林業無線對講系統解決方案

行業背景 

 林(lin)業系(xi)統承(cheng)擔(dan)著保(bao)護國家森(sen)林(lin)資源(yuan)以及促進(jin)林(lin)業經濟健康(kang)發(fa)展的(de)(de)重(zhong)要責(ze)任。我國的(de)(de)林(lin)區(qu)具(ju)有集中性強和(he)單位(wei)面積廣(guang)袤的(de)(de)特(te)點(dian)，一(yi)旦發(fa)生(sheng)災(zai)害性事故，需要緊急時(shi)間排(pai)查危險源(yuan)并(bing)對危險區(qu)域進(jin)行(xing)定位(wei)。林(lin)業工作對于通信的(de)(de)需求日益(yi)突出。

林(lin)業通(tong)(tong)信(xin)(xin)系統(tong)(tong)建(jian)設以(yi)數字超(chao)短(duan)波(bo)技術、無線鏈(lian)(lian)路組網技術、視(shi)頻(pin)傳輸技術等形成(cheng)的通(tong)(tong)信(xin)(xin)網絡為基礎，著力構建(jian)空中與(yu)地面、有線與(yu)無線、固定與(yu)機動(dong)相結合(he)的鏈(lian)(lian)式、立體(ti)應急通(tong)(tong)信(xin)(xin)系統(tong)(tong)，全(quan)面提高(gao)森(sen)(sen)林(lin)防(fang)火(huo)(huo)通(tong)(tong)信(xin)(xin)的覆蓋率和傳遞率，確保在發生森(sen)(sen)林(lin)火(huo)(huo)災時(shi)，能夠使用多種通(tong)(tong)信(xin)(xin)手段保障(zhang)火(huo)(huo)災信(xin)(xin)息傳輸暢通(tong)(tong)，從而最|大限度(du)減少森(sen)(sen)林(lin)火(huo)(huo)災的損失程度(du)。

為解決林(lin)業(ye)(ye)工作日益增長的(de)通信需求，提升林(lin)業(ye)(ye)工作者的(de)工作效率，達到統一(yi)指揮的(de)目的(de)，海(hai)能(neng)達專門為林(lin)業(ye)(ye)用戶提供了一(yi)套滿足全省聯(lian)網、可靠性高、使用簡單、功(gong)能(neng)強大的(de)數(shu)字(zi)無線通訊系(xi)統——數(shu)字(zi)IP互聯(lian)系(xi)統和PDT數(shu)字(zi)同(tong)播(bo)系(xi)統。

解決方案

通(tong)(tong)(tong)(tong)(tong)過仔細研究分(fen)析(xi)林業用(yong)戶通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)需(xu)求(qiu)，提供了一套完善的(de)(de)(de)數字無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統(tong)解決方案。森林防(fang)火(huo)數字超短波(bo)無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)通(tong)(tong)(tong)(tong)(tong)過建(jian)設省(sheng)、市(shi)(shi)級(ji)調(diao)(diao)度(du)管(guan)理(li)控(kong)制(zhi)中(zhong)心(xin)，縣（區(qu)(qu)(qu)、市(shi)(shi)）二級(ji)調(diao)(diao)度(du)中(zhong)心(xin)，在(zai)重點(dian)森林防(fang)火(huo)地區(qu)(qu)(qu)（山區(qu)(qu)(qu)）建(jian)設固定(ding)(ding)基站(zhan)(zhan)，移動(dong)基站(zhan)(zhan)，軟(ruan)件管(guan)理(li)平臺構建(jian)綜合性的(de)(de)(de)無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統(tong)，形(xing)成全省(sheng)聯網(wang)的(de)(de)(de)省(sheng)、市(shi)(shi)、縣（區(qu)(qu)(qu)、市(shi)(shi)）三級(ji)森林防(fang)火(huo)指(zhi)揮調(diao)(diao)度(du)網(wang)絡(luo)框架(jia)，在(zai)系(xi)統(tong)覆蓋范圍內，能(neng)(neng)夠確保全省(sheng)的(de)(de)(de)通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)并(bing)且以縣（區(qu)(qu)(qu)、市(shi)(shi)）及林場(chang)為(wei)單位建(jian)立多個子網(wang)，各子網(wang)可(ke)(ke)以單獨通(tong)(tong)(tong)(tong)(tong)信(xin)(xin)且不占用(yong)其他(ta)子網(wang)的(de)(de)(de)信(xin)(xin)道資源。省(sheng)、市(shi)(shi)、縣（區(qu)(qu)(qu)、市(shi)(shi)）級(ji)調(diao)(diao)度(du)管(guan)理(li)控(kong)制(zhi)中(zhong)心(xin)對所轄范圍內各地森林防(fang)護(hu)人員終端進行遠程調(diao)(diao)度(du)管(guan)理(li)，包括呼(hu)叫(jiao)控(kong)制(zhi)功(gong)能(neng)(neng)（個呼(hu)、組呼(hu)、全呼(hu)、緊急報警等），數據(ju)應用(yong)管(guan)理(li)（短信(xin)(xin)息(xi)發(fa)送、GPS定(ding)(ding)位信(xin)(xin)息(xi)、考勤管(guan)理(li)等），同(tong)時，系(xi)統(tong)可(ke)(ke)通(tong)(tong)(tong)(tong)(tong)過IP網(wang)絡(luo)對各基站(zhan)(zhan)的(de)(de)(de)運行狀(zhuang)態進行檢查(cha)并(bing)且維護(hu)基站(zhan)(zhan)配置參數。

PDT同播系統

PDT同播系(xi)統(tong)(tong)是一種分區(qu)覆蓋(gai)的廣(guang)域通(tong)信(xin)(xin)系(xi)統(tong)(tong)，借助于多個基(ji)站(zhan)實現比單(dan)基(ji)站(zhan)系(xi)統(tong)(tong)更(geng)廣(guang)闊的通(tong)信(xin)(xin)覆蓋(gai)范圍(wei)(wei)，系(xi)統(tong)(tong)中各(ge)個基(ji)站(zhan)接收(shou)頻(pin)率及發射頻(pin)率一致，因此(ci)系(xi)統(tong)(tong)的頻(pin)譜利(li)用(yong)(yong)(yong)率高，移動(dong)用(yong)(yong)(yong)戶在(zai)跨基(ji)站(zhan)漫游時不(bu)用(yong)(yong)(yong)越區(qu)切換，不(bu)用(yong)(yong)(yong)進行位置登記，也(ye)不(bu)存(cun)在(zai)掉話現象。整個系(xi)統(tong)(tong)不(bu)像集群蜂(feng)窩小(xiao)區(qu)通(tong)信(xin)(xin)那(nei)樣(yang)需要(yao)復(fu)雜的信(xin)(xin)令系(xi)統(tong)(tong)，系(xi)統(tong)(tong)結構簡單(dan)，適用(yong)(yong)(yong)于林業用(yong)(yong)(yong)戶占用(yong)(yong)(yong)頻(pin)率資源少、覆蓋(gai)范圍(wei)(wei)大、通(tong)信(xin)(xin)業務量低(di)的應用(yong)(yong)(yong)。 

數字IP互聯系統

IP 互聯的基本原理(li)是通過基于TCP/IP協議的以太網將(jiang)分散的多個中(zhong)轉臺連接起來，從而實現(xian)更廣的通信(xin)覆蓋范圍(wei)。系統結構簡單，適用(yong)于林業用(yong)戶大范圍(wei)多基站組網應用(yong)。

特點：

?均(jun)能提供豐富(fu)的業務功能，如(ru)：單呼(hu)(hu)/組呼(hu)(hu)/全呼(hu)(hu)/模數(shu)兼容/緊急呼(hu)(hu)叫/緊急報警/遙(yao)(yao)暈/遙(yao)(yao)斃(bi)/終端檢查/環(huan)境監聽/故障弱化等；

 ?均(jun)采(cai)用(yong)全IP組網，支持多種傳輸鏈路（IP、E1、無(wu)線鏈路等）；

?終端可以無縫漫游，打火(huo)救援使用方便；

?調度多(duo)極化，支(zhi)持分(fen)層分(fen)級管理；

?完善的互聯(lian)互通功能，系統可以通過各種網關來(lai)與其他系統互聯(lian)；

?支持星型(xing)(xing)、串(chuan)型(xing)(xing)、樹型(xing)(xing)、環型(xing)(xing)等多種組網形態

?提供二次開(kai)發接口，便(bian)于(yu)用戶(hu)進行個性(xing)開(kai)發，擴展更多種類(lei)的數(shu)據應用業務；

?PDT同播系(xi)統(tong)全網只需(xu)一對頻點，解決林(lin)區多站建設頻點資源緊張的(de)問(wen)題(ti)(ti)，可有(you)效解決信(xin)號在重疊(die)覆蓋區的(de)同頻干擾問(wen)題(ti)(ti)，實(shi)現全省(sheng)林(lin)業系(xi)統(tong)通信(xin)覆蓋；

方案拓撲圖