KR20130098595A - System and method for providing test rfid - Google Patents

Abstract

PURPOSE: A radio frequency identification (RFID) test providing method and a system thereof are provided to rapidly process harbor distribution by collecting the information of a product through a verified system. CONSTITUTION: A host (10) syntagmatically manages RFID tag information collected through the RFID reader and the control of the RFID reader. An RFID reader unit (41-43) is connected to the host with a cable to collect the information of RFID tags (51, 52) within a network according to the direction of the host and to output a table to an adjacent RFID reader unit by generating the table corresponding to the information of the RFID tags. A middleware unit (20) outputs the data collected from the RFID reader unit to the host. The RFID reader unit eliminates the information of the overlapped tags by comparing the received table with the information of the collected RFID tags. [Reference numerals] (500) Test tag; (AA) RFID tag #2; (BB) RFID tag #1; (CC) Conveyer belt; (DD) Direction of progress

Description

RFID test provision method and system providing the same {SYSTEM AND METHOD FOR PROVIDING TEST RFID}

The present invention relates to a quick and accurate processing of the goods management of the goods, and more particularly to an RFID system for monitoring the information and status of goods by attaching an RFID tag to the goods.

Radio Frequency Identification (RFID) technology is one of non-contact recognition technologies that can recognize objects by identifying unique IDs (data) using radio frequency (RF). RFID technology consists of an RFID tag containing unique data, an RFID reader for reading information (data) of the RFID tag, and a series of computing systems for processing data read by the RFID reader. It is a technology that enables an RFID reader to read tag data from an RFID tag attached to an object requiring identification, such as a vehicle, a product, a traffic card, and process the same in a computing system to recognize an object and perform a desired purpose.

In general, an RFID tag is composed of a transponder chip made of a semiconductor and an antenna, and receives energy from a radio wave signal of an RFID reader (passive type) or energy supplied from its own power source (battery) (active type). Send the unique data stored in the tag. The frequencies commonly used in RFID technology include low frequency (LF) in the 123 band, high frequency (HF) in the 13.56 band, ultra-high frequency (UHF) in the 433/900 band, and MW (microwave) in the 2.4 band. There is this. Each of these frequency bands has advantages and disadvantages according to their characteristics. For reference, 900 MHz of the UHF band is mainly used for the passive RFID scheme, and 433 MHz is mainly used for the active RFID scheme. The RFID system used for the logistics of a product consists of an RFID reader and a tag. The tag is attached to the product and contains information about the product. This information is communicated using radio frequency when requested by the reader. The host computer processes and stores the tag information collected by the reader for use in various applications. However, such an RFID system does not provide reliability between the electronic devices and the wireless signal because information about a product is obtained. There is a problem in that wrong information is obtained due to a failure of a reader or a tag or interference of a wireless communication. Therefore, a new method of RFID system that can collect information of the tag belonging to the communication range of the RFID reader without error for fast and accurate processing of the logistics is required.

Accordingly, the present invention is to solve the problems of the prior art RFID system, and to provide a RFID system verification method and a collection method for providing the information and the situation of the product quickly and accurately by attaching the RFID tag to the object. There is this.

An object of the present invention is to provide a preprocessing process for verifying the integrity of an RFID system in performing a series of processes of reading and processing information of a product through RFID.

An object of the present invention is to provide a verification method of an RFID system using a test tag that solves a problem in which an RFID system cannot recognize a tag attached to an object accurately due to a reader or tag system failure or a wireless communication failure. There is this.

An object of the present invention is to give an RFID reader the integrity of data collected through an RFID system to a host computer or middleware. It is an object of the present invention to provide an RFID system verification technique using a test tag that can be usefully used in a field requiring automatic recognition and positioning in a field of a wide area as well as a logistics environment.

An object of the present invention is to arrange a plurality of readers in order to recognize RFID tags efficiently, and to process information collected from them to be easily used by an application or a user.

An object of the present invention is to eliminate duplicate data through collaboration between readers in order to solve the problem that RFID tags are read by multiple readers.

The present invention solves the limitation of the RFID system not correctly recognized due to various obstacles when collecting the information of the tag to provide the integrity of the RFID to reduce the time and cost to manually recognize or re-acquire the tag. The purpose is.

According to an aspect of the present invention, in a system for performing an RFID test, a host for controlling and controlling an RFID reader and integrated management of RFID tag information collected through the RFID reader, and wired to the host to instruct the host. According to the present invention, the RFID reader unit collects information of RFID tags in the network, and the data integration unit removes redundantly collected information by compressing / integrating data collected from the RFID reader unit in conjunction with the host and the RFID reader unit. It is characterized by.

According to another aspect of the present invention, in a system for performing an RFID test, the host and the host for the integrated management of the control of the RFID reader and the RFID tag information collected through the RFID reader, and connected to the host by wire to instruct the host An RFID reader unit for collecting information of RFID tags in a corresponding network, generating a table corresponding to the collected RFID tags information, and outputting the generated table to an adjacent RFID reader unit, the host and RFID reader unit And a middleware unit outputting the data collected from the RFID reader unit to the host.

According to still another aspect of the present invention, in a method for providing an RFID test, a RFID tag information collection message is broadcasted to a plurality of RFIDs by a host which controls the RFID reader and manages the RFID tag information collected through the RFID reader. Searching for a predetermined test tag, recognizing the searched test tag, granting authority to collect RFID tag information in a corresponding network when the test tag is recognized, and corresponding network according to the preset rank. And collecting information on the RFID tags and generating and outputting a table corresponding to the collected RFID tags.

The RFID verification method using the test tag according to the present invention has the following effects.

First, there is an effect of providing a method for reliably monitoring the information and the situation of the goods by attaching the RFID tag to the thing or goods.

Second, after checking whether the RFID system is normally operated in the pre-processing process by using the test tag, it is possible to quickly process the port logistics through the collection of reliable product information through the verified system.

Third, by using a plurality of RFID readers to efficiently collect information of fast moving products without missing, it is effective to increase the applicability to the logistics environment.

Fourth, by removing the redundant data by filtering the information collected by multiple readers in the host computer and middleware, it is possible to save time and money by eliminating unnecessary additional work in the application layer. Fifth, when the RFID system collects the information of the tag, it is possible to reduce the time and cost of manually recognizing or re-collecting the tag by solving the limitation of not correctly recognized due to various obstacles.

1 is a block diagram of a system for performing an RFID test according to an embodiment of the present invention.
2 is a schematic configuration diagram of an RFID test system using test tags according to the first and second embodiments of the present invention.
3 is a configuration diagram for determining the reliability of a system for performing an RFID test using a plurality of test tags according to an embodiment and a second embodiment of the present invention;
4 is an exemplary system for improving the recognition rate and reliability of an RFID system by arranging a plurality of RFID readers according to the first and second embodiments of the present invention.
5 is an exemplary view showing an arrangement of readers for resolving signal interference and collision between readers according to an embodiment of the present invention.
6 is an exemplary diagram showing a system for performing an RFID test of the present invention using a data integration device and middleware.
Figure 7 is an illustration showing the removal of duplicated collected RFID information in the RFID verification system using the test tag according to the present invention.
8 is a block diagram of a multiple recognition elimination method without a data integration device according to the present invention.
9 is a flowchart illustrating a method of providing an RFID test according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be appreciated that those skilled in the art will readily observe that certain changes in form and detail may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. To those of ordinary skill in the art.

Hereinafter, a preferred embodiment of an RFID system verification technique and a collection procedure using a test tag according to the present invention will be described in detail. Features and advantages of the RFID system verification technique and collection procedure using the test tag according to the present invention will be apparent from the detailed description of each embodiment below.

First, the RFID system using the test tag for logistics according to the present invention is to provide reliability to the data of the tag obtained by the reader when trying to recognize the information to be confirmed, that is, the product information using the RFID in the logistics environment will be. Here, it is obvious that the confirmation target is not limited to the product only. And it relates to a technology for extending the communication range of the reader by arranging a plurality of RFID readers to expand the recognition rate of the product. When the RFID reader collects the tag, the directional antenna is used to solve the problem of not recognizing the tag due to the interference between signals between the readers. When the RFID reader delivers the collected information to the middleware, the RFID reader filters and compresses the redundantly collected data to reduce the load of removing it from the middleware or the application.

Hereinafter, a virtualization-based network separation method according to an embodiment of the present invention will be described in detail with reference to FIG. 1.

1 is a block diagram of a system for performing an RFID test according to an embodiment of the present invention. Referring to FIG. 1, an RFID tag within a communication range receiving a command from the host 10 and a host 10 for a control of the RFID reader and processing of information collected through the RFID reader and wired to the host 10. There are RFID readers 41, 42, 43 that collect information of the 51, 52. The data integration device 30 and the middleware 20 exist between the host 10 and the RFID readers 41, 42, 43 to remove the information of the duplicately collected tags.

More specifically, the system for performing an RFID test according to an embodiment of the present invention, the host 10 and the host 10 for the integrated management of the control of the RFID reader and the RFID tag information collected through the RFID reader, And a RFID reader unit 41, 42, 43 for collecting information of RFID tags in a corresponding network according to the instruction of the host 10, and the host 10 and the RFID reader unit 41, 42. And data integration unit 30 interworking with 43 to remove / collect duplicate information collected by compressing / integrating data collected from the RFID readers 41, 42, and 43.

In addition, the system for performing the RFID test according to the second embodiment of the present invention, the control of the RFID reader (41, 42, 43) and the RFID tag (51, 52) collected through the RFID reader (41, 42, 43) ) The host 10 for integrated management of information and wired to the host 10 to collect the information of the RFID tag (51, 52) in the network according to the instruction of the host 10, the collected An RFID reader unit 41, 42, 43 for generating a table corresponding to the information of the RFID tags 51, 52, and outputting the generated table to the adjacent RFID reader units 41, 42, 43; 10 and a middleware unit 20 interlocked with the RFID reader units 41, 42, and 43 for outputting data collected from the RFID reader units 41, 42, and 43 to the host 10.

Here, according to the first and second embodiments of the present invention, the test tag 500 which the RFID reader unit 41, 42, 43 reads to acquire the authority to collect information of the RFID tags 51, 52 in the corresponding network. 2), which is a schematic configuration diagram of an RFID test system using test tags according to first and second embodiments of the present invention. Before acquiring the information of the product, a process of determining the accuracy and integrity of the RFID system for acquiring the information of the product is performed. To this end, the RFID system utilizes a test tag 501. The test tag 501 is recognized in the preprocessing of the product recognition before the goods are received into the RFID system through the conveyor belt 71. Before the RFID reader 41 recognizes the tags 51 and 52 attached to the product, the RFID reader 41 attempts to recognize the test tag 501 through the antenna 63 mounted on the reader. If the recognition of the test tag 501 is successfully performed, the RFID reader 41 acquires the authority d to recognize the goods moving through the conveyor belt. However, when the RFID reader 41 fails to recognize the test tag 501, the RFID system does not guarantee reliability in recognition of the product and repeats the re-verification process. If one test tag is used to verify the RFID system, only the value of true or false determines the system's failure. To overcome this, a plurality of test tags 501 and 505 may be utilized.

3 is a configuration diagram for determining the reliability of a system for performing an RFID test using a plurality of test tags 501 and 505 according to one embodiment and the second embodiment of the present invention. When a tag is present, if one tag is not recognized, the reliability of the RFID system may be determined as 90%, and when five test tags are not recognized, the reliability may be determined as 50%. In addition, when a large number of goods are loaded on a conveyor belt or a tagged item moves at a high speed, the RFID reader may not recognize the tag.

To this end, in the present invention, a plurality of RFID readers are disposed, and the reliability of the plurality of RFID readers increases not only the recognition rate of the reader but also the reliability of the verification system. In other words, reliability is low for one RFID reader because it is not determined by one RFID reader but independently by all RFID readers, but many RFID readers may repeatedly read tags attached to goods on a conveyor belt. Therefore, the reliability of the entire RFID system can be guaranteed.

4 is a diagram illustrating a system for improving a recognition rate and a reliability of an RFID system by arranging a plurality of RFID readers according to the first and second embodiments of the present invention. The RFID reader 41 is attached to a product. The recognition of the test tag 501 is attempted before the tags 51 and 52 are recognized. If the recognition of the test tag 501 is successfully performed, the RFID reader 41 acquires the authority d to recognize the goods moving through the conveyor belt. Next, the RFID reader 42 performs the test tag in the same process. Attempt to recognize 501. Similarly, when the recognition of the test tag 501 is successfully performed, the RFID reader 42 acquires the authority d to sequentially recognize moving goods. This series of procedures is performed by all RFID readers 41, 42, 43 present in the system. When all the readers verify the RFID system through the test tag and recognize two or more readers at the same time in the process of recognizing the tag of goods moving through the conveyor belt, the tag performs the correct information exchange due to signal interference. can not do.

Figure 5 shows the layout of the reader to resolve such signal interference and collision between the reader. In order to resolve the signal interference and collision between the readers, RFID readers use antennas 61, 62 and 63 having a directional or fan-shaped radiation pattern, which are arranged not to overlap the communication distance of the readers. If the communication distance between the reader and the tag is (c), it is natural that the distance (e) between the RFID readers should be larger than (c). Through the above method, the problem of not collecting tag information due to signal interference between readers is solved. However, two or more readers may independently recognize the same tag repeatedly. For example, assuming that the RFID tags 51, 52, 53 move from left to right in FIG. 5, the tags 51, 52, 53 are attached to the RFID readers 41, 42, 43. All of them are recognized repeatedly.

The problem that the readers recognize RFID tags as duplicates is called multiple reads, and in order to remove them, a data integration unit is used according to an embodiment of the present invention.

Referring to FIG. 6, FIG. 6 shows a system for performing an RFID test of the present invention using a data integration device and middleware. The system to which the present invention is applied is composed of middleware 20, data integration device 30, RFID readers 41, 42, 43 and tags 51, 52, 53, and tags are attached to goods or objects. It moves through the conveyor belt and the reader sequentially obtains information of the moving tags. The RFID readers transfer the information of the collected tags to the data integration device 30 (B), and the data integration device compresses and integrates the data received from the readers and transmits the data to the middleware.

7 is a view illustrating removing redundantly collected RFID information in an RFID verification system using a test tag according to the present invention.

As illustrated in FIG. 7, when two or more RFID readers 42 and 43 repeatedly recognize information of the same RFID tag 52, the duplicated data should be transmitted to the middleware 20. However, such unnecessary transmission of additional information requires the cost and time required to occupy and refine the radio channel.

In order to solve this problem, the present invention compares / contrasts the table received from the neighboring RFID reader unit with the information of the RFID tags collected by the user to remove, summarize and transfer the duplicated RFID information to the middleware. Remove it.

More specifically, when the RFID reader 42 and the RFID reader 43 collect the RFID tag 52, the RFID reader 42 and 43 will have a table (B) (C), which will integrate the data. Transmit to device 30. When the RFID reader 41 collects the RFID tag 51, it has a table A, which is transmitted to the data integrator 30. The data integrator 30 includes its own collected information (A) (B) (C), removes duplicated data, creates a new table (a), and transmits it to the middleware 20. do. In the RFID system using the test tag according to the present invention, the multiple recognition elimination scheme removes such redundant RFID information and prevents unnecessary transmission of additional information by a summary.

On the other hand, according to the second embodiment of the present invention, the present invention includes a technique for removing a multi-recognized tag without the help of the data integration device disclosed in the first embodiment, Figure 8 is a second embodiment of the present invention Exemplary system for performing multiple recognition removal without a data integration device accordingly.

The present invention includes a method for removing a multi-recognized tag without the help of a data integration device, and FIG. 8 is a block diagram of a multi-recognition removal method without a data integration device according to the present invention. When the RFID reader 42 and the RFID reader 43 collect the RFID tag 52, the RFID reader 43 has a table M, which is transmitted to the RFID reader 42. The RFID reader 42 includes duplicated RFID information such as a table L, including information collected by the RFID reader 42 and information received from the neighboring RFID reader 43. The RFID reader 42 transmits information from which duplicate data is removed to the RFID reader 41, and the RFID reader 41 includes information such as a table K, and compresses it to collect the middleware 20. Pass information z. The RFID verification and collection method using the test tag according to the present invention prevents unnecessary additional information transmission without a data integration device by eliminating and summarizing such redundant RFID information.

For this reason, according to an embodiment of the present invention, the RFID readers 41, 42, and 43 identify their ranks among the RFID reader units sequentially numbered according to the preset ranks, and the preset area based on the identified ranks. It collects the information of the RFID tags in the output to a table of RFID tags collected to the adjacent RFID reader unit that is higher or lower than itself.

In the above, the system for performing the RFID test according to one embodiment and the second embodiment has been described.

Hereinafter, an RFID test providing method according to an exemplary embodiment of the present invention will be described with reference to FIG. 9.

9 is a flowchart illustrating a method of providing an RFID test according to an embodiment of the present invention. Referring to FIG. 9, first, in step 910, a host for managing the RFID reader and the integrated management of the RFID tag information collected through the RFID reader broadcasts the RFID tag information collection message to a plurality of RFIDs, and is preset in step 912. Retrieve the test tag.

In step 914, if the searched test tag is recognized or not, if the test tag is recognized, the process proceeds to step 916, and the authority for collecting RFID tag information in the corresponding network is granted. If the test tag is not recognized, step 917. In order to perform the re-validation of the entire system for performing the RFID test of the present invention.

Thereafter, in step 918, information on RFID tags in the corresponding network is collected according to the predetermined rank, and in step 920, a table corresponding to the collected information of the RFID tags is generated and output.

At this time, the table generation is generated by comparing / contrast the table received from the neighboring RFID reader unit with the information of the RFID tags collected by itself and removing the information of the duplicately collected tags.

According to another embodiment of the present invention, when generating a table corresponding to the information of the RFID tags, it identifies its rank among RFID reader units sequentially numbered according to a preset ranking, and based on the identified rank, Collects the information of the RFID tags in the set area and outputs the information of the RFID tags collected to the adjacent RFID reader unit that is higher or lower than itself.

Performing the output operation in step 920 according to the first and second embodiments of the present invention, after adding the information of the RFID tags collected by the neighboring RFID reader unit to the upper or lower in accordance with the preset order If there is a neighbor RFID reader unit, the updated table is output to the neighbor RFID reader unit.

As described above, an operation related to an RFID test providing method and a system for providing the same according to the present invention can be made. Meanwhile, the above-described description of the present invention has been described with reference to specific embodiments, but various modifications can be made without departing from the scope of the present invention. Can be implemented. Accordingly, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by equivalents of the claims and the claims.

10: host 20: middleware
30: data integration unit 41, 42, 43: RFID reader unit
51, 52: RFID Tag

Claims (10)

In a system for performing an RFID test,
A host for controlling and controlling the RFID reader and integrated management of the RFID tag information collected through the RFID reader;
An RFID reader unit connected to the host by wire to collect information of RFID tags in a corresponding network according to the host's instruction;
And a data integration unit linked to the host and the RFID reader unit to compress / integrate data collected from the RFID reader unit to remove redundantly collected information. In a system for performing an RFID test,
A host for controlling and controlling the RFID reader and integrated management of the RFID tag information collected through the RFID reader;
A wired connection to the host to collect information of RFID tags in a corresponding network according to the host's instruction, generate a table corresponding to the collected RFID tags, and output the generated table to an adjacent RFID reader unit; RFID reader unit,
And a middleware unit interlocked with the host and the RFID reader unit to output data collected from the RFID reader unit to the host. The method of claim 2, wherein the RFID reader unit,
And a table received from an adjacent RFID reader unit to compare / reconcile with the information of RFID tags collected by the neighboring RFID reader to remove the information of the duplicately collected tags. The method of claim 2, wherein the RFID reader unit,
Identifying one's own rank among sequentially numbered RFID readers according to a preset rank, and collecting information of RFID tags in a predetermined area based on the identified rank, the neighboring RFID reader that is higher or lower than itself. And a table of RFID tags collected as a negative unit. The method of claim 2, wherein the RFID reader unit,
Add the information of the RFID tags collected by the neighbor RFID reader to the table received, and output the updated table to the neighbor RFID reader if the neighbor RFID reader is located above or below according to a preset order; And if it does not exist, outputting the updated table to the middleware. 3. The method according to any one of claims 1 to 2,
And a test tag that the RFID reader leads to acquire information collection authority of RFID tags in a corresponding network. In the RFID test providing method,
Broadcasting a RFID tag information collection message to a plurality of RFIDs in a host for controlling and controlling the RFID reader and the RFID tag information collected through the RFID reader;
Searching for a preset test tag and recognizing the retrieved test tag;
When the test tag is recognized, granting authority to collect RFID tag information in a corresponding network;
And collecting information on the RFID tags in the corresponding network according to the predetermined rank, and generating and outputting a table corresponding to the collected information of the RFID tags. The method of claim 7, wherein the table generation,
And comparing and comparing the table received from the neighboring RFID reader unit with the information of the RFID tags collected by the neighboring RFID reader. The method of claim 7, wherein
Identifying one's own rank among sequentially numbered RFID readers according to a preset rank, and collecting information of RFID tags in a predetermined area based on the identified rank, the neighboring RFID reader that is higher or lower than itself. RFID test providing method further comprises the step of outputting the information of the RFID tags collected by the negative. 8. The method of claim 7,
Add the information of the RFID tags collected by the neighbor RFID reader to the table received, and output the updated table to the neighbor RFID reader if the neighbor RFID reader is located above or below according to a preset order; And if it does not exist, outputting the updated table to the middleware.

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