KR101560342B1 - Powerless and Non-Directional Remote Controller Device having Surface Acoustic Wave Sensor - Google Patents

Powerless and Non-Directional Remote Controller Device having Surface Acoustic Wave Sensor Download PDF

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KR101560342B1
KR101560342B1 KR1020140026517A KR20140026517A KR101560342B1 KR 101560342 B1 KR101560342 B1 KR 101560342B1 KR 1020140026517 A KR1020140026517 A KR 1020140026517A KR 20140026517 A KR20140026517 A KR 20140026517A KR 101560342 B1 KR101560342 B1 KR 101560342B1
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radio frequency
acoustic wave
surface acoustic
response signal
sensor
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KR20150104780A (en
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이상우
한경준
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국방과학연구소
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/70—Arrangements in the main station, i.e. central controller
    • H04Q2209/75—Arrangements in the main station, i.e. central controller by polling or interrogating the sub-stations

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)

Abstract

본 발명의 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치는 RF(Radio Frequency) 질의신호에 대응하는 특정 시간지연을 갖는 RF(Radio Frequency) 응답신호로 송출하고, 버튼(500)에 의한 물리적인 힘의 인가시 RF(Radio Frequency) 응답신호를 변형하여 송출하는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)가 내장된 리모컨(600); RF(Radio Frequency)응답신호에서 시간지연 간격을 비교하여 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에 인가된 물리량 판별로 버튼(500)의 숫자를 구병하는 RF 송수신장치(100)로 구성됨으로써 건전지나 자체발전기와 같은 전원공급기가 필요 없고, 특히 오랜 기간 사용해도 기능 저하가 없는 특징을 갖는다.The non-powered omnidirectional remote control apparatus to which the surface acoustic wave sensor of the present invention is applied transmits an RF (Radio Frequency) response signal having a specific time delay corresponding to a radio frequency (RF) A remote control 600 having a built-in SAW strain sensor 300 for modifying and transmitting an RF (Radio Frequency) response signal upon application thereof; (100) configured to compare the time delay interval in an RF (Radio Frequency) response signal and to count the number of buttons (500) by physical quantity discrimination applied to a SAW strain sensor (300) This eliminates the need for a power supply such as a battery or a self-generator, and has no deterioration in function even when used for a long period of time.

Description

표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치{Powerless and Non-Directional Remote Controller Device having Surface Acoustic Wave Sensor}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-directional remote control device having a surface acoustic wave sensor,

본 발명은 리모컨에 관한 것으로, 특히 표면탄성파(SAW : Surface Acoustic Wave)센서가 적용된 무전원 무지향성 리모컨 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote controller, and more particularly, to a non-power source non-directional remote controller to which a surface acoustic wave (SAW) sensor is applied.

일반적으로 리모컨(Remote Controller)은 신호를 보내 텔레비전(TV)이나 오디오로 온오프(On/Off)하거나 채널 변경을 할 수 있는 송수신 시스템이다.In general, a remote controller is a transmitting / receiving system that can send signals to turn on / off the television (TV) or audio, or change the channel.

이러한 예로서, 발광다이오드(LED)를 이용한 리모컨, 자체발전기를 포함하는 리모컨, RFID(Radio Frequency Identification)를 이용한 리모컨등이 있다. Examples of the remote controller include a remote controller using a light emitting diode (LED), a remote controller including a self-generator, and a remote controller using an RFID (Radio Frequency Identification).

국내특허공개10-2007-0005966(2007년01월11일)Korean Patent Publication No. 10-2007-0005966 (January 11, 2007)

하지만, 발광다이오드(LED)를 이용한 리모컨은 텔레비전(TV)이나 오디오가 있는 방향으로 리모컨을 지향해야 하는 불편이 있고, 특히 주기적으로 건전지 교체가 이루어져야 하는 불편이 있다.However, there is an inconvenience that the remote controller using the light emitting diode (LED) has to aim the remote controller in the direction of the television (TV) or audio, and there is an inconvenience that the battery should be periodically replaced.

또한, 자체발전기를 포함하는 리모컨은 건전지 교체가 없는 편리함이 있지만 사용자가 물리적인 회전이나 진동을 주어야 동작하므로 사용상 불편이 있다.In addition, although the remote controller including the self-generator is convenient without battery replacement, it is inconvenient to use because the user must physically rotate or vibrate.

그리고, RFID(Radio Frequency Identification)를 이용한 리모컨은 원격신호를 생성하는 RFID와 함께 순간적인 전원을 공급하는 압전소자를 이용하나, 장기간 사용 시 PZT(Lead zirconate titanate)압전소자의 압전특성이 미약해짐으로써 전원공급 특성을 잃어버리는 불편이 있다.In addition, the remote controller using RFID (Radio Frequency Identification) uses a piezoelectric element that supplies instantaneous power with an RFID that generates a remote signal, but the piezoelectric characteristics of the lead zirconate titanate (PZT) The power supply characteristic is lost.

이에 상기와 같은 점을 감안한 본 발명은 RF 질의신호(RF Interrogation Signal)에 대응하는 특정 시간지연을 갖는 RF(Radio Frequency) 응답신호가 인가된 물리적인 힘으로 변형되어 송출되는 표면탄성파(SAW : Surface Acoustic Wave)센서가 적용됨으로써 건전지나 자체발전기와 같은 전원공급기가 필요 없고 오랜 기간 사용해도 기능 저하가 없는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치를 제공하는데 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a surface acoustic wave device having a SAW Acoustic Wave) sensor is used to provide a non-powered, non-directional remote control device with a surface acoustic wave sensor that does not require a power supply such as a battery or a self-generator and does not deteriorate even when used for a long period of time.

상기와 같은 목적을 달성하기 위한 본 발명의 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치는 RF(Radio Frequency) 질의신호를 송출하는 RF 질의장치와 RF(Radio Frequency) 응답신호를 수신하는 RF 수신장치로 이루어진 RF 송수신장치, 외부에서 물리적인 힘이 인가되는 표면탄성파 변형감지센서, 상기 표면탄성파 변형감지센서를 변형시켜주는 다수의 버튼이 구비된 리모컨이 포함되고; 상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency) 질의신호에 대응하는 특정 시간지연을 갖는 RF(Radio Frequency) 응답신호로 송출하고, 상기 물리적인 힘의 인가시 상기 RF(Radio Frequency) 응답신호를 변형하여 송출하며; 상기 RF 수신장치는 상기 RF(Radio Frequency)응답신호에서 시간지연 간격을 비교하여 상기 표면탄성파 변형감지센서에 물리량이 인가되었는지 판별하는 것을 특징으로 한다.In order to accomplish the above object, the present invention provides a non-powered, omnidirectional remote control apparatus to which a surface acoustic wave sensor is applied includes an RF inquiry device for transmitting an RF (Radio Frequency) query signal and an RF receiving device for receiving an RF A surface acoustic wave deformation detecting sensor to which a physical force is externally applied, and a remote controller having a plurality of buttons for changing the surface acoustic wave deformation detecting sensor; The surface acoustic wave deformation detecting sensor transmits an RF (Radio Frequency) response signal having a specific time delay corresponding to the RF (Radio Frequency) query signal, and outputs the RF (Radio Frequency) response signal when the physical force is applied Transformed and transmitted; The RF receiving apparatus compares a time delay interval in the RF response signal to determine whether a physical quantity is applied to the surface acoustic wave deformation detecting sensor.

상기 버튼은 상기 RF(Radio Frequency)응답신호를 변형하도록 외팔보로 상기 표면탄성파 변형감지센서에 인장력을 가한다.The button applies a tensile force to the SAW sensor with a cantilever to deform the RF (Radio Frequency) response signal.

상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency)질의신호 수신과 상기 RF(Radio Frequency)응답신호 송출을 하는 수동 안테나와, 상기 RF(Radio Frequency)질의신호를 표면탄성파로 변환해주는 IDT전극(Interdigital Transducer), 상기 표면탄성파를 특정 형태로 반사시킬 수 있는 반사기(Reflector)로 구성된다.The surface acoustic wave deformation detection sensor includes a passive antenna for receiving the RF (Radio Frequency) query signal and transmitting the RF (Radio Frequency) response signal, an IDT electrode (Interdigital) for converting the RF A transducer, and a reflector that reflects the surface acoustic wave in a specific form.

상기 IDT전극은 간격조절로 동작주파수를 변경하고, 간격 조절된 IDT전극을 갖는 표면탄성파 변형감지센서의 각각은 상기 리모컨에 구비된 다수의 버튼별 RF(Radio Frequency)응답신호로 송출되며, 상기 버튼별 RF(Radio Frequency)응답신호로 상기 RF 수신장치가 상기 다수의 버튼을 각각 구분한다.Each of the IDT electrodes changes the operating frequency by adjusting the interval, and each of the surface acoustic wave deformation detecting sensors having the IDT electrodes spaced apart is sent out as a plurality of RF (Radio Frequency) response signals for each button provided on the remote controller, And the RF receiving apparatus distinguishes the plurality of buttons by a separate RF (Radio Frequency) response signal.

상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency)질의신호 수신과 상기 RF(Radio Frequency)응답신호 송출을 하는 수동 안테나와, 상기 RF(Radio Frequency)질의신호를 표면탄성파로 변환해주는 IDT전극(Interdigital Transducer), 상기 표면탄성파를 특정 형태로 반사시킬 수 있는 반사기(Reflector), 상기 수동 안테나와 상기 IDT전극(Interdigital Transducer)사이를 분리시켜 상기 버튼 눌림시 만 상기 수동안테나를 연결하는 스위치로 구성된다.The surface acoustic wave deformation detection sensor includes a passive antenna for receiving the RF (Radio Frequency) query signal and transmitting the RF (Radio Frequency) response signal, an IDT electrode (Interdigital) for converting the RF A reflector for reflecting the SAW in a specific form, and a switch for separating the passive antenna and the IDT electrode from each other and connecting the passive antenna only when the button is pressed.

상기 반사기들의 간격 조절로 각각 다른 형태의 RF(Radio Frequency)응답신호가 생성되고, 상기 다른 형태의 RF(Radio Frequency)응답신호의 각각은 상기 리모컨에 구비된 다수의 버튼별 RF(Radio Frequency)응답신호로 송출되며, 상기 버튼별 RF(Radio Frequency)응답신호로 상기 RF 수신장치가 상기 다수의 버튼을 각각 구분한다.(RF) response signals of different types are generated by adjusting the spacing of the reflectors, and each of the other types of RF (Radio Frequency) response signals is converted into a plurality of RF Signal, and the RF receiving apparatus distinguishes the plurality of buttons from each other by a button-specific RF (Radio Frequency) response signal.

이러한 본 발명은 리모컨이 표면탄성파(SAW : Surface Acoustic Wave)센서의 원격측정기술로 작동됨으로써 건전지나 자체발전기와 같은 전원공급기가 없고, 오랜기간 사용해도 기능이 그대로 유지되는 효과가 있다.In the present invention, since the remote control is operated by a remote measurement technique of a surface acoustic wave (SAW) sensor, there is no power supply such as a battery or a self-generator, and the function is maintained even if used for a long period of time.

또한, 본 발명은 표면탄성파(SAW : Surface Acoustic Wave)센서가 소형인 특성을 이용해 컴팩트한 리모컨 디자인이 구현되고, 특히 저가로 리모컨 제작이 가능한 효과가 있다.In addition, the present invention realizes a compact remote control design using a small size of a surface acoustic wave (SAW) sensor, and is particularly effective in manufacturing a remote control at a low cost.

도 1은 본 발명에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성이고, 도 2 및 도 3은 본 발명의 제1실시예에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성 및 작동상태이며, 도 4 및 도 5는 본 발명의 제2실시예에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성 및 작동상태이다.2 and 3 are views showing the configuration and operation of the non-power source non-directional remote control device to which the surface acoustic wave sensor according to the first embodiment of the present invention is applied, and FIG. And FIGS. 4 and 5 show the configuration and operating state of the non-power source non-directional remote control apparatus to which the surface acoustic wave sensor according to the second embodiment of the present invention is applied.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

도 1은 본 발명에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성을 나타낸다.1 shows a configuration of a non-powered omnidirectional remote control apparatus to which a surface acoustic wave sensor according to the present invention is applied.

도시된 바와 같이, 무전원 무지향성 리모컨 장치는 RF 질의장치(RF(Radio Frequency) Interrogation Unit)(101)와 RF 수신장치(RF Receiving Unit)(102) 및 RF 안테나(103)로 이루어진 RF 송수신장치(100), 표면탄성파 변형감지센서(SAW Strain Sensor)(300), 숫자를 포함한 버튼(500)에 연계된 표면탄성파 변형감지센서(SAW Strain Sensor)(300)를 내장한 리모콘(600)으로 구성된다.As shown in the figure, the non-powered omnidirectional remote controller includes an RF transceiver (RF (Radio Frequency Interrogation Unit) 101, an RF receiver unit 102 and an RF antenna 103 100, a SAW strain sensor 300 and a SAW strain sensor 300 connected to the button 500 including a numeric keypad (not shown) .

상기 RF 질의장치(RF Interrogation Unit)(101)는 질의신호(Interrogation signal)를 송출한다.The RF interrogation unit 101 transmits an interrogation signal.

상기 RF 수신장치(RF Receiving Unit)(102)는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)가 송출하는 RF 응답신호(Response signal)를 수신하고, 시간지연 간격을 비교함으로써 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에 물리량이 인가되었는지를 판별한다. 그러므로, 상기 RF 응답신호에는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에서 감지된 물리량 정보가 포함된다.The RF receiving unit 102 receives a RF response signal transmitted from a SAW strain sensor 300 and compares time delay intervals to calculate a surface acoustic wave deformation It is determined whether a physical quantity is applied to the sensor (SAW strain sensor) 300. Therefore, the RF response signal includes the physical quantity information sensed by the SAW strain sensor 300.

상기 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 물리적인 인장과 압축을 감지하는 전극배치가 형성됨으로써 RF(Radio Frequency)대역의 특정주파수를 갖는 표면탄성파가 생성된다.The SAW strain sensor 300 generates a surface acoustic wave having a specific frequency in a radio frequency (RF) band by forming an electrode arrangement for sensing physical tension and compression.

일례로, 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에 기계적 변형이나 온도변화가 발생하면 표면탄성파의 진행속도가 변하고, 진행속도가 증감됨으로써 표면탄성파의 위상이나 주파수가 변경되며, 주파수 변경을 감지함으로써 기계적 변형이나 온도가 측정되는 방식이다.For example, when a mechanical strain or a temperature change occurs in a SAW strain sensor 300, the traveling velocity of the SAW changes and the traveling velocity increases or decreases, thereby changing the phase or frequency of the SAW, To detect mechanical deformation or temperature.

그러므로, 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 Quartz나 LiNbO3와 같은 유리기판 위에 전극패턴을 이용한 방식과 유사하다. 하지만, 본 실시예에 따른 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 압력을 정밀하게 측정할 필요 없이 단지 버튼의 눌림만 감지함으로써 기술적인 위험도가 낮고 저비용 제작이 가능하다.Therefore, the SAW strain sensor 300 is similar to a method using an electrode pattern on a glass substrate such as Quartz or LiNbO 3 . However, the SAW strain sensor 300 according to the present embodiment does not need to precisely measure the pressure, but only detects the depression of the button, thereby making it possible to manufacture the SAW strain sensor at a low technical cost and at low cost.

이를 위해, 상기 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 버튼 눌림을 검출하는 압전기판(301), RF 질의신호를 수신하고 응답신호를 송출하는 수동 안테나(302), RF신호를 표면탄성파로 변환해주는 IDT전극(Interdigital Transducer)(303), 진행하는 표면탄성파(304)를 특정 형태로 반사시킬 수 있는 반사기(Reflector)(305)를 포함한다.For this, the SAW strain sensor 300 includes a piezoelectric substrate 301 for detecting a button pressing, a passive antenna 302 for receiving an RF query signal and transmitting a response signal, An IDT electrode 303 for converting an elastic wave into an elastic wave, and a reflector 305 for reflecting the traveling surface acoustic wave 304 in a specific form.

상기 리모컨(600)은 일반적인 리모컨과 같은 기능을 한다. 특히 버튼(500)은 버튼(500)이 눌려지면 인장력을 받는 외팔보(501)타입으로 이루어진다(도 3참조). 그러므로, 리모컨(600)에는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)가 외팔보(501)에 부착됨으로써 버튼(500)의 눌림이 감지될 수 있고, 이를 통해 리모컨(600)에서는 무전원 원격측정이 가능하게 동작된다.The remote controller 600 functions as a general remote controller. In particular, the button 500 is of a cantilever type 501 receiving a tensile force when the button 500 is pressed (see FIG. 3). Therefore, the SAW strain sensor 300 is attached to the cantilever 501, so that the depression of the button 500 can be sensed on the remote controller 600, .

특히, 리모컨(600)은 여러개의 버튼(500)을 구별하도록 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 동작주파수를 다르게 설계하여 준다.In particular, the remote controller 600 may design the SAW strain sensor 300 to have a different operating frequency so as to distinguish the plurality of buttons 500 from each other.

일례로, 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 IDT전극(Interdigital Transducer)(303)의 간격을 조절하면 특정주파수가 변경되므로 각각의 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 다른 동작주파수에서 작동할 수 있다. 이를 위해, RF 송수신장치(100)의 RF 질의장치(RF Interrogation Unit)(101)는 다양한 주파수를 갖는 RF 질의신호를 상시 송출하고, RF 송수신장치(100)의 RF 수신장치(RF Receiving Unit)(102)는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 각각이 제공하는 RF 응답신호를 분석하여 버튼의 눌림이 인지되도록 한다.For example, when the interval of the IDT electrode (Interdigital Transducer) 303 of the SAW strain sensor 300 is adjusted, the SAW strain sensor 300 May operate at different operating frequencies. To this end, the RF interrogation unit 101 of the RF transceiver 100 periodically transmits an RF inquiry signal having various frequencies and transmits the RF interrogation signal to the RF receiving unit (RF Receiving Unit) of the RF transceiver 100 102 analyzes the RF response signal provided by each SAW strain sensor 300 so that the pressing of the button is recognized.

한편, 도 2 및 도 3은 본 발명의 제1실시예에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성 및 작동상태를 나타낸다.2 and 3 show the configuration and operating state of the non-power source non-directional remote control apparatus to which the surface acoustic wave sensor according to the first embodiment of the present invention is applied.

도시된 바와 같이, RF 질의장치(RF Interrogation Unit)(101)가 송출한 질의신호(Interrogation signal)가 리모컨(600)의 수동 안테나(302)에 수신되면, IDT전극(Interdigital Transducer)(303)은 특정주파수를 갖는 표면탄성파를 생성한다. 표면탄성파는 압전기판(301)의 표면을 진행하면서 반사기(Reflector)(305)들을 통해 특정시간지연을 갖는 형태로 반사된다. 반사된 표면탄성파는 다시 수동 안테나(302)를 통해 RF 응답신호로 변환되어 송출된다.As shown in the figure, when the interrogation signal transmitted from the RF interrogation unit 101 is received by the passive antenna 302 of the remote control 600, the IDT electrode (Interdigital Transducer) Thereby generating a surface acoustic wave having a specific frequency. The surface acoustic waves propagate through the surface of the piezoelectric substrate 301 and are reflected through the reflectors 305 in a form having a specific time delay. The reflected surface acoustic wave is again converted into an RF response signal through the passive antenna 302 and transmitted.

그러므로, 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에서는 질의신호(Interrogation signal)에 대한 RF 응답신호(Response signal)가 생성되고, RF 응답신호(Response signal)에는 감지된 물리량 정보가 포함된다.Therefore, in the SAW strain sensor 300, a RF response signal for the interrogation signal is generated, and the RF response signal includes the sensed physical quantity information .

그러면, RF 수신장치(RF Receiving Unit)(102)는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)가 송출한 RF 응답신호(Response signal)를 수신하고, 응답신호에서 시간지연 간격을 비교함으로써 표면탄성파 변형감지센서에 물리량이 인가되었는지를 판별한다.Then, the RF receiving unit 102 receives the RF response signal transmitted by the SAW strain sensor 300, compares the time delay interval in the response signal, It is determined whether a physical quantity is applied to the surface acoustic wave deformation detection sensor.

이러한 질의신호(Interrogation signal) 및 RF 응답신호(Response signal)가 송수신되는 상태에서 리모컨(600)의 버튼(500)을 물리적인 힘(400)으로 누르면, 버튼(500)에 연계된 외팔보(501)는 물리적인 힘(400)에 의한 인장력을 받게 됨으로써 표면탄성파 변형감지센서(SAW Strain Sensor)(300)는 외팔보(501)에 의한 물리적인 힘(400)이 인가된다.When the button 500 of the remote control 600 is pressed by the physical force 400 while the interrogation signal and the RF response signal are transmitted and received, the cantilever 501, which is linked to the button 500, The SAW strain sensor 300 receives the physical force 400 by the cantilever 501 because the tensile force is applied to the SAW strain sensor 300 by the physical force 400.

그러면, 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 압전기판(301)이 변형(Strain)을 일으킴으로써 표면탄성파의 진행속도가 변경되고, 이러한 진행속도 변경으로 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 RF 응답신호는 감지된 물리량 정보를 포함한 형태로 변화된다.Then, the piezoelectric substrate 301 of the SAW strain sensor 300 undergoes strain to change the traveling speed of the surface acoustic wave, and the surface acoustic wave deformation detecting sensor SAW The RF response signal of the strain sensor 300 is changed to include the sensed physical quantity information.

이로 인해, RF 수신장치(RF Receiving Unit)(102)는 리모컨(600)의 버튼(500)이 눌려지는 것과 같은 물리적인 힘(400)이 인가되었을 때와 인가되지 않았을 때의 RF 응답신호 형태를 비교하여 버튼(500)의 눌림을 인지한다. Accordingly, the RF receiving unit 102 receives the RF response signal when the physical force 400 is applied, such as when the button 500 of the remote control 600 is pressed, and when the physical force 400 is not applied. The button 500 is pressed.

그 결과로, RF 송수신장치(100)가 탑재된 TV나 오디오에서는 리모컨(600)에서 조작된 버튼(500)에 따른 채널 변경등이 수행된다.As a result, in the TV or audio on which the RF transceiver 100 is mounted, the channel change according to the button 500 operated by the remote controller 600 is performed.

한편, 도 4 및 도 5는 본 발명의 제2실시예에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치의 구성 및 작동상태를 나타낸다.4 and 5 illustrate the configuration and operating state of the non-power source non-directional remote control apparatus to which the surface acoustic wave sensor according to the second embodiment of the present invention is applied.

도시된 바와 같이, 무전원 무지향성 리모컨 장치는 RF 질의장치(RF Interrogation Unit)(101)와 RF 수신장치(RF Receiving Unit)(102) 및 RF 안테나(103)로 이루어진 RF 송수신장치(100), 표면탄성파 변형감지센서(SAW Strain Sensor)(300), 숫자를 포함한 버튼(500)에 연계된 표면탄성파 변형감지센서(SAW Strain Sensor)(300)를 내장한 리모콘(600)으로 구성된다.2, the non-powered omni-directional remote controller includes an RF transceiver 100 including an RF interrogation unit 101, an RF receiver unit 102 and an RF antenna 103, A SAW strain sensor 300 and a remote control 600 incorporating a SAW strain sensor 300 connected to a button 500 including a number.

그러므로, 제2실시예의 무전원 무지향성 리모컨 장치도 도 2 및 도 3의 제1실시예의 무전원 무지향성 리모컨 장치와 동일한 구성 및 작동이 이루어진다.Therefore, the non-power-source non-directional remote control device of the second embodiment also has the same configuration and operation as the non-power source non-directional remote control device of the first embodiment of Figs.

다만, 제2실시예의 무전원 무지향성 리모컨 장치에는 기계적 스위치(306)가 더 포함되고, 상기 기계적 스위치(306)로 인해 수동 안테나(302)와 IDT전극(Interdigital Transducer)(303)의 사이가 분리된다는 차이가 있다. 이로 인해, 리모컨(600)의 버튼(500)을 누를 때 기계적 스위치(306)가 수동 안테나(302)를 연결하여 준다.However, the non-power source non-directional remote control device of the second embodiment further includes a mechanical switch 306, and the mechanical switch 306 disconnects the passive antenna 302 from the IDT electrode (Interdigital Transducer) 303 There is a difference. The mechanical switch 306 connects the passive antenna 302 when the button 500 of the remote control 600 is pressed.

또한, 제2실시예의 무전원 무지향성 리모컨 장치에는 반사기(Reflector)(305)들의 간격 조절로 응답신호 형태를 변화시킨 표면탄성파 변형감지센서(SAW Strain Sensor)(300)의 각각이 리모컨(600)의 버튼(500)에 연계되도록 부착되고, RF 수신장치(RF Receiving Unit)(102)가 표면탄성파 변형감지센서(SAW Strain Sensor)(300)로부터 송출된 RF 응답신호를 분석하여 어떤 버튼이 눌려졌는지 인지할 수 있는 차이도 있다.In the non-power source non-directional remote control device of the second embodiment, each of the SAW strain sensor 300, which changes the shape of the response signal by adjusting the spacing of the reflectors 305, And the RF receiving unit 102 analyzes the RF response signal transmitted from the SAW strain sensor 300 to determine which button has been pressed There is also a difference.

그러므로, 제2실시예의 무전원 무지향성 리모컨 장치에서는 평상시에 RF 수신장치(RF Receiving Unit)(102)에 어떠한 신호(203)도 입력되지 않지만, 리모컨(600)의 버튼(500)이 눌려지면 해당 버튼에 상응하는 RF 응답신호(204)가 수신됨으로써 버튼 눌림이 감지될 수 있다.Therefore, in the non-power source non-directional remote control apparatus of the second embodiment, no signal 203 is normally input to the RF receiving unit 102. However, when the button 500 of the remote control 600 is pressed, The button response may be sensed by receiving a corresponding RF response signal 204. [

따라서, RF 송수신장치(100)가 여러 주파수를 갖는 RF 질의신호를 송수신해야하는 제1실시예의 무전원 무지향성 리모컨 장치와 달리, 제2실시예의 무전원 무지향성 리모컨 장치에서는 단일 RF 질의신호만으로도 여러개의 리모컨 버튼을 구별할 수 있다.Therefore, unlike the non-power-source non-directional remote control device of the first embodiment in which the RF transmission / reception device 100 needs to transmit and receive an RF query signal having a plurality of frequencies, in the non-power source non-directional remote control device of the second embodiment, Can be distinguished.

전술된 바와 같이, 본 실시예에 따른 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치는 RF(Radio Frequency) 질의신호에 대응하는 특정 시간지연을 갖는 RF(Radio Frequency) 응답신호로 송출하고, 버튼(500)에 의한 물리적인 힘의 인가시 RF(Radio Frequency) 응답신호를 변형하여 송출하는 표면탄성파 변형감지센서(SAW Strain Sensor)(300)가 내장된 리모컨(600); RF(Radio Frequency)응답신호에서 시간지연 간격을 비교하여 표면탄성파 변형감지센서(SAW Strain Sensor)(300)에 인가된 물리량 판별로 버튼(500)의 숫자를 구병하는 RF 송수신장치(100)로 구성됨으로써 건전지나 자체발전기와 같은 전원공급기가 필요 없고, 특히 오랜 기간 사용해도 기능 저하가 없게 된다. As described above, the non-powered omnidirectional remote control apparatus to which the surface acoustic wave sensor according to the present embodiment is applied transmits an RF (Radio Frequency) response signal having a specific time delay corresponding to a radio frequency (RF) A remote control 600 having a SAW strain sensor 300 for modifying an RF (Radio Frequency) response signal when a physical force is applied by the SAW sensor 300; (100) configured to compare the time delay interval in an RF (Radio Frequency) response signal and to count the number of buttons (500) by physical quantity discrimination applied to a SAW strain sensor (300) This eliminates the need for a power supply such as a battery or a self-generator, and in particular, it does not deteriorate even after a long period of use.

100 : RF 송수신 장치 101 : RF 질의장치(RF Interrogation Unit)
102 : RF 수신장치(RF Receiving Unit)
103 : RF 안테나 200 : RF 질의신호(RF Interrogation Signal)
201 : 제1 RF 응답신호(RF Response Signal)
202 : 제2 RF 응답신호 203 : 제3 RF 응답신호
204 : 제4 RF 응답신호
300 : 표면탄성파 변형감지센서(SAW Strain Sensor)
301 : 압전기판 302 : 수동 안테나
303 : IDT 전극(Interdigital Transducer)
304 : 표면탄성파(SAW : Surface Acoustic Wave)
305 : 반사기(Reflector) 306 : 스위치
500 : 버튼 501 : 외팔보
600 : 리모컨100: RF transceiver 101: RF interrogation unit
102: RF receiving unit (RF receiving unit)
103: RF antenna 200: RF interrogation signal
201: first RF response signal (RF response signal)
202: second RF response signal 203: third RF response signal
204: fourth RF response signal
300: Surface acoustic wave strain sensor (SAW strain sensor)
301: piezoelectric substrate 302: passive antenna
303: IDT electrode (Interdigital Transducer)
304: Surface Acoustic Wave (SAW)
305: Reflector 306: Switch
500: Button 501: Cantilever
600: Remote control

Claims (10)

RF(Radio Frequency) 질의신호를 송출하는 RF 질의장치와 RF(Radio Frequency) 응답신호를 수신하는 RF 수신장치로 이루어진 RF 송수신장치, 외부에서 물리적인 힘이 인가되는 표면탄성파 변형감지센서, 상기 표면탄성파 변형감지센서를 변형시켜주는 다수의 버튼이 구비된 리모컨이 포함되고;
상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency) 질의신호에 대응하는 특정 시간지연을 갖는 RF(Radio Frequency) 응답신호로 송출하고, 상기 물리적인 힘의 인가시 상기 RF(Radio Frequency) 응답신호를 변형하여 송출하며;
상기 RF 수신장치는 상기 RF(Radio Frequency)응답신호에서 시간지연 간격을 비교하여 상기 표면탄성파 변형감지센서에 물리량이 인가되었는지 판별하고;
상기 버튼은 상기 RF(Radio Frequency)응답신호를 변형하도록 외팔보로 상기 표면탄성파 변형감지센서에 인장력을 가하는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
An RF transmitting / receiving device comprising an RF inquiry device for transmitting an RF (Radio Frequency) query signal and an RF receiving device for receiving an RF (Radio Frequency) response signal, a surface acoustic wave deformation detection sensor to which a physical force is externally applied, And a remote controller provided with a plurality of buttons for changing the deformation detecting sensor;
The surface acoustic wave deformation detecting sensor transmits an RF (Radio Frequency) response signal having a specific time delay corresponding to the RF (Radio Frequency) query signal, and outputs the RF (Radio Frequency) response signal when the physical force is applied Transformed and transmitted;
The RF receiving apparatus compares a time delay interval in the RF response signal to determine whether a physical quantity is applied to the surface acoustic wave deformation detecting sensor.
Wherein the button applies a tensile force to the surface acoustic wave deformation detecting sensor with a cantilever so as to deform the RF (Radio Frequency) response signal.
청구항 1에 있어서, 상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency)질의신호 수신과 상기 RF(Radio Frequency)응답신호 송출을 하는 수동 안테나와, 상기 RF(Radio Frequency)질의신호를 표면탄성파로 변환해주는 IDT전극(Interdigital Transducer), 상기 표면탄성파를 특정 형태로 반사시킬 수 있는 반사기(Reflector)로 구성된 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.The surface acoustic wave deformation sensor of claim 1, wherein the surface acoustic wave deformation detection sensor comprises: a passive antenna for receiving the RF (Radio Frequency) query signal and transmitting the RF (Radio Frequency) response signal; Wherein the surface acoustic wave sensor comprises an IDT electrode (Interdigital Transducer), and a reflector capable of reflecting the surface acoustic wave in a specific form. 청구항 2에 있어서, 상기 IDT전극은 간격조절로 동작주파수를 변경하고, 간격 조절된 IDT전극을 갖는 표면탄성파 변형감지센서의 각각은 상기 리모컨에 구비된 다수의 버튼별 RF(Radio Frequency)응답신호로 송출되는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
[2] The method according to claim 2, wherein the IDT electrode changes the operating frequency by adjusting the interval, and each of the surface acoustic wave deformation detecting sensors having the IDT electrodes with a gap is provided with a plurality of RF (Radio Frequency) Wherein the surface acoustic wave sensor is applied to the surface acoustic wave sensor.
청구항 3에 있어서, 상기 버튼별 RF(Radio Frequency)응답신호로 상기 RF 수신장치가 상기 다수의 버튼을 각각 구분하는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
[4] The remote controller of claim 3, wherein the RF receiving device distinguishes the plurality of buttons from each other by a button-specific RF (Radio Frequency) response signal.
청구항 1에 있어서, 상기 표면탄성파 변형감지센서는 상기 RF(Radio Frequency)질의신호 수신과 상기 RF(Radio Frequency)응답신호 송출을 하는 수동 안테나와, 상기 RF(Radio Frequency)질의신호를 표면탄성파로 변환해주는 IDT전극(Interdigital Transducer), 상기 표면탄성파를 특정 형태로 반사시킬 수 있는 반사기(Reflector), 상기 수동 안테나와 상기 IDT전극(Interdigital Transducer)사이를 분리시켜 상기 버튼 눌림시 만 상기 수동안테나를 연결하는 스위치로 구성된 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
The surface acoustic wave deformation sensor of claim 1, wherein the surface acoustic wave deformation detection sensor comprises: a passive antenna for receiving the RF (Radio Frequency) query signal and transmitting the RF (Radio Frequency) response signal; A reflector for reflecting the surface acoustic wave in a specific form, and a passive antenna for separating the passive antenna and the IDT electrode from the interdigital transducer and connecting the passive antenna only when the button is pressed Wherein the remote control unit comprises a switch.
청구항 5에 있어서, 상기 반사기들의 간격 조절로 각각 다른 형태의 RF(Radio Frequency)응답신호가 생성되고, 상기 다른 형태의 RF(Radio Frequency)응답신호의 각각은 상기 리모컨에 구비된 다수의 버튼별 RF(Radio Frequency)응답신호로 송출되는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
[7] The method of claim 5, wherein different types of RF (Radio Frequency) response signals are generated by adjusting the spacing of the reflectors, and each of the different types of RF (Radio Frequency) (RF) response signal of the non-directional wireless remote controller.
청구항 6에 있어서, 상기 버튼별 RF(Radio Frequency)응답신호로 상기 RF 수신장치가 상기 다수의 버튼을 각각 구분하는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
7. The remote control apparatus as claimed in claim 6, wherein the RF receiving device distinguishes the plurality of buttons from each other by a button-specific RF (Radio Frequency) response signal.
청구항 5에 있어서, 상기 스위치는 기계식인 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
The non-electric omni-directional remote control apparatus according to claim 5, wherein the switch is a mechanical type.
청구항 1에 있어서, 상기 RF(Radio Frequency) 질의신호는 상시 송출하는 것을 특징으로 하는 표면탄성파 센서가 적용된 무전원 무지향성 리모컨 장치.
[3] The remote control apparatus of claim 1, wherein the RF signal is transmitted at all times.
삭제delete
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KR102138470B1 (en) 2019-07-14 2020-07-27 이광희 Energy harvesting remote control device

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US6144288A (en) 1997-03-28 2000-11-07 Eaton Corporation Remote wireless switch sensing circuit using RF transceiver in combination with a SAW chirp processor
JP2004328056A (en) * 2003-04-21 2004-11-18 Mitsubishi Materials Corp Wireless remote controller and wireless remote control system
KR100693222B1 (en) * 2006-04-28 2007-03-12 주식회사 엠디티 Saw transponder for sensing pressure

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US6144288A (en) 1997-03-28 2000-11-07 Eaton Corporation Remote wireless switch sensing circuit using RF transceiver in combination with a SAW chirp processor
JP2004328056A (en) * 2003-04-21 2004-11-18 Mitsubishi Materials Corp Wireless remote controller and wireless remote control system
KR100693222B1 (en) * 2006-04-28 2007-03-12 주식회사 엠디티 Saw transponder for sensing pressure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102138470B1 (en) 2019-07-14 2020-07-27 이광희 Energy harvesting remote control device

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