JP5870637B2 - Operation support method and operation support apparatus - Google Patents

Description

  The present invention relates to an operation support method and an operation support apparatus for a product place that is provided in a steel product manufacturing facility and is stacked and stored until the steel product is shipped.

  In the steel product manufacturing facility, in the product place provided in the factory, the place operation of storing the finally produced steel product until shipment is performed. In general, in order to make effective use of the floor area of a product storage area, product storage areas are provided according to dimensions by dividing the floor space in accordance with the product dimensions. The area ratio of the product storage area for each dimension is determined based on, for example, the product ratio (product mix) of each dimension. However, since this product mix changes depending on market needs, a product storage of a certain size may temporarily be insufficient, or conversely.

  In view of this, a method for performing efficient parking operation has been proposed. For example, in Patent Document 1, when cutting board products having different dimensions are mixedly loaded in the same place, the limit value of the height (mountain height) of stacked products, the specification of the crane, the size of the product, etc. In consideration of the above, a method is described in which the amount of handling operation by the crane (the amount of handling) and the product placement are determined to improve the efficiency of the handling amount and the placement operation.

JP-A-6-179525

  By the way, plate-shaped steel products (thick steel plates) have various widths and lengths, and their ranges are very large. Therefore, it is inefficient to perform a place operation in which compartments are limited. Therefore, by dividing the width and length into sections of basic dimensions, each time a plate-shaped steel product is brought in, one or more sections are combined to divide the product storage area with the size corresponding to the product dimensions. ing.

  Conventionally, the yard operation with such a change of section relies on the experience and intuition of the worker. Even with the method described in Patent Document 1 that assumes the operation of a predetermined section, the efficiency of the operation of the storage with such a change in the section cannot be expected. On the other hand, the product cannot be secured and the product cannot be secured. May stay. If it does so, retention will propagate to the upstream process of manufacture of steel products gradually, and there exists a possibility that manufacture itself may stop eventually.

  The present invention has been made in view of the above, and provides an operation support method and an operation support apparatus capable of realizing the operation of a product place with a change of a section while considering the handling amount and the loading state. The purpose is to do.

  In order to solve the above-described problems and achieve the object, an operation support method according to the present invention is provided in a steel product manufacturing facility, and is a product place where the steel product is stacked and stored until the steel product is shipped. A product information including at least information on a shipping lot of the steel product arriving at the product yard and information on dimensions of the shipping lot, and a current stock status of the steel product at the product yard, A data input process for inputting the section setting information for defining the section of the product storage area, the constraint condition for the operation of the product storage area, and the constraint condition for the search for the product storage area, and the steel products are stacked for each shipping lot. The inventory situation is predicted, and the shipping lot arrives at the product storage based on the dimensions of the shipping lot, the operation constraints of the product storage, and the search conditions of the product storage. The receiving lot search process for searching for a product storage place where the shipping lot can be carried in, and the product lot dimensions and the product when the product storage place capable of carrying the shipping lot cannot be secured in the receiving storage place search process. Based on the constraint conditions for the operation of the storage area and the search conditions for the product storage area, the distribution pattern for integrating the steel products of each stacked shipping lot into the other shipping lots stacked, and the distribution pattern For each of the replacement place search step for searching the product place where the shipping lot can be carried by replacement, and the replacement of the plurality of patterns searched in the replacement place search step, the handling amount and the loading state of the steel product Determining an evaluation value based on the evaluation value, determining an optimal replacement pattern based on the evaluation value and a product storage area secured by the replacement, Characterized in that it comprises a determining step of changing the constant information.

  Further, the operation support method according to the present invention includes a constraint condition changing step for changing the constraint condition for the operation of the product location and the constraint condition for the search for the product location in the above invention, wherein the receiving location search step includes When the product storage operation constraint condition and the product storage search constraint condition are changed, the product storage operation constraint condition and the product storage search constraint condition are changed. It is characterized by searching for a product place to carry a shipping lot arriving at the place.

  Further, in the operation support method according to the present invention, in the above invention, when the replacement place search step cannot secure a product place where the shipping lot can be carried in, error information and a restriction condition for the operation of the product place And a restriction request for selecting whether or not to change the search for the product storage location is displayed and the constraint condition changing step includes a constraint condition for the operation of the product storage according to a selection operation for the notification of the selection request. And the search conditions for searching for the product place are changed.

  The operation support method according to the present invention is the operation support method according to the above invention, wherein the product storage location search constraint condition is an extraction condition for extracting an evaluation target in the evaluation process from the replacement pattern, and the evaluation It is the upper limit number of extraction of evaluation targets in the process.

  Further, in the operation support method according to the present invention, in the above invention, the operation conditions of the product storage are stacked in the overall dimensions of the product storage defined in the section setting information and the product storage. It is the upper limit number of the steel products.

  The operation support apparatus according to the present invention is an operation support apparatus for a product storage provided in a steel product manufacturing facility and stacked and stored until the steel product is shipped, the product storage Product information including at least information on the shipping lot of the steel product arriving at the site and information on the dimensions of the shipping lot, the current stock status of the steel product in the product storage, and the section setting information that defines the section of the product storage And a data input means for inputting the operation constraints of the product storage area and the search conditions for searching the product storage area, and predicting the stock situation when steel products are stacked for each shipping lot, Based on the dimensions of the lot, the restrictions on the operation of the product area, and the restrictions on the search for the product area, the production lot that can be loaded when the shipping lot arrives at the product area A receiving place searching means for searching for a place, and when the receiving place searching means cannot secure a product place where the shipping lot can be carried in, the dimensions of the shipping lot, restrictions on the operation of the product place, and the product place Based on the search constraint conditions, a replacement pattern for integrating steel products for each stacked shipping lot into other stacked shipping lots, and a product that enables the shipping lot to be brought in by the replacement A replacement place search means for searching for a place, and an evaluation means for calculating an evaluation value based on the handling amount and the loading state of the steel product for each of the replacements of a plurality of patterns searched by the replacement place search means; And determining means for determining an optimal replacement pattern and a product storage area secured by the replacement based on the evaluation value, and changing the section setting information. The features.

  According to the present invention, a shipping lot having different dimensions can be brought to one mountain based on an evaluation value representing a handling amount and a loading state, and a product place with a change in section can be secured. It becomes possible to realize the operation of the product storage with the change of the section while taking the above into consideration.

FIG. 1 is a diagram showing an outline of equipment for manufacturing steel products. FIG. 2 is an explanatory diagram for explaining the outline of the operation support processing of the present embodiment. FIG. 3 is a block diagram showing an example of the overall configuration of the product storage operation system. FIG. 4 is a diagram illustrating a data configuration example of the product information file. FIG. 5 is a diagram illustrating a data configuration example of the product-specific status file. FIG. 6 is a diagram illustrating an example of the data configuration of a placement-specific situation file. FIG. 7 is a diagram illustrating a data configuration example of the placement setting map file. FIG. 8 is an explanatory diagram for explaining the setting status of the product storage. FIG. 9 is a diagram illustrating a data configuration example of the storage location operation restriction file. FIG. 10 is a diagram illustrating a data configuration example of the search condition file. FIG. 11 is a diagram illustrating a data configuration example of the operation instruction file. FIG. 12 is a flowchart illustrating a processing procedure of an operation support process performed by the operation support apparatus. FIG. 13 is a diagram illustrating a data configuration example after replacement of the placement setting map file.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment for implementing an operation support method and an operation support apparatus for a product storage according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments. Moreover, in description of drawing, the same code | symbol is attached | subjected and shown to the same part.

  The operation support method and the operation support apparatus for the product place according to the present embodiment are, for example, the same type (same size) plate having the same destination (shipment destination) such as a customer or a relay base and the scheduled shipping date. When storing the product group as a single shipping lot in the product storage area, bring together multiple shipping lots with different dimensions to one mountain, taking into account the handling amount of handling equipment such as cranes and the product loading state ( To secure an empty product storage area. By integrating a plurality of adjacent empty product depots and changing the product depot, a product depot (acceptance depot) according to the dimensions of the product to be carried in is secured.

  First, a steel product manufacturing facility to which the product storage operation support method and the operation support apparatus of the present embodiment are applied will be described. FIG. 1 is a diagram showing a facility outline of a steel product manufacturing facility 1. As shown in FIG. 1, a steel product manufacturing facility 1 includes a rolling machine 11 that rolls steel sheets, a cutting machine 13 that cuts steel sheets rolled by the rolling machine 11 into predetermined dimensions, and a cutting machine 13. An inspection device 15 for inspecting the cut steel product and a product storage 17 for storing the steel product that has passed the inspection by the inspection device 15 are arranged in series in this order, and the steel product (thick steel plate; Hereinafter, it is referred to as “plate product”.

  The product storage 17 stores the plate-like product that has arrived from the inspection device 15 until the plate-like product is shipped. The product storage space 17 is divided into a plurality of spaces, and in each of the partitioned product storage spaces 17, the plate-like products carried into the product storage space 17 are stacked as separate piles for each shipping lot. Stored.

  Next, an outline of the operation support processing according to the present embodiment will be described with reference to FIG. In the present embodiment, the product storage room 17 is expressed in units of basic dimensions. 2 is configured by combining sections (thin line frames in the figure) having basic dimensions of 12 in the width direction and 2 in the length direction of the plate-like products to be stacked. In the initial state, five product places (thick line frames in the figure) are set. The numbers in the figure represent the number of plate products stacked in each product storage area. Here, the upper limit of the number of plate-shaped products that can be stacked in each product storage area is 20, and when shipping lots with different dimensions are stacked, as a rule, the shipping lots with larger dimensions are loaded on the shipping lots with smaller dimensions. I will not let you.

  When a shipping lot consisting of 13 plate products is carried into this product storage area, there is no empty product storage area. In addition, the shipping lot that can be loaded can be stacked in the product storage area with three dimensions in the width direction, but from the limit condition of the upper limit number of 20 sheets, on the shipping lot already stacked, Furthermore, there is no room to stack 13 sheets. Therefore, an empty product place is secured by replacement of a shipping lot in any of the product places, and a receiving place for a shipped lot to be carried in is set. Regarding the verification of the dimensions of the product storage area, the product storage area illustrated in FIG. 2 has two sections in the length direction, and therefore the verification of the dimensions in the length direction is omitted.

  FIG. 2 illustrates two patterns of replacement examples (replacement place candidates) extracted by an operation support process described later. The replacement place candidate 1 executes the replacement in which the adjacent 8 shipping lots and 7 shipping lots are moved onto the 10 shipping lots and the 3 shipping lots, respectively, and the dimension in the width direction is changed. It secures four empty product places and sets a receiving place whose width direction is 3 sections (changes the product place section). In addition, the replacement place candidate 2 executes the replacement in which three adjacent shipment lots and eight shipment lots are stacked on the seven shipment lots, and an empty product place having a width direction of 4 sections is executed. It is ensured and a receiving place having a width of 3 sections is set.

  In addition, the operation support process evaluates the extracted multiple replacement site candidates from the viewpoints of handling amount (number of moving sheets) and loading conditions (limitation of upper and lower shipping lot dimensions), and optimal replacement Determine the placement candidate. Specific examples of evaluation will be described later.

  Next, the configuration of the product storage operation system 2 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram showing an example of the overall configuration of the product storage operation system 2 in the present embodiment. As shown in FIG. 3, the product storage operation system 2 includes an operation support device 3, a database 4, a terminal 5, and a distribution device 6, and the database 4, the terminal 5, and the distribution device 6 are connected to the operation support device 3. They are connected to each other and can send and receive data.

  The operation support apparatus 3 is an output of various storage devices such as a CPU, various IC memories such as ROM and RAM such as flash memory that can be updated and recorded, a storage medium such as a hard disk and a CD-ROM, a communication device, a display device, and a printing device. It can be realized by a known hardware configuration including an apparatus, an input device, an interface device for connecting each unit, or connecting an external input, and a general-purpose computer such as a workstation or a personal computer can be used. The operation support device 3 predicts the setting change of the product storage 17 by performing a simulation of moving the product inventory when the plate-shaped product is brought into the product storage 17, and handles the handling amount of a handling facility such as a crane described later. A process (operation support process) for proposing the operation of the product storage 17 with the change of the section is performed in consideration of the product loading state. The operation support apparatus 3 can be realized by storing a program for realizing the operation support process in a storage device, and reading and executing the program.

  The database 4 stores and manages data used for operation support processing. The database 4 stores a product information file 41, an inventory status file 42, a placement setting map file 43, a placement operation restriction file 44, a search condition file 45, and an operation instruction file 46, which will be described later.

  FIG. 4 is a diagram illustrating a data configuration example of the product information file 41. As shown in FIG. 4, the product information file 41 is associated with a product ID that is uniquely assigned to a plate-like product arriving at the product storage 17, and has a plate thickness (mm) and a width ( m), length (m), planned shipping date, identification number of the shipping lot, and destination code assigned to the destination of this shipping lot are set and registered.

  As shown in FIG. 3, the stock status file 42 stores a product-specific status file 421 and a location-specific status file 422. FIG. 5 is a diagram illustrating a data configuration example of the product-specific status file 421. The product-specific status file 421 stores the stock status of plate products currently stored in the product storage area 17. Specifically, as shown in FIG. 5, in the product-specific status file 421, the plates stacked in the corresponding product place 17 in association with the place IDs uniquely assigned to the product place 17. The product ID of the product, the shipment lot of the corresponding plate product, the plate thickness (mm), the width (m), and the length (m) are set and registered.

  FIG. 6 is a diagram illustrating a data configuration example of the placement-specific situation file 422. The placement status file 422 stores the stock status of the plate products currently stacked in the corresponding product placement 17 for each of the plurality of product placements 17. Specifically, as illustrated in FIG. 6, the placement-specific status file 422 is associated with the placement ID, and the total number of plate products stacked in the corresponding product placement 17 and the corresponding product placement 17. The total thickness (mountain height) of the plate products stacked on the plate, the maximum width (maximum width) of the plate products stacked on the corresponding product storage 17, and the corresponding product storage 17 The maximum value (maximum length) of the plate-like products stacked in the table is set and registered.

  FIG. 7 is a diagram illustrating a data configuration example of the placement setting map file 43. This placement setting map file 43 stores the current setting state of the product placement 17. Specifically, as shown in FIG. 7, the placement setting map file 43 is registered with the dimensions (width and length) of the corresponding product placement 17 set in association with the placement ID.

  In the present embodiment, as described above, the product storage space 17 is expressed in units of basic dimensions. FIG. 8 is a diagram for explaining a setting example of the product storage 17 and a display method of the setting status. As shown in FIG. 8, in the present embodiment, the entire product place 17 is configured by combining sections of basic dimensions of 12 in the width direction and 2 in the length direction. The place ID of each product place 17 is represented by the position of the upper left section of the corresponding product place 17. Here, the position is a value in the width direction (one of 1, 2,..., 12 in the example of FIG. 8) and a value in the length direction (A in the example of FIG. 8) in units of basic dimension sections. , B)). Moreover, the dimension of each product storage place 17 is represented by the number of the width direction of the division of a basic dimension, and the number of the length direction. FIG. 8 shows the setting status (thick line frame in FIG. 8) of the five product places 17 where the place IDs are 1A, 4A, 6A, 8A, and 10A, respectively. For example, the product place 17 having a place ID = 1A, a width = 3, and a length = 2 has a total of three in the width (right) direction and two in the length (down) direction from the position represented by 1A. It shows that the section having six basic dimensions is set in combination.

  FIG. 9 is a diagram illustrating a data configuration example of the storage location operation restriction file 44. The placement operation restriction file 44 stores restriction conditions related to the stacking of plate-like products with respect to the product place 17. Specifically, as shown in FIG. 9, the placement operation restriction file 44 includes the number of divisions of the basic dimensions in the width direction (the number of placement divisions (width)) and the basic dimensions in the length direction for the entire product placement 17. The numerical values are set and registered for each of the items of the number of sections (the number of placement sections (length)) and the maximum number of peaks. Specifically, the range of the operational product storage 17 used as a constraint for the operation of the product storage 17 (the number in the width direction and the number in the length direction of the basic dimension section) and the product storage 17 can be stacked. The upper limit number of plate products is set and registered.

  FIG. 10 is a diagram illustrating a data configuration example of the search condition file 45. The search condition file 45 stores constraint conditions in a first replacement place candidate search process and a second replacement place candidate search process described later. Specifically, as shown in FIG. 10, the search condition file 45 includes an upper limit number of candidates for replacement extracted by the first replacement site candidate search process and the second replacement site candidate search process (candidate number upper limit). ) And constraint conditions (candidate extraction conditions) for extracting replacement candidates are set and registered.

  FIG. 11 is a diagram illustrating a data configuration example of the operation instruction file 46. The operation instruction file 46 is recorded by a result output process described later. Specifically, as shown in FIG. 11, the operation instruction file 46 includes a data table in which product IDs, scheduled shipping dates, destination codes, shipping lots, placement IDs, and placement dates are associated. It is. The placement ID of the product placement 17 where the corresponding plate product is placed is set in the placement ID. In the placement date, a date for placing the corresponding plate product is set. The replacement instruction is represented by setting a plurality of placement IDs and placement dates in association with the same product ID.

  The terminal 5 performs data communication with the operation support apparatus 3, and displays the result of the operation support process performed by the operation support apparatus 3. The terminal 5 is realized by a personal computer or the like, for example.

  The distribution equipment 6 includes handling equipment such as a crane for carrying the plate-like products that have finished the inspection by the inspection device 15 and arrived at the product storage 17 into the product storage 17 and stacking them. The physical distribution equipment 6 carries the plate-like products that have arrived at the inspection device 15 into the product storage 17 by means of handling equipment and stacks them.

  Next, with reference to the flowchart of FIG. 12, the processing procedure of the operation support process performed by the operation support apparatus 3 of the present embodiment will be described. The flowchart shown in FIG. 12 starts when, for example, the operator operates the terminal 5 to designate a shipping lot to be carried in and instruct the operation support apparatus 3 to execute the operation support process. The operation support process is performed in step S1. Proceed to the process.

  In the process of step S1, the operation support apparatus 3 first executes a data input process as a data input means, and from the database 4, the product information file 41, the inventory status file 42, the placement setting map file 43, and the placement operation restriction file 44. The search condition file 45 is read out and input. Thereby, the process of step S1 is completed and the operation support process proceeds to the process of step S2.

  In the process of step S2, the operation support apparatus 3 executes a receiving place search process, and searches for the presence or absence of the product place 17 that can stack the shipping lots to be loaded. First, the operation support apparatus 3 refers to the product information file 41 to extract information on plate products that constitute a shipment lot to be carried in, and determines the maximum value (the maximum value of the width and the maximum value of the dimensions of the plate product group). From the maximum length), the dimensions (necessary dimensions) of the product storage 17 necessary for stacking the shipping lots to be carried in are calculated. At that time, the operation support apparatus 3 calculates the number of sections having a basic dimension that is equal to or larger than the dimension (m) of the plate-like product group as a necessary dimension.

  Then, the operation support apparatus 3 refers to the placement setting map file 43, extracts the product placement 17 having a size larger than the calculated required size, and verifies whether the shipping lot can be carried into each product placement 17 or not. That is, with reference to the location-specific status file 422, based on the extracted information on the total number of each product location 17, the margin of the number of peaks up to the maximum number of peak heights (see the location operation restriction file 44) ) Is equal to or greater than the number of shipment lots to be carried. Thereby, the process of step S2 is completed, and the operation support process proceeds to the process of step S3.

  The operation support apparatus 3 performs this verification on all the product sites 17 in the site setting map file 43 in descending order of the total number of product sites 17. This is because as the total number of product storages 17 increases, the number of plate-like products stacked in the product storage 17 when the shipment lot is loaded approaches the peak height upper limit, and the efficiency of the storage operation is improved.

  In the process of step S3, the operation support apparatus 3 determines the presence / absence of the product site 17 capable of receiving the shipping lot to be loaded based on the result of the receiving site search process of step S2. If there is no product storage area 17 having a peak height greater than the total number of shipment lots to be carried in, the operation support process proceeds to step S4. On the other hand, if there is a product storage area 17 having a peak height more than the total number of shipment lots to be carried in, the operation support apparatus 3 extracts the information of the corresponding product storage area 17, and the operation support process proceeds to step S11.

  In the process of step S4, the operation support apparatus 3 executes the first replacement place candidate search process, moves the shipping lot of any one product place 17 to another product place 17 (replacement), A search is made as to whether an empty product storage 17 can be secured. The operation support apparatus 3 refers to the location-specific status file 422 and verifies whether there is a product site 17 (replacement destination) that can move the shipping lot stacked in each product site 17. That is, the operation support apparatus 3 verifies the presence / absence of the product place 17 (replacement destination) in which the peak height margin number is equal to or greater than the total number of shipment lots to be moved. Thereby, the process of step S4 is completed and the operation support process proceeds to the process of step S5.

  The operation support device 3 performs this verification on all the product sites 17 in the site setting map file 43 in the order of increasing size of the product site 17 and in ascending order of the total number of plate products in the product site 17. This is because the larger the size of the product storage 17 is, the larger the size of the empty product storage 17 that can be obtained by moving the shipping lots stacked in the product storage 17, thereby improving the efficiency of verification. This is because the smaller the total number of plate products in the product storage area 17, the smaller the number of plate products to be moved (the handling amount).

  In the process of step S5, the operation support apparatus 3 determines whether or not an empty product place 17 can be secured by the replacement of one shipping lot based on the result of the first replacement place candidate search process in step S4 described above. Determine. If there is a product location 17 that has a replacement destination (target to be transferred), the operation support apparatus 3 extracts information on the corresponding product location 17, and the operation support processing proceeds to step S6. On the other hand, when there is no product place 17 that has a replacement destination (target of replacement), the operation support process proceeds to the process of step S12.

  In the process of step S6, the operation support apparatus 3 transfers the shipping lot to the empty product storage 17 that can be obtained by moving the shipping lot stacked in the product storage 17 having the replacement destination (target of replacement). Verify whether it is possible to carry in. That is, the operation support apparatus 3 refers to the placement setting map file 43 and verifies whether or not the size of the product placement 17 to be replaced is greater than the required size of the shipping lot to be carried. When the dimension of the empty product storage area 17 is smaller than the required size of the shipping lot to be carried in, the operation support apparatus 3 determines that the shipping lot cannot be carried into the corresponding product storage area 17 and the product storage area 17 to be replaced. And the information of the product location 17 of the replacement destination are extracted, and the operation support process proceeds to the process of step S7. On the other hand, when the dimension of the empty product storage area 17 is larger than the required dimension of the shipping lot, the operation support apparatus 3 determines that the shipping lot can be carried into the corresponding product storage area 17, and The information and the information of the product place 17 of the transfer destination are extracted, and the operation support process proceeds to the process of step S9.

  In the process of step S7, the operation support apparatus 3 executes the second replacement place candidate search process, and the product adjacent to the product place 17 determined to have a replacement destination (replacement target) in the process of step S5. Among the storage places 17, the product lot 17 of the product storage place 17 is moved to another product storage place 17 (replacement), and a product storage place 17 that can secure an empty product storage place 17 is searched. Similarly to step S4, the operation support apparatus 3 refers to the placement status file 422, and determines whether or not there is a product place 17 (replacement destination) that can move the shipping lot stacked in each product place 17. To verify. That is, the operation support apparatus 3 verifies the presence / absence of the product storage area 17 (replacement destination) in which the peak height margin number is equal to or greater than the total number of movement targets. Thereby, the process of step S7 is completed, and the operation support process proceeds to the process of step S8.

  In addition, the operation support apparatus 3 determines the product storage areas 17 adjacent to all the product storage areas 17 determined to be transferred in the process of step S5 in descending order of the dimensions of the product storage areas 17 and the plate products of the product storage areas 17. This verification is performed in ascending order of the total number. This is because the larger the size of the product storage 17 is, the larger the size of the empty product storage 17 that can be obtained by moving the shipping lots stacked in the product storage 17, thereby improving the efficiency of verification. This is because the smaller the total number of plate products in the product storage area 17, the smaller the number of plate products to be moved (the handling amount).

  In the process of step S8, the operation support apparatus 3 has an empty product place that can be obtained by moving the shipping lot stacked in the product place 17 that is the replacement destination (target to be replaced) in the process of step S7. It is verified whether or not the shipping lot can be carried into the product place 17 that is adjacent to the corresponding product place 17 and the product place 17 that is determined to be a replacement object in step S5 and can be emptied. That is, with reference to the placement setting map file 43, it is verified whether or not the dimensions of the two product placement target areas 17 are greater than the required dimensions of the shipping lot. When the total size of the two empty product storage areas 17 is smaller than the required size of the shipping lot, the operation support apparatus 3 determines that the shipping lot cannot be carried into the corresponding product storage area 17, and the operation support processing is a step. The process proceeds to S12. On the other hand, when the sum of the dimensions of the two empty product storage areas 17 is equal to or larger than the required dimensions of the shipping lot, the operation support apparatus 3 determines that the shipping lot can be carried into the corresponding product storage area 17, and the two sets of distributions are arranged. Information on the product storage 17 to be replaced and information on the product storage 17 to be transferred are extracted, and the operation support process proceeds to step S9.

  In the process of step S9, the operation support apparatus 3 performs the replacement place candidate extraction process, and the information of the product place 17 to be replaced and the information of the product place 17 of the replacement destination extracted by the above process. A combination (replacement pattern) is extracted as a replacement candidate (replacement place candidate). Note that when extracting the replacement place candidate, the operation support apparatus 3 refers to the search condition file 45 and applies the candidate extraction condition. That is, if the maximum value of the size of the shipping lot to be transferred is larger than the maximum size of the shipping lot of the transfer destination (see the location-specific status file 422), the operation support apparatus 3 can also change the replacement location candidate. Except from the case where there is no, it is removed from the replacement place candidate. Further, when the number of replacement site candidates exceeds the upper limit of candidate numbers, the operation support apparatus 3 determines the replacement site candidates up to the upper limit of candidate numbers in the order searched (verified) in the processes of step S4 and step S7. And Thereby, the process of step S9 is completed, and the operation support process proceeds to the process of step S10.

  In the process of step S10, the operation support apparatus 3 performs an evaluation process on the replacement place candidate extracted in the process of step S9, and calculates an evaluation value. In the present embodiment, the operation support apparatus 3 performs evaluation from the viewpoint of the handling amount (number of moving sheets) and the viewpoint of the loaded state (limitation of the dimensions of the upper and lower shipping lots). For example, from the viewpoint of the handling amount, the operation support apparatus 3 counts the total number of plate products moved in each replacement place candidate as an evaluation value. In addition, from the viewpoint of the loading state, the operation support apparatus 3 determines that the number of shipping lots to be transferred (to limit the loading state) when the size of the shipping lot to be transferred is larger than the size of the shipping lot to be transferred. Record the number of violating plate products) in the evaluation value. It can be said that the lower the evaluation value, the more suitable replacement place candidate. Thereby, the process of step S10 is completed, and the operation support process proceeds to the process of step S11.

  Here, a specific example of the evaluation process will be described with reference to FIG. When this evaluation process is applied to the two patterns of replacement site candidates shown in FIG. 2, the evaluation value of the handling amount is 15 (sheets) and the evaluation value of the loading state is 0 (sheets) for the replacement site candidate 1. Therefore, the total evaluation value is 15 (sheets). On the other hand, for the transfer place candidate 2, the evaluation value of the handling amount is 11 (sheets) and the evaluation value of the loaded state is 11 (sheets), so the total evaluation value is 22 (sheets). Therefore, it can be evaluated that the replacement place candidate 1 is more suitable.

  In the process of step S11, the operation support apparatus 3 performs an acceptance place determination process, determines an optimum replacement place candidate based on the result of the evaluation process in step S10, and sets an acceptance place of the shipped lot to be carried in. decide. Further, the operation support apparatus 3 changes the placement setting map file 43 based on the determined replacement place candidate. Thereby, the process of step S11 is completed, and the operation support process proceeds to the process of step S12.

  FIG. 13 shows a modification example of the placement setting map file 43 of FIG. FIG. 13 shows that, out of the five product locations 17 shown in FIG. 7, the two product locations 17 with location IDs = 6A and 8A are integrated, and the setting of the section is changed to the product location 17 with the location ID = 7A. Show.

  In the process of step S <b> 12, the operation support apparatus 3 performs a result output process, outputs the above result to the database 4, and records it as an operation instruction file 46. Further, when the receiving place cannot be secured in step S5 and step S8, an error display is output. Thereby, the process of step S12 is completed and a series of operation support processes are completed.

  In the operation instruction file 46 shown in FIG. 11, the replacement instruction can be found by setting a plurality of placement IDs and placement dates in association with the same product ID.

  As described above, according to the present embodiment, the product lot 17 with a change in section is obtained by bringing a plurality of shipping lots having different dimensions to one mountain based on the evaluation value indicating the handling amount and the loading state. Since it can be secured, it is possible to realize the operation of the product storage place 17 with the change of the section in consideration of the handling amount and the loading state.

  In the above-described embodiment, an example is shown in which two sets of replacements are performed in the processes of steps S7 to S8 to integrate two empty product storage areas 17 to secure a receiving storage area. The receiving place may be secured by integrating the three or more product places 17 by performing the above replacement.

  In the above embodiment, the height margin of the product storage 17 is applied as the evaluation value representing the handling amount, and the number of moving sheets is evaluated. In addition to this, the distance between the product place 17 of the movement source and the product place 17 of the movement destination may be applied and the evaluation may be performed in consideration of the handling work time.

  In addition, after the error display is output in the process of step S12, the constraint conditions of the placement operation constraint file 44 and the search condition file 45 may be changed. For example, along with the error display in step S12, a message requesting to select whether or not to change the constraint conditions for the operation of the product storage 17 and the search for replacement is displayed on the terminal 5, and the user's selection instruction is accepted. A step of changing these constraint conditions in accordance with the user operation may be added, and the configuration may be such that the process returns to step S2 after the constraint conditions are changed.

  As described above, the product storage operation support method and the operation support device according to the present invention change the product storage section necessary for storage of steel products that will arrive at the product storage in the future while considering the handling amount and the loading state. It is suitable for realizing the accompanying operation.

DESCRIPTION OF SYMBOLS 1 Manufacturing equipment 11 Rolling machine 13 Cutting machine 15 Inspection apparatus 17 Product place 2 Product place operation system 3 Operation support apparatus 4 Database 41 Product information file 42 Inventory status file 421 Product-specific situation file 422 Place-specific situation file 43 Placement setting map file 44 Depot operation restriction file 45 Search condition file 46 Operation instruction file 5 Terminal 6 Logistics equipment

Claims (6)

In operation support device products yard constructed by using a computer, the computer is provided in manufacturing facilities for steel products, until the steel products are shipped, the operation of the product yard that are stored are staked A product storage operation support method that supports
The data input means included in the computer includes data on product information including at least information on a shipping lot of the steel product arriving at the product storage from the storage means and information on the dimensions of the shipping lot, and the steel product in the product storage and data on the current stock situation, the data on the partition configuration information that defines the compartment of the product yard, and the data related to the constraint conditions of operation of the product yard, read the, and the data related to the constraints of the search of the product yard A data input process to be input;
The receiving yard search means provided in the computer predicts the inventory status when steel products are stacked for each shipping lot, and determines the dimensions of the shipping lot, the constraints on the operation of the product yard, and the search for the product yard. Based on the constraint conditions, when a shipping lot arrives at the product storage area, a receiving site search step for searching for a product site that can carry the shipping lot; and
When the replacement place search means included in the computer cannot secure a product place that can carry the shipping lot in the receiving place search step, the dimensions of the shipping lot, the constraint conditions of the operation of the product place, and the product place Based on the search constraints, the distribution pattern for integrating the steel products for each stacked shipping lot into the other stacked shipping lots, and the shipping lot can be carried in by the replacement Replacement place search process for searching for product place,
The evaluation means provided in the computer, for each of the replacement of the plurality of patterns searched in the replacement place search step, an evaluation step of calculating an evaluation value based on the handling amount and the loading state of the steel product,
The determining means provided in the computer determines an optimal replacement pattern and a product place secured by the replacement based on the evaluation value, and determines the partition setting information,
An operation support method characterized by including: Before Symbol receiving yard searching step, the receiving yard search means, when the constraint condition of operation of the product yard and constraints of the search of the product yard is changed, restrictions operational products yard after the change 2. The operation support method according to claim 1, further comprising: searching for a product place for carrying in a shipping lot that arrives at the product place based on a condition and a constraint for searching the product place. In the replacement place search step, when the replacement place search means cannot secure a product place where the shipping lot can be carried in, error information, operational constraint conditions of the product place, and search for the product place are performed. Display and output a notification of selection request of whether or not to change with constraint conditions,
Constraints of the search of the product yard and constraints of operation of the product yard is operational support method according to claim 2, changed to said isosamples accordance with the user's selection operation on the notification of the selected request .   The product storage area search constraint condition is an extraction condition for extracting an evaluation target in the evaluation process from the replacement pattern, and an upper limit number of evaluation target extractions in the evaluation process, The operation support method according to any one of claims 1 to 3.   The restriction condition for the operation of the product storage area is an overall size of the product storage area defined in the section setting information and an upper limit number of the steel products stacked in the product storage area. The operation support method of any one of -4. In operation support device products yard constructed by using a computer, the computer is provided in manufacturing facilities for steel products, until the steel products are shipped, the operation of the product yard that are stored are staked A product storage operation support device that supports
Data relating to product information including at least information relating to a shipping lot of the steel product arriving at the product yard and dimensions of the shipping lot; data relating to a current inventory status of the steel product in the product yard; Storage means for storing data relating to the section setting information defining the section, data relating to the operation condition of the product storage, and data relating to the search condition of the product storage,
From the storage means, and the data relating to the product information, and the data for the previous Kizai warehouse situation, and the data for the previous SL-ku-image setting information, and data related to the constraint conditions of operation of the product yard, the constraint of the search of the product yard a data input means for inputting reading data on a condition, and
Predicting the stock status when steel products are stacked for each shipment lot, and based on the dimensions of the shipment lot, the constraint conditions of the operation of the product area, and the constraint conditions of the search for the product area, Receiving place search means for searching for a product place where the shipping lot can be loaded when the shipping lot arrives at
When the receiving place search means cannot secure a product place where the shipping lot can be carried in, based on the dimensions of the shipping lot, the operating conditions of the product place, and the searching conditions of the product place, Replacement place search means for searching for a replacement pattern for integrating the steel products of each stacked shipping lot into other stacked shipping lots and a product place where the shipping lot can be carried in by the replacement. When,
Evaluation means for calculating an evaluation value based on the handling amount and the loading state of the steel product for each of the replacement of the plurality of patterns searched by the replacement place search means,
A determination unit for determining an optimal replacement pattern and a product storage area secured by the replacement based on the evaluation value, and changing the section setting information;
An operation support apparatus comprising:

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