TWI502887B - 電源控制裝置及控制方法 - Google Patents

電源控制裝置及控制方法 Download PDF

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TWI502887B
TWI502887B TW101135462A TW101135462A TWI502887B TW I502887 B TWI502887 B TW I502887B TW 101135462 A TW101135462 A TW 101135462A TW 101135462 A TW101135462 A TW 101135462A TW I502887 B TWI502887 B TW I502887B
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antenna
unit
power
detector
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TW101135462A
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TW201414201A (zh
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Huan Sheng Chen
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Hon Hai Prec Ind Co Ltd
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Priority to US13/664,443 priority patent/US20140084707A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/14—Protecting elements, switches, relays or circuit breakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Description

電源控制裝置及控制方法
本發明涉及一種電源控制裝置及控制方法，尤其涉及一種具有身份識別功能的電源控制裝置及控制方法。
目前的電源控制裝置包括控制模組和電氣插座，其中，控制模組透過連接介面與外部電子裝置連接，以接收執行信號，並以有線或無線的方式，控制繼電器觸動電氣插座的電氣插槽，從而控制外部電氣設備的運作。但該電源控制裝置不具有身份識別功能，降低了電源控制的安全性。
針對上述問題，有必要提供一種電源控制裝置及控制方法。
一種電源控制裝置，用於控制一外部用電設備與一外部交流電源相連，包括：一轉換單元，用於將所述外部交流電源轉換成直流電源；一開關單元，連接於所述轉換單元和所述外部用電設備之間；一第一天線，用於感應一手持控制器的一第二天線，其中，該手持控制器將使用者身份資訊進行加密產生一包含使用者身份資訊的加密信號，通過該第二天線進行發送；一檢波器，用於在第一天線是否感應到所述第二天線時，輸出不同的電壓值；一匹配解碼單元，與所述手持控制器相匹配，在第一天線感應到所述第二天線時，獲取所述加密信號，將加密信號進行解碼從而 得到使用者身份資訊；及一電源控制單元，與所述第一天線、開關單元、檢波器及匹配解碼單元相連，在接收到檢波器產生的電壓值時判斷匹配解碼單元是否解碼使用者身份資訊成功，在解碼成功後，控制所述開關單元導通或斷開，從而使所述外部用電設備與所述外部交流電導通或斷開。
一種電源控制裝置的控制方法，包括步驟：利用一轉換單元將所述外部交流電源轉換成直流電源；利用一第一天線感應一手持控制器的一第二天線，其中，該手持控制器將使用者身份資訊進行加密產生一包含使用者身份資訊的加密信號，通過該第二天線進行發送；利用一檢波器在第一天線是否感應到所述第二天線時，輸出不同的電壓值；利用一與所述手持控制器相匹配的匹配解碼單元，在第一天線感應到所述第二天線時，獲取所述加密信號，將加密信號進行解碼從而得到使用者身份資訊；利用一電源控制單元在接收到檢波器產生的電壓值時判斷匹配解碼單元是否解碼使用者身份資訊成功；及在解碼成功後，控制一連接於所述轉換單元和所述外部用電設備之間的開關單元導通或斷開，從而使所述外部用電設備與所述外部交流電導通或斷開。
本發明電源控制裝置及控制方法，感應並獲取近距離傳輸的具有使用者身份資訊的加密信號，將加密信號進行解碼從而得到使用者身份資訊，在解碼成功時控制外部電源與外部充電裝置導通或截止，增加了電源控制的安全性。
10 10’‧‧‧電源控制裝置
20‧‧‧手持控制器
30‧‧‧外部用電設備
40‧‧‧外部交流電源
110‧‧‧轉換單元
120‧‧‧開關單元
130‧‧‧電源控制單元
140‧‧‧第一天線
150‧‧‧檢波器
160‧‧‧匹配解碼單元
170‧‧‧電源管理單元
201‧‧‧第二天線
202‧‧‧微控制器
203‧‧‧近距離傳輸控制單元
圖1為本發明優先實施方式下電源控制裝置的硬體架構圖。
圖2為圖1中的電源控制裝置控制負載與外部交流電源之間的導通 或截止的方法流程圖。
圖3為本發明其他實施方式下電源控制裝置的硬體架構圖。
請參閱圖1，為本發明優先實施方式下電源控制裝置的硬體架構圖。電源控制裝置10，用於控制一負載(如外部用電設備30)與一外部交流電源40之間的導通或截止。
該電源控制裝置10還與一手持控制器20連接。該手持控制器20包括一第二天線201、一微控制器202及一近距離傳輸控制單元203。所述微控制器202根據使用者的操作，將使用者身份資訊進行加密產生一包含使用者身份資訊的加密信號，由近距離傳輸控制單元203通過第二天線201發射該加密信號。具體的，近距離傳輸控制單元203可採用近距離傳輸方式發射該具有使用者身份資訊的信號，如近場通訊技術(Near Field Communication，NFC)。
該電源控制裝置10包括一轉換單元110、一開關單元120、一電源控制單元130、一第一天線140、一檢波器150及一匹配解碼單元160。
所述轉換單元110用於將所述外部交流電源40產生的交流電轉換成直流電。
所述開關單元120，連接於所述轉換單元110和所述外部用電設備30之間，其導通或斷開用於使所述外部用電設備30與所述外部交流電源40導通或斷開。具體的，該開關單元120可為一繼電器。
所述第一天線140，用於感應所述手持控制器20的第二天線201。
所述檢波器150，用於在第一天線140感應到所述第二天線201時，輸出不同的電壓值。具體的，檢波器150在第一天線140感應到所述第二天線201時輸出高電平，而在未感應到所述第二天線201時輸出低電平，或在第一天線140感應到所述第二天線201時輸出低電平，而在未感應到所述第二天線201時輸出高電平。
所述匹配解碼單元160，與所述手持控制器20相匹配，只解碼所述手持控制器20發送的信號。在第一天線140感應到所述第二天線201時，所述匹配解碼單元160獲取所述加密信號，將加密信號進行解碼從而得到使用者身份資訊。具體的，匹配解碼單元160與微控制器202的加密方法相匹配，按照微控制器202的加密規則進行解碼操作。
所述電源控制單元130，與所述第一天線140、開關單元120、檢波器150及匹配解碼單元160相連。電源控制單元130判斷檢波器150是否輸出不同的電壓值從而確定第一天線140是否感應到所述第二天線201，電源控制單元130在接收到不同的電壓值時判斷匹配解碼單元160是否解碼使用者身份資訊成功，在解碼成功後，控制所述開關單元120導通或斷開，從而使所述外部用電設備30與所述外部交流電源40導通或斷開。具體的，判斷解碼使用者身份資訊是否成功的方法可參考現有技術，如，判斷解密出的資料是否符合預定規則。
具體的，若檢波器150在第一天線140感應到所述第二天線201時輸出高電平，而在未感應到所述第二天線201時輸出低電平時，所述電源控制單元130在接收到高電平時判斷匹配解碼單元160是否解碼使用者身份資訊成功。若檢波器150在第一天線140感應到 所述第二天線201時輸出低電平，而在未感應到所述第二天線201時輸出高電平時，所述電源控制單元130在接收到低電平時判斷匹配解碼單元160是否解碼使用者身份資訊成功。
圖2是圖1中的電源控制裝置10控制外部用電設備30與外部交流電源40之間的導通或截止的方法流程圖。
步驟S201中，所述電源控制單元130判斷檢波器150是否輸出不同的電壓值從而確定第一天線140是否感應到所述第二天線201，若是，流程至步驟S202，若否，流程重複步驟S201；步驟S202中，所述匹配解碼單元160在第一天線140感應到所述第二天線201時，獲取所述加密信號，將加密信號進行解碼從而得到使用者身份資訊；步驟S203中，所述電源控制單元130判斷是否解碼成功，解碼成功時，流程至步驟S204，解碼失敗時，流程至步驟S201；步驟S204中，所述電源控制單元130控制所述開關單元120導通或斷開從而使所述外部用電設備30與所述外部交流電源40導通或斷開。
圖3是本發明其他實施方式下電源控制裝置的硬體架構圖。與圖1相比，電源控制裝置10’還包括一電源管理單元170，用於利用轉換單元110產生的直流電源給所述開關單元120、電源控制單元130、第一天線140、檢波器150及匹配解碼單元160供電，使所述開關單元120、電源控制單元130、第一天線140、檢波器150及匹配解碼單元160工作。
以上電源控制裝置10及10’，感應並獲取近距離傳輸的具有使用 者身份資訊的加密信號，將加密信號進行解碼從而得到使用者身份資訊，在解碼成功時控制外部電源與外部充電裝置導通或截止，增加了電源控制的安全性。
10‧‧‧電源控制裝置
20‧‧‧手持控制器
30‧‧‧外部用電設備
40‧‧‧外部交流電源
110‧‧‧轉換單元
120‧‧‧開關單元
130‧‧‧電源控制單元
140‧‧‧第一天線
150‧‧‧檢波器
160‧‧‧匹配解碼單元
201‧‧‧第二天線
202‧‧‧微控制器
203‧‧‧近距離傳輸控制單元

Claims (6)

  1. 一種電源控制裝置，用於控制一外部用電設備與一外部交流電源相連，包括一轉換單元，用於將所述外部交流電源轉換成直流電源；一開關單元，連接於所述轉換單元和所述外部用電設備之間；其改良在於，該電源控制裝置還包括：一第一天線，用於感應一手持控制器的一第二天線，其中，該手持控制器將使用者身份資訊進行加密產生一包含使用者身份資訊的加密信號，通過該第二天線進行發送；一檢波器，用於在第一天線是否感應到所述第二天線時，輸出不同的電壓值；一匹配解碼單元，與所述手持控制器相匹配，在第一天線感應到所述第二天線時，獲取所述加密信號，將加密信號進行解碼從而得到使用者身份資訊；及一電源控制單元，與所述第一天線、開關單元、檢波器及匹配解碼單元相連，在接收到檢波器產生的電壓值時判斷匹配解碼單元是否解碼使用者身份資訊成功，在解碼成功後，控制所述開關單元導通或斷開，從而使所述外部用電設備與所述外部交流電導通或斷開；其中，所述檢波器在第一天線感應到所述第二天線時輸出高電平，而在未感應到所述第二天線時輸出低電平，所述電源控制單元在接收到高電平時判斷匹配解碼單元是否解碼使用者身份資訊成功；或所述檢波器在第一天線感應到所述第二天線時輸出低電平，而在未感應到所述第二天線時輸出高電平，所述電源控制單元在接收到低電平時判斷匹配解碼單元是否解碼使用者身份資訊成功。
  2. 如申請專利範圍第1項所述之電源控制裝置，其中，所述開關單元為一繼電器。
  3. 如申請專利範圍第1項所述之電源控制裝置，其中，所述電源控制裝置還包括一電源管理單元，用於利用轉換單元產生的直流電源給所述開關單元、電源控制單元、第一天線、檢波器及匹配解碼單元供電，使所述開關單元、電源控制單元、第一天線、檢波器及匹配解碼單元工作。
  4. 一種電源控制裝置的控制方法，包括步驟：利用一轉換單元將所述外部交流電源轉換成直流電源；利用一第一天線感應一手持控制器的一第二天線，其中，該手持控制器將使用者身份資訊進行加密產生一包含使用者身份資訊的加密信號，通過該第二天線進行發送；利用一檢波器在第一天線是否感應到所述第二天線時，輸出不同的電壓值；利用一與所述手持控制器相匹配的匹配解碼單元，在第一天線感應到所述第二天線時，獲取所述加密信號，將加密信號進行解碼從而得到使用者身份資訊；利用一電源控制單元在接收到檢波器產生的電壓值時判斷匹配解碼單元是否解碼使用者身份資訊成功；及在解碼成功後，控制一連接於所述轉換單元和所述外部用電設備之間的開關單元導通或斷開，從而使所述外部用電設備與所述外部交流電導通或斷開；其中，利用所述檢波器在第一天線感應到所述第二天線時輸出高電平，而在未感應到所述第二天線時輸出低電平時，利用所述電源控制單元在接收到高電平時判斷匹配解碼單元是否解碼使用者身份資訊成功；或利用所述檢波器在第一天線感應到所述第二天線時輸出低電平，而在未 感應到所述第二天線時輸出高電平，利用所述電源控制單元在接收到低電平時判斷匹配解碼單元是否解碼使用者身份資訊成功。
  5. 如申請專利範圍第4項所述之控制方法，其中，所述開關單元為一繼電器。
  6. 如申請專利範圍第4項所述之控制方法，其中，所述切換方法還包括步驟：利用一電源管理單元將轉換單元產生的直流電源給所述開關單元、電源控制單元、第一天線、檢波器及匹配解碼單元供電，使所述開關單元、電源控制單元、第一天線、檢波器及匹配解碼單元工作。
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