RFID medium, usage method for RFID medium and detection system

Abstract

To make an RFID medium less susceptible to environmental conditions.SOLUTION: An RFID medium has an IC device for detecting a state of environments, an antenna connected to the IC device, and a battery for causing the IC device to operate, with the IC device provided at one end of an elongated substrate and the battery provided at the other end of the substrate.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to RFID media, methods of using RFID media, and detection systems. [Background technology]

[0002] Patent Document 1 discloses a system that can acquire the environmental conditions of a package from an RFID tag with a built-in temperature sensor via an RF tag reader.

[0003] Furthermore, among the RFID media such as the RFID tags shown in Patent Document 1, there is an RFID medium that is equipped with a battery and can detect data based on environmental conditions and transmit the acquired data from an antenna without receiving excitation power from an external source. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-214446 Summary of the Invention [Problem to be solved by the invention]

[0005] Normally, batteries and IC devices have a set allowable temperature range for demonstrating their designed performance. However, if the allowable temperature range of the battery and the allowable temperature range of the IC device are different and the environmental conditions in which the RFID medium is placed do not satisfy either of the allowable temperature ranges, the RFID medium may not be able to demonstrate its performance.

[0006] Therefore, an object of the present invention is to make RFID media less susceptible to environmental conditions. [Means for solving the problem]

[0007] According to one aspect of the present invention, there is provided an RFID medium comprising an IC device for detecting an environmental condition, an antenna connected to the IC device, and a battery for operating the IC device, wherein the IC device is provided at one end of an elongated substrate and the battery is provided at the other end of the substrate. [Effects of the Invention]

[0008] According to one aspect of the present invention, an IC device is provided on one end side of an elongated substrate, and a battery is provided on the other end side of the substrate.

[0009] Therefore, the end of the substrate where the IC device is provided can be placed in the environment where the condition is to be detected, and the end of the substrate where the battery is provided can be placed in a position away from the environment where the condition is to be detected. This allows the battery, which is easily affected by environmental conditions, to be kept away from the environment around the IC device.

[0010] Therefore, according to an embodiment of the present invention, the RFID medium can be made less susceptible to environmental conditions. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a plan view of an RFID label according to an embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the RFID label taken along line II-II in FIG. [Figure 3] FIG. 3 is a block diagram illustrating the configuration of an RFID label. [Figure 4] FIG. 4 is a schematic diagram illustrating an example of how an RFID label is used. [Figure 5] FIG. 5 is a schematic diagram illustrating a detection system including an RFID label and a first external device. [Figure 6] FIG. 6 is a schematic diagram illustrating a detection system including an RFID label and a second external device. DETAILED DESCRIPTION OF THE INVENTION

[0012] The embodiments described below are not limited to the drawings described by the brief description of the drawings.

[0013] A first aspect of the present invention is an RFID medium having an IC device that detects an environmental condition, an antenna connected to the IC device, and a battery for operating the IC device, wherein the IC device is provided at one end of an elongated substrate and the battery is provided at the other end of the substrate.

[0014] According to a first aspect of the present invention, an IC device is provided on one end side of a long substrate, and a battery is provided on the other end side of the substrate.

[0015] Therefore, the end of the substrate where the IC device is provided can be placed in the environment where the condition is to be detected, and the end of the substrate where the battery is provided can be placed in a position away from the environment where the condition is to be detected. This allows the battery, which is easily affected by environmental conditions, to be kept away from the environment around the IC device.

[0016] Therefore, according to the first aspect of the present invention, the RFID medium can be made less susceptible to environmental conditions.

[0017] A second aspect of the present invention is the RFID medium according to the first aspect, further comprising a bent portion formed between the IC device and the battery.

[0018] According to a second aspect of the present invention, the base material can be folded at the folding portion formed between the IC device and the battery.

[0019] For this reason, the bent portion can be aligned with, for example, the opening edge of the container, so that the end of the base material where the IC device is located is positioned inside the container, and the end of the base material where the battery is located is positioned outside the container, thereby making it possible to position the end of the base material where the IC device is located in the environment whose condition is to be detected.

[0020] A third aspect of the present invention is an RFID medium according to the first or second aspect, wherein the antenna has a first antenna corresponding to a first frequency band and a second antenna corresponding to a second frequency band different from the first frequency band, the first antenna is connected to the IC device, and the first antenna and the second antenna are provided at different end sides of the substrate.

[0021] Therefore, for example, when an RFID label is attached to both the inside and outside of a container, the first or second antenna that corresponds to the frequency band that is likely to be blocked by the container can be placed on the outside of the container, and the antenna that is less likely to be blocked can be placed on the inside of the container.

[0022] Furthermore, a fourth aspect of the present invention is an RFID medium according to the third aspect, which has an IC chip, the IC chip being arranged on the other end side of the substrate and connected to the second antenna.

[0023] According to a fourth aspect of the present invention, communication using the second antenna is also possible for the IC chip disposed on the other end side of the substrate.

[0024] Furthermore, a fifth aspect of the present invention is an RFID medium according to any one of the first to fourth aspects, which comprises a connecting wire arranged across the one end side and the other end side of the substrate, and the connecting wire is configured so as not to break even when bent.

[0025] According to a fifth aspect of the present invention, since the connecting wire arranged across one end side and the other end side of the substrate is configured not to break even when bent, for example, the RFID medium can be supported in the container by aligning the substrate with the opening edge of the container, placing the end side of the substrate where the IC device is arranged inside the container and the end side of the substrate where the battery is arranged outside the container, and then bending the substrate at the opening edge. This allows the end side of the substrate where the IC device is arranged to be positioned in the environment whose condition is to be detected.

[0026] A sixth aspect of the present invention is the RFID medium according to any one of the first to fifth aspects, which has an adhesive layer for adhering to an adherend.

[0027] According to a sixth aspect of the present invention, the adhesive layer allows the RFID medium to be attached to the adherend with the base IC device placed in the environment in which the condition is to be detected, and the end side of the base where the battery is provided placed at a position away from the environment in which the condition is to be detected.

[0028] Furthermore, a seventh aspect of the present invention is a method of using an RFID medium having an IC device that detects the state of the environment, an antenna connected to the IC device, and a battery for operating the IC device, wherein the IC device is provided on one end side of a long substrate and the battery is provided on the other end side of the substrate, and the RFID medium is attached to the container so that the IC device is located inside the container and the battery is located outside the container.

[0029] According to a seventh aspect of the present invention, the end of the substrate on which the IC device is provided can be disposed inside the container whose condition is to be detected, and the end of the substrate on which the battery is provided can be disposed outside the container, thereby allowing the battery, which is susceptible to environmental conditions, to be disposed away from the environment surrounding the IC device.

[0030] Therefore, according to a seventh aspect of the present invention, it is possible to provide a method for using an RFID medium that makes the RFID medium less susceptible to environmental conditions.

[0031] Furthermore, an eighth aspect of the present invention is a method of using an RFID medium according to the sixth aspect, in which the temperature inside the container is set to a temperature that is lower than the allowable operating temperature of the battery, as detected by the IC device.

[0032] According to an eighth aspect of the present invention, even if the IC device is placed at a temperature lower than the battery's allowable operating temperature, it is possible to prevent the battery from operating unstable.

[0033] Furthermore, a ninth aspect of a certain aspect of the present invention is a detection system comprising an IC device having a memory that detects an environmental state and stores data based on the detected state, an antenna connected to the IC device, and a battery for operating the IC device, wherein the IC device is provided on one end side of a long-shaped substrate, the battery is provided on the other end side of the substrate, the IC device is positioned inside a container, and the battery is positioned outside the container, and the data stored in the memory is obtained from an RFID medium attached to the container by an external device capable of communicating with the RFID medium via the antenna.

[0034] According to a ninth aspect of the present invention, an RFID medium having an IC device provided on one end side of a long substrate and a battery provided on the other end side of the substrate can be arranged so that the end side where the IC device is provided is in the environment where the state is to be detected, and the end side of the substrate where the battery is provided is located in a position away from the environment where the state is to be detected.

[0035] This allows the battery, which is susceptible to environmental conditions, to be kept away from the surrounding environment of the IC device, thereby making the RFID medium less susceptible to environmental conditions.

[0036] Therefore, the RFID medium can be used to obtain the state of the environment without being affected by the environmental conditions.

[0037] [RFID medium] Hereinafter, an RFID medium according to an embodiment of the present invention will be described.

[0038] The RFID medium in this embodiment is, for example, an RFID label equipped with an antenna pattern and an IC device compatible with RFID (Radio Frequency Identification) technology that transmits and receives information by contactless communication.

[0039] Fig. 1 is a plan view of an RFID label 1 according to an embodiment of the present invention, and Fig. 2 is a cross-sectional view of the RFID label 1 taken along line II-II in Fig. 1.

[0040] 1, an RFID label 1 according to this embodiment includes a substrate 11, an IC device 12, a first antenna 13, and a battery 14. The RFID label 1 also includes an IC chip 15 and a second antenna 16.

[0041] The IC device 12 , the first antenna 13 , the battery 14 , the IC chip 15 and the second antenna 16 are disposed on the substrate 11 .

[0042] In this embodiment, materials that can be used as the substrate 11 include cardboard, fine paper, medium-quality paper, and coated paper obtained by forming a coating layer on any of these paper substrates.

[0043] The thickness of the substrate 11 can be, for example, 10 μm or more and 300 μm or less.

[0044] In addition to the paper substrate, in this embodiment, a single-layer resin sheet made of a single resin such as polyvinyl chloride, polyethylene terephthalate, polypropylene, polyethylene, or polyethylene naphthalate, or a multi-layer resin sheet made by laminating multiple such single-layer sheets, can be used.

[0045] When the substrate 11 is a paper substrate, a paper substrate having a thickness of 50 μm or more and 260 μm or less within the above range can be used, and a paper substrate having a thickness of 80 μm can be used in particular.

[0046] When the substrate 11 is a resin sheet, a resin sheet having a thickness of 25 μm or more and 200 μm or less within the above range, and especially 10 μm or more and 200 μm or less, can be used.

[0047] The material and thickness of the substrate 11 can be appropriately selected within the above range depending on the application.

[0048] The substrate 11 is formed in an elongated shape. For example, the length L of the substrate 11 is 200 mm to 310 mm.

[0049] The first antenna 13 is connected to the IC device 12 and is compatible with wireless communication using a first frequency band. In the present embodiment, as the wireless communication using the first frequency band, for example, wireless communication using radio waves using the UHF band (frequency 860 to 960 MHz) can be applied.

[0050] As shown in FIG. 1, the first antenna 13 includes a loop portion 21, meanders 22 and 23 extending symmetrically from the loop portion 21, and capacitor hats 24 and 25 connected to the ends of the meanders 22 and 23.

[0051] The second antenna 16 is connected to the IC chip 15 and is compatible with wireless communication using a second frequency band different from the first frequency band. In the present embodiment, the wireless communication using the second frequency band can be, for example, near field communication (NFC) using electromagnetic induction using the HF band (3 MHz to 30 MHz, particularly a specific frequency band of 13.56 MHz).

[0052] The second antenna 16 forms a loop antenna and is also connected to the IC device 12 by a first connection line 17.

[0053] An anisotropic conductive adhesive that hardens when heated or exposed to ultraviolet light can be used to connect the IC device 12 to the first antenna 13 and to connect the IC chip 15 to the second antenna 16 .

[0054] In this embodiment, the first antenna 13 and the second antenna 16 can be formed of a conductive sheet containing a conductive material. The conductive sheet can be a metal foil, and in particular, an aluminum or copper sheet.

[0055] After adhering the metal sheet to the substrate 11 with an acrylic, urethane, silicone, rubber, or other adhesive or bonding agent, the antenna patterns of the first antenna 13 and the second antenna 16 can be formed by die cutting.

[0056] The thickness of the metal sheet on which the first antenna 13 and the second antenna 16 can be formed can be set in consideration of the thickness of the RFID label 1, the manufacturing cost, etc., and is preferably 3 μm or more and 50 μm or less. In this embodiment, from the viewpoint of reducing the manufacturing cost, it is preferable to use an aluminum foil having a thickness of 7 μm, for example.

[0057] The battery 14 is a power source that operates the IC device 12. The battery 14 is connected to the IC device 12 by a second connection line 18. In this embodiment, the battery 14 is a paper battery formed in a sheet shape.

[0058] In the RFID label 1, the IC device 12 and the first antenna 13 are arranged on one end 11a side of the RFID label 1. The battery 14, the IC chip 15, and the second antenna 16 are arranged on the other end 11b side of the base material 11.

[0059] 2, the RFID label 1 includes an adhesive layer A1 on the surface of the substrate 11 on which the IC device 12 and the first antenna 13 are formed. The RFID label 1 also includes a surface substrate 31 with the adhesive layer A1 interposed therebetween.

[0060] The RFID label 1 has an adhesive layer A2 on the surface opposite to the surface on which the surface substrate 31 is laminated on the substrate 11. In addition, the RFID label 1 has a separator 32 attached thereto that covers the adhesive layer A2.

[0061] Any material that can be used for the surface substrate 31 can be used as long as it is applicable to the substrate 11. The surface substrate 31 is, for example, so-called thermal paper, on whose surface a thermosensitive coloring layer that changes color when heated is formed, and can be printed on by a direct thermal printer.

[0062] In this embodiment, in the RFID label 1, the surface of the surface substrate 31 is referred to as the surface side of the RFID label 1, and the surface of the separator 32 or the exposed surface of the adhesive layer A2 is referred to as the back side of the RFID label 1.

[0063] The RFID label 1 has a folding portion 40 formed between the IC device 12 and the battery 14. In this embodiment, the folding portion 40 is a perforation formed by alternating and continuous through-holes that penetrate the base material 11 and the surface base material 31 that constitute the RFID label 1 and non-penetrating portions that do not penetrate the base material 11 or the surface base material 31.

[0064] By providing the perforations, the RFID label 1 can easily be folded at the folding portion 40. This allows the RFID label 1 to be folded using the folding portion 40 as a base point.

[0065] The first connecting wire 17 and the second connecting wire 18 are configured so as not to break even when the RFID label 1 is folded at the folding portion 40 .

[0066] Fig. 3 is a block diagram illustrating the RFID label 1. The components shown in Fig. 1 and Fig. 2 are given the same numbers in Fig. 3.

[0067] The IC device 12 includes a temperature sensor 121, a memory 122, and a control unit 123, all of which are configured on a single chip.

[0068] The temperature sensor 121 is a detector that detects the environmental state, and is a sensor that detects the temperature as the environmental state. As an example, the temperature sensor 121 can detect a temperature range of -20°C to 50°C.

[0069] The memory 122 has a plurality of logical areas, and temperature data based on the temperature value acquired by the temperature sensor 121 is stored in one of these logical areas.

[0070] The control unit 123 converts the temperature value acquired by the temperature sensor 121 into temperature data, and controls communication with the terminals 100 and 200 (FIGS. 5 and 6).

[0071] The IC device 12 is a semiconductor package designed to be capable of communicating with a terminal 100 that supports wireless communication using radio waves in the UHF band, and a terminal 200 that supports short-range wireless communication using electromagnetic induction in the HF band.

[0072] In this embodiment, the memory 122 of the IC device 12 has a capacity that can store temperature data for about one year when temperature data is acquired at 36-minute intervals, for example.

[0073] <Effects> The RFID label 1 according to this embodiment includes an IC device 12 that detects temperature as an environmental condition, a first antenna 13 connected to the IC device 12, and a battery 14 for operating the IC device 12. In the RFID label 1, the IC device 12 is provided on one end 11a side of a long substrate 11, and the battery 14 is provided on the other end 11b side of the substrate 11.

[0074] According to the RFID label 1, the IC device 12 having the temperature sensor 121 and the battery 14 are provided at different ends of the long substrate 11. Therefore, the end 11a of the substrate 11 where the IC device 12 is provided can be placed in the environment where the temperature is to be detected, and the end 11b of the substrate 11 where the battery 14 is provided can be placed at a position away from the environment where the condition is to be detected.

[0075] This allows the battery 14, which is susceptible to environmental conditions, to be located away from the environment surrounding the IC device 12, making it less susceptible to environmental conditions.

[0076] Furthermore, the substrate 11 can be folded at a folding portion 40 formed between the IC device 12 and the battery 14. Therefore, the folding portion 40 can be aligned with, for example, the opening edge of the container, and supported so that the end 11a of the substrate 11 where the IC device 12 is located is positioned inside the container, and the end 11b of the substrate 11 where the battery 14 is located is positioned outside the container.

[0077] This makes it easier to position the end 11a of the substrate 11 where the IC device 12 is placed in the environment where the state is to be detected.

[0078] The RFID label 1 also has a first antenna 13 that corresponds to a first frequency band and a second antenna 16 that corresponds to a second frequency band different from the first frequency band. The first antenna 13 and the second antenna 16 are formed at different ends of the substrate 11.

[0079] Therefore, for example, when RFID label 1 is used by being attached to both the inside and outside of a container, of the first antenna 13 and the second antenna 16, the antenna corresponding to the frequency band that is likely to be blocked by the container can be placed on the outside of the container, and the antenna that is less likely to be blocked can be placed on the outside of the container.

[0080] Furthermore, IC chip 15 is disposed on the other end 11b side of substrate 11 and is connected to second antenna 16. This allows communication using second antenna 16 even with IC chip 15 provided on end 11b of substrate 11.

[0081] Furthermore, the first connection line 17 and the second connection line 18, which are arranged across the substrate 11 from the end 11a side to the end 11b side, are configured so as not to break even when bent.

[0082] Therefore, for example, the substrate 11 can be aligned with the opening edge of the container, with the end 11a of the substrate 11 where the IC device 12 is located positioned inside the container, and the end 11b of the substrate 11 where the battery 14 is located positioned outside the container, and the substrate 11 can be folded and supported at the opening edge, allowing the RFID label 1 to be stably supported on the container.

[0083] This allows the end 11a side of the substrate 11 where the IC device 12 is placed to be positioned in the environment where the state is to be detected.

[0084] The RFID label 1 also has an adhesive layer A2 for adhering to an adherend, so that the RFID label 1 can be attached to an adherend with the end 11a, where the IC device 12 is provided, located in the environment where the condition is to be detected, and the end 11b, where the battery 14 is provided, located away from the environment where the condition is to be detected.

[0085] [How to use] Next, a method of using the RFID label 1 according to this embodiment will be described.

[0086] FIG. 4 is a schematic diagram illustrating an example of how the RFID label 1 is used.

[0087] The protective box B shown in Fig. 4 has a structure that allows a plurality of thermostatic boxes b to be stored inside the protective box B. As an example, the thermostatic box b contains a block of dry ice. In other words, the thermostatic box b is an insulated box intended to keep the contents cold.

[0088] The incubator box b contains test tubes for blood collection, blood donations, urine tests, etc. The incubator box b and protective box B are used to transport specimens obtained at hospitals and testing institutions to research laboratories.

[0089] The temperature-controlled box b housed in the protective box B is set to a holding temperature such as room temperature, low temperature, or extremely low temperature. The temperature-controlled box b is structured so that the temperature inside the temperature-controlled box b is easily transferred to the outer surface of the temperature-controlled box b.

[0090] In the first use example, the temperature inside the thermostatic box b is set to an extremely low temperature (-20°C), i.e., the temperature detected by the IC device 12 is set to a temperature lower than the allowable operating temperature of the battery 14.

[0091] Therefore, if the battery 14 comes into contact with the outer surface of the thermostatic box b, the operation of the battery 14 may become unstable.

[0092] In contrast, the RFID label 1 has an IC device 12 equipped with a temperature sensor 121 arranged on one end 11a side of the base material, and a battery 14 arranged on the other end 11b side, and can be folded at a folding portion 40 provided between the IC device 12 and the battery 14.

[0093] As a result, the RFID label 1 can be used by attaching it to the protective box B, with the IC device 12 placed inside the protective box B and the battery 14 and second antenna 16 placed outside the protective box B, as shown in Figure 4.

[0094] The IC device 12 of the RFID label 1 is located inside the protective box B and can detect the temperature of the outer surface of the thermostatic box b.

[0095] The IC device 12 can acquire temperature data at any time intervals while the protective box B is being transported, and store the history of the temperature data in the memory 122 .

[0096] According to the method of using the RFID label 1, even if the IC device 12 is placed in a temperature lower than the allowable operating temperature of the battery 14, the battery 14 can be kept away from the low-temperature environment, thereby preventing the operation of the battery 14 from becoming unstable.

[0097] [Detection System] Next, a detection system 300, 301 including the RFID label 1 according to this embodiment and the terminal 100 (or the terminal 200) will be described.

[0098] Fig. 5 is a schematic diagram illustrating a detection system 300 including an RFID label 1 and a terminal 100 as a first external device. Fig. 6 is a schematic diagram illustrating a detection system 301 including an RFID label 1 and a terminal 200 as a second external device.

[0099] In this embodiment, the terminal 100 as an external device is a terminal that supports wireless communication using radio waves in the UHF band, and the terminal 200 is a terminal that supports short-range wireless communication using electromagnetic induction in the HF band.

[0100] The terminals 100 and 200 may be dedicated information processing terminals capable of wireless communication with the RFID label 1, or may be smartphones. Alternatively, the terminals 100 and 200 may be terminals compatible with both communication frequencies.

[0101] As shown in Figure 5, using a terminal 100 that supports wireless communication using radio waves, the IC device 12 is placed inside a protective box B, and the battery 14 and second antenna 16 are placed outside the protective box B, and the temperature data stored in the memory 122 of the IC device 12 can be read out contactlessly from the RFID label 1 attached to the protective box B.

[0102] Furthermore, as shown in FIG. 6, by placing a terminal 200 compatible with short-range wireless communication by electromagnetic induction over an RFID label 1 attached to the protective box B, with the IC device 12 placed inside the protective box B and the battery 14 and second antenna 16 placed outside the protective box B, the temperature data stored in the memory 122 of the IC device 12 can be read out.

[0103] In either the method shown in Figure 5 or Figure 6, for example, when protective box B is opened after being transported to its destination, the temperature data history can be read out all at once from memory 122 by performing the above operation.

[0104] At this time, for example, if the temperature data history contains temperature data that deviates from a preset temperature change amount, it can be determined that there was a problem with temperature management during transportation.

[0105] [Other embodiments] Although the present embodiment has been described above, the above embodiment merely shows one application example of the present invention, and is not intended to limit the technical scope of the present invention to the specific configuration of the above embodiment.

[0106] The configuration of the RFID label 1 shown in Figures 1 and 2 in this embodiment is not limited to the configuration shown in Figures 1 and 2. The number of meanders and meander amplitude of the meander of the first antenna, the shape of the capacitor hat, etc. can be changed as appropriate.

[0107] The first antenna 13 and the IC device 12 may be provided as a so-called RFID inlay, for example, arranged on a PET (polyethylene terephthalate) substrate.

[0108] The battery 14 may be arranged on the surface opposite to the surface on which the first antenna 13 and the IC device 12 are formed, and may be connected to the IC device 12 by a connection wire that passes through the base material 11.

[0109] Alternatively, the battery 14 and the second connecting wire 18 may be disposed on a separate substrate to form a battery inlay.

[0110] In the RFID label 1 according to this embodiment, the IC chip 15 may be a device having a sensor function, similar to the IC device 12. The temperature sensor 121 may be configured as a separate entity from the control unit 123 and the memory 122.

[0111] In this embodiment, in addition to the HF band and UHF band, applicable contactless communication can also use the LF band (frequency 135 KHz or less) as a band that enables NFC using electromagnetic induction, or the microwave band (frequency 2.45 GHz) as a band that enables wireless communication using radio waves.

[0112] In this embodiment, the pressure-sensitive adhesive layer A2 may be disposed only on a portion of the substrate 11 on the end portion 11a side where the IC device 12 is disposed. This allows the portion where the IC device 12 including the temperature sensor 121 is disposed to be attached to the adherend, which is the detection target, and improves the accuracy of the detection value.

[0113] In this embodiment, the folding portion 40 may be a mark to indicate to the user the folding position instead of perforation.

[0114] The overall length of the RFID label 1 can be changed as appropriate depending on the size of the thermostatic box b to which it is attached.

[0115] The RFID label 1 does not necessarily have to include the IC chip 15. [Explanation of symbols]

[0116] 1. RFID label (RFID medium) 11 Base material 11a,11b end 12 IC devices 13 First Antenna 14 Battery 15 IC chip 16 Second Antenna 17 First connecting line 18 Second connecting line 21 Loop section 22,23 Meander 24,25 Capacitor Hat 31 Surface base material 32 Separator 40 Bending section 121 Temperature Sensor 122 memory 123 Control Unit 100,200 devices 300,301 A1,A2 Adhesive layer

Claims

1. an IC device for detecting an environmental condition; an antenna connected to the IC device; a battery for operating the IC device; and the IC device is provided on one end side of a long substrate, The battery is provided on the other end side of the base material. RFID medium.

2. The RFID medium according to claim 1, a bent portion formed between the IC device and the battery; RFID medium.

3. 3. The RFID medium according to claim 1, The antenna is a first antenna corresponding to a first frequency band; a second antenna corresponding to a second frequency band different from the first frequency band; and the first antenna is connected to the IC device; The first antenna and the second antenna are provided on different end sides of the substrate. RFID medium.

4. The RFID medium according to claim 3, It has an IC chip, the IC chip is disposed on the other end side of the substrate and connected to the second antenna; RFID medium.

5. 3. The RFID medium according to claim 1, a connecting line disposed across the one end side and the other end side of the base material, The connecting wire is configured so as not to break even when bent. RFID medium.

6. The RFID medium according to claim 1, It has a pressure-sensitive adhesive layer for adhering to an adherend, RFID medium.

7. A method for using an RFID medium comprising an IC device that detects an environmental condition, an antenna connected to the IC device, and a battery for operating the IC device, the IC device being provided at one end of a long substrate and the battery being provided at the other end of the substrate, the method comprising: attaching the RFID medium to the container such that the IC device is located inside the container and the battery is located outside the container; How to use RFID media.

8. A method for using the RFID medium according to claim 7, comprising: the temperature inside the container is set to a temperature that is lower than the allowable operating temperature of the battery, the temperature detected by the IC device being lower than the allowable operating temperature of the battery; How to use RFID media.

9. an RFID medium attached to a container such that an IC device detects an environmental state and has a memory that stores data based on the detected state, an antenna connected to the IC device, and a battery for operating the IC device, the IC device being provided on one end side of a long-length substrate and the battery being provided on the other end side of the substrate, the IC device being disposed inside the container, and the battery being disposed outside the container; acquiring the data stored in the memory by an external device capable of communicating with the RFID medium via the antenna; Detection system.

Images