JP2002351524A - Process scheduler system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology on a process scheduler system, that can reduce a stock of subcontracted parts and a stock in process by performing smooth process control time sequentially by integrating the date of delivery of subcontracted key parts into production process control, reducing manhour needing manual imputing and performing delivery control from a subcontractor. SOLUTION: As shown in Figure 1, this process scheduler system generally comprises a process scheduling device (process scheduling means, computer and data processor) 100, an input processing part 105 and an output processing part (output processing means) 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology relating to a process scheduler system for automatically generating a production schedule including a work process, equipment, and a delivery date of an externally procured product in producing a product.

[0002]

2. Description of the Related Art Conventionally, a scheduling system has been known as a process management system for each manufacturing process in a manufacturing factory of various products. 2. Description of the Related Art A conventional scheduling system is used when examining a schedule of a factory or the like, and includes a scheduler and a simulator. Here, the “scheduler” is a system for planning a schedule, and automatically or manually schedules a schedule based on a series of time-series process plans from the start of a predetermined work to the end of the work. It is for. Also,
A "simulator" is a database in which data that is the basis for data processing in the simulator, such as the equipment capacity of a factory, is registered in a database. The schedule can be simulated while considering the schedule planned by the scheduler on a time axis. It was done.

The prior art scheduling system is used to verify the validity of the planned schedule by faithfully simulating the schedule scheduled by the scheduler.

[0004]

However, the prior art has the following problems.

The conventional scheduling system is used for verifying the validity of the planned schedule by faithfully simulating the schedule scheduled by the scheduler. Therefore, there is no coordination between the externally procured products and the work performed after the delivery, so that the schedule is different from the actual one. That is, in the scheduling system of the related art, since it is separated from the component ordering system as a normal business, the schedule of the work process linked to the delivery date of the externally procured product cannot be made. Also,
Even if they can be linked, it is necessary to manually input the member order data again, which is troublesome.

The present invention has been made in view of such a problem, and an object of the present invention is to incorporate a delivery time of a key part to be ordered externally into a process control in production, so that a time series can be smoothly controlled. Process management, reduce man-hours requiring manual input, and control delivery from subcontractors.
It is an object of the present invention to provide a technology relating to a process scheduler system capable of reducing the stock of outsourced parts and the work-in-process stock.

[0007]

The gist of the present invention described in claim 1 is a process scheduler system for automatically generating a production schedule, wherein member ordering information for taking in key part ordering data outside of a company's own factory. And a schedule development processing means for performing a process development relating to production, wherein the schedule development processing means correlates with an external procurement process from ordering to delivery of a key part corresponding to the key part order data. A priority process allocation processing unit that allocates the externally procured product process with the highest priority, and a new outsourcing of the production process corresponding to the key part order data to a subcontractor such as when the load of the factory in the production plan is over And a schedule adjustment setting unit for setting outsourced outsourced changes including changes in production processes already outsourced. That. The gist of the present invention according to claim 2 is that the member order information acquiring means is connected to an external member ordering system and fetches the key part order data linked to the order information in the member ordering system. 2. The process scheduler system according to claim 1, wherein the expansion processing means expands the process with the external procurement process based on the taken key part order data as a priority process. The gist of the present invention described in claim 3 is that
3. The schedule development processing unit according to claim 1, wherein the schedule development processing unit generates plot data of each of the developed processes, and sends the plot data to an output processing unit such as a printing device or a display device. It exists in the process scheduler system. The gist of the present invention according to claim 4 is that the schedule development processing means has a dependency table for determining the priority of each step, and the dependency table includes:
An identifier for determining whether the process can be started in parallel with the previous process set for each process or can be started after the end of the previous process is set in advance, and the identifier of the external procurement process is the external procurement process. The process scheduler system according to any one of claims 1 to 3, wherein settings are made so that the process can be started in parallel with the previous process. The gist of the present invention according to claim 5 is that the schedule development processing means includes:
The process scheduler system according to any one of claims 1 to 4, wherein a process of managing the key component production process outside the company factory corresponding to the external procurement process is managed and developed. The gist of the present invention according to claim 6 is a manual schedule adjusting method using the process scheduler system according to any one of claims 1 to 5, wherein the production schedule outside the company factory corresponding to the ordering of key parts is provided. In the schedule adjustment setting section for setting outsourced outsourced changes including new outsourced and outsourced production process changes, after the process development by the schedule development processing means, the key components ordered in the post-process of the external procurement process In order to reduce the backlog of
The present invention resides in a manual schedule adjusting method, wherein a delivery date of the key component is adjusted, and a schedule for controlling the delivery can be adjusted. According to a seventh aspect of the present invention, there is provided a method for displaying a schedule using the process scheduler system according to any one of the first to fifth aspects, wherein the externally procured product process corresponding to a key part order and the external procurement process are provided. In the display part of the output means corresponding to the delivery date of the external procured product related to the product process,
The present invention resides in a method of displaying a schedule, wherein a predetermined color such as red, which is easy for an operator to distinguish, is set. The gist of the present invention described in claim 8 is a method for procuring raw materials using the process scheduler system according to any one of claims 1 to 5, wherein the method is applied to a subcontractor such as when the load of its own factory in a production plan is over. After ordering the raw materials including the key parts related to the load, and after the process development by the schedule development processing means, in the post-process of the external procurement process, the delivery of the raw materials to suppress the stock on hand of the ordered raw materials is performed. Adjusting the date and instructing the subcontractor to produce the raw material or procurement at the subcontractor based on the adjusted delivery date to control the procurement of the raw material at the own factory. Raw material procurement method characterized by the following.

[0008]

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

FIG. 1 is a block diagram showing a configuration of a process scheduler system according to the present embodiment.

As shown in FIG. 1, a process scheduler system according to the present embodiment comprises a process scheduling device (process scheduling means, computer, data processing device) 100, an input processing unit 105, and an output processing unit (output processing unit). (Means) 51.

The input processing unit 105 includes a member order information acquisition unit (member order information acquisition unit) 101, a work allocation method input unit 102, a schedule adjustment input unit 103, and a work result input unit 104.

A member order information taking-in unit 101 is a member ordering system (ordering system, MRP) which is usually a separate system.
It has a function of taking in key part ordering data in conjunction with 200.

The work allocation method input unit 102 receives data used for setting work capacity and setting process dependency.

The schedule adjustment input unit 103 inputs data used for a change in equipment capacity or a change in outsourcing.

In the work result input unit 104, data used for deleting the target job, updating the in-process / product inventory, and resetting the defect rate is input.

The process scheduling apparatus 100 includes a schedule development processing unit 110, an external procurement item delivery date setting unit (external procurement item process-related setting unit) 11, and a work allocation method setting unit 12.

Based on the key part order data taken in by the part order information take-in section 101, the externally procured item delivery date setting section 11 sets a key part TBL (key part table) as a priority step for a step related to a part to be ordered. T) stored in
The delivery date is plotted with reference to the BL data (table data). Thereby, the delivery date of the externally procured product is set.

The work allocation method setting unit 12 performs work capacity setting and process dependency setting based on the data input by the work allocation method input unit 102.

Schedule development processing unit (schedule development processing means) 11
0 includes a priority process allocation processing unit 120, a schedule adjustment setting unit (schedule adjustment unit) 13, and a work result management processing unit 14.

The schedule adjustment setting unit 13 includes a schedule adjustment input unit 1
Based on the data entered in 03, change in equipment capacity due to increase / decrease in the number of facilities, increase / decrease in operating hours such as overtime and work on holidays,
If necessary, such as when the load of the factory in the production process is over, the subcontractor is set up such as new consignment of the production process corresponding to the key part ordering or change of the subcontractor outsourced change including the change of the outsourced production process.

The work result management processing unit 14 performs a process of deleting the target job, updating the work-in-process / product inventory, and resetting the defect rate based on the data input by the work result input unit 104.

The priority step allocation processing unit 120 determines the
An OB acquisition 21, a priority process assignment process 22, a dependency assignment process 23, and a resource / defective rate assignment process 24 relating to equipment, factors, and time are performed.

The output processing section 51 prints out the displayed schedule planning result in the form of a Gantt chart or displays it on a display.

FIG. 2 is a diagram showing the relationship between the operation in FIG. 1 and the ordering system (MRP) 200.

In conjunction with the already established ordering system 200, key part order data is taken in and key part registration data is created (step A01).

Based on the created key part registration data and the database 210 concerning product production, work items (processes) are automatically created (step A02).

Next, the key component delivery date is plotted in order to formulate a schedule with the delivery priority of the key component as the highest priority (step A03).

Schedule development including the relationship with key parts is performed (step A04).

The output processing section 51 displays a schedule and displays an adjustment by the operator (step A05).

In the adjustment (A05X) by the operator, the load and delivery date of the work process are changed (step A0).
6) Return to step A04.

In the adjustment (A05X), the outsourcing and the change of the delivery date of the key part are performed (step A07), and the process returns to step A01.

Further, in the adjustment (A05X), the adjustment O
In the case of K (step A08), it is determined (step A0
9), a change request for external procurement is made (step A10), and the processing of the ordering system 200 is performed.

In order to achieve the above-mentioned flow, a scheduler for making a series of time-series plans from the start of an event having a work element to the end thereof, and equipment capacity of a factory, etc.
A database is needed for the underlying data needed to simulate the schedule planned by the scheduler. In addition, a schedule is simulated by performing a simulation calculation of an event such as a work schedule planned by the scheduler while considering a time axis.

FIG. 3 is a flowchart showing the flow of the operation of FIG.

First, the designated target job is extracted and acquired in the order of delivery date (development target job acquisition) (step S).
1). Here, in the case of the same delivery date, the order is determined by the priority of the order TRN (order transaction, order).

Next, the externally procured product delivery date setting unit 11 shown in FIG. 1 fetches the order information of the externally procured product by calculating the required quantity of the component, and refers to the TBL data stored in the key component TBL as a priority process for one process. Then, the delivery date is plotted (acquisition of the delivery date of the externally procured product) (step S2).

Further, a dependency relationship TBL (process dependent TBL,
End (dependency table) (delivery date of procured parts)
FS (End-Start), which is an identifier indicating the relationship between “Start” and “Start”
Based on the above, the process related to the delivery date of the externally procured product is determined.

A general process not related to an external procurement item is based on the identifiers SS (start-start) and FS (end-start) in the dependency relationship TBL, and indicates the number of hours before the start of the preceding process or the end of the preceding process. It is determined whether or not to start the corresponding process later, and the process is developed (step S3).

Next, the number of productions per process is determined according to the following contents (determination of the number of productions per process) (step S4). (B) Based on the number of TRNs (transactions to be delivered) to be delivered to the customer, the number of productions for each process is obtained from the defect rate for each process in the process-dependent TBL. (B) When the number of requests for the process corresponding to the outsourcing TRN (outsourcing transaction) is set, the production number minus the number of requests obtained in (a) is the in-house production number.

An equipment load determination is made in the following manner (step S5). (C) Operating time TBL (operating time table) and capacity TB
With reference to L (capacity table), a machine to be assigned for each process is determined. (D) Capability TBL is extracted by drawing number and process, and is read in order of priority. However, if the corresponding drawing number and the machine of the process are set in the machine TRN (machine transaction), the machine T
The target machine is determined in consideration of whether the RN is used or not used. (E) Obtain the production time of the process. (Production quantity / capacity T
(Production capacity per time of BL = production time) (f) Obtain the operation time of the target machine from the operation time TBL. (G) A plan machine TRN (plan plan transaction) or a deployment simulation TRN (development simulation transaction) is sequentially referred to from the past to search for a vacant machine.

Here, the change in the operating time set for the holiday TRN (holiday transaction) is considered.

The schedule is displayed on the Gantt chart for each job and for each facility (schedule display) (step S6).

With reference to the displayed schedule plan, it is determined whether or not schedule adjustment is performed (step S7).

When the schedule is adjusted (Yes in the figure), an increase or decrease in the number of facilities and an increase or decrease in operating hours such as overtime and work on holidays are performed.
An instruction is issued to change the subcontractor to outsource the process to a subcontractor as necessary, such as when the load in the production process is over (schedule development adjustment) (step S8), and the process returns to step S1.

Note that the simulation of the previous schedule plan is stored in the development simulation TBL (development simulation table), and when it is desired to refer to the schedule plan before the change, it is displayed from the development simulation TBL.

FIG. 4 is a diagram showing a process-dependent TBL 150, an externally procured product TBL 160, and a schedule allocation result example 170.

The specific operation flow of the process scheduler system according to the present embodiment will be described with reference to FIG.

The scheduling of the production process is developed in consideration of the equipment capacity, the calendar, the operation time, the defect rate, the production amount, and the like. The external procured product TBL (external procured product table) having the contents of the external procured product 160 and process dependent TB
L (dependency TBL) 150 is developed.

As shown in FIG. 4, the process-dependent TBL 150
In JOB1A of JOBCD152, step 1
~ 5 correspond.

The “SS” in the preceding process dependency 10K means “start-start” that can be started in parallel with the preceding process.
“FS” means “end-start” at the start of the process after the end of the previous process.

The example of the schedule development is the first processing step 1
, The externally procured product TBL160 is prioritized as in Step 2, the order date 10H and the scheduled delivery date 10N are plotted, and then the process is developed according to the process order and process dependency.

As a result, a schedule allocation result example 170
Steps 1 to 5 are displayed as shown in FIG.

Since the process scheduler system according to the embodiment is configured as described above, the following effects can be obtained.

Since the process is developed by the input of the operation method and the input of the schedule adjustment, the actual schedule can be developed any number of times.

Further, since the order information is fetched from the member ordering system which is another system in advance, it is not necessary to manually input the order information again.

Further, the schedule is developed in conjunction with the delivery date of the externally procured product, and the schedule change can be easily adjusted by incorporating a change to a subcontractor as a countermeasure against overload limit.

In the present embodiment, the present invention is not limited to this, and can be applied to a technique relating to a process scheduler system suitable for applying the present invention.

The number, position, shape, and the like of the above-mentioned constituent members are not limited to the above-described embodiment, but can be set to a number, position, shape, and the like suitable for carrying out the present invention.

In the respective drawings, the same components are denoted by the same reference numerals.

[0060]

Since the present invention is configured as described above, the following effects can be obtained.

The first effect is that the schedule can be simulated at a high speed, and the efficiency of the schedule can be improved. The reasons are process information, dependency information, equipment information,
This is because the process development and schedule assignment can be performed at high speed by the computer based on the calendar, the capability information, and the like.

The second effect is to simulate the influence on the production schedule of the company due to the delivery management of the externally procured products.
That is, it is possible to reduce the number of manual processes and manual waiting processes. The reason is that the externally procured products are developed with the highest priority, and then all the processes are developed, so that it is easy to determine which period will be waiting. In addition, by displaying the data for this determination so that it can be visually understood, it is possible to take measures such as schedule adjustment and demand for delivery.

The third effect is that the in-process inventory can be reduced by the delivery control. The reason is that if the waiting time increases between the processes, the members and the in-process stock are delayed for each process and increase. In-process stock can be reduced by reducing the hand waiting time by changing the delivery time or the like in order to control the process of the hand waiting work.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a process scheduler system according to an embodiment of the present invention.

FIG. 2 is a diagram showing the relationship between the operation in FIG. 1 and an ordering system.

FIG. 3 is a flowchart showing a flow of the operation of FIG. 1;

FIG. 4 is a diagram showing a process-dependent TBL, an externally procured product TBL, and an example of a schedule assignment result in the process of the process scheduling apparatus in FIG. 1;

[Description of Signs] 1-5 Process 1A JOB 10H Ordering date 10K Dependency on previous process 10N Scheduled delivery date 11 Externally procured product delivery date setting section (Externally procured product process related setting section) 12 Work allocation method setting section 13 Schedule adjustment setting section (Schedule adjustment unit) 14 Work result management processing unit 21 Acquisition of job to be expanded 22 Priority process allocation process 23 Dependency allocation process 24 Resource / defective rate allocation process 51 Output processing unit (output processing unit) 100 Process scheduling device (process scheduling unit) , Computer, data processing device) 101 member order information acquisition unit (member order information acquisition means) 102 work allocation method input unit 103 schedule adjustment input unit 104 work performance input unit 105 input processing unit 110 schedule development processing unit (schedule development) Processing means) 120 priority process allocation processing unit 150 process dependent TBL (dependency) TBL) 152 JOBCD 160 Externally procured item TBL (Externally procured item table) 170 Schedule allocation result example 200 Material ordering system (ordering system, MRP) 210 Database

Claims (8)

[Claims] 1. A process scheduler system for automatically generating a production schedule, comprising: a member ordering information fetching means for fetching key part ordering data outside a company's own factory; and a schedule development processing means for developing a production-related process. Wherein the schedule development processing means assigns the externally procured product process to the process correlated with the externally procured product process from ordering to delivery of the key component corresponding to the key component order data with the highest priority. The priority process allocation processing unit and the outsourcing contract change including the new consignment of the production process corresponding to the key part order data or the change of the production process already consigned to the subcontractor such as when the load of the factory in the production plan is over. A process scheduler system comprising a schedule adjustment setting unit for setting. 2. The member order information taking-in means is connected to an external member ordering system and takes in the key part ordering data in conjunction with ordering information in the member ordering system. The process scheduler system according to claim 1, wherein the externally procured product process based on the inserted key part order data is developed as a priority process. 3. The process according to claim 1, wherein the schedule development processing means generates plot data of each of the developed processes, and sends the plot data to an output processing means such as a printing device or a display device. Or the process scheduler system according to 2. 4. The schedule development processing means has a dependency table for determining a priority of each process, and the dependency table can be started in parallel with a previous process set for each process. Or an identifier for determining whether the process can be started after the end of the previous process is set in advance, and the identifier of the external procured product process is set so that it can be started in parallel with the previous process of the external procured product process. The process scheduler system according to any one of claims 1 to 3, wherein: 5. The schedule development processing means manages, in a series of steps in product production, a production process of the own factory and a production process of the key part outside the own factory corresponding to the external procurement process. The process scheduler system according to any one of claims 1 to 4, wherein the process is developed by a process. 6. A manual schedule adjusting method using the process scheduler system according to claim 1, wherein a new production process is outsourced to an outside of a factory corresponding to a key part order. In the schedule adjustment setting part for setting outsourced outsourced change including the change of the production process, after the process is developed by the schedule development processing means, the hand-held inventory of the ordered key parts in the subsequent process of the external procurement process is suppressed. Therefore, the delivery date of the key part is adjusted, and the schedule for controlling the delivery can be adjusted. 7. A schedule plan display method using the process scheduler system according to claim 1, wherein an external procurement process corresponding to a key part order and an external procurement product relating to the external procurement process. A predetermined color, such as red, which is easy for the operator to discriminate, on a display portion of the output means corresponding to the delivery date. 8. A raw material procurement method using the process scheduler system according to any one of claims 1 to 5, wherein a key related to load is supplied to a subcontractor in a production plan such as when the load of an own factory is overloaded. After ordering raw materials including parts, after the process development by the schedule development processing means, in the subsequent process of the external procurement process, adjust the delivery date of the raw materials in order to reduce the stock on hand of the ordered raw materials, and adjust Based on the delivery date, to the subcontractor, instruct the production of the raw materials, or procurement at the subcontractor,
A raw material procurement method comprising controlling the procurement of the raw material at the in-house factory.