JP2010095333A - Device for planning and supporting warehousing work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for planning and supporting a warehousing work capable of supporting the planning of the warehousing work during the shipping from a product warehouse in the field of the physical distribution of the manufacturing industry and the transport industry. <P>SOLUTION: The device includes: a condition inputting means for inputting the operational condition-experiences; the product information database; the vehicle conveying plan database; the progress database storing the progress data; the master database for the work simulation storing the rule data for generating the precedence relationship of works; a warehousing work plan preparation-simulation means for preparing the warehousing work plan and executing the simulation based on product information, the vehicle conveyance plan data, the operational progress status data, and the operational condition-experiences; a result display means for promoting the input of necessity/non-necessity of changing the acceptance/rejection-plan to the result together with the warehousing work plan and the result of simulation; and a plan changing means for changing the prepared warehousing plan. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a warehouse work planning support device that supports planning of warehouse work when shipping from a product warehouse in the logistics field of the manufacturing industry or in the transportation industry.

  In the manufacturing and transportation industries, products are often shipped by carrier ships. Since the amount of luggage that can be loaded on one carrier ship is generally larger than that of a carrier vehicle, a product warehouse is often installed near the loading berth in order to assort the products for one ship.

  FIG. 3 is a diagram illustrating an example of an outline of a product warehouse. In the figure, 11 is a product warehouse, 12 is a product, 13 is a transport vehicle, 14 is a vehicle loading entrance, 15 is a trolley for moving between buildings, 16 is a warehouse crane, 17 is a loading berth, 18 is a loading crane, and 19 is a loading crane. Represents each carrier.

  The finished product 12 at the factory is transported to the product warehouse 11 using a transport vehicle 13. The product warehouse 11 is provided with a vehicle carry-in entrance 14 for carrying in the vehicle, and this vehicle carry-in entrance 14 is used when the product is received. The product warehouse also contains products that are shipped by truck (not a carrier ship), but the vehicle entrance 14 is also used when the products are delivered.

  The product warehouse 11 is composed of a plurality of buildings, and an inter-building movement cart 15 for moving products between the buildings is installed in the product warehouse 11. The loading and unloading is performed by a warehouse crane 16 for movement within each building. The product loaded in the berth in front of the warehouse is directly delivered to the loading berth 17 using the warehouse crane 16, and the product loaded in the berth far from the warehouse is loaded on the transportation vehicle 13 and transported to the target berth. Movement of the product 12 from the loading berth 17 to the carrier 19 is performed using a loading crane 18.

In the product warehouse 11, products 12 with different varieties and destinations are mixed. In general, a baggage that is carried simultaneously by a single carrier has the following conditions to be satisfied.
・ The destination is the same.

  Luggage to be loaded on the ship is determined based on the above conditions and delivery date. Generally, the cargo to be loaded on the ship is decided many hours before the start of the loading operation. In addition, the order in which products are loaded is limited depending on the shape of the ship and the size of the products to be loaded. After the cargo to be loaded on the ship is decided, the warehouse work plan (plan of work sequence and timing such as transfer, delivery of shipped products, truck shipment, product warehousing), berth plan (loading products in which berth at which time zone) According to the plan). However, in general, there are many disturbances in product shipment work, and even if a plan is made, it cannot often be executed as it is.

Examples of the disturbance include the following.
・ Change of manufacturing plan ・ Bad weather (interruption of shipping, delay)
・ Variations in work time (work time varies depending on the person who works)

In order to deal with these disturbances, for example, there is a technique disclosed in Patent Document 1. In this technology, when the gap between the scheduled shipment plan and the actual shipment work becomes large, the time when the quay (berth) will run out is estimated by continuing the shipment plan, and priority is given to the work of the product expected to run out. The rank is raised and interrupted before to avoid running out of cargo.
JP-A-11-236105

However, the technique disclosed in Patent Document 1 does not consider the influence on other work caused by interrupting the work of an out-of-load product. That is, the crane work in the warehouse has the following various kinds of work, and the influence of interrupting the work on other works is various.
・ Shipping of shipped products to berths ・ Unloading of incoming products from transport vehicles ・ Loading of shipped products on transport vehicles (transportation to distant berths)
・ Loading of shipped products on trucks (products transported to customers)
・ Unloading products to inter-building carts

Examples of influences on other operations include the following.
・ Delayed due to delay in movement between buildings (results in causing the out of stock)
・ Delay work delay (occupies frontage for a long time)
・ Effects on truck shipments (delayed delivery)

  Which of the above-mentioned influences is to be prioritized is determined in various ways depending on the situation, such as the target or time, and cannot be uniquely determined at the early stage of the plan. In general, it is practically difficult to create a plan by inputting all the situations into a computer.

  In view of these problems of the prior art, the present invention can support planning of warehouse work, which can support planning of warehouse work when shipping from a product warehouse in the logistics field of the manufacturing industry or in the transportation industry. It is an object to provide an apparatus.

  The invention according to claim 1 of the present invention is a warehouse work planning support apparatus for supporting planning of warehouse work when shipping and shipping a warehouse product, and is a condition input means for inputting operation conditions and operation results. Product information database that stores product information such as products shipped and goods received, vehicle transportation plan database that stores vehicle transportation plan data that transports products from the factory to the warehouse, and progress that stores current operation progress data A situation database, a work simulation master database that stores work precedence relation generation rule data, product information stored in the product information database, vehicle transportation plan data stored in the vehicle transportation plan database, and the progress Operation progress data stored in the situation database and master data for work simulation Warehousing work plan creation that creates and simulates warehousing work plans on the basis of the predecessor relation generation rule data stored in the database, and based on these data and the operation conditions and operation results entered in the condition input means A simulation means, a result display means for displaying the warehouse work plan and the simulation result, and a display for prompting the user to input whether the result is possible or not, and the warehouse work plan creation / simulation means. A warehouse work plan planning support apparatus comprising a plan change means for changing a warehouse work plan.

  Further, the invention according to claim 2 of the present invention is the warehouse work planning support apparatus according to claim 1, wherein the plan changing means includes: a product delivery order, a product delivery time, a delivery vehicle arrival time, a vehicle delivery A warehouse work planning support apparatus characterized by having a function of changing one or more of a lot configuration and a warehouse work order.

  Furthermore, the invention according to claim 3 of the present invention is the warehouse work planning support apparatus according to claim 1 or 2, wherein the result display means includes the operational status of each facility, the berth and the time variation of the inventory in the warehouse. A warehouse work planning support apparatus that displays one or more of information, efficiency index values before and after carry-out adjustment, and work precedence relation information.

  In the present invention, when a disturbance occurs in the warehouse work of the product and it is necessary to change the plan, the effect of changing the berth unloading plan is simulated and displayed as a result. It is possible to easily make a precise plan change.

  FIG. 1 is a diagram showing a configuration example of a warehouse work plan planning support apparatus according to the present invention. Further, FIG. 2 is a diagram illustrating an example of a processing procedure for warehouse work planning using the warehouse work planning support apparatus. In the figure, 1 represents a condition input unit, 2 represents a warehouse work plan / simulation unit, 3 represents a plan change unit, and 4 represents a result display unit.

  In the description here, it is assumed that a warehouse operation plan is created every 24 hours, and the operation is performed in two stages in which it is appropriately corrected according to the operation results.

  When creating a work plan every 24 hours, the plan creator first inputs operating conditions such as equipment operation / rest status and worker assignment from the condition input unit 1 (Step 10). Such information is transmitted to the warehouse work planning / simulation unit 2.

  In the warehouse work plan / simulation unit 2, the product information (product type, size, etc.) such as the shipped product / receipt product is sent from the product information DB, and the vehicle transportation plan data (the time of delivery to the warehouse, (E.g. carry-out time) is acquired from the vehicle transportation plan DB, and a warehouse work plan for a planning target period (e.g., 24 hours ahead) is created. Other information necessary for creating the work plan includes the current operation progress (manufacturing progress in the factory and work progress in the warehouse), which is acquired from the progress DB. Note that the information stored in the progress DB is updated from moment to moment by a distribution facility management unit that manages each distribution facility.

  Here, warehousing work plan creation is processing (Step 11) for determining the order of various work in warehouse work (Step 11), and by executing the simulation of the next Step 12, maintaining the order of Step 11 and satisfying the work's precedence relationship In the same way, each work is assigned to a specific time. The work simulation master DB includes a work precedence relation generation rule, from which conditions to be satisfied by the crane work are generated.

  The plan to which the time created in Step 12 is assigned in this way is output to the result display unit 4 (Step 13). The plan creator checks the displayed plan and determines whether there is a problem (for example, a lot of lost time such as waiting time) in the plan (Step 14). If there is no problem, that is, if there is no need to change the plan, the plan is determined and terminated.

  If there is a problem, as a plan change work, a new plan is created by changing the product delivery order, the product delivery time, the arrival time of the transport vehicle, the vehicle delivery lot configuration, and the warehouse work order (Step 15). If it is necessary to re-determine all the work orders (No in Step 16), return to Step 11 to re-create the work plan, and if the changed work order is maintained and work times are assigned (No in Step 16), Go back to Step12 and repeat the process of executing a new plan simulation until no changes are needed. As described above, a work plan is first created.

However, the plan created every 24 hours also becomes inefficient due to deviations caused by disturbances, etc., so it is necessary to change the plan accordingly. Here, for example, when it is determined that the work plan and the operation result have greatly deviated regularly every 6 hours, the work plan is changed according to the operation result.
First of all, the progress manager (the person in charge of managing the progress of the work plan and reviewing the plan) examines what happens when the work is continued with the current plan. Perform the process.

  In the following, a description will be given of a processing procedure when a plan change is necessary in the work plan creation and work plan change processing.

  If, for example, the loading crane work plan in the output result of Step 13 shows that the berth is out of stock, and the operator (designator or progress manager) determines that the plan needs to be changed (YES in Step 14), take the countermeasures by bringing forward the work to carry out the product causing the out-of-package. The operator changes the order of product delivery, the time of product delivery, the arrival time of the transport vehicle, the configuration of the vehicle carry-in / out lot, etc. on the display screen from the plan change unit 3 (Step 15). The setting is input from the input terminal of the planning support apparatus so that the warehouse work simulation is executed again. In the plan support apparatus, the work plan creation / simulation unit executes work plan creation (Step 11) and simulation (Step 12) according to the changed condition, and the result display unit displays the result (Step 13). These processes are repeated until the operator determines that the plan change is unnecessary.

  In the result display section 4, information such as Gantt charts, equipment loads (frontage, trolleys, cranes), inventory time transition information (berths, in the warehouse), efficiency indicators before and after carrying out unloading adjustment, alarm messages, work prior information, etc. Is displayed. This makes it possible for the operator to clearly grasp the possibility of a specific carry-out work being advanced and the effect of the advance on other work. In this way, the operator selects an optimal plan while changing the advance conditions in various ways (Step 14).

  Next, crane work items are extracted, and the procedure for generating the preceding relationship of these work items (the process of Step 12) will be specifically described. Various operations are performed on a product from the time the product is received until it is shipped.

Examples of a series of operations performed on a product include the following. In the present invention, (1) to (5) are warehouse operations, and the plan is called a warehouse operation plan.
(1) Product warehousing work (from vehicle to warehouse): Warehouse crane work
(2) Loading work on the inter-building transportation cart (inside the warehouse → on the cart): Warehouse crane work
(3) Inter-building movement by inter-building movement trolley (building to ridge): Inter-building movement trolley work
(4) Removal work from the inter-building moving carriage (from the carriage to the warehouse): Warehouse crane work
(5) Product delivery work to the berth (inside warehouse → berth): warehouse crane work
(6) Shipping work (berth → inboard): Loading crane work

  And since there is a constraint that the order of the preceding (order) relationship of (1) → (2) → (3) → (4) → (5) → (6) between the above work, the warehouse work plan It is necessary to ensure that this predecessor relationship is not violated. For this purpose, when a simulation is executed in the warehouse work plan / simulation unit 2 (Step 12), an advance relation of work is created by referring to an advance relation generation rule stored in the work simulation master DB.

  There are two types of input data for generating a prior relationship during simulation execution. FIG. 4 is a diagram illustrating an example of shipped product data. FIG. 5 is a diagram showing an example of vehicle entry / exit work data.

  The shipped product data shown in FIG. 4 is information in the product information DB, which is information on products that have already been shipped. Moreover, the vehicle entry / exit work data shown in FIG. 5 is information in the vehicle transportation plan DB, and information on products that are loaded into and unloaded by the transportation vehicle is stored.

  For example, “Product AB0001” in which data is stored in the first record (first line) in FIG. 4 is placed in the product yard of the hot rolling factory ([storage location: hot rolling) in the planning stage. Yard]). Therefore, it is necessary to transport this to a product warehouse with a transport vehicle. Further, it can be seen from the record in FIG. 5 that AB0001 is put together with other products PPPP02 and QQQQ03 into a lot L00015 and received ([lot ID: L00015]). There are 3 warehouses ([Building ID: 3]). However, it can be seen from FIG. 4 that the delivery location is one berth in front of the building.

Therefore, if the six operations described above as an example of a series of operations performed on a product are specifically written out as necessary operations until AB0001 (product ID) is shipped, the following six operations are performed (preceding relationship). : (1) → (2) → (3) → (4) → (5) → (6)).
(1) Warehousing in 3 buildings
(2) Stacking work between 3 buildings
(3) Move from 3 to 1 building
(4) Removal work from inter-building trolley in one building
(5) Unloading work to the berth in one building
(6) Shipping work

  FIG. 6 is a diagram illustrating a part of the result of extracting work items. In this crane work list, necessary travel time, preceding work, and time interval with preceding work are stored as data in addition to the product movement From-To information. The “time interval from the preceding work” is a display of the length of time when the work of the target record cannot be started unless a certain time has elapsed since the preceding work was completed.

  In the example of FIG. 6, the time required for the movement of the inter-vehicle trolley from the time when the product AB0001 is loaded on the inter-vehicle trolley (through No. 2) to the time when the product AB0001 is lowered from the inter-building trolley (through No. 3), Through No. 3 is set as “the shortest time interval with the preceding work”. The “work time” and “minimum time interval with preceding work” information in FIG. 6 is set with reference to the work simulation master DB.

  Then, the process in the plan change part of Step15 is demonstrated. FIG. 7 is a diagram illustrating an example of a screen that is first displayed by the result display unit after the simulation is executed. On the screen, the loading operation for judging the waiting for the load and the related warehouse operation (in FIG. 7, [1 building crane] is displayed), the vehicle loading entrance occupation status (in FIG. 7, [1 building entrance] is displayed. Display Gantt chart.

  FIG. 8 is an enlarged view of a part of the Gantt chart of the loading operation of FIG. 7 and the warehouse operation related thereto. In FIG. 8, it can be recognized that the load waiting time has occurred because the loading crane work of the product AB0001 is delayed. In order to find the cause of the delay, click the “Preceding relationship display” button to enter the preceding relationship display mode, and then move the cursor such as a mouse to the position of the shipping work block of the product AB0001 on the screen. ,click. Upon receipt of the input, the result display unit extracts work data for the selected product from the warehouse work plan data using the corresponding product ID as a key, and performs the work related to the product in the order of the preceding relations. Displays an arrow to indicate the preceding relationship.

  By tracing back this displayed arrow, the operator can unload the berth from the Gantt chart of the warehouse crane work, and this will become the rate-determining rate, which can speed up the loading work further. You can easily see that you can't.

  Therefore, the operator will consider whether the load waiting time can be shortened. The operator sees the Gantt chart of warehouse crane work in FIG. 8 and that the work of different products PP0001 is included in the “moving carriage between buildings” that is the preceding work of “berth unloading”. Therefore, the “berth unloading” operation of the product AB0001 can be moved immediately after the “moving inter-building carriage” operation of the product AB0001, which is the preceding operation, and immediately after the “moving inter-building cart” Thus, it is determined that the waiting time immediately before loading of the product AB0001 can be reduced to 0 while maintaining the preceding relationship.

  At this time, for the movement, it is necessary to shift the warehousing operation of the product PP0001 and the berth unloading operation of the product AB0002 backward. According to the Gantt chart of FIG. 8, it is easily recognized that shifting the “berth unloading” operation to the product AB0002 does not affect the subsequent operation (“loading and unloading” operation of the product AB0002). Is possible.

  For the product PP0001, the effect of shifting the “warehousing” operation backward is determined from the display of the frontage occupation status. FIG. 9 shows an enlarged view of the Gantt chart at the front entrance of FIG. Looking at this, since “truck shipment (for three vehicles) work” continues immediately after the product PP0001, delaying the receipt of the product PP0001 is affected by these “truck shipment” work. You can see that it is late.

  Here, for example, if priority is given to setting the waiting time for the loading work to 0 even if the truck shipping work is delayed, on the Gantt chart of the loading crane work on the screen of FIG. The “berth unloading” block (frame) is moved forward to the position where the load waiting time becomes 0 with an input device such as a mouse. Then, the simulation is executed again by clicking the “plan correction” button. Upon receiving the input of “plan correction”, the work plan creation / simulation unit recalculates the warehouse crane work plan under the corrected conditions, and displays the result on the display means in the same format as in FIG.

  The changed result is shown in FIG. (A) Gantt chart of loading crane work (shown in the example of the screen in the “previous relationship display” mode), no waiting for loading, but on the other hand, Truck shipment work shifts backward from the occupied situation. By performing such a display, it is possible to make the operator visually confirm the preceding relationship and easily create an accurate plan for the influence of the change.

  In addition to this, in order to see the change due to the plan change, a “statistical result” button is provided in FIG. 7, and the result display unit accepts click input, and various statistics which are efficiency indexes for each simulation. The result (total load waiting time, facility operation rate) and message (delayed delivery date, product yard full in factory, etc.) may be output on the screen. Thereby, the operator can easily compare the change results.

It is a figure which shows the structural example of the warehouse work plan planning assistance apparatus which concerns on this invention. It is a figure which shows the example of a process sequence of the warehouse work plan planning using a warehouse work plan planning support apparatus. It is a figure which shows an example of the outline | summary of a product warehouse. It is a figure which shows the example of shipment product data. It is a figure which shows the example of vehicle entering / exiting work data. It is a figure which shows a part of result of having produced | generated the work record. It is a figure which shows the example of a screen displayed initially after simulation execution. It is a figure which expands and shows the warehouse operation | work relevant to a shipping operation. It is a figure which shows the example of a screen display of the occupation condition of a frontage. It is a figure which shows the result of having performed simulation again and performing the work preparation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Condition input part 2 Warehouse work plan and simulation part 3 Plan change part 4 Result display part 11 Product warehouse 12 Product 13 Transport vehicle 14 Vehicle entrance 15 Cargo for moving between buildings 16 Warehouse crane 17 Loading berth 18 Loading crane 19 Transport ship

Claims (3)

A warehouse work planning support device that supports planning of warehouse work when shipping and shipping products from a warehouse,
Condition input means for inputting operation conditions and operation results;
Product information database that stores product information such as shipped products and goods received, and
A vehicle transportation plan database storing vehicle transportation plan data for transporting products from the factory to the warehouse;
A progress database that stores the current operational progress data;
A master database for work simulation that stores work precedence relationship generation rule data;
Product information stored in the product information database, vehicle transportation plan data stored in the vehicle transportation plan database, operation progress data stored in the progress database, and work simulation master database Warehouse work plan creation / simulation means for inputting work precedence relationship generation rule data and creating and simulating a warehouse work plan based on the operation conditions and operation results input to the data and condition input means;
A result display means for displaying the warehouse work plan and the simulation result, and for prompting the user to input the availability of the result and the necessity of changing the plan;
A warehouse work plan planning support apparatus comprising: plan change means for changing a warehouse work plan created by the warehouse work plan creation / simulation means. In the warehouse work planning support device according to claim 1,
The plan change means includes
A warehouse work planning support apparatus characterized by having a function of changing one or more of a product delivery order, a product delivery time, an arrival time of a transport vehicle, a vehicle carry-in / out lot configuration, and a warehouse work order. In the warehouse work planning support device according to claim 1 or 2,
The result display means includes:
Warehouse operation plan characterized by displaying the operating status of each facility, time change information of berths and warehouse inventory, efficiency index value before and after carrying out adjustment, and information on prior relationship of work. Planning support device.