林業無線對講系統解決方案

行業背景 

林業系統承擔(dan)著保護國家森(sen)林資源以及促進(jin)林業經濟健康(kang)發展的重要責任。我國的林區具有(you)集(ji)中性強和單位面積廣袤(mao)的特(te)點，一(yi)旦(dan)發生災害(hai)性事故(gu)，需要緊急時(shi)間排查危險源并對(dui)危險區域進(jin)行(xing)定位。林業工作對(dui)于通信的需求日益突出。

林(lin)業通(tong)(tong)(tong)(tong)信(xin)系(xi)統建(jian)設以數(shu)字超短(duan)波技術、無(wu)線鏈路組網技術、視(shi)頻傳輸(shu)技術等形成的(de)通(tong)(tong)(tong)(tong)信(xin)網絡(luo)為基礎，著力構建(jian)空中與地面(mian)、有線與無(wu)線、固定與機動相結(jie)合的(de)鏈式、立體(ti)應急通(tong)(tong)(tong)(tong)信(xin)系(xi)統，全面(mian)提高森(sen)林(lin)防火(huo)通(tong)(tong)(tong)(tong)信(xin)的(de)覆蓋率和傳遞率，確保(bao)在(zai)發生森(sen)林(lin)火(huo)災(zai)(zai)時，能夠使用多種通(tong)(tong)(tong)(tong)信(xin)手段保(bao)障火(huo)災(zai)(zai)信(xin)息傳輸(shu)暢通(tong)(tong)(tong)(tong)，從而最|大限(xian)度減少森(sen)林(lin)火(huo)災(zai)(zai)的(de)損失程度。

為解決林(lin)(lin)業(ye)工(gong)作日益增長的(de)(de)通(tong)信需求，提升林(lin)(lin)業(ye)工(gong)作者(zhe)的(de)(de)工(gong)作效率，達(da)到統一指揮的(de)(de)目的(de)(de)，海能(neng)達(da)專門為林(lin)(lin)業(ye)用戶提供了一套(tao)滿足全省聯網、可靠性高、使用簡單(dan)、功能(neng)強大的(de)(de)數字(zi)無線通(tong)訊系(xi)(xi)統——數字(zi)IP互聯系(xi)(xi)統和PDT數字(zi)同(tong)播系(xi)(xi)統。

解決方案

通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)仔細研究分析(xi)林(lin)(lin)業用戶通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)需求，提供了(le)一套完善(shan)的(de)(de)數(shu)(shu)字無線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統解決方案。森林(lin)(lin)防(fang)火數(shu)(shu)字超短(duan)波無線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)建(jian)(jian)設省、市(shi)級調度管(guan)(guan)理(li)(li)控制(zhi)中(zhong)心，縣(xian)（區、市(shi)）二級調度中(zhong)心，在(zai)重點森林(lin)(lin)防(fang)火地區（山區）建(jian)(jian)設固(gu)定(ding)基(ji)站(zhan)(zhan)，移動基(ji)站(zhan)(zhan)，軟件管(guan)(guan)理(li)(li)平臺構建(jian)(jian)綜合性的(de)(de)無線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統，形(xing)成全(quan)(quan)省聯網(wang)的(de)(de)省、市(shi)、縣(xian)（區、市(shi)）三(san)級森林(lin)(lin)防(fang)火指(zhi)揮調度網(wang)絡框架，在(zai)系(xi)統覆蓋(gai)范圍內，能夠(gou)確保(bao)全(quan)(quan)省的(de)(de)通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)并(bing)且(qie)(qie)以縣(xian)（區、市(shi)）及林(lin)(lin)場為單位建(jian)(jian)立多個子網(wang)，各子網(wang)可以單獨(du)通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)且(qie)(qie)不占用其他子網(wang)的(de)(de)信(xin)(xin)道資源。省、市(shi)、縣(xian)（區、市(shi)）級調度管(guan)(guan)理(li)(li)控制(zhi)中(zhong)心對(dui)(dui)所(suo)轄范圍內各地森林(lin)(lin)防(fang)護人員終端進行遠程調度管(guan)(guan)理(li)(li)，包括呼(hu)叫(jiao)控制(zhi)功(gong)能（個呼(hu)、組呼(hu)、全(quan)(quan)呼(hu)、緊急報警等），數(shu)(shu)據應用管(guan)(guan)理(li)(li)（短(duan)信(xin)(xin)息發送、GPS定(ding)位信(xin)(xin)息、考勤(qin)管(guan)(guan)理(li)(li)等），同時，系(xi)統可通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)IP網(wang)絡對(dui)(dui)各基(ji)站(zhan)(zhan)的(de)(de)運行狀(zhuang)態進行檢查并(bing)且(qie)(qie)維(wei)護基(ji)站(zhan)(zhan)配置參(can)數(shu)(shu)。

PDT同播系統

PDT同播系統(tong)(tong)(tong)是(shi)一(yi)種分區(qu)(qu)(qu)覆蓋(gai)的(de)(de)廣(guang)域通信(xin)系統(tong)(tong)(tong)，借助于多(duo)個基站(zhan)實現(xian)比單(dan)基站(zhan)系統(tong)(tong)(tong)更(geng)廣(guang)闊(kuo)的(de)(de)通信(xin)覆蓋(gai)范(fan)圍，系統(tong)(tong)(tong)中(zhong)各個基站(zhan)接收頻(pin)率及發射頻(pin)率一(yi)致，因此系統(tong)(tong)(tong)的(de)(de)頻(pin)譜利用(yong)(yong)(yong)(yong)率高，移動用(yong)(yong)(yong)(yong)戶在(zai)跨基站(zhan)漫(man)游時不(bu)用(yong)(yong)(yong)(yong)越區(qu)(qu)(qu)切(qie)換(huan)，不(bu)用(yong)(yong)(yong)(yong)進(jin)行(xing)位置(zhi)登記，也不(bu)存(cun)在(zai)掉(diao)話現(xian)象。整個系統(tong)(tong)(tong)不(bu)像(xiang)集群蜂窩(wo)小區(qu)(qu)(qu)通信(xin)那樣需要(yao)復雜的(de)(de)信(xin)令系統(tong)(tong)(tong)，系統(tong)(tong)(tong)結構簡單(dan)，適用(yong)(yong)(yong)(yong)于林業用(yong)(yong)(yong)(yong)戶占用(yong)(yong)(yong)(yong)頻(pin)率資源(yuan)少、覆蓋(gai)范(fan)圍大、通信(xin)業務(wu)量低的(de)(de)應(ying)用(yong)(yong)(yong)(yong)。 

數字IP互聯系統

IP 互聯的基本(ben)原理是通過基于(yu)TCP/IP協議的以(yi)太網將分(fen)散(san)的多(duo)個中(zhong)轉臺連(lian)接起來，從(cong)而實現更廣的通信覆蓋范圍。系統結(jie)構(gou)簡(jian)單，適用于(yu)林業用戶(hu)大范圍多(duo)基站組網應用。

特點：

?均能(neng)(neng)提供(gong)豐富的業(ye)務功能(neng)(neng)，如：單呼(hu)/組呼(hu)/全呼(hu)/模(mo)數兼(jian)容/緊急(ji)呼(hu)叫/緊急(ji)報(bao)警/遙(yao)暈/遙(yao)斃/終(zhong)端檢(jian)查/環境監(jian)聽(ting)/故障弱化(hua)等；

?均(jun)采(cai)用(yong)全IP組網(wang)，支持多種傳(chuan)輸(shu)鏈路（IP、E1、無線鏈路等）；

?終端可(ke)以(yi)無縫漫(man)游(you)，打火救援使用方(fang)便；

?調度多極化，支持分層(ceng)分級管理；

?完善的互(hu)(hu)聯互(hu)(hu)通功能，系統可以通過(guo)各種網(wang)關來與其(qi)他系統互(hu)(hu)聯；

?支持星型(xing)(xing)(xing)、串型(xing)(xing)(xing)、樹型(xing)(xing)(xing)、環型(xing)(xing)(xing)等(deng)多種組網形態(tai)

?提供二次(ci)開發接口，便于用(yong)戶進行個性開發，擴(kuo)展(zhan)更(geng)多種類(lei)的數據應(ying)用(yong)業務；

?PDT同(tong)播系統全網只需(xu)一(yi)對頻(pin)點，解(jie)決(jue)林區多站建設頻(pin)點資源緊張(zhang)的(de)問題，可有效解(jie)決(jue)信號(hao)在(zai)重疊覆蓋區的(de)同(tong)頻(pin)干擾問題，實現全省(sheng)林業系統通信覆蓋；

方案拓撲圖