KR20050077329A - Radio frequency identification system - Google Patents

Abstract

The present invention relates to an RF-ID system that provides a data transmission / reception standard between an RF-ID reader and a tag.

The RF-ID system of the present invention includes an RF-ID tag for generating a signal including information providing data for providing information recorded on an IC chip, and an RF-ID reader for obtaining the information of the RF-ID tag. In the RF-ID system, the information providing data includes a start parameter field, a service provider ID field, a service authentication parameter field for recording a service authentication code for authenticating the RF-ID reader, a service start date field, and a service. On the screen, a start time field, an error field indicating whether there is a data transmission error, a continuous field indicating whether the transmission data is continuous, a text authentication parameter field for recording an encrypted text authentication code for additional authentication on the text display, A text field, a text storage area for display, and an encrypted image verification code for additional In an end configured to parameter field, which indicates the end of the lock image authentication parameter field, and the image data storage area of the image field and the data to be displayed on the screen has a technical feature.

Description

RF-ID system {Radio Frequency Identification System}

The present invention is to standardize aspects of data exchanged between an RF-ID tag and an RF-ID reader in order to link RF-ID technology, which has recently been spotlighted as a wireless recognition technology, with communication.

RF-ID system is a wireless recognition system, which has a wide range of applications such as asset tracking / management, access control / security, and transportation in recent years due to advantages such as far-field recognition and superior transparency.

RF-ID systems using radio resources are standardized by radio resources in each country, but have not been standardized due to problems such as duplication with existing radio resources.

Therefore, the work to implement this to the service related to communication has not yet been specified and standardized, and the standardization of the transmission and reception data between the RF-ID tag and the RF-ID reader is required to link with the mobile communication service. It is true.

Accordingly, the present invention is to solve all the disadvantages and problems of the prior art as described above, and standardizes the transmission and reception data between the RF-ID tag and the RF-ID reader in order to facilitate the efficient communication service of the RF-ID-related technology An object of the present invention to provide an RF-ID system for.

The object of the present invention is to recognize and analyze a signal from the RF-ID tag and the RF-ID tag that generates a signal containing an IC chip, the information providing data for providing information recorded on the IC chip; And an RF-ID reader configured to obtain information of the information providing data, wherein the information providing data includes a start parameter field indicating a start of the data, a service provider ID field, and the RF- A service authentication parameter field for recording a service authentication code encrypted by a specific encryption algorithm to authenticate the ID reader, a service start date field, a service start time field, an error field indicating whether a data transmission error occurs, and A continuous field indicating whether or not it is continuous and the text that records the encrypted text authentication code for further authentication of the text representation An authentication parameter field, a text field that is a text storage area for display on the screen, an image authentication parameter field that records an encrypted image authentication code for additional authentication for image display, and an image data storage area for display on the screen. And an end parameter field indicating the end of data, wherein the RF-ID reader is configured to decrypt each encrypted authentication code of the service authentication parameter field, the text authentication parameter field, and the image authentication parameter field. Storing the authentication key information, classifying each field of the data received from the RF-ID tag, and decrypting each encrypted authentication code cipher using the stored authentication key information; Includes authentication means to obtain information from Is achieved by the RF-ID system.

RF-ID (Radio Frequency Identification) is an automatic identification technology using radio frequency (RF-ID) refers to reading or recording the information of the tag in a non-contact state through the antenna using the radio frequency.

Details of the above object and technical configuration of the present invention and the resulting effects thereof will be more clearly understood from the following detailed description based on the accompanying drawings.

First, Figure 1 is a configuration diagram of the RF-ID system of the present invention.

As shown, the RF-ID system of the present invention reads the RF-ID tag 100, in which predetermined information is recorded, and the information recorded in the RF-ID tag, and reads the read information into a wired or wireless network. It comprises a RF-ID reader 200 for transmitting to the RF-ID server 300 for processing the information of the tag through 400.

The RF-ID tag 100 is attached to the article is composed of an IC chip 110 for recording the information of the article and various information and the antenna 120 for communication with the RF-ID reader 200, the field of application It is designed in various forms according to.

The RF-ID tag 100 is classified into a passive type and an active type according to a method of obtaining an energy source of radio waves transmitted to the RF-ID reader 200, and the passive type is a radio wave received from the RF-ID reader 200. In this case, the active energy gets its transmit energy from its own battery.

The RF-ID reader 200 includes an antenna 210, a data reader 220, and a communicator 230.

The antenna 210 enables communication between the reader 200 and the tag 100 by activating the tag 100 through an electromagnetic field generated by the antenna 210, and the data reader 220 is the antenna 210. The data encrypted in the IC chip 110 of the RF-ID tag 100 is decrypted.

The communication unit 230 is in charge of managing communication between the RF-ID reader 200 and a PC, a server, or a network interface module, and transmits the decrypted data to a PC or a server by wire or wirelessly.

The operating principle of the RF-ID system configured as described above is that when the RF-ID reader 200 transmits radio waves to the RF-ID tag 100, the RF-ID tag 100 obtains energy from received radio waves and is activated. The activated RF-ID tag 100 carries information recorded on its IC chip 110 on the radio wave and transmits the information to the RF-ID reader 200.

In the present invention, the RF-ID tag 100 and the RF-ID reader 200 transmit and receive data according to a standardized specific data standard, and the data standard will be described with reference to FIGS. 2 and 3 show a passive tag, and FIGS. 4 and 5 show an active tag.

First, Figures 2 and 3 are diagrams of mutual transmission and reception data when the RF-ID tag 100 obtains an energy source from a passive type, i.e., a radio wave of the RF-ID reader 200. Fig. 3 shows a configuration of data to be transmitted (hereinafter, referred to as information providing data), and Fig. 3 shows a configuration of data (hereinafter, referred to as information request data) transmitted from the reader to the tag.

As shown in FIG. 2, the information providing data transmitted from the RF-ID tag 100 to the RF-ID reader 200 includes a start parameter field, a service provider ID field, a service authentication parameter field, and a service start date. Field, a service start time field, an error field, a continuous field, a text authentication parameter field, a text field, an image authentication parameter field, an image field, and an end parameter field.

A parameter indicating the start of data is recorded in the start parameter field, and a parameter indicating the end of data is recorded in the end parameter field, and information such as a producer or provider of an article having the corresponding RF-ID tag 100 is recorded in the operator ID field. Is recorded.

The service authentication parameter field includes a specific field for approving and authenticating the reading of the RF-ID reader 200 using the authentication key information of the RF-ID reader 200 to which the information of the corresponding RF-ID tag 100 is to be read. The service authentication code encrypted by the encryption algorithm is recorded, and the corresponding RF-ID reader 200 is configured to read information by decrypting the service authentication code using its authentication key.

Next, the service start date field and the service start time field are recording areas of date and time information for transmitting data from the RF-ID tag 100 to the RF-ID reader 200.

In the error field, a parameter indicating whether an error occurs during data transmission is recorded, and in the continuous field, a parameter indicating information for checking whether the transmitted data is continuous is recorded.

Next, detailed information such as a description of the article or the service is recorded in the text field, and a text authentication code is recorded in the text authentication parameter field for further authentication for reading and displaying the text.

The image field is an image information recording area such as a logo or a picture of the contents of the goods or services, and an image authentication code is recorded in the image authentication parameter field for further authentication for reading and displaying the image.

The text authentication code and the image authentication code is to enhance the security, can be omitted according to the type or content of the service, the service authentication code described above can be encrypted in association with the text authentication code and the image authentication code, It is not limited.

On the other hand, in case the storage space of the text or image is insufficient, the information providing data may further include an additional text field and an additional image field for storing the extra text and image.

To decrypt each authentication code, the RF-ID reader 200 stores authentication key information for decrypting each encrypted authentication code of the service authentication parameter field, the text authentication parameter field, and the image authentication parameter field. And dividing each field of the data received from the RF-ID tag 100 and decrypting each encrypted authentication code cipher using the stored authentication key information to obtain the RF-ID from the information providing data according to the data standard. Authentication means for acquiring the information of the ID tag 100 should be included.

In this case, the RF-ID reader 200 includes first authentication key information for decrypting the service authentication code of the information providing data, second authentication key information for decoding the text authentication code of the text authentication parameter field, and image authentication. Having the third authentication key information for decrypting the image authentication code of the parameter field, the RF-ID reader 200 may be configured to decrypt the corresponding authentication code cipher with each authentication key.

In addition, the RF-ID reader 200 may be configured to decrypt the service using a single authentication key corresponding to the combination of the service authentication code, text authentication code, image authentication code.

Meanwhile, as shown in the figure, each data field is assigned a constant number of bits, and each data transmission standard including the size of text and image may vary according to the type of tag or the type of service.

Next, FIG. 3 is a configuration of an information request message for the RF-ID reader 200 to request information from the RF-ID tag 100 and includes a start parameter field, a request message field, and an end parameter field.

The start parameter field is a parameter recording area indicating the start of the data in order to receive the above information providing data from the RF-ID tag 100, and the end parameter field is a recording area of the parameter indicating the end of the data.

The request message field is a service initiation request parameter region, and the RF-ID tag 100 checks the request message field and transmits corresponding data to the RF-ID reader 200.

In this case, the passive RF-ID tag 100 can automatically transmit its own stored data to the RF-ID reader 200 as it is activated by the RF-ID reader 200, the RF-ID reader 200 The transmission of the information request data according to the standard of FIG. 5 to the RF-ID tag 100 can be omitted.

On the other hand, the embodiment is an application example of the passive RF-ID tag 100, a data standard designed for the RF-ID reader 200 to perform authentication for service use. In the case of the active tag, authentication for service use may be handled by the RF-ID tag 100 itself, and the data standard of another embodiment according to this will be described with reference to FIGS. 4 and 5 as follows.

4 and 5 are diagrams of mutual transmission / reception data when the RF-ID tag 100 is active, that is, an energy source of its own, and FIG. 4 is data transmitted by the tag to a reader (hereinafter referred to as information providing data). Fig. 5 shows a configuration of data (hereinafter, referred to as information request data) transmitted from the reader to the tag.

As shown in FIG. 4, service authentication, which is a recording area of a service authentication code, is included in the information providing data transmitted to the RF-ID reader 200 by the active RF-ID tag 100 which performs authentication for service use by itself. The parameter field is not included, and the configuration of each other data field is the same as that of the embodiment of FIG.

That is, the information providing data includes a start parameter field, a service provider ID field, a service start date field, a service start time field, an error field, a continuous field, a text authentication parameter field, a text field, and an image authentication parameter field. And an image field and an end parameter field indicating the end of data, and detailed description thereof is the same as in FIG.

The RF-ID tag 100 stores itself with encrypted service authentication code information in order to perform authentication for service use by itself, and receives predetermined service authentication key information from the RF-ID reader 200 for authentication. It is configured to perform.

Therefore, as shown in FIG. 5, the information request data transmitted by the RF-ID reader 200 to the RF-ID tag 100 is used as a service authentication key recording area in addition to the start parameter field, request message field, and end parameter field. It further includes a service authentication parameter field.

That is, when the RF-ID tag 100 receives the information request data including the authentication key information from the RF-ID reader 200, the encrypted service authentication is performed using the authentication key information of the service authentication parameter field. Authentication means for decrypting the code cipher.

When the RF-ID tag 100 is decrypted with the authentication key of the RF-ID reader 200 and authenticated as a normal service user, the RF-ID tag 100 transmits the corresponding information providing data to the RF-ID reader 200 according to a predetermined standard. send.

The RF-ID reader 200 reads the information providing data packet transmitted from the RF-ID tag 100 in accordance with the transmission standard as described above, and stores the encrypted data for additional security such as text or image. Decryption is performed using the corresponding authentication key, and displayed on the screen such as a mobile communication terminal or a PC connected with the reader 200 or the RF-ID reader 200 or the reader 200 to be displayed as text and pictures. .

Meanwhile, according to the type of service, the service start date, time, service provider ID, etc., among the information providing data, includes the MIN number or the RF-ID reader of the mobile communication terminal having the RF-ID reader 200 for charging. It may be transmitted to the RF ID server 300 which is a corresponding service server along with the ID of 200.

On the other hand, the data transmission standard in the above embodiment may be changed in size according to the service, it is natural that additional parameter fields may be further included for security, authentication, QoS, and the like.

In addition, the information providing data and the information request data in the present invention has been described as a data standard between the RF-ID tag and the RF-ID reader in the RF-ID system, but in other communication systems such as Bluetooth, infrared, etc. Data specifications may apply.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Accordingly, the RF-ID system of the present invention standardizes various RF-ID-related data to provide a universal and verified standard specification system, whereby standardization of radio resources and connection with various communication systems including mobile communication systems can be achieved. It is effective in that the transaction can be quickly and secured with the RF-ID system.

1 is a configuration diagram of the RF-ID system of the present invention;

2 is a configuration diagram of information providing data of an RF-ID tag according to an embodiment of the present invention;

3 is a configuration diagram of information request data of an RF-ID reader according to an embodiment of the present invention;

4 is a configuration diagram of information providing data of an RF-ID tag according to another embodiment of the present invention;

5 is a configuration diagram of information request data of an RF-ID reader according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: RF-ID Tag 110: IC Chip

120: antenna 200: RF-ID reader

210: antenna 220: data reader

230: communication unit 300: RF-ID server

400: wired / wireless network

Claims (8)

An IC chip is built in, and an RF-ID tag generating a signal including information providing data for providing information recorded on the IC chip, and a signal from the RF-ID tag is recognized and analyzed to In the RF-ID system comprising an RF-ID reader for obtaining information, The information providing data includes a start parameter field indicating the start of data, a service provider ID field, a service authentication parameter field for recording a service authentication code encrypted by a specific cryptographic algorithm to authenticate the RF-ID reader, and a service. Text authentication that records a start date field, a service start time field, an error field indicating whether there is a data transmission error, a continuous field indicating whether the transmission data is continuous, and an encrypted text authentication code for further authentication on the text display. A parameter field, a text field that is a text storage area for display on the screen, an image authentication parameter field that records an encrypted image authentication code for additional authentication for image display, and an image data storage area for display on the screen. A field and an end indicating the end of the data It is configured to include a field called meters, The RF-ID reader stores authentication key information for decrypting each encrypted authentication code cipher of the service authentication parameter field, the text authentication parameter field, and the image authentication parameter field, and stores the authentication key information of the data received from the RF-ID tag. And an authentication means for classifying each field so as to decode each encrypted authentication code cipher using the stored authentication key information to obtain information of the RF-ID tag from the information providing data. -ID system. The method of claim 1, The authentication key information stored in the RF-ID reader may include first authentication key information for decrypting a service authentication code of a service authentication parameter field of information providing data and a text authentication code for decoding a text authentication code of a text authentication parameter field. 2 authentication key information and third authentication key information for decrypting an image authentication code of an image authentication parameter field, wherein the RF-ID reader is configured to decrypt a corresponding authentication code cipher with each authentication key. -ID system. The method of claim 1, The RF-ID reader may include a start parameter field indicating the start of data, a request message field which is a service start request parameter area, and an end parameter field indicating the end of data in order to receive the information providing data from the RF-ID tag. Transmitting information request data having a data format configured to include the RF-ID tag, The RF-ID tag transmits the information providing data to the RF-ID reader in response to receiving the information request data from the RF-ID reader. An IC chip is built in, and an RF-ID tag generating a signal including information providing data for providing information recorded on the IC chip, and a signal from the RF-ID tag is recognized and analyzed to In the RF-ID system comprising an RF-ID reader for obtaining information, The information providing data includes a start parameter field indicating the start of data, a service provider ID field, a service start date field, a service start time field, an error field indicating whether a data transmission error occurs, and whether transmission data is continuous. A continuous field, a text authentication parameter field for recording an encrypted text authentication code for authentication for text display, a text field that is a text storage area for display on the screen, and an encrypted image authentication code for authentication for image display And an image authentication parameter field for recording an image, an image field which is an image data storage area for display on a screen, and an end parameter field for indicating the end of data. The RF-ID reader stores authentication key information for decrypting each encrypted authentication code cipher of the text authentication parameter field and the image authentication parameter field of the information providing data, and stores the authentication key information of the data received from the RF-ID tag. And an authentication means for classifying each field so as to decode each encrypted authentication code cipher using the stored authentication key information to obtain information of the RF-ID tag from the information providing data. -ID system. The method of claim 4, wherein The RF-ID reader includes a start parameter field indicating the start of data to receive information provision data from the RF-ID tag, and an authentication key for enabling the RF-ID tag to authenticate the RF-ID reader. Transmitting information request data having a data format including a recorded service authentication parameter field, a request message field which is a service start request parameter area, and an end parameter field indicating the end of data, to the RF-ID tag; The RF-ID tag stores encrypted service authentication code information for authenticating the RF-ID reader, and when information request data is received from the RF-ID reader, using the authentication key of the service authentication parameter field. And means for authenticating said information providing data to an authenticated RF-ID reader by decrypting an encrypted service authentication code cipher. The method of claim 4, wherein The RF-ID reader stores the first authentication key for decrypting the text authentication code of the text authentication parameter field and the second authentication key information for decrypting the image authentication code of the image authentication parameter field, respectively. RF-ID system, characterized in that decrypting the corresponding authentication code with a key. The method according to claim 1 or 4, The information providing data, RF-ID system, characterized in that it further comprises an additional text field to be used when the space of the text field is insufficient. The method according to claim 1 or 4, The information providing data, And an additional image field to be used in case of insufficient space of the image field.