JP2016115915A - Data management device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data management device and method performing correction history management and restoration of work data for use in SMT (Surface Mounting Technology) equipment.SOLUTION: A data management device according to an embodiment of the present invention includes a reception unit for receiving a correction file for a reference work file from an SMT(Surface Mounting Technology) line, and a data correction unit for correcting pertinent work data, out of at least one work data constituting the reference work file so as to correspond to the received correction file, and correcting the reference work file so that a transmission source from which the correction file is transmitted is displayed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a data management apparatus and method, and more particularly to a data management apparatus and method for managing correction history and restoration of work data used in SMT (Surface Mounting Technology) equipment.

  Surface mounting technology (SMT) is a general term for technologies for attaching components that can be directly mounted on the surface of a printed circuit board (PCB) to an electronic circuit.

  Specifically, in the SMT process, a solder paste is printed on a printed circuit board (PCB), and various surface mount components (Surface Mounting Devices, SMD) are mounted on the printed circuit board using a mounter, and then reflow is performed. A technique for bonding between the PCB and the lead of the surface mounting component through an oven.

  Such an SMT line can be said to be a technique for producing a completed PCB by an organic combination of a plurality of equipments, but can include at least one or more SMT lines including a plurality of equipments depending on the work environment.

  Usually, in the SMT line, a user generates work data by OLP which is an offline program. OLP, an operational solution program, is CAD-based integrated programming software for the operation of the applicant's SMT line.

  FIG. 1 is a flowchart showing generation of CAD data for generating conventional work data.

  Referring to FIG. 1, in order to correct CAD data and generate work data, a CAD program is executed (S10), a data file is opened and a CAD file is generated (S20), and desired data (for example, an angle of a part) After adding / correcting the value etc. (S30), the data is saved (S40).

  Thus, the correction of the data included in the work data can be corrected by an off-line program, and can also be performed by an SMT-equipped program for mounting surface mount components.

  In other words, the work data can be corrected by a plurality of equipments, so that one work data generated first exists as a plurality of correction data having different data.

  In such correction data, it is difficult to confirm the corrected portion, and a problem may occur in the operation using the SMT equipment.

  Therefore, there is a demand for an invention that can easily check the correction history of work data.

  An object of the present invention is to perform correction history management and restoration of work data used in SMT (Surface Mounting Technology) equipment.

  The objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

  In order to achieve the above object, a data management apparatus according to an embodiment of the present invention receives a correction file for a reference work file from an SMT (Surface Mounting Technology) line, and corresponds to the received correction file. Includes a data correction unit that corrects the corresponding work data among at least one work data constituting the reference work file and corrects the reference work file so that a transmission source that has transmitted the correction file is displayed. It is characterized by that.

  A data management method according to an embodiment of the present invention includes a step of receiving a correction file for a reference work file from an SMT (Surface Mounting Technology) line, and at least configuring the reference work file to correspond to the received correction file. The method includes correcting the corresponding work data in one work data and correcting the reference work file so that the transmission source that has transmitted the correction file is displayed.

  Specific contents of other embodiments are included in the detailed description and drawings.

  According to the data management apparatus and method of the present invention, the correction history management and restoration of work data used in the SMT (Surface Mounting Technology) equipment is performed, so that the user can more easily check the revision history of the work data. The advantage is that it can be restored.

It is a flowchart which shows the production | generation of the CAD data for producing | generating the conventional work data. 1 is a diagram illustrating a data management system according to an embodiment of the present invention. It is a block diagram which shows the data management apparatus by embodiment of this invention. It is a figure which shows the detailed structure of the data management part by embodiment of this invention. FIG. 3 is a diagram illustrating a work interface according to an embodiment of the present invention. It is a figure which shows the work table by embodiment of this invention. FIG. 4 is a diagram illustrating a first modification information interface according to an embodiment of the present invention. FIG. 4 is a diagram illustrating a first modification information interface according to an embodiment of the present invention. FIG. 4 is a diagram illustrating a first modification information interface according to an embodiment of the present invention. It is a figure showing restoration of work data by an embodiment of the present invention. It is a figure which shows the 2nd correction information interface by embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be realized in various forms different from each other. The present embodiments merely complete the disclosure of the present invention, and It is provided to fully inform those skilled in the art of the scope of the invention and is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

  Unless otherwise defined, all terms used herein (including technical and scientific terms) are used in a sense that is commonly understood by those of ordinary skill in the art to which this invention belongs. The Also, terms defined in commonly used dictionaries are not ideally or excessively interpreted unless specifically defined and clarified.

  FIG. 2 is a diagram illustrating a data management system according to an embodiment of the present invention. The data management system 200 includes a work file generation device 210, a management server 220, a work file distribution device 230, and SMT (Surface Mounting Technology) equipment (241, 242, 243, 244).

  The work file generation device 210 plays a role of generating a work file used in the SMT equipment (241, 242, 243, 244) of the SMT line.

  The SMT process includes mounting various surface mounting components (Surface Mounting Devices, SMD) on a printed circuit board (PCB) using a mounter equipment. In the present invention, the work file is a surface mounting component. It can be understood that mounting sequence data such as CAD data or BOM (Bill Of Material) data necessary for mounting is included.

  For example, the work file includes a part reference, an X value, a Y value, a Z value, an R value, a part name, a feeder, a nozzle, a header number, skip information, and a priority level. Such work data may be included.

  An offline program (Off-Line Program, OLP) can be used in the generation of a work file by the work file generation apparatus 210, but the present invention is not limited to this.

  The management server 220 plays a role of storing and distributing the work file generated by the work file generating apparatus 210.

  FIG. 2 shows one work file generation apparatus 210 and one work file distribution apparatus 230, but work files generated by a plurality of work file generation apparatuses 210 are managed and stored by the management server 220. A file may be provided to multiple work file distribution devices.

  Alternatively, a work file can be managed by a plurality of management servers, and an appropriate work file can be supplied to the work file distribution device 230.

  The work file distribution device 230 plays a role of transmitting the work file provided from the management server 220 to each SMT equipment (241, 242, 243, 244).

  In distributing the work file, the work file distribution device 230 can distribute the same work file to all the SMT devices (241, 242, 243, 244), and can selectively distribute the work file. For example, the work file 1 (not shown) provided from the management server 220 is distributed to the SMT equipment 1 (241) and the SMT equipment 3 (243), and the work file 2 provided from the management server 220 (not shown). Can be distributed to SMT equipment 2 (242) and work files can not be distributed to SMT equipment 4 (244).

  The SMT equipment (241, 242, 243, 244) uses the work file received from the work file distribution device 230 to perform the SMT process work. In the present invention, the SMT equipment (241, 242, 243, 244) can uniformly perform the SMT process work by receiving the same work file at the same time, and receive different work files at different time points or different from each other. Thus, individual SMT process operations can also be performed.

  On the other hand, the work file is modified by each device. For example, the user modifies the work file generated using the work file generation device 210, modifies the work file using the management server 220, or modifies the work file using the work file distribution device 230. Or the work file can be modified using the SMT equipment (241, 242, 243, 244).

  Each device (210, 220, 230, 241 to 244) may include one or more programs that can modify the work file. Hereinafter, each device or each program that modifies the work file is referred to as a correction subject.

  As described above, when a work file is modified by a plurality of modification subjects, there are different modification files for the work file generated first, but in order to prevent such confusion, the data according to the embodiment of the present invention is used. The management system 200 may include a separate data management device 300 that manages the modified work file.

  When the correction file is transmitted by the specific correction subject, this is transmitted to the data management apparatus 300. However, the data management apparatus 300 can correct the work file according to the received correction file, and a user restore command It is possible to restore the work file modified according to the original. Therefore, the modified or restored work file is transmitted to the management server 220, so that there is only one reference work file that reflects the correction items accumulated with respect to the work file generated by the work file generating apparatus 210 after all. Become.

  In the present invention, the data management apparatus 300 may be configured to be included in one of the work file generation apparatus 210, the management server 220, the work file distribution apparatus 230, and the SMT equipment (241, 242, 243, 244). It can also be realized as a device.

  FIG. 3 is a block diagram illustrating a data management apparatus according to an embodiment of the present invention. The data management apparatus 300 includes a reception unit 310, a storage unit 320, a control unit 330, a data management unit 340, and an interface generation unit 350.

  The receiving unit 310 plays a role of receiving a correction file for the reference work file from the SMT line. In the present invention, the correction file means a file containing information for correcting the work data constituting the reference work file.

  One corresponding work data can be corrected by receiving one correction file, or a plurality of corresponding work data can be corrected. In the following, a case where one work data is corrected by one correction file will be mainly described.

  The receiving unit 310 plays a role of receiving a reference work file restoration command. In the present invention, the restoration command for the reference work file means an instruction for restoring the modified work data out of the work data constituting the reference work file to the original value or the previously modified specific value.

  One corresponding work data can be restored by receiving one restoration command, or a plurality of corresponding work data can be restored. In the following, the description will be focused on the case where one work data is restored by one restoration command.

  The modified file or the restoration command for the reference work file may be directly input through the data management device 300 or received from another device, but the receiving unit 310 according to the embodiment of the present invention is directly input the modified file or the restoration command. The input unit 311 and the communication unit 312 that receives from another device may be included.

  The input unit 311 includes a button, a wheel, a jog shuttle, and the like, and receives commands from the user. In addition, when the data management apparatus 300 includes a display unit (not shown) and the display unit provides a touch screen function, the display unit may serve as the input unit 311.

  Here, although the input unit 311 can be a single device, for example, a wireless remote controller can serve as the input unit 311. That is, when a user can input a command using a button and a wheel provided on the wireless remote control, and the inertial sensor is provided on the wireless remote control, the user applies a movement to the wireless remote control and tracks the corresponding movement. It is also possible to input an instruction corresponding to.

  The communication unit 312 can communicate with other devices by a wired or wireless communication method. The communication unit 312 includes an Ethernet (registered trademark) (Ethernet (registered trademark)), a public switched telephone network (PSTN), a mobile communication network, a wireless RAN (Wireless LAN), Bluetooth (Bluetooth (registered trademark)), Wi-Fi (Wireless Fidelity), UMTS (Universal Mobile Telecommunications System), HSDPA (High Speed Downlink Packet Access), WiBro (Wireless, etc.).

  The data management unit 340 plays a role of correcting or restoring the reference work file according to the correction file or the restoration command received through the receiving unit 310. Therefore, the data management unit 340 includes a data correction unit 341 and a data restoration unit 342. FIG. 4 illustrates this.

  The data correction unit 341 corrects corresponding work data among at least one work data constituting the reference work file so as to correspond to the received correction file, and displays the transmission source that transmitted the correction file. It serves to modify the reference work file.

  For example, the user can correct the Y value of the specific component reference from 64.000 to 63.970 using the SMT equipment 1241, but when a correction file containing such information is transmitted, the data correction unit 341 Corrects the Y value of the corresponding part reference from the work data included in the reference work file from 64.000 to 63.970, and confirms that the device that transmitted such a correction file is SMT equipment 1 (241). Modify the reference work file to reflect.

  The apparatus that has transmitted the correction file according to the present invention is converted into a reference work file via the work file generation apparatus 210, SMT equipment (241, 242, 243, 244) that performs surface mounting work on the SMT line, and a network (not shown). It may include at least one of the accessed separate devices.

  Since the correction subject that has transmitted the correction file is displayed, the data correction unit 341 can correct the work data corresponding to the correction file in different hues or forms depending on the device that has transmitted the correction file or the transmission source of the correction file.

  For example, the data correction unit 341 corrects the work data in blue when the work file generation device 210 transmits the correction file, and operates in red when the SMT equipment (241, 242, 243, 244) transmits the correction file. Data can be corrected, and when there are a plurality of SMT devices (241, 242, 243, 244), the work data can be corrected to different hues for each SMT device.

  In addition, the reference work file can be realized in the form of a table composed of a plurality of cells, but the data correction unit 341 clearly indicates the work data corrected to the hue corresponding to the device or transmission source that transmitted the correction file. Cells can also be displayed.

  The data restoration unit 342 plays a role of restoring the modified work data. A restoration command is received via the receiving unit 310, but the data restoration unit 342 restores work data in response to the restoration command.

  According to the present invention, the work data can be corrected once or several times, and the data restoration unit 342 can restore the modified work data to the original state or restore the previously corrected specific value. . Here, the restoration to the original means restoration to the work data at the time point generated by the work file generation device 210.

  Referring to FIG. 3 again, the interface generation unit 350 plays a role of generating a correction information interface in which information corrected according to the correction file is reflected.

  The correction information interface includes a first correction information interface including correction data for each item of the specific part reference, and a second correction information interface including a correction history for the specific item of the specific part reference.

  The interface generation unit 350 according to the embodiment of the present invention generates a first correction information interface for each part reference specified in the corrected reference work file, or a second correction for each part reference item specified in the reference work file. An information interface can be generated.

  The first modification information interface includes a modification subject that has transmitted the modification file, items, work data before modification, current work data, and a restore command input icon. Here, the items may include an X value, a Y value, a Z value, an R value, a part name, a feeder, a nozzle, a header number, skip information, and a priority level.

  The second modification information interface includes a modification subject that has transmitted the modification file, modified work data, and a restore command input icon.

  Detailed description regarding the first correction information interface and the second correction information interface will be described later with reference to FIGS. 7 to 9 and FIG. 11.

  Further, the interface generation unit 350 can generate a work interface that allows the user to check the work data and correct the work data. A detailed description of the work interface will be described later with reference to FIG.

  The storage unit 320 serves to store the reference work file or the corrected reference work file. In addition, the storage unit 320 can store the received correction file or the correction history of each work data according to the restoration command, but the data restoration unit 342 refers to the correction history stored in the storage unit 320 and restores the work data to the original. It can be restored or restored to a specific value.

  The control unit 330 performs general control on the reception unit 310, the storage unit 320, the data management unit 340, and the interface generation unit 350.

  Although not shown in FIG. 3, the data management apparatus 300 according to the embodiment of the present invention may include a display unit (not shown) that displays various interfaces generated by the interface generation unit 350. If the device 300 does not include a display unit, the interface can be displayed by display means such as a monitor.

  FIG. 5 is a diagram illustrating a work interface according to an embodiment of the present invention. In the present invention, the work interface 500 refers to a graphic user interface (GUI) for enabling a user to check work data and correcting or restoring specific work data.

  The work interface 500 includes a component layout diagram 510 and a work table 520. The component arrangement diagram 510 displays various components arranged based on work data constituting the work file. Since the part arrangement diagram 510 shows the parts at a ratio corresponding to the actual part size and the interval between the parts, the user can confirm the part to be corrected or restored by the user.

  The work table 520 displays work data constituting the work file. The part arrangement drawing 510 and the work table 520 operate in conjunction with each other. For example, when a specific part in the part arrangement drawing 510 is selected, a corresponding area of the work table 520 corresponding to the corresponding part can be highlighted. When the specific work data 520 is selected, the corresponding part can be highlighted on the part layout diagram 510.

  As described above, the work data displayed in the work table 520 relates to the parts displayed in the part layout diagram 510, but the work interface 500 of the present invention is not limited to this.

  FIG. 6 is a diagram showing a work table according to the embodiment of the present invention. It is a figure which shows the work table 600 displayed so that the work data corrected by the user may differ compared with other work data.

  As shown in the drawing, the R item of the component reference CN501_UBA, the R item of the component reference CN405, the Y item of the component reference IC8, and the X and Y items of the component reference IC601 are displayed in bold compared to other work data. This allows the user to confirm which work data has been modified.

  In particular, the hue of the work data modified corresponding to the modification subject that modified the work data may be different. For example, the work data modified by the work file generation device 210 is displayed in blue, and the SMT equipment (241, The work data corrected by 242, 243, 244) is displayed in red.

  7 to 9 are views illustrating a first modification information interface according to an embodiment of the present invention.

  The first correction information interface (700, 800, 900) is an interface for displaying the correction status of the specific work data. For example, when corrected work data is selected from the work data in the work table, the correction status of the corresponding work data is selected. The first correction information interface (700, 800, 900) indicating the above is displayed on the screen.

  The first correction information interface (700, 800, 900) is displayed in a window (for example, a pop-up window) separate from the work table, but is not limited thereto.

  As described above, the first correction information interface (700, 800, 900) is an interface including correction data for each item of the specific part reference. The correction subject field (710, 810, 910), the item field (720, 820, 920), a previous data field (730, 830, 930), a current data field (740, 840, 940) and a restoration field (750, 850, 950).

  The correction subject field (710, 810, 910) displays the correction subject that has transmitted the correction file, the item field (720, 820, 920) displays the item to be corrected, and the previous data field (730, 830). , 930) displays the transfer work data of the corresponding item, the current data field (740, 840, 940) displays the work data corrected for the corresponding item, and the restoration field (750, 850, 950). Is displayed with restore command input icons (751, 851, 951, 952, 953, 954).

  In addition, corresponding component references (760, 860, 960) are displayed on the first correction information interface (700, 800, 900).

  Eventually, through the first correction information interface 700 shown in FIG. 7, the user corrects the work data of the Y item of the component reference IC 8 by the MMI of the program of the SMT equipment (241, 242, 243, 244), and the value is 64. It can be confirmed that the correction was made from .000 to 63.970.

  Further, the first correction information interface 800 shown in FIG. 8 allows the user to correct the work data of the R item of the part reference CN 405 by the OLP of the program of the work file generation device 210, and to correct the value from 90.000 to 0.000. It can be confirmed.

  The first modification information interface (700, 800, 900) includes a restore command input icon (751, 851, 951 to 954), which allows the user to restore work data.

  That is, when the user selects the restoration command input icon 751 using the first modification information interface 700 of FIG. 7, the work data of the corresponding item is restored from 63.970 to 64.000, and the first modification information interface 800 of FIG. When the user selects the restoration command input icon 851, the work data of the corresponding item is restored from 0.000 to 90.000.

  The work data is restored by the data restoration unit 342. When the restoration command input icon (751, 851, 951 to 954) is selected by the first correction information interface (700, 800, 900), the data restoration unit 342 is selected. Restores the current work data to the work data before correction.

  FIG. 10 shows that the work data of the corresponding item is restored from 63.970 to 64.000 by the first correction information interface 700 of FIG. When the restore command input icon 751 is selected, the work data is restored as shown in FIG. 10, and the first correction information interface (700, 800, 900) disappears from the screen.

  When the work data is restored, the corresponding restoration information is reflected in the work table and the first modification information interface (700, 800, 900).

  7 and 8 show the first correction information interface (700, 800) in which the work data for one item is displayed. As shown in FIG. 9, the work data for a plurality of items is the first correction information. It may be displayed on the interface 900.

  FIG. 9 is a diagram illustrating a first correction information interface including the correction status of work data for a plurality of items.

  The first correction information interface 900 shown in FIG. 9 allows the user to check the correction status of the work data for each item, and to restore for each item.

  FIG. 11 is a diagram illustrating a second modification information interface according to an embodiment of the present invention.

  The second correction information interface 1100 is an interface for displaying a correction history for a specific item of the specific component reference. For example, when corrected work data is selected from the work data in the work table, the second correction information interface 1100 displays the correction history of the corresponding work data. The specified second modification information interface 1100 is displayed on the screen.

  The second modification information interface 1100 is displayed in a window (for example, a pop-up window) different from the work table, but is not limited thereto.

  As described above, the second correction information interface 1100 includes the correction subject field 1110, the correction date / time field 1120, the data field 1130, and the restoration field 1140 as an interface including the correction history for the specific item of the specific component reference.

  The correction subject field 1110 displays the correction subject that has transmitted the correction file, the correction date and time field 1120 displays the date and time when the work data was corrected, the data field 1130 displays the correction history of the work data, In the restore field 1140, restore command input icons (1141, 1142, 1143, 1144, 1145, 1146) are displayed.

  In addition, in the second modification information interface 1100, a corresponding part reference 1160 and an item 1150 are displayed.

  Eventually, the second modification information interface 1100 shown in FIG. 11 allows the user to modify the work data of the X item of the component reference CN 2102 by the program of the work file generation device 210 and the program of the SMT equipment (241, 242, 243, 244). It can be confirmed that the value was corrected in the order of 4.689 → 4.480 → 4.520 → 4.779 → 4.689 → 4.500.

  Here, although 4.500 in the last line deserves the current work data, the user can restore the work data to the selected value by selecting one of the correction histories.

  The work data is restored by the data restoration unit 342. When the restoration command input icon (1141 to 1146) is selected by the second modification information interface 1100, the data restoration unit 342 is a work in which the current work data is modified. Of the data, the work data corresponding to the restore command input icons (1141 to 1146) is restored.

  For example, when the user selects the second restoration command history icon 1142, the data restoration unit 342 restores the work data from 4.500 to 4.480.

  When the work data is restored, the corresponding restoration history is reflected in the work table and the second modification information interface 1100.

  The embodiments of the present invention have been described above with reference to the accompanying drawings. However, persons having ordinary knowledge in the technical field to which the present invention pertains may be used without departing from the technical idea and essential features of the present invention. It can be understood that the present invention can be implemented in a specific form. Therefore, it should be understood that the above embodiment is illustrative in all aspects and not restrictive.

310 reception unit 320 storage unit 330 control unit 340 data management unit 350 interface generation unit

Claims (18)

In a data management apparatus in which a reference work file including work data used in SMT (Surface Mounting Technology) equipment is stored,
A receiving unit for receiving a modified file for the reference work file from an SMT line;
Correcting the corresponding work data among at least one work data constituting the reference work file so as to correspond to the received correction file, and displaying the source from which the correction file is transmitted is displayed. A data management apparatus comprising a data correction unit for correcting a work file.   The data management device according to claim 1, wherein the data correction unit corrects work data corresponding to the correction file to a hue or a form different from each other according to a device that has transmitted the correction file or a transmission source of the correction file.   2. The data management according to claim 1, further comprising an interface generation unit configured to generate a correction information interface including a correction subject that has transmitted the correction file, items, work data before correction, current work data, and a restore command input icon. apparatus.   The data management apparatus according to claim 3, further comprising a data restoration unit that restores current work data to work data before correction when the restoration command input icon is selected by the modification information interface.   The data management apparatus according to claim 3, wherein the interface generation unit generates the correction information interface for each part reference specified in the corrected reference work file.   The data management apparatus according to claim 1, further comprising an interface generation unit configured to generate a correction information interface including the correction subject that has transmitted the correction file, the corrected work data, and a restoration command input icon.   And a data restoration unit for restoring current work data to work data corresponding to the restoration command input icon among the modified work data when the restoration command input icon is selected by the modification information interface. 6. The data management device according to 6.   The data management apparatus according to claim 6, wherein the interface generation unit generates the correction information interface for each part reference item specified in the corrected reference work file.   The device that has transmitted the correction file includes at least one of a device that generates the reference work file, a device that performs surface mounting work on the SMT line, and a separate device that accesses the reference work file via a network. The data management apparatus according to claim 1. In a method for managing a reference work file including work data used in SMT (Surface Mounting Technology) equipment,
Receiving a modified file for the reference work file from an SMT line;
Correcting the corresponding work data among at least one work data constituting the reference work file so as to correspond to the received correction file, and displaying the source from which the correction file is transmitted is displayed. A data management method comprising a step of modifying a work file.   The method of claim 10, wherein modifying the reference work file comprises modifying work data corresponding to the modified file to a different hue or form depending on a device that has transmitted the modified file or a transmission source of the modified file. Data management method.   11. The data management method according to claim 10, further comprising the step of generating a correction information interface including a correction subject, an item, work data before correction, current work data, and a restoration command input icon that transmitted the correction file.   13. The data management method according to claim 12, further comprising: restoring current work data to work data before correction when the restoration command input icon is selected by the correction information interface.   13. The data management method according to claim 12, wherein the step of generating the correction information interface includes the step of generating the correction information interface for each part reference specified in the corrected reference work file.   11. The data management method according to claim 10, further comprising the step of generating a correction information interface including the correction subject that has transmitted the correction file, the corrected work data, and a restoration command input icon.   16. The method of claim 15, further comprising: restoring current work data to work data corresponding to the restore command input icon among the modified work data when the restoration command input icon is selected by the modification information interface. The data management method described.   16. The data management method according to claim 15, wherein the step of generating the correction information interface includes the step of generating the correction information interface for each part reference item specified in the corrected reference work file.   The device that has transmitted the correction file includes at least one of a device that generates the reference work file, a device that performs surface mounting work on the SMT line, and a separate device that accesses the reference work file via a network. The data management method according to claim 10.