JP5442524B2 - Schedule creation method, schedule creation program, and schedule creation device - Google Patents

Description

  The present invention relates to a schedule creation method, a schedule creation program, and a schedule creation apparatus that preliminarily produce an intermediate product and allocate an order to the intermediate product.

  2. Description of the Related Art Conventionally, in a machining factory, there is an automatic processing facility that can automatically perform work after an operator (or an operator) prepares a processed part in the processing facility. When such an automatic processing facility exists, an operator can leave the automatic processing facility during the automatic processing and perform a processing operation with another facility. As described above, when creating a schedule reflecting “multi-device holding” in which different facilities are held at the same time, the creation of the schedule is more complicated as compared with the case where it is not. In addition, when creating a schedule, it is required to create a schedule in consideration of prevention of delays in delivery time, suppression of work personnel, etc., in addition to having multiple units.

For example, as shown in Patent Document 1, a method for creating a schedule that does not compete for work time by reflecting the manual work time of a worker who operates equipment and the automatic work time that the worker does not need to operate is proposed. Has been. In the technique shown in Patent Document 1, in-process working means for defining what manual work is in each process, information on products in charge of each worker (for example, the person in charge A is in charge of manufacturing products A and C). ), And a person in charge of product definition means that defines the scheduled time information of the person in charge of the worker. Based on the information defined in the information, a schedule that prevents not only competition among product person in charge devices but also between workers is prepared. Can be created.

JP 2005-309938 A

  However, in the prior art as shown in Patent Document 1, in a production line with characteristics of workers, which can be used for each worker, if you want to create a schedule with some workers reduced, Since there is no mechanism for automatically deciding whether to reduce the number of workers, a schedule is created with all combinations of selecting workers for the number of workers to be reduced, and the schedule planner compares them to determine the workers to be reduced. There is a need to. For example, if you want to reduce one out of all three workers (A, B, C), there are three ways to remove A, B, and C. Create a schedule using conventional technology. Then, it is necessary for the schedule planner to determine a good evaluation from the three created schedules, and there is a problem that the schedule cannot be created efficiently.

  Therefore, the problem to be solved by the present invention is a schedule creation method and a schedule capable of creating a schedule efficiently and quickly while reducing orders delayed in delivery as much as possible when creating a schedule by a set worker. A creation program and a schedule creation device are provided.

The schedule creation method according to the present invention is a schedule creation method for creating an order schedule for a production line that manufactures a product in a plurality of processes, and the processing executed by the computing unit of the computer is an ordered product. And an order information storage step for registering the delivery date as information related to the order, a manufacturing route information storage step for registering a manufacturing route as a series of a plurality of processes for manufacturing a product for each product as information related to the manufacturing route, For the process, a processing time information storage step for registering the total work time required from the start to completion as processing time information, equipment that can be used in the process, and a time zone in which each equipment can be used, Register the equipment information storage step to be registered as equipment-related information and the personnel to create the schedule. And manpower information storage step as the information about the work personnel, for a plurality of workers, and workers facilities correspondence information storage step of registering the equipment that can each worker is used as information about the worker equipment corresponding, each work The worker time zone information storage step for registering the time zone in which the worker can work as information related to the worker time zone, and all the combination patterns of workers satisfying the worker, the total of each step of each order. The work time is loaded as a load on the equipment available time in the process and the worker available to use the equipment in the available time zone of the equipment and the available time zone of the worker, Load pile calculation step for outputting load pile results for each combination pattern of workers and load pile results for each combination pattern of workers Therefore, in the worker pattern determination step for determining one combination pattern of the worker with the best evaluation, and the determined combination pattern of the worker, the total work time of each step of each order is A schedule creation step of creating a schedule by assigning the equipment that can be used in the process and the worker who can use the equipment to a time zone in which the equipment can be used and a time zone in which the worker can work; It is characterized by having.

The schedule creation program according to the present invention is a schedule creation program for creating an order schedule for a production line that manufactures a product in a plurality of processes, and the order information for registering the ordered product and delivery date as information related to the order. A storage step, a manufacturing route information storage step for registering a manufacturing route as a series of a plurality of processes for manufacturing a product for each product as information on the manufacturing route, and from the start to the completion of each process A processing time information storage step for registering the required total work time as information about the processing time; a facility information storage step for registering equipment usable in the process and a time zone in which each equipment can be used as information about the equipment; , Information on the workforce to register the workforce at the time of creating the schedule And manpower information storing step, for a plurality of workers, and workers facilities correspondence information storage step of registering the equipment as the information about the worker equipment corresponds capable each worker to use, which can work each worker time zone, and worker time zone information storage step of registering as information on worker hours for all workers combination pattern satisfying the manpower, the said total working time of each process for each order, respectively For each worker combination pattern, the equipment that can be used in the process and the worker who can use the equipment are loaded as loads in the available time zone of the equipment and the available time zone of the worker. The best evaluation is based on the load pile calculation step that outputs the load pile result and the load pile result for each combination pattern of workers. A worker pattern determination step for determining one combination pattern of workers, and the facility that can use the total work time of each process of each order in the process, with the determined worker pattern. A schedule creation step for creating a schedule for the worker who can use the equipment by assigning the available time zone of the equipment and the time zone in which the worker can work; It is characterized in that it is read out by a unit to execute the processing of each step.

A schedule creation device according to the present invention is a schedule creation device for creating a schedule for an order using a calculation unit of a computer for a production line that manufactures a product in a plurality of processes. About the order information storage unit to be registered as information related to the order, the manufacturing route information storage unit to register the manufacturing route as a series of a plurality of steps for manufacturing a product for each product as information about the manufacturing route, and each of the steps, Information related to equipment including a processing time information storage unit that registers the total work time required from start to completion as information relating to processing time, equipment that can be used in the process, and time zones in which each equipment can be used As the information on the equipment information storage unit to be registered and the work personnel to register the work personnel at the time of creating the schedule. A storage unit for a plurality of workers, and workers facilities correspondence information storage unit for registering the equipment that can each worker is used as information about the worker equipment corresponding, each worker the possible time zones work , a worker time zone information storage unit to be registered as the information about the worker hours for all workers combination pattern satisfying the manpower, the said total working time of each process for each order, respectively, this step The equipment that can be used in the facility and the worker who can use the equipment are loaded as a load in the available time zone of the equipment and the time in which the worker can work. Based on the load pile calculation unit that outputs the result and the load pile result for each worker combination pattern, one worker combination pattern that is evaluated best is determined. With the worker pattern determination unit and the determined combination pattern of the workers, the total work time of each process of each order is the facility that can be used in the process and the worker that can use the facility. And a schedule creation unit that creates a schedule by assigning the available time zone of the facility and the available time zone of the worker.

According to this, by selecting one worker combination pattern automatically with a set worker from a plurality of workers, the worker combination pattern is determined on a trial and error basis, and the schedule is determined. Since there is no need to create a schedule, it is possible to create a schedule efficiently and quickly. In addition, by setting a small number of workers, it is possible to create a schedule with fewer workers.
Here, the total work time of each process of each order is determined for the equipment that can be used in that process and the workers who can use that equipment. When there are multiple facilities that can be used in the process when loading as load in the time zone, or when there are multiple workers who can use the facility, there is a lot of remaining load on each facility or each worker immediately before loading the load Loads shall be loaded in order. Furthermore, when the remaining loads are the same, the names of each facility or each worker are piled up in ascending order. In addition, when there are a plurality of facilities that can be used in the process or when there are a plurality of workers that can use the facilities, the selection criterion is not limited to this, and can be set as appropriate.
In addition, the total work time of each process of each order is set to the time zone that the equipment can be used and the time that the worker can work for the equipment that can be used in that process and the workers who can use that equipment. When there are multiple facilities that can be used in the process or when there are multiple workers who can use the facilities, the total work time of each process is allocated in the order of the name of each facility or each worker. And In addition, when there are a plurality of facilities that can be used in the process or when there are a plurality of workers that can use the facilities, the selection criterion is not limited to this, and can be set as appropriate.

  Here, in the schedule creation method and the schedule creation program according to the present invention, in the processing time information storage step, the worker working time that the worker needs to work on the equipment in the total work time for each process is determined. Further registered as information on processing time, the load pile calculation step, for all combination patterns of workers satisfying the worker, the total work time and the worker work time of each step of each order, For each of the equipment that can be used in the process and the worker who can use the equipment, load the available time zone of the equipment and the available time zone of the worker as a load. The schedule may be created in consideration of the worker working time.

  Further, in the schedule creation device according to the present invention, the processing time information storage unit includes, as information regarding processing time, a worker working time that the worker needs to work on the equipment in the total working time for each process. Further, the load pile calculation unit registers the total work time and the worker work time of each step of each order for each of the combination patterns of the workers that satisfy the worker, The equipment that can be used and the worker who can use the equipment are loaded as loads in the available time zone of the equipment and the available time zone of the worker. You can create a schedule taking time into account.

  According to this, the work hours that the workers need to work on the equipment in each process are reflected in the schedule, and the time for which automatic processing is performed at a certain facility is different from the time when the worker leaves the automatic processing facility. It is possible to create a schedule that takes into account the handling of equipment, such as performing processing operations with other equipment.

The schedule creation method and the schedule creation program according to the present invention further include a period information storage step for registering a unit of a period for loading a load as information related to a period, and the facility information storage step is a unit of the period. In the operator time zone information storage step, the worker time zone information storage step registers the time zone in which each worker can work in the unit of the period, and the load pile calculation step includes the period For each unit, the total work time of each process of each order can be used in the same period for the facility that can be used in the process and the worker who can use the facility, respectively. The schedule creation step calculates the total work time of each process of each order for each unit of the period. Assign the equipment that can be used in the process and the worker who can use the equipment to the available time zone of the equipment and the available time zone of the worker within the same period, and You can create it.

The schedule creation device according to the present invention further includes a period information storage unit that registers a unit of a period for loading a load as information related to a period, and the facility information storage unit can use each facility in the unit of the period. The worker time zone information storage unit registers a time zone in which each worker can work in the unit of the period, and the load pile calculation unit, for each unit of the period, The total work time of each step of each order is the time period and the work available for the equipment within the same period for the equipment that can be used in the process and the worker that can use the equipment, respectively. The schedule creation unit uses the equipment that can use the total work time of each process of each order for each unit of the period and the equipment that can be used in the process. Against the worker who can Te, and assigned to a working time zone of the available time zone of the equipment and the personnel of the same said period of time, may be to create a schedule.

  According to this, by setting the unit of the period to be large, it is possible to quickly calculate load pile and schedule creation. On the other hand, by setting the unit of the period to be small, the accuracy of calculation of the load pile is improved, so that it is possible to appropriately evaluate the combination pattern of workers and to create a more accurate schedule.

  Further, in the schedule creation method and the schedule creation program according to the present invention, the load pile calculation step is loaded as a load in order from the first step of the manufacturing route of the order in order of the order with early delivery date, and the schedule creation step includes The order may be assigned in the order of early delivery, starting from the first step of the manufacturing route of the order.

  In the schedule creation device according to the present invention, the load pile calculation unit is loaded as a load in the order of early delivery, starting from the first step of the manufacturing route of the order, and the schedule creation unit In order, it may be assigned in order from the first step of the manufacturing route of the order.

  According to this, it is possible to create a schedule with less delay in delivery of each order.

  Further, in the schedule creation method and the schedule creation program according to the present invention, the worker pattern determination step is loaded with a delay from the delivery date for each order based on a load pile result for each combination pattern of workers. The total sum of the load amounts may be evaluated, and the combination pattern of the worker having the smallest total sum may be determined as the combination pattern of the worker having the best evaluation.

  In the schedule creation device according to the present invention, the worker pattern determination unit calculates the sum of the amount of load accumulated after the delivery date for each order based on the load pile result for each combination pattern of workers. Evaluation may be made and the combination pattern of the worker having the smallest sum is determined as the combination pattern of the worker having the best evaluation.

  According to this, it is possible to create a schedule with less delay in delivery of each order.

  The schedule creation program according to the present invention can be recorded and distributed on a fixed recording medium such as a removable recording medium or a hard disk, or can be distributed via a communication network such as the Internet by wired or wireless telecommunication means. Is possible.

  The schedule creation method, schedule creation program, and schedule creation apparatus of the present invention can create a schedule with fewer workers, create a schedule that reduces orders that are delayed in delivery as much as possible, and create a schedule efficiently and quickly. .

It is a block diagram which shows the process from the raw material of the production line made into object in this embodiment to a product. It is a figure which shows the relationship between the process made into object by this embodiment, and a worker's work. It is a block diagram of the schedule creation apparatus which concerns on this embodiment. It is the flowchart explaining the procedure of the process of the schedule creation method which concerns on this embodiment. It is a Gantt chart which shows the schedule result which allocated each process of order number RC1 with the worker pattern of Y and Z. It is a Gantt chart which shows the schedule result which allocated each process of order number RC2 by the worker pattern of Y and Z. It is a Gantt chart which shows the schedule result which allocated each process of order number RC3 by the worker pattern of Y and Z. It is a Gantt chart which shows the schedule result which allocated each process of all orders with the worker pattern of X and Z. It is a Gantt chart which shows the schedule result which allocated each process of all orders with the worker pattern of X and Y.

  Hereinafter, a form for implementing a schedule creation method, a schedule creation program, and a schedule creation device according to the present invention will be described with reference to a specific example with reference to the drawings. In addition, what is demonstrated below is only what was illustrated and does not show the application limit of the schedule creation method and schedule creation program which concern on this invention, and a schedule creation apparatus. That is, the schedule creation method, the schedule creation program, and the schedule creation device according to the present invention are not limited to the following embodiments, and various modifications are possible as long as they are described in the claims. .

  FIG. 1 shows a process from a material of a production line as a target in this embodiment to a product. As shown in FIG. 1, the production line from the raw material to the product is composed of “A process”, “B process”, and “C process”, and there are a plurality of facilities that can be used in each process. And the product in the middle of manufacture and the completed product are temporarily stored as needed.

  Each process includes a process in which an operator always works on the equipment used in the process, and a process in which the equipment automatically works in the middle if the worker works on the equipment only at the beginning and end of the process. For example, as shown in FIG. 2 which shows the relationship between the target process in this embodiment and the work of the worker, the A process and the C process always require a person to work on the equipment, but the B process is If an operator works on the equipment only at the beginning and end of the process, the equipment can work automatically during the process.

  In the present embodiment, it is assumed that there is no lead time from completion of the product to shipment. In addition, the time for a product in production to move between facilities is negligibly small.

  First, the schedule creation apparatus according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram of the schedule creation device according to the present embodiment. The schedule creation device 1 includes an arithmetic unit, a storage unit, an input unit, and an output unit, and is mounted on a computer. Here, each part (calculation part, memory | storage part, input part, and output part) of the schedule preparation apparatus 1 shown by FIG. 3 is comprised by computers, such as a general purpose personal computer. Such a computer stores hardware such as a CPU, ROM, RAM, hard disk, and CD-ROM drive, and the hard disk stores a program (this program is recorded on a removable storage medium). Can be installed on a variety of computers). And the above-mentioned each part is constructed | assembled by combining these hardware and software.

  As shown in FIG. 3, the schedule creation device 1 includes a load pile calculation unit 11, a worker pattern determination unit 12, a schedule creation unit 13, a result output unit 14, an order information storage unit 21, and equipment information storage. Unit 22, manufacturing route information storage unit 23, processing time information storage unit 24, worker time zone information storage unit 25, worker equipment correspondence information storage unit 26, worker information storage unit 27, period information And a storage unit 28.

  The order information storage unit 21 is for registering and storing an order number, a product, and a delivery date for each order as information relating to the order.

  The facility information storage unit 22 is registered from the outside for storing the facility that can be used for each process and the available time zone of the facility for each period of the period information storage unit 28, which will be described later, as information about the facility. Is.

  The manufacturing route information storage unit 23 is for externally registering and storing, as information relating to the manufacturing route, a process that passes when manufacturing the product for each product. Here, in the present embodiment, the lead time between the processes is assumed to be negligibly small, but there is an inter-process time (that is, a lead time between processes) which is a minimum time required between the processes. In this case, it may be set.

  The processing time information storage unit 24, as information on processing time, requires the total work time required from the start to completion for each process, and the worker of the total work time needs to work on the equipment. This is for registering and storing the worker work time from the outside.

  The worker time zone information storage unit 25 stores, as information about the worker time zone, a time zone in which the worker can work for each period in the period information storage unit 28 described later is registered and stored for each worker. Is for.

  The worker equipment correspondence information storage unit 26 is for registering and storing the equipment that can be used from the outside for each worker as information relating to the worker equipment correspondence.

  The work personnel information storage unit 27 is for registering and storing work personnel when creating a schedule from the outside as information on the work personnel.

  The period information storage unit 28 is for externally registering and storing a unit of a period for accumulating a load as information relating to the period.

  Here, the order information storage unit 21, the equipment information storage unit 22, the manufacturing route information storage unit 23, the processing time information storage unit 24, the worker time zone information storage unit 25, the worker facility correspondence information storage unit 26, and the work personnel information. In the storage unit 27 and the period information storage unit 28, information registered from the outside is input from an input unit (keyboard or the like) (not shown) at the start of schedule creation, or recorded and given to a removable storage medium, or wired. Alternatively, it is given via a communication network such as the Internet by wireless electric communication means and stored in a storage device, an auxiliary storage device or the like.

  The load pile calculation unit 11 is a combination pattern of all workers satisfying the worker stored in the worker information storage unit 27 described above, and the order described above for each period unit stored in the period information storage unit 28 described above. Based on the information stored in the information storage unit 21, the equipment information storage unit 22, the manufacturing route information storage unit 23, the processing time information storage unit 24, the worker time zone information storage unit 25, and the worker facility correspondence information storage unit 26. Thus, the load is the processing time of each process for each order, and the load is accumulated on each facility and worker.

  Specifically, the load pile calculation unit 11 is a combination pattern of all workers satisfying the worker (hereinafter, abbreviated as “worker pattern”), in the order of early delivery date, In order from the first step, the total work time and the worker work time of each step are the available time of the equipment within the same period for the equipment that can be used in that process and the worker who can use the equipment, respectively. It is loaded as a load in the time zone when the belt and workers can work. Here, when there are a plurality of facilities that can be used in the process or when there are a plurality of workers who can use the facilities, the loads are loaded in the descending order of the remaining loads of each facility or each worker immediately before the load is loaded. Furthermore, when the remaining loads are the same, the names of each facility or each worker are piled up in ascending order. In addition, when there are a plurality of facilities that can be used in the process or when there are a plurality of workers that can use the facilities, the selection criterion is not limited to this, and can be set as appropriate.

  Here, when loading the load, the load is accumulated in order from the first step on a period basis from the start of schedule creation, and the load is continuously applied between one step and the next step without taking time. It shall be piled up. When there is an inter-process time, when loading a load, it is assumed that an inter-process time is left between a certain process and the next process before loading. Also, when loading the labor hours of each process to workers who can use the equipment that can be used in that process, the time other than the worker hours of the total work time is not considered. In addition, it is assumed that only the worker work time is continuously accumulated as a load in a workable time zone. Furthermore, when loading the total work time and worker work time of a process as a load, either the total work time or the worker work time of that process is used in that process within the period during which the load is to be loaded. If it exceeds the available time zone of the equipment that can be used or the work time zone of the worker who can use the equipment, the available time zone of the equipment that can be used in the process within the period of loading and the Load a part of the time that can be loaded into the workable time zone of the worker who can use the equipment as a load, and use the excess time as the available time zone of the same equipment and the same worker within the next period It will be loaded as a load during the work time.

  As shown in FIG. 3, the load pile result calculated by the load pile calculation unit 11 for each worker pattern is input to the worker pattern determination unit 12 as the load pile result of each worker pattern.

  The worker pattern determination unit 12 is for determining one worker pattern with the best evaluation based on the load pile result of each worker pattern input from the load pile calculation unit 11 described above. Specifically, the total load (time) accumulated after the delivery date of the order is evaluated, and the worker pattern with the smallest total load is determined as the best worker pattern. Here, if there are multiple worker patterns in which the total load accumulated after the order delivery date is 0 (there is no total load accumulated after the order delivery date), the period of the pile result is the longest. The worker pattern that ends early is determined as the best worker pattern. In addition, when there are multiple worker patterns that end in the earliest period, the total load (time) accumulated in the last period of the mountain result is evaluated, and the worker pattern with the smallest total load is evaluated. Is determined as the best worker pattern.

  As shown in FIG. 3, the result of the best worker pattern determined by the worker pattern determination unit 12 is input to the schedule creation unit 13 as the best worker pattern.

  The schedule creation unit 13 creates a schedule based on the best worker pattern input from the worker pattern determination unit 12. Specifically, the schedule creation unit 13 is the best worker pattern input from the worker pattern determination unit 12 and the order information storage unit 21 described above for each unit of the period stored in the period information storage unit 28 described above. Based on the information stored in the facility information storage unit 22, the manufacturing route information storage unit 23, the processing time information storage unit 24, the worker time zone information storage unit 25, and the worker facility correspondence information storage unit 26, the delivery date In order from the earliest order, in order from the first process of the manufacturing route of the order, the total work time of each process is determined, the available time zone of the equipment that can be used in the process, and the time that the worker who can use the equipment can work. Allocate to the band and create a schedule. Here, if there are multiple facilities that can be used in the process or there are multiple workers who can use the facilities, the total work time of each process shall be assigned in the order of the name of each facility or each worker. . In addition, when there are a plurality of facilities that can be used in the process or when there are a plurality of workers that can use the facilities, the selection criterion is not limited to this, and can be set as appropriate.

  Here, when creating a schedule, the total work time of each process is allocated in order from the first process in units of period from the start of schedule creation, and there is a time between one process and the next process. It is assumed that they will continue to be assigned. In addition, when the time between processes exists, it shall allocate after leaving the time between processes between a certain process and the following process. Further, when creating a schedule, it is assigned in consideration of the worker work time and the time other than the worker work time in the total work time. That is, the total work time and the worker work time of each process of the order to be assigned thereafter can be assigned to a time other than the worker work time in the total work time of a certain process of an order.

  The result output unit 14 is for outputting the schedule created by the schedule creation unit 13 as a calculation result in the schedule creation device 1 to an output unit such as a display or a printer (not shown).

Next, the process procedure of the schedule creation method according to the present embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating the processing procedure of the schedule creation method according to the present embodiment.
Note that the processing of the schedule creation method according to the present embodiment described below can be similarly read and executed by the CPU as a schedule creation program in a computer. Further, the schedule creation program can be installed in storage devices of various computers by recording it in a removable storage medium.

  As shown in FIG. 4, in the computer, basic information (that is, information on orders, information on equipment, information on manufacturing routes, information on processing time, information on worker time zones, information on handling of worker equipment, and information on worker personnel) Information, information on the period) is input in advance from the input unit, recorded in a removable storage medium, or given via a communication network such as the Internet by wired or wireless telecommunication means (STEP 1: order information storage step, equipment information storage step, manufacturing route information storage step, processing time information storage step, worker time zone information storage step, worker equipment correspondence information storage step, worker personnel Information storage step, period information storage step). In addition, about the detail of this step, the order information storage part 21, the equipment information storage part 22, the manufacturing route information storage part 23, the processing time information storage part 24, and the worker time zone information storage part 25 of the schedule creation apparatus 1 mentioned above are mentioned. This is the same as the description of the worker equipment correspondence information storage unit 26, the worker information storage unit 27, and the period information storage unit 28, and the description thereof is omitted.

  Then, in the combination pattern (worker pattern) of all the workers who satisfy the work personnel based on the information on the work personnel stored in STEP 1, the unit is stored in STEP 1 for each unit of the period based on the information on the period stored in STEP 1. The processing time of each process for each order based on the information (information about orders, information about equipment, information about manufacturing routes, information about processing time, information about worker time zones, information about worker equipment correspondence) The load is piled up on each facility and worker as a load (STEP 2: load pile calculation step). The details of this step are the same as those described in the load pile calculation unit 11 of the schedule creation device 1 described above, and the description thereof is omitted.

  Next, one worker pattern with the best evaluation is determined based on the result of the load accumulation of each worker pattern performed in STEP 2 (STEP 3: worker pattern determination step). The details of this step are the same as the description of the worker pattern determination unit 12 of the schedule creation device 1 described above, and the description thereof is omitted.

  Then, a schedule is created based on the best worker pattern determined in STEP 3 (STEP 4: schedule creation step). In addition, this step is the same as the description content of the schedule creation unit 13 of the schedule creation device 1 described above, and a description thereof will be omitted.

  Finally, the schedule created in STEP 4 is output to an output unit such as a display or a printer (not shown) (STEP 5: result output step). Note that this step is the same as that described in the result output unit 14 of the schedule creation device 1 described above, and a description thereof will be omitted.

  Then, the process of the schedule creation method ends.

  As described above, according to the schedule creation device, the schedule creation method, and the schedule creation program of the present embodiment, the set work personnel can be created without creating and comparing schedules with all worker patterns on a trial and error basis. It is possible to efficiently and quickly create a schedule by determining the best worker pattern that reduces orders that are delayed in delivery as much as possible.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims.

  Next, a simple example will be described below in order to explain a specific example of the schedule creation device, schedule creation method, and schedule creation program of the present embodiment.

  In this embodiment, as shown in Table 1, the order number, the product, and the delivery date are registered in the order information storage unit 21 as shown in Table 1 (STEP 1).

  In addition, as shown in Table 2, the manufacturing route information storage unit 23 stores information on the manufacturing route, as shown in Table 2, for the processes that pass when manufacturing each product ("first step" to "third step" in Table 2). (Corresponding to the column) is registered (STEP 1).

  In addition, as shown in Table 3, available equipment (corresponding to the column “Facilities” in Table 3) is registered in the equipment information storage unit 22 as shown in Table 3 (STEP 1). In Table 3, it is set as the equipment with the fast name in order from the left of each line of the A to C processes.

  In addition, as shown in Table 4, the processing time information storage unit 24 stores the total work time required for each process from the start to the completion of the process as shown in Table 4 ("Total Work" in Table 4). (Corresponding to the “time” column) and the worker working time (corresponding to the “working time” column in Table 4) that the worker needs to work on the equipment out of the total work time are registered (STEP 1). ).

  In the example of Table 4, since the total work time is 2 hours and the worker work time is 2 hours in the process A, it is necessary for the worker to work on the equipment at all times of the total work time of 2 hours. In the B process, the total work time is 4 hours and the worker work time is 2 hours. Of the total work time of 4 hours, the worker needs to work on the equipment during the first hour and the last hour. For 1 to 3 hours after the start of the process, it is not necessary for the worker to get to the equipment, and the equipment operates automatically.

  In addition, as shown in Table 5, the equipment that can be used (corresponding to the column of “equipment” in Table 7) is registered in the worker equipment correspondence information storage unit 26 as information related to worker equipment correspondence as shown in Table 5. (STEP 1). In Table 5, it is set as a worker with a fast name in order from the top of the column of workers.

  In the example of Table 5, the worker X can use the facilities A01, A02, B01, and B02.

  In addition, as shown in Table 6, in the worker time zone information storage unit 25, as shown in Table 6, the period of the period information storage unit 28 to be described later (one day in this embodiment) for each worker. Each workable time zone (corresponding to the column “April 1” to “April 5” in Table 6) is registered (STEP 1).

  In addition, the worker is registered in the worker information storage unit 27 as information on the worker (STEP 1). In this embodiment, there are two people.

  Further, a unit of a period for accumulating a load is registered in the period information storage unit 28 as information related to the period (STEP 1). In this embodiment, it is one day.

  Next, the load mountain calculation unit 11 is a unit of the period (hereinafter referred to as the following) stored in the above-described period information storage unit 28 in the combination pattern of all workers satisfying the worker stored in the above-described worker information storage unit 27. For each segment, the order information storage unit 21, the equipment information storage unit 22, the manufacturing route information storage unit 23, the processing time information storage unit 24, the worker time zone information storage unit 25, and the worker equipment Based on the information stored in the correspondence information storage unit 26, the processing time of each process for each order is loaded as a load on each facility and worker (STEP 2).

  In the present embodiment, there are worker patterns satisfying two workers: Y and Z worker patterns, X and Z worker patterns, and X and Y worker patterns. I do.

  First, load piles of Y and Z worker patterns are performed. First, the worker work time 2Hr of the first process (A process) of the order number RC1 with the earliest delivery date is loaded on the worker, and is loaded on the April 1 segment of the worker Z who can only perform the work of the A process. . Then, the total work time 2Hr is loaded on the April 1 segment of the facility A01 that can be used in the process A as a load on the facility. Here, there are facilities A01 and A02 that can be used in the first process (A process) of the order number RC1, and the remaining loads on April 1 of the facilities A01 and A02 immediately before loading the load of the A process are as follows: Both are 24Hr. Therefore, for the first step (step A) with the order number RC1, the facility A01 having a quick name is selected as the facility to load.

  Next, the worker work time 2Hr of the second process (B process) of the order number RC1 is set as a load on the worker, and is loaded on the April 1 segment of the worker Y who can only perform the work of the B process. Then, the total work time 4Hr is accumulated in the April 1 segment of the facility B01 that can be used in the process A as a load on the facility.

  Then, the worker working time 10Hr of the third process (C process) of the order number RC1 is used as a load on the worker, and is loaded on the April 1 segment of the worker Y who can perform the work of the C process. Here, the worker Z can also work in the C process. When the remaining capacity of each worker's April 1 segment immediately before loading the load of the third step of RC1 is calculated, the remaining capacity of April 1 of worker Y is 8Hr-2Hr (B of order number RC1 Process load) = 6Hr, the remaining capacity of worker Z on April 1 is 8Hr-2Hr (load of process A of order number RC1) = 6Hr, which is the same. Therefore, the worker Y whose name is early is selected as the worker who loads the load of the C process.

Then, the load was loaded to a segment of April 1 worker Y, which exceeds the 8Hr is the ability of the operator Y. Therefore, the load 6Hr (8Hr-2Hr) that can be loaded on the April 1 segment of the worker Y is loaded first, and the excess 4Hr (10Hr + 2Hr-8Hr) is loaded on the next segment of the same worker Y. Load into the April 2 segment. Then, corresponding to the worker, as a load on the equipment, 6Hr out of the total work time 10Hr is loaded on the April 1 segment of the equipment C01 that can be used in the C process, and the remaining 4Hr is loaded next to the same equipment C01. To the April 2 segment.

  Table 7 shows the results of the above load stacking. In Table 7, “capability” is the maximum time during which a load can be placed on the “equipment / worker” segment, and the facility information for each period of the period information storage unit 28 registered in the facility information storage unit 22. It is obtained from the available time zone and the time zone in which the worker can work for each period of the period information storage unit 28 registered in the worker time zone information storage unit 25. In this example, the available time zone of equipment for each segment and the time zone where workers can work are the same, and are set together for all segments. Set. In addition, the column “April 1” means the load loaded on the April 1 segment. For example, the first line means that the operation time 2Hr of the process A of the order number RC1 is loaded as a load on the April 1 segment of the facility A01. Here, in Table 7, the reference numerals indicated by circles 1 to 3 indicate the order (No. 1 to 3) in which the load of the process is loaded.

  Similarly, the total work time and worker work time of each process of order number RC2, which has the next delivery date next to order number RC1, are loaded as loads. Table 8 shows the result of load stacking regarding the order with the order number RC2.

  Similarly, the total work time and worker work time of each process of the order number RC3, which has the next delivery date next to the order number RC2, are loaded as loads. Table 9 shows the result of load stacking regarding the order with the order number RC3. Table 9 shows the final result of load stacking of Y and Z worker patterns for all orders.

  Next, load stacking of X and Z worker patterns is performed in the same manner. Table 10 shows the final results of load stacking in the order of early delivery, that is, in the order of the order numbers RC1, RC2, and RC3.

  Finally, load stacking of X and Y worker patterns is similarly performed. Table 11 shows the final results of load stacking in order of early delivery date, that is, in the order of order numbers RC1, RC2, and RC3.

  Next, the worker pattern determination unit 12 calculates the total load (time) accumulated after the delivery date of the order based on the load pile result of each worker pattern input from the load pile calculation unit 11 described above. The worker pattern having the smallest total load loaded after the delivery date of the order is determined as the best worker pattern (STEP 3).

  In the Y and Z worker patterns, based on the piled up results shown in Table 9, when the total load of equipment loaded after the delivery date of each order is calculated, the delivery date of order number RC1 (April 1) When calculating the load of the order number RC1 loaded after the segment, it becomes 4Hr (corresponding to RC1 (C): 4Hr / 10Hr of ○ 3), and after the delivery date (April 2) of the order number RC2 When the load of the order number RC2 loaded is calculated, it becomes 4Hr (○ 5 RC2 (C): 2Hr / 10Hr + ○ 6 RC2 (A): equivalent to 2Hr = 4Hr), and the delivery date of the order number RC3 (4 The load of the order number RC3 loaded after the segment of (March 3) is 2Hr (corresponding to RC3 (C): 2Hr / 10Hr of ○ 9), and the total is 4Hr + 4Hr + 2 A r = 10Hr.

  Similarly, in the X and Z worker patterns, when the total load of the equipment loaded after the delivery date of each order is calculated based on the pile result shown in Table 10, the total is 2Hr + 6Hr + 6Hr = 14Hr Become.

  Similarly, in the X and Y worker patterns, when the total load of the equipment loaded after the delivery date of each order is calculated based on the pile result shown in Table 11, the total is 4Hr + 8Hr + 8Hr = 20Hr Become.

  Therefore, the worker pattern having the smallest total load accumulated after the delivery date of the order is the worker pattern of Y and Z, and the worker pattern of Y and Z is determined as the best worker pattern.

  The schedule creation unit 13 stores the period information storage unit 28 described above based on the best worker pattern (in this embodiment, Y and Z worker patterns) input from the worker pattern determination unit 12. For each period unit, the order information storage unit 21, the equipment information storage unit 22, the manufacturing route information storage unit 23, the processing time information storage unit 24, the worker time zone information storage unit 25, and the worker facility correspondence information storage unit described above. 26, based on each piece of information stored in step 26, in the order of early delivery date, in order from the first step of the manufacturing route of the order, the total work time of each step is the available time zone of equipment that can be used in that step A schedule is created by assigning to a workable time zone of a worker who can use the equipment (STEP 4).

  First, the total work time of each process of order number RC1 with the earliest delivery date is shown in order from the first process, the time zone in which the equipment that can be used in the process can be used and the time zone in which the worker who can use the equipment can work. Will be assigned. First, in the first process (A process) of the order number RC1, both the facilities A01 and A02 can be used between 9: 00 to 11: 00 on April 1, and the facility A01 with the earlier name is selected. Assigned. Moreover, since only this worker Z can use this process, it is assigned to the worker Z. Next, in the second process (B process) of order number RC1, both equipment B01 and B02 can be used between 11:00 and 15:00 on April 1, and the equipment B01 with the fast name is selected. And assigned. Moreover, since only this worker Y can use this process, it is assigned to the worker Y. Next, in the third process (C process) of order number RC1, both facilities C01 and C02 can be used between 15:00 on April 1 and 17:00 on April 2, and the name The fast facility C01 is selected and assigned. In this process, since the workers Y and Z can be used, the worker Y with a quick name is selected and assigned.

  FIG. 5 shows the result of the assignment as described above. FIG. 5 is a Gantt chart showing a schedule result in which each process of the order number RC1 is assigned with the Y and Z worker patterns. As shown in FIG. 5, the second process B is assigned so that the worker Y works by using the equipment B01 for the total work time 4Hr from 11:00 to 15:00 on April 1st. Yes. However, in the second step, the worker Y is working on the equipment B01 only at 11:00 to 12:00 and 14:00 to 15:00, and it is not necessary for the worker Y to be attached to the equipment. 12:00 to 14:00 are shown in white. Also, the third process, C process, uses the equipment C01 at 15:00 to 17:00 on April 1 in the total work time of 10 hours, and the worker Y works, and 9:00 on April 2nd. It is assigned so that the worker Y works by using the equipment C01 at -17: 00.

  Next, the total work time of each process of order number RC2 having the next delivery date next to order number RC1, in order from the first process, the available time zone of the equipment that can be used in that process and the worker who can use the equipment The result is shown in FIG. FIG. 6 is a Gantt chart showing a schedule result in which each process of the order number RC2 is assigned with the Y and Z worker patterns.

  Finally, the total work time of each process of the order number RC3 with the next delivery date next to the order number RC2, the available time zone of the equipment that can be used in that process in order from the first process, and the workers who can use the equipment The result is shown in FIG. FIG. 7 is a Gantt chart showing a schedule result in which each process of the order number RC3 is assigned with the Y and Z worker patterns.

  Then, the result output unit 14 outputs the schedule result summoned in FIG. 7 created by the schedule creation unit 13 as a calculation result in the schedule creation device 1 to an output unit such as a display or a printer (not shown) (STEP 5).

  Here, for comparison, the schedule result of assigning each process of all orders with the worker pattern of X and Z, and the schedule result of assigning each process of all orders with the worker pattern of X and Y, respectively, It is shown in FIG. 8 and FIG. FIG. 8 is a Gantt chart showing a schedule result in which each process of all orders is assigned with the X and Z worker patterns. FIG. 9 is a Gantt chart showing a schedule result in which each process of all orders is assigned with the X and Y worker patterns.

  Here, in order to compare the schedule results of the respective worker patterns, the total sum of days for delivery delay of each order is calculated and compared.

The sum of the days of delivery delay of each order in the schedule result determined and determined as the best worker pattern (Y and Z worker pattern) by the schedule creation device, schedule creation method, and schedule creation program of this embodiment Is calculated as follows based on FIG.
・ Order number RC1 is the completion date (April 2) of the final process (C process) −Delivery date (April 1) = 1 day. ・ Order number RC2 is the completion date (April) 4 days)-Delivery date (April 2) = 2 days-Order number RC3 is the completion date (April 2) of the final process (C process)-Delivery date (April 3) = 0 days (in time for delivery) Because of this, the number of days late for delivery will be 0)
Therefore, the total number of days delayed in delivery is 1 day + 2 days + 0 days = 3 days.

On the other hand, if the total sum of days for delivery delay of each order in the schedule result created with the X and Z worker patterns is calculated based on FIG. 8, it is as follows.
・ Order number RC1 is the completion date (April 2) of the final process (C process) −Delivery date (April 1) = 1 day. ・ Order number RC2 is the completion date (April) 4 days)-Delivery date (April 2) = 2 days-Order number RC3 is the completion date (April 5)-Delivery date (April 3) = 2 days of the final process (C process) The total number of days is 1 day + 2 days + 2 days = 5 days.

On the other hand, if the total sum of days for delivery delay of each order in the schedule result created with the X and Y worker patterns is calculated based on FIG. 9, it is as follows.
・ Order number RC1 is the completion date (April 2) of the final process (C process) −Delivery date (April 1) = 1 day. ・ Order number RC2 is the completion date (April) 4 days)-Delivery date (April 2) = 2 days-Order number RC3 is the completion date (April 5)-Delivery date (April 3) = 2 days of the final process (C process) The total number of days is 1 day + 2 days + 2 days = 5 days.

  Therefore, the sum of the delays in the delivery date is determined as the best worker pattern (Y and Z worker patterns) by the schedule creation apparatus and schedule creation method and schedule creation program of the present embodiment, and the schedule result of schedule creation is the most. You can see that it is getting smaller. As described above, the schedule is efficiently determined by determining the best worker pattern that reduces the order that is delayed in delivery by the set worker, as much as possible, without creating and comparing schedules with all worker patterns on a trial and error basis. You can see that it can be created quickly.

DESCRIPTION OF SYMBOLS 1 Schedule creation apparatus 11 Load pile calculation part 12 Worker pattern determination part 13 Schedule creation part 14 Result output part 21 Order information storage part 22 Equipment information storage part 23 Manufacturing route information storage part 24 Processing time information storage part 25 Worker time zone Information storage unit 26 Worker equipment correspondence information storage unit 27 Work personnel information storage unit 28 Period information storage unit STEP1 Order information storage step, facility information storage step, manufacturing route information storage step, processing time information storage step, worker time zone information Storage step, worker equipment correspondence information storage step, worker personnel information storage step, period information storage step STEP2, load pile calculation step STEP3 worker pattern determination step STEP4 schedule creation step STEP5 result output step

Claims (15)

A schedule creation method for creating an order schedule for a production line that manufactures products in multiple processes,
The processing executed by the computing unit of the computer is
An order information storage step for registering the product and delivery date of the order as information relating to the order;
A manufacturing route information storage step for registering a manufacturing route that is a series of a plurality of processes for manufacturing a product for each product as information on the manufacturing route;
For each process, a processing time information storage step for registering the total work time required from start to completion as information on the processing time;
Equipment information storage step for registering equipment that can be used in the above-mentioned process and a time zone in which each equipment can be used as information on equipment,
A work personnel information storage step as information on the work personnel to register the work personnel when creating the schedule,
For a plurality of workers, a worker facility correspondence information storage step for registering the facility that can be used by each worker as information regarding worker facility correspondence,
Each worker can work time zone, and worker time zone information storage step of registering as information on personnel hours,
For all the combination patterns of workers that satisfy the workers, the total work time of each step of each order, respectively, the facility that can be used in the step and the worker that can use the facility, A load pile calculation step for loading the load in the available time zone of the facility and the time zone in which the worker can work, and outputting a load pile result for each combination pattern of the worker;
A worker pattern determination step for determining one worker combination pattern that is best evaluated based on a load pile result for each worker combination pattern;
With the determined combination pattern of the workers, the total work time of each step of each order can be used for the facility that can be used in the step and the worker who can use the facility. A schedule creation step for creating a schedule by assigning it to a time zone and a time zone in which the worker can work,
A schedule creation method characterized by comprising: The processing time information storage step includes
For each process, the worker working time that the worker of the total working time needs to work on the equipment is further registered as information on the processing time,
The load pile calculation step includes:
For all combination patterns of workers that satisfy the workers, the total work time and the worker work time of each process of each order, respectively, the equipment that can be used in the process and the equipment can be used. For a worker, load the load in the available time zone of the equipment and the available time zone of the worker,
The schedule creation step includes:
The schedule creation method according to claim 1, wherein the schedule is created in consideration of the worker work time. A period information storage step of registering a unit of a period for accumulating a load as information related to the period;
The facility information storage step registers a time zone in which each facility can be used in the unit of the period,
The worker time zone information storage step registers a time zone in which each worker can work in the unit of the period,
The load pile calculation step is the same for each unit of the period, and the total work time of each process of each order is the same for the facility that can be used in the process and the worker that can use the facility. Load as a load in the available time zone of the equipment and the available time zone of the worker within the period,
The schedule creation step includes, for each unit of the period, the total work time of each process of each order for the equipment that can be used in the process and the worker who can use the equipment within the same period. The schedule creation method according to claim 1, wherein the schedule is created by assigning the available time zone of the facility and the available time zone of the worker. The load pile calculation step includes:
In order of the order with the earliest delivery date, in order from the first step of the manufacturing route of the order, load as a load,
The schedule creation step includes:
The schedule creation method according to any one of claims 1 to 3, wherein the schedule is assigned in order from the first step of the manufacturing route of the order in the order of early delivery. The worker pattern determination step includes
Based on the load pile result for each combination pattern of workers, the total amount of loads accumulated after the delivery date for each order is evaluated, and the combination pattern of workers with the smallest total sum is evaluated. The schedule creation method according to any one of claims 1 to 4, wherein the combination pattern is determined as the best worker combination pattern. A schedule creation program that creates an order schedule for a production line that manufactures products in multiple processes.
An order information storage step for registering the product and delivery date of the order as information relating to the order;
A manufacturing route information storage step for registering a manufacturing route that is a series of a plurality of processes for manufacturing a product for each product as information on the manufacturing route;
For each process, a processing time information storage step for registering the total work time required from start to completion as information on the processing time;
Equipment information storage step for registering equipment that can be used in the above-mentioned process and a time zone in which each equipment can be used as information on equipment,
A work personnel information storage step as information on the work personnel to register the work personnel when creating the schedule,
For a plurality of workers, a worker facility correspondence information storage step for registering the facility that can be used by each worker as information regarding worker facility correspondence,
Each worker can work time zone, and worker time zone information storage step of registering as information on personnel hours,
For all the combination patterns of workers that satisfy the workers, the total work time of each step of each order, respectively, the facility that can be used in the step and the worker that can use the facility, A load pile calculation step for loading the load in the available time zone of the facility and the time zone in which the worker can work, and outputting a load pile result for each combination pattern of the worker;
A worker pattern determination step for determining one worker combination pattern that is best evaluated based on a load pile result for each worker combination pattern;
With the determined combination pattern of the workers, the total work time of each step of each order can be used for the facility that can be used in the step and the worker who can use the facility. A schedule creation step for creating a schedule by assigning it to a time zone and a time zone in which the worker can work,
And a schedule creation program that is read out by a calculation unit in a computer and causes each step to be executed. The processing time information storage step includes
For each process, the worker working time that the worker of the total working time needs to work on the equipment is further registered as information on the processing time,
The load pile calculation step includes:
For all combination patterns of workers that satisfy the workers, the total work time and the worker work time of each process of each order, respectively, the equipment that can be used in the process and the equipment can be used. For a worker, load the load in the available time zone of the equipment and the available time zone of the worker,
The schedule creation step includes:
The schedule creation program according to claim 6, wherein the schedule is created in consideration of the worker work time. A period information storage step of registering a unit of a period for accumulating a load as information related to the period;
The facility information storage step registers a time zone in which each facility can be used in the unit of the period,
The worker time zone information storage step registers a time zone in which each worker can work in the unit of the period,
The load pile calculation step is the same for each unit of the period, and the total work time of each process of each order is the same for the facility that can be used in the process and the worker that can use the facility. Load as a load in the available time zone of the equipment and the available time zone of the worker within the period,
The schedule creation step includes, for each unit of the period, the total work time of each process of each order for the equipment that can be used in the process and the worker who can use the equipment within the same period. The schedule creation program according to claim 6 or 7, wherein the schedule is created by assigning the time period in which the facility can be used and the time period in which the worker can work. The load pile calculation step includes:
In order of the order with the earliest delivery date, in order from the first step of the manufacturing route of the order, load as a load,
The schedule creation step includes:
The schedule creation program according to any one of claims 6 to 8, wherein the schedule creation program is assigned in order from the first order of the manufacturing route of the order in the order of early delivery. The worker pattern determination step includes
Based on the load pile result for each combination pattern of workers, the total amount of loads accumulated after the delivery date for each order is evaluated, and the combination pattern of workers with the smallest total sum is evaluated. 10. The schedule creation program according to any one of claims 6 to 9, wherein the schedule pattern is determined as the best combination pattern of workers. A schedule creation device that creates an order schedule using a computing unit of a computer for a production line that manufactures products in a plurality of processes,
An order information storage unit for registering the product and delivery date of the order as information about the order;
A manufacturing route information storage unit for registering a manufacturing route as a series of a plurality of processes for manufacturing a product for each product as information on the manufacturing route;
For each process, a processing time information storage unit that registers the total work time required from the start to the completion as information on the processing time;
Facility information storage unit for registering the equipment that can be used in the process and the time zone in which each equipment can be used as information about the equipment,
A work personnel information storage unit as information on work personnel to register work personnel when creating a schedule,
For a plurality of workers, a worker equipment correspondence information storage unit that registers the equipment that can be used by each worker as information related to worker equipment, and
Each worker can work time zone, and worker time zone information storage unit to be registered as the information about the worker time zones,
For all the combination patterns of workers that satisfy the workers, the total work time of each step of each order, respectively, the facility that can be used in the step and the worker that can use the facility, A load pile calculation unit that loads as a load in the available time zone of the equipment and the work available time period of the worker, and outputs a load pile result for each combination pattern of the worker,
A worker pattern determination unit for determining one worker combination pattern that is best evaluated based on a load pile result for each worker combination pattern;
With the determined combination pattern of the workers, the total work time of each step of each order can be used for the facility that can be used in the step and the worker who can use the facility. A schedule creation unit that creates a schedule by assigning the time zone and the time zone in which the worker can work,
A schedule creation device characterized by comprising: The processing time information storage unit
For each process, the worker working time that the worker of the total working time needs to work on the equipment is further registered as information on the processing time,
The load pile calculation unit
For all combination patterns of workers that satisfy the workers, the total work time and the worker work time of each process of each order, respectively, the equipment that can be used in the process and the equipment can be used. For a worker, load the load in the available time zone of the equipment and the available time zone of the worker,
The schedule creation unit
The schedule creation device according to claim 11, wherein a schedule is created in consideration of the worker work time. A period information storage unit for registering a unit of a period for loading a load as information about the period;
The facility information storage unit registers a time zone in which each facility can be used in the unit of the period,
The worker time zone information storage unit registers a time zone in which each worker can work in the unit of the period,
For each unit of the period, the load pile calculation unit has the same total work time of each step of each order for the facility that can be used in the step and the worker that can use the facility, respectively. Load as a load in the available time zone of the equipment and the available time zone of the worker within the period,
The schedule creation unit, for each unit of the period, the total work time of each process of each order, the equipment that can be used in the process and the worker who can use the equipment within the same period The schedule creation device according to claim 11, wherein the schedule is created by allocating to a time zone in which the facility can be used and a time zone in which the worker can work. The load pile calculation unit
In order of the order with the earliest delivery date, in order from the first step of the manufacturing route of the order, load as a load,
The schedule creation unit
The schedule creation device according to any one of claims 11 to 13, wherein the schedule creation device is assigned in order from the first step of the manufacturing route of the order in the order of early delivery. The worker pattern determination unit
Based on the load pile result for each combination pattern of workers, the total amount of loads accumulated after the delivery date for each order is evaluated, and the combination pattern of workers with the smallest total sum is evaluated. The schedule creation apparatus according to claim 11, wherein the schedule creation pattern is determined as the best combination pattern of workers.