JP2014128652A - Price display device of electronic shelf label system - Google Patents

Price display device of electronic shelf label system Download PDF

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JP2014128652A
JP2014128652A JP2013258280A JP2013258280A JP2014128652A JP 2014128652 A JP2014128652 A JP 2014128652A JP 2013258280 A JP2013258280 A JP 2013258280A JP 2013258280 A JP2013258280 A JP 2013258280A JP 2014128652 A JP2014128652 A JP 2014128652A
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signal
display device
price display
shelf label
electronic shelf
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Su Jeong Kim
ジョン キム、ス
Han Jin Cho
ジン チョー、ハン
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Samsung Electro Mechanics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0702—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
    • G06K19/0704—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery the battery being rechargeable, e.g. solar batteries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
    • G06K19/0708—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation the source being electromagnetic or magnetic
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G06K19/0707—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation
    • G06K19/0711—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation the source being mechanical or acoustical
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/18—Casings, frames or enclosures for labels
    • G09F3/20—Casings, frames or enclosures for labels for adjustable, removable, or interchangeable labels
    • G09F3/208—Electronic labels, Labels integrating electronic displays

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  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Near-Field Transmission Systems (AREA)
  • Display Racks (AREA)
  • Cash Registers Or Receiving Machines (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a price display device that can operate by receiving signal input from external environment (stress, temperature, light and RF signals) and converting it to electric energy.SOLUTION: This invention relates to a price display device. Proposed is a price display device of an electronic shelf label system that includes a signal conversion unit 100 that receives input of an outside signal and converts it to an electric signal for provision, and an energy storage unit 300 that receives provision of the electric signal and stores energy for power supply. A proposed price display device of an electronic shelf label system further includes a signal rectification unit 200 that is linked to the signal conversion unit and rectifies the electric signal to provide it to the energy storage unit.

Description

本発明は、商品を陳列する場所に適用されることができる電子棚札（ＥＳＬ、Ｅｌｅｃｔｒｏｎｉｃ Ｓｈｅｌｆ Ｌａｂｅｌ）システムの価格表示装置に関する。   The present invention relates to a price display device of an electronic shelf label (ESL) system that can be applied to a place where goods are displayed.

一般に、電子棚札（ＥＳＬ、Ｅｌｅｃｔｒｏｎｉｃ Ｓｈｅｌｆ Ｌａｂｅｌ）システムとは、商品が陳列される場所に設置され、商品情報を自動化するシステムのことである。このような電子棚札システムでは、数千個のタグ（ＴＡＧ、価格表示端末機）が無線ネットワークを構成して中央集中型中継器（ＧＷ、Ｇａｔｅｗａｙ）と無線通信を行う。   In general, an electronic shelf label (ESL) system is a system that is installed at a place where merchandise is displayed and automates merchandise information. In such an electronic shelf label system, thousands of tags (TAG, price display terminal) constitute a wireless network and perform wireless communication with a centralized repeater (GW, Gateway).

上記価格表示装置はバッテリ（Ｂａｔｔｅｒｙ）で運用されるため、低電力方式が適用されるが、一般的に１次バッテリで運用される上記価格表示装置の寿命は制限される。   Since the price display device is operated by a battery (Battery), a low power system is applied. However, the lifetime of the price display device generally operated by a primary battery is limited.

従来の電子棚札システムは、上記のような価格表示装置の構成によって永久的に用いることが不可能であり、限定されたシステム寿命を持っている。即ち、最大寿命は５年程度とみなすことができ、バッテリ容量を増やす場合には価格が上昇するという問題がある。   The conventional electronic shelf label system cannot be used permanently due to the configuration of the price display device as described above, and has a limited system life. That is, the maximum life can be regarded as about 5 years, and there is a problem that the price increases when the battery capacity is increased.

下記先行技術文献である特許文献１には、バッテリが用いられるＲＦＩＤタグのバッテリ使用寿命を延長するためのウェイクアップ（ＷＡＫＥ−ＵＰ）制御回路及びその制御方法について開示されているだけで、外部環境から信号の入力を受けて電気信号に変換することでエネルギーの提供を受ける価格表示装置については全く開示されていない。   Patent Document 1 which is the following prior art document only discloses a wake-up (WAKE-UP) control circuit and a control method thereof for extending the battery service life of an RFID tag using a battery. There is no disclosure of a price display device that receives energy input by receiving an input of a signal and converting it into an electrical signal.

韓国公開特許第２０１１−００９２３７５号公報Korean Published Patent No. 2011-0092375

本発明は、上述した課題を解決するためのもので、外部環境（圧力、温度、光及びＲＦ信号）から信号の入力を受けて電気エネルギーに変換することで動作することができる価格表示装置を提案する。   The present invention is for solving the above-described problems, and provides a price display device that can operate by receiving signal input from an external environment (pressure, temperature, light, and RF signal) and converting it into electrical energy. suggest.

本発明の第１技術的な側面によると、外部信号の入力を受けて電気信号に変換して提供する信号変換部と、上記電気信号の提供を受け、電源を供給するためのエネルギーを貯蔵するエネルギー貯蔵部と、を含む電子棚札システムの価格表示装置を提案する。   According to the first technical aspect of the present invention, a signal conversion unit that receives an external signal and converts it into an electrical signal and provides the electrical signal and stores energy for supplying power. An electronic shelf label system price display device including an energy storage unit is proposed.

また、上記信号変換部と連結され、上記電気信号を整流して上記エネルギー貯蔵部を提供する信号整流部をさらに含む電子棚札システムの価格表示装置を提案する。   In addition, a price display device for an electronic shelf label system, further including a signal rectifier connected to the signal converter and rectifying the electrical signal to provide the energy storage unit, is proposed.

また、上記外部信号は、圧力信号、温度信号、光信号及びＲＦ信号のうち一つである電子棚札システムの価格表示装置を提案する。   Also, a price display device for an electronic shelf label system is proposed in which the external signal is one of a pressure signal, a temperature signal, an optical signal, and an RF signal.

また、上記外部信号が圧力信号である場合、上記信号変換部は、上記圧力信号の受信を受けて電気信号を生成する圧電モジュールである電子棚札システムの価格表示装置を提案する。   In addition, when the external signal is a pressure signal, the signal conversion unit proposes a price display device for an electronic shelf label system that is a piezoelectric module that receives the pressure signal and generates an electrical signal.

また、上記外部信号が温度信号である場合、上記信号変換部は、上記温度信号の受信を受けて電気信号を生成する熱電モジュールである電子棚札システムの価格表示装置を提案する。   In addition, when the external signal is a temperature signal, the signal conversion unit proposes a price display device for an electronic shelf label system that is a thermoelectric module that receives the temperature signal and generates an electrical signal.

また、上記外部信号の光信号である場合、上記信号変換部は、上記光信号の受信を受けて電気信号を生成する光電モジュールである電子棚札システムの価格表示装置を提案する。   Further, in the case of the optical signal of the external signal, the signal conversion unit proposes a price display device for an electronic shelf label system which is a photoelectric module that receives the optical signal and generates an electrical signal.

また、上記外部信号がＲＦ信号である場合、上記信号変換部は、上記ＲＦ信号の受信を受けて電気信号を生成する電磁波モジュールである電子棚札システムの価格表示装置を提案する。   In addition, when the external signal is an RF signal, the signal conversion unit proposes a price display device for an electronic shelf label system that is an electromagnetic wave module that receives the RF signal and generates an electrical signal.

本発明によると、特別な電源装置なしで価格表示装置の電気エネルギーを充填することができ、上記電気エネルギーを自己供給することで価格表示装置を半永久的に用いることができる。これにより、低電力電子棚札システムの制約点であるバッテリ問題を改善させることができる。   According to the present invention, the electric energy of the price display device can be charged without a special power supply device, and the price display device can be used semi-permanently by self-supplying the electric energy. Thereby, the battery problem which is a restriction point of the low power electronic shelf label system can be improved.

本発明の一実施形態による価格表示装置のブロック図である。It is a block diagram of the price display apparatus by one Embodiment of this invention. 図１の価格表示装置における外部信号による信号変換部の一実施例をブロック図で示したものである。FIG. 2 is a block diagram illustrating an example of a signal conversion unit using an external signal in the price display device of FIG. 1. 図２の価格表示装置における外部信号の入力時間による電圧変化をグラフで示したものである。FIG. 3 is a graph showing a change in voltage depending on an input time of an external signal in the price display device of FIG. 2. 本発明の一実施形態による価格表示装置のエネルギー充填量による電圧変化をグラフで示したものである。6 is a graph showing a voltage change according to an energy filling amount of a price display device according to an embodiment of the present invention.

以下では、添付の図面を参照し、本発明の好ましい実施形態について説明する。しかし、本発明の実施形態は様々な他の形態に変形されることができ、本発明の範囲は以下で説明する実施形態に限定されない。また、本発明の実施形態は、当該技術分野で平均的な知識を有する者に本発明をより完全に説明するために提供されるものである。したがって、図面における要素の形状及び大きさなどはより明確な説明のために誇張されることがある。   Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for a clearer description.

なお、明細書の全体において、ある部分が他の部分と「連結」されているとする場合、これは「直接的に連結」されている場合だけでなく、その間に他の構成を介して「間接的に連結」されている場合も含む。   In addition, in the whole specification, when a certain part is “connected” to another part, this is not only “directly connected” but also “ This includes cases where it is indirectly linked.

さらに、ある構成要素を「含む」とすることは、特別に反対される記載がない限り、他の構成要素を除くのではなく、他の構成要素をさらに含むことができるということを意味する。   Furthermore, “including” a component means that the component can further include other components than the other components, unless specifically stated to the contrary.

図１は本発明の一実施形態による価格表示装置のブロック図である。   FIG. 1 is a block diagram of a price display device according to an embodiment of the present invention.

図１を参照すると、本発明による価格表示装置は、信号変換部１００と、信号整流部２００と、エネルギー貯蔵部３００と、を含むことができる。   Referring to FIG. 1, the price display device according to the present invention may include a signal conversion unit 100, a signal rectification unit 200, and an energy storage unit 300.

上記信号変換部１００は、外部から入力された信号を電気信号に変換して上記信号整流部２００に提供することができる。上記信号整流部２００は、入力された上記電気信号を整流することができる。また、整流された電気信号は、価格表示装置を動作させるためのもので、上記エネルギー貯蔵部３００に貯蔵されることができる。   The signal converter 100 can convert an externally input signal into an electric signal and provide the signal to the signal rectifier 200. The signal rectifier 200 can rectify the input electrical signal. Further, the rectified electric signal is for operating the price display device and can be stored in the energy storage unit 300.

即ち、価格表示装置の外部環境エネルギーを自己収集することで、電気エネルギーに変換及び整流する過程を経て上記エネルギー貯蔵部３００に貯蔵させることができる。貯蔵された電気エネルギーは、価格表示装置の動作に用いられ、上記外部信号の入力を受けて電気信号に変換することでエネルギーをリアルタイムで貯蔵することができる。これにより、半永久的な電子棚札システムを具現することができる。   That is, by self-collecting the external environmental energy of the price display device, it can be stored in the energy storage unit 300 through a process of conversion and rectification into electric energy. The stored electrical energy is used for the operation of the price display device, and the energy can be stored in real time by receiving the external signal and converting it into an electrical signal. Thereby, a semi-permanent electronic shelf label system can be implemented.

図２は図１の価格表示装置における外部信号による信号変換部の一実施例をブロック図で示したものであり、図３は図２の価格表示装置における外部信号の入力時間による電圧変化をグラフで示したものであり、図４は本発明の一実施形態による価格表示装置のエネルギー充填量による電圧変化をグラフで示したものである。   FIG. 2 is a block diagram showing an embodiment of a signal conversion unit using an external signal in the price display apparatus of FIG. 1, and FIG. 3 is a graph showing a voltage change according to an input time of the external signal in the price display apparatus of FIG. FIG. 4 is a graph showing a change in voltage according to the energy filling amount of the price display device according to the embodiment of the present invention.

図２を参照すると、外部から入力される信号は、圧力信号、温度信号、光信号及びＲＦ信号のうち一つであることができる。   Referring to FIG. 2, the externally input signal may be one of a pressure signal, a temperature signal, an optical signal, and an RF signal.

以下では、外部から入力される信号が圧力信号と決定された場合を例に挙げて説明する。このとき、信号変換部１００は、圧力を受けると電圧が誘導される圧電モジュール１１０であることができる。   Hereinafter, a case where a signal input from the outside is determined as a pressure signal will be described as an example. At this time, the signal conversion unit 100 may be a piezoelectric module 110 in which a voltage is induced when pressure is received.

より詳細には、外部からの圧力または音信号から誘起された圧力が上記圧電モジュール１１０に提供されることができる。このとき、上記圧電モジュール１１０は、圧電セラミック構造でありながらペロブスカイト構造であることができる。即ち、双極子を形成しない単純な六面体対称を示すが、キュリー点（Ｃｕｒｉｅ ｐｏｉｎｔ）における各結晶は四面体を有するため双極子を形成することができる。隣接した双極子は、ドメイン（ｄｏｍａｉｎ）と呼ばれる局部的に整列された領域を形成することができる。但し、極性方向はランダムに形成されるため、物質全体の極性は見られない。このとき、外部からの圧力または音信号から誘起された圧力が圧電モジュール１１０に印加されると、双極モーメントが変わって電圧が誘導されることができる。   More specifically, an external pressure or a pressure induced from a sound signal can be provided to the piezoelectric module 110. At this time, the piezoelectric module 110 may have a perovskite structure while being a piezoelectric ceramic structure. That is, it shows a simple hexahedral symmetry that does not form a dipole, but each crystal at the Curie point has a tetrahedron, so that a dipole can be formed. Adjacent dipoles can form locally aligned regions called domains. However, since the polarity direction is formed at random, the polarity of the whole substance is not seen. At this time, when an external pressure or a pressure induced from a sound signal is applied to the piezoelectric module 110, the bipolar moment is changed and a voltage can be induced.

一方、図３の（ａ）を参照すると、時間の変化によって誘導される電圧量が分かる。このとき、最大電圧は０．１ｍＶであることができる。このとき、誘導される電圧は、信号整流部２００の一実施例としてトリクル充電回路を用いることにより、上記エネルギー貯蔵部３００に提供されることができる。   On the other hand, referring to FIG. 3A, the amount of voltage induced by a change in time can be seen. At this time, the maximum voltage may be 0.1 mV. At this time, the induced voltage may be provided to the energy storage unit 300 by using a trickle charging circuit as an example of the signal rectification unit 200.

即ち、上記圧電モジュール１１０は、外部圧力信号から電圧を誘導させて電気信号に変換させることができ、これを上記信号整流部２００に提供することができる。   That is, the piezoelectric module 110 can induce a voltage from an external pressure signal and convert it into an electrical signal, which can be provided to the signal rectifier 200.

上記信号整流部２００では、上記電気信号の提供を受けて整流効率を最大限にすることができる。このとき、上記信号整流部２００の一実施例は、トリクル充電回路（Ｔｒｉｃｌｅ ｃｈａｒｇｅ ｃｉｒｃｕｉｔ）であることができる。   The signal rectifier 200 can maximize the rectification efficiency by receiving the electrical signal. At this time, an example of the signal rectification unit 200 may be a trickle charge circuit.

上記信号整流部２００から整流された上記電気信号は、上記エネルギー貯蔵部３００に提供されることができる。上記エネルギー貯蔵部は、価格表示装置の動作に用いられるように上記電気信号を貯蔵することができる。   The electrical signal rectified from the signal rectifying unit 200 may be provided to the energy storage unit 300. The energy storage unit may store the electrical signal to be used for the operation of the price display device.

よって、外部信号のうち圧力信号の入力を受け、電気信号に変換して提供することで、動作可能な価格表示装置を提供することができる。   Therefore, an operable price display device can be provided by receiving an input of a pressure signal from an external signal and converting it into an electrical signal.

以下では、外部から入力される信号が温度信号と決定された場合を例に挙げて説明する。このとき、信号変換部１００は、温度差によって電圧が誘導される熱電モジュール１２０であることができる。   Hereinafter, a case where a signal input from the outside is determined as a temperature signal will be described as an example. At this time, the signal conversion unit 100 may be a thermoelectric module 120 in which a voltage is induced by a temperature difference.

より詳細には、熱電モジュール１２０は、半導体の両側端に発生する温度差により移動される内部電子を用いることで、電気信号を生成することができる。また、用いられる温度区間によって性能差が生じる。一実施例として、０℃以上２００℃未満では、Ｂｉ−Ｔｅ系の合金、５００℃まではＰｂ−Ｔｅ系の合金、それ以上ではＳｉ−Ｇｅ系の合金からなる熱電材料を用いることができる。   More specifically, the thermoelectric module 120 can generate an electrical signal by using internal electrons that are moved by a temperature difference generated at both ends of the semiconductor. Moreover, a performance difference arises with the temperature area used. As an example, a thermoelectric material composed of a Bi—Te alloy at a temperature of 0 ° C. or more and less than 200 ° C., a Pb—Te alloy at a temperature up to 500 ° C., or a Si—Ge alloy at a temperature higher than that can be used.

また、図３の（ｂ）を参照すると、時間の変化によって誘導される電圧量が分かる。このとき、最大電圧は０．０１ｍＶであることができる。このとき、誘導される電圧は、信号整流部２００の一実施例としてトリクル充電回路を用いることにより、上記エネルギー貯蔵部３００に提供されることができる。   Further, referring to FIG. 3B, the amount of voltage induced by a change in time can be seen. At this time, the maximum voltage may be 0.01 mV. At this time, the induced voltage may be provided to the energy storage unit 300 by using a trickle charging circuit as an example of the signal rectification unit 200.

即ち、上記熱電モジュール１２０は、外部温度信号から電圧を誘導させて電気信号に変換することができ、これを上記信号整流部２００に提供することができる。   That is, the thermoelectric module 120 can induce a voltage from an external temperature signal and convert it into an electrical signal, which can be provided to the signal rectifier 200.

上記信号整流部２００及び上記エネルギー貯蔵部３００については上述した通りである。   The signal rectification unit 200 and the energy storage unit 300 are as described above.

よって、外部信号のうち温度差による温度信号の入力を受け、電気信号に変換して提供することで、動作可能な価格表示装置を提供することができる。   Therefore, an operable price display device can be provided by receiving an input of a temperature signal due to a temperature difference among external signals, and converting the signal into an electrical signal.

以下では、外部から入力される信号が光信号と決定された場合を例に挙げて説明する。このとき、信号変換部１００は、入力される光信号によって電圧が誘導される光電モジュール１３０であることができる。   Hereinafter, a case where an externally input signal is determined as an optical signal will be described as an example. At this time, the signal conversion unit 100 may be a photoelectric module 130 in which a voltage is induced by an input optical signal.

より詳細には、太陽熱や蛍光ランプなどのような外部光信号が光電モジュール１３０に入力されることができる。上記光電モジュール１３０は、一実施例としてソーラーセル（Ｓｏｌａｒ ｃｅｌｌ）であることができる。上記光電モジュール１３０は、上記光信号の入力を受け、上記光電モジュール１３０の内部に発生する電子及び正孔の移動によって生じるＰ極とＮ極の電位差を発生させることができる。このとき、上記光電モジュール１３０に負荷を連結させて電圧を誘導することができる。   More specifically, an external light signal such as solar heat or a fluorescent lamp can be input to the photoelectric module 130. The photoelectric module 130 may be a solar cell as an example. The photoelectric module 130 can receive the optical signal and generate a potential difference between the P-pole and the N-pole generated by the movement of electrons and holes generated in the photoelectric module 130. At this time, a load may be connected to the photoelectric module 130 to induce a voltage.

一方、図３の（ｃ）を参照すると、時間の変化によって誘導される電圧量が分かる。このとき、最大電圧は１ｍＶであることができる。このとき、誘導される電圧は、信号整流部２００の一実施例としてトリクル充電回路を用いることにより、上記エネルギー貯蔵部３００に提供されることができる。   On the other hand, referring to FIG. 3C, the amount of voltage induced by the change in time can be seen. At this time, the maximum voltage may be 1 mV. At this time, the induced voltage may be provided to the energy storage unit 300 by using a trickle charging circuit as an example of the signal rectification unit 200.

即ち、上記光電モジュール１３０は、外部光信号から電圧を誘導させて電気信号に変換することができ、これを上記信号整流部２００に提供することができる。   That is, the photoelectric module 130 can induce a voltage from an external optical signal and convert it into an electrical signal, which can be provided to the signal rectifier 200.

上記信号整流部２００及び上記エネルギー貯蔵部３００については上述した通りである。   The signal rectification unit 200 and the energy storage unit 300 are as described above.

よって、外部信号のうち太陽熱や蛍光ランプなどによる光信号の入力を受け、電気信号に変換して提供することで、動作可能な価格表示装置を提供することができる。   Therefore, by receiving an input of an optical signal from an external signal such as solar heat or a fluorescent lamp, and converting it into an electrical signal, an operable price display device can be provided.

以下では、外部から入力される信号がＲＦ信号と決定された場合を例に挙げて説明する。このとき、信号変換部１００は、入力されるＲＦ信号によって電圧が誘導される周波数モジュール１４０であることができる。   Hereinafter, a case where an externally input signal is determined as an RF signal will be described as an example. At this time, the signal converter 100 may be a frequency module 140 in which a voltage is induced by an input RF signal.

より詳細には、外部ＲＦ信号が上記周波数モジュール１４０に入力されることができる。この場合、上記周波数モジュール１４０の一実施例としてレクテナ（Ｒｅｃｔｅｎｎａ）を用いることができる。即ち、外部ＲＦ信号をアンテナを通じて受信し、ダイオード及びフィルターで構成された整流回路によって直流電気信号に変換させることができる。また、上記レクテナは、少なくとも一つであることができる。   More specifically, an external RF signal can be input to the frequency module 140. In this case, a rectenna can be used as an example of the frequency module 140. That is, an external RF signal can be received through an antenna and converted into a DC electric signal by a rectifier circuit composed of a diode and a filter. The rectenna may be at least one.

また、図３の（ｄ）を参照すると、アンテナから誘導される電力は、最大０．０１［ｕＶ］未満であるが、信号整流部２００の一実施例としてトリクル充電回路を用いることにより、上記エネルギー貯蔵部３００に提供されることができる。   Further, referring to FIG. 3D, the power induced from the antenna is less than 0.01 [uV] at the maximum, but by using a trickle charging circuit as an example of the signal rectifying unit 200, The energy storage unit 300 may be provided.

即ち、上記電磁波モジュール１４０は、外部ＲＦ信号から電圧を誘導させて電気信号に変換することができ、これを上記信号整流部２００に提供することができる。   That is, the electromagnetic wave module 140 can induce a voltage from an external RF signal and convert it into an electrical signal, which can be provided to the signal rectifier 200.

上記信号整流部２００及び上記エネルギー貯蔵部３００については上述した通りである。   The signal rectification unit 200 and the energy storage unit 300 are as described above.

よって、外部信号のうちＲＦ信号の入力を受け、電気信号に変換して提供することで、動作可能な価格表示装置を提供することができる。   Therefore, an operable price display device can be provided by receiving an RF signal input from an external signal and converting it into an electrical signal.

但し、図４を参照すると、本発明による価格表示装置は、周辺環境の温度（０℃、２０℃及び４５℃）によって充填される電圧量が異なることが分かる。   However, referring to FIG. 4, it can be seen that the price display device according to the present invention has different voltage amounts depending on the ambient temperature (0 ° C., 20 ° C. and 45 ° C.).

以上、本発明の実施形態について詳細に説明したが、本発明の権利範囲はこれに限定されず、特許請求の範囲に記載された本発明の技術的思想から外れない範囲内で多様な修正及び変形が可能であるということは、当技術分野の通常の知識を有するものには明らかである。   Although the embodiment of the present invention has been described in detail above, the scope of the right of the present invention is not limited to this, and various modifications and modifications can be made without departing from the technical idea of the present invention described in the claims. It will be apparent to those of ordinary skill in the art that variations are possible.

１００ 信号変換部
１１０ 圧電モジュール
１２０ 熱電モジュール
１３０ 光電モジュール
１４０ 電磁波モジュール
２００ 信号整流部
３００ エネルギー貯蔵部 DESCRIPTION OF SYMBOLS 100 Signal conversion part 110 Piezoelectric module 120 Thermoelectric module 130 Photoelectric module 140 Electromagnetic wave module 200 Signal rectification part 300 Energy storage part

Claims (7)

外部信号の入力を受けて電気信号に変換して提供する信号変換部と、
前記電気信号の提供を受け、電源を供給するためのエネルギーを貯蔵するエネルギー貯蔵部と、を含む、電子棚札システムの価格表示装置。 A signal converter that receives an external signal and converts it into an electrical signal;
A price display device for an electronic shelf label system, comprising: an energy storage unit that receives the electric signal and stores energy for supplying power. 前記信号変換部と連結され、前記電気信号を整流して前記エネルギー貯蔵部に提供する信号整流部をさらに含む、請求項１に記載の電子棚札システムの価格表示装置。   The price display device of the electronic shelf label system according to claim 1, further comprising a signal rectifier connected to the signal converter and rectifying the electric signal and providing the rectified electric signal to the energy storage unit. 前記外部信号は、圧力信号、温度信号、光信号及びＲＦ信号のうちの少なくとも一つである、請求項１または２に記載の電子棚札システムの価格表示装置。   The price display device of the electronic shelf label system according to claim 1 or 2, wherein the external signal is at least one of a pressure signal, a temperature signal, an optical signal, and an RF signal. 前記外部信号が圧力信号である場合、前記信号変換部は、前記圧力信号の受信を受けて電気信号を生成する圧電モジュールである、請求項３に記載の電子棚札システムの価格表示装置。   The price display device of the electronic shelf label system according to claim 3, wherein when the external signal is a pressure signal, the signal conversion unit is a piezoelectric module that receives the pressure signal and generates an electric signal. 前記外部信号が温度信号である場合、前記信号変換部は、前記温度信号の受信を受けて電気信号を生成する熱電モジュールである、請求項３または４に記載の電子棚札システムの価格表示装置。   5. The price display device for an electronic shelf label system according to claim 3, wherein when the external signal is a temperature signal, the signal conversion unit is a thermoelectric module that receives the temperature signal and generates an electrical signal. 6. . 前記外部信号が光信号である場合、前記信号変換部は、前記光信号の受信を受けて電気信号を生成する光電モジュールである、請求項３から５のいずれか１項に記載の電子棚札システムの価格表示装置。   The electronic shelf label according to any one of claims 3 to 5, wherein, when the external signal is an optical signal, the signal conversion unit is a photoelectric module that receives the optical signal and generates an electrical signal. System price display device. 前記外部信号がＲＦ信号である場合、前記信号変換部は、前記ＲＦ信号の受信を受けて電気信号を生成する電磁波モジュールである、請求項３から６のいずれか１項に記載の電子棚札システムの価格表示装置。   The electronic shelf label according to any one of claims 3 to 6, wherein when the external signal is an RF signal, the signal converter is an electromagnetic wave module that receives the RF signal and generates an electric signal. System price display device.
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