KR101691450B1 - Rfid tag system with heat resistant - Google Patents

Abstract

The present invention relates to an electronic tag system having heat resistance, The electronic tag system having heat resistance includes a first RFID tag attached to a ladle for steelmaking, a second RFID tag attached to a crane for transporting the ladle for steelmaking, a plurality of RFID readers adjacent to the crane to monitor the location of the ladle, a hub for collecting the data of the plurality of RFID readers, a location recognition server for recognizing the location of the ladle and the crane by using the hub data, and a converter management server for giving a work instruction of the crane through communication with the location recognition server. So, real-time monitoring can be performed.

Description

TECHNICAL FIELD [0001] The present invention relates to an electronic tag system having heat resistance,

The present invention relates to an electronic tag system having heat resistance, and more particularly, to an electronic tag system usable in a high temperature environment.

Recently, the use of recognition technology using radio frequency is gradually increasing.

In particular, electronic tag (RFID) consists of a transponder chip and an antenna. When the electronic tag approaches the periphery of a reader that radiates a radio wave of a specific frequency, the antenna reacts to a specific frequency to activate the chip, and information in the activated chip is transmitted to the reader to perform communication.

When such an electronic tag recognition technology is utilized, communication is possible even at a close position without requiring direct contact or scanning, so that it is convenient to use and has a semi-permanent life.

1 is a conceptual diagram for explaining a conventional electronic tag.

An antenna 12 is formed on a body 10 through a copper wire winding and a transponder chip 14 connected to the antenna 12 is mounted on the body 12 to manufacture an electronic tag .

The transponder chip 14 is manufactured in the form of a COB (Chip on Board), and both sides of the chip are provided with connection portions to which both ends of the antenna 12 are connected.

The electronic tag is used for various purposes depending on the characteristics of the body 10.

However, since the conventional electronic tag uses the body 10 made of plastic or synthetic resin, it is vulnerable to heat and can not be used in a high temperature environment.

In addition, such RFID is applied in various industrial fields. However, there is a demand for remote recognition in a place where it is not possible to install 100% batch recognition of input and output items, signal amplification function for real time recognition and recognition coverage expansion through fast recognition speed, multi antenna control, RFID reader and antenna. In the case of global business, it is necessary to change the software without changing the hardware in order to obtain the radio certification of the country, because the interference of the surrounding environment factors and the distance between the reader and the antenna are too far away to improve the recognition rate due to the cable loss of the signal. It is necessary to read a large number of tags at a high speed in the case of a postal business, and it is difficult to support a dense mode environment.

In addition, there are many market demands for miniaturization, weight reduction and low cost of reader. In order to solve this problem, various companies develop and sell RFID reader chips. However, since the price per chip is high and consumption current is high, it is applied to portable RFID reader and mobile RFID It is a difficult situation.

Especially, in the steel industry, there is a high risk of operation, and there is a need for full automation for the safety of the workers, and excessive investment costs are incurred due to the introduction of expensive foreign products.

(Patent Document 1) Patent Registration No. 10-1504609 (Patent Document 2) Registration Practical Utility Model No. 20-0415667 (Patent Document 3) Patent Registration No. 10-0843285

This type of reader technology is about 80% of the UHF band fixed reader technology compared to advanced countries, and fixed and mobile RFID modules are mass-produced. However, the UHF RFID litter chip is not applicable to products because of its poor performance. Recently, discussions on the standardization of RFID technology are underway.

Although such active technology development has been carried out, an RFID system suitable for a steel manufacturing environment has not been put to practical use because of its high temperature characteristics.

The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a high-temperature transportation device tracking system for a steel manufacturing process using an RFID tag that can be recognized in a high temperature environment, Provided is a heat-resistant electronic tag system capable of improving productivity of a facility and increasing value-added, and real-time monitoring using existing facilities without any additional equipment change.

A heat-resistant electronic tag system according to the present invention includes a first RFID tag attached to a steel ladle, a second RFID tag attached to a crane for transporting steel ladle ladle, A hub for collecting data of a plurality of RFID readers, a position recognition server for recognizing the position of the ladle and the crane using the hub data, The electronic tag system according to claim 1,

A crane user terminal for communicating with the location recognition server, and a crane tag reader and a reader antenna attached to the crane.

The first RFID tag uses a passive type metal tag of 900 MHz band, and has a recognition distance of 10 to 1000 cm, a recognition speed of 200 words / second, and a reception sensitivity of -90 to 110 dBm do.

The first RFID tag is attached to lugs mounted on both sides of the ladle body.

And the RFID reader is disposed in a crane work space.

The location recognition server includes a workspace management module for managing information related to a work space of the crane, a ladle management module for managing ladle movement through the first RFID, a crane management module for managing the movement of the crane through the second RFID, And a communication module for transmitting the identification result of the location module to the management server and the crane driver, and a communication module for transmitting the identification result of the location identification module to the management server and the crane driver through the ladle management module and the crane management module, .

As described above, the present invention can realize a high-temperature transportation device tracking system of a steel manufacturing process using an RFID tag that can be recognized in a high-temperature environment. In addition, it can increase the productivity and value-added of the manufacturing and production facilities of the high-risk environment as well as the steel industry, and enables real-time monitoring using existing facilities without any additional equipment changes.

1 is a block diagram of an electronic tag system having heat resistance according to an embodiment of the present invention;
2 is a conceptual diagram for explaining a tag attaching position in a ladle according to an embodiment;
3 is a block diagram of a location-aware server according to an embodiment;
4 is an image of a management screen by the daunting location recognition server according to an embodiment;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

It is to be clarified that the division of components in this specification is merely a division by main function which each component is responsible for. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner. Accordingly, the presence or absence of each component described in this specification should be interpreted as a function. For this reason, it is clarified that the heat-resistant electronic tag system of the present invention can be varied within the scope of achieving the object of the present invention.

1 is a block diagram of an electronic tag system having heat resistance according to an embodiment of the present invention. FIG. 2 is a conceptual diagram for explaining a tag attaching position in a ladle according to an embodiment, FIG. 3 is a block diagram of a position recognition server according to an embodiment, and FIG. It is an image of the screen.

1 to 4, the electronic tag system having heat resistance according to the present embodiment includes a first RFID tag 100 attached to the steelmaking ladle 10, a first RFID tag 100 attached to the steelmaking ladle 10, A second RFID tag 200 attached to the crane 20 and a plurality of RFID readers 300 located around the crane 20 to grasp the movement of the ladle 10 and the crane 20, A hub 400 for collecting data of the RFID reader 300, a position recognition server 500 for recognizing the position of the ladle 10 and the cranes 20 using hub data, And a converter management server 600 that gives a work instruction of the cranes 20 through communication. The mobile terminal further includes a crane user terminal (700) for communicating with the location recognition server (500). The crane further includes a crane tag reader and a reader antenna.

It is preferable to use a passive type metal tag of 900 MHz band as the first RFID tag 100. [ It is also packaged in an internal insertion type that can withstand a high temperature environment of 100 to 600 degrees.

Preferably, it is effective that the first RFID tag 100 has a recognition distance of 10 to 1000 cm and a recognition speed of 200 per second. The reception sensitivity is also -90 to 110 dBm, and the supporting standard conformance is EPC class 1, and it is effective to satisfy ISO 18000-6c. It is also desirable to perform AES encryption communication.

Preferably, the first RFID tag 100 is attached to the lug region of the ladle 10.

The ladle 10 includes a circular body as shown in Fig. 2 and a lug mounted on both sides of the circular body. The lug hangs the crane sovereignty, lifts the body, and acts as a hook to move the slag, etc. to the port for receiving it. As a result of examining the temperature of various regions of the ladle 10 as shown in the drawing, the temperature of the G region or the F region, that is, the ladle region, is most effective for tag attachment. In this embodiment, the first RFID tag is attached to the ladle area.

At this time, it is preferable that the first RFID tag 100 is packaged in an inner insertion type that can withstand a high temperature environment. That is, in the ladle 10, the A region is maintained at about 700 degrees, the G region is maintained at about 300 degrees, and the F region is maintained at about 101 degrees. In order to operate the RFID tag at a high temperature of 100 degrees or more, an internal insertion packaging should be performed, and an optimal tag attachment position and a method should be provided.

It is preferable that the first RFID tag 100 is manufactured using a thermo-cyclic material and is formed into a metal insertable form. In addition, it is manufactured by a very small metal tag of 30 mm or less, and is packaged (that is, a metal tag is packaged) in a form of a recognition distance of 50 cm or more and an easy attachment and detachment. Of course, the recognition distance of 5m or more is more effective.

Of course, the body of the first RFID tag 100 is preferably fabricated using a ceramic composite material, and has a patch-type antenna that can be used in a high-temperature metal environment.

The second RFID tag 200 attached to the crane 20 is also preferably used for metal tag packaging for operating in a high temperature environment such as the first RFID tag 100 mentioned above.

It is preferable that a plurality of RFID readers 300 are disposed in the work space of the crane 20.

This enables the movement of the ladle 10 and the crane 20 to be confirmed when the crane 20 raises or lowers the ladle 10. Therefore, it is effective that the RFID reader 300 is located within the working radius of the crane 20. The RFID reader 300 also has a characteristic capable of sensing in a high temperature environment.

The hub 400 manages a plurality of RFID readers 300 and transmits information provided from the RFID readers 300 to an external server.

At this time, the hub 400 amplifies and outputs the provided information, and transmits an external control signal to the RFID interrogator 300 to perform the state and management of the reader.

The location recognition server 500 grasps the location of the ladle 10 and the crane 20 by using the data of the hub and transmits the result to the driver in the transition management server 600 and the driver in the crane 20.

3 and 4, the location recognition server 500 includes a workspace management module 510 for managing information related to a work space of the crane, and a workspace management module 510 for managing movement of the ladle 10 through the first RFID tag 100 A crane management module 530 for managing the movement of the crane 20 through the second RFID tag 200 and a ladder management module 520 for inputting information input from the hub 400, And a location determination module 540 for determining the location of the ladle 10 and the crane 20 via the crane management module 530 and the location determination module 540 to the management server 600 and the crane driver And a communication module 550 for transmitting the data. Of course, it is possible to further include a notification module (not shown) for notifying the danger depending on the position of the ladle 10 and the crane 20.

The converter management server 600 detects the danger through the movement related information of the ladle 10 and the crane 20 from the position recognition server 500 and manages the work instruction of the crane.

Of course, the converter management server 600 can receive data from a plurality of location recognition servers 500, and can manage work of all the factories and lines.

Thus, in the present embodiment, insertion type RFID tag packaging suitable for such a steel manufacturing environment and its mounting position enable recognition in a high temperature environment. In addition, middleware software enables monitoring of facilities as well as control.

Also, there is an advantage that operation and maintenance are smooth and maintenance and operation are facilitated by using a passive tag.

And, it is possible to protect the tag through the robust tag housing at high temperature and dust. In addition, urgent measures can be taken when a device malfunction occurs through an RFID reader, a location recognition server, or the like.

It is also possible to monitor the entire facility without changing existing facilities.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the following claims.

10: Ladle
20: Crane
100, 200: RFID tag
300: RFID reader
400: Hub
500: Location aware server
510: Workspace Management Module
520: Ladder management module
530: Crane Management Module
540: Location module
550: Communication module
600: converter control server
700: crane user terminal

Claims (6)

A heat-resistant electronic tag system includes a first RFID tag that is packaged and attached to a lug mounted on both sides of a body of a steelmaking ladle;
A second RFID tag attached to a crane that feeds steel making ladle;
A plurality of RFID readers disposed within the crane workspace for grasping the movement of the ladle and the crane;
A hub for collecting data of a plurality of RFID readers;
A location recognition server for recognizing the location of the ladle and the crane using the hub data;
A converter management server for giving a work instruction of the crane through communication with the location recognition server; And
A crane user terminal communicating with the location recognition server, and a crane tag reader and a reader antenna attached to the crane,
The first RFID tag uses a passive type metal tag of 900 MHz band, and has a recognition distance of 10 to 1000 cm, a recognition speed of 200 words / second, and a reception sensitivity of -90 to 110 dBm and,
The location recognition server includes a workspace management module for managing information related to a work space of the crane, a ladle management module for managing ladle movement through the first RFID, a crane management module for managing the movement of the crane through the second RFID, And a communication module for transmitting the identification result of the location module to the management server and the crane driver, and a communication module for transmitting the identification result of the location identification module to the management server and the crane driver through the ladle management module and the crane management module, Wherein said electronic tag system has heat resistance.
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