JP2019219837A - Work-in-process information display device and method - Google Patents

Abstract

To display work-in-process information of a semi-product in a desired time zone in an easy-to-understand manner.SOLUTION: A work-in-process information display device comprises: a semi-product information storage unit which stores processing start time and processing end time at each facility for each plurality of semi-products; a work-in-process extraction object storage unit which stores a target facility serving as a display object and a target time zone, which is a time zone of the display object; an extraction target determination unit which extracts from a semi-product information storage unit, a semi-product in which a facility of a present process matches the target facility, processing end time or processing start time at a process immediately before the present process is earlier than end time of the target time zone, and the processing end time or the processing start time at the present process is later than start time of the target time zone, as a work-in-semi-process product, which is a semi-product of the display object; and a display control unit which displays a work-in-process chart in which processing end time or processing start time of a previous process of the work-in-process product serves as a start point and the processing end time or the processing start time of the present process of the work-in-process product serves as an end point, and the start time and the end time of the target time zone as work-in-process information on a display.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technology for displaying in-process information of semi-finished products in process on equipment in each process from simulation results or production results on a time axis in a process of a production factory that produces products.

  There is known a technology for visualizing the residence time of a semi-finished product (hereinafter, also referred to as a “finished semi-finished product”) in the equipment of each process as in-process information in each process of a production factory (for example, Patent Document 1). reference). The technique described in Patent Document 1 will be described with reference to FIG. As shown in FIG. 13, the task 14 of the current process of the semi-finished product Jb4 is executed in the equipment M. The task 21 of the previous process, which is the process immediately before the current process, is executed by the equipment L. In FIG. 13, the time from the processing end time tLe of the task 21 to the processing start time tMs of the task 14 is the inter-process time Tp4. As shown in FIG. 13, the inter-process time Tp4 includes a shortest inter-process time Tb4 and a residence time Tw4.

  The shortest inter-process time Tb4 is an indispensable time from the processing end time tLe of the task 21 to the processing start time tMs of the task 14. The shortest interprocess time Tb4 is, for example, when the heating process task 21 is performed on the semi-finished product Jb4 in the facility L, the heated semi-finished product Jb4 is cooled to a temperature at which the next task 14 is possible. Includes required cooling time. The shortest inter-process time Tb4 includes, for example, a transport time required for the semi-finished product Jb4 to be transported from the facility L to the facility M. The stay time Tw4 is a time during which the semi-finished product Jb4 waits until the processing of the task 14 is started.

  A point Pt4 connected by the relation line Lr4 to the front end of the Gantt chart of the task 14 representing the processing start time tMs of the task 14 for the semi-finished product Jb4 is the shortest inter-process time Tb4 after the shortest inter-process time Tb4 from the processing end time tLe of the task 21. Indicates the time completion time tBe. That is, the relationship line Lr4 starts from the shortest inter-process time completion time tBe after the shortest inter-process time Tb4 has elapsed from the process end time tLe of the previous process (task 21), and starts the Gantt chart process of the current process (task 14). This is a straight line ending at time tMs. By the relation line Lr4, the dwell time Tw4 excluding the shortest inter-process time Tb4 among the inter-process times Tp4 from the process end time tLe of the previous process (task 21) to the process start time tMs of the current process (task 14) is expressed by: It will be displayed on the display 11.

  As shown in FIG. 13, by displaying the relationship line Lr4 on the display 11, the residence time Tw4 of the semi-finished product Jb4 can be intuitively understood on the Gantt chart even when there are a plurality of facilities in the previous process. I have. That is, the residence time Tw4 becomes longer as the inclination of the relation line Lr4 is closer to the horizontal and the relation line Lr4 is longer. Further, by setting the shortest inter-process time Tb4 to zero, it is possible to display a purely in-process time.

JP 2018-041436 A

  According to the technique described in Patent Document 1, as shown in FIG. 13, when the number of semifinished products is small, it is easy to grasp the difference in the residence time. However, when the number of semi-finished products increases, the relationship line becomes complicated, and it becomes difficult to understand the difference in the residence time. Further, since the difference in residence time is expressed by the relation line, it is difficult to apply the relation line to the utilization plan of the sub-material even when the semi-finished product requires the sub-material. Further, if a desired time zone is designated and a semi-finished product in the time zone is to be extracted, it is necessary for the user to visually determine the semi-finished product, which is extremely time-consuming.

  An object of the present invention is to solve the above-described problem and to provide a device and a method for displaying in-process information on semi-finished products in a desired time zone.

According to a first aspect of the present invention,
A plurality of semi-finished products pass through a plurality of predetermined processes, respectively, a process for each semi-finished product is performed in each facility corresponding to each of the processes, and a production factory where a predetermined product is produced, Based on a simulation result or production results on the time axis in each of the steps, based on the in-process information display device to display the in-process information of the semi-finished product,
A semi-finished product information storage unit that stores a processing start time and a processing end time in each of the plurality of semi-finished products,
A target facility that is a display target of the in-process information of the respective facilities, and a target time zone that is a time zone of a display target of the in-process information, and a process extraction target storage unit that stores therein.
From the semi-finished product information storage unit, the equipment of the current process matches the target equipment, the processing end time or the processing start time in the previous process immediately before the current process is earlier than the end time of the target time zone, And an extraction target determination unit that extracts a semi-finished product whose processing end time or processing start time in the current process is after the start time of the target time zone, as a semi-finished product that is a semi-finished product to be displayed as the semi-finished information. ,
Display and
A work-in-progress chart in which the processing end time or the processing start time of the previous process of the work-in-process semi-finished product as a starting point and the processing end time or the processing start time of the current process of the work-in-process semi-finished product as an end point, and the start of the target time zone A time and an end time, a display control unit that displays the in-process information on the display,
It is provided with.

A second aspect of the present invention provides:
A plurality of semi-finished products pass through a plurality of predetermined processes, respectively, a process for each semi-finished product is performed in each facility corresponding to each of the processes, and a production factory where a predetermined product is produced, Based on a simulation result or production results on a time axis in each of the steps, a work information display method for displaying work information of the semi-finished product,
The equipment to be displayed for the in-process information among the equipments is defined as a target equipment,
The time zone for which the in-process information is displayed is defined as a target time zone,
The in-process information display method,
From the semi-finished product information storage unit that stores the processing start time and the processing end time in each of the plurality of semi-finished products, the equipment in the current process matches the target equipment, and the one before the current process. A semi-finished product whose processing end time or processing start time in the previous process is earlier than the end time of the target time zone, and whose processing end time or processing start time in the current process is after the start time of the target time zone, Extraction target determination step to extract as a semi-finished product that is a semi-finished product to be displayed for the semi-finished information,
A work-in-progress chart in which the processing end time or the processing start time of the previous process of the work-in-process semi-finished product as a starting point and the processing end time or the processing start time of the current process of the work-in-process semi-finished product as an end point, and the start of the target time zone A time and an end time, and a display control step of displaying the in-process information on a display,
It is provided with.

  In the first aspect or the second aspect, a work-in-progress chart in which a process end time or a process start time of a previous process of a work-in-process semi-finished product is set as a start point and a process end time or a process start time of a current process of the work-in-process semi-finished product is set as an end point, The start time and end time of the time zone are displayed on the display as in-process information. Therefore, according to the first mode or the second mode, the in-process information of the semi-finished product in the target facility in the target time zone can be displayed in an easily understandable manner. Further, for example, the residence time of the semifinished product can be easily grasped. Further, for example, when the sub-material is used in the target facility, the usage time of the sub-material can be easily grasped.

In the first embodiment, for example,
The display control unit further includes a Gantt chart of the previous process of the semifinished product, a processing end time or a processing start time of the Gantt chart of the previous process of the semifinished product, and a time chart of the semifinished product of the semifinished product. A relationship line connecting the starting point and a starting point may be displayed on the display as the in-process information.

  In this aspect, the Gantt chart of the pre-process of the semi-finished product and the relationship line connecting the processing end time or the processing start time of the Gantt chart of the pre-process of the semi-finished product and the starting point of the semi-finished product are shown. Is displayed on the display. Therefore, according to this aspect, the relationship of the semifinished product in process from the process in the previous process to the process in the current process can be easily grasped.

In the first embodiment, for example,
The display control unit may further include a Gantt chart of the current process of the semifinished product, an end point of the semifinished product of the semifinished product, and a processing end time or start of the Gantt chart of the current process of the semifinished product. A relationship line connecting the time and the time may be displayed on the display as the in-process information.

  In this aspect, the Gantt chart of the current process of the semi-finished product and the relationship line connecting the end point of the semi-finished product's in-process chart and the processing end time or the processing start time of the Gantt chart of the current process of the semi-finished product are Is displayed on the display. Therefore, according to this aspect, the relationship between the waiting time and the processing time of the semifinished product in the current process can be easily grasped.

In the first embodiment, for example,
An input unit operated by a user;
When the target equipment and the target time zone are input using the input unit, an extraction target receiving unit that stores the target equipment and the target time zone in the work-in-process extraction target storage unit,
May be further provided.

  According to this aspect, the user can set a desired facility and a time zone as the target facility and the target time zone.

  According to the present invention, the process end time or the process start time of the previous process of the semi-finished product is a starting point, the process end time or the process start time of the current process of the semi-finished product is the end point, Since the start time and the end time are displayed on the display as the in-process information, the in-process information of the semi-finished product in the target time zone in the target facility can be displayed in an easily understandable manner.

It is a block diagram showing the example of composition of the in-process information display device in this embodiment. FIG. 4 is a diagram schematically illustrating semi-finished product information stored in a semi-finished product information storage unit. It is a figure which shows roughly the extraction process of the semi-finished product ID by the extraction target determination part. It is a figure which shows roughly the example of a display of the in-process information by a display control part. It is a figure which shows the comparative example of in-process information schematically. It is a flowchart which shows an example of the operation | movement procedure of the in-process information display apparatus of this embodiment schematically. 7 is a flowchart schematically showing a subroutine of FIG. 7 is a flowchart schematically showing a subroutine of FIG. It is a figure which shows the in-process chart showing the use time of an auxiliary | assistant material schematically. It is a figure which shows the in-process chart showing the use time of an auxiliary | assistant material schematically. It is a figure which shows the in-process chart showing the use time of an auxiliary | assistant material schematically. It is a figure which shows the in-process chart showing the use time of an auxiliary | assistant material schematically. It is a figure which shows the example of a display in a prior art schematically.

(Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed description is omitted as appropriate.

  FIG. 1 is a block diagram schematically illustrating an example of the configuration of the in-process information display device 100 according to the present embodiment. As shown in FIG. 1, the in-process information display device 100 includes a display 110, an input unit 120, a storage device 130, and a control circuit 140. The control circuit 140 includes a central processing unit (CPU) 150, a memory 160, and peripheral circuits (not shown).

  In a production plant that manufactures products, a plurality of semi-finished products pass through a plurality of predetermined processes, respectively, and each semi-finished product is processed in each facility corresponding to each process, and a desired product is produced. . The in-process information display device 100 of the present embodiment illustrated in FIG. 1 is configured such that a target facility to be displayed and a target time zone that is a time zone to be displayed among the facilities corresponding to each process are set. Then, information corresponding to the target facility and the target time zone is extracted from the simulation results on the time axis in each process, and the in-process information of the semi-finished product in the target facility and the target time zone is displayed on the display 110.

  The simulation result refers to a result of performing a simulation to create a production plan. The simulation result can be said to be a temporary production plan. Usually, a plurality of simulations are performed by changing various conditions, and the most preferable simulation result is adopted as a production plan.

  The display 110 includes, for example, a liquid crystal display panel. The display 110 is controlled by the CPU 150 to display the in-process information. The display 110 is not limited to a liquid crystal display panel. The display 110 may include another panel such as an organic EL (electroluminescence) panel.

  The input unit 120 includes, for example, a mouse or a keyboard. When operated by the user, the input unit 120 outputs an operation signal indicating the content of the operation to the control circuit 140. When the display 110 is a touch panel display, a touch panel display may also serve as the input unit 120 instead of a mouse or a keyboard.

  The storage device 130 includes, for example, a hard disk or a semiconductor nonvolatile memory. The storage device 130 includes a semi-finished product information storage unit 131, a work in process extraction target storage unit 132, and an extraction result storage unit 133. The memory 160 is composed of, for example, a semiconductor memory or the like. The memory 160 includes, for example, a read-only memory (ROM), a random access memory (RAM), and an electrically erasable and rewritable ROM (EEPROM). The CPU 150 functions as an extraction target receiving unit 151, an extraction target determining unit 152, and a display control unit 153 by operating according to the control program of the present embodiment stored in, for example, a ROM of the memory 160.

  FIG. 2 is a diagram schematically showing the semi-finished product information 1000 stored in the semi-finished product information storage unit 131. From the simulation result, semi-finished product information 1000 as shown in FIG. 2 is created in advance and stored in the semi-finished product information storage unit 131 in advance. As shown in FIG. 2, the semi-finished product information 1000 includes a semi-finished product identification information (semi-finished product ID) column 1001 and a production process column 1002.

  In the semi-finished product ID column 1001, a unique semi-finished product ID for identifying a semi-finished product included in the simulation result is registered. In the example of FIG. 2, the semi-finished product information 1000 includes n semi-finished products whose semi-finished product IDs are “HF1” to “HFn”.

  In the production process column 1002, unique equipment identification information (equipment ID) for identifying equipment for which the corresponding semi-finished product is processed is registered from the left in the order in which the semi-finished product is processed. In the production process column 1002, a processing start time and a processing end time when a semi-finished product is processed by the equipment specified by the equipment ID are registered corresponding to the equipment ID. In the example of FIG. 2, the semi-finished product having the semi-finished product ID “HF2” is first processed in the facility with the equipment ID “M1hf2” from the processing start time “S1hf2” to the processing end time “E1hf2”. The equipment with the equipment ID "M2hf2" is processed from the processing start time "S2hf2" to the processing end time "E2hf2". Finally, with the equipment with the equipment ID "Mkhf2", the processing is ended from the processing start time "Skhf2". Processing is performed until time “Ekhf2”. Through these production steps, a desired product is produced from the semi-finished product having the semi-finished product ID “HF2”.

  In the example of FIG. 2, different IDs are assigned to the equipment IDs of the production processes through which each semi-finished product passes. However, different symbols may represent the same facility. For example, each semi-finished product may be processed continuously or discretely multiple times in the same facility. Also, different semi-finished products may be processed in the same facility. Further, in the example of FIG. 2, each semi-finished product passes through k production steps, but each semi-finished product may have a different number of production steps.

  Returning to FIG. 1, when the target equipment and the target time zone for which the in-process information is to be displayed on the display 110 are input using the input unit 120, the input target equipment and the target The time period is received as an extraction target to be extracted from the semi-finished product information storage unit 131, and is stored in the in-process extraction target storage unit 132. The target facility and the target time zone may be directly input using, for example, a keyboard of the input unit 120. Alternatively, the target facility and the target time zone may be selectively input from a menu displayed on the display 110 using, for example, a mouse or a touch panel of the input unit 120.

  The extraction target determination unit 152 reads the target equipment and the target time zone from the in-process extraction target storage unit 132, and extracts the semi-finished product ID to be extracted from the semi-finished product information storage unit 131 using the target equipment and the target time zone. . The extraction target determination unit 152 determines the extracted semi-finished product ID, the process start time and the process end time of the current process of the semi-finished product ID, the process start time and the process end time of the previous process immediately before the current process. Are stored in the extraction result storage unit 133. The display control unit 153 uses the data stored in the extraction result storage unit 133 to display the in-process information of the target facility and the target time zone on the display 110.

  FIG. 3 is a diagram schematically illustrating a process of extracting the semi-finished product ID by the extraction target determining unit 152. FIG. 4 is a diagram schematically illustrating a display example of the in-process information by the display control unit 153. FIG. 5 is a diagram schematically illustrating a comparative example of in-process information.

The extraction target determining unit 152 extracts a semi-finished product ID that satisfies all three conditions (CN1), (CN2), and (CN3) described below from the semi-finished product information storage unit 131.
Condition (CN1): The equipment of the current process matches the input target equipment.
Condition (CN2): the processing end time in the previous process is earlier than the end time in the target time zone.
Condition (CN3): the processing end time in the current process is after the start time of the target time zone.

  In the example of FIG. 3, semi-finished product IDs of semi-finished products satisfying the condition (CN1) (that is, semi-finished products processed by the input target facility) are “P01” to “P08”. Hereinafter, for example, a semi-finished product whose semi-finished product ID is “P01” is also referred to as “semi-finished product P01”. FIG. 3 shows two time axes TA above and below, respectively, for simplicity.

  Along the lower time axis TA in FIG. 3, the processing status STp of the current process of the semi-finished products P01 to P08 is shown. Along the upper time axis TA in FIG. 3, the processing status STb in the previous process of the semi-finished products P01 to P08 is shown. The pre-process is one process before the current process in which the semi-finished product is processed in the target facility, and the same facility may be used for each semi-finished product, or different facilities may be used for each semi-finished product. In the example of FIG. 3, the processing statuses STp and STb of the semi-finished products P01 to P08 are each indicated by a rectangle. The front end of this rectangle, which is the upstream end on the time axis TA, represents the processing start time, and the rear end, which is the downstream end on the time axis TA, represents the processing end time.

  In FIG. 3, in-process status PWIP of the semi-finished products P01 to P08 in the current process is shown at a position between the processing status STb in the previous process and the processing status STp in the current process. The work-in-progress status PWIP includes arrows indicated for each of the semi-finished products P01 to P08, starting from the processing end time of the previous process and ending at the processing end time of the current process. In the example of FIG. 3, arrows corresponding to the semi-finished products P01, P02, and P08 are indicated by broken lines, and arrows corresponding to the semi-finished products P03 to P07 are indicated by solid lines. Further, the in-process status PWIP includes a target time zone TTP indicated by a double-headed arrow between the start time Ts and the end time Te.

  Of the semi-finished products P01 to P08 satisfying the condition (CN1), the semi-finished product P08 has a processing end time in the previous process that is later than the end time Te of the target time zone TTP. Therefore, the semi-finished product P08 does not satisfy the condition (CN2). Further, among the semi-finished products P01 to P08, the semi-finished products P01 and P02 have the processing end time in the current process earlier than the start time Ts of the target time zone TTP. Therefore, the semi-finished products P01 and P02 do not satisfy the condition (CN3). As described above, in the example of FIG. 3, the semi-finished products satisfying all three conditions (CN1), (CN2), and (CN3) are semi-finished products P03 to P07 other than the semi-finished products P01, P02, and P08.

  As described above, in the present embodiment, the extraction target determination unit 152 extracts the semi-finished products P03 to P07 from the semi-finished product information storage unit 131 and stores the semi-finished products P03 to P07 in the extraction result storage unit 133. In addition, the extraction target determination unit 152 stores the processing start time and the processing end time of the current process of the semi-finished products P03 to P07 and the processing start time and the processing end of the previous process of the semi-finished products P03 to P07 from the semi-finished product information storage unit 131. The time is read and stored in the extraction result storage unit 133.

  The display control unit 153 displays the in-process information IWIP of the current process on the display 110 using the data stored in the extraction result storage unit 133. The display control unit 153 reads the processing start time and the processing end time of the previous process of the semi-finished products P03 to P07 stored in the extraction result storage unit 133, respectively, and as shown in FIG. Is displayed, for example, on the upper part of the display 110. The display control unit 153 reads the processing start time and the processing end time of the current process of the semi-finished products P03 to P07 stored in the extraction result storage unit 133, respectively, and displays the Gantt chart GCp representing the processing status of the current process on the display 110. For example, displayed at the bottom.

  The display control unit 153 further displays the in-process status WIPC of the semi-finished products P03 to P07 in the current process in an area between the Gantt chart GCp in the current process and the Gantt chart GCb in the previous process on the display 110. The in-process status WIPC includes in-process charts IC03 to IC07 for each semi-finished product. The work-in-progress charts IC03 to IC07 represent the residence time of the semi-finished products P03 to P07 in the current process (that is, the time during which the semi-finished products P03 to P07 are in the work in progress in the current process). The in-process charts IC03 to IC07 are each formed by an arrow or a thin rectangle starting from the processing end time of the previous process of the semi-finished products P03 to P07 and ending at the processing end time of the current process. In the example of FIG. 4, the in-process charts IC03 to IC07 are formed by arrows.

  The display control unit 153 further displays the target time zone TTP in which the start time Ts and the end time Te are specified on the display 110. In the example of FIG. 4, the display control unit 153 indicates the start time Ts and the end time Te by a broken line on the time axis TA, and sets the target time zone TTP by the broken line of the start time Ts and the broken line of the end time Te. This is indicated by a connecting double-headed arrow.

  The display control unit 153 further displays, on the display 110, relation lines Lb03 to Lb07 connecting the starting points of the in-process charts IC03 to IC07 and the processing end time of the Gantt chart in the previous process. The display control unit 153 further displays, on the display 110, relation lines Lp03 to Lp07 connecting the end points of the in-process charts IC03 to IC07 and the processing end time of the Gantt chart in the current process.

  In this manner, in the example of FIG. 4, the in-process in-process information IWIP displayed on the display 110 includes the Gantt chart GCb in the previous process, the Gantt chart GCp in the current process, and the in-process status WIPC. The in-process status WIPC includes an in-process chart IC03 to IC07, a target time zone TTP, a start time Ts and an end time Te of the target time zone TTP, and relation lines Lb03 to Lb07 and Lp03 to Lp07.

  On the other hand, in the comparative example of the in-process information shown in FIG. 5, the semi-finished product ID and the in-process amount are stored in the storage device at regular intervals (one day in the example of FIG. 5) in association with the time. . Further, the equipment M, which is the equipment ID of the current process, is stored in the storage device. Therefore, if it matches the storage timing of the in-process information, it is possible to confirm which semi-finished product ID is in process in the current process (equipment M in the example of FIG. 5) at an arbitrary time (for example, day). it can. However, it is difficult to correctly know the semi-finished product ID in process in the current process (equipment M in the example of FIG. 5) at a time (for example, 15:00 of 9/4) other than the storage timing of the in-process information.

  Further, it is difficult to specify the time zone in the in-process information of FIG. 5 and to correctly know the semi-finished product ID that is in process in the time zone. For example, in FIG. 5, if it is desired to know the semi-finished product ID that is in process between 9/3 and 9/8, even if all the semi-finished product IDs of each day from 9/3 to 9/8 are extracted, 1 Since there is no information on the in-process situation in the middle of the day, correct results are not always obtained. In this case, the accuracy of the obtained information is improved by making the storage timing of the in-process information sufficiently fine. However, when there are many types of semi-finished products such as a large-scale production factory, if the timing of saving the in-process information is made fine, the data amount of the semi-finished products to be stored becomes enormous, which is not practical.

  In contrast, in the present embodiment, the in-process information IWIP shown in FIG. According to the in-process information IWIP, in the target time zone TTP (for example, one day), the number of semi-finished products in process at the same time is one or two, but the semi-finished products in process in the target time zone TTP. It can be seen that the number of semi-finished products P03 to P07 is five in the unit of semi-finished product ID. For this reason, when it takes, for example, one day for the sub-materials necessary for the semi-finished product to be reusable in the current process, it is understood that at least five sub-materials are required in the target time zone TTP. Therefore, the in-process chart IC03 and the like included in the in-process information IWIP represent the use plan of the sub-material. The auxiliary material is, for example, a spool of a rolled coil, a pallet for placing a semi-finished product in process, or the like. For example, when a plurality of plate-shaped semi-finished products are stacked on the pallet, the pallet is occupied until the processing of the last semi-finished product is started.

  Further, as shown in FIG. 4, when the in-process information IWIP is displayed on the display 110, it is easily understood that the residence time of a semi-finished product having a long in-process chart is long. For this reason, in the present process, when it is desired to secure a storage space for some reason, it is understood that it is desirable to temporarily move the semi-finished product P05 having the longest residence time to another location.

  FIG. 6 is a flowchart schematically illustrating an example of an operation procedure of the in-process information display device 100 according to the present embodiment. The operation of FIG. 6 is repeatedly executed at regular intervals (for example, 100 msec). As described above, the semi-finished product information 1000 is created in advance from the simulation result and stored in the semi-finished product information storage unit 131 in advance.

  In step S1000 in FIG. 6, the extraction target receiving unit 151 receives the input of the target equipment and the target time zone using the input unit 120, and stores the input in the in-process extraction target storage unit 132. In step S1005 (corresponding to an example of the extraction target determination step), the extraction target determination unit 152 extracts a semi-finished product ID that satisfies the above extraction conditions (CN1), (CN2), and (CN3) from the semi-finished product information storage unit 131. Then, it is stored in the extraction result storage unit 133.

  FIG. 7 is a flowchart schematically showing a subroutine of step S1005 in FIG. In step S2000 of FIG. 7, the extraction target determination unit 152 selects a semi-finished product ID from the semi-finished product information 1000 stored in the semi-finished product information storage unit 131. In the example of FIG. 2, the extraction target determination unit 152 may first select the semi-finished product ID “HF1”. In step S2005, the extraction target determination unit 152 selects the equipment ID as the equipment of the current process from among the processes in which the selected semi-finished product ID is processed. In the example of FIG. 2, the extraction target determination unit 152 may first select the equipment ID “M1hf1”.

  In step S2010, the extraction target determination unit 152 determines whether the selected equipment ID matches the target equipment. That is, in step S2010, it is determined whether the condition (CN1) is satisfied. If the equipment ID matches the target equipment (YES in step S2010), the process proceeds to step S2015. On the other hand, if the equipment ID does not match the target equipment (NO in step S2010), the process proceeds to step S2035.

  In step S2015, the extraction target determination unit 152 reads from the semi-finished product information storage unit 131 the processing end time of the previous process and the current process of the equipment ID that matches the target equipment, and determines the start time and end time of the target time zone. It is read from the extraction target storage unit 132. In step S2020, the extraction target determination unit 152 determines whether the processing end time in the previous process is earlier than the end time of the target time zone. That is, in step S2020, it is determined whether the condition (CN2) is satisfied. If the processing end time in the previous process is earlier than the end time of the target time zone (YES in step S2020), the process proceeds to step S2025. On the other hand, if the processing end time in the previous process is not earlier than the end time of the target time zone (NO in step S2020), the process proceeds to step S2035.

  In step S2025, the extraction target determination unit 152 determines whether the processing end time in the current process is after the start time of the target time zone. That is, in step S2025, it is determined whether the condition (CN3) is satisfied. If the processing end time in the current process is after the start time of the target time zone, that is, if the process end time in the current process is later or the same as the start time of the target time zone (YES in step S2025), the process is terminated. Proceed to step S2030. On the other hand, if the processing end time in the current process is earlier than the start time of the target time zone (NO in step S2025), the process proceeds to step S2035.

  In step S2030, since the semi-finished product ID selected in step S2000 satisfies the conditions (CN1), (CN2), and (CN3), the extraction target determining unit 152 temporarily stores the semi-finished product ID in, for example, the RAM of the memory 160. To save.

  In step S2035, the extraction target determination unit 152 determines whether or not all the processes (equipment IDs) have been completed. If all processes (equipment IDs) have been completed (YES in step S2035), the process proceeds to step S2040. On the other hand, if all processes (equipment IDs) have not been completed (NO in step S2035), the process returns to step S2005, and extraction target determination section 152 selects an unselected process (equipment ID). The above steps are repeated.

  In step S2040, the extraction target determination unit 152 determines whether the process has been completed for all the semi-finished product IDs. If the processing has been completed for all the semi-finished product IDs (YES in step S2040), the process proceeds to step S2045. On the other hand, if the processing has not been completed for all the semi-finished product IDs (NO in step S2040), the process returns to step S2000, and the extraction target determination unit 152 selects a semi-finished product ID that has not yet been selected, and Is repeated.

  In step S2045, the extraction target determination unit 152 stores the semi-finished product ID stored in, for example, the RAM of the memory 160 in the in-process extraction target storage unit 132, and the subroutine in FIG. 7 ends.

  Returning to FIG. 6, in step S1010, the extraction target determination unit 152 determines the processing start time and the processing end time of the previous process and the current process of each semi-finished product ID stored in the in-process extraction target storage unit 132 in step S1005. It is read from the semi-finished product information storage unit 131 and is stored in the work-in-process extraction target storage unit 132 in association with each semi-finished product ID. In step S1015 (corresponding to an example of the display control step), the display control unit 153 displays the in-process information IWIP of the current process on the display 110.

  FIG. 8 is a flowchart schematically showing a subroutine of step S1015 in FIG. In step S3000 in FIG. 8, the display control unit 153 selects a semi-finished product ID. In step S3005, the display control unit 153 reads the processing start time and processing end time of the previous process of the selected semi-finished product ID from the in-process extraction target storage unit 132, and displays the Gantt chart of the previous process on the display 110. . In step S3010, the display control unit 153 reads the process start time and process end time of the current process of the selected semi-finished product ID from the in-process extraction target storage unit 132, and displays the Gantt chart of the current process on the display 110. .

  In step S3015, the display control unit 153 displays, on the display 110, a work-in-progress chart of the selected semi-finished product ID starting from the processing end time of the previous process and ending at the processing end time of the current process. In step S3020, the display control unit 153 displays, on the display 110, a relationship line connecting the starting point of the work-in-progress chart and the processing end time of the Gantt chart in the previous process. In step S3025, the display control unit 153 displays on the display 110 a relationship line connecting the end point of the in-process chart and the processing end time of the Gantt chart in the current process.

  In step S3030, the display control unit 153 determines whether the process has been completed for all the semi-finished product IDs. If the processing has been completed for all semi-finished product IDs (YES in step S3030), the process proceeds to step S3035. On the other hand, if the processing has not been completed for all the semi-finished product IDs (NO in step S3030), the process returns to step S3010, the display control unit 153 selects a semi-finished product ID that has not been selected, and performs the above steps. Repeated.

  In step S3035, the display control unit 153 displays the target time zone TTP, the start time Ts and the end time Te on the display 110, ends the subroutine in FIG. 8, and ends the operation in FIG.

  As described above, in the present embodiment, as described with reference to the comparative example of FIG. 5, for example, information on a semifinished product in process is not stored at a predetermined timing. In the present embodiment, as described with reference to FIG. 4, for example, when a desired target time zone is input, the in-process semi-finished products staying at the target equipment in the target time zone are individually extracted. Can be. Thus, according to the present embodiment, unlike the related art described with reference to FIG. 13, for example, even in a large-scale production factory where the number of processes or the number of semi-finished products in process is enormous, each semi-finished product ID In addition, it is possible to grasp the quantity of semi-finished products in process staying in the target equipment in the target time zone.

  In the present embodiment, a desired target time zone is input, and semi-finished products in the target time zone are individually extracted. For this reason, it is possible to create a plan for transferring a specific semi-finished product to another intermediate yard so that the yard of the target equipment does not overflow during the time period when the number of semi-finished products in process increases. In addition, a process change plan can be created for a semi-finished product that can be transferred to another facility during a time period when the number of semi-finished products is increasing. Further, when a sub-material (for example, a spool of a rolled coil) is required for each semi-finished product in process, the necessary amount of the sub-material in the target time zone can be grasped.

(Modified embodiment)
(1) In the above embodiment, the display control unit 153 displays the in-process charts IC03 to IC07, the Gantt chart GCb of the previous process, the Gantt chart GCp of the current process, the relation lines Lb03 to Lb07, Lp03 to Lp07, and the target time zone TTP. Although the in-process information IWIP of the process is displayed on the display 110, the invention is not limited to this.

  For example, the display control unit 153 may display only the in-process charts IC03 to IC07, the Gantt chart GCb of the previous process, and the target time zone TTP on the display 110. For example, the display control unit 153 may display only the in-process charts IC03 to IC07, the Gantt chart GCp of the current process, and the target time zone TTP on the display 110. For example, the display control unit 153 may display only the in-process charts IC03 to IC07, the Gantt chart GCb of the previous process, the Gantt chart GCp of the current process, and the target time zone TTP on the display 110.

  For example, the display control unit 153 may display only the in-process charts IC03 to IC07, the Gantt chart GCb of the previous process, the relation lines Lb03 to Lb07, and the target time zone TTP. For example, the display control unit 153 may display on the display 110 only the in-process charts IC03 to IC07, the Gantt chart GCp of the current process, the relation lines Lp03 to Lp07, and the target time zone TTP. The display control unit 153 only needs to display at least the in-process charts IC03 to IC07 and the target time zone TTP on the display 110.

  (2) In the above embodiment, the semi-finished product information 1000 (FIG. 2) is created in advance from the simulation result and stored in the semi-finished product information storage unit 131 in advance. Alternatively, semi-finished product information 1000 (FIG. 2) may be created in advance from production results and stored in the semi-finished product information storage unit 131 in advance. By using production results, for example, in the event of a shortage of auxiliary materials during production, looking back on the basis of past data, it is easy to determine the cause, such as when there were more semi-finished products than expected at the time of the shortage. You can find out. Further, by using the production results, for example, a semi-finished product ID staying in a specific facility in a specific time zone (for example, one week last week) can be easily confirmed. As described above, by using the production results, by inputting the desired target equipment and the target time zone using the input unit 120, the semi-finished product ID that has stayed in the past specific equipment in the specific time zone can be obtained. You can easily find out.

  (3) In the above embodiment, the condition “the processing end time in the previous process is earlier than the end time of the target time zone” is used as the condition (CN2). A condition that “the processing start time in the previous process is earlier than the end time of the target time zone” may be used as (CN4).

  In the above embodiment, the condition "the processing end time in the current process is after the start time of the target time zone" is used as the condition (CN3), but the condition (CN3) is replaced with the condition (CN3). A condition that “the processing start time in the current process is after the start time of the target time zone” may be used as (CN5).

  Before using the in-process information display device 100, the user sets the conditions (CN2) and (CN3) in addition to the condition (CN1) according to the purpose of using the result of the in-process information display device 100 of the above embodiment. It is only necessary to decide whether to use, conditions (CN4) and (CN3), conditions (CN2) and (CN5), or conditions (CN4) and (CN5). For example, the user may be able to determine which combination to use by using the input unit 120.

  9 to 12 are schematic diagrams each showing a work-in-progress chart showing the use time of the auxiliary material used in the process. The usage time of the auxiliary material differs depending on the type of the auxiliary material and the type of equipment. An example of a combination of conditions when the result of the in-process information display device 100 is used for the use plan of the auxiliary material will be described with reference to FIGS.

  FIG. 9 shows a case where the conditions (CN2) and (CN3) are used, as in the above embodiment. In FIG. 9, a pallet on which a lot of the semi-finished product P11 is loaded is used as an auxiliary material. In the processing of the semi-finished product P11 represented by the Gantt chart GCb in the previous process, a batch process in which a plurality of batches are processed is performed. In the processing of the semi-finished product P11 represented by the Gantt chart GCp in the current process, Single-piece processing is performed in which each piece is separately processed. Since batch processing is performed in the previous process, the starting point of the work-in-progress chart Tm11 representing the pallet use time is the processing end time Teb11 of the previous process. Therefore, the relationship line Lb11 connects the rear end of the Gantt chart in the previous process and the starting point of the work-in-progress chart Tm11 indicating the pallet use time. Further, since the single process is performed in the current process, the end point of the work-in-progress chart Tm11 indicating the use time of the pallet (that is, the time at which the pallet is released) is the process end time Tep11 of the current process. Therefore, the relation line Lp11 connects between the rear end of the Gantt chart in the current process and the end point of the in-process chart Tm11 indicating the pallet use time.

  FIG. 10 shows a case where the conditions (CN4) and (CN3) are used. In FIG. 10, a pallet on which a lot of the semi-finished product P12 is loaded or a spool of a rolled coil is used as the auxiliary material. In the processing of the semi-finished product P12 represented by the Gantt chart GCb in the previous step and the processing of the semi-finished product P12 represented by the Gantt chart GCp in the current step, the single-piece processing that is separately processed one by one is performed. Done. Since the single item process is performed in the previous process, the starting point of the work-in-progress chart Tm12 indicating the use time of the pallet or the spool is the process start time Tsb12 of the previous process. Therefore, the relation line Lb12 connects the front end of the Gantt chart in the previous process and the starting point of the in-process chart Tm12 indicating the pallet use time. Further, since the single item processing is also performed in the current process, the end point of the work-in-process chart Tm12 indicating the use time of the pallet or the spool is the process end time Tep12 of the current process. Therefore, the relationship line Lp12 connects the rear end of the Gantt chart in the current process and the end point of the work-in-progress chart Tm12 indicating the pallet use time.

  FIG. 11 shows a case where the conditions (CN2) and (CN5) are used. In FIG. 11, a pallet on which only one semi-finished product P13 is loaded is used as an auxiliary material. For this reason, the starting point of the in-process chart Tm13 indicating the pallet use time is the processing end time Teb13 of the previous process. Therefore, the relation line Lb13 connects between the rear end of the Gantt chart in the previous process and the starting point of the work-in-progress chart Tm13 indicating the pallet use time. Further, the end point of the in-process chart Tm13 representing the use time of the pallet (that is, the time when the pallet is released) is the processing start time Tsp13 of the current process. Therefore, the relation line Lp13 connects the front end of the Gantt chart in the current process and the end point of the work-in-progress chart Tm13 representing the pallet use time.

  FIG. 12 shows a case where the conditions (CN4) and (CN5) are used. In FIG. 12, a pallet on which a lot of the semi-finished product P14 is loaded is used as an auxiliary material. Then, in the processing of the semi-finished product P14 represented by the Gantt chart GCb in the previous process, single-piece processing is performed, which is separately performed one by one. In the processing of the semi-finished product P14 represented by the Gantt chart GCp in the current process, A batch process is performed in which a plurality of batch processes are performed. Since the single item process is performed in the previous process, the starting point of the work-in-progress chart Tm14 representing the pallet use time is the process start time Tsb14 of the previous process. Therefore, the relation line Lb14 connects the front end of the Gantt chart in the previous process and the starting point of the work-in-progress chart Tm14 indicating the pallet use time. In addition, since the batch process is performed in the current process, the end point of the in-process chart Tm14 indicating the use time of the pallet (that is, the time when the pallet is released) is the process start time Tsp14 of the current process. Therefore, the relationship line Lp14 connects the front end of the Gantt chart in the current process and the end point of the in-process chart Tm14 indicating the pallet use time.

  As described with reference to FIGS. 9 to 12, whether the conditions (CN2) and (CN3) are used, the conditions (CN4) and (CN3) are used, the conditions (CN2) and (CN5) are used, Whether to use the conditions (CN4) and (CN5) may be determined based on the type of auxiliary material and the type of equipment. As a result, it is possible to easily grasp the usage time of the auxiliary material. Therefore, the result of the in-process information display device 100 can be suitably used for the use plan of the auxiliary material.

  (4) In the above embodiment, the start time Ts and the end time Te of the target time zone TTP are different, but the present invention is not limited to this. For example, the start time Ts and the end time Te may have the same value. That is, the target time zone TTP may be set to zero. For example, when the user wants to know the situation at that moment, the user may use the input unit 120 to set the start time Ts and the end time Te to the same value.

Reference Signs List 100 in-process information display device 110 display 120 input unit 131 semi-finished product information storage unit 132 in-process extraction target storage unit 151 extraction target reception unit 152 extraction target determination unit 153 display control unit

Claims (5)

A plurality of semi-finished products pass through a plurality of predetermined processes, respectively, a process for each semi-finished product is performed in each facility corresponding to each of the processes, and a production factory where a predetermined product is produced, Based on a simulation result or production results on the time axis in each of the steps, based on the in-process information display device to display the in-process information of the semi-finished product,
A semi-finished product information storage unit that stores a processing start time and a processing end time in each of the plurality of semi-finished products,
A target facility that is a display target of the in-process information of the respective facilities, and a target time zone that is a time zone of a display target of the in-process information, and a process extraction target storage unit that stores therein.
From the semi-finished product information storage unit, the equipment of the current process matches the target equipment, the processing end time or the processing start time in the previous process immediately before the current process is earlier than the end time of the target time zone, And an extraction target determination unit that extracts a semi-finished product whose processing end time or processing start time in the current process is after the start time of the target time zone, as a semi-finished product that is a semi-finished product to be displayed as the semi-finished information. ,
Display and
A work-in-progress chart in which the processing end time or the processing start time of the previous process of the work-in-process semi-finished product as a starting point and the processing end time or the processing start time of the current process of the work-in-process semi-finished product as an end point, and the start of the target time zone A time and an end time, a display control unit that displays the in-process information on the display,
In-process information display device comprising: The display control unit further includes a Gantt chart of the previous process of the semifinished product, a processing end time or a processing start time of the Gantt chart of the previous process of the semifinished product, and a time chart of the semifinished product of the semifinished product. And a relationship line connecting the starting point, and displaying the in-process information on the display,
The in-process information display device according to claim 1. The display control unit may further include a Gantt chart of the current process of the semifinished product, an end point of the semifinished product of the semifinished product, and a processing end time or start of the Gantt chart of the current process of the semifinished product. And a relationship line connecting between the time and, on the display as the in-process information,
The in-process information display device according to claim 1. An input unit operated by a user;
When the target equipment and the target time zone are input using the input unit, an extraction target receiving unit that stores the target equipment and the target time zone in the work-in-process extraction target storage unit,
The in-process information display device according to any one of claims 1 to 3, further comprising: A plurality of semi-finished products pass through a plurality of predetermined processes, respectively, a process for each semi-finished product is performed in each facility corresponding to each of the processes, and a production factory where a predetermined product is produced, Based on a simulation result or production results on a time axis in each of the steps, a work information display method for displaying work information of the semi-finished product,
The equipment to be displayed for the in-process information among the equipments is defined as a target equipment,
The time zone for which the in-process information is displayed is defined as a target time zone,
The in-process information display method,
From the semi-finished product information storage unit that stores the processing start time and the processing end time in each of the plurality of semi-finished products, the equipment in the current process matches the target equipment, and the one before the current process. A semi-finished product whose processing end time or processing start time in the previous process is earlier than the end time of the target time zone, and whose processing end time or processing start time in the current process is after the start time of the target time zone, Extraction target determination step to extract as a semi-finished product that is a semi-finished product to be displayed for the semi-finished information,
A work-in-progress chart in which the processing end time or the processing start time of the previous process of the work-in-process semi-finished product as a starting point and the processing end time or the processing start time of the current process of the work-in-process semi-finished product as an end point, and the start of the target time zone A time and an end time, and a display control step of displaying the in-process information on a display,
In-process information display method provided with.

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