JP6306258B1 - IC tag system - Google Patents

Abstract

An object of the present invention is to increase the capacity and use of a system by increasing the capacity of an IC tag battery. An IC tag system A includes an IC tag 100 and an IC tag reader built-in portable information terminal 1 capable of receiving data transmitted from the IC tag 100 in a contactless manner. In the IC tag 100, an IC tag chip 130, a communication antenna 120, and a battery 140 are provided on the substrate 110. A capacitor having a structure in which a dielectric layer 142 is sandwiched from above and below by conductor layers 141 and 143 is provided as a battery 140 on the substrate 110. Metal fine particles 1411 and 1431 are attached to the conductor layers 141 and 143 over the entire surface in order to increase the effective area. [Selection] Figure 1

Description

  The present invention relates to an IC tag system including an IC tag (ID tag) fixed to an object and a portable information terminal with a built-in IC tag reader capable of receiving data transmitted from the IC tag in a contactless manner.

  The IC tag used in this type of system includes an active type equipped with a battery (primary battery), and a passive type having a function of generating drive power by receiving electromagnetic wave (carrier wave) power from a reader / writer. (See Patent Document 1 for the active type and Patent Document 2 for the passive type).

JP 2005-316724 A JP-T-2006-503376

  However, the following problems have been pointed out regardless of whether the active type or passive type is used as the IC tag of the RFID tag system. That is, when an active type IC tag is used, it is difficult to reduce the size and thickness of the IC tag and use it for a long time in terms of the battery. On the other hand, when a passive IC tag is used, it is difficult to mount a high-performance circuit with high power consumption because large power cannot be generated from electromagnetic waves. As described above, the conventional IC tag has the above-mentioned drawbacks relating to the battery, and the present situation is that the application range and use of the system are greatly restricted in this respect.

The present invention was been created under the background described above, the primary object is to provide an IC Tagushisute beam capable of expanding the scope and application of the system by increasing the capacity of the battery of the IC tag It is in.

An IC tag system according to the present invention is an IC tag system capable of receiving data transmitted from an IC tag fixed to an object by a portable information terminal with a built-in IC tag reader in a non-contact manner . at least IC tag chip, provided a communications antenna to a substrate and the battery is provided inside the substrate, the inside the substrate, the capacitor dielectric layer is vertically sandwiched between the conductive layer structure is provided as the battery, The communication antenna is a batch antenna having a solid ground, and the solid ground is shared with one of the conductor layers .

In the case of such an IC tag system, since the battery is provided in the substrate for mounting the IC tag chip or the like in the IC tag, it is easy to reduce the size and thickness of the IC tag itself. . In addition, since the capacitance is used as the battery, it is possible to easily increase the capacity of the battery by reducing the electrode interval. Therefore, the disadvantage inherent in the conventional IC tag is solved, and accordingly, the application range and application of the system can be greatly expanded. Further, the internal structure of the substrate is simplified, and accordingly, the cost of the IC tag itself can be reduced.

  Preferably, the conductor layer constituting the capacitor may have a structure in which metal fine particles are adhered over the entire surface in order to increase the effective area.

  In the case of the IC tag system configured as described above, it is possible to further increase the capacity of the battery by increasing the electrode area of the capacitor.

As for the portable information terminal with a built-in IC tag reader, an IC tag reader comprising an IC tag reader chip having a reading function of the IC tag and an IC tag communication antenna connected to the IC tag reader chip is used as the information terminal. A configuration built in the main body is preferable.

In the case of the IC tag system having the above-described configuration, the portable information terminal with a built-in IC tag reader has an IC tag reading function, which improves usability.

  Preferably, the IC tag reader is powered by a power source in the information terminal main body, is operated by an IC tag dedicated reading application installed in the information terminal main body, and displays the information terminal main body. The reading result of the IC tag may be displayed on the part.

In the case of the IC tag system having the above configuration, the function of the information terminal main body is fully utilized to display the read result of the IC tag, so that the configuration of the IC tag reader is made simple and inexpensive. Is possible.

  Preferably, the IC tag reader is configured to be attached to the front surface when the foldable information terminal body is folded.

In the case of the IC tag system having the above-described configuration, the IC tag reader can be easily read by attaching the IC tag reader to the front surface when the foldable information terminal body is folded. It is also possible to attach an IC tag reader to the sub-display portion on the front surface of the commercially available foldable information terminal main body.

  Preferably, the information terminal main body may be configured to be accessible to the website based on the website access information read from the IC tag by the IC tag reader.

In the case of the IC tag system configured as described above, it is possible to access the website based on the website access information read from the IC tag by the IC tag reader, thereby receiving information distributed from the website. As well as being able to transmit information to the Web site, work efficiency is very high and it becomes very convenient.

(A) is a schematic block diagram of the IC tag system which concerns on embodiment of this invention. FIG. 2B is a configuration diagram of an IC tag constituting the IC tag system. (A) is a schematic block diagram of the portable information terminal with a built-in IC tag reader constituting the IC tag system. (B) is a top view of the communication antenna for IC tags of the same machine. It is explanatory drawing which shows the attachment position of the IC tag reader in the portable information terminal with the same IC tag reader. It is a figure for demonstrating the modification of the portable information terminal with a built-in IC tag reader, and is an explanatory view showing a state where a web site is accessed by the machine.

  Hereinafter, an embodiment of an IC tag system according to the present invention will be described with reference to FIGS. As shown in FIG. 1A, an IC tag system A exemplified here includes an IC tag 100 fixed to an article 200 such as a transported article, article transportation information transmitted from the IC tag 100, and the like. And a portable information terminal 1 with a built-in IC tag reader capable of receiving data relating to contactless. Here, a foldable mobile phone is assumed as the portable information terminal 1 with a built-in IC tag reader, but it may be replaced with a portable wireless terminal such as a smartphone, iPad (registered trademark), or a tablet computer.

The portable information terminal 1 with a built-in IC tag reader has a configuration in which the IC tag reader 4 is built in the information terminal main body 5. The IC tag reader 4 includes an IC tag reader chip 2 having a reading function of the IC tag communication antenna 3 and the like, and an IC tag communication antenna 3 connected to the IC tag reader chip 2, and ISO / IEC15963 and ISO As shown in FIG. 2 (a), the IC tag reader 4 using the one conforming to / IEC14443 is supplied with power by the battery and the power circuit (power source) in the information terminal main body 5, An IC tag read application (software for IC tag reader installed in the information terminal main body 5) installed in the information terminal main body 5 is operated, whereby the IC tag received by the IC tag communication antenna 3 is operated. The data of the tag 100 is read and the read result is displayed on the display 7 (display unit) of the information terminal main body 5.

  Here, as shown in FIG. 3, the IC tag reader 4 is attached to the front face 6 when the information terminal main body 5 is folded, specifically, to the sub-display. The sub-display part may be removed and the IC tag reader 4 may be attached.

  As the IC tag communication antenna 3, an antenna having an antenna diameter of about 2 cm × 2 cm is used here as shown in FIG.

  As for the IC tag 100, as shown in FIG. 1B, an IC tag chip 130, a communication antenna 120, and a battery 140 are provided on a substrate 110. The communication antenna 120 is connected to the communication output line of the IC tag chip 130, and the battery 140 is connected to the power supply line of the IC tag chip 130. That is, the communication antenna 120 receives the radio wave transmitted from the IC tag reader built-in portable information terminal 1 or the like, and the received power is rectified by the IC tag chip 130 and output to the battery 140. The IC tag chip 130 can be driven by a DC voltage output from the battery 140. Here, a semi-active type is used, but a passive type or an active type may be used. The battery 140 corresponds to a power capacitor in the case of a passive type, and corresponds to a driving battery in the case of an active type.

As the substrate 110, a multilayer substrate whose material is a silicon single crystal or the like is used here. The conductor portion 121 of the communication antenna 120 is patterned at the center of the upper surface of the uppermost layer, and the IC tag chip 130 is mounted around the conductor portion 121. Inside the substrate 110, as shown in the partially enlarged sectional view in FIG. 1B, a dielectric layer 142 such as barium titanate is sandwiched from above and below by conductor layers 141 and 143 such as copper. A capacitor having a structure is provided as the battery 140.

Here, a batch antenna having a solid ground is used as the communication antenna 120, and the solid ground is shared with the conductor layer 141. That is, the entire surface of the conductor layer 141 is the solid ground, and the batch antenna is constituted by the conductor portion 121 and the conductor layer 141. The antenna frequency is assumed to be 13.56 MHz, 860 to 960 MHz, 2.4 GHz, or the like. However, for a lower frequency band such as 125 kHz, a spiral antenna or the like may be used instead of a batch antenna.
Metal fine particles 1411 and 1431 are attached to the lower surface of the conductor layer 141 and the upper surface of the conductor layer 143 over the entire surface in order to increase the effective area as an electrode of the capacitor. On the other hand, buffer layers 1412 and 1432 such as ZrO ₂ are respectively formed on the upper surface of the conductor layer 141 and the lower surface of the conductor layer 143 in order to prevent reaction with the silicon single crystal constituting the substrate 110.

  The metal fine particles 1411 and the like are metal particles having a particle size of about 200 to 2000 nm and the same material as the conductor layer 141 and are formed on the surface of the conductor layer 141 and the like while controlling the particle size by sputtering or the like. . The number of particles stacked is about 5 layers, and is compositely stacked to a thickness of about 1 μm to 2 μm (FIG. 1 (b) schematically shows an example of one layer). In this case, the effective area of the capacitor electrode can be increased several hundred times. In addition, if the dielectric layer 142 is changed to a high dielectric constant material or the electrode spacing between the conductor layer 141 and the conductor layer 143 is reduced, the amount of electric energy stored in the battery 140 can be further increased. Is possible.

  Note that the magnetic resistance of the metal fine particles 1411 is different from that of the conductor layer 141 and the like, for example, a soft magnetic material such as iron-cobalt alloy or a manganese resistance such as a manganese oxide, and the magnetic resistance is extremely low at room temperature. High materials may be selected. In this case, it is possible to further increase the amount of electric energy stored in the battery 140 due to the current collection effect of the magnetic field.

  In the case of the IC tag system A configured as described above, since the battery 140 is provided in the substrate 110 for mounting the IC tag chip 130 and the like in the IC tag 100, the IC tag itself is small. It is easy to reduce the thickness. In addition, a capacitor is used as the battery 140, and the capacity can be further increased by increasing the electrode area. Therefore, the drawbacks inherent in the conventional IC tag have been eliminated, and accordingly, the application range and application of the system can be greatly expanded.

  The IC information reader built-in portable information terminal 1 used in such an IC tag system A has a reading function of the IC tag 100 in addition to the original telephone communication function. That is, when the information terminal main body 5 is turned on, the IC tag reader 4 is energized, and an IC tag dedicated reading application is activated by a key operation of the information terminal main body 5. In this state, when the portable information terminal 1 with a built-in IC tag reader is brought close to the IC tag 100 fixed to the article 200, for example, about several millimeters to 2 cm, the data related to the article transportation information transmitted from the IC tag 100 is IC. The data read by the tag reader 4 is displayed and output on the display 7.

  In this way, the IC tag 100 can be read using the mobile phone owned by itself without using the reader / writer of the IC tag 100. The reading operation of the IC tag 100 becomes easy and the usability is improved in this aspect. Moreover, since the IC tag reader 4 has realized the reading function of the IC tag 100 by fully utilizing the functions (power supply, software processing and data display output) of the information terminal main body 5, The configuration is simplified, and as a result, the cost of the portable information terminal 1 with a built-in IC tag reader can be reduced.

Next, a modification of the portable information terminal 1 with a built-in IC tag reader will be described with reference to FIG. Specifically, when the IC tag reader 4 includes the website access information in the data read from the IC tag 100 by partially changing the design of the IC tag dedicated reading application, the website is based on the information. Make 400 accessible.
Therefore, when the website read information is included in the data read from the IC tag 100, the website 400 is accessed, and the information transmitted from the website 400 is displayed and output on the display 7. In this state, information can be transmitted to the Web site 400 through the operation input of the information terminal main body 5. Accordingly, the work efficiency related to the article 200 is increased and it becomes very convenient.

  The IC tag system according to the present invention is not limited to the above embodiment. For example, regarding the IC tag, the IC tag chip or the communication antenna may be provided inside the substrate, or a plurality of capacitors as a battery may be provided, and the design may be changed to a form in which these are connected in series / parallel. The portable information terminal with a built-in IC tag reader may be applied to a dedicated device for a reader / writer of an IC tag in the same manner as described above.

A IC tag system 1 Mobile information terminal with built-in IC tag reader 4 IC tag reader 2 IC tag reader chip 3 Communication antenna for IC tag 5 Information terminal main unit 7 Display (display unit)
100 IC tag 110 Substrate 120 Communication antenna 130 IC tag chip 140 Battery (capacitor)
141 Conductor layer (solid ground)
142 Dielectric layer 143 Conductor layer 1411,1431 Metal particles

Claims (6)

In an IC tag system in which data transmitted from an IC tag fixed to an object can be received by an IC tag reader built-in portable information terminal in a non-contact manner , the IC tag includes at least an IC tag chip and a communication antenna on a substrate. provided, and the battery is provided inside the substrate, the inside the substrate, the capacitor structure dielectric layer is vertically sandwiched between the conductive layer is provided as the battery, communication antenna, have a base tag round An IC tag system , wherein the solid ground is shared with one of the conductor layers .   2. The IC tag system according to claim 1, wherein metal fine particles are adhered over the entire surface of the conductor layer constituting the capacitor in order to increase an effective area thereof. 3. The IC tag system according to claim 1, wherein the portable information terminal with a built-in IC tag reader includes an IC tag reader chip having a reading function of the IC tag, and an IC tag communication connected to the IC tag reader chip. An IC tag system comprising an IC tag reader having an antenna built in an information terminal main body. 4. The IC tag system according to claim 3 , wherein the IC tag reader is powered by a power source in the information terminal main body, and is operated by an IC tag dedicated reading application installed in the information terminal main body. An IC tag system configured to display a reading result of the IC tag on a display unit of an information terminal main body. According to claim 3 or 4 IC tag system, wherein the IC tag reader, an IC tag system, characterized in that attached to at the front portion during the folding of the folding information terminal body. In the IC tag system according to any one of claims 3 to 5, wherein the information terminal body, based on the Web site access information the IC tag reader has read from the IC tag, access to the Web site freely configured IC tag system characterized by being made.

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