WO2017169217A1 - Temperature sensor-attached wireless communication device - Google Patents

Temperature sensor-attached wireless communication device Download PDF

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Publication number
WO2017169217A1
WO2017169217A1 PCT/JP2017/005447 JP2017005447W WO2017169217A1 WO 2017169217 A1 WO2017169217 A1 WO 2017169217A1 JP 2017005447 W JP2017005447 W JP 2017005447W WO 2017169217 A1 WO2017169217 A1 WO 2017169217A1
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WO
WIPO (PCT)
Prior art keywords
temperature sensor
wireless communication
flexible base
coil antenna
base sheet
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PCT/JP2017/005447
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French (fr)
Japanese (ja)
Inventor
佐々木　純
聡 石野
政明 金尾
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株式会社村田製作所
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Publication of WO2017169217A1 publication Critical patent/WO2017169217A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue

Definitions

  • the present invention relates to a wireless communication device with a temperature sensor that can be attached to an object such as a human body or an article.
  • This type of wireless communication device includes a battery for supplying a driving voltage to a temperature sensor, a microcomputer, a wireless communication circuit, and the like. For this reason, there exists a subject that a magnitude
  • communication means such as Bluetooth (registered trademark) or wireless LAN is used.
  • Bluetooth registered trademark
  • wireless LAN since these communication means have a relatively high carrier frequency, there is a problem that the communication characteristics are easily obstructed by the object, and it is difficult to stably monitor the temperature information of the object.
  • an object of the present invention is to provide a wireless communication device that solves the above-described problems and eliminates the need for a battery and can stably monitor temperature information of an object. .
  • a wireless communication device with a temperature sensor comprises: A coil antenna; A wireless communication circuit connected to the coil antenna and performing wireless communication with an external device via the coil antenna; A temperature sensor for detecting the temperature of the object; A control circuit which is connected to the wireless communication circuit and the temperature sensor and controls driving of the temperature sensor; A flexible base sheet on which the coil antenna, the wireless communication circuit, the control circuit, and the temperature sensor are mounted; With The wireless communication circuit, the control circuit, and the temperature sensor are driven by the electric power generated when the coil antenna is magnetically coupled to the external device, and temperature information detected by the temperature sensor is transmitted via the coil antenna. Transmitted to the external device, It is configured as follows.
  • the wireless communication device with a temperature sensor According to the wireless communication device with a temperature sensor according to the present invention, it is possible to stably monitor temperature information of an object while eliminating the necessity of providing a battery.
  • FIG. 4 is a cross-sectional view taken along line A1-A1 of FIG. It is a top view which shows the modification of the radio
  • a wireless communication device with a temperature sensor includes: A coil antenna; A wireless communication circuit connected to the coil antenna and performing wireless communication with an external device via the coil antenna; A temperature sensor for detecting the temperature of the object; A control circuit which is connected to the wireless communication circuit and the temperature sensor and controls driving of the temperature sensor; A flexible base sheet on which the coil antenna, the wireless communication circuit, the control circuit, and the temperature sensor are mounted; With The wireless communication circuit, the control circuit, and the temperature sensor are driven by the electric power generated when the coil antenna is magnetically coupled to the external device, and temperature information detected by the temperature sensor is transmitted via the coil antenna. Transmitted to the external device, It is configured as follows.
  • the radio communication circuit, the control circuit, and the temperature sensor are driven by using the electric power generated by the coil antenna being magnetically coupled to the external device, and therefore it is necessary to provide a battery for driving them. Sex can be lost. As a result, it is possible to realize a small size, a thin shape, a light weight, and a low cost, and it is possible to suppress an impediment to attachment to a human body or an article.
  • temperature information detected by the temperature sensor is transmitted to the external device via the coil antenna. That is, the temperature information is transmitted to an external device using magnetic field communication (near-field communication). Thereby, the temperature information of a target object can be monitored stably.
  • an adhesive layer is provided on one main surface of the flexible base sheet, and the flexible base sheet is attached to the object via the adhesive layer. According to this configuration, since the adhesive layer is disposed between the coil antenna and the object, it is possible to suppress the influence of the object on the communication characteristics of the coil antenna by the thickness of the adhesive layer. it can.
  • the temperature sensor is preferably provided on the one main surface of the flexible base sheet. According to this configuration, since the temperature sensor is arranged on the object side relative to the flexible base sheet, the sensitivity of the temperature measurement of the object can be improved.
  • the temperature sensor and the wireless communication circuit are disposed apart from each other, and the control circuit is disposed between the temperature sensor and the wireless communication circuit. According to this configuration, since the wireless communication circuit having a relatively high heat generation property can be separated from the temperature sensor, it is possible to suppress the heat generated from the wireless communication circuit from affecting the temperature information of the temperature sensor.
  • the flexible base sheet is provided with a plurality of holes in a region farther from the wireless communication circuit as viewed from the control circuit and a region away from the temperature sensor from the control circuit. It is preferred that According to this structure, the heat dissipation of a flexible base material sheet, air permeability, etc. can be improved with a some hole part. In addition, since the stretchability can be improved by the plurality of holes, it is possible to easily attach the flexible base sheet to the curved surface of the object.
  • the hole is not provided in a region closer to the wireless communication circuit as viewed from the control circuit and a region closer to the temperature sensor from the control circuit. That is, it is preferable not to provide a hole in a region where the wireless communication circuit, the control circuit, and the temperature sensor are provided. According to this configuration, since the region where the hole is not provided is stronger than the region where the hole is provided, the wireless communication circuit, when the flexible base sheet is attached to the curved surface of the object, The bending stress applied to the control circuit and the temperature sensor can be reduced. Moreover, it can suppress that the wiring which connects each surface mounting component by a deformation
  • the flexible base sheet has a longitudinal direction and a lateral direction in a plan view, and the hole portion is provided in a peripheral region at one end portion in the longitudinal direction and a peripheral region at the other end portion in the longitudinal direction, respectively. Is preferably provided. According to this structure, the elasticity of the both ends of the longitudinal direction of a flexible base material sheet can be improved, and handleability can be improved.
  • the wireless communication circuit and the temperature sensor are arranged in the vicinity of a boundary between a hole forming region where the hole is formed and a hole non-forming region where the hole is not formed. According to this configuration, since the wireless communication circuit and the temperature sensor can be further separated, it is possible to further suppress the heat generated from the wireless communication circuit from affecting the temperature information of the temperature sensor.
  • the coil antenna has a spiral coil pattern disposed so as to surround the wireless communication circuit, the control circuit, and the temperature sensor in plan view. According to this configuration, since the coil antenna is interposed between the outer peripheral portion of the flexible base sheet and each surface mount component, the outer periphery of the flexible base sheet is directed to each surface mount component. The impact applied can be reduced by the coil antenna.
  • the coil antenna is disposed along the outer peripheral portion of the flexible base sheet. According to this structure, the length of a coil antenna can be lengthened using the area of a flexible base material sheet to the maximum. As a result, it is possible to easily secure sufficient power for driving the wireless communication circuit, the control circuit, and the temperature sensor.
  • the temperature sensor is preferably provided so as to protrude from the surface of the adhesive layer to the side away from the flexible base sheet. According to this structure, the adhesiveness of a temperature sensor and a target object can be improved, and the detection accuracy of the temperature of a target object can be improved.
  • a wireless communication device with a temperature sensor (hereinafter referred to as a wireless communication device) according to an embodiment of the present invention will be described.
  • the wireless communication device according to this embodiment is a seal-type wireless communication device that is attached to an object such as a human body or an article and can detect the temperature of the object.
  • FIG. 1 is a diagram illustrating an example in which a wireless communication device 1 according to the present embodiment is attached to a human body HB.
  • the wireless communication device 1 according to the present embodiment does not have a battery and is configured to be driven by receiving power from an external device 2 such as a smartphone.
  • This device may be directly attached to the human body, or may be attached from above the clothing.
  • FIG. 2 is a block diagram of the wireless communication device 1 shown in FIG.
  • FIG. 3 is a plan view of the wireless communication device 1 shown in FIG. 4 is a cross-sectional view taken along line A1-A1 of FIG.
  • the wireless communication device 1 includes a coil antenna 11, a wireless communication circuit 12, a control circuit 13, and a temperature sensor 14. As shown in FIGS. 3 and 4, the coil antenna 11, the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 are mounted on one main surface 15 a of the flexible base sheet 15.
  • the coil antenna 11 generates electric power by magnetic coupling with the external device 2 shown in FIG. 1 (more specifically, a coil antenna included in the external device 2), and performs wireless communication with the external device 2. .
  • the coil antenna 11 is connected to the capacitor 16 in parallel as shown in FIG.
  • the coil antenna 11 and the capacitor 16 constitute an antenna resonance circuit.
  • this antenna resonance circuit and a coil antenna (not shown) of the external device 2 are magnetically coupled, it is possible to receive power with little loss.
  • the capacitance of the capacitor 16 is determined such that the resonance frequency of the antenna resonance circuit is a predetermined frequency (for example, a frequency in the HF (13.56 MHz) band).
  • the coil antenna 11 is a planar coil in which a conductor wire is wound in a coil shape for a plurality of turns. As shown in FIG. 3, the coil antenna 11 has a spiral coil pattern arranged so as to surround the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 in a plan view. The coil antenna 11 is disposed along the outer periphery of the flexible base sheet 15.
  • the coil antenna 11 has flexibility so that it can be bent together with the flexible base sheet 15.
  • the coil antenna 11 is made of, for example, copper foil.
  • the wireless communication circuit 12 is connected to the coil antenna 11 and performs wireless communication with the external device 2 via the coil antenna 11.
  • the input side wiring 12 a of the wireless communication circuit 12 is connected to one end of the coil antenna 11.
  • the output-side wiring 12 b of the wireless communication circuit 12 is connected to the other end of the coil antenna 11 via the bridge conductor 17.
  • the wireless communication circuit 12 is, for example, an RFIC chip with an I 2 C (eye square sea) interface.
  • the wireless communication circuit 12 includes a signal processing circuit, a memory circuit, and the like, and is driven by power generated when the coil antenna 11 is magnetically coupled to the external device 2 and supplies the power to the control circuit 13.
  • the wireless communication circuit 12 is a so-called passive tag that does not have a battery.
  • the control circuit 13 is connected to the wireless communication circuit 12 by wires 13a and 13b.
  • the control circuit 13 is driven by the power supplied from the wireless communication circuit 12 and controls the driving of the temperature sensor 14 in response to a request from the external device 2.
  • the control circuit 13 is, for example, a microcomputer chip represented by a CPU / MPU.
  • the control circuit 13 includes a memory that stores a predetermined program for controlling the driving of the temperature sensor 14.
  • the temperature sensor 14 is connected to the control circuit 13 by wires 14a and 14b.
  • the temperature sensor 14 is driven by the electric power supplied from the control circuit 13 and detects the temperature of an object such as a human body HB or an article, or the air temperature.
  • Temperature information (for example, voltage information) detected by the temperature sensor 14 is transmitted to the external device 2 via the control circuit 13, the wireless communication circuit 12, and the coil antenna 11.
  • the control circuit 13 may convert the temperature information detected by the temperature sensor 14 into a temperature.
  • the temperature sensor 14 is, for example, a surface mount type thermistor.
  • an NTC thermistor, a PTC thermistor, a metal resistor, or a thermocouple may be used as the temperature sensor 14.
  • the NTC thermistor has the property that the resistance value decreases as the temperature rises, and is characterized by a wide detectable temperature range and low cost.
  • the metal resistor utilizes the fact that the electric resistance changes almost in proportion to the temperature.
  • a thermocouple is formed by laminating two kinds of metals and using an electromotive force generated by a temperature difference at the interface.
  • the temperature sensor 14 is not limited to including one thermistor, and may include a plurality of thermistors. Moreover, the temperature sensor 14 may be configured by combining a plurality of temperature sensors having different characteristics.
  • the temperature sensor 14 is arranged away from the wireless communication circuit 12 as shown in FIG.
  • a control circuit 13 is disposed between the temperature sensor 14 and the wireless communication circuit 12.
  • the control circuit 13 has a larger outer diameter than the wireless communication circuit 12 and the temperature sensor 14 in plan view. Therefore, the temperature sensor 14 and the wireless communication circuit 12 are arranged at a relatively large distance. Further, the temperature sensor 14 and the wireless communication circuit 12 are arranged offset from the central portion of the wireless communication device 1 in opposite directions.
  • the flexible base sheet 15 is, for example, a liquid crystal polymer (LCP) sheet.
  • the flexible base sheet 15 has a moisture permeability lower than that of the adhesive layer 18 (for example, 0.6 g / m 2 ⁇ 24 h (according to JIS Z0208)).
  • the flexible base material sheet 15 functions to suppress moisture from entering the adhesive layer 18 side from the outside and to prevent the surface-mounted component from being short-circuited by moisture.
  • the flexible base sheet 15 functions as a protective film for the wireless communication circuit 12, the control circuit 13, the temperature sensor 14, and the like when the wireless communication device 1 is attached to an object.
  • the flexible base material sheet 15 is formed in the rectangular shape which has a longitudinal direction and a transversal direction. Note that the flexible base sheet 15 may have a shape simulating a predetermined design. Moreover, in order to improve the temperature detection accuracy of the temperature sensor 14, it is preferable that the flexible base sheet 15 has a small thermal conductivity.
  • An adhesive layer 18 is provided on one main surface 15 a of the flexible base sheet 15.
  • the flexible base sheet 15 is attached to an object such as a human body HB via the adhesive layer 18.
  • the illustration of the adhesive layer 18 is omitted.
  • the adhesive layer 18 is, for example, a polyether-based double-sided tape.
  • the adhesive layer 18 has a moisture permeability higher than that of the flexible base sheet 15 (for example, 5,000 g / m 2 ⁇ 24 h (according to JIS Z0208)). Accordingly, it is possible to suppress a decrease in detection accuracy of the temperature sensor 14 due to the release of moisture released from the object from the outer peripheral side surface of the adhesive layer 18 and the retention of the moisture in the adhesive layer 18.
  • the adhesive layer 18 is attached to the entire surface of the flexible base sheet 15 excluding the formation region of the surface-mounted components such as the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14. Thereby, the adhesive layer 18 functions as a protective layer for the wiring pattern formed on the flexible substrate sheet 15.
  • a cover tape (not shown) may be provided on the outer adhesive surface of the adhesive layer 18.
  • the adhesive layer 18 of the wireless communication device 1 may be attached to the object after the cover tape is peeled off. That is, the wireless communication device 1 may be a seal type (adhesive plaster type).
  • the flexible base sheet 15 has a region E1 that is farther than the wireless communication circuit 12 when viewed from the control circuit 13 and a region that is farther than the temperature sensor 14 when viewed from the control circuit 13.
  • a plurality of holes 19 are provided in E2. That is, in the present embodiment, the region E1 that is the peripheral region of one end portion in the longitudinal direction L of the flexible base sheet 15 and the peripheral region of the other end portion in the longitudinal direction L of the flexible base sheet 15 are used.
  • a hole 19 is provided in each region E2.
  • the hole 19 is provided so as to penetrate the flexible base sheet 15 and the adhesive layer 18.
  • the holes 19 can improve heat dissipation, air permeability, and the like of the flexible base sheet 15. Further, the flexibility, strength, and the like of the wireless communication device 1 can be controlled according to the number, size, and position of the holes 19.
  • the region E3 is a region where wirings for connecting the surface mount components are densely arranged. For this reason, in this embodiment, the hole 19 is not provided in the region E3.
  • This region E3 is also referred to as a hole non-formation region.
  • the wireless communication circuit 12 is disposed in the vicinity of the boundary between the region E1 and the region E3.
  • the temperature sensor 14 is disposed in the vicinity of the boundary between the region E2 and the region E3.
  • the radio communication circuit 12, the control circuit 13, and the temperature sensor 14 are driven using the electric power generated by the coil antenna 11 being magnetically coupled to the external device 2. Yes. According to this configuration, it is possible to eliminate the necessity of providing a battery for driving the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14. As a result, the wireless communication device 1 can be reduced in size, thickness, weight, and cost, and it is possible to suppress the impediment to attachment to a human body or an article.
  • the temperature information detected by the temperature sensor 14 is configured to be transmitted to the external device 2 via the coil antenna 11. That is, the temperature information is transmitted to the external device 2 using magnetic field communication (near-field communication). Thereby, the temperature information of a target object can be monitored stably.
  • the adhesive layer 18 is provided on one main surface 15 a of the flexible base sheet 15, and the flexible base sheet 15 is attached to the object via the adhesive layer 18. It is configured as follows. According to this configuration, since the adhesive layer 18 is disposed between the coil antenna 11 and the object, the communication characteristics of the coil antenna 11 are affected by the object by the thickness of the adhesive layer 18. Can be suppressed.
  • the temperature sensor 14 is provided on the one main surface 15 a of the flexible base sheet 15. According to this configuration, since the temperature sensor 14 is disposed closer to the object side than the flexible base sheet 15, the temperature measurement sensitivity of the object can be improved. According to the present embodiment, since all the surface mount components including the wireless communication circuit 12 and the control circuit 13 are provided on the one main surface 15a of the flexible base sheet 15, each surface mount component Is easy to implement.
  • the temperature sensor 14 and the wireless communication circuit 12 are disposed apart from each other, and the control circuit 13 is disposed between the temperature sensor 14 and the wireless communication circuit 12. According to this configuration, since the wireless communication circuit 12 having a relatively high heat generation property can be separated from the temperature sensor 14, it is possible to suppress the heat generated from the wireless communication circuit 12 from affecting the temperature information of the temperature sensor 14. Can do.
  • the flexible base sheet 15 is separated from the area E1 farther than the wireless communication circuit 12 when viewed from the control circuit 13 and from the temperature sensor 14 when viewed from the control circuit 13.
  • a plurality of holes 19 are provided in the region E2. According to this structure, the heat dissipation of the flexible base material sheet 15, air permeability, etc. can be improved with the some hole part 19. FIG.
  • the stretchability can be improved by the plurality of holes 19, it is possible to easily attach the flexible base sheet 15 to the curved surface of the object.
  • the hole 19 is not provided in the region E3 in which the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 are provided.
  • the region E3 has higher strength than the regions E1 and E2 in which the hole portions 19 are provided. Therefore, when the flexible base sheet 15 is attached to the curved surface of the object, the wireless communication circuit 12 The bending stress applied to the control circuit 13 and the temperature sensor 14 can be reduced. Moreover, it can suppress that the wiring which connects each surface mount component by the deformation
  • region E1 which is the peripheral region of the one end part of the longitudinal direction L of the flexible base material sheet 15, and the peripheral region of the other end part of the flexible base material sheet 15 in the longitudinal direction L
  • the holes 19 are respectively provided in the regions E ⁇ b> 2. According to this structure, the stretchability of the both ends of the longitudinal direction of the flexible base material sheet 15 can be improved, and handleability can be improved.
  • the wireless communication device 1 by not providing the hole portion 19 in the central region E3 of the flexible base material 15, the reduction in strength is suppressed and each surface mount component is firmly attached. I try to keep it.
  • the holes 19 in the regions E1 and E2 on both end sides of the flexible base material 15 the stretchability is improved and the attachment to the human body or article is prevented from being hindered. Yes.
  • the wireless communication circuit 12 and the temperature sensor 14 are arranged in the vicinity of the boundary between the regions E1 and E2 that are the hole forming regions and the region E3 that is the hole non-forming region. . According to this configuration, since the wireless communication circuit 12 and the temperature sensor 14 can be further separated, it is possible to further suppress the heat generated from the wireless communication circuit 12 from affecting the temperature information of the temperature sensor 14. it can.
  • the coil antenna 11 has a spiral coil pattern arranged so as to surround the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 in plan view. According to this configuration, since the coil antenna 11 is interposed between the outer peripheral portion of the flexible base sheet 15 and each of the surface mount components 12 to 14, the outer periphery of the flexible base sheet 15 The impact applied to each of the surface mount components 12 to 14 can be reduced by the coil antenna 11.
  • the coil antenna 11 is arranged along the outer peripheral portion of the flexible base sheet 15. According to this configuration, the length of the coil antenna 11 can be increased by maximizing the area of the flexible base sheet 15. As a result, it is possible to easily secure sufficient power for driving the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14.
  • the hole 19 is provided so as to penetrate the flexible base sheet 15 and the adhesive layer 18, but the present invention is not limited to this.
  • the hole 19 may be provided so as to penetrate only the flexible base sheet 15.
  • the hole 19 may be provided as a recess that does not penetrate the flexible base sheet 15.
  • the hole 19 may be provided as appropriate so as to ensure heat dissipation, air permeability, flexibility, strength, and the like required according to the object.
  • the hole 19 has a circular shape, but the present invention is not limited to this.
  • the shape of the hole 19 may be an ellipse, a rectangle, or a slit.
  • the hole E 19 is not provided at all in the region E3 which is the central region of the flexible base sheet 15, but the present invention is not limited to this. If necessary for heat dissipation, air permeability, etc., the hole 19 may be provided in the region E3. However, in this case, in order to ensure the strength and the like of the region E3, the aperture ratio of the region E3 is preferably lower than the aperture ratios of the regions E1 and E2.
  • the flexible base sheet 15 is formed in a rectangular shape having a longitudinal direction and a short direction, but the present invention is not limited to this.
  • the flexible base sheet 15 may be formed in a circular shape as shown in FIG. In this case, it is easy to increase the length of the coil antenna 11, and it is possible to make it easier to secure enough power to drive the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14.
  • the exposed surface of the temperature sensor 14 and the exposed surface of the adhesive layer 18 are shown to be flush with each other, but the present invention is not limited to this.
  • the temperature sensor 14 is provided so as to protrude from the surface of the adhesive layer 18 to the side away from the flexible base sheet 15 in the thickness direction of the flexible base sheet 15. May be. According to this configuration, it is possible to improve the adhesion between the temperature sensor 14 and the object and improve the temperature detection accuracy of the object.
  • the hole 19 is provided on the outer peripheral side of the flexible base sheet 15 with respect to the temperature sensor 14, and the stretchability around the hole 19 is improved, so that the object and the adhesive layer 18 It is possible to suppress the formation of a gap due to the protrusion of the temperature sensor 14 between the two. Thereby, the adhesiveness and mounting
  • the outer peripheral surface of the temperature sensor 14 and the adhesive layer 18 do not need to be in contact with each other, and a gap may be formed between them. Further, the thickness of the adhesive layer 18 does not need to be uniform. For example, the portion of the adhesive layer 18 located around the temperature sensor 14 may be recessed.
  • a cushion layer non-adhesive material having higher thermal conductivity than the adhesive layer 18 is partially provided around the temperature sensor 14. Thereby, a wearer's discomfort can be suppressed. Further, by making the cushion layer have high thermal conductivity, only the periphery of the temperature sensor 14 can be made sensitive to temperature changes.
  • the adhesive layer 18 is preferably provided so as to cover the coil antenna 11. Since the strength becomes relatively high by providing the coil antenna 11 made of copper foil or the like, the adhesive layer 18 and the object can be attached more reliably. Note that the adhesive layer 18 is preferably provided in the vicinity of the periphery of the temperature sensor 14 from the viewpoint of improving the adhesion and mounting properties between the temperature sensor 14 and the object. As a result, the temperature sensor 14 can be securely fixed while preventing the temperature sensor 14 from being displaced from the object.
  • the temperature sensor 14 is more than the surface of the adhesive layer 18 among the surface-mounted components mounted on one main surface of the flexible base sheet 15. It is preferable to protrude to the side away from the flexible substrate sheet 15. According to this configuration, the adhesion between the temperature sensor 14 and the object can be further improved, and the temperature detection accuracy of the object can be further improved.
  • the thickness t1 of the flexible base sheet 15 is preferably thinner than the thickness t2 of the adhesive layer 18.
  • the thickness t1 of the flexible base sheet 15 is 20 to 40 ⁇ m, for example.
  • the thickness t2 of the adhesive layer 18 is, for example, 100 ⁇ 10 ⁇ m.
  • the thickness t3 of the temperature sensor 14 is, for example, 500 ⁇ m. It is preferable that at least half of the temperature sensor 14 protrudes from the adhesive layer 18.
  • the protrusion amount is preferably 0.2 ⁇ m or more, and more preferably 0.4 ⁇ m or more.
  • the wireless communication device 1 includes the adhesive layer 18, but the present invention is not limited to this.
  • the adhesive layer 18 may be attached to the object side in advance, and the wireless communication device 1 does not need to be provided.
  • the wireless communication device with a temperature sensor eliminates the need for a battery and can stably monitor temperature information of an object, so that the temperature sensor can be attached to an object such as a human body or an article. It is useful as an attached wireless communication device.
  • Wireless communication device wireless communication device with temperature sensor
  • External equipment Coil antenna
  • Coil antenna Wireless communication circuit 13
  • Control circuit Temperature sensor 15
  • Flexible substrate sheet 16
  • Bridge conductor 18 Adhesive layer 19 Hole

Abstract

Provided is a wireless communication device enabling to eliminate the need for providing a battery, and to stably monitor temperature information of a subject to be monitored. This temperature sensor-attached wireless communication device is provided with: a coil antenna; a wireless communication circuit, which is connected to the coil antenna, and which performs wireless communication with an external apparatus via the coil antenna; a temperature sensor that detects the temperature of a subject the temperature of which is to be detected; a control circuit, which is connected to the wireless communication circuit and the temperature sensor, and which controls the drive of the temperature sensor; and a flexible base material sheet having mounted thereon the coil antenna, wireless communication circuit, control circuit, and temperature sensor. The temperature sensor-attached wireless communication device is configured such that the wireless communication circuit, control circuit, and temperature sensor are driven by power generated due to magnetic field coupling of the coil antenna with the external apparatus, and temperature information detected by the temperature sensor is transmitted to the external apparatus via the coil antenna.

Description

温度センサ付き無線通信デバイスWireless communication device with temperature sensor
　本発明は、人体や物品などの対象物に取付可能な温度センサ付き無線通信デバイスに関する。 The present invention relates to a wireless communication device with a temperature sensor that can be attached to an object such as a human body or an article.
　従来、人体や物品などの対象物に取り付けられた温度センサ付き無線通信デバイスを利用して、体温等の温度情報をモニタリングする方法が提案されている（例えば、特許文献１参照）。 Conventionally, a method of monitoring temperature information such as body temperature using a wireless communication device with a temperature sensor attached to an object such as a human body or an article has been proposed (for example, see Patent Document 1).
特表２０１３－５１５５２８号公報Special table 2013-515528
　この種の無線通信デバイスは、温度センサ、マイクロコンピュータ、無線通信回路などに駆動電圧を供給するバッテリーを備えている。このため、当該バッテリーの分だけ、大きさや重量が増加し、人体又は物品への装着性が阻害されるという課題がある。 This type of wireless communication device includes a battery for supplying a driving voltage to a temperature sensor, a microcomputer, a wireless communication circuit, and the like. For this reason, there exists a subject that a magnitude | size and a weight will increase by the part of the said battery and the mounting | wearing property to a human body or goods will be inhibited.
　また、無線通信には、ブルートゥース(Blue Tooth：登録商標)や無線ＬＡＮなどの通信手段が利用される。しかしながら、これらの通信手段は、比較的キャリア周波数が高いため、通信特性が対象物によって阻害されやすく、対象物の温度情報を安定してモニタリングし難いという課題がある。 For wireless communication, communication means such as Bluetooth (registered trademark) or wireless LAN is used. However, since these communication means have a relatively high carrier frequency, there is a problem that the communication characteristics are easily obstructed by the object, and it is difficult to stably monitor the temperature information of the object.
　従って、本発明の目的は、前記課題を解決することにあって、バッテリーを備える必要性を無くすとともに、対象物の温度情報を安定してモニタリングすることができる無線通信デバイスを提供することにある。 Accordingly, an object of the present invention is to provide a wireless communication device that solves the above-described problems and eliminates the need for a battery and can stably monitor temperature information of an object. .
　前記目的を達成するために、本発明に係る温度センサ付き無線通信デバイスは、
　コイルアンテナと、
　前記コイルアンテナに接続され、当該コイルアンテナを介して外部機器と無線通信を行う無線通信回路と、
　対象物の温度を検知する温度センサと、
　前記無線通信回路及び前記温度センサに接続され、前記温度センサの駆動を制御する制御回路と、
　前記コイルアンテナ、前記無線通信回路、前記制御回路、及び前記温度センサが実装される可撓性基材シートと、
　を備え、
　前記コイルアンテナが前記外部機器と磁界結合することによって生じた電力により、前記無線通信回路、前記制御回路、及び前記温度センサが駆動され、前記温度センサが検知した温度情報が前記コイルアンテナを介して前記外部機器に送信される、
　ように構成されている。 In order to achieve the above object, a wireless communication device with a temperature sensor according to the present invention comprises:
A coil antenna;
A wireless communication circuit connected to the coil antenna and performing wireless communication with an external device via the coil antenna;
A temperature sensor for detecting the temperature of the object;
A control circuit which is connected to the wireless communication circuit and the temperature sensor and controls driving of the temperature sensor;
A flexible base sheet on which the coil antenna, the wireless communication circuit, the control circuit, and the temperature sensor are mounted;
With
The wireless communication circuit, the control circuit, and the temperature sensor are driven by the electric power generated when the coil antenna is magnetically coupled to the external device, and temperature information detected by the temperature sensor is transmitted via the coil antenna. Transmitted to the external device,
It is configured as follows.
　本発明に係る温度センサ付き無線通信デバイスによれば、バッテリーを備える必要性を無くすとともに、対象物の温度情報を安定してモニタリングすることができる。 According to the wireless communication device with a temperature sensor according to the present invention, it is possible to stably monitor temperature information of an object while eliminating the necessity of providing a battery.
本実施の形態に係る温度センサ付き無線通信デバイスが人体に取り付けられた例を示す図である。It is a figure which shows the example with which the radio | wireless communication device with a temperature sensor which concerns on this Embodiment was attached to the human body. 図１に示す無線通信デバイスの構成図である。It is a block diagram of the radio | wireless communication device shown in FIG. 図１に示す無線通信デバイスの平面図である。It is a top view of the radio | wireless communication device shown in FIG. 図３のＡ１－Ａ１線断面図である。FIG. 4 is a cross-sectional view taken along line A1-A1 of FIG. 本実施の形態に係る温度センサ付き無線通信デバイスの変形例を示す平面図である。It is a top view which shows the modification of the radio | wireless communication device with a temperature sensor which concerns on this Embodiment. 本実施の形態に係る温度センサ付き無線通信デバイスの他の変形例を示す断面図である。It is sectional drawing which shows the other modification of the radio | wireless communication device with a temperature sensor which concerns on this Embodiment.
　本発明の一態様に係る温度センサ付き無線通信デバイスは、
　コイルアンテナと、
　前記コイルアンテナに接続され、当該コイルアンテナを介して外部機器と無線通信を行う無線通信回路と、
　対象物の温度を検知する温度センサと、
　前記無線通信回路及び前記温度センサに接続され、前記温度センサの駆動を制御する制御回路と、
　前記コイルアンテナ、前記無線通信回路、前記制御回路、及び前記温度センサが実装される可撓性基材シートと、
　を備え、
　前記コイルアンテナが前記外部機器と磁界結合することによって生じた電力により、前記無線通信回路、前記制御回路、及び前記温度センサが駆動され、前記温度センサが検知した温度情報が前記コイルアンテナを介して前記外部機器に送信される、
　ように構成されている。 A wireless communication device with a temperature sensor according to an aspect of the present invention includes:
A coil antenna;
A wireless communication circuit connected to the coil antenna and performing wireless communication with an external device via the coil antenna;
A temperature sensor for detecting the temperature of the object;
A control circuit which is connected to the wireless communication circuit and the temperature sensor and controls driving of the temperature sensor;
A flexible base sheet on which the coil antenna, the wireless communication circuit, the control circuit, and the temperature sensor are mounted;
With
The wireless communication circuit, the control circuit, and the temperature sensor are driven by the electric power generated when the coil antenna is magnetically coupled to the external device, and temperature information detected by the temperature sensor is transmitted via the coil antenna. Transmitted to the external device,
It is configured as follows.
　この構成によれば、コイルアンテナが外部機器と磁界結合することによって生じた電力を利用して、無線通信回路、制御回路、及び温度センサを駆動するので、それらを駆動させるためにバッテリーを備える必要性を無くすことができる。これにより、小型・薄型・軽量・低コスト化を実現することができ、人体や物品への装着性が阻害されることを抑えることができる。 According to this configuration, the radio communication circuit, the control circuit, and the temperature sensor are driven by using the electric power generated by the coil antenna being magnetically coupled to the external device, and therefore it is necessary to provide a battery for driving them. Sex can be lost. As a result, it is possible to realize a small size, a thin shape, a light weight, and a low cost, and it is possible to suppress an impediment to attachment to a human body or an article.
　また、この構成によれば、温度センサが検知した温度情報がコイルアンテナを介して外部機器に送信されるようにしている。すなわち、磁界通信（近傍界通信）を利用して、当該温度情報を外部機器に送信するようにしている。これにより、対象物の温度情報を安定してモニタリングすることができる。 Further, according to this configuration, temperature information detected by the temperature sensor is transmitted to the external device via the coil antenna. That is, the temperature information is transmitted to an external device using magnetic field communication (near-field communication). Thereby, the temperature information of a target object can be monitored stably.
　なお、前記可撓性基材シートの一方の主面には、接着層が設けられ、前記可撓性基材シートは、前記接着層を介して前記対象物に取り付けられることが好ましい。この構成によれば、コイルアンテナと対象物との間に接着層が配置されることになるので、当該接着層の厚み分、コイルアンテナの通信特性が対象物による影響を受けることを抑えることができる。 In addition, it is preferable that an adhesive layer is provided on one main surface of the flexible base sheet, and the flexible base sheet is attached to the object via the adhesive layer. According to this configuration, since the adhesive layer is disposed between the coil antenna and the object, it is possible to suppress the influence of the object on the communication characteristics of the coil antenna by the thickness of the adhesive layer. it can.
　また、前記温度センサは、前記可撓性基材シートの前記一方の主面に設けられることが好ましい。この構成によれば、温度センサが可撓性基材シートよりも対象物側に配置されることになるので、対象物の温度測定の感度を向上させることができる。 The temperature sensor is preferably provided on the one main surface of the flexible base sheet. According to this configuration, since the temperature sensor is arranged on the object side relative to the flexible base sheet, the sensitivity of the temperature measurement of the object can be improved.
　また、前記温度センサと前記無線通信回路とは互いに離れて配置され、前記温度センサと前記無線通信回路との間に前記制御回路が配置されることが好ましい。この構成によれば、比較的発熱性が高い無線通信回路を温度センサから離すことができるので、無線通信回路から発生した熱が温度センサの温度情報に影響を与えることを抑えることができる。 Further, it is preferable that the temperature sensor and the wireless communication circuit are disposed apart from each other, and the control circuit is disposed between the temperature sensor and the wireless communication circuit. According to this configuration, since the wireless communication circuit having a relatively high heat generation property can be separated from the temperature sensor, it is possible to suppress the heat generated from the wireless communication circuit from affecting the temperature information of the temperature sensor.
　また、前記可撓性基材シートには、前記制御回路から見て前記無線通信回路よりも離れた領域及び前記制御回路から見て前記温度センサよりも離れた領域に、複数の孔部が設けられることが好ましい。この構成によれば、複数の孔部によって可撓性基材シートの放熱性、通気性等を向上させることができる。また、複数の孔部によって伸縮性を向上させることもできるので、可撓性基材シートを対象物の曲面等に取り付けることを容易にすることができる。 The flexible base sheet is provided with a plurality of holes in a region farther from the wireless communication circuit as viewed from the control circuit and a region away from the temperature sensor from the control circuit. It is preferred that According to this structure, the heat dissipation of a flexible base material sheet, air permeability, etc. can be improved with a some hole part. In addition, since the stretchability can be improved by the plurality of holes, it is possible to easily attach the flexible base sheet to the curved surface of the object.
　また、前記制御回路から見て前記無線通信回路よりも近い領域及び前記制御回路から見て前記温度センサよりも近い領域には、前記孔部を設けないことが好ましい。すなわち、無線通信回路、制御回路、及び温度センサを設けた領域には、孔部を設けないことが好ましい。この構成によれば、孔部を設けていない領域は、孔部を設けた領域よりも強度が高くなるので、可撓性基材シートを対象物の曲面等に貼り付ける際、無線通信回路、制御回路、及び温度センサに加わる曲げ応力を低減することができる。また、可撓性基材シートが変形することによって各表面実装部品を接続する配線が断線することを抑えることができる。 Further, it is preferable that the hole is not provided in a region closer to the wireless communication circuit as viewed from the control circuit and a region closer to the temperature sensor from the control circuit. That is, it is preferable not to provide a hole in a region where the wireless communication circuit, the control circuit, and the temperature sensor are provided. According to this configuration, since the region where the hole is not provided is stronger than the region where the hole is provided, the wireless communication circuit, when the flexible base sheet is attached to the curved surface of the object, The bending stress applied to the control circuit and the temperature sensor can be reduced. Moreover, it can suppress that the wiring which connects each surface mounting component by a deformation | transformation of a flexible base material sheet breaks.
　また、前記可撓性基材シートは、平面視において長手方向及び短手方向を有し、前記長手方向の一端部の周辺領域及び前記長手方向の他端部の周辺領域に、それぞれ前記孔部が設けられることが好ましい。この構成によれば、可撓性基材シートの長手方向の両端部の伸縮性を向上させることができ、取扱い性を向上させることができる。 Further, the flexible base sheet has a longitudinal direction and a lateral direction in a plan view, and the hole portion is provided in a peripheral region at one end portion in the longitudinal direction and a peripheral region at the other end portion in the longitudinal direction, respectively. Is preferably provided. According to this structure, the elasticity of the both ends of the longitudinal direction of a flexible base material sheet can be improved, and handleability can be improved.
　また、前記無線通信回路及び前記温度センサは、前記孔部が形成された孔部形成領域と前記孔部が形成されていない孔部非形成領域との境界近傍に配置されることが好ましい。この構成によれば、無線通信回路と温度センサとをより一層離すことができるので、無線通信回路から発生した熱が温度センサの温度情報に影響を与えることをより一層抑えることができる。 Further, it is preferable that the wireless communication circuit and the temperature sensor are arranged in the vicinity of a boundary between a hole forming region where the hole is formed and a hole non-forming region where the hole is not formed. According to this configuration, since the wireless communication circuit and the temperature sensor can be further separated, it is possible to further suppress the heat generated from the wireless communication circuit from affecting the temperature information of the temperature sensor.
　また、前記コイルアンテナは、平面視において、前記無線通信回路、前記制御回路、及び前記温度センサを囲むように配置された螺旋状のコイルパターンを有することが好ましい。この構成によれば、可撓性基材シートの外周部と各表面実装部品との間にコイルアンテナが介在することになるので、可撓性基材シートの外周部から各表面実装部品に向けて加わる衝撃を、コイルアンテナにより軽減することができる。 In addition, it is preferable that the coil antenna has a spiral coil pattern disposed so as to surround the wireless communication circuit, the control circuit, and the temperature sensor in plan view. According to this configuration, since the coil antenna is interposed between the outer peripheral portion of the flexible base sheet and each surface mount component, the outer periphery of the flexible base sheet is directed to each surface mount component. The impact applied can be reduced by the coil antenna.
　また、前記コイルアンテナは、前記可撓性基材シートの外周部に沿うように配置されることが好ましい。この構成によれば、可撓性基材シートの面積を最大限に活用してコイルアンテナの長さを長くすることができる。その結果、無線通信回路、制御回路、及び温度センサを駆動するのに十分な電力を確保し易くすることができる。 Moreover, it is preferable that the coil antenna is disposed along the outer peripheral portion of the flexible base sheet. According to this structure, the length of a coil antenna can be lengthened using the area of a flexible base material sheet to the maximum. As a result, it is possible to easily secure sufficient power for driving the wireless communication circuit, the control circuit, and the temperature sensor.
　また、前記可撓性基材シートの厚さ方向において、前記温度センサが前記接着層の表面よりも前記可撓性基材シートから離れる側に突出するように設けられることが好ましい。この構成によれば、温度センサと対象物との密着性を向上させて、対象物の温度の検知精度を向上させることができる。 In the thickness direction of the flexible base sheet, the temperature sensor is preferably provided so as to protrude from the surface of the adhesive layer to the side away from the flexible base sheet. According to this structure, the adhesiveness of a temperature sensor and a target object can be improved, and the detection accuracy of the temperature of a target object can be improved.
　以下、本発明の実施の形態について、図面を参照しながら説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　《実施の形態》
　本発明の実施の形態に係る温度センサ付き無線通信デバイス（以下、無線通信デバイスという）について説明する。本実施の形態に係る無線通信デバイスは、人体や物品などの対象物に取り付けられ、当該対象物の温度を検知可能なシール型の無線通信デバイスである。 << Embodiment >>
A wireless communication device with a temperature sensor (hereinafter referred to as a wireless communication device) according to an embodiment of the present invention will be described. The wireless communication device according to this embodiment is a seal-type wireless communication device that is attached to an object such as a human body or an article and can detect the temperature of the object.
　図１は、本実施の形態に係る無線通信デバイス１が人体ＨＢに取り付けられた例を示す図である。本実施の形態に係る無線通信デバイス１は、バッテリーを有さず、スマートフォンなどの外部機器２から電力を受けて駆動されるように構成されている。このデバイスは人体に直接貼着されていてもよいし、衣類の上から貼着されていてもよい。 FIG. 1 is a diagram illustrating an example in which a wireless communication device 1 according to the present embodiment is attached to a human body HB. The wireless communication device 1 according to the present embodiment does not have a battery and is configured to be driven by receiving power from an external device 2 such as a smartphone. This device may be directly attached to the human body, or may be attached from above the clothing.
　図２は、図１に示す無線通信デバイス１の構成図である。図３は、図１に示す無線通信デバイス１の平面図である。図４は、図３のＡ１－Ａ１線断面図である。 FIG. 2 is a block diagram of the wireless communication device 1 shown in FIG. FIG. 3 is a plan view of the wireless communication device 1 shown in FIG. 4 is a cross-sectional view taken along line A1-A1 of FIG.
　図２～図４に示すように、無線通信デバイス１は、コイルアンテナ１１と、無線通信回路１２と、制御回路１３と、温度センサ１４とを備えている。コイルアンテナ１１、無線通信回路１２、制御回路１３、及び温度センサ１４は、図３及び図４に示すように、可撓性基材シート１５の一方の主面１５ａ上に実装されている。 As shown in FIGS. 2 to 4, the wireless communication device 1 includes a coil antenna 11, a wireless communication circuit 12, a control circuit 13, and a temperature sensor 14. As shown in FIGS. 3 and 4, the coil antenna 11, the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 are mounted on one main surface 15 a of the flexible base sheet 15.
　コイルアンテナ１１は、図１に示す外部機器２（より具体的には、外部機器２が有するコイルアンテナ）と磁界結合することによって電力を生じさせるとともに、外部機器２と無線通信を行うものである。本実施の形態において、コイルアンテナ１１は、図３に示すように、キャパシタ１６に並列に接続されている。コイルアンテナ１１とキャパシタ１６とによりアンテナ共振回路が構成されている。このアンテナ共振回路と外部機器２のコイルアンテナ（図示せず）とが磁界結合することにより、損失の少ない電力を受け取ることができる。キャパシタ１６のキャパシタンスは、当該アンテナ共振回路の共振周波数があらかじめ決められた周波数（例えば、ＨＦ（１３．５６ＭＨｚ）帯の周波数）になるように決定されている。 The coil antenna 11 generates electric power by magnetic coupling with the external device 2 shown in FIG. 1 (more specifically, a coil antenna included in the external device 2), and performs wireless communication with the external device 2. . In the present embodiment, the coil antenna 11 is connected to the capacitor 16 in parallel as shown in FIG. The coil antenna 11 and the capacitor 16 constitute an antenna resonance circuit. When this antenna resonance circuit and a coil antenna (not shown) of the external device 2 are magnetically coupled, it is possible to receive power with little loss. The capacitance of the capacitor 16 is determined such that the resonance frequency of the antenna resonance circuit is a predetermined frequency (for example, a frequency in the HF (13.56 MHz) band).
　また、本実施の形態において、コイルアンテナ１１は、導体線を複数ターン、コイル状に巻いた平面コイルである。コイルアンテナ１１は、図３に示すように、平面視において、無線通信回路１２、制御回路１３、及び温度センサ１４を囲むように配置された螺旋状のコイルパターンを有している。コイルアンテナ１１は、可撓性基材シート１５の外周部に沿うように配置されている。 In the present embodiment, the coil antenna 11 is a planar coil in which a conductor wire is wound in a coil shape for a plurality of turns. As shown in FIG. 3, the coil antenna 11 has a spiral coil pattern arranged so as to surround the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 in a plan view. The coil antenna 11 is disposed along the outer periphery of the flexible base sheet 15.
　また、コイルアンテナ１１は、可撓性基材シート１５と共に湾曲させることができるように、可撓性を有している。コイルアンテナ１１は、例えば、銅箔で構成されている。 Further, the coil antenna 11 has flexibility so that it can be bent together with the flexible base sheet 15. The coil antenna 11 is made of, for example, copper foil.
　無線通信回路１２は、コイルアンテナ１１に接続され、コイルアンテナ１１を介して外部機器２と無線通信を行うものである。無線通信回路１２の入力側の配線１２ａは、コイルアンテナ１１の一端部に接続されている。無線通信回路１２の出力側の配線１２ｂは、ブリッジ導体１７を介してコイルアンテナ１１の他端部に接続されている。 The wireless communication circuit 12 is connected to the coil antenna 11 and performs wireless communication with the external device 2 via the coil antenna 11. The input side wiring 12 a of the wireless communication circuit 12 is connected to one end of the coil antenna 11. The output-side wiring 12 b of the wireless communication circuit 12 is connected to the other end of the coil antenna 11 via the bridge conductor 17.
　無線通信回路１２は、例えば、Ｉ２Ｃ（アイスクエアシー）インターフェース付きのＲＦＩＣチップである。無線通信回路１２は、信号処理回路やメモリ回路等を有し、コイルアンテナ１１が外部機器２と磁界結合することによって生じた電力により駆動するとともに、当該電力を制御回路１３に供給する。無線通信回路１２は、バッテリーを有さない、いわゆるパッシブ型のタグである。 The wireless communication circuit 12 is, for example, an RFIC chip with an I 2 C (eye square sea) interface. The wireless communication circuit 12 includes a signal processing circuit, a memory circuit, and the like, and is driven by power generated when the coil antenna 11 is magnetically coupled to the external device 2 and supplies the power to the control circuit 13. The wireless communication circuit 12 is a so-called passive tag that does not have a battery.
　制御回路１３は、配線１３ａ，１３ｂにより無線通信回路１２に接続されている。制御回路１３は、無線通信回路１２から供給された電力により駆動し、外部機器２からの要求に応じて温度センサ１４の駆動を制御する。制御回路１３は、例えば、ＣＰＵ／ＭＰＵに代表されるマイコンチップである。制御回路１３は、温度センサ１４の駆動を制御する所定のプログラムを記憶するメモリを備えている。 The control circuit 13 is connected to the wireless communication circuit 12 by wires 13a and 13b. The control circuit 13 is driven by the power supplied from the wireless communication circuit 12 and controls the driving of the temperature sensor 14 in response to a request from the external device 2. The control circuit 13 is, for example, a microcomputer chip represented by a CPU / MPU. The control circuit 13 includes a memory that stores a predetermined program for controlling the driving of the temperature sensor 14.
　温度センサ１４は、配線１４ａ，１４ｂにより制御回路１３と接続されている。温度センサ１４は、制御回路１３から供給された電力により駆動し、人体ＨＢや物品などの対象物の温度、あるいは気温を検知する。温度センサ１４が検知した温度情報（例えば、電圧情報）は、制御回路１３、無線通信回路１２、及びコイルアンテナ１１を介して外部機器２に送信される。この際、温度センサ１４が検知した温度情報に対して、例えば、制御回路１３にて温度に換算するなどの処理が行なわれてもよい。 The temperature sensor 14 is connected to the control circuit 13 by wires 14a and 14b. The temperature sensor 14 is driven by the electric power supplied from the control circuit 13 and detects the temperature of an object such as a human body HB or an article, or the air temperature. Temperature information (for example, voltage information) detected by the temperature sensor 14 is transmitted to the external device 2 via the control circuit 13, the wireless communication circuit 12, and the coil antenna 11. At this time, for example, the control circuit 13 may convert the temperature information detected by the temperature sensor 14 into a temperature.
　温度センサ１４は、例えば、表面実装型のサーミスタである。温度センサ１４としては、例えば、ＮＴＣサーミスタ、ＰＴＣサーミスタ、金属抵抗体、熱電対を用いてもよい。ＮＴＣサーミスタは、温度が上昇するに連れて抵抗値が減少する性質を有し、検知可能な温度範囲が広く、コストが安いという特徴がある。金属抵抗体は、電気抵抗が温度にほぼ比例して変化することを利用するものである。熱電対は、２種類の金属を積層し、その界面における温度差によって生じる起電力を利用するものである。なお、温度センサ１４は、１つのサーミスタを備えることに限定されるものではなく、複数のサーミスタを備えてもよい。また、温度センサ１４は、異なる特性を有する複数の温度センサを組み合わせて構成されてもよい。 The temperature sensor 14 is, for example, a surface mount type thermistor. For example, an NTC thermistor, a PTC thermistor, a metal resistor, or a thermocouple may be used as the temperature sensor 14. The NTC thermistor has the property that the resistance value decreases as the temperature rises, and is characterized by a wide detectable temperature range and low cost. The metal resistor utilizes the fact that the electric resistance changes almost in proportion to the temperature. A thermocouple is formed by laminating two kinds of metals and using an electromotive force generated by a temperature difference at the interface. The temperature sensor 14 is not limited to including one thermistor, and may include a plurality of thermistors. Moreover, the temperature sensor 14 may be configured by combining a plurality of temperature sensors having different characteristics.
　温度センサ１４は、図３に示すように、無線通信回路１２から離れて配置されている。温度センサ１４と無線通信回路１２との間に、制御回路１３が配置されている。本実施の形態において、制御回路１３は、平面視において、無線通信回路１２及び温度センサ１４よりも大きい外径寸法を有している。従って、温度センサ１４と無線通信回路１２とは、比較的大きな距離離れて配置されている。また、温度センサ１４と無線通信回路１２とは、無線通信デバイス１の中央部からそれぞれ反対方向にオフセットして配置されている。 The temperature sensor 14 is arranged away from the wireless communication circuit 12 as shown in FIG. A control circuit 13 is disposed between the temperature sensor 14 and the wireless communication circuit 12. In the present embodiment, the control circuit 13 has a larger outer diameter than the wireless communication circuit 12 and the temperature sensor 14 in plan view. Therefore, the temperature sensor 14 and the wireless communication circuit 12 are arranged at a relatively large distance. Further, the temperature sensor 14 and the wireless communication circuit 12 are arranged offset from the central portion of the wireless communication device 1 in opposite directions.
　可撓性基材シート１５は、例えば、液晶ポリマー（ＬＣＰ）製のシートである。可撓性基材シート１５は、接着層１８よりも低い水分透過率（例えば、０．６ｇ／ｍ２・２４ｈ（ＪＩＳ　Ｚ０２０８による））を有している。これにより、可撓性基材シート１５は、外側から接着層１８側に水分が侵入することを抑えて、表面実装部品が水分により短絡することを抑えるように機能する。また、可撓性基材シート１５は、無線通信デバイス１が対象物に取り付けられた際、無線通信回路１２、制御回路１３、温度センサ１４等の保護フィルムとして機能する。本実施の形態において、可撓性基材シート１５は、長手方向、短手方向を有する矩形状に形成されている。なお、可撓性基材シート１５は、所定のデザインを模した形状であってもよい。また、可撓性基材シート１５は、温度センサ１４の温度の検知精度を向上させるため、熱伝導性が小さいものであることが好ましい。 The flexible base sheet 15 is, for example, a liquid crystal polymer (LCP) sheet. The flexible base sheet 15 has a moisture permeability lower than that of the adhesive layer 18 (for example, 0.6 g / m 2 · 24 h (according to JIS Z0208)). Thereby, the flexible base material sheet 15 functions to suppress moisture from entering the adhesive layer 18 side from the outside and to prevent the surface-mounted component from being short-circuited by moisture. The flexible base sheet 15 functions as a protective film for the wireless communication circuit 12, the control circuit 13, the temperature sensor 14, and the like when the wireless communication device 1 is attached to an object. In this Embodiment, the flexible base material sheet 15 is formed in the rectangular shape which has a longitudinal direction and a transversal direction. Note that the flexible base sheet 15 may have a shape simulating a predetermined design. Moreover, in order to improve the temperature detection accuracy of the temperature sensor 14, it is preferable that the flexible base sheet 15 has a small thermal conductivity.
　可撓性基材シート１５の一方の主面１５ａには、接着層１８が設けられている。可撓性基材シート１５は、接着層１８を介して人体ＨＢなどの対象物に取り付けられる。なお、図３においては、接着層１８の図示を省略している。 An adhesive layer 18 is provided on one main surface 15 a of the flexible base sheet 15. The flexible base sheet 15 is attached to an object such as a human body HB via the adhesive layer 18. In FIG. 3, the illustration of the adhesive layer 18 is omitted.
　接着層１８は、例えば、ポリエーテル系の両面テープである。接着層１８は、可撓性基材シート１５よりも高い水分透過率（例えば、５，０００ｇ／ｍ２・２４ｈ（ＪＩＳ　Ｚ０２０８による））を有している。これにより、対象物から放出される水分を接着層１８の外周側面から放出して、当該水分が接着層１８内に滞留することにより温度センサ１４の検知精度が低下することを抑えることができる。本実施の形態において、接着層１８は、無線通信回路１２、制御回路１３、温度センサ１４等の表面実装部品の形成領域を除く可撓性基材シート１５の全面に取り付けられている。これにより、接着層１８は、可撓性基材シート１５上に形成される配線パターンの保護層として機能する。なお、接着層１８の外側粘着面には、カバーテープ（図示せず）が設けられてもよい。この場合、当該カバーテープを剥がした後、無線通信デバイス１の接着層１８を対象物に取り付ければよい。すなわち、無線通信デバイス１は、シール型（バンソウコウ（adhesive plaster）型）であってもよい。 The adhesive layer 18 is, for example, a polyether-based double-sided tape. The adhesive layer 18 has a moisture permeability higher than that of the flexible base sheet 15 (for example, 5,000 g / m 2 · 24 h (according to JIS Z0208)). Accordingly, it is possible to suppress a decrease in detection accuracy of the temperature sensor 14 due to the release of moisture released from the object from the outer peripheral side surface of the adhesive layer 18 and the retention of the moisture in the adhesive layer 18. In the present embodiment, the adhesive layer 18 is attached to the entire surface of the flexible base sheet 15 excluding the formation region of the surface-mounted components such as the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14. Thereby, the adhesive layer 18 functions as a protective layer for the wiring pattern formed on the flexible substrate sheet 15. A cover tape (not shown) may be provided on the outer adhesive surface of the adhesive layer 18. In this case, the adhesive layer 18 of the wireless communication device 1 may be attached to the object after the cover tape is peeled off. That is, the wireless communication device 1 may be a seal type (adhesive plaster type).
　また、可撓性基材シート１５には、図３に示すように、制御回路１３から見て無線通信回路１２よりも離れた領域Ｅ１及び制御回路１３から見て温度センサ１４よりも離れた領域Ｅ２に、複数の孔部１９が設けられている。すなわち、本実施の形態においては、可撓性基材シート１５の長手方向Ｌの一端部の周辺領域である領域Ｅ１及び可撓性基材シート１５の長手方向Ｌの他端部の周辺領域である領域Ｅ２に、それぞれ孔部１９が設けられている。これらの領域Ｅ１，Ｅ２は、孔部形成領域ともいう。 Further, as shown in FIG. 3, the flexible base sheet 15 has a region E1 that is farther than the wireless communication circuit 12 when viewed from the control circuit 13 and a region that is farther than the temperature sensor 14 when viewed from the control circuit 13. A plurality of holes 19 are provided in E2. That is, in the present embodiment, the region E1 that is the peripheral region of one end portion in the longitudinal direction L of the flexible base sheet 15 and the peripheral region of the other end portion in the longitudinal direction L of the flexible base sheet 15 are used. A hole 19 is provided in each region E2. These regions E1 and E2 are also referred to as hole forming regions.
　本実施の形態において、孔部１９は、可撓性基材シート１５及び接着層１８を貫通するように設けられている。孔部１９によって、可撓性基材シート１５の放熱性、通気性等を向上させることができる。また、孔部１９の個数、大きさ、及び位置に応じて、無線通信デバイス１が有する可撓性、強度等を制御することができる。 In the present embodiment, the hole 19 is provided so as to penetrate the flexible base sheet 15 and the adhesive layer 18. The holes 19 can improve heat dissipation, air permeability, and the like of the flexible base sheet 15. Further, the flexibility, strength, and the like of the wireless communication device 1 can be controlled according to the number, size, and position of the holes 19.
　また、領域Ｅ１と領域Ｅ２との間の領域Ｅ３には、無線通信回路１２、制御回路１３、温度センサ１４等の表面実装部品が配置される。当該領域Ｅ３は、当該表面実装部品を接続するための配線が密に配置される領域である。このため、本実施の形態において、領域Ｅ３には、孔部１９を設けないようにしている。この領域Ｅ３は、孔部非形成領域ともいう。無線通信回路１２は、領域Ｅ１と領域Ｅ３との境界近傍に配置されている。一方、温度センサ１４は、領域Ｅ２と領域Ｅ３との境界近傍に配置されている。 Further, in the region E3 between the region E1 and the region E2, surface mount components such as the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 are arranged. The region E3 is a region where wirings for connecting the surface mount components are densely arranged. For this reason, in this embodiment, the hole 19 is not provided in the region E3. This region E3 is also referred to as a hole non-formation region. The wireless communication circuit 12 is disposed in the vicinity of the boundary between the region E1 and the region E3. On the other hand, the temperature sensor 14 is disposed in the vicinity of the boundary between the region E2 and the region E3.
　本実施の形態によれば、コイルアンテナ１１が外部機器２と磁界結合することによって生じた電力を利用して、無線通信回路１２、制御回路１３、及び温度センサ１４を駆動するように構成されている。この構成によれば、無線通信回路１２、制御回路１３、及び温度センサ１４を駆動させるためにバッテリーを備える必要性を無くすことができる。これにより、無線通信デバイス１の小型・薄型・軽量・低コスト化を実現することができ、人体や物品への装着性が阻害されることを抑えることができる。 According to the present embodiment, the radio communication circuit 12, the control circuit 13, and the temperature sensor 14 are driven using the electric power generated by the coil antenna 11 being magnetically coupled to the external device 2. Yes. According to this configuration, it is possible to eliminate the necessity of providing a battery for driving the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14. As a result, the wireless communication device 1 can be reduced in size, thickness, weight, and cost, and it is possible to suppress the impediment to attachment to a human body or an article.
　また、本実施の形態によれば、温度センサ１４が検知した温度情報がコイルアンテナ１１を介して外部機器２に送信されるように構成されている。すなわち、磁界通信（近傍界通信）を利用して、当該温度情報を外部機器２に送信するように構成されている。これにより、対象物の温度情報を安定してモニタリングすることができる。 Further, according to the present embodiment, the temperature information detected by the temperature sensor 14 is configured to be transmitted to the external device 2 via the coil antenna 11. That is, the temperature information is transmitted to the external device 2 using magnetic field communication (near-field communication). Thereby, the temperature information of a target object can be monitored stably.
　また、本実施の形態によれば、可撓性基材シート１５の一方の主面１５ａに接着層１８が設けられ、可撓性基材シート１５は接着層１８を介して対象物に取り付けられるように構成されている。この構成によれば、コイルアンテナ１１と対象物との間に接着層１８が配置されることになるので、当該接着層１８の厚み分、コイルアンテナ１１の通信特性が対象物による影響を受けることを抑えることができる。 In addition, according to the present embodiment, the adhesive layer 18 is provided on one main surface 15 a of the flexible base sheet 15, and the flexible base sheet 15 is attached to the object via the adhesive layer 18. It is configured as follows. According to this configuration, since the adhesive layer 18 is disposed between the coil antenna 11 and the object, the communication characteristics of the coil antenna 11 are affected by the object by the thickness of the adhesive layer 18. Can be suppressed.
　また、本実施の形態によれば、温度センサ１４が可撓性基材シート１５の一方の主面１５ａに設けられている。この構成によれば、温度センサ１４が可撓性基材シート１５よりも対象物側に配置されることになるので、対象物の温度測定の感度を向上させることができる。なお、本実施の形態によれば、無線通信回路１２及び制御回路１３を含む全ての表面実装部品が可撓性基材シート１５の一方の主面１５ａに設けられているので、各表面実装部品の実装が容易である。 Further, according to the present embodiment, the temperature sensor 14 is provided on the one main surface 15 a of the flexible base sheet 15. According to this configuration, since the temperature sensor 14 is disposed closer to the object side than the flexible base sheet 15, the temperature measurement sensitivity of the object can be improved. According to the present embodiment, since all the surface mount components including the wireless communication circuit 12 and the control circuit 13 are provided on the one main surface 15a of the flexible base sheet 15, each surface mount component Is easy to implement.
　また、本実施の形態によれば、温度センサ１４と無線通信回路１２とは互いに離れて配置され、温度センサ１４と無線通信回路１２との間に制御回路１３が配置されている。この構成によれば、比較的発熱性が高い無線通信回路１２を温度センサ１４から離すことができるので、無線通信回路１２から発生した熱が温度センサ１４の温度情報に影響を与えることを抑えることができる。 Further, according to the present embodiment, the temperature sensor 14 and the wireless communication circuit 12 are disposed apart from each other, and the control circuit 13 is disposed between the temperature sensor 14 and the wireless communication circuit 12. According to this configuration, since the wireless communication circuit 12 having a relatively high heat generation property can be separated from the temperature sensor 14, it is possible to suppress the heat generated from the wireless communication circuit 12 from affecting the temperature information of the temperature sensor 14. Can do.
　また、本実施の形態によれば、可撓性基材シート１５には、制御回路１３から見て無線通信回路１２よりも離れた領域Ｅ１及び制御回路１３から見て温度センサ１４よりも離れた領域Ｅ２に、複数の孔部１９が設けられている。この構成によれば、複数の孔部１９によって可撓性基材シート１５の放熱性、通気性等を向上させることができる。また、複数の孔部１９によって伸縮性を向上させることもできるので、可撓性基材シート１５を対象物の曲面等に取り付けることを容易にすることができる。 Further, according to the present embodiment, the flexible base sheet 15 is separated from the area E1 farther than the wireless communication circuit 12 when viewed from the control circuit 13 and from the temperature sensor 14 when viewed from the control circuit 13. A plurality of holes 19 are provided in the region E2. According to this structure, the heat dissipation of the flexible base material sheet 15, air permeability, etc. can be improved with the some hole part 19. FIG. In addition, since the stretchability can be improved by the plurality of holes 19, it is possible to easily attach the flexible base sheet 15 to the curved surface of the object.
　また、本実施の形態によれば、無線通信回路１２、制御回路１３、及び温度センサ１４を設けた領域Ｅ３には、孔部１９を設けないようにしている。この構成によれば、領域Ｅ３は、孔部１９を設けた領域Ｅ１，Ｅ２よりも強度が高くなるので、可撓性基材シート１５を対象物の曲面等に貼り付ける際、無線通信回路１２、制御回路１３、及び温度センサ１４に加わる曲げ応力を低減することができる。また、可撓性基材シート１５が変形することによって各表面実装部品を接続する配線が断線することを抑えることができる。 Further, according to the present embodiment, the hole 19 is not provided in the region E3 in which the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 are provided. According to this configuration, the region E3 has higher strength than the regions E1 and E2 in which the hole portions 19 are provided. Therefore, when the flexible base sheet 15 is attached to the curved surface of the object, the wireless communication circuit 12 The bending stress applied to the control circuit 13 and the temperature sensor 14 can be reduced. Moreover, it can suppress that the wiring which connects each surface mount component by the deformation | transformation of the flexible base material sheet 15 breaks.
　また、本実施の形態によれば、可撓性基材シート１５の長手方向Ｌの一端部の周辺領域である領域Ｅ１及び可撓性基材シート１５の長手方向Ｌの他端部の周辺領域である領域Ｅ２に、それぞれ孔部１９が設けられている。この構成によれば、可撓性基材シート１５の長手方向の両端部の伸縮性を向上させることができ、取扱い性を向上させることができる。 Moreover, according to this Embodiment, the area | region E1 which is the peripheral region of the one end part of the longitudinal direction L of the flexible base material sheet 15, and the peripheral region of the other end part of the flexible base material sheet 15 in the longitudinal direction L The holes 19 are respectively provided in the regions E <b> 2. According to this structure, the stretchability of the both ends of the longitudinal direction of the flexible base material sheet 15 can be improved, and handleability can be improved.
　すなわち、本実施の形態に係る無線通信デバイス１においては、可撓性基材１５の中央側の領域Ｅ３には孔部１９を設けないことで強度の低下を抑えて各表面実装部品をしっかりと保持するようにしている。一方、可撓性基材１５の両端部側の領域Ｅ１，Ｅ２には孔部１９を設けることで伸縮性を向上させて、人体又は物品への装着性が阻害されることを抑えるようにしている。 That is, in the wireless communication device 1 according to the present embodiment, by not providing the hole portion 19 in the central region E3 of the flexible base material 15, the reduction in strength is suppressed and each surface mount component is firmly attached. I try to keep it. On the other hand, by providing the holes 19 in the regions E1 and E2 on both end sides of the flexible base material 15, the stretchability is improved and the attachment to the human body or article is prevented from being hindered. Yes.
　また、本実施の形態によれば、無線通信回路１２及び温度センサ１４は、孔部形成領域である領域Ｅ１，Ｅ２と、孔部非形成領域である領域Ｅ３との境界近傍に配置されている。この構成によれば、無線通信回路１２と温度センサ１４とをより一層離すことができるので、無線通信回路１２から発生した熱が温度センサ１４の温度情報に影響を与えることをより一層抑えることができる。 Further, according to the present embodiment, the wireless communication circuit 12 and the temperature sensor 14 are arranged in the vicinity of the boundary between the regions E1 and E2 that are the hole forming regions and the region E3 that is the hole non-forming region. . According to this configuration, since the wireless communication circuit 12 and the temperature sensor 14 can be further separated, it is possible to further suppress the heat generated from the wireless communication circuit 12 from affecting the temperature information of the temperature sensor 14. it can.
　また、本実施の形態によれば、コイルアンテナ１１が、平面視において、無線通信回路１２、制御回路１３、及び温度センサ１４を囲むように配置された螺旋状のコイルパターンを有している。この構成によれば、可撓性基材シート１５の外周部と各表面実装部品１２～１４との間にコイルアンテナ１１が介在することになるので、可撓性基材シート１５の外周部から各表面実装部品１２～１４に向けて加わる衝撃を、コイルアンテナ１１により軽減することができる。 Further, according to the present embodiment, the coil antenna 11 has a spiral coil pattern arranged so as to surround the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14 in plan view. According to this configuration, since the coil antenna 11 is interposed between the outer peripheral portion of the flexible base sheet 15 and each of the surface mount components 12 to 14, the outer periphery of the flexible base sheet 15 The impact applied to each of the surface mount components 12 to 14 can be reduced by the coil antenna 11.
　また、本実施の形態によれば、コイルアンテナ１１が、可撓性基材シート１５の外周部に沿うように配置されている。この構成によれば、可撓性基材シート１５の面積を最大限に活用してコイルアンテナ１１の長さを長くすることができる。その結果、無線通信回路１２、制御回路１３、及び温度センサ１４を駆動するのに十分な電力を確保し易くすることができる。 Further, according to the present embodiment, the coil antenna 11 is arranged along the outer peripheral portion of the flexible base sheet 15. According to this configuration, the length of the coil antenna 11 can be increased by maximizing the area of the flexible base sheet 15. As a result, it is possible to easily secure sufficient power for driving the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14.
　なお、本発明は前記実施形態に限定されるものではなく、その他種々の態様で実施できる。例えば、前記では、孔部１９は、可撓性基材シート１５及び接着層１８を貫通するように設けられるものとしたが、本発明はこれに限定されない。例えば、孔部１９は、可撓性基材シート１５のみ貫通するように設けられてもよい。また、孔部１９は、可撓性基材シート１５を貫通しない凹部として設けられてもよい。孔部１９は、対象物に応じて求められる放熱性、通気性、可撓性、強度等を確保するように適宜設ければよい。 In addition, this invention is not limited to the said embodiment, It can implement in another various aspect. For example, in the above description, the hole 19 is provided so as to penetrate the flexible base sheet 15 and the adhesive layer 18, but the present invention is not limited to this. For example, the hole 19 may be provided so as to penetrate only the flexible base sheet 15. Further, the hole 19 may be provided as a recess that does not penetrate the flexible base sheet 15. The hole 19 may be provided as appropriate so as to ensure heat dissipation, air permeability, flexibility, strength, and the like required according to the object.
　また、前記では、図３に示すように、孔部１９の形状は円形としたが、本発明はこれに限定されない。例えば、孔部１９の形状は、楕円形であっても、矩形であっても、スリット状であってもよい。 In the above description, as shown in FIG. 3, the hole 19 has a circular shape, but the present invention is not limited to this. For example, the shape of the hole 19 may be an ellipse, a rectangle, or a slit.
　また、前記では、可撓性基材シート１５の中央領域である領域Ｅ３には、孔部１９を全く設けないものとしたが、本発明はこれに限定されない。放熱性、通気性等のために必要であれば、領域Ｅ３に孔部１９を設けてもよい。但し、この場合、領域Ｅ３の強度等を確保するため、領域Ｅ３の開口率は、領域Ｅ１，Ｅ２の開口率よりも低いことが好ましい。 In the above description, the hole E 19 is not provided at all in the region E3 which is the central region of the flexible base sheet 15, but the present invention is not limited to this. If necessary for heat dissipation, air permeability, etc., the hole 19 may be provided in the region E3. However, in this case, in order to ensure the strength and the like of the region E3, the aperture ratio of the region E3 is preferably lower than the aperture ratios of the regions E1 and E2.
　また、前記では、可撓性基材シート１５は、長手方向、短手方向を有する矩形状に形成されるものとしたが、本発明はこれに限定されない。例えば、可撓性基材シート１５は、図５に示すように、円形状に形成されてもよい。この場合、コイルアンテナ１１の長さを長くすることが容易になり、無線通信回路１２、制御回路１３、及び温度センサ１４を駆動するのに十分な電力を一層確保し易くすることができる。 In the above description, the flexible base sheet 15 is formed in a rectangular shape having a longitudinal direction and a short direction, but the present invention is not limited to this. For example, the flexible base sheet 15 may be formed in a circular shape as shown in FIG. In this case, it is easy to increase the length of the coil antenna 11, and it is possible to make it easier to secure enough power to drive the wireless communication circuit 12, the control circuit 13, and the temperature sensor 14.
　また、前記では、図４に示すように、温度センサ１４の露出面と接着層１８の露出面とが面一になるように図示したが、本発明はこれに限定されない。例えば、図６に示すように、可撓性基材シート１５の厚さ方向において、温度センサ１４が接着層１８の表面よりも可撓性基材シート１５から離れる側に突出するように設けられてもよい。この構成によれば、温度センサ１４と対象物との密着性を向上させて、対象物の温度の検知精度を向上させることができる。また、このとき、温度センサ１４よりも可撓性基材シート１５の外周側に孔部１９が設けられ、当該孔部１９の周辺の伸縮性が向上することで、対象物と接着層１８との間に温度センサ１４の突出による隙間が形成されることを抑えることができる。これにより、対象物に対する密着性や装着性を向上させることができる。 In the above description, as shown in FIG. 4, the exposed surface of the temperature sensor 14 and the exposed surface of the adhesive layer 18 are shown to be flush with each other, but the present invention is not limited to this. For example, as shown in FIG. 6, the temperature sensor 14 is provided so as to protrude from the surface of the adhesive layer 18 to the side away from the flexible base sheet 15 in the thickness direction of the flexible base sheet 15. May be. According to this configuration, it is possible to improve the adhesion between the temperature sensor 14 and the object and improve the temperature detection accuracy of the object. At this time, the hole 19 is provided on the outer peripheral side of the flexible base sheet 15 with respect to the temperature sensor 14, and the stretchability around the hole 19 is improved, so that the object and the adhesive layer 18 It is possible to suppress the formation of a gap due to the protrusion of the temperature sensor 14 between the two. Thereby, the adhesiveness and mounting | wearing property with respect to a target object can be improved.
　なお、温度センサ１４の外周面と接着層１８とは、互いに接触している必要はなく、それらの間に隙間が形成されていてもよい。また、接着層１８の厚さは均一である必要はなく、例えば、温度センサ１４の周囲に位置する接着層１８の部分が凹んでいてもよい。 Note that the outer peripheral surface of the temperature sensor 14 and the adhesive layer 18 do not need to be in contact with each other, and a gap may be formed between them. Further, the thickness of the adhesive layer 18 does not need to be uniform. For example, the portion of the adhesive layer 18 located around the temperature sensor 14 may be recessed.
　また、対象物が人である場合、温度センサ１４が突出していると、装着者に違和感を生じさせることがある。このため、温度センサ１４の周囲には、接着層１８に比べて熱伝導性が高いクッション層（非接着材）が部分的に設けることが好ましい。これにより、装着者の違和感を抑えることができる。また、クッション層を熱伝導性が高いものにすることによって、温度センサ１４の周囲のみを温度変化に対して鋭敏にすることができる。 Also, when the object is a person, if the temperature sensor 14 protrudes, the wearer may feel uncomfortable. For this reason, it is preferable that a cushion layer (non-adhesive material) having higher thermal conductivity than the adhesive layer 18 is partially provided around the temperature sensor 14. Thereby, a wearer's discomfort can be suppressed. Further, by making the cushion layer have high thermal conductivity, only the periphery of the temperature sensor 14 can be made sensitive to temperature changes.
　また、接着層１８は、コイルアンテナ１１を覆うように設けられることが好ましい。銅箔等で構成されるコイルアンテナ１１が設けられることにより強度が比較的高くなるので、接着層１８と対象物とをより確実に貼り付けることができる。なお、温度センサ１４と対象物との密着性や装着性を向上させるという観点においては、接着層１８は、温度センサ１４の周囲近傍に設けられることが好ましい。これにより、温度センサ１４が対象物に対して位置ずれすることを抑えて、温度センサ１４をしっかりと固定することができる。 The adhesive layer 18 is preferably provided so as to cover the coil antenna 11. Since the strength becomes relatively high by providing the coil antenna 11 made of copper foil or the like, the adhesive layer 18 and the object can be attached more reliably. Note that the adhesive layer 18 is preferably provided in the vicinity of the periphery of the temperature sensor 14 from the viewpoint of improving the adhesion and mounting properties between the temperature sensor 14 and the object. As a result, the temperature sensor 14 can be securely fixed while preventing the temperature sensor 14 from being displaced from the object.
　なお、可撓性基材シート１５の厚さ方向において、温度センサ１４は、可撓性基材シート１５の一方の主面に実装される表面実装部品の中で最も接着層１８の表面よりも可撓性基材シート１５から離れる側に突出していることが好ましい。この構成によれば、温度センサ１４と対象物との密着性を一層向上させて、対象物の温度の検知精度を一層向上させることができる。 In the thickness direction of the flexible base sheet 15, the temperature sensor 14 is more than the surface of the adhesive layer 18 among the surface-mounted components mounted on one main surface of the flexible base sheet 15. It is preferable to protrude to the side away from the flexible substrate sheet 15. According to this configuration, the adhesion between the temperature sensor 14 and the object can be further improved, and the temperature detection accuracy of the object can be further improved.
　また、図６に示すように、可撓性基材シート１５の厚さｔ１は、接着層１８の厚さｔ２よりも薄いことが好ましい。これにより、無線通信デバイス１の全体の厚みを抑えることができるとともに、可撓性基材シート１５の可撓性を向上させることができる。その結果、温度センサ１４と対象物との密着性を一層向上させて、対象物の温度の検知精度を一層向上させることができる。なお、可撓性基材シート１５の厚さｔ１は、例えば、２０～４０μｍである。接着層１８の厚さｔ２は、例えば、１００±１０μｍである。温度センサ１４の厚さｔ３は、例えば、５００μｍである。温度センサ１４は、その半分以上が接着層１８から突出していることが好ましい。当該突出量は、０．２μｍ以上であることが好ましく、０.４μｍ以上であることが更に好ましい。 Further, as shown in FIG. 6, the thickness t1 of the flexible base sheet 15 is preferably thinner than the thickness t2 of the adhesive layer 18. Thereby, while being able to suppress the thickness of the whole radio | wireless communication device 1, the flexibility of the flexible base material sheet 15 can be improved. As a result, the adhesion between the temperature sensor 14 and the object can be further improved, and the temperature detection accuracy of the object can be further improved. The thickness t1 of the flexible base sheet 15 is 20 to 40 μm, for example. The thickness t2 of the adhesive layer 18 is, for example, 100 ± 10 μm. The thickness t3 of the temperature sensor 14 is, for example, 500 μm. It is preferable that at least half of the temperature sensor 14 protrudes from the adhesive layer 18. The protrusion amount is preferably 0.2 μm or more, and more preferably 0.4 μm or more.
　また、前記では、無線通信デバイス１が接着層１８を備えるものとしたが、本発明はこれに限定されない。例えば、接着層１８は、対象物側にあらかじめ取り付けられていてもよく、無線通信デバイス１が備える必要はない。 In the above description, the wireless communication device 1 includes the adhesive layer 18, but the present invention is not limited to this. For example, the adhesive layer 18 may be attached to the object side in advance, and the wireless communication device 1 does not need to be provided.
　本発明は、添付図面を参照しながら好ましい実施の形態に関連して充分に記載されているが、この技術に熟練した人々にとっては種々の変形や修正は明白である。そのような変形や修正は、添付した請求の範囲による本発明の範囲から外れない限りにおいて、その中に含まれると理解されるべきである。 Although the present invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein, so long as they do not depart from the scope of the present invention according to the appended claims.
　本発明に係る温度センサ付き無線通信デバイスは、バッテリーを備える必要性を無くすとともに、対象物の温度情報を安定してモニタリングすることができるので、人体や物品などの対象物に取付可能な温度センサ付き無線通信デバイスとして有用である。 The wireless communication device with a temperature sensor according to the present invention eliminates the need for a battery and can stably monitor temperature information of an object, so that the temperature sensor can be attached to an object such as a human body or an article. It is useful as an attached wireless communication device.
　　１　　無線通信デバイス（温度センサ付き無線通信デバイス）
　　２　　外部機器
　１１　　コイルアンテナ
　１２　　無線通信回路
　１３　　制御回路
　１４　　温度センサ
　１５　　可撓性基材シート
　１６　　キャパシタ
　１７　　ブリッジ導体
　１８　　接着層
　１９　　孔部 1 Wireless communication device (wireless communication device with temperature sensor)
2 External equipment 11 Coil antenna 12 Wireless communication circuit 13 Control circuit 14 Temperature sensor 15 Flexible substrate sheet 16 Capacitor 17 Bridge conductor 18 Adhesive layer 19 Hole

Claims (10)

  1. 　コイルアンテナと、
    　前記コイルアンテナに接続され、当該コイルアンテナを介して外部機器と無線通信を行う無線通信回路と、
    　対象物の温度を検知する温度センサと、
    　前記無線通信回路及び前記温度センサに接続され、前記温度センサの駆動を制御する制御回路と、
    　前記コイルアンテナ、前記無線通信回路、前記制御回路、及び前記温度センサが実装される可撓性基材シートと、
    　を備え、
    　前記コイルアンテナが前記外部機器と磁界結合することによって生じた電力により、前記無線通信回路、前記制御回路、及び前記温度センサが駆動され、前記温度センサが検知した温度情報が前記コイルアンテナを介して前記外部機器に送信される、
    　温度センサ付き無線通信デバイス。     A coil antenna;
    A wireless communication circuit connected to the coil antenna and performing wireless communication with an external device via the coil antenna;
    A temperature sensor for detecting the temperature of the object;
    A control circuit which is connected to the wireless communication circuit and the temperature sensor and controls driving of the temperature sensor;
    A flexible base sheet on which the coil antenna, the wireless communication circuit, the control circuit, and the temperature sensor are mounted;
    With
    The wireless communication circuit, the control circuit, and the temperature sensor are driven by the electric power generated when the coil antenna is magnetically coupled to the external device, and temperature information detected by the temperature sensor is transmitted via the coil antenna. Transmitted to the external device,
    Wireless communication device with temperature sensor.
  2. 　前記可撓性基材シートの一方の主面には、接着層が設けられ、
    　前記可撓性基材シートは、前記接着層を介して前記対象物に取り付けられる、
    　請求項１に記載の温度センサ付き無線通信デバイス。     An adhesive layer is provided on one main surface of the flexible base sheet,
    The flexible base sheet is attached to the object via the adhesive layer.
    The wireless communication device with a temperature sensor according to claim 1.
  3. 　前記温度センサは、前記可撓性基材シートの前記一方の主面に設けられている、請求項２に記載の温度センサ付き無線通信デバイス。 The wireless sensor device with a temperature sensor according to claim 2, wherein the temperature sensor is provided on the one main surface of the flexible base sheet.
  4. 　前記温度センサと前記無線通信回路とは互いに離れて配置され、前記温度センサと前記無線通信回路との間に前記制御回路が配置されている、請求項１～３のいずれか１つに記載の温度センサ付き無線通信デバイス。 The temperature sensor and the wireless communication circuit are disposed away from each other, and the control circuit is disposed between the temperature sensor and the wireless communication circuit. Wireless communication device with temperature sensor.
  5. 　前記可撓性基材シートには、前記制御回路から見て前記無線通信回路よりも離れた領域及び前記制御回路から見て前記温度センサよりも離れた領域に、複数の孔部が設けられている、請求項１～４のいずれか１つに記載の温度センサ付き無線通信デバイス。 The flexible base sheet is provided with a plurality of holes in a region away from the wireless communication circuit as viewed from the control circuit and a region away from the temperature sensor as viewed from the control circuit. The wireless communication device with a temperature sensor according to any one of claims 1 to 4.
  6. 　前記可撓性基材シートは、平面視において長手方向及び短手方向を有し、前記長手方向の一端部の周辺領域及び前記長手方向の他端部の周辺領域に、それぞれ前記孔部が設けられている、請求項５に記載の温度センサ付き無線通信デバイス。 The flexible base sheet has a longitudinal direction and a lateral direction in a plan view, and the hole portions are provided in a peripheral region at one end portion in the longitudinal direction and a peripheral region at the other end portion in the longitudinal direction, respectively. The wireless communication device with a temperature sensor according to claim 5.
  7. 　前記無線通信回路及び前記温度センサは、前記孔部が形成された孔部形成領域と前記孔部が形成されていない孔部非形成領域との境界近傍に配置されている、請求項５又は６に記載の温度センサ付き無線通信デバイス。 The wireless communication circuit and the temperature sensor are arranged in the vicinity of a boundary between a hole forming region where the hole is formed and a hole non-forming region where the hole is not formed. A wireless communication device with a temperature sensor as described in 1.
  8. 　前記コイルアンテナは、平面視において、前記無線通信回路、前記制御回路、及び前記温度センサを囲むように配置された螺旋状のコイルパターンを有する、請求項１～７のいずれか１つに記載の温度センサ付き無線通信デバイス。 The coil antenna according to any one of claims 1 to 7, wherein the coil antenna has a spiral coil pattern disposed so as to surround the wireless communication circuit, the control circuit, and the temperature sensor in plan view. Wireless communication device with temperature sensor.
  9. 　前記コイルアンテナは、前記可撓性基材シートの外周部に沿うように配置されている、請求項８に記載の温度センサ付き無線通信デバイス。 The wireless communication device with a temperature sensor according to claim 8, wherein the coil antenna is disposed along an outer peripheral portion of the flexible base sheet.
  10. 　前記可撓性基材シートの一方の主面には、接着層が設けられ、
    　前記可撓性基材シートは、前記接着層を介して前記対象物に取り付けられ、
    　前記可撓性基材シートの厚さ方向において、前記温度センサが前記接着層の表面よりも前記可撓性基材シートから離れる側に突出するように設けられている、請求項１～９のいずれか１つに記載の温度センサ付き無線通信デバイス。     An adhesive layer is provided on one main surface of the flexible base sheet,
    The flexible base sheet is attached to the object via the adhesive layer,
    10. The temperature sensor according to claim 1, wherein, in the thickness direction of the flexible base sheet, the temperature sensor is provided so as to protrude from the surface of the adhesive layer to the side away from the flexible base sheet. A wireless communication device with a temperature sensor according to any one of the above.
PCT/JP2017/005447 2016-03-31 2017-02-15 Temperature sensor-attached wireless communication device WO2017169217A1 (en)

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JP2013527434A (en) * 2010-04-07 2013-06-27 アリザント ヘルスケア インク． Configuration for zero heat flux deep tissue temperature measurement device
JP2012007963A (en) * 2010-06-24 2012-01-12 Murata Mfg Co Ltd Wireless thermometer and wireless body temperature measurement system
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