201112129 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種無線射頻 技術的無線射頻辨識系統。 5 、、’，寺別是關於具有儲能 【先前技術】 無線射頻辨識系統（_，Radi〇 :dent山catiorO在目前的應用極為廣泛包括二巧 物流管理以至於醫療照護等等。 不感應、 請參考第-圖，其係傳統_系統架 獅系統係由-讀取器110、一射頻標藏12〇及一= 元140所組成。 干 讀取器110具有-天線lu，能夠不斷發射訊號以產 生-感應磁場，當射頻標籤120進入該感應磁場範圍内時， 讀取器110便能讀取到射頻標藏120 _資料，再將該資 料傳送到控制單元140 ’以進行下一階段的處理。 射頻標籤120具有一發射天線124，其内部的資料為 一序號或是一識別碼，不同的序號或是識別碼可代表不同 的資訊，該些資訊對應可建構在控制單元14〇中。當射頻 標籤120進入讀取器110之感應磁場範圍内時，發射天線 124受到感應磁場作用，利用無線通訊的方式將射頻標籤 120内的序號或是識別碼以射頻訊號傳送至讀取器no，再 透過射頻標籤120内的序號或是識別碼以及讀取器no之 辨識技術在控制單元140上進行射頻標籤120之分辨、追 蹤及管理。 RFID系統能提供優越之監控機制，不僅讀取器11〇能 201112129 同時感應多個射頻標籤12〇，並且可依其不同之射頻功率’ 產生遠近不目之讀取距離，〔成功取代產別条碼（如⑺⑹ 成為現代管理技術中重要角色。業界皆希望一方面提升供 應鏈管理效率，一方面能降低物流成本。 ^ 目前傳統RFID系統主要有使用兩種麵標鐵12〇。一 種是被動式射頻標籤’讀取H 11G需在近距離發出磁場， 將被動式射麟肋之絲細以充電方式發㈣頻訊號 給予讀取器110，因為其單價低，且_小，而較廣泛在物 ，管理上使用。另-種為主動式賴標鐵，主動式射頻標 籤内具有電池提供電力，可主祕綱碼由有電源供電之 感應線圈發ih射頻峨至讀取II11G，進而提供遠距離之物 件管理。 然而’這類傳統的RFID系統皆具有其限制。被動式射 頻標籤的舰為其錢距離過近，無法在較大的倉儲空間 進行自動化的物流管理，仍需人員進行個別管理^單 盤點程序’不但耗費時間，使用上亦不夠制。而主動 式線圈則因為其單偏，體積補^，甚至在個若干時 間後需更換電池之問題’成為物流管理之—大限制。 【發明内容】 7G 0 本發赌供-減應儲能之無線射_雕⑽系統， 該RFID系統包含-讀取器、—射頻標鐵以及一磁場產生單 4 201112129 射頻標籤可利用無線通訊的方式耦合於讀取器，而與傳 統RFID系統最大的差異在於本發明之RP丨D系統多具備了磁 場產生單元以及射頻標籤具有一儲能裝置。 射頻“戚之儲此裝置具有一第一線圈、一蓄電元件以及 一整流電路，整流電路係分別與第一線圈以及蓄電元件電性 連接。 磁場產生單元具有一第二線圈，第二線圈能夠藉由被供 ，一交流電後產生一交感磁場。當第一線圈位於該交感磁場 範圍内時，第一線圈將產生一感應電動勢，整流電路將感應 電動勢所產生的交流電轉換為直流電以儲存於蓄電元件。 關於本發明之優點與精神，以及更詳細的實施方式可以 藉由以下的實施方式以及所附圖式得到進一步的瞭解。 【實施方式】 # 請參考第二圖，其係本發明無線射頻辨識(RFID)系統架 構之示意圖。本發明之RFID系統包含一讀取器21〇、一射頻 標籤220以及一磁場產生單元230。 同傳統RFID系統’射頻標籤220内具有一識別碼，不同 識別碼可代表不同的資訊，且射頻標箴22〇可利用無線通訊 的方式耦合於讀取器210，而與傳統rfid系統最大的差異在 於本發明之RFID系統多具備了磁場產生單元23〇以及射頻標 籤220具有一儲能裝置221。 射頻標籤220之儲能裝置221具有一第一線圈2211、一 蓄電元件2212以及一整流電路2213，整流電路2213係分別 201112129 與第一線圈2211以及蓄電元件2212電性連接。 磁場產生單元230具有一第二線圈231，第二線圈231 能夠藉由被供給一交流電後產生一交感磁場232。由法拉第 定律可知：電路巾触錢電動勢小等於通過電路内 磁通量的時變率，即e=N(dp/dt);因此當第一線圈2211 位於該交感磁場232範圍内時，第一線圈2211將產生一感應 電動勢’整流電路2213將感應電動勢所產生的交流電轉換為 直流電以儲存於蓄電元件2212，其中，蓄電元件2212係由 電容元件所組成。 此外，射頻標籤220具有一發射天線224，其可利用蓄 電元件2212所儲存的電力將射頻訊號發射至讀取器21〇。 本發明之RFID系統更可包含一控制單元240，控制單元 240與讀取器210可以無線或有線的通訊方式連結，且控制 單元240可以是一電腦系統，射頻標籤220内的識別碼以及 其所對應的資訊皆可建構在控制單元24〇中。 因此當射頻標籤220之發射天線224將帶有控制碼的射 頻訊號發射至讀取器210後’讀取器21〇讀取該射頻訊號後， 再將其傳送至控制單元，進而透過控制單元240進行射頻標 籤220之分辨、追瞰及管理。 請參考第三圖，其係本發明無線射頻辨識系統執行方法 之步驟圖。本發明之射頻系統包含一讀取器21〇以及一射頻 標籤220，其中，射頻標籤220具有一第一線圈2211、一蓄 電元件2212以及一整流電路2213，該步驟包括： 第一步驟S1: —磁場產生單元230藉由供給一第二線圈 231 —交流電而產生一交感磁場232。 201112129 勢ε之第ΓΓ=··由法拉第定律可知··電路切生感應電動 勢ε之大小等於通過電路_通量的時變率€動 ==nt2211藉由交感磁場232得到一感應 ^ Λ電，射頻標藏220之整流電路2213 再將父流電轉換為直流電·存於f電播2212。 ㈣七第I射頻標鐵220利用蓄電元件2212所儲存 的電力發射一射頻訊號至讀取器21〇。 第四步驟S4:-控制單元依照讀取器21G所接收到 的射頻訊號以進行後續動作。 一，參考第四圖，其係本發明無線射頻辨識系統一實施例 ，示忍@。本實施例巾，複數個射頻標藏⑽位於磁場產生 單7L 230所產生交感磁場232中，該些射頻標籤22〇能夠不 斷藉由交感磁場232而產生電力，因此能夠長時間使用，具 有主動式射頻標籤之功效，而不必擔心電力不足需更換電池 的問題。 凊參考第五圖，其係本發明無線射頻辨識系統另一實施 例之示意圖。本實施例中，複數個空間R1、R2、R3以及R4 内皆具有複數個射頻標籤220，只要在交感磁場232範圍中 的射頻標籤220皆能夠持續具有電力，透過各個讀取器21〇 收集到各個射頻標籤220之射頻訊號，再以有線或無線的傳 輸方式傳送至控制單元240，以進行後續動作。 本發明之RFID系統之磁場產生單元230所使用的第二線 圈231較佳為大型線圈’因為其可產生涵蓋範圍大的交感磁 場，因此可以大範圍地對射頻標籤220充電。 201112129 此外，本發明之RFID系統之交感磁場232較佳為低頻磁 場，因為低頻磁場穿透能力高，能夠輕易穿透建築物，例如 大樓空間或室倉儲空間。 本發明之RFID系統及其執行方法針對傳統RFID系統缺 點加以改善，以新型儲能技術應用於RFID系統之射頻標籤 220上，建構一個可以接收磁場感應進行充電之自行發電之 射頻標籤220’主動發出射頻訊號給讀取器21〇。無須像被動 式射頻標籤只能近距離讀取，可達到主動式射頻標籤之功 效，又能在環境中自敏電而有效克服絲式_標藏需更 換電池之不便。 ，類射頻標籤220亦因其電子元件設計較為簡單，其體 積和單價皆可倾主動式射頻標籤^省時間及成本，擁有 便利及安全躲，可顧應用至各健業，甚 服務造福大眾。 首厥 本發明雖以健實例_如上，然其並刺以限定本發 2精神與發明實體僅止於上述實施例爾。對熟悉此項技術 f，f可㈣了解蘭用其它元件或方絲產生相同的功 效。疋以’在不脫離本發明之精神與範圍 應包含在下述之申請專利範圍内。 L改均 【圖式簡單說明】 ’將可輕易的了解上 藉由以下詳細之插述結合所附圖示 述内容及此項發明之諸多優點，其中： 第-圖.傳統無線射賴識系統架構之示意圖； 第二圖：本發明無線射頻辨識系統架構之示意圖； 201112129 行方法之步驟圖 f三圖：本翻無線射_識系_ ^圖·:本發明無線射_嶋統-實施例之示意圖，· 圖·本發明無線射頻辨識系統另一實施例之示意圖 【主要元件符號說明】 讀取器：110、210 天線·· 111 射頻標鐵.120、22〇 控制單元：140、24〇 發射天線·· 124、2¾ 儲能裝置：221 第一線圈：2211 蓄電元件：2212 整流電路：2213 磁場產生單元：230 第二線圈：231 交感磁場· 232 空間：Rl、R2、R3、只4201112129 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a radio frequency identification system for radio frequency technology. 5,, ', Temple is about having energy storage [previous technology] Radio Frequency Identification System (_, Radi〇: dent mountain catiorO in the current application is extremely extensive including the logistics management of the second and even medical care, etc. Please refer to the figure - the traditional _ system lion system is composed of - reader 110, a radio frequency standard 12 〇 and a = yuan 140. The dry reader 110 has an antenna lu, which can continuously transmit signals To generate an induced magnetic field, when the RF tag 120 enters the range of the induced magnetic field, the reader 110 can read the RF tag 120_data and transmit the data to the control unit 140' for the next stage. The radio frequency tag 120 has a transmitting antenna 124, and the internal data is a serial number or an identification code. Different serial numbers or identification codes can represent different information, and the information can be constructed in the control unit 14A. When the radio frequency tag 120 enters the range of the induced magnetic field of the reader 110, the transmitting antenna 124 is subjected to an induced magnetic field, and the serial number or the identification code in the radio frequency tag 120 is shot by wireless communication. The signal is transmitted to the reader no, and the identification, tracking and management of the radio frequency tag 120 is performed on the control unit 140 through the serial number or identification code in the radio frequency tag 120 and the identification technology of the reader no. The RFID system can provide superiority. Monitoring mechanism, not only the reader 11〇201112129 can simultaneously sense multiple RF tags 12〇, and can generate different distances depending on the different RF powers. [Successfully replace the bar code (such as (7)(6) becomes modern An important role in management technology. The industry hopes to improve the efficiency of supply chain management on the one hand, and reduce logistics costs on the other. ^ At present, the traditional RFID system mainly uses two kinds of surface standard iron 12〇. One is passive RF tag 'read H 11G It is necessary to emit a magnetic field at a short distance, and the passive type of the rib wire is sent to the reader 110 by means of a charging method, because the unit price is low, and the _ is small, and is widely used in the object and management. For the active-type standard iron, the active RF tag has a battery to provide power, and the main secret code can be sent from the induction coil with power supply to the ih radio frequency to read II1 1G, which provides remote object management. However, 'traditional RFID systems have their limitations. Passive RF tag ships are too close to money to automate logistics management in larger storage spaces. Individual management of the single-inventory program is not only time-consuming, but also insufficient to use. The active coil is a logistics management because of its single bias, volume compensation, and even the need to replace the battery after a certain period of time. [Limited] 7G 0 This is a wireless _ eagle (10) system for the singer-reducing energy storage. The RFID system includes a reader, a radio frequency standard, and a magnetic field generating unit. 4 201112129 RF tags are available. The way of wireless communication is coupled to the reader, and the biggest difference from the conventional RFID system is that the RP丨D system of the present invention has a magnetic field generating unit and the radio frequency tag has an energy storage device. The radio frequency device has a first coil, a storage element and a rectifier circuit, and the rectifier circuit is electrically connected to the first coil and the storage element respectively. The magnetic field generating unit has a second coil, and the second coil can borrow A sympathetic magnetic field is generated after being supplied with an alternating current. When the first coil is located within the range of the sympathetic magnetic field, the first coil generates an induced electromotive force, and the rectifier circuit converts the alternating current generated by the induced electromotive force into direct current for storage in the storage element. The advantages and spirits of the present invention, as well as the more detailed embodiments, can be further understood by the following embodiments and the accompanying drawings. [Embodiment] # Please refer to the second figure, which is the radio frequency identification of the present invention. A schematic diagram of an (RFID) system architecture. The RFID system of the present invention comprises a reader 21A, a radio frequency tag 220, and a magnetic field generating unit 230. Like the conventional RFID system, the radio frequency tag 220 has an identification code, and the different identification code can be Representing different information, and the radio frequency tag 22〇 can be coupled to the reader 21 by way of wireless communication. The biggest difference from the conventional rfid system is that the RFID system of the present invention has a magnetic field generating unit 23 and the radio frequency tag 220 has an energy storage device 221. The energy storage device 221 of the radio frequency tag 220 has a first coil 2211. A power storage device 2212 and a rectifier circuit 2213, the rectifier circuit 2213 is electrically connected to the first coil 2211 and the power storage device 2212, respectively. The magnetic field generating unit 230 has a second coil 231, and the second coil 231 can be supplied with a second coil 231. After the alternating current, a sympathetic magnetic field 232 is generated. According to Faraday's law, the electromotive force of the circuit towel is small equal to the time-varying rate of the magnetic flux passing through the circuit, that is, e=N(dp/dt); therefore, when the first coil 2211 is located in the sympathetic magnetic field 232 In the range, the first coil 2211 generates an induced electromotive force' rectifier circuit 2213 converts the alternating current generated by the induced electromotive force into direct current for storage in the storage element 2212, wherein the storage element 2212 is composed of a capacitive element. 220 has a transmit antenna 224 that can transmit radio frequency signals to the read using the power stored by the storage element 2212. The RFID system of the present invention may further include a control unit 240, the control unit 240 and the reader 210 may be connected by wireless or wired communication, and the control unit 240 may be a computer system, and the identification in the radio frequency tag 220 The code and its corresponding information can be constructed in the control unit 24. Therefore, when the transmitting antenna 224 of the radio frequency tag 220 transmits the radio frequency signal with the control code to the reader 210, the reader 21 reads the After the RF signal is transmitted to the control unit, the resolution, tracking and management of the RF tag 220 are performed through the control unit 240. Please refer to the third figure, which is a step diagram of the method for executing the RFID system of the present invention. The radio frequency system of the present invention comprises a reader 21A and a radio frequency tag 220. The radio frequency tag 220 has a first coil 2211, a storage element 2212 and a rectifying circuit 2213. The steps include: First step S1: The magnetic field generating unit 230 generates a sympathetic magnetic field 232 by supplying a second coil 231 - alternating current. 201112129 The third 势 of the potential ε =·· is known by Faraday's law. · The magnitude of the circuit-induced induced electromotive force ε is equal to the time-varying rate through the circuit _ flux == nt2211 by the symmetry magnetic field 232 to obtain an induction ^ Λ, The rectifier circuit 2213 of the radio frequency standard 220 converts the parent current into a direct current and stores it in the t-cast 2212. (4) The seventh I-RF tag 220 transmits an RF signal to the reader 21 by using the power stored in the storage element 2212. The fourth step S4: - the control unit follows the radio frequency signal received by the reader 21G for subsequent actions. First, referring to the fourth figure, which is an embodiment of the radio frequency identification system of the present invention, showing tolerance@. In the embodiment, a plurality of radio frequency tags (10) are located in the magnetic field generating body 232 generated by the magnetic field generating unit 7L 230, and the radio frequency tags 22〇 can continuously generate electric power by the symmetry magnetic field 232, so that the radio frequency tag 22 can be used for a long time and has an active type. The power of the RF tag does not have to worry about the need to replace the battery if there is insufficient power. Referring to the fifth diagram, it is a schematic diagram of another embodiment of the radio frequency identification system of the present invention. In this embodiment, the plurality of spaces R1, R2, R3, and R4 each have a plurality of radio frequency tags 220, as long as the radio frequency tags 220 in the range of the sympathetic magnetic field 232 can continue to have power, and are collected through the respective readers 21 The RF signals of the respective RF tags 220 are transmitted to the control unit 240 in a wired or wireless transmission mode for subsequent operations. The second coil 231 used by the magnetic field generating unit 230 of the RFID system of the present invention is preferably a large coil ' because it can produce a wide range of sympathetic magnetic fields, so that the radio frequency tag 220 can be charged in a wide range. In addition, the symmetries magnetic field 232 of the RFID system of the present invention is preferably a low frequency magnetic field because the low frequency magnetic field has high penetration capability and can easily penetrate buildings such as building space or room storage space. The RFID system and the implementation method thereof are improved for the defects of the conventional RFID system, and the new energy storage technology is applied to the radio frequency tag 220 of the RFID system, and a radio frequency tag 220' capable of receiving magnetic field induction for charging is constructed. The RF signal is sent to the reader 21〇. It is not necessary to read the passive RF tag only at a close distance, which can achieve the effect of the active RF tag, and can automatically overcome the inconvenience of replacing the battery in the environment. The RF tag 220 is also simple in design of its electronic components. Its volume and unit price can be tilted to active RF tags. It saves time and cost. It has convenience and safety. It can be applied to various health industries and services for the benefit of the public. The present invention is based on the above examples, and the present invention is limited to the above embodiments. Familiar with this technology f, f can (4) understand that Lan uses other components or square wires to produce the same effect. The spirit and scope of the present invention should be included in the scope of the following claims. L 改均 [Simplified description of the drawings] 'It will be easy to understand the following detailed description by combining the following illustrations with the advantages of the invention, wherein: Figure - Traditional wireless imaging system Schematic diagram of the architecture; second diagram: schematic diagram of the architecture of the radio frequency identification system of the present invention; 201112129 steps of the method of the line diagram f three diagrams: the radio radiography _ _ _ ^ diagram: the wireless radio system of the invention - the embodiment BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of another embodiment of the radio frequency identification system of the present invention. [Main component symbol description] Reader: 110, 210 antenna · 111 RF standard iron. 120, 22 〇 control unit: 140, 24 〇 Transmitting antenna ·· 124,23⁄4 Energy storage device: 221 First coil: 2211 Power storage component: 2212 Rectifier circuit: 2213 Magnetic field generating unit: 230 Second coil: 231 Symmetric magnetic field · 232 Space: Rl, R2, R3, only 4