A method and system for distributing powdered compounding agents in tire manufacturing compounding rooms.

Abstract

This invention relates to the field of tire manufacturing technology and discloses a method and system for distributing powdered compounding agents in tire manufacturing compounding rooms. The method includes binding and storing materials to line-side storage locations and storage tanks; initiating a material requisition task based on an unfilled storage tank, which undergoes multi-level verification of inventory, storage location availability, task conflict, and type matching before execution; responding to the task by setting an AGV path and controlling its material handling and resetting, and updating inventory with feedback signals; if all materials are used up after unloading, empty material fixtures are stacked in empty material storage locations; if there are remaining materials, surplus material fixtures are sent to surplus material storage locations, and inventory is updated accordingly. This invention eliminates mis-dispensing by exclusively binding materials to line-side storage locations and verifying type matching; solves material waste and inventory distortion through differentiated recycling of empty and surplus materials; and reduces material occupation on the equipment side through precise AGV delivery, eliminating safety hazards and improving space utilization and 5S management levels.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, and specifically to a method and system for distributing powdered compounding agents in tire manufacturing compounding rooms. Background Technology

[0002] Currently, in the tire manufacturing industry's compounding workshops, the logistics and distribution of powdered compounding agents used in tire manufacturing (such as carbon black, sulfur, accelerators, antioxidants, etc.) generally rely on manual forklifts or hydraulic pallet trucks for material handling. With the development of automated logistics equipment technology, some tire companies have attempted to introduce AGVs to replace traditional manual handling equipment, achieving automated flow of powdered compounding agents from warehouses to compounding rooms. For example, related technologies have disclosed the integration of AGV scheduling systems with MES and WMS systems to achieve an automated logistics operation mode of AGV material picking, automatic delivery, and automatic empty pallet collection, which to some extent reduces the number of personnel required for logistics handling and lowers the labor intensity of operators. However, the existing AGV delivery solutions still have many shortcomings in the practical application of tire industry compounding room scenarios, specifically: First, there is a large accumulation of materials at the production line: Constrained by the traditional operational model of centralized delivery of full materials and centralized collection of empty materials using AGVs, even with the introduction of AGVs for automated handling, operators still habitually pile multiple trays of materials around the equipment at once. This results in a large accumulation of materials, empty tools, and waste packaging materials around the material preparation room. This accumulation not only severely encroaches on the already limited operating space and reduces space utilization, but also poses a significant fire hazard because the waste packaging materials, mostly flammable, are not promptly removed from the area around the equipment.

[0003] Secondly, there is the risk of incorrect material dispensing: The batching room typically contains multiple storage tanks, each corresponding to different types of powdered compounding agents used in tire manufacturing. These tanks are highly similar in appearance and clustered together. Because the storage tanks lack a systematic link between material type and dispensing port, operators rely solely on visual inspection or paper documents to verify material information when pouring materials into the tanks. This can easily lead to visual fatigue, unclear labeling, or operational negligence, resulting in the mistaken dispensing of similar materials (such as carbon black of different particle sizes or different grades of accelerators) into the wrong tank. Incorrect dispensing will directly cause the entire tank of compounding agents to be scrapped, resulting in serious economic losses and product quality incidents.

[0004] Third, there is a lack of management for empty and surplus material tooling: In the batching room, some powdered compounding agents used in tire manufacturing are not completely emptied after unloading (i.e., forming surplus material tooling). The existing AGV system can only identify the recycling of empty pallets or empty tooling, but cannot distinguish between empty and surplus material tooling. This leads to surplus material tooling being treated as empty tooling and returned to the warehouse or incorrectly stacked in the palletizing position, resulting in material waste and distorted inventory data. Simultaneously, the warehouse management system cannot know the specific location of the surplus material and the type and quantity of remaining materials, causing inconsistencies between the inventory data recorded by the WMS system and the actual material storage location, seriously affecting the accuracy of material allocation in subsequent production plans.

[0005] Fourth, the existing AGV delivery system lacks error prevention measures when processing material requests from PDA devices. It simply checks whether the target material is in stock in the warehouse, without comprehensively considering factors such as the availability of the target warehouse area, whether there are any conflicting tasks currently in progress, and whether the requested material type matches the target warehouse location's type attribute. This single-condition verification mechanism can easily lead to multiple AGVs being simultaneously dispatched to the same warehouse area when it is already full or has ongoing tasks, causing path conflicts and task collisions. More seriously, when the requested material does not match the material type bound to the warehouse location, the system cannot proactively intercept it, further exacerbating the risk of incorrect material delivery.

[0006] In view of this, in the high-density homogeneous storage tank environment of tire manufacturing compounding rooms, how to build a system-level error prevention mechanism for the precise distribution of powdered compounding agents for tire manufacturing throughout the entire process, so as to solve the problems of feeding errors caused by the lack of rigid binding between material types and target workstations, inventory distortion caused by the indistinguishability of residual material status, and safety hazards caused by material accumulation under centralized distribution mode, has become an urgent technical problem to be solved in this field. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a method and system for distributing powdered compounding agents in tire manufacturing compounding rooms. This overcomes many shortcomings of existing technologies, improves the 5S management level of the compounding room, eliminates the risk of incorrect delivery of similar materials at the system level, and ensures a high degree of consistency between material information flow and physical flow. The specific technical solution is as follows: A method for distributing powdered compounding agents in a tire manufacturing compounding room, characterized in that the distribution method includes: Step 1: Bind the material type to the location of the line-side storage location and the location of the storage device, and store the binding relationship in the database to obtain a unique material identifier, so that each type of powdered compounding agent for tire manufacturing corresponds to a unique line-side storage location and storage device; Step 2: Based on the location of the storage device that is not full and the material's unique identifier, generate a material requisition task for the corresponding type of powdered compounding agent for tire manufacturing; perform multi-level error prevention checks on the material requisition task, which includes at least: inventory determination, storage location availability determination, task conflict determination, and type matching determination; only when all determinations pass, confirm the execution of the material requisition task; otherwise, do not execute the material requisition task. Step 3: Based on the determined material requisition task and the inventory information of the storage warehouse, determine the material picking location, unloading location, and movement path of the AGV. The unloading location is the target line-side storage location. Step 4: Control the AGV to perform material picking, handling, unloading and resetting, and send material picking signal and unloading signal to the database when material picking and unloading are completed respectively. The database updates the storage inventory information accordingly and marks the target line edge storage location as occupied, and then ends the current material picking task. Step 5: Before pouring the target material from the tooling into the target storage device, verify that the binding relationship between the target material and the target storage device is consistent; after successful verification, the pouring operation is allowed, and the target material is put into the target storage device; after the pouring is completed, execute the tooling recovery task. If all the target material has been dumped, it is determined to be an empty tooling. Then, the AGV is dispatched to move the empty tooling to the empty storage location, and the database is fed back to mark the target line-side storage location as idle, and the tooling recycling task ends. If the target material is not completely disposed of, it is determined to be a leftover tooling. The dispatch AGV moves the leftover tooling along with the remaining powdered compounding agent for tire manufacturing to the leftover storage location. The database records the storage location of the leftover tooling, the type and quantity of the remaining powdered compounding agent for tire manufacturing, marks the target line-side storage location as idle, and ends the tooling recycling task.

[0008] Furthermore, the storage device includes storage tanks in the tire compounding room for storing different types of powdered compounding agents for tire manufacturing and feeding ports connected to the storage tanks. The line-side storage area is a temporary storage area for materials located adjacent to the feeding port. The binding process specifically includes: assigning a unique tank code to each storage tank and feeding port, assigning a unique storage location code to each line-side storage location, and assigning a unique pallet code to each type of powdered compounding agent used in tire manufacturing; establishing a one-to-one mapping relationship table 1 between types of powdered compounding agents used in tire manufacturing and pallet codes; establishing a one-to-one mapping relationship table 2 between tank codes, storage location codes, and pallet codes, and storing all mapping relationship tables in the database; The material-specific identifier is a composite identifier generated based on mapping table 2, which includes tank code, storage location code, and pallet code.

[0009] Furthermore, generating material requisition tasks for the corresponding types of powdered compounding agents used in tire manufacturing specifically includes: The PDA device reads the material-specific identifier corresponding to the storage device that is not full, and obtains the requested material type. Based on the requested material type, a material requisition task is generated, and the task number of the material requisition task, the requested material type and quantity, and the target line-side storage location corresponding to the unfilled storage device are packaged into a data packet and sent to the database. The database parses the data packet to obtain the requested material information.

[0010] Furthermore, multi-level error prevention checks specifically include: Inventory determination: Determine whether the target material exists in the storage warehouse and whether the inventory quantity matches the quantity requested in the material requisition task; Storage location vacancy determination: Determine whether all target line-side storage areas are vacant, where the target line-side storage area is the storage area where the target line-side storage location corresponding to the storage device that is not full is located. Task conflict determination: Determine whether there is an ongoing material requisition task or tooling recovery task within the target line edge storage area; Type matching determination: Determine whether the type of material requested by the material requisition task is consistent with the type of material pre-bound to the target line-side storage location; The material calling task is executed only if the results of all four judgment steps are yes; If any of the four judgment steps results in a negative result, the database generates the corresponding error reason and sends it to the operator for processing, and the material requisition task is not executed until the multi-level error prevention check is passed.

[0011] Furthermore, based on the determined material requisition task and the inventory information of the storage warehouse, the specific steps for determining the AGV's material picking and unloading locations include: the database receiving the requested material information from the material requisition task, querying the storage warehouse for material locations that match the requested material information and are available in inventory, according to the principle of "first in, then use," and determining the material location with the earliest inbound time as the material picking location, and determining the target line-side storage location specified by the material requisition task as the unloading location.

[0012] Further, determining the movement path of the AGV includes: the AGV scheduling system selecting the AGV closest to the material picking location from the idle AGVs as the execution AGV based on the material picking location, and switching the execution AGV to the working state; the AGV scheduling system selecting the running track from the material picking location to the unloading location as the movement path from the preset set of AGV running tracks.

[0013] Furthermore, controlling the AGV to perform material picking, handling, unloading, and resetting specifically includes: After the AGV scheduling system drives the AGV to pick up materials from the picking location, the AGV sends a picking completion signal to the database to update the inventory information in the storage warehouse. After receiving the material picking completion signal, the AGV scheduling system drives the AGV to move along the moving path to the unloading position. After the AGV completes unloading, it sends an unloading completion signal to the database to mark the target line-side storage location as occupied. After receiving the unloading completion signal, the AGV scheduling system switches the AGV's working status from working to idle and controls the AGV to move to the nearest rest station.

[0014] Furthermore, when all target materials have arrived and the tooling is determined to be empty, a tooling recovery task is executed: The PDA device is used to establish an empty tooling retrieval task for the target line-side storage location, so as to notify the AGV scheduling system to schedule AGVs to move the empty tooling from the target line-side storage location to the empty tooling storage location. After the AGV takes away the empty tooling, it sends a picking completion signal to the database to mark the target line-side storage location as idle. After the AGV unloads the empty material tooling, it sends an unloading completion signal to the AGV scheduling system and database, so that the AGV scheduling system switches the AGV status to idle, and the database updates the inventory information of the empty material storage location and ends the empty material tooling recycling task.

[0015] Furthermore, if the target material is not completely disposed of and is determined to be leftover material in the tooling, a tooling recovery task is executed: The task of recycling surplus tooling at the target line-side storage location is established through the PDA device. The database is notified to send the task number of the surplus tooling recycling task, the type and quantity of the remaining powdered compounding agent for tire manufacturing, and the location of the target line-side storage location as the starting point to the database. The database determines the endpoint based on the type and quantity of remaining powdered compounding agents for tire manufacturing and the nearest remaining material storage location to the starting point, and sends the starting point and endpoint to the AGV scheduling system to schedule AGVs to move the remaining material tooling from the target line-side storage location to the remaining material storage location; After the AGV removes the remaining material from the tooling, it sends a pickup completion signal to the database to mark the target line-side storage location as idle. After the AGV unloads the remaining material, it sends an unloading completion signal so that the AGV scheduling system switches the AGV status to idle, the database updates the inventory information of the remaining material storage location, and the remaining material recycling task ends.

[0016] A delivery system comprising: The data management module is used to bind material types with the location of the line-side storage location and the location of the storage device, and store the binding relationship in the database to obtain a unique material identifier, so that each type of powdered compounding agent for tire manufacturing corresponds to a unique line-side storage location and storage device. The material requisition module is used to generate material requisition tasks for the corresponding type of powdered compounding agent for tire manufacturing based on the location of the storage device that is not full and the material's unique identifier. The error prevention and verification module is used to perform multi-level error prevention and verification on the material requisition task. The multi-level error prevention and verification includes at least: inventory determination, storage location availability determination, task conflict determination, and type matching determination; the material requisition task is confirmed to be executed only when all determinations pass; otherwise, the material requisition task is not executed. The AGV displacement module is used to determine the AGV's picking position, unloading position, and movement path based on the determined material requisition task and the inventory information of the storage warehouse. The AGV scheduling module is used to control the AGV to perform material picking, handling, unloading and resetting. When material picking is completed and unloading is completed, it sends material picking signal and unloading signal to the database respectively. The database updates the storage inventory information accordingly and marks the target line edge storage location as occupied, and then ends the current material picking task. The verification module is used to verify whether the binding relationship between the target material and the target storage device is consistent before the target material is poured from the tooling into the target storage device; after the verification is passed, the pouring operation is allowed to be performed to put the target material into the target storage device. The recycling module is used to perform tooling recycling tasks after the material unloading is completed.

[0017] Furthermore, the recycling module includes: The empty material tooling recycling module is used to move the empty material tooling to the stacking position after all the target material has been dumped, and then to update the inventory information of the storage warehouse, the material information of the target line-side storage position, and end the empty material tooling recycling task. The surplus material tooling recycling module is used to move surplus material tooling to the surplus material storage location when the target material has not been completely disposed of. The module also updates the database with the inventory information of the storage warehouse, the material information of the target line-side storage location, and ends the surplus material tooling recycling task.

[0018] As can be seen from the above technical solution, the present invention has the following beneficial effects: This invention eliminates the risk of mis-dispensing similar materials by binding material types to line-side storage locations and storage tanks and storing them in the WMS system, combined with multi-level error-proofing checks that determine the matching of material types with line-side storage location attributes. By differentiating between empty and surplus material tooling and adopting differentiated recycling paths, it solves the problem of material waste and inventory data distortion caused by treating surplus material tooling as empty tooling. At the same time, through AGV on-demand precise delivery, the space occupied by material pallets on the equipment side is reduced to a single storage location, significantly reducing material accumulation, eliminating fire safety hazards, and improving space utilization and on-site 5S management level. Attached Figure Description

[0019] Figure 1 This is a flowchart of Embodiment 1 of the present invention; Figure 2 This is a flowchart of the multi-level error prevention check in step two; Figure 3 Layout diagram of storage warehouse, line-side storage area, material storage device and AGV; Figure 4 This is a side view of the storage device.

[0020] In the diagram: 1. Storage warehouse; 11. Empty material storage location; 12. Surplus material storage location; 13. Full material storage location; 2. Line-side storage area; 21. Line-side storage location; 22. Rest station; 3. Storage device; 31. Storage tank; 32. Cylinder; 33. Cover plate; 34. Feeding port; 4. RFID tag; 5. AGV; 7. Material pallet; 8. RFID reader. Detailed Implementation

[0021] 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.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0023] Example 1 like Figure 1As shown, this embodiment is a method for distributing powdered compounding agents in a tire manufacturing compounding room. The distribution method includes five steps, specifically including the following: Step 1: In this embodiment, the tire compounding room is equipped with 24 similar-looking and centrally arranged storage tanks 31, arranged in 6 rows and 4 columns. These tanks are used to store different types of powdered compounding agents for tire manufacturing, such as carbon black, sulfur, accelerators, and antioxidants. Each storage tank 31 has a designated edge storage location 21, which is a temporary storage area adjacent to the storage tank 31. This area is used to temporarily store the powdered compounding agents for tire manufacturing to be added to the corresponding storage tank 31, as well as the material pallets 7 used to hold these agents. Alternatively, an edge storage location 21 can be designated near every two adjacent storage tanks 31 to improve space utilization. Only one storage location code needs to be bound to two sets of tank codes and pallet codes. Before unloading, the staff uses a PDA device to read the pallet code placed in the edge storage location and then determines the corresponding storage tank 31 according to the one-to-one mapping table 2. The following text uses one storage location code bound to one set of tank codes and pallet codes.

[0024] Specifically, the database includes a WMS (Warehouse Management System) and a MES (Manufacturing Execution System), which are connected via a network using conventional technology. To achieve system-level error prevention binding, basic data configuration is first performed in the WMS system. Specifically, this includes assigning a unique material pallet 7 to each type of powdered compounding agent for tire manufacturing. For example, a yellow material pallet 7 carries sulfur, and "S" represents sulfur. It is assigned a unique pallet code, such as T01, so that the types of powdered compounding agents for tire manufacturing are bound to the types of material pallets 7 to form a one-to-one mapping relationship, such as "S-T01", and stored in the WMS system. At the same time, an RFID tag 4 carrying the type of material pallet 7 can be installed on the bottom of the material pallet 7. The RFID reader writes the corresponding type of powdered compounding agent for tire manufacturing into the RFID tag 4. After reading the RFID tag 4, the type of powdered compounding agent for tire manufacturing can be obtained immediately. This facilitates verification during AGV5 handling, verification by the WMS system when entering storage warehouse 1, and verification when the material pallet 7 is placed at the line-side storage location 21, thereby ensuring the accuracy of the type of powdered compounding agent for tire manufacturing during distribution, warehousing, and feeding.

[0025] Assign a unique tank code to each storage tank 31 in the batching room, for example, setting storage tank 31 as C01; record the pallet code of the material pallet 7 corresponding to each type of storage tank 31 in the data management module of the WMS system, such as binding C01 to the corresponding pallet code: T01; assign a unique storage location code to each line-side storage location 21, for example, the storage location adjacent to storage tank 31 "C01" can be coded as KC01, and mark its physical coordinates in the data management module of the WMS system (the position coordinates of this line-side storage location 21 in the tire manufacturing batching room, and the origin of the coordinate system can be selected as the center position of the tire manufacturing batching room). Subsequently, establish a one-to-one mapping relationship table 2 between tank codes, storage location codes and pallet codes in the WMS system, such as containing the following record: tank code "C01", bound to storage location code "KC01", allowed to store pallet code "T01". The one-to-one mapping table 2 is stored in the WMS system's database, enabling the system to logically associate the 7 types of material pallets with their unique placement locations (storage tank 31) and dedicated material temporary storage locations (line-side storage location 21). Based on the one-to-one mapping table 2, the WMS system automatically generates a unique material identifier, which is a composite identifier containing the tank code, storage location code, and pallet code, such as "C01-KC01-T01". This identifier directly points to a specific storage tank 31, a specific line-side storage location 21, and the 7 types of material pallets that are allowed to be stored there.

[0026] As a preferred embodiment, to physicalize the logical binding relationships within the WMS system, a machine-readable label is further fabricated and fixed to the feeding port 34 of each storage tank 31. This label carries the information contained in the aforementioned material-specific identification. The machine-readable label can be a QR code label or an RFID tag 4. Human-readable text information, such as "C01-KC01-T01," can also be printed on the label surface. During fabrication, the label printing function provided by the WMS system generates a QR code containing the pallet code, tank code, and corresponding storage location code of the line-side storage location 21 based on the data in the one-to-one mapping table 2. This QR code label is then firmly affixed to a prominent position directly above or to the side of the feeding port 34 of the storage tank 31. For the RFID tag 4, the corresponding material-specific identification code is written into the RFID tag 4 using a card issuing device, and then installed in a prominent position directly above or to the side of the feeding port 34.

[0027] Step Two: As Figure 2As shown, when an operator identifies that a storage tank 31 is not full and needs to be replenished during an inspection, the operator uses a portable PDA device to activate the material ordering module. The operator scans the material-specific identifier set on the storage tank 31 through a reading module (such as a camera or RFID reader). This material-specific identifier can be a QR code, barcode, or RFID electronic tag. After the PDA device parses the material-specific identifier, it obtains the corresponding material pallet type 7, and then obtains the information on the type of powdered compounding agent for tire manufacturing that needs to be replenished. At the same time, the operator can input the quantity of the material to be ordered into the PDA device, such as 10 bags of powdered compounding agent for tire manufacturing.

[0028] The operator initiates a material requisition request to the MES system via the PDA device interface. Upon receiving the request, the MES system automatically parses the target destination of this delivery task—the location code of the line-side storage location 21 uniquely corresponding to the unfilled storage tank 31—based on the obtained pallet codes of the seven types of material pallets. Subsequently, the MES system generates a unique material requisition task number and packages this task number, the pallet codes of the seven types of material pallets requested, the required quantity, and the location code of the target line-side storage location 21 into a task data package. This data package is then sent to the WMS system via the network interface, thus achieving automated connection from on-site requirement identification to system-generated material requisition task, avoiding manual input errors.

[0029] After receiving the material requisition task data packet from the MES system, the WMS system immediately activates the error prevention and verification module, triggering a multi-level error prevention and verification mechanism. This mechanism automatically checks six key conditions sequentially to ensure the feasibility and security of the task. Specifically: The first step of the judgment: The WMS system calls the data management module to access the inventory information of the tire manufacturing powdered compounding agent storage warehouse 1 under its management. It searches the full storage location 13 of storage warehouse 1 by pallet code to see if there is a target material pallet 7 with the same pallet code as the pallet requested in the material requisition task, and whether the actual inventory quantity of the target material pallet 7 is greater than or equal to the quantity requested in the material requisition task (e.g., 10 bags of tire manufacturing powdered compounding agent). This prevents invalid or delayed delivery due to insufficient inventory from the source, ensuring that tire manufacturing powdered compounding agent is available for every requisition. Storage warehouse 1 includes upper and lower storage locations. The material pallets 7 form 5 layers of support brackets for placing tire manufacturing powdered compounding agents. A full storage location 13 means that there is one material pallet 7 on both the upper and lower storage locations, and each material pallet 7 has 4 bags of the same type of tire manufacturing powdered compounding agent on its 5-layer support brackets.

[0030] The second judgment: The WMS system calls the data management module to query the real-time occupancy status of the target line-side storage area 2 (one storage area contains six line-side storage locations) where the target line-side storage location 21 is located. The judgment condition is whether all storage locations in the target line-side storage area 2 are currently in an empty state (i.e., no material pallets 7 are occupied). This addresses the problem of large-scale accumulation of materials at the line-side in existing technologies. By forcibly requiring the target line-side storage area 2 to be completely empty before allowing new tasks to be issued, the system blocks the habitual operation of stacking multiple pallets of materials at the line-side at one time, ensuring unobstructed working space and reducing fire hazards.

[0031] The third step: The WMS system calls the data management module to check the task execution status table associated with the target line-side storage area 2, and determines whether there are any issued but not yet completed tasks in the target line-side storage area 2 (such as other AGV5s performing unloading tasks or tooling recycling tasks in progress). This determination is used to avoid path conflicts and task collision risks caused by multiple AGV5s being simultaneously dispatched to the same narrow line-side storage area, ensuring the order and safety of logistics operations.

[0032] The fourth step of the judgment: The WMS system calls the data management module to decompress the data packet of the material requisition task sent by the MES system, and extracts the requested material type and the storage location code of the target line-side storage location 21. This is then compared with the pallet code pre-stored in the WMS system for the target line-side storage location 21, and the material type bound to that pallet code is compared to determine if they are completely consistent. This prevents the leakage of incorrect materials being added to the storage tank 31. If the two do not match, the WMS system will actively intercept the material requisition task, thereby avoiding an accident where an entire tank of powdered compounding agents for tire manufacturing is scrapped due to incorrect material addition.

[0033] The above six judgment steps are automatically executed by the WMS system in a preset logical order. The WMS system confirms that the material requisition task has passed multi-level error prevention verification only if the results of the first to fourth judgments are all "yes". At this time, the WMS system officially marks the material requisition task as executable, and then executes the material requisition task according to the subsequent steps. If any of the first to fourth judgments is "no" during the judgment process, the WMS system will immediately stop the subsequent judgments and generate an error message corresponding to the specific item that failed the judgment. For example, if the first judgment is no, it will prompt "Target material (material pallet 7) inventory is insufficient, current inventory is X"; if the second judgment is no, it will prompt "Target lineside storage area 2 is not completely empty, please recycle empty or surplus material fixtures first"; if the third judgment is no, it will prompt "Target lineside storage area 2 has an ongoing task, please wait for the task to be completed before requisitioning"; if the fourth judgment is no, it will prompt "The type of material requisitioned does not match the type bound to the target storage location, please check and rescan the material's unique identifier". The notification message is transmitted back to the MES system in real time via an interface and ultimately pushed to the PDA device of the operator who initiated the task. Simultaneously, the material requisition task is set to a non-execution status by the WMS system and will not proceed to the subsequent delivery stage.

[0034] Once the operator obtains the specific cause of the error through the PDA device, they can take targeted on-site measures. For example, they can clear empty tooling from storage area 2 at the target line, wait for other AGVs (Automated Guided Vehicles) to complete their tasks and leave, or check if the material identification label on storage tank 31 is incorrectly affixed. After the problem is resolved, the operator can scan the material identification label on storage tank 31 again using the PDA device to re-initiate the material requisition task. The system will then re-execute the above verification process until all conditions are met and the task is successfully issued. This achieves precise on-demand delivery of powdered compounding agents for tire manufacturing, effectively overcoming problems such as errors in manual verification, disorderly accumulation at the line, and multi-task conflicts in existing technologies, thus improving the automation level and safety of logistics in the batching workshop.

[0035] Step 3: As Figure 3 As shown, this embodiment has six line-side storage areas 2, each line-side storage area 2 including six line-side storage locations 21, and each line-side storage location 21 corresponds to a storage device 3. The WMS system first determines the type of powdered compounding agent for tire manufacturing based on the pallet code of the material requisition task data packet. Secondly, the AGV scheduling system maintains an AGV5 status table, which records the current status (idle, working, charging, fault) and location coordinates of each AGV5 in real time. At the same time, it stores a set of AGV5 running tracks pre-generated according to the physical layout of the workshop. The running tracks are sets of directed line segments, constituting all legal paths that the AGV5 can travel.

[0036] When an operator needs to replenish a specific storage tank 31 with powdered compounding agents for tire manufacturing, they scan the QR code or RFID tag 4 carrying the material's unique identifier using a PDA device. On the PDA device's interface, they select the type and quantity of the powdered compounding agent to be added. The type of powdered compounding agent is determined by the pallet code in the material's unique identifier according to a one-to-one mapping table, generating a material requisition task. This requisition task is sent to the MES system in the form of a data message, containing three key fields: the pallet code for the material pallet type 7, the required quantity of the material, and the location code of the target line-side storage location 21.

[0037] After receiving and parsing the material requisition task data packet, the MES system sends the data packet to the WMS system, requesting the WMS system to allocate a full storage location that matches the requisition task, thereby determining the AGV5's material picking location. Upon receiving the material information, the WMS system executes its internal logic to determine the AGV5's material picking and unloading locations. This process is as follows: First, the WMS system, through its data management module, queries its inventory database using pallet codes as indexes to find all storage locations containing pallets of the corresponding type of material (pallets 7) with an available inventory status. This includes all storage locations containing the corresponding type of powdered compounding agent for tire manufacturing with an available inventory status. From the query results, the WMS system further filters out storage locations where the current material inventory quantity is greater than or equal to the quantity required by the material requisition task (e.g., full storage location 13 and surplus storage location 12) to ensure that a single storage location can meet the material retrieval requirement, avoiding increased path complexity for the AGV5 to retrieve materials across storage locations. If multiple storage locations meet the above quantity criteria, the WMS system, based on the first-in, first-out (FIFO) material management principle, sorts these storage locations in ascending order by entry time and selects the storage location with the earliest entry time (i.e., the longest storage time) as the retrieval location for this task, determining its physical coordinates on the electronic map as the AGV5's retrieval position. Simultaneously, the WMS system directly extracts the storage location code of the target line-side storage location 21 from the material requisition task data package and determines its corresponding coordinates as the AGV5's unloading position. This mechanism enables precise batch-level traceability and automatic first-in-first-out (FIFO) control of outbound materials, effectively avoiding the risk of expiration due to long-term storage and providing reliable source data support for the subsequent verification of material types added to storage tank 31. After setting the material picking and unloading positions, the WMS system generates a material picking instruction containing the picking and unloading positions and sends it to the AGV scheduling system. Upon receiving the material picking instruction, the AGV scheduling system sets the movement path of AGV5 through the AGV displacement module and assigns the execution vehicle. The specific process is as follows: The first step involves the AGV scheduling system polling its maintained AGV5 status table to select all AGV5s currently in an idle state, forming a candidate AGV5 set. Next, the AGV scheduling system obtains the real-time location coordinates of each candidate AGV5, calculates the distance between each AGV5 and its picking location, compares the calculation results of all candidate AGV5s, and selects the AGV5 closest to the picking location as the vehicle to perform the current picking task. Once selected, the AGV scheduling system immediately sends a status switch command to that AGV5, updating its status from idle to working, and locks the vehicle in the AGV5 status table to prevent the same vehicle from being repeatedly scheduled by subsequent parallel tasks, thus avoiding command conflicts.

[0038] The second step involves the AGV scheduling system initiating a path planning algorithm to search for all feasible paths between the material pickup and unloading positions from its pre-defined set of AGV5 running tracks. This track set is stored as a directed connected graph, where nodes represent key locations (such as intersections), and edges represent the actual travel segments between nodes with weights (usually lengths). During path planning, the AGV scheduling system employs Dijkstra's algorithm. In the directed graph formed by the AGV5 running tracks, with the material pickup position as the starting node and the unloading position as the target node, it calculates the path with the minimum total weight, which is then used as the movement path for this task. This movement path consists of a series of ordered and fixed track segments and passing nodes. When multiple AGVs are in operation, the AGV scheduling system adjusts their speeds to prevent collisions.

[0039] The third step involves the AGV scheduling system sending the planned movement path to the executing AGV5 via wireless local area network. The AGV5 then parses the path data to determine the material pickup location, unloading location, and movement path.

[0040] Step 4: The AGV scheduling system drives the AGV5 to move to the designated picking position via the AGV5 scheduling module. After the AGV5 arrives at the picking position, it uses its onboard stacking mechanism (unmanned forklifts are a conventional technology and will not be elaborated here) to pick up the material pallet 7. The moment the picking action is completed, the AGV5 sends a picking completion signal back to the AGV scheduling system. The AGV scheduling system immediately sends the picking completion signal to the WMS system. The WMS system parses the picking completion signal, deducts the picking location and the corresponding material inventory quantity in storage 1, and records the picking timestamp to complete the real-time update of inventory information.

[0041] Subsequently, the AGV scheduling system, through the AGV5 scheduling module, invokes the pre-planned movement path from the current material picking position to the target line-side storage location 21, controlling the AGV5 to perform the transport. After the AGV5 arrives at the target line-side storage location 21, it initiates the unloading procedure, smoothly placing the material pallet 7 into the target line-side storage location 21. After unloading is complete, the AGV5 confirms it is empty via a weight sensor and sends an unloading completion signal to the AGV scheduling system. The target line-side storage location 21 is equipped with an RFID reader, and the bottom of the material pallet 7 is equipped with an RFID tag 4 to identify the type of powdered compounding agent for tire manufacturing it carries. When the material pallet 7 is placed in the target line-side storage location 21, the RFID reader reads the RFID tag 4 to check for a match. If a match is found, the AGV5 sends an unloading completion signal to the AGV scheduling system; if a mismatch is found, the AGV5 sends an alarm to the PDA device to alert the operator.

[0042] Upon receiving the unloading completion signal, the AGV scheduling system performs two key operations in parallel. First, it executes AGV5 reset control: the AGV5 scheduling module immediately changes the AGV5's working status flag from "working" to "idle," making it a schedulable resource again. Simultaneously, based on the current unloading completion position coordinates of the AGV5 (target line-side storage location 21), it traverses the coordinates of multiple pre-set rest locations 22 on the map, calculates the path cost using Dijkstra's algorithm, selects the closest rest location 22 that is not occupied by other AGVs as the reset target, plans the reset path, and controls the AGV5 to automatically drive into the rest location 22 and wait, thus avoiding the AGV5 unnecessarily occupying the track section or line-side storage area 2 after unloading. Second, it synchronously feeds back the task signal: the AGV scheduling system forwards the unloading completion signal to the WMS system. The WMS system, based on the unloading position of the task (target line-side storage location 21), marks the target line-side storage location 21 as occupied. Following this, the WMS system forwards the unloading completion signal to the MES system. Upon receiving the signal, the MES system executes a closed-loop operation, changing the status of the previously issued material retrieval task from "in progress" to "completed," enabling the production execution layer to accurately perceive the material readiness status. The generation and transmission of the material retrieval completion and unloading completion signals ensure strict consistency between the WMS system's inventory data, the status of line-side storage location 21, and the on-site working status. Immediately idling the AGV5 that has just completed unloading and scheduling it to the nearest rest station 22 effectively prevents path congestion and safety hazards caused by AGV5 arbitrarily lingering, while also allowing the AGV5 to quickly engage in the next task, improving the overall system operating efficiency.

[0043] Step 5: Before pouring the target material from the tooling into the target storage device, verify whether the binding relationship between the target material and the target storage device is consistent. Specifically, this includes: an RFID tag 4 reader is installed on the ground of the line-side storage location 21, corresponding to a single storage tank 31. The bottom of the material pallet 7 is bolted with its own RFID tag 4. The RFID tag 4 contains the pallet code corresponding to the type of material pallet 7 and the type of tire manufacturing powdered compounding agent corresponding to that type of material pallet 7. When the AGV5 moves the material pallet 7 and the tire manufacturing powdered compounding agent to the line-side storage location 21, the RFID tag 4 reader of the line-side storage location 21 can read the RFID tag 4 at the bottom of the material pallet 7. When the information matches, it means that the type of tire manufacturing powdered compounding agent corresponds to the line-side storage location 21 and the storage tank 31. If the information does not match, notify the operator to check and solve the problem. This allows operators to pour the correct powdered compounding agent for tire manufacturing into the storage tank 31 through the feeding port 34 before actual material feeding. Simultaneously, they can scan the material barcode on the packaging to be fed using a PDA device (handheld terminal) for verification, recording the quantity of fed packaging for subsequent inventory updates in the WMS system. Secondly, operators can also use a PDA device to scan the machine-readable label with a unique material identifier next to the feeding port 34 to obtain the information on the only permitted material type for the current storage tank 31. Then, they can scan the material barcode on the packaging to be fed, which carries information on the type and quantity of the powdered compounding agent for tire manufacturing. The system automatically compares the two: if the type of powdered compounding agent matches the type of material bound to the storage tank 31, the operation is allowed, and the quantity of fed packaging is recorded; if they do not match, the handheld terminal immediately issues an audible and visual alarm and displays an error message. This proactive interception of errors before the feeding action occurs fundamentally eliminates the risk of incorrect material feeding caused by manual visual verification.

[0044] Specifically, the empty material tooling recycling task is the recycling control logic when all the target material has been emptied and only empty material tooling (i.e., empty material pallet 7) remains. This includes: after the operator pours all the material from the target line-side storage location 21 into the storage device 3, leaving only empty material tooling at that location, the empty material tooling recycling module is executed. The operator creates an empty material tooling recycling task via a PDA device. Secondly, the PDA device has operation options corresponding to empty material tooling recycling. After the operator clicks this option, the PDA device generates an empty material tooling recycling task instruction. This instruction carries a task type identifier (empty material tooling recycling task) and the starting point, i.e., the storage location code of the current target line-side storage location 21. Thirdly, the PDA device sends this task instruction to the AGV scheduling system to notify the AGV scheduling system to execute the empty material tooling recycling.

[0045] After receiving the empty tooling retrieval task instruction, the AGV scheduling system, based on the task's starting position and the position information of all currently idle AGVs, uses a preset path planning algorithm to select the idle AGV closest to the task's starting point as the executing AGV and issues the transport task to it. This transport task includes the coordinate information of the material picking starting point (target lineside storage location 21) and the unloading endpoint (empty material storage location 11). Empty material storage location 11 is a pre-defined fixed area within storage 1 specifically for storing empty tooling, and its coordinate information is pre-stored in the AGV scheduling system.

[0046] The dispatched AGV5 starts from its current rest station 22 or its current position, selects a path from the preset set of moving tracks via the AGV scheduling system that connects its current position to its starting point, moves to the target line-side storage location 21, and completes the action of retrieving the empty material tooling. After successfully retrieving the empty material tooling, the AGV5 sends a retrieval completion signal to the AGV scheduling system. The AGV scheduling system forwards this signal to the WMS system, or the AGV5 sends the signal directly to the WMS system (depending on the specific architecture of the system integration). After receiving the retrieval completion signal, the WMS system marks the target line-side storage location 21 as idle, that is, records that the line-side storage location 21 is currently in an empty state and can be used for the next material delivery task.

[0047] Subsequently, the AGV5, carrying the empty tooling, selects a path from the preset set of moving tracks based on its starting and ending points via the AGV scheduling system, and moves to the empty material storage location 11. Upon arrival, it performs the unloading action of the empty tooling. After unloading is completed, the AGV5 sends an unloading completion signal to the AGV scheduling system and the WMS system. Upon receiving this signal, the AGV scheduling system switches the task status of the AGV5 from working to idle and can drive the AGV5 to autonomously move to the nearest rest station 22 to wait for further instructions. At the same time, upon receiving the unloading completion signal, the WMS system updates the inventory information of the empty material storage location 11, for example, by increasing the count of an empty tooling and marking this empty tooling retrieval task as completed.

[0048] The residual material tooling recycling task is the recycling control logic when the target material is not completely poured out, forming residual material tooling (residual material tooling includes material pallet 7 and remaining powdered compounding agent for tire manufacturing). Specifically, it includes: when the operator pours only a portion of the material (e.g., several bags of material) from the target line-side storage location 21 into the storage device 3, and there is still remaining powdered compounding agent for tire manufacturing in the storage location, residual material tooling is formed. At this time, the residual material tooling recycling module is executed. The operator creates a residual material tooling recycling task through the PDA device. The PDA device has operation options corresponding to residual material tooling recycling. After the operator clicks the option, the PDA device generates a residual material tooling recycling task instruction. This instruction carries the task type identifier (residual material tooling recycling task), task number, quantity of remaining powdered compounding agent for tire manufacturing (the operator verifies the number of bags of material that have been poured out through the PDA device, and the total number minus the number of bags that have been verified gives the number of remaining bags), and task starting point (target line-side storage location 21).

[0049] The PDA device sends the scrap tooling recycling task instruction to the MES system. The MES system, as the information system at the production execution level, packages the task number, remaining quantity, and starting point and sends it to the WMS system, requesting the WMS system to allocate storage locations for the scrap tooling. Upon receiving the request, the WMS system executes the storage location allocation logic: First, it determines the scale of scrap tooling to be stored based on the remaining quantity; second, in the pre-configured scrap storage area of ​​storage 1, it finds the free scrap storage location 12 closest to the starting point coordinates based on the real-time occupancy status of all scrap storage locations 12, and determines this location as the endpoint of this scrap tooling recycling task; finally, the WMS system packages the starting point (target line-side storage location 21) and endpoint (allocated scrap storage location 12) information and sends it to the AGV scheduling system.

[0050] After receiving a task to collect surplus material and tooling, which includes a start point and an end point, the AGV scheduling system calls upon the nearest idle AGV5 to the start point and issues it a transport task. The AGV5 selects a path from a pre-set set of tracks, moves to the start point, and retrieves the surplus material and tooling. Upon successful retrieval, the AGV5 sends a retrieval completion signal to the WMS system. Upon receiving this signal, the WMS system marks the target line-side storage location 21 as idle.

[0051] Next, the AGV5 carrying the surplus material tooling moves along the path to the endpoint (i.e., the surplus material storage location 12 assigned by the WMS system) and performs the unloading action. After unloading is completed, the AGV5 sends an unloading completion signal, which is sent to the AGV scheduling system. The AGV scheduling system, on the one hand, switches the AGV5's status to idle and drives it to the nearest rest station 22; on the other hand, it forwards the unloading completion signal to the WMS system. Upon receiving the unloading completion signal, the WMS system updates the inventory information of the surplus material storage location 12, including recording the existing pallet code, material type, quantity of remaining powdered compounding agent for tire manufacturing, and entry time, thereby ensuring the accuracy of inventory data. At the same time, the WMS system sends the unloading completion signal to the MES system, which updates the status of this surplus material tooling recycling task to completed, thus completing the entire task loop. This enables independent and precise management of surplus material tooling, allowing the WMS system to monitor the precise quantity and storage location of surplus materials in real time. This solves the technical problems of material waste and inventory data distortion caused by treating surplus materials as empty materials in traditional solutions. It also provides an accurate data basis for prioritizing the consumption of surplus materials in subsequent production planning. Furthermore, it allows for the orderly and precise automated separation and processing of empty and surplus materials generated in the batching room due to work habits, reducing the burden of manual judgment and the intensity of handling labor for operators. More importantly, it ensures that the inventory data in the WMS system is consistent with the actual on-site condition, improving the accuracy of inventory data and the effectiveness of subsequent material allocation.

[0052] Next, the operator collects the same type of tire manufacturing powdered compounding agents in the surplus material storage location 12. After the material is full, it is transported to the full material storage location 13 corresponding to that type of tire manufacturing powdered compounding agent. At the same time, the operator controls the WMS system to update the inventory information of the surplus material storage location 12 and the full material storage location 13.

[0053] Example 2 This embodiment is a delivery system based on Embodiment 1. The delivery system includes: a data management module. The operator inputs the material type and 7 types of material pallets through a PDA device, obtains the pallet code through the WMS system, and then binds the pallet code and material type through the data management module to form a one-to-one mapping relationship table 1, which is stored in the WMS system. Then, the corresponding storage location code and tank code are obtained through the PDA device and the WMS system, and the three codes are bound to form a one-to-one mapping relationship table 2. Finally, a unique material identifier is generated with the help of a barcode scanner.

[0054] The material requisition module, which is connected to the data management module via the network, allows operators to identify storage tanks 31 with insufficient stock during patrols. They can input the tank code of the storage tank 31 through a PDA device, and then obtain the corresponding pallet code, storage location code, and material type through the data management module. The material requisition module then packages the acquired information and creates a material requisition task, which is then sent to the MES system. The MES system then sends the material requisition task data package to the WMS system.

[0055] The error prevention and verification module, connected to the material requisition module via a network, performs four error prevention checks sequentially after a material requisition task is established. These checks include: determining if the target powdered compounding agent for tire manufacturing exists in storage 1 and if the inventory quantity meets the requisition requirements; determining if all target line-side storage areas 2 are empty (target line-side storage areas 2 are the storage areas corresponding to the unfilled storage devices 3); determining if there is an ongoing task in target line-side storage area 2; and determining if the material type requested by the material requisition task matches the material type pre-bound to target line-side storage area 21. If all four checks are true, the multi-level error prevention check is passed, and the material requisition task is executed. If any of the four checks is false, the WMS system generates a corresponding error reason through the error prevention and verification module and sends it to the operator for processing, but the material requisition task is not executed until the multi-level error prevention check is passed.

[0056] The AGV5 displacement module is connected to the WMS system network. After the WMS system determines the target full material storage location 13 and the target line-side storage location 21 for this material requisition task, it uses the AGV5 displacement module to determine which AGV5 will perform this material requisition task and to determine the starting point and ending point of that AGV5. Next, the AGV scheduling system uses the AGV5 displacement module to select the closest movement path from the preset set of movement tracks of the AGV5 and assigns it to the AGV5 that will perform this material requisition task.

[0057] An AGV5 scheduling module connected to or installed in the AGV scheduling system controls the movement and feedback signals of the AGV5 through the AGV5 scheduling module. For example, when the AGV5 completes material retrieval from the storage silo, it sends a material retrieval completion signal to the WMS system; when the AGV5 completes unloading at the target line-side storage location 21, it sends an unloading completion signal to both the WMS system and the AGV scheduling system; after unloading, the AGV5 is controlled to move to the nearest rest station 22.

[0058] The verification module, connected to the WMS system network, allows operators to read the RFID tag on the material pallet 7 at the target storage location 21 using the RFID reader. The verification module then checks if the tag matches correctly. If the match is correct, the material corresponds to the feeding port 34, and the operator can feed it. If the match is incorrect, the operator is alerted to check and resolve the issue before feeding the material correctly again.

[0059] The recycling module connected to the PDA device network includes an empty tooling recycling module. The operator pours all the tire manufacturing powdered compounding agent from the target line-side storage location 21 into the storage tank 31. There is no tire manufacturing powdered compounding agent on the material pallet 7, forming an empty tooling. The operator inputs the pallet code of the material pallet 7 through the PDA device and verifies the completed emptying of the tire manufacturing powdered compounding agent, determining the quantity of tire manufacturing powdered compounding agent added and the location of the line-side storage location 21 where the emptying was completed, thus establishing an empty tooling recycling task. Next, the empty tooling recycling module schedules AGV5 to move the empty tooling to the empty storage location 11 for stacking according to the empty tooling recycling task, and feeds back to the WMS system to update the inventory information of the storage warehouse 1, the material information of the target line-side storage location 21, and end the empty tooling recycling task.

[0060] In the surplus material tooling recycling module, the operator pours some of the tire manufacturing powdered compounding agent from the target line-side storage location 21 into the storage tank 31. Some tire manufacturing powdered compounding agent remains on the material pallet 7, forming a surplus material tooling. The operator inputs the pallet code of the material pallet 7 via a PDA device and verifies the completed unloading of the tire manufacturing powdered compounding agent, determining the quantity of tire manufacturing powdered compounding agent already added and the location of the line-side storage location 21 where unloading was completed, thus establishing a surplus material tooling recycling task. Next, the surplus material tooling recycling module schedules AGV5 to move the surplus material tooling to surplus material storage location 12 according to the surplus material tooling recycling task, and feeds back to the WMS system to update the inventory information of storage warehouse 1, the material information of the target line-side storage location 21, and end the surplus material tooling recycling task.

[0061] Secondly, such as Figure 4As shown, the storage device 3 includes a storage tank 31 containing a specific type of powdered compounding agent for tire manufacturing. A material outlet is formed at the bottom of the tank for discharging a fixed amount of the specific type of powdered compounding agent for tire manufacturing. The types and dosages of the powdered compounding agent for tire manufacturing poured out from the storage tank 31 at different locations are different, and then they are mixed to form tire manufacturing materials. The top of the storage tank 31 has a feeding port 34, which is covered by a cover plate 33 that rotates around a fixed fulcrum. An inclined connecting bracket is welded to one side of the cover plate 33. The connecting bracket is connected to the telescopic end of the cylinder 32 fixed to the cylinder body through a universal joint. When the operator reads the marking of the feeding port 34 through the PDA device, the cylinder 32 at this location retracts, which drives the connecting bracket and the cover plate 33 to rotate counterclockwise around the fixed fulcrum, thereby opening the feeding port 34. Then the operator pours the powdered compounding agent for tire manufacturing from the line-side storage position 21 bound to it into it. When the operator finishes pouring the material, he establishes a tooling recovery task through the PDA device. The WMS system drives the cylinder 32 at this location to extend through the industrial control computer, thereby driving the connecting bracket and the cover plate 33 to rotate clockwise to close the feeding port 34 at this location.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0063] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A method for dispensing a powdery compounding agent for a tire manufacturing compounding room, characterized by, Delivery methods include: Step 1: Bind the material type to the location of the line-side storage location (21) and the location of the storage device (3), and store the binding relationship in the database to obtain a unique material identifier, so that each type of powdered compounding agent for tire manufacturing corresponds to a unique line-side storage location (21) and storage device (3); Step 2: Based on the location of the unfilled storage device (3) and the material's unique identifier, generate a material requisition task for the corresponding type of powdered compounding agent for tire manufacturing; perform multi-level error prevention checks on the material requisition task, which includes at least: inventory determination, storage location availability determination, task conflict determination, and type matching determination; only when all determinations pass, confirm the execution of the material requisition task; otherwise, do not execute the material requisition task. Step 3: Based on the material requisition task to be executed and the inventory information of the storage warehouse (1), determine the material picking position, unloading position and movement path of the AGV (5), wherein the unloading position is the target line-side storage location (21); Step 4: Control the AGV (5) to perform material picking, handling, unloading and resetting, and send material picking signal and unloading signal to the database when material picking is completed and unloading is completed respectively. The database updates the inventory information of the storage (1) and marks the target line edge storage location (21) as occupied, and then ends the current material picking task. Step 5: Before pouring the target material from the tooling into the target storage device (3), verify whether the binding relationship between the target material and the target storage device (3) is consistent; after verification, allow the pouring operation to be performed, and put the target material into the target storage device (3); after the pouring is completed, perform the tooling recovery task: If all the target material has been dumped, it is determined to be an empty tooling. Then, the AGV (5) is dispatched to move the empty tooling to the empty storage location (11), and the database is fed back to mark the target line-side storage location (21) as idle, and the tooling recycling task ends. If the target material is not completely disposed of, it is determined to be a surplus material tooling. The dispatch AGV (5) moves the surplus material tooling together with the remaining powdered compounding agent for tire manufacturing to the surplus material storage location (12), and feeds back to the database to record the storage location of the surplus material tooling and the type and quantity of the remaining powdered compounding agent for tire manufacturing. The target line-side storage location (21) is marked as idle, and the tooling recycling task ends.

2. The dispensing method of claim 1, wherein: In step one, the storage device (3) includes a storage tank (31) in the tire compounding room for storing different types of powdered compounding agents for tire manufacturing and a feeding port (34) connected to the storage tank (31). The line-side storage location (21) is a material temporary storage area set up next to the feeding port (34). The binding specifically includes: assigning a unique tank code to each of the storage tanks (31) and the feeding port (34), assigning a unique storage location code to each of the line-side storage locations (21), and assigning a unique pallet code to each type of powdered compounding agent for tire manufacturing; establishing a one-to-one mapping relationship table 1 between the types of powdered compounding agents for tire manufacturing and the pallet codes; establishing a one-to-one mapping relationship table 2 between the tank codes, the storage location codes, and the pallet codes, and storing all the mapping relationship tables in the database; The material-specific identifier is a composite identifier generated based on the mapping table 2, which includes the tank code, the storage location code, and the pallet code.

3. The dispensing method of claim 1, wherein: Step two, specifically, involves generating a material request task for the corresponding type of powdered compounding agent used in tire manufacturing, which includes: The requested material type is obtained by reading the material-specific identifier corresponding to the incomplete material storage device (3) using a PDA device; The material request task is generated based on the requested material type, and the task number of the material request task, the requested material type and quantity, and the target line-side storage location (21) corresponding to the unfilled storage device (3) are packaged into a data packet and sent to the database. The database parses the data packet to obtain the requested material information.

4. The dispensing method of claim 1, wherein: Step two, specifically includes the multi-level error prevention verification: Inventory determination: Determine whether the target material exists in the storage warehouse (1) and whether the inventory quantity matches the quantity requested in the material requisition task; Storage location vacancy determination: Determine whether all target line-side storage areas (2) are vacant, wherein the target line-side storage area (2) is the storage area where the target line-side storage location (21) corresponding to the unfilled storage device (3) is located; Task conflict determination: Determine whether there is a material calling task or tooling recycling task being executed within the target line edge storage area (2); Type matching determination: Determine whether the type of material requested by the material requisition task is consistent with the type of material pre-bound to the target line-side storage location (21); The material calling task is executed only if the results of all four determination steps are yes; If any of the four determination steps results in a negative result, the database generates a corresponding error reason and sends it to the operator for processing, and the material calling task is not executed until the multi-level error prevention check is passed.

5. The dispensing method of claim 1, wherein: In step three, determining the picking and unloading positions of the AGV (5) based on the determined material calling task and the inventory information of the storage warehouse (1) specifically includes: the database receiving the requested material information of the material calling task, querying the storage warehouse (1) for material storage locations that match the requested material information and whose inventory status is available, based on the principle of first entering the warehouse and then using, and determining the material storage location with the earliest entry time as the picking position, and determining the target line-side storage location (21) specified by the material calling task as the unloading position.

6. The dispensing method of claim 1, wherein: In step three, determining the movement path of the AGV (5) includes: the AGV scheduling system selects the AGV (5) closest to the material picking position from the idle AGVs (5) according to the material picking position as the executing AGV (5), and switches the state of the executing AGV (5) to the working state; the AGV scheduling system selects the running track from the material picking position to the unloading position as the movement path from the preset AGV (5) running track set.

7. The dispensing method of claim 1, wherein: In step four, controlling the AGV (5) to perform material picking, handling, unloading, and resetting specifically includes: After the AGV scheduling system drives the AGV (5) to pick up materials from the picking position, the AGV (5) sends a picking completion signal to the database to update the inventory information of the storage warehouse (1); After receiving the material picking completion signal, the AGV scheduling system drives the AGV (5) to move along the moving path to the unloading position. After the AGV (5) completes unloading, it sends the unloading completion signal to the database to mark the target line-side storage location (21) as occupied. After receiving the unloading completion signal, the AGV scheduling system switches the working status of the AGV (5) from working to idle and controls the AGV (5) to move to the nearest rest station (22).

8. The dispensing method of claim 1, wherein: In step five, when all the target material has arrived and the tooling is determined to be empty, the tooling retrieval task is executed: The empty material tooling recycling task of the target line-side storage location (21) is established by the PDA device, so as to notify the AGV scheduling system to schedule the AGV (5) to move the empty material tooling from the target line-side storage location (21) to the empty material storage location (11). After the AGV (5) takes away the empty material tooling, it sends a picking completion signal to the database to mark the target lineside storage location (21) as idle. After the AGV (5) unloads the empty material tooling, it sends an unloading completion signal to the AGV scheduling system and the database, so that the AGV scheduling system switches the AGV (5) status to idle, and the database updates the inventory information of the empty material storage location (11) and ends the empty material tooling recycling task.

9. The delivery method according to claim 1, characterized in that: In step five, if the target material is not completely poured out and is determined to be residual material in the tooling, the tooling recycling task is executed: The PDA device establishes a task for recycling the remaining material tooling at the target line-side storage location (21), and notifies the database to send the task number of the remaining material tooling recycling task, the type and quantity of the remaining powdered compounding agent for tire manufacturing, and the location of the target line-side storage location (21) as the starting point to the database. The database determines the endpoint based on the type and quantity of the remaining powdered compounding agent for tire manufacturing and the nearest remaining material storage location (12) to the starting point, and sends the starting point and the endpoint to the AGV scheduling system to schedule the AGV (5) to move the remaining material tooling from the target line-side storage location (21) to the remaining material storage location (12); After the AGV (5) takes away the remaining material tooling, it sends a picking completion signal to the database to mark the target lineside storage location (21) as idle. After the AGV (5) unloads the waste material tooling, it sends an unloading completion signal so that the AGV scheduling system switches the AGV (5) status to idle, the database updates the inventory information of the waste material storage location (12), and the waste material tooling recycling task ends.

10. A delivery system according to any one of claims 1 to 9, characterized in that, The delivery system includes: The data management module is used to bind the material type with the location of the line-side storage location (21) and the location of the storage device (3), and store the binding relationship in the database to obtain the material-specific identifier, so that each type of powdered compounding agent for tire manufacturing corresponds to a unique line-side storage location (21) and the storage device (3); The material calling module is used to generate material calling tasks for the corresponding type of powdered compounding agent for tire manufacturing based on the location of the unfilled material storage device (3) and the material's unique identifier. The error prevention verification module is used to perform multi-level error prevention verification on the material requisition task. The multi-level error prevention verification includes at least: inventory determination, storage location availability determination, task conflict determination, and type matching determination. The material requisition task is confirmed to be executed only when all determinations pass; otherwise, the material requisition task is not executed. The AGV(5) displacement module is used to determine the material picking position, unloading position and movement path of the AGV(5) based on the material picking task to be executed and the inventory information of the storage warehouse (1); The AGV(5) scheduling module is used to control the AGV(5) to perform material picking, handling, unloading and resetting, and to send material picking signal and unloading signal to the database when material picking is completed and unloading is completed, respectively. The database updates the inventory information of the storage (1) and marks the target line-side storage location (21) as occupied, and then ends the current material picking task. The verification module is used to verify whether the binding relationship between the target material and the target storage device (3) is consistent before the target material is poured from the tooling into the target storage device (3); after the verification is passed, the pouring operation is allowed to be performed to put the target material into the target storage device (3); The recycling module is used to perform tooling recycling tasks after the material unloading is completed.

11. The delivery system according to claim 10, characterized in that, The recycling module includes: The empty material tooling recycling module is used to dispatch AGV (5) to move the empty material tooling to the stacking position after all the target material has been dumped, and to update the inventory information of the storage warehouse (1), the material information of the target line edge storage position (21), and end the recycling task of the empty material tooling in the database. The waste material tooling recycling module is used to dispatch AGV (5) to move the waste material tooling to the waste material storage location (12) when the target material is not completely dumped, and to update the inventory information of the storage warehouse (1), the material information of the target line-side storage location (21) and end the recycling task of the waste material tooling in the database.

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