KR20090101643A - Object identification system and method - Google Patents

Abstract

PURPOSE: An object identification system and a method thereof are provided to prevent a wrong product by 3D-visually comparing a product with an order. CONSTITUTION: An object identification system includes an RFID reader unit(130), an image obtaining unit(140), a product information DB unit(170), the first image display unit(150), and the second image display unit(160). The RFID read unit receives individual information of an RFID tag(110) attached to a product. The image obtaining unit photographs and stores a marker(120) attached to the product. The product information DB unit stores a 3D map of the product. The first image display unit displays, compares and determines an image of the product of the product information DB unit with the photographed product image. The second image display unit displays an image of one real product according to output of the first image display unit.

Description

Object identification system and method

The present invention relates to a method for identifying an individual using an RFID tag having a marker, and in particular, attaches an RFID tag to a product, and the RFID tag prints a marker having a predetermined shape so that a user can mark the marker at a predetermined distance and angle. In fact, the present invention relates to accurately distinguishing a product to be recognized by a user's portable terminal as the marker is actually visible.

In general, with the advent of passive high frequency identification (RFID) tags that do not require battery power, the price point for using RFID tags has dropped significantly compared to previous active tag prices. The development of this new RFID tag technology lowers the price for passive RF tags, so that many commercially available retail products are produced with the passive RFID tag embedded in the product or package as part of the normal manufacturing process. There will be a massive spread of the use of the system.

One of the first industries that pioneered the use of passive RFID tags is express delivery companies such as DHL, UPS and FedEx.

In recent years, these companies have required the generation of high quality barcoded packaging labels that represent information such as shipment identification, destination, shipping number, etc., and attaching them to the packaging.

These barcoded labels are scanned multiple times to sort and track packages according to the delivery cycle, and these labels are generated by a thermal label printing system installed at the customer's location or the company's shipping depot.

These carriers see high-frequency identification as a replacement for optically scanned bar codes.

Carriers have recently been testing passive high-frequency identification techniques that include printing an optical scan bar code and encoding an RF chip (attached to the label).

Once the price of an RFID chip falls, the RFID chip will eventually be integrated into a retail product. For example, when a computer is manufactured, the manufacturer will embed an RFID chip in the frame, which may include a date of manufacture, to provide warranty information.

The chip then uses the radio signal sent by the shipping company (e.g. UPS, DHL, etc.) to the package as if the label visually imaged the delivery address. Can be de

Barcodes typically printed on packaging labels only needed a readable address on the packaging label because the packaging did not need to be scanned or sorted.

Therefore, an inexpensive system can be used in place of the current packaging labeling system (thermal transfer label printer with an RF transmitter).

The system consists of a small inkjet printing system with a high frequency transmitter.

The inkjet printing system can print delivery addresses directly on the package, eliminating the need for thermal transfer labels.

Recently, this label is required to provide a high quality surface for barcodes or to act as a carrier for RFID chips.

Inkjet printing systems do not require high quality, and currently disclose techniques for generating readable addresses just like conventional non-contact inkjet printing systems used to print manufacturing dates on products such as canned goods, bottles and the like.

In addition, such an example is disclosed in Korean Patent Laid-Open Publication No. 2002-0042854 (June 7, 2002).

That is, the document shows that as shown schematically in FIG. 1, a product 21 having an RFID tag 22 is provided in the package, as shown schematically in the package 23, in order to completely seal the packaged product ( The packaging 23 is shown in the form of a conventional cardboard or paper board box having a number of flaps sealed and sealed (such as with tape, staples, etc.).

For the sake of clarity, a panel or flap 24 is shown open at one end of the box 23, the product 21 into an open package 23 as indicated by arrow 25. Is inserted.

On the other hand, it is not so important how exactly the product 21 is packaged or what the package contains.

The package 23 may be a crate, an envelope, a drum or other conventional structure that is easy to handle, ship and track.

Also shown is a human-readable cover in the form of an address cover 27, the cover being imaged directly on the package 23 by, for example, a conventional low resolution inkjet printer, and the RFID tag 22 being a human It has shipment data and tracking data encoded therein in association with the readable markings 27.

In use, the packaged product 20 is shipped from several places (including origin, destination and all transport points) by any suitable source, and conventional high frequency reader / receiver (not shown) is packaged product 20 Move appropriately close to, read shipment data and tracking data encoded in the RFID tag 22, provide information to the handler based on which the operator can read by the person imaged on the carton 23. By looking at the beacons, they present techniques to at least partially verify shipment data and tracking data.

However, the technique disclosed in Korean Patent Laid-Open Publication No. 2002-0042854 described above has a problem in that the shape of the marker is slightly changed depending on the angle and distance at which the user views the marker attached to the packaging of the product, so that the marker cannot be accurately recognized.

An object of the present invention is to solve the problems described above, and attaches a marker and an RFID tag on the packaging of the product, the marker is a user viewing direction using the image acquisition unit, product information DB unit and image display unit And displaying a marker on the image display unit in a shape according to distance to compare and determine the marker with a marker seen by a real user.

According to the individual identification system and method using an RFID tag with a marker according to the present invention, when the product is shipped, it is possible to easily compare the product ordered by the three-dimensional visualization to remove the product reverse phenomenon Is obtained.

1 is an exploded view showing an example of a conventional packaging;

2 is a block diagram of an individual identification system according to the present invention;

3 is a perspective view showing a subject identification method according to the present invention;

4 is a flowchart showing a method for identifying individuals according to the present invention;

In order to achieve the above object, the object identification system according to the present invention is a system for recognizing a product using an RFID tag and a marker attached to a product, the RFID reader unit for receiving the object information of the RFID tag attached to the product, An image acquisition unit for photographing and storing a marker attached to the product with a camera, a product information DB unit storing a 3D drawing of the product, an image of the product photographed by the image acquisition unit, and the product information DB unit And a second image display unit displaying, comparing, and determining an image of the first image display unit, and a second image display unit displaying an image of one actual product according to an output of the first image display unit.

Another object of the present invention is a method for recognizing a product using an RFID tag and a marker attached to a product, the method comprising the steps of: (a) the RFID tag receiving a signal from a mobile terminal, (b) the mobile terminal is a product Receiving the attached RFID tag object information and position information for viewing the marker of the RFID tag from the portable terminal, (c) analyzing the transmitted object information and the position information, and (d) the portable terminal Comparing and determining the actual image of the transmitted individual information and the image of the product modified according to the location information, (e) If it is determined in step (d) that the mobile terminal is the most similar image, the mobile terminal is a manager terminal And transmitting the result to the manager terminal and displaying the result image on the manager terminal.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention, through which the purpose and features of the present invention will be more clear.

2 is an overall configuration diagram of the individual identification system according to the present invention, FIG. 3 is a perspective view showing the individual identification method according to the present invention, and FIG. 4 is a flowchart illustrating the individual identification method according to the present invention.

As shown in Figure 2, the overall configuration of the identification system according to an embodiment of the present invention is loaded, stacked, transported and delivered product 100, RFID tag attached to the packaging or the surface of the product 100 An image acquisition unit (110) and a marker (120), an RFID reader unit (130) for receiving individual information of the RFID tag (110), and an image or image (shape) of the marker (120) is captured and stored. 140), the product information DB unit 170 that stores the 3D CAD image for the product 100 and has a 3D rendering function, the image of the marker 120 and the product transmitted from the image acquisition unit 140 A first image display unit 150 for displaying the modified marker image transmitted from the information DB unit 170 and comparing and determining the image of the actual product compared and determined by the first image display unit 150; It is composed of two image display unit (160).

The RFID reader unit 130, the image acquisition unit 140, the first image display unit 150, and the product information DB unit 170 may be embedded in a single mobile terminal or the like, and may be separated into individual devices. In addition, the first image display unit 150 is an image displayed on the screen of the portable terminal, the on-site inspector carrying out the factory inspection of the primary product possesses the portable terminal, the second image display unit 160 It may be provided in the product information DB unit 170 of the office manager to perform a secondary product release inspection.

Describe the operation of the system.

The RFID tag 110 and the marker 120 are attached to the product 100 to be loaded and transported, and the optimum positions to be attached are different because the RFID tag 110 acquires information or an image with a radio wave marker. Since they can be attached to each other apart from each other, or sometimes the marker is printed on the RFID.

The RFID reader unit 130 transmits a radio signal to the RFID tag 110 so that the RFID tag 110 transmits the object information to the RFID reader unit 130, and the transmitted object information includes the first image display unit ( It is transmitted to the product information DB unit 170 according to the control signal of 150, and receives the 3D CAD information (including three-dimensional drawing information) of the product of the object to the image display unit 150.

The first image display unit 150 may have a control function such as a microcomputer, and the second image display unit 160 may include a product information DB unit 170.

The image acquisition unit 140 includes a camera to capture and store the marker 120 of the product 100, and the first image display unit 150 is photographed by the camera of the 3D CAD information and the image acquisition unit. Images are displayed on one screen, and the two images are compared and judged.

The image of the acquired marker of the camera is a modified image by an angle and a distance (position information) of the camera viewing the marker.

The user compares and determines whether two images displayed on the screen of the first image display unit 150 are visually matched, and transmits the images to the second image display unit 160 if they match.

Here, the first image display unit 150 analyzes an image of a product photographed from the image acquisition unit 140 to obtain location information, and transforms an image extracted from the product information DB unit 170 according to the location information. It is provided.

When you ship a custom product, you have to deliver the product you ordered, but sometimes the product is changed.

Therefore, when the product is shipped, it is necessary to easily compare the ordered product through the three-dimensional visualization to remove the product inversion phenomenon.

To this end, it is a key feature to express, compare and determine the physical shape photographed in the portable terminal together with the shape stored in the product information DB unit.

As shown in FIG. 3, a perspective view illustrating an individual identification method according to the present invention photographs a marker 120 with a camera of an operator and analyzes the resolution and distortion or bias of the photographed image to analyze the marker (from the camera lens). Measurement of the distance d and the angle θ up to 120 is possible.

As shown in FIG. 4, a flowchart illustrating an object identification method according to an embodiment of the present invention includes a portable terminal transmitting wireless communication signals to an RFID tag 110 to receive individual information of the RFID tag 110. Photographing the marker with a camera equipped with the camera (S10), the portable terminal analyzes the tag information and the location information received from the RFID tag 110 and the camera (S20), the portable terminal is a product information DB unit Simultaneously displaying and transforming the 3D image extracted from the 170 according to the position information and the image captured by the camera on the screen and comparing and determining whether the image matched (S30), if step (S30) When the two images coincide with each other, the user transmits the image captured by the camera to the second image display unit 160 provided in the terminal of the manager and simultaneously displays an "OK" and the like, in step S30. , If the user is not determined to be most similar to the image and a step of continuing the step (S20).

As mentioned above, although the invention made by the present inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

Claims (8)

In a system for recognizing a product using an RFID tag and a marker attached to the product, RFID reader unit for receiving the object information of the RFID tag attached to the product, An image acquisition unit for photographing and storing the marker attached to the product, the camera, Product information DB for storing a three-dimensional drawing of the product, A first image display unit which displays, compares and determines an image of the product photographed by the image acquisition unit and an image of the product of the product information DB unit; And a second image display unit which displays an image of one actual product according to the output of the first image display unit. The method of claim 1, And the first image display unit displays, compares, and determines whether the image information photographed by the camera and the modified image information of the product according to the location information of the camera match. The method of claim 2, And the first image display unit has a screen to display the image information of the camera and the modified image information on one screen. The method of claim 1, And the RFID reader unit, the image acquisition unit, the product information DB unit, and the first image display unit are integrated into one portable terminal. In a method of recognizing a product using an RFID tag and a marker attached to the product, (a) the RFID tag receiving a signal from a mobile terminal, (b) receiving, by the portable terminal, RFID tag object information attached to a product and location information for viewing the marker of the RFID tag from the portable terminal; (c) the mobile terminal analyzing the transmitted individual information and location information; (d) comparing and determining the actual image of the transmitted individual information and the image of the modified product according to the location information, (e) if it is determined in step (d) that the portable terminal is the most similar image, the portable terminal includes transmitting the result to the manager terminal, and displaying the result image on the manager terminal. Identification method. The method of claim 5, The portable terminal returns to step (b) if it is determined in step (d) that it is the most similar image. The method of claim 5, And the portable terminal receives the image information captured by the camera in step (c) and the modified image information of the product according to the position information of the camera. The method of claim 5, And the portable terminal displays the image information of the camera and the modified image information on one screen in the step (d).