林業無線對講系統解決方案

行業背景 

林(lin)(lin)(lin)業(ye)系統(tong)承擔著保護國家森林(lin)(lin)(lin)資(zi)源以及促(cu)進林(lin)(lin)(lin)業(ye)經濟(ji)健康發展的重要(yao)(yao)責(ze)任(ren)。我國的林(lin)(lin)(lin)區具(ju)有(you)集中性(xing)強和單位面積廣袤的特(te)點，一旦發生(sheng)災害性(xing)事故(gu)，需(xu)要(yao)(yao)緊急(ji)時(shi)間(jian)排(pai)查危(wei)險(xian)(xian)源并(bing)對(dui)危(wei)險(xian)(xian)區域進行定位。林(lin)(lin)(lin)業(ye)工作對(dui)于通信的需(xu)求日益突出。

林(lin)業通信(xin)系統建設(she)以(yi)數(shu)字超短(duan)波(bo)技(ji)術(shu)、無線(xian)鏈路組網技(ji)術(shu)、視頻(pin)傳(chuan)輸技(ji)術(shu)等形成的(de)通信(xin)網絡為基礎，著力構(gou)建空(kong)中與地面、有(you)線(xian)與無線(xian)、固定與機(ji)動相結合的(de)鏈式、立(li)體應急(ji)通信(xin)系統，全面提(ti)高森林(lin)防火通信(xin)的(de)覆蓋率(lv)和傳(chuan)遞(di)率(lv)，確保在發生森林(lin)火災(zai)(zai)時，能夠使(shi)用多(duo)種通信(xin)手段(duan)保障火災(zai)(zai)信(xin)息傳(chuan)輸暢通，從而最|大限(xian)度(du)減少(shao)森林(lin)火災(zai)(zai)的(de)損(sun)失程度(du)。

為(wei)解決林(lin)業工(gong)作(zuo)日益增長的(de)通(tong)信需求，提(ti)升林(lin)業工(gong)作(zuo)者的(de)工(gong)作(zuo)效率(lv)，達(da)到統一指(zhi)揮的(de)目的(de)，海(hai)能(neng)達(da)專門(men)為(wei)林(lin)業用戶提(ti)供了一套(tao)滿(man)足全省聯網(wang)、可靠性(xing)高、使(shi)用簡單、功能(neng)強大的(de)數(shu)字(zi)無線(xian)通(tong)訊(xun)系(xi)(xi)統——數(shu)字(zi)IP互(hu)聯系(xi)(xi)統和PDT數(shu)字(zi)同播(bo)系(xi)(xi)統。

解決方案

通(tong)(tong)(tong)(tong)過仔細研究分析林(lin)(lin)(lin)業用(yong)戶通(tong)(tong)(tong)(tong)信需(xu)求，提供了一套完善的(de)數(shu)字無(wu)線(xian)通(tong)(tong)(tong)(tong)信系統(tong)(tong)解決方案(an)。森(sen)林(lin)(lin)(lin)防(fang)火數(shu)字超短波無(wu)線(xian)通(tong)(tong)(tong)(tong)信通(tong)(tong)(tong)(tong)過建設(she)省(sheng)、市(shi)(shi)(shi)級調(diao)度管(guan)理控制中心，縣(xian)（區(qu)、市(shi)(shi)(shi)）二級調(diao)度中心，在重點森(sen)林(lin)(lin)(lin)防(fang)火地區(qu)（山區(qu)）建設(she)固定基站(zhan)(zhan)，移動基站(zhan)(zhan)，軟(ruan)件管(guan)理平臺構建綜合性的(de)無(wu)線(xian)通(tong)(tong)(tong)(tong)信系統(tong)(tong)，形成全(quan)省(sheng)聯網(wang)的(de)省(sheng)、市(shi)(shi)(shi)、縣(xian)（區(qu)、市(shi)(shi)(shi)）三級森(sen)林(lin)(lin)(lin)防(fang)火指揮(hui)調(diao)度網(wang)絡框架，在系統(tong)(tong)覆蓋范圍內(nei)，能(neng)(neng)夠(gou)確保(bao)全(quan)省(sheng)的(de)通(tong)(tong)(tong)(tong)信并且(qie)以縣(xian)（區(qu)、市(shi)(shi)(shi)）及(ji)林(lin)(lin)(lin)場為單位(wei)建立多個(ge)子網(wang)，各(ge)子網(wang)可以單獨(du)通(tong)(tong)(tong)(tong)信且(qie)不占用(yong)其他子網(wang)的(de)信道資源(yuan)。省(sheng)、市(shi)(shi)(shi)、縣(xian)（區(qu)、市(shi)(shi)(shi)）級調(diao)度管(guan)理控制中心對所轄范圍內(nei)各(ge)地森(sen)林(lin)(lin)(lin)防(fang)護人員終端(duan)進行(xing)遠程(cheng)調(diao)度管(guan)理，包(bao)括呼(hu)(hu)(hu)叫控制功(gong)能(neng)(neng)（個(ge)呼(hu)(hu)(hu)、組呼(hu)(hu)(hu)、全(quan)呼(hu)(hu)(hu)、緊急報警等），數(shu)據應用(yong)管(guan)理（短信息(xi)發送、GPS定位(wei)信息(xi)、考勤(qin)管(guan)理等），同(tong)時，系統(tong)(tong)可通(tong)(tong)(tong)(tong)過IP網(wang)絡對各(ge)基站(zhan)(zhan)的(de)運行(xing)狀(zhuang)態進行(xing)檢查并且(qie)維護基站(zhan)(zhan)配置(zhi)參(can)數(shu)。

PDT同播系統

PDT同播(bo)系(xi)(xi)統(tong)(tong)(tong)是一種分區(qu)覆蓋的(de)廣域通(tong)(tong)信(xin)(xin)(xin)系(xi)(xi)統(tong)(tong)(tong)，借(jie)助(zhu)于多個(ge)基(ji)站實現(xian)比單基(ji)站系(xi)(xi)統(tong)(tong)(tong)更廣闊的(de)通(tong)(tong)信(xin)(xin)(xin)覆蓋范圍，系(xi)(xi)統(tong)(tong)(tong)中(zhong)各(ge)個(ge)基(ji)站接收(shou)頻(pin)率及發射頻(pin)率一致，因此系(xi)(xi)統(tong)(tong)(tong)的(de)頻(pin)譜利用(yong)(yong)率高(gao)，移動(dong)用(yong)(yong)戶在跨基(ji)站漫游時不(bu)用(yong)(yong)越區(qu)切換，不(bu)用(yong)(yong)進行位置登記，也(ye)不(bu)存在掉話(hua)現(xian)象。整個(ge)系(xi)(xi)統(tong)(tong)(tong)不(bu)像(xiang)集群蜂窩小區(qu)通(tong)(tong)信(xin)(xin)(xin)那樣(yang)需要(yao)復雜(za)的(de)信(xin)(xin)(xin)令系(xi)(xi)統(tong)(tong)(tong)，系(xi)(xi)統(tong)(tong)(tong)結構(gou)簡單，適用(yong)(yong)于林業用(yong)(yong)戶占(zhan)用(yong)(yong)頻(pin)率資(zi)源少、覆蓋范圍大、通(tong)(tong)信(xin)(xin)(xin)業務量低(di)的(de)應用(yong)(yong)。 

數字IP互聯系統

IP 互聯的基本原理是(shi)通過基于(yu)TCP/IP協議的以(yi)太網將分散(san)的多個中轉臺連接起來，從而實(shi)現更廣(guang)的通信覆(fu)蓋范圍。系統結構簡單，適用(yong)于(yu)林業用(yong)戶大范圍多基站組(zu)網應用(yong)。

特點：

?均能(neng)提供豐(feng)富的業務功能(neng)，如：單呼/組呼/全(quan)呼/模數兼(jian)容/緊(jin)急(ji)呼叫(jiao)/緊(jin)急(ji)報警/遙暈/遙斃/終端檢(jian)查/環(huan)境監聽/故(gu)障弱化等；

?均采(cai)用(yong)全IP組網，支持多種(zhong)傳輸鏈路（IP、E1、無線(xian)鏈路等）；

?終端可以無縫漫游，打(da)火救援使用方便；

?調度(du)多極化，支持分(fen)層分(fen)級管理；

?完(wan)善的(de)互聯互通(tong)功能，系(xi)統(tong)可以(yi)通(tong)過(guo)各種網關來與其(qi)他(ta)系(xi)統(tong)互聯；

?支持星(xing)型(xing)、串(chuan)型(xing)、樹型(xing)、環(huan)型(xing)等多種組網(wang)形態

?提(ti)供二次開發(fa)接口(kou)，便于用(yong)戶進行(xing)個性開發(fa)，擴展更(geng)多種類(lei)的(de)數據應用(yong)業(ye)務；

?PDT同播系統(tong)全網只需一對(dui)頻點，解決(jue)林區(qu)多站建設頻點資源緊張的問題，可(ke)有效解決(jue)信號在重疊覆蓋區(qu)的同頻干擾問題，實現全省林業系統(tong)通信覆蓋；

方案拓撲圖