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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>貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好,代理SIMcom無(wú)線通訊模塊</p><p><span>***更新：</span>2020-12-15 03:15:35</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="vurgirn" 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="8czovkb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="fj72fx7" class="box"><p><p style="text-indent:25px">SIMcom無(wú)線通訊模塊應(yīng)用在哪些方面？1、無(wú)線煙感探測(cè)器。在安全領(lǐng)域，隨著平安城市的建設(shè)不斷推進(jìn)，越來(lái)越多的監(jiān)測(cè)點(diǎn)受到監(jiān)控。對(duì)各類早期火災(zāi)發(fā)出的煙霧及時(shí)作出報(bào)警。智能探測(cè)技術(shù)準(zhǔn)確，穩(wěn)定，靈敏性能高，保障人身及財(cái)產(chǎn)安全。在無(wú)線煙感探測(cè)器中，少不了SIMcomMHz無(wú)線模塊。2.，貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好、智能開關(guān)控制器。智能開關(guān)控制器除了保留傳統(tǒng)的手動(dòng)控制功能以外，還需要遠(yuǎn)程控制、電量計(jì)量、數(shù)據(jù)上傳等功能，滿足智能開關(guān)在大型公共建筑物智能用電系統(tǒng)中的功能需要。SIMcom無(wú)線通訊模塊的應(yīng)用很廣，如電子玩具、安防監(jiān)控、工業(yè)控制、無(wú)人機(jī)飛行器、無(wú)線數(shù)據(jù)采集，貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好、表計(jì)產(chǎn)品，貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好、報(bào)警器、REID（電子價(jià)格標(biāo)簽）等行業(yè)或產(chǎn)品或領(lǐng)域，都用到SIMcomm無(wú)線模塊，其普遍性和重要性在某些領(lǐng)域甚至是不可替代的。隨著智能電子產(chǎn)品深入到生活，代理 SIMcom無(wú)線通訊模塊塊的需求量也大增。貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好,代理SIMcom無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637361258174287110/7269433.png"></div><p style="text-indent:25px">無(wú)線通訊模塊中單片機(jī)對(duì)接收模塊的干擾：?jiǎn)纹瑱C(jī)模擬2262時(shí)一般都很正常，然而單片機(jī)模擬2272解碼時(shí)通常會(huì)發(fā)現(xiàn)遙控距離縮短很多，這是因?yàn)閱纹瑱C(jī)的時(shí)鐘頻率的倍頻都會(huì)對(duì)接收模塊產(chǎn)生干擾，51系列的單片機(jī)電磁干擾比較大，2051稍微小一些，PIC系列的比較小，我們需要采用一些抗干擾措施來(lái)減小干擾。比如單片機(jī)和遙控接收電路分別用兩個(gè)5伏電源供電，將接收板單獨(dú)用一個(gè)78L05供電，單片機(jī)的時(shí)鐘區(qū)遠(yuǎn)離接收模塊，降低單片機(jī)的工作頻率，中間加入屏蔽等。接收模塊和51系列單片機(jī)接口時(shí)可以做一個(gè)隔離電路，能較好地遏制單片機(jī)對(duì)接收模塊的電磁干擾。接收模塊工作時(shí)一般輸出的是高電平脈沖，不是直流電平，所以不能用萬(wàn)用表測(cè)試，調(diào)試時(shí)可用一個(gè)發(fā)光二極管串接一個(gè)3K的電阻來(lái)監(jiān)測(cè)模塊的輸出狀態(tài)。上海手機(jī)通信模塊去哪買無(wú)線數(shù)傳模塊建立**無(wú)線數(shù)據(jù)傳輸方式，節(jié)省了人力物力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好,代理SIMcom無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637361260791435547/9361366.png"></div><p style="text-indent:25px">增加SIMcom無(wú)線通訊模塊距離的方法有哪些?SIMcom無(wú)線通訊模塊市場(chǎng)需求量還是比較大的，一般常用于安防系統(tǒng)，門禁系統(tǒng)等領(lǐng)域。很多客戶在購(gòu)買了SIMcomMHz無(wú)線模塊之后，在使用時(shí)有可能會(huì)因?yàn)榄h(huán)境、天氣等因素的影響，而導(dǎo)致無(wú)線模塊的傳輸距離并不是很理想。那么，增加SIMcomMHz無(wú)線模塊傳輸距離的方法有哪些呢?SIMcom無(wú)線通訊模塊的傳輸距離和調(diào)制信號(hào)頻率以及幅度，天線、接收靈敏度、無(wú)線電壓和電池容量，收發(fā)環(huán)境等因素有關(guān)。一般可以通過以下四個(gè)方法來(lái)增加無(wú)線模塊的傳輸距離：一、可以使用高增益的天線;二、調(diào)整好合適的發(fā)射頻率;三、可以通過加大無(wú)線模塊的發(fā)射功率來(lái)增加距離;四、可以提高無(wú)線模塊的接收靈敏度。</p><p style="text-indent:25px">無(wú)線通信模塊是利用無(wú)線技術(shù)進(jìn)行傳輸?shù)囊环N模塊，被普遍應(yīng)用于車輛監(jiān)控、遙控、遙測(cè)、小型無(wú)線網(wǎng)絡(luò)、無(wú)線抄表、門禁系統(tǒng)、小區(qū)傳呼、工業(yè)數(shù)據(jù)采集系統(tǒng)、無(wú)線標(biāo)簽、身份識(shí)別、非接觸RF智能卡、小型無(wú)線數(shù)據(jù)終端、安全防火系統(tǒng)、無(wú)線遙控系統(tǒng)、生物信號(hào)采集、水文氣象監(jiān)控、機(jī)器人控制、無(wú)線232數(shù)據(jù)通信、無(wú)線485/422數(shù)據(jù)通信、數(shù)字音頻、數(shù)字圖像傳輸?shù)阮I(lǐng)域中。模塊主要由發(fā)射器和控制器組成。無(wú)線通信模塊注意事項(xiàng)：1、合理的通訊速率。數(shù)據(jù)模塊的較大傳輸數(shù)據(jù)速率為9.6KBs，一般控制在2.5k左右，過高的數(shù)據(jù)速率會(huì)降低接收靈敏度及增大誤碼率甚至根本無(wú)法工作。2、合理的信息碼格式。單片機(jī)和模塊工作時(shí)，通常自己定義傳輸協(xié)議，不論用何種調(diào)制方式，所要傳遞的信息碼格式都很重要，它將直接影響到數(shù)據(jù)的可靠收發(fā)。無(wú)線模塊可使用通用的彈簧天線、彎頭/直頭棒狀天線、吸盤天線等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好,代理SIMcom無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637361259658681641/8175187.png"></div><p style="text-indent:25px">無(wú)線通信模塊的優(yōu)點(diǎn)：有線通信方式的建立必須架設(shè)電纜，或挖掘電纜溝，因此需要大量的人力和物力；而用無(wú)線數(shù)傳電臺(tái)建立**無(wú)線數(shù)據(jù)傳輸方式則無(wú)需架設(shè)電纜或挖掘電纜溝，只需要在每個(gè)終端連接無(wú)線數(shù)傳電臺(tái)和架設(shè)適當(dāng)高度的天線就可以了。相比之下用無(wú)線數(shù)傳模塊建立**無(wú)線數(shù)據(jù)傳輸方式，節(jié)省了人力物力，投資是相當(dāng)節(jié)省的。當(dāng)然在一些近距離的數(shù)據(jù)通訊系統(tǒng)中，無(wú)線的通訊方式并不比有線的方式成本低，但是有時(shí)候?qū)嶋H的現(xiàn)場(chǎng)環(huán)境難以布線，客戶根據(jù)現(xiàn)場(chǎng)環(huán)境的需要還是會(huì)選用無(wú)線的方式來(lái)實(shí)現(xiàn)通訊。代理 SIMcom無(wú)線通訊模塊塊采集功能：采集各類儀表輸出的脈沖量、模擬量或串口信號(hào)。上海手機(jī)通信模塊去哪買</p><p style="text-indent:25px">無(wú)線通信模塊節(jié)點(diǎn)間距離可以達(dá)到幾百米以上。貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好</p><p style="text-indent:25px">單片機(jī)模擬2262時(shí)一般都很正常，然而單片機(jī)模擬2272解碼時(shí)通常會(huì)發(fā)現(xiàn)遙控距離縮短很多，這是因?yàn)閱纹瑱C(jī)的時(shí)鐘頻率的倍頻都會(huì)對(duì)接收模塊產(chǎn)生干擾，51系列的單片機(jī)電磁干擾比較大，2051稍微小一些，PIC系列的比較小，我們需要采用一些抗干擾措施來(lái)減小干擾。比如單片機(jī)和遙控接收電路分別用兩個(gè)5伏電源供電，將接收板單獨(dú)用一個(gè)78L05供電，單片機(jī)的時(shí)鐘區(qū)遠(yuǎn)離接收模塊，降低單片機(jī)的工作頻率，中間加入屏蔽等。接收模塊和51系列單片機(jī)接口時(shí)可以做一個(gè)隔離電路，能較好地遏制單片機(jī)對(duì)接收模塊的電磁干擾。接收模塊工作時(shí)一般輸出的是高電平脈沖，不是直流電平，所以不能用萬(wàn)用表測(cè)試，調(diào)試時(shí)可用一個(gè)發(fā)光二極管串接一個(gè)3K的電阻來(lái)監(jiān)測(cè)模塊的輸出狀態(tài)。無(wú)線數(shù)據(jù)模塊和PT2262/PT2272等**編解碼芯片使用時(shí)，連接很簡(jiǎn)單只要直接連接即可，傳輸距離比較理想，一般能達(dá)到600米以上，如果和單片機(jī)或者微機(jī)配合使用時(shí)，會(huì)受到單片機(jī)或者微機(jī)的時(shí)鐘干擾，造成傳輸距離明顯下降，一般實(shí)用距離在200米以內(nèi)。貴陽(yáng)SIMcom無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2408004.html</p></div></div></div></div></div><div id="ywda7b4" class="page-right twoColRt"><div id="t297ac8" class="box01 margin10 clearfix"><h3><a 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