JP6065866B2 - Transportation loading plan creation method and transportation loading plan creation device - Google Patents

Description

  The present invention relates to a transportation loading plan creation method and a transportation loading plan creation device for creating a transportation loading plan for a shipment object product for a loading operation in which a shipment object product is transported and loaded on a ship.

  Steel products manufactured at steelworks are first stored in a product warehouse. Then, the steel products that have arrived at the shipping timing are transported from the product warehouse to the quay and loaded into the ship's hold (hereinafter also referred to as ship load, ship load, or ship load).

  As a technique regarding the method of loading steel products onboard, for example, there is a technique disclosed in Patent Document 1. This technology is intended for steel coil products such as thin plates, wire rods, etc., and specifies the loading method for each coil in the hold in consideration of the ship width and coil dimensions. An improvement is said to be obtained.

Japanese Patent No. 2632851

However, the technique described in Patent Document 1 has the following problems.
(1) Lot creation for cargo loading in the hold (also simply referred to as cargo loading) There is no suggestion on how to find a combination of products that will improve work efficiency for the group of products that can be shipped, and it is left to manpower. Yes.
(2) Coordination between on-site transportation efficiency and cargo loading in the warehouse No matter how ideal the cargo loading in the cargo warehouse is ideally carried out, if the transportation of products corresponding to the upstream process becomes a bottleneck, the efficiency of the overall logistics will be reduced. It will be disturbed.
(3) Differences between plate-like products and coils Plate-like products require complicated handling work different from cylindrical coils in all onboard loading, pallet loading, and warehouse storage. It is difficult to apply as it is.

  The present invention has been made in view of these problems of the prior art, and an object of the present invention is to devise an efficient logistics work plan when loading plate products stored in a warehouse onto a ship. Another object of the present invention is to provide a transportation loading plan creation method and a transportation loading plan creation device.

  The above problems can be solved by the following invention.

[1] A transportation loading plan creation method for creating a transportation loading plan of the shipment object product for a loading operation of carrying the shipment object product and loading it on a ship,
A shipping data entry step to enter the shipping plan, product information, and warehouse information for the product to be shipped;
A shipping data aggregation step that aggregates product groups having the same attribute of the input information in the shipping data input step into a loaded lot;
Based on the basic rules for loading, loading height, and the center of gravity restriction of the ship and the entire product group after loading, a plan for loading the loading lots into the hold order in the order of delivery date within the holdable size range of the hold is created. The cargo loading plan steps to
Based on the cargo loading plan created in the cargo loading plan step, to transport products to be shipped on pallets under conditions that satisfy the pallet placement restrictions on the quay and work restrictions when loading products on the pallets A transfer pallet load plan step for creating a transfer pallet load plan for
A transportation loading plan creation method, comprising: a logistics cost evaluation step for calculating and evaluating a logistics cost for the created cargo loading plan and transport pallet loading plan.

[2] In the transportation loading plan creation method according to [1] above,
A transportation loading plan creation method comprising: a plan condition correcting step of correcting a plan condition when a value of the calculated distribution cost exceeds a target value of the distribution cost in the distribution cost evaluation step.

[3] In the transportation loading plan creation method according to [1] or [2] above,
In the transport pallet loading planning step,
For mixed loading of multiple warehouse products on the same pallet, a mixed loading availability condition based on the distance between warehouses is set, and if the mixed loading availability condition is within the set range, products with different loading orders are placed on the same pallet A transportation loading plan creation method characterized by allowing placement on the top.

[4] In the transportation loading plan creation method according to any one of [1] to [3] above,
In the transport pallet loading planning step,
Calculate the work load on the product handling equipment during the loading work time as the sum of new product acceptance work, delivery work for the product subject to shipment planning, and replacement work for products not covered by the delivery plan that accompany the delivery work. A method for creating a transportation loading plan, comprising the step of comparing the workload and the holding time for comparing the workload and the holding time of the product carrying device.

[5] In the transportation loading plan creation method according to [4] above,
In the transport pallet loading planning step,
In the comparison step of the workload and the holding time, if the workload exceeds the holding time, a new product receiving place changing step for leveling the load by changing the receiving place in the new product receiving work, and a shipping plan Carrying loading plan characterized by improving handling so that product transportation work can be executed within a predetermined time by changing the handling unit that can transfer the target products collectively and reducing the load. How to make.

[6] A loading and loading plan creation device for creating a loading and loading plan of the shipment object product for a loading operation in which the shipment object product is conveyed and loaded on a ship,
A shipping data input means for entering the shipping plan, product information, and warehouse information for the product to be shipped;
Shipping data aggregating means for aggregating product groups having the same input information attributes in the shipping data input means,
Based on the basic rules for loading, loading height, and the center of gravity restriction of the ship and the entire product group after loading, a plan for loading the loading lots into the hold order in the order of delivery date within the holdable size range of the hold is created. A ship loading plan means,
Based on the cargo loading plan created by the cargo loading planning means, the product to be shipped on the pallet is transported under conditions satisfying the pallet placement restrictions on the quay and the work restrictions when loading products on the pallet. A transportation pallet loading plan for creating a transportation pallet loading plan for
A transportation loading plan creation device comprising logistics cost evaluation means for calculating and evaluating a logistics cost for a created cargo loading plan and a transport pallet loading plan.

[7] In the transport loading plan creation device according to [6] above,
A transportation loading plan creation device comprising: plan condition correcting means for correcting a plan condition when the value of the calculated distribution cost exceeds a target value of the distribution cost by the distribution cost evaluation means.

[8] In the transport loading plan creation device according to [6] or [7] above,
In the transport pallet loading plan means,
For mixed loading of multiple warehouse products on the same pallet, a mixed loading availability condition based on the distance between warehouses is set, and if the mixed loading availability condition is within the set range, products with different loading orders are placed on the same pallet A transportation loading plan creation device characterized by allowing it to be placed on top.

[9] In the transport loading plan creation device according to any one of [6] to [8],
In the transport pallet loading plan means,
Calculate the work load on the product handling equipment during the loading work time as the sum of new product acceptance work, delivery work for the product subject to shipment planning, and replacement work for products not covered by the delivery plan that accompany the delivery work. A transportation load plan creation device comprising means for comparing the work load and the time spent on the product carrying device for comparing the work load and the work time.

[10] In the transport loading plan creation device according to [9] above,
In the transport pallet loading plan means,
A means for comparing the work load and the holding time; if the work load exceeds the holding time, a new product receiving place changing means for leveling the load by changing the receiving place in the new product receiving work; and a shipping plan Carrying loading plan characterized by improving handling so that product carrying work can be executed within a predetermined time by handling unit changing means that reduces the load by changing the handling unit that can transfer the target products as a whole Creation device.

  Since the transportation loading plan creation method according to the present invention has a shipping data aggregation step, a cargo loading loading planning step, a transport pallet loading planning step, and a distribution cost evaluation step, the plate-like product stored in the warehouse is transferred to the ship. An efficient logistics work plan for shipping can now be made.

It is a figure showing the outline of the equipment to which the present invention is applied. It is a figure which shows the apparatus structural example which concerns on this invention. It is a figure which shows the example of the whole process sequence which concerns on this invention. It is a figure which shows the storage condition in the warehouse of the product shown in Table 3. FIG. It is a figure which shows the loading condition of the thick steel plate in a hold. It is a figure which shows the loading basic rule of the thick steel plate in a ship's hold. It is a figure which shows the processing flow example 1 of a ship stowage plan step. It is a figure which shows the example of a loading condition of a conveyance pallet and a thick steel plate. It is a figure which shows the example of a division | segmentation from a loading lot to a crane hanging lot. It is a figure which shows the processing flow example 2 of a ship stowage plan step. It is a figure which shows the example of the product conveyance in a warehouse. It is a figure which shows the example of a processing flow of a shipment data aggregation process. It is a figure which shows the example of the difference of the crane operation | work by the change of crane hanging lot aggregation conditions.

[Embodiment 1]
An explanation will be given by taking an example of a logistics work plan in which a thick steel plate, which is a plate steel product, is transported from a product warehouse to a ship and loaded on a ship. FIG. 1 is a diagram showing an outline of equipment to which the present invention is applied. The main target equipment consists of a product warehouse, a product transporter, a quay crane, and a ship.
Steel plates of steel products are temporarily stored in a product warehouse after being manufactured at an ironworks. Then, the steel plates for which shipping orders have been issued are loaded from the product warehouse onto the pallet of the product transporter and transported to the quay. Furthermore, the steel plate transported to the quay is loaded from the quay place into the ship's hold using a quay crane.

  FIG. 2 is a diagram showing a configuration example of an apparatus according to the present invention. In the figure, 1 represents a transportation / loading instruction computer, 2 represents a database, 3 represents a terminal, and 4 represents a physical distribution device.

The transportation / loading instruction computer 1 uses various data in the database 2 to plan handling procedures for thick steel plates, record them in the database 2 and display them on the terminal 3, as well as a product carrier for handling. Send instructions to logistics equipment 4 such as quay cranes. Then, in the physical distribution device 4 to which the work instruction is sent, a series of physical distribution work is performed based on the instruction.
FIG. 3 is a diagram showing an example of the entire processing procedure according to the present invention. Hereinafter, description will be made for each step of FIG. 3 with reference to the drawings or tables.
First, in the Step 100 shipping data input step, the transportation / loading instruction computer 1 receives a shipping plan, product information, and warehouse information from the database 2.

  An example of a shipping plan is shown in Table 1 below. The plan ID, shipping date, product serial number, and product ID are recorded. An example of product information is shown in Table 2 below. Product ID, dimensions, weight, destination ID, delivery date, warehouse ID, storage ID, and product order are recorded. Furthermore, an example of warehouse information is shown in Table 3 below. Warehouse ID, storage ID and number of products are recorded. FIG. 4 is a diagram showing the storage status of the products shown in Table 3 in the warehouse.

  In Table 2, the warehouse information is included in the product information, but is not limited to this example. Since it is only necessary to be able to refer to which product is located in which warehouse, for example, both product information and warehouse information may share a key ID.

  Next, in Step 101 shipment data aggregation step, product groups having the same attributes such as destination ID, delivery date, and warehouse location ID are aggregated and handled as a loading lot.

  In the Step 102 cargo loading plan step, first, the transportation / loading instruction computer 1 receives work restrictions and cargo information from the database 2. An example of work constraints is shown in Table 4 below. Work constraint conditions corresponding to the target work / target item are recorded. An example of the hold information is shown in Table 5 below. The holdable cargo dimensions corresponding to the ship name are recorded.

The work constraint conditions in Table 4 will be described.
As a loading prohibition restriction for a cargo hold, there is a condition that “the range of the tip side XXm is prohibited” and “the range of the side ΔΔm is prohibited”. This is a condition that, for the convenience of inboard work, products should not be placed in the range of OOm from the tip side of the hold and in the range of △ Δm from the end of the side. When creating a plan, it is necessary to make a loading plan by replacing it with the fact that the hold is narrow in the longitudinal direction by OOm + △△ m.

Next, the hold information in Table 5 will be described.
The ship size of the ship name AA Maru is recorded as a rectangular parallelepiped space having a width of 16000 mm, a length of 40000 mm, and a height of 6000 mm. When creating a plan, a stow plan is created with this hold dimension as a constraint. Further, as described in the description of Table 4, the hold size is considered together with the work constraint conditions.

  FIG. 5 is a diagram illustrating a loading situation of thick steel plates in the hold. When loading plate products, considering the workability at the time of unloading, product groups with the same destination ID and delivery date will be packed together in one place. The aforementioned Step 101 shipment data aggregation step shows an example based on this viewpoint, and aggregates product groups having the same destination ID, delivery date, and warehouse location ID.

  In the cargo loading plan step, the loading lots are sequentially loaded into the ship. First, the loading lots are sorted in the reverse order of the unloading order. This is because the cargo stowage is FILO (first-in last-out). The sort key is a delivery date. Sorting is performed in descending order of delivery so that the earlier delivery date is unloaded first, and the later delivery date is stacked on the bottom side.

  In addition, in the cargo loading plan step, the trim (center of gravity) of the ship after loading is taken into account, so the weight at the tip (bow: subscript B) side and the stern (stern: subscript S) side is as equal as possible. It is necessary to carry out a loading plan that is well balanced.

  FIG. 6 is a diagram showing basic rules for loading thick steel plates in the hold. Divide the hold into two equal parts in the width and length direction, and equal to 4 sections (BL: left half on the heel side, BR: right half on the heel side, SL: left half on the shore side, SR: right half on the shore side) The order of loading from (1) to (4) is assigned in consideration of splitting and trimming. What is shown here is a standard rule, and may be changed depending on the type of ship, the type of cargo handling crane, the transport specification specified by the customer, and the like.

  FIG. 7 is a diagram illustrating a processing flow example 1 of the cargo loading plan step. This is a procedure for arranging the loading lots sorted in descending order of delivery based on the basic loading rules described above in order from the top.

  First, in Step 01, the height / weight integrated value and the gravity center position are initialized. If there is a loading lot remaining at Step 02, an arrangement section is calculated according to the basic loading rules at Step 03.

  Then, in Step 04, the integrated value of the plate thickness (= loading height), the loading weight, and the center of gravity of the entire ship are provisionally calculated for the arrangement section. It is determined whether or not the result of the provisional calculation violates the height / centroid constraint condition (Step 05).

  If there is no violation here, the arrangement is confirmed and the numerical values are updated (Step 09), and the process returns to Step 02 and the process moves to the next product lot. However, if there is a condition violation, if all four sections are not completed, the process moves to the next candidate (Step 07), returns to Step 04, performs the same processing, and confirms whether or not the arrangement is possible. If none of the four sections meet the height / center of gravity constraint, select the section with the smallest constraint violation amount from the four sections (Step 08), confirm the placement, and update the values (Step 09). .

  The above processing is repeated until the last loading lot, a series of loading orders is assigned to all products belonging to the loading lot, and the cargo loading planning step is completed.

  Now that the plan for loading the cargo has been completed, the processing returns to the example of the entire processing procedure in FIG. 3 and the processing moves to the next Step 103 conveyance pallet loading planning step. Here, a transport plan for thick steel plates to the ship is created so that the previously determined cargo stowage plan can be realized. First, work constraints and pallet placement constraints are received from the database 2.

  An example of the palette constraint is shown in Table 6. Table 6 describes the restrictions on how to load products on the transport pallet. The maximum load weight and the maximum number of divisions in the longitudinal direction (for products with a short length in the longitudinal direction) How many can be placed at the same time), the upper limit of the stack height is recorded.

  FIG. 8 is a diagram illustrating an example of a loading situation of the conveyance pallet and the thick steel plate. As shown in Table 6, the pallet of this example can carry steel plates up to a height of 2000 mm and a maximum loading weight of 100 tons in a maximum of two divisions in the longitudinal direction. Carrying up to the maximum equipment specification leads to a reduction in logistics costs, but this often requires mixed loading from multiple warehouses on the same pallet.

  Table 7 shows the distance index between warehouses. The distance between the five warehouses is a dimensionless integer, and the greater the distance, the greater the value. In addition, the pallet mixed loading conditions are shown in Table 8, and in this example, the upper limit of the distance that can be mixed on the same pallet is 3. In the example of Table 7, it is understood that A01 can be mixedly loaded up to B02, and A01 and C01 whose distance is 4 cannot be mixedly loaded.

  Step 103 In the transfer pallet loading planning step, based on a series of loading order assigned to the loading lot, it is sequentially determined on which pallet each product is loaded so as to satisfy the constraint conditions obtained from Table 7 and Table 8. . Each product is assigned a pallet ID and pallet loading position.

  As another method for determining the pallet loading position, for example, when a plan close to the upper limit of the pallet loading amount cannot be created due to pallet constraints, change to a plan that allows replacement of the loading order and satisfies the pallet constraints. There is a method of increasing the loading capacity by doing.

  The loading efficiency of the transfer pallet is directly linked to the distribution cost. An example of the planning conditions is shown in Table 9. Here, the target value of the distribution cost is set.

  In order to evaluate the transportation / loading plan obtained as a result of the above-described processing, a logistics cost evaluation step for calculating and evaluating the logistics cost is performed (Step 104). If the calculated logistics cost value exceeds the target value, modify the Step105 plan conditions, return to the Step102 hold loading plan step or Step103 transport pallet loading plan step, and recalculate each plan step depending on the correction. To do.

  As the plan condition correction, for example, when the above-mentioned index [distance index that can be mixed and loaded on the same pallet] is changed, the process returns to the Step 103 transport pallet loading planning step to improve the distribution cost. This is because a mixed loading availability condition based on the distance between warehouses is set for mixed loading of multiple warehouse products on the same pallet, and products with different loading orders are within the same pallet within the set mixed loading availability condition range. It is allowed to be placed on top.

  When an appropriate result that does not require cost improvement is obtained, the planning step is terminated, and a Step 106 result output step is performed. In the result output step, a work instruction as a plan result is output.

  An example of work instructions is shown in Table 10. The transportation / loading instruction computer 1 records the plan ID, loading lot ID, loading order, cargo loading position, product ID, pallet ID, and pallet loading position in the database 2 and displays them on the terminal 3, An instruction is sent to the logistics equipment 4 such as a product transport vehicle and a quay crane for handling. Then, in the physical distribution device 4 to which the work instruction is sent, a series of physical distribution work is performed based on the instruction.

  Through the above processing, a plan that can reduce logistics costs can be obtained.

[Embodiment 2]
The above-described first embodiment is certainly effective for reducing the processing load by collecting the product groups having the same destination ID, delivery date, and warehouse storage ID as the loading lot for the product group to be loaded in the cargo hold. . However, for example, if the number of products in the loading lot is large, the total height is large and the weight is large, and it is difficult to satisfy the height / center of gravity constraint when trying to place the product in the hold.

  In addition, although the method for planning transportation of plate-like products and loading in a warehouse according to the present invention ultimately leads to work instructions for logistics equipment, the handling unit is a crane from one product to several products. It is a unit handled in. Since this crane unit does not coincide with the loading lot, there is a problem that it is difficult to accurately estimate the work amount.

  The second embodiment is for solving the above-described problem. Instead of the loading lot of the first embodiment, the product group is aggregated in the handling unit of the crane and the planning step is performed. That is, in the shipping data aggregation step of Step 101 in FIG.

  FIG. 9 is a diagram illustrating an example of division from a loading lot into a crane hanging lot. In this example, because the destination ID, delivery date, and storage location ID are the same, 14 products belonging to one loading lot are suspended by 3 pieces of 5 pieces, 5 pieces, and 4 pieces, respectively. It is divided into lots.

  In the second embodiment, since the units to be arranged are subdivided as compared with the first embodiment, the number of lots to be handled is increased, but the frequency of violation of the height / center of gravity constraint is greatly reduced. There is an advantage that the amount does not increase so much.

  FIG. 10 is a diagram illustrating a processing flow example 2 of the cargo loading plan step. Compared with the processing flow example 1 of the cargo loading plan step in FIG. 7, Step 20 suspension lot integration (loading lot ID numbering) is added. After the placement is confirmed, if the adjacent suspension lots have the same destination ID, delivery date, and warehouse location ID, the number of loading lot IDs that integrate multiple suspension lots is assigned to improve the overall work prospect. If integration is not possible, the loading lot may be stored with the same ID as the blank or hanging lot.

  Table 11 shows the work instructions. Compared with Table 10, only the hanging lot ID, which is a unit of handling, is added. Note that the processing in this embodiment is performed by the apparatus shown in FIG. 2 as in the first embodiment.

[Embodiment 3]
In the above-described embodiment, the work amount can be accurately estimated by making a plan based on a crane hanging lot (crane handling unit). Here, the amount of work refers to the amount of work carried by a crane arranged on a quay and loading products onto a ship, that is, a quay crane. In order to maximize the efficiency of the loading work, the transportation work amount of the quay crane should be minimized, that is, the number of crane suspension lots should be minimized.

  However, the plate-like products stored in the respective storage areas of the product warehouse are stacked on the plate-like products already stacked at the time of receipt, and are not stacked in order in consideration of the shipping plan order. Therefore, when loading on the transport pallet based on the shipping plan, only the products that are subject to the shipping plan are extracted from the stacked state, and the products that are not subject to the shipping plan loaded in the same place are temporarily placed in another place. Necessary work to return and return after completion of shipping work, that is, replacement work is required.

A transport crane that performs this transport work in a product warehouse, that is, a warehouse crane, needs to perform the following three types of work.
1) Transportation work for products subject to shipment planning 2) Replacement work for products not subject to shipment planning that accompany the transportation work for products targeted for shipment planning 3) Products newly received in the warehouse at the same time zone FIG. 11 is a diagram illustrating an example of product transportation in a warehouse. (A) represents a shipping operation and (b) represents a replacement operation when a shipment plan target product and a non-shipment plan target product coexist in the same place. In the drawing, products represented by white rectangles indicate products not subject to shipment planning.

  FIG. 12 is a diagram illustrating a processing flow example of the shipping data aggregation processing. The processing here is performed sequentially from the earliest time for each work time zone, and the time zone can be separated by specifying a predetermined length, for example, for 1 hour or 2 hours. However, it should be taken into consideration that the acceptance information is scheduled and varies due to a change in the plan of the upstream process, and the accuracy cannot be increased even if the time width is too small.

  First, in Step 21, a received product input process is performed for receiving received product information. Table 12 shows an example of received product information. Table 12 shows a state in which the warehouse, storage location, and product order are entered as schedule information after the next receiving warehouse and storage location determination. The difference from the above-mentioned Table 2 is that the scheduled date and time of acceptance and the order are newly added, and the warehouse / yard / product order is initially blank.

  Next, in Step 22, a receiving warehouse and storage location determination process is performed in which the warehouse, storage location, and product order are sequentially determined for each received product. Table 13 shows receiving warehouse / placement determination conditions. With reference to the warehouse / placement inventory status and warehouse dimensions (width / length) at the time of acceptance, the warehouse / placement / product order of products to be received will be decided while referring to the determination conditions in order of priority.

  When the warehouse / placement / stacking order is determined, the work time of the warehouse crane that carries the warehouse is added (Step 23). Table 14 shows the crane work time. Add one cycle time for each transfer operation. And it repeats the process which returns to Step21 until it confirms the process of all the received products in Step24.

  Next, in Step 25, the shipping product information is input and the crane hanging lots are collected. Table 15 shows the crane suspension lot aggregation conditions. In the initial operation, lots are aggregated without any restrictions, and the aim is to maximize the shipping work efficiency by minimizing the number of lots.

  When the crane hanging lots can be collected, the work time of the warehouse crane that carries the warehouse in the same procedure as the receiving work is added (Step 26). Iterates back to Step 25 until it confirms the processing of all shipped products in Step 27.

  When the processing of all shipped products is completed, the crane work time evaluation of all warehouses is performed for each time zone (Step 28). For example, when the time span is 2 hours, the working time of each crane is 120 minutes at the maximum. For example, multiplying by an efficiency of 0.8 gives 96 minutes.

  Next, in Step 29, the working time and the working time are compared. If all warehouse cranes have working capacity, the process is completed without any problem. However, if there is a warehouse where the working time exceeds the time, first, in Step 30, improvement is attempted by transferring the received product.

  That is, for all products scheduled to be received in the warehouse with excess work hours, an attempt is made for each product to transfer to a warehouse with sufficient work time. After excluding all warehouses that have exceeded the working hours, the decision is made again based on the receiving warehouse / location determination conditions shown in Table 13.

  Next, in Step 31, the working time and the holding time are compared again. If the work time is less than the work time and the excess of work time is resolved, the process ends. On the contrary, if the excess is not resolved, the process of returning to Step 30 is repeated until there is no changeable product in the target warehouse (Step 32).

  If the excess is not resolved even after re-decision of all received products to the target warehouse, next, try to reduce the transport load by changing the aggregated conditions of the crane suspension lots of the shipped products.

  FIG. 13 is a diagram illustrating an example of a difference in crane work by changing the crane hanging lot aggregation condition. (A) is a case where there is no restriction of the initial condition, and (b) is a case where there is a restriction. Depending on whether or not non-adjacent products are allowed to be collected in the same lot, the number of times the warehouse crane is transported changes. In this example, 13 products are arranged in the storage area, 8 of which are shipment targets (white). The number is the hanging lot number.

  In the case where there is no restriction of (a), a total of 11 conveyances occur including replacement of non-target products. This is because adjacent shipment products cannot be transported by one suspension. On the other hand, in the case of the restriction (b), the total is 8 times, and the number of times of conveyance can be reduced by about 30%.

  In Step 33, as described above, the crane work time recalculation and addition are performed after severely changing the crane suspension lot aggregation conditions for each storage space of the work time excess warehouse.

  In Step 34, the working time and the holding time are compared again. If the work time is less than the work time and the excess of work time is resolved, the process ends. On the other hand, if the excess is not resolved, the process of returning to Step 33 is repeated until there is no changeable product in the target warehouse (Step 35).

  However, if the excess is not resolved even if the restrictions are changed severely for all the parking places, further shipping data aggregation processing is impossible, a crane work load error is output (Step 36), and the processing is terminated. Then, the worker who has received the crane work load error output considers changing the receiving work time zone or changing the shipping timing.

  By performing the processing as described above, a predetermined effect can be obtained. Further, the processing in the present embodiment is performed by the apparatus shown in FIG.

  In addition, it is good to make each step of the processing flow demonstrated in Embodiments 1-3 program, and to make it run with a computer as a plan transportation of a plate-shaped product and a cargo loading plan program.

1 Transportation / loading instruction computer 2 Database 3 Terminal 4 Logistics equipment

Claims (4)

A transportation loading plan creation method for creating a transportation loading plan of the shipment object product for a loading operation of transporting the shipment object product and loading it on a ship,
Computer
A shipping data entry step to enter the shipping plan, product information, and warehouse information for the product to be shipped;
A shipping data aggregation step that aggregates product groups having the same attribute of the input information in the shipping data input step into a loaded lot;
Based on the basic rules and height of loading, and the height / center of gravity restriction that is the restriction on the center of gravity of the ship and the product group after loading, the loading lots are ordered in descending order of delivery within the holdable size range of the hold. A cargo loading plan step for creating a plan for loading in the cargo hold;
Based on the cargo loading plan created in the cargo loading plan step, to transport products to be shipped on pallets under conditions that satisfy the pallet placement restrictions on the quay and work restrictions when loading products on the pallets A transfer pallet load plan step for creating a transfer pallet load plan for
A logistics cost evaluation step for calculating and evaluating the logistics cost for the created cargo loading plan and transport pallet loading plan ;
In該物flow cost evaluation step, if the value of the calculated distribution cost exceeds the target value of the distribution costs, and a planning condition modifying step of modifying the planned conditions,
When the plan condition is modified in the plan condition modification step and the distance index that can be mixed and loaded based on the distance between warehouses is changed on the same pallet, loading is performed within the range of the distance index that can be mixed and loaded. Allowing products that are out of order to be placed on the same pallet, returning to the transport pallet loading planning step, re-planning,
In addition, when the plan condition is corrected in the plan condition correction step and the suspension lot is a handling unit of a crane instead of the loading lot, the product group is aggregated in the suspension lot and the cargo load is Go back to the planning step, re-plan,
Furthermore, the shipping product planning method, wherein the product to be shipped is a thick steel plate . In the transportation loading plan creation method according to claim 1 ,
In the transport pallet loading planning step,
Calculate the work load on the product handling equipment during the loading work time as the sum of new product acceptance work, delivery work for the product subject to shipment planning, and replacement work for products not covered by the delivery plan that accompany the delivery work. , is compared with the time limit of the working load and product handling equipment, have a comparison step of the work load and the time limit,
In the comparison step of the workload and the time limit, when the workload exceeds the time limit is a new product acceptance where changing step of leveling the load by changing the acceptance yard in new product acceptance operations, shipment schedule Carrying loading plan characterized by improving handling so that product transportation work can be executed within a predetermined time by changing the handling unit that can transfer the target products collectively and reducing the load. How to make. A transportation loading plan creation device for creating a transportation loading plan of the shipping object product for a loading operation of transporting the shipment object product and loading it on a ship,
A shipping data input means for entering the shipping plan, product information, and warehouse information for the product to be shipped;
Shipping data aggregating means for aggregating product groups having the same input information attributes in the shipping data input means,
Based on the basic rules and height of loading, and the height / center of gravity restriction that is the restriction on the center of gravity of the ship and the product group after loading, the loading lots are ordered in descending order of delivery within the holdable size range of the hold. A cargo loading plan means for creating a plan to be loaded into the cargo hold;
Based on the cargo loading plan created by the cargo loading planning means, the product to be shipped on the pallet is transported under conditions satisfying the pallet placement restrictions on the quay and the work restrictions when loading products on the pallet. A transportation pallet loading plan for creating a transportation pallet loading plan for
Distribution cost evaluation means for calculating and evaluating distribution costs for the created cargo loading plan and transport pallet loading plan,
In該物flow cost evaluation unit, if the value of the calculated distribution cost exceeds the target value of the distribution costs, and a planning condition modifying means for modifying the planned conditions,
When the plan condition is corrected by the plan condition correction means and the distance index that can be mixed and loaded based on the distance between warehouses is changed on the same pallet, loading is performed within the range of the distance index that can be mixed and loaded. Allowing products that are out of order to be placed on the same pallet, returning to the transport pallet loading planning step, re-planning,
In addition, when the plan condition is corrected by the plan condition correction means to make a hanging lot which is a handling unit of a crane instead of the loading lot, the product group is aggregated in the hanging lot, and Go back to the planning means, re-plan,
Further, the shipping product planning device is characterized in that the product to be shipped is a thick steel plate . In the transportation loading plan creation device according to claim 3 ,
In the transport pallet loading plan means,
Calculate the work load on the product handling equipment during the loading work time as the sum of new product acceptance work, delivery work for the product subject to shipment planning, and replacement work for products not covered by the delivery plan that accompany the delivery work. , is compared with the time limit of the working load and product handling equipment, we have a comparison means of the work load and the time limit,
In the comparison step of the workload and the time limit, when the workload exceeds the time limit is a new product receiving location changing means for leveling the load by changing the acceptance yard in new product acceptance operations, shipment schedule Carrying loading plan characterized by improving handling so that product carrying work can be executed within a predetermined time by handling unit changing means that reduces the load by changing the handling unit that can transfer the target products as a whole Creation device.