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class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059204335938/9819211.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ljyvceg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059204335938/9819211.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n2qnaco" 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>珠海便攜藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)</p><p><span>***更新：</span>2021-02-04 06:08:22</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="tc27782" 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="x23rt3g" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ajgxurt" class="box"><p><p style="text-indent:25px">藍(lán)牙PCBA測試板的組成模塊有：電源供電模塊，TFT LCD模塊，BLE連接測試模塊，按鍵模塊，晶振頻偏測試模塊，主控MCU。各個模塊的實(shí)現(xiàn)功能有：A)、電源供電模塊，該模塊主要負(fù)責(zé)給待測PCBA進(jìn)行供電B)，珠海便攜藍(lán)牙頻率校準(zhǔn)、TFT LCD模塊，該模塊主要負(fù)責(zé)對測試結(jié)果進(jìn)行顯示。C)、BLE連接測試模塊，該模塊主要對鎖相環(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)。D)、按鍵模塊，該模塊主要控制測試過程的開始。E)，珠海便攜藍(lán)牙頻率校準(zhǔn)、晶振頻偏測試模塊，珠海便攜藍(lán)牙頻率校準(zhǔn)，該模塊完成藍(lán)牙模組頻偏的測試與校準(zhǔn)。F)、主控MCU，該模塊為整個系統(tǒng)的中心，實(shí)現(xiàn)對整個系統(tǒng)各個模塊的控制。在藍(lán)牙技術(shù)構(gòu)成系統(tǒng)中，高層應(yīng)用是位于協(xié)議層上部的框架部分。珠海便攜藍(lán)牙頻率校準(zhǔn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海便攜藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059204335938/9819211.png"></div><p style="text-indent:25px">基于相同硬件實(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。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。珠海便攜藍(lán)牙頻率校準(zhǔn)藍(lán)牙頻率是基于數(shù)據(jù)包、有著主從架構(gòu)的協(xié)議。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海便攜藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059343349610/454652.png"></div><p style="text-indent:25px">藍(lán)牙傳輸距離較短：現(xiàn)階段，藍(lán)牙技術(shù)的主要工作范圍在10米左右，經(jīng)過增加射頻功率后的藍(lán)牙技術(shù)可以在100米的范圍進(jìn)行工作，只有這樣才能保證藍(lán)牙在傳播時的工作質(zhì)量與效率，提高藍(lán)牙的傳播速度。另外，在藍(lán)牙技術(shù)連接過程中還可以有效的降低該技術(shù)與其他電子產(chǎn)品之間的干擾，從而保證藍(lán)牙技術(shù)可以正常運(yùn)行。藍(lán)牙技術(shù)不*有較高對傳播質(zhì)量與效率，同時還具有較高的傳播性特點(diǎn)。通過調(diào)頻擴(kuò)頻技術(shù)進(jìn)行傳播：藍(lán)牙技術(shù)在實(shí)際應(yīng)用期間，可以原有的頻點(diǎn)進(jìn)行劃分、轉(zhuǎn)化，如果采用一些跳頻速度較快的藍(lán)牙技術(shù)。</p><p style="text-indent:25px">藍(lán)牙頻偏測試校準(zhǔn)裝置及方法，該裝置及方法不需要采用頻譜儀或藍(lán)牙信號綜合測試儀等高昂設(shè)備，直接使用藍(lán)牙PCBA測試板，即可完成整個頻偏校準(zhǔn)與測試；采用該測試方法，可大幅度提高測試效率，且測試成本低。該裝置及方法能夠快速實(shí)現(xiàn)藍(lán)牙設(shè)備的測試，測試速度塊、效率稿，節(jié)省測試時間和成本。將藍(lán)牙模組的頻偏定義為：實(shí)際通信載波頻率與理論通信載波頻率之間的差值。采用PWM信號檢測方式進(jìn)行頻偏校準(zhǔn)，測試過程中，不需要在**屏蔽房進(jìn)行測試，因此測試成本低，且方便生產(chǎn)，可以在生產(chǎn)中大范圍使用，提高了測試效率。頻偏校準(zhǔn)完成后，對校準(zhǔn)好的藍(lán)牙模組進(jìn)行RF測試，避免校準(zhǔn)錯誤，同時篩選出芯片鎖相環(huán)鎖定錯誤導(dǎo)致頻偏的產(chǎn)品。采用該方式，進(jìn)一步提高了系統(tǒng)的測試準(zhǔn)確性，從而發(fā)現(xiàn)更多潛在的風(fēng)險(xiǎn)。藍(lán)牙BT射頻阻塞特性是指在其它頻段存在大的干擾信號時，接收機(jī)接收有用信號的能力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海便攜藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059707656250/1092896.png"></div><p style="text-indent:25px">藍(lán)牙技術(shù)的兼容性較好，目前，藍(lán)牙技術(shù)已經(jīng)能夠發(fā)展成為**于操作系統(tǒng)的一項(xiàng)技術(shù)，實(shí)現(xiàn)了各種操作系統(tǒng)中良好的兼容性能。藍(lán)牙技術(shù)的工作頻段全球通用，適用于全球范圍內(nèi)用戶無界限的使用，解決了窩式移動電話的“國界”障礙。藍(lán)牙技術(shù)產(chǎn)品使用方便，利用藍(lán)牙設(shè)備可以搜索到另外一個藍(lán)牙技術(shù)產(chǎn)品，迅速建立起兩個設(shè)備之間的聯(lián)系，在控制軟件的作用下，可以自動傳輸數(shù)據(jù)。藍(lán)牙技術(shù)的性和抗干擾能力強(qiáng)，由于藍(lán)牙技術(shù)具有跳頻的功能，有效避免了ISM頻帶遇到干擾源。藍(lán)牙數(shù)字信號發(fā)生器和矢量信號分析塊的集成，它提供了模擬和實(shí)際測試間的相互交換。珠海多功能藍(lán)牙頻率校準(zhǔn)生產(chǎn)廠家</p><p style="text-indent:25px">藍(lán)牙頻率跳頻的通信接收機(jī)和發(fā)射機(jī)都是約定好一致的跳頻順序和跳頻時間。珠海便攜藍(lán)牙頻率校準(zhǔn)</p><p style="text-indent:25px">藍(lán)牙版本（1.0、1.2、2.0、3.0、4.0、5.0、5.1）代替不同的技術(shù)版本。截止到目前，藍(lán)牙版本：V1.1 / 1.2 / 2.0 / 2.1 / 3.0 / 4.0/5.0/5.1以通訊距離來在不同版本可再分為Class A與Class B，Class A由于成本高主要用于商業(yè)特殊用途，我們?nèi)粘＝佑|的大多是Class B。V1.1與1.2為早期的版本，傳輸速率*有748~810kb/s，由于是早期設(shè)計(jì)，通訊質(zhì)量并不算好，還易受到同頻率產(chǎn)品的干擾。直到藍(lán)牙2.0+EDR標(biāo)準(zhǔn)的推出，藍(lán)牙的實(shí)用性得到了大幅的提升，現(xiàn)在市場上能見到的產(chǎn)品也大多是2.0版本以后的，藍(lán)牙2.0+EDR的傳輸速率達(dá)到了2.1Mbps，相對于1.2提升了三倍。珠海便攜藍(lán)牙頻率校準(zhǔn)</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(jì)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(jì)算機(jī)硬件、計(jì)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(jì)算機(jī)軟硬件、計(jì)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(jì)、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(jì)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(jì)算機(jī)硬件、計(jì)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(jì)算機(jī)軟硬件、計(jì)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)。小牛測控創(chuàng)始人李利，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3154620.html</p></div></div></div></div></div><div id="ibtlnzw" class="page-right twoColRt"><div id="zo2axpm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jdfh3qh" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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