KR20070117341A - Terminal and method for providing a thing-information using rfid and system therefor - Google Patents

Abstract

A terminal and a method for providing article information by using RFID are provided to recognize an RFID tag placed over a predetermined distance from a mobile terminal. A plurality of RFID(Radio Frequency Identification) tags(100-110) respectively store RFID data including an article ID code of the attached article. A plurality of RFID converters(120,122) collect RFID data read from the RFID tags and other RFID readers according to predetermined RFID tag recognition setting, generate article state information including quantity, location, and detail information of each article based on the collected RFID data, and transmit the article state information when an article information request signal is received. The mobile terminal(130) transmits the article information request signal to one converter and stores the article state information transmitted by responding to the request signal. The mobile terminal provides the article information by searching the stored article information when an article information search request is received from a user. The RFID converter and the mobile terminal include a WLAN(Wireless Local Area Network) communicator.

Description

Terminal and method for providing goods information using RDF and system therefor {TERMINAL AND METHOD FOR PROVIDING A THING-INFORMATION USING RFID AND SYSTEM THEREFOR}

1 is a configuration diagram of a system for providing article information using RFID according to a preferred embodiment of the present invention;

2 is a block diagram of an RFID converter according to a preferred embodiment of the present invention;

3 is a block diagram of a portable terminal according to a preferred embodiment of the present invention;

4 is a flowchart of providing article information according to a first preferred embodiment of the present invention;

5 is a flowchart of providing article information according to a second preferred embodiment of the present invention;

6 is an exemplary view for providing article information in a mart according to a preferred embodiment of the present invention;

7 is an exemplary view of a screen for providing article information in a mobile terminal according to a preferred embodiment of the present invention.

The present invention relates to an article identification function of a portable terminal, and more particularly, to a portable terminal system for identifying an article using an RFID tag.

In general, a portable terminal refers to a terminal that is portable, such as a mobile communication terminal and a PDA (Personal Digital Assistant), and which transmits or receives data such as voice, video, and image through wireless communication, and makes a call.

RFID (Radio Frequency Identification) is a technology that transmits and processes the object and the surrounding environment information at a radio frequency by attaching a micro chip to the object, and is generally composed of an RFID tag and an RFID reader.

The mobile terminal having the RFID reader unit mentioned above provides a function of recognizing the article identification code of the RFID tag to identify the type of article. Therefore, when an RFID tag is attached to an article in a large mart or a book in a library, the mobile terminal can grasp the kind of the article or book.

However, since a mobile terminal having an RFID reader unit recognizes an RFID tag from time to time, power consumption is large, and a distance for identifying an RFID tag is short, so that only a RFID tag near a mobile terminal is recognized. In addition, only a mobile terminal having an RFID reader has a problem of receiving a service related to RFID.

Accordingly, the present invention provides a method for recognizing an RFID tag that is separated from the portable terminal by a predetermined distance or more.

In addition, the present invention provides a method for receiving a service related to RFID even a mobile terminal having no RFID reader.

In the method for providing article information using RFID to solve the above problems, the RFID converter reads the RFID data including the article identification code of the article mounted from the RFID tags according to the RFID tag recognition setting, Collects the read RFID data and the RFID data received from other RFID converters, generates article status information including quantity information, location information, and detailed information of each article identified by the collected RFID data, and generates a plurality of portable terminals. Select one of the RFID converters and transmit the article information request signal, and when the RFID converter receives the article information request signal, transmit the stored article state information to the mobile terminal using short-range wireless communication. And storing, by the portable terminal, the transmitted state information.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a configuration diagram of a system for providing article information using RFID according to a preferred embodiment of the present invention. Referring to FIG. 1, a description will be given of a process in which article information is transmitted to a portable terminal and the portable terminal provides article information.

Referring to FIG. 1, an article information retrieval system is constructed of RFID tags 100, 102, 104, 106, 108, and 110, RFID converters 120 and 122, and a mobile terminal 130.

The RFID tags 100, 102, 104, 106, 108, and 111 may be classified into a passive tag that operates with an external power source and an active tag that operates with an internal power source. The passive tag does not have power in itself and receives energy from the RFID converters 120 and 122 to operate. And active tags have their own internal power source and operate without an external power supply.

The RFID first converter 120 extracts RFID data in the RFID tags 100, 102, and 104 and transmits the extracted RFID data to the RFID second converter 122 using a short range wireless communication technology. The RFID second converter 122 also recognizes RFID data of the RFID tags 106, 108, and 110 and transmits the recognized RFID data to the RFID first converter 120 using a short range wireless communication technology. Therefore, the RFID converters 120 and 122 transmit and receive RFID data recognized by each converter and share them with each other. In this case, Bluetooth, Zigbee, or UWB (Ultra-wideband) may be used as a short range wireless communication technology.

The RFID data may be stored in advance in the RFID tag, and may be an article identification code for identifying the article to which the RFID tag is attached.

According to the present invention, if the RFID converters 120 and 122 have an article management function, the RFID converters 120 and 122 generate article state information from the collected RFID data and store it. Thereafter, the RFID converter receiving the article information request signal from the portable terminal 130 transmits the stored article state information to the portable terminal 130 through short range wireless communication technology.

The article management function is a function for generating article status information using RFID data.

The article state information is information necessary for managing the article, and is generated using RFID data and article detail data. The item detail data contains various information about the item.

The article management function can grasp the quantity of the article by RFID data including the article identification code, the position of the article by the location information of the converter, and can grasp the various information of the article by the article detail data. The above-mentioned item detail data may vary depending on the location of the library or mart.

That is, when the article management function is provided in the RFID converter 120, the RFID converter 120 reads the RFID data from the RFID tag. In addition, when the RFID converter 120 transmits the read RFID data to another RFID converter, the RFID data is transmitted together with the identification code of the transmitting RFID converter. When the RFID converter 120 generates the item status information, the quantity of the item may be determined by the RFID data including the item identification code. And the RFID converter 120 determines the position of the converter by the identification code of the received RFID converter and determines the position of the converter as the position of the article.

Therefore, the position of the article is determined by the positions of the RFID converters 120 and 122 that read the RFID data from the RFID tag, and the quantity of the article is determined by collecting the read RFID data by the same article.

The portable terminal 130, which is a component of the system, requests the transmission of article information to one of the RFID converters 120 and 122 using a short range wireless communication technology. The mobile terminal 130 receives the article status information from the RFID converter requesting the transmission of the article information. When the article search is requested by the user afterwards, the mobile terminal 130 retrieves the corresponding article status information from the received article status information and notifies the user. When the mobile terminal 130 notifies the user of the item status information, the quantity or location information of the item may be notified to the user by text or image.

The aforementioned article management function may be provided in the RFID converters 120 and 122 or may be provided in the portable terminal 130 according to the embodiment of the present invention.

When the article management function is provided in the portable terminal 130, the portable terminal 130 requests the transmission of the article information to one of the plurality of converters. The mobile terminal 130 receives the entire RFID data and performs article management to generate article status information. Afterwards, when the product search is requested by the user, the mobile terminal 130 searches for the corresponding article state information in the generated article state information and notifies the user.

In the article information providing process, the RFID converters 120 and 122 read RFID data from the RFID tags 100, 102, 104, 106, 108 and 110 at a certain distance according to the RFID recognition setting. At this time, the RFID recognition setting may be set to periodically read the RFID data or may be set to read the RFID data at the request of the converter manager.

The RFID first converter 120 transmits an RFID data request signal to the RFID tags 100, 102, and 104 according to the RFID recognition setting. The RFID tags 100, 102, 104 receiving the RFID data request signal transmit the RFID data to the RFID first converter 120.

The RFID first converter 120 transmits the RFID data transmitted from the RFID tags 100, 102, and 104 to the RFID second converter 122 using a short range wireless communication technology. In addition, the RFID second converter 122 also reads the RFID data from the RFID tags 106, 108, and 110 located within a predetermined distance and transmits the RFID data to the RFID first converter 120. The RFID first converter 120 collects the read RFID data and the received RFID data. Therefore, the RFID converters 120 and 122 share the recognized RFID data.

The RFID converter having an article management function performs article management to generate article state information from the collected RFID data.

When the user information is requested by the user, the mobile terminal 130 searches for one converter among the RFID converters 120 and 122 and transmits an article information request signal for requesting the article information. The portable terminal 130 searches for converters suitable for short-range wireless communication among the RFID converters 120 and 122 located within a predetermined radius, and selects one converter among the searched converters and transmits an item information request signal.

When the mobile terminal 130 selects one converter, it may select the nearest converter among the searched converters or select the converter having the best short range communication state.

Upon receiving the goods information request signal, the RFID first converter 120 transmits the generated goods state information to the mobile terminal 130 by using a short range wireless communication technology. Retrieve the information and notify the user.

In the above-mentioned system, the article management function is provided by the RFID converters 120 and 122, but the article management function may be provided by the portable terminal 130. At this time, the RFID converter 120 receiving the article information request signal transmits the collected RFID data to the mobile terminal. In this case, the RFID converter 120 and the mobile terminal 130 may transmit data using short-range wireless communication. The mobile terminal 130 executes an article management function to generate article status information using the transmitted RFID data, and when a user information search is requested by the user, searches for the corresponding information in the article status information and notifies the user.

2 is a block diagram of an RFID converter according to a preferred embodiment of the present invention. The operation of the RFID converter according to the present invention will be described with reference to FIGS.

The RFID reader unit 203 performs a function of recognizing the RFID tags 100, 102, 104. In order to recognize the data of the RFID tag 100 and performs a function of transmitting and receiving with the RFID tag 100.

The memory unit 205 stores data necessary for controlling the RFID first converter 120, and in particular, RFID data transmitted from the RFID tags 100, 102, 104 by a command of the converter control unit 201 in the present invention. Save them. And the RFID data is transmitted from the RFID second converter 122.

In addition, in the first embodiment of the present invention in which the RFID converter 120 has an article management function, the memory unit 205 stores article state information which is a result of executing the article management function.

The short range wireless communication unit 207 performs a function of short range communication with other devices. In particular, in the present invention, the short range wireless communication unit 207 performs wireless communication with the RFID second converter 122 and the mobile terminal 130 existing within a predetermined distance. For example, the short range wireless communication unit 207 may be a Bluetooth or ZigBee or UWB module.

The converter controller 201 controls the overall operation of the RFID first converter 120, and in particular, transmits the RFID data recognized from the RFID tags 100, 102, and 104 to the RFID second converter 122. . When transmitting the RFID data, the control unit 201 includes an identification code of the RFID first converter 120 to transmit. The converter control unit 201 receives the RFID data recognized by the RFID second converter 122. In addition, the RFID first converter 120 collects the recognized RFID data and the received RFID data.

When the RFID first converter 120 has an article management function, the converter control unit 201 derives article state information from the RFID data collected by executing the article management function.

3 is a block diagram of a portable terminal according to a preferred embodiment of the present invention. An operation of the mobile terminal according to the present invention will be described with reference to FIGS. 1 to 3.

The wireless unit 303 performs a wireless communication function of the portable terminal. The radio unit 303 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The baseband processor 305 includes a transmitter for encoding and modulating a transmitted signal and a receiver for demodulating and decoding a received signal. The sound processor 307 converts the audio signal output from the converter controller 101 into an audible sound or converts an audible sound input from the outside into a voice signal.

The short range wireless communication unit 309 performs a function of short range communication with other devices. In particular, in the present invention, the short range wireless communication unit 309 performs wireless communication with the RFID converters 120 and 122 existing within a predetermined distance. For example, the short range wireless communication unit 309 may be a Bluetooth, a Zigbee, or a UWB module.

The key input unit 311 includes numeric keys (including * and # keys) for dialing and function keys for various functions. The key input unit 311 generates a key signal corresponding to a key pressed by the user and outputs the key signal to the controller 301. .

The memory unit 313 stores data necessary for controlling the mobile terminal. In particular, in the first embodiment of the present invention, the memory unit 313 stores the article management function transmitted from the RFID converter 120. The memory unit 313 of the mobile terminal 130 having an article management function stores RFID data transmitted from the RFID converter 120 and article state information generated after performing the article management function.

The display unit 315 displays the current state of the portable terminal and the operating state of the portable terminal according to the control of the converter controller 100 and generally includes a liquid crystal display (LCD) and organic light emitting diodes (OLEDs).

The controller 301 controls the overall operation of the portable terminal. In particular, in the first embodiment of the present invention, if the article is requested to be searched according to the article information request setting, the controller 301 may perform RFID converters 120 and 122 capable of short-range wireless communication. Search. The controller 301 selects one converter from the searched converters 120 and 122 and transmits an article information request signal. The controller 301 receives and stores the goods status information from the selected RFID converter, and retrieves the corresponding information from the transmitted goods status information and notifies the user when the goods information search is requested by the user.

The article information request setting may be set by the user when transmitting the article information request signal or by periodically sending the article information request signal. That is, when a command for transmitting the article information request signal is input by the user, the article information request signal may be transmitted or the article information request signal may be periodically transmitted to one of the neighboring RFID converters.

In addition, in the second embodiment of the present invention in which the mobile terminal 130 has an article management function, the controller 301 selects one converter among the RFID converters 120 and 122 and transmits an article information request signal. Then, the RFID data of the entire RFID converter is received from the selected RFID converter 120, and article state information is generated from the received RFID data. The second embodiment of the present invention will be described in detail with reference to FIG.

In the first embodiment according to the present invention, the RFID converters 120 and 122 have an article management function to generate article state information from RFID data. 4 is a flowchart for providing article information in a system according to a first preferred embodiment of the present invention. A flowchart for providing article information will be described with reference to FIGS. 1 to 4.

In operation 401, the RFID first converter 120 requests extraction and transmission of RFID data according to an RFID recognition setting. The RFID first converter 120 transmits an RFID data request signal to the RFID tag 100 periodically or at the request of an administrator.

The RFID tag 100 receiving the RFID data request signal in step 403 transmits the RFID data to the RFID first converter 120. The RFID tags 102 and 104 which have received the RFID data request signal also transmit the RFID data to the RFID first converter 120.

In operation 405, the RFID first converter 120 transmits the read RFID data to the RFID second converter 122 and receives the RFID data from the RFID second converter 122. The RFID first converter 120 collects the read RFID data and the RFID data transmitted from the RFID second converter 122. Therefore, all RFID converters share the entire RFID data.

Two methods can be given as examples of how RFID converters share RFID data.

In the first method, RFID converters transmit their read RFID data so that the entire RFID converter can share them. Thus, all RFID converters can share the entire RFID data.

In the second method, predetermined RFID converters among all RFID converters receive and collect RFID data of RFID converters located within a certain range. Predetermined RFID converters transmit the collected RFID data so that they can be shared with each other. Thus predetermined RFID converters share the entire RFID data.

In step 407, the RFID first converter 120 performs an article management function, and generates and stores article state information using RFID data collected in step 405. This article status information may vary depending on the space in which the article is located.

For example, when the RFID converter 120 of a large mart performs an article management function, the RFID data including the article identification code is analyzed to grasp the article name corresponding to each article identification code. And the RFID converter 120 grasps the quantity of the same article by the identified article name. The RFID converter 120 determines the position of the article by the position of each RFID converter that reads the article identification code corresponding to the article. And the RFID converter 120 grasps the price of the article corresponding to the article name. The product detail information including the item name, the location of the goods, and the price of the goods identified above is generated. At this time, the goods detail data is the price data of the goods.

As another example, when an RFID converter is located in a library, the RFID converter 120 may identify a book name corresponding to an identification code of the RFID data, determine whether a loan is available to correspond to the book name, and identify a book position to correspond to the book name. do. It generates the product status information including the book name, book location, and whether the book is checked. The item detail data at this time becomes book loan availability data.

In step 409, the mobile terminal 130 searches for one RFID converter among RFID converters located at a short distance according to the item information request setting. The mobile terminal 130 transmits an article information request signal to the retrieved RFID converter. In the embodiment of the present invention, the portable terminal 130 designates the RFID converter in which the article information request signal is transmitted to the RFID first converter 120. The article information request signal is a signal for requesting the transmission of article status information.

In operation 411, the RFID first converter 120 transmits the generated article state information to the mobile terminal 130 using short-range wireless communication.

In operation 413, the mobile terminal 130 stores the item state information transmitted from the RFID first converter 120. Subsequently, if the user is requested to retrieve the item information, the corresponding information is retrieved from the stored item status information and notified to the user.

In step 407, all of the RFID converters may generate article state information, and only some RFID converters may generate article state information.

In the second embodiment according to the present invention, the mobile terminal 130 provides article management functions to generate article status information from RFID data. 5 is a flowchart for providing article status information in a system according to a second preferred embodiment of the present invention. 1 to 5 will be described a flow chart for providing article status information.

In operation 501, the RFID first converter 120 requests extraction and transmission of RFID data according to a predetermined setting. The RFID first converter 120 transmits an RFID data request signal to the RFID tag 100 according to the RFID recognition setting.

In operation 503, the RFID tag 100 receiving the RFID data request signal transmits the RFID data to the RFID first converter 120. The RFID tags 102 and 104 which have received the RFID data request signal also transmit the RFID data to the RFID first converter 120.

In operation 505, the RFID first converter 120 transmits the read RFID data to the RFID second converter 122 and receives the RFID data from the RFID second converter 122. In addition, by receiving and receiving RFID data of other RFID converters (not shown) through short-range wireless communication, RFID data recognized by each RFID converter is collected.

In step 507, the mobile terminal 130 searches for one RFID converter among RFID converters located at a short distance according to the item information request setting. The mobile terminal 130 transmits an article information request signal to the retrieved RFID converter. In this case, the portable terminal 130 designates the RFID converter in which the article information request signal is transmitted to the RFID first converter 120.

In step 509, when the article information request signal is received, the RFID first converter 120 transmits the collected RFID data to the mobile terminal 130 using short-range wireless communication.

In operation 511, the mobile terminal 130 generates article state information using RFID data received from the RFID converter.

The portable terminal 130 executes the article management function to generate article state information from the received RFID data. The article management function may generate article status information including the quantity and location of articles using RFID data. The article management function may generate article state information according to the article detail data in addition to the quantity and location of the article when the article detail data exists.

In operation 513, the mobile terminal 130 stores the item state information generated in operation 511. Subsequently, if the user is requested to retrieve the item information, the corresponding information is retrieved from the stored item status information and notified to the user.

6 is an exemplary view of searching for product information in a mart according to a preferred embodiment of the present invention. A process of searching for product information in the mart will be described with reference to FIGS. 1 to 6.

In FIG. 6, cucumbers 601, cabbages 603, and pumpkins 605, which are items of a mart, are located within a predetermined distance of the RFID first converter 120. The squid can 607, the canned pie 609, and the steamed ramen 611 are located within a predetermined distance of the RFID second converter 122. In addition, as in the second embodiment of the present invention, the mobile terminal 130 is provided with an article management function.

Items in the mart are attached with an RFID tag, and the RFID tag stores RFID data corresponding to each item.

The RFID first converter 120 and the RFID second converter 122 periodically recognize RFID tags located within a predetermined distance and read RFID data from the RFID tags. That is, the RFID first converter 120 recognizes the RFID tag attached to the cucumber 601, the cabbage 603, the pumpkin 605, and reads the RFID data, and the RFID second converter 122 reads the squid. 607, the RFID tag attached to the static pie 609 and the steamed ramen 611 is recognized to read RFID data.

In addition, the RFID converters 120 and 122 transmit or receive the article identification code read through short-range wireless communication and share them with each other. RFID converters 120 and 122 also store shared RFID data.

The portable terminal 130 transmits the article information request signal to one of the RFID converters 120 and 122 according to the article information request setting, and receives the shared RFID data in response.

When the mobile terminal 130 first transmits the item information request signal to the RFID first converter 120, the portable terminal 130 receives the RFID data shared by the RFID first converter 120. The mobile terminal 130 performs an article management function to generate article state information from RFID data.

For example, the mobile terminal 130 calculates the quantity of the article by searching for the article name corresponding to the RFID data and classifying those having the same article name among the found article names. The mobile terminal 130 generates article information including a price of the article corresponding to the article name and a place where the article is located in the mart. Therefore, the item status information includes the quantity, price, and location of the mart corresponding to the item name.

The mobile terminal 130 stores the generated goods state information, and when the user is requested to search for the goods, retrieves the corresponding information and notifies the user.

7 is an exemplary view of a screen for providing article information in a mobile terminal according to an embodiment of the present invention. A process of providing article information will be described with reference to FIGS. 1 to 7.

The portable terminal 130 stores article state information according to the first or second embodiment of the present invention. After the request for providing the goods information by the user, the mobile terminal 130 detects the corresponding goods state information from the stored goods state information and notifies the user.

Screen 701 is a screen displayed after the request for goods information by the user. On the screen 701, when the article name to be searched by the user is input, the portable terminal 130 displays the input characters on the screen.

In the exemplary embodiment of the present invention, when 'squid can' is input by the user and 'next' located at the lower right of the screen 701, the mobile terminal 130 displays the screen 703.

The screen 703 is a screen for searching for and displaying article state information corresponding to 'squid can' among article state information stored in the mobile terminal 130. The screen 703 shows the place where Squid Cane is located in the mart with a black dot on the map of the mart and displays the price of the item.

The map image is stored by the RFID converter, and is transmitted when the item status information or the RFID data is transmitted to the portable terminal.

The item position of the squid can is designated as the position of the RFID converter that reads the RFID data corresponding to the squid can.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. For example, although an embodiment of a mart has been described in an embodiment of the present invention, the present invention can be applied to a library or a theater. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined not only by the claims but also by the equivalents of the claims.

 As described above, according to the present invention, a RFID terminal separated by a predetermined distance or more from a mobile terminal not provided with an RFID reader unit can be recognized, and a mobile terminal without an RFID reader unit can provide a service related to RFID. do.

Claims (24)

In the system for providing article information using RFID, RFID tags that store RFID data, including the item identification code of the mounted item; The RFID data read out from the RFID tags and the RFID data received from other RFID converters are collected according to a predetermined RFID tag recognition setting, and the quantity information, the location information, and the details of each article identified as the collected RFID data are detailed. RFID converters for generating article status information including information and transmitting the article status information upon receiving the article information request signal; And a portable terminal for transmitting the article information request signal to one of the RFID converters and storing the article state information transmitted in response to the request signal. The method of claim 1, The portable terminal further comprises searching for the corresponding information from the stored item state information and informing the user of the request for the item information search by the user. The method of claim 1, The RFID converter and the portable terminal further comprises a short-range wireless communication unit. The method of claim 1, And the other RFID converters generate the article state information from the collected RFID data. The method of claim 1, And a predetermined converter among the other RFID converters generates article status information from the collected RFID data. The method of claim 1, The RFID converters store location information of respective RFID converters in advance, and the location information of each item is determined in relation to the location information of the converter transmitting the RFID data corresponding to each item. The method of claim 1, The RFID converters receive the location information of the other converters together with the RFID data transmission of the other RFID converters, and the location information of each item is determined in relation to the location information of the converter that transmits the RFID data corresponding to each item. Article information providing system, characterized in that. In the method for providing article information using RFID, The RFID converter reads the RFID data including the item identification code of the mounted item from the RFID tags according to the RFID tag recognition setting, collects the read RFID data and the RFID data received from other RFID converters, and collects the collected RFID data. Generating article status information including quantity information, location information and detailed information of each article identified by one RFID data; The mobile terminal selecting one converter from among a plurality of RFID converters and transmitting an article information request signal; When the RFID converter receives the article information request signal, transmitting the stored article state information to the portable terminal using short-range wireless communication; And storing, by the portable terminal, the transmitted state information of the article. The method of claim 6, And searching for the corresponding information in the stored article state information and notifying the user when the article information search is requested by the user. In the method for providing the article information by the RFID converter using RFID, Reading RFID data including an item identification code of an item mounted from the RFID tags according to an RFID tag recognition setting; Collecting the read RFID data and RFID data received from other RFID converters; Generating and storing article state information including quantity information, location information, and detailed information of each article identified by the collected RFID data; And receiving the item information request signal from the portable terminal and transmitting the stored article status information to the portable terminal using short-range wireless communication. In the method for providing the goods information using the RFID terminal, Sends the item information request signal to the RFID converter which stores the quantity of each item identified by the RFID data read from the RFID tags including the identification code of the mounted item, the location information and the item status information including the detailed information. To do that, Receiving and storing article status information in response to the request signal; And retrieving the corresponding information from the stored item state information and notifying the user when the item information retrieval is requested by the user. In the system for providing article information using RFID, RFID tags that store RFID data, including the item identification code of the mounted item; An RFID converter which collects RFID data read from the RFID tags and RFID data received from other RFID converters according to a predetermined RFID tag recognition setting, and transmits the collected RFID data upon receiving an item information request signal; , The article information request signal is transmitted to one of the RFID converters, and article state information including quantity information, location information, and detailed information of each article identified as the RFID data transmitted in response to the request signal is generated. And a portable terminal for storing the article. The method of claim 12, The portable terminal further comprises searching for the corresponding information from the stored item state information and informing the user of the request for the item information search by the user. The method of claim 12, The RFID converter and the portable terminal further comprises a short-range wireless communication unit. The method of claim 12, The portable terminal stores the position information of each RFID converter in advance, and the position information of each article is determined in relation to the position information of the converter transmitting the RFID data corresponding to each article. The method of claim 12, The portable terminal receives the position information of the other converters together with the RFID data transmission, and the position information of each article is determined in relation to the position information of the converter which transmits the RFID data corresponding to each article. Product information providing system. In the method for providing article information using RFID, Reading, by the RFID converter, RFID data including an item identification code of an item mounted from RFID tags according to an RFID tag recognition setting, and collecting the read RFID data and RFID data received from other RFID converters; The mobile terminal selecting one converter from among a plurality of RFID converters and transmitting an article information request signal; The RFID converter receiving the article information request signal transmits the collected RFID data to the mobile terminal; And generating and storing, by the portable terminal, item status information including quantity information, location information, and detailed information of each item identified by the transmitted RFID data. The method of claim 17, The mobile terminal further comprises the step of retrieving the corresponding information from the stored product state information when the user information request is requested by the user and notifying the user. In the method for providing the article information by the RFID converter using RFID, Reading RFID data including an item identification code of an item mounted from the RFID tags according to an RFID tag recognition setting; Collecting and storing the read RFID data and RFID data received from other RFID converters; Receiving the item information request signal and transmitting the stored RFID data to a portable terminal using short-range wireless communication. In the method for providing the goods information using the RFID terminal, Transmitting a product information request signal by selecting one converter among a plurality of RFID converters storing RFID data read from RFID tags including an identification code of the mounted article; Generating and storing article state information including quantity information, location information, and detailed information of each article identified as RFID data transmitted in response to the transmitted request signal; And retrieving the corresponding information from the stored item state information and notifying the user when the item information retrieval is requested by the user. An RFID converter device for providing article information using RFID, An RFID reader unit for reading RFID data including an item identification code of an item mounted from the RFID tags; Near field communication department, Memory section, The RFID data read from the RFID reader unit and the RFID data received from other RFID converters are collected using the short range wireless communication unit, stored in the memory unit, and the quantity of each item identified as the stored RFID data. And generating and storing article state information including information, location information, and detailed information, and transmitting the stored article state information to the short-range wireless communication when the article information request signal is received from the mobile terminal. RFID converter. The method of claim 21, The short range wireless communication unit is an RFID converter, characterized in that composed of at least one of Bluetooth, Zigbee, UWB. In the portable terminal device for providing article information using RFID, Near field communication department, Memory section, Sends the item information request signal to the RFID converter which stores the quantity of each item identified by the RFID data read from the RFID tags including the identification code of the mounted item, the location information and the item status information including the detailed information. And store the article state information transmitted in response to the transmitted request signal in the memory unit, and when the user information retrieval is requested by the user, detect the corresponding article state information in the memory unit and notify the user. A mobile terminal comprising a control unit. The method of claim 23, wherein The short-range wireless communication unit is a portable terminal, characterized in that composed of at least one of Bluetooth, Zigbee, UWB.

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