JPH05225207A - Computer display production control board - Google Patents

Abstract

PURPOSE:To provide the computer display production control board which enables display at plural terminals while being directly connected to a computer system used for a production control system. CONSTITUTION:This device is provided with a keyboard 52 for inputting various information required for production control, new distribution or changed distribution and the real result of a production schedule as well, CPU 51 to decide the production schedule based on the information inputted by this keyboard 52 and to calculate the real progress condition of the production schedule based on this decided production schedule and the information inputted by the keyboard 52, and display devices 61, 62, 63... to display the calculated result of the CPU 51 in the form of a graph.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production control board, that is, a production control board which is a tool for process planning and process control at a production site such as a factory, and more particularly to a computer-controlled production control board.

[0002]

2. Description of the Related Art In recent years, there has been a tendency for various kinds of industrial products to be produced in various kinds in small quantities, according to the request from the ordering side. In such a high-mix low-volume production, the production time per lot of the product is different, and the floor occupying area for storing the raw material and the intermediate product is different. Therefore, the process planning and process management are complicated. As means for process planning and process control in such factories, for example, "Visual Production Control Plates" in P53 to P55 of "Stockless Production" (published on May 30, 1986) by Nikkan Kogyo Shimbun. Production control boards such as those shown in are known. This production control board has a method of sticking various cards on the board.
The details will be described below.

There are usually three types of production control boards: (1) progress control board (schedule surface and quantity surface), (2) delivery date management board, and (3) dispatch management board.

The progress management target includes a schedule side and a quantity side, and FIG. 1 shows a schematic diagram of a basic form of the progress management board on the schedule side, which is particularly important in order-to-order manufacturing. In the example of the progress control plate 1 shown in FIG. 1, each process (A, 21) ... B, C ...)
A magnet or card will be attached and displayed at the position of the scheduled date, and when the work is completed, the magnet or card will be removed. Then, for example, if the cord is lowered to the position of the day, it becomes clear at a glance whether or not there is an arrangement to start and the progress of the process.

The delivery date management plate is used when performing one point delivery control for each production arrangement. In the middle of the process, since it is possible to grasp the delivery date of the process with the progress control plate, there is not much need to provide a delivery date management plate for the product, but rather the delivery date management plate for materials, parts, jigs, etc. is necessary. Fig. 2 shows a schematic diagram of the delivery date management board. In this example, a card is affixed to the day on which each arrangement 23, 24, 25, ... Is to be completed according to the date described in the schedule column 11 on the production control board 1.

[0006] To send is to indicate the work contents and work order confirmed on the day for each facility or worker.
By displaying this on the dispatch control board, it is unnecessary to give a work instruction or ask for a work instruction. FIG. 3 shows a schematic view of the upright management plate. In this example, the production control board 1
Each process or equipment is arranged in the up and down direction, and arrangements 26, 27, 28, 29 ... for each process or equipment are clearly specified as work instructions for the day.

[0007]

Conventionally, a production control plate for manually displaying and updating as described above has been conventionally used at a production site, but it is isolated from the production control system of recent computer systems. Therefore, various problems as described below occur.

(1) The data of the production plan and the production result are input to the production control system, but those data must be reflected on the production control board. However, since the conventional production control board is not connected to the computer system, it is necessary to manually transfer the data, and an error may occur at that time, resulting in inconsistency between the two data.

(2) Since the production control board is installed in only one place, it is difficult for all persons concerned to thoroughly understand the contents.

(3) Since there are various sections or processes in the manufacturing department, the extraction conditions and display format of the required information are different for each, but the production control board can only perform fixed display.

(4) When planning a production, load amount, production amount,
It is necessary to consider the amount of inventory, etc., but these need to be calculated separately from the production schedule on the production control board.

The present invention has been made for the purpose of solving the above problems, and provides a computer display production control board which is directly connected to a computer system used in a production control system and can be displayed on a plurality of terminals. With the goal.

[0013]

A computer-displayed production control board according to the present invention includes a first input means for inputting various information necessary for production control, and a newly created production schedule schedule or Second input means for inputting the changed schedule of the production schedule, first calculation means for determining the production schedule based on the information input by both input means, and first calculation means Based on the third input means for inputting information on the actual volume of the production schedule, the production schedule determined by the first calculating means, and the information input by the third input means. The second calculation means for calculating the actual progress status of and the display means for displaying the calculation result of the second calculation means in the form of a graph.

[0014]

In the computer-controlled production control board of the present invention, the first calculation is performed based on various information necessary for production control input from the first input means and the second input means and new or changed arrangements. The production schedule is determined by the means, the actual production schedule of the production schedule input by the third input means and the production schedule determined by the first calculation means are used, and the actual production schedule is determined by the second calculation means. Is calculated, and the result is displayed by the display means in the form of a production control board.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments thereof.

FIG. 4 is a block diagram showing the configuration of a computer display production control board according to the present invention.

In FIG. 4, reference numeral 51 is a CPU,
It functions as the first and second calculation means. A keyboard 52, a ROM 53, a RAM 54, etc. that function as first, second and third input means are connected to the CPU 51. CPU 51
Operates based on various information and instructions input by the operator via the keyboard 52, according to the processing procedure described later. Further, a plurality of display devices (CRT displays, etc.) 61, 62, 63 ... Which function as display means are connected to the CPU 51, and are directly displayed on these display devices 61, 62, 63. The screen that functions as a production control board. And RO
M 53 includes ruled lines or the like for simulating the conventional production control board 1 as shown in FIGS.
Data to be displayed on 62, 63 ... And a program for a calculation procedure described later are stored in advance. The RAM 54 temporarily stores various data input to the CPU 51 via the keyboard 52 and various calculation results based on them.

FIG. 5 is a flowchart showing a processing procedure by the CPU 51. The operation of the computer display production control board of the present invention will be described below with reference to this flowchart.

First, the display devices 61, 62, 63, ... Of the computer display production control board of the present invention are provided with the displays as shown in FIGS. It is assumed that the schedule of the arranged arrangement is displayed.
When a new arrangement or an arrangement change is received in this state (step S1), the CPU 51 determines the production schedule according to the program stored in the ROM 53 in advance, and further determines the load of the production system and the production amount. , The effect on the inventory quantity is calculated (step S2). Then, the CPU 51 redraws the graphs as shown in FIGS. 6, 7, 8, 9, 10, 11 and 12 according to the result calculated in step S2 (step S3). ..

FIG. 6 is a cumulative load graph in which the horizontal axis represents time and the vertical axis represents load. Then, the line showing the capacity of the system and the actual load are displayed, so that it becomes clear whether or not the load is overloaded.

FIG. 7 is a load graph for each process or facility, showing the load of each process or facility (A, B, C ...). From this graph, it is clear whether or not there is a case where some processes or equipments are overloaded even if the cumulative load graph of FIG. 6 is not overloaded.

FIG. 8 is a cumulative shipping graph, in which the horizontal axis represents time and the vertical axis represents shipping amount. Then, since the forecast of the production amount with respect to the production amount schedule is displayed, it is clear whether there is an extreme difference between the two.

FIG. 9 is a graph of the flow number curve, in which the horizontal axis represents time and the vertical axis represents amount. Then, the input amount to the system and the output amount are displayed, and the difference between the two is displayed as the inventory amount (work in process).

FIG. 10 is a daily load matrix graph in which the cumulative load graph shown in FIG. 6 can be collectively displayed for a plurality of targets. In the example shown in Fig. 10, the horizontal axis shows time, and the vertical axis shows various production resources (individual production equipment or personnel), and the daily load of each production resource. The situation is displayed visually. Specifically, yellow when the load status is 80 to 100% (hatched in Figure 10)
When it is 100% or more, it is displayed in red (indicated by cross-hatching in Fig. 10).

By making such a display, the daily load status of each production resource becomes apparent.

FIG. 11 shows the production status of each item when the same item such as an automobile part or a home electric appliance part is repeatedly delivered to a customer over a relatively long period of time. Is displayed in correspondence with the delivery schedule, and the cumulative shipping graph shown in FIG. 8 can be collectively displayed for a plurality of objects. In the example shown in FIG. 11, the horizontal axis indicates time, and the vertical axis indicates the delivered items. For each item, the forecast for the daily production schedule is displayed.

[0027] Specifically, the daily column of each item indicates the delivery instruction quantity from the customer, and the range in which the current inventory can deal with each of the delivery instruction quantity is, for example, Green (indicated by hatching on the lower left in Fig. 11), and the range that can be handled by the volume being ordered is yellow (indicated by cross hatching in Fig. 11),
The range that can be handled by the material inventory is shown in blue (indicated by hatching in the lower right of Fig. 11).

By performing the display as shown in FIG. 11, it is possible to judge at a glance the risk of the material being out of stock. In the example shown in FIG. 11, it can be seen that no material has been arranged for the production of item 1 after July 7. Further, if the materials are arranged in the order of being out of stock, more effective display can be performed.

FIG. 12 is a DC value graph showing how the requested delivery date from the customer is satisfied under the current schedule. The DC (Delivery Control) value is a production quality evaluation method adopted by the applicant of the present application.The achievement rate of the set delivery date (delivery achievement achievement score) and the variation in the actual delivery date with respect to the set delivery date (delivery control) It is a value that is multiplied by the (Score), and not only the delivery delay is a problem, but also the idea that there is a problem with the production constitution even if actual production is completed earlier than the delivery date. ..

More specifically, FIG. 12 shows a delivery date lead / lag histograph, and a delivery date achievement score obtained by a predetermined calculation method (7 in the example of the histograph in FIG. 12).
4.8) and the delivery schedule management score (6 in the example of the histogram in Fig. 12)
3.4) and the DC value that is the product of both (47.4 in the example of the histograph in Fig. 12) are displayed.

The operator checks each such graph to determine whether or not the production system is adversely affected, and if necessary, changes the schedule of individual arrangements (step S4). In this case, the processes of steps S2 and S3 described above are repeated. Then, when the production schedule is determined, it is displayed in the form of a production control plate on each of the display devices 61, 62, 63 ... (Step S7). In addition, when the production progress status or volume in each department is input,
(Step S6), the CPU 51 reflects the data on the graphs and the production control boards displayed on the display devices 61, 62, 63 ... (Step S6).

FIG. 13 is a schematic diagram showing an example of actual display on the screen of the display devices 61, 62, 63 ... By the computer display production control board of the present invention. In FIG. 13, dates are plotted on the horizontal axis, and holidays are indicated by hatching. Then, the determined schedule of each arrangement to which the lot number is assigned is displayed, and the progress status and the like are shown in each.

By the CPU 51 performing the above-described processing, the same display as that of the conventional production control board manually displayed is displayed on each of the display devices 61, 62, 63. Therefore, for example, it becomes possible to use the same production control board in each department in the factory, and it is also possible to adopt the display form unique to each department even if the display content itself is the same. Furthermore, since it is possible to directly connect to a computer system that manages the entire production, various information can be displayed on the production control board in real time.

The display examples shown in FIGS. 6 to 12 and FIG. 13 are merely examples, and it goes without saying that other displays may be performed.

[0035]

As described above in detail, according to the computer-displayed production control board of the present invention, the operator in charge of process control can predict the load, production volume, inventory quantity, etc. of the production system at a glance. It is also possible to make a production plan while simultaneously, and it is also possible to display the current production plan, progress status, and production status in each department in a necessary state, so that each department can follow the common situation recognition. Can operate independently, which has the effect of improving the level of production management as a whole.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a basic form of a progress control plate.

FIG. 2 is a schematic diagram showing a delivery date management plate.

FIG. 3 is a schematic view showing an upright management plate.

FIG. 4 is a block diagram showing a configuration of a computer-displayed production control board according to the present invention.

FIG. 5 is a flowchart showing a processing procedure by a CPU.

FIG. 6 is a schematic view showing a cumulative load graph displayed by a computer-displayed production control board of the present invention.

FIG. 7 is a schematic view showing a load graph for each process or facility displayed by the computer-displayed production control board of the present invention.

FIG. 8 is a schematic diagram showing a cumulative shipping graph displayed by the computer-displayed production control board of the present invention.

FIG. 9 is a schematic view showing a graph of a flow number curve displayed by a computer-displayed production control board of the present invention.

FIG. 10 is a schematic view showing a daily load matrix graph displayed by the computer-displayed production control board of the present invention.

FIG. 11 is a schematic view showing a load matrix graph for each item displayed by the computer-controlled production control board of the present invention.

FIG. 12 is a schematic diagram showing a DC value graph displayed by a computer-displayed production control board of the present invention.

FIG. 13 is a schematic diagram showing an actual display example on the screen of the display device by the computer display production control board of the present invention.

[Explanation of symbols]

 1 Production control board 51 CPU 52 Keyboard 53 ROM 54 RAM 61, 62, 63 ... Display device

Claims (1)

[Claims] 1. A first input means for inputting various information necessary for production control, and a second input means for inputting a schedule of a newly created production schedule or a schedule of a changed production schedule. Input means, first calculation means for determining a production schedule based on the information input by the both input means, and for inputting information on the actual volume of the production schedule determined by the first calculation means Second input means for calculating the actual progress of the production schedule based on the production schedule determined by the first calculation means and the information input by the third input means.
And a display unit for displaying the calculation result of the second calculation unit in the form of a graph.