上海全新藍(lán)牙頻率校準(zhǔn)使用方法深圳市小牛測控供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="藍(lán)牙設(shè)備所用波段是無需認(rèn)可的2.4GHzISM（工業(yè)、科研和醫(yī)療）波段。跳頻收發(fā)器用于對抗干擾及信號衰減，上海全新藍(lán)牙頻率校準(zhǔn)使用方法。定義了兩種調(diào)制模式。強(qiáng)制模式被稱為基本速率，使用一個成型的二進(jìn)制FM調(diào)制從而將收發(fā)器的復(fù)雜程度降至低?？?><meta name="keywords" content="上海全新藍(lán)牙頻率校準(zhǔn)使用方法,藍(lán)牙頻率校準(zhǔn)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="f8aceyc" class="twoCol"><div id="h97szbi" 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-_smdn/">數(shù)碼、電腦</a>?<a href="http://www.cdcfah.com/cp/second-smdn_sjpjgd/">手機(jī)配件</a>?<a href="http://www.cdcfah.com/cp/third-sjpjgd_lyspq/">藍(lán)牙適配器</a>?上海全新藍(lán)牙頻率校準(zhǔn)使用方法深圳市小牛測控供應(yīng)</p><div id="seb7aj7" class="leftbox clearfix"><h1>上海全新藍(lán)牙頻率校準(zhǔn)使用方法深圳市小牛測控供應(yīng)</h1><div id="r4wspm8" class="proBig"><div id="jarjlsm" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059440976563/1466858.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vht8pw3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059440976563/1466858.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dxurtkz" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海全新藍(lán)牙頻率校準(zhǔn)使用方法,藍(lán)牙頻率校準(zhǔn)</p><p><span>***更新：</span>2021-02-07 10:09:32</p><p><span id="click" >瀏覽次數(shù)：12次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jtv78kf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市小牛測控技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>陳先生</p><p><span>郵箱: </span>403310010@qq.com</p><p><span>電話: </span>13420972963</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>https://www.iodm.cn</p><p><span>手機(jī): </span>0755-21008225</p><p><span>地址: </span>深圳市龍華區(qū)東環(huán)二路69號慧華園廠房1棟411</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="puro8pr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cwogqsz" class="box"><p><p style="text-indent:25px">藍(lán)牙設(shè)備所用波段是無需認(rèn)可的2.4 GHz ISM（工業(yè)、科研和醫(yī)療）波段。跳頻收發(fā)器用于對抗干擾及信號衰減，上海全新藍(lán)牙頻率校準(zhǔn)使用方法。定義了兩種調(diào)制模式。強(qiáng)制模式被稱為基本速率，使用一個成型的二進(jìn)制FM調(diào)制從而將收發(fā)器的復(fù)雜程度降至低?？蛇x模式被稱為增強(qiáng)數(shù)據(jù)率，使用PSK調(diào)制并存在兩個變量：π/4-DQPSK和8DPSK。所有調(diào)制程序的符號率是1 Ms/s。就總空中傳輸數(shù)據(jù)率而言，基本速率為1 Mbps，上海全新藍(lán)牙頻率校準(zhǔn)使用方法，使用π/4-DQPSK的增強(qiáng)數(shù)據(jù)率為2 Mbps，而使用8DPSK的增強(qiáng)數(shù)據(jù)率為3 Mbps。藍(lán)牙技術(shù)在全球du通用的2.4GHz ISM（工業(yè)、科學(xué)、醫(yī)學(xué)）頻段，上海全新藍(lán)牙頻率校準(zhǔn)使用方法，藍(lán)牙的數(shù)據(jù)速率為1Mb/s。邏輯鏈路控制和適應(yīng)協(xié)議是負(fù)責(zé)數(shù)據(jù)拆裝、復(fù)用協(xié)議和控制服務(wù)質(zhì)量，是其他協(xié)議層作用實(shí)現(xiàn)的基礎(chǔ)。上海全新藍(lán)牙頻率校準(zhǔn)使用方法</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海全新藍(lán)牙頻率校準(zhǔn)使用方法,藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059440976563/1466858.png"></div><p style="text-indent:25px">藍(lán)牙4.0 依舊向下兼容，包含經(jīng)典藍(lán)牙技術(shù)規(guī)范和高速度24Mbps的藍(lán)牙高速技術(shù)規(guī)范。三種技術(shù)規(guī)范可單獨(dú)使用，也可同時運(yùn)行，現(xiàn)在的藍(lán)牙4.0已經(jīng)走向了商用。藍(lán)牙方案按照功能分類主要有藍(lán)牙數(shù)據(jù)解決方案（BCO4-B）、藍(lán)牙耳機(jī)解決方案，藍(lán)牙鍵盤解決方案等等。從軟硬件分，有些藍(lán)牙方案主要是針對硬件的，如CSR藍(lán)牙解決方案，Broadcom解決方案等?；谙嗤布?shí)現(xiàn)不同的功能的解決方案可以稱為軟件解決方案，如實(shí)現(xiàn)替代串口線功能和實(shí)現(xiàn)藍(lán)牙遙控器功能等，比如硬件都是使用BC04-B藍(lán)牙模塊，但是里面的固件則不一樣就是這種情況。上海二手藍(lán)牙頻率校準(zhǔn)價格設(shè)定藍(lán)牙芯片的初始頻率，然后對藍(lán)牙芯片的發(fā)射頻率值進(jìn)行檢測。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海全新藍(lán)牙頻率校準(zhǔn)使用方法,藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059155507813/797469.png"></div><p style="text-indent:25px">藍(lán)牙射頻收發(fā)器：負(fù)責(zé)接收或發(fā)送高頻通信無線電波；收發(fā)器和串行接口：是藍(lán)牙模塊與主機(jī)控制器連接的兩種接口方式，可根據(jù)連接方式選擇；測試模塊：除具有測試功能外，還提供有關(guān)認(rèn)證和規(guī)范，為可選模塊。*藍(lán)牙數(shù)據(jù)傳輸和數(shù)據(jù)安全*藍(lán)牙模塊將數(shù)據(jù)分成短而靈活的數(shù)據(jù)包，在每個數(shù)據(jù)包發(fā)送完成后，會以改變發(fā)送和接收的頻率，稱為跳頻技術(shù)（AFH）。藍(lán)牙技術(shù)系統(tǒng)中的底層硬件模塊由基帶、跳頻和鏈路管理。其中，基帶是完成藍(lán)牙數(shù)據(jù)和跳頻的傳輸。</p><p style="text-indent:25px">雖然在現(xiàn)階段，藍(lán)牙技術(shù)已經(jīng)在實(shí)際的生活與工作中有了較多的應(yīng)用，但是人們對于藍(lán)牙技術(shù)并沒有過多的認(rèn)識，除了在手機(jī)藍(lán)牙的傳輸功能與語音功能的應(yīng)用外，對于無線打印機(jī)、無線會議等藍(lán)牙應(yīng)用沒有足夠的認(rèn)識。因此，在未來的藍(lán)牙技術(shù)發(fā)展中，應(yīng)對藍(lán)牙技術(shù)進(jìn)行宣傳，將成本低和技術(shù)先進(jìn)的藍(lán)牙技術(shù)推廣在更普遍的應(yīng)用平臺中。 2、拓展藍(lán)牙技術(shù)的應(yīng)用領(lǐng)域藍(lán)牙技術(shù)的應(yīng)用領(lǐng)域要向廣度發(fā)展。藍(lán)牙技術(shù)的首階段是支持手機(jī)、PDA和筆記本電腦，接下來的發(fā)展方向要向著各行各業(yè)擴(kuò)展，包括汽車、信息加點(diǎn)、航空、消費(fèi)類電子、jun用等。藍(lán)牙頻率晶振頻偏測試模塊完成藍(lán)牙模組頻偏的測試與校準(zhǔn)，主控MCU實(shí)現(xiàn)對整個系統(tǒng)各個模塊的控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海全新藍(lán)牙頻率校準(zhǔn)使用方法,藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059248261719/9068723.png"></div><p style="text-indent:25px">藍(lán)牙PCBA測試板的組成模塊有：電源供電模塊，TFTLCD模塊，BLE連接測試模塊，按鍵模塊，晶振頻偏測試模塊，主控MCU。電源供電模塊負(fù)責(zé)給待測PCBA進(jìn)行供電，TFTLCD模塊負(fù)責(zé)對測試結(jié)果進(jìn)行顯示，BLE連接測試模塊對鎖相環(huán)鎖定錯誤產(chǎn)生的頻偏進(jìn)行篩選，同時對晶振頻偏校準(zhǔn)結(jié)果進(jìn)行確認(rèn)；按鍵模塊控制測試過程的開始，晶振頻偏測試模塊完成藍(lán)牙模組頻偏的測試與校準(zhǔn)，主控MCU實(shí)現(xiàn)對整個系統(tǒng)各個模塊的控制。一種藍(lán)牙頻偏測試校準(zhǔn)方法，其特征在于該方法包括如下步驟：1、藍(lán)牙PCBA測試板上電，并進(jìn)行初始化；2、對待測藍(lán)牙模組DUT進(jìn)行上電，開始測試與校準(zhǔn)過程；3、通過調(diào)試接口，配置DUT輸出PWM方波，該方波頻率為500Hz，并計算PWM方波的平均頻率；全球范圍內(nèi)無需取得執(zhí)照的工業(yè)、科學(xué)和醫(yī)療用（ISM）波段的 2.4 GHz 短距離無線電頻段。上海全新藍(lán)牙頻率校準(zhǔn)使用方法</p><p style="text-indent:25px">無線調(diào)頻層是不需要授權(quán)的通過2.4GHz ISM頻段的微波，數(shù)據(jù)流傳輸和過濾就是在無線調(diào)頻層實(shí)現(xiàn)的。上海全新藍(lán)牙頻率校準(zhǔn)使用方法</p><p style="text-indent:25px">為什么要校準(zhǔn)藍(lán)牙設(shè)備？(1)保證較優(yōu)的用戶體驗(yàn)。(2)保證較優(yōu)功能。藍(lán)牙產(chǎn)品是完善的RF通信器件，使用復(fù)雜的軟件驅(qū)動操作。為實(shí)現(xiàn)完整的功能，還要求其他軟件組件，如產(chǎn)品的藍(lán)牙標(biāo)識符。在制造過程中必需對其進(jìn)行各方面測試，以保證其能夠在現(xiàn)場正確運(yùn)行。（3)校準(zhǔn)元器件和子系統(tǒng)。(4)篩查材料瑕疵和流程錯誤。工程師必須識別由于位移或漂移引起的器件性能異常所導(dǎo)致的性能實(shí)效。盡管這些故障源于器件供應(yīng)商，但這些故障較終將由設(shè)計或測試工程師負(fù)責(zé)處理和解決。上海全新藍(lán)牙頻率校準(zhǔn)使用方法</p><p style="text-indent:25px">深圳市小牛測控技術(shù)有限公司是一家電子產(chǎn)品、儀器、儀表上門安裝及技術(shù)維護(hù); 經(jīng)營進(jìn)出口業(yè)務(wù),^計算機(jī)軟件、嵌入式軟件、自動化設(shè)備軟件、生產(chǎn)測試軟件開發(fā)、生產(chǎn)及銷售；測試儀器、儀表及設(shè)備、自動化測試系統(tǒng)、測試治具、通訊設(shè)備器材、工業(yè)自動化控制系統(tǒng)、計算機(jī)硬件、計算機(jī)網(wǎng)絡(luò)設(shè)備的開發(fā)、生產(chǎn)和銷售；電子產(chǎn)品的技術(shù)開發(fā)、生產(chǎn)與銷售；測試儀器、儀表及設(shè)備、自動化測試系統(tǒng)、測試治具、通訊設(shè)備器材、工業(yè)自動化控制系統(tǒng)、計算機(jī)軟硬件、計算機(jī)網(wǎng)絡(luò)設(shè)備的開發(fā)、生產(chǎn)和銷售。的公司，是一家集研發(fā)、設(shè)計、生產(chǎn)和銷售為一體的專業(yè)化公司。小牛測控作為電子產(chǎn)品、儀器、儀表上門安裝及技術(shù)維護(hù); 經(jīng)營進(jìn)出口業(yè)務(wù),^計算機(jī)軟件、嵌入式軟件、自動化設(shè)備軟件、生產(chǎn)測試軟件開發(fā)、生產(chǎn)及銷售；測試儀器、儀表及設(shè)備、自動化測試系統(tǒng)、測試治具、通訊設(shè)備器材、工業(yè)自動化控制系統(tǒng)、計算機(jī)硬件、計算機(jī)網(wǎng)絡(luò)設(shè)備的開發(fā)、生產(chǎn)和銷售；電子產(chǎn)品的技術(shù)開發(fā)、生產(chǎn)與銷售；測試儀器、儀表及設(shè)備、自動化測試系統(tǒng)、測試治具、通訊設(shè)備器材、工業(yè)自動化控制系統(tǒng)、計算機(jī)軟硬件、計算機(jī)網(wǎng)絡(luò)設(shè)備的開發(fā)、生產(chǎn)和銷售。的企業(yè)之一，為客戶提供良好的藍(lán)牙測試設(shè)備，藍(lán)牙燒錄設(shè)備，藍(lán)牙RF測試，電流測試設(shè)備。小牛測控致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。小牛測控始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使小牛測控在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3203660.html</p></div></div></div></div></div><div id="eoqnfro" class="page-right twoColRt"><div id="zd7jl34" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8tqif30" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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