JPH05233639A - Processing prediction result generating device - Google Patents

Abstract

PURPOSE:To provide the processing prediction result generating device which can obtain processing data being useful for appropriate and quick production scheduling. CONSTITUTION:A simulation part 1 executes simulation of a production line having plural processes. A section collecting part 2 refers to a result of simulation by a simulation executing means and collects plural processes to one section in accordance with a rule determined in advance, and generates M pieces of sections. A processing number arithmetic part 3 calculates the number of processings in the section. A daily processing transition in M pieces of sections and a result of prediction of the section-to-number of processings are displayed by a display means (not in the figure).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-process prediction result creating apparatus in production scheduling or the like.

[0002]

2. Description of the Related Art A conventional in-process prediction result will be described with reference to FIG. As shown in FIG. 3, refer to equipment operation information including an equipment name, the number of equipment, and an equipment operation rate for each day, process procedure information including a process procedure and a processing time for each process, and master information of a dispatching rule. Then, the production plan information including the product type name and the input plan is input, and the simulation unit 1 simulates all the processes. Then, the in-process number calculation unit 4 calculates the in-process number for each process based on the simulation result. The number of work in process for each day is obtained by subtracting the number of process end for each day from the sum of the number of work in process at the start of simulation and the number of process start for each day. Then, referring to the in-process prediction result, the daily in-process changes are displayed for the entire line, each product type, each equipment, and each process, as shown in FIG.

[0003]

In the above-mentioned conventional work-in-process calculation method, especially when a production line having a large number of total processes is targeted, it takes a long time to calculate the number of work-in-processes for each process. The number of in-process prediction results becomes enormous. In addition, in order to obtain macro in-process information for the entire line, after calculating the number of in-process for each process, the process of newly combining multiple processes into one section is performed. There is a drawback that it is difficult to obtain appropriate and effective information.

[0004]

According to a first aspect of the present invention, in an in-process prediction result creating apparatus, a simulation executing means for simulating a production line having a plurality of steps, and a simulation result by the simulation executing means are referred to in advance. It is characterized in that it has a section collecting means for collecting the plurality of processes into a predetermined number of sections according to a predetermined rule, and a work in progress number calculating means for calculating the number of work in progress in the sections.

The second aspect of the present invention further comprises display means for weighting the number of in-process work in progress by the total work time of the processes included in the above-mentioned process and displaying it as a graph of the number of work in progress. Characterize.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is an operation explanatory diagram of the present embodiment.

In the process procedure information shown in FIG. 1, serial numbers (1
It is assumed that there is data in which ~ N) are assigned. here,
As shown in FIG. 2B, all the processes are grouped into M sections with reference to the process procedure information. Note that (M <N), and the number of steps in each section is (N / M), but if the number cannot be divided by an integer, it is rounded to an integer.

After the simulation unit 1 has simulated all the processes, the grouping and grouping unit 2 shown in FIG. 1 performs grouping and grouping, and the in-group number of units in process calculation unit 3 calculates the number of units in process. . The number of work-in-processes within the category is obtained by subtracting the number of process-ends for each day from the sum of the number of work-in-country at the start of the simulation and the number of daily process starts. As a result, the in-process prediction results for each of the N steps can be aggregated into the in-process prediction results for each of the M sections, and as a result, as shown in FIG. The in-process transition can be displayed by a display means (not shown).

Further, by combining the above-mentioned categories, it is possible to display the prediction result of the category versus the number of work in progress by a display means (not shown). By performing weighting according to the total work time in the section and displaying it like the work-in-progress in FIG. 2D, it is possible to obtain information about the work-in-progress and the total work in-section in one graph. .

[0011]

As described above, according to the present invention,
Particularly in the case of a production line having a large number of total processes, it becomes easy to grasp the in-process prediction result, and as a result, it becomes possible to perform appropriate and prompt production scheduling.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an in-process prediction result creating apparatus of the present invention.

FIG. 2 is an operation explanatory diagram of the present embodiment.

FIG. 3 is a block diagram showing an embodiment of a conventional in-process prediction result creating apparatus.

[Explanation of symbols]

 1 Simulation Department 2 Classification Summary Department 3 In-workpiece number calculation part 4 In-process number calculation part

Claims (2)

[Claims] 1. In a work-in-process prediction result creating apparatus, a simulation executing means for simulating a production line having a plurality of steps, and a plurality of steps according to a predetermined rule by referring to a simulation result by the simulation executing means. A work-in-progress prediction result creating apparatus comprising: a section collecting means for collecting a predetermined number of sections and a work-in-progress number calculating means for calculating the number of work-in-progress in the section. 2. A display means for weighting the number of work in process in each section according to the total work time of the processes included in the section and displaying the graph as a graph of the number of work in progress for each section. In-process prediction result creation device described.