TW200535708A - IC tag with anti-replacement function - Google Patents

Abstract

Disclosed is an IC tag with anti-replacement function, permitting access to an identification data stored in the IC tag after being removed, and detection of false replacement by sight. The IC tag is constructed with an inlet sheet 5 comprising an IC chip 1, an antenna coil 2 connected to the IC chip 1, and a sacrificial switching device 3 connected to the IC chip 1, all fixedly laid on a substrate 4 such as a PET film. The sacrificial switching device 3 is so constructed that it can be broken when it is exposed to an exterior force of predetermined or stronger strength. The inlet sheet 5 is coated with a surface seal 6 on one side by applying an adhesive agent "a" onto the four side of the substrate 4 and the sacrificial switching device 3, and is lined with a piece of silicon-treated release paper 7 on the other side by applying the adhesive agent "a" on the rear face of the substrate 4. The release paper 7 can be easily peeled off from the IC tag when it is desired to be applied to a selected article.

Description

200535708 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a 1C tag, which is used to identify a selected object without touching the 1C tag, and particularly relates to an addition that can prevent improper replacement. The 1C tag of the 1C tag function is used to prevent the 1C tag from being replaced by a fake tag.

[Prior technology] The information of a 1C tag that is identified in a non-contact manner is written into ROM during the manufacturing process. Because the data cannot be rewritten, the 1C tag can be guaranteed to have a high degree of authenticity. In addition, this type of 1C label can be attached to a variety of articles, so it can be widely used in the security of valuable securities such as banknotes, and it can be used for personal authentication of entry and exit management, and the management of items during manufacturing, distribution, and sales. And other fields. However, the 1C label that can be simply attached to various items can also be simply reattached to another item. Furthermore, you can simply remove the surface label and reattach other labels. Therefore, for example, in the case of managing articles, the IC label of an expensive product has been replaced with a 1C label of a cheap product, or the IC label has been removed from an actual product and attached to a counterfeit product. Dangerous. To solve this problem, JP 2000-1 15 1 459 discloses that if the 1C tag is removed from an object, the connection part between the 1C and the antenna is destroyed, 3

200535708 The invention to prevent the replacement of IC tags. However, because this method separates the IC from the antenna, it is impossible to read the data from the 1C tag. Therefore, it is not only impossible to read the information recorded in the IC tags used in practice, but when you trace the resume data with the 1C tag, you will not be able to trace the resume data, and you will know when the wrongdoing occurred. In addition, it is difficult to confirm the replacement only by visual inspection. If the identification data is not read by a reader / writer, it is impossible to detect improper behavior. Patent Document Laid-Open No. 2000 — 1 5 1 45 9 [Summary of the Invention] Therefore, the present invention provides a 1C tag with a function of preventing replacement, in order to solve the unreadable IC tag caused by the separation of the 1C from the antenna in the conventional method. And it is difficult to visually confirm problems such as wrongdoing. By applying the present invention, it is possible to read the IC tag that has been torn off, and it is easy to visually confirm the improper behavior. In order to achieve the above-mentioned object, the present invention has an IC label for preventing the replacement function, which includes a switch, an input device, and a transmission device. When a predetermined external force is applied to the data input circuit of the IC, the switch is broken and the circuit is broken. The input device is used to input the state of the switch. The transmitting device adds the state of the input switch to the response signal and transmits the signal. [Embodiment] If there is no bidding, a real signature will be cut. Μ 4 200535708 The following describes the present invention in detail with reference to the drawings. 1 and 2 show a plan view and a cross-sectional view of a 1C tag having a function of preventing replacement in accordance with an embodiment of the present invention. In the figure, the 1C tag with an electromagnetic induction method mainly using a frequency domain below 150 kHz or 13.56 MHz is exemplified.

The 1C tag having the function of preventing replacement is in the form of a sticker. On a substrate 4 such as a PET film, the antenna coil 2 and the damage switch 3 are bonded to the 1C chip 1 to form an inner liner 5. When a predetermined amount of external force is applied to the broken switch 3, the broken switch 3 is broken and the circuit is cut off. Adhesive a is applied to the periphery of the substrate 4 on the inner side 5 and the broken switch 3, and then a surface label 6 is coated thereon. Adhesive a is applied to the lower side of the inner side 5, and a silicon peeling treatment is applied to the lower side. Release the paper to form an IC tag. This IC tag is peeled from the release paper 7 and attached to an article or the like. 3 and 4 are enlarged plan and sectional views of the broken switch. The damage switch 3 uses a thick film printing technology to form a film 31 on the substrate 4 and then cover it with a gasket 3 2 made of a fragile material to form a bag-shaped liquid storage layer 3 3 and a liquid storage layer 3 3 A conductive ink b is loaded. The electrodes 3 4 are located at two ends of the liquid storage layer 3 3, and are connected to the 1C chip 1 through the wires 35. The substrate 4 is cut in advance in a shape such as a mark X and has a broken line shape. Accordingly, when the 1C label is peeled off, the substrate 4 is pulled, causing the slit width of the slit line c to be enlarged, and the damage switch 3 integrated with the substrate 4 is surely damaged. This slit line c will widen the slit regardless of whether it is pulled from any direction.

The surface of the substrate 4 is damaged around the switch 3 or the entire surface of the substrate 4 is subjected to surface processing such as dots to make it easy to absorb the ink b. In addition to surface processing, the surface of the substrate 4 may be coated with a coating material that absorbs ink b, or a tape such as paper or cloth that absorbs ink b. According to this, although only a small amount of ink b leaks out at the time of damage, a large amount of diffusion is adhered to the surrounding substrate 4 and it is easy to visually confirm that the damage switch 3 is broken. As shown in Fig. 5, the damage switch 3 may be connected to both ends of the liquid-storage layer 33 by a conductive thin conductive wire d which is easy to cut off, and energize it. Alternatively, a metal foil such as aluminum may be used to form the film 31 or the spacer 32, and apply electricity thereto. In this case, the liquid storage layer 33 may be filled with an ink b containing a normal dye which can be visually recognized. Figure 6 is a block diagram of the 1C tag of the present invention. In the 1C tag, the antenna coil 2 is connected to the antenna connection portion of the 1C chip 1, and the break switch 3 is connected to the data input portion of the 1C chip 1. The IC chip 1 includes an rectifier circuit 1 connected to the antenna coil 2 and a demodulation circuit. 200535708 Circuit 1 2, a modulation circuit 13 and a sequence circuit 14 are analog circuits, and the CPU 15 and the memory 16 are analog circuits. Digital circuit. The IC tag has the above-mentioned structure. The reader / writer 8 modulates the read signal of the identification data, applies a voltage to the antenna coil 9 to generate induced magnetism, and the antenna coil 2 of the tag generates an induced voltage. The induced voltage is rectified by the rectifier circuit 11 to become an operating power source. The sequence circuit 1 4 generates a sequence for 1C synchronization by using its cycle number.

According to this, when power and timing are supplied to the IC circuit, the demodulation circuit 12 will synchronize it with the timing, and demodulate the read signal received from the reader / writer 8, and this read signal passes through the CPU 1 5 Analyze and read the identification data from the memory 16. The read identification data is modulated by the modulation circuit 13 and sent by the antenna coil 2. At this time, the CPU 15 performs input processing of the broken switch 3, and adds the input switch state to the identification data and transmits it to the reader / writer 8. That is, for the 10 between the CPU 15 and the broken switch 3, A port (not shown) executes an input command, reads the state of the broken switch 3 at this time, attaches it to the identification data, and transmits it to the reader / writer 8. The 1C tag of the present invention has the above-mentioned structure. When the 1C tag is replaced and attached to other articles, etc., when the inner liner 5 is torn off, the film-like substrate 4 is pulled, causing the slit of the slit c on the substrate to expand. As shown in FIG. 7, according to this, the pulling force along any of the sutures c, that is, the external force, breaks the damage switch 3. At this time, the ink b contained therein leaked out and spread widely, and adhered to the surface of the substrate 4 around the damaged switch 3. Therefore, it is possible to visually detect that the 1C tag has been removed before reading the identification data with the reader / writer 8. On the other hand, when the conductive ink b leaks out, the broken switch 3 is in an open state. Therefore, the state of the switch attached when the identification data is read can also be detected by the reader / writer 8 as being torn off.

As shown in FIG. 8, when the damage switch 3 is composed of the liquid storage layer 3 3 and the two ends are connected by a thin wire d, when the 1C label is removed, the damage switch 3 is broken, and the ink b contained therein leaks out and attaches to the damage. The surface of the substrate 4 around the switch 3. When the damage switch 3 is broken, the thin wire d is cut. Similarly, the damage switch is also disconnected. In addition, if the surface label 6 of the 1C label is replaced with another surface label, the bottom surface of the switch 3 is fixed to the substrate 4 due to damage, and the top surface of the switch 3 is adhered to the surface label 6. When the surface label 6 is removed The broken switch 3 is broken due to being pulled upward. Therefore, in the same manner as when the inner liner 5 is torn off, the damage switch 3 is opened, and the ink b is also adhered to the surface of the substrate 4 around the damage switch 3. As can be seen from the above embodiments, the application of the present invention has the following advantages: By applying an external force of more than a predetermined value to the IC, the switch that is broken and becomes open can detect and replace the condition, and the original function of the 1C label can be detected and replaced Therefore, the 1C label can also be read off. 8 200535708 When the switch is damaged, the ink in the switch leaks and adheres to the periphery of the switch. Therefore, the replacement of the IC label can be confirmed visually. [Schematic description] Figure 1 is a plan view of the IC tag of the present invention; Figure 2 is a sectional view of Figure 1; Figure 3 is a plan view of a broken switch;

4 is a sectional view of FIG. 3; FIG. 5 is a plan view of a damaged switch according to another embodiment of the present invention; FIG. 6 is a block diagram of a 1C label of the present invention; and FIG. 7 is a broken state of the broken switch Schematic diagram; FIG. 8 is a schematic diagram of a damaged state of a broken switch according to another embodiment of the present invention. [Description of main component symbols] 1: 1C chip 1 1 ·· Rectifier circuit 1 2: Demodulation circuit 1 3 ·· Modulation circuit 1 4: Sequential circuit 15: CPU 1 6: Memory 2: Antenna coil 3: Broken Switch 3 1: membrane 3 2: gasket 3 3: reservoir 3 4: electrode 200535708 3 5: lead 4: substrate 5: inner 6: surface label 7: release paper 8: reader / writer 9: Antenna coil a: adhesive b: ink c: slit line d: thin wire

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Claims (1)

200535708 10. Scope of patent application: 1. A 1C tag with a function of preventing replacement, which includes: a switch that breaks and cuts off the circuit when a predetermined amount of external force is applied to the data input circuit of I c; An input device to input the state of the switch; and a transmitting device to add the state of the switch input to the response signal and transmit the signal. 2. The 1C label with the function of preventing replacement as described in item 1 of the scope of patent application, wherein the opening relationship includes a fragile bag containing conductive ink. 3 · The IC tag with the function of preventing replacement as described in item 1 of the scope of patent application, wherein the switch includes a fragile bag; and a conductive thin wire, which contains conductive ink, and the conductive thin wire Insert into the bag. 4. The IC tag with the function of preventing replacement as described in item 1 of the scope of patent application, wherein the switch includes a fragile bag containing ink, and the bag is conductive. 5. The 1C label with the function of preventing replacement as described in item 1 of the scope of patent application, wherein the bottom surface of the switch is fixed to the substrate inside the 1C label, and the top surface of the switch is adhered to the surface label. 11 200535708 6. The IC tag with the function of preventing replacement as described in item 5 of the scope of patent application, wherein the substrate on the inner side contacted by the bottom surface of the switch is provided with a pre-cut easily-cut seam. 7. The IC tag with the function of preventing replacement as described in item 5 of the scope of patent application, wherein the surface of the substrate inside the periphery of the switch is surface-treated with an absorbable ink. 8. The 1C label with the function of preventing replacement as described in item 5 of the scope of patent application, wherein the surface of the substrate inside and around the switch is coated with an ink-absorbing coating. 9. The IC tag with a function of preventing replacement as described in item 5 of the scope of patent application, wherein an ink-absorbing tape is attached to the surface of the substrate inside the periphery of the switch. 12