TWI551097B - A narrow data transmission method and a system using the same - Google Patents

A narrow data transmission method and a system using the same Download PDF

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TWI551097B
TWI551097B TW104131345A TW104131345A TWI551097B TW I551097 B TWI551097 B TW I551097B TW 104131345 A TW104131345 A TW 104131345A TW 104131345 A TW104131345 A TW 104131345A TW I551097 B TWI551097 B TW I551097B
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server
forwarding
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forwarding server
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TW201713090A (en
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sheng-fu Zhang
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sheng-fu Zhang
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窄數據傳輸方法及使用該方法的系統 Narrow data transmission method and system using the same

本發明涉及網際網路的物聯網以及智慧家庭領域,特別是指一種窄數據傳輸方法,以及一種使用該窄數據傳輸方法的系統。 The present invention relates to the Internet of Things and the smart home field, and more particularly to a narrow data transmission method and a system using the narrow data transmission method.

目前普遍使用的點對點PTP傳輸技術,在一般的窄數據傳輸應用上有兩個明顯的缺點:首先,P2P的會話建立需要數秒甚至於十幾秒的時間,即時通訊的效果不彰;其次,P2P技術需要高階的OS資源如Multi-Thread,以及CPU、Memory等硬體資源,導致設備端的成本大幅增加 The point-to-point PTP transmission technology currently in common use has two obvious shortcomings in the general narrow data transmission application: First, the P2P session establishment takes several seconds or even ten seconds, and the effect of instant messaging is not good; secondly, P2P Technology requires high-level OS resources such as Multi-Thread, as well as hardware resources such as CPU and Memory, resulting in a significant increase in the cost of the device.

另一個常見的做法是集中式的雲端計算中心,讓所有的設備與用戶的訊息交換全都集中到單一的大型雲端主機。這樣的做法也有兩個缺點: Another common practice is a centralized cloud computing center that allows all device and user information exchanges to be centralized into a single large cloud host. There are two disadvantages to this approach:

第一、能夠支撐大量的設備和用戶數的大型集中式架構的雲端計算中心,其內部通常有數以千、萬計的陣列,依邏輯執行必要的動作或作業。無論是龐大的硬體設備或串聯的軟體設計,均須投入眾多的管理人員與高昂的資金,遠非一般的中、小企業或個人所能負擔。 First, a cloud computing center with a large centralized architecture that can support a large number of devices and users. There are usually tens of thousands of arrays inside, and the necessary actions or operations are performed logically. Whether it is a huge hardware device or a serial software design, it must be invested in a large number of managers and high funds, far from the average small and medium-sized enterprises or individuals can afford.

第二、集中式的架構在全球性的應用服務往往無法提供比分散架構更為即時的速度響應。 Second, centralized architectures in global application services often fail to provide more immediate speed response than decentralized architectures.

還有一些窄數據傳輸方法,採用異地域名解析的技術,即使用一個相同域名但是在不同地區則會解析到當地對應的 伺服器的IP來接收或轉發用戶端與設備端的訊息,如此一來,可有效的分散系統的負擔,達到快速響應的要求。但在全球化的系統應用時,可能會因用戶離開當地而無法聯繫到仍在當地的設備。 There are also some narrow data transmission methods, using the technology of remote domain name resolution, that is, using the same domain name but parsing the local corresponding in different regions. The IP address of the server receives or forwards the message between the client and the device, so that the burden of the system can be effectively dispersed, and the requirement for rapid response can be achieved. However, in the case of a global system application, the user may not be able to contact the device that is still in the local area because the user leaves the local area.

鑒於此,本發明提供一種窄數據傳輸方法,以及一種使用該窄數據傳輸方法的系統,其主要目的在於:採用分工的原則,以負責管理的主控伺服器搭配負責傳遞資訊的轉發伺服器,幫助用戶端對設備端執行數據交換的功能,取得物聯網普及化之目的。 In view of this, the present invention provides a narrow data transmission method, and a system using the narrow data transmission method, the main purpose of which is to adopt the principle of division of labor, and the main control server responsible for management is matched with a forwarding server responsible for transmitting information. Help the client to perform data exchange on the device side, and achieve the goal of popularizing the Internet of Things.

緣於上述目的之達成,本發明的窄數據傳輸方法,依序執行下列步驟:查詢可選用的轉發伺服器列表步驟:一設備端(Device)向一主控伺服器(Coordinator Server)查詢可選用的轉發伺服器列表;選出有回應者,作成且回傳有效的轉發伺服器列表步驟:該設備端從可選用的轉發伺服器列表選出有回應者,作成有效的轉發伺服器列表且回傳到主控伺服器;定期發送步驟:該設備端定期發送封包(Alive)給有效的轉發伺服器列表的每一轉發伺服器(Relay Server),維持連線狀態;以及詢問有效的轉發伺服器列表步驟:一用戶端(Client)向主控伺服器詢問有效的轉發伺服器列表,方便該用戶端與設備端取得聯繫的途徑。 Due to the above object, the narrow data transmission method of the present invention sequentially performs the following steps: querying an optional forwarding server list step: a device (Device) queries a host server (Coordinator Server) for optional use. Forwarding server list; select respondent, create and return a valid forwarding server list step: the device selects a responder from the list of available forwarding servers, creates a valid forwarding server list and sends back to Master server; regular sending step: The device periodically sends an Alive to each forwarding server of the active forwarding server list to maintain the connection status; and asks for a valid forwarding server list step A client (Client) asks the host server for a valid forwarding server list, which facilitates the way the client can contact the device.

本發明的窄數據傳輸方法還有報到與更新二步驟。報到步驟在查詢可選用的轉發伺服器列表步驟前,界定:所有的轉發伺服器聯繫主控伺服器,該主控伺服器編輯可選用的轉發伺 服器列表。 The narrow data transmission method of the present invention also has two steps of reporting and updating. The reporting step defines before the step of querying the optional forwarding server list: all forwarding servers contact the master server, and the master server edits the optional forwarding server. Server list.

當然,在查詢可選用的轉發伺服器列表步驟中,該主控伺服器內建可選用的轉發伺服器列表,同樣在本發明允許的範圍內。 Of course, in the step of querying the optional forwarding server list, the master server has a list of optional forwarding servers built in, which is also within the scope of the present invention.

所述的更新步驟,介於定期發送與詢問有效的轉發伺服器列表二步驟之間。此處所稱的更新步驟:有效的轉發伺服器列表若有變化,該設備端重新發送有效的轉發伺服器列表至主控伺服器予以更新。 The updating step is between the two steps of periodically transmitting and querying the forwarding server list. The update step referred to here: If there is a change in the list of valid forwarding servers, the device resends the valid forwarding server list to the master server for updating.

另外,在詢問有效的轉發伺服器列表步驟後面還有下列步驟:用戶端發送資料到設備端步驟:該用戶端向有效的轉發伺服器發送要給設備端的資料(Date),轉發伺服器把資料轉送到設備端;以及設備端回應用戶端步驟:該設備端通過轉發伺服器回應用戶端。 In addition, after the step of querying the valid forwarding server list, there are the following steps: the client sends the data to the device side: the client sends the data to the device to the valid forwarding server, and forwards the data to the server. Forwarded to the device side; and the device side responds to the client step: the device end responds to the client through the forwarding server.

本發明提供一種使用該窄數據傳輸方法的系統,包括:一主控伺服器,其提供一可選用的轉發伺服器列表與一有效的轉發伺服器列表;多個轉發伺服器,每一轉發伺服器被該主控伺服器編輯在可選用的轉發伺服器列表中;一設備端,其向該主控伺服器查詢可選用的轉發伺服器列表,選出有回應者作成有效的轉發伺服器列表,回傳主控伺服器取代原先有效的轉發伺服器列表;及一用戶端,其向該主控伺服器詢問有效的轉發伺服器列表,透過該有效的轉發伺服器發送一資料到設備端,並經由 該有效的轉發伺服器接收設備端的回應。 The invention provides a system using the narrow data transmission method, comprising: a master server, which provides an optional forwarding server list and an effective forwarding server list; a plurality of forwarding servers, each forwarding servo The device is edited by the master server in an optional forwarding server list; a device side queries the master server for an optional forwarding server list, and selects a responder to make a valid forwarding server list. The backhaul master server replaces the original valid forwarding server list; and a client queries the master server for a valid forwarding server list, and sends a data to the device through the effective forwarding server, and via The valid forwarding server receives the response from the device.

如此,本發明採用分工的原則,以使用該窄數據傳輸方法的系統,用負責管理的主控伺服器搭配負責傳遞資訊的轉發伺服器,幫助用戶端對設備端執行數據交換的功能,取得物聯網普及化之目的。 In this way, the present invention adopts the principle of division of labor, and uses the system of the narrow data transmission method to cooperate with the main control server responsible for management and the forwarding server responsible for transmitting information, thereby helping the user end perform the function of data exchange on the device side, and acquires the object. The purpose of universalization of networking.

接著,基於圖式詳述相關的實施例,說明採用之技術、手段及功效,相信本發明上述目的、構造及特徵,當可由之得一深刻而具體的瞭解。 The above-described objects, structures and functions of the present invention will be described with reference to the detailed description of the embodiments.

10‧‧‧網際網路 10‧‧‧Internet

12‧‧‧主控伺服器 12‧‧‧Master Server

14‧‧‧轉發伺服器 14‧‧‧ Forwarding server

16‧‧‧設備端 16‧‧‧Device side

18‧‧‧用戶端 18‧‧‧ Client

20‧‧‧報到 20‧‧‧ Report

21‧‧‧查詢可選用的轉發伺服器列表 21‧‧‧Query the list of optional forwarding servers

22‧‧‧選出有回應者,作成且回傳有效的轉發伺服器列表 22‧‧‧Select respondents, create and return a valid forwarding server list

23‧‧‧定期發送 23‧‧‧Sent regularly

24‧‧‧更新 24‧‧‧Update

25‧‧‧詢問有效的轉發伺服器列表 25‧‧‧Ask a valid forwarding server list

26‧‧‧用戶端發送資料到設備端 26‧‧‧User sends data to the device

27‧‧‧設備端回應用戶端 27‧‧‧Device side responds to the client

第1圖是本發明使用窄數據傳輸方法的系統一較佳實施例的示意圖。 1 is a schematic diagram of a preferred embodiment of a system using a narrow data transmission method of the present invention.

第2圖是窄數據傳輸方法的流程圖。 Figure 2 is a flow chart of a narrow data transmission method.

如第1、2圖所示,闡明使用窄數據傳輸方法的系統一較佳實施例,是由一主控伺服器12、多個轉發伺服器14、一設備端16與一用戶端18組成,使用在一網際網路10的環境中。 As shown in the first and second figures, a preferred embodiment of the system for using the narrow data transmission method is composed of a master server 12, a plurality of forwarding servers 14, a device terminal 16, and a client terminal 18. Used in an environment of the Internet 10.

在本實施例,該主控伺服器12是一組,每組主控伺服器12為三臺計算機組成。當然,主控伺服器12也可以是一臺、二臺或三台以上的計算機組成。該主控伺服器12提供一可選用的轉發伺服器列表與一有效的轉發伺服器列表。所述的可選用的轉發伺服器列表,可以是該主控伺服器12內建的資料,或是透過下列的窄數據傳輸方法取得。 In this embodiment, the master server 12 is a group, and each group of master servers 12 is composed of three computers. Of course, the master server 12 can also be composed of one, two or more computers. The master server 12 provides an optional forwarding server list and a list of valid forwarding servers. The optional forwarding server list may be the data built in the main control server 12 or obtained through the following narrow data transmission method.

某些實施例,該主控伺服器12可以是數個,每一主控伺服器12均可單獨運作,達到備援之效果。 In some embodiments, the number of the master servers 12 may be several, and each of the master servers 12 may be operated separately to achieve the backup effect.

這些轉發伺服器14各自編列不同的群組,被主控伺服器12編輯在可選用的轉發伺服器列表中。簡單的說,以地區為 考量,這些轉發伺服器14分成亞洲、美洲與歐洲等群組。假設亞洲群組的用戶端數量愈多,可增加轉發伺服器14數量。倘若美洲群組的用戶端數量變少,則縮編轉發伺服器14數量。 These forwarding servers 14 each have a different group that is edited by the hosting server 12 in an optional forwarding server list. Simply put, the area is In consideration, these forwarding servers 14 are divided into groups such as Asia, America, and Europe. Assuming that the number of clients in the Asian group is increased, the number of forwarding servers 14 can be increased. If the number of clients in the Americas group is reduced, the number of forwarding servers 14 is downsized.

所述的設備端16可以是主機,其擁有一應用程式介面(API),管理室內的電器或電子產品,如電燈亮度、空調設備的出風量或溫度等。 The device end 16 can be a host having an application programming interface (API) for managing electrical or electronic products in the room, such as brightness of the electric lamp, air volume or temperature of the air conditioner.

該用戶端18可以是一通訊設備,如擁有應用程式介面的智慧型手機。 The client 18 can be a communication device such as a smart phone with an application interface.

值得注意的是,該用戶端18和設備端16透過一路由器(Router)連接至網際網路10。而且,該用戶端18和設備端16的網際網路IP可以是浮動的,可能每隔固定的時間就會改變位址。 It should be noted that the client 18 and the device 16 are connected to the Internet 10 through a router. Moreover, the Internet IP of the client 18 and the device 16 can be floating, and the address may be changed at regular intervals.

接著,描述窄數據傳輸的使用流程。首先,報到20步驟:所有的轉發伺服器14聯繫主控伺服器12,該主控伺服器12作成或編輯一份可選用的轉發伺服器列表。 Next, the flow of use of narrow data transmission will be described. First, the step 20 is reported: all forwarding servers 14 contact the master server 12, which creates or edits an optional forwarding server list.

換言之,每個轉發伺服器14以發送封包方式向主控伺服器12報到,告知轉發伺服器14的身分與群組等信息。在固定的時間,該轉發伺服器14會執行報到程序。當然,該轉發伺服器14報到時間是可以調整的。 In other words, each forwarding server 14 reports to the master server 12 in a manner of transmitting a packet, and informs the forwarding server 14 of the identity and group information. At a fixed time, the forwarding server 14 executes the reporting procedure. Of course, the forwarding time of the forwarding server 14 can be adjusted.

譬如,十五臺轉發伺服器14向主控伺服器12報到,該主控伺服器12作成可選用的轉發伺服器列表,包括這些轉發伺服器14的全部信息,如身分與群組等。 For example, fifteen forwarding servers 14 report to the master server 12, which makes an optional forwarding server list, including all of the information of the forwarding server 14, such as identity and group.

但是,該主控伺服器12如已內建可選用的轉發伺服器列表時,請跳過報到20步驟,直接進入下一個步驟。 However, if the master server 12 has built-in a list of optional forwarding servers, skip the step 20 and go directly to the next step.

查詢可選用的轉發伺服器列表21步驟:所述的設備端16向主控伺服器12查詢可選用的轉發伺服器列表。 Querying the optional forwarding server list 21 Step: The device terminal 16 queries the master server 12 for an optional forwarding server list.

選出有回應者,作成且回傳有效的轉發伺服器列表 22步驟:該設備端16從可選用的轉發伺服器列表選出有回應者,作成有效的轉發伺服器列表且回傳到主控伺服器12。 Select responders, create and return a valid forwarding server list Step 22: The device end 16 selects a responder from the list of available forwarding servers, creates a valid forwarding server list, and transmits it back to the main control server 12.

承上例,該設備端16透過封包方式聯繫名單中全部的轉發伺服器14,只有編號2、3、5、8、10五臺轉發伺服器14回應設備端16的聯繫。該設備端16編輯有效的轉發伺服器列表且回傳到主控伺服器12,覆蓋原先有效的轉發伺服器列表。如此,該主控伺服器12有效的轉發伺服器列表保持在最新狀態。 In the above example, the device end 16 contacts all the forwarding servers 14 in the list through the packet mode, and only the five forwarding servers 14 of the numbers 2, 3, 5, 8, and 10 respond to the connection of the device terminal 16. The device end 16 edits the active forwarding server list and passes it back to the master server 12, overwriting the original valid forwarding server list. As such, the active forwarding server list of the master server 12 remains in the latest state.

定期發送23步驟:該設備端16定期發送封包(Alive)給有效的轉發伺服器列表的每個轉發伺服器14,維持連線狀態。 Regularly send 23 steps: the device end 16 periodically sends an Alive to each forwarding server 14 of the active forwarding server list to maintain the connection state.

承上例,該設備端16透過路由器聯繫編號2、3、5、8、10等五臺有效的轉發伺服器14,這些轉發伺服器14通過路由器回應設備端16的招呼,才能讓路由器保持暢通的連線狀態,避免斷線的危險。 According to the above example, the device end 16 communicates with the five effective forwarding servers 14 of the number 2, 3, 5, 8, 10 through the router, and the forwarding server 14 responds to the device 16 by the router to keep the router unblocked. The connection status avoids the danger of disconnection.

更新24步驟:有效的轉發伺服器列表若有變化,該設備端16重新發送有效的轉發伺服器列表至主控伺服器12,用以更新而使有效的轉發伺服器列表保持在最新狀態。 Update 24 Step: If there is a change in the list of valid forwarding servers, the device 16 resends the valid forwarding server list to the hosting server 12 for updating to keep the active forwarding server list up to date.

例如,編號3的轉發伺服器14突然中斷。此刻,該設備端16改寫最新且有效的轉發伺服器列表,包括編號2、5、8、10等四臺仍舊連線的轉發伺服器14,回傳主控伺服器12並覆蓋原先有效的轉發伺服器列表。 For example, the forwarding server 14 of number 3 is abruptly interrupted. At this moment, the device end 16 rewrites the latest and valid forwarding server list, including four forwarding servers 14 still numbered 2, 5, 8, 10, etc., and returns the main control server 12 and overwrites the original valid forwarding. Server list.

詢問有效的轉發伺服器列表25步驟:該用戶端18向主控伺服器12詢問有效的轉發伺服器列表,該主控伺服器12傳遞最新且有效的轉發伺服器列表至用戶端18,方便該用戶端18得知聯繫設備端16的途徑。 Inquiring about a valid forwarding server list 25 step: the client 18 queries the master server 12 for a valid forwarding server list, and the master server 12 delivers the latest and valid forwarding server list to the client 18, facilitating the The client 18 knows the way to contact the device end 16.

用戶端發送資料到設備端26步驟:該用戶端18向有效的轉發伺服器14發送要給設備端16的資料,該轉發伺服器14把資 料轉送到設備端16。 The client sends the data to the device end 26: the client 18 sends the data to the device 16 to the effective forwarding server 14, and the forwarding server 14 The material is transferred to the device end 16.

設備端回應用戶端27步驟:該設備端16通過轉發伺服器14回應用戶端18。 The device end responds to the client terminal 27: the device terminal 16 responds to the client terminal 18 through the forwarding server 14.

承上例,該用戶端18要給設備端16的資料,透過編號2、5、8、10等四臺仍舊連線的轉發伺服器14送到設備端16。而且,該設備端16通過編號2、5、8、10等四臺轉發伺服器14回應用戶端18。 In the above example, the data to be sent to the device 16 by the client 18 is sent to the device 16 through four forwarding servers 14 that are still connected by numbers 2, 5, 8, and 10. Moreover, the device end 16 responds to the client 18 by four forwarding servers 14, numbered 2, 5, 8, and 10.

20‧‧‧報到 20‧‧‧ Report

21‧‧‧查詢可選用的轉發伺服器列表 21‧‧‧Query the list of optional forwarding servers

22‧‧‧選出有回應者,作成且回傳有效的轉發伺服器列表 22‧‧‧Select respondents, create and return a valid forwarding server list

23‧‧‧定期發送 23‧‧‧Sent regularly

24‧‧‧更新 24‧‧‧Update

25‧‧‧詢問有效的轉發伺服器列表 25‧‧‧Ask a valid forwarding server list

26‧‧‧用戶端發送資料到設備端 26‧‧‧User sends data to the device

27‧‧‧設備端回應用戶端 27‧‧‧Device side responds to the client

Claims (7)

一種窄數據傳輸方法,依序執行下列步驟:查詢可選用的轉發伺服器列表(21)步驟:一設備端(Device)向一主控伺服器(Coordinator Server)查詢可選用的轉發伺服器列表;選出有回應者,作成且回傳有效的轉發伺服器列表(22)步驟:該設備端從可選用的轉發伺服器列表選出有回應者,作成有效的轉發伺服器列表且回傳到主控伺服器;定期發送(23)步驟:該設備端定期發送封包(Alive)給有效的轉發伺服器列表的每一轉發伺服器(Relay Server),維持連線狀態;以及詢問有效的轉發伺服器列表(25)步驟:一用戶端(Client)向主控伺服器詢問有效的轉發伺服器列表,方便該用戶端與設備端取得聯繫的途徑。 A narrow data transmission method, the following steps are performed in sequence: querying an optional forwarding server list (21) step: a device (Device) queries a host server (Coordinator Server) for an optional forwarding server list; Selecting a respondent, creating and returning a valid forwarding server list (22) step: the device selects a responder from the list of available forwarding servers, creates a valid forwarding server list, and transmits back to the master server. Regularly send (23) steps: The device periodically sends a packet (Alive) to each forwarding server (Relay Server) of the active forwarding server list to maintain the connection status; and queries the valid forwarding server list ( 25) Step: A client (Client) asks the host server for a valid forwarding server list, which facilitates the way the client can contact the device. 如申請專利範圍第1項所述的窄數據傳輸方法,其中,在定期發送(23)與詢問有效的轉發伺服器列表(25)二步驟之間添加更新(24)步驟:有效的轉發伺服器列表若有變化,該設備端重新發送有效的轉發伺服器列表至主控伺服器予以更新。 The narrow data transmission method of claim 1, wherein the step of updating (24) is added between the two steps of periodically transmitting (23) and querying the valid forwarding server list (25): an effective forwarding server If the list changes, the device resends the valid forwarding server list to the master server for updating. 如申請專利範圍第1項所述的窄數據傳輸方法,其中,在查詢可選用的轉發伺服器列表(21)步驟前還有報到(20)步驟:所有的轉發伺服器聯繫主控伺服器,該主控伺服器編輯可選用的轉發伺服器列表。 The narrow data transmission method according to claim 1, wherein the step (20) is reported before the step of querying the optional forwarding server list (21): all forwarding servers contact the main control server, The master server edits the list of available forwarding servers. 如申請專利範圍第1項所述的窄數據傳輸方法,其中,在查詢 可選用的轉發伺服器列表(21)步驟中,該主控伺服器內建可選用的轉發伺服器列表。 The narrow data transmission method as described in claim 1, wherein the query In the optional forwarding server list (21) step, the master server has a list of optional forwarding servers built in. 如申請專利範圍第1~4項中任一項所述的窄數據傳輸方法,其中,在詢問有效的轉發伺服器列表(25)步驟後面還有下列步驟:用戶端發送資料到設備端(26)步驟:該用戶端向有效的轉發伺服器發送要給設備端的資料(Date),轉發伺服器把資料轉送到設備端;設備端回應用戶端(27)步驟:該設備端通過轉發伺服器回應用戶端。 The narrow data transmission method according to any one of claims 1 to 4, wherein after the step of inquiring the valid forwarding server list (25), there is the following step: the user sends the data to the device side (26) Step: The client sends the data to the device (Date) to the effective forwarding server, and the forwarding server forwards the data to the device; the device responds to the client (27): the device responds by forwarding the server user terminal. 一種使用申請專利範圍第1~4項中任一項所述的窄數據傳輸方法的系統,包括:一主控伺服器(12),其提供一可選用的轉發伺服器列表與一有效的轉發伺服器列表;多個轉發伺服器(14),每一轉發伺服器(14)被該主控伺服器(12)編輯在可選用的轉發伺服器列表中;一設備端(16),其向該主控伺服器(12)查詢可選用的轉發伺服器列表,選出有回應者作成有效的轉發伺服器列表,回傳主控伺服器(12)取代原先有效的轉發伺服器列表;及一用戶端(18),其向該主控伺服器(12)詢問有效的轉發伺服器列表,透過該有效的轉發伺服器(14)發送一資料到設備端(16),並經由該有效的轉發伺服器(14)接收設備端(16)的回應。 A system for narrow data transmission method according to any one of claims 1 to 4, comprising: a master server (12) providing an optional forwarding server list and a valid forwarding a server list; a plurality of forwarding servers (14), each forwarding server (14) being edited by the master server (12) in an optional forwarding server list; a device end (16), The master server (12) queries the list of available forwarding servers, selects a respondent to make a valid forwarding server list, returns the master server (12) to replace the original valid forwarding server list; and a user Terminal (18), which queries the master server (12) for a valid forwarding server list, transmits a data to the device terminal (16) through the effective forwarding server (14), and transmits the valid forwarding servo The device (14) receives the response from the device (16). 一種使用申請專利範圍第5項所述的窄數據傳輸方法的系統,包括:一主控伺服器(12),其提供一可選用的轉發伺服器列表與一有效的轉發伺服器列表;多個轉發伺服器(14),每一轉發伺服器(14)被該主控伺服器(12)編輯在可選用的轉發伺服器列表中;一設備端(16),其向該主控伺服器(12)查詢可選用的轉發伺服器列表,選出有回應者作成有效的轉發伺服器列表,回傳主控伺服器(12)取代原先有效的轉發伺服器列表;及一用戶端(18),其向該主控伺服器(12)詢問有效的轉發伺服器列表,透過該有效的轉發伺服器(14)發送一資料到設備端(16),並經由該有效的轉發伺服器(14)接收設備端(16)的回應。 A system for using the narrow data transmission method described in claim 5, comprising: a master server (12), which provides an optional forwarding server list and a valid forwarding server list; Forwarding server (14), each forwarding server (14) is edited by the main control server (12) in an optional forwarding server list; a device end (16) to which the main control server ( 12) querying the list of optional forwarding servers, selecting a respondent to make a valid forwarding server list, returning the master server (12) to replace the original valid forwarding server list; and a user terminal (18), Asking the master server (12) for a valid forwarding server list, transmitting a data to the device terminal (16) through the active forwarding server (14), and receiving the device via the effective forwarding server (14) End (16) response.
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