JPH08272402A - Inference device for material transportation and dispatch planning - Google Patents

Abstract

PURPOSE: To efficiently generate a berth unloading plan and to stably supply a raw material by deciding a transportation timing by using an appropriate shipping selection knowledge base and a loading combination decision knowledge base, etc., and planning a long time raw material transportation assignment of ships plane. CONSTITUTION: An assignment of ships planning device 10 reads in every bit of information, and a transportation target decision device 12 decides a brand to decide a transportation schedule, and an appropriate shipping selection device 13 allocates transportation appropriate shipping for a transportation target based on the appropriate selection knowledge base 14. Also, a transportation scheduling decision device 15 decides a loading combination brand other than a transportation target brand based on the loading combination decision knowledge base 16. An arrival of ships arranging device 20 receives every bit of information, and performs the change of a loading brand and quantity at every ship, the transfer of a cargo scheduled to be loaded on another factory, the change of loading on another ship, and addition of a call at another loading port in the midst of navigation, etc., via an arrival schedule display/input screen 22, a navigation change designation screen 26 as making access a data bas 30 when a problem of fluctuation of arrival schedule at a factory or that of prosperous/ unprosperous condition of supply and demand, etc., occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship allocation planning function for preparing a ship allocation plan for the transportation of steel raw materials such as iron ore and coal from abroad, and Yamamoto, which is the loading land for transportation. The present invention relates to an inference device for a raw material transportation dispatch plan having a function of adjusting entry / exit when there is a change in the progress of transportation work such as the progress of work or the movement of ships.

[0002]

2. Description of the Related Art In a computer system for a planning problem that has been developed in the past, there is a method (a mathematical programming method) that formulates constraint conditions for planning and evaluation criteria related to a planning result and solves them mathematically and systematically. , There is a method (expert system method) that describes the constraint conditions for planning and the know-how of the person in charge of planning as a program.

This expert system system aims to hold constraint conditions and planning procedures in a form that is easy to change. For example, the optimum control apparatus for a raw material berth disclosed in Japanese Patent Laid-Open No. 4-205204 discloses a knowledge object including data such as a schedule for entering a raw material vessel, a schedule for repairing unloading equipment, a yard plan, and unloading efficiency, and a skilled operator. By providing a knowledge base including operational knowledge of
It aims at automating the cargo handling work plan by determining the berthing berth of the raw material ship and the unloading work time, etc., which minimizes the demurrage cost, and aims to improve the efficiency of the unloading work in raw material transportation.

[0004]

However, since it is necessary to prepare an unloading work plan based on the entry plan of the raw material vessel, a highly reliable entry plan is required to actually realize an efficient unloading plan. Mandatory.

In the raw material transportation plan from overseas, the initial plan may be affected by the progress of loading and unloading work at Yamamoto, the fluctuation of ship movements due to the weather, etc., and the change of the required transportation target due to the change of the production plan. There are problems that the plan needs to be revised or changed, and the actual work situation and the actual results are often different from each other, making it unusable.

[0006] That is, even if a transportation plan is once drafted, there are few situations in which the ship entry plan fluctuates due to disturbance factors, which necessitates a change in the unloading work plan, or the plan itself has no meaning. Absent.

Conventionally, as a measure against such a variation,
The dispatcher checked the cargo information and ship movements from time to time, and based on the results, he consulted with the yard manager of the factory and decided to change the loading brand and quantity and transfer other ships. After all,
The reality is that the stock of raw materials in the factory, the usage plan, and the movements of the transport ship were separately grasped, and in the event of an inconvenience, it ended up on an ad hoc basis.

Further, as a result, there has been a problem that a long-term outlook of the stock change of raw materials is not established and it is difficult to supply a stable supply and demand of the raw materials.

The present invention has been made to solve the above-mentioned conventional problems, and provides a reasoning apparatus for a raw material transportation / shipping plan capable of realizing an efficient berth unloading plan and a stable raw material supply. The purpose is to

[0010]

[Means for Solving the Problems] The present invention provides annual raw material purchase plan information, raw material ship annual operation plan information in a manufacturing plant,
Data loading means for grasping annual usage plan information by factory brand and raw material inventory plan information by factory brand, and the time when the inventory falls below the appropriate inventory for each factory and brand, and priority should be given to assigning vessels according to the urgency of transportation. Regarding the means of determining the transport target, the means of determining the transport target, Yamamoto which is the loading point of the transport target, the factory which is the landing site, and the brand that can be ported / loaded and arrive at the landing site on the required transport date. And the knowledge base for selecting suitable vessels for allocating vessels for voyage between loading and unloading sites based on the annual raw material purchase plan information and raw material vessel annual operation plan information, and Appropriate ship selection Using the knowledge base to determine the suitable ship for each shipping target, along with the amount of shipping target to maintain an appropriate inventory for each brand, other loading points, other landings, and other brands From raw materials to stacking Determine the pattern and volume, and loading alignment determining knowledge base so as to realize improvement loading ratio freighter, with utilizing the stacking registration determination knowledge base,
The above object is achieved by providing a transportation timing determining means for determining the arrival timing of a ship at the factory and preparing the unloading work plan, and making it possible to prepare a long-term raw material transportation distribution plan.

The present invention also provides a data management means for collectively managing raw material usage plan information by factory brand, raw material usage performance information by factory brand, raw material inventory performance information by factory brand, and raw material vessel movement latest information, and a factory-specific data management means. Shows the timing of entry, loading brand / amount, and cargo handling schedule in Gantt chart format, and displays the entry schedule display / input means that enables correction input, and the port of each ship, cargo handling period, loading brand / volume in diagram format. In charge of dispatch planning, including the means for displaying the voyage schedule and the loading brand and quantity for each ship, the transfer of cargo scheduled to be unloaded at other plants, the loading change for other ships, and the change of port calls at loading points during the voyage. It is equipped with a voyage schedule change inputting means for the user to input and a stock change calculating / displaying means for automatically calculating and displaying the forecast of the stock change based on the change. hand Check the inventory transition status for each place / brand, and if there is a risk that the inventory will not fit in the appropriate inventory, use the navigation schedule change input means to change the loading brand / quantity for each ship and the cargo to be loaded at other plants. Transfer, change loading to other vessels, change input of port of call at loading point during voyage, etc.
The above-described object is similarly achieved by enabling the daily operation such as confirming the correction result again by using the inventory transition display means.

The present invention further includes data reading means for grasping annual raw material purchase plan information, raw material ship annual operation plan information, annual use plan information by factory brand, and raw material inventory plan information by factory brand at the manufacturing plant, and the factory and brand. A transportation target determining means for determining a transportation brand to which a shipping ship should be preferentially assigned according to the degree of urgency of transportation, and a time when the inventory is below the appropriate inventory, and the loading land of the determined transportation target, Yamamoto, and landing site. It is possible to enter / load ports and arrive at the landing site on the required transportation date for the factories and brands that are An appropriate vessel selection knowledge base for determining a transportation vessel that can be assigned to a voyage, an appropriate vessel selection means for determining a transportation vessel for each transportation target by using the appropriate vessel selection knowledge base, and by brand of Along with the amount of the transportation target to maintain the regular inventory, the brand / quantity of the loading target is determined from the other loading land, the landing land, and the raw materials of other brands, and the loading to improve the loading rate of the transport ship In addition to using the decision knowledge base and the stacking decision knowledge base, it is equipped with a transportation timing determination means that determines entry timing and provides for unloading work plan, and prepares a long-term raw material transportation and dispatch plan, and a factory. Raw material usage plan information by brand, raw material usage record information by factory brand, raw material inventory record information by factory brand, raw material ship movement latest information, data management means for collectively managing, timing of entry and departure of each factory, loading brand, quantity, Expected cargo handling period is displayed in Gantt chart format, and the entry schedule display / input means that enables correction input, the port of entry for each ship, the cargo handling period,
The navigation schedule display means that shows the loading brand and quantity in a diagram format, and the loading brand and quantity for each ship can be changed, the cargo that is scheduled to be unloaded at another factory can be transferred, the loading can be changed on another ship, and the port of call at a port in the middle of the voyage can be changed. It is equipped with a voyage schedule change input means for the ship planner to input changes etc., and an inventory transition calculation / display means for automatically calculating and displaying the forecast of inventory changes based on the changes, Check the inventory transition status for each factory / brand using the inventory transition display means, and if there is a risk that it will not fit in the appropriate inventory, use the navigation schedule change input means to check the loading brand / quantity for each ship. Daily changes such as changes, transfers of cargo scheduled to be unloaded at other plants, changes to loading on other ships, changes to port calls at loading points on the way of voyage, etc. By enabling the operation, It is obtained by achieving the objectives.

[0013]

According to the present invention, data such as annual raw material purchase plan information, raw material ship annual operation plan information, annual use plan information by factory brand, raw material inventory plan information by factory brand, etc. is read according to the present invention, and each factory, brand In order to determine the time to fall below the appropriate inventory, the shipping brand to which the shipping vessels should be preferentially assigned is determined according to the urgency of the shipping.

[0014] Next, regarding the decided loading target (Yamamoto), loading land (factory), and brand, port entry / loading is possible, arrival at the loading date on the required shipping date, and annual raw materials In order to realize the allocation to the voyage between loading and unloading sites based on the purchase plan information and the annual raw material ship operation plan information, the transport vessels for each transport target are determined using the appropriate vessel knowledge base.

A stacking determination knowledge base for determining the brand / quantity of the stacking target from the other loading place, the landing place, and the raw materials of the other brand together with the amount of the transportation target for keeping the proper inventory for each brand. It has become possible to improve the loading rate of transport vessels by utilizing the.

In addition, factory inventory, daily usage,
In order to cope with deviations from Yamamoto's cargo handling status plan, fluctuations in the movement of raw material ships, raw material usage plan information by factory brand, raw material usage record information by factory brand, raw material inventory record information by factory brand,
Centrally manage the latest information on the movement of raw material vessels, the latest information on loading and unloading at loading sites, etc., change the loading brand and quantity for each ship, transfer the cargo scheduled to be unloading at another factory, change the loading on another ship, to the loading point on the way Shipment planner inputs changes such as port calls to the voyage schedule change input device, calculates the supply and demand situation based on the specification by the inventory change prediction calculation device, and predicts the inventory change based on the change in the inventory change display device. In the case of automatically calculating and displaying, even if the person in charge of supply and demand checks the inventory transition status for each factory / brand using the inventory transition display device and there is a risk that it will not fit in the appropriate inventory, Using the voyage schedule change input device, you can change the loading brand and quantity for each ship, transfer the cargo scheduled to be unloaded at another factory, change the loading on another ship, change the port of call at the loading point during the voyage, etc. , Again using the inventory transition display device Day-to-day operations, such as to confirm a positive result is possible.

Further, the above-mentioned operation for preparing a long-term raw material transportation / shipping plan for deciding the transportation timing to be used for preparing a cargo handling work plan and the above-mentioned daily operation for modifying the plan in response to changes in various situations are combined. In this case, the long-term plan can be flexibly changed according to the actual result, and an efficient berth unloading plan can be created and a stable raw material supply can be realized.

[0018]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a functional configuration of a material transportation and vessel allocation planning reasoning apparatus to which the present invention is applied.

The ship allocation planning device 10 reads the raw material purchase plan information 1, the raw material ship operation plan information 2, the raw material usage plan information 3 for each factory brand, and the raw material inventory plan information 4 for each factory brand through the data reading device 11 to be transported. The deciding device 12 decides the brand for which the transportation schedule is decided, and the appropriate vessel selecting device 13 allocates the appropriate vessels for transportation to the relevant transportation object based on the appropriate vessel selecting knowledge base 14.

With respect to the determined transportation ship, the transportation scheduling determination device 15 determines another stacking brand of the transportation target brand based on the transportation schedule determination knowledge base 16. The transportation timing determination device 17
A database 3 that determines the transportation timing according to the ship allocation criteria stored in the appropriate ship selection knowledge base 14, and includes voyage schedule information 31 for each ship and loading brand / quantity information 32 for each ship.
Write to 0.

In day-to-day operations, the ship dispatcher uses the ship entry adjustment device 20 in order to respond to changes in the factory inventory plan, usage plan, deviation of the loading and unloading situation at the hillside, and fluctuation of the raw material ship.
Raw material usage plan information 3 by factory brand, raw material usage record 5 by factory brand, raw material inventory performance information 6 by factory brand, raw material vessel movement latest information 7, loading and unloading progress latest information 8 are obtained through the data reading device 21, and the ship enters. Schedule display / input screen 22, voyage schedule display screen 23 for each ship, inventory change prediction calculation device 2
4. Monitor through the inventory transition display screen 25, and if problems occur such as fluctuations in the schedule of entering the factory or an unfavorable supply / demand situation, access the database 30 and enter the schedule / display screen 22 for entering the ship, and the voyage change designation screen Through 26, it is possible to change the loading brand and quantity for each ship, transfer the cargo scheduled to be unloaded at another factory, change the loading on another ship, and add ports to other loading points during the voyage.

The contents of each of the information items 1 to 8 are shown in FIGS.
FIG. 10 shows the appropriate ship selection knowledge base 15 and FIG. 11 shows the contents of the transportation schedule determination knowledge base 16.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

FIG. 12 is a flowchart showing the planning of raw material transportation.

First, in step 100, annual raw material purchase plan information 1, raw material vessel annual operation plan information 2, factory-specific raw material usage plan information 3, factory-specific information is read from the data reading device 11 of the ship allocation planning device 10 of FIG. Raw material inventory schedule information 4
The necessary data such as is read, and the brand to be processed is selected in the transportation target brand selection process in step 110. At this time, essential stocks that require a certain amount of inventory in operation,
Brands with low inventory margins are selected first. For example, brands are selected in order of importance of transportation and urgency.

In the transportation ship selection process of the next step 120, ships suitable for transporting the brand selected in the transportation target brand selection process 110 are selected. The selection criteria are that it is suitable for entering the port of the production area of the relevant brand, that its current location is close, and that the charter fee is low.

Next, in step 125, it is judged whether or not the transportation ship can be selected. If the transportation ship suitable for the transportation of the relevant brand cannot be selected, the transportation of the brand is abandoned, and step 11
Returning to the processing for selecting the brand to be transported 0, another brand is selected.

When the transportation ship can be selected, in the transportation rod knitting process of the next step 130, the accumulation of the brands from the same production area or the production areas on the transportation route is added to the relevant brand to form the transportation unit. The stocks to be stacked are selected based on the same criteria as in the transportation target stock selection process and the suitability of the transportation route.

In the next step 140, the transportation schedule determination process, predicts the arrival date and time of the transportation vessel to each of the loading and unloading transit points, and determines the vessel arrival schedule and the cargo handling work schedule. The cargo handling schedule is determined for all loading and unloading sites.

Finally, in step 145, it is determined whether or not the required amount has been planned, and these processes are repeated for all the brands that need to be transported at all landings (factories) or until the required amount is achieved.

Further, the ship entry adjusting device 20 can display the port entry schedule information of the shipping vessels for each loading port, the voyage schedule information for each vessel, the raw material usage plan, and the stock inventory transition by factory brand based on the port entry schedule at any time. is there.

In daily operations, the person in charge of supply and demand monitors it, and if the change does not fall within the proper stock range, the ship entry adjustment is carried out.

For example, when the stock of a certain brand is almost out of stock, transfer of shipping vessels for other factories or change of port of call, and when the berthing time is long due to the loading and unloading situation at the mountainside, change of the loading brand and quantity is specified.

Next, daily operation will be described with reference to the flowchart of FIG.

First, in step 200, raw material usage plan information 3 by factory brand, raw material usage record information 5 by factory brand, raw material inventory record information 6 by factory brand, raw material vessel movement latest information from the data reading device 21 of the ship entry adjustment device 20. 7. Read necessary data such as latest loading / unloading progress information 8. Here, the raw material use plan information 3 for each factory brand is the latest changed in daily operation unlike when a long-term plan is made. Next, in step 210, the entry schedule display / input screen 22, the voyage schedule display screen 23 for each ship, and the inventory transition display screen 25 of the entry adjustment device 20 are checked, and in step 215, the person in charge looks at the screen. ,
Judge whether the gap between the plan and the actual result is large.

As a result, if the deviation is large, in the next step 220, the actual results are entered in the entry schedule display / input screen 22, and in step 230, the voyage schedule is changed on the voyage change designation screen 26, and again. Return to step 210.

If there is no discrepancy between the plan and the actual result,
The process proceeds to step 240 and the updated plan data is returned.

By making such a change designation and simulating the inventory transition based on the result, the ship entry adjustment can be performed.

[0040]

As described above, according to the present invention,
It is possible to create a raw material transportation plan and predict long-term raw material inventory as the plan, and as a result, it is possible to obtain an efficient effect of creating an efficient berth unloading plan and achieving stable raw material supply.

In addition, after the transportation plan is once drafted, the fluctuation of the production plan causes the fluctuation of the stock status of raw materials, the progress of the cargo handling work and the fluctuation of the movement of the transport ship due to the disturbance factors such as weather. When it becomes necessary to sequentially adjust the transportation plan, the person in charge of supply and demand can interactively adjust the transportation timing, the content of the transportation object, etc., and flexibly make changes corresponding to the actual results.

Therefore, it becomes possible to realize an efficient berth unloading plan and a stable supply of raw materials.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an inference device for a raw material transportation ship allocation plan to which the present invention is applied.

[Figure 2] Explanatory diagram showing annual raw material purchase plan information

[Fig. 3] Explanatory diagram showing annual operation plan information for raw material vessels

[Fig. 4] Explanatory diagram showing raw material usage plan information by factory brand

[Fig. 5] Explanatory diagram showing planned stock of raw material inventory by brand

[Figure 6] Explanatory diagram showing raw material usage record information by factory brand

[Figure 7] Explanatory diagram showing raw material inventory performance information by factory brand

FIG. 8 is an explanatory diagram showing the latest information on movement of raw material vessels.

FIG. 9 is an explanatory view showing the latest information on loading and unloading progress of loading and unloading.

FIG. 10 is an explanatory diagram showing an appropriate ship selection knowledge base.

FIG. 11 is an explanatory diagram showing a transportation schedule determination knowledge base.

FIG. 12 is a flowchart showing the process of planning a raw material transportation plan.

FIG. 13 is a flowchart showing the process of adjusting the arrival of a raw material transportation plan.

[Explanation of symbols]

 10 ... Ship allocation planning device 11, 21 ... Data reading device 12 ... Transportation target determination device 13 ... Appropriate ship selection device 14 ... Appropriate ship selection knowledge base 16 ... Stacking decision knowledge base 17 ... Transportation timing determination device 20 ... Ship entry adjustment device 22 ... Entry schedule display / input screen 23 ... Vessel voyage schedule display screen 24 ... Inventory change prediction calculation device 25 ... Inventory change display screen 30 ... Database

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayoshi Uonami 1-3, Nakase, Mihama-ku, Chiba, Chiba Makuhari Techno Garden Kawatetsu Information Systems Co., Ltd. 1-3, Makuhari Techno Garden Kawatetsu Information Systems Co., Ltd.

Claims (3)

[Claims] [Claim 1] Annual raw material purchase plan information at a manufacturing plant,
Data loading means for grasping annual operation plan information for raw material vessels, annual usage plan information for each factory brand, and raw material inventory plan information for each factory brand, and the time when the inventory falls below the appropriate inventory for each factory and brand, and prioritized according to the urgency of transportation. The transport target determination means that determines the transport brand to which the transport ship is to be allocated, the port of loading, the factory that is the landing site, and the brand that can be transported, can be entered / loaded and the required transport deadline It is suitable for deciding transport vessels that can arrive at the landing site at the ship and realize the allocation to the voyage between the loading land and the landing site based on the annual raw material purchase plan information and the raw material ship annual operation plan information. A ship selection knowledge base, a suitable ship selection means for determining a transportation ship for each transportation target using the suitable ship selection knowledge base, and an amount of the transportation target for keeping an appropriate inventory by brand, as well as other loading points, Other land, other brands Using the stacking decision knowledge base that determines the brand and quantity to be piled up from the raw materials of the above and realizes the improvement of the loading rate of the transport ship, and the stacking decision knowledge base, and also the entry timing at the factory In addition, a reasoning apparatus for a raw material transportation dispatch plan, characterized by comprising a transportation timing determining means used for preparing an unloading work plan, and making it possible to prepare a long-term raw material transportation dispatch plan. 2. A data management means for collectively managing raw material usage plan information by factory brand, raw material usage record by factory brand, raw material inventory performance information by factory brand, raw material vessel movement latest information, and timing of entry into each factory, The loading schedule and amount, and cargo handling schedule are displayed in the Gantt chart format, and the entry schedule display / input means that enables correction input, and the port of entry for each ship, the cargo handling schedule period, and the loading schedule and schedule are shown in a diagram. The dispatching officer inputs the display means and changes in the loading brand and quantity for each ship, transfer of cargo scheduled to be unloaded at other factories, loading changes on other ships, changes in port calls at loading points during voyage, etc. It is equipped with voyage schedule change input means and inventory transition calculation / display means that automatically calculates and displays the forecast of inventory transition based on the changes, and the supply and demand person uses the inventory transition display means to use the factory / brand every If the inventory transition status is confirmed and there is a risk that it will not fit in the appropriate inventory, the shipping schedule change input means is used to change the loading brand / quantity for each ship, transfer of cargo scheduled to be unload at another factory, and other ships. The raw material transportation distribution is characterized by enabling daily operations such as changing the loading to the port, inputting changes to the port of call during the voyage, and checking the correction results again using the inventory transition display means. Inference device for ship planning. 3. Annual raw material purchase plan information at the manufacturing plant,
Data loading means for grasping annual operation plan information for raw material vessels, annual usage plan information for each factory brand, and raw material inventory plan information for each factory brand, and the time when the inventory falls below the appropriate inventory for each factory and brand, and prioritized according to the urgency of transportation. The transport target determination means that determines the transport brand to which the transport ship is to be allocated, the port of loading, the factory that is the landing site, and the brand that can be transported, can be entered / loaded and the required transport deadline It is suitable for deciding transport vessels that can arrive at the landing site at the ship and realize the allocation to the voyage between the loading land and the landing site based on the annual raw material purchase plan information and the raw material ship annual operation plan information. A ship selection knowledge base, a suitable ship selection means for determining a transportation ship for each transportation target using the suitable ship selection knowledge base, and an amount of the transportation target for keeping an appropriate inventory by brand, as well as other loading points, Other land, other brands Using the stacking decision knowledge base that determines the brand and quantity to be piled up from the raw materials of the above and realizes the improvement of the loading rate of the transport ship, and the stacking decision knowledge base, and also the entry timing at the factory In addition, it has a means for determining the timing of transportation used for preparing the unloading work plan and prepares a long-term raw material transportation / shipping plan, as well as raw material usage plan information by factory brand, raw material usage records by factory brand, and raw material inventory records by factory brand. Data management means for collectively managing information, latest information on raw material vessel movements, and timing of entry for each factory, loading brand / quantity, and planned cargo handling period in the Gantt chart format, and entry / display of entry schedule to enable correction entry Means, port of entry for each ship, scheduled cargo handling period, voyage schedule display means showing the loading brand / quantity in a diagram format, change of loading brand / quantity for each vessel, A voyage schedule change input means for the ship planner to input information such as transfer of cargo scheduled to be shipped to the factory, change of loading on another ship, change of port of call at a loading point on the way of voyage, and inventory transition based on the change Equipped with a stock transition calculation and display means that automatically calculates and displays the forecast of, the demand and supply person uses the stock transition display means to check the stock transition status of each factory / brand, and it does not fit in the appropriate inventory In case of fear, use the voyage schedule change input means to change the loading brand / quantity of each ship, transfer of cargo scheduled to be unloading at another factory, change loading to another ship, call at a loading port on the way of voyage The inference device for raw material transportation dispatch planning, which enables daily operations such as inputting changes and confirming the correction result again using the inventory transition display means.