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class="twoCol"><div id="z8ivc2x" 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/">手機配件</a>?<a href="http://www.cdcfah.com/cp/third-sjpjbx_lyspqux/">藍(lán)牙適配器</a>?哈爾濱大眾藍(lán)牙模塊品牌來電咨詢上海磐笙電子科技供應(yīng)</p><div id="m4elnpj" class="leftbox clearfix"><h1>哈爾濱大眾藍(lán)牙模塊品牌來電咨詢上海磐笙電子科技供應(yīng)</h1><div id="sokxegn" class="proBig"><div id="yuv2kuq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502002519531/6368046.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="oxzgiur" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502002519531/6368046.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gkmugi8" 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>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>哈爾濱大眾藍(lán)牙模塊品牌,BLE藍(lán)牙模塊</p><p><span>***更新：</span>2020-12-01 10:23:37</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="3enjlsu" 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: </span>021-31775145</p><p><span>地址: </span>羅城路530號住大商務(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="mqszbdp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dg8q8ry" class="box"><p><p style="text-indent:25px">那么藍(lán)牙模塊到底是什么呢？藍(lán)牙模塊是一種集成藍(lán)牙功能的PCBA板，主要用于無線網(wǎng)絡(luò)通訊，按功能可分為藍(lán)牙數(shù)據(jù)模塊（HY-40R201P、HY-40R204P）和藍(lán)牙語音模塊。主要由芯片、PCB板、外圍器件構(gòu)成（一般模塊具有半成品的屬性，是在芯片的基礎(chǔ)上進(jìn)行加工。換言之，藍(lán)牙模塊一般具有二次開發(fā)的特性）。如：HY-40R204P藍(lán)牙模塊則是基于TI CC2640R2F 藍(lán)牙芯片，同時PCB板集成2，哈爾濱大眾藍(lán)牙模塊品牌，哈爾濱大眾藍(lán)牙模塊品牌.4G的PCB天線。藍(lán)牙模塊的作用簡單來說就是以無線連接取代有線連接，將固定和移動信息設(shè)備組成個人局域網(wǎng)，實現(xiàn)設(shè)備之間低成本的無線互連通信，哈爾濱大眾藍(lán)牙模塊品牌。BLE藍(lán)牙模塊使用藍(lán)牙技術(shù)通用的自適應(yīng)跳頻技術(shù)將2.4千兆赫ISM頻帶內(nèi)的其他技術(shù)干擾減至較小。哈爾濱大眾藍(lán)牙模塊品牌</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱大眾藍(lán)牙模塊品牌,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502002519531/6368046.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,可以與一個從設(shè)備進(jìn)行連接。在此模式下可以對周圍設(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，一個藍(lán)牙主端設(shè)備，可同時與7個藍(lán)牙從端設(shè)備進(jìn)行通訊。一個具備藍(lán)牙通訊功能的設(shè)備，可以在兩個角色間切換，平時工作在從模式，等待其它主設(shè)備來連接，需要時，轉(zhuǎn)換為主模式，向其它設(shè)備發(fā)起呼叫。一個藍(lán)牙設(shè)備以主模式發(fā)起呼叫時，需要知道對方的藍(lán)牙地址，配對密碼等信息，配對完成后，可直接發(fā)起呼叫。?？谄放芺le藍(lán)牙芯片BLE藍(lán)牙模塊高效的多路徑優(yōu)勢增加了鏈路預(yù)算和有效的運行范圍，同時也優(yōu)化了功耗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱大眾藍(lán)牙模塊品牌,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502331250000/9246697.png"></div><p style="text-indent:25px">阻礙BLE藍(lán)牙模塊傳輸距離的因素：1.使用高增益天線。通常，天線增益值與無線傳輸距離成正比。天線增益越高，傳輸距離越遠(yuǎn)。但是，天線增值也不可能存在無限大。2.BLE藍(lán)牙模塊的位置調(diào)整?。BLE藍(lán)牙模塊做位置的調(diào)整，比如偏移、架高，這樣BLE藍(lán)牙模塊的無線傳輸?shù)木嚯x能夠?qū)崿F(xiàn)更遠(yuǎn)。BLE藍(lán)牙模塊要實現(xiàn)良好的傳輸效果，要選好天線放置位置。放置位置可以偏高一些，盡可能做兩邊都在高處放置，要不一邊在較高地方向下輻射，減少障礙物的阻攔盡量減少信號的盲區(qū)也能實現(xiàn)更遠(yuǎn)傳輸距離;BLE藍(lán)牙模塊連接天線放置處于同一水平面，這樣的信號發(fā)送和接收的感應(yīng)面是較大的，傳輸距離也就更遠(yuǎn)。</p><p style="text-indent:25px">LL層是整個BLE協(xié)議棧的關(guān)鍵，也是BLE協(xié)議棧的難點和重點。像Nordic的BLE協(xié)議棧能同時支持20個link（連接），就是LL層的功勞。LL層要做的事情非常多，比如具體選擇哪個射頻通道進(jìn)行通信，怎么識別空中數(shù)據(jù)包，具體在哪個時間點把數(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。藍(lán)牙模塊主要由芯片、PCB板、外圍器件構(gòu)成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱大眾藍(lán)牙模塊品牌,BLE藍(lán)牙模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345501407324219/9380068.png"></div><p style="text-indent:25px">藍(lán)牙燈控解決方案主要以BLE藍(lán)牙模塊為基礎(chǔ),實現(xiàn)智能藍(lán)牙LED燈的色彩控制等功能。藍(lán)牙燈控方案說明：手機藍(lán)牙和彩燈上的藍(lán)牙模塊進(jìn)行配對，實現(xiàn)APP命令控制彩燈藍(lán)牙，實現(xiàn)不同的功能，比如可以通過色板、聲音調(diào)節(jié)喜歡的顏色、亮度等。BLE藍(lán)牙智能鎖方案：智能門禁鎖是在原有門禁系統(tǒng)的基礎(chǔ)上，增加低功耗藍(lán)牙透傳模塊，實現(xiàn)手機藍(lán)牙協(xié)議對接。智能手機通過APP調(diào)用藍(lán)牙服務(wù)，發(fā)送指令，智能門禁鎖接收藍(lán)牙指令，繼而控制智能門禁鎖的開關(guān)。藍(lán)牙模塊一般具有二次開發(fā)的特性。南通電視藍(lán)牙模塊經(jīng)銷商</p><p style="text-indent:25px">憑借BLE藍(lán)牙模塊功率控制，發(fā)射器可以自行調(diào)整其傳輸功率或者由對端設(shè)備請求更改其傳輸功率。哈爾濱大眾藍(lán)牙模塊品牌</p><p style="text-indent:25px">無線設(shè)備的世界正在迅速蔓延。自從無線電發(fā)明以來，不同的公司和研究中心就給他們的工程師和科學(xué)家們制定了相同的任務(wù)：創(chuàng)造市場上高效，成功，**的無線電模塊。偉大的無線電模塊不是那么容易定義，它通常取決于模塊必須解決的任務(wù)。在某些情況下，我們需要通過無線網(wǎng)絡(luò)發(fā)送大量數(shù)據(jù)，在這種情況下，我們通常不會要求低能耗。在其他情況下，我們有小型便攜式設(shè)備通知我們某些事件，這些設(shè)備使用電池供電，因此無線電模塊必須盡可能節(jié)能。當(dāng)我們談?wù)摴?jié)能無線電模塊，意味著它能夠以非常便宜的能源成本發(fā)送適量的數(shù)據(jù)時，一種無線電技術(shù)產(chǎn)品脫穎而出：藍(lán)牙低功耗模塊(BLE)。BLE藍(lán)牙模塊無線電的調(diào)制速率由規(guī)范規(guī)定為恒定的1Mbps(兆比特每秒)。當(dāng)然，這是理論上的上限。在實踐中，根據(jù)所使用設(shè)備的限制，您可以期望每秒5-10kb。就距離而言，BLE專注于非常短的距離通信?？梢詣?chuàng)建和配置一個BLE設(shè)備，該設(shè)備可以可靠地傳輸30米或30米以上的視線范圍內(nèi)的數(shù)據(jù)，但典型的操作范圍可能更接近2到5米。當(dāng)然，續(xù)航里程越高，電池消耗就越多，所以在調(diào)整你的設(shè)備以適應(yīng)更高的續(xù)航里程時要小心。哈爾濱大眾藍(lán)牙模塊品牌</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2222281.html</p></div></div></div></div></div><div id="74s8b4k" class="page-right twoColRt"><div id="7wf3qfr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3wsub8t" 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