurs are respectively corrected according to the flow velocities of the material at different thicknesses in the chute device 300 output by the hierarchical flow velocity meter 600, so that the corrected mapping relationship is closer to the actual working conditions, reducing the misjudgment of adhering material caused by the deviation of the initial assumption, and improving the accuracy of the long-term use of the adhering material detection and management system. At the same time, since the correction is automatically realized, it is equivalent to introducing a self-learning mechanism, enabling the adhering material detection and management system to have a certain intelligent adjustment ability and extending the applicable period.

[0141] In some embodiments of the present disclosure, the actual chute allowance is determined according to the thickness of the adhering material; the ratio of the actual chute allowance to the volume flow rate threshold when the chute device conveys the material is used as the actual flow-through capacity value of the chute device; and the feeding speed and / or the feeding volume flow rate during the feeding process to the chute device are controlled according to the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value, where the percentage is obtained from the actual flow-through capacity value and the desired flow-through capacity value. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0142] The chute allowance can be understood as the size of the space in the chute device 300 that is not occupied by the material or the proportion of the space in the chute device 300 that is not occupied by the material in the entire space of the chute device 300. For example, if 40% of the space in the chute device 300 is already occupied by the material, the chute allowance can be 60%.

[0143] It should be noted that the specific values mentioned above are only used as examples to illustrate the implementation of the present disclosure in detail and should not be construed as a limitation of the present disclosure. In other examples or embodiments or examples, other values can be selected according to the present disclosure, and no specific limitation is made here.

[0144] Exemplarily, the actual chute conveying allowance corresponding to the hanging material thickness can be determined based on the mapping relationship between the hanging material thickness and the actual chute conveying allowance. The hanging material thickness at the first position can be used, or the hanging material thickness at the second position, or the average hanging material thickness at multiple first positions, or the average hanging material thickness at multiple second positions, or the average hanging material thickness at the first and second positions can be used.

[0145] The volume flow threshold when the chute conveying equipment conveys materials can be the maximum value of the volume flow when the chute conveying equipment conveys materials, or a value set artificially that is less than the maximum value of the volume flow when the chute conveying equipment conveys materials. Exemplarily, the percentage of the decrease in the actual flow-through capacity value = (desired flow-through capacity value - actual flow-through capacity value) / desired flow-through capacity value × 100%.

[0146] Exemplarily, the feeding equipment is used to put materials, and the belt is used to convey the materials put by the feeding equipment to the inlet 302 of the chute conveying equipment 300. Correspondingly, the feeding speed of the feeding equipment and / or the conveying speed of the belt can be controlled according to the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value to control the feeding speed during the feeding process to the chute conveying equipment 300. The feeding speed can be understood as the amount of materials given by the feeding equipment per unit time. The conveying speed can be understood as the belt rotation speed. The feeding speed can be understood as the weight of the materials put into the chute conveying equipment 300 per unit time. The feeding volume flow can be understood as the volume of the materials put into the chute conveying equipment 300 per unit time.

[0147] The chute conveying equipment visual hanging material detection and management system of the above embodiments can dynamically control the feeding speed and / or the feeding volume flow during the feeding process to the chute conveying equipment 300 based on the hanging material thickness, so as to accurately feed materials, avoid blockage caused by overfeeding, improve the conveying efficiency, reduce equipment wear or failures caused by aggravated hanging materials, and enhance the economy of the production process.

[0148] In some embodiments of the present disclosure, the feeding speed and / or the feeding volume flow rate during the feeding process to the chute conveying device 300 are controlled according to the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value, including: when the actual flow-through capacity value is less than the first threshold and / or the percentage decrease in the actual flow-through capacity value is greater than or equal to the second threshold, controlling the feeding speed during the feeding process to the chute conveying device 300 at the first feeding speed and / or the feeding volume flow rate at the first feeding volume flow rate; and when the actual flow-through capacity value is greater than or equal to the first threshold and / or the percentage is less than the second threshold, controlling the feeding speed during the feeding process to the chute conveying device 300 at the second feeding speed and / or the feeding volume flow rate at the second feeding volume flow rate, where the second feeding speed is greater than the first feeding speed and / or the second feeding volume flow rate is greater than the first feeding volume flow rate. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0149] The first feeding speed and the first feeding volume flow rate can be a fixed value respectively, such as 0 or a set feeding speed close to 0; the first feeding speed and the first feeding volume flow rate can also be dynamic values adjusted according to the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value, which is not limited herein.

[0150] The second feeding speed and the second feeding volume flow rate can be a fixed value respectively, such as a set feeding speed greater than 0; the second feeding speed and the second feeding volume flow rate can also be dynamic values adjusted according to the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value, which is not limited herein.

[0151] The chute conveying device visual hanging material detection and management system of the above embodiment dynamically controls the feeding speed and / or the feeding volume flow rate during the feeding process to the chute conveying device 300 according to the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value, realizes a quick response to different hanging material degrees, ensures the system stability, reduces the risk of further deterioration of the hanging material, and buys time for subsequent cleaning.

[0152] Please combine Figure 10 In some embodiments of the present disclosure, the chute conveying device visual hanging material detection and management system may further include a material cleaning module 700. The material cleaning module 700 is used to clean the material in the chute conveying device 300 when the actual flow-through capacity value is less than the first threshold and / or the percentage decrease in the actual flow-through capacity value is greater than or equal to the second threshold, and / or the hanging material thickness is greater than or equal to the third threshold; or clean the material in the chute conveying device 300 based on a set period.

[0153] The material cleaning module 700 can be installed at the bottom 306 of the chute device 300. The number of the material cleaning modules 700 can be one or more. Multiple material cleaning modules 700 can be arranged at equal intervals or non-equal intervals at the bottom 306 of the chute device 300, or can be respectively arranged at the positions where material hanging is likely to occur at the bottom 306 of the chute device 300, which is not limited herein.

[0154] Exemplarily, the material blockage cleaning module can adopt the method of gas blockage cleaning, such as Figure 11 As shown, the material blockage cleaning module can include a gas valve 701, a gas storage pressure tank 702, a filter 703, a gas delivery pipeline 704 and a gas probe 705. The gas probe 705 can be installed at the bottom 306 of the chute device 300. During the process of cleaning the material in the chute device 300, the third MCU can open the gas valve 701, so that the gas in the gas storage pressure tank 702 enters the filter 703 through the gas delivery pipeline 704 for moisture filtration, to avoid the increase of the viscosity of the material after the moisture in the gas enters the chute device 300. The filtered gas reaches the gas probe 705 through the gas delivery pipeline 704, and then diverges in a circular or linear manner to loosen the attached material in the chute device 300 and facilitate the flow of the material.

[0155] For the chute device visual material hanging detection and management system of the above embodiment, the material in the chute device 300 is automatically cleaned by the material cleaning module 700, thereby reducing the need for manual cleaning, improving the operation efficiency and reducing the safety risk. At the same time, when the actual flow-through capacity value is less than the first threshold and / or the percentage of the decrease in the actual flow-through capacity value is greater than or equal to the second threshold and / or the material hanging thickness is greater than or equal to the third threshold, or regularly cleaning the material in the chute device 300 is beneficial to removing the material attached to the chute device 300, thereby avoiding the influence of material hanging on the equipment performance, prolonging the service life of the equipment, ensuring the long-term stable operation of the system and reducing sudden failures.

[0156] In some embodiments of the present disclosure, after the material cleaning module 700 cleans the material in the chute device 300, the material hanging thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value are re-determined; and the cleaning effect of the material cleaning module 700 is determined according to the re-determined material hanging thickness and / or the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity value. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0157] The visualization hanger detection and management system for the chute conveying equipment of the above embodiments can automatically evaluate the cleaning effect of the material cleaning module 700 according to the re-determined hanger thickness and / or the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value after the material cleaning module 700 cleans the material in the chute conveying equipment 300, thereby forming a closed-loop process of detection-cleaning-evaluation, and improving the reliability and controllability of the system. In addition, by evaluating the cleaning effect of the material cleaning module 700, it is possible to determine whether the cleaning reaches the expected goal, and further provide data support for subsequent material cleaning and material conveying.

[0158] In some embodiments of the present disclosure, the visualization hanger detection and management system for the chute conveying equipment may further include a display. The display is at least used to display one or more of the input material volume flow rate, the thickness of the flowing material at the first position, the hanger thickness at the second position, the hanger detection result, the hanger thickness at the first position, the thickness of the flowing material at the second position, the volume flow rate of the chute conveying material at each second position, the volume flow rate of the chute conveying material at each angle at each second position, the actual chute conveying margin, the actual flow-through capacity value, and the percentage decrease in the actual flow-through capacity value.

[0159] Exemplarily, the display colors of different values of the flowing material thickness may be different, and the display colors may be preset by the operator or default set by the system.

[0160] The visualization hanger detection and management system for the chute conveying equipment of the above embodiments displays the detection results and relevant parameters of the hanger detection and management system through the display, so that the detection results and relevant parameters of the hanger detection and management system are obtained, which is convenient for the operator to monitor and make decisions.

[0161] In some embodiments of the present disclosure, the visualization hanger detection and management system for the chute conveying equipment may further include an outlet volume flow rate detection module. The outlet volume flow rate detection module is used to output the volume flow rate information of the material at the outlet of the chute conveying equipment 300; correspondingly, the outlet material volume flow rate can be determined according to the volume flow rate information of the material at the outlet of the chute conveying equipment 300, and whether the material flow is smooth can be judged according to the input material volume flow rate and the outlet material volume flow rate. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0162] Exemplarily, the outlet volume flow rate detection module may include any one of a belt scale, a three-dimensional lidar, or a three-dimensional material profile measuring instrument, or the outlet volume flow rate detection module may include a two-dimensional lidar or a two-dimensional material profile measuring instrument. The principle of the outlet volume flow rate detection module for determining the outlet material volume flow rate can refer to the principle of the volume flow rate detection module for determining the input material volume flow rate above. For the sake of brevity, it will not be elaborated here.

[0163] Exemplarily, if the difference between the input material volume flow rate and the output material volume flow rate is less than the set threshold value, it can be determined that the material flow is smooth; if the difference between the input material volume flow rate and the output material volume flow rate is greater than or equal to the set threshold value, it can be determined that the material flow is not smooth.

[0164] The visual hanging material detection and management system for the chute conveying equipment in the above embodiment can judge whether the material flow is smooth based on the input material volume flow rate and the output material volume flow rate, which is beneficial to triggering the hanging material judgment in a timely manner, thereby facilitating the timely discovery of the hanging material situation and improving the perception ability of the hanging material detection and management system for abnormalities.

[0165] In some embodiments of the present disclosure, when the chute conveying equipment 300 stops conveying materials, the thickness of the material output by the material thickness detection module 200 is obtained; it is judged whether the chute conveying equipment 300 has hanging materials according to the thickness of the material; and when it is determined that the chute conveying equipment 300 has hanging materials, the hanging material thickness is determined according to the thickness of the material, for example, the thickness of the material at this time is used as the hanging material thickness. The steps of this embodiment can be implemented by any one of the first MCU, the second MCU, the third MCU, and the host computer by executing a computer program.

[0166] In this way, hanging materials can still be detected when the chute conveying equipment 300 stops conveying materials, which can further make up for the deficiencies of dynamic detection, ensure comprehensive monitoring of the hanging material phenomenon, and avoid failures caused by residual hanging materials not being detected during the next startup. At the same time, it provides an accurate basis for cleaning or maintenance during shutdown, reducing blind operations.

[0167] In summary, in some embodiments of the present disclosure, it is possible to detect the degree of material hanging and the material flow velocity in the chute device under the condition of material flow, and combine with the structural dimensions of the chute device to obtain the chute allowance of the material inside the chute device. According to the obtained chute allowance and the ratio with the volume flow threshold when the chute device conveys materials, the actual flow-through capacity value and the percentage of the decrease in the actual flow-through capacity of the chute device are obtained. Then, according to the actual flow-through capacity value and / or the percentage of the decrease in the actual flow-through capacity, the feeding speed and the feeding volume flow rate during the feeding process into the chute device are controlled to achieve linkage, avoiding the blockage caused by the incoming material flow exceeding the actual flow-through capacity at this time, thereby reducing the occurrence of blockage accidents, increasing the continuous use time of the chute device, and improving productivity. In addition, by comparing the actual flow-through capacity and / or the percentage of the decrease in the actual flow-through capacity with a certain threshold, it is also possible to remind the staff to perform operations such as cleaning, stopping transportation, and feeding, avoiding safety accidents and material waste. In addition, according to the detected material thickness, the hanging thickness at different positions, the material flow velocity, etc., a three-dimensional visualization inside the chute device can be formed, intuitively reflecting or prompting the cleaning position of the staff and the cleaning workload at different positions.

[0168] Figure 12 Fig. shows a structural schematic block diagram of a visualization hanging material detection and management system for a chute device according to another embodiment of the present disclosure. As Figure 12 shown, the visualization hanging material detection and management system for the chute device according to the embodiment of the present disclosure includes: at least one material detection module 800, and the material detection module 800 is used to detect and output the first chute material information in the chute device 300, and the first chute material information includes one or more of the material flow velocity at different thicknesses, the chute material volume flow rate, the material thickness, the hanging material thickness, and the flowing material thickness; and determine whether the chute device 300 has hanging material and determine the target hanging material thickness according to the first chute material information.

[0169] The steps of determining whether the chute device 300 has hanging material and determining the target hanging material thickness according to the first chute material information can be implemented by the fourth MCU in the material detection module 800 by executing a computer program, or by the fifth MCU connected to the material detection module 800 and independent of the material detection module 800 by executing a computer program. Other steps of the embodiment of the present disclosure can also be implemented by the fourth MCU or the fifth MCU by executing a computer program.

[0170] As a possible implementation, the first chute conveying material information includes the material flow velocity at different thicknesses. When there is a material flow velocity less than or equal to the material flow velocity threshold, it is determined that the chute conveying device 300 is clogged, and the thickness corresponding to the material flow velocity less than or equal to the material flow velocity threshold is used as the target clogging thickness. When there is no material flow velocity less than or equal to the material flow velocity threshold, it is determined that the chute conveying device 300 is not clogged.

[0171] As another possible implementation, the first chute conveying material information includes the volume flow rate of the conveyed material and the thickness of the material. When the difference obtained by subtracting the thickness of the material corresponding to the volume flow rate of the conveyed material in the case where the chute conveying device 300 is not clogged from the thickness of the material is greater than the set value, it is determined that the chute conveying device 300 is clogged, and the difference between the thickness of the material and the thickness of the material corresponding to the volume flow rate of the conveyed material in the case where the chute conveying device 300 is not clogged is used as the target clogging thickness. When the difference obtained by subtracting the thickness of the material corresponding to the volume flow rate of the conveyed material in the case where the chute conveying device 300 is not clogged from the thickness of the material is less than or equal to the set value, it is determined that the chute conveying device 300 is not clogged. The set value can be set according to the situation. For example, the set value can be 0.

[0172] As yet another possible implementation, the first chute conveying material information includes the clogging thickness. When the clogging thickness is greater than the set value, it is determined that the chute conveying device 300 is clogged, and the clogging thickness is used as the target clogging thickness. When the clogging thickness is less than or equal to the set value, it is determined that the chute conveying device 300 is not clogged.

[0173] As still another possible implementation, the first chute conveying material information includes the thickness of the material and the thickness of the flowing material. When the difference obtained by subtracting the thickness of the flowing material from the thickness of the material is greater than the set value, it is determined that the chute conveying device 300 is clogged, and the difference between the thickness of the material and the thickness of the flowing material is used as the target clogging thickness. When the difference obtained by subtracting the thickness of the flowing material from the thickness of the material is less than or equal to the set value, it is determined that the chute conveying device 300 is not clogged.

[0174] For the explanations of the volume flow rate of the conveyed material, the thickness of the material, the clogging thickness, and the thickness of the flowing material, reference can be made to the above description. For the sake of brevity, it will not be elaborated here.

[0175] The visual hanger detection and management system for the chute conveying equipment according to the embodiments of the present disclosure monitors the material flow in the chute conveying equipment 300 through a module. While simplifying the structure of the visual hanger detection and management system for the chute conveying equipment, it can accurately detect key parameters such as the material flow velocity, the volumetric flow rate of the chute conveying material, the material thickness, the hanger thickness, and the thickness of the flowing material, providing reliable data support for determining whether the chute conveying equipment 300 is hung up, helping to detect and handle the hanger problem in time, avoiding blockage and damage of the chute conveying equipment 300, improving the automation and intelligence level of the material conveying process, and laying a foundation for optimizing the production process and improving production efficiency. Moreover, by judging whether the chute conveying equipment 300 is hung up in various ways, it can flexibly adapt to the hanger detection requirements in various situations, improving the accuracy and reliability of the detection.

[0176] In some embodiments of the present disclosure, the material detection module 800 includes a stratified flow velocity meter. Based on the material flow velocities at different thicknesses obtained by detecting at least one position in the chute conveying equipment 300 with at least one stratified flow velocity meter, it is determined whether the state at different thicknesses at at least one position is a hanger static state or a material flowing state, so as to determine the hanger thickness, the material thickness, the thickness of the flowing material, the volumetric flow rate of the chute conveying material at at least one position, and the volumetric flow rate of the chute conveying material of the entire material in the chute conveying equipment 300.

[0177] Exemplarily, the installation position of the stratified flow velocity meter is known, that is, the thickness of the material at the installation position is known. Furthermore, the cross-sectional area of the material at different thicknesses can be estimated based on the dimensions of the chute conveying equipment at different thicknesses. Therefore, the volumetric flow rate of the chute conveying material at at least one position in the chute conveying equipment 300 and the volumetric flow rate of the chute conveying material of the entire material in the chute conveying equipment can be calculated through the cross-sectional area of the material at different thicknesses and the material flow velocities at different thicknesses.

[0178] Regarding the principle of the stratified flow velocity meter for determining the material thickness, the hanger thickness, and the thickness of the flowing material, reference can be made to the above description. For the sake of brevity, it will not be elaborated here.

[0179] The visual hanger detection and management system for the chute conveying equipment in the above embodiments uses a stratified flow velocity meter to detect the material flow velocities at different thicknesses, can comprehensively understand the flow state of the material in the chute conveying equipment 300, can accurately determine key parameters such as the hanger thickness, the material thickness, and the thickness of the flowing material, provides detailed data support for optimizing the material conveying process, helps to detect local hanger problems in time, and avoids the spread and enlargement of the hanger.

[0180] In some embodiments of the present disclosure, the stratified flow velocity meter has a plurality of velocity measurement probes, and the plurality of velocity measurement probes are distributed in the material thickness direction, such as Figure 8 or Figure 9 as shown.

[0181] The content related to the speed measurement probe can be referred to the above description. For the sake of brevity, it will not be repeated here.

[0182] For the visualization hanging material detection and management system of the chute equipment in the above embodiment, the design of multiple speed measurement probes enables the stratified flowmeter to more accurately detect the material flow velocity at different thicknesses, improving the accuracy and resolution of the detection, and helping to more comprehensively understand the material flow situation.

[0183] In some embodiments of the present disclosure, it further includes: at least one material thickness detection module for obtaining and outputting the thickness of the material in the chute equipment 300; when the thickness of the material obtained by the material thickness detection module is greater than the thickness at which the multiple speed measurement probes of the stratified flowmeter are located, at least one stratified flowmeter obtains at least one hanging material thickness at at least one position, combines the thickness of the material obtained by at least one material thickness detection module, obtains the flowing material thickness at at least one position, and calculates the volume flow rate of the chute material at at least one position and the volume flow rate of the chute material of the entire material in the chute equipment 300. The content related to the material thickness detection module can be referred to the above description. For the sake of brevity, it will not be repeated here.

[0184] In Figure 13 In the example of, the visualization hanging material detection and management system of the chute equipment includes multiple material detection modules 800 and multiple material thickness detection modules 200, and the multiple material thickness detection modules 200 are installed on the top 304 of the chute equipment 300. The installation positions of the multiple material detection modules 800 may be different from the installation positions of the multiple material thickness detection modules 200.

[0185] When the thickness of the material obtained by the material thickness detection module 200 is greater than the thickness at which the multiple speed measurement probes of the stratified flowmeter are located, it indicates that the thickness of the material in the chute equipment 300 is relatively large, and the speed measurement probes near the top 304 of the chute equipment 300 in the stratified flowmeter are not sufficient to detect the flow situation of the material near the top 304 of the chute equipment 300. Therefore, in this case, the thickness of the material obtained by the material thickness detection module 200 shall prevail, rather than the thickness of the material detected by the speed measurement probes near the top 304 of the chute equipment 300 in the stratified flowmeter. When the thickness of the material obtained by the material thickness detection module 200 is less than or equal to the thickness at which the multiple speed measurement probes of the stratified flowmeter are located, if the number of probes in the stratified flowmeter is greater than the number threshold, that is, the resolution of the stratified flowmeter is high enough, the thickness of the material detected by the speed measurement probes in the stratified flowmeter or the thickness of the material obtained by the material thickness detection module 200 may prevail; if the number of probes in the stratified flowmeter is less than or equal to the number threshold, that is, the resolution of the stratified flowmeter is high enough, the thickness of the material obtained by the material thickness detection module 200 may prevail.

[0186] The visual hanging material detection and management system for the chute equipment of the above-described embodiment, in combination with the material thickness detection module 200 and the stratified flow velocity meter, can more accurately obtain the thickness and flow state information of the material, which helps to improve the accuracy of calculating the volume flow rate of the chute material and provides a more reliable data basis for hanging material detection and management.

[0187] In some embodiments of the present disclosure, the detection positions of the material thickness detection module 200 and the stratified flow velocity meter are the same.

[0188] In this way, the design that the detection positions of the material thickness detection module 200 and the stratified flow velocity meter are the same ensures the synchronization and consistency of the detection data, which helps to further improve the accuracy of calculating the volume flow rate of the chute material and reduces the errors caused by data mismatch. At the same time, it simplifies the layout and installation of the detection system and reduces the maintenance cost.

[0189] In some embodiments of the present disclosure, the number of stratified flow velocity meters is P, and the P stratified flow velocity meters are installed at different positions in the material flow direction of the chute equipment 300; according to the flow velocity of the material at different thicknesses at different positions in the chute equipment 300 and the thickness of the material, the hanging material thickness, the material thickness, and the flowing material thickness at different positions are obtained, and the volume flow rate Q of the chute material at each position is determined according to the flowing material thickness, the flow velocity of the material, and the dimensions of the chute equipment 300 5-1 to Q 5-P , and the volume flow rates Q of the chute material at each position are accumulated 5-1 to Q 5-P to obtain the volume flow rate of the chute material of the entire material of the chute equipment 300. P is an integer greater than 1.

[0190] The visual hanging material detection and management system for the chute equipment of the above-described embodiment can comprehensively understand the material transportation situation of the entire chute equipment 300 by detecting the flow states of the materials at different positions in the chute equipment 300 through multiple stratified flow velocity meters, which helps to timely detect the hanging material problems at different positions and provides detailed data support and decision-making basis for subsequent cleaning of the hanging materials.

[0191] In some embodiments of the present disclosure, it further includes: an outlet volume flow rate detection module for outputting the volume flow rate information of the material at the outlet of the chute equipment 300; determining the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the chute equipment 300, and judging whether the material flow in the chute equipment 300 is smooth according to the volume flow rates of the chute materials at different positions and the outlet material volume flow rate.

[0192] Exemplarily, the outlet volumetric flow rate detection module may include any one of a belt scale, a three-dimensional lidar, or a three-dimensional material profile measuring instrument. Alternatively, the outlet volumetric flow rate detection module may include a two-dimensional lidar or a two-dimensional material profile measuring instrument. The principle by which the outlet volumetric flow rate detection module determines the outlet material volumetric flow rate may refer to the principle by which the volumetric flow rate detection module determines the input material volumetric flow rate above. For the sake of brevity, it will not be elaborated here.

[0193] The volumetric flow rate of the entire material in the chute device 300 can be determined based on the volumetric flow rate information of the chute material at different positions. Furthermore, by comparing the volumetric flow rate of the entire material in the chute device 300 with the outlet material volumetric flow rate, it can be determined whether the material flow in the chute device 300 is smooth. Alternatively, the volumetric flow rate information of the chute material at different positions can be respectively compared with the outlet material volumetric flow rate to determine whether the material flow at different positions in the chute device 300 is smooth.

[0194] In one example, the number of layered flow velocity meters is 6, which are respectively arranged at the positions in the chute device 300 where material hanging is likely to occur, and the number of outlet volumetric flow rate detection modules is 1.

[0195] In the chute device visualization material hanging detection and management system of the above-described embodiment, the addition of the outlet volumetric flow rate detection module enables the system to comprehensively monitor the material flow in and at the outlet of the chute device 300. By comparing the volumetric flow rate of the chute material at different positions with the outlet material volumetric flow rate, it is possible to accurately determine whether the material flow is smooth, timely detect problems such as blockages, which helps to improve the stability and reliability of the material conveying process and reduce production losses caused by unsmooth material flow.

[0196] In some embodiments of the present disclosure, the actual chute allowance is determined according to the target material hanging thickness; the ratio of the actual chute allowance to the volumetric flow rate threshold when the chute device 300 conveys materials is used as the actual flow-through capacity value of the chute device 300; and the feeding speed and / or the feeding volumetric flow rate during the feeding process to the chute device 300 are controlled according to the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value. The percentage is obtained from the actual flow-through capacity value and the desired flow-through capacity value. The content related to this step can refer to the above description. For the sake of brevity, it will not be elaborated here.

[0197] In some embodiments of the present disclosure, it further includes: a material cleaning module, which is configured to clean the material in the chute device 300 when the actual flow-through capacity value is less than the first threshold and / or the percentage decrease in the actual flow-through capacity value is greater than or equal to the second threshold, and / or the target hanging material thickness is greater than or equal to the third threshold; or clean the material in the chute device 300 based on a set period. The content related to the material cleaning module can be referred to the above description. For the sake of brevity, it will not be elaborated here.

[0198] In some embodiments of the present disclosure, after the material cleaning module cleans the material in the chute device 300, the target hanging material thickness and / or the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value are re-determined; and the cleaning effect of the material cleaning module is determined according to the re-determined target hanging material thickness and / or the actual flow-through capacity value and / or the percentage decrease in the actual flow-through capacity value. The content related to this step can be referred to the above description. For the sake of brevity, it will not be elaborated here.

[0199] In some embodiments of the present disclosure, it further includes: a display, which is at least configured to display one or more of the volume flow rate of the chute material, the thickness of the flowing material, the hanging material detection result, the target hanging material thickness, the actual chute allowance, the actual flow-through capacity value, and the percentage decrease in the actual flow-through capacity value. The content related to the display can be referred to the above description. For the sake of brevity, it will not be elaborated here.

[0200] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0201] In the description of the present disclosure, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "a plurality" means two or more unless otherwise specifically defined.

[0202] In the description of the present disclosure, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0203] In the present disclosure, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0204] The disclosure herein provides many different embodiments or examples for implementing different structures of the disclosure. To simplify the disclosure of the present disclosure, components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. Further, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0205] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A visual material hanging detection and management system for conveying equipment, characterized in that: include: At least one volume flow detection module, the volume flow detection module is used to obtain and output the volume flow information of the material input to the conveying device, the input material volume flow information is used to determine the input material volume flow; At least one material thickness detection module, the material thickness detection module is used to obtain and output the thickness of the material in the chute device, and the material thickness is at least used to determine the thickness of the flowing material; Based on the volume flow rate of the input material, the thickness of the material and the predetermined mapping relationship between the volume flow rate of the input material and the thickness of the material when no material hanging occurs in the conveying device, it is determined whether material hanging occurs in the conveying device and the thickness of the hanging material is determined, and then the thickness of the flowing material is determined in combination with the thickness of the material. The hanging material thickness is the thickness of the material attached to the conveying device.

2. The visual material hanging detection and management system for conveying equipment according to claim 1 is characterized in that: Also includes: A mapping relationship between the volume flow rate of the input material, the thickness of the material and the thickness of the hanging material is determined when hanging material occurs on the conveying device.

3. The visual material hanging detection and management system for conveying equipment according to claim 1 is characterized in that: The volume flow detection module includes any one of a belt scale, a three-dimensional laser radar or a three-dimensional material profile measuring instrument, which is used to detect the volume flow of the material at the inlet of the chute device, and the volume flow of the material at the inlet of the chute device is used as the input material volume flow; Alternatively, the volume flow detection module includes a two-dimensional laser radar or a two-dimensional material profile measuring instrument, which is used to detect the cross-sectional area of ​​the material at the inlet of the conveying device. The cross-sectional area is combined with the material flow rate to obtain the input material volume flow information as the input material volume flow rate. The material flow rate includes the belt conveying speed at the inlet of the conveying device detected by the belt speed sensor or the speed obtained by the speed sensor of the conveying device itself at the inlet of the conveying device or the speed encoder of the belt itself at the inlet of the conveying device.

4. The visual material hanging detection and management system for conveying equipment according to claim 1 is characterized in that: The volume flow detection module includes at least one first speed and distance measuring sensor, the first speed and distance measuring sensor having at least one detection angle, for detecting the cross-sectional area and material flow velocity of the material at the entrance of the chute device, and calculating the input material volume flow information as the input material volume flow; Optionally, the visual material hanging detection and management system for the conveying equipment further comprises: at least one second speed and distance measuring sensor, installed at the top of the material flow direction of the conveying equipment, for detecting the volume flow information of the material conveyed in the conveying equipment, and the volume flow information of the material conveyed is used to determine the volume flow of the conveying material; Optionally, the number of the second speed and distance measuring sensors is 1, and the second speed and distance measuring sensor has a detection angle, which is arranged at the top of the material flow direction of the conveying device to detect the thickness and material flow speed of the material at an angle at a position, and the thickness of the material corresponding to the angle at the position is taken as the average material thickness in the entire material width direction of the conveying device, and the material flow speed corresponding to the angle at the position is taken as the average material flow speed in the entire material flow direction of the conveying device, and the volume flow rate of the conveying material of the entire material in the conveying device is determined in combination with the size of the conveying device, or the thickness of the material corresponding to the angle at the position is taken as the average material thickness in the material width direction at the position in the conveying device, and the material flow speed corresponding to the angle at the position is taken as the average material flow speed in the material flow direction at the position in the conveying device, and the volume flow rate of the material at the position in the conveying device is determined in combination with the size of the conveying device; Optionally, the number of the second speed and distance measuring sensors is N, which are arranged at the top of the material flow direction of the chute to detect N positions, and each of the second speed and distance measuring sensors has a detection angle, which is used to detect the thickness of the material and the material flow speed at an angle at the N positions respectively; The thickness of the material corresponding to the angle at each position is taken as the average material thickness in the material width direction at each position, and the material flow speed corresponding to the angle at each position is taken as the average material flow speed in the material flow direction at each position. Combined with the size of the conveying equipment, the volume flow rate Q of the conveying material at N positions is determined. 2-1 To Q 2-N , accumulate the volume flow rate Q of the material at N positions 2-1 To Q 2-N Obtaining the volume flow rate of the entire material in the conveying device; Alternatively, the thickness of the material corresponding to each of the angles at the N positions is added up and averaged or weighted averaged as the average material thickness in the entire material width direction in the chute device, and the material flow speed corresponding to each of the angles at the N positions is added up and averaged or weighted averaged as the average material flow speed in the entire material flow direction in the chute device, and then the chute material volume flow rate of the entire material in the chute device is determined in combination with the size of the chute device; Optionally, the number of the second speed and distance measuring sensors is N, which are arranged at the top of the material flow direction of the chute to detect N positions, and each of the second speed and distance measuring sensors detects the thickness and material flow speed of the material at M angles; The thickness of the material corresponding to each angle at each position is taken as the average material thickness in the material width direction at each angle at each position, and the material flow velocity corresponding to each angle at each position is taken as the average material flow velocity in the material flow direction at each angle at each position. Combined with the size of the conveying equipment, the volume flow rate Q of the conveying material at each angle at each position is determined. 3-1-1 To Q 3-N-M At each of the positions, the volume flow rate of the material being transported at M angles is accumulated to obtain the volume flow rate Q of the material being transported at N positions. 3-1 To Q 3-N , and then add up the volume flow rate Q of the material at the N positions 3-1 To Q 3-N Obtaining the volume flow rate of the entire material in the conveying device; Alternatively, the thicknesses of the materials corresponding to the M angles are accumulated at each position, and then the average or weighted average is calculated as the average material thickness in the material width direction at each position; the material flow speeds corresponding to the M angles are accumulated at each position, and then the average or weighted average is calculated as the average material flow speed in the material flow direction at each position; the volume flow rate of the chute material at the N positions is determined in combination with the size of the chute equipment; and the volume flow rate of the chute material at the N positions is accumulated to obtain the volume flow rate of the chute material of the entire material in the chute equipment; Alternatively, directly add up the volume flow rate Q of the material being transported at each position and each angle. 3-1-1 To Q 3-N-M Obtaining the volume flow rate of the entire material in the conveying device; Optionally, the volume flow rate Q of the material being transported at N positions and M angles within a fixed time T is 3-1-1 To Q 3-N-M By comparing with the volume flow of the input materials in a fixed time Z, the hanging material conditions at the N positions and the M angles are obtained, and it is determined whether the materials at the N positions and the M angles flow smoothly, wherein T is greater than Z; Optionally, the volume flow rate of the conveying material is compared with the volume flow rate of the input material to determine whether the material flow in the conveying device is smooth and whether there is material hanging; Optionally, the material thickness detection module includes any one of a microwave radar, an ultrasonic rangefinder, a laser rangefinder, and a laser radar. The material thickness detection module is installed at the top of the material flow direction of the chute device. The material thickness detection module is used to detect the height between the material and the top at at least one angle at at least one position in the material flow direction of the chute device, and then calculate the thickness of the material in combination with the relative position of the bottom of the chute device and the material thickness detection module. The thickness of the material is determined by combining the input material volume flow rate to determine the thickness of the flowing material. Optionally, the visual material hanging detection and management system of the conveying equipment further comprises: at least one speed sensor, at least one of the speed sensors is installed near the material thickness detection module, the speed sensor is used to detect the flow speed of the material in the conveying equipment at the installation position, and the volume flow information of the material conveyed in the conveying equipment is determined in combination with the thickness of the material detected by the material thickness detection module, and the volume flow information of the material conveyed is used to determine the volume flow of the conveying material; Optionally, the number of the speed sensors and the number of the material thickness detection modules are respectively multiple, the multiple material thickness detection modules are installed at different positions on the top of the material flow direction in the chute device, and the multiple speed sensors are respectively installed at positions near the multiple material thickness detection modules; The number of the speed sensors and the number of the material thickness detection modules are equal or different; Determine the volume flow rate of the chute material at multiple positions according to the flow speed of the material in the chute device at multiple positions detected by multiple speed sensors and the thickness of the material at multiple positions detected by multiple material thickness detection modules, and obtain the volume flow rate of the chute material of the entire material in the chute device; Optionally, the volume flow rates of the conveying materials at multiple positions are respectively compared with the volume flow rate of the input materials to determine whether there is material hanging at multiple positions in the conveying device and whether the material flow is smooth; the volume flow rate of the conveying materials of the entire material in the conveying device is compared with the volume flow rate of the input materials to determine whether there is material hanging in the conveying device and whether the material flow is smooth; Optionally, according to the input material volume flow rate, the thickness of the material at the different positions, and the mapping relationship between the input material volume flow rate and the material thickness when no material hanging occurs in the conveying device, it is determined whether the conveying device has material hanging, whether the material hanging occurs at the different positions, and the thickness of the hanging material at the different positions; Optionally, the material thickness detection module is used to obtain and output the thickness of the material at the first position in the chute device, and the thickness of the material at the first position is used to determine the thickness of the hanging material and the thickness of the flowing material at the first position; The visual material hanging detection and management system of the conveying equipment also includes at least one stratified flow meter, which is used to detect the flow velocity of the material at different thicknesses at at least one second position in the conveying equipment, and is used to determine whether the material hanging at different thicknesses at the second position is in a static state or a material flowing state according to the flow velocity of the material at different thicknesses at the second position in the conveying equipment, so as to obtain the hanging material thickness at the second position, the material thickness, the flowing material thickness, the volume flow rate of the conveying material at the second position, and the volume flow rate of the conveying material of the entire material of the conveying equipment; Optionally, the number of the stratified flowmeters is P, and the P stratified flowmeters are installed at different second positions in the material flow direction of the conveying device; according to the flow velocity of the material at different thicknesses at different second positions in the conveying device and the thickness of the material, the hanging material thickness, the material thickness, and the flowing material thickness at different second positions are obtained, and the volume flow rate Q of the conveying material at each second position is determined according to the flowing material thickness at each second position, the flow velocity of the material and the size of the conveying device. 5-1 To Q 5-P , accumulate the volume flow rate Q of the material transported at each second position 5-1 To Q 5-P Then verify the accuracy of the input material volume flow rate; verify the accuracy of the input material volume flow rate according to the volume flow rate of the conveying material at each second position; Optionally, according to the thickness of the flowing material and / or the thickness of the hanging material at each second position in the conveying device, when no hanging material occurs in the conveying device and the thickness of the flowing material at the second position is different from the thickness of the flowing material at the first position or the difference is greater than a thickness threshold, the predetermined mapping relationship between the input material volume flow rate and the material thickness when no hanging material occurs in the conveying device is corrected based on the thickness of the flowing material at the second position; and In the case where material hanging occurs on the conveying device, and the thickness of the hanging material at the second position is different from the thickness of the hanging material at the first position or the difference is greater than the thickness threshold, the mapping relationship between the input material volume flow rate, the material thickness and the hanging material thickness in the case where the material hanging occurs on the conveying device, which is predetermined, is corrected based on the thickness of the hanging material at the second position; Optionally, Determine the actual feeding margin according to the hanging material thickness; The ratio of the actual conveying margin to the volume flow threshold of the conveying device when conveying materials is used as the actual flow capacity value of the conveying device; and Controlling the feeding speed and / or feeding volume flow rate during feeding to the conveying device according to the actual flow-through capacity value and / or the percentage of the decrease of the actual flow-through capacity value, wherein the percentage is obtained by the actual flow-through capacity value and the expected flow-through capacity value; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: A material cleaning module, used to clean the material in the chute when the actual flow capacity value is less than a first threshold value and / or the percentage of the actual flow capacity value decrease is greater than or equal to a second threshold value, and / or the thickness of the hanging material is greater than or equal to a third threshold value; or to clean the material in the chute based on a set period; Optionally, After the material cleaning module cleans the material in the chute, re-determine the thickness of the hanging material and / or the actual flow capacity value and / or the percentage of the decrease in the actual flow capacity value; and Determining the cleaning effect of the material cleaning module according to the re-determined hanging material thickness and / or the actual flow through capacity value and / or the percentage of decrease in the actual flow through capacity value; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: An outlet volume flow detection module, used to output volume flow information of the material at the outlet of the conveying device; Determine the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the conveying device, and judge whether the material flow is smooth according to the input material volume flow rate and the outlet material volume flow rate; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: A display, at least for displaying one or more of the volume flow rate of the input material, the thickness of the flowing material at the first position, the thickness of the hanging material at the second position, the hanging material detection result, the thickness of the hanging material at the first position, the thickness of the flowing material at the second position, the volume flow rate of the chute material at each second position, the volume flow rate of the chute material at each angle at each second position, the actual chute margin, the actual flow capacity value, and the percentage of decrease of the actual flow capacity value; Optionally, When the chute device stops conveying the material, obtaining the thickness of the material output by the material thickness detection module; Determining whether material hanging occurs in the conveying device according to the thickness of the material; and When it is determined that material hanging occurs in the conveying equipment, the thickness of the hanging material is determined according to the thickness of the material.

5. A visual material hanging detection and management system for conveying equipment, characterized in that: include: At least one material detection module, the material detection module is used to detect and output first material information in the conveying device, the first material information including one or more of material flow speed at different thicknesses, material volume flow, material thickness, hanging material thickness and flowing material thickness; Determine whether material hanging occurs on the conveying equipment and determine a target material hanging thickness based on the first conveying material information.

6. The visual material hanging detection and management system for conveying equipment according to claim 5 is characterized in that: The first material conveying information includes material flow speeds at different thicknesses, and when there is a material flow speed less than or equal to a material flow speed threshold, it is determined that material hanging occurs in the conveying device, and the thickness corresponding to the material flow speed less than or equal to the material flow speed threshold is used as the target material hanging thickness; Alternatively, the first material conveying information includes the volume flow rate of the conveying material and the thickness of the material. When the difference between the thickness of the material and the thickness of the material corresponding to the volume flow rate of the conveying material when no material hanging occurs in the conveying device is greater than a set value, it is determined that material hanging occurs in the conveying device, and the difference between the thickness of the material and the thickness of the material corresponding to the volume flow rate of the conveying material when no material hanging occurs in the conveying device is used as the target material hanging thickness; Alternatively, the first material information of the chute includes the hanging material thickness, and when the hanging material thickness is greater than the set value, it is determined that the chute equipment has hanging material, and the hanging material thickness is used as the target hanging material thickness; Alternatively, the first material conveying information includes the thickness of the material and the thickness of the flowing material. When the difference between the thickness of the material and the thickness of the flowing material is greater than the set value, it is determined that material hanging has occurred in the conveying equipment, and the difference between the thickness of the material and the thickness of the flowing material is used as the target material hanging thickness.

7. The visual material hanging detection and management system for conveying equipment according to claim 5 is characterized in that: The material detection module includes a stratified flow meter. Based on the material flow speed at different thicknesses obtained by at least one stratified flow meter detecting at least one position in the conveying device, it is determined whether the different thicknesses at at least one position are in a static material hanging state or a material flowing state, so as to determine the hanging material thickness at at least one position, the material thickness, the flowing material thickness, the volume flow rate of the conveying material at at least one position, and the volume flow rate of the conveying material of the entire material of the conveying device.

8. The visual material hanging detection and management system for conveying equipment according to claim 7 is characterized in that: The stratified flow meter has a plurality of velocity measuring probes, and the plurality of velocity measuring probes are distributed in the material thickness direction.

9. The visual material hanging detection and management system for conveying equipment according to claim 8 is characterized in that: Also includes: At least one material thickness detection module is used to obtain and output the thickness of the material in the conveying equipment; when the thickness of the material obtained by the material thickness detection module is greater than the thickness of the multiple velocity measuring probes of the stratified flow meter, the stratified flow meter can obtain the thickness of the hanging material at at least one position, and combine the thickness of the material obtained by the material thickness detection module to obtain the thickness of the flowing material at at least one position, and calculate the volume flow rate of the conveying material at at least one position and the volume flow rate of the conveying material of the entire material of the conveying equipment.

10. The visual material hanging detection and management system for conveying equipment according to any one of claims 5 to 9, characterized in that: The material thickness detection module is located at the same position as the stratified flow meter; Optionally, the number of the stratified flowmeters is P, and the P stratified flowmeters are installed at different positions in the material flow direction of the conveying device; according to the flow velocity of the material at different thicknesses at different positions in the conveying device and the thickness of the material, the hanging material thickness, the material thickness and the flowing material thickness at different positions are obtained, and the volume flow rate Q of the conveying material at each position is determined according to the flowing material thickness at each position, the flow velocity of the material and the size of the conveying device. 5-1 To Q 5-P , accumulate the volume flow rate Q of the material being transported at each position 5-1 To Q 5-P Obtaining the volume flow rate of the entire material of the conveying equipment; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: An outlet volume flow detection module, used to output volume flow information of the material at the outlet of the conveying device; Determine the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the chute device, and judge whether the material flow in the chute device is smooth according to the volume flow rate of the chute material at different positions and the outlet material volume flow rate; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: An outlet volume flow detection module, used to output volume flow information of the material at the outlet of the conveying device; Determine the outlet material volume flow rate according to the volume flow rate information of the material at the outlet of the chute device, and judge whether the material flow in the chute device is smooth according to the comparison between the chute material volume flow rate of the entire material and the outlet material volume flow rate; Optionally, Determine the actual feeding margin according to the target hanging material thickness; The ratio of the actual conveying margin to the volume flow threshold of the conveying device when conveying materials is used as the actual flow capacity value of the conveying device; and Controlling the feeding speed and / or feeding volume flow rate during feeding to the conveying device according to the actual flow-through capacity value and / or the percentage of the decrease of the actual flow-through capacity value, wherein the percentage is obtained by the actual flow-through capacity value and the expected flow-through capacity value; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: A material cleaning module, used to clean the material in the chute when the actual flow capacity value is less than a first threshold value and / or the percentage of the actual flow capacity value decrease is greater than or equal to a second threshold value, and / or the target hanging material thickness is greater than or equal to a third threshold value; or to clean the material in the chute based on a set period; Optionally, After the material cleaning module cleans the material in the chute, re-determine the target material thickness and / or the actual flow capacity value and / or the percentage of decrease in the actual flow capacity value; and Determining the cleaning effect of the material cleaning module according to the re-determined target hanging material thickness and / or the actual flow through capacity value and / or the percentage of decrease in the actual flow through capacity value; Optionally, the visual material hanging detection and management system for the conveying equipment further includes: The display is used to display at least one or more of the volume flow rate of the conveying material, the thickness of the flowing material, the hanging material detection result, the target hanging material thickness, the actual conveying margin, the actual flow capacity value, and the percentage of decrease in the actual flow capacity value.

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