JP2798456B2 - Educational device for MRP calculation - Google Patents

Description

The present invention relates to an educational device constructed using an electronic device such as an information processing device, and particularly to an AMCS (Advanced Material Control).
rol System) -1 / MSP (Material, requirements plannin
g Seiban Package) MRP (Material Requirements Plannin) for production management systems such as trial packages
g) It relates to an MRP calculation education device used when educating a person who operates the system about the concept of calculation and the like.

[Conventional technology]

In the increasingly sophisticated and diversified society in recent years, it has become necessary to reduce the number of products and shorten the life of the product cycle. In order to respond to this demand, more flexible production management realized by information processing equipment in the manufacturing and equipment industries There is a tendency to introduce a system.

When introducing such a production management system, it is necessary to adequately educate its operators and others.However, in many conventional systems, textbooks describing the concept of the system are distributed to students and MRP calculation is performed. In the case of learning the function of the system through practical training, the lecturer compares the calculation result written on the paper etc. with the correct answer calculated by the lecturer on the desk, This type of education has been performed by traditional teaching methods, such as instructors pointing out for each student or pondering themselves. In addition, MRP calculation is to calculate (plan) what, when, how many, etc. are necessary for all the materials that make up the product based on information of the product (item), production plan, etc. Say.

[Problems to be solved by the invention]

Although it is possible to teach the concept of MRP calculation and the like by the above-mentioned conventional teaching method, there are the following problems.

(1) It takes time to manually compare the expected value calculated by the student with the correct answer value and the correct answer value, and there is a risk of performing an incorrect evaluation.

(2) When training in MRP calculation for a wide range of cases where correct values are not prepared, it takes time to calculate correct values. This is particularly remarkable when a production plan, part information, and the like are sequentially changed so that the influence is understood.

The present invention has been made in view of such circumstances, and its purpose is to immediately and accurately obtain the correct answer value even in cases where the correct answer value is not prepared, and to change the student's expected result value. It is an object of the present invention to provide an MRP calculation educational device capable of automatically checking a check result and displaying the check result and the correct answer value to a student immediately.

[Means for solving the problem]

In order to achieve the above object, the educational device for MRP calculation according to the present invention includes an input device, a display device, an MRP calculation unit, and a comparison unit. After displaying them on the display device in response to the input of the expected values, the correct part value is calculated by the MRP calculating means based on the input part information and the production plan, and the correct value and the result expected value are calculated. Are compared by the comparing means, and the result of the comparison and the correct answer value are displayed on the display device.

[Action]

In the training device for MRP calculation of the present invention, when a student inputs part information, a production plan, and an expected value of the MRP calculation obtained by himself / herself from the input device, the display device displays them, and the MRP calculation means receives the input. The correct value is calculated based on the part information and the production plan, and the comparing means compares the correct value with the expected result input from the student of the correct value, and the display device displays the comparison result and the correct value. Present to students.

〔Example〕

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

FIG. 1 is a main block diagram of an embodiment of an MRP calculation education apparatus according to the present invention. As shown in the figure, the training device for MRP calculation of this embodiment includes a processing device 1, an input device 2 such as a keyboard, a display device 3 such as a CRT, and an external storage device 4 such as a magnetic disk device. The processing device 1 includes an input control unit 11, a display control unit 12, a storage unit 13, an MRP calculation unit 14, a result display timing control unit 15, a comparison unit 16, and a dialog processing unit 17.

FIG. 2 is a flowchart of a processing example of the processing apparatus 1 of FIG.
5 to 5 show examples of the contents of the screen image of the display device 3 at each time point. Hereinafter, the configuration and operation of this embodiment will be described with reference to the drawings.

When the student starts the training of the MRP calculation, when the instruction is input from the input device 2, the instruction is transmitted from the input control unit 11 to the interaction processing unit 17, and the interaction processing unit 17 stores the instruction in the external storage device 4. The stored initial state of the screen image is read and written to the storage unit 13. The display control unit 12 is a storage unit
Control is performed such that the screen image information shown in 13 is always displayed on the display device 3, whereby an initial screen image is displayed on the screen of the display device 3 (S1 in FIG. 2).

Next, if the participant considers the part information and the arranged parts, the cursor is placed on a predetermined portion of the display device 3 in order of the arranged number and the production plan and input from the input device 2. At this time, these pieces of input information are received by the input control unit 11, stored in the storage unit 13, and displayed on the display unit 3 by the display control unit 12 (S2, S3, S3 in FIG. 2).
Four). Here, the part information, the number of arranged parts, and the production plan specifically mean the following.

○ Part information Item information of parent item and child item.

For example, a fixed LT (lead time) value indicating the number of days from the arrangement of the parent item (item A) to the receipt is the item information of the parent item, and when these are input, they are displayed as 100 in FIG. . The arrangement type, rounding amount, and the like of the child item (item B) are item information of the child item, and when these are input, they are displayed as 101 in FIG.

Configuration information of parent item and child item.

The number of units indicating the number of child items required to make the parent item, and the loss (assembly failure) generated in making the parent item are configuration information. It is displayed as shown at 102.

○ Arranged number This is the number of child items that have already been arranged, and is entered in the corresponding column of the “arranged” row in the result column 103 and the expected result column 104 in FIG. When the number of arranged orders is not taken into consideration, the processing apparatus 1 automatically sets “0” in all columns.

○ Production plan This refers to the planned number of parent items. The planned number of parent items is entered in the corresponding column of the plan column 105 in FIG. Note that one column of the plan column 105, the result column 103, and the expected result column 104 corresponds to the lead time.

Next, the student himself / herself based on the above data
The MRP calculation is performed to obtain the required number of child items, the planned number of child items, and the effective stock of the child items, and the obtained expected results are displayed in predetermined rows and columns of the expected results column 104 on the screen of the display device 3. The input is performed from the input device 2 by pointing the cursor or the like. Also at this time, the input information from the input device 2 is stored in the storage unit 13 via the input control unit 11, and the display control unit 12 inputs the information to the location where the input is instructed, as shown in the result prediction column 104 in FIG. The data is displayed (S5 in FIG. 2).

Next, the student completes the input of the above (1) and the input device 2
When the above confirmation key is pressed, the information is transmitted to the dialog processing unit 17 via the input control unit 11, and the dialog processing unit 17 activates the MRP calculation unit 14 and the result display timing control unit 15.

The activated MRP calculation unit 14 calculates the required number of child items, the planned number of child items, and the effective stock of child items by performing MRP calculation based on the above data stored in the storage unit 13, The result is transmitted to the result display timing control unit 15, and the result display timing control unit 15 writes the data into the storage unit 13 with a predetermined display interval so that the correct answer value is displayed in the required amount development order of the MRP calculation logic. The correct answer values are sequentially passed to the comparison unit 16 to check the expected value as a result of the input by the student. The comparing unit 16 compares the correct value transmitted from the result display timing control unit 15 with the expected result stored in the storage unit 13 and stores a message indicating the comparison result in the storage unit 13. By the above processing, the calculation of the correct answer value and the display in the result column 103 as shown in FIG.
(S6 in the figure), the comparison between the correct answer value and the expected result value, and the display of a message in the evaluation column 106 as shown in FIG. 5 (S7 in FIG. 2) are performed.

Note that the MRP calculation unit 14 calculates the required number of child items based on the planned number of parent items, the item information of the parent item in it, and the configuration information of the parent items. The planned number of child items is calculated based on the arranged number of items and the item information of the child items in the middle, and the calculated planned number of child items, the inventory on hand of the child items in the middle, and the calculated Required number,
The effective stock of the child item is calculated based on the number of arranged child items. The arrow extending from the column of the plan column 105 to the column of the result column 103 in FIG. 5 indicates the lead time (LT), and by displaying such an arrow,
Students can be informed of the concept of lead time.

Next, when the student presses the end key on the input device 2 in order to finish the training, the treatment device 1 ends the processing (S8 in FIG. 2). When a change instruction is input from the input device 2 in order to change the data set in the above (1) and check the effect thereof, the input control unit 11 responds to the change instruction.
The contents of the storage unit 13, that is, the display of the display device 3 are changed (S 2 to S 5 in FIG. 2), and the MRP calculation unit 14 and the result display timing control unit 15 are started via the dialog processing unit 17, and again Calculation and display of correct answer value for MRP calculation (S in Fig. 2)
6), comparison between the correct answer value and the expected result value, and display of the result (S7 in FIG. 2) are performed.

If the child item is composed of other parts,
The practice of MRP calculation for it can be carried out in the same manner as above.

〔The invention's effect〕

According to the training device for MRP calculation of the present invention described above, (1) When the student inputs the predicted MRP calculation result together with the part information and the production plan, the MRP calculation result is displayed on the display device, and then the MRP calculation is immediately performed. The correct answer value is calculated by the calculating means, and the result of comparison between the correct answer value and the expected value input by the student is displayed on the display device, so that accurate evaluation can be performed promptly and the effect of the training is improved. .

(2) A wide range of MRs for cases where correct values have not been prepared
Practice of P calculation can be performed easily. In particular, since the processing is performed in an interactive manner, correct values and the like are immediately displayed when a production plan, part information, or the like is changed, so that it is easy to understand the image of a net change and the influence of the information change.

(3) MRP calculation process such as lead time can be visually verified.
Very helpful in understanding RP concerns.

And the like can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of a main part of an embodiment of the present invention, FIG. 2 is a flowchart showing an example of processing of the processing device 1, and FIGS. 3 to 5 are screen images of the display device 3 at each time. It is a figure showing the example of contents. In the figure, 1 ... processing device 2 ... input device 3 ... display device 4 ... external storage device 11 ... input control unit 12 ... display control unit 13 ... storage unit 14 ... MRP calculation unit 15 ... Result display timing control unit 16: Comparison unit 17: Dialogue processing unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-251051 (JP, A) JP-A-63-38172 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G09B 7/02-7/04

Claims (1)

(57) [Claims] An input device, a display device, an MRP calculation means, and a comparison means, and in response to input of component information, a production plan, and an expected result of the MRP calculation from the input device, send them to the display device. After displaying, the entered component information,
A configuration in which the correct value is calculated by the MRP calculation means based on the production plan and the correct value and the result expected value are compared by the comparison means, and the comparison result and the correct value are displayed on the display device. Educational equipment for MRP calculation.