1280719 九、發明說明： 【發明所屬之技術領域】 本么月疋有關於一種具回報功能之電力供 檢測裝置，特別是指一種透過公眾寬頻網路回報:岸交 狀態改變訊息予—控制中心之具回報功能之電 改變檢測裝置。 刀仏應狀悲 【先前技術】 IW者设備自動化與電氣化’對於電力的依賴與辦 ^旦停電時間越長，對用戶越造成不便，甚至造成更多曰 貝失因此’當電力負载端發生故障（諸如停電）時，立即回 報，故障訊息，以在最短時間内尋找出故障點加以排除， =疋王世界各電力公司的努力目的之一。目前國外的電力 么司係於用戶端裝設停電檢測器或具停電檢測功能之智慧 型電表，-旦故障發生時此停電檢測器或具停電檢測功能 之智慧型電表透過電話網路回傳停電故障訊息，則電力八 司可由電話號碼推知故障的用戶端，供維修人員快速^ 效率地處理用戶之麻煩，如美國北羅萊納電力公司（CP&L) 、美國太平洋瓦斯及電力公3Ί(Κ5&Ε)、美國愛達荷電力公 司（Idaho p0we_美國消費者電力公司（c〇nsumer ρ〇.)均 採用類似的停電檢測方式。因此，目前停電檢測設備的停 電訊息不外乎透過電話網路來回報電力公司，停電檢測端 需再額外設置-訊號傳輸模組’以將訊號轉換成適合於前 述傳輸線路傳送之訊號。 然而，隨著網際網路的普及化，幾乎家家戶戶皆可連 1280719 接網際網路且頻寬逐年增加，因而倘若停電檢«置㈣ 過網際網路來回報停電訊息予電力公司，如此利用用戶既 有網路通訊裝置來透過網際網路回報停電訊息，將可有效 迅速檢測停電狀態。而目前連上網際網路的硬體網路架構 主要就是公眾寬頻網路。 【發明内容】 因此’本發明之目的，即在提供—種具回報功能之電 力供應狀態改變檢測裝置，以達到利用公眾寬頻網路即時 回報電力供應狀態改變訊息之功效。 本發明之具回報功能之電力供應狀態改變檢測裝置， 係用以檢測一用戶端中一供應市電的電力線上的電力供應 狀態，並於檢測到該電力供應狀態改變時回報給一遠端控 制中。》亥才欢測裝置係包括一交流脈衝信號檢測模組、一 微處理器、-網路通訊模組及一電源模組；其中，該交流 脈衝信號檢測模組連接該電力線，隨該市電饋入而進入一 2電狀態以對應輸出—脈衝訊號，㈣該市電不再饋入而 欠成-如電狀嘘以中止輸出該脈衝訊號；該微處理器用以 =該檢測裝置之整體運作，該微處理器係連接該交流脈 號檢^inx接收該脈衝訊號，當該交流 測f組之狀態改變時，對應產生一電力供應狀態改變訊息 亥，·罔路通减組係連接該微處理器並受該微處理器控制 ’以將該電力供狀態改變訊息經公眾寬頻網路傳送予該控 :中心；及該電源模組具有一電池，以供應該檢 動所需之電力。 6 1280719 本發明之功效能提供一種具回報功能之電力供應狀態 改變檢測裝置，其不僅能有效偵測用戶之電力供應狀態改 變’且能利用公眾寬頻網路迅速回報控制中心，以使控制 中心可儘速主動處理用戶的電力供應狀態改變的情況。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 進一步闡釋。 簽閱圖1，本發明具回報功能之電力供應狀態改變檢測 裝置1之較佳實施例係分別設置於電力公司的各用戶端， 在電力公司端設有一控制中心3。本例之控制中心3可為一 伺服而内建些電力管理程序，例如停復電處理程序 等等。如此，一旦用戶端之電力供應狀態改變時，用戶端 才双則裝置1可透過公眾寬頻網路2回報此用戶端之電力 供應狀態改變訊息至控制中心、3,控制中心3可即時進行處 理，例如儘速派維修人員修復等等。 如圖2,本實_之檢測裝置丨包括—交流脈衝信號檢 測模組11、一微處理器12、一網路通訊模組13及-電源模 組14。 、本例之交流脈衝信號檢測模組n連接於電錶後的電力 線上’以擷取市電之交流信號。交流脈衝信號檢測模組 *換於供電狀恶或一停電狀態。當用戶端電力供應正 =即:電正常供應）時，市電會沿電力、線10饋入交流脈衝 J J枳、’且11，此時交流脈衝信號檢測模組11進入供電 1280719 狀態，以擷取市電的交流信號並轉換成一脈衝訊號，以輸 出至微處理器12。反之，一旦電力供應中斷（即斷電）時，交 流脈衝信號檢測模組11會由供電狀態切換成停電狀態，且 因無法再擷取到市電的交流信號，因而會中止輸出脈衝訊 號。本例之交流脈衝信號檢測模組u於供電狀態時，會經 橋式半波整流電路（圖未示）將市電頻率6〇Hz 理成頻率蘭2之正半波訊號，接著由光輛合器(圖未= 越零點產生脈衝數位信號，再經由電晶體（圖未示）在集極產 生反向之脈衝，轉換為頻率120Hz之數位脈衝訊號y將此 脈衝訊號輸入至微處…2。因而，交流脈衝信號檢測模 且11可p现市電有無而輸出脈衝訊號至微處理器12。 Μ處理态12用以控制檢測裝置丨之整體運作。因而， 楗處理器12係連接交流脈衝信號檢測模組u、網路通訊模 組13與電源模組14。微處理器i會自交流脈衝信號檢測模 組11接收脈衝訊號。當微處理器i依脈衝訊號的有無而知 道到該交流脈衝信號檢測模組之狀態改變時，此時意味著 市電的電力供應狀態改變，因而對應產生一電力供應狀態 改變訊息並記錄此訊息。詳細來說，當交流脈衝信號檢測 杈組11由供電狀態變成停電狀態時，微處理器1由原本持 續接收到脈衝訊號變成不再接收到脈衝訊號，而可推斷出 為市電停電之電力供應狀態改變，進而產生並記錄_為佟 電訊息之電力供應狀態改變訊息。反之，當交流脈衝信號 檢測模組11由停電狀態恢復成供電狀態時，微處理器工會 接收到脈衝訊號開始饋入，而可推斷出為市電復電之電力 1280719 變’以產生並記錄—為復電訊息之電力供應狀 ，喊變訊息。另外，為避免因諸如電力供應不穩定盘交流 脈=號檢顏組—u本身的訊號延遲之類的因素影響微處 ^决判’因而本^例之微處理器12 —旦感測到脈衝訊 號不再輸人或者脈衝訊號開始輸人時，會等待數個脈衝週 期（例如15個脈衝週期，約〇 125 磕奋”认， ）後，以確定脈衝訊號 確只不再輸入脈衝訊號已穩定輸入時，始會產生對應 力供應狀態改變訊息。 “ 網路通訊模組13係受微處理器12控制，以即時將電 力供狀纽變訊息經公眾寬頻網路傳送予遠端控制中心3, :::控：中心3即時知曉用戶端的市電的電力供應狀態改 息，以儘速採取相關措施，例如當為停電訊息之電 '改變訊息’則可通知維修人員至用戶端進行維 G设电之工作，而控制中心一 ^ ό 更利用這些電力供應狀態改 ’交5fl息，來識別出與用戶 、用"而屬於同-區域之用戶端供電是 否發生改變，而可快速判斷 停電事故，進而可決定出唯事件或為大規模 疋出、准修人貝應前往的維修地點；反 之;當為復電訊息之電力供應狀態改變訊息時，控制中心3 ^己:此用戶端之復電訊息’以更新其原本處於停電狀態 二錄’便於管控人員即時瞭解各用戶端之供電狀態。本 例之網路通訊模組Π在g 士 用來連線公眾寬頻網路2公眾寬頻網路數據機131， 予控制中心3。、以將電力供應狀態改變訊息上傳 再者’本例中的公眾寬頻網路數據機⑶可應用用戶 1280719 既有的公眾寬頻網路數據機，或者若用戶端無此數據機， 則此新增之公眾寬頻網路數據機除可用來傳送電力供應狀 態改變訊息外，亦可供用戶用來執行其他需連線上公取寬 頻網路2的額外功能。 另外，為了方便可利用既有的公眾寬頻網路數據機ΐ3ι 或供用戶他用，本例中設^公眾寬頻網路數㈣i3i為獨 立的機盒，將檢測裝置！的剩餘構件整合於另一機盒内。 再者為了讓微處理器12與公眾寬頻網路數據機i3i間的 ^號傳輸距離可依使用者需求而適時加長，本例之網路通 機m η t具有㈣微處判12與公眾寬頻網路數據 間的通訊介面⑴，將微處理器12之數位訊 ^ -S-4S5 、'罔路傳迗至公眾寬頻網路數據 網路之数賴131。如此，由於RS-485 ^ ^輸出輸入端具備一定柏ρ 抗雜訊能力極佳，而力雜W力設計’通信 達12 〇強可*度，且通信有效距離長度可 眾寬頻以1 ^部分構件之機盒與公 依使用者需要= 離可在訊號品質維持-定下 要而5周整兩者間的距離。 電源模組14至少且古 _ 動所需之^ 人、有—電池⑷以供應檢測裝置i作 1而之电力，使網路 改變訊息傳遞予控制中\ 可即日'將電力供應狀態 交直流轉換器二 本例中電源模，组14更具有- 係可於市電正# “開關單70 143。此交直流轉換器142 置1作動所·、應日”將市電轉換成直流電供應檢測裝 "之電力。開關單元⑷係串接於電池141之 10 1280719 電源輪出側並受微處理器12控制而啟閉。開關單元⑷在 市電正常供應時會開路，使電池電力斷開，而由交直流轉 換器142來供應檢測裝置1作動所需之電力；而當停電（市 電停止供應）時，微處理器12會令開關單元143閉路而使電 池141可輸出電力來供應檢測裝置i作動所需之電力。本 例之開關單元143為一電驛開關。 、、另外’為了避免時常更換電池141的不便，本例之電 池141更可疋一可充電電池，而檢測裝置丄更包括一連接 電池⑷與微處理器12之電力檢測模組15與—連接交直 流轉換器M2、電池141與微處理器12之充電模組16。電 檢測模組15係谓測為可充電電池之電ί也141輸出電力的 ^ L並將為类員比#就的電壓值轉換成數位信號後傳輸予 微處理器12。微處理器12依照電力檢測模組_輸入之 電池⑷的電壓值高低來採取適當程序。充電模組16係應 用交直流轉換器、142輸出的直流電來對電池i4i充電，其 充，式至少具有快充與慢充兩種，依微處理器12控制來 決定。 …右方、市電正吊供應時，微處理器12判斷出電池141之 電壓值低於-預設電隸（即預設電力值）時，例如復電時， 4處理的12令充電模組16以快充模式對電池⑷充電， '速補電池141之電力。倘若微處理器12判斷出電池 之電[值不低於預設電壓值時，微處理器、U令充電模 組16對電池141慢充，以持續維持電池⑷的電力。充電 、Μ於不同拉式下以不同的電流量來對電池141充電。 1280719 類/由於杈測裝置1内各構件作動所需之電壓與電力種 頬可能不同，例如交流脈衝信號檢測模組11與微處理器12 斤而之電力為之直流電，而公眾寬頻網路數據機 1需不同電壓之交流電，因而本例之電源模組14中更具 •、/、凋I電壓值與可將直流電轉換成交流電之電壓單元（ 回未示）以應付檢測裝置1内各構件所需不同電力之需 求。 據則所述，本發明中利用交流脈衝信號檢測模組11隨 市電的供給來對應產生脈衝訊號，使微處理器12可利㈣ 測脈衝訊號的有無來判斷電力供應狀態是否產生變化，並 於電力供應狀態改變時，經網路通訊模組13連線公眾寬頻 網路2’將電力供應狀態改變訊息即時回報予控制中心3, 使控制中A 3可即時瞭解用戶端情況而採取適當程序處理 ’以達到利用公眾寬頻網路2即時回報電力供應狀態改變 訊息之創作目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 月匕以此限疋本發明貫施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本發明具回報功能之電力供應狀態改變檢測裝 置應用於電力檢測系統内的示意圖；及 圖2是圖1中檢測裝置的較佳實施例的方塊圖。 12 1280719 【主要元件符號說明】 1檢測裝置 10電力線 11交流脈衝信號檢測模組 12微處理器 1 3網路通訊模組 1 3 1公眾寬頻網路數據機 132 RS-485通訊介面 14電源模組 141可充電電池 142交直流轉換器 143開關單元 15電力檢測模組 16充電模組 2公眾寬頻網路 3控制中心 131280719 IX. Description of the invention: [Technical field to which the invention belongs] This month has a power supply detection device with a return function, in particular, a kind of return through the public broadband network: the change of the state of the land state to the control center Electrical change detection device with return function. Knife should be sad [previous technology] IW equipment automation and electrification 'dependence on power and the longest power outage time, the more inconvenient to the user, and even cause more mussels lost so 'when the power load occurs In the event of a fault (such as a power outage), immediate return, fault message, to find out the fault point in the shortest time to be excluded, = one of the efforts of the various power companies in the world. At present, the foreign power company is equipped with a power-off detector or a smart meter with power-off detection function at the user end. When the fault occurs, the power-off detector or the smart meter with power-off detection function is transmitted back through the telephone network. In the event of a power failure, the Power VIII can infer the faulty user by phone number, so that the maintenance personnel can quickly and efficiently handle the user's troubles, such as the US North Carolina Power Company (CP&L), the US Pacific Gas and the Power Company ( Κ5&Ε), Idaho Power Company (Idaho p0we_American Consumer Power Company (c〇nsumer ρ〇.) all use similar power outage detection methods. Therefore, the power outage detection device currently has no power outage message. The network returns the power company, and the power-off detection terminal needs to additionally set up a -signal transmission module to convert the signal into a signal suitable for the transmission of the aforementioned transmission line. However, with the popularization of the Internet, almost every household can connect 1280719 The Internet is connected and the bandwidth is increasing year by year. Therefore, if the power failure is checked, the Internet will be used to report the power outage message to the power. Therefore, the use of the user's existing network communication device to report the power outage message through the Internet will effectively detect the power outage status. Currently, the hardware network architecture of the Internet is mainly the public broadband network. Therefore, the object of the present invention is to provide a power supply state change detecting device with a return function to achieve the effect of utilizing a public broadband network to instantly return a power supply state change message. The supply state change detecting device is configured to detect a power supply state of a power line on a supply side of a customer terminal, and report the power supply state to a remote control when the power supply state is detected to be changed. The utility model comprises an AC pulse signal detecting module, a microprocessor, a network communication module and a power module; wherein the AC pulse signal detecting module is connected to the power line, and enters a 2-electric state with the mains feeding Corresponding output-pulse signal, (4) the mains is no longer fed and owed - such as the electric 嘘 to stop outputting the pulse signal The microprocessor is used for the overall operation of the detecting device, and the microprocessor is connected to the AC pulse detecting device to receive the pulse signal. When the state of the AC measuring f group changes, a power supply state change is correspondingly generated. The message hai, the 通路通减组 is connected to the microprocessor and controlled by the microprocessor to transmit the power supply status change message to the control via the public broadband network: the center; and the power module has a The battery is used to supply the power required for the detection. 6 1280719 The power of the present invention can provide a power supply state change detecting device with a return function, which can not only effectively detect the change of the power supply state of the user but also utilize the public broadband The network quickly reports back to the control center so that the control center can actively handle the change of the user's power supply status as soon as possible. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are in conjunction with the following reference drawings. A detailed description of a preferred embodiment will be further explained. Referring to Fig. 1, a preferred embodiment of the power supply state change detecting apparatus 1 of the present invention is provided at each user end of the power company, and a control center 3 is provided at the power company end. The control center 3 of this example can have some power management programs for a servo, such as a power-down processing program. In this way, once the power supply status of the user terminal changes, the user terminal can report the power supply status change message of the user terminal to the control center through the public broadband network 2, and the control center 3 can process the data immediately. For example, dispatch maintenance personnel as soon as possible. As shown in FIG. 2, the detecting device of the present invention includes an AC pulse signal detecting module 11, a microprocessor 12, a network communication module 13, and a power module 14. The AC pulse signal detecting module n of this example is connected to the power line after the meter to capture the AC signal of the commercial power. AC pulse signal detection module * Change to power supply or a power outage. When the power supply of the user terminal is positive = that is, the power is normally supplied, the utility power will feed the AC pulse JJ枳, 'and 11 along the power line 10, and the AC pulse signal detecting module 11 enters the state of the power supply 1280719 to capture The AC signal of the mains is converted into a pulse signal for output to the microprocessor 12. On the other hand, when the power supply is interrupted (i.e., the power is turned off), the AC pulse signal detecting module 11 is switched from the power supply state to the power-off state, and the output pulse signal is suspended because the AC signal of the commercial power can no longer be retrieved. In the power supply state of the AC pulse signal detection module u of this example, the mains frequency 6 〇 Hz is converted into a positive half wave signal of the frequency blue 2 via a bridge half-wave rectification circuit (not shown), and then the light is combined. The device does not generate a pulse digital signal at the zero point, and then generates a reverse pulse at the collector via a transistor (not shown), and converts it into a digital pulse signal y with a frequency of 120 Hz to input the pulse signal to the micro-...2. Therefore, the AC pulse signal detecting mode 11 can output the pulse signal to the microprocessor 12. The processing state 12 is used to control the overall operation of the detecting device. Therefore, the processor 12 is connected to the AC pulse signal detection. The module u, the network communication module 13 and the power module 14. The microprocessor i receives the pulse signal from the AC pulse signal detection module 11. When the microprocessor i knows the AC pulse signal according to the presence or absence of the pulse signal When the state of the detection module changes, this means that the power supply state of the utility power changes, and accordingly a power supply state change message is generated and the message is recorded. In detail, when the AC pulse signal is detected When the group 11 changes from the power supply state to the power failure state, the microprocessor 1 continuously receives the pulse signal and becomes no longer receiving the pulse signal, but can infer that the power supply state change for the mains power failure, and then generate and record _ for the power The power supply status change message of the message. Conversely, when the AC pulse signal detection module 11 is restored to the power supply state from the power failure state, the microprocessor union receives the pulse signal and starts feeding, and can infer that the power is restored to the mains power 1280719. Change 'to generate and record' - the power supply of the re-sale message, shouting the message. In addition, in order to avoid the influence of factors such as the power supply instability, the signal delay, etc. Therefore, the microprocessor 12 of this example will wait for several pulse periods (for example, 15 pulse periods, about 磕125 —) when it senses that the pulse signal is no longer input or the pulse signal starts to input. After the "recognition," to determine that the pulse signal does not only input the pulse signal has been stabilized input, the stress supply state change message will be generated. The network communication module 13 is controlled by the microprocessor 12 to instantly transmit the power supply information to the remote control center 3 via the public broadband network. ::: Control: The center 3 immediately knows the power supply of the commercial power of the user terminal. The status changes, so as to take relevant measures as soon as possible, for example, when the power change message for the power outage message, the maintenance personnel can be notified to the user to perform the work of maintaining the power, and the control center uses the power supply status. Change the '55% interest rate to identify whether the user's power supply with the user, using " and the same-area is changed, but can quickly determine the power outage accident, and then can decide the event or for large-scale exit, quasi-repair The repair location where the person should go to; otherwise; when the power supply status change message for the re-sale message, the control center 3 ^: the re-sale message of the user terminal 'to update the original power-off state two records' to facilitate the control personnel Instantly understand the power status of each client. The network communication module of this example is used to connect the public broadband network 2 public broadband network data unit 131 to the control center 3. In order to upload the power supply status change message, the public broadband network data machine (3) in this example can apply the user 1280719 to the existing public broadband network data machine, or if the user terminal does not have the data machine, this new In addition to transmitting the power supply status change message, the public broadband network data machine can also be used by users to perform other functions that need to be connected to the public broadband network 2 . In addition, for the convenience of the existing public broadband Internet data modem ΐ3ι or for users to use, in this case set the public broadband network number (four) i3i as an independent box, will detect the device! The remaining components are integrated into another box. In addition, in order to make the transmission distance between the microprocessor 12 and the public broadband network data machine i3i can be lengthened according to the user's demand, the network communication m η t of this example has (4) micro-judgment 12 and public broadband. The communication interface between the network data (1), the digital signal of the microprocessor 12 ^ - S-4S5, 'the road to the public broadband network data network number 131. In this way, because the RS-485 ^ ^ output input has a certain anti-noise ability, the power is mixed, the communication is up to 12, and the effective distance of the communication can be 1 ^ part. The box of the component and the user depend on the user's needs = the distance between the signal quality can be maintained and the distance between the two is 5 weeks. The power module 14 at least, and the battery (4) is supplied with the power of the detecting device i, so that the network change message is transmitted to the control, and the power supply state can be converted to AC/DC. In the second example, the power module, the group 14 has a - system can be used in the mains # "switch single 70 143. This AC-DC converter 142 is set to act, the day to convert the mains into a DC supply detection device" Electricity. The switch unit (4) is connected in series to the 10 1280719 power supply output side of the battery 141 and is controlled to open and close by the microprocessor 12. The switch unit (4) opens an open circuit when the mains supply is normal, so that the battery power is disconnected, and the AC/DC converter 142 supplies the power required for the detecting device 1 to operate; and when the power is cut off (the mains supply is stopped), the microprocessor 12 The switch unit 143 is closed so that the battery 141 can output electric power to supply the electric power required for the detection device i to operate. The switch unit 143 of this example is an electric switch. In addition, in order to avoid the inconvenience of replacing the battery 141 from time to time, the battery 141 of the present example further includes a rechargeable battery, and the detecting device further includes a power detecting module 15 connected to the battery (4) and the microprocessor 12. The AC/DC converter M2, the battery 141 and the charging module 16 of the microprocessor 12. The electric detecting module 15 is configured to measure the electric power of the rechargeable battery 141 and output the electric power to the microprocessor 12 by converting the voltage value of the class member to #. The microprocessor 12 takes an appropriate procedure in accordance with the voltage level of the battery (4) input by the power detection module_. The charging module 16 charges the battery i4i by using the AC/DC converter and the DC output of the 142. The charging mode has at least two types of fast charging and slow charging, and is determined by the microprocessor 12 control. When the right side and the mains supply are being supplied, the microprocessor 12 determines that the voltage value of the battery 141 is lower than the preset electric power (ie, the preset power value), for example, when the power is restored, the 4 processing 12-modulation charging module 16 Charge the battery (4) in the fast charge mode, and 'supplement the power of the battery 141. If the microprocessor 12 determines that the battery is powered [value is not lower than the preset voltage value, the microprocessor, U causes the charging module 16 to slowly charge the battery 141 to continuously maintain the power of the battery (4). Charging, charging the battery 141 with different current amounts under different pull types. 1280719 Class / The voltage and power type required for the operation of each component in the test device 1 may be different, for example, the AC pulse signal detection module 11 and the microprocessor 12 kilograms of power are DC, and the public broadband network data The machine 1 needs alternating current of different voltages, so the power module 14 of this example has more voltage values of •, /, and I can convert DC power into alternating voltage (not shown) to cope with various components in the detecting device 1 . The need for different power needs. According to the present invention, in the present invention, the AC pulse signal detecting module 11 generates a pulse signal correspondingly with the supply of the commercial power, so that the microprocessor 12 can determine whether the power supply state changes due to the presence or absence of the pulse signal, and When the power supply status changes, the network communication module 13 connects the public broadband network 2' to immediately report the power supply status change message to the control center 3, so that the A 3 in the control can immediately understand the situation of the user and take appropriate procedures. 'To achieve the purpose of using the public broadband network 2 to immediately return the power supply status change message. However, the above is only the preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the simple equivalent of the scope of the patent application and the description of the invention. Variations and modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the application of a power supply state change detecting device of the present invention to a power detecting system; and Fig. 2 is a block diagram showing a preferred embodiment of the detecting device of Fig. 1. 12 1280719 [Description of main components] 1 detection device 10 power line 11 AC pulse signal detection module 12 microprocessor 1 3 network communication module 1 3 1 public broadband network data machine 132 RS-485 communication interface 14 power module 141 rechargeable battery 142 AC/DC converter 143 Switching unit 15 Power detection module 16 Charging module 2 Public broadband network 3 Control center 13