JP2022156498A - Manufacturing management system for construction machinery - Google Patents

Abstract

To provide a manufacturing management system for construction machinery capable of recognizing delays in manufacturing processes at a manufacturing site.SOLUTION: A manufacturing management system includes a first monitoring unit that monitors the manufacturing status of a first work-in-progress on a first work-in-progress production line, a second monitoring unit that monitors the manufacturing status of a second work-in-progress on a second work-in-progress production line, a monitor, and a control device. The control device includes a delay determination unit that determines delays in the manufacturing processes of the first work-in-progress production line and the second work-in-progress production line, and an output unit. The delay determination unit determines the delays of the manufacturing processes in the first work-in-progress production line and the second work-in-progress production line (S103, 106) based on the manufacturing status of the first work-in-progress and the second work-in-progress monitored by the first monitoring unit and the second monitoring unit, respectively. The output unit outputs data to the monitor for displaying: the manufacturing status of the first work-in-progress and the second work-in-progress on the same graph (S105, 107, 108), and information about the delays in the manufacturing processes of the first work-in-progress production line and the second work-in-progress production line determined by the delay determination unit.SELECTED DRAWING: Figure 5

Description

The present invention relates to a construction machine manufacturing management system, and more particularly to a technique for smoothing a manufacturing line.

Hydraulic excavators are generally manufactured separately into a lower running body and an upper revolving body. That is, in the manufacturing process of the hydraulic excavator, the lower traveling body and the upper revolving body are each subjected to predetermined manufacturing processes, and then the upper revolving body is mounted on the lower traveling body. Here, for example, when considering the manufacturing process of the upper rotating body, there are a plurality of processes such as a machining process, a cutting process, and an assembly process (Patent Document 1).

JP 2014-095198 A

However, in a manufacturing process having a plurality of processes such as the technology disclosed in Patent Document 1, the manufacturing process may be delayed due to a shortage of parts or the like. If the manufacturing process stagnates in this manner, the timing for combining the lower traveling body (first work in progress) and the upper revolving body (second work in progress) may be delayed, and the manufacturing may not proceed as planned.

Therefore, in such a case, since there is a risk that the manufacturing process of the stagnant product (stagnant product) will stagnate until the production of the product (post-product) manufactured on the same production line later, the stagnant product It is conceivable to remove the product from the product and manufacture the subsequent product first. However, there is a possibility that the manager who instructs to remove such stagnant products from the production line may not be aware that production is stagnant in the manufacturing process, and there is room for further improvement in the management of the production line. rice field.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to provide a manufacturing management system for construction machinery that can recognize delays in the manufacturing process at the manufacturing site.

In order to achieve the above object, the manufacturing control system for construction machinery of the present invention manufactures a first component of a construction machine as a first work-in-progress on a first work-in-progress production line, A construction machine manufacturing management system for manufacturing a second component of a construction machine as a second work-in-progress, and for manufacturing the construction machine by combining the first work-in-progress and the second work-in-progress on a completion line, a first monitoring unit that monitors the manufacturing status of the first work-in-process product on the first work-in-process manufacturing line; a second monitoring unit that monitors the manufacturing status of the second work-in-process product on the second work-in-process manufacturing line; a monitor that displays predetermined information to a person; and a control device that controls the predetermined information displayed on the monitor, wherein the control device controls the first work-in-progress monitored by the first monitoring unit. determining whether or not there is a delay in the manufacturing process of the first work-in-progress production line based on the manufacturing status of the above, and based on the manufacturing status of the second work-in-progress monitored by the second monitoring unit a delay determination unit for determining whether or not a delay has occurred in a manufacturing process of a second work-in-progress production line; It is determined that there is a delay in the manufacturing process by the graph showing the manufacturing status of the product and the second work-in-process, and the delay determination unit of the first work-in-process production line and the second work-in-process production line. and an output unit for outputting data for displaying information indicating that a manufacturing process of the work-in-progress production line is delayed.

Accordingly, based on the manufacturing status of the first work-in-progress product on the first work-in-progress production line and the second work-in-progress product on the second work-in-progress production line monitored by the first monitoring unit and the second monitoring unit, A delay in the manufacturing process of at least one of the manufacturing line and the second work-in-progress manufacturing line is determined by the delay determination unit, and the output unit outputs to the monitor the first work-in-progress manufacturing and the second work-in-process manufacturing in the first work-in-process manufacturing line. Displaying the production status of the second work-in-progress of the line on the same graph, and information on the delay of the manufacturing process of at least one of the first work-in-progress production line and the second work-in-progress production line determined by the delay determination unit By outputting data that displays, it becomes possible to recognize delays in the manufacturing process at the manufacturing site, and for example, a manager who takes command of the manufacturing site while watching the monitor can output the first work-in-progress manufacturing line and Based on the information about the delay in the manufacturing process of at least one of the second work-in-progress manufacturing lines, it is possible to give precise instructions to the workers at the manufacturing site.

As another aspect, the control device has a plan input unit into which manufacturing plans for the first work-in-progress production line and the second work-in-progress production line are input, and the delay determination unit inputs the plan By collating the manufacturing plan input to the department with the manufacturing status of the first work-in-progress and the second work-in-progress, there is no delay in the manufacturing process of the first work-in-progress production line and the second work-in-progress production line. The output unit displays information indicating the manufacturing plan input to the plan input unit on the graph, and displays information indicating that the delay has occurred. is preferably output to the monitor.

As a result, the manufacturing plan input to the plan input section is collated with the manufacturing status of the first work-in-progress on the first work-in-progress production line and the second work-in-progress on the second work-in-progress production line, and the first work-in-progress production line and the second work-in-progress production line, determine the delay of the manufacturing process, display the manufacturing plan related to the manufacturing plan input to the plan input unit in graph form, and display the information on the delay. , it is possible to clarify the difference between the manufacturing plan and the manufacturing status while displaying information about delays in the manufacturing process of at least one of the first work-in-process production line and the second work-in-progress production line. be.

In another aspect, the output unit outputs to the monitor data for blinking a graph showing the manufacturing status of the work-in-progress production line determined by the delay determining unit to be delayed among the graphs. preferably.

As a result, the output unit blinks the graph indicating the manufacturing status of the work-in-progress manufacturing line that has been determined to be delayed by the delay determining unit, so that the delayed manufacturing line can be clearly identified. It is possible to recognize

As another aspect, the first work-in-progress and the second work-in-progress are provided with an information storage device for storing information specifying the first work-in-progress and the second work-in-progress, and the first monitoring unit and a plurality of the second monitoring units are arranged on the first work-in-process manufacturing line and the second work-in-process manufacturing line, and the first monitoring unit and the second monitoring unit in the information storage device It is preferably an information reader for extracting information stored in an information store passing through the.

By extracting the information stored in the information storage device passing through the information reading device among the plurality of information storage devices arranged on the first work-in-progress production line and the second work-in-progress production line, It is possible to reliably monitor in which process the first work-in-progress and the second work-in-progress are located.

In another aspect, the first monitoring unit and the second monitoring unit each include an imaging device arranged to capture an image of at least one process in the first manufacturing line for manufacturing work-in-progress and the second manufacturing line for manufacturing work-in-progress. It is preferable that the delay determination unit determines a delay in the process of imaging by the imaging device based on the video imaged by the imaging device.

Accordingly, the delay in each process can be suitably determined by determining the delay in the process of imaging by the imaging device based on the video imaged by the imaging device.

As another aspect, at least one of the first work-in-progress and the second work-in-progress is provided with a transmitter for transmitting position information of at least one of the first work-in-progress and the second work-in-progress, At least one of the first monitoring unit and the second monitoring unit is a receiver that receives position information of at least one of the first work-in-progress and the second work-in-progress transmitted from the transmitter, and the delay determination is performed. Preferably, the unit determines said delay based on location information of at least one of said first work in progress and said second work in progress received by said receiver.

Thereby, the position information of at least one of the first work-in-progress and the second work-in-progress transmitted from the transmitter is received by the receiver, and the delay is performed based on the position information of at least one of the first work-in-progress and the second work-in-progress. , it is possible to monitor delays due to traffic jams or the like that occur during the movement, for example, even when moving to a different site when moving to the next process.

As another aspect, the monitor is preferably included in a portable tablet terminal.

As a result, by outputting the information on the delay in the manufacturing process of at least one of the first production line and the second production line for work-in-progress to the monitor included in the portable tablet terminal, the administrator can It is possible to carry out other work while monitoring the manufacturing site by carrying the .

According to the manufacturing control system for construction machinery of the present invention, the first work-in-progress production line of the first work-in-progress production line and the second work-in-progress production line of the second work-in-progress production line monitored by the first monitoring unit and the second monitoring unit Based on the manufacturing status, the delay determination unit determines the delay in the manufacturing process of at least one of the first work-in-progress production line and the second work-in-progress production line, and the output unit outputs to the monitor the delay of the first work-in-progress production line. Displaying the manufacturing status of the first work-in-process product and the second work-in-process product of the second work-in-progress production line on the same graph, and displaying at least the first work-in-progress production line and the second work-in-progress production line determined by the delay determination unit Since it is arranged to output data that displays information on delays in any one of the manufacturing processes, it is possible to recognize delays in the manufacturing process at the manufacturing site. Based on the information about the delay in the manufacturing process of at least one of the first work-in-process production line and the second work-in-progress production line output to , accurate instructions can be given to workers at the manufacturing site.

1 is a schematic diagram of a production line for a finished product of a hydraulic excavator having a lower traveling body and an upper rotating body; FIG. FIG. 3 is a block diagram showing a connection configuration of control units related to control of the management system according to the present invention; 7 is a flow chart of a routine showing a control procedure of data coupling processing control executed by a data coupling unit of a computing unit; FIG. 10 is a graph showing the manufacturing progress of a single hydraulic excavator, where the horizontal axis indicates time and the vertical axis indicates the production line; FIG. 7 is a flowchart of a routine showing a control procedure of delay determination control executed by a delay determination unit of a calculation unit; It is a graph displayed on the liquid crystal monitor of the display unit when the hydraulic excavator is manufactured according to the manufacturing plan. It is a graph displayed on the liquid crystal monitor of the display unit when a delay occurs in the manufacturing process of the hydraulic excavator.

An embodiment of the present invention will be described below with reference to the drawings.
Referring to FIG. 1, a schematic diagram of a finished product manufacturing line 1 for a hydraulic excavator 100 having a lower running body 101 and an upper revolving body 102 is shown. The hydraulic excavator 100 is a finished product that is completed by combining work-in-process products manufactured by a plurality of work-in-process production lines. Specifically, a finished product manufacturing line (manufacturing line) 1 for manufacturing the hydraulic excavator 100 includes a first work-in-process manufacturing line 11 , a second work-in-process manufacturing line 12 , and a completion line 13 . Further, a detection unit 3 (3a, 3b) is arranged in the finished product production line 1, and a control unit (control device) 5 and a display unit 7 are provided at a position away from the finished product production line 1 and the detection unit 3. are arranged.

The first work-in-progress production line 11 has a first process 21 and a second process 22. By performing the processes in the order of the first process 21 and the second process 22, the lower traveling body (first component ) is a production line capable of producing 101. The second work-in-progress production line 12 has a third process 23 and a fourth process 24. By performing the processes in the order of the third process 23 and the fourth process 24, the upper revolving body (second component ) 102. The completion line 13 has a joining process 25, and includes a lower traveling body (first work-in-process) 101 manufactured in the first work-in-process manufacturing line 11 and an upper rotating body manufactured in the second work-in-process manufacturing line 12. (Second in-process product) 102 is combined in a combining step 25, and then the hydraulic excavator (finished product) 100 can be completed.

Further, an additional process 26 is provided in the finished product production line 1 . The additional step 26 temporarily retracts the lower traveling body 101, the upper revolving body 102, and the hydraulic excavator 100 on the first work-in-process manufacturing line 11, the second work-in-process manufacturing line 12, and the completion line 13, and if necessary This is a temporary process that can be repaired as needed.

The detection unit 3 is a general term for sensors and the like that detect the progress of each process in the finished product manufacturing line 1 and monitor the manufacturing status. Specifically, the detection unit 3 includes an RFID reader (information reading device) 31 , a video camera (imaging device) 35 and a receiver 37 . For convenience of explanation, among the detection units 3, sensors and the like used in the first work-in-progress production line 11 are referred to as first detection units (first monitoring units) 3a, and sensors and the like used in the second work-in-progress production line 12 are referred to as first detection units (first monitoring units) 3a. is a second detection unit (second monitoring unit) 3b.

The RFID reader 31 is a reading device capable of reading (extracting) information stored in an RFID (Radio Frequency Identifier) tag 33 . This RFID reader 31 is arranged at a position where each process such as the first process 21 to the fourth process 24, the bonding process 25, the additional process 26, etc. is performed. On the other hand, the RFID tag (information storage device) 33 is attached to, for example, the frame of the lower traveling body 101 and the upper swinging body 102, and stores identification information such as the product number of the lower traveling body 101. FIG. Therefore, by reading the RFID tag 33 in each process, the RFID reader 31 detects information such as when the product of which product number entered and exited from which process in the lower traveling body 101 and upper revolving body 102. It is possible to monitor the manufacturing status by

The video camera 35 is an imaging device arranged at a position where each process is performed, and is capable of capturing an image of the situation in which each process is being performed. Receiver 37 is a communication device capable of receiving information transmitted from transmitter 39 . This receiver 37 is arranged near the control unit 5 . On the other hand, the transmitter 39 is a communication device capable of specifying the current location of the transmitter 39 itself by GPS (Global Positioning System) or the like. are arranged. Therefore, when the undercarriage 101 after the second step 22 is moving towards the place where the completion line 13 is carried out, the receiver 37 is undercarriage 104 through the pallet 104 on which the transmitter 39 is arranged. It is possible to specifically identify the current location of the body 101 and monitor the manufacturing status.

The display unit 7 is a tablet terminal having a liquid crystal monitor (monitor) 7 a and can communicate with the control unit 5 . The display unit 7 can display image data (predetermined information) transmitted from the control unit 5 on the liquid crystal monitor 7a. Information can be input to the display unit 7 by directly touching the liquid crystal monitor 7a. For convenience of explanation, the input unit 7b (see FIG. 2) is a virtual keyboard or a touch operation detection unit for inputting information on the liquid crystal monitor 7a.

Referring to FIG. 2, a block diagram shows the connection configuration of the control unit 5 for controlling the management system according to the present invention. The control unit 5 is a high-speed processing device that performs overall control of the management system according to the present invention. This control unit 5 has a calculation section 41 , a plan input section 43 , a storage section 45 and an output section 47 .

The calculation unit 41 is a calculation unit that performs determination and the like based on input information. Specifically, the calculator 41 has a data combiner 51 , a delay determiner 53 and a plan collator 55 . The data merging section 51 can execute data merging processing control for merging duplicate information after the merging step 25 . The delay determination unit 53 can determine the delay of the manufacturing process in the finished product manufacturing line 1 . The plan collation unit 55 can collate the production results (manufacturing status) in the finished product production line 1 with the production plan.

The plan input section 43 is an input section into which information related to the overall manufacturing plan of the finished product manufacturing line 1, which is input by the administrator by operating the input section 7b of the display unit 7, is input. The storage unit 45 is a memory that stores various calculation results by the calculation unit 41 and information input to the plan input unit 43 . The output section 47 is an output section that calculates and outputs information to be displayed on the liquid crystal monitor 7a of the display unit 7 based on the calculation result of the calculation section 41 .

Here, an RFID reader 31, a video camera 35, a receiver 37, and a display unit 7 are connected to the input side of the control unit 5 so as to be able to communicate information, for example. As a result, the control unit 5 receives the identification information such as the product number stored in the RFID tag 33 and information about the time when the RFID tag 33 was read from the RFID reader 31 , and the first process 21 from the video camera 35 . and information on the status of each process carried out in the third process 23 is input, and the chronological position information of the pallet 104 loaded with the lower traveling body 101 after the second process 22 is input from the receiver 37 and displayed. From the unit 7, information on the overall manufacturing plan of the finished product manufacturing line 1 is input via the input section 7b.
On the other hand, the display unit 7 is communicably connected to the output side of the control unit 5, and the information calculated by the output section 47 of the control unit 5 is displayed on the liquid crystal monitor 7a.

Referring to FIG. 3, there is shown a flow chart of a routine indicating a control procedure for controlling the data combining process executed by the data combining unit 51 of the computing unit 41. The control procedure for controlling the data combining process will be described below according to the same flowchart. explain.

In step S1, data (combined data) having combined flag data is extracted from data input from the RFID reader 31, video camera 35 and receiver 37, and the process proceeds to step S2. Here, the combined flag data refers to a plurality of pieces of information linked to the RFID tags 33 when the plurality of RFID tags 33 are read by the RFID reader 31 at the same time, for example.

In step S2, it is determined whether or not combined data has been extracted in step S1. If the determination result in step S2 is false (No) and it is determined that the combined data has not been extracted, the process returns to step S1. On the other hand, if the determination result of step S2 is true (Yes) and it is determined that the combined data has been extracted, the process proceeds to step S3. As a result, steps S1 and S2 are repeated until the combined data is extracted (No in step S2), and when the combined data is extracted (Yes in step S2), the process can proceed to step S3.

In step S3, component names of each data in the combined data extracted in step S1 are extracted, and the process proceeds to step S4. Here, the component name indicates the product name of the hydraulic excavator 100 such as the undercarriage (first component) 101 and the upper revolving body (second component) 102 . Next, in step S4, among the plurality of component names extracted in step S3, for example, data other than the data related to the preset representative component name, data after the combining step 25 are deleted, and step S5 is performed. transition to Then, in step S5, the labels in the graph (labels 61 and 62 in the graph of FIG. 4, which will be described later) of the data of the representative component after the combining step 25 are changed to the name (label 63) indicating the combined product. Then, the process proceeds to step S6.

Therefore, in steps S3 and S4, the data after the combining step 25 can be narrowed down to the data related to the preset representative component names, and duplication of data can be prevented. Further, in step S5, the labels 61 and 62 in the graph can be unified into a label 63 that designates the product after combination, which is the data of the representative component after the combination step 25. FIG.

In step S6, the information calculated in steps S1 to S5 is stored in the storage unit 45 as manufacturing performance data, and this routine is terminated, and this routine is repeated again. Thereby, the manager can consider improvement of the finished product production line 1 based on the information of the production performance data stored in the storage unit 45 .

FIG. 4 is a graph showing the manufacturing progress of the single hydraulic excavator 100, with the horizontal axis representing time and the vertical axis representing each manufacturing line. According to the graph, the lower traveling body 101 starts the first process 21 at 8:00 and completes it at 8:20, starts the second process 22 at 9:10 and completes it at 10:00, and completes it at 10:00. At :50 the bonding step 25 is started. On the other hand, the upper rotating body 102 starts the third process 23 at 7:00 and completes it at 7:50, starts the fourth process 24 at 8:40, completes it at 9:30, and completes it at 10:50. The bonding step 25 has started. In the processes after the connecting step 25 in the completion line 13, the hydraulic excavator 100 is manufactured by connecting the lower running body 101 and the upper revolving body 102 together.

Therefore, by executing the data combining processing control by the data combining unit 51, overlapping information after the combining step 25 can be bundled into one piece of information. Therefore, the data merging process control can reduce the amount of data managed by the control unit 5 and specify the display name to be displayed on the graph after the merging step 25 . Then, in step S6, by storing the information calculated by the data combination processing control in the storage unit 45, the manufacturing performance of the hydraulic excavator 100 related to the explanation of the data combination processing control is stored as the manufacturing performance data. It is also possible to cumulatively store production performance data.

Referring to FIG. 5, a routine showing a control procedure for delay determination control executed by the delay determination unit 53 of the calculation unit 41 is shown in a flowchart. Hereinafter, the control procedure for delay determination control will be described along the flowchart. .

In step S101, a product for delay determination is selected, and the process proceeds to step S102. Specifically, in step S101, the administrator selects the product manufactured during the time period specified via the input section 7b of the display unit 7 as the product for which delay determination is to be performed. In step S102, the manufacturing data of the product selected in step S101 is converted into a graph and output, and the process proceeds to step S103. Therefore, in steps S101 and S102, the manufacturing data in the time period designated by the administrator can be displayed in graph form on the liquid crystal monitor 7a of the display unit 7 (see FIG. 4 and FIGS. 6 and 7 described later).

In step S103, it is determined whether or not the manufacturing data of the product selected in step S101 includes data in which the execution time of the process is equal to or greater than a predetermined value. Here, the constant value means, for example, the belt conveyor that extends above the first work-in-process production line 11 or the second work-in-progress production line 12, has the lower traveling body 101 and the upper revolving body 102 mounted thereon, and is driven at a constant speed. A value obtained by dividing the distance in the target process by the speed of the belt conveyor is used. If the determination result of step S103 is false (No), and it is determined that there is no data with a time interval between steps equal to or greater than a certain value, the process moves to step S106, and the determination result of step S103 is true (Yes). If it is determined that there is data whose time interval is greater than or equal to a certain value, the process proceeds to step S104.

In step S104, the fact that there is a process related to data whose time interval between processes is equal to or greater than a certain value, that is, a process in which manufacturing is delayed, is displayed, for example, by enclosing the corresponding process on the graph with a blinking circle C. (see FIG. 7, which will be described later), and the process proceeds to step S105. In step S105, the image picked up by the video camera 35 in the delayed process is output to the output unit 47 as a small window W (see FIG. 7, which will be described later), and the process proceeds to step S106.

Therefore, in steps S103 to S105, the production status is monitored by detecting a process in which the execution time of the process is delayed by a certain value or more (step S103), and the corresponding process is surrounded by a blinking circle C. (Step S 104 ), the image (S 108 ) of the process taken by the video camera 35 is displayed on the liquid crystal monitor 7 a of the display unit 7 via the output section 47 . As a result, it is possible to make the manager aware that the process is delayed, and to inform the manager of the current state of the process by video.

After step S105, in steps S106 to S108, plan collation control by the plan collation unit 55 intervenes and the same control is executed. In step S106, based on the information on the overall manufacturing plan for the finished product manufacturing line 1 input to the plan input unit 43, it is determined whether or not there is any manufacturing data having a process in which the time difference between the manufacturing plan and the actual manufacturing result is equal to or greater than a specified value. determine whether Here, the specified value may be, for example, about 20 minutes.

If it is determined that the determination result in step S106 is false (No), and it is determined that there is no process in which the time difference between the manufacturing plan and the actual manufacturing result is equal to or greater than the specified value, the delay determination control is terminated. On the other hand, if the result of determination in step S106 is true (Yes), and it is determined that there is a process in which the time difference between the manufacturing plan and the actual manufacturing result is equal to or greater than the specified value, the process proceeds to step S107.

In step S107, a graph of the manufacturing plan for the process in which the time difference between the manufacturing plan and the actual manufacturing result is equal to or greater than a specified value is output via the output unit 47, and the process proceeds to step S108. In step S108, the graph of the actual value for the product having a process in which the time difference between the manufacturing plan and the actual manufacturing result is equal to or greater than a specified value is flashed, and the delay determination control ends.

Therefore, in steps S106 to S108, the manufacturing situation in which the manufacturing is significantly delayed from the plan, such as the time difference between the manufacturing plan and the actual manufacturing result being equal to or greater than a specified value, is monitored (step S106), and the graph related to the manufacturing plan is monitored. (S107) and the blinking graph of actual values (S108) can be displayed on the liquid crystal monitor 7a of the display unit 7. FIG.

6 shows a graph displayed on the liquid crystal monitor 7a of the display unit 7 when the excavator 100 is manufactured according to the manufacturing plan. Also, referring to FIG. 7, a graph displayed on the liquid crystal monitor 7a of the display unit 7 when a delay occurs in the second process 22 of the first work-in-process production line 11 in the lower traveling body A is shown.

5 to 7, the effects of the delay determination control will be described below. Hydraulic excavator 100 is referred to as hydraulic excavator B. Similarly, for the lower traveling body 101 and the upper revolving body 102, the lower traveling body A and the upper revolving body A, the lower traveling body A and the upper revolving body A, which were manufactured earlier, are manufactured after the lower traveling body A and the upper revolving body A. The lower running body B and the upper rotating body B are assumed to have started. Furthermore, white circles on the graphs of FIGS. 6 and 7 mean the start of the process, and black circles mean the end of the process.

First, referring to FIGS. 5 and 6, the case (Case 1) where both hydraulic excavators A and B are manufactured according to the manufacturing plan will be described. When the administrator designates hydraulic excavators manufactured during the time period from 7:00 to 17:00 through the input section 7b of the display unit 7 (step S101), the manufacturing data of the hydraulic excavators A and B are displayed in FIG. is displayed on the liquid crystal monitor 7a of the display unit 7 (step S102).

Here, since both hydraulic excavators A and B are manufactured according to the manufacturing plan, there is no data indicating that the time interval between processes is equal to or greater than a certain value (No in step S103). Since there is no process in which the difference is equal to or greater than the specified value (No in step S106), the blinking circle C (step S104) and the small window W (step S105) are not displayed, and only the graph is displayed on the liquid crystal monitor of the display unit 7. 7a.

As described above, according to the graph of FIG. 6, the data combining process control is executed by the data combining unit 51, so that the graphs after the combining step 25 can be combined into one for each of the hydraulic excavators A and B. , the graph can be suppressed from becoming complicated. Also, by displaying the labels 61, 62 and 63 on the graph, it is possible to easily recognize which product each line on the graph indicates.

Next, according to FIGS. 5 and 7, in the second process 22 of the first work-in-progress production line 11, the case (case 2) in which the production of the undercarriage A of the hydraulic excavator A is delayed is different from case 1. Explain the point.

In Case 2, at the time of the first determination in FIG. The time from when it is put into the container to when it is carried out, that is, the execution time of the second step 22 is equal to or longer than a certain value (Yes in step S103). Therefore, in case 2, in order to make the manager aware of the delay in the second process 22, the second process 22 is surrounded by a blinking circle C (step S104), and the small window W is positioned in the upper right part of the graph (step S105) The image is displayed on the liquid crystal monitor 7a of the display unit 7. FIG.

As a result, the administrator can indicate that the production of the lower traveling body A is delayed due to some reason in the second process 22 in the graph displayed on the liquid crystal monitor 7a of the display unit 7 by the blinking circle C. It can be recognized favorably. In addition, by displaying the image captured by the video camera 35 in the second step 22 in the small window W, the administrator can identify the cause of the delay occurring in the second step 22 by viewing the image captured by the video camera 35. can be determined based on

In this way, the manager who recognizes the delay in manufacturing the lower traveling body A in the second process 22 instructs the worker to move the lower traveling body A in the second process 22 to the additional process 26. , the undercarriage B can be positioned at the second step 22 instead of the preceding undercarriage A (see FIG. 7).

On the other hand, at the time of the second judgment in FIG. 7, if the lower traveling body B is positioned at the second step 22 instead of the lower traveling body A at the time of the first judgment, the lower traveling body B is placed in the second stage earlier than the manufacturing plan. Step 22 can be performed. In addition, when the second process 22 of the lower traveling body B is performed earlier than the manufacturing plan, there is a difference of a specified value or more between the production results in the second process 22 of the lower traveling body B and the manufacturing plan. (Yes in step S106). Therefore, in case 2, in order to show the manufacturing plan of the lower traveling body B as an index to the manager, the manufacturing plan is displayed in a graph (step S107), and the actual value graph is blinked (step S105).

In this way, the manager, who is shown the graph of the manufacturing plan for the lower traveling body B as an index, considers the graph of the manufacturing plan so as to manufacture the lower traveling body B, the upper revolving body B, and the hydraulic excavator B ahead of schedule. It is possible to give instructions to the worker while doing so. In addition, by displaying the manufacturing plan for the lower traveling body B whose production started after the lower traveling body A, the delay caused in the manufacturing plan for the lower traveling body 101 whose production started after the lower traveling body B is reduced. It is possible to easily consider how far ahead of schedule it is necessary to manufacture the lower traveling body B, the upper revolving body B, and the hydraulic excavator B in order to achieve this.

In particular, data combining processing control is executed by the data combining unit 51, and overlapping information after the combining step 25 is bundled into one piece of information. Even if an irregular response is made earlier, it is possible to prevent the graph from the combining step 25 onward from becoming complicated.

Next, another example of this embodiment will be described. In another embodiment, the start and end of each process are detected and determined based on the video imaged by the video camera 35 . As a result, for example, even if the manufactured product is a product to which the RFID tag 33 is difficult to attach, it is possible to generate the binding flag data based on the video imaged by the video camera 35 and to display the graph. The delay in each process can be determined based on the video imaged by the video camera 35 .

As described above, the construction machine manufacturing management system according to the present invention is a management system for the finished product manufacturing line 1 that manufactures the hydraulic excavator 100 by combining a plurality of work-in-process products. A first detection unit 3a monitors the manufacturing status of a first work-in-process manufacturing line 11 that manufactures a certain lower traveling body 101, and a second detection unit 3a monitors the manufacturing status of a second work-in-process manufacturing line 12 that manufactures an upper rotating body 102. A detection unit 3b, a liquid crystal monitor 7a of the display unit 7 that is displayed to the administrator, and a control unit 5 that calculates information to be displayed on the liquid crystal monitor 7a. It has a delay determination unit 53 that determines the delay of the second work-in-progress production line 12, and an output unit 47 that generates information to be output to the liquid crystal monitor 7a. 2 Delay in the manufacturing process of the first work-in-progress production line 11 and the second work-in-progress production line 12 based on the production status of the first work-in-progress production line 11 and the second work-in-progress production line 12 monitored by the detection unit 3b has occurred, the output unit 47 displays the manufacturing status of the first work-in-progress production line 11 and the second work-in-progress production line 12 on the same graph on the liquid crystal monitor 7a, and determines the delay. Data indicating that the manufacturing process of the first product-in-progress production line 11 and the second product-in-progress production line 12 is delayed as determined by the unit 53 is output.

Therefore, based on the manufacturing status of the first work-in-progress production line 11 and the second work-in-progress production line 12 monitored by the first detection unit 3a and the second detection unit 3b, the first work-in-progress production line 11 and the second work-in-progress production line 11 The delay in the manufacturing process of the product manufacturing line 12 is determined by the delay determining unit 53, and the manufacturing status of the first product manufacturing line 11 and the second product manufacturing line 12 are displayed on the same graph from the output unit 47 to the liquid crystal monitor 7a. , and outputs data for displaying information on the delay in the manufacturing process of the first work-in-progress production line 11 and the second work-in-progress production line 12 determined by the delay determination unit 53. Therefore, for example, the liquid crystal monitor 7a A manager who takes command of the manufacturing site while watching the production site based on the information about the delay in the manufacturing process of the first work-in-process production line 11 and the second work-in-progress production line 12 output to the liquid crystal monitor 7a can give precise instructions to workers.

The control unit 5 has a plan input section 43 to which the manufacturing plans for the first work-in-progress production line 11 and the second work-in-progress production line 12 are input. By collating the input manufacturing plan with the actual manufacturing results (manufacturing status) of the first work-in-progress production line 11 and the second work-in-progress production line 12, A delay in the manufacturing process is determined, and the output unit 47 displays the manufacturing plan related to the manufacturing plan input to the plan input unit 43 on a graph on the liquid crystal monitor 7a to indicate that a delay has occurred. Since the delay is recognized by outputting the data for displaying the information, the delay in the manufacturing process of the first work-in-progress production line 11 and the second work-in-progress production line 12 is displayed, and the production plan and production results are displayed. It is possible to clarify the difference from (manufacturing status).

Then, the output unit 47 outputs the data for blinking the graph indicating the manufacturing status of the work-in-progress production line determined by the delay determining unit 53 to be delayed. It is possible to make the manager clearly recognize the finished product production line 1 that is being processed.

The lower traveling body 101 and the upper rotating body 102 are provided with RFID tags 33 for storing information specifying the lower traveling body 101 and the upper rotating body 102. The first detection unit 3a and the second detection unit Reference numeral 3b denotes a plurality of RFID readers 31 arranged on the first work-in-process production line 11 and the second work-in-progress production line 12. Of the RFID tags 33, the RFID tag 33 passing through the RFID reader 31 stores the Since the information is extracted, it is possible to reliably detect in which process the lower traveling body 101 and the upper rotating body 102 are positioned, and to monitor the manufacturing status.

The first detection unit 3a and the second detection unit 3b have a video camera 35 arranged to capture at least one process in the first production line 11 and the second production line 12. Since the delay determination unit 53 determines the delay in the process of imaging by the video camera 35 based on the video imaged by the video camera 35, it is possible to suitably determine the delay in each process.

At least one of the lower traveling body 101 and the upper rotating body 102 is provided with a transmitter 39 for transmitting position information of at least one of the lower traveling body 101 and the upper rotating body 102, and the first detection unit 3a. and the second detection unit 3b is a receiver 37 that receives the position information of at least one of the lower traveling body 101 and the upper swing body 102 transmitted from the transmitter 39, and the delay determination unit 53 is a receiver Since the delay is determined based on the positional information of at least one of the lower traveling structure 101 and the upper rotating structure 102 received by 37, even if, for example, the operator moves to a different site when proceeding to the next process, It is possible to monitor the production status by detecting delays due to traffic jams or the like that occur during the movement.

Since the liquid crystal monitor 7a is included in the portable display unit 7, the manager can carry the display unit 7 and perform other work while monitoring the manufacturing site.

Although the description of the title of the invention according to the present invention is finished above, the present invention is not limited to the above-described embodiments, and can be changed without departing from the gist of the invention.
For example, in the present embodiment, in step S101 during delay determination control, the administrator selects a product manufactured in a time zone specified via the input section 7b of the display unit 7 as a product for delay determination. However, compared with the manufacturing plan input to the plan input unit 43, a product that is delayed more than a specified value and products before and after that may be selected as products for delay determination.

Further, in the present embodiment, in step S101 of the delay determination control, the administrator selects the product manufactured during the time zone specified via the input section 7b of the display unit 7 as the product for delay determination. However, all the products positioned on the finished product production line 1 may be automatically judged to be delayed without the operation of the manager.

Further, in this embodiment, the process in which the delay occurs in the graph is surrounded by a blinking circle C, the image of the process in which the delay occurs is displayed in the small window W, and the graph of the actual value is blinked to enable management. Although the user is made to recognize that a delay has occurred, it may be made to be made to recognize by sound or vibration, or these may be used together with display.

1 Finished product production line (manufacturing line)
3a first detection unit (first monitoring unit)
3b Second detection unit (second monitoring unit)
5 control unit (control device)
7 Display unit (tablet terminal)
7a liquid crystal monitor (monitor)
11 first work-in-progress production line 12 second work-in-progress production line 31 RFID reader (information reader)
33 RFID tag (information storage device)
35 video camera (imaging device)
37 receiver 39 transmitter 47 output unit 53 delay determination unit 100 hydraulic excavator (finished product)
101 Lower running body (first work in progress)
102 upper revolving body (second work-in-progress)

Claims (7)

A first component of the construction machine is manufactured as a first work-in-progress on a first work-in-progress production line, a second component of the construction machine is manufactured as a second work-in-progress on a second work-in-progress production line, and a completion line A construction machine manufacturing management system for manufacturing the construction machine by combining the first work-in-progress and the second work-in-progress,
a first monitoring unit that monitors the manufacturing status of the first work-in-process product in the first work-in-process production line;
a second monitoring unit that monitors the manufacturing status of the second work-in-progress in the second work-in-progress production line;
a monitor for displaying predetermined information to an administrator;
a control device for controlling the predetermined information to be displayed on the monitor,
The control device is
Determining whether or not there is a delay in the manufacturing process of the first work-in-progress production line based on the manufacturing status of the first work-in-progress monitored by the first monitoring unit, and monitoring by the second monitoring unit a delay determination unit that determines whether or not there is a delay in the manufacturing process of the second work-in-progress production line based on the production status of the second work-in-progress that has been determined;
For the monitor, a graph showing the manufacturing status of the first work-in-process product and the second work-in-process product in the first work-in-process production line and the second work-in-progress production line; information indicating that the manufacturing process of the work-in-progress production line, which is determined to be delayed in the manufacturing process by the delay determination unit among the two work-in-progress production lines, is delayed; and an output unit that outputs data for displaying the construction machine manufacturing management system. The control device has a plan input unit for inputting manufacturing plans for the first work-in-progress production line and the second work-in-progress production line,
The delay determination unit compares the manufacturing plan input to the plan input unit with the manufacturing status of the first work-in-progress and the second work-in-progress, thereby determine whether there is a delay in the manufacturing process of the product manufacturing line,
The output unit displays information indicating the manufacturing plan input to the plan input unit on the graph, and outputs data for displaying information indicating that the delay has occurred to the monitor.
The construction machine manufacturing management system according to claim 1, characterized by: The output unit outputs to the monitor data for blinking a graph showing the manufacturing status of the work-in-progress production line determined to be delayed by the delay determining unit, among the graphs.
The manufacturing control system for construction machinery according to claim 2, characterized by: The first work-in-progress and the second work-in-progress are provided with an information storage device for storing information specifying the first work-in-progress and the second work-in-progress,
A plurality of the first monitoring unit and the second monitoring unit are arranged on the first work-in-progress production line and the second work-in-progress production line, and the information storage device includes the first monitoring unit and the second monitoring unit. an information reading device for extracting information stored in an information storage passing through the second monitoring unit;
The construction machine manufacturing management system according to claim 1, characterized by: said first monitoring unit and said second monitoring unit comprising an imaging device arranged to capture at least one process in said first work-in-progress production line and said second work-in-progress production line;
The delay determination unit determines a delay in the process of imaging by the imaging device based on the image captured by the imaging device.
The construction machine manufacturing management system according to claim 1, characterized by: At least one of the first work-in-progress and the second work-in-progress is provided with a transmitter for transmitting position information of at least one of the first work-in-progress and the second work-in-progress,
at least one of the first monitoring unit and the second monitoring unit is a receiver that receives position information of at least one of the first work-in-progress and the second work-in-progress transmitted from the transmitter;
The delay determination unit determines the delay based on position information of at least one of the first work-in-progress and the second work-in-progress received by the receiver.
The construction machine manufacturing management system according to claim 1, characterized by: The monitor is included in a portable tablet terminal,
The construction machine manufacturing management system according to claim 1, characterized by:

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