KR200391224Y1 - System for preventing missing product using rfid-chip - Google Patents

Abstract

The present invention relates to an anti-lost loss prevention system using an active RFID chip, and stores unique identification information consisting of owner information and mutually discernable code information according to a request of the RF reader 200 below. A plurality of tags 100 for transmitting a confirmation signal for the positioning command signal; And registering the tag 100 based on code information through wireless communication, storing the owner's information received from the owner in the tag 100, and setting a maximum allowable distance for each tag 100. Al fritter 200; It consists of.

According to the present invention having the configuration as described above, the real-time distance between the tag attached article and the RFID reader through the R tag reader registered and managed with a plurality of tags attached to the object that the owner wants to manage By identifying the maximum allowable distance for each tag and identifying the deviation of the maximum allowable distance for each of the tags, it is possible to more effectively prevent the loss of goods.

Description

Lost and Found prevention system using active RFID chip {SYSTEM FOR PREVENTING MISSING PRODUCT USING RFID-CHIP}

The present invention relates to a system capable of preventing the loss of various objects by using a wireless communication transmission and reception method, and more particularly, to a tag containing an active RFID chip and an anti-lost system using an RFID reader managing the same. .

Representative systems for preventing the loss of the related art and methods thereof are disclosed in Korean Patent Registration No. 10-0325780 (hereinafter referred to as "prior patent").

The preceding patent is a method for preventing loss and loss of goods by using a system having at least one user computer and a server computer connected through a computer network, wherein the server computer is a product identification number provided by a partner company A buyer database that stores the personal information of each buyer, a acquirer database that stores the personal information of the learner who can search the buyer database, an authentication program for authenticating the acquirer, and the personal information of the buyer corresponding to the input product unique number. Including a search program for outputting, the acquirer registered in the acquirer database is connected to the server computer to be authenticated according to the authentication program, and the certified acquirer is the product unique number of the item lost or worn by Mia Typing the step The purchaser identifying information in the database that match buyers and the product serial number, type, depending on the scanning program includes a step of outputting a seupdeukja.

Although the prior patent as described above prevents the occurrence of lost items through a method of searching for the unique number of the product, this is related to passive post-processing after the lost items cannot be prevented, and moreover, the operation of such a system is prevented. There is a problem that the steps for the complex, and also takes a considerable cost to build the system.

An object of the present invention, which was devised to solve the above problems, to provide a system for preventing a lost object using an active RF ID chip that can prevent the occurrence of lost items in advance.

The present invention for achieving the above object, the present invention relates to an anti-lost loss prevention system using an active RFID chip, the unique identification consisting of the owner's information and mutually identifiable predetermined code information in response to the request of the RF Frieder 200 below. A plurality of tags 100 for storing information and transmitting confirmation signals for the following positioning command signals; And registering the tag 100 based on code information through wireless communication, storing the owner's information received from the owner in the tag 100, and setting a maximum allowable distance for each tag 100. Al fritter 200; Including, the RF reader 200 transmits a periodic positioning command signal to the tag 100 through wireless communication, and receives a confirmation signal corresponding to the positioning command signal from the tag 100, A distance is calculated based on the signal strength of the received confirmation signal, and whether the calculated distance is outside the maximum allowable distance preset in the tag 100 and the tag 100 for which the confirmation signal is not received are identified. The results are output to the owner as predetermined output information.

Preferably, the tag 100 stores the unique identification information, the RFID chip 110 for transmitting a positioning signal corresponding to the positioning command signal, and a power supply unit 120 for supplying power required for operation. And, it characterized in that it comprises an antenna 101 made of a coil form.

Also, preferably, the RF reader 200 may include an antenna 201, a transceiver 210 configured to perform wireless communication with the tag 100, and measure signal strength of a received signal. Including a function button input unit 220 for detecting a predetermined pressing signal by the owner, an output unit 230 for outputting the output information in the form of a text or voice, and a power supply unit 240 for providing power for operation And a microprocessor 250 for performing a control operation by predetermined operating software stored in the internal memory.

Also preferably, the operation software is characterized in that it includes a function that can calculate the distance based on the strength of the predetermined signal measured by the transceiver 210.

Also, the predetermined output information may include code information, a predetermined maximum allowable distance of the tag 100 corresponding to the code information, and a calculated distance.

Also preferably, after the output information is output to the owner, if there is a location tracking request for the tag 100 outside the maximum allowable distance,

In addition, the RF reader 200 may periodically receive a confirmation signal for the positioning command signal and output the distance of the tag 100 outside the maximum allowable distance to the owner in real time.

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Hereinafter, with reference to the accompanying drawings will be described in detail the present invention. Before describing the present invention in detail, it should be noted that the detailed description of well-known functions and configurations related to the present invention may be omitted if it is determined that they may unnecessarily obscure the subject matter of the present invention. . Referring to Figures 1a and 1b with respect to the lost property prevention system using an active RFID chip according to an embodiment of the present invention is as follows. Figure 1a is a conceptual diagram showing a lost or lost prevention system using an active RFID chip according to an embodiment of the present invention, Figure 1b is a block diagram showing a lost and lost prevention system using an active RFID chip according to an embodiment of the present invention. .

As shown in FIGS. 1A and 1B, a lost-loss prevention system using an active RFID chip (hereinafter, referred to as a "lost-loss prevention system") includes a tag 100 having unique identification information and a radio communication (RF). And an RF reader 200 which reads and decodes in a manner. Lost and found prevention system having such a configuration uses an RF (Radio Frequency Indentification) system to achieve the characteristic purpose (prevention of lost) of the present invention. The so-called RFID system is also referred to as a smart tag due to the characteristic operation of RFID, and as is well known, the RFID system is a thin flat RF ID attached to an object in a non-contact manner through a radio signal of a predetermined frequency band. A system for identifying and processing a tag (RFID tag), comprising an RFID (RF) reader (reader) that performs reading and decoding functions, a tag for storing unique identification information, and predetermined operating software. In some cases, a separate wired / wireless communication system is further included.

In this regard, the tag 100 according to the characteristic aspect of the present invention, as shown in Figure 1b, stores the unique identification information in accordance with the request of the following RF reader 200 and the confirmation signal to be described below An RFID chip 110 for transmitting, a power supply unit 120 for supplying power for operation, and an antenna 101 made of a thin thin plate coil. Here, a tag that transmits an RF signal from the tag itself, such as the tag 100 of the present invention, and receives power for all operations from its power supply unit 120 is referred to as an active tag. The tag 100 may be attached to an object to be managed by the user in various forms.

For reference, a passive tag distinguished from an active tag reflects a radio signal received from a reader (reader) and uses the induced current generated in the antenna 101 by the radio signal to operate. Has the characteristic of generating the required power. Of course, the passive tag is easier to maintain and manage than the active tag, but in order to generate power, the distance between the tag and the reader should be within 0.16λ (lambda wavelength), which is inductively coupled. The low frequency must be utilized, and therefore, the communication distance is very short within 1m. Accordingly, the tag 100 according to the characteristic aspect of the present invention is preferably set in an active tag method having a wider communication effective distance (typically 3 m or more, but up to 50 m or more depending on the power supply). In the present embodiment, the unique identification information is set to be information about the owner of the object and predetermined code information in which each tag 100 can be mutually identified, but the present invention is not limited thereto.

In addition, as illustrated in FIG. 1B, the RF reader 200 performs a wireless transmission / reception function with the above-described tag 100 and transmits / receives 210 to measure signal strength of a predetermined signal, and Although not provided, the input unit 220 including a plurality of function buttons to detect the pressing signal for this, the output unit 230 for outputting information related to the operation in the form of a text or voice, and to provide power for operation It is composed of a power supply unit 240, and a microprocessor 250 for controlling the components of the RF reader 200. In addition, an antenna 201 is further provided for smooth transmission and reception of a wireless signal through the transceiver 210. Herein, the antenna 201 may be set to various types of antennas installed outside or inside the RFID reader 200. In this embodiment, the output unit 230 will be set to a display such as an LCD and a small speaker such as a buzzer, but the present invention is not limited thereto.

According to an aspect of the present invention having the above-described configuration, the RFID reader 200 may store information of an owner in each tag 100 through wireless communication under the control of the microprocessor 250. Each tag 100 may be registered and managed based on unique identification information. Here, the information of the owner is information received through the input unit 220, this information may be registered and stored in the internal memory of the microprocessor 250 may be used repeatedly. For reference, the RF reader 200 is based on the final standard (6.3.4 Anti-collision Parameters of 18000-7) of the International Organization for Standardization / ISO (IEC). Up to 3,000 can be registered and managed without any logical conflict. Therefore, the user can manage up to 3,000 items he wants to manage. Of course, the upper limit of the number is obviously fluctuated by technological development, so the present invention is not limited to the upper limit.

In addition, the RF reader 200 according to another aspect of the present invention, may transmit a positioning command signal to the registered tag 100 through the transceiver 210 at predetermined time intervals, the location confirmation Each tag 100 receiving the command signal transmits a confirmation signal. In this case, the identification signal transmitted from each tag 100 includes unique identification information, and the RF reader 200 receiving the measurement signal strength of the confirmation signal received through the transmission and reception unit 210 and Based on this, the distance between the RF reader 200 and each tag 100 is calculated. When the tag 100 that deviates by more than a predetermined distance (maximum allowable distance) is identified through the distance calculation, the identification information, the calculated distance, and a predetermined warning sound of the corresponding tag 100 are output to the output unit 230. . Therefore, the user can easily know whether the object attached to the tag 100 is separated. Here, each of the tags 100 may be individually set by predetermined numerical information (maximum allowable distance) input by the user through the input unit 220, and thus the user may set the tag 100 of the object to which the tag 100 is attached. The maximum allowable distance can be set flexibly.

And the RFID reader 200 according to another aspect of the present invention, the tag 100 is not received from each of the registered tag 100, the confirmation signal for the positioning command signal as described above and The identification information of the tag 100 that is out of the maximum allowable distance is output to the output unit 230 in a list format, and among the tags that are out of the maximum allowable distance, the tag that the user wants to track the position through the input unit 220 is If selected, the tracking mode for the tag 100 is performed. Such a location tracking mode means that a real-time distance calculation is performed based on the signal strength as described above by continuously receiving a confirmation signal for the positioning command signal. The tracking is possible while moving to the object to which the tag 100 is attached. In the present embodiment, the function related to the distance calculation is preferably included in the operating software stored in the memory in the microprocessor 250.

Lost and found prevention system according to an embodiment of the present invention having the above-described configuration and features, is not a way to take a predetermined action after the item is lost as in the prior art, and identify a lot of things that are likely to be lost Since it can manage, it has a characteristic which can prevent the loss of an object. An operation process of this characteristic function will be described in more detail with reference to FIGS. 2A to 2C. 2A is a flowchart illustrating a method for preventing lost and found using an active RFID chip according to an embodiment of the present invention, and FIGS. 2B and 2C are details of a method for preventing lost and found using an active RFID chip according to an embodiment of the present invention. It is a flow chart.

As shown in FIG. 2A, the microprocessor 250 of the RF reader 200 registers the tag 100 in a identifiable manner through wireless communication through the transceiver 210 (S210). More specifically, as shown in FIG. 2B, the microprocessor 250 reads the identification code information of the tag 100, registers and stores it in the internal memory (S212), and the user through the input unit 220. The information about the maximum allowable distance and the owner of the tag 100 is received from and stored in the tag 100 (S214, S216). Of course, through this step, the tag 100 that can be registered can be set up to 3,000 on a wide range of conditions that can be identified as described above without any logical collision.

In this case, the maximum allowable distance of the tag 100 set in step S214 is stored based on the identification code information of the tag 100 stored in step S212. Therefore, from the confirmation signal of the tag 100 corresponding to the periodic positioning command signal of the RF reader 200 to be described below, it is possible to determine whether the tag 100 is within a predetermined maximum allowable distance. In the present embodiment, the information on the owner can be variously set in a plurality of letters or numbers, or a combination of letters and numbers through the input unit 220, the present invention is not limited to the combination method. .

Next, the microprocessor 250 transmits a positioning command signal to the plurality of tags 100 previously registered through the transceiver 210, and transmits a plurality of tags to confirm a signal corresponding to the positioning command signal. Received from the (100) (S220, S230). Here, the positioning command signal, and when the tag 100 receives it and the RF reader 200 to transmit a confirmation signal consisting of a predetermined code including the unique identification information stored in the tag 100 and The command signal is negotiated between the tags 100. On the other hand, the microprocessor 250 that receives the confirmation signal from the plurality of tags 100 through the transceiver 210, based on the unique identification information contained in the received confirmation signal, the confirmation signal is a tag It is easy to identify whether it was transmitted from.

Thereafter, the microprocessor 250 identifying the aforementioned confirmation signal calculates a distance from the signal strength of each confirmation signal using internal operating software, and the calculated distance of each of the corresponding tags 100 is set. It is determined whether or not it is within the maximum allowable distance. In addition, the microprocessor 250 identifies the tag 100 missing the receipt of the confirmation signal in a list form by matching each received confirmation signal with the previously registered tag 100 (S240). Here, the tag 100 in which the confirmation signal reception is missed is out of a distance in which the confirmation signal reception is impossible due to exceeding a maximum allowable distance, or the tag 100 when the tag 100 is broken or inoperable. It can be estimated as

After the step S240, the microprocessor 250 includes, among the tags 100 whose distances are identified, information including identification code information and calculated distances for the tags 100 outside the maximum allowable distance, and / Or outputs a predetermined warning sound to the output unit 230 (S250). In this case, the information output through the output unit 230 includes not only the tags 100 that deviate from the maximum allowable distance, but also each of the plurality of registered tags 100, for example, "identification code information-maximum allowable distance-". It is preferable to output in the form of a list in the form of "current distance", and items of tags outside the maximum allowable distance and tags of which no confirmation signal is received are highlighted so as to be distinguished from other normal tags. It is desirable to be. Of course, such a series of subsidiary procedures (output in list form, highlighting) can be implemented by easily adapting or modifying the operating software included in the microprocessor 250 to those skilled in the art. This possibility is self-evident. In the present embodiment, each of the tags 100 pre-registered in the RF reader 200 is output to the user (owner) through the output unit 230 in the form of "identification code information-maximum allowable distance-current distance". Although set to, the present invention is not limited thereto.

On the other hand, in the list of the tag 100 output through the output unit 230, the user can select the specific tag (tag outside the maximum allowable distance) through the input unit 220, it is possible to track the location of the tag There is (S260). To this end, as shown in FIG. 2C, the microprocessor 250 transmits a periodic positioning command signal to the selected specific tag through the input unit 200 (S262), and then receives the confirmation signal received from the specific tag. Received (S264), by calculating the distance based on the signal strength of the received confirmation signal, and outputs a result for this to the output unit 230, while the owner (user) holding the RF reader 200 while moving The location of objects with specific tags can be located and tracked in real time. In the present embodiment, steps S262 to S266 are the same as steps S220 to S240 described above, and are described to illustrate a method for tracking a location of an object with a specific tag.

As described above, the lost-loss prevention system according to the present invention can easily grasp the distance between the RF readers 200 with respect to each of the objects to which the tag 100 is registered in advance. If there is a tag 100 outside the allowable distance, it can be identified by the owner, unlike the passive post-processing method that handles it after the loss of the object as in the prior art, it is possible to actively prevent the loss of the object in advance Has an advantage.

The present invention described above is possible to those skilled in the art to which the present invention belongs, various substitutions, modifications and changes can be made within the scope without departing from the spirit of the present invention and the above-described embodiments and attached It is not limited to the drawing.

According to the present invention as described above, the owner through the plurality of tags attached to the object to be managed and the R Alreader register and manage the tag, it is possible to determine the distance between the tag attached article and the R Alreader in real time. And, by setting the maximum allowable distance for each tag to identify whether the maximum allowable distance deviation for each of the tags, there is an effect that can actively manage things and prevent loss.

Figure 1a is a conceptual diagram showing a lost property prevention system using an active RFID chip in accordance with an embodiment of the present invention.

Figure 1b is a block diagram showing a lost property prevention system using an active RFID chip according to an embodiment of the present invention.

Figure 2a is a flow chart showing a method for preventing lost and found using the active RFID chip according to an embodiment of the present invention.

Figure 2b and Figure 2c is a detailed flowchart of the method of preventing the lost and lost using the active RFID chip in accordance with an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: TAG 101: antenna

110: RFID chip 120: power supply

200: Alprider 201: antenna

210: transceiver 220: input unit

230: output unit 240: power supply

250: microprocessor

Claims (8)

In the loss prevention system using active RFID chip, A plurality of tags (100) for storing unique identification information consisting of owner information and mutually identifiable predetermined code information according to the request of the RF reader 200, and transmitting a confirmation signal for the following positioning command signal. ); And Registering the tag 100 based on code information through wireless communication, storing the owner information received from the owner in the tag 100, and setting the maximum allowable distance for each tag 100 RF Frieder 200; Including, The RF reader 200 transmits a periodic positioning command signal to the tag 100 through wireless communication, receives an acknowledgment signal corresponding to the positioning command signal from the tag 100, and receives the received confirmation. The distance is calculated based on the signal strength of the signal, and whether the calculated distance is outside the maximum allowable distance preset in the tag 100 and the tag 100 in which the confirmation signal is not received are identified and the result is determined. Lost and found prevention system using an active RFID chip, characterized in that output to the owner of the output information. The method of claim 1, The tag 100, The RFID chip 110 stores the unique identification information and transmits a positioning signal corresponding to the positioning command signal, a power supply unit 120 for supplying power for operation, and an antenna 101 having a coil shape. Lost things prevention system using an active RFID chip, characterized in that it comprises a). The method of claim 1, The RF pile 200, A predetermined push signal by the owner, including an antenna 201, a transceiver 210 for measuring the signal strength for a predetermined signal received while performing wireless communication with the tag 100, and a plurality of function buttons An input unit 220 for detecting a signal, an output unit 230 for outputting the output information in the form of a text or a voice, a power supply unit 240 for supplying power for operation, and predetermined operating software stored in an internal memory. Loss and loss prevention system using an active RFID chip, characterized in that it comprises a microprocessor (250) for performing a control operation by. The method of claim 3, wherein The operation software, Loss and loss prevention system using an active RFID chip, characterized in that it includes a function to calculate the distance based on the strength of the predetermined signal measured by the transceiver 210. The method of claim 1, The predetermined output information, Lost and lost prevention system using an active RFID chip, characterized in that it comprises a code information, the predetermined maximum allowable distance, and the calculated distance of the tag 100 corresponding to the code information. The method of claim 1, After the output information is output to the owner, if there is a location tracking request for the tag 100 outside the maximum allowable distance, The RF reader 200 periodically receives an acknowledgment signal for the positioning command signal and outputs the distance of the tag 100 deviating from the maximum allowable distance to the owner in real time, using an active RFID chip. Lost & Found Prevention System. delete delete