林業無線對講系統解決方案

行業背景 

林業系統承擔著保護(hu)國家森(sen)林資(zi)源以及促進(jin)林業經濟健康發展(zhan)的(de)重要(yao)(yao)責任。我國的(de)林區(qu)具有集(ji)中性強和單(dan)位(wei)面積廣袤的(de)特點，一(yi)旦發生災(zai)害性事故，需要(yao)(yao)緊急時間排(pai)查危(wei)險源并對危(wei)險區(qu)域進(jin)行定位(wei)。林業工(gong)作對于通信的(de)需求日益突出。

林業通(tong)信(xin)系統建(jian)設以數字超短波(bo)技術、無(wu)線鏈路(lu)組網技術、視頻(pin)傳(chuan)輸(shu)技術等(deng)形成的(de)通(tong)信(xin)網絡為基(ji)礎，著力(li)構(gou)建(jian)空中與地面(mian)、有線與無(wu)線、固定與機動相結合的(de)鏈式、立(li)體應(ying)急通(tong)信(xin)系統，全面(mian)提高森(sen)林防火通(tong)信(xin)的(de)覆蓋率(lv)和傳(chuan)遞(di)率(lv)，確保在發生森(sen)林火災(zai)時，能夠使用多種通(tong)信(xin)手段保障火災(zai)信(xin)息傳(chuan)輸(shu)暢通(tong)，從而最|大限度(du)(du)減少森(sen)林火災(zai)的(de)損失程度(du)(du)。

為解決林業工作日益(yi)增長的通信需求，提升林業工作者(zhe)的工作效率(lv)，達到統(tong)(tong)一指揮的目的，海能達專門為林業用(yong)戶提供了一套(tao)滿足全(quan)省聯網、可(ke)靠性高(gao)、使用(yong)簡單、功能強(qiang)大的數字(zi)無線通訊系統(tong)(tong)——數字(zi)IP互(hu)聯系統(tong)(tong)和PDT數字(zi)同播系統(tong)(tong)。

解決方案

通(tong)過仔(zi)細研究(jiu)分析(xi)林業用(yong)戶通(tong)信需(xu)求，提供了一套(tao)完善的(de)數字無線(xian)通(tong)信系統(tong)解(jie)決方案。森林防火數字超短波(bo)無線(xian)通(tong)信通(tong)過建設(she)省、市(shi)(shi)級調度管(guan)(guan)理(li)控(kong)制(zhi)中(zhong)心(xin)，縣(xian)（區、市(shi)(shi)）二級調度中(zhong)心(xin)，在重點森林防火地區（山區）建設(she)固定基站(zhan)，移動基站(zhan)，軟件管(guan)(guan)理(li)平(ping)臺構建綜(zong)合性的(de)無線(xian)通(tong)信系統(tong)，形成全(quan)(quan)(quan)省聯網的(de)省、市(shi)(shi)、縣(xian)（區、市(shi)(shi)）三(san)級森林防火指揮調度網絡框架，在系統(tong)覆蓋范(fan)圍內，能(neng)夠確保全(quan)(quan)(quan)省的(de)通(tong)信并且(qie)以縣(xian)（區、市(shi)(shi)）及林場(chang)為單位建立多個子網，各子網可(ke)以單獨(du)通(tong)信且(qie)不占用(yong)其他子網的(de)信道資(zi)源。省、市(shi)(shi)、縣(xian)（區、市(shi)(shi)）級調度管(guan)(guan)理(li)控(kong)制(zhi)中(zhong)心(xin)對(dui)所轄范(fan)圍內各地森林防護人(ren)員終端(duan)進行遠程調度管(guan)(guan)理(li)，包括呼(hu)(hu)叫控(kong)制(zhi)功(gong)能(neng)（個呼(hu)(hu)、組呼(hu)(hu)、全(quan)(quan)(quan)呼(hu)(hu)、緊急(ji)報警等），數據應用(yong)管(guan)(guan)理(li)（短信息發(fa)送、GPS定位信息、考(kao)勤管(guan)(guan)理(li)等），同(tong)時，系統(tong)可(ke)通(tong)過IP網絡對(dui)各基站(zhan)的(de)運行狀態進行檢查并且(qie)維護基站(zhan)配置參數。

PDT同播系統

PDT同播系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)是一種分(fen)區覆蓋(gai)的(de)(de)廣域通(tong)(tong)(tong)信(xin)(xin)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)，借(jie)助于多個基站(zhan)實(shi)現比(bi)單(dan)(dan)基站(zhan)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)更廣闊的(de)(de)通(tong)(tong)(tong)信(xin)(xin)覆蓋(gai)范(fan)圍(wei)，系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)中各(ge)個基站(zhan)接收頻率(lv)及(ji)發射頻率(lv)一致，因此系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)的(de)(de)頻譜(pu)利(li)用(yong)(yong)(yong)(yong)率(lv)高(gao)，移動用(yong)(yong)(yong)(yong)戶在(zai)跨基站(zhan)漫(man)游時不(bu)(bu)用(yong)(yong)(yong)(yong)越區切換，不(bu)(bu)用(yong)(yong)(yong)(yong)進行位置(zhi)登記(ji)，也不(bu)(bu)存(cun)在(zai)掉話(hua)現象。整(zheng)個系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)不(bu)(bu)像集(ji)群蜂窩小(xiao)區通(tong)(tong)(tong)信(xin)(xin)那樣需要(yao)復(fu)雜的(de)(de)信(xin)(xin)令系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)，系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)結(jie)構簡(jian)單(dan)(dan)，適用(yong)(yong)(yong)(yong)于林業(ye)用(yong)(yong)(yong)(yong)戶占(zhan)用(yong)(yong)(yong)(yong)頻率(lv)資源少(shao)、覆蓋(gai)范(fan)圍(wei)大、通(tong)(tong)(tong)信(xin)(xin)業(ye)務量低的(de)(de)應用(yong)(yong)(yong)(yong)。 

數字IP互聯系統

IP 互(hu)聯(lian)的(de)基本原理是通(tong)過(guo)基于(yu)TCP/IP協議(yi)的(de)以太網將分散的(de)多個(ge)中轉(zhuan)臺連(lian)接起來，從而實現更廣的(de)通(tong)信(xin)覆(fu)蓋范圍。系統(tong)結構(gou)簡單，適用(yong)于(yu)林業(ye)用(yong)戶大范圍多基站組(zu)網應用(yong)。

特點：

?均能(neng)提供豐富的(de)業務功(gong)能(neng)，如：單(dan)呼/組呼/全呼/模數兼容/緊(jin)急呼叫/緊(jin)急報警(jing)/遙暈/遙斃(bi)/終端檢查/環境監(jian)聽/故障(zhang)弱化等；

?均采用全IP組網，支持多種傳輸鏈路(lu)（IP、E1、無線鏈路(lu)等）；

?終端(duan)可以(yi)無縫(feng)漫游，打(da)火(huo)救援使用方(fang)便；

?調度(du)多極(ji)化(hua)，支持分層分級管理；

?完善的互(hu)聯互(hu)通(tong)功能，系(xi)統可以通(tong)過各種網關來(lai)與(yu)其(qi)他系(xi)統互(hu)聯；

?支(zhi)持(chi)星型(xing)、串型(xing)、樹(shu)型(xing)、環型(xing)等多(duo)種(zhong)組網形態

?提供(gong)二(er)次(ci)開發接口，便于(yu)用(yong)戶進行(xing)個性開發，擴展更多種類的數據應用(yong)業務；

?PDT同播系統全網(wang)只需一對頻(pin)點(dian)，解(jie)決(jue)林(lin)區(qu)多站建設頻(pin)點(dian)資源緊張的(de)問(wen)題(ti)，可有效解(jie)決(jue)信號在(zai)重疊覆(fu)蓋(gai)區(qu)的(de)同頻(pin)干擾問(wen)題(ti)，實(shi)現(xian)全省林(lin)業系統通信覆(fu)蓋(gai)；

方案拓撲圖