JP7161829B2 - Information management system - Google Patents

Description

The present invention relates to an information management system that uses information about defects in products (for example, beverages) distributed in the market to improve various inconveniences at manufacturing sites.

Various information management systems have conventionally existed in connection with the improvement of manufacturing sites. For example, in the conventional system shown in FIG. 7, there are a plurality of manufacturing plants W (W1, W2, W3), and each manufacturing plant W has a plurality of manufacturing lines WL (WL1, WL2, WL3). Even in such a situation, for example, if a defective product is found in a product distributed in the market, the information management system 100, based on the information on the defective product, can reorganize the defective product from each stage in the manufacturing process to the distribution process. can be traced to the beginning of Then, it is possible to identify the factory, production line, production time, etc. that caused the occurrence of the defective product, specify the cause of the defect, stop the distribution of the product, and prevent further spread to the market.

In relation to such conventional technology, there is an information processing system capable of preventing falsification of input information (see Patent Document 1).
Such conventional techniques (the technique of FIG. 7 and the technique of Patent Document 1) are very useful. No attempt has been made to improve manufacturing sites (for example, manufacturing lines) where defects have occurred due to the use of these methods.
In other words, in the conventional information management system, there is a problem that it is not possible to work to improve various inconveniences at the manufacturing site based on information on product defects (so-called "complaints").

JP 2012-177982 A

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-described problems of the prior art, and aims to provide an information management system that contributes to improving various inconveniences at manufacturing sites based on information on product defects. there is

The information management system (1) of the present invention is an information management system (1) that manages information about products (eg, beverages) at a manufacturing site (eg, factory W) having a plurality of production lines (WL),
A device (1A: defective product information generation block) having a function of managing information on defective products (information on so-called “complaints”) (based on information on the occurrence of defective products from the market);
A device (1B: production line identification block) having a function of identifying a production line in which a defective product is produced from information on the defective product;
A device (1D: line display color determination block) having a function of determining the display color of each production line (displayed in the system of the present invention) from the number of times and frequency (period) of occurrence of defective products,
A device (1F: warning block) that has a function of canceling a penalty (e.g. shipping suspension warning) or canceling the penalty for a line where defective products have occurred ;
A device (1G : Elapsed period determination block) and
If there are no defective products for a specified period of time (in the production line where the defective product occurred), it is determined that countermeasures against defective products have been taken (necessary measures have been taken to prevent the occurrence of defective products). and a function of transmitting a signal indicating that countermeasures against defective products have been taken to the device (1D: line display color determination block) that determines the display color (1H: improvement effect certification block) including
The display color in each production line determined by the device (1D: line display color determination block) for determining the display color includes a display color (for example, colorless) when no defective product occurs, and A display color (e.g., yellow) when there is a history of non-defective products but no defective products have occurred since then, and a display when there is a history of defective products occurring within the predetermined period and subsequent defective products have occurred again. a color (e.g., red) and a display color (e.g., black) when there is a defective product occurrence history within the predetermined period and two defective products have occurred after that,
The device for determining the display color (1D: line display color determination block) sends a signal indicating that the countermeasures for defective products have been taken (1H: improvement effect recognition block). When the signal indicating that the above is received, the display color of the production line is changed from the display color (for example, black) when there is a history of defective product generation within the predetermined period and two defective products have occurred after that. The display color is changed to (for example, red) when there is a history of defective product occurrence within the period and after that, the defective product occurs again, and there is a history of defective product occurrence within the predetermined period and after that, the defective product occurs again. The display color (e.g., red) when a defect occurs is changed to a display color (e.g., yellow) when there is a defective product occurrence history within the predetermined period, but there is no defective product after that, or the predetermined period The display color (e.g., yellow) when there is a history of defective products in the product, but there are no defective products after that, is changed to the display color when there are no defective products (e.g., colorless). Characterized by

Here, the above devices (device 1A having a function of managing information on defective products, device 1B having a function of specifying a production line, device 1D having a function of determining the display color of each production line, penalty or cancellation of penalty 1F) can be configured as a functional block included in an information processing device (including both a single information processing device and a plurality of information processing devices), but each single It is also possible to configure with one information processing device.
Here, the term “information processing equipment” means personal computers, tablet terminals, smartphones, and other general equipment having information processing functions.

According to the present invention having the above configuration, the display color indicating each production line is changed according to the frequency of occurrence of defective products (for example, colorless→yellow→red→black). As a result, the frequency of occurrence of defective products can be visualized for each production line. Then, finally (for example, when the display color becomes "black"), a penalty is imposed on the production line (for example, a warning of suspension of shipment is issued).
On the other hand, according to the present invention, even if defective products are produced, effective measures are taken to prevent the occurrence of defective products, and if no defective products are produced within a predetermined period, various warnings are avoided ( For example, the display color is changed in the direction toward "colorless" (eg, returned to the display color toward "colorless").

Therefore, when the present invention is applied, not only the production line to which the penalty is imposed (for example, the production line whose display color is "black"), but also any more defective products that occur will result in the penalty being imposed. Also in the production line (for example, the production line whose display color is "red"), measures are taken to prevent the occurrence of defective products in order to avoid penalties (for example, the display color becomes "colorless" side). In addition, necessary measures should be taken to change the display color (for example, "colorless") of lines where defective products have occurred (for example, lines with a display color of "yellow") to lines on which no defective products have occurred yet. is expected.
In addition, if the present invention is introduced, all production lines at the manufacturing site will be biased to take effective measures to prevent the occurrence of defective products. Transition to the display color (colorless) of the production line where non-defective products have not been produced.

Then, the present invention can be applied to the existing system (when a defective product is found in a product distributed in the market, based on the information about the defective product, it can be traced from each stage of manufacturing of the defective product to the beginning of the distribution process). It can be easily introduced at any manufacturing site where a system with a function to

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the outline|summary of embodiment of this invention. FIG. 4 is an explanatory diagram showing a manner in which display colors of a production line are given according to the embodiment; FIG. 10 is an explanatory diagram showing a manner in which the display color returns to the previous display color when the production line in the embodiment is improved; It is a functional block diagram of a management system in an embodiment. 4 is a flow chart showing control when a display color is given to a production line in the embodiment; 7 is a flow chart showing control for returning the display color to the previous display color by improving the production line in the embodiment. 1 is an explanatory diagram showing an overview of a conventional information management system; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
The management system according to the illustrated embodiment is generally designated 1 . The management system 1, like the information management system according to the prior art, has a plurality of manufacturing plants W, and even if each manufacturing plant has a plurality of production lines WL, the management system 1 can be distributed in the market, for example. If a defective product is found in a product to be manufactured, it has a function to track the product from each stage of the product manufacturing process to the beginning of the distribution process based on the information on the defective product.
In FIG. 1, an information management system 1 is connected to each of a plurality of factories W (W1, W2, W3) having a plurality of production lines WL (WL1, WL2, WL3) via communication circuits L (L1, L2, L3). and manages information on products (eg beverages).
The information management system 1 manages information on defective products (so-called "complaints") based on information on the occurrence of defective products from the market, and exhibits the above-described tracking function to identify the factory and production line where the defective product has occurred. It has a function to specify, and by specifying the factory and production line where the defective product occurred, it contributes to investigating the cause of the problem.

The information management system 1 also has a function of determining the display color of each manufacturing line WL (of each factory W) based on the number and frequency (period) of occurrence of defective products in each manufacturing line WL of each factory W. ing. The term "display color" means the color used when each manufacturing line WL is displayed (for example, on the display 2, see FIG. 4) in the information management system 1. FIG.
The production line WL in which the defective product has occurred is notified of this fact, and warnings (in the illustrated embodiment, "yellow warning", "red warning", and "black warning ": the frequency of occurrence of defective products increases in the order of yellow → red → black), and the display colors such as "yellow", "red", and "black" are added. Note that the display color of the production line WL in which no defective products are produced is "colorless".
The display colors (including unemployed when no defective products are produced) assigned (colored) to each production line WL will be described with reference to FIG.
In the illustrated embodiment, “yellow,” “red,” “black,” and “transparent” display colors are used, but these are merely examples, and the display colors of the production line WL are limited to these. does not mean

Even in the production line WL where defective products are generated and the display colors "yellow", "red", and "black" are attached, effective measures are taken to prevent the occurrence of defective products, and a predetermined period (for example, 3 months) ), the display color of the manufacturing line WL is changed (restored) step by step to a display color that is farther from various warnings (that is, closer to "colorless").
The change (restoration) of the display color assigned to each manufacturing line WL will be described with reference to FIG.
In FIG. 1, each production line WL1, WL2, and WL3 in each factory W1, W2, and W3 is displayed with a display color, which is an example of the display color set at a certain point for explanation. . At the "certain point in time", the display color of the production line WL1 of the factory W1 is "red". Here, if a defective product occurs within a predetermined period in the production line of the display color "red", the display color becomes "black" accompanied by a "shipment suspension warning" (with penalty).
In the example of FIG. 1, the display color of the production line WL3 of the factory W1 and the production lines WL2 and WL3 of the factory W2 is "yellow". WL1, WL2, and WL3 have no defective products, and the display color is "colorless."
As shown in FIG. 1, the information management system 1 constantly monitors defective products on the market and each production line WL. Each production line WL is displayed with corresponding colors (display colors “yellow”, “red”, and “black”).

FIG. 2 shows that the production line, which is a feature of the system shown in FIG. FIG. 3 shows that the color is changed (restored) when remedial measures are taken and defective products are no longer generated.
In other words, the features of the information management system 1 according to the illustrated embodiment are, first, as shown in FIG. In this case, a warning is sent to each production line WL and the display color is changed (each production line WL is colored).
Secondly, as shown mainly in FIG. 3, when effective remedial measures are taken in the manufacturing line WL where defective products have occurred and defective products are no longer generated, the line on which the remedial measures have been taken To change (return) the display color to a display color similar to that of other lines in which defective products are not generated or other lines in which defective products are less generated.
First, the first feature will be described with reference to FIG.

In FIG. 2, changes in display colors applied (colored) in each of the production lines WL1, WL2, and WL3 of the factory W1 are exemplified in chronological order (from January to August).
According to the rule for assigning (determining) the display color in the illustrated embodiment, a warning (yellow warning) is given to the production line WL (display color "colorless") in which the first defective product is produced, and "yellow warning" is given. ” is added.
If there is already a defective product occurrence history within a predetermined period (three months in the example of FIG. 2), and a defective product occurs again within the predetermined period on the production line WL marked with a display color of "yellow" (Occurrence of defective product for the second time), a warning (red warning) is issued, and the display color of the production line WL is changed from "yellow" to "red" indicating a serious situation.
Then, in the production line WL to which the display color of "red" is applied, when further defective products occur within a predetermined period (the third defective product occurs), the display color of the production line WL is more serious than "red". It is changed to "black" to indicate a bad situation. In the illustrated embodiment, the “black” display color is the most serious display color, and a “shipment suspension” warning is given as a penalty to the production line WL marked with the “black” display color. .
Incidentally, as described above, the display color of the production line WL in which no defective products are produced is "colorless".

In the example of FIG. 2, the display color "yellow" is added because the defective product occurred in January (first time) on the production line WL1 of the factory W1. After that, in March (within 3 months after "yellow" was added), another defective product occurred (second defective product occurred within the specified period), so the display color was changed from "yellow" to "red". Furthermore, in April (within 3 months after the "red" was added), a defective product occurred (3rd time), so the display color was changed from "red" to "black", and "shipment suspension" was imposed as a penalty. ' was warned.
After that, effective measures to prevent the occurrence of defective products on the production line WL1 were successful, and no defective products occurred in a predetermined period (three months). The display color has been changed (restored) from "black" to "red". Here, the second feature is that the display color is recovered when there is no defective product for a predetermined period of three months, which will be described with reference to FIG.
In FIG. 2, the display color is the display color at the time (month) when the display color was changed, and the display color of "month" where the display color is not described is the display color of the previous "month". are identical. For example, on the production line WL1, the display color (state) of February is the display color "yellow" of January, and the display color (state) of May to July is the display color "black" of April. be.

In the manufacturing line WL2 of the factory W1, a defective product occurred in April, so the display color "yellow" was added. After that, on the production line WL2, effective measures to prevent the occurrence of defective products were successful, and no defective products occurred during the predetermined period of 3 months, so the display color changed from "yellow" to "colorless" in August. changed (restored).
In production line WL3 of factory W1, a defective product occurred in February, so the display color was changed from "yellow" to "red." After that, on production line WL3, effective measures to prevent the occurrence of defective products were successful, and no defective products were found during the predetermined period of three months. changed (restored).
The production line where the defective product is produced is displayed in color on the management system 1, and since this fact can also be confirmed by workers in other production lines, the production line displayed in color is displayed. Those who do are embarrassed to work on a colored production line, and are strongly motivated to prevent defective products from occurring. On the other hand, the workers of the uncolored (colorless) production line with no defective products are motivated to maintain the colorless state. As a result, it is expected that each production line will take necessary measures to prevent the occurrence of defective products.

Next, referring to FIG. 3, the display color of the second feature (line on which improvement measures have been taken) is the same as that of other lines with no defective products or other lines with few defective products. recovering to a normal display color).
As described above, in the production lines WL with the display colors "yellow", "red", and "black", the production lines WL take effective measures to prevent the occurrence of defective products, If there are no defective products from the production line WL within a month), the display color will recover step by step ("black" → "red", "red" → "yellow") so as to keep away from various warnings. , "yellow" → "colorless").
FIG. 3 shows, in chronological order, the occurrence of defective products (occurrence of market defect), the display color, and the recovery of the display color in the production line WL1. In FIG. 3, time passes from left to right.
In the example of FIG. 3, the first defective product (defect in the market) occurs at the time point A, and the display color "yellow" is attached to the production line WL1. After that, a defective product (market defect) occurred again at time B within a predetermined period (for example, two months later) from time A, so the display color of production line WL1 was changed from "yellow" to "red".

Furthermore, in the production line WL1, a defective product (a defect in the market) occurred again at time C within a predetermined period (for example, one month) from time B, so the display color was changed from "red" to "black." As a result, the display color of the production line WL1 became "black", and the production line WL1 was warned of suspension of shipment as a penalty.
Effective measures were taken to prevent defective products from being produced on the production line WL1 to which the display color "black" was added at time C, and no defective products were produced within a predetermined period from time C. Therefore, at time point D (at least three months after time point C), the display color of production line WL1 was restored from "black" to "red", and at the same time, the warning of shipment suspension was lifted.

Next, the information management system 1 according to the illustrated embodiment will be described with reference to FIG.
In FIG. 4, which is a functional block diagram, an information management system 1 that manages information on products (for example, beverages) at a manufacturing site (for example, factory W) having a plurality of production lines WL includes a defective product information generation block 1A, a manufacturing It has a line identification block 1B, a defective product occurrence count determination block 1C, a line display color determination block 1D, a treatment/response management block 1E, a warning block 1F, a predetermined period elapse determination block 1G, an improvement effect certification block 1H, and a storage unit 1I. ing.

The defective product information generation block 1A, to which information regarding the occurrence of defective products from the market is transmitted, has a function of managing information regarding the defective product (information regarding so-called "complaints"). The information on the defective product transmitted to the defective product information generation block 1A is transmitted to the production line specifying block 1B via the signal line SL1 and to the storage unit 1I via the signal line SL2.
In each of the functional blocks of the information management system 1, the process of adding a display color to the production line in response to the occurrence of defective products and the process of issuing a warning are to be executed promptly when information on the occurrence of defective products in the market is obtained. is configured to
The manufacturing line identification block 1B has a function of identifying the manufacturing line where the defective product is generated based on the information regarding the defective product acquired from the defective product information generation block 1A. A known technique can be applied to identify the manufacturing line in the manufacturing line identification block 1B.
Information on the manufacturing line in which the defective product is identified by the manufacturing line identifying block 1B is transmitted to the defective product generation frequency determination block 1C via the signal line SL3, and is also transmitted to the storage unit 1I via the signal line SL4. stored.

The defective product occurrence frequency determination block 1C acquires information specifying the production line where the defective product is produced from the production line specifying block 1B, and transmits a command to the storage unit 1I via the signal line SL5 to confirm the specification. Information on the previous defective product in the identified production line (for example, the date and time when the specified production line generated the previous defective product, the display color at that time, etc.) is acquired. The information obtained from the storage unit 1I can include the accumulated number of defective products in the identified manufacturing line.
The defective product occurrence count determination block 1C has a function of determining the number of defective product occurrences within a predetermined period in the production line (the production line where the defective product is produced) based on the information acquired from the storage unit 1I. Here, the number of occurrences of defective products is information on the number of occurrences of defective products, and includes, for example, the number of occurrences of defective products within a predetermined period (for example, three months), the display color of the manufacturing line when defective products are produced, and the like.
The information on the number of defective product occurrences in the manufacturing line determined by the defective product occurrence frequency identification block 1C is transmitted to the line display color determination block 1D via the signal line SL6, and is sent to the storage unit 1I via the signal line SL7. sent.

The line display color determination block 1D has a function of determining the display color (line display color) of the production line based on the defective product occurrence frequency information of the production line acquired from the defective product occurrence frequency determination block 1C. Determination of the display color is performed based on the rules described above with reference to FIG. Although not shown in FIGS. 2 and 3, it is also possible to consider the accumulated number of occurrences of defective products when determining the display color.
The line display color determined by the line display color determination block 1D (the line display color of the production line where the defective product is produced) is transmitted to the display 2 via the signal line SL8, and is processed and processed via the signal line SL9. It is sent to the corresponding management block 1E and sent to the storage unit 1I via the signal line SL21.
As described above, the display 2 displays the production line in the display color of the production line determined by the line display color determination block 1D. As a result, the frequency of occurrence of defective products in each production line can be visualized. Become.
When determining the line display color, the block 1C for determining the number of occurrences of defective products can be omitted. In this case, the line display color determination block 1D obtains the manufacturing line identification information from the manufacturing line identification block 1B, obtains the previous defective product information from the storage unit 1I, and determines the line display color.

The action/response management block 1E has a function of transmitting the line display color acquired from the line display color determination block 1D (the line display color of the manufacturing line where the defective product is produced) to the warning block 1F via the signal line SL10. . The information on the line display color acquired from the line display color determination block 1D is used as the production line measure information to be described later.
The warning block 1F issues warning information to the production line based on the information about the line display color of the production line where the defective product is produced, which is acquired from the line display color determination block 1D via the action/response management block 1E. It has a function to make a call.
Warning information transmitted from the warning block 1F is transmitted to the display 2 via the signal line SL11 and displayed on the display 2. FIG. The type of warning is a yellow warning (the mildest warning) when the display color becomes "yellow" (for a manufacturing line with a display color of "colorless": when a defective product occurs for the first time within a specified period), and a display There is a red warning when the color "yellow" of the production line becomes "red", and a shipment suspension warning (the most severe: implication of penalty) when the display color "red" of the production line becomes "black".

If necessary measures (improvement measures) such as replacement of raw material lots are taken on the production line side where the defective product has occurred, the type, content, and target of the measures taken are displayed by the production line side input device 3. It is possible to input the manufacturing equipment to be used, the date and time when measures were taken, and other information, and transmit them to the treatment/response management block 1E via the signal line SL12. Here, the production line side input device 3 is composed of, for example, a personal computer, a tablet terminal, a smart phone, or other information equipment.
The information on the improvement measures input to the treatment/response management block 1E is transmitted from the treatment/response management block 1E to the line display color determination block 1D via the signal line SL13, and is used as a factor for determining the line display color. be utilized. At the same time, it is transmitted to the warning block 1F via the signal line SL14 and utilized as data for issuing and canceling the warning. In addition, information on remedial measures is transmitted from the treatment/response management block 1E to the storage unit 1I via the signal line SL15.

The predetermined period elapse determination block 1G determines whether the line display color determination block 1D determines recovery of the display color, or the warning block 1F cancels the penalty (for example, shipping stop warning) in the target manufacturing line. It has a function of determining whether or not a predetermined period of time (for example, three months) has passed since the previous occurrence of a defective product (without the occurrence of another defective product). Here, the manufacturing line (to be investigated) is selected sequentially from all manufacturing lines, for example. It is also possible to sequentially select production lines that have a history of defective products.
When determining whether or not the predetermined period has passed, the predetermined period elapse determination block 1G receives the previous defective product information (for example, the date and time when the defective product was produced), or together with information on measures taken by the selected production line (details of the measures, date and time, etc.), and determines whether or not a predetermined period has passed. The determination is performed based on the rules described above with reference to FIG.
Here, the information on the measures taken by the selected line is input from the production line side input device 3, and can be used as a trigger for investigating a predetermined period for canceling the warning and restoring the display color.
The predetermined period elapse determination block 1G determines that a predetermined period (for example, three months) has elapsed since the previous defective product was produced (without the defective product being produced again) in the selected production line. Information about the decision is transmitted to the improvement effect certification block 1H via SL17, and the information is transmitted to the storage unit 1I via the signal line SL18.

The improvement effect recognition block 1H is the information acquired from the predetermined period elapse determination block 1G (information indicating that a predetermined period has passed without any defective product since the previous defective product was generated in the target selected production line). Based on this, it has the function of judging that countermeasures against defective products have been taken in the selected production line (taking necessary measures to prevent the occurrence of defective products) and certifying the improvement effect in the production line.
When the improvement effect certification block 1H determines that countermeasures against defective products have been taken in the selected production line (when the improvement effect is certified), the improvement effect certification information is sent to the line display color determination block via the signal line SL19. 1D or to warning block 1F via signal line SL20. If the display color of the production line judged to have taken measures against defective products is "yellow" or "red" (when the improvement effect is certified), the information to the effect that the improvement effect has been certified It is sent to the line display color determination block 1D.
If the display color of the production line for which the improvement effect is certified (at the time when the improvement effect is certified) is "black", the information to the effect that the improvement effect is certified is displayed in the warning block 1F in addition to the line display color determination block 1D. is also sent to
If the display color of the selected production line is "colorless", the information to the effect that it was determined that countermeasures against defective products were taken in the production line for which the improvement effect certification block 1H was selected (that the improvement effect was certified) is , line display color determination block 1D, and warning block 1F. Alternatively, even if it is sent, the display color of the manufacturing line is already "colorless", so the above procedure is not executed.

The line display color determination block 1D has a function of determining to change (recover) the display color of the selected production line based on the improvement effect certification information acquired from the improvement effect certification block 1H. The recovery of the display color is performed step by step with respect to the current display color, for example, in a direction away from various warnings (that is, closer to "colorless"). In the illustrated embodiment, if the previous display color was "black" it will revert to "red", if it was previously "red" it will revert to "yellow", and if it was previously "yellow" it will revert to "colorless". recover to When recovering the display color, the line display color determination block 1D acquires the action information acquired from the treatment/response management block 1E or the defective product information of the selected production line from the storage unit 1I, and determines the display color. .
Information indicating that the display color of the manufacturing line has been restored and information on the display color after restoration are transmitted to the display 2 via the signal line SL8 and visualized. At the same time, the information indicating that the display color of the production line has been restored and the information of the restored display color are sent to the storage unit 1I via the signal line SL21.

The warning block 1F displays the current display color based on the improvement effect certification information acquired from the improvement effect certification block 1H (information indicating that necessary measures have been taken to prevent the occurrence of defective products). It has a function of canceling the shipment suspension warning for the production line that is "black" and is in the shipment suspension warning (as a penalty).
Information of warning cancellation by the warning block 1F is transmitted to the display 2 via the signal line SL11, and is displayed and visualized on the display 2. FIG.
As described above, the storage unit 1I has a function of acquiring and storing information (defective product information, display colors of production lines, information on countermeasures, etc.) from each block. The information stored in the storage unit 1I is transmitted by each functional block as required to serve the required processing.
In the illustrated embodiment, various functional blocks in a control unit, which is a single information processing device, constitute a device having the above functions. However, the various devices described above can be configured as separate information processing devices. The term "information processing equipment" means personal computers, tablet terminals, smartphones, and other general equipment having information processing functions.

In the illustrated embodiment, as shown in FIG. 2, the display color of each production line is changed when displayed in the information management system based on the frequency of occurrence of defective products. Coloring)) control will be described mainly with reference to FIG.
In FIG. 5, in step S1, the presence or absence of defective product occurrence information from the market is confirmed by the defective product information generating block 1A. If there is information on the occurrence of defective products ("Yes" in step S1), the process proceeds to step S2.
In step S2, the production line where the defective product is produced is specified by the production line specifying block 1B.

In step S3, the line display color determination block 1D sets the display color (current display color: display color before the generation of the defective product) of the production line where the defective product (hereinafter referred to as "specific line") is "colorless". (display color when no defective product has occurred within a predetermined period).
In step S3, if the display color of the specific line is "colorless"("Yes" in step S3), proceed to step S4. If the display color of the specific line is not "colorless"("No" in step S3), Go to step S5.
In step S4 (when the display color of the specific line is "colorless"), the current display color of the specific line is "colorless", and the line display color determination block 1D responds to the occurrence of the defective product this time. The display color of the specific line is changed from "colorless" to "yellow" (one defect occurs). Then, a warning block 1F issues a yellow warning. The change in display color, the emission of a yellow warning, is displayed and visualized on the display 2 of the system.
After completing step S4, the process proceeds to step S10.

In step S5 (when the display color of the specific line is not "colorless" in step S3), the current display color of the specific line is set to "yellow" (if one defective product occurs within a predetermined period, the current display color of the specific line is set to "yellow"). times).
In step S5, if the display color of the specific line is "yellow"("Yes" in step S5), the process proceeds to step S6; if the display color of the specific line is not "yellow"("No" in step S5), Go to step S7.
In step S6 (when the display color of the specific line is "yellow" in step S5), the current display color of the specific line is "yellow", and in response to the occurrence of defective products again within a predetermined period (2 When the second defective product occurs), the display color of the specific line is changed from "yellow" to "red" by the line display color determination block 1D. A warning block 1F issues a red warning. Also at this stage, the change in display color and the transmission of the red warning are displayed and visualized on the display 2 of the system.
After completing step S6, the process proceeds to step S10.

In step S7 (when the display color of the specific line is not "yellow" in step S5), the current display color of the specific line is set to "red" by the line display color determination block 1D (defective product occurs twice). Determine whether or not
In step S7, if the display color of the specific line is "red"("Yes" in step S7), proceed to step S8; if the display color of the specific line is not "red"("No" in step S7), step Proceed to S9.
In step S8 (when the display color of the specific line is "red" in step S7), the current display color of the specific line is "red" (defective products have occurred twice), and there are no defective products within a predetermined period. In response to the occurrence (the occurrence of the third defective product), the display color of the specific line is changed from "red" to "black" by the line display color determination block 1D. Then, a warning block 1F issues a shipping suspension warning as a penalty. At this stage as well, the change in display color and the transmission of the shipping suspension warning are displayed and visualized on the display 2 of the system.
After completing step S8, the process proceeds to step S10.

In step S9 (when the display color of the specific line is not "red" in step S7), the current display color of the specific line is "black" (defective products have occurred three times and a shipping suspension warning has been issued). state), and in response to the occurrence of defective products again this time (fourth occurrence of defective products), the warning block 1F adds the number of warnings while maintaining the shipping stop warning for the specific line. Additional transmissions of the number of alerts are displayed and visualized on the display 2 of the system.
After step S9 ends, the process proceeds to step S10.
In step S10, the specific line on which the processes of steps S1 to S9 have been executed is treated and dealt with, and other specific lines are selected.
The process of step S10 also includes a process of recovering the display color of the line and canceling the warning if the defective product does not occur again within a predetermined period (three months in the embodiment). The procedure for restoring the display color of the line and canceling the warning (see FIG. 3) will be described with reference to FIG.

As shown in FIG. 3, when effective remedial measures are taken in a production line where defective products have occurred and no defective products are generated, the display color of the line where the remedial measures have been taken is changed to that of the defective products. Mainly referring to FIG. 6, the control for changing (recovering) the display color to the same display color as that of other lines in which defects are not generated or other lines in which defective products are less generated will be described.
In the illustrated embodiment, no particular parameter is set as to whether or not effective measures have been taken to prevent the occurrence of defective products. If not, it is determined that effective measures have been taken.
In FIG. 6, in step S11, a manufacturing line to be controlled (a manufacturing line to restore the display color and cancel the alarm: hereinafter referred to as "selected line") is selected. Then, the process proceeds to step S12.
For example, the selected line can be selected sequentially from all manufacturing lines, and the flowchart of FIG. 6 can be periodically executed for the selected manufacturing line. When selecting the selected production line, it is also possible to sequentially select production lines that have a history of defective products.

In step S12, it is determined whether or not the current display color of the selected line in step S11 is "colorless" (no defective product) (line display color decision block 1D in FIG. 4).
As a result of the judgment in step S12, if the display color of the selected line is "colorless", the process returns to step S11 (loop of "Yes" in step S12). On the other hand, if the display color of the selected line is not "colorless"("No" in step S12), the process proceeds to step S13.
In step S13 (when the display color of the selected line is not "colorless" in step S12), the elapse of a predetermined period of time decision block 1G determines that the selected line will not produce a defective product again after the previous defective product has been generated. Determine whether the period (three months) has passed. If the predetermined period of time elapse determination block 1G determines that the predetermined period of time has elapsed without producing defective products again, the improvement effect recognition block 1H (FIG. 4) determines that the measures for improvement have been implemented. It judges and approves the improvement effect, and issues commands to change (restore) the line display color and cancel the warning to the line display color determination block 1D and the warning block 1F (FIG. 4).
As a result of the judgment in step S13, if the predetermined period (three months) has passed without generating defective products again ("Yes" in step S13), the process proceeds to step S14, and without generating defective products again. If the predetermined period (three months) has not passed ("No" in step S13), the process returns to step S11.

In step S14 (if a predetermined period has elapsed without generating defective products again), the line display color determination block 1D sets the current display color of the selected line to "yellow" (one defective product has occurred). Determine whether or not
As a result of the determination in step S14, if the display color of the selected line is "yellow"("Yes" in step S14), the process proceeds to step S15. ”) goes to step S16.
Step S15 (when the display color of the selected line is "yellow" in step S14) corresponds to the fact that the current display color of the selected line is "yellow" and the predetermined period (three months) has passed. Then, the line display color determination block 1D changes (restores) the display color of the selected line from "yellow" to "colorless", and the warning block 1F cancels the yellow warning. do. The restoration of the display color and the removal of the yellow warning are displayed and visualized on the system's display 2 .
When step S15 ends, the process proceeds to step S19.

In step S16 (when the display color of the selected line is not "yellow" in step S14), the line display color determination block 1D determines that the current display color of the selected line is "red" (defective products have occurred twice). determine whether there is
In step S16, if the display color of the selected line is "red"("Yes" in step S16), the process proceeds to step S17; if the display color of the selected line is not "red"("No" in step S16), goes to step S18.
In step S17 (when the display color of the selected line is "red" in step S16), the current display color of the selected line is "red" and the predetermined period (3 months) has passed. Then, the line display color determination block 1D changes (restores) the display color of the selected line from "red" to "yellow", and the warning block 1F cancels the red warning. The restoration of the display color and the cancellation of the red warning are also displayed and visualized on the display 2 of the system.
Also, the current value of the predetermined period (three months) in step S13 is reset to zero, and it is determined whether or not the predetermined period has elapsed.
After completing step S17, the process proceeds to step S19.

In step S18 (when the display color of the selected line is not "red" in step S16), the current display color of the selected line is "black" and a predetermined period of time (three months) has passed. The line display color determination block 1D changes (recovers) the display color of the selected line from "black" to "red". Then, the warning block 1F cancels the shipping suspension warning. The change in the display color and the cancellation of the shipping suspension warning are also displayed and visualized on the display 2 of the system.
Then, the current value for the predetermined period (three months) in step S13 is reset to zero.
After completing step S18, the process proceeds to step S19.
In step S19, another production line is selected as a target for restoration of the display color and release of the alarm. Then, the process returns to step S11.

Although not clearly illustrated, in the illustrated embodiment, for each factory, for each product, for each production line, and for each product type in which a defective product occurs, a certain period of time (for example, one month, one year) , 10-year units) can output a management report.
By referring to the content of the management report, it becomes easier to take measures to further reduce the occurrence of defective products.

According to the illustrated embodiment, the display color indicating each production line in the system according to the illustrated embodiment changes from colorless (no defective products) to yellow (defective products) according to the frequency of occurrence of defective products. 1 occurrence) → red (1 defective product occurs after the display color becomes "yellow") → black (defective products occur even after the display color becomes "red") . This makes it possible to visualize the frequency of occurrence of defective products in the production line. Then, a warning that the shipment is stopped is given to the line whose display color is "black" (see FIG. 2).
On the other hand, if effective measures are taken to prevent the occurrence of defective products, and no defective products occur within a specified period of time (3 months), the shipping suspension warning will move away (approach "colorless"). , the display color is changed (back to the colorless side). That is, when no defective product occurs within a predetermined period, the display color of the production line with the display color of "black" becomes "red", and the display color of the production line with the display color of "red" becomes "yellow". , the display color of the production line with the display color "yellow" becomes "colorless" (see FIG. 3).

Therefore, in the illustrated embodiment, not only the production line where the shipment stop warning is issued (the display color becomes "black"), but also the production line where the shipment stop warning is issued if more defective products occur (display In the production line where the color has become "red"), take measures to prevent the occurrence of defective products in order to move away from shipment suspension warnings (approach "colorless"). Then, it is predicted that necessary measures will be taken to change the display color (colorless) of lines where defective products have occurred (lines with a display color of “yellow”) to lines where defective products have not yet occurred.
That is, when the system according to the illustrated embodiment is introduced, all production lines are biased toward taking effective measures to prevent the occurrence of defective products, and defective products are found throughout the manufacturing site. The display color is changed to "colorless" (the display color of the production line in which no defective products have occurred) by preventing the occurrence of the defect.

In addition, the illustrated embodiment uses an existing system (when a defective product is found in a product distributed in the market, based on the information on the defective product, it is used from each stage in the manufacturing of the defective product to the beginning of the distribution process). It can be easily introduced at a manufacturing site where a system with a function to trace all the way through has been introduced.

It should be noted that the illustrated embodiment is merely an example and is not intended to limit the technical scope of the present invention.
For example, in the illustrated embodiment, the display colors of each line are four types of colorless, yellow, red, and black, but are not limited to four types. The number may be three or less, or five or more, as long as the display colors of the manufacturing line can be classified. And it is also possible to use other colors.
Also, the conditions, period, etc. for changing the display color need not be the same as those exemplified in the illustrated embodiment.

1 Information management system 1A Defective product information generation block 1B Manufacturing line identification block 1C Defective product occurrence count determination block 1D Line display color determination block 1E Treatment/response Management block 1F Warning block 1G Predetermined period elapse determination block 1H Improvement effect recognition block 1I Storage unit W Factory WL Production line

Claims (1)

In an information management system (1) that manages information on products at a manufacturing site (W) having multiple manufacturing lines (WL) ,
a device (1A) having a function of managing information on defective products;
a device (1B) having a function of identifying a production line in which a defective product is produced from information on the defective product;
a device (1D) having a function of determining the display color of each production line based on the number and frequency of occurrence of defective products;
A device (1F) having a function of penalizing or canceling the penalty for a line in which defective products have occurred;
a device (1G) having a function of determining whether or not a defective product has occurred in a target production line within a predetermined period in order to execute the function of canceling the penalty;
A function to determine that countermeasures against defective products have been taken when no defective products have occurred over a predetermined period of time, and a signal indicating that countermeasures against defective products have been taken to the device (1D) that determines the display color. and a device (1H) having the function of transmitting
The display colors for each production line determined by the device (1D) for determining the display colors are the display color when no defective products have occurred, and the display color when there is a history of defective products occurring within a predetermined period, but there are no defective products after that. There are a display color when there is no non-defective product, a display color when there is a history of defective product generation within the predetermined period and a defective product is generated again after that, and a history of defective product generation within the predetermined period. And it is the display color when defective products occur twice after that,
When the device (1D) for determining the display color receives a signal indicating that countermeasures for defective products have been taken from the device (1H) for transmitting a signal indicating that countermeasures for defective products have been taken, manufacturing The display color of the line is changed from the display color when there is a history of defective products within the predetermined period and two defective products have occurred after that, to the display color when there is a history of defective products within the predetermined period and after that, there is a defective product again. The display color is changed to the display color for the occurrence of non-defective products, and there is a history of the occurrence of defective products within the predetermined period, and after that, there is a history of the occurrence of defective products within the predetermined period from the display color when the defective products are produced again. Thereafter, the display color is changed to that for when no defective products have occurred, or the display color for when there is a history of defective product occurrence within the predetermined period but no defective products have occurred since then is changed to that of defective products. An information management system (1) characterized by having a function of changing the display color when there is no occurrence .

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