CN103942670B - Steel strand finished product storage and distribution method - Google Patents

Abstract

A storage and distribution system and method for steel strand finished products, the system includes a storage area configuration module, a product storage registration module, a storage location allocation module, a product distribution and delivery module, a product storage management module, and storage scene visualization module; the method includes: setting the functional division of the storage area, designing the shape and size of different storage stack types; dividing and numbering the cargo space; performing real-time or batch registration of the storage information of the steel strand finished products; Allocation of finished product location of steel strand and generate and carry out the transportation plan of finished product of steel strand; when it is necessary to transport finished product of steel strand, carry out distribution calculation of finished product of steel strand according to different means of transportation and generate steel strand Finished product distribution plan; deliver the finished steel strand products out of the warehouse, load them into transportation tools, and complete the distribution. The invention considers the constraints of package transportation to carry out storage stack type design and storage area configuration; realizes integrated online optimization of storage and distribution and multi-dimensional visualization of storage and logistics.

Description

A storage and distribution method for steel strand finished products

technical field

The invention belongs to the technical field of logistics, and in particular relates to a storage and distribution system and method for steel strand finished products.

Background technique

As an important metal product, steel strands are widely used in basic construction projects such as railways, highways, airports, power stations, and dams, as well as residential construction projects. With the continuous expansion of the demand for steel strands, the output of enterprises continues to increase, and the storage and shipment of finished steel strands are also increasing, which makes the logistics management problems at the end of the steel strand production line of enterprises increasingly prominent.

There are more than 20 varieties and specifications of steel strand products. Considering the market orientation and giving full play to the capacity of production equipment in the actual production, a mixed production mode of order-oriented and stock-oriented is adopted for products of different varieties and specifications. The production and logistics process of steel strand products is shown in Figure 1: After surface treatment such as derusting, pickling, rinsing, and drying, the wire rods are drawn and twisted into large coils of steel strands, and then cut and divided into coils. Steel strands are formed into small rolls, and then packaged to produce finished steel strand coils, which enter the storage process after warehousing, and are transported and loaded according to user orders or delivery requirements, and then loaded and shipped to users.

In order to ensure the continuity of production, the surface-treated multi-coil wire rod raw materials are usually welded first, and then drawn and twisted. Affected by the dispersion of the raw material wire rod material and the uncertain factors in the production process, the steel strand There are multiple welding points in the large wire coil. In order to ensure the strength of the finished product, the weights of the small steel strand coils formed after the coils are cut are different, and the finished steel strand coils after packaging are different in size and weight. In order to give full play to the production capacity of the equipment, steel strand products of various specifications are produced in parallel, and the finished products are continuously delivered to the warehouse, which brings about the orderly storage and optimized distribution management of the finished steel strand products. Due to the randomness of user orders and the unpredictability of the type of transport vehicle and the arrival time, often the transport vehicle can only be loaded according to the specific requirements of the vehicle after the transport vehicle is confirmed to arrive or is about to arrive, which makes the transportation and loading operation time tight. lead to the following problems:

(1) Steel strand finished products of different production times, weights and types are mixed and stacked in the warehouse, making it difficult to realize the orderly storage of steel strand finished products;

(2) In order to ensure the loading tolerance (quantity and weight) constraints of the means of transportation, the finished products in storage need to be stacked multiple times during transportation and stowage, and suitable products are selected, which increases the possibility of damage to the finished products;

(3) Manual allocation of vehicles, resulting in "weight loss" (dissatisfaction with allocation of vehicles) and delays in delivery, resulting in loss of capacity and freight;

(4) The logistics operation cycle is long, the labor load is heavy, and it is difficult to meet the needs of product delivery during the peak period;

(5) It is difficult to fully grasp the inventory and shipping information, and it is difficult to realize the first-in-first-out requirement of products;

Aiming at the main problems existing in the logistics process at the end of the steel strand production line, comprehensively considering the production constraints, transportation constraints, and storage and distribution optimization management objectives, in order to reduce resource waste, improve operation efficiency, and improve management levels, it is necessary to comprehensively adopt computer technology and optimization The technology can visualize and intelligently manage the logistics of steel strand finished products.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a storage and distribution system and method for steel strand finished products.

Technical scheme of the present invention is as follows:

A storage and distribution system for steel strand finished products, which is used to allocate storage locations for steel strand finished products in the storage area for positioning and storage, and to distribute and transport the steel strand finished products in the storage area, including: storage Regional configuration module, product storage registration module, storage location allocation module, product distribution and delivery module, product storage management module and storage scene visualization module;

The storage area configuration module is used to configure the storage area according to the type and quantity of the steel strand finished products to be stored. The storage area configuration includes: setting the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area ;Change the number of steel strand finished products in the buffer zone and stacking area; set the storage stack type of the buffer zone, that is, the type and storage quantity of the steel strand finished products of the storage product; set the storage stack type of the stacking area , that is, the product type, storage quantity, upper limit of the total storage weight and lower limit of the total storage weight of the finished steel strand products stored in the stacking area;

The product warehousing registration module is used to register the warehousing information of the steel strand finished products when each steel strand finished product is put into storage, and share data with the storage location allocation module through the database. The warehousing information of the finished product includes: the product code of the finished steel strand, the weight of the finished steel strand, the specification and model of the finished steel strand, and the production time;

The storage location allocation module is used to allocate the location of the finished steel strand products according to the warehousing information of the finished steel strand products and generate a transportation plan for the location of the finished steel strand products;

The product distribution and delivery module is used to calculate the distribution of finished steel strand products according to different means of transportation and generate a distribution plan for finished steel strand products;

The product warehousing management module is used to inquire about product data in stock and to obtain data display and data reports according to statistical analysis of these information, and to carry out movement, inventory, withdrawal, and scrapping of designated products to form corresponding movement, inventory, withdrawal, Scrapping operation documents; the inventory product data includes product code, product type, product weight, production time, storage time, storage location and loading list information;

The storage scene visualization module is used to display the two-dimensional plan and three-dimensional diagram of the storage area, and the storage area configuration module, the product storage registration module, the storage space allocation module, the storage space allocation module, and the product distribution and delivery module The results of the changes in the storage area caused by the operations are displayed.

The storage area is used to place finished steel strand products that have been registered for storage and have not yet been assigned a storage space;

The buffer zone is used to store the finished steel strand products that have been allocated but have not yet entered the stacking area;

The stacking area is used for storing the steel strand finished products that have been allocated a cargo space and are located in the stacking area.

The steel strand finished product in the storage area is used as a steel strand finished product for less-than-truckload transportation when the vehicle is an automobile;

The steel strand finished products in the buffer zone continue to participate in the location allocation of the subsequent steel strand finished product batches or as the steel strand finished products shipped by LTL transportation when the means of transport is a car;

The finished steel strands in the stacking area are used as finished steel strands for bulk transportation and shipment.

The buffer zone and the stacking area perform functional partition conversion or storage capacity adjustment according to the actual needs of production, that is, the quantity of stored finished products, the upper limit of the total weight of the stack and the lower limit of the total weight of the stack.

The method for storing and distributing steel strand finished products by using the steel strand finished product storage and distribution system includes the following steps:

Step 1: According to the actual shape and size of the industrial site where the storage area is located, the product type of the finished steel strand, the weight of the finished steel strand, the external dimensions of the finished steel strand, the type of transportation means and the load of the transportation means , set the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area, and aim at the buffer area and the stacking area, in order to maximize the utilization rate of the storage area, design the shape and size of different storage stacking types , the storage stack type is the stacking form of the finished steel strand, and each stack type contains at least one stack position;

Step 2: Number each stack, and divide and number the storage area, buffer zone and stacking area respectively; the storage area is arranged in a tiled manner and divided into multiple different storage areas , sequentially numbered according to the position of the cargo space, the buffer zone and the stacking area are divided into stacks, and the number is uniformly numbered according to the stack, and the number of the cargo space is combined with the number of layers and the position number of each stack, that is, the cargo space of the buffer zone Both the number and the location number of the stacking area include the stack number, layer number and position number;

Step 3: When each steel strand finished product enters the warehouse, the storage information of the steel strand finished product is registered in real time or in batches;

The warehousing information of the finished steel strand product includes: the product code of the finished steel strand product, the weight of the finished steel strand product, the specification model and production time of the finished steel strand product;

Step 4: According to the warehousing information of each batch of finished steel strand products, allocate the location of the finished steel strand products and generate a transportation plan for the location of the finished steel strand products;

Step 4.1: Store the steel strand finished products that have been registered in the warehouse and have not yet been allocated to the warehouse in the storage area;

Step 4.2: According to the specifications of the steel strand finished products to be allocated in the storage area, search the buffer zone for the corresponding specifications of the finished products temporarily stored in the buffer zone, and together with the finished products in the storage area, constitute the steel strands to be allocated in the storage area. Strand finished product set, in the steel strand finished product set to be allocated, sort each steel strand finished product of each specification in increasing weight;

Step 4.3: Search or designate the stacks to be loaded with the same finished product specifications in the stacking area according to the specifications of the steel strand finished products to be allocated to form a set of stacks to be loaded, and determine the remaining capacity of the stacks to be loaded, The quantity of finished products ready to be loaded with steel strands and the total weight of finished products ready to be loaded with steel strands;

Step 4.4: Distribute the steel strand finished products in the storage space to be allocated to each stacking position in the stacking area;

Step 4.5: Determine whether there are steel strand finished products that have not been allocated to the stacking area in the collection of steel strand finished products that are to be allocated. Stored in the free space in the buffer zone, if not, go to step 4.6;

Step 4.6: Arrange the weights of the finished steel strands in each assigned stacking area in descending order, and arrange the steel strands in descending order according to the stacking type of each stacking position, with the principle of first the lower layer and then the upper layer, and the weight is from heavy to light. The finished strands are loaded into each location of the assigned stack;

Step 4.7: According to the location number assigned to each steel strand finished product, generate a steel strand finished product location handling plan;

The storage location handling plan for the steel strand finished product includes: the code of the steel strand finished product, the initial position of the steel strand finished product, and the target position of the steel strand finished product;

Step 5: According to the steel strand finished product location handling plan, move the steel strand finished products in the storage area: store the steel strand finished products that have been allocated storage space and have not yet entered the stacking area in the corresponding buffer zone Storage space, store the steel strand finished products that have been assigned storage space and enter the stacking area to the corresponding storage space in the stacking area;

Step 6: When it is necessary to transport the finished steel strand, calculate the distribution of the finished steel strand according to different means of transportation and generate a distribution plan for the finished steel strand. The complete shipment and distribution calculation of the finished product generates the complete shipment and distribution plan of the steel strand finished product, as follows:

If it is found in the stacking area or can be manually specified that the product specifications of the finished steel strand products that meet the product delivery requirements and the stacking positions of the finished steel strand products that meet the requirements for the number and weight of the train carriages loaded in the package are found, the stacker will be The number of the position is bound to the number of the corresponding train car, and then the goods position number of the steel strand finished product in the stack is matched with the number of the corresponding train car to generate the packaged transportation and distribution of the steel strand finished product Otherwise, adjust the delivery plan of the steel strand finished product or use the whole package transportation as the less-than-truckload transportation task, that is, calculate the less-than-truckload transportation and distribution of the steel strand finished product based on the number and weight of the package transportation requirements, and pass The method of less-than-truckload transportation and distribution generates a complete transportation and distribution plan for steel strand finished products;

The packaged transportation and distribution plan for the steel strand finished products includes the product code of each steel strand finished product and its stack code and location code, information on the means of transportation and customer information;

When the means of transportation is a car, calculate the less-than-truckload transportation and distribution of steel strand finished products, and generate a less-than-truckload transportation and distribution plan for steel strand finished products. The specific steps are as follows:

Step 1: Determine the set of finished products to be shipped in the steel strand finished products in the buffer zone and/or storage area according to the specifications of the finished steel strand products required by the transportation task;

Step 2: According to the weight of the finished products in the steel strand finished product collection to be shipped, they are sorted from light to heavy and preloaded into the transportation vehicle in order until the specified number of products loaded by the transportation vehicle is reached;

Step 3: Judging whether the total weight of the finished steel strand products pre-loaded into the vehicle meets the weight of the finished steel strand products to be shipped, that is, the total weight of the finished steel strand products pre-loaded into the vehicle is within the weight of the vehicle If it is between the upper and lower limits of the load, if yes, complete the calculation of the less-than-truckload transportation and distribution of steel strand finished products, and generate a less-than-truckload transportation and distribution plan for steel strand finished products; if not, go to step 4;

Step 4: Determine whether the total weight of the pre-loaded steel strand finished product is greater than the upper limit of the vehicle’s load, if yes, adjust the delivery plan for the steel strand finished product, if not, go to step five step;

Step 5: Calculate the difference between the total weight of the finished product of the steel strand preloaded into the means of transport and the lower limit of the load of the means of transport;

Step 6: Compare the finished product of steel strand to be shipped with the finished product of steel strand pre-loaded into the vehicle one by one, if there is a difference in weight between the finished product of steel strand pre-loaded into the vehicle and closer to the weight of the finished product of steel strand pre-loaded If the difference between the total weight of the steel strand finished product pre-loaded into the vehicle and the lower limit of the load of the vehicle is the difference between the finished steel strand product pre-loaded into the vehicle, the finished steel strand product to be shipped will replace the finished product Finished strands pre-loaded into means of transport;

Step 7: Generate less-than-truckload transportation and distribution of finished steel strand products based on the location number of the finished steel strand products that have been shipped, the product code of the finished steel strand products that have been shipped, information on the means of transport, driver information, and customer unit information Program;

Step 7: According to the steel strand finished product distribution plan, the steel strand finished product is delivered out of the warehouse, loaded into the transportation tool, and the distribution is completed.

Beneficial effect:

The invention applies the technology and method of system engineering, combines information technology and virtual reality technology, realizes the visual monitoring and intelligent management of the logistics process at the end of the iron and steel product production line, and forms a systematic and effective technical scheme and system. Has the following advantages:

(1) Storage stack type design and storage area configuration management considering the constraints of bulk transportation;

Steel strand finished products have many types of specifications, different weights and sizes, large production volume, limited storage area, and large inventory flow. According to the dynamics of actual production and considering the needs of future assembly and transportation, the storage stacking type is designed for effective use The storage area lays the foundation for the integrated optimization of warehousing and FBA; through the configuration management of the storage area, it can adapt to the dynamic changes of the actual production situation and reasonably adjust the capacity of the storage area and the specifications of the stored products.

(2) Integrated online optimization of warehousing and distribution;

When the finished product enters the warehouse, the storage space is allocated to realize the positioning and storage of the finished steel strand product. Since the stacking position in the stacking storage area satisfies the constraints of packaged transportation, the allocation of storage space means the integrated online optimization of warehousing and packaged delivery, forming an orderly logistics management plan, reducing the cost of finished product storage and packaged transportation. The number of times of handling and stacking of the load is shortened, the loading time of the whole package is shortened, and the utilization rate of the loading capacity of the whole package is improved; The utilization rate of loading capacity shortens the loading time; the cost of logistics operations is generally reduced, and the packaging damage and quality problems of finished products caused by multiple reverse shipments of finished products caused by warehousing and loading are reduced.

(3) Multi-dimensional visual management of warehousing logistics based on virtual reality technology.

Using information technology, combining optimization technology, virtual reality technology, database technology and the specific business process of logistics process management at the end of the steel strand production line to realize the storage, positioning, storage, distribution, and departure of finished steel strand products. Multi-dimensional visualization and intelligent integrated management of business processing and logistics operations, adapt to the dynamic needs of actual production, and realize storage product specifications, stacking methods, storage properties and related distribution targets in each storage area according to the current storage status and production status And the flexible configuration of constraints realizes tabular digital management and graphical two-dimensional and three-dimensional visual management of warehoused goods. Effectively solve existing problems, reduce logistics costs and improve economic benefits.

Description of drawings

Fig. 1 is the production logistics process schematic diagram of steel strand product;

Fig. 2 is a schematic diagram of the working process of the steel strand finished product storage and distribution system according to the specific embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the steel strand finished product storage and distribution system according to the specific embodiment of the present invention;

Fig. 4 is the schematic diagram of the steel strand storage area of the specific embodiment of the present invention;

Fig. 5 is the schematic diagram of the planning and design of the steel strand storage area of the embodiment of the present invention;

Fig. 6 is a schematic diagram of a double-row double-stack stacking type according to a specific embodiment of the present invention;

Fig. 7 is a schematic diagram of a double-row single-stack stacking type according to a specific embodiment of the present invention;

Fig. 8 is a flow chart of location allocation of steel strand finished products according to a specific embodiment of the present invention;

Fig. 9 is a flow chart of calculating the distribution of steel strand finished products according to different means of transport according to the specific embodiment of the present invention;

Fig. 10 is the calculation flowchart of the less-than-truckload transportation and distribution of steel strand finished products according to the specific embodiment of the present invention;

Fig. 11 is a two-dimensional schematic diagram of storage area configuration according to a specific embodiment of the present invention, wherein (a) is a two-dimensional form of storage area configuration and a schematic diagram of the proportion of each stack type, and (b) is a two-dimensional view of different stack types in the storage area schematic diagram;

Fig. 12 is a visualized schematic diagram of in-stock product query according to a specific embodiment of the present invention;

Fig. 13 is a schematic diagram of a visualized change of storage location according to a specific embodiment of the present invention;

Fig. 14 is a schematic diagram of a two-dimensional graphical display of a storage area according to a specific embodiment of the present invention;

Fig. 15 is a flowchart of a storage and distribution method for steel strand finished products according to a specific embodiment of the present invention.

detailed description

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

The steel strand finished product storage and distribution system of this embodiment, as shown in Figure 2, is used to allocate storage locations for steel strand finished products in the storage area for positioning and storage, and to store the steel strand products in the storage area. The finished products are distributed and shipped, and the storage area is shown in Figure 4.

As shown in Figure 3, the system includes: a storage area configuration module, a product storage registration module, a storage location allocation module, a product distribution and delivery module, a product storage management module and a storage scene visualization module;

The storage area configuration module is used to configure the storage area according to the type and quantity of the steel strand finished products to be stored. The storage area configuration includes: setting the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area; changing The number of steel strand finished products in the buffer zone and stacking area; set the storage stacking type of the buffer zone, that is, the type and storage quantity of the steel strand finished products of the storage product; set the storage stacking type of the stacking area, that is The product type, storage quantity, upper limit of the total storage weight and lower limit of the total storage weight of the finished steel strand products stored in the stacking area;

The product warehousing registration module is used to register the warehousing information of steel strand finished products when each steel strand finished product is put into storage, and share data with the storage location allocation module through the database. The warehousing information includes: the product code of the finished steel strand, the weight of the finished steel strand, the specification, model and production time of the finished steel strand;

The storage location allocation module is used to allocate the location of the finished steel strand products according to the storage information of the finished steel strand products and generate the storage location handling plan for the finished steel strand products;

The product distribution and outbound module is used to calculate the distribution of finished steel strand products according to different means of transportation and generate a distribution plan for finished steel strand products;

The product warehouse management module is used to query inventory product data and obtain data display and data reports based on the statistical analysis of these information, as well as move, inventory, return, and scrap processing for specified products to form corresponding movement, inventory, return, and scrap operations Documents; the inventory product data includes product code, product type, product weight, production time, storage time, storage location and loading list information;

The storage scene visualization module is used to display the two-dimensional plan and three-dimensional map of the storage area, and to analyze the changes in the storage area caused by the operation of the storage area configuration module, product storage registration module, storage location allocation module, and product delivery module. The result of the change is displayed.

The storage area is used to place the finished steel strand products that have completed the storage registration and have not yet been assigned a storage space;

The buffer zone is used to store the finished steel strands that have been allocated but have not yet entered the stacking area;

The stacking area is used to store the finished steel strands that have been allocated and located in the stacking area.

The steel strand finished products in the storage area are treated as part-of-truckload transport and distribution of steel strand finished products when the vehicle is the vehicle;

The finished steel strand products in the buffer zone continue to participate in the location allocation of the subsequent steel strand finished product batches or as the steel strand finished products shipped as part-of-truckload transportation when the vehicle is the vehicle;

The steel strand finished product in the stacking area is regarded as the steel strand finished product shipped in bulk transport.

The buffer zone and the stacking area are converted into functional partitions or adjusted in storage capacity according to the actual production needs. The buffer zone and the stacking area can be converted into storage function types, as well as storage capacity (number of pieces, total weight), and storage product types can be set and changed. That is to switch the storage nature of the buffer zone and the stacking area according to the stacking position, and at the same time configure the storage product specification, stack type, and storage weight settings to make the entire storage area flexibly adapt to the needs of actual production.

The above storage and distribution system for steel strand finished products also includes a database and a system maintenance module. The database is used to store storage area and product information, operator information and operation authority, and operation logs; the system maintenance module is used to code revision information, data import and restore, generate operation logs, and manage operator information and permissions.

The method for storing and distributing steel strand finished products by using the above steel strand finished product storage and distribution system, as shown in Figure 15, includes the following steps:

Step 1: According to the actual shape and size of the industrial site where the storage area is located, the product type of the finished steel strand, the weight of the finished steel strand, the external dimensions of the finished steel strand, the type of transportation means and the load of the transportation means , set the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area, and aim at the buffer area and the stacking area, in order to maximize the utilization rate of the storage area, design the shape and size of different storage stacking types The storage stack type is the stacking form of the finished steel strand, and each stack type includes at least one stack position; the setting of the functional partition of the storage area in this embodiment is shown in Figure 5.

Design the storage stack type according to the loading requirements of the package (train) transportation, and select several stack types from the feasible alternative stack types to plan and design the entire storage area;

(1) Storage stack type is the stacking form of steel strand products in the warehouse. The characteristics of the storage stack type design in this system are: design the stacking quantity of products and the total weight of each product stack according to the load capacity and number of loaded pieces of the packaged transport (train carriage). There can be a variety of stacking forms, as long as the stacking form meets the requirements for the number of pieces and the total weight, it will be used as a feasible alternative stacking type to form a set of alternative stacking types.

(2) Considering that the actual storage area may have different shapes and sizes, in order to make full use of the area of the storage area, among the feasible alternative stack types, the stack type with suitable size and shape can be further optimized to be arranged in the corresponding storage area in different positions. The optimal principle is to be able to adapt to the shape and size of different locations on the site, so that the number of stacks arranged can make full use of the area of the storage area.

(3) For the arranged stack type, according to the requirements of the whole package (train) transportation, it is a calculation unit, called the stack, and the stacks are uniformly numbered, and marked at the corresponding position on the site with a signboard or an electronic screen.

Figure 6 shows two product stacks next to each other, each stack constitutes a complete transport unit, a total of two complete transport units, called: double row double stack (stack type). The distance between adjacent stacks is 0.1m, and there is a 0.8m working channel with other stacks. Each product stack can place 16-20 pieces of products according to actual needs, and the total weight of each stack can be 60 tons or 70 tons. By setting the number of pieces placed and the total weight of each stack, it can be configured to meet the requirements of package (train) transportation Various plans required, such as: 60 tons/16 pieces, 60 tons/18 pieces, 60 tons/20 pieces, 70 tons/18 pieces, 70 tons/20 pieces.

Figure 7 shows that two stacks next to each other form a complete transport unit, which is called a double-row single stack (stack type). A total of 16-20 pieces of products can be placed in the two stacks according to actual needs, and the total weight can be 60 tons or 70 tons. By setting the number of pieces placed and the total weight, various schemes can be formed to meet the requirements of package (train) transportation, such as: 60 tons/16 pieces, 60 tons/18 pieces, 60 tons/20 pieces, 70 tons/18 pieces, 70 tons/20 pieces.

The above two types of stacks are respectively arranged in different locations on the site, making full use of the storage area.

Step 2: Number each stack, and divide and number the storage area, buffer zone and stacking area respectively; Sequential numbering, the buffer area and the stacking area are divided into stacks, and the number is uniformly numbered according to the stacking position, and the number of layers and the position number of each stack are combined to carry out the numbering of the storage area, that is, the storage area number of the buffer area and the storage area of the stacking area The location number includes the stack number, layer number and position number;

Receiving area: storage is carried out in a tiled manner, and products that have been registered in the storage but have not been assigned specific storage locations for the time being are placed. Products in the receiving area can be used as products shipped by LTL transportation to participate in the calculation of LTL transportation stowage.

Buffer zone: This area stores products that cannot be stored in the stacking area temporarily after being allocated and calculated by storage space. There are two ways of storage in the buffer zone: flat laying and stacking, and these two ways can be switched and set according to the number of the stack. When the number of products stored in the numbered stack is small, it can be set to be stored in a flat manner; when the number of stored products is large, it can be set to be stored in a stacking mode. The products in the buffer zone can not only participate in the allocation calculation of subsequent batches, but also participate in the calculation of less-than-truckload transportation. After being calculated and stacked by the location allocation, the product can be shipped as a full-package product, and the product that has not entered the stack can be shipped as a part-than-truckload product after being calculated by the less-than-truckload transportation.

Stacking area: The stacking storage method is adopted, and the products configured in advance according to the requirements of the package transportation (weight, number of pieces) are stored according to the stacking positions. Products in the stacking area are shipped in full stacks for bulk transport. The stacking area can contain multiple/multiple different types of stacking positions, and each stacking position is designed with a corresponding stacking type and capacity according to the loading requirements of the bulk transportation, that is, the stacking form of the product, the number of pieces of products placed in each stack and the total weight.

Step 3: When the steel strand finished product is put into storage, the storage information of the steel strand finished product is registered in real time or in batches;

The warehousing information of the finished steel strand products includes: the product code of the finished steel strand products, the weight of the finished steel strand products, the specifications and models of the finished steel strand products, and the production time; Enter the code of the product, the weight of the product, the specification model of the product and the production time information by means of the method;

Step 4: According to the warehousing information of each batch of finished steel strand products, allocate the location of the finished steel strand products and generate a transportation plan for the location of the finished steel strand products; as shown in Figure 8;

Step 4.1: Store the steel strand finished products that have been registered in the warehouse and have not yet been allocated to the warehouse in the storage area;

Step 4.2: According to the specifications of the steel strand finished products to be allocated in the storage area, search the buffer zone for the corresponding specifications of the finished products temporarily stored in the buffer zone, and together with the finished products in the storage area, constitute the steel strands to be allocated in the storage area. The set of strand finished products, in the set of steel strand finished products of the location to be allocated, for each steel strand finished product j (j=1, 2) of each specification i (i=1, 2, ... I) , ... J) sort and number according to increasing weight, and all steel strand finished products to be allocated have unique numbers (i, j), where i=1, 2, ... I, j = 1, 2, ... J;

Step 4.3: Search in the stacking area or manually specify the stacking position k (k=1, 2...K) with the same finished product specification according to the steel strand finished product specification i to be allocated to form a stack to be loaded Bit set, determine the remaining capacity of stacking position k (k=1, 2...K) to be loaded, that is, the quantity of steel strand finished products and the total weight of steel strand finished products that can be loaded;

Step 4.4: Distribute the steel strand finished products in the storage space to be allocated to each stacking position in the stacking area;

Step 4.4.1: Initialize parameters i=1, j=1, k=1;

Step 4.4.2: For the k-th stacking position in the stacking area to be loaded of the finished product specification i, load the steel strand finished product (i, j) of the storage space to be allocated;

Step 4.4.3: Determine whether the total weight requirement of the stack is met, that is, the total weight of the accumulated steel strand finished products is between the upper limit and the lower limit of the total weight required by the stack, if yes, go to step 4.4.9 , if not, go to step 4.4.4;

Step 4.4.4: Judging whether the total weight of the steel strand finished products accumulatively loaded in the stack is greater than the upper limit of the total weight required by the stack, if yes, go to step 4.4.8, otherwise, go to step 4.4.5;

Step 4.4.5: Judging whether the quantity of the loaded steel strand finished product reaches the quantity required by the stack, if yes, go to step 4.4.7, otherwise perform step 4.4.6;

Step 4.4.6: Judging whether there are steel strand finished products of the same specification that are not pre-installed in the steel strand finished product collection of the storage space to be allocated, if yes, set j=j+1, that is, point to the next For the finished steel strand, go to step 4.4.2, otherwise go to step 4.4.11;

Step 4.4.7: Calculate the difference between the cumulative total weight of the finished steel strand products loaded in stack k and the lower limit of the total weight required for this stack, and take the unpacked steel strand finished products in order from the set of steel strand finished products to be allocated. Comparing the incoming steel strand finished product with the loaded steel strand finished product, if there is a weight difference with the loaded steel strand finished product, which is closer to the accumulation of the loaded steel strand finished product at stack k If the total weight of the steel strand finished product is different from the lower limit of the total weight required by the stack, replace the loaded steel strand finished product with the unloaded steel strand finished product, and update the steel strand in the location to be allocated The finished product number (i, j) in the finished product set, until the steel strand finished product with the specification i in the steel strand finished product set to be allocated are all compared, go to step 4.4.9;

Step 4.4.8: Return the last loaded steel strand finished product to the set of steel strand finished products in the location to be allocated, and perform step 4.4.9;

Step 4.4.9: Record the list of steel strand finished products loaded into stack k, and execute step 4.4.10;

Step 4.4.10: Determine whether the stacking positions in the stacking area to be loaded are all loaded (k=K), if yes, then go to step 4.4.12, otherwise let k=k+1, go to step 4.4.2;

Step 4.4.11: record the list of steel strand finished products loaded into stack k, and execute step 4.4.12;

Step 4.4.12: Judging whether the steel strand finished products of all specifications have been processed, if yes, then execute step 4.5, if not, set i=i+1, that is, point to the next specification of steel strand finished products, turn to Step 4.3;

Step 4.5: Determine whether there are steel strand finished products that have not been allocated to the stacking area in the collection of steel strand finished products that are to be allocated. Store in the free space in the buffer zone, otherwise go to step 4.6;

Step 4.6: Arrange the weights of the finished steel strands in each assigned stacking area in descending order, and arrange the steel strands in descending order according to the stacking type of each stacking position, with the principle of first the lower layer and then the upper layer, and the weight is from heavy to light. The finished strands are loaded into each location of the assigned stack;

Step 4.7: According to the location number assigned to each steel strand finished product, generate a steel strand finished product location handling plan;

The location handling plan for steel strand finished products includes: steel strand finished product code, steel strand finished product initial position, and steel strand finished product target location; the location allocation results of steel strand finished product are shown in Table 1.

Table 1 Location allocation results of steel strand finished products

Step 5: According to the steel strand finished product location handling plan, move the steel strand finished products in the storage area: store the steel strand finished products that have been allocated storage space and have not yet entered the stacking area in the corresponding buffer zone Storage space, store the steel strand finished products that have been assigned storage space and enter the stacking area to the corresponding storage space in the stacking area;

Step 6: When it is necessary to transport the finished steel strand, calculate the distribution of the finished steel strand according to different means of transportation and generate a distribution plan for the finished steel strand, as shown in Figure 9, when the means of transportation is a train When the finished product of steel strand is calculated, the package transportation and distribution plan of the finished product of steel strand is generated; The less-than-truckload transportation and distribution plan for stranded wire finished products is as follows:

If the product specifications of the finished steel strand products that meet the product delivery requirements are found in the stacking area or can be manually specified, and the stacking positions of the finished steel strand products that meet the requirements for the number and weight of the train carriages loaded in the package are found, each The number of the stack is bound to the number of the corresponding train car, and then the goods position number of the finished steel strand product in the stack is matched with the number of the corresponding train car to generate a packaged transport package for the finished steel strand Otherwise, adjust the delivery plan of the steel strand finished product or use the whole package transportation as the less-than-truckload transportation task, that is, calculate the less-than-truckload transportation and distribution of the steel strand finished product based on the number and weight of the package transportation requirements, Generate a packaged transportation and distribution plan for steel strand finished products by means of less-than-truckload transportation and distribution;

The package transportation and distribution plan for steel strand finished products includes the product code of each steel strand finished product, its stack code and cargo location code, information on means of transportation and customer information;

When the means of transportation is a car, calculate the less-than-truckload transportation and distribution of steel strand finished products, and generate a less-than-truckload transportation and distribution plan for steel strand finished products, as shown in Figure 10. The specific steps are as follows:

Step 1: Determine the set of finished products to be shipped in the steel strand finished products in the buffer zone and/or storage area according to the specifications of the finished steel strand products required by the transportation task;

Step 2: According to the weight of the finished products in the steel strand finished products collection to be shipped, they are sorted from light to heavy and preloaded into the transportation vehicle in order until the specified number of products loaded on the transportation vehicle is reached;

Step 3: Judging whether the total weight of the finished steel strand products pre-loaded into the vehicle meets the weight of the finished steel strand products to be shipped, that is, the total weight of the finished steel strand products pre-loaded into the vehicle is within the weight of the vehicle If it is between the upper and lower limits of the load, if yes, complete the calculation of the less-than-truckload transportation and distribution of steel strand finished products, and generate a less-than-truckload transportation and distribution plan for steel strand finished products; if not, go to step 4;

Step 4: Determine whether the total weight of the pre-loaded steel strand finished product is greater than the upper limit of the vehicle’s load, if yes, adjust the delivery plan for the steel strand finished product, if not, go to step five step;

Step 5: Calculate the difference between the total weight of the finished product of the steel strand preloaded into the means of transport and the lower limit of the load of the means of transport;

Step 6: Compare the finished product of steel strand to be shipped with the finished product of steel strand pre-loaded into the vehicle one by one, if there is a difference in weight between the finished product of steel strand pre-loaded into the vehicle and closer to the weight of the finished product of steel strand pre-loaded If the difference between the total weight of the steel strand finished product pre-loaded into the vehicle and the lower limit of the load of the vehicle is the difference between the finished steel strand product pre-loaded into the vehicle, the finished steel strand product to be shipped will replace the finished product Finished strands pre-loaded into means of transport;

Step 7: Generate less-than-truckload transportation and distribution of finished steel strand products based on the location number of the finished steel strand products that have been shipped, the product code of the finished steel strand products that have been shipped, information on the means of transport, driver information, and customer unit information Program;

The distribution calculation of the steel strand finished product in the present embodiment is as shown in Table 2:

Table 2 Calculation results of distribution and transportation of steel strand finished products

The distribution of products is divided into two categories, one is full-package transportation for train transportation, and the other is less-than-truckload transportation for automobile transportation.

For train-oriented bulk transportation, firstly, according to the requirements of the train carriage type, carriage number, and loading weight provided by the railway department, and at the same time, according to the order contract and the requirements of the enterprise product delivery plan, find the product type and the total weight of the stack in the storage area to meet the requirements. The product stacks that have been prepared for the whole stack are assigned to the number of the corresponding train car, and the train loading document is generated, and the following are given: each product code and its storage location code, product customer information, train car number, and train car loading If you do not find a product stack that fully meets the transportation needs, feedback information to adjust the product delivery plan, or use human-computer interaction or less-than-truckload transportation (use the loading weight of the train car as the loading weight of the car, from the buffer zone Calculated in the collection of products with less than full stacks) distribution method, carry out distribution from the buffer zone of the products in storage or the position of the less than full stacks, or feed back the information to revise the company's product delivery plan, and then carry out the above distribution process;

For less-than-truckload transportation for automobiles, firstly, according to the requirements of the loading weight of the automobiles, and at the same time according to the requirements of the order contract and the product delivery plan of the enterprise, the products in the storage buffer zone and the storage area are calculated, the product codes that meet the transportation requirements are selected, and the vehicle loading documents are generated. , give: product code, storage location code, car license plate, driver and customer unit information;

For full-package transportation, select from the stacks in the fully-stacked stacking area, and integrate and optimize warehousing and full-package shipments, eliminating the process of re-distribution, improving distribution efficiency, and reducing the number of finished products in storage and distribution Unlucky times.

Step 7: According to the steel strand finished product distribution plan, the steel strand finished product is delivered out of the warehouse, loaded into the transportation tool, and the distribution is completed.

In this embodiment, the changes in the storage area caused by the storage area configuration, product entry registration, storage location allocation, and product distribution out of the warehouse are managed visually by using two-dimensional tables, two-dimensional storage scene diagrams, and three-dimensional storage scene diagrams. .

In the process of storage area configuration, two-dimensional data is used to set the storage stack type for each stack in the buffer zone and stacking area. Including: specify the storage product specifications of the stack, the quantity of products stored, the stacking form, and the upper and lower limits of the total weight of the stack storage products. At the same time, the setting status of the entire storage area is displayed in a two-dimensional graphic manner. Including: the number of various types of stacks, the proportion of the entire storage area, and the storage status of each stack (empty stacks, the number of loaded products). Products of various specifications are represented by different colors. When the stacking type and counterweight are determined, the corresponding stacking color will be consistent with the color set by the system in the two-dimensional schematic diagram, and the stacking will be marked. The counterweight target is shown in Fig. 11(a), (b).

Visualization of product warehousing, palletizing and location allocation: Direct input and barcode scanning are used to store warehousing product information in two-dimensional form, including: product number, weight, specification, and production time.

After the product is registered in the warehouse, the product will be displayed in the storage area as shown in the storage thumbnail or the warehouse floor plan in the form of a two-dimensional icon.

Select the products in the storage area, and perform palletizing and location calculation together with the products in the buffer zone, and obtain the results of palletizing and location allocation, which are displayed in a two-dimensional data table, and at the same time, the icon corresponding to the product is flashing in the graphic display area ;Further, you can perform product selection, location pre-positioning, pre-positioning cancellation, product cancellation, and product placement operations. At the same time as product pre-positioning, the corresponding product icon moves to the pre-allocated storage space and flashes. After confirmation, the flashing stops, and the pre-positioning Or after canceling the product, the product icon will be deleted from the pre-allocated storage location or the location allocation result and returned to the original location; after the placement is confirmed, the product storage location data will be updated, and the product icon will be displayed in the corresponding storage graphics location. Display and generate a storage location placement operation sheet.

Visualization of products in storage: display the storage status of products in all storage locations, query by stack/slot and product number, and display it graphically in the storage graphics window, and the detailed information of the stack/storage placed on the right A floating window is displayed. As shown in Figure 12.

Visual change of warehousing location: Change the location of the product in the warehouse by inputting the product change location and dragging the mouse. After the change is confirmed, a warehouse transfer operation sheet is generated, as shown in Figure 13.

Two-dimensional/three-dimensional graphical display of the storage area: two-dimensional graphical display of the storage area, as shown in Figure 14. In addition, the storage area can also be displayed in multi-angle three-dimensional graphics.

Claims (2)

1. A method for storage and distribution of steel strand finished products, using a steel strand finished product storage and distribution system for allocating storage locations in storage areas for steel strand finished products for positioning and storage, and To distribute and transport the finished steel strand products in the storage area, the system includes: storage area configuration module, product storage registration module, storage location allocation module, product distribution and delivery module, product storage management module and storage scene visualization module; The storage area configuration module is used to configure the storage area according to the type and quantity of the steel strand finished products to be stored. The storage area configuration includes: setting the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area ;Change the number of steel strand finished products in the buffer zone and stacking area; set the storage stack type of the buffer zone, that is, the type and storage quantity of the steel strand finished products of the storage product; set the storage stack type of the stacking area , that is, the product type, storage quantity, upper limit of the total storage weight and lower limit of the total storage weight of the finished steel strand products stored in the stacking area; The product warehousing registration module is used to register the warehousing information of the steel strand finished products when each steel strand finished product is put into storage, and share data with the storage location allocation module through the database. The warehousing information of the finished product includes: the product code of the finished steel strand, the weight of the finished steel strand, the specification and model of the finished steel strand, and the production time; The storage location allocation module is used to allocate the location of the finished steel strand products according to the warehousing information of the finished steel strand products and generate a transportation plan for the location of the finished steel strand products; The product distribution and delivery module is used to calculate the distribution of finished steel strand products according to different means of transportation and generate a distribution plan for finished steel strand products; The product warehousing management module is used to inquire about product data in stock and to obtain data display and data reports according to statistical analysis of these information, and to carry out movement, inventory, withdrawal, and scrapping of designated products to form corresponding movement, inventory, withdrawal, Scrapping operation documents; the inventory product data includes product code, product type, product weight, production time, storage time, storage location and loading list information; The storage scene visualization module is used to display the two-dimensional plan and three-dimensional diagram of the storage area, and the storage area configuration module, the product storage registration module, the storage location allocation module, and the product distribution module. The results of the changes are displayed; It is characterized in that: comprising the following steps: Step 1: According to the actual shape and size of the industrial site where the storage area is located, the product type of the finished steel strand, the weight of the finished steel strand, the external dimensions of the finished steel strand, the type of transportation means and the load of the transportation means , set the functional partitions of the storage area, that is, the storage area, the buffer area and the stacking area, and aim at the buffer area and the stacking area, maximize the utilization rate of the storage area, design the shape and size of different storage stacking types, The storage stack type is the stacking form of the finished steel strand, and each stack type contains at least one stack position; Step 2: Number each stack, and divide and number the storage area, buffer zone and stacking area respectively; the storage area is arranged in a tiled manner and divided into multiple different storage areas , sequentially numbered according to the position of the cargo space, the buffer zone and the stacking area are divided into stacks, and the number is uniformly numbered according to the stack, and the number of the cargo space is combined with the number of layers and the position number of each stack, that is, the cargo space of the buffer zone Both the number and the location number of the stacking area include the stack number, layer number and position number; Step 3: When each steel strand finished product enters the warehouse, the storage information of the steel strand finished product is registered in real time or in batches; The warehousing information of the finished steel strand product includes: the product code of the finished steel strand product, the weight of the finished steel strand product, the specification model and production time of the finished steel strand product; Step 4: According to the warehousing information of each batch of finished steel strand products, allocate the location of the finished steel strand products and generate a transportation plan for the location of the finished steel strand products; Step 4.1: Store the steel strand finished products that have been registered in the warehouse and have not yet been allocated to the warehouse in the storage area; Step 4.2: According to the specifications of the steel strand finished products to be allocated in the storage area, search the buffer zone for the corresponding specifications of the finished products temporarily stored in the buffer zone, and together with the finished products in the storage area, constitute the steel strands to be allocated in the storage area. Strand finished product set, in the steel strand finished product set to be allocated, sort each steel strand finished product of each specification in increasing weight; Step 4.3: Search or designate the stacks to be loaded with the same finished product specifications in the stacking area according to the specifications of the steel strand finished products to be allocated to form a set of stacks to be loaded, and determine the remaining capacity of the stacks to be loaded, The quantity of finished products ready to be loaded with steel strands and the total weight of finished products ready to be loaded with steel strands; Step 4.4: Distribute the steel strand finished products in the storage space to be allocated to each stacking position in the stacking area; Step 4.5: Determine whether there are steel strand finished products that have not entered the stacking area in the collection of steel strand finished products to be allocated. If yes, store the steel strand finished products that have not been allocated to the stacking area in Free storage space in the buffer zone, if not, go to step 4.6; Step 4.6: Arrange the weight of the steel strand finished products to be loaded in each allocated stacking area in descending order, according to the stacking type of each stacking position, the principle is that the lower layer is first and then the upper layer, and the weight is from heavy to light. Load the finished steel strands to be loaded into each location of the assigned stack; Step 4.7: According to the location number assigned to each steel strand finished product to be installed, generate a storage location handling plan for the steel strand finished product; The storage location handling plan for the steel strand finished product includes: the code of the steel strand finished product, the initial position of the steel strand finished product, and the target position of the steel strand finished product; Step 5: According to the steel strand finished product location handling plan, move the steel strand finished products in the storage area: store the steel strand finished products that have been allocated storage space and have not yet entered the stacking area in the corresponding buffer zone Storage space, store the steel strand finished products that have been assigned storage space and enter the stacking area to the corresponding storage space in the stacking area; Step 6: When it is necessary to transport the finished steel strand, calculate the distribution of the finished steel strand according to different means of transportation and generate a distribution plan for the finished steel strand. The complete shipment and distribution calculation of the finished product generates the complete shipment and distribution plan of the steel strand finished product, as follows: If the product specifications of the finished steel strand products that meet the product delivery requirements are found in the stacking area or can be manually specified, and the stacking positions of the finished steel strand products that meet the requirements for the number and weight of the train carriages loaded in the package are found, each The number of the stack is bound to the number of the corresponding train car, and then the goods position number of the finished steel strand product in the stack is matched with the number of the corresponding train car to generate a packaged transport package for the finished steel strand Otherwise, adjust the delivery plan of the steel strand finished product or use the whole package transportation as the less-than-truckload transportation task, that is, calculate the less-than-truckload transportation and distribution of the steel strand finished product based on the number and weight of the package transportation requirements, Generate a packaged transportation and distribution plan for steel strand finished products by means of less-than-truckload transportation and distribution; The packaged transportation and distribution plan for the steel strand finished products includes the product code of each steel strand finished product and its stack code and location code, information on the means of transportation and customer information; Step 7: According to the steel strand finished product distribution plan, the steel strand finished product is delivered out of the warehouse, loaded into the transportation tool, and the distribution is completed. 2. The method for storing and distributing steel strand finished products according to claim 1, characterized in that: when the means of transport is a car, the calculation of less-than-truckload transportation and distribution of steel strand finished products is performed to generate steel strand The less-than-truckload transportation and distribution plan for finished products, the specific steps are as follows: Step 1: Determine the set of finished products to be shipped in the steel strand finished products in the buffer zone and/or storage area according to the specifications of the finished steel strand products required by the transportation task; Step 2: According to the weight of the finished products in the steel strand finished product collection to be shipped, they are sorted from light to heavy and preloaded into the transportation vehicle in order until the specified number of products loaded by the transportation vehicle is reached; Step 3: Judging whether the total weight of the finished steel strand products pre-loaded into the vehicle meets the weight of the finished steel strand products to be shipped, that is, the total weight of the finished steel strand products pre-loaded into the vehicle is within the weight of the vehicle If it is between the upper and lower limits of the load, if yes, complete the calculation of the less-than-truckload transportation and distribution of steel strand finished products, and generate a less-than-truckload transportation and distribution plan for steel strand finished products; if not, go to step 4; Step 4: Determine whether the total weight of the pre-loaded steel strand finished product is greater than the upper limit of the vehicle’s load, if yes, adjust the delivery plan for the steel strand finished product, if not, go to step five step; Step 5: Calculate the difference between the total weight of the finished product of the steel strand preloaded into the means of transport and the lower limit of the load of the means of transport; Step 6: Compare the finished product of steel strand to be shipped with the finished product of steel strand pre-loaded into the vehicle one by one, if there is a difference in weight between the finished product of steel strand pre-loaded into the vehicle and closer to the weight of the finished product of steel strand pre-loaded If the difference between the total weight of the steel strand finished product pre-loaded into the vehicle and the lower limit of the load of the vehicle is the difference between the finished steel strand product pre-loaded into the vehicle, the finished steel strand product to be shipped will replace the finished product Finished strands pre-loaded into means of transport; Step 7: Generate less-than-truckload transportation and distribution of finished steel strand products based on the location number of the finished steel strand products that have been shipped, the product code of the finished steel strand products that have been shipped, information on the means of transport, driver information, and customer unit information Program.