JP2012003632A - Manufacturing process management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a process management system capable of identifying each component and tracing a process until completion of predetermined products in a work process where workers intervene in fabrication of the products consisting of a plurality of components or various products.SOLUTION: A manufacturing process management system records image information which a manufacturing process of a product 30 is filmed by a camera 13 and code information which an identification code 24 given to the product is read by a reader 14 in association with each other in a data base. By projecting the image information which is retrieved by using the code information to a browsing terminal, the manufacturing process of specific products can be traced.

Description

  The present invention relates to a manufacturing process management system that records an image of a manufacturing process using a moving image or still image camera and traces the manufacturing process of each product in the manufacturing process of the product.

In a manufacturing process in which a product consisting of multiple components (parts) or a wide variety of products is assembled by an operator, it is easy for mistakes to occur, and it is extremely important for process management to detect defective products. is there. In particular, it is essential to monitor the manufacturing process for products whose defects cannot be found by inspection after assembly, and various methods are used to determine the suitability of the work while recording the work procedure as an image. ing.
Patent Document 1 is a pharmacy business monitoring system, characterized by combining an image of a surveillance camera and an RFID tag, and linking and recording position information by an RFID attached to a carrier used for business and an image by a surveillance camera. Smooth operation verification is possible when an accident occurs.

JP 2007-15001 A

  However, in order to manage the process of assembling a plurality of parts and the process of assembling a large number of varieties, it is necessary to trace up to the individual parts, and whether the position information is correct or not as in the method using the RFID and the reader / writer in Patent Document 1. It is not enough to judge.

  As a manufacturing process of a product in which a defect cannot be found by the above-described inspection after assembly, for example, there is a sealing process for a form addressed to an individual. This involves a task of combining different forms for each individual (referred to as picking) and enclosing them in individual destination envelopes. Therefore, in order to monitor this, it is necessary to determine individual forms, determine the suitability of the combination, and trace (trace) until they are sealed in an appropriate envelope.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a process management system capable of identifying each part and tracing a process until the product is completed as a predetermined product in the picking work process such as the sealing process of the form. .

The manufacturing process management system of the present invention that solves the above problems is as follows.
In a manufacturing process management system for managing a manufacturing process for manufacturing a large number of product groups, an identification code giving means for giving an identification code for identifying the product to each product in the product group, and a predetermined process in the manufacturing process Imaging means for taking an image during processing related to the product,
Additional information acquisition means for acquiring additional information consisting of process specifying information for specifying a process at the time of imaging, time specifying information for specifying a time at the time of imaging, and an identification code for specifying a product at the time of imaging;
A database that stores the image information captured by the imaging unit and the additional information in association with each other;
Browsing means for browsing image information stored in the database in association with the additional information;
It is characterized by comprising.

The image captured in the predetermined process includes an operation of a worker in the process.
The imaging means in the predetermined step is a video camera.
Furthermore, the identification code is a two-dimensional code assigned to each product.

  According to the manufacturing process management system of the present invention, the image information captured by the imaging means is associated with the additional information and recorded as information on the manufacturing process of the specific product. Appropriateness of the manufacturing process can be determined. For example, analysis of image information can contribute to analysis of occurrence of defective products, improvement of workability, improvement of efficiency, and the like.

Configuration diagram of manufacturing process management system of the present invention Diagram showing the flow before production Diagram showing manufacturing flow

First, the outline of the manufacturing process management system of the present invention will be described with reference to FIG.
FIG. 1 shows a manufacturing process management system according to the present invention. Here, a form picking operation is taken as an example of the manufacturing process, and the manufacturing process management system 10 is responsible for recording and browsing related to the picking operation.

The manufacturing process management system 10 includes a server 12 responsible for data processing related to manufacturing and storage of data, a camera 13 as an imaging means for capturing an image related to work, a reader 14 for reading an identification code given to a product, a specific product These devices are composed of devices such as a viewing terminal 15 for viewing images related to the work process, and these devices are connected to each other via a network 16.
The server 12 controls the entire manufacturing process management system according to an instruction from the management terminal 120 connected to the server 12.

The worker 11 takes a predetermined form out of n types of product groups (forms 1 to n) output from the production device 20 and sets it as a product 30. Further, the product 30 is sealed in a predetermined envelope, and the sealed letter 25 is finished.
During this time, the camera 13 captures the work performed by the worker 11 including the worker 11 and stores it in the database 121 attached to the server 12 in association with additional information described later. The image information stored in this way is associated with additional information to be described later, and it becomes possible to later extract the work status of a specific product and display it on the browsing terminal 15 as browsing means.

  Hereinafter, the operation of the manufacturing process management system 10 according to the present invention will be described in detail with reference to FIGS. 2 shows a process before the worker 11 starts picking work, that is, a flow from “applying an identification code” to “production”, and FIG. 3 relates to picking work and image recording. Represents a flow.

<Applying identification code>
Identification codes 24 for specifying individual products are assigned to the n types of product groups 21 (forms 1 to n). The identification code 24 is management information allocated in advance for each product. In the configuration of FIG. 1, the identification code 24 is generated by the server 12 and stored in the database 121 of the server 12 as one of the product management information. The product management information is a set of information related to the product to be manufactured, and includes a work ID such as an item ID and a work number, an identification code that is a product ID, and incidental information related thereto, and these are linked to the database 121. As stored in the server 12.
The identification code 24 is sent in advance to the production equipment 20 so as to be assigned to a product group (forms 1 to n) produced by the production equipment 20 (S21). In this way, the production device 20 produces a product group to which the identification code 24 is added (S22).
Thus, prior to production, the server 12 executes generation, storage, and assignment of an identification code, and functions as an identification code provision unit.

  Note that it is desirable to process the identification code simultaneously with the creation of each form. If the barcode 241 or the two-dimensional code 242 is used as the identification code, it is possible to print the form and print the identification code at the same time. In particular, since the two-dimensional code 242 can hold a large amount of information, it is suitable for use in the management of the manufacturing process of the above-described multi-product products.

<Picking>
For the product group 21 (forms 1 to n) output by the production device 20, the worker selects a predetermined product 30 from the product group (S31). Subsequently, the identification code 24 of the product 30 is read using the reader 14 (S32).
The product 30 is not limited to a single form as shown in FIG. 1, but may be a plurality of forms. In this case, reading by the reader 14 is performed by the number of forms that are products.
It is also possible to obtain a work instruction such as which form should be taken out from the browsing terminal 15 based on the work ID.

<Additional information acquisition>
The camera 13 starts photographing when the reader 14 reads the identification code 24 (S33). Image information to be photographed is stored in the database 121 together with the identification code 24 and time (time specifying information). Further, the product management information stored in the database 121 and the read identification code 24 are used as a key. By linking, it is possible to link with process identification information such as item ID and work ID. That is, the server 12 may acquire process specifying information, time specifying information, an identification code, and the like as additional information, associate them with the image information captured from the camera 13, and store them in the database 121 again (S34).

<Encapsulation>
In the example of FIG. 1, one work unit ends with sealing, but if a work identification code based on the work ID is given to the envelope, the identification code is read by the reader 14 (S35), This can be used as a trigger to stop the imaging of the camera 13 (S36). Further, by collating the read work identification code with the product management information, it is possible to determine whether the sealed letter 25 and the content product 30 match as specified.

<Browse>
The image information stored in the database 121 is displayed on the browsing terminal 15 together with additional information associated with the information. For example, when taking out a scene of a specific work, it is only necessary to search the related image by operating the viewing terminal 15 and inputting a work ID to search for a work identification code using the reader 14. A method is also possible.
Note that image information captured by the camera 13 can be used for both moving images and still images, and if the camera 13 is a video camera, both moving images and still images can be captured. In the case of a still image, the frame is shot in a predetermined cycle.

DESCRIPTION OF SYMBOLS 10 Manufacturing process management system 11 Worker 12 Server 13 Camera 14 Reader 15 Reading terminal 16 Network 20 Production equipment 24 Identification code 30 Product 120 Management terminal 121 Database

Claims (4)

In a manufacturing process management system that manages a manufacturing process for manufacturing a large number of product groups,
An identification code giving means for giving an identification code for identifying the product to each product in the product group;
Imaging means for taking an image at the time of processing related to the product in a predetermined process in the manufacturing process;
Additional information acquisition means for acquiring additional information consisting of process specifying information for specifying a process at the time of imaging, time specifying information for specifying a time at the time of imaging, and an identification code for specifying a product at the time of imaging;
A database that stores the image information captured by the imaging unit and the additional information in association with each other;
Browsing means for browsing image information stored in the database in association with the additional information;
A manufacturing process management system comprising: The manufacturing process management system according to claim 1, wherein the image captured in the predetermined process includes an operation of a worker in the process. 3. The manufacturing process management system according to claim 1, wherein the imaging means is a video camera in the predetermined process. The manufacturing process management system according to claim 1, wherein the identification code is a two-dimensional code assigned to each product.

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