A coil storage site intelligent allocation method

Abstract

The present application relates to steel warehouse management, control and scheduling technical field, specifically to a kind of steel coil warehouse intelligent allocation method when entering, comprising the following steps:1, the day to be discharged steel coil upper two-layer warehouse is locked, prohibition is involved distribution;2, according to steel coil data and the data of warehouse entry, each column is carried out column matching degree calculation;3, according to column matching degree size, warehouse position is matched, such as current warehouse position meets the requirement, i.e. allocation success, otherwise continue to match other warehouse position;4, if the matched warehouse position is two layers, then according to the information of one layer two steel coils, two-layer warehouse coordinates are obtained.The present application solves the problem of traversing search entire warehouse position when searching warehouse position, improves the efficiency of warehouse position search, reduces the empty running path of crown block;Solve the problem of warehouse waste caused by the mismatch of steel coil type specification and saddle specification, through the locking operation of the two-layer warehouse above the day to be discharged steel coil, prevent the to-be-discharged steel coil from being pressed below, reduce the work of reverse cutting.

Description

Technical Field

[0001] This invention relates to the field of steel warehouse management, control and scheduling technology, specifically to a method for intelligent allocation of warehouse locations when steel coils are put into storage. Background Technology

[0002] Warehouse location allocation refers to assigning a suitable storage location to each steel coil when it needs to be stored in a steel warehouse. Therefore, allocating optimal storage locations for different types of steel coils not only reduces the empty travel path of overhead cranes and improves operational efficiency, but also facilitates the coil retrieval process during outbound operations, making warehouse management more efficient. Steel coil storage location allocation in steel plants is a crucial link in steel logistics and warehouse management, playing an extremely important role in the entire logistics and storage process. However, most existing warehouses rely on manual hoisting and stacking of steel coils. Even the few warehouses managed by computer systems face various problems, mainly manifested in: 1. High degree of randomness and low transparency due to manual involvement, leading to chaotic storage areas and difficulty in locating coils; 2. Newly arrived steel coils are piled on top of coils that need to be retrieved that day, causing difficulties in unloading and wasting time; 3. Due to the fixed position of the cab and the driver's limited field of vision, steel coils may fall onto those below due to angular deviations, causing safety accidents.

[0003] Efficiently and rationally allocating suitable storage locations for different types of steel coils is the core of steel coil warehousing operations. Currently, research on storage location allocation planning in China is still in its early stages; therefore, providing a sound method for allocating storage locations when steel coils are received is particularly important. Summary of the Invention

[0004] To overcome the shortcomings and deficiencies of the prior art, the present invention aims to provide a method for intelligent allocation of warehouse locations when steel coils are put into storage, which can make reasonable use of warehouse locations, improve warehouse location search efficiency and utilization rate, reduce the empty running path of overhead cranes, reduce warehouse location waste, and reduce the need for backhoeing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for intelligent allocation of warehouse locations when steel coils are put into storage, specifically including the following steps:

[0006] First, locate the steel coils to be shipped out that day according to the pending outbound plans in the system. Then, lock the second-level storage location above the steel coils to be shipped out, preventing them from participating in the allocation. Update the warehouse and system storage location map in real time based on warehouse inbound / outbound records, inventory records, and inventory transfer records.

[0007] (1) Operators collect the steel coil attribute information in the plan and submit it to the management system backend;

[0008] (2) The system determines the steel coil specifications based on the collected data. If the steel coil is a large steel coil, it is assigned to a large saddle, and if the steel coil is a small steel coil, it is assigned to a small saddle. The allocation process starts from step 3.

[0009] (3) First, treat each column as a whole and calculate the column matching degree for each column. The matching degree is determined by the number of factors that meet different priorities.

[0010] (4) Obtain the matching degree value D according to the defined priority order of the matching degree factors;

[0011]

[0012] Where X represents the number of matching factors that the current column of steel coils satisfies; Y represents the total number of matching factors.

[0013] (5) If the matching degree D is greater than 20% and less than or equal to 100%, then the empty storage location in each row of the current column will be searched and matched according to the column matching degree. The storage location matching must meet the pre-specified requirements for saddle and steel coil size and safety factors.

[0014] (6) The empty storage location search and matching process has the following requirements:

[0015] a. If the outer diameter of the two adjacent rows of steel coils in the same column meets the requirements after the current steel coil is placed in the current storage location; the width of the current steel coil itself meets the requirements; the weight of the current steel coil meets the requirements; and the type of steel coil meets the requirements, then the current storage location can be assigned.

[0016] b. If the current empty storage location does not meet the storage requirements, continue searching for empty storage locations in other rows of this column;

[0017] c. If no available storage location is found after searching the current column, continue searching for empty storage locations in the next column from the center outwards until a storage location that meets the storage requirements is found.

[0018] (7) If the matching degree is 20%, that is, the current steel coil only meets and must meet the requirement that the steel coil type is hot coil or cold coil, then the matching only stores the column of hot coil or cold coil, and continue to execute step 6;

[0019] (8) Under the premise of meeting the above requirements, execute the second priority task: search for parking spaces in accordance with the principle of searching from the center of the parking space to both sides;

[0020] (9) Storage location allocation successful, start automatic storage operation.

[0021] (10) If the steel coil is a non-standard coil, it should be stored in a second-level warehouse according to the above process, provided that the first-level steel coil can support the second-level steel coil, that is, the safety conditions must be met.

[0022] If the assigned storage location is on the second floor, the coordinates of the second-floor storage location are calculated based on the outer diameter and core coordinates of the two steel coils on the first floor.

[0023] A further improvement is that locking the second-level storage location involves finding the corresponding row and column position of the second-level storage location in the system and locking it through the system's storage location locking operation. The system cannot participate in the allocation of the locked storage location; it can only be used for allocation after it is unlocked.

[0024] A further improvement is that the collection of steel coil attribute information and its submission to the system involves establishing a link between the collected steel coil number and the corresponding specifications on the planning order, which facilitates warehouse location allocation.

[0025] A further improvement is that the column matching degree is determined by the number of factors with different priorities that the steel coils in the current column satisfy.

[0026] A further improvement is the task priority: when executing a task, it refers to which condition is prioritized for searching. In this invention, there are two conditions: column matching degree is the first priority, and searching from the parking space as the center to both sides is the second priority.

[0027] Further improvements include the following non-standard coils: steel coil types that cannot be compressed, such as ultra-thin coils, red and green ribbon coils, and simple packaging coils, as well as coils with a net weight less than the specified value.

[0028] Further improvements include the following influencing factors for calculating the matching degree: whether the steel coil placed in the current column is a hot-rolled or cold-rolled coil; the average mass of the steel coil in the current column; the average width of the steel coil in the current column; and the flow direction of the steel coil in the current column.

[0029] A further improvement is that the single layer of steel coil can support two layers of steel coil: the outer diameters of two adjacent rows of steel coils in the same column are relatively close, and the weight and width of the two layers of coil and the single layer of coil are similar, which meets the safety requirements.

[0030] Compared with the prior art, the technical solution adopted in this invention has the following beneficial effects:

[0031] 1. This technical solution improves the warehouse location search strategy. A second priority is added to search for available warehouse locations from parking spaces outwards to both sides of the warehouse area. This solves the problem of simultaneously traversing and searching the entire warehouse during the location search, improving search efficiency, reducing the empty travel path of the overhead crane, and increasing operational efficiency.

[0032] 2. This technical solution improves the steel coil type identification process. First, it determines whether the steel coil is a standard coil, then whether it is a large coil, and allocates it to the second-level storage location and either a large or small saddle according to its type. This solves the problem of wasted storage space caused by mismatches between steel coil type and specifications and saddle specifications, improving storage space utilization and warehouse capacity.

[0033] 3. This technical solution improves the storage of similar steel coils by searching for storage locations based on matching degree, thereby improving outbound efficiency and reducing coil retrieval time.

[0034] 4. This technical solution improves the allocation of storage locations by locking the second-level storage locations above steel coils that need to be shipped out on the same day, preventing them from participating in the allocation. This prevents steel coils waiting to be shipped from being pressed down underneath, reducing the workload of backhoeing. The warehouse and system storage location map are updated in real time based on warehouse inbound and outbound records and inventory counts. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the process of the present invention;

[0036] Figure 2 This is a diagram showing the locations of warehouse storage areas and parking spaces.

[0037] Figure 3 A schematic diagram showing the arrangement of two layers of steel coils to meet the requirements;

[0038] Figure 4 This is a schematic diagram of the placement of two layers of steel coils that do not meet the requirements. Detailed Implementation

[0039] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0040] Example 1

[0041] Step 1: As Figure 1 As shown, the system first locates the steel coils to be shipped out that day according to the existing outbound order list. Then, it locks the second-level storage location above the steel coils to be shipped out, preventing them from participating in the allocation. The warehouse and system storage location map are updated in real time based on warehouse inbound and outbound records, inventory records, and inventory transfer records.

[0042] Step 2: Operators collect the steel coil attribute information from the plan and submit it to the management system backend;

[0043] Step 3: Based on the collected data, the system classifies steel coils into large and small coils according to their weight. Coils weighing less than 7 tons are classified as small coils, while those weighing more than 7 tons but less than 21 tons are classified as large coils. If a steel coil is a large coil, it is assigned to a large saddle, and a small coil is assigned to a small saddle.

[0044] Then, each column is treated as a whole, and the column matching degree is calculated. The matching degree is determined by the number of factors that meet different priorities. The influencing factors in order of priority from high to low are: whether the steel coil type is hot-rolled or cold-rolled, the average weight of the steel coil in the current column is within a fixed range, the average width of the steel coil in the current column is within a fixed range, the number of contract number sets of the steel coil in the current column is as small as possible, and the number of flow direction sets of the steel coil in the current column is as small as possible.

[0045] Step 4: Obtain the matching degree value D according to the defined priority order of the matching degree factors;

[0046]

[0047] Where X represents the number of matching factors that the current column of steel coils satisfies; Y represents the total number of matching factors.

[0048] Step 5: If the matching degree D is greater than 20% and less than or equal to 100%, then start searching for empty storage locations in each row of the current column according to the column matching degree. The storage location matching must meet the pre-defined requirements for saddle and steel coil dimensions and safety factors.

[0049] Step Six: The empty storage location search and matching process has the following requirements:

[0050] a. If the outer diameter of the two adjacent rows of steel coils in the same column meets the requirements after the current steel coil is placed in the current storage location; the width of the current steel coil itself meets the requirements; the weight of the current steel coil meets the requirements; and the type of steel coil meets the requirements, then the current storage location can be assigned.

[0051] b. If the current empty storage location does not meet the storage requirements, continue searching for empty storage locations in other rows of this column;

[0052] c. If no available storage location is found after searching the current column, continue searching for empty storage locations in the next column from the center outwards until a storage location that meets the storage requirements is found.

[0053] Step 7: If the matching degree is 20%, that is, the current steel coil only meets and must meet the requirement that the steel coil type is hot-rolled or cold-rolled, then the matching only stores the column of hot-rolled or cold-rolled coil, and continue to execute Step 6;

[0054] Step 8: Provided the above requirements are met, execute the second priority task: search for parking spaces according to the principle of searching outwards from the parking space as the center. For example... Figure 2As shown, after the truck parks in the parking space and completes the previous operations, the system searches for suitable storage spaces on both sides from the parking space, and starts the overhead crane to perform the hoisting task after the storage space is allocated; there are two types of saddles in the storage area, large saddles and small saddles, and the two types of saddles are designed separately. All large saddles are in one storage area and all small saddles are in another storage area, which facilitates allocation and management.

[0055] like Figure 3 and Figure 4 As shown, Figure 3 To meet the requirements for the two-layer steel coil placement diagram, the following conditions must be met when allocating the two-layer storage locations: the difference in outer diameter between two adjacent rows of steel coils in the current column must be less than the specified value; the weight of the steel coils placed in the second layer cannot exceed the specified percentage of the weight of the steel coils in the first layer; and the width of the steel coils placed in the second layer cannot exceed the specified percentage of the width of the steel coils in the first layer. If these conditions are met, the coordinates of the second-layer steel coil storage locations can be calculated based on the data from the first-layer steel coils, and then the overhead crane operation instruction can be executed. Figure 4 If the above conditions are not met, storage in the second-level storage area is not feasible; forced storage poses a security risk, and the coordinates of the second-level storage location cannot be calculated. Additionally, if the security conditions are met, smaller volumes can be preferentially allocated to second-level storage locations.

[0056] Step 9: Storage location allocation successful, automatic inbound operation begins.

[0057] Step 10: If the steel coil type is non-standard, prioritize storage in the second-level warehouse according to the above process, provided that one layer of steel coils can support two layers of steel coils, i.e., safety conditions must be met. Non-standard coils are steel coils that cannot be compressed, such as ultra-thin coils, red and green ribbon coils, and simple packaging coils, as well as coils with a net weight less than the specified value;

[0058] If the assigned storage location is on the second floor, the coordinates of the second-floor storage location are calculated based on the outer diameter and core coordinates of the two steel coils on the first floor.

[0059] This invention proposes a method for intelligent warehouse location allocation when steel coils are received. This method locks the second-level warehouse locations above the steel coils to be shipped that day, preventing them from participating in the allocation. This prevents the steel coils to be shipped from being pressed down, thus increasing the need for repositioning. The system updates the warehouse and system location map in real time based on warehouse inbound and outbound data and overall inventory records. Furthermore, this invention improves the storage of similar types of steel coils by searching for warehouse locations according to matching degree from high to low. This method allows steel coils of the same or similar specifications to be stored in close proximity, improving shipping efficiency and reducing the time spent searching for coils during shipping. During warehouse location search, available locations are searched from the parking space outwards, solving the problem of simultaneously traversing and searching the entire warehouse during location matching, thus improving search efficiency. This method ensures that the warehouse location closest to the parking space has the highest utilization rate, and most steel coils will be concentrated in the warehouse closest to the parking space during shipping, reducing the overhead crane's empty travel path and improving operational efficiency. In addition, after receiving the collected information, the system will first determine whether it is a large or small steel coil, and then allocate it to the corresponding large or small saddle. This prevents the waste of storage space caused by the mismatch between the specifications of the steel coil and the saddle, improves the utilization rate of storage space, and also prioritizes the allocation of non-standard coils to secondary storage space, reducing storage space waste and improving the warehouse capacity.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. For those skilled in the art, after learning the contents described in the present invention, several equivalent changes and substitutions can be made without departing from the principle of the present invention. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A method for intelligent allocation of storage locations when steel coils are put into storage, characterized in that: Includes the following steps: S1: The system retrieves the outbound plan for the day and locks the two-layer storage location above the steel coils to be shipped out that day, prohibiting them from participating in the allocation; S2: Operators collect the steel coil attribute information in the plan and submit it to the management system backend; S3: Assign corresponding saddles according to the size of the steel coils, calculate the column matching degree for each column as a whole, calculate the matching degree based on the number of matching degree factors that meet different priorities, and obtain the matching degree value D according to the predefined priority order of the matching degree factors: ； Where X represents the number of matching factors that the current column of steel coils satisfies; Y represents the total number of matching factors. S4: If the matching degree D is greater than 20% and less than or equal to 100%, then search for empty parking spaces in each row of the current column according to the column matching degree from large to small, or search for parking spaces in both directions from the center. If the matching degree is 20%, meaning that the current steel coil only meets and must meet the requirement that the steel coil type is hot-rolled or cold-rolled, then the matching will only store the column of hot-rolled or cold-rolled, and the search matching will continue. If the steel coil type is non-standard coil, the non-standard coil is a coil that cannot be compressed and a coil with a net weight less than the specified value. The coil that cannot be compressed is an ultra-thin coil, a red and green ribbon coil, and a simple packaging coil. It should be preferentially allocated to the second-level warehouse for storage. S5: Storage location allocation successful. Start automatic storage operation. If the matched storage location is on the second floor, calculate the coordinates of the second floor storage location based on the information of the two steel coils on the first floor. Among them, the matching factors mentioned in S3 are arranged from high to low priority as follows: whether the steel coil type is hot-rolled or cold-rolled, the average weight of the current column of steel coils is within a fixed range, the average width of the current column of steel coils is within a fixed range, the type of contract number set of the current column of steel coils, and the type of flow direction set of the current column of steel coils. Among them, the empty storage location search matching conditions mentioned in S4 include: a. If the outer diameter of the two adjacent rows of steel coils in the same column meets the requirements after the current steel coil is placed in the current storage location and / or the width of the current steel coil itself meets the requirements and / or the weight of the current steel coil meets the requirements and / or the type of steel coil meets the requirements, then the current storage location will be assigned. b. If the current empty storage location does not meet the storage requirements, continue searching for empty storage locations in other rows of this column; c. If no available storage location is found after searching the current column, continue searching for empty storage locations in the next column from the center outwards until a storage location that meets the storage requirements is found.

2. The intelligent warehouse location allocation method for steel coils upon entry into the warehouse according to claim 1, characterized in that: Step S2 establishes a link between the collected steel coil number and the corresponding specifications on the planning order, which facilitates warehouse location allocation.

3. The intelligent warehouse location allocation method for steel coils upon entry into the warehouse according to claim 1, characterized in that: In the matching process, task priorities are set. The task priority is the condition for priority search when executing a task. Column matching degree is the first priority task, and searching from the parking space to both sides is the second priority task.

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