林業無線對講系統解決方案

行業背景 

林(lin)業系統承(cheng)擔著保(bao)護國(guo)家森林(lin)資源以及促進林(lin)業經(jing)濟健康發展的(de)重(zhong)要責任(ren)。我國(guo)的(de)林(lin)區具(ju)有集中性強和單位面(mian)積廣袤的(de)特點，一旦(dan)發生災害性事故，需要緊(jin)急時間排查危險源并對危險區域進行(xing)定位。林(lin)業工作(zuo)對于(yu)通信的(de)需求日(ri)益突出(chu)。

林(lin)(lin)(lin)業通(tong)信(xin)(xin)(xin)系統(tong)建設以數字超(chao)短波技術、無線(xian)鏈路(lu)組網(wang)技術、視頻傳(chuan)輸技術等形(xing)成的(de)通(tong)信(xin)(xin)(xin)網(wang)絡為基礎，著力(li)構建空中與地面、有線(xian)與無線(xian)、固定(ding)與機動相結合的(de)鏈式、立體應急(ji)通(tong)信(xin)(xin)(xin)系統(tong)，全面提(ti)高森林(lin)(lin)(lin)防火通(tong)信(xin)(xin)(xin)的(de)覆(fu)蓋率和傳(chuan)遞率，確保(bao)在發生森林(lin)(lin)(lin)火災時，能(neng)夠使用多(duo)種通(tong)信(xin)(xin)(xin)手(shou)段保(bao)障(zhang)火災信(xin)(xin)(xin)息傳(chuan)輸暢通(tong)，從而(er)最|大限度減少森林(lin)(lin)(lin)火災的(de)損失程度。

為解決林(lin)(lin)業(ye)工作(zuo)日益增長的(de)通信需求，提升(sheng)林(lin)(lin)業(ye)工作(zuo)者(zhe)的(de)工作(zuo)效率，達到(dao)統(tong)一指揮的(de)目的(de)，海能達專門為林(lin)(lin)業(ye)用戶提供了(le)一套滿足全省聯網、可靠(kao)性(xing)高、使用簡單、功能強大的(de)數(shu)(shu)字(zi)無(wu)線通訊系統(tong)——數(shu)(shu)字(zi)IP互聯系統(tong)和PDT數(shu)(shu)字(zi)同播(bo)系統(tong)。

解決方案

通(tong)(tong)(tong)過(guo)仔細(xi)研究分析林業(ye)用戶(hu)通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)需求，提供了一套完善(shan)的(de)數(shu)字(zi)無線(xian)通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)系(xi)統解(jie)決方案。森(sen)(sen)林防(fang)(fang)火數(shu)字(zi)超短(duan)波無線(xian)通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)通(tong)(tong)(tong)過(guo)建(jian)設(she)省、市(shi)(shi)(shi)級(ji)調(diao)(diao)度(du)(du)管(guan)(guan)理控(kong)(kong)制(zhi)中(zhong)心，縣（區(qu)、市(shi)(shi)(shi)）二(er)級(ji)調(diao)(diao)度(du)(du)中(zhong)心，在重點森(sen)(sen)林防(fang)(fang)火地區(qu)（山區(qu)）建(jian)設(she)固定(ding)基站(zhan)，移動(dong)基站(zhan)，軟(ruan)件管(guan)(guan)理平臺(tai)構建(jian)綜合(he)性的(de)無線(xian)通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)系(xi)統，形成全省聯網(wang)(wang)的(de)省、市(shi)(shi)(shi)、縣（區(qu)、市(shi)(shi)(shi)）三級(ji)森(sen)(sen)林防(fang)(fang)火指揮調(diao)(diao)度(du)(du)網(wang)(wang)絡(luo)框架，在系(xi)統覆蓋范(fan)圍內，能(neng)夠(gou)確(que)保全省的(de)通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)并且(qie)以縣（區(qu)、市(shi)(shi)(shi)）及林場為單(dan)位建(jian)立多個(ge)子(zi)網(wang)(wang)，各子(zi)網(wang)(wang)可以單(dan)獨通(tong)(tong)(tong)信(xin)(xin)(xin)(xin)且(qie)不占用其他子(zi)網(wang)(wang)的(de)信(xin)(xin)(xin)(xin)道資(zi)源。省、市(shi)(shi)(shi)、縣（區(qu)、市(shi)(shi)(shi)）級(ji)調(diao)(diao)度(du)(du)管(guan)(guan)理控(kong)(kong)制(zhi)中(zhong)心對(dui)所轄(xia)范(fan)圍內各地森(sen)(sen)林防(fang)(fang)護人員終端進行遠程調(diao)(diao)度(du)(du)管(guan)(guan)理，包(bao)括(kuo)呼(hu)(hu)叫控(kong)(kong)制(zhi)功能(neng)（個(ge)呼(hu)(hu)、組呼(hu)(hu)、全呼(hu)(hu)、緊急報(bao)警等），數(shu)據應(ying)用管(guan)(guan)理（短(duan)信(xin)(xin)(xin)(xin)息(xi)發送、GPS定(ding)位信(xin)(xin)(xin)(xin)息(xi)、考(kao)勤(qin)管(guan)(guan)理等），同時，系(xi)統可通(tong)(tong)(tong)過(guo)IP網(wang)(wang)絡(luo)對(dui)各基站(zhan)的(de)運行狀(zhuang)態進行檢查并且(qie)維(wei)護基站(zhan)配置參(can)數(shu)。

PDT同播系統

PDT同播系(xi)(xi)統(tong)(tong)(tong)(tong)是一(yi)種分區覆蓋的(de)廣(guang)域通信(xin)(xin)系(xi)(xi)統(tong)(tong)(tong)(tong)，借(jie)助(zhu)于多(duo)個基(ji)站實現比(bi)單基(ji)站系(xi)(xi)統(tong)(tong)(tong)(tong)更廣(guang)闊(kuo)的(de)通信(xin)(xin)覆蓋范圍，系(xi)(xi)統(tong)(tong)(tong)(tong)中各(ge)個基(ji)站接(jie)收頻(pin)率及發射(she)頻(pin)率一(yi)致，因此系(xi)(xi)統(tong)(tong)(tong)(tong)的(de)頻(pin)譜(pu)利用(yong)(yong)率高，移動用(yong)(yong)戶在跨基(ji)站漫游(you)時不(bu)用(yong)(yong)越(yue)區切換，不(bu)用(yong)(yong)進行位置登記，也不(bu)存在掉話現象。整(zheng)個系(xi)(xi)統(tong)(tong)(tong)(tong)不(bu)像集群蜂窩小(xiao)區通信(xin)(xin)那樣需(xu)要復雜的(de)信(xin)(xin)令系(xi)(xi)統(tong)(tong)(tong)(tong)，系(xi)(xi)統(tong)(tong)(tong)(tong)結構簡單，適(shi)用(yong)(yong)于林(lin)業用(yong)(yong)戶占用(yong)(yong)頻(pin)率資源少(shao)、覆蓋范圍大(da)、通信(xin)(xin)業務量低的(de)應用(yong)(yong)。 

數字IP互聯系統

IP 互聯的(de)基本原理是通過基于TCP/IP協(xie)議的(de)以太網將分散的(de)多個中轉臺連接起來，從(cong)而實現更(geng)廣的(de)通信覆蓋范(fan)圍。系統結構簡單，適用(yong)(yong)(yong)于林(lin)業用(yong)(yong)(yong)戶大范(fan)圍多基站組網應用(yong)(yong)(yong)。

特點：

?均能(neng)提供豐富的業務功(gong)能(neng)，如：單呼(hu)(hu)(hu)/組(zu)呼(hu)(hu)(hu)/全呼(hu)(hu)(hu)/模數兼(jian)容/緊急呼(hu)(hu)(hu)叫/緊急報(bao)警/遙(yao)(yao)暈/遙(yao)(yao)斃/終端檢查/環境監(jian)聽/故(gu)障弱化等；

?均采用(yong)全(quan)IP組網，支持多種傳(chuan)輸鏈路（IP、E1、無線鏈路等）；

?終端可以無縫漫游，打火救(jiu)援使用方便；

?調(diao)度多極化，支持分層分級(ji)管理；

?完善(shan)的(de)互聯(lian)互通(tong)功(gong)能，系統(tong)可以通(tong)過各種(zhong)網關來與其他系統(tong)互聯(lian)；

?支持星型(xing)、串型(xing)、樹型(xing)、環型(xing)等多(duo)種組網形(xing)態(tai)

?提供(gong)二(er)次開發(fa)接(jie)口，便于用戶進行個性開發(fa)，擴展(zhan)更多種類的數(shu)據應用業務；

?PDT同播系統全(quan)網只需(xu)一對頻點，解決林區多站建(jian)設頻點資源緊張的(de)(de)問(wen)題，可有效解決信號在重疊覆蓋區的(de)(de)同頻干擾問(wen)題，實(shi)現全(quan)省林業系統通(tong)信覆蓋；

方案拓撲圖