CN109799793B

CN109799793B - Production plan making device and production plan making method

Info

Publication number: CN109799793B
Application number: CN201811178005.8A
Authority: CN
Inventors: 田中将贵; 友部笃志; 桥本薰; 志甫有真
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2017-11-17
Filing date: 2018-10-10
Publication date: 2021-10-08
Anticipated expiration: 2038-10-10
Also published as: CN109799793A; JP2019091374A; JP6869166B2

Abstract

The invention provides a production plan making device and a production plan making method, which can accurately estimate the area occupied by the product working procedure and make a production plan with good space efficiency. The production plan making device inputs order information related to an order of a product, calculates an occupied area including an arrangement size and a working space for each object based on object size information storing information related to a size of an object arranged in a working area used in a process of the ordered product and space restriction information storing information related to a working space of the object, generates occupied area information, determines whether or not the working spaces in the occupied areas of the objects corresponding to the same order information overlap each other based on information on whether or not the space restriction information can overlap each other, integrates the occupied areas of the objects based on a determination result, and updates the occupied area information based on an integration result.

Description

Production plan making device and production plan making method

Technical Field

The present invention relates to a production plan making device and a production plan making method.

Background

For example, in the case of manufacturing a large product such as a console, it is necessary to make a production plan for effectively using the work area of a factory.

For example, patent document 1 discloses a project planning support device that: a construction plan support device for supporting a facility for planning a construction work or an update work of a device including a plurality of components constructed in a construction area, the construction plan support device comprising: a database unit 2 that stores actual data 5 of a plurality of projects that have been performed in the past; an input unit 1 that inputs a pattern and a project site of a project object that is the same as or similar to a predetermined project; an actual data extraction means 11 for extracting actual data of a past project corresponding to the style and the project site of the project object input by the input means 1 from the database means 2; and a schedule creating unit 12 that creates a process schedule in which the work content of the predetermined project and the time-series order thereof are set, using the actual data extracted by the actual data extracting unit 11.

Patent document 1: japanese patent laid-open publication No. 2011-170496

Disclosure of Invention

A social infrastructure system product such as a console is generally configured by a plurality of devices, and is designed according to a reservation order of a customer for designing, manufacturing, testing, and shipping.

The plurality of devices constituting the console are different in production resources such as production lines, test areas, and facilities depending on the types of the devices, and competition of production resources can occur between the respective processes in the components (various consoles and various units) of the ordered console.

In particular, in the case of a large product such as a console, it is important to secure not only the occupied area of the product itself but also equipment (a test apparatus or the like) and work space required for each process when performing manufacturing and testing, and to make a production plan satisfying these work area restrictions in advance, in order to effectively utilize the work area.

As a technique for creating a work plan, for example, patent document 1 describes the following method: when creating a process schedule of a new project, a plan is created by referring to the areas of persons, equipment, and occupied areas required for each process, using actual data on similar order cases actually performed in the past.

However, since the order of the console or the like is different depending on the customer and the place of arrangement, and the product is received in combination of a plurality of types of products, the order is not limited to cases similar to the case ordered in the past.

In the test process of the console or the like, since a plurality of devices constituting the console or the like are arranged and wired to perform a test, if only the area of the occupied area necessary for the test of each device is increased, the work space may be estimated to be larger than necessary. As a result, there is a fear that the working area in the factory is insufficient, and a production plan of an advanced process is made, thereby extending the production cycle from the order to the shipment. Further, by extending the production cycle, the opportunity for order loss, an increase in stock of semi-finished products, and the like can be caused.

The present invention has been made in view of such a situation, and an object thereof is to accurately estimate an area occupied in a product process and to make a production plan with high space efficiency.

The present application includes a plurality of methods for solving at least part of the above problems, and examples thereof will be given below. In order to solve the above problem, a production plan making device according to an aspect of the present invention includes: an input unit that inputs order information relating to an order for a product; a storage unit that stores object size information including information on a size of an object arranged in a work area used in a process of ordering the product, and space restriction information including information on a work space of the object; an occupied area calculation unit that calculates an occupied area including a layout size and the work space for each object based on the object size information and the space restriction information, and generates occupied area information based on a calculation result; and an overlapping area determination unit configured to determine whether or not the work spaces in the occupied areas of the objects corresponding to the order information overlap each other, based on overlap-enabled information of the space restriction information, to integrate the occupied areas of the objects based on a determination result, and to update the occupied area information based on an integration result.

According to the present invention, the area occupied in the product process can be accurately estimated and a production plan with good space efficiency can be made.

Problems, structures, and effects other than those described above will become more apparent by describing the following embodiments.

Drawings

Fig. 1 is a block diagram showing a configuration example of a production plan making apparatus according to an embodiment of the present invention.

Fig. 2 is a diagram showing an example of order information.

Fig. 3 is a diagram showing an example of product size information.

Fig. 4 is a diagram showing an example of the device size information.

Fig. 5 is a diagram showing an example of process information.

Fig. 6 is a diagram showing an example of the work area information.

Fig. 7 is a diagram showing an example of space restriction information.

Fig. 8 is a diagram showing an example of production schedule information.

Fig. 9 is a diagram showing an example of the arrangement information.

Fig. 10 is a diagram showing an example of the occupied area change information.

Fig. 11 is a diagram showing an example of an input screen.

Fig. 12 is a flowchart illustrating an example of the production plan making process.

Fig. 13 is a flowchart illustrating an example of the occupied area estimation process.

Fig. 14 is a diagram for explaining an example of a method of calculating the occupied area.

Fig. 15 is a diagram showing occupancy area information corresponding to fig. 14.

Fig. 16 is a diagram for explaining an example of a method of connecting products.

Fig. 17 is a diagram showing occupancy area information corresponding to fig. 16 (B).

Fig. 18 is a diagram illustrating integration of the footprint of 3 products with the footprint of the equipment.

Fig. 19 is a diagram showing occupancy area information corresponding to fig. 18.

Fig. 20 is a diagram showing the occupied area information after updating the occupied area information of fig. 19.

Fig. 21 is a flowchart illustrating an example of the product placement process.

Fig. 22 is a diagram showing an example of the arrangement information.

Fig. 23 is a diagram showing an example of production schedule information.

Fig. 24 is a diagram illustrating an example of the arrangement of products and devices.

Fig. 25 is a diagram showing occupancy area information corresponding to fig. 24.

Fig. 26 is a diagram showing an example of the arrangement information.

Fig. 27 is a diagram showing an example of an output screen.

Fig. 28 is a diagram showing an example of the arrangement diagram screen.

Fig. 29 is a diagram illustrating an example of the arrangement of products and devices.

Fig. 30 is a diagram showing occupancy area information corresponding to fig. 29.

Fig. 31 is a block diagram showing a configuration example of a computer.

Detailed Description

An embodiment according to the present invention will be described below with reference to the drawings. In the drawings for describing the present embodiment, the same components are denoted by the same reference numerals in principle, and repetitive description thereof will be omitted. In the following embodiments, it is obvious that the constituent elements (including the element steps) are not necessarily essential, except for cases where the description is particularly clear and cases where the description is clearly regarded as essential in principle. In addition, when "consisting of a", "having a", and "including a" are mentioned, it is obvious that other elements are not excluded except the case where the meaning of only the elements is specifically clear. Similarly, in the following embodiments, when referring to the shape, positional relationship, and the like of the constituent elements and the like, the portions substantially similar to or similar to the shape and the like are included except for a case where the shape is particularly clear and a case where the shape is not clear in principle.

< example of configuration of production planning apparatus according to one embodiment of the present invention >

Fig. 1 shows a configuration example of a production plan making apparatus according to an embodiment of the present invention.

The production plan making apparatus 10 includes an input/output unit 100, a storage unit 200, and a calculation unit 300. The input/output unit 100 receives input information 210 required for planning a production plan and stores the input information in the storage unit 200. The input/output unit 100 displays an output screen 600 based on the output information 220 stored in the storage unit 200 on a display (not shown).

The storage unit 200 stores input information 210 input from the input/output unit 100. The storage unit 200 stores the output information 220 generated by the arithmetic unit 300. The storage unit 200 supplies the input information 210 and the output information 220 to the operation unit 300 as appropriate.

The input information 210 includes order information 211, product size information 212, equipment size information 213, process information 214, work area information 215, and space restriction information 216. Further, product size information 212, equipment size information 213, process information 214, work area information 215, and space restriction information 216, which are included in the input information 210 and are other than the order information 211, are stored in the storage unit 200 in advance. The contents of the product size information 212, the device size information 213, the process information 214, the work area information 215, and the space constraint information 216 may be edited as appropriate by the user.

Order information 211, product size information 212, equipment size information 213, process information 214, work area information 215, and space constraint information 216 will be described below.

Fig. 2 shows an example of order information 211. The order information 211 is information for managing the type, number of units, and delivery date of a product scheduled by a customer, and includes an order number field 2111, a production number field 2112, a product code field 2113, a number of production units field 2114, and a delivery date field 2115.

The order number field 2111 stores an order number. The production number field 2112 stores the production number. A product code as an identifier of a product is stored in the product code field 2113. The number of production units field 2114 stores the number of production units. In the delivery date field 2115, the delivery date is stored.

Fig. 2 shows a case where the order number "100" is a product for which 1 product code P10 is prepared, and the delivery date is 9/11. For example, the order number "200" is predetermined such that 2 products are produced for each of the product codes P20 and P21, and the delivery date is 9/13. Note that the production number is a code for managing the same style product among the products having the same order number, and for example, since the order number "200" is a product of a predetermined production different style, different production numbers S200 and S201 are added.

Next, fig. 3 shows an example of the product size information 212. The product size information 212 is used to manage specification information such as a product size produced in a work area of a factory or the like, and corresponds to object size information of the present invention. The product size information 212 has a product code field 2121, a product name field 2122, an X field 2123, and a Y field 2124.

A product code is stored in the product code field 2121. A product name is stored in the product name field 2122. The X field 2123 stores the length in the X direction in m (meters) units when a product indicated by a product code is arranged in the work area. The Y field 2123 stores a length in the Y direction in m units when a product indicated by a product code is arranged in the work area.

In the present specification, an X direction (corresponding to a first direction of the present invention) is defined as a lateral direction, and a Y direction (corresponding to a second direction of the present invention) is defined as a longitudinal direction. Here, the X direction may be defined as a longitudinal direction and the Y direction may be defined as a lateral direction.

Fig. 3 shows a case where, for example, the product name of a product (hereinafter, also referred to as product P10. the same applies to other products) of the product code P10 is product a, and the length in the X direction is 2m and the length in the Y direction is 2m when the product is arranged in the work area. For example, a case is shown where product P21 has a product name of product B2, and when it is placed in the work area, the length in the X direction is 2m and the length in the Y direction is 1 m.

Next, fig. 4 shows an example of the device size information 213. The device size information 213 also corresponds to the object size information of the present invention. The device size information 213 is information for managing specifications such as a device size required in a manufacturing process and a test process of a product, and includes a device code field 2131, a device name field 2132, an X field 2133, and a Y field 2134.

The device code field 2131 stores a device code. The device name field 2132 stores a device name. The X field 2133 stores the length in the X direction in m units when the device indicated by the device code is placed in the work area. The Y field 2134 stores the length in the Y direction in m units when the device indicated by the device code is placed in the work area.

Fig. 4 shows a case where, for example, the device name of the device having the device code M10 (hereinafter, also referred to as the device M10, the same applies to the other devices) is the device a, and the length in the X direction is 1M and the length in the Y direction is 2M when the device is arranged in the work area. For example, a case is shown in which the device name of the device M20 is device b, and the length in the X direction is 2M and the length in the Y direction is 4M when the device is arranged in the work area.

Next, fig. 5 shows an example of the process information 214. The process information 214 is information for managing processes and their orders related to the production of each product. The process information 214 has a product code field 2141, a process order field 2142, a process name field 2143, a preparation time field 2144, an equipment code field 2145, a work area code field 2146, and a work group field 2147.

A product code is stored in the product code field 2141. The process sequence field 2142 stores the sequence of a plurality of processes for producing a product indicated by the product code. The process name field 2143 stores the process name of each process. The preparation time field 2144 stores the number of days required for each step. The equipment code field 2145 stores equipment codes indicating equipment used in each step. The work area code field 2146 stores a work area code indicating a work area in which each process is to be performed when the work area is limited. The job group field 2147 stores a job group for each process. Here, the job group is information indicating whether each process is collectively performed by a group having a common creation number or collectively performed by a group having a common order number.

Fig. 5 shows a case where, for example, a design step, a manufacturing step, and a test step are sequentially performed in the production of the product P10, and the preparation time of each step is 3 days for the design step, 2 days for the manufacturing step, and 3 days for the test step. Note that, the case where the machine M10 is required in the test process and the test is performed in the work area indicated by the work area code E01 (hereinafter, also referred to as the work area E01, the other work areas are the same). Further, the case where the test process of the product P10 is collectively performed by the group having the common serial number is shown.

For example, the design step, the manufacturing step, and the test step are sequentially performed in the production of the product P20, and the preparation time of each step is 4 days for the design step, 3 days for the manufacturing step, and 5 days for the test step. Note that, the test process requires the machine M20 and is performed in the work area E01. Further, the case where the test process of the product P20 is collectively performed by the group having the common order number is shown. That is, the test process of product P20 is collectively performed by the test process of product P21 (see fig. 2) having a common order number.

Next, fig. 6 shows an example of the work area information 215. The work area information 215 is information for managing information on the extent of a work area existing in a factory or the like. Work area information 215 has a work area code field 2151, a work area name field 2152, an X field 2153, and a Y field 2154.

A work area code is stored in the work area code field 2151. The work area name field 2152 stores a work area name. The X field 2153 stores the length of the work area indicated by the work area code in the X direction in m (meters). The Y field 215 stores the length of the work area indicated by the work area code in the Y direction in units of m.

Fig. 6 shows a case where the work area name of the work area E01 is test plant 1, the extent of which is 15m in the X direction and 10m in the Y direction, for example. For example, the work area name of the work area E02 is laboratory 2, and the extent thereof is 10m in the X direction and 10m in the Y direction.

Next, fig. 7 shows an example of the space restriction information 216. The space restriction information 216 is information for managing work space information necessary for a work in each step. The space restriction information 216 has a product device code field 2161, a space direction field 2162, a magnitude field 2163, an overlap enable/disable information field 2164, a link unit field 2165, a link direction field 2166, and a change enable/disable information field 2167.

A product code or device code is stored in the product device code field 2161. The direction of the work space required for the product or equipment shown by the product code or equipment code stored in the product equipment code field 2161 and the magnitude thereof are stored in the space direction field 2162 and the magnitude field 2163.

Whether or not the work space indicated by the information stored in the space direction field 2162 and the magnitude field 2163 of the product or apparatus can be overlapped with the work space of other products or apparatuses is stored in the overlap enable information field 2164.

The connection unit field 2165 stores a production number or an order number as a unit in which a product or an apparatus can be connected without providing a work space with the other product or apparatus. Further, "-is stored in the case where the product or apparatus cannot be connected to another product or apparatus.

The link direction field 2166 stores a link direction (which may also be referred to as an arrangement direction) in a case where a work space is provided between the product or the device and the product or the device is arranged, or a connection is made without providing a work space.

The alterable/not-alterable information field 2167 stores alterable/not-alterable information indicating whether the product or device can be arranged in the direction perpendicular to the arrangement direction indicated by the connection direction field 2166, but not in the arrangement direction indicated by the connection direction field 2166, in order to effectively utilize the work area.

Fig. 7 shows, for example, a case where, when product P10 is placed in a work area, work spaces of 1m width need to be secured in each of the four directions (— X direction, + Y direction, and + Y direction). Further, it is shown that since the superimposition allowable information is "allowable" in the work spaces in the-Y direction and the + Y direction of the product, the work spaces can be superimposed when the product is placed in the Y direction of another product or device. On the other hand, it shows that the superimposition allowable information is "no" in the work spaces in the-X direction and the + X direction of the product, and therefore the work spaces cannot be superimposed when the product is placed in the X direction of another product or device.

In addition, since the connection unit of the product is the serial number and the connection direction is Y, the product can be arranged in the Y direction of another product having the common serial number. Further, since the changeable information is "no", there is shown a case where the connection direction cannot be changed, that is, the product cannot be arranged in the X direction of another product having the common production number, such as a case where the product cannot be arranged in the Y direction of another product having the common production number.

For example, when the device M10 is placed in a work area, it is necessary to secure a work space of 1M width in the-X direction. Further, since the superimposition enabled/disabled information is "enabled", the work space can be superimposed when the device is disposed in the + X direction of another product or device.

Since the unit of connection of the device is "-" and the direction of connection is X, the device cannot be connected to other products or devices, and the device can be arranged in the X direction of other products or devices. Since the changeable information is "changeable", it is shown that the connection direction can be changed, that is, the product can be arranged in the Y direction of another product or device, such as when the device cannot be arranged in the X direction of another product or device.

Returning to fig. 1. The output information 220 generated by the arithmetic unit 300 and stored in the storage unit 200 includes production plan information 221, arrangement information 222, and occupancy area change information 223.

The production plan information 221, the arrangement information 222, and the occupied area change information 223 will be described below.

Fig. 8 shows an example of the production plan information 221. The production plan information 221 is information for managing the start date and the end date of each process of the product, which is predetermined from the customer. The production plan information 221 includes an order number field 2211, a production number field 2212, a product name field 2213, a process name field 2214, a start date field 2215, and an end date field 2216.

The order number field 2211 stores an order number. The production number field 2212 stores a production number. A product name is stored in the product name field 2213. Any one of design, manufacture, test, and delivery is stored as a process name in the process name field 2214. The start date field 2215 and the end date field 2216 store the start date and the end date of the process.

Fig. 8 shows a case where, for example, a product a to which the order number S100 is added is ordered in a reservation of the order number "100" and the design process is 3 days of 9/1 to 9/3, the manufacturing process is 2 days of 9/4 to 9/5, the test process is 5 days of 9/6 to 9/10, and the delivery date is 1 day of 9/11.

For example, a case is shown where product B1 with the product number S200 and product B2 with the product number S201 are ordered in a reservation of the order number "200", and each design process is 4 days of 9/1 to 9/4, 3 days of 9/5 to 9/7, 5 days of 9/8 to 9/12, and 1 day of 9/13.

Next, fig. 9 shows an example of the configuration information 222. The arrangement information 222 is information for managing the arrangement location and period of products and devices in each work area. The configuration information 222 has a configuration ID field 2221, an order number field 2222, a work area code field 2223, a configuration flag field 2224, a product device code field 2225, a start point X field 2226, a start point Y field 2227, an end point X field 2228, an end point Y field 2229, a start date field 22210, and an end date field 22211.

In the configuration ID field 2221, an identifier attached to the occupied area, that is, a configuration ID is stored by configuring a product or a device, or setting a work space. The order number field 2222 stores an order number. A work area code indicating a work area in which the occupied area is set is stored in the work area code field 2223.

Any one of 1 to 4 is stored in the placement flag field 2224 as a placement flag indicating what is set in the area. The configuration flag "2" indicates a case where a product is configured in the area. The configuration flag "3" indicates a case where the device is configured in the area. The arrangement flag "4" indicates a case where a work space whose overlap with other products is not allowed is set in this area. The arrangement flag "1" indicates a case where the area is an entire occupied area including an area where products and equipment corresponding to the same order number are arranged and an area where a work space is provided.

A product code or device code is stored in the product device code field 2225 in the case where a product or device is configured in the area. Coordinates in a work area rectangular to the start point (e.g., the top left corner vertex) of the area are stored in the start point X field 2226 and the start point Y field 2227. The end point X field 2228 and the end point Y field 2229 store coordinates in a work area that is rectangular to the end point of the area (e.g., the vertex at the lower right corner). The period used by the occupied area is stored in the start date field 22210 and the end date field 22211. Specifically, the start date and the end date of the test process of the product or the equipment indicated by the product code or the equipment code stored in the product equipment code field 2225 are stored.

Fig. 9 shows a case where 9/6 to 9/10 are provided as rectangular areas indicated by the upper left-hand coordinates (0, 0) and the lower right-hand coordinates (5, 4) in the work area E10 in order to perform a job related to the product of the order number "100" in the occupied area indicated by the arrangement ID "L1001", for example.

For example, in the occupied area indicated by the arrangement ID "L2001", 9/8 to 9/12 are provided as rectangular areas indicated by the upper left-hand coordinates (5, 0) and the lower right-hand coordinates (11, 9) in the work area E10 in order to perform a work on a product of the order number "200".

Next, fig. 10 shows an example of the occupied area change information 223. The occupied area change information 223 is information for managing the change in the area of the occupied area provided in each work area on a daily basis. The occupied area change information 223 has a work area code field 2231, a date field 2232, and an occupied area field 2233.

A work area code indicating a work area is stored in the work area code field 2231. A date is stored in the date field 2232. In the occupied area field 2233, in m²The occupied area in the date of the work area is stored in units of (square meters).

Fig. 10 shows, for example, that the occupied area of 9/6 of work area E10 is 20m²This is the case. For example, 9/8 of work area E10 shows that the occupied area is 74m²This is the case.

Returning to fig. 1. The arithmetic unit 300 generates the production plan information 221, the arrangement information 222, and the occupied area change information 223 as the output information 220 by executing the production plan preparation processing with reference to the product size information 212, the equipment size information 213, the process information 214, the work area information 215, and the space restriction information 216, based on the order information 211.

The arithmetic unit 300 includes a storage unit 310 and an arithmetic processing unit 320. The storage unit 310 is used as a work area for arithmetic processing in the arithmetic processing unit 320. For example, the storage unit 310 temporarily holds the input information 210 read from the storage unit 200 or holds the occupied area information 410, the production plan information 221, the arrangement information 222, and the occupied area change information 223 generated and updated in the course of the production plan making process.

The arithmetic processing unit 320 includes a data acquisition unit 321, a process schedule assignment unit 322, an occupied area calculation unit 323, an overlap area determination unit 324, an arrangement assignment unit 325, and a display control unit 326.

The data acquiring unit 321 acquires information necessary for production planning of an order case selected by the user from the order information 211 stored in the storage unit 200, and stores the information in the storage unit 310.

The process schedule assigning unit 322 sets the start date and the end date of each process based on the product model and the delivery date of each case in the order information 211 and the preparation time of each process of the product in the process information 214, generates the production schedule information 221, and stores the same in the storage unit 200.

The occupied area calculation unit 323 calculates the occupied areas of the products of the order case and the corresponding devices based on the product size information 212, the device size information 213, and the space restriction information 216, and generates occupied area information 410.

The overlap area determination unit 324 determines a work space that can be overlapped when the occupied areas of the products and the devices are arranged in the work area based on the space restriction information 216, and updates the occupied area information 410 by integrating the occupied areas based on the determination result.

The placement allocation unit 325 allocates a work area corresponding to the order case to the work area based on the production plan information 221, the work area information 215, and the occupied area information 410, generates the placement information 222, and stores the placement information in the storage unit 200. The layout assigning unit 325 generates the occupied area change information 223 from the generated layout information 222 and stores the same in the storage unit 200.

The display control unit 326 corresponds to an output unit of the present invention. The display control unit 326 generates an input screen 500 (fig. 11) based on the order information 211 stored in the storage unit 200 and displays the input screen on the display of the input/output unit 100. Further, the display control unit 326 generates an output screen 600 (fig. 27) and a map screen 700 (fig. 28) presented to the user based on the production schedule information 221, the arrangement information 222, and the occupancy area change information 223 stored in the storage unit 200, and displays the output screen and the map screen on the display of the input/output unit 100.

< production planning processing by production planning apparatus >

Next, an example of the production plan making process by the production plan making apparatus 10 will be described.

Fig. 11 shows an example of an input screen 500 that can instruct the start of the production planning process. The input screen 500 is displayed on the display of the input/output unit 100 according to a predetermined operation from the user.

A search condition input field 510 for inputting a search condition for an order case and a search result display field 520 for displaying the searched order case are provided in the input screen 500.

The search condition input field 510 has a delivery date input field 511, a product name input field 512, and a search button 513.

The delivery date can be input as a search condition for the order case in the delivery date input field 511. The product name can be input as a search condition for the order case in the product name input field 512. The search button 513 can start searching for an order case matching the search condition input to at least one of the delivery date input field 511 and the product name input field 512. The search results are displayed in search results display field 520.

A selection column 521 is provided in each order case of the search result displayed in the search result display column 520. By inputting a mark (check) in the selection field 521, an order case to be subjected to the production planning process can be selected. In addition, an execution button 522 is provided in the search result display field 520. The user can start the production planning process for the selected order case by selecting at least one order case using the selection field 521 and pressing the execution button 522.

Fig. 12 is a flowchart illustrating an example of the production plan making process of the production plan making device 10.

The production plan making process is started when the user presses the execution button 522 through the input screen 500, for example, in a case where a new product is ordered by a customer, in a case where a made production plan needs to be modified.

Next, as shown in fig. 11, an example will be described in which order cases with order numbers "100", "200", and "300" are selected as targets of the production planning process in the search result display field 520 of the input screen 500.

First, the data acquisition unit 321 acquires, from the input information 210 of the storage unit 200, the order information 211, the product size information 212, the equipment size information 213, the process information 214, the work area information 215, and the space restriction information 216, which are information related to the order case to be subjected to the production planning process, and stores the information in the storage unit 310 (step S1).

Next, the process schedule assigning unit 322 sets the start date and the end date of each process based on the production number, the product code, the number of production units, and the delivery date of each order case in the order information 211 (fig. 2) and the preparation time of each process of the product in the process information 214 (fig. 5) (step S2).

In the process of step S2, when there are a plurality of ordered cases to be subjected to the production planning process, a process schedule is set in the order of design process, manufacturing process, and test process from a case far from the delivery date (a case with a surplus delivery date).

In the present case, the order information 211 is confirmed, and the delivery date of the order number "300" is 9/14 and farthest among the order number "100", the order number "200", and the order number "300" is confirmed. Then, in order to set the process schedule of the order number "300", process information on 3 products P30 created based on the order number "300" is acquired from the process information 214 (fig. 5).

Specifically, the process information 214 indicates that the product P30 was produced in the order of the design process for 3 days, the production process for 3 days, and the test process for 5 days. Then, a test process of 5 days, which is the final process except the delivery process, was secured from 9/13 one day before the delivery date 9/14. That is, 5 days 9/9 to 9/13 were allocated to the test procedure. After assigning each process schedule in this way, the process schedule assigning unit 322 generates the production schedule information 221 based on the schedule of the assigned test process.

Next, the occupied area calculation unit 323 estimates the product process occupied area of the order number from the product size information 212, the equipment size information 213, the process information 214, and the space constraint information 216 for the order case (case of the order number "300" in the present case) to which the process schedule is assigned as described above, and executes occupied area estimation processing for generating occupied area information 410 as the estimation result thereof (step S3).

The occupied area estimation processing of step S3 is described in detail with reference to the flowchart of fig. 13.

First, the occupied area calculation unit 323 refers to the process information 214 (fig. 4), and specifies necessary equipment and work areas for the production of the order case to which the process schedule is assigned in step S2 (step S1 l).

In the present case, the fact that the equipment M30 is required is determined in the work area E01 in the test process of 3 products P30 with the order number "300" based on the process information 214.

Next, the occupied area calculation unit 323 focuses on 1 of all the products and facilities corresponding to the order number, and determines the size thereof from the product size information 212 or the facility size information 213. Further, the occupied area calculation unit 323 determines the work space to be secured for the product or the device of interest based on the space restriction information 216 (step S12).

In the present case, focusing on 3 products P30 corresponding to the order number and 1 st product P30 in 1 device M30, the size (2 × 2) of the product P30 is determined from the product size information 212 (fig. 3). Further, it is determined from the space restriction information 216 (fig. 7) that the working spaces of the product P30 need to be set to have a width of 1m in four directions, and that only the working spaces in the-X direction (the left lateral direction in the drawing) cannot be overlapped.

Next, the occupied area calculating unit 323 calculates a minimum rectangle including the size of the product or the device and the work space as the occupied area for the product or the device focused at step S12, and generates occupied area information 410 (step S13).

The method of calculating the occupied area in step S13 will be specifically described with reference to fig. 14.

In fig. a, the size of a product P30 (product c whose product number S300 and product name are shown in the drawing) is shown. Fig. B shows the direction and width of the work space to be secured for the product P30, and whether or not the work space can be overlapped.

Fig. C shows the calculated occupied area for the product P30. That is, as its occupied area, for the product P30, the minimum rectangle (4 × 4 in the present case) of the work space including the size (2 × 2) of the product P30 and the width of 1m in its four directions is calculated. Then, the occupied area information 410 corresponding to the occupied area shown in fig. C is generated.

Fig. 15 shows the occupied area information 410 corresponding to the occupied area calculated for the product P30 shown in (C) of fig. 14.

The occupied area information 410 is information that is updated as needed until the occupied area of the product or device is finally determined, and includes a configuration ID field 4101, a configuration flag field 4102, a product device code field 4103, a start point X field 4104, a start point Y field 4105, an end point X field 4106, and an end point Y field 4107.

The arrangement ID field 4101 stores an area occupied by a product or a device in the occupied area, an area where a work space is set, or an arrangement I D added to the entire occupied area. Any one of 1 to 4 is stored in the arrangement flag field 4102 as an arrangement flag indicating what is set in the area. The configuration flag "2" indicates that the product occupies the area. The configuration flag "3" indicates that the device occupies the area. The arrangement flag "4" indicates a case where a work space whose overlap with other products is not allowed is set in this area. The configuration flag "1" indicates that the area is the entire occupied area.

The product device code field 4103 stores a product code or device code in the case where a product or device is configured in the area. When the connected products are arranged, the corresponding production numbers are stored. The start point X field 4104 and the start point Y field 4105 store relative coordinates of the start point (e.g., the top left corner vertex) of the rectangular occupied area. The end point X field 4106 and the end point Y field 4107 store the relative coordinates of the end point (e.g., the vertex in the lower right corner) of the rectangular occupied area.

In the occupied area information 410 of fig. 15, the configuration ID "L3001" is added to the entire occupied area of the product P30, "1" is stored in the configuration flag field 4102 thereof, and (0, 0) and (4, 4) are stored as relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L3002" is added to the rectangular area occupied by the product P30, "2" is stored in the arrangement flag field 4102, "a product code P30 is stored in the product device code field 4103, and (1, 1) and (3, 3) are stored as relative coordinates of the vertices of the rectangular area. Then, an arrangement ID "L3004" is added to the non-overlapping work space, and "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 3) are stored as relative coordinates of the vertices of the work space.

Returning to fig. 13. After the occupied areas of the products or the devices are calculated as described above, the overlap area determination unit 324 determines whether or not the work area in the occupied area of the product or the device calculated in step S13 can overlap with the work area in the occupied area already calculated for another product or device, and updates the occupied area information 410 by integrating the occupied areas based on the determination result (step S14).

In the present case, the occupied area of the 1 st product P30 is calculated, and the occupied area is not calculated for other products and devices, so step S14 is skipped.

Next, the occupied area calculation unit 323 determines whether or not the calculation of each occupied area for all the products and facilities corresponding to the order number is completed (step S15). If it is determined that the calculation of the occupied areas of the devices of all the products corresponding to the order number is not completed (no in step S15), the process returns to step S12, and the next process is continued while focusing on the products and devices that have not been focused on among the devices and all the products corresponding to the order number.

In the present case, 2 products P30 and 1 device M30 have not been paid attention to among 3 products P30 and 1 device M30 corresponding to the order number, and therefore, paying attention to the 2 nd product P30, the occupied area of the 2 nd product P30 is calculated in the same manner as the calculation of the occupied area of the 1 st product P30.

After the occupied area of the 2 nd product P30 is calculated, the overlap area determination unit 324 determines again the connection direction, the connection possibility, and the overlap possibility of the work area in the occupied area of the 2 nd product P30 and the work area in the occupied area of the 1 st product P30, and updates the occupied area information 410 by integrating the occupied areas of the 1 st and 2 nd products P30 based on the determination results (step S14 at the 2 nd time).

The processing of step S14 at step 2 will be specifically described with reference to fig. 16.

First, the overlap area determination unit 324 acquires the direction (+ X direction, — Y direction, + Y direction), the connection unit "creation number" and the connection direction "Y direction" of the overlappable work space related to the product P30, from the space restriction information 216 (fig. 7). Then, as shown in fig. 16 (a), the occupied areas of the 1 st product P30 and the occupied area of the 2 nd product P30 are arranged in the coupling direction "Y direction". Next, the work spaces in the-Y direction and the + Y direction of product P30 can overlap, and thus the work space of 2m width between 1 st product P30 and 2 nd product P30 is shortened to 1m width, and the work space (not shown) is shared by 1 st product P30 and 2 nd product P30.

Further, the 1 st product P30 and the 2 nd product P30 are the common manufacturing number S300, and thus, as shown in fig. 16 (B), the shared working space between the 1 st product P30 and the 2 nd product P30 is deleted, the 1 st product P30 and the 2 nd product P30 are connected, and the occupied areas of the 2 products P30 are integrated. Then, the occupied area information 410 is also updated correspondingly thereto.

Fig. 17 illustrates the occupied area information 410 illustrated in (B) of fig. 16 updated in a manner corresponding to the occupied area for 2 products P30. In fig. 17, the updated values are shown in bold italics.

In the occupied area information 410 of fig. 17, the arrangement ID "L3001" is added to the entire occupied area of the connected 2 products P30, "1" is stored in the arrangement flag field 4102, and (0, 0) and (4, 6) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L3002" is added to the rectangular area occupied by the connected 2 products P30, "2" is stored in the arrangement flag field 4102, "a production number S300 common to the connected 2 products P30 is stored in the product device code field 4101, and (1, 1) and (3, 5) are stored as the relative coordinates of the vertices of the rectangular area. Then, an arrangement ID "L3004" is added to the non-overlapping work space, and "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 5) are stored as relative coordinates of the vertices of the work space.

Returning to fig. 13. Thereafter, the process returns from step S15 to step S12 again, the 3 rd product P30 receives attention, the occupied area of the 3 rd product P30 is calculated, the occupied area of the 3 rd product P30 is integrated with the occupied areas of the 2 (1 st and 2 nd) products P30, and the occupied area information 410 is updated. The processing for the 3 rd product P30 is the same as the processing for the 2 nd product P30 described above, and therefore, the description thereof is omitted.

Thereafter, the process returns from step S15 to step S12 again, and 1 device M30 receives attention, and the occupied area of the device M30 is calculated. Specifically, the size (1 × 3) of the device M30 is determined from the device size information 213 (fig. 4). In addition, according to the space restriction information 216 (fig. 7), as the work space of the device M30, it is necessary to set a width of 1M in the-X direction, and the work spaces cannot overlap each other. In this case, as for the occupied area of the device M30, the smallest rectangle (2 × 3) containing the size (1 × 3) of the device M30 and the work space is calculated as the occupied area.

After the occupied area of the device M30 is calculated, the overlap area determination unit 324 determines whether or not the work area in the occupied area of the device M30 and the work area in the occupied area of the 3 products P30 are connected in the connection direction, and whether or not the work areas are overlapped, and based on the determination results, the occupied area of the device M30 and the occupied area of the 2 products P30 are integrated, and the occupied area information 410 is updated (step S14 at the 4 th time).

The processing of step S14 at the 4 th time will be specifically described with reference to fig. 18.

First, the overlapping area determination unit 324 acquires the direction (— X direction), the connection unit "—" and the connection direction "X direction" of the stackable operation space with respect to the device M30, from the space restriction information 216 (fig. 7). Then, the occupied areas of the 3 products P30 and the occupied area of the device M30 that are connected are arranged in the connection direction "X direction" (not shown). Next, the work space in the + X direction of product P30 and the work space in the-X direction of apparatus M30 can overlap, thereby shortening the work space of 2M width between product P30 and apparatus M30 to 1M width as shown in fig. 18. Further, the unit of connection of device M30 is "—" whereby device M30 does not make connection with product P30. In the example of fig. 18, the Y coordinate of the start point of the 3 connected products P30 arranged is aligned with the Y coordinate of the start point of the arranging device M30, but the centers of the two may be aligned or the Y coordinates of the end points may be aligned. In addition, the Y-coordinate may be aligned.

Then, the overlapping area determination unit 324 updates the occupied area information 410 in accordance with the state shown in fig. 18.

Fig. 19 shows the occupancy area information 410 updated so that the occupancy areas for the linked 3 products P30 shown in fig. 18 correspond to the occupancy areas for the device M30.

In the occupied area information 410 of fig. 19, the arrangement ID "L3001" is added to the occupied area of 3 connected products P30, "1" is stored in the arrangement flag field 4102, and (0, 0) and (4, 8) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L30011" is added to a rectangular area indicating the occupied area of the device M30, and "1" is stored in the arrangement flag field 4102, and (3, 1) and (5, 4) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L3002" is added to the rectangular area occupied by the connected 3 products P30, "2" is stored in the arrangement flag field 4102, "a production number S300 common to the connected 3 products P30 is stored in the product device code field 4101, and (1, 1) and (3, 7) are stored as the relative coordinates of the vertices of the rectangular area. Further, the rectangular area occupied by the device M30 is assigned the placement ID "L3003", the placement flag field 4102 stores "3", the product device code field 4101 stores the device code M30, and the relative coordinates of the vertices of the rectangular area store (4, 1) and (5, 4). Further, an arrangement ID "L3004" is added to the non-overlapping work space, "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 7) are stored as relative coordinates of the vertices of the work space.

As described above, when the occupied areas of all the products and equipment corresponding to the order number are calculated, it is determined in step S15 that the calculation of the occupied areas of all the products and equipment corresponding to the order number is completed (step S15: YES), and the process proceeds to step S16 of FIG. 13.

In step S16, the overlap area determination unit 324 sets the minimum rectangle including the area with the placement flag "1" as the occupied area corresponding to the order number based on the occupied area information 410 of the current stage, specifies an unavailable area in the area, and updates the occupied area information 410 again. Here, the unusable area is an area where other products and devices cannot be arranged when the integrated occupied area is actually arranged in the work area.

For example, in the case of fig. 18, a minimum rectangle (an area of 5 × 8 with the relative coordinates (0, 0) as the vertices) including the occupied area of 3 products P30 (an area of 4 × 8 with the relative coordinates (0, 0) as the vertices) and the occupied area of the equipment M30 (an area of 1 × 3 with the relative coordinates (4, 1) as the vertices) is set as the occupied area corresponding to the order number. Further, the area in the-Y direction (the area of 1 × 1 with the relative coordinate (4, 0) as the vertex) and the area in the + Y direction (the area of 1 × 4 with the relative coordinate (4, 4) as the vertex) of the device M30 are determined as unusable areas and stored in the storage unit 410.

Fig. 20 shows the occupied area information 410 corresponding to the occupied area corresponding to the order number "300" updated in step S16.

In the occupied area information 410 of fig. 20, the arrangement ID "L3001" is added to the entire occupied area corresponding to the order number "300", the arrangement flag field 4102 stores "1", and (0, 0) and (5, 8) are stored as relative coordinates of the vertices of the rectangular area. Further, the arrangement ID "L3002" is applied to the rectangular area occupied by the connected 3 products P30, "2" is stored in the arrangement flag field 4102, "the production number S300 common to the connected 3 products P30 is stored in the product device code field 4101, and (1, 1) and (3, 7) are stored as the relative coordinates of the vertices of the rectangular area. Further, the rectangular area occupied by the device M30 is assigned the placement ID "L3003", the placement flag field 4102 stores "3", the product device code field 4101 stores the device code M30, and the relative coordinates of the vertices of the rectangular area store (4, 1) and (5, 4). Further, an arrangement ID "L3004" is added to the non-overlapping work space, "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 7) are stored as relative coordinates of the vertices of the work space. Further, the record of the configuration ID "L30011" existing in the occupied area information 410 of fig. 19 is eliminated.

As described above, after the occupied area estimation processing is performed, the process proceeds to step S4 of the production plan formulation processing (fig. 12).

Returning to fig. 12. Next, the placement assignment unit 325 performs a placement process of placing the occupied area corresponding to the order number estimated in step S3 in the work area (step S4).

The configuration processing of step S4 is explained in detail with reference to fig. 21. Fig. 21 is a flowchart for explaining the configuration processing of step S4 in detail.

First, the placement and assignment unit 325 refers to the process information 214 to specify the work area of the occupied area for placing the order number. In addition, in order to acquire the assignment state of the work area, the work area information 215 and the created arrangement information 222 are acquired (step S21).

Specifically, the test process for product P30 with order number "300" is identified from process information 214 (fig. 5) as work area E01. Further, it is determined from the work area information 215 (fig. 6) that the size of the work area E01 is 15 × 10. The arrangement information 222 is not yet created in the present case, and thus cannot be acquired. In the case where the arrangement information 222 cannot be acquired, it is determined that the work area E01 is free.

Next, the placement allocation unit 325 refers to the occupied area information 410, places the occupied area of the order number in the predetermined area of the identified work area (step S22), and determines whether or not the placement is possible (step S23). If it is determined that the occupied area of the order number can be allocated to the identified work area (yes in step S23), the allocation information 222 is generated (step S24). After that, the process proceeds to step S5 of the production plan making process.

In the present case, it is found from the occupied area information 410 that the occupied area size of the order number "300" is 5 × 8, and the occupied area size is smaller than the size of the work area E01, so that the occupied area of the order number "300" can be allocated. For example, the arrangement information 222 shown in fig. 22 is generated by assigning the occupied area to an area having the coordinates (0, 0) and (5, 8) of the work area E01 as vertices.

The occupied area information 410 generated in the occupied area estimation processing of the order number is referred to in the generation of the configuration information 222.

For example, the layout information 222 in fig. 22 refers to the occupied area information 410 shown in fig. 20, and adds an order number field 2222, a work area code field 2223, a start date field 22210, and an end date field 22211 to the occupied area information 410. Then, the order number "300" is stored in the order number field 2222, the work area code E10 is stored in the work

area code field

2223, 9/9 is stored in the

start date field

22210, and 9/13 is stored in the end date field 22211.

Further, in step S23, if it is determined that it is not possible to place the occupied area of the order number in the specific work area (step S23: NO), the placement allocation unit 325 determines whether or not there is a placement destination candidate (an area to which the occupied area is not allocated in the work area) (step S25). Here, when it is determined that there is a placement destination candidate (step S25: yes), the processing returns to step S22, and the subsequent processing is repeated.

Conversely, when it is determined that there are no placement destination candidates (step S25: NO), the placement processing ends, and the processing proceeds to step S5 of the production plan making processing.

Returning to fig. 12. Next, the placement allocation unit 325 determines whether or not the occupied area corresponding to the order number can be placed in the work area by the above-described placement processing (step S5). Here, if it is determined that the occupied area corresponding to the order number cannot be placed in the work area (no in step S5), the process returns to step S2, the process schedule is again assigned in the advance direction, and the subsequent process is repeated. If it is determined that the occupied area corresponding to the order number can be placed in the specific work area by changing the process schedule (yes in step S5), the process proceeds to step S6.

In the above description, the assignment of the process schedule is changed when it is determined that there is no placement destination candidate, but each process may be performed in a work area other than the identified work area depending on the product type. In this case, the work area may be changed without changing the assignment of the process schedule, and the placement destination candidates may be detected in the changed work area to determine whether or not the occupied area of the order number can be placed. This makes it possible to create a production plan that effectively uses all the work areas, and thus the preparation time can be further shortened.

Next, in step S6, the process schedule assignment unit 322 determines whether or not the schedule assignment of all the processes for all the order cases targeted for the production planning process is completed. If it is determined that the processing is not completed (step S6: no), the processing returns to step S2, and the subsequent processing is repeated. Conversely, if it is determined to be complete (step S6: YES), the process proceeds to step S7.

In the present case, only the schedule assignment of the trial process for the order case "300" is completed among all the order cases targeted for the production planning process, and therefore the process returns to step S2, and the process schedule assignment unit 322 assigns the schedule of the production process for the order case "300". Specifically, since it is known from the process information 214 that the product P30 of the order case "300" requires 3 days of manufacturing processes, 3 days 9/6 to 9/8 are allocated to the manufacturing processes.

Further, from the process information 214, since the manufacturing process of the product P30 does not use equipment or work areas, the processes of steps S3 to S5 that target the manufacturing process of the product P30 are omitted.

Thereafter, the process returns to step S2 again, and the process schedule assigning unit 322 assigns the schedule of the design process of the order case "300". Specifically, since it is known from the process information 214 that the product P30 of the order case "300" requires a design process for 3 days, 3 days 9/3 to 9/5 are allocated to the design process. Further, from the process information 214, it is understood that the equipment and the work area are not used in the design process of the product P30, as in the manufacturing process, and therefore the processes of steps S3 to S5, which are targeted for the design process of the product P30, are omitted.

Then, the process schedule assigning unit 322 generates production schedule information 221 in which schedules assigned to the respective processes are stored.

Fig. 23 shows the production plan information 221 corresponding to the order case "300".

In the production plan information 221 of fig. 23, the order number "300" is stored in the order number field 2211, the production number "S300" is stored in the production number field 2212, and the product name "product C" is stored in the product name field 2213. The process name field 2214, the start date field 2215, and the end date field 2216 store the process name and the assigned schedule (start date and end date) of each process.

Thereafter, the process returns to step S2 again, and the subsequent process is performed for the case with the order number "200" on the delivery date.

Specifically, in order to set the process of the order number "200", process information on the 2 products P20 and the 2 products P21 created in accordance with the order number "200" is acquired from the process information 214 (fig. 5).

In the present case, it is acquired from the process information 214 that the products P20 and P21 are subjected to the design process for 4 days, the manufacturing process for 3 days, and the test process for 5 days in this order. Then, a test procedure of 5 days as a final procedure was secured from 9/12 of the day before delivery date 9/13. That is, 5 days 9/8-9/12 were allocated to the test process. After assigning the schedules of the respective steps in this way, the step schedule assigning unit 322 generates the production schedule information 221 based on the schedules of the assigned test steps.

Next, the occupied area calculation unit 323 estimates the product process occupied area of the order number from the product size information 212, the equipment size information 213, the process information 214, and the space constraint information 216 for the order case (case of the order number "200" in the present case) to which the process schedule is assigned as described above, performs occupied area estimation processing, generates occupied area information 410 as the estimation result in the occupied area estimation processing, and stores the same in the storage unit 310 (step S3).

Specifically, first, the occupied area calculation unit 323 refers to the process information 214 (fig. 4) to create the products P20 and P21 of the order case "200" to which the process schedule is assigned in step S2, and specifies necessary equipment and work areas (step S1 l).

In the present case, for product P20 with order number "200", it is determined from procedure information 214 that equipment M20 is required in work area E01 in its test procedure. Further, product P21 having order number "200" is identified from process information 214 as requiring work area E01 in the test process.

In the present case, focusing on product P20 in 2 products P20 and 1 equipment M20 and 2 products P21 corresponding to the order number "200", the size (2 × 2) of product P20 is determined from product size information 212 (fig. 3). Further, according to the space restriction information 216 (fig. 7), it is necessary to provide a work space of the product P20 with a width of 1m in four directions, and it is determined that only the work spaces in the-X direction (the left lateral direction in the drawing) are not overlapped.

Next, the occupied area calculation unit 323 calculates the minimum rectangle (4 × 4) including the product P20 and the work space thereof as the occupied area for the 1 st product P20.

Similarly, the occupied area calculation unit 323 calculates the occupied areas of the remaining 1 product P20, 1 equipment M20, and 2 products P21, and calculates the occupied area corresponding to the order number "200" by integrating the occupied areas sequentially calculated by the overlap area determination unit 324.

Fig. 24 shows the occupied area calculated for the order number "200". As shown in the figure, in the occupied area, 2 products P20 (product B1) are linked in the Y direction. Similarly, 2 products P21 (product B2) are connected in the Y direction. Further, product P20 (product B1) is not connected because of the difference in the product number from 2 products P21 (product B2), but the width thereof is shortened to 1m because the working spaces between the two can overlap. The apparatus 20 is arranged in the X direction of the product P20. The 2 × 1 area adjoining in the-Y direction of the apparatus 20 and the 2 × 4 area adjoining in the + Y direction are unusable areas.

Fig. 25 shows occupied area information 410 corresponding to fig. 24.

In the occupied area information 410 of fig. 25, the arrangement ID "L2001" is added to the entire occupied area corresponding to the order number "200", the arrangement flag field 4102 stores "1", and (0, 0) and (6, 9) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L2002" is added to the rectangular area occupied by the 2 products P20 connected in the Y direction, "2" is stored in the arrangement flag field 4102, "the production number S200 common to the 2 products P20 connected is stored in the product device code field 4101, and (1, 1) and (3, 5) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L2003" is added to the rectangular area occupied by the 2 products P21 connected in the Y direction, "2" is stored in the arrangement flag field 4102, "the production number S201 common to the 2 connected products P21 is stored in the product device code field 4101, and (1, 6) and (3, 8) are stored as the relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L2004" is added to the rectangular area occupied by the device M20, and "3" is stored in the arrangement flag field 4102, and the device code M20 is stored in the product device code field 4101, and (4, 1) and (6, 5) are stored as the relative coordinates of the vertices of the rectangular area. Further, the arrangement IDs "L2005" and "L2006" are added to the two non-overlapping work spaces, respectively, "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 5) or (0, 6) and (1, 8) are stored as the relative coordinates of the vertices of the work spaces.

After the occupied area corresponding to the order number "200" is calculated in this way, the placement allocation unit 325 performs a placement process in which the occupied area corresponding to the order number "200" is placed in the work area (step S4).

First, the placement assignment unit 325 specifies that the test process for product P20 with order number "200" is work area E01 from process information 214 (fig. 5). The arrangement assignment unit 325 specifies that the size of the work area E01 is 15 × 10 based on the work area information 215 (fig. 6).

The arrangement assigning unit 325 specifies the assignment state of the test procedure schedules (9/8 to 9/12) of the product P20 with the order number "200" assigned to the work area E01 based on the existing arrangement information 222 (fig. 22). In the present case, it is found from the arrangement information 222 that the schedule (9/8 to 9/12) of the test process of the product P20 assigned to the order number "200" overlaps the schedule (9/9 to 9/13) of the test process of the product P30 assigned to the order number "300", and the vertex coordinates of the occupied areas are (0, 0) and (5, 8), and therefore the occupied area corresponding to the order number "200" is assigned to the area not assigned to the order number "300" in the work area E01. For example, the occupied area corresponding to the order number "200" is allocated in the areas having the vertex coordinates (5, 0) and (11, 9) of the work area E01.

Then, the layout assigning unit 325 updates the layout information 222 shown in fig. 22 to the layout information 222 shown in fig. 26 by reflecting the occupied area of the order number "200" assigned to the work area E01. Specifically, information on the arrangement IDs "L2001" to "L2006" of fig. 26 is stored.

After that, the process proceeds to step S5 of the production plan making process.

Returning to fig. 12. Next, the placement allocation unit 325 determines whether or not the occupied area corresponding to the order number can be placed in the work area by the above-described placement processing (step S5). Here, when it is determined that the occupied area corresponding to the order number cannot be placed in the work area, the process returns to step S2, the process schedule is again assigned, and the subsequent process is repeated. Conversely, if it is determined that the occupied area corresponding to the order number can be placed in the work area, the process proceeds to step S6.

Next, the process schedule assignment unit 322 determines whether or not the schedule assignment of all the processes for all the order cases targeted for the production planning process is completed (step S6).

In the present case, only the schedule distribution of all the steps of the order case "300" and the test step of the order case "200" is completed in all the order cases targeted for the production planning process, and therefore the process returns to step S2, and the process schedule distribution unit 322 distributes the schedule of the manufacturing step of the order case "200". Specifically, since it is known from the process information 214 that the products P20 and P21 of the order case "200" require 3 days of manufacturing process, 3 days of 9/5 to 9/7 are allocated to the manufacturing process.

Further, since the process information 214 indicates that the manufacturing processes of the products P20 and P21 do not use equipment or work areas, the processes of steps S3 to S5 that target the manufacturing processes of the products P20 and P21 are omitted.

Thereafter, the process returns from step S6 to step S2, and the process schedule assigning unit 322 assigns the schedule of the design process of the order case "200". Specifically, since it is known from the process information 214 that the products P20 and P21 of the order case "200" require 4 days of the design process, 4 days of 9/1 to 9/4 are allocated to the design process. Further, from the process information 214, it is understood that the equipment and the work area are not used in the design process of the products P20 and P21, and therefore the processes of steps S3 to S5 that target the design process of the products P20 and P21 are omitted.

Then, the process schedule assigning unit 322 updates the production schedule information 221 by reflecting the schedule assigned to each process of the order case "200".

Thereafter, the process returns from step S6 to step S2, and the subsequent process is performed for the case with the remaining order number "100". Note that the processing for the case with the order number "100" is the same as the processing for the case with the order number "300" or "200" described above, and therefore, the description thereof is omitted.

Thereafter, it is determined that the schedule assignment of all the processes for all the order cases targeted for the production planning process is completed (step S6: YES), and the process proceeds to step S7.

Next, the arithmetic processing unit 320 supplies the production schedule information 221 (fig. 8) and the arrangement information 222 (fig. 9) corresponding to the order numbers "100" to "300" generated by the above-described processing to the storage unit 200 and stores them. The layout assigning unit 325 generates the occupied area change information 223 (fig. 19) based on the layout information 222 and stores the same in the storage unit 200.

Then, the display control unit 326 generates an output screen 600 based on the production schedule information 221 and the arrangement information 222 stored in the storage unit 200, and displays the output screen on the display of the input/output unit 100. When the user performs a predetermined operation on the output screen 600 (fig. 27), the display control unit 326 updates the display content of the output screen 600 or the display layout screen 700 (fig. 28) (step S7). In this way, the production plan preparation processing is ended.

According to the production plan preparation processing described above, a highly accurate production plan that can effectively use actual steps in time and space can be prepared from an order case including a plurality of products or required facilities having different models. In addition, it is possible to reduce the preparation time required for production by suppressing a production schedule that is advanced to the extent that the need for shortage of the work area is higher.

Next, fig. 27 shows an example of the output screen 600. The output screen 600 is provided with a work instruction sheet display field 610, an occupied area change display field 620, and a search condition input field 630.

The work instruction sheet display field 610 displays a work instruction sheet assigned to each process of a predetermined number selected in the search result display field 520 of the input screen 500. The work instruction list is generated by the display control unit 326 based on the production schedule information 221 in the storage unit 200.

In the case of this figure, the schedules of the design process, the manufacturing process, and the test process of the order numbers "100" to "300" are displayed for each production number (for each product).

A time-series change in the area occupied by the occupied area in the work area is displayed in the occupied area change display field 620, and a work area selection field 6621 for selecting a work area, an occupied area display button 622 for determining the selection of a work area, and a graph 6231 showing the time-series change in the area occupied by the occupied area in the selected work area are formed in the display field 623.

The graph 6231 displayed in the display column 623 is generated by the display control unit 326 based on the occupancy region change information 223 of the storage unit 200.

The user can display a graph 6231 showing a change in the area occupied by the occupied area in the selected work area in the display field 623 by selecting the work area in the work area selection field 621 and pressing the occupied area display button 622. The table 6231 shows the upper limit value (150 m in the present case) of the selected work area, that is, the configurable occupied area²) 6232.

A condition for displaying the occupied area arrangement status in the job area is input in the search condition input field 630, and a job area selection field 631 for selecting a job area, a date input field 632 for inputting a date, and an arrangement information display button 633 for determining the selected job area and the input date are provided. The user can cause the display of the input/output unit 100 to display the arrangement diagram screen 700 by selecting a work area in the work area selection field 631, inputting a date in the date input field 632, and pressing the arrangement information display button 633.

Fig. 28 shows an example of the configuration diagram screen 700. The arrangement diagram screen 700 is provided with a work area display field 701 for displaying a work area code and a work area name, a date display field 702 for displaying a date, and an arrangement diagram display field 703 for displaying an arrangement diagram.

The arrangement diagram is generated by the display control unit 326 based on the arrangement information 222 of the storage unit 200.

In the arrangement diagram displayed in the arrangement diagram display field 523, the occupied areas corresponding to the respective order numbers are distinguished by thick lines. In each occupied area, the product configuration is represented by a production number and a product name. In addition, the device configuration is represented by a device code and a device name. The stackable working space, the non-stackable working space, and the unusable area are displayed so as to be distinguishable from each other by color separation or the like, for example.

< modification of production planning Process >

In the production plan preparation process described above, as shown in fig. 18, the occupied area of the equipment M30 in the order number "300" is arranged in the X direction of the occupied area of the 3 products P30 in accordance with the connection direction stored in the connection direction field 2166 of the space restriction information 216, but may not be arranged in the X direction of the 3 products P30 depending on the situation. In this case, if the alteration possibility information stored in the alteration possibility information field 2167 of the space restriction information 216 is "possible", the overlapping area determination unit 324 may arrange the occupied area of the device M30 in the Y direction of the occupied area of the 3 products P30. Thus, even when the restriction in the X direction or the Y direction of the work area is severe, the work area can be effectively used.

Fig. 29 shows the occupied area corresponding to the order number "300" in the case where the occupied area of the device M30 is arranged in the Y direction of the occupied area of the 3 products P30.

Fig. 30 shows occupied area information 410 corresponding to the occupied area corresponding to the order number "300" shown in fig. 29.

In the occupied area information 410 of fig. 30, an arrangement ID "L3001" is added to a rectangular area indicating the occupied area corresponding to the order number "300", a "1" is stored in the arrangement flag field 4102 thereof, and (0, 0) and (4, 11) are stored as relative coordinates of the vertices of the rectangular area. Further, an arrangement ID "L3002" is added to a rectangular region in which 3 connected products P30 are arranged, "2" is stored in the arrangement flag field 4102, "production number S300 common to the connected 3 products P30 is stored in the product device code field 4101, and (1, 1) and (3, 7) are stored as relative coordinates of the vertices of the rectangular region. In addition, the rectangular area of the placement device M30 is assigned the placement ID "L3003", the placement flag field 4102 stores "3", the product device code field 4101 stores the device code M30, and the relative coordinates of the vertices of the rectangular area store (1, 8) and (2, 11). Further, an arrangement ID "L3004" is added to the non-overlapping work space, "4" is stored in the arrangement flag field 4102, and (0, 1) and (1, 7) are stored as relative coordinates of the vertices of the work space.

As described above, according to the production plan preparation apparatus 10 of the present embodiment, since the occupied area calculation unit 323 is provided, the occupied area for each product or equipment can be accurately calculated. Further, since the overlapping area determination unit 324 is provided, the occupied areas calculated for the respective products and facilities can be efficiently integrated. Further, since the arrangement allocation unit 325 is provided, the occupied area corresponding to the order number can be allocated to the work area with high space efficiency. Further, since the process schedule assigning unit 322 is further provided, the occupied area corresponding to the order number can be assigned to the work area with high time efficiency.

The production plan making apparatus 10 according to the embodiment of the present invention can be realized by software as well as by hardware. When the production planning apparatus 10 is implemented by software, a program constituting the software is installed in a computer. Here, the computer includes a computer incorporated with dedicated hardware, a general-purpose personal computer, for example, which can execute various functions by installing various programs, and the like.

Fig. 31 is a block diagram showing an example of the hardware configuration of a computer that programs the production plan making device 10.

In the computer 1000, a CPU (Central Processing Unit) 1001, a ROM (Read Only Memory) 1002, and a RAM (Random Access Memory) 1003 are connected via a bus 1004.

An input/output interface 1005 is also connected to the bus 1004. The input/output interface 1005 is connected to an input unit 1006, an output unit 1007, a storage unit 1008, a communication unit 1009, and a driver 1010.

The input unit 1006 is constituted by a keyboard, a mouse, a microphone, and the like. The output unit 1007 is configured by a display, a speaker, and the like. The storage unit 1008 is configured by a hard disk, a nonvolatile memory, and the like. The communication unit 1009 is configured by a network interface or the like. The drive 1010 drives a removable medium 1011 such as a magnetic disk, an optical magnetic disk, or a semiconductor memory.

In the computer 1000 having the above configuration, the CPU1001 realizes the arithmetic processing unit 320 of the production plan formulation apparatus 10 by loading and executing a program stored in the storage unit 1008 to the RAM1003 via the input/output interface 1005 and the bus 1004, for example.

The input/output unit 100 of the production plan setting apparatus 10 is realized by an input unit 1006 and an output unit 1007. The storage unit 200 and the storage unit 310 of the production plan preparation apparatus 10 are realized by the storage unit 1008, the RAM1003, or the removable medium 2011.

The program executed by the computer 1000(CPU1001) can be provided by being recorded on a removable medium 1011 such as a portable reproduction device, for example. In addition, the program can be provided via a wired or wireless transmission medium such as a local area network, the internet, digital satellite broadcasting, or the like.

In the computer 1000, by mounting the removable medium 1011 to the drive 1010, the program can be installed in the storage unit 1008 via the input/output interface 1005. The program can be received by the communication unit 1009 via a wired or wireless transmission medium and installed in the storage unit 1008. In addition, the program can be installed in the ROM1002 and the storage unit 1008 in advance.

Note that the program executed by the computer 1000 may be a program that performs processing in time series along the order described in the present specification, or may be a program that performs processing at a necessary timing such as when the program is connected in parallel or called.

The effects described in the present specification are always examples, are not limited, and other effects may be possible.

The present invention is not limited to the above embodiment, and includes various modifications. For example, the above embodiments are described in detail to facilitate understanding of the present invention, and the present invention is not limited to the case where all the components described are necessarily provided. Note that a part of the structure of one embodiment can be replaced with the structure of another embodiment, and the structure of another embodiment can be added to the structure of one embodiment. Further, a part of the configuration of each embodiment can be added, deleted, or replaced with another configuration.

The present invention can be provided not only by the work planning apparatus and the work planning method but also by various forms such as a computer-readable program.

Description of the symbols

10: a production plan making device; 100: an input/output unit; 200: a storage unit; 210: inputting information; 211: order information; 212: product size information; 213: device size information; 214: process information; 215: work area information; 216: space constraint information; 220: outputting the information; 221: production plan information; 222: configuration information; 223: occupied area change information; 300: a calculation unit; 310: a memory section; 320: an arithmetic processing unit; 321: a data acquisition unit; 322: a process schedule distribution unit; 323: an occupied area calculation section; 324: an overlap region determination unit; 325: a distribution section is configured; 326: a display control unit; 410: occupied area information; 500: inputting a picture; 510: a search condition input field; 511: a delivery date input field; 512: a product name input field; 513: a search button; 520: a search result display field; 521: selecting a column; 522: an execution button; 600: outputting a picture; 610: a work order table display column; 620: an occupied area change display bar; 621: an operation area selection field; 622: an occupied area display button; 623: a display bar; 630: a search condition input field; 631: an operation area selection field; 632: a date input field; 633: a configuration information display button; 700: a configuration map screen; 701: a work area display bar; 702: a date display field; 703: a configuration diagram display bar; 701. 1000: a computer; 1001: a CPU; 1002: a ROM; 1003: a RAM; 1004: a bus; 1005: an input/output interface; 1006: an input section; 1007: an output section; 1008: a storage unit; 1009: a communication unit; 1010: a driver; 1011: a removable medium.

Claims

1. A production plan making device is characterized by comprising:

an input unit that inputs order information relating to an order for a product;

a storage unit that stores object size information including information on a size of an object arranged in a work area used in a process of ordering the product, and space restriction information including information on a work space of the object;

an occupied area calculation unit that calculates an occupied area including a layout size and the work space for each object based on the object size information and the space restriction information, and generates occupied area information based on a calculation result; and

an overlap area determination unit that determines whether or not the work spaces in the occupied areas of the objects corresponding to the order information overlap each other based on overlap-enabled information of the space restriction information, integrates the occupied areas of the objects based on the determination result, and updates the occupied area information based on the integration result,

the overlapping area determination unit connects and integrates the occupied areas of the objects corresponding to the order information in accordance with a connection direction of the space restriction information,

the overlap area determination unit connects and integrates the occupied areas of the objects corresponding to the order information in a direction different from the connection direction when the changeable information of the space restriction information is changeable.

2. The production planning apparatus according to claim 1,

the overlap area determination unit shortens the interval between the objects, shares the working space between the objects, and integrates the occupied areas of the objects when the superimposition enabled/disabled information indicates superimposition enabled.

3. The production planning apparatus according to claim 2,

the overlap area determination unit determines whether or not the objects are connectable to each other based on a connection unit of the space restriction information, and when it is determined that the objects are connectable to each other, the overlap area determination unit connects the objects to each other by eliminating the working space between the objects and integrates the occupied areas of the objects to each other.

4. The production planning apparatus according to claim 1,

the production plan making device includes:

a configuration allocating unit that allocates the occupied area corresponding to the order information to the work area of a predetermined schedule based on the occupied area information corresponding to the order information, thereby generating configuration information; and

and an output unit that outputs a layout based on the generated layout information.

5. The production planning apparatus according to claim 4,

the overlap area determination unit determines an unusable area that cannot be used as the arrangement of the object and the work space,

the output unit displays the object, the work space, and the unusable area in the layout drawing in a distinguished manner.

6. The production planning apparatus according to claim 4,

the output unit displays a non-overlapping work space that cannot be shared by the objects and an overlapping work space that can be shared by the objects, separately from each other, in the layout.

7. The production planning apparatus according to claim 4,

the object disposed in the work area includes the product and equipment necessary for the process of the product,

the output unit displays the product and the device in the layout.

8. The production planning apparatus according to claim 4,

the production plan making device includes: a process schedule distributing part for distributing the process schedule of the product according to the order information to generate production plan information,

the arrangement allocation unit allocates the occupied area of each object to the work area of the allocated process schedule based on the occupied area information and the production plan information, thereby generating arrangement information.

9. The production planning apparatus according to claim 8,

the placement allocation unit generates the placement information by allocating the occupied area corresponding to the order information to a first work area of the allocated process schedule, and allocating the occupied area to a second work area different from the first work area.

10. The production planning apparatus according to claim 8,

the output unit outputs a work instruction sheet based on the generated production plan information.

11. The production planning apparatus according to claim 8,

the layout assigning unit generates, based on the occupancy area information and the production plan information, occupancy area change information indicating a time-series area change of the occupancy area assigned to the work area,

the output unit outputs a graph based on the generated occupancy area change information.

12. The production planning apparatus according to claim 11,

the output unit outputs the graph in which the upper limit value of the area of the working area is described.

13. A production plan making method for a production plan making device, the production plan making device comprising:

an input unit that inputs order information relating to an order for a product;

an occupied area calculation section; and

an overlap area judgment unit for judging the overlap area,

the production plan making method is characterized by comprising the following steps:

an occupied area calculation step of calculating an occupied area including a layout size and the work space for each object based on the object size information and the space restriction information, and generating occupied area information based on a calculation result; and

an overlapping area determination step of determining whether or not the work spaces in the occupied areas of the objects corresponding to the order information overlap each other based on information indicating whether or not the space restriction information can overlap each other, integrating the occupied areas of the objects based on the determination result, and updating the occupied area information based on the integration result,

the overlapping area determining step connects and integrates the occupied areas of the objects corresponding to the order information in accordance with a connection direction of the space restriction information,

the overlapping area determination step may be configured to, when the changeable information of the space restriction information is changeable, connect and integrate the occupied areas of the objects corresponding to the order information in a direction different from the connection direction.