KR20100062813A - Rfid system, and method for tracking distribution process and e-pedigree thereof - Google Patents

Abstract

PURPOSE: An RFID(Radio Frequency IDentification) system, and a method for tracking a distribution process and an e-Pedigree using the same are provided to solve the security problems caused by a non-reliable service provider. CONSTITUTION: Plural RFID tag devices(200) transmits a tag signal including tag information corresponding to the paths through which products pass, and an RFID reader device(100) detects a tag signal for each path through which the products pass. The RFID reader device traces a distribution path and an E-pedigree of the product based on the tag information included in the detected tag signals.

Description

RDF system, and electronic system and distribution path tracking method using the same {RFID System, and method for tracking distribution process and e-Pedigree}

The present invention relates to a radio frequency identification (hereinafter referred to as "RFID") system and an electronic lineage and distribution path tracking method using the same. In particular, the present invention relates to an RFID system using a passive reader and a distributed active tag, and an electronic lineage and distribution path tracking method in an RFID system.

The present invention is derived from the research conducted as part of the IT growth engine technology development project of the Ministry of Knowledge Economy and the Ministry of Information and Telecommunications Research and Development. Protection technology development].

Radio Frequency Identification (“RFID”) technology is an automatic identification technology that uses radio communication technology to freely identify and record tag information attached to an object without directly contacting an object. It consists of tags, antennas, readers and middleware, and application service platforms.

An RFID system using RFID technology uses a method in which a reader receives a specific ID value of a tag from a tag and manages the same. The general RFID system is used to track the distribution path of the logistic or e-Pedigree by managing the data received from the tag in a specific database.

In a conventional RFID system, a plurality of tag information is managed in a central database. At this time, if the central database is not reliable or unavailable, it is difficult for the RFID system to accurately track the history of the tag.

In addition, the conventional RFID system has a problem that is also vulnerable to security threats such as manipulation of the replication tag or database (DB).

It is an object of the present invention to provide an RFID system that solves a security problem that may occur by an unreliable service provider in an RFID system, and an electronic lineage and distribution path tracking method using the same.

A radio frequency identification (hereinafter referred to as "RFID") reader included in an article according to a feature of the present invention for achieving the above object, and a plurality of RFID tags existing for each waypoint passing through the article. Method of tracking the electronic lineage and distribution path of the article using an RFID system, including

Whenever the RFID reader detects an RFID tag, collecting tag information corresponding to the detected RFID tag, classifying tag information based on IDs of the collected tag information, and each of the tag information includes Arranging the tag information based on the information of the waypoints where the corresponding RFID tag is located, checking whether there is an error in the information of the waypoints where the corresponding RFID tag including each of the aligned tag information exists; If there is no, includes tracking the electronic lineage and distribution path of the article based on the sorted tag information.

In addition, a Radio Frequency Identification (hereinafter referred to as "RFID") system for tracking the electronic lineage and distribution path of an article according to another aspect of the present invention

A tag signal including tag information corresponding to a transit point through which the article passes, and includes a plurality of RFID tags existing for each of the plurality of transit points through which the article passes, and the article, wherein the article is via And an RFID reader for detecting the tag signal at each passing point and tracking the electronic lineage and distribution path of the article based on the tag information included in the detected tag signals.

According to an embodiment of the present invention, the RFID system can be safely protected from security threats. According to an embodiment of the invention, the RFID system accurately tracks the electronic lineage and distribution path of the article by communication between the RFID reader and the RFID tag.

In addition, according to an embodiment of the present invention, it can be applied to various applications by supporting a variety of service providers through the electronic lineage and distribution path tracking method using the RFID system.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “… module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. Can be.

Hereinafter, an RFID system according to an embodiment of the present invention, and an electronic lineage and distribution path tracking method using the same will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing an environment to which an RFID system according to an embodiment of the present invention is applied.

Referring to FIG. 1, an RFID system includes an RFID reader device 100, a plurality of RFID tag devices 200, and a router connecting the RFID reader device 100 and each of the plurality of RFID tag devices 200.

In the environment to which the RFID system according to the embodiment of the present invention is applied, the RFID reader device 100 is attached to an object to be transported (hereinafter referred to as an “item”), and transport is performed. 200) is installed. Here, the transit point is a transit point in the transport path in which the vehicle carrying the goods moves, for example, the first transit point 11, the second transit point 12, the third transit point 13, and the fourth transit point. And point 14.

For example, when the article according to the embodiment of the present invention is a drug, each diesel point 11 to 14 may correspond to a pharmaceutical company, a wholesaler, a retailer, and a pharmacy, but is not limited thereto.

The RFID reader device 100 according to an embodiment of the present invention detects each RFID tag device 200 installed at a waypoint every time the article attached thereto passes through each waypoint, and corresponds to the detected RFID tag device. Save tag information.

Next, the end consumer who purchased the article may track the electronic lineage and distribution path of the article based on the RFID reader device 100 included in the article.

In detail, when the vehicle on which the article is loaded passes through the first waypoint 11, the RFID reader device 100 stores first tag information of the RFID tag device 200 corresponding to the first service provider. When the vehicle on which the article is loaded passes through the first waypoint 11 and the second waypoint 12, the RFID reader device 100 includes an RFID tag corresponding to the first and second waypoints 11 and 12. The first tag information and the second tag information of the apparatus 200 are stored.

When the vehicle loaded with the goods passes from the first waypoint 11 to the third waypoint 13, the RFID reader device 100 corresponds to the first, second and third waypoints 11, 12, 13. The first tag information, the second tag information, and the third tag information of the RFID tag device 200 are stored. In addition, when the vehicle on which the article is loaded passes through the first waypoint 11 through the fourth waypoint 14, the RFID reader device 100 may pass through the first, second, third and fourth waypoints 11, 12,. The first tag information, the second tag information, the third tag information, and the fourth tag information of the RFID tag device 200 corresponding to 13 and 14 are stored.

The end consumer who purchases the goods determines the authenticity of the goods such as the purchased medicines based on the tag information stored in the RFID tag device 200. Here, each tag information includes an encryption data portion, and each encryption data includes a specific algorithm and a specific secret key.

Conventional RFID system uses a centralized tag management scheme, a plurality of tag information using the same encryption algorithm, the same secret key. For this reason, the RFID system could not trust the tag information corresponding to the case where the service provider maliciously manipulated the tag information.

On the other hand, the present invention can supplement the reliability of the tag information by using a specific algorithm and a specific secret key in the cipher data portion of the tag information corresponding to each of the plurality of RFID tag devices 200.

RFID system according to an embodiment of the present invention can not only track the electronic lineage and distribution path of medicines, but also can be used in the payment document management.

In the RFID system applied to payment document management, the RFID reader device 100 may be implemented by using a print antenna and a small chip, and thus may be easily transplanted into a document, and thus may be applied to each document. In addition, assuming that each manager of the payment document has the RFID tag device 200, information about the manager is included in the document during the payment process, and the payment document can be managed using this information.

Next, an RFID system according to an embodiment of the present invention will be described in detail with reference to FIG. 2 or FIG. 3.

2 is a view schematically showing an RFID system according to an embodiment of the present invention, Figure 3 is a block diagram showing the structure of an RFID reader device and an RFID tag device according to an embodiment of the present invention.

First, the RFID system according to an embodiment of the present invention recognizes each RFID tag device 200 including a plurality of waypoints from the origin to the destination through the RFID reader device 100 included in the goods during the delivery of the goods. The electronic lineage and distribution path of the article can be tracked.

Referring to the structure of the RFID system in detail with reference to FIG. 2, the RIFD system includes an RFID reader device 100, a plurality of RFID tag devices 200, and an RFID reader device 100 and a plurality of RFID tag devices 200, respectively. It includes a router 300 to connect.

Referring to FIG. 3, the RFID reader apparatus 100 includes an antenna unit 110, a recognition unit 120, a data processing unit 130, a tag information storage unit 140, and a verification unit 150. In addition, the RFID reader device 100 according to the embodiment of the present invention may be configured as a passive reader.

The antenna unit 110 transmits a transmission signal to detect an RFID tag device 200 installed at a passing point, and receives a tag signal from the detected RFID tag device 200. The antenna unit 110 has a sensing area for sensing the RFID tag device 200. At this time, if there is a waypoint where the RFID tag device 200 is installed in the sensing area, tag detection is started, and when the waypoint leaves the waypoint, tag detection ends.

The recognition unit 120 recognizes the information of the waypoint via which the RFID tag device 200 is attached using the received tag signal. The recognition unit 120 according to an embodiment of the present invention recognizes the distribution path of the goods based on the tag information included in the tag signal.

Each time the data processor 130 receives the tag signal, the data processor 130 checks whether the cyclic redundancy checks (CRC) and the tag information overlap with respect to the tag information corresponding to the received tag signal.

If there is no error in the tag information as a result of the cyclic redundancy test of the data processing unit 130 and the tag information is not duplicated, the tag information storage unit 140 stores tag information corresponding to the received tag signal. Here, the tag information includes an ID for each RFID tag which is identifier information, information of a corresponding waypoint, and the like.

When the final consumer purchases the item, the verification unit 150 verifies whether the waypoint is an error based on the tag information stored in the data processing unit 130. In detail, the verifier 150 requests an error determination request to the route point corresponding to the tag information through the router 300 to determine whether the encrypted data included in the tag information is an error. Next, the verification unit 150 receives the result of determining whether the tag information is error through the router 300 from the waypoint.

Referring to FIG. 3, each of the plurality of RFID tag devices 200 includes a tag information unit 210, an encryption unit 220, and an antenna unit 230.

The tag information unit 210 stores tag information including an ID for each RFID tag which is identifier information, information of a corresponding waypoint, and the like.

The encryption unit 220 encrypts the tag information through a specific algorithm, generates a specific secret key, and applies the tag information to the tag information.

The antenna unit 230 receives a transmission signal from the RFID reader device 100 and transmits a tag signal to the RFID reader device 100.

As such, since the RFID system according to the embodiment of the present invention is implemented as a distributed system, it is not only safe from security threats but also supports various waypoints and can be applied to various fields.

Next, a process of receiving and processing tag information by the RFID reader apparatus 100 according to an embodiment of the present invention will be described in detail with reference to FIG. 4.

4 is a flowchart illustrating a process of receiving and processing tag information by an RFID reader device according to an exemplary embodiment of the present invention.

First, the RFID reader apparatus 100 according to the embodiment of the present invention is attached to an object to be transported, and is loaded on a transport means (for example, a vehicle) carrying an object to be transported. In addition, the RFID reader device 100 detects the RFID tag device 200 existing for each waypoint of the vehicle.

Referring to FIG. 4, the RFID reader device 100 receives a tag signal from the detected RFID tag device 200 and receives tag information based on the received tag signal (S401). Here, the tag information includes an ID for each RFID tag, which is identifier information, and information on a waypoint of the detected RFID tag device 200.

The RFID reader apparatus 100 performs a cyclic redundancy check on the received tag information, and determines whether there is an error in the tag information through the inspection (S402). If there is no error in the tag information, the RFID reader device 100 determines whether the received tag information is duplicated with tag information corresponding to the RFID tag device previously detected (S403). Tag information corresponding to the previously detected RFID tag device is stored in the data processor 130 of the RFID reader device 100. That is, determining whether tag information is duplicated prevents the same tag information from being re-stored in the data processor 130.

If the tag information is not duplicated, the RFID reader device 100 stores the tag information (S404).

Next, a process in which one RFID tag device 200 transmits tag information in a plurality of RFID tag devices 200 according to an embodiment of the present invention will be described in detail with reference to FIG. 5.

5 is a flowchart illustrating a process of transmitting tag information by an RFID tag device according to an embodiment of the present invention.

First, the RFID tag device 200 according to the embodiment of the present invention is installed at each passing point through which a vehicle carrying an article moves, and receives a transmission signal from the RFID reader device 100 to receive the RFID reader device 100. Send a tag signal. Here, the tag signal includes tag information.

Referring to FIG. 5, the RFID tag apparatus 200 encrypts tag information by applying an arbitrary algorithm and an arbitrary secret key to an encrypted data portion of the tag information (S501). Here, the tag information includes an ID (ID) of the RFID tag device 200 and information of a waypoint where the RFID tag device 200 is located.

When the RFID tag apparatus 200 applies the CRC to the encrypted tag information (S502) and requests the RFID reader apparatus 100 for error of the corresponding tag information, the RFID tag apparatus 200 calculates the tag information and generates an error if the set value does not come out. Set to

Next, the RFID tag device 200 transmits a tag signal including tag information to the RFID reader device 100 (S503).

Next, a method of tracking an electronic lineage and a distribution path in an RFID system according to an embodiment of the present invention will be described in detail with reference to FIG. 6.

6 is a flowchart illustrating a method for tracking an electronic lineage and a distribution path according to an embodiment of the present invention.

First, in the RFID system according to an embodiment of the present invention, the article including the RFID reader device 100 is delivered to a final consumer via a plurality of waypoints. In this case, the RFID tag device 200 is installed at each waypoint. In addition, the RFID reader device 100 detects the RFID tag device 200 and stores corresponding tag information every time the article passes through the waypoint.

Then, the end consumer who purchases or finally possesses the goods can track the electronic lineage and distribution path of the goods through the RFID reader device 100 included in the goods. At this time, through the procedure of verifying the tag information stored in the RFID reader device 100 can know the accurate electronic lineage and distribution path.

Next, a process of verifying tag information stored in the RFID reader device 100 will be described.

Referring to FIG. 6, the RFID reader apparatus 100 collects a plurality of stored tag information (S601). Here, the tag information includes an ID (ID) of the RFID tag device 200 and information of a waypoint where the RFID tag device 200 is located.

The RFID reader device 100 classifies tag information based on IDs of the RFID tag device 200 each of which includes a plurality of tag information, and tag information based on information of a waypoint where the RFID tag device 200 is located. Sort them (S602).

The RFID reader device 100 sends a decoding request to the RFID tag device 200 corresponding to each tag information through the router 300 (S603). Here, each tag information is information encrypted through a specific algorithm in the corresponding RFID tag device. Next, the RFID reader device 100 receives a response corresponding to the decryption result of the encrypted information from the corresponding RFID tag device. For example, the received response may be, "The data generated in the abcd decryption result tag information at 0: 0 on 0/00/00 is correct".

The RFID reader apparatus 100 determines whether an error occurs at the route point included in the tag information based on the received response (S604), and determines whether there is an error (S605). If there is an error, the RFID reader device 100 reports an error to the user as having a problem at the route point of the article to which it is attached (S606).

If there is no error, the RFID reader device 100 provides the electronic lineage and distribution path of the article to the user based on the tag information (S607).

As such, in the electronic lineage and distribution path tracking method using the RFID system according to the embodiment of the present invention, an RFID tag detected by the RFID reader device 100 by a user who finally carries an article including the RFID reader device 100 The electronic lineage and distribution path of the article may be tracked based on the tag information of the apparatus 200, and the authenticity of the article may be determined at the time of tracking.

The embodiments of the present invention described above are not only implemented by the apparatus and method but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded, The embodiments can be easily implemented by those skilled in the art from the description of the embodiments described above.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view schematically showing an environment to which an RFID system according to an embodiment of the present invention is applied.

2 is a view schematically showing an RFID system according to an embodiment of the present invention.

3 is a block diagram showing the structure of an RFID reader device and an RFID tag device according to an embodiment of the present invention.

4 is a flowchart illustrating a process of receiving and processing tag information by an RFID reader device according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating a process of transmitting tag information by an RFID tag device according to an embodiment of the present invention.

6 is a flowchart illustrating a method for tracking an electronic lineage and a distribution path according to an embodiment of the present invention.

Claims (10)

Electronic lineage of the article, using an RFID system including a Radio Frequency Identification (RFID) reader included in the article and a plurality of RFID tags present at each waypoint passing through the article. And a method for tracking distribution channels, Collecting tag information corresponding to the detected RFID tag whenever the RFID reader detects the RFID tag; Dividing the tag information based on IDs included in the collected tag information, and arranging the tag information based on information of a waypoint where the corresponding RFID tag including each of the tag information is located; Checking whether there is an error in the information of the route point where the corresponding RFID tag including each of the aligned tag information exists; and If there is no error, tracking the electronic lineage and distribution path of the article based on the sorted tag information Electronic lineage and distribution path tracking method using an RFID system comprising a. The method of claim 1, In the receiving tag information, the tag information is encrypted by applying an arbitrary algorithm and an arbitrary secret key to the encrypted data portion of the tag information in the RFID tag, and applying a cyclic redundancy check to the encrypted tag information. Electronic lineage and distribution path tracking method using RFID system to receive information. The method of claim 2, Collecting the tag information; Determining whether there is an error in the tag information through a cyclic redundancy check; If there is no error, determining whether the received tag information is duplicated with tag information corresponding to a previously detected RFID tag, and If the tag information does not overlap, storing the tag information Electronic lineage and distribution path tracking method using an RFID system comprising a. The method of claim 2, Arranging the tag information Requesting the RFID reader to decrypt the encrypted tag information with an RFID tag, and Receiving a response corresponding to a result of decrypting encrypted tag information from the RFID tag Electronic lineage and distribution path tracking method using an RFID system comprising a. The method of claim 1, If the article containing the RFID reader is a medicine, the RFID tag is an electronic lineage and distribution path tracking method using an RFID system that is installed in pharmaceutical companies, wholesalers, retailers and pharmacies respectively. In the Radio Frequency Identification (RFID) system for tracking the electronic lineage and distribution path of the article, A tag signal including tag information corresponding to a waypoint passing through the article, a plurality of RFID tags existing for each waypoint passing through the article, and RFID reader that includes the article, detects the tag signal at each passing point through the article, and tracks the electronic lineage and distribution path of the article based on the tag information included in the detected tag signals RFID system comprising a. The method of claim 6, Router for connecting the RFID reader and the plurality of RFID tags, respectively RFID system further comprising. The method of claim 6, Each of the plurality of RFID tags A tag information unit for storing tag information including an ID of an RFID tag and information of a waypoint where the RFID tag exists; An encryption unit for encrypting the tag information through a specific algorithm and generating a specific secret key and applying the tag information to the tag information; and An antenna unit for receiving a transmission signal from the RFID reader and transmitting the tag signal RFID system comprising a. The method of claim 8, The RFID reader An antenna unit configured to detect the RFID tag by transmitting the transmission signal to the plurality of RFID tags and to receive a tag signal from the detected RFID tag; Recognizing unit for recognizing the waypoint through which the RFID tag is present based on the received tag signal, And Each time the tag signal is received, the data processing unit stores the tag information corresponding to the received tag signal through a cyclic redundancy check and a check whether the tag information overlaps. RFID system comprising a. 10. The method of claim 9, When the article is delivered to the user via the plurality of waypoints, The RFID reader Verification unit for verifying whether an error occurs at the waypoint corresponding to the tag information based on the stored tag information RFID system further comprising.

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