KR20080017992A - Passive rfid with resistance, tag printed the passive rfid with resistance and flooring mounted passive rfid with resistance - Google Patents

Abstract

An passive RFID having a resistor, an RFID tag implementing the resistor in a print type, and flooring mounting the passive RFID are provided to print a resistor directly on the flooring material or make the passive RFID attachable to or detachable from the flooring material such that the RFID tags are conveniently exchanged and applied to pre-constructed flooring. An passive RFID comprises a resistor(21), an analog unit(22), a digital unit(23) and an antenna(24). The resistor(21) has a unique resistance value which is functioned as ID information. The analog unit(22), including a voltage multiplier, a demodulator and a modulator, generates the voltage used in driving an internal circuit, demodulates an instruction which comes from a reader, and transmits the resistance value to the reader. The digital unit(23), having a practical CPU function including a decoder and an encoder, analyzes the instruction which comes from the reader and encodes data to be transmitted to the reader. The antenna(24) performs both the general data transmission/receipt function and the coil function for receiving power.

Description

Passive RFID with resistance, tag printed the passive RFID with resistance and flooring mounted passive RFID with resistance}

1 is a schematic block diagram showing an automation system using a general RF ID;

2 is a conceptual diagram showing the configuration of a conventional passive ID;

3 is a conceptual diagram showing the configuration of a passive RF ID having a resistance according to the present invention;

4 is a conceptual diagram of an RFID tag implemented in a printed form of a passive RFID with a resistance according to the present invention;

5 is a view showing a state of printing a passive RFID tag of the present invention;

Figure 6 is a schematic cross-sectional view showing a floor mounted with a passive RF ID having a resistance according to the present invention;

Figure 7 is a schematic cross-sectional view showing a flooring material is installed RFID tag implemented passive RFID having a resistance according to the invention in the form of printing;

8 is a view for explaining the operation by the passive RF ID of the present invention.

※ Explanation of symbols about main part of drawing ※

20: RFID 21: resistance

22: analog portion 23: digital portion

24: antenna 30: tag

32: sheet 50: synthetic resin tile

60: flooring 70, 80: robot

72, 82: Reader

The present invention relates to a passive RF ID having a resistance, an RFID tag embodying it in a printed form, and a floor material having a passive RFID ID having a resistance.

Recently, as part of building an automation system for homes, offices, and factories, RFID (Radio Frequency ID) is formed on flooring materials (usually in the form of tags) or barcodes are printed on the flooring materials. A technology for enabling the mobile robot to operate autonomously using the position information from is developed.

For example, as shown in FIG. 1, the flooring material 2, in which a plurality of RFID tags 1a, 1b, and 1c are installed at regular intervals, is constructed, and the mobile robot 3 provided with the reader 4 is provided. Is placed on the flooring material 2, the mobile robot 3 receives information about the absolute coordinates from the RFID tags 1a, 1b, and 1c to quickly and accurately calculate the relative coordinates, the moving direction, and the moving distance. Will be autonomous.

RFID ID tags are classified into passive and active RFID tags by whether they have their own power supply.

That is, the passive RFID tag and the active RFID tag have substantially the same configuration, while the former does not have its own power supply, while the latter has its own power source.

The configuration of the RFID tag 10 will be described with reference to the passive type. As shown in FIG. 2, the chip and antenna 14 including the memory 11, the analog unit 12, and the digital unit 13 are illustrated. It includes. The RFID tag can rectify a portion of the power provided through the wireless to drive the internal circuit and transmit the tag information to the reader to enable the operation of the automation system.

Among the elements constituting the conventional RFID tag, the chip functions as a transponder, and the memory of the chip is sensitive to the external environment such as moisture and temperature change, causing damage or malfunction of the robot. There is concern.

In particular, the moisture due to the characteristics of the floor surface, and the cold and hot air due to the ondolbang structure is directly transmitted to the flooring material, thereby affecting the chips of the RFID tag installed on the flooring material.

Therefore, in the past, the above-mentioned problem was attempted to overcome the above problems by embedding RFID tags in the floor decoration material. However, when the embedded RFID ID tag is damaged, it is not easy to replace it. Of course, there was a problem that it is difficult to apply to the already installed floor decoration material.

Accordingly, the present invention is to solve the above-described problems, the resistance to the memory that is susceptible to the external environment, such as moisture and temperature changes to replace the easily damaged resistor to enable the implementation of a stable automation system, the resistance The purpose of the present invention is to provide a passive RFID having an ID, an RFID tag embodying it in a printed form, and a floor material having a passive RFID having a resistance installed thereon.

As a technical configuration for achieving the above object, the present invention is a passive RF ID for providing position information to a mobile robot, comprising a resistor configured to provide a unique resistance value as position information, passive type with resistance It is characterized by RFID.

In addition, the present invention is a passive RFID tag that is implemented in the form of a passive RFID ID providing a position information to the mobile robot in the form of a tag, the passive resistance having a resistance formed by printing the resistance providing a unique resistance value as the position information It is characterized by RFID tag which implemented RFID in print form.

In addition, the present invention is a flooring material having a passive RF ID for providing position information to the mobile robot, the passive RFID having a resistor installed in the selected position of the multiple layers of the resistor laminated to provide a unique resistance value as the position information Characterized by flooring installed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a schematic diagram showing a passive RF ID of the present invention.

The passive RF ID 20 of the present invention includes a resistor 21, an analog portion 22, a digital portion 23, and an antenna 24.

The resistor 21 is formed to have a unique resistance value and the resistance value serves as ID information.

The analog unit 22 includes a voltage multiplier, a demodulator, a modulator, and the like, wherein the voltage generator generates a voltage used to drive an internal circuit. The demodulator performs a function of demodulating a command from a reader, and the modulator transmits ID information of the resistor 21, that is, a resistance value, to the reader.

The digital unit 23 has a substantial CPU function including a decoder and an encoder. The decoder performs a function for interpreting a command from a reader, and the encoder is a reader. It encrypts the data sent to the network.

In addition, the antenna 24 performs a function as a general antenna for transmission / reception and a coil function for power reception.

As described above, the passive RF ID 20 of the present invention using the intrinsic resistance value of the resistor 21 as the ID information is sensitive to the external environment such as moisture and temperature change, and is easily damaged when compared to the conventional passive RFID. Instead, reliability can be improved by using a resistor that is less affected by the external environment.

This passive RFID of the present invention can be easily implemented in a printed form.

At present, the analog part, the digital part, and the antenna constituting the passive RFID can be substantially realized by printing using a conductive ink including ink, for example, a polymer and silver particles.

However, although the memory constituting the passive passive ID stores a few bits of ID information, the size of the memory is excessively large when it is implemented by printing with organic ink. It is virtually impossible to implement and commercialize a passive RFID with a memory by printing.

On the other hand, in the passive RFID of the present invention, all components are easily implemented in a printed form by using a resistor that can be easily implemented by printing instead of a memory. This printing type is implemented with different resistance values, for example, by adjusting the spacing of printing lines.

The passive RFID of the present invention may be implemented in a tag form, that is, RFID ID tag so as to easily remove and attach to the flooring material.

4 is a schematic configuration diagram showing an RFID tag 30 in which a passive RFID having a resistance according to the present invention is implemented in a printed form.

In the RFID tag 30 of the present invention, a passive RFID ID 20 having a resistance on the surface of the sheet 32 is implemented by printing. For convenience, only the resistor 21 and the antenna 24 of the components constituting the passive RFID 20 are illustrated, but the passive RFID 20 is substantially a resistor 21 and an analog unit 22 as described above. ), The digital unit 23 and the antenna 24, and unless otherwise described for the configuration of the passive RF ID 20 will have the same structure.

The RFID tag 30 is disposed in various places by varying the resistance value of the resistor 21, so that the mobile robot is provided with different ID information, that is, information about absolute coordinates, so that the relative coordinates, moving directions, and moving distances can be obtained. Compute quickly and accurately to allow autonomous movement

The RFID tag 30 as shown in FIG. 5 may be output in a form bonded to the upper portion of the release paper 42 by using a separate dedicated printer 40.

Passive RF ID having the resistance can be installed on the flooring in various forms.

6 is a cross-sectional view showing an example of a flooring material having a passive RF ID having a resistance according to the present invention.

According to this structure, the synthetic resin tile 50 of the form which laminated | stacked the flooring material, for example, the surface treatment layer 51, the transparent upper layer 52, the printing stop layer 53, the base layer 54, and the base layer 55 sequentially ), The passive RFID 20 of the present invention is installed by printing.

Preferably, the passive RFID 20 is implemented by printing between the printing stop layer 53 and the base layer 54.

7 is a view showing a passive RFID tag having a resistance attached to the bottom of the floor according to the invention.

Flooring material 60 such as cerium, flooring, tiles, and the like usually has a configuration in which a top layer, a middle layer, and a bottom layer are sequentially stacked, and the passive RFID ID tag 30 is adhered to a lower surface of the flooring material 60. Is installed by.

This configuration is easy to maintain by allowing the passive RFID tag 30 is damaged during use of the flooring material 60, only the damaged RFID tag can be removed from the flooring material and replaced with a new one. In particular, it can be easily applied to flooring that is already manufactured or constructed, as well as newly produced flooring.

Figure 8 is a view showing a state in which the autonomous mobile robot moves the flooring material is installed passive passive ID having a resistance according to the present invention.

RF ID 20 is installed on the flooring material, for example, the synthetic resin tile 50, and the mobile robot 70 provided with the reader 72 receives information about the absolute coordinates caused by the resistance of the RF ID 20. Coordinates, moves direction, moves distance and so on autonomously moves. The mobile robot 70 uses a wheel as a moving means.

In addition, the mobile robot 80 using the walking leg as a moving means is also autonomously moved by receiving information of the RF ID 20 recognized through the reader 82. In particular, the resistance provided in the RF ID 20 of the present invention is a passive RF ID having a longer effective recognition distance than the barcode, and a mobile robot suitable for barcode recognition, that is, a mobile robot 70 using wheels as a means of movement. Of course, it is possible to use the mobile robot 80 with the walking leg as a means of movement.

As described above, a passive RFID having a resistance according to the present invention, an RFID tag embodying it in a printed form, and a flooring having a passive RFID having a resistance installed thereon have the following effects by adopting a resistance instead of a memory.

First, a stable automation system can be realized by replacing a memory, which is susceptible to external environments such as humidity and temperature changes, with a resistance that is not easily damaged.

Next, various configurations may be installed to directly print a resistor on the flooring material or to install a removable RFID ID in the form of a tag in which the resistance is printed on the flooring material. In particular, the RFID in the form of a tag not only facilitates the exchange of the damaged, but also can be applied to the flooring which is completed or already constructed.

In addition, it has both the advantages of a low-cost, easy-to-apply bar code, and the advantages of a conventional passive RFID which has an effective recognition distance longer than that of a bar code.

Claims (7)

Passive RF ID that provides location information to mobile robot, Passive RF ID having a resistance, characterized in that it comprises a resistance formed to provide a unique resistance value as position information. The passive RFID having a resistor according to claim 1, wherein the resistor is implemented in a printed form. Passive RF ID tag that provides location information to mobile robot in the form of tag. An RFID tag embodying a passive passive ID having a resistance in a printed form, characterized in that a resistance is provided by printing to provide a unique resistance value as positional information. As a flooring material having a passive RF ID for providing position information to a mobile robot, A passive floor ID having a resistance, characterized in that the resistance to provide a unique resistance value as the location information is installed at a position selected from a plurality of layers of the flooring of the laminated form sequentially. 5. The flooring of claim 4, wherein the resistor is implemented by printing. 5. The flooring according to claim 4, wherein the resistance is implemented on the tag surface by printing and the tag is detachably attached to the floor. The flooring material of claim 4, wherein the resistance is output in a form bonded to the upper part of the release paper by using a printer.

Images