芒果视频

通信設備行業簡介

一、通信設備包括哪些

通信設備是用于工控環境的有線通訊設備和無線通訊設備，大致可分為有線通訊設備和無線通訊設備兩種。有線通訊設備主要解決工業現場的串口通訊，專業總線型的通訊，工業以太網的通訊以及各種通訊協議之間的轉換設備，包括電腦、 電視、電話、PCM、光端機、服務器、路由器、交換機、modem等設備；無線通訊設備是利用電磁波信號在自由空間中傳播進行信息交換的設備，有無線AP、無線網橋、無線網卡、無線避雷器、天線、衛星、無線電臺、無線電視（公交車或地鐵上）、無線局域網、移動電話（手機）、手機GPRS上網等設備。如果您需要購買通信設備，可以先來了解一下通信設備十大品牌。

二、通信設備的作用是什么

通(tong)(tong)(tong)(tong)(tong)信(xin)設(she)(she)備分為有(you)線(xian)通(tong)(tong)(tong)(tong)(tong)信(xin)設(she)(she)備和無線(xian)通(tong)(tong)(tong)(tong)(tong)信(xin)設(she)(she)備，有(you)多(duo)種類(lei)型(xing)(xing)，不(bu)同種類(lei)的(de)通(tong)(tong)(tong)(tong)(tong)信(xin)設(she)(she)備作用(yong)會略有(you)不(bu)同，一般總的(de)來說，其作用(yong)是解決(jue)工業現(xian)(xian)場的(de)串口通(tong)(tong)(tong)(tong)(tong)訊(xun)、實現(xian)(xian)專(zhuan)業總線(xian)型(xing)(xing)的(de)通(tong)(tong)(tong)(tong)(tong)訊(xun)、工業以(yi)太(tai)網(wang)的(de)通(tong)(tong)(tong)(tong)(tong)訊(xun)以(yi)及各種通(tong)(tong)(tong)(tong)(tong)訊(xun)協議之間的(de)轉(zhuan)換(huan)、傳(chuan)輸數據等。

三、通信設備故障檢測方法有哪些

1、直接(jie)觀察法(fa)(fa)(fa)：直接(jie)觀察有(you)(you)不(bu)(bu)接(jie)電(dian)(dian)(dian)(dian)和(he)(he)接(jie)電(dian)(dian)(dian)(dian)兩(liang)種情況，首先應(ying)該進行不(bu)(bu)接(jie)電(dian)(dian)(dian)(dian)觀察，利用(yong)人的(de)(de)感覺器(qi)官(guan)檢(jian)(jian)查(cha)，確(que)認機內外各元(yuan)(yuan)器(qi)件(jian)(jian)(jian)(jian)(jian)無(wu)(wu)誤(wu)后，接(jie)電(dian)(dian)(dian)(dian)觀察，看機內有(you)(you)無(wu)(wu)冒(mao)煙(yan)、打火、異常(chang)聲(sheng)響現象，如有(you)(you)趕緊關(guan)機，還可輕輕敲擊機箱、構(gou)件(jian)(jian)(jian)(jian)(jian)，看有(you)(you)無(wu)(wu)接(jie)觸不(bu)(bu)良(liang)，同時可用(yong)手觸摸懷疑(yi)的(de)(de)元(yuan)(yuan)器(qi)件(jian)(jian)(jian)(jian)(jian)，看是否有(you)(you)過熱現象并根據元(yuan)(yuan)器(qi)件(jian)(jian)(jian)(jian)(jian)過熱程(cheng)度以(yi)及(ji)(ji)溫(wen)度做出相(xiang)應(ying)的(de)(de)判斷。2、測(ce)(ce)(ce)量法(fa)(fa)(fa)：常(chang)見的(de)(de)測(ce)(ce)(ce)量檢(jian)(jian)查(cha)方(fang)法(fa)(fa)(fa)有(you)(you)電(dian)(dian)(dian)(dian)壓檢(jian)(jian)查(cha)法(fa)(fa)(fa)、電(dian)(dian)(dian)(dian)阻檢(jian)(jian)查(cha)法(fa)(fa)(fa)和(he)(he)電(dian)(dian)(dian)(dian)流(liu)檢(jian)(jian)查(cha)法(fa)(fa)(fa)。電(dian)(dian)(dian)(dian)壓檢(jian)(jian)查(cha)法(fa)(fa)(fa)是通(tong)過測(ce)(ce)(ce)量元(yuan)(yuan)器(qi)件(jian)(jian)(jian)(jian)(jian)工(gong)作(zuo)電(dian)(dian)(dian)(dian)壓并與(yu)正常(chang)值進行比(bi)較(jiao)(jiao)來判斷故(gu)障(zhang)；電(dian)(dian)(dian)(dian)阻檢(jian)(jian)查(cha)法(fa)(fa)(fa)是測(ce)(ce)(ce)量元(yuan)(yuan)器(qi)件(jian)(jian)(jian)(jian)(jian)對地(di)或(huo)自(zi)身電(dian)(dian)(dian)(dian)阻值來判斷故(gu)障(zhang)的(de)(de)一種方(fang)法(fa)(fa)(fa)，它(ta)(ta)對檢(jian)(jian)修開路(lu)、短路(lu)故(gu)障(zhang)和(he)(he)確(que)定故(gu)障(zhang)元(yuan)(yuan)件(jian)(jian)(jian)(jian)(jian)有(you)(you)實效；電(dian)(dian)(dian)(dian)流(liu)檢(jian)(jian)查(cha)法(fa)(fa)(fa)是將(jiang)電(dian)(dian)(dian)(dian)流(liu)表串(chuan)入電(dian)(dian)(dian)(dian)路(lu)中(zhong)測(ce)(ce)(ce)量工(gong)作(zuo)電(dian)(dian)(dian)(dian)流(liu)。3、插拔(ba)法(fa)(fa)(fa)：通(tong)過將(jiang)插件(jian)(jian)(jian)(jian)(jian)“插入”或(huo)“拔(ba)出”來尋找(zhao)故(gu)障(zhang)。4、試探(tan)(tan)法(fa)(fa)(fa)：用(yong)正常(chang)的(de)(de)插件(jian)(jian)(jian)(jian)(jian)板或(huo)好的(de)(de)組件(jian)(jian)(jian)(jian)(jian)（大規(gui)模(mo)的(de)(de)集(ji)成電(dian)(dian)(dian)(dian)路(lu)）替換有(you)(you)故(gu)障(zhang)疑(yi)點的(de)(de)插件(jian)(jian)(jian)(jian)(jian)板或(huo)組件(jian)(jian)(jian)(jian)(jian)來試探(tan)(tan)故(gu)障(zhang)。5、其它(ta)(ta)檢(jian)(jian)修方(fang)法(fa)(fa)(fa)：包(bao)括(kuo)隔離(li)法(fa)(fa)(fa)、比(bi)較(jiao)(jiao)法(fa)(fa)(fa)、升溫(wen)法(fa)(fa)(fa)等。6、綜合法(fa)(fa)(fa)：把以(yi)上方(fang)法(fa)(fa)(fa)統一考慮起來處理故(gu)障(zhang)，處理一些比(bi)較(jiao)(jiao)復雜的(de)(de)故(gu)障(zhang)，能及(ji)(ji)時、準確(que)地(di)找(zhao)出故(gu)障(zhang)原因(yin)并且排(pai)除它(ta)(ta)。

四、通信設備折舊年限是多少

通(tong)信設備(bei)有(you)(you)一定(ding)(ding)的(de)(de)折舊年(nian)限，根據規定(ding)(ding)，通(tong)信設備(bei)折舊年(nian)限一般(ban)在5-10年(nian)，運營商會(hui)采取更激進的(de)(de)折舊方(fang)式，所(suo)以，可能會(hui)更接近于５年(nian)。不過需要注意的(de)(de)是(shi)，通(tong)信設備(bei)有(you)(you)很(hen)多(duo)不同的(de)(de)設備(bei)，設備(bei)類型不同，折舊年(nian)限也(ye)是(shi)有(you)(you)一定(ding)(ding)區別的(de)(de)。