200534193 玖、發明說明： 【發明所屬之技術領域】 本發明是有關於一種白板共享方法及系統，特別是指 一種能透過網路提供即時互動之教學白板共享方法及系統 5 ° 【先前技術】 有鑑於教育對於國家競爭力的重要性，各國政府無不 投資人力與金錢來提昇學生的學習品質，其中，具操作容 易與互動性佳等優點之電腦辅助教學（c〇mputer_assisted 10 instruction ;簡稱CAI)更被積極發展。一般電腦輔助教學係 指運用電腦之交談式或互動式（interactive)的功能來引介教 材，以提供個別（individual)或個別化（individualized)之一種 教學環境。因此，互動性成為電腦輔助教學不可或缺的功 能。 15 然而，目前在學校的課堂中使用電腦辅助教學常被形 容只能達到一個電子黑板或電子書本的作用，僅是將以往 於黑板與書本上的書面資料利用諸如PowerPoint或Acrobat 之類的軟體編輯成電子資料，再轉移於各學生的顯示器， 不具互動性，難以對課堂中教師與學生或同學間的互動性 20 討論提供協助，仍需以傳統提問與分組討論方式進行。 再者，隨著網路的發展，對電腦輔助教學的發展亦產 生了 一定的影響。許多機構已開始了網上教學的課程，學 生可以透過網路取得學習材料，亦可以透過網路與教師及 同學交流，此種教學方式又稱遠距教學。然而，此種的學 200534193 習教材大都為預製，學生僅能單向 電子郵件方气十R ^ 而通過#如 溝通= 的方式來與教師或部分同學 難以讓所有同學皆可參與並瞭解討論過程。 、尚雷2 ’能提供工具讓學生與教師間或學生間可透 \ 行相互討論，且課堂中的學生可即時分享討論 内谷與加入纣論，甚至不在課堂内的遠端同步學習的學生 亦可加入，將可增加學習的參與感，冑而達到增加學習芈 趣之目的。 t胃$ 【發明内容】 ίο 15 、/本t明之一目的，是在提供一種共享教學白板 之方法及系統，使複數用戶端可透過伺服器來共享線上白 板，以達到便於共同討論之功效。 、本發明之另-目的，是在提供一種共享教學白板之方 系、’先以達到教學白板上的討論内容可即時更新之功 效0 於疋本發明之共享教學白板之方法，係供複數用戶 端可透過伺服器來共享線上白板，包含： A) 該等用戶端可自該伺服器下載正在線上的一白板資 料’以開啟一顯#該白板資料之白板畫面； B) 若該等用戶端中的任一用戶端編輯該白板晝面時， 將其編輯之更新資料上傳至該伺服端；以及 )右°亥專用戶‘開啟該白板畫面時’該等用戶端會適 時自该伺服端下载該白板的更新資料，使該等用戶端所開 啟之白板畫面可同步更新。 20 200534193 本發明之功效能提供共享教學白板之方法及系統，其 不僅能使用戶能共同使用白板來溝通討論，亦可讓用戶能 即時獲得白板的更新資料，以達到互動式教學之目的。 【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較佳實施例的詳細說明中，將可清 楚的明白。 參閱圖1，本發明共享教學白板系統之較佳實施例包含 一伺服器1及複數個分屬各用戶之電子裝置21、22，且各 電子裝置21、22與伺服器1間可透過網路相互溝通。由於 本實施例係在校園中實施例，因而電子裝置21、22與祠服 器1間的網路係應用區域網路。電子裝置係至少包含一供 顯示資訊用之顯示螢幕、一供用戶輸入資料之輸入裝置及 一用以連結網路之網路裝置，而可為個人電腦、筆記型電 腦、個人數位助理機、平板電腦等等。本例中電子裝置21 、22係以平板電腦為例來說明，因而用戶可透過觸控筆來 輸入資訊。各用戶之身分可為課堂中的學生或教師，伺服 裔1内安裝有一教學白板管理程式與一供儲存教學白板資 訊之資料庫（圖未示），各電子裝置21、22内安裝有一共享 教學白板程式（圖未示）。各程式之功能及電子裝置21、22 與伺服器1間的互動流程將在以下段落中說明中可被明瞭 在下文中，先配合圖2來對用戶端的共享教學白板流 程來說明。當課堂中開始上課時，令各用戶啟動其電子裝 200534193 置21、22㈣共享教學白板程式m項技藝者當知， 亦可令共享教學白板程式為常駐程式。 當共享教學白板程式啟動後，在步驟 你乂鄉3 1中，要求各用 戶透過網路登入伺服器丨。在伺服器丨 T傾存有各用戶資料 ，例如用戶名稱與密碼，以在用戶登 、 ^ 尸且入日守驗證其上傳的用 戶資料無誤時，始允許用戶登入。 其次’在步驟32巾’當用戶登入伺服器i後下載一 白板名單至電子裝置21、22上。如圖6，士 々抑 圓b此白板名單01含 ίο 15 有複數個目前正在線上的所有白板611、612、613。在此， 由於本例係規劃於校園中供多數個課程使用，因而伺服器i 的資料庫更會儲存各用戶之課程表，所以用戶登人伺服器i 時’對應下m的是用戶在此時應正在上課之課程的白板名 單，因而雖然相同時間，然而位於不同課堂的用戶所下載 的白板名單亦有所差異。然後，各用戶欲參與或觀看任一 白板的討論内容時，可利用點選白板611、612、613來開啟 對應的白板畫面。 因而’在步驟33中，偵測是否有任一白板61丨、612、 613被點選。若步驟33中偵測到白板611、612、613被點 選時，則執行步驟34。若步驟33中未偵測到白板611、612 、612被點選時，執行步驟37。 在步驟34中，自伺服器丨下載此白板名稱所屬之白板 資料，才曰先剞其他用戶對於此白板所編輯的資料，以開啟 一白板畫面62(如圖乃。此後，用戶可對此白板晝面62進 行編輯’例如直接以觸控筆描繪或貼圖片等等（容後再述）。 20 5 10 15 20 200534193 其人由於各用戶可能對白板進行編輯動作，因而， 在步驟35 t ’共享教學白板程式會定時更新此選定白板（指 正顯示於電子裝置之顯示螢幕上的白板畫面）資料，使白板 畫◎的_動作而更新（容後再述）。 再者由於用戶可此因先前使用的白板畫面已益空間 編輯或用戶欲討論新議題而新增一白板畫面，因而：在步 驟36中，共旱教學白板程式會定時更新白板名單w，讓新 增的白板可即時顯示於所有用戶之白板名單^上。 此外，雖然本實施例中先後於步驟35、％中更新選定 白板資料與白板名# 6卜然而熟習該項技藝者當知，步驟 二、36之執行順序可依設計者需求而調整，甚者可同時執 仃，並不受限於本實施例所揭露。 若步驟33中判斷出未有白板611、612、⑴被點選時 ，則跳至步驟37中，繼續偵測是否用戶有自行新增-全新 =畫：指空白的白板晝面)。若步驟3”貞測有時，執 / ㈣啟新白板畫面的訊息上傳至伺服器1。此 ::::含此新白板畫面是由何人開啟的資料指開啟此 :白板:面之用戶的用戶名稱，讓其他用戶於更新白板名 早6…可即時瞭解新增的白板是由 ==，將用戶所新增的白板晝面作為二在 =之:::於其所新增的白板畫面上編輯與編輯内 右步驟3 7判斷為否時，跳回+ 測用戶是否有點選任_白板之動作。a ，以繼續摘 9 200534193 應注意的是，_先後於步驟33、37中以不同條件福 測用戶是否開啟白板晝面，然而熟習該項技藝者當知，步 驟33、37之先後順序可依設計者需求而調整，甚至可同時 執行，並不應受限於本實施例所揭露。 ”人配σ圖3來進彳了本實施例中更新選定白板資料 流程的-範例說明。在此範例中先行假設用戶已開啟 板晝面62。 —首先’在步驟350,設定—第一更新間隔時間，以決定 ίο 15 20 母次更新白板資料間的間隔時間。第—更新間隔時間可由 用戶來設定或由設計者預今太 又本例之弟一更新間隔時間係 直接擷取設定者所預設時間值（如〇.3秒）來設定。 :於用戶所開啟白板畫面Q除了其他用戶可能在其上 、、扁車耳外，自己本身亦可能尤1 八上、扁輯，因而倘若在用戶正 在:輯時，白板畫面卻不斷更新變化，會形成用戶的困擾 輯時，盔項㈣^去 ♦耳她例中叹疋當用戶正在編 A 士 μ、 反旦面62，直至用戶編輯結束後，始需 疋W更新白板晝面。 因而，在步驟351巾，先福測是否有用戶於白板書面 ^白板動作開始執行。若步驟351判斷有時，執行 ，：二？時器(圖未示)停止計時。若步驟351判斷無時 執订步驟3 5 5，言+日吝哭p弓仏丄丄士 動作，可為…田 射用戶於編輯白板 面62 利用諸如觸控筆之類的輸入裝置於白板畫 等等。4輯的筆觸，或為用戶貼於白板畫面62上的圖片 10 200534193 在v驟352中除了讓計時器停止計時外，更會將用戶 編輯所產生的更新資料（如筆觸或圖片）即_示於心^ 板畫面62上且紀較„料。在㈣M2結束後，執行步 驟353，偵測編輯白板動作是否結束。 ίο 15 若步驟353中積測到編輯白板動作結束時，則執行步 驟354。舉例來說，若用戶以觸控筆執行編輯白板動 則當觸控筆提起（即筆觸結束）時，則代表編輯白板動作結束 二者：戶以圖片來執行編輯白板動作時，則當圖片以貼 上白板旦面62日夺，意味著編輯白板動作結束。反之， 们53未偵測到白板動作結束時，跳回步驟352,持續料 :二：止計時及讓編輯白板動作顯示與紀錄，直至編輯白 板動作結束。 輯白=5::，將所紀錄白板畫面62之更新資料(指編 料）上傳予飼服器^以讓飼服器1 J即時紀錄所有用戶對於白4 結束後，跳回步驟35卜1 扁輯動作。在步驟354 時戶未有編輯白板動作時，執行步驟奶，計 開始㈣°步驟355結束後，執行步驟356。 =‘驟356判斷計時器所計數時間是否 新間隔時間（例如是否計數時 J弟更 中判斷為*，則繼續步驟357。若達步=秒):_ 跳回步驟351，以於侦測未有 否日：， ，直至_到未⑽輯白㈣作⑽7作產㈣騎計時 隔時間為止。在本實施例中動二的:=，^ …、死則因未有編輯白板動 20 5 10 15 20 200534193 作下而讓計時器 編輯白板動作時；行步：==過=偵_ ::過:=，測到編輯白板動作產生二：器:: ，先^ 苐—更新間隔時間為止。在本實施例中 <貞測到編輯白板動作而中止計時器計時，於下次 時，H有編輯白板動作產生之時，計時器係重新開始計 一卩U數到持續未有編輯白板動作產生的時間達到第 更新間隔時間’始會執行步驟357。 在步驟357中，產生一選定白板資料更新要求並上傳 =伺服器i。此較白板資料更新要求内會含有正開啟白板 旦面Q的名㈣用戶名稱’以讓飼服器^可明瞭用戶所欲 要求的選定白板更新資料，而伺服器"妾收到此要求時， 若有符合條件的更新資料時即會回傳此選定白板更新資料 予用戶（容後再述）。 '、後在乂驟358巾，繼續判斷是否有來自伺服器1 的選定白板更新資料，若有時，執行步驟359，以進行資料 更新’以將選定白板更新資料顯示於白板畫面62上。反之 ’若步驟358判斷無時，跳回步驟351。同樣地，步驟359 結束後，亦跳回步驟351，以持續上傳用戶執行的編輯白板 動作所產生的更新資料與下載因其他用戶產生之更新資料 如此’各用戶將因其編輯白板動作產生的更新資料上 傳至伺服③1，伺服器1擁有最新、最完整的各白板資料， 且各用戶會時時自伺服器、1下載選定白板更新資料，以使 12 5 10 15 20 200534193 歧r的白板畫面62除了可因自己的編輯白板動作而產生 變化’亦會出現因其他用戶對於同—白板晝面的編輯白板 動作而產生的更新資料。因而，各用戶之白板畫面62可供 口用戶自己進行編輯白板動作，以發表意見，而其他用戶亦 可於同-白板畫面62上執行編輯白板動作，以參與討論， 同時這些討論結果可即時顯示於所有用戶之白板畫面^上 盘以提供用戶間互動討論的工具，進而增加用戶之參盘感 與注意力，以達到互動式教學之功效。 … ^卜來配合圖4來說明本例中更新 之流程的一範例。 平 首先，在步驟360中，今金楚—φ * 定每次更新白板名單61 _間；;Γ隔㈣’以決 可由使W錢計者預二S間隔時間 係由設計者所預設，例如3秒，二更新間隔時間 設定第二更新間隔時間。步驟360係依照預設值來 其次，在步驟361中，舛拄π 0曰 每隔第二更新間隔時間即進行：;二時。本例中設定 因而計時器計數時間為第二更斩广早61更新作動’ 新時間。舉例來說，若第二―更：::：間的倍數時州 時器計數到3秒、6秒、9秒、/、/a1為3秒時，則計 而後，在步驟362 +，判斷：等音為更新時間。 驟362判斷為是時’執行步驟36二=新時間' ，跳回步騾362，以繼續等待 人驟362判斷為 在步驟363中，產新時間為止。 生―白板名單更新要求並上傳 13 200534193 服器1。此白板名單更新要求内含有用戶名稱，當伺服器i 接收到此白板名單更新要求時，則將此用戶所 單中自此用戶前次下載至此時中的改變資料作為白板名單 更新資料（指同屬於此課程之用戶所新增白板）回傳予用戶。 其次，在步驟364巾，判斷是否有自伺服器}接收白 板名單更新資料。若步驟364判斷為有時，執行步驟365， 進行資料更新，以將白板名單更新資料顯示於白板名單Μ 内^吏得各用戶可即時獲知是否有他人新增白板。相反地 :若步驟364判斷為否時’跳回步驟362，等待下一次更新· 了間同樣地，步驟365結束後’亦跳回步驟362，以等待 下一次更新時間。 如此，藉由圖4之更新白板名單流程之設計，讓所有 用戶可即時獲知他人所新增的白板，進而加入討論，以達 到提供互動討論環境之功效。 一最後’再配合圖5由伺服端1來說明本例之教學白板 共享方法之流程。 首先’在步驟巾’判斷是否有新用戶登入。若步驟籲 41中判斷有時，執行步驟42。若步驟41判斷無時，跳至 步驟43。 在步驟42中’伺服器丨確認新用戶的身分無誤後，依 照課程表將此新用戶此時應正在上課之課程的白板名單傳 运予新用戶。在步驟42結束後，執行步驟43。 在步驟43中，祠服器丄判斷是否有自用戶端接收到一 白板名單更新要求。若有時，執行㈣44。若無時，執行 14 5 10 15 20 200534193 ::二。在步驟44中’伺服器1自資料庫中篩選發送此要 改變資料：：白板名單中自此用戶前次要求與此次要求間 後:二:為白板名單更新資料回傳予用戶。步…束 俊跳至步驟45。 其次’在步驟45中，伺服器i判斷是否有收到一因選 二Γ/生的要求，即指用戶點選白板名單61内的白板 、广613而產生的要求。若步驟4”判斷為有時， 則執行步驟46，伺服丨雔+、联〜 n 1將此選定白板對應之白板資料回 傳予用戶，讓用戶可依據此白板資料開啟一白板書面… 反之’若步驟45判斷為無時，跳至步驟仏當，然，步驟 46結束後，亦繼續步驟47。 在/驟47中’伺服器i判斷是否有收到一選定白板資 料更新要求。若步驟47判斷有時，執行步驟48。反之，若 步驟47判斷無時，跳至步驟49。 在步驟48中，伺服器丨會依據選定白板資料更新要求 來自資料庫中篩選為此選定白板且為此用戶前次要求與此 次要求間改變資料作為選定白板更新資料回傳予用戶，讓 用戶可即時更新白板畫® 62。步驟48結束後，執行步驟 49 〇 在步驟49巾，伺服器i判斷是否有收到自用戶上傳的 資料。此上傳資料可能為開啟新白板晝面的訊息或執行編 輯白板動作產生的更新資料。在步驟49判斷為有時，執行 步驟50，將上傳資料儲存至資料庫以適時更新資料庫。反 之，若步驟49判斷為無時，跳回步驟41。同樣地，步驟 15 200534193 48結束後，亦跳回步驟41。 因此，本實施例之伺服器丨主要是用來儲存自各用戶 上傳之所有白板的更新資料與白板名單的更新資料，讓伺 服器1擁有最完整、最新的白板名單61與白板資料，進而 可回應各用戶的更新要求，以將對應的更新資料回傳予用 戶。同日守，因飼服器1於用戶要求時始需下傳對應的資料 ，以有效減輕伺服器丨的工作負擔，進而達到系統穩定之 功效。 - 應注意的是，雖然本實施例中步驟41、43、45、Ο、 ^ 49依序對各種情況作判斷，熟習該項技藝者當知，步驟q 、43、45、47、49 後順序可依設計者需要而調整，亦 可同時判斷，並不應受限於本實施例之說明。 依前所述，本發明之共享教學白板之方法及系統確實 能提供讓學生與教師間或學生間可透過電腦來進行相互討 淪的途徑，且課堂中的學生可即時分享討論内容與加入討 論，甚至不在課堂内的遠端同步學習的學生亦可加入，以 增加學習的參與感，進而達到增加學習樂趣之目的。 鲁 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本發明共享教學白板之系統的較佳 實施例的架 構圖； 16 200534193 圖2是本實施例中用戶端的執行步驟之流程圖； 圖3是圖2中更新選定白板的流程圖； 圖4是圖2中更新白板名單之流程圖； 圖5是本實施例中伺服器的執行步驟的流程圖； 5 圖6是本實施例中白板名單的一範例的示意圖；及 圖7是本實施例中白板晝面的一範例的示意圖。 17 200534193 【圖式之主要元件代表符號說明】 1伺服器 61 21、22電子裝置 611 31〜36 、 350〜359 、 360〜365 62 、41〜50步驟 白板名單 、612、613 白板 白板晝面 18200534193 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a method and system for sharing whiteboards, in particular to a method and system for sharing whiteboards for teaching that can provide real-time interaction through the network 5 ° [Previous Technology] Yes In view of the importance of education to national competitiveness, governments of all countries have invested manpower and money to improve the learning quality of students. Among them, computer-assisted teaching (c0mputer_assisted 10 instruction; CAI) has the advantages of easy operation and good interaction. More actively developed. General computer-assisted instruction refers to the use of computer's interactive or interactive functions to introduce teaching materials to provide an individualized or individualized teaching environment. Therefore, interactivity has become an indispensable feature of computer-assisted instruction. 15 However, at present, the use of computer-assisted instruction in school classrooms is often described as being only an electronic blackboard or an e-book, and only using written materials such as PowerPoint or Acrobat on the blackboard and books. The software is edited into electronic data and then transferred to the display of each student. It is non-interactive, and it is difficult to provide assistance in the interactive discussions between teachers and students or classmates in the classroom. Traditional questions and group discussions are still required. Furthermore, with the development of the Internet, it has also had a certain impact on the development of computer-assisted instruction. Many institutions have begun online courses. Students can obtain learning materials through the Internet and communicate with teachers and classmates through the Internet. This type of teaching is also called distance learning. However, most of the learning materials for this kind of study are 200534193. Students can only use one-way e-mail to get ten R ^. However, it is difficult for all students to participate in and understand the discussion process through #such communication =. . , Shang Lei 2 'Can provide tools for students and teachers or students to transparently discuss each other, and students in the classroom can share discussions within the valley and join the theory, even remote students who are not in the classroom to learn synchronously It can also be added, which will increase the sense of participation in learning and achieve the purpose of increasing learning interest. [Summary of the Invention] One of the purposes of this invention is to provide a method and system for sharing teaching whiteboards, so that multiple clients can share online whiteboards through a server, so as to achieve the effect of common discussion. Another purpose of the present invention is to provide a system for sharing a teaching whiteboard, which firstly achieves the effect that the discussion content on the teaching whiteboard can be updated immediately. The method for sharing a teaching whiteboard of the present invention is for multiple users. The server can share the online whiteboard through the server, including: A) The clients can download an online whiteboard data from the server 'to open a display #the whiteboard picture of the whiteboard data; B) If the clients When any one of the clients edits the whiteboard day and day, upload the edited update data to the server; and) Right: when the dedicated user 'opens the whiteboard screen', these clients will download from the server in due course. The update information of the whiteboard enables the whiteboard images opened by the clients to be updated simultaneously. 20 200534193 The function of the present invention can provide a method and system for sharing a teaching whiteboard, which not only enables users to use the whiteboard to communicate and discuss, but also allows users to obtain updated information of the whiteboard in real time, so as to achieve the purpose of interactive teaching. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the following detailed description of a preferred embodiment with reference to the accompanying drawings. Referring to FIG. 1, a preferred embodiment of the shared teaching whiteboard system of the present invention includes a server 1 and a plurality of electronic devices 21 and 22 belonging to each user, and each of the electronic devices 21 and 22 and the server 1 can pass through a network. Communicate with each other. Since this embodiment is implemented on a campus, the network between the electronic devices 21, 22 and the temple server 1 is a local area network. An electronic device includes at least a display screen for displaying information, an input device for inputting data by a user, and a network device for connecting to a network. The electronic device may be a personal computer, a notebook computer, a personal digital assistant, and a tablet. Computer, etc. In this example, the electronic devices 21 and 22 are described using a tablet computer as an example, so a user can input information through a stylus. The identity of each user can be a student or teacher in the classroom. A teaching whiteboard management program and a database (not shown) for storing teaching whiteboard information are installed in the server 1 and a shared teaching is installed in each of the electronic devices 21 and 22. Whiteboard program (not shown). The functions of the programs and the interaction flow between the electronic devices 21, 22 and the server 1 will be explained in the description in the following paragraphs. In the following, the shared teaching whiteboard process on the client side will be explained first with reference to FIG. 2. When class starts in class, let users start their electronic equipment. 200534193 Set 21, 22㈣Shared teaching whiteboard program m artists to know, or make the shared teaching whiteboard program a resident program. After the shared teaching whiteboard program is started, in step 3 of your hometown, ask each user to log in to the server through the network. Various user data, such as the user name and password, are stored in the server 丨 T, so that the user can log in only when the user logs in, and ^ Rishou verifies that the uploaded user data is correct. Secondly, at step 32, the user downloads a whiteboard list to the electronic devices 21 and 22 after logging in to the server i. As shown in Fig. 6, Shi Zhiyi Circle b This whiteboard list 01 contains ίο 15 There are a number of all whiteboards 611, 612, 613 that are currently online. Here, since this example is planned to be used on campus for many courses, the database of server i will also store the schedules of each user, so when the user logs in to server i, it is the user that corresponds to m. The list of whiteboards that should be in class at the time, so although the same time, the list of whiteboards downloaded by users in different classrooms is also different. Then, when each user wants to participate in or watch the discussion content of any whiteboard, he can click on the whiteboards 611, 612, and 613 to open the corresponding whiteboard screen. Therefore, in step 33, it is detected whether any of the whiteboards 61, 612, 613 is clicked. If it is detected in step 33 that the whiteboards 611, 612, and 613 are clicked, step 34 is performed. If it is not detected that the whiteboards 611, 612, and 612 are selected in step 33, step 37 is performed. In step 34, download the whiteboard information to which this whiteboard name belongs from the server, and then say that the data edited by other users for this whiteboard is first opened to open a whiteboard screen 62 (as shown in the figure. After that, the user can use this whiteboard). The day surface 62 is edited, for example, directly drawing or pasting pictures with a stylus, etc. (to be described later). 20 5 10 15 20 200534193 Since each user may edit the whiteboard, at step 35 t ' The shared teaching whiteboard program will periodically update the data of the selected whiteboard (referring to the whiteboard screen displayed on the display screen of the electronic device), so that the whiteboard draws _'s action (to be described later). The whiteboard screen used has been edited by the space editor or the user has added a whiteboard screen to discuss new issues. Therefore, in step 36, the shared whiteboard program will periodically update the whiteboard list w, so that the newly added whiteboard can be displayed in real time. The whiteboard list of the user is on the list. In addition, although in this embodiment, the selected whiteboard information and the whiteboard name are updated in step 35 and%, the user is familiar with the technique. It should be understood that the execution order of steps two and 36 can be adjusted according to the designer's needs, or even executed simultaneously, and is not limited to the disclosure in this embodiment. If it is determined in step 33 that there are no whiteboards 611, 612,时 When clicked, skip to step 37 and continue to detect whether the user has added it by itself-brand new = painting: refers to a blank white board daytime surface). If step 3 ”is true, sometimes the message on the new whiteboard screen is uploaded to server 1. This :::: Information about who opened the new whiteboard screen refers to the user who opened this: whiteboard: face The user name allows other users to update the whiteboard name as early as 6… to know immediately that the new whiteboard is added by ==, and the whiteboard added by the user is used as the two in = ::: On the right of editing and editing in step 3 7, if it is judged as NO, skip back to + to check whether the user has a little choice of _ whiteboard action. A to continue to pick 9 200534193 It should be noted that _ has different conditions in steps 33 and 37 Fortunately, the user has turned on the whiteboard day and night. However, those skilled in the art should know that the order of steps 33 and 37 can be adjusted according to the needs of the designer, and can even be performed at the same time, and should not be limited to the disclosure in this embodiment. Figure 3 shows the example of the process of updating the selected whiteboard data in this embodiment. In this example, it is assumed that the user has turned on the board surface 62. —First ’In step 350, the first update interval is set to determine the interval between the 15 and 20 updates of the whiteboard data. The first update interval can be set by the user or predicted by the designer. The update interval of this example is directly set by the preset time value (such as 0.3 seconds) set by the setter. : In addition to the whiteboard screen Q opened by the user, in addition to other users may be on it, or flat car ears, they may also be special and flat, so if the user is editing, the whiteboard screen is constantly updated, When the user's distressed series will be formed, the helmet item ㈣ ♦ sighs in her example and sighs when the user is editing A μ μ, anti-dan face 62, until the user edits, you need to update the white board day face. Therefore, in step 351, first determine whether a user has written on the whiteboard and the whiteboard action is started. If it is judged in step 351 sometimes, execute::? The timer (not shown) stops timing. If it is determined in step 351 that step 3 5 5 is subscribed at all times, the word + sun crying and bow bow warrior action can be edited by the field user on the whiteboard surface 62. Use an input device such as a stylus to draw on the whiteboard. and many more. The 4th series of strokes, or pictures posted on the whiteboard screen 62 by the user 10 200534193 In addition to stopping the timer in v352, the update data (such as strokes or pictures) generated by the user will be displayed. On the screen 62 of the heart panel, the data is more up-to-date. After ㈣M2 ends, step 353 is performed to detect whether the editing of the whiteboard editing operation is completed. Ίο 15 If the end of the editing whiteboard operation is accumulated in step 353, step 354 is performed. For example, if the user performs a whiteboard editing operation with a stylus, when the stylus is lifted (that is, the stroke ends), it represents the end of the editing whiteboard operation. When the user performs a whiteboard editing operation with a picture, the picture starts with Paste the whiteboard for 62 days, which means that the editing of the whiteboard is over. On the contrary, when 53 does not detect the end of the whiteboard, skip to step 352, and continue to: Second: stop timing and let the editing whiteboard display and record, Until the editing of the whiteboard is finished. Editing white = 5 ::, upload the updated data (referred to as the material) of the recorded whiteboard picture 62 to the feeder ^, so that the feeder 1J will record all users for White 4 in real time. Skip back to step 35 and perform the flat-panel action. When the user has not edited the whiteboard in step 354, execute step ， and start counting. After step 355, go to step 356. = 'Step 356 determines whether the time counted by the timer is New interval time (for example, if J is judged to be * when counting, then continue to step 357. If step = second): _ Skip back to step 351 to detect if there are no days:, until _ to ⑽ Edit the white ⑽ work ㈣ 7 work ㈣ ride time interval. In this embodiment, the second one: =, ^…, die because the whiteboard has not been edited 20 5 10 15 20 200534193 and let the timer edit the whiteboard When in action; step: == over = detect _ :: over: =, the editing whiteboard action is detected to generate two: device ::, first ^ 苐-until the update interval time. In this embodiment < When the whiteboard action is suspended, the timer will be stopped. The next time, when the edited whiteboard action is generated, the timer will restart to count the number of U until the time when no edited whiteboard action is generated reaches the update interval. Step 357 is performed. In step 357, a selected whiteboard data is generated. New request and upload = server i. This whiteboard data update request will contain the name of the whiteboard Q that is being opened, the user name ', so that the feeder ^ can clarify the selected whiteboard update data that the user wants, and the server When receiving this request, if there is qualified update data, the selected whiteboard update data will be transmitted back to the user (more on this later). 'Then in step 358, continue to determine whether there is any The selected whiteboard of the server 1 updates the data. If sometimes, step 359 is performed to update the data to display the selected whiteboard update data on the whiteboard screen 62. Otherwise, if it is judged that there is no in step 358, go back to step 351. Similarly, after step 359 ends, it also returns to step 351 to continuously upload the update data generated by the user's editing whiteboard action and download the update data generated by other users. 'Each user will update due to his editing whiteboard action. The data is uploaded to the server ③1, the server 1 has the latest and most complete whiteboard data, and each user will download the selected whiteboard update data from the server, 1 from time to time, so that the 12 5 10 15 20 200534193 whiteboard screen 62 In addition to changes due to their own editing whiteboard actions, there will also be updated data generated by other users' editing of whiteboard day-to-day editing whiteboard actions. Therefore, the whiteboard screen 62 of each user can be used by the user to edit the whiteboard action to express opinions, and other users can also perform the whiteboard editing action on the same-whiteboard screen 62 to participate in the discussion, and the results of these discussions can be displayed immediately Place on the whiteboard screen of all users ^ to provide a tool for interactive discussion among users, and then increase the user's sense of participation and attention to achieve the effect of interactive teaching. … ^ Let's use Figure 4 to explain an example of the updated process in this example. First of all, in step 360, Jin Chu—φ * will update the list of whiteboards 61 _ each time; Γ ㈣ ′ can be determined by the designer before the second S interval time is preset by the designer. For example, 3 seconds, the second update interval time sets the second update interval time. Step 360 is based on the preset value. Second, in step 361, 舛 拄 π 0 is performed every second update interval: 2 o'clock. In this example, it is set so that the timer count time is the new time of the second update operation early 61 '. For example, if the second-more :::: multiple times, the state timer counts to 3 seconds, 6 seconds, 9 seconds, /, / a1 is 3 seconds, then count, and then determine in step 362 +, judge : Wait for the update time. When it is judged as yes in step 362, 'step 36 = new time' is performed, and jump back to step 362 to continue to wait. Step 362 is judged as being the new time in step 363. Health-Whiteboard list update request and upload 13 200534193 Server1. This whiteboard list update request contains the user name. When server i receives this whiteboard list update request, it will use this user's list of changes from the previous download to this time as the whiteboard list update data (refer to the same Whiteboards added by users belonging to this course) are passed back to users. Next, in step 364, it is determined whether there is any whiteboard list update data received from the server}. If it is judged that step 364 is sometimes performed, step 365 is performed to perform data update, so that the whiteboard list update data is displayed in the whiteboard list M, and each user can immediately know whether someone has added a whiteboard. Conversely: if it is judged as negative in step 364, 'skip back to step 362 and wait for the next update. Similarly, after step 365', skip back to step 362 to wait for the next update time. In this way, with the design of the process of updating the whiteboard list in FIG. 4, all users can immediately know the whiteboards added by others, and then join the discussion to achieve the effect of providing an interactive discussion environment. Finally, in conjunction with FIG. 5, the server 1 is used to explain the flow of the teaching whiteboard sharing method in this example. First, at step towels, it is determined whether a new user is logged in. If it is judged in step 41, step 42 is executed. If no at step 41, skip to step 43. In step 42, the server confirms that the identity of the new user is correct, and transfers the whiteboard list of the courses that the new user should be taking to the new user according to the curriculum. After step 42 ends, step 43 is performed. In step 43, the server server determines whether a whiteboard list update request has been received from the client. If it does, go to ㈣44. If not, execute 14 5 10 15 20 200534193 :: 2 :. In step 44, the server 1 filters and sends the data to be changed from the database: the whiteboard list is from the user ’s previous request to this request. After: 2: Update the data for the whiteboard list and send it back to the user. Step ... Shun Jun skip to step 45. Next ', in step 45, the server i determines whether there is a request received due to the selection of two Γ / sheng, that is, the request generated by the user clicking on the white board 612 in the white board list 61. If it is judged that step 4 ”is sometimes performed, then step 46 is executed, the server 丨 雔 +, link ~ n 1 returns the whiteboard information corresponding to the selected whiteboard to the user, so that the user can open a whiteboard written based on this whiteboard information ... and vice versa ' If it is judged to be none in step 45, skip to step Dang. However, after step 46, step 47 is also continued. In step 47, 'server i determines whether a selected whiteboard data update request has been received. If step 47 If it is judged sometimes, go to step 48. Otherwise, if it is judged as no in step 47, go to step 49. In step 48, the server 丨 will filter the selected whiteboard from the database according to the selected whiteboard data update request and select this user Change the data between the previous request and the current request as the update information of the selected whiteboard and send it back to the user, so that the user can update the whiteboard drawing 62 in real time. After step 48, step 49 is performed. In step 49, the server i determines whether there is Received the data uploaded from the user. This uploaded data may be the message that opens the daytime of the new whiteboard or the update data generated by the editing whiteboard action. It is judged in step 49 that sometimes, execute In step 50, the uploaded data is stored in the database to update the database in a timely manner. On the other hand, if it is judged that there is no time in step 49, skip to step 41. Similarly, after step 15 200534193 48 ends, skip to step 41. Therefore, this step The server of the embodiment is mainly used to store updated data of all whiteboards and updated whiteboard lists uploaded from each user, so that server 1 has the most complete and up-to-date whiteboard list 61 and whiteboard data, and can then respond to each user ’s Update request to return the corresponding update data to the user. On the same day, because Feeder 1 needs to download the corresponding data when the user requests it, in order to effectively reduce the workload of the server, and then achieve the stability of the system -It should be noted that although steps 41, 43, 45, 0, ^ 49 are judged sequentially in this embodiment, those skilled in the art should know that after steps q, 43, 45, 47, 49 The order can be adjusted according to the needs of the designer, and can also be judged at the same time, and should not be limited to the description of this embodiment. According to the foregoing, the method and system for sharing a teaching whiteboard of the present invention can indeed provide Allow students and teachers or students to use computers to discuss each other, and students in the classroom can share the discussion content and join the discussion in real time, even students who are not in the classroom at the same time can also join to increase The sense of participation in learning, thereby achieving the purpose of increasing learning fun. Lu Wei mentioned above is only a preferred embodiment of the present invention. When the scope of implementation of the present invention cannot be limited in this way, that is, the scope of application for patents in accordance with the present invention And simple equivalent changes and modifications made in the description of the invention should still fall within the scope of the invention patent. [Simplified illustration of the drawings] FIG. 1 is a structural diagram of a preferred embodiment of a system for sharing a teaching whiteboard according to the present invention. 16 200534193 Figure 2 is a flowchart of the steps performed by the client in this embodiment; Figure 3 is a flowchart of updating the selected whiteboard in Figure 2; Figure 4 is a flowchart of updating the whiteboard list in Figure 2; Figure 5 is this embodiment Flow chart of the execution steps of the server; 5 FIG. 6 is a schematic diagram of an example of a whiteboard list in this embodiment; and FIG. 7 is a dayboard surface of the whiteboard in this embodiment Schematic diagram of a paradigm. 17 200534193 [Description of the main components of the diagram] 1 Server 61 21, 22 Electronic device 611 31 ~ 36, 350 ~ 359, 360 ~ 365 62, 41 ~ 50 steps Whiteboard list, 612, 613 Whiteboard Whiteboard daytime 18