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href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_jwjjg/">機(jī)械五金加工</a>?<a href="http://www.cdcfah.com/cp/third-jwjjg_jjg/">鈑金加工</a>?北京4G-DTU外殼網(wǎng) 誠信互利滄州萬瑞電子機(jī)箱供應(yīng)</p><div id="y0uus80" class="leftbox clearfix"><h1>北京4G-DTU外殼網(wǎng) 誠信互利滄州萬瑞電子機(jī)箱供應(yīng)</h1><div id="6y2uuaw" class="proBig"><div id="caq0ous" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/20/11/637018974438852467_nhsdo_9907535.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o2us0i8" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/20/11/637018974438852467_nhsdo_9907535.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ie0ygoc" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>河北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京4G-DTU外殼網(wǎng),4G-DTU外殼</p><p><span>***更新：</span>2020-06-16 20:11:11</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="e0sqyma" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">滄州萬瑞電子機(jī)箱有限公司</a></p><p><span>聯(lián)系人：</span>李文超</p><p><span>郵箱: </span>2816163037@qq.com</p><p><span>電話: </span>19103271861</p><p><span>傳真: </span>0317_4371300</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0317-4371300</p><p><span>地址: </span>河北省滄州市青縣農(nóng)場四分場</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="o8m0yeu" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ge0q8yu" class="box"><p><p style="text-indent:25px">實質(zhì) DTU**基本的用法是:在DTU中放入一張開通GPRS功能的SIM卡，北京4G-DTU外殼網(wǎng)，北京4G-DTU外殼網(wǎng)，DTU上電后先注冊到GPRS網(wǎng)絡(luò)，然后經(jīng)過GPRS網(wǎng)絡(luò)和數(shù)據(jù)處理中心樹立銜接，如右圖所示。這條銜接觸及了無線網(wǎng)絡(luò)運(yùn)營商，因特網(wǎng)寬帶供貨商，用戶公司的網(wǎng)絡(luò)狀況，以及用戶的電腦裝備等環(huán)節(jié)，因而要樹立這條銜接需求把各部分都裝備好。在實質(zhì)上，DTU和數(shù)據(jù)處理中心樹立的是SOCKET銜接。DTU是SOCKET客戶端，數(shù)據(jù)處理中心是SOCKET的服務(wù)端。SOCKET銜接有TCP協(xié)議和UDP協(xié)議之分，DTU和中心要運(yùn)用相同的協(xié)議，這個一般都有裝備軟件進(jìn)行裝備，北京4G-DTU外殼網(wǎng)。給DTU裝備好中心的IP地址和端口號后，則把DTU經(jīng)過串口和用戶的設(shè)備相連。北京4G-DTU外殼網(wǎng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京4G-DTU外殼網(wǎng),4G-DTU外殼" src="http://tyunfile.71360.com/UpLoadFile/2019/8/20/11/637018974438852467_nhsdo_9907535.jpg"></div><p style="text-indent:25px">因而只有DTU是不能完結(jié)數(shù)據(jù)的無線傳輸?shù)模€需求有后臺軟件的配合一起運(yùn)用。在樹立銜接后，前端的設(shè)備和后臺的中心就能夠經(jīng)過DTU進(jìn)行無線數(shù)據(jù)傳輸了，并且是雙向的傳輸。 DTU現(xiàn)已廣（guang）泛運(yùn)用于電力、環(huán)保、LED信息發(fā)布、物流、水文、氣候等職業(yè)領(lǐng)域。如上圖所示，雖然運(yùn)用的職業(yè)不同，但運(yùn)用的原理是相同的。大都是DTU和職業(yè)設(shè)備相連，比方PLC，單片機(jī)等主動化產(chǎn)品的銜接，然后和后臺樹立無線的通訊銜接。在互聯(lián)網(wǎng)日益發(fā)展的今（jin）天，DTU的運(yùn)用也越來越廣（guang）泛。它為各職業(yè)以及各職業(yè)之間的信息、工業(yè)融合供給了協(xié)助。北京4G-DTU外殼網(wǎng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京4G-DTU外殼網(wǎng),4G-DTU外殼" src="http://tyunfile.71360.com/UpLoadFile/2019/8/20/11/637018974438696224_nhsdo_5700680.jpg"></div><p style="text-indent:25px">關(guān)于DTU來說，只需樹立了與數(shù)據(jù)中心的雙向通訊，完結(jié)用戶串口數(shù)據(jù)與GPRS網(wǎng)絡(luò)數(shù)據(jù)包的轉(zhuǎn)換就相對簡單了。一旦接收到用戶的串口數(shù)據(jù)，DTU就當(dāng)即把串口數(shù)據(jù)封裝在一個TCP/UDP包里，發(fā)送給數(shù)據(jù)中心。反之，當(dāng)DTU收到數(shù)據(jù)中心發(fā)來的TCP/UDP包時，從中取出數(shù)據(jù)內(nèi)容，當(dāng)即經(jīng)過串口發(fā)送給用戶設(shè)備。經(jīng)過有線的數(shù)據(jù)收集中心，一起與許多個GPRS DTU進(jìn)行雙向通訊。這是現(xiàn)在GPRS DTU運(yùn)用體系中**為常用的辦法。運(yùn)用領(lǐng)域 DTU的主要功能是把遠(yuǎn)端設(shè)備的數(shù)據(jù)經(jīng)過無線的辦法傳送回后臺中心。如右圖所示，要完結(jié)數(shù)據(jù)的傳輸需求樹立一套完好的數(shù)據(jù)傳輸體系。在這個體系中包含:DTU，客戶設(shè)備、移動網(wǎng)絡(luò)、后臺中心。在前端，DTU和客戶的設(shè)備經(jīng)過232或許485接口相連。DTU上電運(yùn)轉(zhuǎn)后先注冊到移動的GPRS網(wǎng)絡(luò)，然后去和設(shè)置在DTU中的后臺中心樹立SOCKET銜接。后臺中心作為SOCKET的服務(wù)端，DTU是SOCKET銜接的客戶端。</p><p style="text-indent:25px">軟件組成 4.1 TCP/UDP透明數(shù)據(jù)傳輸;支撐多種作業(yè)辦法。心跳包技能 4.2 智能防掉線，支撐在線檢測，在線堅持，掉線主動重?fù)埽_保設(shè)備長久在線 4.3 支撐RSA，RC4加密算法 4.4 支撐虛擬值守VWM(Virtual Man Watch)功用，確保體系安穩(wěn)牢靠 4.5 支撐虛擬數(shù)據(jù)**網(wǎng)(APN/VPDN) 4.6 支撐數(shù)據(jù)中心動態(tài)域名和IP地址訪問 4.7 支撐DNS動態(tài)獲取，防止DNS服務(wù)器失常導(dǎo)致的設(shè)備當(dāng)機(jī) 4.8 支撐雙數(shù)據(jù)中心備份 4.9 支撐多數(shù)據(jù)中心一起承受數(shù)據(jù) 4.10支撐短信、語音、數(shù)據(jù)等喚醒辦法以及超時斷開網(wǎng)絡(luò)聯(lián)接 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京4G-DTU外殼網(wǎng),4G-DTU外殼" src="http://tyunfile.71360.com/UpLoadFile/2019/8/20/11/637018974442758542_nhsdo_4663619.jpg"></div><p style="text-indent:25px">支撐主動心跳，堅持長久在線 GPRS通訊網(wǎng)絡(luò)的利益之一就是支撐GPRS終端設(shè)備長久在線，因而典型的GPRS DTU在規(guī)劃上都支撐長久在線功用，這就要求DTU包含了上電主動撥號、選用心跳包堅持長久在線(當(dāng)長期沒有數(shù)據(jù)通訊時，移動網(wǎng)關(guān)將斷開DTU與中心的聯(lián)接，心跳包就是DTU與數(shù)據(jù)中心在聯(lián)接被斷開之前發(fā)送一個小數(shù)據(jù)包，以堅持聯(lián)接不被斷開)、支撐斷線主動重連、主動重?fù)芴柕忍厣?4)支撐參數(shù)裝備，長久保存 GPRS DTU作為一種通訊設(shè)備，其運(yùn)用場合非常廣（guang）泛。在不同的運(yùn)用中，數(shù)據(jù)中心的IP地址及端口號，串口的波特率等都是不同的。因而，GPRS DTU都應(yīng)支撐參數(shù)裝備，并且將裝備好的參數(shù)保存內(nèi)部的長久存儲器件內(nèi)(一般為FLASH或EEPROM等)。一旦上電，就主動按照設(shè)置好的參數(shù)進(jìn)行作業(yè)。北京4G-DTU外殼網(wǎng)</p><p style="text-indent:25px">北京4G-DTU外殼網(wǎng)</p><p style="text-indent:25px">現(xiàn)場運(yùn)用一. 電力職業(yè):1.電力長途抄表, 2.變電站監(jiān)測, 3.電力線路監(jiān)測 , 4.配電網(wǎng)絡(luò)柱上開關(guān)監(jiān)測體系 DTU在電力長途抄表中運(yùn)用拓?fù)鋱D: 二. 水利職業(yè): 1.水質(zhì)監(jiān)測, 2.水庫閘門長途操控體系計劃, 3.水利GPRS調(diào)度體系運(yùn)用計劃 4.水管網(wǎng)監(jiān) 測體系, 5.水庫主動監(jiān)測體系三. 石油職業(yè): 1油氣井的長途監(jiān)控, 2.GPRS長途油田主動化監(jiān)測監(jiān)控體系, 3.燃?xì)夤芫W(wǎng)監(jiān)控體系計劃四. 市政職業(yè) : 1.路燈長途監(jiān)控辦理 2.管網(wǎng)長途監(jiān)測 3.城市能耗監(jiān)測五. 環(huán)保職業(yè) : 1.污染源監(jiān)測 2.大氣環(huán)境監(jiān)測 3.噪音監(jiān)測 4.粉塵監(jiān)測六. 農(nóng)業(yè)運(yùn)用: 1.大棚長途監(jiān)測辦理 2.水產(chǎn)養(yǎng)殖監(jiān)測辦理農(nóng) 3.業(yè)水泵監(jiān)測辦理七. 其它職業(yè): 1.倉庫監(jiān)控辦理. 2.電梯長途監(jiān)控 3.長途起重機(jī)辦理體系 4.工業(yè)能耗監(jiān)測方面的運(yùn)用 5.加油站GPRS數(shù)據(jù)收集體系 6.GPRS氣候信息收集體系北京4G-DTU外殼網(wǎng)</p><p style="text-indent:25px">滄州萬瑞電子機(jī)箱有限公司創(chuàng)立于2016-01-27，是一家生產(chǎn)型公司。萬瑞電子機(jī)箱供應(yīng)致力于為客戶提供質(zhì)量的[ "鈑金設(shè)備外殼加工", "機(jī)箱機(jī)柜加工定做", "儀器儀表外殼", "配電箱加工" ]，一切以用戶需求為中心,深受廣大客戶的歡迎。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供質(zhì)量的產(chǎn)品及服務(wù)。截止當(dāng)前，我公司年營業(yè)額度達(dá)到50-100萬元，爭取在一公分的領(lǐng)域里做出一公里的深度。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/281848.html</p></div></div></div></div></div><div id="0uiywsg" class="page-right twoColRt"><div id="ayockqe" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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