JP7137662B2 - Operation information monitoring system for circuit board production lines - Google Patents

Description

The present specification relates to a system for monitoring operation information of board production lines provided at a plurality of production bases.

Board production machines that produce boards on which a large number of components are mounted include solder printers, electronic component mounting machines, reflow machines, board inspection machines, and the like. It is common to connect these board production machines to form a board production line. A production base such as a board production factory is often provided with a plurality of board production lines. In this case, operation information representing the operation status of a plurality of board production lines is acquired, the operation information is aggregated, output, and presented to the production manager. Patent Documents 1 and 2 disclose technical examples related to this type of monitoring of operation information.

The monitoring device of Patent Document 1 includes an operation result acquisition unit that acquires time-series data of indices representing the operation results of a monitoring target, and a plurality of index values at the same point in time to generate time-series data of a comprehensive index. It has a total index generation unit and a change point detection unit that detects a change point of the total index. According to this, since the point of change is detected using the comprehensive index, it is possible to appropriately detect changes in the state of the monitored object that are difficult to evaluate using only individual indices. Note that the monitoring target may be the production line or the entire factory.

Further, the semiconductor product production system of Patent Document 2 has a production form in which a semi-finished product that has undergone some processes at a first factory is shipped to a second factory, and the rest of the processes are executed at the second factory. Targeted. Then, production control information and inspection result information obtained from the characteristic inspection process carried out at the second factory are transmitted to the first factory via a communication line, and based on this information, the production of the assembly process at the first factory is performed. Conditions are changed. According to this, it is possible to constantly change the production conditions of the assembly process based on production control information and inspection result information to produce semiconductor products having desired characteristics. Furthermore, the embodiment discloses that information collected at a plurality of second factories is sent from each of the send/receive servers to the send/receive server at the first factory.

JP 2015-152933 A JP-A-2003-92239

By the way, in the industrial field of printed circuit board production, global development is progressing by distributing production bases in multiple countries. Manufacturers with multiple production bases need a global perspective to grasp operation information of all circuit board production lines at all production bases. On the other hand, the technique of Patent Literature 1 is characterized by a method of processing operation information, but it does not correspond to a plurality of production bases. Further, the technique of Patent Document 2 is to transmit information from a specific production base to another production base. Therefore, the techniques of Patent Literatures 1 and 2 do not meet the needs of global viewpoints.

In addition, it is not sufficient to simply summarize and present the operation information of all circuit board production lines. In other words, it is difficult for the production manager to make decisions regarding the management of the board production line based only on the aggregated results. For example, if operation information is not compared between production bases, or if multiple production bases are divided into multiple areas and operation information is not compared between areas, the production manager cannot determine the operation status. difficult to assess. Also, it is difficult for production managers to determine appropriate actions to improve operating conditions. Furthermore, there is a time limit for collection processing, tabulation processing, and processing of operation information, and it is difficult to quickly grasp information. In addition, operation information can be grasped only at limited points.

An object of the present specification is to provide a board production line operation information monitoring system that can collectively monitor the operation information of board production lines at a plurality of production bases and is suitable for board production line management. .

This specification includes a plurality of base totaling units provided at each of a plurality of production bases, and for generating base information by aggregating operation information of board production lines arranged at the production bases; a plurality of information transmission units provided correspondingly for transmitting the location information created by the location aggregation unit; and an overall aggregation unit provided in the cloud server for creating overall information by aggregating the operation information of the board production lines of the production bases, and dividing all of the production bases into a plurality of areas, dividing the base information and an area tallying unit that obtains area information by tallying the operation information of the board production line in the area based on at least one of the overall information, wherein the plurality of areas includes a plurality of upper areas and at least and a plurality of lower-layer areas obtained by dividing one upper-layer area. Disclosed is an operation information monitoring system for a substrate production line, which obtains a plurality of area information for a plurality of lower layer areas obtained by dividing the first upper layer area when an area is specified.

According to the circuit board production line operation information monitoring system disclosed in this specification, the operation of all circuit board production lines at all production bases is controlled by the base totalization unit and information transmission unit provided for each production base, and the overall totalization unit. Since the information is aggregated, collective monitoring becomes possible. Furthermore, since the area tallying unit obtains a plurality of area information according to the hierarchy of the area, it is suitable for management of the board production line. In addition, since the overall totalizing unit and the area totalizing unit are provided in the cloud server, the initial cost and running cost are low, and a monitoring system with excellent security performance can be constructed.

1 is a configuration diagram of an operation information monitoring system for a substrate production line according to an embodiment; FIG. It is a figure which illustrates and demonstrates the hierarchical structure of an area. It is a figure of the flowchart explaining the operation|movement flow of the base total part of a production base. FIG. 10 is a flowchart for explaining an operation flow up to obtaining an index related to operation information on the cloud server side; FIG. 10 is a flowchart for explaining the operation flow of an area totalization unit that outputs indices and the like; It is a figure showing a home screen. It is a figure showing the whole screen. FIG. 10 is a diagram showing an entire split screen that is a lower layer of the entire screen; FIG. 11 is a diagram showing an area division screen that is a lower layer of the overall division screen; FIG. 11 is a diagram showing a site division screen that is a lower layer of the area division screen. It is a figure showing the screen classified by line of the lower layer of the site division screen. FIG. 10 is a diagram showing a line operating rate screen displaying operating information for each line; FIG. 10 is a diagram showing a line error rate screen displaying operation information for each line; FIG. 11 is a diagram showing a record list screen displaying a history of trouble events; FIG. 10 is a diagram showing a dashboard screen displaying actions that can be executed by remote instruction; FIG. 10 is a diagram showing a schedule list screen displaying a production schedule of a board production line;

(1. Configuration of monitoring system 1 of embodiment)
An operation information monitoring system 1 for a substrate production line according to an embodiment will be described with reference to FIGS. 1 to 16. FIG. FIG. 1 is a configuration diagram of an operation information monitoring system 1 (hereinafter abbreviated as monitoring system 1) for a substrate production line according to an embodiment. The arrows in the figure indicate the transmission direction of information and data, the direction of access, and the like. The monitoring system 1 monitors substrate production lines at a plurality of production bases.

A plurality of production bases may be distributed in a plurality of countries, or may be distributed in a plurality of regions within Japan. The monitoring system 1 includes a plurality of site totalizing units 2, a plurality of information transmitting units 3, a total totalizing unit 4, an area totalizing unit 5, and the like provided corresponding to each production base. FIG. 1 illustrates the configuration of a certain production base 9 . The other production sites 9A and 9B have the same configuration as the production site 9, although there are differences in the number of substrate production lines and the types of substrates to be produced.

The production base 9 is provided with three substrate production lines (911, 912, 913). Three line servers (931, 932, 933) are provided to monitor the operation status of each substrate production line (911, 912, 913). The line servers (931, 932, 933) are composed of, for example, computer devices for supervisory control. The board production lines (911, 912, 913) and the line servers (931, 932, 933) are connected for communication using the local LAN92. The three line servers (931, 932, 933) have a function of exchanging information among themselves.

Each line server (931, 932, 933) accumulates operation information obtained by monitoring each substrate production line (911, 912, 913) in respective databases (941, 942, 943). Examples of operation information include the Overall Equipment Efficiency (abbreviated as OEE hereinafter), the number of substrates produced, and the state of individual substrate production machines that make up the line. The operation information is not limited to these, and may be line operation rate, error rate, or the like.

The site counting unit 2 is configured by, for example, a computer device. The site counting unit 2 collects the latest operation information from the three databases (941, 942, 943) each time a certain information collection time elapses. As an information collection time, 3 minutes can be exemplified and is not limited to this. Further, each time a certain information totaling time elapses, the site totaling unit 2 totals the operating information to create the site information. The information collection time is set, for example, by selecting one of three conditions, 1 hour, 12 hours, and 24 hours. The information aggregation time is not limited to this, and two of the three conditions or all three conditions may be set.

The information collection time and the information totalization time correspond to the totalization conditions when the base totalizer 2 performs totalization. The aggregation conditions of the site aggregation unit 2 can be changed by instructions from the aggregation condition instruction unit 41, which will be described later. For example, if the information aggregation time is set to be one of three conditions, the aggregation condition instruction unit 41 needs to instruct to change the information aggregation time. At this time, the aggregation processing amount of the base aggregation unit 2 can be small. Further, when the information totalization time is set for all three conditions, the totalization condition instruction unit 41 does not need to instruct to change the information totalization time. At this time, the aggregation processing amount of the base aggregation unit 2 increases.

To give an example of the counting method, the site counting unit 2 obtains the average OEE of the three board production lines (911, 912, and 913) and uses it as the average OEE of the production site 9. FIG. In addition, the site counting unit 2 adds the number of boards produced by the three board production lines (911, 912, and 913) to obtain the total number of boards produced by the production site 9. FIG. In addition, the site totalization unit 2 compiles real-time status data 21 representing a list of current states of individual board production machines constituting the three board production lines (911, 912, 913).

The site counting unit 2 puts together the average OEE and the total production number of the production sites 9 into the site information data 22 and sends it to the information transmission unit 3 . In addition, the site counting section 2 sends real-time status data 21 to the information transmission section 3 . The site totaling unit 2 can access the production database 23 . In the production database 23, a production schedule for substrates is set. The site totalization unit 2 sends schedule data 24, which is a data representation of the production schedule, to the information transmission unit 3. FIG. Real-time status data 21 , base information data 22 , and schedule data 24 are base information of production base 9 . In addition, the site totaling unit 2 also has a function of managing the line servers (931, 932, 933) based on the production schedule.

The information transmission unit 3 is provided corresponding to a plurality of production bases. The information transmission unit 3 transmits the site information compiled by the site collection unit 2 to the transmission/reception hard disk 63, which will be described later. The information transmission unit 3 operates each time the base information is updated. Therefore, the transmission time interval of the information transmission unit 3 substantially matches the information totalization time of the site totalization unit 2 . Two-way data transmission is possible between the information transmission unit 3 and the transmission/reception hard disk 63 . As a transmission method, a wireless communication method using a VPN connection (Virtual Private Network connection) with excellent security performance can be exemplified, but not limited to this.

The overall tallying unit 4 and the area tallying unit 5 are implemented using the CPU of the application providing unit 62 of the cloud server 61 . The application providing unit 62 also includes a transmission/reception hard disk 63 , an operation information database 64 , a setting information database 65 , an output gateway 66 and an output data editing unit 67 .

The transmission/reception hard disk 63 stores the location information transmitted from the information transmission section 3 . Every time the location information is stored in the transmission/reception hard disk 63, the overall counting unit 4 reads the location information. Therefore, the time interval at which the totalizing unit 4 reads the base information substantially matches the information totalizing time of the base totalizing unit 2 . The overall totalizing unit 4 totalizes the site information received from each of the plurality of information transmitting units 3, and creates overall information by totalizing the operation information of all the board production lines of all the production sites.

The frequency with which the overall totalizing unit 4 creates the overall information may or may not match the time interval at which the base information is read. This frequency is a fixed value or a variable set value set by the production manager. For example, when base information is updated, transmitted, and read every hour, the overall totalizing unit 4 may create the overall information every hour, or generate the overall information every 12 hours or every 24 hours. may be created. The overall totalizing unit 4 saves the overall information and base information of all production bases in the operation information database 64 .

As an example of the counting method, the overall counting unit 4 obtains the weighted average value of the base OEE of all the production bases, and sets it as the overall average OEE. Further, the total counting unit 4 adds the total number of productions of all the production bases to obtain the total number of productions. Also, the overall totalizing unit 4 aggregates the real-time status data 21 of all the production bases to obtain an overall status. Furthermore, the overall totalizing unit 4 aggregates the schedule data 24 of all the production bases to form an overall schedule. The overall average OEE, the overall total production quantity, the overall status, and the overall schedule correspond to the overall information.

The operating information database 64 is configured by a storage device having a large storage capacity. Therefore, the operation information database 64 can store overall information and base information of all production bases over a long period of time. On the other hand, the storage capacity of the transmission/reception hard disk 63 is limited. Therefore, the transmitting/receiving hard disk 63 sequentially erases the base information read by the totalizing unit 4 .

The overall tallying unit 4 includes a tallying condition instruction unit 41 . The aggregation condition instruction unit 41 instructs aggregation conditions when the base aggregation unit 2 performs aggregation. Aggregation conditions include the aforementioned information collection time and information aggregation time, the type of operating information, and the like. Aggregation conditions can be changed by the production manager's setting operation. The aggregation condition instruction unit 41 stores the currently set aggregation conditions and the change history of the aggregation conditions in the setting information database 65 . When the aggregation condition is changed, the aggregation condition instruction unit 41 sends information on the new aggregation condition to the transmission/reception hard disk 63 . Information on the new tabulation conditions is transmitted in the opposite direction to the base information, and is sent to the information transmission unit 3 of the production base 9 .

The information transmission unit 3 stores the new tabulation conditions in the production database 23 . The site tallying unit 2 accesses the production database 23 to grasp the new tallying conditions, and thereafter creates the site information according to the new tallying conditions. In addition, the site tallying unit 2 instructs the line servers (931, 932, 933) about new tallying conditions as necessary.

The area tallying unit 5 divides all the production bases into a plurality of areas, obtains and outputs an index related to operation information for each area. In this embodiment, areas have a hierarchical structure. FIG. 2 is a diagram illustrating an example of a hierarchical structure of areas. A first layer area A1 on the top layer is defined by dividing all the production bases. In the example of FIG. 2, there are three first layer areas A1: Asia area, North and South America area, and Europe area.

The second layer area A2 is defined by dividing the first layer area A1. For example, the second layer areas A2 into which the Asia area is divided are three areas, China area, South Korea area, and Japan area. Similarly, the Americas area and Europe area are also divided into multiple second tier areas A2. Also, the third layer area A3 into which the Japan area is divided is three areas, the Fujioka area, the Chiryu area, and the Okazaki area. Further, the fourth layer area A4 into which the Okazaki area is divided is three substrate production lines, namely line 1, line 2 and line 3. The fourth layer area A4 is the lowest layer area. It should be noted that part of the upper layer area on the higher layer side may not be divided and become the lower layer area on the lower layer side as it is.

The area tallying unit 5 is capable of drill-down processing in which a layer of an area for which a plurality of indices are to be obtained is moved to a lower layer side according to designation. In addition, the area tallying unit 5 is also capable of drill-up processing in which the layer of the area for which a plurality of indices are to be calculated is moved to the upper layer side according to the designation.

The area tallying unit 5 processes at least one of the site information and the overall information to obtain an index related to the operation information. Alternatively, the area tallying unit 5 may use the operating information itself included in the base information and the overall information as an index. For example, the area tallying unit 5 obtains a weighted average value of the base OEE of a plurality of production bases included in the target area, and sets it as the area average OEE. The area tallying unit 5 obtains an index in advance and stores it in the operation information database 64 each time the overall tallying unit 4 creates the overall information. After that, the area tallying unit 5 outputs the index in response to an output request from the production manager.

The area tallying unit 5 includes an action output unit 51 . The action output unit 51 outputs actions that can be executed by remote instruction to the board production line. The output contents of the area tallying unit 5 and the action output unit 51 are displayed on a mobile terminal 69 such as a tablet terminal or a smart phone, a personal computer, or the like.

Specifically, the area tallying unit 5 is connected to the output data editing unit 67 via the output gateway 66 . Furthermore, the output data editor 67 is open to the Internet line 68 . Therefore, the production manager can access the monitoring system 1 from an access device such as the mobile terminal 69 or a personal computer and issue an output request. For access, a login process using a pre-registered user name and password is required.

A logged-in production manager (hereafter referred to as a "logged-in user") can request the output of indicators related to operation information. In addition, it is also possible to allow the log-in user to freely select the types of operating information and indices desired by the logged-in user, as well as the aggregation conditions. In this case, the area tallying unit 5 performs individual output for each logged-in user. Furthermore, the area tallying unit 5 may limit the range of indicators that can be confirmed, or limit the types of actions that can be instructed, according to the authority level of the logged-in user.

The output data editing unit 67 sends to the area totalizing unit 5 an output request from the logged-in user, an operation for setting totaling conditions, and an action instruction. Further, the output data editing unit 67 edits a plurality of indexes output by the area totalizing unit 5 to generate graphic screen data that can be easily confirmed by the logged-in user, and outputs the graphic screen data to the access device via the Internet line 68 . The logged-in user can check the indicators related to the operating information by looking at the display of the access device. In particular, with the mobile terminal 69, the logged-in user can check indicators related to operating information anytime and anywhere.

In addition, the action output unit 51 sends the content of the action to the transmission/reception hard disk 63 in response to an action instruction from the logged-in user. As with the new tabulation conditions, the contents of the action are transmitted in the reverse direction and sent to the production database 23 via the information transmission section 3 . The site totaling unit 2 accesses the production database 23 to grasp the content of the action, and instructs the line servers (931, 932, 933). As a result, the instructed action is executed in the board production line (911, 912, 913).

(2. Operation and Action of Monitoring System 1)
Next, the operation and effects of the monitoring system 1 will be described separately for the production site 9 side and the cloud server 61 side. FIG. 3 is a flow chart for explaining the operational flow of the production base totaling section 2 of the production base 9. As shown in FIG. At step S1 in FIG. 3, the base counting unit 2 waits for the information collection time to elapse. At step S2 after the information collection time has elapsed, the site totaling unit 2 collects the latest operation information from the databases (941, 942, 943).

In the next step S3, the site tallying unit 2 checks the elapsed time since the previous tallying process, and returns the execution of the operation flow to step S1 when the information tallying time has not passed. As the loop from step S1 to step S3 is repeated, the information tallying time elapses. Then, the site counting unit 2 advances the execution of the operation flow to step S4, performs the counting process, and creates the site information. In the next step S5, the site counting section 2 sends the site information to the information transmission section 3. FIG. This completes one cycle of creating base information. The site counting unit 2 returns the execution of the operation flow to step S1, and repeats the operations thereafter.

FIG. 4 is a flow chart for explaining the operation flow until the cloud server 61 side obtains an index related to the operation information. At step S11 in FIG. 4, the overall counting unit 4 starts checking the contents stored in the hard disk 63 for transmission/reception. In the next step S12, the overall counting unit 4 investigates whether or not the hard disk 63 for transmission/reception stores the base information. The overall counting unit 4 repeats step S12 while the base information is not stored, and advances the execution of the operation flow to step S13 when the base information is stored.

In step S13, the overall totalizing unit 4 reads out the base information, performs totaling processing, and creates overall information. In the next step S<b>14 , the overall totalizing unit 4 saves the overall information and base information in the operation information database 64 . In the next step S<b>15 , the area tallying unit 5 obtains an index related to operation information for each area, and stores it in the operation information database 64 . This completes one cycle of determining the index. After this, continue to FIG.

FIG. 5 is a flow chart for explaining the operation flow of the area tallying unit 5 that outputs indices and the like. 6 to 16 exemplify screens displayed on the access device according to the output from the area tallying unit 5. FIG. FIG. 6 is a diagram showing the home screen. FIG. 7 is a diagram showing the entire screen. FIG. 8 is a diagram showing the overall divided screen below the overall screen. FIG. 9 is a diagram showing an area split screen in a lower layer of the whole split screen. FIG. 10 is a diagram showing a site division screen that is a lower layer of the area division screen. FIG. 11 is a diagram showing a line-by-line screen below the site division screen. FIG. 12 is a diagram showing a line operating rate screen displaying operating information for each line. FIG. 13 is a diagram showing a line error rate screen displaying operating information for each line. FIG. 14 is a diagram showing a record list screen displaying a history of trouble events. FIG. 15 is a diagram showing a dashboard screen displaying actions executable by remote instruction. FIG. 16 is a diagram showing a schedule list screen displaying the production schedule of the board production line.

At step S21 in FIG. 5, the area tallying unit 5 waits for an output request from the logged-in user. At step S22 when there is an output request, the area tallying unit 5 outputs the home screen information shown in FIG. 6 and displays it on the access device. The date is displayed on the upper right of the home screen (also in FIGS. 7 to 10). Four software switches, namely Global switch 711, Area switch 712, Factory switch 713, and Line switch 714, are displayed near the top of the home screen. A transition switch 716 for transitioning to another application is displayed near the bottom of the home screen.

In the next step S23, the area tallying unit 5 confirms the switches selected and operated by the logged-in user. At step S24 when the Global switch 711 is selected and operated, the area tallying unit 5 outputs the overall information. As a result, the entire screen of FIG. 7 is displayed in step S26. Further, when any one of the Area switch 712, Factory switch 713, and Line switch 714 is selected and operated, the area tallying unit 5 advances execution of the operation flow to step S25.

In step S25, the area tallying unit 5 presents display candidate areas, production bases, substrate production lines, and the like (drawings are omitted), and waits for the log-in user's selection operation. When a selection operation is performed, the area tallying unit 5 outputs indices corresponding to the selected area, production base, and substrate production line. 8, the area division screen of FIG. 9, the location division screen of FIG. 10, and the line-by-line screen of FIG. 11 are displayed in step S26. For example, when the Factory switch 713 is selected on the home screen and then the Japan area is selected, the area counting unit 5 outputs indices corresponding to the three production bases in the Japan area. As a result, the base division screen of FIG. 10 is displayed.

In step S26, various screens are displayed. A logged-in user can freely select and operate software switches on the screen. In step S27, the area tallying unit 5 confirms the selected switch. In step S28 when the drill-down switches (722, 725, 727, 729) are selected and operated, the area tallying unit 5 performs drill-down processing and returns execution of the operation flow to step S26. In step S29 when the drill-up switch 724 is selected and operated, the area tallying unit 5 performs drill-up processing, and returns the operation flow to step S26. As a result, the layer of the area displayed in step S26 moves up and down.

Furthermore, when any one of the transition switches (734, 739), action switch 735, and schedule switch 736 is selected and operated, the area tallying unit 5 advances execution of the operation flow to step S30. In step S30, the area tallying unit 5 outputs information corresponding to the selected switch, and returns execution of the operation flow to step S26 (an embodiment will be described later). Also, when the HOME switch 721 is selected and operated, the area tallying unit 5 returns the execution of the operation flow to step S22.

An example of the output operation of the area tallying unit 5 will be described below with reference to various screens. A HOME switch 721 is displayed on the upper left of the entire screen of FIG. If the logged-in user selects the HOME switch 721, the area tallying unit 5 outputs the information of the home screen and displays it on the access device (hereinafter, abbreviated as "the area tallying unit 5 displays the home screen"). ). An overall average OEE of 85%, which is overall information, is displayed near the top of the overall screen as a numerical value and a ring graph. At the bottom of the overall screen, 95% of the availability index, which is the overall information, 79% of the performance index, and 100% of the quality index are displayed. A drill-down switch 722 is displayed to the right of the circular graph.

When the logged-in user selects and operates the drill-down switch 722, the area tallying unit 5 performs drill-down processing and displays the entire split screen shown in FIG. The overall split screen displays three indices of the first layer area A1. A drill-up switch 724 is displayed to the right of the HOME switch 721 on the entire split screen. If the logged-in user selects and operates the drill-up switch 724, the area tallying unit 5 performs drill-up processing and displays the entire upper layer screen (FIG. 7).

Each area average OEE of the three first layer areas A1 is displayed as a bar graph near the top of the entire split screen. In addition, three area-average OEEs are numerically displayed below the bar graph. In the example of FIG. 8, the area average OEE for the Asia area (Asia) is 72%, the area average OEE for the Americas area (Americas) is 86%, and the area average OEE for the Europe area (Europe) is 90%. . In the present embodiment, the display order is sequentially changed in ascending order of the numerical value of the index (the same applies to FIGS. 9 and 10). The display is not limited to this, and may be displayed in a fixed order of a plurality of areas. A drill-down switch 725 is displayed to the right of each area average OEE value.

When the logged-in user selects and operates the Asia area drill-down switch 725, the area tallying unit 5 performs drill-down processing and displays an area division screen illustrated in FIG. This area division screen displays indicators of three second layer areas A2 in the Asia area. A drill-up switch 724 is displayed to the right of the HOME switch 721 on the area division screen. If the logged-in user selects the drill-up switch 724, the area tallying unit 5 performs the drill-up process and displays the entire upper-layer divided screen (the same applies to FIGS. 10 to 16).

Each area average OEE of the three second layer areas A2 is displayed as a bar graph near the top of the area division screen. In addition, three area-average OEEs are numerically displayed below the bar graph. In the example of FIG. 9, the area average OEE for the China area (China) is 70%, the area average OEE for the South Korea area (Korea) is 72%, and the area average OEE for the Japan area (Japan) is 76%. A drill-down switch 727 is displayed to the right of each area average OEE value.

When the logged-in user selects and operates the Japan area drill-down switch 727, the area tallying unit 5 performs drill-down processing and displays a site division screen illustrated in FIG. This site division screen displays three indices of the third layer area A3 in the Japan area. Each area average OEE of the three third layer areas A3 is displayed in a bar graph near the top of the site division screen. In addition, three area-average OEEs are numerically displayed below the bar graph. In the example of FIG. 10, the area average OEE of the Fujioka area is indicated as 72%, the area average OEE of the Chiryu area is indicated as 77%, and the area average OEE of the Okazaki area is indicated as 78%. A drill down switch 729 is displayed to the right of each area average OEE value.

When the logged-in user selects and operates the drill-down switch 729 for the Okazaki area, the area tallying unit 5 performs drill-down processing and displays the line-by-line screen illustrated in FIG. 11 . This line-by-line screen displays detailed operation information of the three board production lines in the Okazaki area. An all job switch 731 (all Jobs) and a current job switch 732 (Current Jobs) are displayed to the right of the drill-up switch 724 on the screen for each line. The current job switch 732 is a switch that selects only production jobs that are currently being executed, and the all jobs switch 731 is a switch that also includes finished production jobs (the same applies to FIGS. 12 and 13). In FIG. 11, the job switch 732 is currently selected.

FIG. 11 shows all the operation information of the first board production line (Line1) and part of the operation information of the second board production line (Line2). The logged-in user can use the screen scroll function to check the rest of the operation information of the second board production line (Line2) and the operation information of the third board production line (Line3). A transition switch 734 is displayed on the right side of the operation information of the first substrate production line (Line 1), and an action switch 735 and a schedule switch 736 are displayed on the lower side.

In the example of FIG. 11, the first board production line (Line1) is executing a production job with the job name "JobABC_T123". As for the progress status (Progress), 157 sheets have already been produced out of 300 sheets to be produced. The production end time (Due date) is scheduled for 18:30 on February 25th. In addition, the overall equipment efficiency OEE of the first circuit board production line (Line 1) is 75%, the line utilization rate (LU) is 80%, the electronic component placement speed (CPH) is 12,000 per hour, and the placement speed efficiency (ECPH). is displayed as 65%.

When the logged-in user selects and operates the shift switch 734, the area tallying unit 5 displays a line operating rate screen illustrated in FIG. This line operation rate screen displays the time ratio of the operation status of the first substrate production line (Line 1) in a pie chart and numerical values. In the example of FIG. 12, the operating rate (Product) is displayed as 80%, operator downtime (Operator Downtime) as 4%, machine error (Machine Error) as 9%, and others (Other) as 7%. A transition switch 739 is displayed to the right of the pie chart.

When the log-in user selects and operates the shift switch 739, the area tallying unit 5 displays the line error rate screen illustrated in FIG. This line error rate screen displays the occurrence of errors in the first board production line (Line 1). In the upper half of the line error rate screen of FIG. 13, the error rate for each type of electronic component is displayed as a bar graph and numerical values. Specifically, an error rate of 3.0% for parts type A (PartsA), an error rate of 2.8% for parts type B (PartsB), and the like are displayed. Also, the number of errors by error code is displayed in the lower half of the line error rate screen. Specifically, the number of errors of error code 8000D701 is displayed as 52 out of 1000 times.

Also, when the logged-in user selects and operates the action switch 735 on the line-by-line screen of FIG. 11, the area tallying unit 5 displays a record list screen illustrated in FIG. This record list screen displays the history of failure events occurring in the first board production line (Line 1). The configuration of the first board production line (Line 1) is graphically displayed at the top of the record list screen. Then, the first board production machine 741 and the fifth board production machine 742 in which the defect event has occurred are displayed in red for easy viewing.

Further, in the center of the record list screen, trouble events are displayed in chronological order, and in the lower part of the record list screen, recovery codes of trouble event recovery methods (Remedy) are displayed. In the example of FIG. 14, an error stop with an error code of 80000001 occurs at time 12:30, and operation is restarted by a recovery method with a recovery code of 30000001.

When the logged-in user selects the graphically displayed first board production machine 741, the action output unit 51 of the area tallying unit 5 displays a dashboard screen illustrated in FIG. This dashboard screen displays actions that can be executed by remote instruction to the first board production machine 741 . The internal configuration of the first board production machine 741 is graphically displayed on the upper part of the dashboard screen. In the center of the dashboard screen, the current state is displayed, and below it are switches that indicate possible actions.

In the example of FIG. 15, the first board production machine 741 is currently in operation (Product), and 15 minutes and 25 seconds have passed since it resumed operation. As switches, a start switch 743, a stop switch 744, and a cycle stop switch 745 are displayed. Among them, the start switch 743 cannot be operated because the first board production machine 741 is in operation. The action output unit 51 blinks the operable stop switch 744 and cycle stop switch 745 .

When the logged-in user selects and operates the stop switch 744 , the action output unit 51 sends the content of the action of stopping the first board production machine 741 to the transmission/reception hard disk 63 . The content of this action is transmitted from the aggregation section of the Okazaki area to the line server. Then, according to the instruction from the line server, the first board production machine 741 is stopped. If the logged-in user selects and operates the cycle stop switch 745, similar transmission is performed and the first board production machine 741 stops the cycle.

It should be noted that the action output unit 51 operates in the same manner even when the logged-in user selects a board production machine in which no trouble event has occurred. However, the types of switches that instruct executable actions vary depending on the type of board production machine and the operating conditions.

When the log-in user selects and operates the schedule switch 736 on the line-by-line screen of FIG. 11, the area tallying unit 5 displays the schedule list screen illustrated in FIG. This schedule list screen displays the current and future production schedules of the first board production line (Line 1). In the example of FIG. 16, a schedule for parts picking for the first production job (Job1) from 12:30 to 13:20 is displayed. Furthermore, a schedule is displayed in which offline preparation is performed from 13:35 to 14:45 and production is performed from 15:30 to 18:50. Production schedules for subsequent second production job (Job2) and third production job (Job3) are similarly displayed.

Note that if the login user's selection operation is interrupted for a certain period of time or longer, the area tallying unit 5 stops the output operation.

(3. Aspects and Effects of Monitoring System 1)
The monitoring system 1 of the embodiment is provided at each of a plurality of production bases 9, collects operation information of the substrate production lines (911, 912, 913) arranged at the production bases 9, and collects base information (real-time status data 21 , base information data 22, and schedule data 24), and a plurality of information transmission units 3 provided corresponding to the plurality of production bases 9 and transmitting the base information of the base totalization unit 2. and an overall aggregation unit 4 that aggregates the site information received from each of the plurality of information transmission units 3 and creates overall information that aggregates the operation information of all the board production lines of all the production sites, and all the production sites. is divided into a plurality of areas, based on at least one of the base information and the overall information, an area tallying unit 5 obtains an index related to the operation information for each area, and outputs the obtained plurality of indices.

According to this, the operation information of all the board production lines of all the production bases can be totaled by the base totalization unit 2, the information transmission unit 3, and the overall totalization unit 4 provided for each production base 9. . Furthermore, since the area tallying unit 5 outputs an index related to the operation information obtained for each area, it is suitable for management of the board production line.

Also, the overall totalizing unit 4 and the area totalizing unit 5 are implemented using the cloud server 61 . According to this, by making use of the features of the cloud server 61, it is possible to construct the monitoring system 1 with low initial costs and low running costs and excellent security performance.

Furthermore, the area has a hierarchical structure of two or more layers including a plurality of upper layer areas and a plurality of lower layer areas obtained by dividing at least one upper layer area, and the area counting unit 5 obtains an index for each upper layer area. and, when the first upper layer area is specified, a plurality of indices are obtained for a plurality of lower layer areas into which the first upper layer area is divided. According to this, since the index can be confirmed by changing the hierarchy of the area, it is very suitable for the management of the board production line.

Furthermore, the hierarchical structure of the areas is such that any of the production bases 9, the board production lines (911, 912, 913), or the board production machines that are components of the board production lines (911, 912, 913) can be maximized. As a lower layer area, the area tallying unit 5 performs drill-down processing to move the layer of the area for which a plurality of indices is to be obtained to the lower layer side according to the designation, and the layer of the area for which the plurality of indices is to be obtained. Drill-up processing to move to the upper layer side is possible accordingly.

According to this, the operation when changing the layer of the area to be displayed is easy, and the relationship between the upper layer and the lower layer area is easy to understand. In other words, the monitoring system 1 of the embodiment is excellent in operability and visibility. Therefore, for example, when a problem occurs in the overall information, by performing drill-down processing, it is possible to easily and quickly identify the production site or board production line that is the cause.

Furthermore, the area tallying unit 5 includes an action output unit 51 that outputs actions that can be executed by remote instruction to the board production line. According to this, the production manager can confirm the action that can be executed together with the index related to the operation information. Therefore, the production manager can properly and easily decide whether or not to take action.

Furthermore, the index output from the area tallying unit 5 can be confirmed using the mobile terminal 69 . According to this, the production manager can confirm the index related to the operation information anytime and anywhere.

Further, the overall tallying unit 4 includes a tallying condition instruction unit 41 that instructs the tallying conditions when the base tallying unit 2 performs tallying. According to this, since the aggregation conditions of all the production bases are collectively changed at the same time, there is no need to change and set the aggregation conditions individually at each production base. In addition, there is no irrationality that aggregation conditions do not match at multiple production bases.

(4. Applications and Modifications of Embodiments)
It should be noted that the use of the cloud server 61 is not essential, and the overall totalizing unit 4 and the area totalizing unit 5 can also be realized by a general computer device. Further, in the embodiment, the area counting unit 5 obtains the index in advance and outputs the index in response to an output request from the production manager, but there is another method. That is, the area tallying unit 5 may obtain the index after receiving an output request from the production manager. Furthermore, the screens shown in FIGS. 6 to 16 are only examples, and various modifications of the display screens can be used. For example, indicators other than OEE may be displayed by drill-down processing and drill-up processing. Various other applications and modifications are possible for this embodiment.

1: Operation information monitoring system for circuit board production line 2: Location aggregation unit 3: Information transmission unit 4: Total aggregation unit 41: Aggregation condition instruction unit 5: Area aggregation unit 51: Action output unit 61: Cloud server 69: Mobile terminal 9 : Production base 911, 912, 913: Substrate production line A1: First layer area A2: Second layer area A3: Third layer area A4: Fourth layer area

Claims (2)

a plurality of base totaling units provided in each of a plurality of production bases for generating base information by aggregating operation information of board production lines arranged in the production bases;
a plurality of information transmission units provided corresponding to the plurality of production bases and transmitting the base information created by the base aggregation unit;
an overall aggregating unit provided in a cloud server for creating overall information by aggregating the operation information of the substrate production lines of the plurality of production bases based on the base information respectively received from the plurality of information transmission units;
An area provided in the cloud server, dividing all the production bases into a plurality of areas, and summarizing the operation information of the board production lines in the area based on at least one of the base information and the overall information. an area tallying unit that seeks information; and
The plurality of areas has a hierarchical structure of two or more layers including a plurality of upper layer areas and a plurality of lower layer areas obtained by dividing at least one of the upper layer areas,
The area tallying unit obtains the area information for each of the upper layer areas, and when the first upper layer area is specified, targets the plurality of lower layer areas obtained by dividing the first upper layer area. obtaining a plurality of the area information and displaying the area information of the plurality of the lower areas ;
Operation information monitoring system for circuit board production lines.
The hierarchical structure of the area has the production base, the board production line, or a board production machine that is a component of the board production line as the lowest layer area,
The area tallying unit performs a drill-down process of moving a layer of the area from which the plurality of area information is to be obtained to a lower layer according to a designation, and a layer of the area from which the plurality of the area information is to be obtained. It is possible to perform drill-up processing to move to the upper layer side according to the specification,
The operation information monitoring system for a substrate production line according to claim 1.

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