JP3010671B2 - Production schedule creation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a production schedule creation device, and more particularly, to a sequential job assignment type production schedule creation device.

[Conventional technology]

The conventional production schedule creation apparatus records only the planned job execution and equipment operation status, and displays the result.

[Problems to be solved by the invention]

Since the conventional production schedule creation device described above does not record the detailed information when the equipment is not operating and the detailed information when the job is stagnant, after creating the plan, it is determined whether the plan is good or not. However, there was a problem that if the conditions were changed, it would not be clear if the plan would be better.

The purpose of the present invention is to address problems, improvements,
It is still another object of the present invention to provide a production schedule creation device that can grasp the problems of the target shop and the like, and can easily judge the quality of the production plan and the shop plan, and easily draft an improvement policy.

[Means for solving the problem]

The production schedule creation device according to the present invention includes: (A) a shop status recording unit for recording data indicating the state of facilities, workers, and jigs of a target shop every moment as the schedule creation progresses; ) A job status recording unit for recording data indicating a work-in-process, a work-in-process facility, a type, a quantity, and a delivery date for a plurality of jobs flowing in the shop. (C) Processes including facility designation, jig designation, and worker designation. (D) a process start condition storage unit that holds process start condition data including a process time and a process unit for each product passing through each process; E) Extract a process in the shop status recording unit where there is a non-operating facility, and assign a job waiting for the process to the job status. A job matching the rules of the process start condition storage unit from among the jobs extracted from the job status recording unit and extracted from the job status recording unit, and extracting the job based on the data of the process condition storage unit. An equipment operation check unit that determines a work schedule and updates the job status recording unit and the shop status recording unit based on the information on the start time and the end time. (F) A job waiting for the process in the equipment operation check unit A facility non-operation reason recording unit for recording the non-operation reason of the equipment for the facility when there is no job that meets the start condition, and (G) a job waiting for a process when there is no job that satisfies the start condition. (H) a job stagnation reason recording unit for recording the reason why the work is not started; A scheduling control unit for repeatedly starting the equipment operation check unit so that all jobs proceed to a designated place; and (I) a facility non-operation reason for presenting a non-operation reason at the time of non-operation for each equipment after a schedule is created. A display unit; and (J) a stagnation reason display unit for presenting the stagnation reason when each process wait occurs for each job.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

 FIG. 1 is a block diagram of one embodiment of the present invention.

The production schedule creation device shown in FIG. 1 includes a shop status recording unit 4 for recording data indicating the state of the equipment, workers, and jigs of a target shop every moment as the schedule creation progresses. For a plurality of flowing jobs, a job status recording unit 1 for recording data indicating in-process, in-process equipment, type, quantity and delivery date, a facility / operator schedule recording unit 18 for recording facility / operator schedule, and a job schedule. Job schedule recording unit 20 to record, equipment designation,
A process start condition recording unit 8 for holding job start condition data for each product type in each process including a jig designation and an operator designation, and process process condition data including a processing time and a processing unit for each product passing through each process. The process processing condition recording unit 13 to be held and the process in the shop status recording unit 4 where there is a non-operating facility are extracted, and the job waiting for the process is extracted from the job status recording unit 1, and the job status recording unit 1 A job that conforms to the rules of the process start condition storage unit 8 is extracted from the jobs extracted from the job, and the work schedule of the job is determined based on the data of the process process condition storage unit 13. The equipment operation check unit 16 updates the job status recording unit 1 and the job status recording unit 4 based on the information. If there is no matching job if and undertake condition no jobs waiting for degree, equipment unavailability reason recording unit that records the unavailability reason equipment for the equipment
19. If there is no job that satisfies the start condition, a job stagnation reason recording unit 21 that records the reason why work is not started for a job waiting for a process, and all jobs in the job status recording unit 1 are specified in advance. The scheduling control unit 17, which repeatedly starts the equipment operation check unit 16 to advance to the point, displays the reason for non-operation at the time of non-operation for each equipment after creating the schedule, and when each process wait occurs for each job It is composed of a schedule / inactivity / stagnation reason display unit (equipment inactivity reason display unit and stagnation reason display unit) 22 for displaying the reason for stagnation.

 Next, the operation will be described.

First, data blocks required for creating a schedule will be described.

In FIG. 1, the job status recording unit 1 stores the type, quantity,
In addition to the delivery date data 3, the in-process in-process / in-process equipment data 2 currently being processed is recorded, and the in-process in-process / in-process equipment data 2 for each job is operated at any time as the scheduling work progresses. Updated by the check unit 16.

The shop status recording unit 4 stores the equipment operation status data 5, the operator operation status data 6, and the jig use status data 7 in the shop, that is, the usage status of the shop resources at a certain time (operating, stopped, etc.). Is recorded. The record data of the shop status recording section 4 is
As in the case of the above-described job status recording unit 1, it is updated every moment as the schedule creation progresses.

The process start condition storage unit 8 stores, for each type, equipment specification data 9 for each type, worker specification data 10 for each type, required jig data 11 for each type, and in-process in-process limit data before the next step.
12 and the like are stored, and when the schedule is created, data is sent to the equipment operation check unit 16 as job assignment conditions for each equipment.

The process processing condition recording unit 13 records, for each process, process process time data 14 for each type passing through the process and process process unit data 15, which is the maximum quantity that can be processed at one time, and checks the equipment operation. When the job ratio to the equipment is determined by the unit 16, basic data for calculating the scheduled processing time of the job is given.

 Next, a specific schedule creation procedure will be described.

The equipment operation check unit 16 extracts equipment that is not currently operating from the shop status recording unit 4 described above,
A plurality of jobs waiting for equipment in the process are extracted from the job status recording unit 1. Then, for one of the jobs, it is determined from the data in the process start condition storage unit 8 and the data in the shop status recording unit 4 whether or not the job can be immediately processed by the facility. If the job cannot be processed, the reason is recorded in the job stagnation reason recording unit 21, and the next candidate job is checked.

If the job is executable, the scheduled processing time is calculated based on the data in the process processing condition recording unit 13, the schedule is entered in the equipment / worker schedule recording unit 18 and the job schedule recording unit 20, and the job status recording is performed. The various statuses of the section 1 and the shop status recording section 4 are updated.

If the start conditions do not match for all the candidate jobs in the facility, and if no candidate job exists, the facility non-operation reason recording unit 19 stores the important information given in advance among the plurality of lower operation reasons. Fill in the highest degree. This series of operations is repeated until all the jobs in the job status recording unit 1 advance to the process specified in advance, or until the schedule creation progresses to the specified time. This repetition control is performed by the scheduling control unit 17.

After the schedule is created, the tool for evaluating the drafted plan is the schedule / non-operation / stagnation reason display unit 22. FIG. 2 shows an example of a screen of the display unit. In this screen example, the work schedule for the facility M / C-1 in the shop is displayed in the form of a Gantt chart. The solid line indicates the work schedule, and the dotted line indicates the non-operation time. Here, as for the non-operation time, non-operation reasons such as product waiting, jig waiting, and worker waiting are displayed. Further, as an operation status analysis, an operation / non-operation ratio in the entire scheduling period of M / C-1 is provided.

These non-operation status data are in a format called at a necessary time, such as a pop-up menu. A similar screen is prepared for the Gantt chart of each job, and provides judgment data for shop planning and production planning, such as a shortage of the number of equipments in competition with each other.

〔The invention's effect〕

As described above, the present invention can present the reason for the planned plan when the equipment is not operating, and can present the reason when the job is stagnant. It is possible to grasp the problems of the planned plan, the points to be improved, the problems of the target shop, and the like, and it is easy to judge the quality of the production plan and the shop plan and to draft an improvement policy.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a screen of a schedule / non-operation / stagnation reason display section. 1 ... job status recording section, 2 ... in-process process / in-process equipment data, 3 ... type, quantity, delivery date data, 4 ...
... Shop status recording section, 5... Facility operation state data, 6... Worker operation state data, 7... Jig use state data, 8... Process start condition storage section, 9. 10 ... type-specific worker designation data, 11 ... type-specific required jig data, 12 ... process in-process amount limit data, 13 ... process processing condition recording unit, 14 ... type-specific process processing time data, 15: process processing unit data, 16: equipment operation check unit, 17: scheduling control unit, 18 ...
Equipment / worker schedule recording unit, 19: Facility non-operation reason recording unit, 20: Job schedule recording unit, 21: Job stagnation reason recording unit, 22: Schedule / non-operation / stagnation reason display unit.

Claims (1)

(57) [Claims] (A) A shop status recording unit for recording data indicating the state of facilities, workers, and jigs of a target shop every moment as a schedule is created, and (B) inside a shop. A job status recording unit that records data indicating the in-process, in-process equipment, type, quantity, and delivery date for a plurality of flowing jobs. (C) For each type in each process including equipment specification, jig specification, and worker specification (D) a process start condition storage unit that holds job start condition data; (D) a process process condition recording unit that holds process process condition data including a processing time and a processing unit for each product passing through each process; (E) the shop The process in which the inactive equipment in the status recording unit is extracted is extracted, and the job waiting for the process is extracted from the job status recording unit. From among the jobs extracted from the job status recording unit, a job that conforms to the rules of the process start condition storage unit is extracted, and a work schedule of the job is determined based on the data of the process processing condition storage unit. A facility operation check unit that updates the job status recording unit and the shop status recording unit based on the information of the start time and the end time; and (F) the case where there is no job waiting for the process in the facility operation check unit and the start condition is met. If there is no job to be performed, the equipment non-operation reason recording unit that records the non-operation reason of the equipment for the relevant equipment. (G) The reason why the work is not started for the job waiting for the process when there is no job that satisfies the starting condition. (H) All the jobs in the job status recording section are designated in advance by a user. A scheduling control unit that repeatedly activates the equipment operation check unit so as to proceed to the point where the operation has been performed; (I) a facility non-operation reason display unit that presents a non-operation reason for non-operation of each equipment after a schedule is created; A production schedule creation device, comprising: a stagnation reason display unit for presenting the stagnation reason when each process wait occurs for each job.