KR20060046658A - A system and method for generation and tracking of documents printed with radio frequency identifications which indicate the content of the documnet and producing a real-time alert in case of security breach - Google Patents

Abstract

 Disclosed are a system and method for generating and tracking a printed document with Radio Frequency Identifications (RFID) informing the content of the document, and for generating a real-time alert in case of a security breach. The system according to the present invention is combined with a host device in which applications forming the contents of a document are stored, a printer device which receives information from the host device and instructs the position and contents of the RFID, and a printer device. And a plurality of RFID detectors having an RFID attachment device for attaching the RFID, and means for recognizing an effective location tag indicating the location of the document and for issuing a real time alert when a security breach is detected.

RFID, security, alarm, document

Description

System and method for generation and tracking of documents printed with radio frequency identifications which indicate the content of the documnet and producing a real-time alert in case of security breach}

1 is a view showing an example of a system capable of attaching RFID when generating a document according to the prior art;

2 is a diagram showing that an RFID detector capable of detecting a document according to the prior art is installed in a building;

3 is a block diagram of a system in accordance with an embodiment of the present invention;

4 is a block diagram showing another possible configuration of a system according to an embodiment of the present invention; and

5 is a flowchart provided to explain a method of operating a system according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

300: host device 310: printer driver

400: printer device 410: paper feed unit

420: print engine unit 430: RFID attached device

 The present invention relates to security preparation and tracking of a document tagged with a radio frequency identification (RFID) tag, and more particularly, to generate and track a document printed with an RFID to inform the contents of the document, and to secure the document. A system and method for alerting in real time in case of infringement.

 RFID tags are widely used to track and detect objects to which they are attached. Thus, RFID tags are a useful tool for tracking the movement of documents. US 2004/0041707 discloses the use of a technique for tracking RFID-attached documents for security purposes. This US patent describes how to track a document by sensing a tag attached to the document and how the database server processes this information. The system in this U.S. Patent discloses a device capable of attaching RFID to a paper document, a database of hash values of the document, and an RFID associated with the environment in which the RFID detector communicates with each document and database. do.

According to the prior art, RFID is provided when a document is generated, and at the same time the hash value of the document is also stored in the central server. When the document is moved to another place, the RFID detector senses the information encoded by the RFID and transmits the encoded information to the data server. The data server uses this encoded information to track the document. The system and its operation are described in FIGS. 1 and 2. As shown in the drawing, there are a plurality of sensors disposed in an appropriate area at the position of at least one document, and each sensor may generate a sensor output signal by sensing a response signal generated in the document. The detection module is coupled with the sensor to receive sensor output signals from the sensors that generate detection signals indicative of the movement of the document. The first sensor set generates a sensor output signal corresponding to the position of the first document, and the second sensor set generates a sensor output signal corresponding to the position of the second document.

The system described above is very effective for tracking documents but has some problems. The main problem is that the generated RFID is difficult to classify documents irrespective of the contents of the documents, and it is difficult to associate the security characteristics with documents classified as a group or common as a group.

Another problem is that the system places the RFID in the same location. When someone knows where the RFID is located, they can avoid printing data there. Later, the user can simply remove the blank area of the document with RFID and fill the document. The system also has a vulnerability that does not alert in real time. In view of the above-mentioned problems in the related art, it is required to generate meaningful RFID for each document, and it is required to track the security of the document more simply and to generate a security breach alarm of the document in the existing system. do.

Accordingly, a first object of the present invention is to provide a system and method for generating and tracking a printed document with RFID (Radio Frequency Identifications) representing the content of the document and for generating a real time alert in case of a security breach.

It is a second object of the present invention to provide a direct association between the security level of a document and a common security field used for dynamically generated document RFID, and when a document with a common security RFID is detected an RFID detector can be used without the assistance of an external database. It is to provide a system that can operate in real time.

It is a third object of the present invention to provide a common group ID that helps to legally mark a document at a place in a building or elsewhere.

A fourth object of the present invention is to RFID tag at any position on a document determined by a command from a detectable printer or copying device of the final position at which data is to be printed, making it difficult for a user to forge a tag without damaging the document. To provide a system that can be attached intelligently.

It is a fifth object of the present invention to provide a system capable of not only generating passive tracking information but also generating a real time alert whenever a security breach is detected.

A system for generating and tracking a printed document equipped with Radio Frequency Identifications (RFID) informing the contents of the document according to the present invention for achieving the above object, and generating a real-time alert in case of a security breach, forms the content of the document. Applications are stored in the host device, a printer device for receiving information from the host device, and indicates the location and content of the RFID, coupled to the printer device, the RFID to the document according to the instructions of the printer device And a plurality of RFID detectors that have an RFID attachment device to attach to, and means for recognizing an effective location tag indicating the location of the document and for issuing a real-time alert when a security breach is detected. In this case, the contents of the security level related to the RFID in each document are preferably generated dynamically.

The content of the security level associated with RFID in each document can be generated dynamically, and the position for the placement of the secure RFID tag is preferably determined intelligently and randomly. In addition, the RFID detector has means for estimating a predetermined predetermined field for detecting a security breach, and the group level security characteristic assigned to the document is preferably position dependent.

Preferably, the RFID detector has a memory means for storing a security ID for alarm in case of a security breach, and the means for issuing a real-time alert includes a remotely activated bell and wirelessly transmitting a short message. It may include a device.

The printer device includes a multifunction device, and the application forming the content of the document may include a text search application, an OCR application, a set of dynamically updated security tags, and a built-in security tag. .

The sensor preferably has a simple logging device attached to collect infringement information, and the RFID attachment device may be configured as a unit separate from the printer device. And it is possible for the sensor to use an RF signal to activate the remote alert.

On the other hand, a method for generating and tracking a document printed with RFID (Radio Frequency Identifications) indicating a real-time alert upon security breach according to the present invention and indicating the content of the document, includes: (a) whether the document contains only text or only an image; Checking the file type to determine whether or not it is a combination of text and image, (b) determining an RFID number based on the check result and transmitting it to a driver, and (c) identifying the RFID location on the document. Determining and attaching, (d) printing the document with the RFID, (e) tracking the movement of the document using an RFID detector, and (f) issuing a real time alert in case of security breach. do.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

In addition, in order to broaden the understanding of the present invention, first, the system used in the related art will be described again with reference to FIGS. 1 and 2.

FIG. 1 is a block diagram showing the configuration of a transmitter combination communicating with a sensor, a decoder and a database server, and FIG. 2 is a diagram showing the position distribution of such units. The prior art describes that information can be stored in a tag, but does not describe how to generate such information. Rather, the prior art focuses on IDs such as md5 sum. This ID is detected by the RFID pager, and the information can then be sent to a central data processing system for analysis after using the wireless link and used to track the document.

One disadvantage of such a system is that md5 sum is not directly related to document security. If the detector needs to find out whether the location of the current document is valid, the detector always needs to communicate with the database server. However, the sensor of the present invention has a one-time programmable memory that can be used to store the group ID. One-time programmable memory helps sensors that have lost communication to function when sensors cannot access a centralized data server. The RFID generated upon copying of the document is a part specific to the location where the document is believed to exist. Each sensor will have specific components stored in the sensor. If a particular part of the document's RFID does not match a valid ID present on the sensor, the sensor can generate an alert without communicating with the centralized data server. Normally, the sensor simply sends RFID to the server using the ID as well as the location of the security sensor to detect that the security is breached, and takes a countermeasure.

Referring now to Figure 3, it will be described the operation of the system according to an embodiment of the present invention. As shown in FIG. 3, the host device 300 includes an application in which a hard copy is to be generated, and a printer device 400 capable of receiving RFID information from the host device 300. . The RFID attachment device 430 is coupled to the printer device 400, which instructs the RFID attachment device 430 of the location and contents of the RFID. In addition, the system includes an RFID detection system (not shown) capable of recognizing a security / effective location tag or the generalized form above, which can raise a security alert.

An application residing on the host device 300 may be a security tag that can be dynamically updated, for example, with the document's content being a document retrieval application, an optical character reorganization (OCR) application, or a combination of both and the original security tag. It may be a set of. The host device 300 may be a printer, multifunction device, or host computer. Another embodiment of the system according to the invention is shown in FIG. 4, where the RFID attachment device 430 is located behind the print engine 420.

The printer driver 310 is a device driver for starting a print job. RFID is generated at the driver level. First, the document is tested to verify its shape. If the document is a text document, the printer driver 310 searches for a security tag present in the document. If the document is not text based, a means such as watermark detection or OCR is used to confirm the security level of the document, and the security level can be increased by the user's operation. If the administrator presets the effective location ID for the security level, the same can be assigned to the part of the document.

The other part of the RFID is assigned one number, which will be the unique number for the document. Hereafter, the RFID and certain details of the document communicate with the centralized server. Based on the administrator's settings, the document or part of the document will be sent to the centralized server. In addition, the printer driver 310 checks the position of the RFID tag in the current document. Using the fact that the tag is not printed in the empty space of the document, the position of the RFID tag in the current document is identified. In documents with multiple pages, the printer driver 310 arbitrarily changes the position of the ID to maximize the likelihood that the RFID will be attached to the important part of the document. If longer tags are used, the tags are always attached perpendicular to the text line of the document.

The second block of the printer device 400 is the RFID attachment device 430 or the print engine unit 420. If the RFID attachment device 430 is present behind the print engine 420, the RFID attachment device 430 will receive the content and location of the ID from the printer driver 310 via the print engine 420. If the RFID attachment device 430 is present in front of the print engine 420, the paper is not discharged until the information is obtained from the print engine 420.

After a trusted user authenticates his or her ID in the system, while generating the ID, the user can select the security level of the document by appropriate means such as an OCR or watermark detector. If necessary, it is also possible to log these events on a secure server. The user may also select entries in fields related to other locations in the document. For example, research documents are valid in R & D departments and conference halls, but not in delivery departments. Entries in these fields depend on the automatically generated security fields. Since the system according to an embodiment of the present invention includes a printer device 400 capable of detecting the final position where data is to be printed, the RFID attachment position can be arbitrarily indicated, and by removing the predetermined amount of data loss. Will result.

5 is a flow chart provided to explain a method of attaching RFID to a document in a system according to one embodiment of the invention. If there is a request to print a document from the application (S500), the file type is first checked (S505) to check whether the document includes only text, only an image, or a combination of text and an image. If the document contains only text, the RFID number is determined based on the security level and the document tag (S510). If the document contains only the image, the RFID number is determined based on the document tag and security level using OCR or watermark detection (S520). If the document includes both text and images, the RFID number is determined in consideration of both (S515).

If the RFID number is determined, the RFID number is transmitted to the driver (S525). Subsequently, the RFID position is determined, and a print job is performed (S5300. In this manner, the output of the document can be obtained.

The present invention is based on the concept of a security tag printed on RFID tags attached to a document. The printing system, along with the security tag, generates RFID related to general tracking areas such as user ID, original IP, and the like. A very simple detector with minimal memory can remember the security ID and generate an alert when a security breach is detected. Sensors with minimal intelligence are provided to detect the effective location of each document detected. This allows the sensor to detect security breaches without communicating with the server, and its ID is used as a measure of security breaches. Subsequently, the device may notify people of a beep by using a remote bell, or may be notified by a device that can transmit a beep in real time, such as a device that can transmit a short message over the air.

In another embodiment of the present invention, the sensor comprises a simple logging device attached to the sensor to collect intrusion information. Sensors can have better network performance to increase intrusion alerts, and can use RF signals to trigger distant alarms.

In another embodiment of the invention, the RFID placement device has a structure separate from the printer. However, this arrangement can lead to security problems.

In another embodiment of the present invention, content analysis is performed at the host or peripherals thereof. On the other hand, the host for storing the application includes, but is not limited to, a computer, a printer or a multifunction device.

As described above, according to the present invention, it is possible to generate and track a printed document provided with Radio Frequency Identifications (RFID) informing the contents of the document, and to generate a real-time alert in case of a security breach.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (13)

 In the system for generating and tracking printed documents with RFID (Radio Frequency Identifications) that informs the contents of the documents, and for real-time alarm in case of security breach, A host device in which applications forming the contents of the document are stored; A printer device which receives information from the host device and instructs the position and contents of the RFID; An RFID attachment device coupled to the printer device, the RFID attachment device attaching the RFID to the document according to the instructions of the printer device; And And a plurality of RFID detectors for recognizing an effective location tag indicative of the location of the document and for providing a real-time alert when a security breach is detected. The method of claim 1, The content of the security level associated with RFID in each document is generated dynamically.  The method of claim 1, The location for placement of the secure RFID tag is intelligent and randomly determined.  The method of claim 1, And said RFID detector comprises means for estimating a predetermined predetermined field for detecting a security breach.  The method of claim 1, The group level security characteristic assigned to a document is location dependent.  The method of claim 1, And the RFID detector has a memory means for storing a security ID capable of alerting in case of a security breach.  The method of claim 1, The means for issuing a real-time alert includes a remotely activated bell and a device capable of transmitting a short message over the air. The method of claim 1, And the printer device comprises a multifunction device. The method of claim 1, The application for forming the content of the document includes a text search application, an OCR application, a set of dynamically updated security tags, and a built-in security tag.  The method of claim 1, And the sensor has a simple logging device attached to collect infringement information. The method of claim 1, And said RFID attachment device is a unit separate from said printer device.  The method of claim 1, And the sensor uses an RF signal to activate a remote alarm.  In the method for generating and tracking a document printed with RFID (Radio Frequency Identifications) indicating a real-time alert in case of a security breach and indicating the content of the document, (a) checking the file type to determine whether the document contains only text, only images, or a combination of text and images; (b) determining an RFID number based on the check result and transmitting the RFID number to a driver; (c) determining and attaching an RFID location on the document; (d) printing the document with the RFID; (e) tracking the movement of the document using an RFID detector; And (f) issuing a real-time alert upon security breach.

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