Intelligent conveying system

Abstract

The invention discloses an intelligent conveying system, and relates to the technical field of conveying systems, the intelligent conveying system comprises a conveying unit driven by a driving unit, the surface of the conveying unit bears coal, and the sinking state of a conveying belt is changed based on the weight of the coal; the interaction unit is used for marking conveying nodes of the conveying belt, the intervals of the conveying nodes are the same, coal borne by the conveying belt between every two adjacent conveying nodes is a coal unit, and the interaction unit interactively determines the position of each coal unit; and the coal metering unit is used for acquiring the shape of the conveying belt and determining the coal conveying amount of each coal unit according to the shape change of the conveying belt by each coal unit. In the conveying process, the form change of the conveying belt is obtained, the amount of coal conveyed by the conveying belt is determined according to the form change, the loading equipment corresponding to each loading of the conveying belt is determined according to the coal loading capacity required by each loading task, and the accurate loading capacity of each loading equipment is calculated and obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying systems, in particular to an intelligent conveying system. Background Art

[0002] With the development of industrial production, the logistics industry has an increasingly urgent need to improve production efficiency, reduce costs, and reduce manual intervention. Traditional conveying systems often have problems such as complex operation, low efficiency, and high labor costs. In order to solve these problems, intelligent conveying systems came into being. As an important link in the production process, the operating efficiency and stability of the intelligent conveying system directly affect the efficiency of the entire production line. In order to solve the problems of traditional conveying systems, such as complex operation, high maintenance costs, and low operating efficiency.

[0003] Announcement No. CN116605677A discloses an intelligent graphite conveying system, which includes a controller, at least one buffer tank, at least one weighing bin and at least one terminal bin; the controller is respectively connected to the buffer tank, the weighing bin and the terminal bin in communication; the buffer tank is connected to the weighing bin through a first pipeline, and the weighing bin is connected to the terminal bin through a second pipeline, and a screw conveyor is provided in the first pipeline. During the graphite conveying process, a weighing bin is set between the buffer tank at the front end and the terminal bin at the terminal. During the transportation process, the graphite will first enter the weighing bin from the buffer bin, and the weighing quantity of the weighing bin will be used as the trigger condition for the subsequent graphite transportation, and the transportation will be stopped after the graphite is completely transferred to the weighing bin. Through the transit and weighing functions of the weighing bin, and the power adjustment of the transportation device during the weighing process, precise control from the buffer bin to the terminal bin is achieved during the graphite transportation process.

[0004] During the transportation process at the coal port, it is impossible to automatically allocate transportation tasks according to the transportation situation. The operator is required to set the loading time for each transportation task and determine the loading capacity based on the transportation efficiency and loading time of the transportation system. The weight differences of coal during the transportation process lead to differences in the final loading capacity. Summary of the invention

[0005] One of the purposes of the present invention is to provide an intelligent transportation system, which can determine the exact loading amount according to the loading amount of each loading task and the state of the coal transportation process during the coal loading process. It is only necessary to set the loading amount of each loading task and complete the precise state through the transportation system.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent conveying system, comprising:

[0007] A conveying unit driven by a driving unit, the conveying unit surface carrying coal and changing a sinking state of a conveyor belt based on the weight of the coal;

[0008] Interaction unit, used to mark the conveying nodes of the conveyor belt. The intervals between the conveying nodes are the same. The coal carried by the conveyor belt between two adjacent conveying nodes is a coal unit. The interaction unit interactively determines the position of each coal unit.

[0009] The coal metering unit obtains the shape of the conveyor belt and determines the coal conveying capacity of each coal unit according to the change of the conveyor belt shape of each coal unit;

[0010] The dispatching unit realizes the conveying position of the loading equipment corresponding to each coal unit according to the loading task, calculates the amount of coal required for each loading task, and determines the conveying of the coal unit according to the remaining loading amount of the loading task. The dispatching unit is also provided with a conveying model for calculating the historical coal conveying amount. The conveying model determines the coal conveying amount of the coal unit entering the conveying unit based on the historical coal conveying amount data;

[0011] The control end is used to set the loading tasks corresponding to each loading device, monitor the loading progress in real time, and manage the coal inventory.

[0012] In one or more embodiments of the present invention, the interaction unit includes a plurality of photoelectric sensor transmitting ends or receiving ends evenly installed on the inner side of the conveyor belt, at least one photoelectric sensor receiving end or transmitting end, and a metering module. The plurality of photoelectric sensor transmitting ends or receiving ends correspond to at least one photoelectric sensor receiving end or transmitting end. The metering module obtains the receiving signal of the photoelectric sensor receiving end and measures the number of interactions between the photoelectric sensor transmitting end and the receiving end.

[0013] In one or more embodiments of the present invention, the interaction unit further includes a transmission module that interacts with the driving unit, the transmission module obtains the driving parameters of the driving unit, determines the conveyor belt movement speed through the driving parameters, and the metering module interacts with the transmission module to calibrate the conveying node;

[0014] The transmitting end and the receiving end are arranged in an inclined manner.

[0015] In one or more embodiments of the present invention, the coal metering unit comprises:

[0016] Sag collection equipment monitors the conveying status of the conveyor belt and the sag change data of the conveyor belt;

[0017] The data processing module processes the sag change data and extracts the sag values ​​of the conveyor belt at different positions;

[0018] The sag model is established based on the supporting points (a1, a2) at both ends of the conveyor belt to determine the initial sag of the conveyor belt during the empty process, and the coal weight corresponding to each coal unit is calculated based on the change in the sag value of the conveyor belt during the coal transportation process.

[0019] In one or more embodiments of the present invention, the calculation method of the weight of coal carried by the coal unit corresponding to the change in the verticality of the conveyor belt when it gradually moves from no load to full load is as follows:

[0020] The sag collection device obtains the unloaded state of the conveyor belt and records the initial sag d1 of the conveyor belt through the data processing module;

[0021] The first coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d2 of the first conveyor belt at this time. The sag model calculates the coal weight W1 of the coal unit at this time:

[0022] W1 = k·(d2-d1);

[0023] Where k is a constant;

[0024] The second coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d3 of the second conveyor belt at this time. The sag model calculates the coal weight W2 of the coal unit at this time:

[0025] W2 = k·(d3-d2);

[0026] Repeat the calculation of the vertical change after each increase of the coal unit and calculate the coal weight of each coal unit until the conveyor belt is fully loaded.

[0027] In one or more embodiments of the present invention, the method for calculating the weight of coal carried by the coal unit corresponding to the change in the sag of the conveyor belt under full load is as follows:

[0028] The sag state of the conveyor belt is collected with the interaction of the interactive unit as the node, and the sag value change of the conveyor belt between the two supporting points (a1, a2) is determined:

[0029] Get the sag value D before the interaction of the interaction unit f The sag value D after interaction b , calculate the sag change ΔD,

[0030] The sag model calculates the coal weight W at this time:

[0031] W = k·ΔD;

[0032] The sag change value obtained in real time is substituted into the sag model to calculate the corresponding coal weight of each coal unit.

[0033] In one or more embodiments of the present invention, the verticality acquisition device is an image acquisition device, which is installed toward the side of the conveyor belt. The transmitting end and the receiving end of the interactive unit interactively control the image acquisition device to acquire the verticality image of the conveyor belt between two supporting points (a1, a2), and the verticality of the conveyor belt is determined based on the two supporting points (a1, a2) and the verticality distance of the conveyor belt.

[0034] In one or more embodiments of the present invention, the sag collection device is a pressure unit, which is arranged between the support points (a1, a2) and fixed in position. The change in the sag of the conveyor belt applies pressure to the monitoring end of the pressure unit. The greater the sag of the conveyor belt, the greater the monitoring pressure at the monitoring end of the pressure unit.

[0035] The sag model converts the pressure monitored by the pressure unit into the current sag D p :

[0036] Record the initial pressure value T1 and initial sag D1 of the conveyor belt when there is no coal;

[0037] The sag model calculates the current sag D p :

[0038] D p =D1+j·(T-T1);

[0039] Among them, j is a constant and T is the current pressure value.

[0040] In one or more embodiments of the present invention, the method for scheduling the coal unit and the loading equipment to be matched by the scheduling unit is as follows:

[0041] Define loading tasks: set the loading task weights R1, R2, ... Rx of multiple loading devices respectively, where x is the total number of loading devices;

[0042] Get the weight of coal unit: record the weight ri of each coal unit;

[0043] Optimization algorithm selection: Use optimization algorithm to determine the best loading method;

[0044] Automatic scheduling:

[0045] Initialization: Set the current weight of each loading device to 0;

[0046] Loop allocation: traverse each coal unit and allocate the coal unit to the appropriate loading equipment according to the selected optimization algorithm;

[0047] Update Weight: After each dispense, the current weight of the corresponding loading device is updated.

[0048] In one or more embodiments of the present invention, the transportation model creates a historical coal transportation volume database, divides the historical coal data volume into multiple coverage ranges, determines the proportion of historical coal transportation volume in each coverage range, and calculates the probability of a coal unit carrying coal weight coverage range;

[0049] In the process of scheduling loading tasks using the optimization algorithm, the weight of coal carried by all coal units on the conveyor belt is obtained for scheduling loading tasks.

[0050] Through the above technical solution, the present invention has the following beneficial effects:

[0051] 1. During the conveying process of the present invention, the shape change of the conveyor belt is obtained, the amount of coal transported by the conveyor belt is determined according to the shape change, and the loading equipment corresponding to each loading of the conveyor belt is determined according to the coal loading amount required for each loading task. The precise loading amount of each loading equipment is obtained by calculation to avoid excessive differences in loading amounts.

[0052] 2. Determine the loading task at the control end. During the loading process, determine the coal transportation volume between each transportation node in the transportation system. During the loading process, determine the weight entering each loading equipment based on the coal transportation volume. Determine the matching loading equipment based on the change in coal transportation volume between each transportation node.

[0053] 3. During the transportation process of the conveying system, a plurality of interactive units capable of interactive identification are arranged on the inner side of the conveyor belt of the conveying system. The interactive units are used to determine the transportation nodes in the conveyor belt. Under the action of the weight of the coal loaded inside the conveyor belt, the weight borne by the conveyor belt is different, and the coal transportation volume is determined according to the state of the conveyor belt.

[0054] 4. Statistics are collected on the historical coal transportation volume, the frequency of occurrence of different historical coal transportation volumes is obtained, the coal transportation volume is predicted based on the frequency of occurrence of historical coal transportation volumes, and the amount of coal entering the loading equipment each time is determined based on the frequency of occurrence of historical coal volumes, so that the loaded coal volume can be more in line with the set loading task. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the conveying system of the present invention;

[0056] Figure 2 This is a schematic diagram of the installation position of the interactive component of the present invention. DETAILED DESCRIPTION

[0057] The following will disclose multiple embodiments of the present invention with the accompanying drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. And if it is possible to implement, the features of different embodiments can be applied interchangeably.

[0058] Unless otherwise defined, all words (including technical and scientific terms) used herein have their usual meanings, which can be understood by those familiar with this field. Furthermore, the definitions of the above words in commonly used dictionaries should be interpreted as the meanings consistent with the relevant fields of the present invention in the content of this specification. Unless otherwise clearly defined, these words will not be interpreted as idealized or overly formal meanings.

[0059] See also Figure 1-Figure 2 The present invention provides an intelligent conveying system, which improves the conveying system. During use, it is only necessary to set the loading task of the conveying system for each loading device, and the coal is automatically scheduled and loaded through the conveying system.

[0060] In one embodiment, the delivery system comprises:

[0061] A conveying unit driven by a driving unit, the conveying unit surface carrying coal and changing a sinking state of a conveyor belt based on the weight of the coal;

[0062] Interaction unit, used to mark the conveying nodes of the conveyor belt. The intervals between the conveying nodes are the same. The coal carried by the conveyor belt between two adjacent conveying nodes is a coal unit. The interaction unit interactively determines the position of each coal unit.

[0063] The coal metering unit obtains the shape of the conveyor belt and determines the coal conveying capacity of each coal unit according to the change of the conveyor belt shape of each coal unit;

[0064] The dispatching unit realizes the conveying position of the loading equipment corresponding to each coal unit according to the loading task, calculates the amount of coal required for each loading task, and determines the conveying of the coal unit according to the remaining loading amount of the loading task. The dispatching unit is also provided with a conveying model for calculating the historical coal conveying amount. The conveying model determines the coal conveying amount of the coal unit entering the conveying unit based on the historical coal conveying amount data;

[0065] The control end is used to set the loading tasks corresponding to each loading device, monitor the loading progress in real time, and manage the coal inventory.

[0066] In this embodiment, the coal delivery volume of each coal unit is calculated to determine the exact weight of each coal delivery volume to ensure accurate calculation during the loading process of the loading task. Since both ends of the conveyor belt are supported, the conveyor belt between the supporting positions will present different verticalities due to the different coal delivery volumes of each coal unit. The coal metering unit obtains the change in the conveying verticality of the conveyor belt to calculate the change in the coal delivery volume inside the coal unit.

[0067] Based on the precise coal transportation volume in the coal unit, in the process of scheduling according to the loading task, the coal corresponding to the transportation unit can be scheduled to be transported to different loading equipment, and different coal quantities can be combined to finally form a loading volume that is closest to the loading task.

[0068] When loading, the operator only needs to set the loading task corresponding to each loading equipment, and realize the transportation scheduling of each coal unit in the transportation system through the scheduling unit. During the scheduling process, the transportation model is used to determine the probability of the coal unit's transportation coal volume based on the historical coal transportation volume. When the scheduling unit refers to the coal units transported by the conveyor belt, it can also use some unloaded coal units as a reference for scheduling loading tasks.

[0069] In one embodiment, the interaction unit includes a plurality of photoelectric sensor transmitting ends or receiving ends evenly installed on the inner side of the conveyor belt, at least one photoelectric sensor receiving end or transmitting end, and a metering module. The plurality of photoelectric sensor transmitting ends or receiving ends correspond to at least one photoelectric sensor receiving end or transmitting end. The metering module obtains the receiving signal of the photoelectric sensor receiving end and measures the number of interactions between the photoelectric sensor transmitting end and the receiving end.

[0070] In this embodiment, by determining the number of interactions between the transmitting end and the receiving end, the movement position of each coal unit can be determined during use, thereby accurately determining the loading task corresponding to each coal unit.

[0071] In another embodiment, the interaction unit includes a plurality of positioning structures (receiving ends) evenly installed on the inner side of the conveyor belt, at least one ultrasonic sensor (transmitting end) and a metering module. The ultrasonic sensor obtains the position of the positioning structure and calculates the distance between the positioning structure and the ultrasonic sensor. The position of each coal unit is determined by the distance. The metering module obtains the number of coal units passing through the ultrasonic sensor.

[0072] In one embodiment, the interaction unit further includes a transmission module that interacts with the driving unit, the transmission module obtains driving parameters of the driving unit, and determines the conveyor belt movement speed through the driving parameters, and the metering module interacts with the transmission module to calibrate the conveying node;

[0073] The transmitting end and the receiving end are arranged in an inclined manner.

[0074] In this embodiment, since the transmitting end and the receiving end may malfunction after being used for a period of time, the movement speed of the conveyor belt is determined by the transmission module, and the length of the conveyor belt is fixed, the movement speed is fixed, and the receiving end or the transmitting end is evenly installed. Therefore, the metering time intervals of the metering modules are almost the same. The metering time intervals of the metering modules are transmitted to the metering module through the transmission module, so as to determine whether there is a fault in the transmitting end or the receiving end.

[0075] In one embodiment, the coal metering unit comprises:

[0076] Sag collection equipment monitors the conveying status of the conveyor belt and the sag change data of the conveyor belt;

[0077] The data processing module processes the sag change data and extracts the sag values ​​of the conveyor belt at different positions;

[0078] The sag model is established based on the supporting points (a1, a2) at both ends of the conveyor belt to determine the initial sag of the conveyor belt during the empty process, and the coal weight corresponding to each coal unit is calculated based on the change in the sag value of the conveyor belt during the coal transportation process.

[0079] In this embodiment, a sag model is used to simulate the sag change of the conveyor belt. The weight of coal carried by the coal unit of the conveyor belt between the two supporting points (a1, a2) is determined according to the sag change of the conveyor belt between the two supporting points (a1, a2). Therefore, the coal can be measured during the transportation process, and the position of the coal unit can be determined in cooperation with the interactive unit.

[0080] Among them, the sag collection device monitors the conveying status of the conveyor belt, and the collection of the sag collection device is controlled by the interactive unit, that is, after the receiving end in the interactive unit receives the instruction from the transmitting end, the sag collection device is controlled to collect the conveying status of the conveyor belt.

[0081] The position where the support point (a1, a2) is set is the sum of the lengths of the integer coal units to facilitate the calculation of the coal units.

[0082] In one embodiment, the calculation method of the coal weight carried by the coal unit corresponding to the change in the verticality of the conveyor belt when the verticality gradually moves from no load to full load is as follows:

[0083] The sag collection device obtains the unloaded state of the conveyor belt and records the initial sag d1 of the conveyor belt through the data processing module;

[0084] The first coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d2 of the first conveyor belt at this time. The sag model calculates the coal weight W1 of the coal unit at this time:

[0085] W1 = k·(d2-d1);

[0086] Where k is a constant;

[0087] The second coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d3 of the second conveyor belt at this time. The sag model calculates the coal weight W2 of the coal unit at this time:

[0088] W2 = k·(d3-d2);

[0089] Repeat the calculation of the vertical change after each increase of the coal unit and calculate the coal weight of each coal unit until the conveyor belt is fully loaded.

[0090] In this embodiment, k is a constant. The value of the constant k is calibrated by experiments to determine the weight change caused by each sag change, so that the weight of coal in each coal unit can be determined according to the weight change, and the weight of coal can be monitored. The weight of coal can be monitored during the transportation process to ensure the accuracy of the coal weight monitoring.

[0091] The experimental verification process of constant k is as follows:

[0092] Initial state: record the initial sag d1 of the conveyor belt when it is unloaded.

[0093] Coal unit of known weight: Place a coal unit of known weight on the conveyor belt and record the sag d2 at this time.

[0094] Calculate the sag change Δd:

[0095] Δd=d2-d1;

[0096] Calculate the constant k: Calculate the constant k using the known weight P and the sag change Δd:

[0097] k = P / Δd.

[0098] In one embodiment, the calculation method of the sag change of the conveyor belt under full load corresponding to the weight of coal carried by the coal unit is as follows:

[0099] The sag state of the conveyor belt is collected with the interaction of the interactive unit as the node, and the sag value change of the conveyor belt between the two supporting points (a1, a2) is determined:

[0100] Get the sag value D before the interaction of the interaction unit f The sag value D after interactionb , calculate the sag change ΔD,

[0101] The sag model calculates the coal weight W at this time:

[0102] W = k·ΔD;

[0103] The sag change value obtained in real time is substituted into the sag model to calculate the corresponding coal weight of each coal unit.

[0104] In this embodiment, the coal weight corresponding to each coal unit is calculated under the full load state, the coal weight corresponding to each coal unit entering between the two support points (a1, a2) and moving out of the two support points (a1, a2) after the conveyor belt is fully loaded is determined, and the position of the coal unit is determined, so as to accurately calculate the coal loading amount corresponding to the loading task.

[0105] In one embodiment, the verticality acquisition device is an image acquisition device, which is installed toward the side of the conveyor belt. The transmitting end and the receiving end of the interactive unit interactively control the image acquisition device to acquire the verticality image of the conveyor belt between two supporting points (a1, a2), and the verticality of the conveyor belt is determined based on the two supporting points (a1, a2) and the verticality distance of the conveyor belt.

[0106] In this embodiment, the verticality change of the conveyor belt is determined by obtaining the changes caused by the coal pressure on the conveyor belt during the conveying process through image acquisition equipment, and the positions of the two supporting points are fixed. Therefore, the verticality change can be accurately calculated only through the vertical position and vertical distance of the conveyor belt.

[0107] In one embodiment, the sag collection device is a pressure unit, which is arranged between the support points (a1, a2) and fixed in position. The change in the sag of the conveyor belt applies pressure to the monitoring end of the pressure unit. The greater the sag of the conveyor belt, the greater the monitoring pressure at the monitoring end of the pressure unit.

[0108] The sag model converts the pressure monitored by the pressure unit into the current sag D p :

[0109] Record the initial pressure value T1 and initial sag D1 of the conveyor belt when there is no coal;

[0110] The sag model calculates the current sag D p :

[0111] D p =D1+j·(T-T1);

[0112] Among them, j is a constant and T is the current pressure value.

[0113] In this embodiment, the value of the constant j is determined by experimentally measuring the pressure change under a known sag. For example:

[0114] Initial sag D1 = 5, cm

[0115] Initial pressure value T1 = 5N

[0116] After loading a coal unit with a known vertical depth of 15 cm, the pressure value T2 = 15N

[0117] Pressure change ΔT = 15N-5N = 10N

[0118] The sag change ΔD = 15cm-5cm = 10cm

[0119] Then the value of constant j is: j = ΔD / ΔT = 10cm / 10N = 1cm / N

[0120] Substitute the real-time pressure value into the formula to calculate the current sag. For example, when the pressure value is T3 = 20N, the current sag D3 is:

[0121] D3=D1+j·(T3-T1)=5cm+1cm / N·(20N-5N)=20cm.

[0122] In this way, the sag of the conveyor belt can be determined by monitoring the pressure using the pressure assembly, and the weight of the coal unit can be further calculated.

[0123] In one embodiment, the method for the dispatching unit to dispatch the coal unit to match the loading equipment is as follows:

[0124] Define loading tasks: set the loading task weights R1, R2, ... Rx of multiple loading devices respectively, where x is the total number of loading devices;

[0125] Get the weight of coal unit: record the weight ri of each coal unit;

[0126] Optimization algorithm selection: Use optimization algorithm to determine the best loading method;

[0127] Automatic scheduling:

[0128] Initialization: Set the current weight of each loading device to 0;

[0129] Loop allocation: traverse each coal unit and allocate the coal unit to the appropriate loading equipment according to the selected optimization algorithm;

[0130] Update Weight: After each dispense, the current weight of the corresponding loading device is updated.

[0131] In this embodiment, commonly used optimization algorithms include:

[0132] Greedy algorithm: Each time, the heaviest coal unit is selected and loaded into the lightest loading device.

[0133] Dynamic programming: construct a two-dimensional array to record the optimal solution for different loading combinations.

[0134] Branch and bound method: Find the optimal solution by building a search tree and pruning it using bound conditions.

[0135] An exemplary, greedy algorithm is as follows:

[0136] defgreedy_load(coal_units,load_tasks):

[0137] # Initialize the current weight of the loading device

[0138] current_loads=[0]*len(load_tasks)

[0139] # Sort coal units by weight from largest to smallest

[0140] coal_units.sort(reverse=True)

[0141] # Allocate coal units

[0142] for coal in coal_units:

[0143] #Find the lightest loading device currently

[0144] min_index=current_loads.index(min(current_loads))

[0145] #Assign coal units to this loading device

[0146] current_loads[min_index]+=coal

[0147] return current_loads

[0148] #Example Usage

[0149] coal_units = [10,20,30,40,50]

[0150] load_tasks = [100,100,100]

[0151] result=greedy_load(coal_units,load_tasks)

[0152] print(result)

[0153] Through the greedy algorithm, the automatic scheduling of coal units can be achieved to ensure that the task weight of each loading equipment is as balanced as possible.

[0154] In one embodiment, the transportation model creates a historical coal transportation volume database, divides the historical coal data volume into multiple coverage ranges, determines the historical coal transportation volume proportion within each coverage range, and calculates the probability of the coal unit carrying the coal weight coverage range;

[0155] In the process of scheduling loading tasks using the optimization algorithm, the weight of coal carried by all coal units on the conveyor belt is obtained for scheduling loading tasks.

[0156] In this embodiment, by predicting the probability of the coal weight in the coal unit, it is possible to analyze the scheduling problem of the coal unit before the verticality calculation is performed to determine the coal weight in the coal unit, so that a better coal unit corresponding to the coal weight can be selected for loading.

[0157] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages:

[0158] 1. During the conveying process of the present invention, the shape change of the conveyor belt is obtained, the amount of coal transported by the conveyor belt is determined according to the shape change, and the loading equipment corresponding to each loading of the conveyor belt is determined according to the coal loading amount required for each loading task. The precise loading amount of each loading equipment is obtained by calculation to avoid excessive differences in loading amounts.

[0159] 2. Determine the loading task at the control end. During the loading process, determine the coal transportation volume between each transportation node in the transportation system. During the loading process, determine the weight entering each loading equipment based on the coal transportation volume. Determine the matching loading equipment based on the change in coal transportation volume between each transportation node.

[0160] 3. During the transportation process of the conveying system, a plurality of interactive units capable of interactive identification are arranged on the inner side of the conveyor belt of the conveying system. The interactive units are used to determine the transportation nodes in the conveyor belt. Under the action of the weight of the coal loaded inside the conveyor belt, the weight borne by the conveyor belt is different, and the coal transportation volume is determined according to the state of the conveyor belt.

[0161] 4. Statistics are collected on the historical coal transportation volume, the frequency of occurrence of different historical coal transportation volumes is obtained, the coal transportation volume is predicted based on the frequency of occurrence of historical coal transportation volumes, and the amount of coal entering the loading equipment each time is determined based on the frequency of occurrence of historical coal volumes, so that the loaded coal volume can be more in line with the set loading task.

[0162] Although the present invention is disclosed in conjunction with the above embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the attached claims.

Claims

1. Intelligent conveying system, characterized in that: include: A conveying unit driven by a driving unit, the conveying unit surface carrying coal and changing a sinking state of a conveyor belt based on the weight of the coal; Interaction unit, used to mark the conveying nodes of the conveyor belt. The intervals between the conveying nodes are the same. The coal carried by the conveyor belt between two adjacent conveying nodes is a coal unit. The interaction unit interactively determines the position of each coal unit. The coal metering unit obtains the shape of the conveyor belt and determines the coal conveying capacity of each coal unit according to the change of the conveyor belt shape of each coal unit; The dispatching unit realizes the conveying position of the loading equipment corresponding to each coal unit according to the loading task, calculates the amount of coal required for each loading task, and determines the conveying of the coal unit according to the remaining loading amount of the loading task. The dispatching unit is also provided with a conveying model for calculating the historical coal conveying amount. The conveying model determines the coal conveying amount of the coal unit entering the conveying unit based on the historical coal conveying amount data; The control end is used to set the loading tasks corresponding to each loading device, monitor the loading progress in real time, and manage the coal inventory.

2. The intelligent conveying system according to claim 1, characterized in that: The interaction unit includes multiple photoelectric sensor transmitting ends or receiving ends evenly installed on the inner side of the conveyor belt, at least one photoelectric sensor receiving end or transmitting end, and a metering module. The multiple photoelectric sensor transmitting ends or receiving ends correspond to at least one photoelectric sensor receiving end or transmitting end. The metering module obtains the receiving signal of the photoelectric sensor receiving end and measures the number of interactions between the photoelectric sensor transmitting end and the receiving end.

3. The intelligent conveying system according to claim 2, characterized in that: The interaction unit also includes a transmission module that interacts with the driving unit. The transmission module obtains the driving parameters of the driving unit and determines the moving speed of the conveyor belt through the driving parameters. The metering module interacts with the transmission module to calibrate the conveying node. The transmitting end and the receiving end are arranged in an inclined manner.

4. The intelligent conveying system according to claim 3, characterized in that: The coal metering unit includes: Sag collection equipment monitors the conveying status of the conveyor belt and the sag change data of the conveyor belt; The data processing module processes the sag change data and extracts the sag values ​​of the conveyor belt at different positions; The sag model is established based on the supporting points (a1, a2) at both ends of the conveyor belt to determine the initial sag of the conveyor belt during the empty process, and the coal weight corresponding to each coal unit is calculated based on the change in the sag value of the conveyor belt during the coal transportation process.

5. The intelligent conveying system according to claim 4, characterized in that: The calculation method of the coal weight carried by the coal unit corresponding to the change in the verticality of the conveyor belt when it gradually moves from no load to full load is as follows: The sag collection device obtains the unloaded state of the conveyor belt and records the initial sag d1 of the conveyor belt through the data processing module; The first coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d2 of the first conveyor belt at this time. The sag model calculates the coal weight W1 of the coal unit at this time: W1 = k.(d2-d1); Where k is a constant; The second coal unit enters between the two support points (a1, a2), and the interactive units interact to obtain the sag d3 of the second conveyor belt at this time. The sag model calculates the coal weight W2 of the coal unit at this time: W2 = k·(d3-d2); Repeat the calculation of the vertical change after each increase of the coal unit and calculate the coal weight of each coal unit until the conveyor belt is fully loaded.

6. The intelligent conveying system according to claim 5, characterized in that: The calculation method of the sag change of the conveyor belt under full load corresponding to the weight of coal carried by the coal unit is as follows: The sag state of the conveyor belt is collected with the interaction of the interactive unit as the node, and the sag value change of the conveyor belt between the two supporting points (a1, a2) is determined: Get the sag value D before the interaction of the interaction unit f The sag value D after interaction b , calculate the sag change ΔD; The sag model calculates the coal weight W at this time: W = k·ΔD; The sag change value obtained in real time is substituted into the sag model to calculate the corresponding coal weight of each coal unit.

7. The intelligent conveying system according to claim 6, characterized in that: The verticality acquisition device is an image acquisition device, which is installed toward the side of the conveyor belt. The transmitting end and the receiving end of the interactive unit interactively control the image acquisition device to acquire the verticality image of the conveyor belt between two supporting points (a1, a2), and determine the verticality of the conveyor belt based on the two supporting points (a1, a2) and the verticality distance of the conveyor belt.

8. The intelligent conveying system according to claim 6, characterized in that: The sag collection device is a pressure unit, which is set between the support points (a1, a2) and fixed in position. The change in the sag of the conveyor belt applies pressure to the monitoring end of the pressure unit. The greater the sag of the conveyor belt, the greater the monitoring pressure at the monitoring end of the pressure unit. The sag model converts the pressure monitored by the pressure unit into the current sag D p : Record the initial pressure value T1 and initial sag D1 of the conveyor belt when there is no coal; The sag model calculates the current sag D p : D p =D1+j·(T-T1); Among them, j is a constant and T is the current pressure value.

9. The intelligent conveying system according to any one of claims 7-8, characterized in that: The dispatching unit dispatches the coal unit and the matching method of the loading equipment as follows: Define loading tasks: set the loading task weights R1, R2, ... Rx of multiple loading devices respectively, where x is the total number of loading devices; Get the weight of coal unit: record the weight ri of each coal unit; Optimization algorithm selection: Use optimization algorithm to determine the best loading method; Automatic scheduling: Initialization: Set the current weight of each loading device to 0; Loop allocation: traverse each coal unit and allocate the coal unit to the appropriate loading equipment according to the selected optimization algorithm; Update Weight: After each dispense, the current weight of the corresponding loading device is updated.

10. The intelligent conveying system according to claim 9, characterized in that: The transportation model creates a historical coal transportation volume database, divides the historical coal data volume into multiple coverage ranges, determines the proportion of historical coal transportation volume in each coverage range, and calculates the probability of a coal unit carrying coal weight coverage range; In the process of scheduling loading tasks using the optimization algorithm, the weight of coal carried by all coal units on the conveyor belt is obtained for scheduling loading tasks.

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