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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>重慶常見433m通信模塊,433M無線通訊模塊</p><p><span>***更新：</span>2021-01-08 01:11:10</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="mpxykaw" 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="y7rdzfg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="f3d3hyu" class="box"><p><p style="text-indent:25px">哪些因素影響無線發(fā)射模塊的傳輸距離以及怎樣提升傳輸距離?1、廠商產(chǎn)品介紹的傳輸距離，是在環(huán)境較好的空曠地嘗試的較準(zhǔn)確的數(shù)據(jù)，客戶買回來使用的環(huán)境干擾比較多，比如樓房墻壁、樹木等。提升傳輸距離的方法：傳輸距離不夠長(zhǎng)的時(shí)候，可以挑選一些障礙物較少的地方使用，重慶常見433m通信模塊，以此達(dá)到增加距離的目的，重慶常見433m通信模塊。2、電源在使用一段時(shí)間后，電壓會(huì)減少，重慶常見433m通信模塊，導(dǎo)致傳輸距離減少。要想提升傳輸距離，可以更換一個(gè)電容量大電壓穩(wěn)定的電源。3、一些人為了減少傳輸時(shí)間，把433無線模塊的速率提升，導(dǎo)致傳輸距離減少。所以使用的時(shí)候可以把傳輸速率調(diào)低一些，這樣可以增加無線模塊傳輸距離。4、天線是影響模塊傳輸距離的因素之一，高增益天線可以讓距離傳輸更遠(yuǎn)，另外提升天線的架設(shè)高度，盡量保持天線離地面2米以上，這樣可以達(dá)到較好的傳輸距離。當(dāng)電壓大于12V時(shí)功耗增大，有效發(fā)射功率不再明顯提高。重慶常見433m通信模塊</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶常見433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503190322266/6461766.png"></div><p style="text-indent:25px">無線發(fā)射與接收模塊的優(yōu)勢(shì)：1.安裝維護(hù)方便、繞射能力強(qiáng)、組網(wǎng)結(jié)構(gòu)靈活、大范圍覆蓋。無線接收發(fā)射模塊適合于點(diǎn)多而分散、地理環(huán)境復(fù)雜等應(yīng)用場(chǎng)合，可普遍應(yīng)用于水文、油田、電力、交通、氣象、環(huán)保、保安、銀行、稅務(wù)、報(bào)警、GPS定位信息回傳、GIS等領(lǐng)域的監(jiān)控、采集數(shù)據(jù)的實(shí)時(shí)傳送，滿足客戶對(duì)于數(shù)據(jù)實(shí)時(shí)性、準(zhǔn)確性的要求，降低人員勞動(dòng)強(qiáng)度和企業(yè)運(yùn)營(yíng)成本。2.簡(jiǎn)單易用的硬件接口功能。無線接收發(fā)射模塊可以將模塊用2.54mm腳距的排針焊在主板上,可方便的與232接口實(shí)現(xiàn)串口數(shù)據(jù)傳輸。同時(shí)也提供了簡(jiǎn)單易懂的傻瓜軟件包下載及技術(shù)支持，客戶不需要再為復(fù)雜的寄存器配制而浪費(fèi)時(shí)間和精力,這樣可以縮短2.4G產(chǎn)品的應(yīng)用研發(fā)周期，降低開發(fā)難度，節(jié)約研發(fā)成本。3.性價(jià)比高。無線接收發(fā)射模塊可以在很多地方運(yùn)用，其發(fā)射模塊與接收模塊均只有大拇指大小，為業(yè)界微型的模塊之一。福州求購(gòu)單片機(jī)無線通訊模塊無線收發(fā)模塊整合了高頻鍵控收發(fā)電路的功能，以特小體積更低成本實(shí)現(xiàn)高速數(shù)據(jù)傳輸?shù)墓δ堋?/p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶常見433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png"></div><p style="text-indent:25px">由于433M無線模塊的接收靈敏度高，繞射性能好，我們一般使用433MHz無線模塊來實(shí)現(xiàn)主從模式的通信系統(tǒng)當(dāng)中。這樣主從拓?fù)浣Y(jié)構(gòu)其實(shí)就是一個(gè)智能家居，它具有網(wǎng)絡(luò)結(jié)構(gòu)簡(jiǎn)單，布局容易，上電時(shí)間短的優(yōu)勢(shì)。433M無線模塊的工作頻率為315M，采用聲表諧振器SAW穩(wěn)頻，頻率穩(wěn)定度極高，當(dāng)環(huán)境溫度在-25～+85度之間變化時(shí)，頻飄*為3ppm/度。?發(fā)射技術(shù)指標(biāo)?1、通訊方式：調(diào)幅AM 2、工作頻率：315MHz/433MHz 3、頻率穩(wěn)定度：±75kHz 4、發(fā)射功率：≤500mW 5、靜態(tài)電流：≤0.1μA?6、發(fā)射電流：3～50mA?7、工作電壓：DC?3～12V。433M無線模塊特別適合多發(fā)一收無線遙控及數(shù)據(jù)傳輸系統(tǒng)。聲表諧振器的頻率穩(wěn)定度*次于晶體，而一般的LC振蕩器頻率穩(wěn)定度及一致性較差，即使采用***微調(diào)電容，溫差變化及振動(dòng)也很難保證已調(diào)好的頻點(diǎn)不會(huì)發(fā)生偏移。</p><p style="text-indent:25px">接收模塊的工作電壓為5伏，靜態(tài)電流4毫安，它為超再生接收電路，接收靈敏度為－105dbm，接收天線較好為25～30厘米的導(dǎo)線，建議能豎立起來。接收模塊本身不帶解碼集成電路，因此接收電路*是一種組件，只有應(yīng)用在具體電路中進(jìn)行二次開發(fā)才能發(fā)揮應(yīng)有的作用，這種設(shè)計(jì)有很多優(yōu)點(diǎn)，它可以和各種解碼電路或者單片機(jī)配合，設(shè)計(jì)電路靈活方便。電路優(yōu)點(diǎn)：1、天線輸入端有選頻電路，而不依賴1/4波長(zhǎng)天線的選頻作用，控制距離較近時(shí)可以剪短甚至去掉外接天線。2、輸出端的波形在沒有信號(hào)比較干凈，干擾信號(hào)為短暫的針狀脈沖，而不象其它超再生接收電路會(huì)產(chǎn)生密集的噪聲波形，所以抗干擾能力較強(qiáng)。無線電信號(hào)傳輸時(shí)會(huì)受很多因素的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶常見433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503213310547/6692886.png"></div><p style="text-indent:25px">433m無線模塊的數(shù)據(jù)模塊采用ASK方式調(diào)制，以降低功耗，當(dāng)數(shù)據(jù)信號(hào)停止時(shí)發(fā)射電流降為零，數(shù)據(jù)信號(hào)與發(fā)射模塊輸入端可以用電阻或者直接連接而不能用電容耦合，否則發(fā)射模塊將不能正常工作。數(shù)據(jù)電平應(yīng)接近數(shù)據(jù)模塊的實(shí)際工作電壓，以獲得較高的調(diào)制效果。發(fā)射發(fā)射模塊較好能垂直安裝在主板的邊緣，應(yīng)離開周圍器件5mm以上，以免受分布參數(shù)影晌。模塊的傳輸距離與調(diào)制信號(hào)頻率及幅度，發(fā)射電壓及電池容量，發(fā)射天線，接收機(jī)的靈敏度，收發(fā)環(huán)境有關(guān)。一般在開闊區(qū)較大發(fā)射距離約800米，在有障礙的情況下，距離會(huì)縮短，由于無線電信號(hào)傳輸過程中的折射和反射會(huì)形成一些死區(qū)及不穩(wěn)定區(qū)域，不同的收發(fā)環(huán)境會(huì)有不同的收發(fā)距離。433M無線模塊的接收靈敏度高，繞射性能好。嘉興433M無線通訊模塊預(yù)定</p><p style="text-indent:25px">433m無線模塊的模塊自身輻射極小。重慶常見433m通信模塊</p><p style="text-indent:25px">433MHz在智慧家居的應(yīng)用：無線射頻燈光控制系統(tǒng)由智能面板開關(guān)和調(diào)光器組成，調(diào)光器用以發(fā)送和接收命令信號(hào)，命令通過無線電傳播，而不是通過家庭的電源線路傳輸。每個(gè)面板開關(guān)都備有一個(gè)不同的遙控識(shí)別代碼。這些代碼利用19位識(shí)別技術(shù)，使一些設(shè)備能準(zhǔn)確辨別每個(gè)指令。即使鄰居同時(shí)使用，也不會(huì)因其遙控器干擾而發(fā)生傳輸錯(cuò)誤。無線智能插座系列主要通過無線射頻技術(shù)實(shí)現(xiàn)對(duì)非遙控電器(如熱水器、電風(fēng)扇等)的電源遙控，不*為這些電器增加了無線遙控的功能，而且還較大限度地節(jié)約能源，保障安全。重慶常見433m通信模塊</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2747027.html</p></div></div></div></div></div><div id="gea23fq" class="page-right twoColRt"><div id="muldpam" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="piepgxt" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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