JP2002014716A - System and program for production planning and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optimum small schedule planning system for orders which completes production within a final delivery period by arranging orders in the order of their delivery periods, calculating the final delivery period of necessary components according to a lead time, and selecting request destinations of component production in consideration of costs and the lead time. SOLUTION: The system is equipped with a means which receives orders for a final product, a means which extracts orders whose received delivery periods are within a certain period, a means which generates a production plan for the product by arranging the orders so that the production is completed within the delivery period, and a means which generates production plans for the components by arranging orders for components in order according to the lead time of the components needed to produce the arranged orders of the product.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production planning system for producing a production plan of a product, a production planning program, and a recording medium.

[0002]

2. Description of the Related Art Conventionally, orders of orders from sales offices (customers) are compiled at a head office, stocks or products under production are allocated, and a medium-schedule production plan is prepared for the remaining orders (for example, a medium-schedule production plan in weekly units). Then, a small-schedule production plan (for example, a small-schedule production plan on a daily basis) is drafted based on this.

[0003]

For this reason, in a factory or the like, a small-schedule production plan is drafted based on a medium-schedule production plan. There was a problem that it was not possible to make a good production plan due to restrictions. In order to make a good small-schedule production plan, there was a problem that the middle-schedule production plan had to be ignored.

[0004] Further, when a small-schedule production plan is planned at a factory, if a part that cannot be produced by the facility to be planned is required, the required quantity of the part is simply output as an order, so that production at another factory or the like is possible. There is also a problem that it is not possible to automatically select an appropriate equipment in consideration of the load state of the equipment and the transportation cost and to make a production request to make a production schedule for the small schedule.

[0005] The present invention solves these problems,
Arrange the order of the final product according to the delivery date, calculate the final delivery date of the necessary parts based on the lead time, make a small schedule production plan based on the final delivery date, or request the parts to another factory. In the case of production, select a factory with a small cost and make a small-schedule production plan based on the final delivery date taking into account its lead time. The purpose is to formulate an optimal small-schedule production plan in time for the last minute delivery in consideration of the lead time, and to create an optimal small-schedule production plan in consideration of the cost and lead time at the time of production request to other factories. And

[0006]

Means for solving the problem will be described with reference to FIG. In FIG. 1, the head office 1
Is to accept orders from sales offices (customers), allocate inventory and products in production, and make production plans for the remaining orders after allocation. It comprises planning means 2 and the like.

[0007] The planning means 2 drafts a production plan for an order. Next, the operation will be described.
The head office 1 receives the order of the final product from the sales office (customer), extracts the order whose delivery date is within a certain period from the received order, and arranges the order sequentially so that the planning unit 2 can meet the delivery date. A product production plan is generated in accordance with the order of the arranged products, and a part production order is generated by sequentially arranging the order of the parts based on the lead time of the parts necessary for producing the order. ing.

At this time, when parts necessary for producing a product or part order are produced by equipment of another factory, one or more of production costs, distribution costs, and lead times are considered. The optimal equipment is selected, and the order of the parts is sequentially arranged based on the lead time.

[0009] The fixed period is set to one week, and the order of parts is arranged on a daily basis. In addition, orders whose delivery date is within a certain period are extracted, and the extracted orders are put together in a predetermined quantity unit or an order of an integral multiple of the predetermined quantity unit so as to be in time for each delivery date, and the production is performed in an efficient production unit. .

Therefore, the final product order is arranged based on the delivery date, the final delivery date of the required part is calculated based on the lead time, and a small-schedule production plan is made based on the final delivery date. When requesting production from other factories, select a factory with low cost and make a small-schedule production plan based on the final delivery date taking into account the lead time, so that the lead time at the factory and other Considering the cost and lead time when requesting production at a factory, it is possible to formulate an optimal small-schedule production plan in time for the last minute delivery, and at the same time the cost and lead time when requesting production at another factory It is possible to formulate an optimal small-schedule production plan in consideration of the above.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment and operation of the present invention will be described in detail with reference to FIGS.

FIG. 1 shows a system configuration diagram of the present invention.
In FIG. 1, a headquarters 1 receives an order of an order from a sales office (customer), allocates inventory and products in production, drafts a production plan for the remaining orders after the allocation, and plans the production. This is for notifying a factory of a plan or the like (computer system), and in this case, is composed of a plan making means 2 and the like.

The planning means 2 drafts a production plan for the order remaining after the inventory and the products under production are allocated to the order of the order from the sales office (customer) (FIGS. 2 to 5). Will be described later).

The order 3 is an order in which the stock and the product under production are allocated to the order of the order from the sales office (customer), and the remaining products need to be produced. Factory 4 is Factory A
To N, each of which is a factory for producing products and parts by equipment according to a production plan.

Next, the operation of the configuration shown in FIG. 1 will be described. (1) The head office (head office computer system) 1 receives an order for a product from a sales office (customer) not shown, allocates the stock and the product in production, and extracts the remaining illustrated order 3 that needs to be produced. . Here, the remaining orders are extracted as shown below.

Product X: 100 units Delivery date: April 24 ("week starting from April 24")
(The same shall apply hereinafter.) (2) The planning means 2 of the head office 1 performs the following production planning based on the order (product X: 100 pieces, delivery date: April 24) extracted in (1). Planning.

Production plan: Product X at the facility in factory A:
100 pieces, delivery date: April 24, and a part α required for producing the product X: 100 pieces of equipment in the factory A with a lead time of 6 days (6 days from the start of production of the product X) A production plan for producing the component α with a lead time of six days before the completion of the production is drawn up. Thus, for example, a small-schedule production plan shown in FIG. 3E can be made based on a medium-schedule production plan shown in FIG.

Production plan: Product X at the facility in factory A:
100 pieces, delivery date: April 24, and 100 parts required for producing the product X: 100 pieces of equipment at another factory B Delivery date: April 24, lead time at the factory B (Product X: 100 at factory A, delivery time: 4
A lead time at which the date and time required for transportation are added in the other factory B in time for production on March 24 is calculated, and a production plan for producing the component α with the calculated lead time is drafted. As a result, it is possible to formulate a production plan in which a product X: 100, a delivery date: April 24, and a necessary component α are produced by the lead time calculated by the other factory B using the equipment of the factory A at the delivery date: April 24. It becomes possible.

Production plan: Similar to the production plan,
The product in the factory A is manufactured with the product X: 100 pieces, the delivery date: April 24, and the parts α required to produce the product X: 100 pieces with the other factory N equipment, the delivery date: April. 24
It is possible to formulate a production plan to produce the component α in the lead time in the factory N in a day.

As described above, based on the order that needs to be produced, for example, the product X: 100, the delivery date: April 24, the final product X: 100, the delivery date: April 24, is produced at the factory A, and A production plan is planned so that the production of the component α required for producing the product X is completed at the factory A, for example, with a lead time of 6 days, and the transportation date and time are considered at the other factories B and N. Efficient production, in which a production plan is drafted to complete the production of the part α in the lead time, so that the part α is sequentially produced in the last minute lead time according to the production schedule of the final product X. It is possible to make a plan automatically. The details will be sequentially described below.

FIG. 2 is a flowchart illustrating the operation of the present invention. This is a detailed operation explanation flowchart of the procedure for drafting the production plan of FIG. In FIG. 2, S1
Develops mid-schedule plan. For example, the following mid-schedule production plan of FIG.

Factory A Product X: 100, Delivery: April 24. Parts α: 100, lead time: 6 days This is the parts required to complete the production of 100 final products X in the facility of Factory A within the week starting from the delivery date of April 24, and to produce product X. α, 100 pieces are produced with a lead time of 6 days (production of the component α is completed 6 days before the production of the product X is started).

In step S2, one final product is taken out. Here, for example, the final product X: 1 produced by the facility of the factory A is X: 1.
00, delivery date: Take out April 24. In S3, the order of the final product is placed at the end of the delivery week. For example, as shown in FIG.
Place the final product X: 100 with justification within the week of the day.

In step S4, the final delivery date of the component is calculated based on the lead time of the final product and the component. For example, from the product X (April 24) of FIG. 3 (e) arranged in S3, the final delivery date of the part α is calculated here, April 18 which is six days earlier than the lead time.

In step S5, it is determined whether or not it needs to be made in another factory. This determines whether parts need to be made in a factory different from the factory that produces the final product. In the case of YES, the process proceeds to S6. In the case of NO, the process proceeds to S9.

In step S9, a small-schedule production plan for the component α is drawn forward with the final delivery date of the component as the delivery date. For example, a small-schedule production plan for the component α is sequentially prepared in the forward direction with the final delivery date of April 18 of the component α in FIG.

In S6, since it is determined that parts need to be produced in a different factory from the factory that produces the final product in YES in S5, it is determined whether there are a plurality of factories. If yes,
In S7, the factory with the lowest cost (factory with the lowest transportation cost and production cost) is determined, and the process proceeds to S8. On the other hand, in the case of NO in S6, it is determined that the number of factories is one, so the process proceeds to S8.

In step S8, the lead time is recalculated in accordance with the factory. This means that in addition to the lead time for completing the production of parts before the specified number of days before starting production of the final product, the lead time at the other factory is calculated by adding the number of days of transportation from another factory to the factory that produces the final product. Calculate (recalculate). Then, the final delivery date of the component determined by the lead time calculated in S9 is calculated, and a small-schedule production plan for the component α (small-schedule production plan in another factory) is drawn forward from the final delivery date.

As described above, based on the medium-schedule production plan (the number of final products, the delivery date, the number of parts thereof, and the lead time (for example, (d) in FIG. 3)), the small-schedule production plan (for example, FIG. (E)), the production plan of the part can be automatically drafted in time for the production of the final product.

FIG. 3 shows an explanatory diagram of the present invention. FIG. 3A shows an example of a middle schedule production plan and a small schedule production plan.
Here, it is shown below.

Mid-schedule production plan Small-schedule production plan Remarks ・ Purpose Equalization of load over the medium to long term Preparation of instructions to manufacturing sites ・ Plan period 3-6 months 1 month ・ Packet size 1 week 1 day ・ Part lead time 1 Weekly unit Daily unit Normal packet size unit ・ Parts development Yes Yes ・ Process development No Yes ・ Load calculation method Daily production base for each process for each product for each factory Daily production base for daily production Figure 3 (b) shows products and parts An example of the configuration will be described. Here, the illustrated configuration example indicates that the final product X is produced from one component α.

FIG. 3C shows an example of a mid-schedule production plan (conventional). In this conventional medium-scheduled production plan example, a medium-scheduled production plan is prepared by setting the lead time between the final product X and its part α in FIG. 3B to two weeks (delivery date of the final product X). : Since the week of April 24, the week of April 10 two weeks before that was planned as the delivery date (delivery week) of the parts.) If a small-schedule production plan is created based on the conventional medium-schedule production plan,
For example, the schedule of the part α is drafted in the week of the month of the month of the 10th of the month, and the production of the final product X is barely completed in comparison with the small-schedule production plan of the present invention of FIG. However, there is a disadvantage that a small-schedule production plan cannot be established and an inefficient small-schedule production plan is drawn up.

FIG. 3D shows an example of a mid-schedule production plan of the present invention. An example of the medium-schedule production plan of the present invention is shown in FIG.
(B) is a mid-schedule production plan in which the lead time between the final product X and its part α is 6 days (delivery date of the final product X: April 24, lead time 6 days Based on this). When a small-schedule production plan is drafted based on the medium-schedule production plan of the present invention, the small-schedule production plan is defined as a final delivery date of the part α, which is April 18 from April 24, 6 days before the lead time. By arranging the schedule of the parts α in the forward direction, a small-schedule production plan of the present invention shown in FIG. 3 (e) described later can be made, based on the conventional medium-schedule production plan of FIG. 3 (c). As compared with the case where a small-schedule production plan is prepared, the production schedule of the part α can be planned in line with the last production of the final product X, and an efficient small-schedule production plan can be prepared. It becomes possible.

FIG. 3E shows an example of a small schedule production plan. This is the mid-schedule production plan of the present invention shown in FIG. 3D (product X: 100, delivery date: April 24, part α: 10
0, lead time: 6 days), and placed as the first April 24 of the week of the delivery date of the final product X, and 4 days from the first April 24 of the week of the delivery date to six days before the lead time.
18 is arranged in the forward direction as the final delivery date of the component α (see S3 to S9 in FIG. 2). Similarly, when a small-schedule production plan is prepared for two orders (final product X, 100 and its component α, 100), the plan is made as shown in the figure.

As described above, by automatically drafting the small-schedule production plan of FIG. 3E based on the medium-schedule production plan of FIG. An efficient production schedule for the part α can be automatically drafted according to the schedule.

FIG. 4 shows an example of an order of the present invention. FIG. 4A shows an example of a product order. This product order is an example of the order of the final product, in which the following information shown is set.

Factory name: name of the factory that produces the final product Product name: the name of the final product Quantity: the quantity to be produced Price: product price Delivery date: the delivery date of product production Raw materials / parts: final product Raw material / part name required for production ・ Raw material / part number: Number of raw material / part required for producing final product ・ Raw material / part delivery date: Raw material / part required for producing final product FIG. 4B shows an example of a part order. This part order is an example of the order of parts necessary for producing a product, and is set with the following information shown in the figure.

Factory name: name of the factory that produces the part. Part α: the name of the part. • Quantity: the quantity to be produced. • Price: the price of the part. • Lead time: the number of days from the completion of the part to the start of production of the product (lead time). -Raw materials / parts: Raw materials / part names required to produce parts-Raw materials / part prices: Raw material / part prices-Raw materials / parts delivery dates: Raw materials / parts required to produce parts
Parts delivery date Based on the information set for the product order / parts order as described above, the above-described medium-schedule production plan and small-schedule production plan can be drafted.

FIG. 5 is an explanatory diagram of the present invention. FIG. 5A shows a configuration example of a product and a part. Here, the following configuration shown is shown.

The product X has one component α and one component β.
Can be produced from one. -The product Y can be produced from two parts β. -The product X and the component β can be produced only in the factory A.

The product Y and the component α can be produced in the factories B and C.・ Medium-scheduled production plans are planned for all factories.・ Small-schedule production plans are prepared for each factory.

FIG. 5B shows an example of a mid-schedule production plan. This is based on the plan of selling 100 products X and 100 products Y in the week of April 24 in the configuration of FIG. It is a plan.

In the factory A, the product X is delivered 10 times a week on April 17.
Produce 0.・ A 100 parts β are produced at the factory A in the week of April 10. -100 pieces of product Y are produced at the factory B in the week of April 17th.

At the factory B, the part α is changed to 30 on the week of April 10.
Produce 0. At this time, the following necessary information is drafted in addition to the above-described planning results.・ Delivery date: On April 25, 100 products X will be sold.

Delivery date: On April 25, 100 products Y will be sold. -Delivery date: April 17, 300 parts α are required (needed to produce product X).

Delivery date: On April 17, 100 parts β are required (needed to produce products X and Y).
Here, the required information of the product is diverted from the sales plan, and the required information of the part is used in the mid-schedule production plan in the work requiring the part (production of products X and Y for part α, production of product X for part β). ).

FIG. 4C shows an example of a small schedule production plan. This is a small schedule production plan generated as described below based on the information of FIG. The product X can be produced from one component α and one component β.

The product X and the component β can be produced only in the factory A. -The component α can be produced in the factories B and C (factories B and C
Now they produce other products and parts.)

A production plan is prepared for each factory. Here, it is assumed that a plan to produce 100 pieces of the product X at the factory A on April 30 is made. Also, at this time, the part β is also set to 10
Suppose that a plan to produce 0 pieces is made.

On the other hand, another part α required for the production of the product X cannot be produced at the factory A.
Is transmitted to the factory B or the factory C on April 30 according to the production of the product X.

The selection between the factory B and the factory C is automatically determined in consideration of the load situation before April 25, the transportation cost from the factory A, and the like. When the required information (information such as the delivery date and quantity of the product, the lead time, etc.) is transmitted, a small-schedule production plan is drafted based on the information in accordance with S6 to S9 of FIG. 2 described above (see the description of FIG. 2). .

[0052]

As described above, according to the present invention,
The final product order is arranged based on the delivery date, the final delivery time of the necessary parts is calculated based on the lead time, and a small-schedule production plan is drafted based on the final delivery time, or the parts are transferred to another factory. In the case of production by request, a factory with a small cost is selected, and a small-schedule production plan is created based on the final delivery date considering the lead time. Considering the cost and lead time when requesting production at a factory, an optimal small-schedule production plan can be automatically drafted to meet the final delivery date, while considering the cost and lead time at the time of requesting production at another factory. Optimized small-schedule production plan.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of the present invention.

FIG. 2 is a flowchart illustrating the operation of the present invention.

FIG. 3 is an explanatory diagram of the present invention.

FIG. 4 is an example of an order of the present invention.

FIG. 5 is an explanatory diagram of the present invention.

[Explanation of symbols]

 1: Headquarters (Headquarters computer system) 2: Planning method 3: Order 4: Factory

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takaaki Yamazaki 1-10-1 Nishiki, Naka-ku, Nagoya City, Aichi Prefecture Inside Fujitsu Chubu Systems Co., Ltd. (72) Inventor Hirotaka Ito 1-Nishiki, Naka-ku, Nagoya City, Aichi Prefecture No. 10-1 Fujitsu Chubu Systems Co., Ltd. (72) Inventor Atsushi Sakurai 4-1-1 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Inside Fujitsu Limited (72) Inventor Yoshinori Shioda, Nakahara-ku, Kawasaki City, Kanagawa Prefecture 4-1-1 Odanaka Fujitsu Limited (72) Inventor Shohei Kirita 1-353 Danbara Minami, Minami-ku, Hiroshima-shi, Hiroshima Prefecture F-term in Fujitsu China Systems Co., Ltd. 3C100 AA05 AA36 BB11 BB21 BB39

Claims (5)

[Claims] 1. A production planning system for generating a production plan of a product, a means for receiving an order of a final product, a means for extracting an order whose delivery date is within a predetermined period from the received order, Means for sequentially arranging the above-mentioned orders to generate a product production plan, and arranging the order of the parts based on the lead time of the parts necessary for producing the order with respect to the arranged order of the products. Means for sequentially arranging parts to generate a part production plan. 2. The means for generating a production plan of a part selects an optimum facility in consideration of at least one of a production cost, a distribution cost, and a lead time, and selects the optimum equipment based on the lead time. 2. The production planning system according to claim 1, wherein the orders are sequentially arranged. 3. The production planning system according to claim 1, wherein the parts are arranged on a daily basis based on the order of the parts arranged in the production plan of the parts. 4. A means for receiving an order of a final product, a means for extracting an order whose delivery date is within a predetermined period from the received order, and sequentially arranging the order so as to meet the delivery date. Means for generating a production plan for the product, and means for sequentially arranging the order of the parts based on the lead time of the parts necessary for producing the order for the arranged product and generating a production plan for the parts And a computer-readable recording medium recording a program to function as a computer. 5. A means for receiving an order of a final product, a means for extracting an order whose delivery date is within a predetermined period of time from the received order, and sequentially arranging the order so as to meet the delivery date. Means for generating a production plan for the product, and means for sequentially arranging the order of the parts based on the lead time of the parts necessary for producing the order for the arranged product and generating a production plan for the parts And a production planning program to function as.