JPH04256555A - Production system - Google Patents

Abstract

PURPOSE:To obtain a production system which can easily change the content of an equipment motion. CONSTITUTION:When the content of the ID tag 14 in which the content of the equipment motion to be executed on a product is recorded is read by a reading device 15, a rewriting device 21 rewrites the convertion list 19 of the convertion device 18 inside, an equipment controller work device 17 is actuated according to the rewritten content thereof, and the equipment motion corresponding to the ID tag 14 can be executed on the product.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production system, and more particularly to a production system using remote ID.

0002

[Prior Art] On a production line that produces multiple types of products, products are loaded onto the line with so-called ID tags, which are media on which information indicating the type of product (product instruction information) is recorded, attached to the products. . In such a production line, multiple or one operation pattern (conversion table) is required to accommodate the production of all products produced on the line.
are prepared in advance. When the products put into the line arrive at the equipment for each process, the product instruction information recorded on the ID tag is recognized in each process, and the operation pattern corresponding to the product instruction information is selected and a predetermined operation pattern is selected. Equipment operations are performed.

FIG. 7 is a functional configuration diagram specifically showing the configuration of a conventional production system that manages a production line using ID tags.

[0004] First, the product 11 is moved through the production line by a transport device 12 that transports the product. This product 11
A bar code (ID tag) 14 is attached to each, and product instruction information is recorded here. The most commonly used product instruction information is product instruction information indicating the final specifications of the product, which is read by a barcode reader 15 (data reading device). The read product instruction information is then transmitted to the equipment controller 17.

On the other hand, this equipment controller 17 includes a conversion device 18, and a conversion table 19 is installed within the conversion device 18. For this reason, equipment controller 1
Product instruction information entered into the interface within 7.
It is converted into equipment operation information based on a conversion table 19 in the conversion device 18. Then, the equipment controller 17 controls the equipment operation of the product based on this equipment operation information.

FIG. 8 shows specific recorded contents of the conversion table. The recorded contents of the conversion table are different for each process; Table 8a in Figure 8 represents the conversion table for the equipment in process [1], Table 8b represents the conversion table for the equipment in process [7], and Table 8c represents the conversion table for the equipment in process [7]. represents the conversion table in the equipment of step [8]. For example, if product instruction information such as "002" is recorded in the barcode 14 of the product 11, then the process [1
], as shown in Table 8a, equipment operation is performed according to equipment operation information "2" corresponding to "002". Similarly, in step [7], equipment operation according to equipment operation information "1" is executed in response to product instruction information "002", and in step [8], equipment operation according to equipment operation information "2" is executed. The operating equipment is executed.

[0007] FIG. 9 shows an ID diagram used in a conventional production system that uses ID tags to manage production lines.
FIG. 2 is a block diagram showing the configuration of information recorded on a tag. Of these, FIG. 9a shows the ID tag having the product instruction data "002", and FIG. 9a shows the recording state of the ID tag having the product instruction data "024". . All of these indicate the final specifications of the product, which is the most commonly used product instruction information.

[0008]

[Problem to be solved by the invention] By the way, the development of technology and changes in fashion in recent years have been rapid, and for this reason,
Producers are being forced to change the operation of production line equipment in response to these changes. This also applies to a production system using ID tags that simultaneously produces multiple types of products, but in this case, by changing the recorded contents of the conversion table 19 in the conversion device 18 included in the equipment controller 17. It is possible to change the operation of equipment on the production line. That is, as shown in FIG. 7, when changing the equipment operation of the production line, the administrator operates the data change device 20 to rewrite the recorded contents of the conversion table 19 in the conversion device 18. Ta.

However, even if the number of steps is small, if the number of steps is large, the effort required to rewrite the conversion table 19 becomes enormous. Moreover, as the structure of the product becomes more complex, the number of steps inevitably increases.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a production system that can easily change the operation of equipment.

[0011]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the production system according to the present invention uses tag data that reads tag data of ID tags attached to products that are sequentially moved by a transportation device. a reader, a converter that converts the tag data read by the tag data reader into corresponding equipment operation information based on preset pattern information (conversion table), and a converter that converts the tag data read by the tag data reader into corresponding equipment operation information based on the equipment operation information. In a production system including an equipment controller that controls predetermined equipment, the tag data includes a product instruction data recording area in which product instruction data is recorded, and rewriting data indicating rewriting contents of a conversion table. and a determination data recording area in which determination data for determining the presence or absence of rewrite data in the rewrite data recording area is recorded, and the conversion device converts the conversion table when the determination data is detected. It is characterized by including a rewriting device that rewrites in accordance with the rewriting data, and controlling equipment corresponding to the rewritten conversion table.

0012

[Operation] In the production system according to the present invention having the above configuration, the tag data of the ID tag attached to the product is read by the tag data reading device, and the identification data is stored in the identification data recording area in the tag data. If there is, the conversion table in the conversion device is rewritten by the rewriting device based on the contents of the rewriting data recorded in the rewriting data recording area, and the equipment based on the rewritten conversion table is An action is taken.

[0013]

Embodiment FIG. 1 is a diagram showing an embodiment of a production system according to the present invention. Note that the same components as those in the conventional example are given the same reference numerals and explanations are omitted.

A feature of this production system is that the conversion device 18 in the equipment controller 17 includes a rewriting device 21 that rewrites the conversion table 19 in the conversion device 18.
It is that it includes.

Of these, FIG. 2 is a diagram showing the structure of the recorded contents of the barcode 14 (ID tag) used in the first embodiment of this system. Further, FIG. 3 shows a conversion table rewritten using the barcode shown in FIG. 2. The first embodiment describes a case where new equipment operations are added to all processes of the production system when a new product is introduced into the production system.

Now, if we compare the conventional conversion table shown in FIG. 8 with the conversion table shown in FIG. It can be seen that the number of product instruction information "025" is increasing. Conventionally, in order to add this "025",
The administrator who manages this system had to add information regarding "025" one by one to the contents of the conversion table for all processes within the production system. However, in this embodiment, the barcode (
By attaching an ID tag) to the product 11, the conversion table can be easily rewritten. That is, the ID tag used in this embodiment as shown in FIG. 2 has a product instruction data recording area 14a in which product instruction data is recorded, a discrimination data recording area 14b in which discrimination data is recorded, and
It has a conversion table rewriting data recording area 14c in which conversion table rewriting data is recorded.

Therefore, when the barcode reader 15 reads the barcode 14, if information indicating that the conversion table needs to be changed is recorded in the discrimination data recording area 14b, then Data recording area 14c is read. Then, the rewriting device 21 operates, and the conversion table 19 in the conversion device 18 is rewritten based on the conversion table rewriting data recorded in the conversion table rewriting data recording area 14c. In this way, new equipment operations are added to the new product "025" in each process.

FIG. 4 is a diagram showing the structure of the recorded contents of the barcode 14 (ID tag) used in the second embodiment of this system. Furthermore, FIG. 5 shows the conversion table 19 rewritten using the barcode shown in FIG. The second embodiment describes a case where a part of the production system is changed in order to improve the manufactured product.

In the second embodiment, since existing products flow through the line, there is no change in product instruction data. Therefore, the product instruction data recording area 14a is unchanged from the existing one. This is a major difference from the first embodiment in which changes are made to the product instruction data recording area 14a in order to handle new products. Further, this embodiment differs from the first embodiment in that a portion of the discrimination data recording area 14b and the conversion table rewriting data recording area 14c are different.

FIG. 5 shows a conversion table rewritten using the bar code shown in FIG. Comparing this with the conversion table of FIG. 8, it can be seen that in step [8], the equipment operation information for product instruction information "002" is different. This is because information instructing to change the conversion table in step [8] is recorded in the barcode discrimination data recording area 14b shown in FIG. At the position of step [8],
This is because information indicating that the equipment operation information is to be changed to "4" is recorded. Therefore, only the equipment operation information for product "002" in process [8] of the entire production system can be changed.

FIG. 6 is a flowchart showing the operation flow of the production system according to the present invention. First S101
The tag data is read at the step. This tag data is read by the reading device 15. and,
It is determined in S102 whether or not discrimination data exists in the discrimination data recording area 14b of this ID tag. If the discrimination data does not exist, the process proceeds to S103, where the product instruction data in the product instruction data recording area 14a is read, and in S104, the product instruction information is converted to equipment operation information based on the unchanged conversion table. Then, in S105, equipment operations corresponding to the product are performed.

On the other hand, in S102, when the discrimination data is detected from the discrimination data recording area 14b of the ID tag, in S111, the conversion table is rewritten from the conversion table rewriting data recording area 14c according to the discrimination data. data is read. Next, in S112, the conversion table is rewritten, and this rewriting is performed by the rewriting device 21. Then, the product instruction data is read in S113, data conversion is performed using a new conversion table in S114, and equipment operation is performed based on the new conversion table in S115. therefore,
In the case of the production system according to the present invention, it is possible to rewrite all the conversion tables in the production system by simply passing one product tagged with discrimination data and conversion table rewriting data. For this reason, at the time of creating this production system, the rewriting device 21 is simply installed in the conversion device 18 in the equipment controller 17, and from then on, whenever a new product or improved product is developed, it can be adapted to the new product or improved product. By attaching an ID tag to the product, the conversion table can be easily rewritten, and processing corresponding to the new product can be easily performed.

[0023]

[Effects of the Invention] As described above, in the production system of the present invention, when it is desired to change the operation of equipment for a product, it is possible to easily change the equipment operation, thereby making it possible to make new changes in accordance with the trends of the world. It is possible to realize a production line that can supply products and improved products.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a specific configuration of an embodiment of a production system according to the present invention.

FIG. 2 is a diagram showing the recorded contents of a barcode used in the first embodiment of the production system shown in FIG. 1;

FIG. 3 is a diagram showing recorded contents of a conversion table whose contents have been changed by the barcode shown in FIG. 2;

FIG. 4 is a diagram showing the recorded contents of a barcode used in the second embodiment of the production system shown in FIG. 1;

FIG. 5 is a diagram showing recorded contents of a conversion table whose contents have been changed by the barcode shown in FIG. 4;

FIG. 6 is a flowchart showing the flow of operations of the production system in the present invention.

FIG. 7 is a diagram showing a specific configuration of a conventional production system using ID tags.

FIG. 8 is a diagram showing an example of the contents of a conversion table used in a conventional production system using ID tags.

FIG. 9 is a diagram showing recorded contents of an ID tag in a conventional example.

[Explanation of symbols]

11 Products 12 Transport device 14 ID tag 14a Product instruction data recording area 14b Discrimination data recording area 14c Data recording area for rewriting conversion table 15 Reading device 17 Equipment controller 18 Conversion device 19 Conversion table 21　Rewriting device

Claims (1)

[Claims] Claim 1: A transport device that sequentially moves products with ID tags attached, a tag data reader that reads tag data of the ID tags attached to the products, and a tag data reader that reads tag data of the ID tags attached to the products, based on preset pattern information (conversion table). A production system including a conversion device that converts tag data read by the tag data reading device into corresponding equipment operation information, and an equipment controller that controls predetermined equipment on the line based on the equipment operation information, The tag data includes a product instruction data recording area where product instruction data is recorded, a rewriting data recording area where rewriting data indicating the content of rewriting the conversion table is recorded, and this rewriting data recording area. a discrimination data recording area in which discrimination data for discriminating the presence or absence of the rewriting data is recorded, and when the discrimination data is detected, the conversion device converts the conversion table into the rewriting data. 1. A production system comprising a rewriting device that rewrites data in accordance with an ID tag, and when detecting discrimination data in an ID tag, controls equipment corresponding to the rewritten conversion table.