KR101051393B1 - Tag set and how to read data in the tag set - Google Patents

Abstract

A tag set and a method of reading data of the tag set are disclosed. The tag set includes at least one tag set including at least one tag, and each of the at least one tag included in each tag set includes a common ID unit having a common value for each tag set and the respective ones. It includes a unique ID unit having a unique value for each tag included in the tag set of.

Description

Tag set and method for reading data stored in the tag set}

The present invention relates to RFID-based tags and a method of reading data included in the tags, and more particularly, based on the ID structure and the ID structure of a tag that can be applied when a plurality of tags exist in a set. It's about how to read tags.

In recent years, RFID-based non-power / low power communication technologies have been developed, and as the price of each RFID device (eg, a tag or a reader) becomes cheaper, the use of RFID-based non-power / low power communication technologies has increased in the vicinity of us. have.

In particular, these RFID technologies are used in conjunction with existing technologies to create new ones. One such example is E-POST IT or Digital POST-IT. E-POST IT is a technology that enables information to be used on-line and off-lin using RFID technology.

1 is a view for explaining the concept of the e-post it.

Referring to FIG. 1, user A can record predetermined information in the e-post-it. User A may then deliver the E-Post It to User B. User B can move the information stored in the e-post it online and also change the information stored in the e-post it. The e-post it with the changed information can be forwarded back to user A. User A can move, change and utilize the changed information included in the e-post it online. In this way, the user can use the E-Post It to store the processed information online and output the online information offline. This E-Post It reads offline information using RFID technology.

On the other hand, in RFID technology, each RFID tag has a unique tag ID. In addition, RFID technology reads data in two steps. First, the reader looks up the ID of each RFID tag around the reader through singulation, and after reading all the IDs, reads data from each RFID tag by using a polling method. In some cases, a rough number of tags may be found through tag population estimation before singulation, and singulation may be performed more efficiently through this.

There may be some problems in applying this RFID technology to an environment in which tags form a set of tags such as E-Post It. That is, in an environment like E-Post It, tags may exist in sets or chunks like a conventional note paper or notebook. In addition, since each page of the e-post-it has an RFID tag having a unique tag ID, it may take a very long time to read tag singulation and data. As a result, the number of tags may increase exponentially in the E-Post It, which may take a long time to read data.

Therefore, there is a great need for a tag ID structure and a read method capable of efficiently reading a plurality of tags in consideration of an environment in which tags may form one set, such as an e-post-it, and at least one such set may exist.

The technical problem to be achieved by the present invention is to provide an ID structure of a tag and a method of reading accordingly, in which the reader forms a set of tags, and the reader can read the tag efficiently in an environment in which at least one of these sets may exist. will be.

The tag set for achieving the technical problem includes at least one tag set including at least one tag, each of the at least one tag included in each tag set has a common value for each tag set It includes a common ID unit and a unique ID unit having a unique value for each tag included in each tag set.

The consecutive tags included in each tag set may be characterized in that the unique ID values are continuous.

The at least one tag may be an E-POST IT.

The tag set for achieving the technical problem includes at least one tag set including at least one tag, at least one tag included in each tag set may have a continuous tag ID.

The data reading method of the tag set for achieving the technical problem, the step of the reader receiving a common ID among the tag ID included in the tag and selecting at least one tag set to read the data based on the received common ID It may include a step.

The method of reading data of the tag set may further include selecting any one tag based on a tag ID among tags included in the selected tag set and reading data of the tag continuously based on the tag ID of the selected tag. Can be.

The step of selecting one tag based on the tag ID may include selecting a tag having a unique ID of the tag ID that is the minimum or maximum among the unread tags.

The method of reading data of the tag set may include selecting the selected tag set when there is no data to be read by a predetermined N (N is a natural number of 2 or more) consecutive tags while the reader continuously reads the tag data based on the tag ID. The method may further include checking whether there is a tag having data among the unread tags among the unread tags, and if the check result is present, reading data of the tag continuously from the checked tag.

In order to achieve the technical problem, a method of reading data of a tag set includes selecting a tag set of at least one tag set by a reader, and selecting one tag based on a tag ID among tags included in the selected tag set. Selecting, and reading data of the tag continuously based on the tag ID of the selected tag.

Selecting any one tag based on the tag ID may include selecting a tag having a unique ID of the tag ID that is the minimum or maximum among the unread tags.

If the reader continuously reads the tag data based on the tag ID, and there is no data to be read by a predetermined number of N (N is a natural number of 2 or more) tags, there is data among unread tags among the selected tag set. The method may further include checking whether there is a tag, and if there is a result of the checking, reading data of the tag continuously from the checked tag.

The data reading method of the tag set may be stored in a computer readable recording medium having recorded thereon a program.

According to the present invention, the RFID tags and the reading method exist in a common ID part of tags included in the same tag set, so that the reader recognizes the tag set rather than each tag.

In addition, consecutive tags included in one tag set have consecutive tag IDs, so that when one tag is singulated, the consecutive tags can read data without singulation. There is an effect that can significantly reduce the time and power consumption.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Also, in this specification, when any one element 'transmits' data to another element, the element may transmit the data directly to the other element, or may be transmitted through at least one other element And may transmit the data to the other component.

Conversely, when one element 'directly transmits' data to another element, it means that the data is transmitted to the other element without passing through another element in the element.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

2 is a diagram illustrating a tag ID structure of a tag set according to an embodiment of the present invention.

2, a tag set according to an embodiment of the present invention may include at least one tag set (eg, Tag set 1 and Tag set 2) including at least one tag. The tag set may mean a predetermined set of the respective tags. In addition, each tag included in the tag set may have a logical order. One set of tags may correspond to one set of offline POST-IT®.

In FIG. 2, two tag sets (Tag set 1 and Tag set 2) are shown, N tag is included in Tag set 1, and M tag is included in Tag set 2. May be included.

Each tag (eg, Tag1 to N, Tag A to M) included in a tag set according to an embodiment of the present invention has a common value having a common value for each tag set (eg, Tag set 1 and Tag set 2). Unique ID unit 2 having a unique value for each tag (eg, Tag1 to N, Tag A to M) included in ID unit 1 and each of the tag sets (eg, Tag set 1 and Tag set 2). ).

That is, since tag 1 and tag 2 are tags included in tag set 1 in FIG. 2, the common ID included in the common ID unit may be the same. However, since tag A is a tag included in tag set 2, the common ID of tag 1 or 2 and tag A are different.

Meanwhile, unique IDs stored in each of tags (eg, tag 1 and tag 2) included in the same tag set may be different. Therefore, tag 1 and tag 2 have the same common ID, but unique IDs have different values. However, the unique IDs of each tag (eg, tag 1 and tag A) included in different tag sets (eg, tag set 1 and tag set 2) may have the same value.

The technical idea of the present invention makes it easy to find a tag set through a common ID. When the reader finds the desired tag set, the data of the tags included in the found tag set can be easily read. In addition, by first finding a tag set desired by the reader, the range of IDs of tags included in the tag set can be effectively reduced.

Therefore, the technical idea of the present invention can lead tags much more effectively in an environment where tags are present in sets. Because the number of tags is large, the number of tag sets is much smaller than the number of tags, and once a tag set is found, the number of singulations is required for the reader to read each tag included in the tag set as described below. Because it can be reduced much. Moreover, since the reader can find the desired tag set by the conventional singulation method based on the common ID only, the ID used to find the desired tag set is shorter than the length of each ID of the tag. You can find a set.

Meanwhile, consecutive tags included in each tag set (eg, tag set 1 or tag set 2) may have a value of the unique ID unit 2, that is, a unique ID. The contiguous tags are not meant to be physically contiguous but may be used to include logically contiguous tags. For example, if the tag set (eg, tag set 1 or tag set 2) is implemented in the form of a conventional offline post-it or note, the consecutive tags are a tag corresponding to a page and then It may mean a tag corresponding to a page. In addition, consecutive tags may not be physically continuous, that is, the unique ID may mean a continuous tag regardless of the position of the tag. Unique IDs may be contiguous when the values of two unique IDs differ by a unit value. The unit value does not necessarily mean 1 here.

If the unique IDs are continuous, the reader can singulate one tag and then read the singulated tag, and the consecutive tags of the singulated tag can be read directly without singulation. This is because the ID of the consecutive tags can be known. Thus, in an optimal case, the reader may read all tags included in the tag set with only one singulation in one tag set.

As a result, according to the method of reading the data of the tag set according to the embodiment of the present invention, the number of singulations can be greatly reduced. Therefore, the speed of reading a tag can be improved, and the power consumption of the reader can be reduced as the number of singulations is reduced.

The above-described tags may be implemented as E-POST IT or digital POST-IT, but the present invention is not limited thereto. The technical concept of the present invention is an environment in which a plurality of tags form a set. Can be applied.

3 is a flowchart illustrating a method of reading data of a tag set according to an exemplary embodiment of the present invention.

4 illustrates an embodiment of a method of reading data of a tag set according to an embodiment of the present invention. FIG. 4 shows tags 10, 20, 30, 40, 50, 60, 70, and 80 in which data is recorded in one tag set, and three tags 10, 20, 30 and 4 The individual tags 40, 50, 60 and 70 represent the case of consecutive tags.

3 and 4, first, the reader may select any one of at least one tag set using the common ID as described above. The selected tag may include tags as shown in FIG. 4.

Thereafter, the reader may find a tag having a minimum ID among tags that have not been read in the selected tag set (S100). Of course, a tag having the maximum ID may be found, but the case of finding the minimum ID will be described for convenience of description. According to an implementation example, the reader may know in advance a tag ID range of a tag included in a tag set. Depending on the range of known tag IDs, the tag with the minimum ID can be found in various ways (eg, binary search, etc.). In the technical idea of the present invention, the reader may compare only the unique ID to find the minimum ID. In the case of FIG. 4, the reader can find the tag 10.

If the reader does not find a tag having the minimum ID (S110), since the tags of the selected tag set are all read tags, the reader selects another tag set and starts reading (S150).

If the reader finds the tag 10 having the minimum ID (S110), the reader reads the data of the found tag 10 and continuously reads the data of the tags 20 and 30 (S120). In this case, in order to read the data of the tags 20 and 30, the reader and the tags 20 and 30 may directly read the data of the tags 20 and 30 without having to singulate. This is because consecutive tags have consecutive tag IDs (or unique IDs).

From the next tag of the tag 30 in which data is recorded, there may be a predetermined number of tags in which data is not continuously recorded. In the case where there are continuous tags in which no data is recorded, it may be an unnecessary process for the reader to continuously read the data of the tags. In addition, if one tag is found in which data is not recorded while the reader continuously reads the tag, it may be inefficient to search for the tag having the minimum ID among the remaining tags. This is because there may be a tag that has data again from the next tag. Therefore, the reader may read the tag continuously and perform step S140 and / or step S100 only when N tags having no data come out continuously. Otherwise, the reader may continue to read the tag continuously. have. The N may be preset in various ways according to the embodiment.

When the reader reads the tags continuously and there are consecutive tags in which no data is recorded for a predetermined number N (S130), the reader stops reading the tags continuously and searches whether there are tags with data among the remaining tags. It may be (S140). If the reader reads the tags continuously and there are no tags in which data for which no data is recorded for a predetermined number N (S130), the reader reads the data of the tags continuously until the last tag of the selected tag set, and the other A process of reading a tag set is performed (S150). In FIG. 4, it is assumed that there are N or more consecutive tags having no data between the tag 30 and the tag 40. The tag 40, 50, 60, 70, or 80 having data among the remaining tags may be searched for (S150). Then, since it means that the tag with data remains among the tags that the reader has not read, the process of reading the data again may be repeated from the process of finding the tag 40 having the minimum ID among the unread tags (S100). If there is no tag having data among the tags not read by the reader (S140), since the selected tag set has been read, the process of reading another tag set (S150) is performed.

In order to determine whether there is a tag having data among tags that the reader has not read (S140), if a tag having data is found as a result, steps S100 and S110 may be omitted.

The reader may continuously read the tags 20, 50, 60, and 70 from the found tag 40 (S120). Thereafter, since there is no data to be read in N consecutive tags again (S130), it is determined whether there is a tag having data among the remaining tags (S140). As a result of the determination, since the tag 80 exists, the process S100 may be performed again. After the reader reads the data of the tag 80, since there are no more consecutive tags, it may be determined that the tags included in the selected tag set have been read, and the process of reading another tag set may be performed.

The method of reading data of a tag set according to an embodiment of the present invention may be embodied as computer readable codes on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, optical data storage, and the like, as well as the type of carrier wave (for example, transmission over the Internet). It also includes the implementation in the form. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a view for explaining the concept of the e-post it.

2 is a diagram illustrating a tag ID structure of a tag set according to an embodiment of the present invention.

3 is a flowchart illustrating a method of reading data of a tag set according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a data reading method of a tag set according to an embodiment of the present invention.

Claims (12)

At least one tag set including at least one tag, Each of the at least one tag included in each tag set is A common ID unit having a value common to each tag set; And And a unique ID unit having a unique value for each tag included in each tag set. The method of claim 1, Consecutive tags included in each tag set have a unique ID set of consecutive tags. The method of claim 1, wherein the at least one tag, A set of tags that is E-POST IT. delete In a data reading method of a tag set including a plurality of tags, A reader receiving a common ID among tag IDs included in the tag; And Selecting at least one tag set to read data based on the received common ID. The method of claim 5, wherein the method of reading data of the tag set includes: Selecting one tag based on a tag ID among tags included in the selected tag set; And And reading data of the tag continuously based on the tag ID of the selected tag. The method of claim 6, wherein selecting one tag based on the tag ID comprises: And selecting a tag having a minimum or maximum unique ID of the tag ID among the unread tags. The method of claim 6, wherein the method of reading data of the tag set includes: When the reader continuously reads the tag data based on the tag ID, and there is no data to be read by a predetermined number of N (N is a natural number of 2 or more) consecutive tags, Checking whether there is a tag having data among unread tags among the selected tag set; If present, further comprising reading data of the tag continuously from the checked tag. delete delete delete Claim 12 was abandoned upon payment of a registration fee. A computer-readable recording medium having recorded thereon a program for performing the method of claim 5.

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