JPH0930612A - Storage space control method and device for slab yard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve storage space efficiency, by defining a storage space address in a slab yard as a row material address in accordance with a length factor, and a block address such as wide/narrow width addresses in accordance with a width factor; and controlling the condition of the storage space address as a yard map through using the defined row material and block addresses. SOLUTION: The size of a Y address, where the lateral movement direction of a crane is adopted as a slab yard width direction, is made the length of the common multiple of a slab length previously divided into several kinds, and storage space addresses in a Y direction in a slab yard are defined as two-row, three-row, and four-row material addresses in accordance with the length factors of slabs. Also, an X address in a lengthwise direction, the travel direction of the crane in the slab yard, is defined as a block address such as a wide/narrow width address in accordance with the width factor of the slab. The condition of the storage space address is controlled as a yard map, by using these defined row material and block addresses.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yard management method and apparatus for increasing yard efficiency in a slab yard.

[0002]

2. Description of the Related Art Conventionally, a slab yard is uniformly divided into sections having the same length and width, and is divided and managed only by one row or a plurality of rows. The storage efficiency was poor for various slab sizes, and a large slab yard was required. For example, when dividing into uniform divisions of different sizes, there is no choice but to manage according to the largest size, and a storage address with a small slab creates a wasteful area. Will be done.

As a storage management device of various sizes, there is a device as disclosed in Japanese Unexamined Patent Publication No. 21217/1999. However, this yard management device is for allowing stacking with respect to the coils.

Further, as a method for improving the operation efficiency of the yard, there is a method and an apparatus as disclosed in JP-A-6-340313. However, this calculates the time series deviation from the work instruction and work record for the crane device,
Predict the deviation from the present time on the basis of the time-series deviation calculation result and the time-series data on the current condition of the yard, and correct the yard determination method as necessary to improve the long-term crane work efficiency and yard operation efficiency. The object of the present invention is to provide a method for controlling the apparatus, and not a method for managing a yard for improving the yard efficiency for slabs of different sizes, which is a problem of the present invention.

[0005]

In addition to the above-mentioned known examples, there are various storage management methods or devices in the world.
There was nothing related to an efficient storage management method for slab yards. There is also a method of repeating the simulation using the simulation method in order to generally find the optimal storage address, but if the slab size is different, or if there is little storage space in a small yard and the inventory is large, Indeed, there are some cases where a solution cannot be obtained.

The present invention has been made to solve such a problem, and when there are slabs of various sizes, for example, a slab of a short size (single length) is provided with a length of The purpose of the present invention is to make it possible to increase the storage efficiency in the slab yard as much as possible, since it is less likely to conflict with pile restrictions such as the inability to place slabs of very different long sizes (double length length).

[0007]

The slab yard storage management method and apparatus of the present invention is adapted to the size of the slab yard, and the slab size (length, width) factors are set so as to increase the storage efficiency as much as possible. Depending on the length factor, the storage address in the slab yard, for example, 2 rows / 3 rows /
Defined as 4 row material addresses and ward allocation addresses such as wide / narrow width addresses corresponding to width factors, and manage the condition of storage addresses as a yard map using the column material addresses and ward allocation addresses defined above It is characterized by In addition, the yard address is not determined by just the slab size alone, but the yard map is determined so as to further increase the slab yard efficiency as much as possible by combining the actual yard map of the slab yard and the separately defined mountain limit conditions. It is characterized by managing.

The slabyard storage management method of the present invention is as follows:
In the case of a newly installed slab yard, the size of the slab yard width direction (Y direction), which is the transverse direction of the crane, is set to a length that is a common multiple of the slab length divided into several types in advance.
The storage address in the width direction (Y direction) of the slab yard is defined as the row material address corresponding to the length factor of the slab.
The length direction (X
(Direction) storage address is defined as a ward allocation address corresponding to the width factor of the slab, and the row address and ward allocation address defined above are used to manage the status of the storage address as a yard map, to be accepted The slab yard storage address is determined and managed so as to maximize the slab yard storage efficiency by combining the slab size (length, width) factors and the actual slab yard map with the separately defined mountain limit conditions. Is the way to do it.

When the length of the crane in the transverse direction (Y direction), which is the transverse direction of the crane, is already determined like the existing slab yard, the Y-direction storage address of the slab yard is set to the slab yard. In order to fit the width of the yard, it is defined as row material addresses that are divided into several types in advance according to the length factor of the slab, and also in the length direction (X direction) that is the traveling direction of the crane in the slab yard. By defining the storage address as a ward allocation address corresponding to the width factor of the slab, and managing the condition of the storage address as a yard map using the row material address and ward allocation address defined above, the size is determined. Even in the existing slab yard, the actual slab yard (length, width) factors and the actual slab yard map and the pile limit conditions specified separately are combined to create the slab yard. Determining a yard address to increase as possible a field efficiency, a method of managing.

On the other hand, the slab yard storage management device of the present invention can be used to determine the type of slab, the receiving method, the size data, and the number of sheets to be received regarding the slab to be received in the slap yard from another computer system or its own system installed separately. Receiving slab data input means that captures data, mountain condition storage means that stores data such as predefined height restrictions for piles, and allowable values for length / width differences, and the slab yard storage address management method defined above. Use
Yard map data storage means for the yard map that shows the status of the storage address by storing the actual storage data and the planned data of piles, the storage address determining / reserving means for determining the storage address of the incoming slab, and the above storage The designated storage address (X,
Y and Z addresses) to a crane equipment or a data output device such as a CRT, and when the slab is actually placed in a slab yard, the actual storage space input from the crane equipment or the data input device. An apparatus provided with means for updating the yard map data based on the address data.

[0011]

According to the slab yard storage management method and apparatus of the present invention configured as described above, the storage yard address corresponding to the size of the slab yard is managed even when the slab sizes are different. It is possible to determine the storage address that matches the slab size of the incoming material to the slab yard. And manage the storage address in this way,
By making a decision, it is possible to manage the slab yard storage addresses so as to maximize the yard storage efficiency regardless of whether it is a new or existing slab yard.

[0012]

EXAMPLES The present inventor has obtained the following findings as a result of repeated studies to achieve the above object. INDUSTRIAL APPLICABILITY The present invention is very effective not only in the length and width in which the slab size to be placed in the slab yard can be regarded as a substantially single size, but also in the case of a plurality of size configurations as shown in this embodiment.

Hereinafter, in order to simplify the description of the present embodiment,
Excluding the width factor of the slab, we mainly describe the length factor. Of course, if the actual slab size can be considered to be only a single width, then the width factor need not be considered and the management method and apparatus as described herein can be applied as is.

The storage address in this embodiment is defined and used as a three-dimensional address as described below. 1) Address: Address in the length direction of the slab yard (direction of travel of the crane) (address corresponding to the width size of the slab) 2) Address Y: Address in the width direction of the slab yard (cross direction of the crane) (length of the slab) Address corresponding to the size) 3) Z address: Address in the pile height direction of the slab yard (tens of thousands of steps) (address corresponding to the thickness size of the slab)

By the way, when there are a plurality of prime numbers,
Take advantage of the fact that the common multiple is a common multiple value for each value. The plurality of prime numbers referred to here correspond to slab lengths divided into a plurality of types.

Further, the length of the least common multiple can be considered to correspond to the length of the shortest slab yard width with good yard efficiency. For example, in addition to single size
If there is a double-sized size that is about twice as long as the single-sized size, and a size in between, double-row material (double-length length), 3-row material (intermediate length), and 4-row material, respectively. Defined as (single length) and managed.

Further, by making the length of the slab yard in the Y direction (the width of the yard) to be twice as long as the two-row material (double-length length), the slab yard width is equal to the length of each row material. Since it is the least common multiple, the storage area can be used most efficiently in a yard with a small area. In particular, when a slab yard is newly installed, the slab yard width can be set to be the most efficient storage space corresponding to the row material section length, and therefore the required area can be minimized.

On the other hand, even in an existing slab yard of a fixed size, by defining the row material section length to be an optimum length corresponding to the width of the slab yard, it is easy to manage and the Y is highly efficient. The address can be determined.

Hereinafter, the slab yard management method and apparatus according to the present embodiment will be sequentially described as shown in FIG. 1, which is a block diagram of an optimal yard management method for a new slab yard, and an existing slab yard shown in FIG. FIG. 4 is a block diagram of a method of allocating storage areas when the yard width is fixed, a block diagram of the storage management device shown in FIG. 3, and FIG.
It will be described based on the flowchart of the storage address determination procedure shown in FIG.

First, as shown in FIG. 1, by dividing the storage address of the slab yard, if there are two rows of materials, two sheets, three
In the case of the row material, three slabs can be placed in the width direction (Y direction) of the slab yard, and in the case of the row material, four slabs can be placed. That is, the relative length of the slab yard width of the storage space may be set to 12 which is the least common multiple by associating the following relative lengths with each slab, for example. This corresponds to twice the length of the double row material. 1) In the case of 2 rows: 6 2) In the case of 3 rows: 4 3) In the case of 4 rows: 3

Then, the Y-addresses in the width direction of the slab yard are provided with nine addresses as described below, corresponding to the slab length sections. <Y address> 1) In the case of 2 row materials: 21,22 2) In the case of 3 row materials: 31, 32, 33 3) In the case of 4 row materials: 41, 42, 43, 44 address Above the above Y address The 1-digit number indicates the row material length classification, and the last 1-digit number indicates the serial number corresponding to the number of the row material that can be placed.

Here, these addresses are managed in correspondence with the center position of each row member corresponding to the slab length section. It is not essential to define the position of the Y address of the slab yard corresponding to the center position of each row, but by assigning an address to this position, the center position of the slab and the crane equipment that conveys the slab Are consistent with each other, and stable transfer work can always be performed.

As a concrete example of the present invention, the slab length L is divided into the following ranges and they are referred to as 2-row material / 3-row material / 4-row material. 1) 10,000 mm <L ≦ 15,500 mm 2) 7,000 mm <L ≦ 10,000 mm 3) L ≦ 7,000 mm

The reason why the two-row material is not a simple double length of the four-row material is to provide a non-interference area (distance) between the piled slabs. In this embodiment, the size of the slab yard width is 38 m including the non-interference areas at both ends of the slab yard. That is, about 2 m of non-interference area is set between the slabs of each row member and both ends of the yard.

Similarly, at the X address in the length direction of the slab yard, the slab width is divided into the following sections, each of which is divided into a wide zone and a narrow zone. 1) Zone corresponding to slabs with a width of 1300 mm or more (3.0 m width) 2) Zone corresponding to slabs with a width of 1300 mm or less (2.5 m width) Here, the above divisions apply to all slabs On the other hand, up to 3
This is a case of operation premise that a width of m is sufficient.

In the present embodiment, the wide and narrow zone zoning addresses are broadly divided into a wide zoning division address area and a narrow zoning division address area. The width address may be defined alternately.

As is apparent from FIG. 1, for example, when three row members are placed at the central address 32, the same three row members are
No. 33 or 4 rows can be newly placed at Nos. 41 and 44. On the other hand, for example, if it is the same three-row material as above, but it is placed at the 31st edge instead of the center, not only can the 3rd row material be placed at 32 and 33 addresses, or the 4th row material can be placed at 43 and 44 addresses. Two rows of materials can be placed at address 22.

That is, when a slab is placed at a new vacant address, it is possible to place a row member having a size as large as possible later, so that the placement efficiency can be improved. Of course, if the optimal placement for a smaller row is gone, it can be placed in a larger row.

Next, when the width of the slab yard has already been determined as in the existing slab yard shown in FIG. 2, the position of the Y address may be determined in accordance with the yard width. However,
It is unavoidable that waste occurs in the slab yard as compared with FIG. 1, but similarly, the storage address can be easily managed and the storage efficiency can be increased.

Here, in FIG. 2, the length division of the slab is the same so that it can be easily compared with FIG. 1, the slab yard width is gradually narrowed and changed, and the name (name) of the row material is assigned to the storage address. The description is changed from that of FIG. 1 according to the definition of.

Next, in the slab yard storage management apparatus shown in FIG. 3, the receiving slab data input section 301 takes in data such as the type of slab to be received in the slab yard, the receiving method, the size data, and the planned number of sheets to be received. . The data acquired by the above-mentioned incoming slab data input section 301 is stored in the storage address determination / reserve section 3 described later.
Used in 04. Further, in the pile condition storage unit 302, data of constraint conditions such as a pile height constraint and a length / width difference allowable value are separately stored in advance.

The yard map data storage unit 303 stores the slab yard performance data and the heap loading schedule data determined by the yard address determination / reservation unit 304. Further, these data are used as core data in the process of the storage address determination / reservation unit 304. Yard map data is a group of data showing the situation of storage addresses.

Next, the storage address determination / reservation section 304
Is a processing unit that is the core of the main storage management device. The basic processing contents will be described in more detail with reference to FIG. 4 described later. The storage address instruction output unit 305 outputs the planned storage addresses (X, Y, and Z addresses) determined by the storage address determination / reserve unit 304 to the crane equipment or the CRT terminal device. By using this planned storage address, the crane can be automatically controlled.

On the other hand, the yard map data updating unit 306
When the slab is actually placed in the slab yard, the yard map data is updated based on the actual storage address data that is automatically or manually input from the crane equipment or the CRT terminal device. Further, the actual reserve data is stored and the scheduled reserve data is reset.

Next, the outline of the processing procedure of the storage address determining / reserving unit 304 of FIG. 3 will be described based on the flowchart of FIG. First, step 401 in FIG.
Determines the search range of the storage address from the slab type and acceptance method. In particular, it is necessary when there are a plurality of incoming slapyards, and even when there is a single slabyard, the areas within the slabyard are divided according to product types. For example, there are cases in which it is desired to manage slabs by product type and destination, or by dividing product areas (passed materials) and surplus materials (reserved materials) in storage areas. In addition, if the slab of the entire charge (cast) to which the applicable slab belongs as a constraint condition for stacking does not want to stack together with other slabs of other charges, the search range of the storage address suitable for the material to be received is pre-specified. To decide.

Next, at step 402, it is checked whether or not the length division of the receiving material and the corresponding storage address are equal. Here, if the length sections are the same, the process of step 403 is performed. On the other hand, if they are not equal, step 407.
Process.

In step 403, it is checked whether or not there is room for stacking new slabs at the relevant storage address. Here, the pile space refers to the height limitation. The number of stackable slabs (Z address) is generally not a fixed number, and the maximum height is limited. Therefore, if only thick slabs are stacked, the number is small, and if only thin slabs are used, Naturally, the number of piles that can be stacked increases. Therefore, the check is performed using the total value of the slab size data (thickness) already piled up.

As a concrete example of the present invention, since the pile height limit is set to 3,600 mm, the slab thickness is 200 mm.
If you pile up all the slabs, up to 18 sheets, 25
If only 0 mm thick slabs can be piled up to 14 sheets.

If there is room for stacking, step 404 is performed. On the other hand, if there is no room for stacking, the process of step 407 is performed. When a new slab is piled up at the relevant storage address in step 404,
Check if the pile condition is satisfied.

The pile condition mentioned here is for keeping the difference in the slab width between the slabs piled up at the same storage address within a certain allowable value range. That is, it is checked whether the difference in slab width between the minimum width slab or the maximum width slab that has already been piled up at the relevant storage address and the slab to be piled up this time is within the allowable value. There is no problem if the X address is divided into different widths according to the slab width,
It is necessary in order to use the slab yard as flexibly as possible by simply dividing it into two sections, a wide zone and a narrow zone, as in the specific example of this embodiment.

This is to ensure that a plurality of slabs can be grasped at one time for safety measures such as prevention of collapse of loads when there is a width difference, or when the crane equipment for handling the slabs is a tong crane. This is because As a concrete example of the present invention, it is possible to stack the same pile up to a difference of 100 mm. That is, the allowable value up to ± 50 mm is set for both sides.

If the pile condition is satisfied, step 4
The processing of 05 is performed. On the other hand, if the pile condition is not satisfied, the process of step 407 is performed. Next, step 4
At 05, the storage address (X, Y, and Z addresses) is provisionally reserved. As a matter of course, at the stage where the slab is actually placed, this storage address is changed from the temporary reserve state to the actual status.

Finally, in step 406, it is checked whether or not the tentative determination of storage addresses for the number of slabs scheduled to be received this time is completed. Here, if the processing for all the sheets is completed, the processing ends. If all the processes for the number of sheets to be received are not completed, the process of step 407 is performed.

At step 407, the storage address to be checked next in the search range is updated, and the processing from the snap 402 is repeated. Here, even if the storage address cannot be determined within the planned search range and the determination cannot be made, if the processing such as relaxing the conditions of the search range is added, the above series of steps can be repeated again. It is possible.

Further, in the following, when slabs having different lengths are already placed in the slab yard,
It is shown in reference to which storage address when a new receiving slab is to be placed in a new empty area. Only FIG. 5 and FIG. 6 are attached herein.

Here, the solid line shows the slab already placed in the slab yard, and the dotted line shows the receiving slab to be newly placed. In addition, the numbers written in the slabs shown are the row material addresses (Y
Address). 1) When two rows of material are placed in one row (Fig. 5) 2) When two rows of material and one row of four rows are placed (Fig. 6) 3) One row of three rows of material 4) When 3 rows of material are placed in 2 rows 5) When 3 rows of material and 4 rows of material are placed in each row 6) When 4 rows of material are placed in 1 row 7) 4 rows When two rows of wood are placed 8) When four rows of wood are placed in three rows

As described above, according to the present embodiment, it is possible to provide a method and an apparatus capable of managing the storage address of the slab yard so as to increase the storage efficiency of the slab yard as much as possible.

As described above, in the present embodiment, the size composition ratio of the slab is divided into three types of 2 row material / 3 row material / 4 row material depending on the length factor, but depending on the size composition ratio to be produced. It should be decided by conducting a preliminary study as to whether three rows of materials should be taken into consideration and whether wide / narrow materials should be considered depending on the width factor. Further, it is needless to say that different length sections other than the two-row member / three-row member / four-row member are not used.

In the illustration of the above-mentioned embodiment, the slab width is almost single and the X-address is a uniform-width address for simplification of the description, but if it is necessary to divide wide / narrow material, etc. The wide material area and the narrow material area may be divided at a ratio corresponding to the size composition ratio of the slab, and the position of the X address may be determined and defined corresponding to each slab width division.

Although the yard management method and apparatus are complicated, if the yard address management method of the present invention is used, even if the slab yard is no longer available, for example, a double row material (double scale) can be used. 2 rows of 4 rows (single length) on top
It is also possible to secure a place for emergency evacuation by placing one or three rows of materials (intermediate length).

[0051]

According to the slab yard storage management method and apparatus of the present invention, as described above, the slab size is not only the single-size size but also the double-size size which is about twice as long as the single-size size. If there is a size of the intermediate length, each of them is a two-row material (double length length), a three-row material (intermediate length), and a four-row material.
By defining and managing row materials (single length), the yard can be used very efficiently. In addition, by enabling efficient storage management, the required area can be minimized and investment can be suppressed, especially when a slab yard is newly constructed. On the other hand, if the slab yard is already installed,
By defining the storage address corresponding to the size of the slab yard, it is possible to manage the storage efficiency as well.

[Brief description of drawings]

FIG. 1 is a diagram showing a method of sorting storage addresses of a new slab yard which is an embodiment of the present invention.

FIG. 2 is a diagram showing a method of dividing storage addresses of an existing slab yard, which is an embodiment of the present invention.

FIG. 3 is a functional block diagram showing a storage management apparatus for a slab yard which is an embodiment of the present invention.

FIG. 4 is a flowchart showing a processing procedure for deciding a storage address and temporarily reserving it, which is an embodiment of the present invention.

[Fig. 5] Fig. 5 is a diagram showing, in reference to which storage address, a new receiving slab having different length divisions can be placed when two rows of materials are placed in one row in the slab yard which is one embodiment of the present invention. It is the figure of the illustrated slab yard.

[FIG. 6] When two rows of row members and one row of four rows are placed in a slab yard, which is an embodiment of the present invention, new receiving slabs having different length divisions can be placed at any storage address. It is the figure of the slab yard illustrated referring to whether it can be done.

[Explanation of symbols]

 301 Input slab data input section 302 Mountainous condition storage section 303 Yard map data storage section 304 Storage address determination / reserve section 305 Storage address instruction output section 306 Yard map data updating section

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[Procedure amendment]

[Submission date] July 28, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

The present invention relates to relates to a yard management method and apparatus enhances come Rudake leaving the yard efficiency in the slab yard.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

On the other hand, Area management apparatus of the slab yard of the present invention, and the like separately installed with other computer system or the local system, varieties relates slab to accept the slab yard, receiving method, size data, and acceptance projected number Input slab data input means that captures data such as the above, pile condition storage means that stores data such as predefined height restrictions for piles, and allowable values for length / width differences, and the storage address of the slab yard defined above. Use management methods,
Yard map data storage means for the yard map that shows the status of the storage address by storing the actual storage data and the planned data of piles, the storage address determining / reserving means for determining the storage address of the incoming slab, and the above storage The designated storage address (X,
Y and Z addresses) to a crane equipment or a data output device such as a CRT, and when the slab is actually placed in a slab yard, the actual storage space input from the crane equipment or the data input device. An apparatus provided with means for updating the yard map data based on the address data.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction contents]

Next, the outline of the processing procedure of the storage address determining / reserving unit 304 of FIG. 3 will be described based on the flowchart of FIG. First, step 401 in FIG.
Determines the search range of the storage address from the slab type and acceptance method. In particular, it is necessary when receiving slab yard and if it is more of the areas of the slab yard be a single slab yard are separated by such varieties. For example, there are cases in which it is desired to manage slabs by product type and destination, or by dividing product areas (passed materials) and surplus materials (reserved materials) in storage areas. In addition, if the slab of the entire charge (cast) to which the applicable slab belongs as a constraint condition for stacking does not want to stack together with other slabs of other charges, the search range of the storage address suitable for the material to be received is pre-specified. To decide.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction contents]

[0039] If there is a pile of the room's or performs the process of step 404. On the other hand, if there is no room for stacking, the process of step 407 is performed. When a new slab is piled up at the relevant storage address in step 404,
Check if the pile condition is satisfied.

Claims (3)

[Claims] 1. In a new slab yard, the size (length) in the slab yard width direction (Y direction), which is the transverse direction of the crane, is set to a common multiple of the slab length divided into several types in advance. The storage address in the Y direction of the yard is defined as the row material address corresponding to the length factor of the slab, and the storage address in the length direction (X direction), which is the traveling direction of the crane in the slab yard, corresponds to the width factor of the slab. The slab size (length, length, etc.) to be received by managing the state of the storage address as a yard map using the row material address and the ward allocation address defined above.
Width) factor and the actual yard map of the slab yard, together with the mountain limit conditions specified separately, the slab yard is characterized in that the yard address is determined and managed so as to increase the yardage efficiency of the slab yard. Storage management method. 2. When the length in the width direction (Y direction) of the crane, which is the transverse direction of the crane, is already determined like the existing slab yard, the Y-direction storage address of the slab yard is set to the slab yard. The row material address is divided into several types in advance according to the length factor of the slab so as to match the width length of the slab, and the storage in the length direction (X direction), which is the traveling direction of the crane in the slab yard. An existing area with a fixed size is defined by defining the address as a ward allocation address corresponding to the width factor of the slab and using the row material address and ward allocation address defined above to manage the condition of the storage address as a yard map. In the slab yard of the slab yard, the slab yard should be combined with the slab size (length, width) factors to be received, the actual yard map of the slab yard, and the pile limit conditions specified separately. A storage management method for a slab yard characterized by determining and managing storage addresses so that the storage efficiency of the storage space can be increased as much as possible. 3. An incoming slab data input means for taking in data such as a variety of slabs to be received in the slab yard, a receiving method, size data, and an expected number of sheets to be received, and a height constraint, a length and a width of a predefined pile. Using the pile condition storage means for storing data such as the allowable difference value and the storage address management method of the slab yard defined in claim 1 or 2, the storage actual data and the planned pile data are stored to store the storage address. The yard map data storage means for the yard map showing the state of the yard map, the yard address determination / reserve means for determining the planned yard address of the receiving slab, and the yard address (length determined by the above-mentioned yard address determination / reserve means Direction X, width direction Y, and height direction Z), and means for indicating and outputting, when the slab is actually placed in the slab yard. A storage management device for a slab yard, further comprising means for updating the yard map data based on the actual storage address data.