KR20160098651A

KR20160098651A - Apparatus for scheduled production planning of precast concrete member and method thereof

Info

Publication number: KR20160098651A
Application number: KR1020150020219A
Authority: KR
Inventors: 김영석; 신나래; 유현석; 염동준
Original assignee: 인하대학교 산학협력단
Priority date: 2015-02-10
Filing date: 2015-02-10
Publication date: 2016-08-19
Also published as: KR101672118B1

Abstract

The present invention relates to an apparatus and method for establishing a production schedule of precast concrete members.
The production schedule planning apparatus for a precast concrete member according to the present invention includes a data collection unit for receiving and sorting production information data of precast concrete members, The data are rearranged according to the calculated production schedule of each member, and the data grouped according to the production schedule of the similar members group, which is calculated by considering the production schedule of each member and the number of members included in the reordered data, And a mold combination calculating unit for calculating a mold combination in consideration of a production schedule for each group included in the grouped data and an optimum combination of molds meeting predetermined conditions in the calculated mold combination are determined Mold combination determining section.
According to the present invention, the precast concrete member produced on the basis of the order is adhered to the schedule of the field assembly part and the efficient member production is enabled.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a precast concrete member,

The present invention relates to an apparatus and method for establishing a production schedule of precast concrete members. More particularly, the present invention relates to a precast concrete member manufactured on the basis of order, The present invention relates to an apparatus and method for establishing a production schedule of a cast concrete member.

The precast concrete member is made of a reinforced concrete member molded in a mold in a factory or a member required to fix it in a factory (column, beam, bottom plate, etc.) by steel formwork, It refers to a product that has been prepared for short-term storage in a steam storage room and can be transported to a construction site for construction as a cooking structure. At this time, the abbreviation PC (precast's initial letter) refers to a factory-made member, which means "baked" in advance.

The production of these precast concrete members is an important management step that directly affects the economics and air quality of the precast concrete method. The production costs of precast concrete members including steel mold costs depend greatly on the production management ability of the producers, and the assembly schedule of the members in the field is also closely related to the production schedule of the members. Therefore, the absence scheduling of the precast concrete producers, which determine the production schedule of the members and the use plan of the mold, can be an important factor determining the success or failure of the precast concrete method.

However, since the production schedule of the conventional precast concrete member is mainly established by the experience and intuition of the production manager, the schedule related to the production scheduling based on the manual or the formal process that the production manager can easily refer to There is no such thing. Accordingly, there is a limitation in reflecting the production deadline for each member, the efficiency of the mold use plan, and the convenience of establishing the production schedule and the objectivity.

The technology of the background of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2000-0019558 (published on Apr. 15, 2000).

SUMMARY OF THE INVENTION The present invention provides a method and apparatus for establishing a production schedule of a precast concrete member, which enables a precast concrete member produced on the basis of order to adhere to a schedule of a field assembly part and to produce an efficient member .

The production scheduling apparatus for a precast concrete member according to an embodiment of the present invention includes a data collection unit for receiving and sorting production information data of the precast concrete member; A member-by-member rearrangement unit for rearranging the data according to a member production schedule calculated in consideration of the number of members included in the sorted data and the production deadlines for each member; A similar member group grouping unit for grouping the reordered data according to a production schedule for each group of similar members, which is calculated in consideration of the number of members included in the reordered data and the production schedule for each member; A mold combination calculating unit for calculating a mold combination in consideration of a group production schedule included in the grouped data; And a mold combination determining unit determining an optimal mold combination that matches predetermined conditions among the calculated mold combinations.

The production information data of the precast concrete member may include at least one of a group, a member, a quantity per member, and a production deadline by member.

Wherein the mold combination calculating unit calculates the number of molds to be added to the molds based on the number of similar members and the deadline of production when the number of similar member groups is less than the set number, The mold combination can be calculated by an insertion assignment method in which the similar member groups are sequentially assigned to the molds when the number of the similar member groups is equal to or greater than the set number.

The production deadline can be calculated by the following equation.

Here, F is the due date of production by members, D _m is the mat placement date, _f D is the production of free date, Ds refers to the production starting date.

The production schedule for each member can be calculated by the following mathematical expression as late production start date and late production end date for each member.

Where S _m is the late production start date for each member, F _m is the late production end date for each member, and Q is the quantity per member.

The production schedule for each of the similar member groups can be calculated by the following mathematical formula as late production start date and late production end date for each similar member group.

Where S _g is the late production start date for each similar member group, S _g _{, i} is the late production start date for each of the n members in the similar member group,

F _g is the late production end date for each similar member group, i is the order of members in the group, and Q _I is the number of members.

The calculated mold combination may include at least one of the required number of molds, the mold resetting easiness index, and the production completion date.

The mold combination determination unit may determine an optimal mold combination that meets predetermined conditions in consideration of at least one of the required number of molds, the mold resetting easiness index, and the production completion date for each combination of molds.

The mold resetting easiness indicator includes a reverse score for calculating a positive score according to a change amount of a similar member group when resetting from a small member to a large member, And the ease of resetting is evaluated by a plus one-way score, which is calculated by giving a score for the convenience of resetting. When the reverse score is lower and the positive one-way score is higher, the mold resetting easiness index can be evaluated to be higher.

A method for establishing a production schedule of a precast concrete member according to an embodiment of the present invention includes: a data collecting step of receiving and arranging production information data of the precast concrete member; A step of rearranging the data according to a member production schedule calculated in consideration of the number of members included in the sorted data and the production deadline for each member; Grouping the reordering data according to a production schedule for each group of similar members, which is calculated in consideration of the number of members included in the reordered data and the production schedule for each member; A mold combination calculating step of calculating a mold combination in consideration of a group production schedule included in the grouped data; And a mold combination determining step of determining an optimum mold combination that matches predetermined conditions among the calculated mold combinations.

The apparatus and method for establishing a production schedule of precast concrete members according to the present invention have an effect of enabling the precise concrete members to be produced on the basis of orders to be adhered to the schedule of the field assembly and efficient member production.

In addition, the present invention can establish production scheduling of members capable of efficiently using molds within a range that facilitates the modification and resetting of the molds, the quantity of each member, and the deadline of production, The pre-cast concrete method can be activated more effectively.

Further, the present invention has an effect of being able to be applied to various fields because it is possible to reflect the schedule of delivery of each product when establishing the production schedule of factory-produced products having respective delivery dates in addition to precast concrete members.

1 is a block diagram illustrating an apparatus for establishing a production schedule of precast concrete members according to an embodiment of the present invention.
2 is a table showing data input to a data collecting unit in a production scheduling apparatus for a precast concrete member according to an embodiment of the present invention.
FIG. 3 is a table showing data rearranged by members according to an apparatus in a production scheduling apparatus for precast concrete members according to an embodiment of the present invention.
FIG. 4 is a table showing data and production scheduling grouped by the similar departments according to the similar member groups in the production schedule planning apparatus of the precast concrete member according to an embodiment of the present invention.
5 is a view illustrating a process in which a mold combination is calculated by a mold combination calculation unit in a production schedule planning apparatus of a precast concrete member according to an embodiment of the present invention.
FIG. 6 is a view illustrating a process of calculating a mold combination according to an additional allocation method when calculating a mold combination in a production scheduling apparatus for precast concrete members according to an embodiment of the present invention.
7 is a view illustrating a process of calculating a mold combination according to an insertion assignment method in calculating a mold combination in a production scheduling apparatus for precast concrete members according to an embodiment of the present invention.
8 is a diagram illustrating a process of calculating an optimum mold combination according to a priority order of each indicator in a production schedule planning device of a precast concrete member according to an embodiment of the present invention.
FIG. 9 is a flowchart showing an operation flow of a production schedule planning method of a precast concrete member according to an embodiment of the present invention.
10 is a flowchart showing a detailed operation flow of a mold combination calculation step in a production schedule planning method of precast concrete member according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus and method for establishing a production schedule of precast concrete members according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a block diagram illustrating an apparatus for establishing a production schedule of precast concrete members according to an embodiment of the present invention.

1, the apparatus 100 for establishing a production schedule of precast concrete members according to an embodiment of the present invention includes a data collecting unit 110, an estimating unit 120 for each member, 130, a mold combination calculating section 140, and a mold combination determining section 150.

In addition, the apparatus 100 for establishing a production schedule of a precast concrete member for establishing an optimal production schedule of a preset precast concrete member according to an embodiment of the present invention is predefined as follows .

First, each precast concrete member is installed in a plurality of sites in the field, and each zone has a different matting date, wherein the matting date is a date on which the mat foundation is laid on the site where the precast concrete member is installed.

In addition, the production of the member has a production cycle of one member per mold per day, and the mold can be used after being modified or reset.

At this time, the modification of the mold does not cause a certain delay in the production of the member, but is produced in the order of the small member to the large member for convenience of mold modification.

The resetting operation of the mold takes a day, and the resetting of the mold is produced in the order of the similar member group to which the small member belongs in the order of the similar member group to which the large-sized member belongs, It is possible to reset it in the reverse direction in consideration of the production deadline.

Here, the similar member group is a group of members having similar specifications in the production information data of the precast concrete member, and the modification of the mold is one of methods of using the mold by recycling the mold during the production of the member, Lt; RTI ID = 0.0 > a < / RTI >

The resetting of the mold is also a modification of the mold to produce a different group of members after the production of the members in the similar member group has ended.

2 is a table showing data input to a data collecting unit in a production scheduling apparatus for a precast concrete member according to an embodiment of the present invention.

The data collecting unit 110 receives and arranges the production information data of the precast concrete member in order to establish an optimal production schedule of the preset precast concrete members.

That is, the production information data of the precast concrete member including the member installation drawing, the mat mounting date by zoning, the member number and specification, the specification by number, the quantity, and the mat placement date are listed and the member size (width, , Length) in descending order, and in ascending order by member number.

In this case, the production deadline (F) for each member can be calculated from the production margin date, which means the number of days from the production start date for which the member production is first started to the production deadline, .

Here, Dm denotes the mat put date, Df denotes the production allowance date, and Ds denotes the production start date.

In addition, the data collecting unit 110 assigns group numbers to members having similar standards. For example, in the case of columns and slab members, members having the same width and length can be grouped. In the case of the beam member, members having the same width and width can be grouped.

Therefore, the data collecting unit 110 generates the production information data of the precast concrete member by arranging the group, member, quantity, and production deadline in the order of the mat, as shown in Fig.

FIG. 3 is a table showing data rearranged by members according to an apparatus in a production scheduling apparatus for precast concrete members according to an embodiment of the present invention.

The member sorting unit 120 rearranges the production information data of the precast concrete member according to the member production schedule calculated in consideration of the quantity of each member and the production deadline included in the sorted data in the data collecting unit 110. [

At this time, the production schedule for each member is determined by the late production start date (hereinafter referred to as LST) for each member estimated by the following formula (2) and the production date And a late production end date (hereinafter referred to as LFT).

Here, S _m is the late production start date for each member, F _m is the late production end date for each member, F is the production deadline for each member, and Q is the quantity per member.

That is, the member-by-member calculating unit 120 rearranges the group, member, quantity, LST and LFT as shown in FIG.

If there are two or more members having the same member number and different production deadline, the LST (S _m ) and LFT (F _m ) for each member can be calculated by integrating the data list.

In this case, the data list is integrated in order to continuously produce the same members in consideration of easiness of modification of the mold. More specifically, for each n member list, LST (S _m , _i ) LFT (F _m , _i ) is calculated according to the following equations (4) and (5), and the production quantity Q _i , _D is calculated on a date basis.

Here, i denotes the order number of the member list, and D denotes the date.

Also, n pieces combined by date producing member quantity of the same member list by date total output member quantity (Q _D) for the calculation as shown in Equation 6, by date to the cumulative production member quantity production start date (S _D to satisfy the ) Is calculated as shown in Equation (7). Finally, the LST (S _m ) per member is the smallest of the estimated production start dates.

Here, d represents each date.

The LST (S _m ) and the LFT (F _m ) for each member are calculated according to the following Equations (8) and (9) based on Equations (6) to (7).

If LST (S _m ) for each member is smaller than 1, it means that two or more data lists for producing n identical members are required. In this case, two or more data lists are generated by dividing the member quantity.

That is, when two member lists are generated, the LST (S _m ) for each member and the LFT (F _m ) for each member are calculated using the production start date (S _D1 , S _D2 ) ).

After this, the calculation of the member by LST (S _m) and LFT (F _m) by members finished basis, production information data of the group, the absence, quantity, LST (S _m) and LFT (F _m) in order to pre-cast concrete members The quantity Q of the production information data of the precast concrete member generated by integrating the same members is calculated as shown in the following equation (12).

FIG. 4 is a table showing data and production scheduling grouped by the similar departments according to the similar member groups in the production schedule planning apparatus of the precast concrete member according to an embodiment of the present invention.

The similar-member-group-by-group-basis calculating unit 130 calculates a production schedule for each similar member group, which is calculated in consideration of the number of members included in the production information data of the precast concrete members rearranged in the member- The member sorting unit 120 groups the sorted data.

That is, similar to member groups calculation unit 130 to calculate the similarity member groups LST and LFT, more is the quantity Q _I-specific member, LST (S _m) and LFT (F _m) similar to each member the group LST using (S _g ) and LFT (F _g ). In the group of similar members, each member takes the production method in order of the number of members, so the production schedule of consecutive members is considered.

Each LST (S _g _{, i} ) for n members in the similar member group is calculated according to Equation (13), and the smallest value among the LSTs (S _g _{, i} ) LST (S _g ).

Therefore, the LST (S _g ) for each similar member group is calculated by the following equations (13) to (14), and the LFT (F _g ) for each similar member group is calculated by the following equation (15).

Here, i represents the order of the members in the group, and Q _I represents the number of members.

If LST (S _g _{, i} ) for each similar member group is smaller than 1, it means that more than two molds are required to produce members corresponding to n lists in the group. In this case, each group from the first member LST (S _{g, i)} is less than the member 1 (i-th element), the upper member (i -1-th element), LST (S _g) and LFT (F on the member to the group of _g ) and the LST (S _g ) and the LFT (F _g ) of the member group which is the first member of the member (i-th member) are repeatedly calculated by the above equations (13) to LST (S _g ) and LFT (F _g ) lists.

Therefore, similar members groups calculation unit 130 by similar member group LST (S _g) and LFT (F _g), a new group number, quantity (Q _g) member per group, as shown in Figure 4 when the calculation is completed, LST (S _g ), and LFT (F _g ₎ . In the case of a group requiring two or more molds, a new group number may be different from the initial group number since a list for each group is additionally created. The quantity Q _{g for each} group is calculated using the following equation (16).

5 is a view illustrating a process in which a mold combination is calculated by a mold combination calculation unit in a production schedule planning apparatus of a precast concrete member according to an embodiment of the present invention. FIG. 7 is a diagram illustrating a process of calculating a mold combination according to an additional allocation method when calculating a mold combination in a production scheduling apparatus for a precast concrete member. FIG. FIG. 4 is a diagram illustrating a process of calculating a mold combination according to an insertion assignment method when calculating a mold combination.

The mold combination calculating unit 140 calculates the mold combination as shown in FIG. 5 in consideration of the production schedule for each group included in the production information data of the precast concrete members grouped by the similar member group classifying unit 130.

At this time, if the number of similar member groups is less than the set number, the mold combination calculating unit 140 assigns or adds a mold to all the cases according to the number of similar member groups, considering the number of members and the production deadline A mold combination is calculated by an insertion assignment method in which similar member groups are sequentially assigned to a mold when the number of similar member groups is equal to or greater than the set number.

In detail, the number N of LSTs and LFT lists for each similar member group is checked by referring to the production information data of the concrete members grouped by the similar member group classifying unit 130. If N is less than the set number, And calculates the mold combination by the additional allocation method. If the number of the mold combinations is greater than the set number, the mold combination is calculated using the insertion allocation method.

In this case, the additional allocation method is a method of assigning the group to the mold while adding the number of molds in consideration of the number of members and the date of delivery by the similar member group, and assigning the group to the mold is to produce members in the group using the mold It means planning. Therefore, since the mold use plan is derived differently according to the order of the input similar member groups, the total number N of group combinations is generated for N similar member groups to calculate the mold combination, Can be established.

Referring to FIG. 6, an additional allocation method will be described as follows.

When the production of the first member per mold is fixed to 1 day, first group 1 is assigned to mold 1. For example, the production completion date of 5 members in Group 1 is 5 days, and the LFT of Group 1 is 7 days, so the production deadline is observed. Then, the availability of the mold 1 is checked to determine the production schedule of the group 2 member. The period of time from the production of the members of the group 1 by the mold 1 to the completion of the production of the group 2 members is determined by the group 17 days including the number of one member, the number of members of group 2, and the resetting period of one day. This is smaller than the LFT of Group 2, which is 18 days. Therefore, it is planned to produce group 1 and mold 2 after Group 1 is assigned to Mold 1 because the use of Mold 1 complies with the production deadlines of Groups 1 and 2. Next, the group 3 member is also checked to see if it is possible to produce the first mold. The date of completion of the production of Group 3 members by resetting the molds after Group 1 and Group 2 member production is 25 days. However, since it exceeds 11 days which is the LFT of group 3, since the member of group 3 can not be produced by using the mold 1, the number of molds is added and group 3 is assigned to the mold 2. Group 4 is also assigned to mold 3 by the same method and finally the number of required molds for the production of members of groups 1 to 4 is calculated to be three.

In other words, the additional allocation method has an effect of minimizing the amount of molds consumed more than when sequential allocation is attempted, by trying the order of the groups to be input when calculating the mode combination, with respect to all the cases, not sequential.

However, when considering the number of N! Cases, the calculation time of the mold combination rapidly increases. Therefore, when N is equal to or greater than the set number (for example, 10), the insert allocation method is used.

In this case, the insert allocation method can reduce the time required for calculating the mold combination by calculating the mold combination by assigning the similar member group to the mold only one time in a sequential manner. When a new group is assigned to the mold, the current group is inserted into the previous schedule after the production schedule of the existing group in the order of the group number close to the next schedule of the group in which the production schedule is already planned in the corresponding mold, It is possible to calculate a mold combination capable of minimizing the number of molds within a range in which the production deadline is complied with. In addition, ease of mold resetting is ensured by establishing a production schedule for a new group with priority given to the production schedule of the adjacent group of similar members.

Referring to FIG. 7, the insertion assignment method will be described as follows.

First, group 1 is assigned to mold # 1, and group # 2 is assigned to mold # 1, as in the case of the additional allocation method, and it is planned to be produced after group # 1. Then, it is confirmed that group 3 is assignable after group 2 of mold 1. In this case, it is judged that the production completion date exceeds 25 days, which means that the LFT of group 3 exceeds 11 days, and group 3 is transferred to group 2 To confirm whether or not the mold can be used. At this time, not only the group 3 but also the production deadline of the group 2 in which the production schedule is planned after the group 3 is also checked. As a result, if LFT of group 3 is not matched with LFT of group 2, and LFT of group 2 is not matched, and group 3 is inserted before group 1, the production schedule will not conform to planned LFTs of group 1 and group 2 . Therefore, the number of molds is added to assign the group 3 to the second mold. And Group 4 is not able to produce after Group 3 of Mold 2, but when it is produced before Group 3, it meets the production deadlines of Group 3 and 4, so it is calculated to produce Group 3 before Group 3 of Mold 2 .

8 is a diagram illustrating a process of calculating an optimum mold combination according to a priority order of each indicator in a production schedule planning device of a precast concrete member according to an embodiment of the present invention.

The mold combination determining unit 150 determines an optimum mold combination that matches predetermined conditions among the calculated mold combinations.

At this time, the predetermined condition may include the mold number, mold resetting easiness index and production completion date of each mold combination calculated.

Here, the required number of mold means the number of molds required to produce the entire pre-cast concrete member inputted, and the production completion date means the time when all the members are manufactured according to the combination of the molds. The mold resetting easiness index is an index for evaluating easiness of molding reset which is different depending on the production sequence of the group when producing two or more similar member group members with one mold.

In this case, there are reverse score and positive one-way score as mold resetting easiness index, reverse score is calculated by giving a positive score according to the variation of the similar member group number when resetting from small member to large member, The one-way score is calculated by giving a score for the resetting convenience when resetting one group from a large member to a small member. Therefore, the reverse score is low, and the positive one-way score is high and the ease of mold resetting is high.

Therefore, the mold combination determining unit 150 derives the optimum mold combination according to the number of required molds, mold resetting ease index, and production completion date per mold combination.

That is, the final mold combination is adopted according to preference, and the member production scheduling plan for each mold is established in the order of the similar member groups allocated to the respective molds, thereby completing the member production scheduling for each member as shown in FIG.

As described above, according to the embodiment of the present invention, the production scheduling apparatus for a precast concrete member is provided with a function of allowing a precise concrete member to be produced on the basis of order, It is effective.

In addition, it is possible to establish a production scheduling plan for members that can efficiently use the mold within the range of ease of modification and resetting of the mold, and in compliance with the quantity of each member and the production deadline, The pre-cast concrete method can be more activated.

FIG. 9 is a flowchart illustrating an operational flow of a production scheduling method of a precast concrete member according to an embodiment of the present invention. FIG. 10 is a flowchart illustrating a production schedule planning of a precast concrete member according to an embodiment of the present invention. The detailed operation of the present invention will be described with reference to the flowchart of FIG.

First, the production information data of the precast concrete member is received and aligned (S100).

In this case, it is possible to calculate the production deadline for each member from the production allowance date, which means the number of days from the production start date for starting the member production for the first time to the production deadline, A detailed description of the following equations will be omitted.

Accordingly, in step S100, the production information data of the precast concrete member is generated by arranging the group, the member, the quantity, and the production deadline in this order.

In step S200, the production information data of the precast concrete member is rearranged according to the production schedule of each member, which is calculated in consideration of the quantity of each member and the production deadline included in the sorted data (S200).

At this time, the production schedule for each member is calculated by the LST (S _m ) for each member estimated by the above-described Formula (2) and the LFT (F _m ) for each member calculated by Formula (3) In step S200, the group, the member, the quantity, the LST and the LFT are rearranged with reference to Equations 2 to 12 described above.

In step S200, the reordered data is grouped in step S200 according to the production schedule for each similar member group, which is calculated in consideration of the number of members included in the reordered data and the production schedule for each member (S300).

That is, in step S300, LST and LFT for each similar member group are calculated. As described above, the new group number, the member quantity Q _g , and the LST (S _g ), And LFT (F _g ). In the case of a group requiring two or more molds, a new group number may be different from the initial group number since a list for each group is additionally created. The quantity Q _g of each group is calculated by using the above-mentioned equation (16).

Then, in step S300, the mold combination is calculated in consideration of the production schedule for each group included in the grouped data (S400).

In this case, if the number of similar member groups is less than the set number, step S400 is performed to determine the number of similar member groups and the number of similar member groups, The mold combination is calculated (S420).

Specifically, N! Group permutations are generated for N number of similar member groups (S421).

Then, additional allocation for N! Group permutations is sequentially performed (S422).

Then, the first similar member group is assigned to the mold (S423).

Then, the group number is added (S424).

At this time, it is determined whether there is a group to be allocated (S425), and if there is a group, the group is added after the group already assigned to each mold (S426).

Then, the LFT is compared with the production completion date of the group assigned to the mold (S427). If the production completion date of the group assigned to the mold passes the LFT, the mold is added to assign the group (S428).

If the absence production completion date of the group assigned to the mold does not pass the LFT, the group number is allocated to the mold, and steps S424 to S426 are repeated until there is no group to be allocated.

If it is determined in step S400 that the number of similar member groups is equal to or larger than the preset number, the mold combination is calculated by the insertion assignment method in which similar member groups are sequentially assigned to the molds (S430).

In detail, the first similar member group is assigned to the mold (S431).

Then, it is determined whether a group to be further allocated exists (S432), and if there is a group, the position of the group before the group is identified (S433).

Then, the group is inserted after or before the group of the preceding number (S434).

Then, the LFT is compared with the production completion date of the group assigned to the mold (S435). If the production completion date of the group assigned to the mold passes the LFT, the number of the inserted group is deleted (S436).

Then, the mold is added and the corresponding group is allocated (S437).

If the production completion date of the group assigned to the mold does not pass the LFT, the group number is assigned to the corresponding mold, and steps S432 to S434 are repeated until there is no group to be allocated.

Finally, in step S500, the optimal mold combination matching the predetermined condition is determined from the mold combination calculated in step S400.

In other words, the final mold combination is adopted according to preference, and the member production scheduling for each mold is established in the order of the similar member groups allocated to the respective molds, thereby completing the member production scheduling for each individual.

As described above, according to one embodiment of the present invention, the production scheduling method of a precast concrete member is a method of making a precast concrete member to be produced on the basis of a order, It is effective.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the following claims.

110: data collecting unit 120:
130: Acid according to similar member group 140: Mold combination calculation unit
150: mold combination determination unit

Claims

An apparatus for establishing an optimal production schedule of precast concrete members having a predetermined assembly schedule,
A data collecting unit for receiving and arranging production information data of the precast concrete member;
A member-by-member rearrangement unit for rearranging the data according to a member production schedule calculated in consideration of the number of members included in the sorted data and the production deadlines for each member;
A similar member group grouping unit for grouping the reordered data according to a production schedule for each group of similar members, which is calculated in consideration of the number of members included in the reordered data and the production schedule for each member;
A mold combination calculating unit for calculating a mold combination in consideration of a group production schedule included in the grouped data; And
And a mold combination determining unit for determining an optimum mold combination that meets predetermined conditions among the calculated mold combinations.

The method according to claim 1,
Wherein the production information data of the precast concrete member comprises:
A production schedule of the precast concrete member including at least one of the group, the member, the quantity per member, and the production deadline for each member.

The method according to claim 1,
Wherein the mold-
If the number of the similar member groups is less than the set number, the mold combination is performed by the additional allocation method of assigning or adding the mold in consideration of the number of members and the production deadline for each similar member group in all the cases according to the number of similar member groups. Respectively,
Wherein the mold combination is calculated by an insert allocation method in which similar member groups are sequentially assigned to a mold when the number of similar member groups is equal to or greater than the set number.

The method according to claim 1,
The production deadline is,
A production scheduling apparatus for a precast concrete member that calculates a production deadline for each member by the following equation:

5. The method of claim 4,
The production schedule for each member is as follows.
A production schedule scheduling apparatus for precast concrete members that calculates late production start date and late production end date for each member according to the following equation:

6. The method of claim 5,
The production schedule for each of the similar member groups,
A production scheduling device for precast concrete members that calculates late production start date and late production end date for each similar member group by the following equation:

The method according to claim 1,
The calculated mold combination may include:
A mold resetting easiness index, and a production completion date of each pre-cast concrete member.

8. The method of claim 7,
The mold combination determination unit determines,
Wherein the optimum mold combination is determined in consideration of at least one of the number of required molds, the ease of mold resetting, and the priority of the production completion date for each combination of molds.

9. The method of claim 8,
Wherein the mold resetting ease indicator comprises:
A reverse score in which a positive score is given according to a change amount of a similar member group when a resetting operation is performed from a small member to a large member and a score for a resetting convenience when resetting one group to a small member in a large member And a positive one-way score,
Wherein the mold resetting easiness index is higher as the reverse score is lower and the positive one-way score is higher.

A method for establishing an optimal production schedule of precast concrete members having a predetermined assembly schedule,
A data collecting step of receiving and arranging production information data of the precast concrete member;
A step of rearranging the data according to a member production schedule calculated in consideration of the number of members included in the sorted data and the production deadline for each member;
Grouping the reordering data according to a production schedule for each group of similar members, which is calculated in consideration of the number of members included in the reordered data and the production schedule for each member;
A mold combination calculating step of calculating a mold combination in consideration of a group production schedule included in the grouped data; And
And a mold combination determining step of determining an optimal mold combination corresponding to predetermined conditions in the calculated mold combination.

11. The method of claim 10,
Wherein the data collection step comprises:
Wherein the production information data of the precast concrete member including at least one of a group, a member, a quantity per member, and a production deadline for each member is received and aligned.

11. The method of claim 10,
The mold combination calculating step may include:
If the number of the similar member groups is less than the set number, the mold combination is performed by an additional allocation method in which the number of all the members according to the number of similar member groups is allocated or added considering the number of members and the production deadline of each similar member group. Respectively,
Wherein the mold combination is calculated by an insert allocation method in which similar member groups are sequentially assigned to a mold when the number of similar member groups is equal to or greater than the set number.

11. The method of claim 10,
The production deadline is,
A method for establishing a production schedule of a precast concrete member to calculate a production deadline for each member according to the following equation:

Where F is the production deadline for each member, D _m is the date of mat placement, D _f is the production margin date, and D _s is the production start date.

14. The method of claim 13,
The production schedule for each member is as follows.
Method of scheduling the production of precast concrete members to calculate late production start date and late production end date for each member according to the following equation:

15. The method of claim 14,
The production schedule for each of the similar member groups,
A method for establishing a production schedule of precast concrete members to calculate late production start date and late production end date for each similar member group by the following equation:

11. The method of claim 10,
The calculated mold combination may include:
Wherein the pre-cast concrete member includes at least one of a required number of molds, a mold resetting easiness index, and a production completion date.

17. The method of claim 16,
The mold combination determination step may include:
A method for establishing a production schedule of a precast concrete member that determines an optimum mold combination that meets predetermined conditions in consideration of at least one of a required number of molds, a mold resetting easiness index, and a production completion date.

18. The method of claim 17,
Wherein the mold resetting ease indicator comprises:
A reverse score in which a positive score is given according to a change amount of a similar member group when a resetting operation is performed from a small member to a large member and a score for a resetting convenience when resetting one group to a small member in a large member And a positive one-way score,
Wherein the mold resetting easiness index is higher as the reverse score is lower and the positive one-way score is higher.