林業無線對講系統解決方案

行業背景 

林業(ye)系統(tong)承(cheng)擔著(zhu)保護國家森林資源以(yi)及促(cu)進林業(ye)經濟健康發展的重(zhong)要(yao)責任。我國的林區具有集中(zhong)性(xing)強(qiang)和單位面積(ji)廣袤的特點，一旦(dan)發生災害性(xing)事故，需要(yao)緊急時(shi)間排查危險(xian)源并對危險(xian)區域進行定位。林業(ye)工作(zuo)對于通信的需求日益突出。

林業通(tong)信(xin)系(xi)(xi)統(tong)建設以數字超短(duan)波技術、無(wu)(wu)線(xian)鏈路(lu)組(zu)網技術、視頻傳輸(shu)技術等(deng)形成的通(tong)信(xin)網絡(luo)為基礎，著力構建空中與地(di)面(mian)、有線(xian)與無(wu)(wu)線(xian)、固定與機動(dong)相結(jie)合的鏈式、立體應(ying)急(ji)通(tong)信(xin)系(xi)(xi)統(tong)，全面(mian)提高森(sen)林防火(huo)通(tong)信(xin)的覆蓋率和(he)傳遞率，確保(bao)在發生森(sen)林火(huo)災(zai)(zai)時(shi)，能(neng)夠使用多種通(tong)信(xin)手段保(bao)障火(huo)災(zai)(zai)信(xin)息傳輸(shu)暢通(tong)，從而最|大限(xian)度減少森(sen)林火(huo)災(zai)(zai)的損失程(cheng)度。

為(wei)解決林業(ye)工(gong)作日益增長(chang)的(de)通(tong)信需求，提(ti)升林業(ye)工(gong)作者的(de)工(gong)作效率，達到統一(yi)指揮的(de)目的(de)，海(hai)能達專門(men)為(wei)林業(ye)用(yong)戶提(ti)供了一(yi)套(tao)滿(man)足全省聯網、可靠性高、使(shi)用(yong)簡(jian)單、功能強大的(de)數字無線通(tong)訊系統——數字IP互聯系統和(he)PDT數字同播系統。

解決方案

通(tong)(tong)(tong)(tong)過仔(zi)細研究(jiu)分析林(lin)業(ye)用(yong)戶通(tong)(tong)(tong)(tong)信需求(qiu)，提供了一(yi)套完善的(de)數(shu)字(zi)無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)信系(xi)(xi)統解決方案。森林(lin)防(fang)火(huo)數(shu)字(zi)超(chao)短波無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)信通(tong)(tong)(tong)(tong)過建設省(sheng)、市級(ji)調(diao)(diao)度管(guan)理控(kong)制(zhi)中心(xin)，縣(xian)(xian)（區(qu)、市）二級(ji)調(diao)(diao)度中心(xin)，在重點森林(lin)防(fang)火(huo)地(di)(di)區(qu)（山(shan)區(qu)）建設固定(ding)基站(zhan)，移動基站(zhan)，軟件管(guan)理平臺(tai)構建綜合(he)性(xing)的(de)無(wu)(wu)線(xian)通(tong)(tong)(tong)(tong)信系(xi)(xi)統，形成全省(sheng)聯網的(de)省(sheng)、市、縣(xian)(xian)（區(qu)、市）三級(ji)森林(lin)防(fang)火(huo)指揮調(diao)(diao)度網絡框(kuang)架，在系(xi)(xi)統覆蓋范(fan)圍內，能夠確保全省(sheng)的(de)通(tong)(tong)(tong)(tong)信并且(qie)以(yi)縣(xian)(xian)（區(qu)、市）及林(lin)場為單(dan)位建立多個子(zi)網，各(ge)子(zi)網可以(yi)單(dan)獨通(tong)(tong)(tong)(tong)信且(qie)不占(zhan)用(yong)其他子(zi)網的(de)信道資源。省(sheng)、市、縣(xian)(xian)（區(qu)、市）級(ji)調(diao)(diao)度管(guan)理控(kong)制(zhi)中心(xin)對所轄范(fan)圍內各(ge)地(di)(di)森林(lin)防(fang)護人員終端進(jin)行(xing)(xing)遠程調(diao)(diao)度管(guan)理，包(bao)括(kuo)呼叫控(kong)制(zhi)功能（個呼、組(zu)呼、全呼、緊(jin)急報警等），數(shu)據應用(yong)管(guan)理（短信息發送、GPS定(ding)位信息、考勤管(guan)理等），同時，系(xi)(xi)統可通(tong)(tong)(tong)(tong)過IP網絡對各(ge)基站(zhan)的(de)運行(xing)(xing)狀態進(jin)行(xing)(xing)檢(jian)查并且(qie)維護基站(zhan)配置參數(shu)。

PDT同播系統

PDT同播系(xi)(xi)統(tong)(tong)是一種分區(qu)(qu)覆蓋(gai)的廣域(yu)通(tong)(tong)(tong)信(xin)系(xi)(xi)統(tong)(tong)，借助于多個(ge)基(ji)站(zhan)實現比單(dan)基(ji)站(zhan)系(xi)(xi)統(tong)(tong)更廣闊(kuo)的通(tong)(tong)(tong)信(xin)覆蓋(gai)范圍，系(xi)(xi)統(tong)(tong)中各(ge)個(ge)基(ji)站(zhan)接(jie)收(shou)頻(pin)率(lv)及發射頻(pin)率(lv)一致，因此系(xi)(xi)統(tong)(tong)的頻(pin)譜利用(yong)(yong)(yong)率(lv)高，移(yi)動用(yong)(yong)(yong)戶(hu)在(zai)跨基(ji)站(zhan)漫游時(shi)不(bu)用(yong)(yong)(yong)越區(qu)(qu)切換，不(bu)用(yong)(yong)(yong)進行位置登記，也不(bu)存(cun)在(zai)掉話(hua)現象。整個(ge)系(xi)(xi)統(tong)(tong)不(bu)像集(ji)群蜂窩小區(qu)(qu)通(tong)(tong)(tong)信(xin)那(nei)樣需要(yao)復雜的信(xin)令系(xi)(xi)統(tong)(tong)，系(xi)(xi)統(tong)(tong)結(jie)構簡(jian)單(dan)，適用(yong)(yong)(yong)于林業(ye)用(yong)(yong)(yong)戶(hu)占用(yong)(yong)(yong)頻(pin)率(lv)資源(yuan)少、覆蓋(gai)范圍大(da)、通(tong)(tong)(tong)信(xin)業(ye)務(wu)量低的應用(yong)(yong)(yong)。 

數字IP互聯系統

IP 互聯的基本原(yuan)理是通(tong)過基于TCP/IP協議(yi)的以太(tai)網(wang)將分散的多個中轉臺連(lian)接起來，從而實(shi)現更(geng)廣的通(tong)信覆蓋范圍(wei)。系統結構(gou)簡單，適(shi)用(yong)于林業用(yong)戶大范圍(wei)多基站組(zu)網(wang)應用(yong)。

特點：

?均(jun)能提供豐(feng)富的業(ye)務(wu)功(gong)能，如：單(dan)呼/組呼/全呼/模數兼容/緊(jin)急呼叫/緊(jin)急報(bao)警/遙(yao)暈/遙(yao)斃/終端檢查/環境監聽(ting)/故(gu)障弱化(hua)等(deng)；

?均采用全IP組網，支持多(duo)種(zhong)傳(chuan)輸鏈(lian)路(lu)（IP、E1、無線鏈(lian)路(lu)等）；

?終(zhong)端(duan)可以無縫(feng)漫游，打火(huo)救(jiu)援使用方便；

?調度多極(ji)化，支持分層分級管理；

?完善的互聯(lian)互通(tong)功(gong)能，系統(tong)(tong)可以通(tong)過各種網關來與其(qi)他(ta)系統(tong)(tong)互聯(lian)；

?支持星型(xing)、串型(xing)、樹(shu)型(xing)、環型(xing)等多種組網形態

?提供二次(ci)開發接口，便(bian)于用(yong)戶進行個性開發，擴(kuo)展(zhan)更多種(zhong)類的數據應用(yong)業務(wu)；

?PDT同(tong)播系(xi)統(tong)全網只需一(yi)對頻(pin)點(dian)，解(jie)決(jue)(jue)林區多站建設頻(pin)點(dian)資源緊張的問(wen)(wen)題(ti)(ti)，可有(you)效解(jie)決(jue)(jue)信(xin)號在(zai)重疊覆(fu)蓋(gai)區的同(tong)頻(pin)干擾(rao)問(wen)(wen)題(ti)(ti)，實(shi)現全省林業系(xi)統(tong)通信(xin)覆(fu)蓋(gai)；

方案拓撲圖