KR100361063B1 - system for point of production made use of two dimension bar code - Google Patents

Abstract

The present invention relates to a production point management system using a two-dimensional bar code, comprising: a host computer that manages the computerized processing of an entire manufacturer: connected to the host computer, and including market prediction, cost calculation, production planning, production definition, process definition, and personnel. ㆍ Material management ㆍ Corporate resource planning server containing various information about purchasing, distribution, etc .: Connected to the enterprise resource planning server, manufacturing to execute management tasks such as resource allocation, operation planning, production dispatch, process management, facility management, etc. Execution system server: A production point server connected to the production execution system server, which immediately outputs data on the production, process, logistics, equipment, etc. generated at the production manufacturing site at the time of occurrence: and is delivered from the production point server. For recording two-dimensional barcodes in which information about the model name of the product to be put into the production line according to the information is recorded A two-dimensional barcode printer for outputting a plurality of two-dimensional barcode scanners for reading a two-dimensional barcode of a product having a two-dimensional barcode recording paper outputted from the two-dimensional barcode printer, and reading a defective code when a defect occurs; It consists of a terminal that is displayed so that the producer and the administrator can recognize by combining the defective code recognized through the two-dimensional barcode scanner, each of them is connected to a local area network, the input efficiency is improved by simplifying data input, The ability to work without a slip or a daily report is improved, the relevant information can be provided immediately by the data input promptly, the quick response to urgent orders is possible, and the accuracy of analysis data for planning and forecasting is improved. Excellent effect on processing tasks.

Description

Production point management system using two-dimensional bar code {system for point of production made use of two dimension bar code}

The present invention relates to a production time management system using a two-dimensional bar code, can check and control the working conditions in real time in the production site of the manufacturer, by applying the data generated in real time at the production site in conjunction with the enterprise resource management server The present invention relates to a production point management system using a two-dimensional bar code that can be processed and used in real time to generate information from a manufacturer's site using a wireless terminal in a remote environment.

In general, in the enterprise, the advancement of the information system is performed by processing various types of information generated and collected in each field to a computer, processing, processing, and transmitting them according to the purpose, and collecting information in real time is an important problem. In addition to preventing the loss and error through automatic input of information, it is an important issue.

That is, as the serial number and operation test history of each model and the repair history according to the defect are recorded by hand, it is almost impossible to collect information in real time, and the analysis of the defect is performed after a certain period of time.

In addition, as described above, input of information using a computer keyboard, an optical card reader (OCR) method, a magnetic card method, etc., which are used to eliminate inconvenience caused by handwriting, is essential since information is transferred between a person and a machine. It requires a person to input and has a lot of difficulties in preventing error in information input and has a disadvantage of slow input speed.

Therefore, in order to solve such a problem, an input means using a one-dimensional barcode has been introduced.

One-dimensional barcodes have excellent environmental properties such as magnetic field, temperature and humidity, and can be prepared with non-contact readings and very low-cost labels, and are easy to use when collecting information on site, and point-of-sale management in supermarkets and department stores. Sales), the manufacturing industry of products and parts, is established as a point of production (POP) system, attracting attention as an online means of collecting information.

That is, the one-dimensional bar code performing the function described above is represented by a specific combination of a bar and a space so that letters, numbers, and symbols can be decoded through a mechanism called a barcode reader.

For example, all information previously processed by a computer, such as a product ID number (model name, manufacturing number, etc.), production number, order code, and price, can be input by one-dimensional bar code.

In other words, data consisting of a combination of BAR and SPACE is read by a barcode reader, and the data is translated into '0.9', 'A-Z', '' by a translator called a decoder. It changes to ',' $ ',' / ',' + ','% ',' SPACE 'and so on through the system interface RS-232C (or RS-422) according to the specific specification required by the computer. It is entered into the main computer.

Therefore, the most important reason for selecting the one-dimensional barcode as the input means as described above is because of the following advantages.

First, it is an advantage of minimizing the error rate when entering data.

Citing the US Department of Defense's LOGMARS PROJECT report, only 4 errors occurred when entering 1,266,444 one-dimensional barcodes, confirming that 99.9997% of the correct input was superior to any existing data input device.

For reference, it is known that an error rate of 1/300 (99.7%) and an OCR of 1 / 10,000 (99.99%) is used for keyboard input.

Second is the advantage of simplifying data entry.

Inputs one or more letters, words, codes, etc. in a single step. The input method uses a PEN SCANNER or GUN SCANNER made like a PEN.

Third, it is possible to read even when the one-dimensional barcode is damaged in the horizontal direction.

One-dimensional barcodes have a certain height and can be entered even if they are damaged up to 95% of the height.

The reason is that one-dimensional barcodes are read horizontally.

For reference, in case of OCR, input is impossible even with 1% damage in all directions.

However, although the input method using the one-dimensional barcode as described above has various advantages, it has the following fatal disadvantages.

First, one-dimensional barcodes have limitations in data representation, which is a problem with symbolology.

In other words, as a shipping package, various contents such as lot number, purchase order number, recipient, quantity, and other information are represented by a barcode and attached to or accompanied by a lot of data. It is impossible to express.

Second, the one-dimensional bar code is displayed in a combination of thin and wide bar and space, the information is written only in one horizontal direction, there is no information in the height direction of the bar.

That is, the one-dimensional barcode is used to arrange a plurality of barcodes and to lengthen the barcode to the side when increasing the amount of data, but the printing area becomes large or the reading operation becomes difficult.

Third, since one-dimensional barcodes have a small data recording capacity, they are frequently used as recognition codes of goods, and more detailed information needs to be output online or have a database of all the information in advance.

Fourth, error correction is impossible.

One-dimensional barcodes can detect errors but cannot correct them.

That is, one-dimensional barcodes are fragile and contaminated with labels, and therefore, it is impossible to correct an error corresponding to the use environment.

Therefore, the present invention has been devised to solve the problems described above, by using the two-dimensional bar code to generate all the information on the production process logistics equipment, etc. generated at the production manufacturing site immediately at the time of occurrence of the data of the field situation unit work System (production / sales / process / facility maintenance management, etc.), and data such as work orders / plan changes from the upper system to the site, thereby avoiding the management of manufacturing sites from dependence on experience / forecast / manual work. The purpose is to provide a production point management system using two-dimensional bar code that manages the situation of the production site with scientific numerical data and facilitates the management of factories and subcontractors through the Internet even at remote sites.

Production time management system using a two-dimensional bar code according to the present invention for achieving the above object: a host computer that manages the computer processing of the whole manufacturer: connected to the host computer, the market prediction, cost calculation, production planning, production definition ㆍ Process definition, personnel, material management ㆍ Enterprise resource planning server containing various information about purchasing, distribution, etc .: Connected to the enterprise resource planning server, management of resource allocation, operation plan, production shipment, process management, facility management, etc. A production execution server for executing a job; and a production execution server connected to the production execution system server and immediately producing data on production, process, logistics, equipment, etc. generated at the production manufacturing site at the time of generation: Recorded information about the model name of the product to be put into the production line according to the information transmitted from the server A two-dimensional barcode printer for outputting a two-dimensional bar code recording paper; : It consists of a terminal displayed to be recognized by the producer and the administrator by combining the defective code recognized by the two-dimensional barcode scanner when the failure occurs, each of which is characterized in that it is connected to the local area network.

1 is an exemplary view showing a conventional one-dimensional barcode,

2 is an exemplary view showing a stacked two-dimensional bar code according to the present invention;

3 is an exemplary view showing a matrix type two-dimensional barcode according to the present invention;

Figure 4 shows a production time management system using a two-dimensional bar code according to the present invention

Diagram,

5 is a site in the production time management system using a two-dimensional barcode according to the present invention

Diagram showing a terminal and a production point terminal,

6 is a work of the production time management system using a two-dimensional bar code according to the present invention

Configuration diagram showing the processing situation,

7 is a production time management system using a two-dimensional bar code according to the present invention

An illustration showing the state applied to the goods receipt process,

8 is a production point management system using a two-dimensional bar code according to the present invention

Exemplary diagram showing a state applied to the receiving process.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

Figure 2 is an exemplary view showing a stacked two-dimensional bar code according to the present invention, Figure 3 is an exemplary view showing a matrix two-dimensional bar code according to the present invention, Figure 4 is a production time management using a two-dimensional bar code according to the present invention 5 is a block diagram showing a system, and FIG. 5 is a block diagram showing a site and a production point terminal in a production point management system using a two-dimensional bar code according to the present invention, and FIG. 6 is a production point management using a two-dimensional bar code according to the present invention. FIG. 7 is an exemplary view showing a state in which a production time management system using a two-dimensional barcode according to the present invention is applied to a production receipt process, and FIG. 8 is a two-dimensional barcode according to the present invention. This is an exemplary diagram showing the state of applying the production point management system using the material receipt process.

As shown in these figures, the production time management system using the two-dimensional bar code according to the present invention is a host computer that manages the computerized processing of the whole manufacturer: connected to the host computer, the market prediction, cost calculation, production planning, production A corporate resource planning server containing information on definitions, process definitions, personnel, material management, purchasing, distribution, etc., which is connected to the enterprise resource planning server and includes resource allocation, operation planning, production shipment, process management, and facility management. A production execution system server which executes management tasks; a production execution server connected to the production execution system server and immediately producing data on the production, process, logistics, equipment, etc. generated at the production manufacturing site at the time of occurrence: Recorded information about the model name of the product put into the production line according to the information transmitted from the production point server A two-dimensional barcode printer for outputting a two-dimensional bar code recording paper; It consists of a terminal which is displayed so that a producer and a manager can recognize by combining the defect code recognized by the two-dimensional barcode scanner when a failure occurs, each of which is connected to a local area network.

Here, the two-dimensional bar code is made of a stacked bar code that accumulates in the longitudinal direction and displays the information in the vertical direction.

In addition, the two-dimensional bar code is a matrix bar code that represents a display area of the data in a black and white mosaic pattern, and reads and deciphers the angle and size of the pattern.

On the other hand, the production time server includes a wireless terminal to transmit and receive data remotely by making a database of the production process from the production time server to the production site, the wireless terminal is capable of data communication and Internet access, It consists of a smart phone with a personal information management function.

Here, in the present invention, a two-dimensional bar code is used as an input means for the information on the defect.

In other words, the two-dimensional barcode is a barcode display method having information in two-dimensional directions (vertical and horizontal directions). A two-dimensional barcode is a barcode obtained by expressing a one-dimensional barcode in a compressed or mosaic pattern and integrating data at a high density. It is the next generation labeling technique that enables high information and various information processing functions.

In other words, the two-dimensional barcode is flattened by arranging data in both axes (X direction and Y direction).

Here, the two-dimensional barcode as described above is largely divided into a stack type barcode and a matrix type barcode.

The former, stacked bar code is a bar code that accumulates a one-dimensional bar code in the longitudinal direction and displays information in a vertical direction. The latter matrix bar code is a bar code in which the information is displayed in a horizontal and vertical mosaic of black and white elements having the same width.

That is, the stacked bar code is a structure in which a plurality of layers are stacked vertically by reducing the one-dimensional bar code. The symbol is the same as the one-dimensional bar code and the bar and bar are displayed in the same way as the one-dimensional bar code. To identify the columns, each column has a start and stop code that reads all the columns and decodes them step by step, regardless of which column it reads from.

The number of columns is fixed and free, which increases the reliability of reading by creating check digits for each column.

The scanner has a CCD AREA sensor method and a laser method, and one-dimensional barcode and reading function are also available.

On the other hand, the matrix-type bar code is a structure in which the display area of the data is represented by black and white hatch patterns, and the angle and size of the patterns are read and decoded. The basic unit is a black pattern, which is generally displayed in a square, and the data Since the code is converted to binary and the pattern is displayed, special code conversion table and reference table on the scanner side are unnecessary and easy to read.

The presence or absence of a matrix center cell is a criterion, and the width of the thin bar and the thick bar is not a criterion. Therefore, the print quality may be somewhat rough.

The CCD method is common for scanners. There are only a few types that can be read with one-dimensional barcodes.

It has a special pattern (L-shaped guide cell, cut out symbol, etc.) for direction recognition of the pattern and enables 360-degree omnidirectional reading and high speed reading.

The two-dimensional barcode as described above has the following characteristics.

First, it has a large amount of data.

The largest feature is that the data volume that can be coded is large, that is, most of the two-dimensional barcodes have a capacity of about 2,000 bytes, and one-dimensional barcodes are used as identification codes. Can be used.

Second, high density printing is possible.

Compared with one-dimensional barcodes, two-dimensional barcodes can be densified to 1/10 to 1/45 to express the same number of rows, and marking at very small spaces is also possible.

Since the line width of the bar is not specified like the one-dimensional bar code according to the code type, it is possible to mark very small by using a printer having a high resolution head.

It is also possible to mark directly on semiconductor siliconware and electronic components using a laser marking device.

3. Accurate reading is possible with error detection and correction capability.

Special mathematical method of error restoration makes it possible to read correctly even if the print quality is bad or part of the code is damaged or damaged.

4. 360 degree omnidirectional reading is possible.

Matrix type two-dimensional barcodes can be read in 360-degree directions because the scanner has many types of CCD AREA senses, so that when the reader reads the code, it stands up on the side and each code has a structure for recognizing each angle.

Reading in 360-degree directions enables reading without rotating an object or a scanner displaying a two-dimensional bar code, thereby realizing work efficiency.

Therefore, the application of the two-dimensional bar code having the characteristics as described above has the following advantages.

When the two-dimensional bar code is viewed as a digital information recording medium, the bit unit price and the information package unit price are low.

In other words, it is possible to reduce the unit cost per character by printing and marking on paper and plastic or directly printing or marking on an object.

There are some cheaper recording media when comparing the printing cost per side, but if you compare the set of necessary information, one label for barcode, one card for card and one disk for disk It is cheaper.

Since two-dimensional barcodes are often printed, they cannot be reused, but the label cost is low, so they can be reattached or superimposed if necessary.

The method of using the two-dimensional bar code records all necessary information such as the object itself in a machine-readable form and records the movement of goods, transfer of ownership, inventory, and packaging at the point of sale and point of delivery. The point of how to transfer and point of how can be distinguished, and the spot can be confirmed on-the-spot in the field.

In addition, using two-dimensional barcodes as mobile data files, the contents of documents can be recorded as digital information that can be read by computers, even for human-readable characters and images, which is accurate when re-entering at different places, at different times, or at different times. Achieve speed up and productivity.

By introducing two-dimensional barcodes as described above, an on-site off-line system with low dedicated costs can be constructed.

Hereinafter, the operation and effect on the production time management system to which the two-dimensional barcode as described above is applied.

1. The work process card for the work item is distributed and delivered by work process.

2. Recognize two-dimensional barcode of the work process card by work order.

3. Enter the part of the task that needs to be input separately.

4. The data collected at the point of production terminal is communicated to the data repeater via RS-485.

5. It prevents many lines from going to the production server and buffers the downstream production terminal and production server for fast and efficient data communication.

6. RS-232C is used between data relay and production server.

7. As a data repeater, the buffering role between the manufacturing execution system server and the production point server, as well as the distributed processing of the data, is primarily for the purpose of history storage.

8. When the production point server is connected on the Ethernet, it communicates with the production execution system server through the communication protocol (TCP / IP).

9. Supervise the production management for the production point management system, mainly focus on production monitoring and performance analysis, and exchange data in the same network with the enterprise resource planning server.

10. The enterprise resource planning server and the manufacturing execution system server are located on the same line of Ethernet by the communication protocol (TCP / IP), so that the program or data are completely compatible, and the program is executed by the security level on the client. Help drive

11. Enterprise Resource Planning Server to support other servers or clients on the entire network.

The present invention consisting of the flow as described above will be described in detail for each process.

First, the two-dimensional barcode is printed on the upper part of the work process card, and the operator directly inputs the item, the defective factor, the non-operational factor into the production point terminal, and the production results are read by the two-dimensional barcode of the work process card at the production point terminal. It is possible to collect directly, and input defect quantity and factor after the end of the work by using the terminal at the time of production, monitor the progress and operation status by process in the communication server, and process the input status of the manual input and the barcode reader separately. Priority is given to use, and the normal processing is induced by keeping a history of the input data (normal, canceled, confirmed, etc.).

That is, the process-specific operation plan as described above will be described through a series of embodiments of the manufacturer.

Molding / Assembly Process

1. Accept work process card and recognize barcode → Wait for work

2. Start work → Barcode recognition of work process card and press start button

3. End of work → Press End button → Quantity automatically processed by mold unit → Runner quantity

Automatic processing

4. Enter defective quantity → Enter only waste quantity and press OK button.

5. Move to work process with work process card and take over → Logistics

Confirm

6. Take over from the assembly process to the coating process in the washing station.

Coating process

1. Process start work when inputting waiting work

2. Display the number of coatings on the item at the start of work → Check the displayed quantity

Start of work

3. Take over in the rewaxing room after coating work → process by casting

Casting

1. Recognize barcodes on casting office computer by inserting work process card → Start work

2. Change material by division by melting charge → Lot No.

Divided into work process card division part number and division identification code by change

3. Process input contents of charge → Lot tracking contrast → Confirm hit number

4. After completion of work, move to desalination zone

Desalination / Cutting Process

1. Recognition of the completion of the spinning process is recognized upon receipt of the cutting process.

2. Recognition of work process card and employee's card when receiving for cutting work

3. Waiting for the post-treatment work after waiting for sand / alkali / calibration

Input from

4. Bogie waiting place is where to wait for input by post-treatment (belt / thinning / high speed fan)

Post-treatment (belt / sand / heat treatment / acid treatment / sand / intermediate inspection) process

1. When moving the trolley for work in the trolley waiting area,

Recognize employee ID card and detect belonging process. The quantity of work is processed automatically.

2. Check the completion of rework / inspection in the intermediate inspection → detect rework quantity

A thorough analysis is required to verify logistics for multi-process work processes.

3. When the product has been checked for completion by inspection, the barcode of the finished product is confirmed on the work process card.

Label

4. When the barcode label is issued, the production records of the goods can be registered in the database of the packaging group.

Performance registration

Outsourcing

1. Outsourced waiting processing by barcode recognition of work process card for outsourcing work

2. Recognition of outsourcing bar code cards upon receipt of target goods from outsourcing → Outsourcing

3. Outsourcing after outsourcing work → Recognize outsourcing receipt by processing same as before

4. Register the quantity that was processed badly during outsourcing work

Machining Process

1. Recognition of work process card barcode to be input → Recognition of work start

2. Treatment after work completion is the same as other processes.

Non-Destructive / X-Ray / Non-Ferrous Inspection Process

1. Work process card is processed by computer, and inspection items are processed together.

2. Process graphs for basic quality control by processing inspection items

(Histogram, Pareto, Transition, etc.)

3. The inspection results are automatically processed for the inspection items.

4. The start, completion, and failure treatment of the process are the same as the other processes.

Finished Product Identification / Packing Process

1. Attach item identification and finished product confirmation by barcode label

2. When issuing the confirmation of the finished product, the output data is automatically packaged together with the registration of the goods.

process

3. The packaging process can be printed only on the finished products.

4. Register the location information with the issuance of the packaging label and use the data during inventory inspection

Production receipt / release process

Wearing

1.Recognize barcode on box and finished product confirmation label → Check quantity and items

2. Enter loading location → Register inventory and location

Inventory

1.Download the list of due diligence to Handy Terminal (integrated scanner)

2. Recognition and confirmation of per-box or finished product confirmation label (item, quantity)

3. Validation data registration and difference table processing

release

1. Download the shipping work order to Handy Terminal → Picking the target items and

Car preparation

2. Confirmed by barcode label recognition when picking details at shipment

3. Automatic printing of transaction details upon completion of shipment

Material and Outsourcing

1. Download to the Handy Terminal

2. Start checking the inspection target → Defect check → Issue receipt confirmation

3. Loading in the position for production input by the first in, first out method

4. Final inspection → Defective processing → Computer processing → Pareto diagram for each defect cause

Using the two-dimensional barcode according to the present invention through each process as described above

Production point management system is implemented.

As described above, the production time management system using the two-dimensional bar code according to the present invention has the following effects.

First, the efficiency of input is improved by simplifying data input, and the ability to work without a slip or daily report can be provided promptly. The accuracy of analytical data on forecasting, forecasting, etc. is improved, which has an excellent effect on data processing.

Second, it is possible to reduce the work in process by checking the work every minute, improve the degree of process planning for progress information, and improve the operation rate and minimize the failure rate by grasping non-operation factors and defects. There is.

Third, it is possible to improve the speed and accuracy of collection work, and to easily track lot number, strengthen lot-no. Management, and prevent the collection and delivery of shorts and duplex goods. Excellent effect in the sector.

Fourth, it can secure competitive advantage by using information technology, respond quickly to changes in corporate environment, establish production management by introducing production point management system, and improve profitability by reducing costs, Efficient use of management indicators on targets and performances is possible, and it is possible to prevent proper stock maintenance and product out-of-stocks, which greatly enhances external competitiveness.

Claims (5)

The host computer responsible for the entire manufacturer's computational process: The enterprise resource planning server, which is connected to the host computer and contains various information about market prediction, cost calculation, production plan, production definition, process definition, personnel, material management, purchasing, distribution, etc .: A production execution system server connected to the enterprise resource planning server and executing management tasks such as resource allocation, operation planning, production shipment, process management, facility management, and the like: A production time server connected to the manufacturing execution system server and immediately converting all kinds of information on production, process, logistics, equipment, etc. generated at the production manufacturing site from the time of occurrence: A two-dimensional bar code printer for outputting a two-dimensional bar code recording paper on which information about a model name of a product to be put into a production line according to the information transmitted from the production point server is recorded; A plurality of two-dimensional barcode scanners for reading two-dimensional barcodes of a product having a two-dimensional barcode recording paper outputted from the two-dimensional barcode printer and reading a defective code when a defect occurs; It consists of a terminal that is displayed so that the producer and the administrator can recognize by combining the defect code recognized through the two-dimensional barcode scanner when a defect occurs, Each of these is a production point management system using a two-dimensional bar code, characterized in that the configuration is connected to the local area network. The system of claim 1, wherein the two-dimensional bar code is a stacked bar code that accumulates in a longitudinal direction and displays information in a vertical direction. The method of claim 1, wherein the two-dimensional barcode is represented by a matrix barcode that represents a display area of data in a black and white mosaic pattern and reads and deciphers the angle and size of the pattern. system. According to claim 1, Production time management system using a two-dimensional bar code, characterized in that it comprises a wireless terminal capable of transmitting and receiving to a remote location by making a database of information on the production process generated from the production point server from the production point server. 5. The production point management system according to claim 4, wherein the wireless terminal is configured as a smart phone having data communication and internet access and equipped with a personal information management function.