201041333 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種網路供電系統之故障回復方法，尤指 一種排除受電裝置之故障問題之方法。 【先前技術】 [0002] 近年來乙太網路供電（Power Over Ethernet，POE) 之技術正加速發展’乙太網路供電技術係可利用一條乙 太網路線傳遞資料與電力。 0 [0003] 習知上利用乙太網路供電技術時’可將供電設備連接大 量之受電設備’例如網路攝影機。系統架設者可隨意將 受電裝置擺放所欲擺設之位置，而不需顧慮附近是否有 電源插座，或是另外設置電源線連接該受電:設備，可大 幅減少受電裝置另外佈設電源線路之成丰。 [0004]但是由於乙太網路供電技術並無法偵測受電裝置是否當 機或是因其它因素導致受電裝置處於無反皋狀態，除非 有人員在場監測或正在遠端操作使用該受電裝置，否則 〇 紐做即時性之故障排除，進而_㈣上之缺失。 【發明内容】 [0005] 098115064 由於習知之乙太網路供電技術係利用受電裝置連接至乙 太網路線時產生之電路迴路，則貞測該受«置是否連 接於爻電裝置上。因此無法對於該受電裝置是否當機 (shut down)或故障作一偵測。因此本發明之目的係提 供一種網路供電系統之故障回復方法，其利用供電裝置 持續傳送一檢測訊號於受電裝置，當受電裝置無法依據 該檢測訊號Θ傳-回覆職時，該供電裝置停止供應該 表單編號A0101 第3頁/共20頁 〇c 201041333 受電裝置電力，並於一等待時間後重新提供該受電裝置 之電力，藉以排除該受電裝置之故障問題。 [0006] 為了達成上述之目的，本發明係提供一種網路供電系統 之故障回復方法，係包括下列步驟：經由一供電裝置傳 送電力於一受電裝置。經由供電裝置透過該網路傳輸線 傳送一檢測訊號於該受電裝置。當該供電裝置於一設定 時間未收到該受電裝置回覆之回覆訊號時，該供電裝置 停止傳送電力於該受電裝置。最後，經由該供電裝置再 次傳送電力於該受電裝置，以回復該受電裝置之運作。 [0007] 為了達成上述之目的，本發明另提供一種網路供電系統 之故障回復方法，係包括下列步驟：經由一供電裝置透 過一網路傳輸線傳送電力於一受電裝置之次供電裝置。 當次供電裝置接收該電力後，透過一電力線傳該電力於 該次受電裝置。 [0008] 經由供電裝置透過該網路傳輸線傳送一檢測訊號於該受 電裝置之次供電裝置。當該次供電裝置接收該檢測訊號 C.) 後，經由一訊號傳輸線傳輸於該檢測訊號於該次受電裝 " 置。當該供電裝置於一設定時間未收到該次受電裝置回 覆之回覆訊號時，該供電裝置停止傳送電力於該受電裝 置。最後，經由該供電裝置再次傳送電力於該受電裝置 ，以回復該次受電裝置之運作。 [0009] 綜上所述，本發明之網路供電系統之故障回復方法，係 發出一檢測訊號於受電裝置，由於受電裝置需處於一正 常運作狀態，才能處理該檢測訊號，進而依據該檢測訊 098115064 表單編號A0101 第4頁/共20頁 0982025398-0 201041333 號發出一回覆訊號。因此供電裝置可即時的偵測出受電 裝置是否處於一當機或故障狀態。 [0010] 另外，當供電裝置無法接收到回覆訊號時，即可停止傳 送電力於該受電裝置，並於一等待時間後再次傳送電力 於該受電裝置，藉此受電裝置之重新啟動以排除該受電 裝置之當機或故障狀態。因此本發明不需有人員在場監 測或正在遠端或進端使用該受電裝置，可即時排除受電 裝置之當機或是因其它因素導致受電裝置處於無反應狀 ^ 態等故障狀態。 ❹ [0011] 關於本發明之優點與精神可以藉由以下的發明詳述及所 附圖式得到進一步的瞭解。 【實施方式】 [0012] 請參閱第一圖，係本發明網路供電系統之第一實施例之 系統架構圖。該網路供電系統1 000係包含一供電裝置 100(Power Source Equipment, PSE)與複數個受電 裝置200 (Powered Device，PD)。201041333 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a method for fault recovery of a network power supply system, and more particularly to a method for eliminating a problem of a failure of a power receiving device. [Prior Art] [0002] In recent years, the technology of Power Over Ethernet (POE) is accelerating. The Ethernet power supply technology system can transmit data and power using an Ethernet route. 0 [0003] It is customary to use a power over Ethernet technology to connect a power supply device to a large number of powered devices, such as a webcam. The system erector can freely place the power receiving device in the desired position without worrying about whether there is a power outlet nearby, or separately set a power cable to connect the power receiving device: the device can greatly reduce the power supply line of the power receiving device. . [0004] However, since the Ethernet power supply technology cannot detect whether the power receiving device is down or the power receiving device is in a non-reverse state due to other factors, unless a person is present to monitor or is remotely operating the power receiving device, Otherwise, the new one will be trouble-shooting, and then _(four) will be missing. SUMMARY OF THE INVENTION [0005] 098115064 Since the conventional Ethernet power supply technology utilizes a circuit loop generated when a power receiving device is connected to an Ethernet route, it is determined whether the received device is connected to the power storage device. Therefore, it is impossible to detect whether the power receiving device is shut down or malfunction. Therefore, the object of the present invention is to provide a fault recovery method for a network power supply system, which continuously transmits a detection signal to a power receiving device by using a power supply device. When the power receiving device fails to transmit a reply signal according to the detection signal, the power supply device stops supplying. Form No. A0101 Page 3 of 20 〇c 201041333 The power of the powered device is re-provided by the power of the powered device after a waiting time, thereby eliminating the problem of the failure of the powered device. In order to achieve the above object, the present invention provides a method for fault recovery of a network power supply system, comprising the steps of: transmitting power to a power receiving device via a power supply device. A detection signal is transmitted to the power receiving device via the network transmission line via the power supply device. When the power supply device does not receive the reply signal from the power receiving device for a set time, the power supply device stops transmitting power to the power receiving device. Finally, power is again transmitted to the power receiving device via the power supply device to restore the operation of the power receiving device. In order to achieve the above object, the present invention further provides a method for fault recovery of a network power supply system, comprising the steps of: transmitting power to a secondary power supply device of a power receiving device via a power transmission device via a power transmission line. After receiving the power, the secondary power supply device transmits the power to the secondary power receiving device through a power line. [0008] transmitting a detection signal to the secondary power supply device of the power receiving device via the network transmission line via the power supply device. After receiving the detection signal C.), the power supply device transmits the detection signal to the power receiving device via a signal transmission line. When the power supply device does not receive the reply signal of the power receiving device reply for a set time, the power supply device stops transmitting power to the power receiving device. Finally, power is again transmitted to the power receiving device via the power supply device to restore the operation of the secondary power receiving device. [0009] In summary, the method for fault recovery of the network power supply system of the present invention sends a detection signal to the power receiving device, and the power receiving device can be processed according to the detection signal according to the normal operation state of the power receiving device. 098115064 Form number A0101 Page 4 / Total 20 pages 0982025398-0 201041333 Issue a reply signal. Therefore, the power supply device can instantly detect whether the power receiving device is in a crash state or a fault state. [0010] In addition, when the power supply device cannot receive the reply signal, the power transmission device can be stopped from being transmitted to the power receiving device, and the power receiving device can be transmitted again after a waiting time, thereby restarting the power receiving device to exclude the power receiving device. The downtime or fault condition of the device. Therefore, the present invention does not require personnel to be on site to monitor or use the power receiving device at the far end or the end, and can immediately eliminate the failure state of the power receiving device or cause the power receiving device to be in an unresponsive state due to other factors. The advantages and spirit of the present invention will be further understood from the following detailed description of the invention. [Embodiment] [0012] Please refer to the first figure, which is a system architecture diagram of a first embodiment of a network power supply system of the present invention. The network power supply system 1000 includes a power source device (PSE) and a plurality of power devices (PD).
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[0013] 該供電裝置100係可為一具有供電功能之路由器、閘道器 、數據機或IP分享器，乙太網路交換機或乙太網路集線 器等裝置，但不以上述為限，其可將電力（power)與資 料（data)透過一網路傳輸線L1傳輸於一個受電裝置200 。該網路傳輸線L1係可為一乙太網路線，其可為具有RJ-45接頭之雙絞線或是同軸電纜。 [0014] 該供電裝置100係可包含一主網路模組110、一電源模組 120、與一網路供電模組130。 098115064 表單編號A0101 第5頁/共20頁 0982025398-0 201041333 [0015] $主網路模組llQ係可辆接於網際網路〖I (於第—圖中標 示）或區域網路等網路，以透過網路傳輸資料於該受電丁 裝置2〇〇。該電源模組12〇係可接受電力ρι以供應該供電 裝董100本身及該受電裝置200所需之電力ρι。該網路供 電楔組1 3 0係可麵接於該主網路模組！ i 〇與該電源模組 12〇，並可插接多條網路傳輪線L1。該網路模組係可 ^別接收由該主網路模組110與該電源模組12〇所傳送之 賁料與電力P1，並透過該網路傳輸線“傳輸於該受電裝 置200 。 、 [0016] 該爻電裝置200係可為一具有網路通訊功能之受電裝置 〇其可為一網路攝影機（I.P camera)、..網路電話機 (V〇Ip phone)、無線網路基地台（Wireiess Ap)、全 球互通微波存取設備（WiMAX)等裝置，但不以上述之裝置 為限。 [0017] 邊凳電裝置200係可包含一受電網路模組21〇與一處理模 纽220。該受電網路模組“ο係用以連接該網路傳輸線li ’以從該網路傳輸線L1接收電力η與資料。 [_ 4處理模組22〇與該受電網路模組21()耗接，並用以從該 又電網路模組210接收與處理該資料。該處理模組2〇〇係 可由中央處理器（CPU )與其相關電路與晶片所構成，其 可針對該欠電裝置2 〇 〇之型態與功能，作不同之設計該 處理模組2 0 0係可為一習知技術，並非本發明之重點，在 此不作累述。 [_] 4參’二@ ’係本發⑽路供電线之故障回復方法 098115064 表單編號A0101 第6頁/共20頁 0982025398-0 201041333 [0020] Ο [0021] [0022] ❹ [0023] 之第一實施例之流程圖，可經由下列步驟實施本發明之 故障回復方法，下列之元件標號請參閱第_圖。 首先，使用者可將一受電裝置200連接該網路傳輸線u， 以與該供電裝置1〇〇耦接，並將該受電裝置200之電源開 啟此時依據電力P1於乙太網路（p〇wer Over Ethernet’ Ρ0Ε) 之技術 ，該供電裝置 1〇〇 會透過該網路傳輸 線L1產生一偵測電壓，以偵測該受電裝置2〇〇是否耦接於 该網路傳輸線L1，並控制網路供電模組13〇提供受電裝置 200所需之電力pi (步驟si 〇i)。 為了要檢測受電裝置200是否正常運作，經由供電裝置 100透過該網路傳輪線L1傳送一檢測訊號於該受電裝置 200，該檢測訊號係可為—網路封包，如ARp/RARp封包 或ICMP封包（步驟si〇3h 於本實施例中該檢測訊號係可為一網路封包，該受電裝 置200之受電網路模組21〇接收該檢測訊號後，必須處於 一正常運作狀態才能啟動處理模組220將該檢測訊號解析 ’並依據檢測訊號回覆一回覆資訊於該供電裝置1〇〇 ’該 回覆資訊亦可為一網路封包，如習知技術中之ARP/RARP 封包或ICMP封包。 因此該供電裝置1〇〇傳送—檢測訊號於該受電裝置2〇〇後 ，判斷疋否接收到對應於該檢測訊號之一回覆訊號，如 果該受電裝置200接收該檢測訊號後，係回覆一回覆訊號 於該供電裝置100，則代表該受電裝置2〇〇為一正常運作 狀態，則可於一預定時間後跳置步驟1〇3，以使該供電裝 098115064 表單編號A0101 第7頁/共20頁 0982025398-0 201041333 [0024] [0025] [0026] [0027] [0028] 置100不斷地檢測該受電裝置2〇〇是否處於一正常運作狀 態，該預定時間可為i毫秒等短暫之時間（步驟Sl〇5)。 當該供電裝置1〇〇於一設定時間後未收到該受電裝置2〇〇 回覆之回覆訊號時，則可代表該供電裝置1〇〇處於一故障 狀態。此時該供電裝置100停止傳送電力ρι於該受電裝置 2〇〇，以使該受電裝置200停止運作，該設定時間可為1至 3秒等短暫之時間（步驟S1 〇7)。 於一等待時間後，經由該供電裝置1〇〇再次傳送電力以於 該受電裝置200，以回復該受電裝置2〇〇之運作，該等待 時間設為5至15秒《由於該受電裝置2〇〇重新啟動，可排 除該受電裝置200之大部分之故障原因，此時該受電裝置 200應可回復至一正常運作狀態。 另由於該受電裝置200接收到電力P1後至啟動完成需一啟 動時間，其中該啟動時間可為10至3〇〇秒，依據不同之受 電裝置200而有不同之啟動時間。因此該供電裝置丨〇〇於 該啟動時，’即可至錄S1G3#送—檢測訊號於該受電裝置200，以檢測該受電裝董2〇〇之故障是否排除（ 步驟S109)。 若上述之方式無法使該受電裝置200恢復為一正常運作狀 態，則該供電裝置100可判斷於該供電裝置1〇()重新再次 傳送電力P1之一預定次數後，該供電裝置10〇發出一通知 資机於管理人貝，該通知資訊係可為_手機簡訊或—電 子郵件等資訊。 請參閱第三圖，係為本發明網路供電系統之第二實施例 098115064 表單編號A0101 第8頁/共20頁 0982025398-0 201041333 之系統架構圖。與第一實施例不同之處在於，該受電裝 置200a係包含一次供電裝置3〇〇與一次受電裝置4〇〇。該 次供電裝置綱㈣以連接該财傳輸線u，並將該網路 傳輸線L1所傳輸之電力ρ〗與資料，透過該次供電裝置 所包含之網路電源處理模組31〇分別透過一電力線L2與一 訊號傳輸線L3傳輸，該訊號傳輸線L3係可為一乙太網路 線。 [0029] 該次受電裝置400係可為一網路攝影機、網路電話機、無 ◎ 線網路基地台、全球互通微波存取設備。該次受電裝置 400係包含一受電模蠢1410、一網路模組420、與一處理 模組430。該受電模組410係接受該電力線L2所傳輸之電 力P1，§玄網路模組420係用以:接.收該訊號傳輸線[3所傳輸 之資料。 [0030] 睛參閱第四圖’係本發明網路供電系統之故障回復方法 之第二實施例之流程圖。下列之元件標號請參閱第三圖 〇 〇 [0031] 與第一實施例不同之處在於，經由一供電裝置1 透過一 網路傳輸線L1傳送電力P1於一受電裝置2〇〇之次供電裝置 300 (步驟S201 )。 [0032] 當供電裝置100接收該電力P1後，透過_電力線L2傳該電 力P1於該次受電裝置400 (步驟S203 )。 [0033] 經由供電裝置100透過該網路傳輸線L1傳送一檢測訊號於 該受電裝置200之次供電裝置300 (步驟S205 )。 [0034] 當該次供電裝置300接收該檢測訊號後，經由一訊號傳輸 098115064 表單編號八_ $ 9頁/共20頁 n_ 201041333 線L3傳輸於該檢測訊號於該次受電裝置4〇〇 (步驟S2〇7 )° [0035]该供電裝置1 0 0判斷是否接收到一回覆訊號，當該供電裝 置100接收到回覆訊號時，回到步驟S207 (步驟S209 ) [0036] 當該供電裝置100於一設定時間未收到該次受電裝置4〇〇 回覆之回覆訊號時，該供電裝置1〇〇停止傳送電力ρι於該 受電裝置200 (步驟S211)。 [0037] 經由該供電裝置1〇〇再次傳送電力P1於該受電裝置2〇〇， 以回復該次受電裝置400之運作，經由一啟動時間後回至 步驟S207 ’以繼續偵測該受電裝置2〇〇 (步驟S2i3 )。 [0038] 如同第一實施例，若上述之方式無法使該次受電裝置4〇〇 恢復為一正常運作狀態，則該供電裝置1〇〇可於該供電裝 置100重新再次傳送電力？1之一預定次數後，經由該供電 褒置1 00發出一通知資訊於管理人員’。 [0〇39]綜上所述，本發明之網路供電系統〇〇之故障回復方法 ’係發出一檢測訊號於受電裝置2〇〇，由於受電裝置2〇〇 需處於一正常運作狀態’才能處理該檢測訊號，進而依 據該檢測訊號發出一回覆訊號。因此供電裝置1〇〇可即時 的偵測出受電裝置200是否處於一當機或故障狀態。 [0040] 另外’當供電裝置1 〇 〇無法接收到回覆訊號時，即可停止 傳送電力P1於該受電裝置200，並於一等待時間後再次傳 送電力P1於該受電裝置200，藉此受電裝置200之重新啟 動以排·除該受電裝置2〇〇之當機或或是因其它因素導致受 098115064 表單編號A0101 第10頁/共20頁 0982025398-0 201041333 電裝置處於無反應狀態等故障狀態。因此本發明不需有 人員在場監測或正在使用該受電裝置200，可即時排除受 電裝置200之當機或故障狀態。 [0041] ❹ [0042] [0043] [0044] ❹ [0045] [0046] [0047] [0048] [0049] [0050] 藉由以上較佳具體實施例之詳述，係希望能更加清楚描 述本發明之特徵與精神，而並非以上述所揭露的較佳具 體實施例來對本發明之範疇加以限制。相反地，其目的 是希望能涵蓋各種改變及具相等性的安排於本發明所欲 申請之專利範圍的範疇内。 【圖式簡單說明】 第一圖係本發明網路供電系統之第一實施例之系統架構 圖； 第二圖係本發明網路供電系統之故障回復方法之第一實 施例之流程圖； 第三圖係為本發明網路供電系統之第二實施例之系統架 構圖，以及 乂 第四圖係本發明網路供電系統之故障回復方法之第二實 施例之流程圖。 【主要元件符號說明】 網路供電系統1 0 0 0 供電裝置100 主網路模組110 電源模組12 0 網路供電模組130 098115064 表單編號A0101 第11頁/共20頁 0982025398-0 201041333 [0051] 受電裝置200、200a [0052] 受電網路模組210 [0053] 處理模組220 [0054] 次供電裝置300 [0055] 網路電源處理模組31 0 [0056] 次受電裝置400 [0057] 受電模組410 [0058] 網路模組4 20 [0059] 處理模組430 [0060] 網路傳輸線L1 [0061] 電力線L2 [0062] 訊號傳輸線L3 [0063] 網際網路11 [0064] 電力P1 098115064 表單編號A0101 第12頁/共20頁 0982025398-0[0013] The power supply device 100 can be a power supply function router, gateway, data machine or IP sharer, Ethernet switch or Ethernet hub, etc., but not limited to the above, Power and data can be transmitted to a power receiving device 200 through a network transmission line L1. The network transmission line L1 can be an Ethernet route, which can be a twisted pair cable or a coaxial cable with an RJ-45 connector. [0014] The power supply device 100 can include a main network module 110, a power module 120, and a network power supply module 130. 098115064 Form No. A0101 Page 5 / Total 20 pages 0982025398-0 201041333 [0015] $ main network module llQ can be connected to the Internet [I (in the figure) or regional network) To transmit data to the power receiving device through the network. The power module 12 can receive power ρι to supply the power supply dong 100 itself and the power ρι required by the power receiving device 200. The network power supply wedge group 130 can be connected to the main network module! i 〇 and the power module 12〇, and can be connected to multiple network transmission lines L1. The network module can receive the data and power P1 transmitted by the main network module 110 and the power module 12, and transmit the power to the power receiving device 200 through the network transmission line. 0016] The power-receiving device 200 can be a power-receiving device with a network communication function, which can be an IP camera, a V-Ip phone, a wireless network base station ( Wireiess Ap), Global Interoperability for Microwave Access (WiMAX), etc., but not limited to the above devices. [0017] The side bench electrical device 200 can include a power grid module 21 and a processing module 220 The grid circuit module "o is used to connect the network transmission line li" to receive power η and data from the network transmission line L1. The processing module 22 is consuming the same with the power grid module 21 () and is used to receive and process the data from the grid circuit module 210. The processing module 2 can be composed of a central processing unit (CPU) and its associated circuits and chips. The processing module can be designed differently for the type and function of the underlying device 2 The system can be a conventional technique and is not the focus of the present invention and will not be described herein. [_] 4 ' '二@ ' 致本本(10) road power supply line failure recovery method 098115064 Form No. A0101 Page 6 / Total 20 pages 0992025398-0 201041333 [0020] Ο [0022] [0023] The flowchart of the first embodiment can implement the fault recovery method of the present invention through the following steps. For the following component numbers, refer to the figure. First, the user can connect a power receiving device 200 to the network transmission line u to be coupled to the power supply device 1 , and turn on the power of the power receiving device 200 according to the power P1 on the Ethernet network (p〇 The technology of the wer Over Ethernet' Ρ0Ε), the power supply device 1 generates a detection voltage through the network transmission line L1 to detect whether the power receiving device 2 is coupled to the network transmission line L1, and the control network The road power supply module 13 〇 provides the power pi required by the power receiving device 200 (step si 〇 i). In order to detect whether the power receiving device 200 is operating normally, a detection signal is transmitted to the power receiving device 200 via the network transmission line L1 via the power supply device 100, and the detection signal may be a network packet, such as an ARp/RARp packet or an ICMP. The packet (step si〇3h) in the embodiment, the detection signal can be a network packet, and the power receiving device 200 receives the detection signal after receiving the detection signal, and must be in a normal operation state to start the processing mode. The group 220 parses the detection signal and replies to the power supply device according to the detection signal. The reply information may also be a network packet, such as an ARP/RARP packet or an ICMP packet in the prior art. The power supply device transmits a detection signal to the power receiving device 2, and determines whether a response signal corresponding to one of the detection signals is received. If the power receiving device 200 receives the detection signal, the system responds with a reply signal. In the power supply device 100, if the power receiving device 2 is in a normal operating state, the step 1〇3 can be skipped after a predetermined time to make the power supply device 0981 15064 Form No. A0101 Page 7 / Total 20 Page 0992025398-0 201041333 [0024] [0028] [0028] 100 is continuously detected whether the power receiving device 2 is in a normal operating state, the reservation The time may be a short time such as i milliseconds (step S1〇5). When the power supply device 1 does not receive the reply signal of the power receiving device 2 after a set time, it may represent the power supply device 1 The power supply device 100 stops transmitting the power ρι to the power receiving device 2〇〇 to stop the power receiving device 200, and the set time may be a short time such as 1 to 3 seconds (step S1). 〇7). After a waiting time, power is again transmitted to the power receiving device 200 via the power supply device 1 to restore the operation of the power receiving device 2, the waiting time is set to 5 to 15 seconds. When the power receiving device 2 is restarted, the fault cause of most of the power receiving device 200 can be eliminated, and the power receiving device 200 should be able to return to a normal operating state. Further, since the power receiving device 200 receives the power P1 and starts to complete. need The startup time, wherein the startup time can be 10 to 3 sec., according to different power receiving devices 200, different startup time. Therefore, when the power supply device is at the startup, it can be sent to S1G3#. The detection signal is transmitted to the power receiving device 200 to detect whether the fault of the power receiving device is excluded (step S109). If the above manner fails to restore the power receiving device 200 to a normal operating state, the power supply device 100 can determine After the power supply device 1 () retransmits the power P1 for a predetermined number of times, the power supply device 10 sends a notification to the administrator, and the notification information may be information such as a mobile phone newsletter or an email. Please refer to the third figure, which is a system architecture diagram of a second embodiment of the network power supply system of the present invention. 098115064 Form No. A0101 Page 8 of 20 0982025398-0 201041333. The difference from the first embodiment is that the power receiving device 200a includes the primary power supply device 3A and the primary power receiving device 4A. The power supply device (4) is connected to the financial transmission line u, and the power ρ and data transmitted by the network transmission line L1 are transmitted through a power line L2 included in the power supply device. It is transmitted with a signal transmission line L3, which can be an Ethernet route. [0029] The power receiving device 400 can be a network camera, a network telephone, a non-wire network base station, and a global interoperable microwave access device. The power receiving device 400 includes a power receiving module 1410, a network module 420, and a processing module 430. The power receiving module 410 receives the power P1 transmitted by the power line L2, and the stencil network module 420 is used to receive and transmit the data transmitted by the signal transmission line [3]. [0030] Referring to the fourth figure, a flow chart of a second embodiment of the method for failing over the network power supply system of the present invention. The following components are referred to the third figure. [0031] The difference from the first embodiment is that the power supply device 1 transmits the power P1 to the secondary power supply device 300 of the power receiving device 2 via a network transmission line L1. (Step S201). When the power supply device 100 receives the power P1, the power P1 is transmitted to the secondary power receiving device 400 through the power line L2 (step S203). [0033] A power supply device 300 transmits a detection signal to the secondary power supply device 300 of the power receiving device 200 via the network transmission line L1 (step S205). [0034] After the power supply device 300 receives the detection signal, the transmission number 098115064 is transmitted via a signal form _$9 page/20 pages n_201041333 line L3 is transmitted to the power receiving device 4〇〇 (step S2〇7)° [0035] The power supply device 100 determines whether a reply signal is received, and when the power supply device 100 receives the reply signal, returns to step S207 (step S209). [0036] When the power supply device 100 When the reply signal of the power receiving device 4 is not received within a set time, the power supply device 1 stops transmitting the power ρ to the power receiving device 200 (step S211). [0037] The power device P1 is again transmitted to the power receiving device 2〇〇 to restore the operation of the power receiving device 400, and after a startup time, the process returns to step S207′ to continue to detect the power receiving device 2 〇〇 (step S2i3). [0038] As in the first embodiment, if the above-mentioned manner cannot restore the secondary power receiving device 4 to a normal operating state, the power supply device 1 can retransmit the power again in the power supply device 100. After one of the predetermined number of times, a notification information is sent to the manager via the power supply unit 100. [0〇39] In summary, the method for fault recovery of the network power supply system of the present invention sends a detection signal to the power receiving device 2, because the power receiving device 2 needs to be in a normal operating state. The detection signal is processed, and a reply signal is sent according to the detection signal. Therefore, the power supply device 1 can immediately detect whether the power receiving device 200 is in a down state or a fault state. [0040] In addition, when the power supply device 1 can not receive the reply signal, the power P1 can be stopped from being transmitted to the power receiving device 200, and the power P1 can be transmitted again to the power receiving device 200 after a waiting time, whereby the power receiving device The restart of 200 is in addition to the failure of the power receiving device 2 or due to other factors, such as 098115064 Form No. A0101 Page 10 / Total 20 pages 0982025398-0 201041333 The electrical device is in an unresponsive state. Therefore, the present invention does not require the presence of a person to monitor or is using the power receiving device 200, and can immediately eliminate the downtime or fault state of the power receiving device 200. [0040] [0049] [0049] [0050] [0050] By the detailed description of the above preferred embodiments, it is desirable to be more clearly described The scope and spirit of the present invention is not limited by the preferred embodiments disclosed herein. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS The first diagram is a system architecture diagram of a first embodiment of a network power supply system of the present invention; the second diagram is a flowchart of a first embodiment of a fault recovery method for a network power supply system of the present invention; 3 is a system architecture diagram of a second embodiment of the network power supply system of the present invention, and FIG. 4 is a flow chart of a second embodiment of a failure recovery method of the network power supply system of the present invention. [Main component symbol description] Network power supply system 1 0 0 0 Power supply unit 100 Main network module 110 Power supply module 12 0 Network power supply module 130 098115064 Form number A0101 Page 11 / Total 20 pages 0982025398-0 201041333 [ 0051] power receiving device 200, 200a [0052] power receiving circuit module 210 [0053] processing module 220 [0054] secondary power supply device 300 [0055] network power processing module 31 0 [0056] secondary power receiving device 400 [0057] Power receiving module 410 [0058] Network module 4 20 [0059] Processing module 430 [0060] Network transmission line L1 [0061] Power line L2 [0062] Signal transmission line L3 [0063] Internet 11 [0064] Electricity P1 098115064 Form No. A0101 Page 12 of 20 0982025398-0