freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

畢業(yè)設(shè)計(jì)-光纖網(wǎng)絡(luò)光信號(hào)實(shí)時(shí)監(jiān)測(cè)系統(tǒng)項(xiàng)目報(bào)告-全文預(yù)覽

  

【正文】 監(jiān)測(cè)模塊設(shè)計(jì)目標(biāo) ...................................................................................................................2 第 2 章 項(xiàng)目設(shè)計(jì) ................................................................................................................................................................4 項(xiàng)目總體設(shè)計(jì) .........................................................................................................................................................4 研究思路與技術(shù)路線 ............................................................................................................................................4 模塊選型與設(shè)計(jì) .....................................................................................................................................................5 AQ7275 OTDR 模塊介紹 ...............................................................................................................................5 GSM 模塊設(shè)計(jì) .................................................................................................................................................6 GPS 模塊設(shè)計(jì) ..................................................................................................................................................7 下位機(jī)管理模塊設(shè)計(jì) .....................................................................................................................................7 實(shí)時(shí)監(jiān)測(cè)上位機(jī)模塊設(shè)計(jì) ............................................................................................................................7 電源模塊設(shè)計(jì) .................................................................................................................................................8 軟件設(shè)計(jì) ..........................................................................................................................................................8 第 3 章 項(xiàng)目實(shí)現(xiàn) ................................................................................................................................................................8 數(shù)據(jù)庫(kù)連接模塊 .....................................................................................................................................................9 WEB瀏覽器端模塊 .................................................................................................................................................11 JAVA客戶端模塊 .................................................................................................................................................. 13 程序啟動(dòng)重連 .............................................................................................................................................. 14 保存文件 ....................................................................................................................................................... 14 讀取配置文件 .............................................................................................................................................. 17 Java 與下位機(jī) Socket 通信 ......................................................................................................................... 18 從 OTDR設(shè)備采集數(shù)據(jù) ............................................................................................................................. 22 事件是否發(fā)生變化算法 .............................................................................................................................. 24 發(fā)送 HTTP POST ........................................................................................................................................ 25 第 4 章 項(xiàng)目總結(jié) ............................................................................................................................................................. 26 項(xiàng)目技術(shù)總結(jié) ...................................................................................................................................................... 26 前臺(tái)頁(yè)面技術(shù) .............................................................................................................................................. 26 服務(wù)器和桌面客戶端技術(shù) ......................................................................................................................... 26 個(gè)人收獲與體會(huì) .................................................................................................................................................. 28 參考資料 .............................................................................................................................................................. 29 1 第 1 章 項(xiàng)目概述 項(xiàng)目背景 近年來(lái),多個(gè)路局報(bào)告了進(jìn)入維護(hù)期的二型車光纖網(wǎng)絡(luò)線路故障的事件。當(dāng)前采取高級(jí)修時(shí)整體更換被懷疑車廂的車底光纜、連接器電鉤光纖模塊的辦法,更換過(guò)程中需要拆除LJB 箱、車鉤、輔助空壓機(jī)、空調(diào)等各種設(shè)備,且無(wú)法進(jìn)行責(zé)任判定。 若測(cè)試 形成的軌跡是一條向下的曲線,它說(shuō)明了背向散射的功率不斷減小 ( 這是由于經(jīng)過(guò)一段距離的傳輸后發(fā)射和背向散射的信號(hào)都有所損耗 ) 。在這些點(diǎn)上,會(huì)有很強(qiáng)的背向散射光被反射回來(lái)。 2) 系統(tǒng)功能 ? 下位機(jī)設(shè)備實(shí)現(xiàn)光信號(hào)的獲取、解析、故障判定及故障信息上報(bào),實(shí)時(shí)監(jiān)測(cè)上位機(jī)完成波形分析、光信號(hào)統(tǒng)計(jì)信息的獲取及在線故障判定。故障信息保存容量大于 1000 條,斷電后信息不丟失。 圖 21 光網(wǎng)絡(luò)實(shí)時(shí)信號(hào)監(jiān)測(cè)系統(tǒng)設(shè)計(jì)方案 其中: ( 1) OTDR 模塊:負(fù)責(zé)定位光路故障點(diǎn),分析故障類型及故障產(chǎn)生的具體位置; ( 2) GSM模塊:負(fù)責(zé)將故障信息發(fā)送至地面接收端,并傳遞地面接收端的查詢信息; ( 3)
點(diǎn)擊復(fù)制文檔內(nèi)容
研究報(bào)告相關(guān)推薦
文庫(kù)吧 www.dybbs8.com
備案圖鄂ICP備17016276號(hào)-1