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tcPro"><section class="home-main container clearfix"><div id="2mnkryk" class="twoCol"><div id="nmyamof" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_sjpjbx/">手機(jī)配件</a>?<a href="http://www.cdcfah.com/cp/third-sjpjbx_lyspqux/">藍(lán)牙適配器</a>?沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好歡迎來電上海磐笙電子科技供應(yīng)</p><div id="3oah2bv" class="leftbox clearfix"><h1>沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好歡迎來電上海磐笙電子科技供應(yīng)</h1><div id="xro2e77" class="proBig"><div id="irdpjqx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345501692822266/6707918.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ispryah" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345501692822266/6707918.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zdvxz3o" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好,BLE藍(lán)牙模塊</p><p><span>***更新：</span>2021-01-21 00:21:19</p><p><span id="click" >瀏覽次數(shù)：17次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nrykriz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海磐笙電子科技有限公司</a></p><p><span>聯(lián)系人：</span>丁白蘭</p><p><span>郵箱: </span>258787059@qq.com</p><p><span>電話: </span>15002148001</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.panshion.cn</p><p><span>手機(jī): </span>021-31775145</p><p><span>地址: </span>羅城路530號(hào)住大商務(wù)樓A樓403室</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="27e8fzv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="wawyfry" class="box"><p><p style="text-indent:25px">藍(lán)牙5.0BLE模塊：藍(lán)牙5.0在低功耗技術(shù)(BLE)可提供2倍的傳輸速率、8倍的廣播能力、4倍的覆蓋范圍，尤其藍(lán)牙5，沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好.0還針對(duì)物聯(lián)網(wǎng)進(jìn)行了底層優(yōu)化，力求以更低的功耗和更強(qiáng)的性能為物聯(lián)網(wǎng)服務(wù)，因此，越來越多的物聯(lián)網(wǎng)應(yīng)用、智能家居方案開始將藍(lán)牙模塊納入選型范圍內(nèi)，沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好。藍(lán)牙模塊的分類按照應(yīng)用和支持協(xié)議劃分主要分為兩種：經(jīng)典藍(lán)牙模塊（BT）：泛指支持藍(lán)牙協(xié)議在4，沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好.0以下的模塊，一般用于數(shù)據(jù)量比較大的傳輸，如：語音、音樂等較高數(shù)據(jù)量傳輸。經(jīng)典藍(lán)牙模塊可再細(xì)分為：傳統(tǒng)藍(lán)牙模塊和高速藍(lán)牙模塊。傳統(tǒng)藍(lán)牙模塊在2004年推出，主要表示是支持藍(lán)牙2.1協(xié)議的模塊，在智能手機(jī)爆發(fā)的時(shí)期得到普遍支持。BLE藍(lán)牙模塊數(shù)據(jù)速率比較低的產(chǎn)品。沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345501692822266/6707918.png"></div><p style="text-indent:25px">BLE藍(lán)牙模塊是極為常用的一種無線通信模塊，其普遍應(yīng)用于各種各類智能設(shè)備，主要應(yīng)用包括：定位標(biāo)簽，資產(chǎn)追蹤，運(yùn)動(dòng)及健身傳感器，醫(yī)療傳感器，智能手表，遙控器，玩具等。BLE藍(lán)牙模塊：是指支持藍(lán)牙協(xié)議4.0或更高的模塊，也稱為BLE模塊（Bluetooh Low Energy Module），特點(diǎn)是成本和功耗的降低，應(yīng)用于實(shí)時(shí)性要求比較高，但是數(shù)據(jù)速率比較低的產(chǎn)品。如：遙控類的（鼠標(biāo)、鍵盤）、傳感設(shè)備的數(shù)據(jù)發(fā)送（心跳帶、血壓計(jì)、溫度傳感器）等。相比傳統(tǒng)藍(lán)牙技術(shù)，低功耗藍(lán)牙技術(shù)所增加的一項(xiàng)新功能就是“廣播”功能。通過這項(xiàng)功能，從設(shè)備可以告知其需要向主設(shè)備發(fā)送數(shù)據(jù)。長沙ble藍(lán)牙模塊制造廠家當(dāng)用戶拿到BLE藍(lán)牙模組后，*需要通過串口就可以直接應(yīng)用在自己的項(xiàng)目中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502002519531/6368046.png"></div><p style="text-indent:25px">LL層是整個(gè)BLE協(xié)議棧的關(guān)鍵，也是BLE協(xié)議棧的難點(diǎn)和重點(diǎn)。像Nordic的BLE協(xié)議棧能同時(shí)支持20個(gè)link（連接），就是LL層的功勞。LL層要做的事情非常多，比如具體選擇哪個(gè)射頻通道進(jìn)行通信，怎么識(shí)別空中數(shù)據(jù)包，具體在哪個(gè)時(shí)間點(diǎn)把數(shù)據(jù)包發(fā)送出去，怎么保證數(shù)據(jù)的完整性，ACK如何接收，如何進(jìn)行重傳，以及如何對(duì)鏈路進(jìn)行管理和控制等等。LL層只負(fù)責(zé)把數(shù)據(jù)發(fā)出去或者收回來，對(duì)數(shù)據(jù)進(jìn)行怎樣的解析則交給上面的GAP或者ATT。HCI是可選的，HCI主要用于2顆芯片實(shí)現(xiàn)BLE協(xié)議棧的場合，用來規(guī)范兩者之間的通信協(xié)議和通信命令等。</p><p style="text-indent:25px">低功耗藍(lán)牙技術(shù)使用與傳統(tǒng)藍(lán)牙技術(shù)相同的自適應(yīng)跳頻（AFH）技術(shù)，因而能確保低功耗藍(lán)牙能夠在住宅、工業(yè)與醫(yī)療應(yīng)用中的“嘈雜”射頻環(huán)境中維持穩(wěn)定的傳輸。為了大程度地減少使用AFH的成本與功耗，低功耗藍(lán)牙技術(shù)已將通道數(shù)量從傳統(tǒng)藍(lán)牙技術(shù)的79個(gè)1兆赫茲寬通道減少至40個(gè)2兆赫茲的寬通道。相比傳統(tǒng)藍(lán)牙技術(shù)，低功耗藍(lán)牙技術(shù)所增加的一項(xiàng)新功能就是“廣播”功能。通過這項(xiàng)功能，從設(shè)備可以告知其需要向主設(shè)備發(fā)送數(shù)據(jù)。藍(lán)牙模塊根據(jù)溫度分為工業(yè)級(jí)和商業(yè)級(jí)。SKYLAB BLE藍(lán)牙模塊符合工業(yè)級(jí)標(biāo)準(zhǔn)，能夠適應(yīng)各種惡劣環(huán)境，工作溫度范圍達(dá)到：-40~85℃。BLE藍(lán)牙模塊低電平進(jìn)入低功耗模式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502260605469/5716040.png"></div><p style="text-indent:25px">BLE藍(lán)牙模塊主設(shè)備模式：工作在主設(shè)備模式,可以與一個(gè)從設(shè)備進(jìn)行連接。在此模式下可以對(duì)周圍設(shè)備進(jìn)行搜索并選擇需要連接的從設(shè)備進(jìn)行連接。理論上，一個(gè)藍(lán)牙主端設(shè)備，可同時(shí)與7個(gè)藍(lán)牙從端設(shè)備進(jìn)行通訊。一個(gè)具備藍(lán)牙通訊功能的設(shè)備，可以在兩個(gè)角色間切換，平時(shí)工作在從模式，等待其它主設(shè)備來連接，需要時(shí)，轉(zhuǎn)換為主模式，向其它設(shè)備發(fā)起呼叫。一個(gè)藍(lán)牙設(shè)備以主模式發(fā)起呼叫時(shí)，需要知道對(duì)方的藍(lán)牙地址，配對(duì)密碼等信息，配對(duì)完成后，可直接發(fā)起呼叫。藍(lán)牙模組的應(yīng)用場景非常普遍。沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好</p><p style="text-indent:25px">BLE藍(lán)牙模塊成本和功耗降低，應(yīng)用于實(shí)時(shí)性要求比較高。沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好</p><p style="text-indent:25px">BLE藍(lán)牙模塊由三個(gè)主要構(gòu)建模塊組成:應(yīng)用程序、主機(jī)和控制器。BLE藍(lán)牙模塊芯片極小，可以直接嵌入數(shù)字電表中。其工作采用2400～2483.5MHz的ISM(工業(yè)、科學(xué)和醫(yī)學(xué))頻段，這是因?yàn)樵擃l段內(nèi)沒有其它系統(tǒng)的固定信號(hào)干擾，同時(shí)頻段向公眾開放，頻段在全球范圍內(nèi)有效。但同時(shí)ISM頻段作為開放頻段，使用其中的任何頻段都會(huì)遇到不可預(yù)測的隨機(jī)干擾源(如某些家用電器、無繩電話和汽車開門器等)。：采用跳頻技術(shù)，抗信號(hào)衰落;采用快跳頻和短分組技術(shù)，減少同頻干擾，保證傳輸?shù)目煽啃?采用前向糾錯(cuò)(FEC)編碼技術(shù)，減少遠(yuǎn)距離傳輸時(shí)的隨機(jī)噪聲影響。沈陽**功耗藍(lán)牙ble模塊哪個(gè)牌子好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2933787.html</p></div></div></div></div></div><div id="ed28b23" class="page-right twoColRt"><div id="3ary7ta" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mqiubiu" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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