A coal conveying area intelligent inspection system and method based on a coal conveying belt conveyor

Abstract

The application discloses a coal conveying area intelligent inspection system and method based on a coal conveying belt conveyor, relates to the technical field of intelligent inspection, and comprises a simulation analysis module, an inspection module, a warning terminal and a database. The conveying process of different belts conveying different characteristic coals at different speeds is simulated, the conveying situation of different belts conveying different characteristic coals at different speeds is analyzed, the belts and the speeds required for this conveying are set, whether each belt meets the requirement before conveying is started is monitored, the speed of each belt is adjusted, the inspection content of each belt and the starting inspection time of the inspection content are set after conveying is started, the speed of each belt and the inspection content are inspected, whether the belt is faulty is judged, and if the belt is faulty, a warning is given. The use amount of inspection resources is reduced, the effectiveness of the belt speed setting is ensured, and the conveying efficiency and the stability of conveying of the belt are ensured.

Description

Technical Field

[0001] This invention relates to the field of intelligent inspection technology, specifically to an intelligent inspection system and method for coal conveying areas based on coal conveying belts. Background Technology

[0002] As the core equipment for coal transportation, coal conveyor belts are widely used in industrial settings such as thermal power plants, coal mines, and ports. The efficient and stable operation of coal conveying areas is crucial to the energy supply chain. With the expansion of industrial production scale and intelligent development, the demand for precise control of coal conveyor belt speed and belt inspection is becoming increasingly prominent.

[0003] Traditional intelligent inspection systems and methods for coal conveying areas based on coal conveyor belts set the belt speed of each belt according to the coal volume or manual experience before transportation begins. After the inspection begins, each belt is inspected at the set inspection times, and the inspection results are used to determine whether each belt is faulty. When a faulty belt is found, an early warning is issued. Obviously, this kind of intelligent inspection system and method for coal conveying areas based on coal conveyor belts has at least the following shortcomings: 1. Traditional intelligent inspection systems and methods for coal conveying areas based on coal conveyor belts set the speed of each belt only according to the coal volume or manual experience before transportation begins, ignoring the influence of coal characteristics and belt material on belt speed. Therefore, the effectiveness of belt speed setting cannot be guaranteed.

[0004] 2. Traditional intelligent inspection systems and methods for coal conveying areas based on coal conveyor belts inspect all faults of each belt during transportation. However, not all faults of each belt will occur during transportation, thus increasing the amount of inspection resources used. Furthermore, there is a lack of belt speed inspection during transportation. The amount of coal conveyed may change during transportation, and different conveying volumes correspond to different speeds, so the transportation efficiency and stability of the belt cannot be guaranteed. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the present invention aims to provide an intelligent inspection system and method for coal conveying areas based on coal conveying belt conveyors.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In the first aspect, the present invention provides an intelligent inspection system for coal conveying areas based on coal conveying belts, including the following modules: simulation analysis module, inspection module, early warning terminal and database.

[0007] The simulation analysis module is used to simulate the transportation process of coal with different characteristics using different belts at different speeds, record transportation information during the transportation process, and analyze the transportation situation of coal with different characteristics using different belts at different speeds.

[0008] The simulation analysis module operates as follows: it acquires belts of different materials and coals with different properties, randomly pairs the belts of different materials and coals with different properties to obtain each transport group, and retrieves the speed of each belt in the coal conveying area during each historical transport from the database, setting different belt speeds for each transport group.

[0009] Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed.

[0010] The analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal blocks are piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor.

[0011] When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition, and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition, and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds.

[0012] The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is then obtained. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is then used to obtain the historical transports of each belt.

[0013] In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained.

[0014] The inspection module includes a pre-transport inspection unit and a mid-transport inspection unit.

[0015] The pre-transport inspection unit is used to determine whether each belt in the current coal conveying area meets the requirements before transportation, and to replace each belt that does not meet the requirements. At the same time, it obtains the belt speed required for this transportation and adjusts the speed of each belt to the required belt speed.

[0016] The transport inspection unit is used to set the inspection contents and start time of each inspection contents for each belt. When each belt is transporting, the speed of each belt and each inspection contents are inspected, and it is determined whether each belt is faulty.

[0017] The early warning terminal is used to issue an early warning when there is a faulty belt.

[0018] The database is used to store the speed, material, inspection reports, patrol reports, and start time of each belt in the coal conveying area during each historical transportation, as well as the start time, coal volume, and coal characteristics of the current transportation.

[0019] Secondly, the present invention provides an intelligent inspection method for coal conveying areas based on coal conveying belts, including the following steps: S1, simulation and analysis: simulating the transportation process of coal with different characteristics using different belts at different speeds, recording transportation information during the transportation process, and analyzing the transportation situation of coal with different characteristics using different belts at different speeds.

[0020] The simulation and analysis process is as follows: Obtain belts of different materials and coal with different properties, and randomly combine belts of different materials and coal with different properties in pairs to obtain each transport group. Obtain the speed of each belt in the coal conveying area during each historical transport from the database, and set different belt speeds for each transport group.

[0021] Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed.

[0022] The analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal blocks are piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor.

[0023] When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition, and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition, and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds.

[0024] The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is then obtained. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is then used to obtain the historical transports of each belt.

[0025] In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained.

[0026] S2. Pre-transport inspection: Before transportation, determine whether each belt in the current coal conveying area meets the requirements, replace any belts that do not meet the requirements, obtain the required belt speed for this transportation, and adjust the speed of each belt to the required belt speed.

[0027] S3. Inspection during transportation: Set the inspection contents and start time of each inspection contents for each belt. When each belt is in operation, inspect the speed of each belt and each inspection contents, and determine whether each belt is faulty.

[0028] The beneficial effects of this invention are as follows: 1. This invention provides an intelligent inspection system and method for coal conveying areas based on coal conveyor belts. By simulating the transportation process of different belts using different speeds to transport coal with different characteristics, the system analyzes the transportation situation of different belts using different speeds to transport coal with different characteristics, and sets the belt and speed required for this transportation. Before the start of transportation, it monitors whether each belt meets the requirements and adjusts the speed of each belt. After the start of transportation, it sets the inspection content and start time of each inspection content for each belt, and inspects the speed and inspection content of each belt to determine whether the belt is faulty. If a faulty belt is found, an early warning is issued, which reduces the usage of inspection resources, ensures the effectiveness of belt speed settings, and also ensures the transportation efficiency and stability of the belt.

[0029] 2. This invention obtains belts of different materials and coals with different characteristics, and randomly pairs the belts of different materials and coals with different characteristics to obtain various transport groups. The invention uses virtual technology to simulate the transport process of each transport group in the coal transport area at different belt speeds, and records the transport information of each transport group in the coal transport area at different belt speeds. It analyzes the transport situation of different materials using belts at different speeds to transport coals with different characteristics. Before transport, based on the transport situation of the same material using belts at different speeds to transport coals with different characteristics, the amount of coal transported in this transport, and the characteristics of the coal, the required belt material and speed for this transport are set, ensuring the effectiveness of the belt speed setting.

[0030] 3. This invention retrieves inspection reports of each conveyor belt from the database for each historical transportation trip, analyzes the inspection content and start time of each inspection content, and checks whether the coal conveying volume has changed. If it has changed, the speed of each conveyor belt is adjusted. At the same time, each inspection content of each conveyor belt is inspected at the start time of each inspection content, which reduces the amount of inspection resources used and ensures the transportation efficiency and stability of the conveyor belt. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the system structure connection of the present invention.

[0033] Figure 2 This is a schematic diagram of the implementation steps of the method of the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 As shown, the present invention provides an intelligent inspection system for coal conveying areas based on coal conveying belts, including: a simulation analysis module, an inspection module, an early warning terminal, and a database.

[0036] The simulation analysis module is connected to the inspection module, the inspection module is connected to the early warning terminal, and the database is connected to both the simulation analysis module and the inspection module.

[0037] The simulation analysis module is used to simulate the transportation process of coal with different characteristics using different belts at different speeds, record transportation information during the transportation process, and analyze the transportation situation of coal with different characteristics using different belts at different speeds.

[0038] In a specific embodiment, the simulation analysis module performs the following process: acquiring belts of different materials and coal with different characteristics, randomly combining belts of different materials and coal with different characteristics in pairs to obtain each transportation group, and obtaining the speed of each belt in the coal conveying area during each historical transportation from the database, and setting different belt speeds for each transportation group.

[0039] It should be noted that the materials of the belts include ordinary rubber belts, wear-resistant rubber belts, canvas belts, and steel mesh belts.

[0040] It should also be noted that different coal characteristics refer to differences in particle size, moisture content, density, and adhesion.

[0041] Specifically, the speeds of each belt during each historical transport are retrieved from the database and integrated to obtain a speed set. Each element in the speed set represents the belt speed, and these elements are then used as the different belt speeds for each transport group.

[0042] Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed.

[0043] It should be noted that the physical parameters of the equipment such as belt conveyors, transfer stations and coal chutes of each transportation group are obtained by 3D scanning, and virtual models of the equipment such as belt conveyors, transfer stations and coal chutes of each transportation group are generated. The virtual model of the coal of each transportation group is also generated based on the parameters of the coal in each transportation group. At the same time, the environmental parameters of each coal conveying area are collected by sensors to simulate the environment of the coal conveying area. Safety constraints of the belt are also set. Finally, the transportation of coal on the belt is simulated by the discrete element method.

[0044] Taking a conveyor belt as an example, the physical parameters of the conveyor belt include its width and length, while the environmental parameters include temperature, humidity, and dust concentration. The parameters of coal include particle size, humidity, and density.

[0045] It should also be noted that the transportation information includes the height and area of ​​each coal pile on the conveyor belt, as well as the various parameter values ​​of the conveyor belt.

[0046] It should be noted that the characteristics of coal directly affect the upper limit of belt speed. For example, when the coal particles are large and hard, the belt speed cannot be too fast, otherwise the coal will scatter due to inertia, impacting the belt and causing wear.

[0047] It should also be noted that the material of the belt determines the maximum speed the belt can withstand. For example, when the strength of the belt material is low, the speed cannot be too high, otherwise the belt may tear.

[0048] The above analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal is piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor.

[0049] It should be noted that the height and area of ​​each coal pile are compared with the preset height threshold and the preset area threshold. If the height of a coal pile is less than the preset height threshold and the area is less than the preset area threshold, the return value of the coal pile is 1. If the height of a coal pile is greater than the preset height threshold or the area is greater than the preset area threshold, the return value of the coal pile is 0.

[0050] It should also be noted that the preset height threshold and preset area threshold are critical values ​​used to determine whether coal blocks are piled up. Historical transports with good transport conditions are obtained from the database and referred to as historical good transports. The height and area of ​​each coal pile on the conveyor belt during each historical good transport are obtained from the database and compared. The maximum height and the maximum area are selected as the preset height threshold and preset area threshold, where the area refers to the contact area between the coal pile and the conveyor belt.

[0051] When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition, and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition, and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds.

[0052] It should be noted that the parameters of the belt include belt misalignment, tension, number of holes, and tear length.

[0053] It should also be noted that the values ​​of each parameter of the conveyor belt are compared with the range of values ​​of each parameter of the conveyor belt. If there is a parameter of the conveyor belt whose value is not within the range, the return value of the conveyor belt is 0. If all the values ​​of each parameter of the conveyor belt are within the range of values ​​of each parameter of the conveyor belt, the return value of the conveyor belt is 1.

[0054] The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is obtained in this way. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is obtained in this way.

[0055] In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained.

[0056] The inspection module includes a pre-transport inspection unit and a mid-transport inspection unit.

[0057] The pre-transport inspection unit is used to determine whether each belt in the current coal conveying area meets the requirements before transportation, and to replace each belt that does not meet the requirements. At the same time, it obtains the belt speed required for this transportation and adjusts the speed of each belt to the required belt speed.

[0058] In a specific embodiment, the pre-transport inspection unit performs the following process: based on the transportation situation of coal with different characteristics transported by belts of different materials at different speeds, it constructs a speed-transportation relationship diagram of coal with different characteristics transported by belts of different materials, obtains the amount of coal transported in this instance from the database, and obtains the minimum belt speed for this transport based on the amount of coal transported in this instance.

[0059] It should be noted that the coal conveying capacity = belt speed × belt width × coal pile height × coal density. Historical transports with good transport conditions are obtained from the database and referred to as historical good transports. The height of each coal pile on the belt during each historical good transport is obtained from the database and compared. The minimum height is taken as the coal pile height in the above formula. The coal density and belt width are obtained from the database. The belt speed obtained through the above formula is taken as the minimum belt speed.

[0060] Simultaneously, the characteristics of the coal being transported are obtained from the database. Based on the characteristics of the coal being transported, the speed-transportation relationship diagram of different types of coal transported by different material belts, and the minimum belt speed, the required belt material and required belt speed for this transportation are obtained.

[0061] The material of each belt in the current coal conveying area is retrieved from the database and compared with the material of the belt required for this transportation. If there is a belt with a material different from the material required for this transportation, it is called a marked belt and the marked belt is replaced with a belt of the required material. At the same time, the speed of each belt is adjusted to the required belt speed.

[0062] The specific process for obtaining the required belt material and belt speed for this transportation is as follows: The coal being transported is referred to as the marked characteristic coal. Based on the speed-transportation relationship diagram of the marked characteristic coal and the different material belts transporting different characteristic coals, the maximum and minimum belt speeds of the marked characteristic coal under good transportation conditions are obtained and compared with the minimum belt speed during this transportation. The belts whose maximum belt speed for transporting the marked characteristic coal is greater than the minimum belt speed during this transportation are referred to as the marked belt materials. One belt material is randomly selected from the marked belt materials and used as the belt material required for this transportation.

[0063] Compare the minimum belt speed of the belt material with the minimum belt speed during this transport. If the minimum belt speed of the belt material is less than the minimum belt speed during this transport, then the minimum belt speed during this transport will be used as the required belt speed for this transport. If the minimum belt speed of the belt material is greater than the minimum belt speed during this transport, then the minimum belt speed of the belt material will be used as the required belt speed for this transport.

[0064] The transport inspection unit is used to set the inspection contents and start time of each inspection contents for each belt. When each belt is transporting, the speed of each belt and each inspection contents are inspected, and it is determined whether each belt is faulty.

[0065] In a specific embodiment, the inspection unit during transportation follows the following process: retrieves inspection reports of each conveyor belt from the database for each historical transportation, and analyzes the inspection contents of each conveyor belt and the start time of each inspection contents.

[0066] When each conveyor belt in the coal conveying area starts transporting, the collection time is set according to the preset time interval. The coal conveying amount is collected at each collection time, and it is determined whether the coal conveying amount at each collection time has changed. If it has changed, the collection time at which the coal conveying amount has changed is called the marked collection time. The required belt speed at each marked collection time is obtained, and the belt speed is adjusted to the required belt speed at each marked collection time.

[0067] It should be noted that the preset time interval is a critical value used to determine whether the settings of each collection time are reasonable. It is set by relevant staff, and the coal conveying volume is collected by electronic belt scale at each collection time.

[0068] It should also be noted that the collection times are sorted in chronological order, and the coal conveying volume of each subsequent collection time is compared with that of the previous collection time. If the coal conveying volume of the subsequent collection time is different from that of the previous collection time, it means that the coal conveying volume of the subsequent collection time has changed. If the coal conveying volume of the subsequent collection time is the same as that of the previous collection time, it means that the coal conveying volume of the subsequent collection time has not changed.

[0069] The initial coal transport volume is obtained from the database before the transport begins. The coal transport volume at the first collection time is compared with the initial coal transport volume to determine whether the coal transport volume at the first collection time has changed.

[0070] It needs to be explained that the required belt speed at each marker collection time is obtained by using the method of obtaining the required speed for this transport before the start of transport.

[0071] At the same time, each inspection item of each belt is inspected at the start time of each inspection item, and the inspection results are used to determine whether each belt is faulty. If a faulty belt is found, an early warning is issued. If no faulty belt is found, the inspection of each belt item continues.

[0072] The above-mentioned analysis of the inspection contents of each belt and the start time of each inspection contents is specifically carried out as follows: obtain the faults that occurred in each belt during each historical transportation process and the time when each fault occurred from the inspection reports of each belt during each historical transportation process.

[0073] It should be noted that belt malfunctions include belt misalignment, belt slippage, and belt tearing.

[0074] In each belt, the faults that occurred in each historical transportation process are integrated to obtain each marked fault. By obtaining each marked fault of each belt in this way, each marked fault of each belt becomes the inspection content of each belt. At the same time, based on each marked fault of each belt and the inspection report of each historical transportation of each belt, the historical transportation of each marked fault of each belt is obtained.

[0075] It should be noted that the inspection content is different for different faults. For example, the inspection content for belt slippage is the contact point between the drive roller and the belt and the belt itself, while the inspection content for belt tearing is the belt surface and belt joint.

[0076] In each belt, based on the time when each marked fault occurred in its historical transport process, the earliest occurrence time of each marked fault is obtained and called the marked time of each marked fault. The historical transport in which the earliest occurrence time of each marked fault occurred is called the marked historical transport of each marked fault. In this way, the marked time and marked historical transport of each marked fault in each belt are obtained. Then, the start transport time of the marked historical transport of each marked fault in each belt and the start transport time of the current transport are obtained from the database. The start inspection time of each marked fault in each belt during the current transport process is calculated.

[0077] It should be noted that the first value of each fault mark on each belt is obtained by subtracting the start time of the historical transport of each fault mark on each belt from the marking time of each fault mark on each belt. The first value of each fault mark on each belt is then added to the start time of the current transport to obtain the start inspection time of each fault mark on each belt.

[0078] The specific process for determining whether each belt is faulty is as follows: At the start of the inspection time for each inspection item of each belt, the parameters of each inspection item of each belt are collected, and the parameter characteristics of each inspection item of each belt are obtained. The parameter characteristics of each inspection item of each belt are compared with the standard parameter characteristics of each inspection item of each belt. If a belt has parameter characteristics that are different from the marked parameter characteristics, it means that the belt is faulty. If the parameter characteristics of each inspection item of a belt are the same as the marked parameter characteristics of each inspection item, it means that the belt is not faulty. This method is used to determine whether each belt is faulty.

[0079] It should be noted that the parameters corresponding to each inspection item are different. For example, the parameters corresponding to the inspection item for belt slippage include drive roller speed, belt speed, and belt tension. This example is for illustrative purposes only and is not the only limitation.

[0080] It should also be noted that the parameter features of each inspection item of each belt are obtained by a multilayer perceptron. Several neurons are set in the input layer of the multilayer perceptron model to receive the parameters. 32 neurons and activation functions are set in the first hidden layer to extract low-order features. 16 neurons and activation functions are set in the second hidden layer to extract high-order features. 16 neurons are set in the feature output layer to extract the final parameter features. After the model is built, several sample sets and validation sets are set to train the model.

[0081] After the model is trained, outlier handling and standardization are performed on the parameters of each inspection item of each conveyor belt. The processed parameters are then input into the model to obtain the parameter features of each inspection item of each conveyor belt.

[0082] The early warning terminal is used to issue an early warning when there is a faulty belt.

[0083] The database is used to store the speed, material, inspection reports, patrol reports, and start time of each belt in the coal conveying area during each historical transportation, as well as the start time, coal volume, and coal characteristics of the current transportation.

[0084] Please see Figure 2 The present invention provides an intelligent inspection method for coal conveying areas based on coal conveyor belts, including: S1, simulation and analysis: simulating the transportation process of coal with different characteristics using different belts at different speeds, recording transportation information during the transportation process, and analyzing the transportation situation of coal with different characteristics using different belts at different speeds.

[0085] The simulation and analysis process is as follows: Obtain belts of different materials and coal with different properties, and randomly combine belts of different materials and coal with different properties in pairs to obtain each transport group. Obtain the speed of each belt in the coal conveying area during each historical transport from the database, and set different belt speeds for each transport group.

[0086] Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed.

[0087] The analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal blocks are piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor.

[0088] When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition, and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition, and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds.

[0089] The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is then obtained. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is then used to obtain the historical transports of each belt.

[0090] In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained.

[0091] S2. Pre-transport inspection: Before transportation, determine whether each belt in the current coal conveying area meets the requirements, replace any belts that do not meet the requirements, obtain the required belt speed for this transportation, and adjust the speed of each belt to the required belt speed.

[0092] S3. Inspection during transportation: Set the inspection contents and start time of each inspection contents for each belt. When each belt is in operation, inspect the speed of each belt and each inspection contents, and determine whether each belt is faulty.

[0093] This invention simulates the transportation process of coal with different characteristics using different belts at different speeds, analyzes the transportation conditions of coal with different characteristics using different belts at different speeds, and sets the belts and speeds required for this transportation. Before transportation begins, it monitors whether each belt meets the requirements and adjusts the speed of each belt. After transportation begins, it sets the inspection contents and start time of each inspection contents for each belt, and inspects the speed of each belt and each inspection contents to determine whether the belt is faulty. If a faulty belt is found, an early warning is issued, which reduces the amount of inspection resources used, ensures the effectiveness of belt speed settings, and also ensures the transportation efficiency and stability of the belts.

[0094] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. An intelligent inspection system for coal conveying areas based on coal conveyor belts, characterized in that, Includes the following modules: The simulation analysis module is used to simulate the transportation process of coal with different characteristics using different belts at different speeds, record transportation information during the transportation process, and analyze the transportation situation of coal with different characteristics using different belts at different speeds. The simulation analysis module works as follows: it acquires belts of different materials and coal with different properties, and randomly combines belts of different materials and coal with different properties in pairs to obtain each transport group. It also retrieves the speed of each belt in the coal conveying area during each historical transport from the database and sets different belt speeds for each transport group. Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed. The analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal is piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor. When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds. The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is obtained in this way. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is obtained in this way. In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained. The inspection module includes a pre-transport inspection unit and a mid-transport inspection unit: The pre-transport inspection unit is used to determine whether each belt in the current coal conveying area meets the requirements before transportation, and to replace each belt that does not meet the requirements. At the same time, it obtains the belt speed required for this transportation and adjusts the speed of each belt to the required belt speed. The transport inspection unit is used to set the inspection contents and start time of each inspection contents for each belt. When each belt is transporting, the speed of each belt and each inspection contents are inspected, and it is determined whether each belt is faulty. The early warning terminal is used to issue an early warning when a belt malfunctions; The database is used to store the speed, material, inspection reports, patrol reports, and start time of each conveyor belt in the coal conveying area during each historical transport, as well as the start time, coal volume, and coal characteristics of the current transport.

2. The intelligent inspection system for coal conveying areas based on a coal conveyor belt as described in claim 1, characterized in that, The pre-transportation inspection unit operates as follows: Based on the transportation of coal with different properties using belts of different materials at different speeds, a speed-transportation relationship graph for transporting coal with different properties using belts of different materials is constructed. The amount of coal transported in this case is obtained from the database, and the minimum belt speed for this transportation is obtained based on the amount of coal transported in this case. At the same time, the characteristics of the coal being transported are obtained from the database, and based on the characteristics of the coal being transported, the speed-transportation relationship diagram of different types of coal transported by different material belts, and the minimum belt speed, the required belt material and required belt speed for this transportation are obtained. The material of each belt in the current coal conveying area is retrieved from the database and compared with the material of the belt required for this transportation. If there is a belt with a material different from the material required for this transportation, it is called a marked belt and the marked belt is replaced with a belt of the required material. At the same time, the speed of each belt is adjusted to the required belt speed.

3. The intelligent inspection system for coal conveying areas based on a coal conveyor belt as described in claim 2, characterized in that, The specific process for obtaining the belt material and required belt speed for this transportation is as follows: The coal being transported is referred to as the marked characteristic coal. Based on the speed-transportation relationship diagram of the marked characteristic coal and the different material belts used to transport coal with different characteristics, the maximum and minimum belt speeds of the marked characteristic coal under good transportation conditions are obtained and compared with the minimum belt speed during this transportation. The belts with the maximum belt speed for transporting the marked characteristic coal that is greater than the minimum belt speed during this transportation are referred to as the marked belt materials. One belt material is randomly selected from the marked belt materials and used as the belt material required for this transportation. Compare the minimum belt speed of the belt material with the minimum belt speed during this transport. If the minimum belt speed of the belt material is less than the minimum belt speed during this transport, then the minimum belt speed during this transport will be used as the required belt speed for this transport. If the minimum belt speed of the belt material is greater than the minimum belt speed during this transport, then the minimum belt speed of the belt material will be used as the required belt speed for this transport.

4. The intelligent inspection system for coal conveying areas based on a coal conveyor belt as described in claim 1, characterized in that, The inspection unit during transportation operates as follows: Retrieve inspection reports of each conveyor belt during historical transportation from the database, and analyze the inspection contents of each conveyor belt and the start time of each inspection contents. When each conveyor belt in the coal conveying area starts transporting, each collection time is set according to a preset time interval. The amount of coal conveyed is collected at each collection time, and it is determined whether the amount of coal conveyed at each collection time has changed. If it has changed, the collection time at which the amount of coal conveyed has changed is called the marked collection time. The required belt speed at each marked collection time is obtained, and the belt speed is adjusted to the required belt speed at each marked collection time. At the same time, each inspection item of each belt is inspected at the start time of each inspection item, and the inspection results are used to determine whether each belt is faulty. If a faulty belt is found, an early warning is issued. If no faulty belt is found, the inspection of each belt item continues.

5. The intelligent inspection system for coal conveying areas based on a coal conveyor belt as described in claim 4, characterized in that, The analysis of each belt's inspection items and the start time of each inspection item is as follows: Obtain the faults that occurred on each conveyor belt during each historical transportation process and the time when each fault occurred from the inspection reports of each conveyor belt during each historical transportation process; In each belt, the faults that occurred in each historical transportation process are integrated to obtain each marked fault. By obtaining each marked fault of each belt in this way, each marked fault of each belt becomes the inspection content of each belt. At the same time, based on each marked fault of each belt and the inspection report of each historical transportation of each belt, the historical transportation of each marked fault of each belt is obtained. In each belt, based on the time when each marked fault occurred in its historical transport process, the earliest occurrence time of each marked fault is obtained and called the marked time of each marked fault. The historical transport in which the earliest occurrence time of each marked fault occurred is called the marked historical transport of each marked fault. In this way, the marked time and marked historical transport of each marked fault in each belt are obtained. Then, the start transport time of the marked historical transport of each marked fault in each belt and the start transport time of the current transport are obtained from the database. The start inspection time of each marked fault in each belt during the current transport process is calculated.

6. The intelligent inspection system for coal conveying areas based on a coal conveyor belt as described in claim 4, characterized in that, The specific process for determining whether each belt is faulty is as follows: At the start of each inspection item on each belt, parameters for each inspection item on each belt are collected, and the parameter characteristics of each inspection item on each belt are obtained. The parameter characteristics of each inspection item on each belt are compared with the standard parameter characteristics of each inspection item on each belt. If a belt has parameter characteristics that are different from the marked parameter characteristics, it means that the belt is faulty. If the parameter characteristics of each inspection item on a belt are the same as the marked parameter characteristics of each inspection item, it means that the belt is not faulty. This method is used to determine whether each belt is faulty.

7. An intelligent inspection method for a coal conveying area intelligent inspection system based on a coal conveying belt conveyor as described in any one of claims 1-6, characterized in that, include: S1. Simulation and Analysis: Simulate the transportation process of coal with different characteristics using different belts at different speeds, record the transportation information during the transportation process, and analyze the transportation situation of coal with different characteristics using different belts at different speeds; The simulation and analysis process is as follows: obtain belts of different materials and coal with different properties, and randomly combine belts of different materials and coal with different properties in pairs to obtain each transport group. Then, obtain the speed of each belt in the coal conveying area during each historical transport from the database, and set different belt speeds for each transport group. Using virtual technology, the transportation process of each transport group in the coal conveying area at different belt speeds is simulated, and the transportation information of each transport group in the coal conveying area at different belt speeds is recorded. Based on the transportation information of each transport group in the coal conveying area at different belt speeds, the transportation situation of coal with different characteristics using belts of different materials at different speeds is analyzed. The analysis of the transportation of coal with different properties using conveyor belts of different materials at different speeds is as follows: The height and area of ​​each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds are obtained, and the return value of each coal pile on the conveyor belt of each transportation group at different conveyor belt speeds is obtained. When there is a coal pile with a return value of 0 on the conveyor belt of a certain transportation group at a certain conveyor belt speed, it means that the coal is piled up, and the transportation situation of the transportation group at that conveyor belt speed is poor. When the return values ​​of all coal piles on the conveyor belt of a certain transport group are all 1 at a certain conveyor belt speed, the values ​​of each parameter of the conveyor belt of that transport group at that conveyor belt speed are obtained, and the range of each parameter value of the conveyor belt of that transport group is obtained. At the same time, the return value of the conveyor belt of that transport group is obtained. If the return value of the conveyor belt of that transport group is 1, it means that the conveyor belt is in good condition and the transport situation of the transport group at that conveyor belt speed is good. If the return value of the conveyor belt of that transport group is 0, it means that the conveyor belt is in poor condition and the transport situation of the transport group at that conveyor belt speed is poor. This method is used to analyze the transport situation of coal with different characteristics using conveyor belts of different materials at different speeds. The specific process for obtaining the parameter ranges of the belts in the transport group is as follows: The material of each belt during each historical transport is retrieved from the database, and historical transports with the same material are grouped into one historical transport group. Each historical transport group is obtained in this way. Within each historical transport group, the inspection reports of each belt after each historical transport are retrieved from the database, and the parameter values ​​and status inspection results of each belt after each historical transport are obtained from these reports. If the status inspection result of a belt after a certain historical transport is good, then that historical transport is referred to as the historical transport of that belt. Each historical transport group is obtained in this way. In each historical transport group, the parameter values ​​of each belt after each historical transport are compared to obtain the range of each belt parameter value. This method is used to obtain the range of each belt parameter value in each historical transport group, and a belt material-parameter table is constructed. Based on the belt material-parameter table and the belt material of the transport group, the range of each belt parameter value in the transport group is obtained. S2. Pre-transport inspection: Before transportation, determine whether each belt in the current coal conveying area meets the requirements, replace any belts that do not meet the requirements, obtain the required belt speed for this transportation, and adjust the speed of each belt to the required belt speed. S3. Inspection during transportation: Set the inspection contents and start time of each inspection contents for each belt. When each belt is in operation, inspect the speed of each belt and each inspection contents, and determine whether each belt is faulty.

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