林業無線對講系統解決方案

行業背景 

林(lin)業(ye)(ye)系統(tong)承擔著(zhu)保護國家森林(lin)資源以(yi)及促進林(lin)業(ye)(ye)經(jing)濟健康發展(zhan)的重要(yao)責任。我國的林(lin)區(qu)具有集中性強和單位(wei)面積廣袤(mao)的特點，一旦(dan)發生災害性事故，需要(yao)緊急(ji)時間排查危(wei)險(xian)源并對危(wei)險(xian)區(qu)域進行定位(wei)。林(lin)業(ye)(ye)工作對于通(tong)信的需求日(ri)益突(tu)出。

林(lin)業通(tong)(tong)信(xin)系統(tong)建(jian)設以數字(zi)超(chao)短(duan)波技術、無(wu)線(xian)(xian)鏈路組網(wang)技術、視頻傳(chuan)輸(shu)技術等(deng)形成的通(tong)(tong)信(xin)網(wang)絡為(wei)基礎(chu)，著力構建(jian)空中與(yu)地面、有線(xian)(xian)與(yu)無(wu)線(xian)(xian)、固定與(yu)機(ji)動相(xiang)結(jie)合的鏈式、立(li)體(ti)應急通(tong)(tong)信(xin)系統(tong)，全面提高森林(lin)防火(huo)通(tong)(tong)信(xin)的覆蓋率和傳(chuan)遞(di)率，確保在發生森林(lin)火(huo)災(zai)(zai)時(shi)，能夠使用多種通(tong)(tong)信(xin)手段(duan)保障火(huo)災(zai)(zai)信(xin)息傳(chuan)輸(shu)暢通(tong)(tong)，從而最(zui)|大限度減少森林(lin)火(huo)災(zai)(zai)的損(sun)失程度。

為解決(jue)林業(ye)工作日益增長(chang)的(de)(de)通信需求，提升(sheng)林業(ye)工作者的(de)(de)工作效率，達到統(tong)一(yi)指揮的(de)(de)目的(de)(de)，海能(neng)達專門為林業(ye)用戶提供(gong)了一(yi)套(tao)滿足(zu)全省聯(lian)網、可靠性高、使用簡單(dan)、功能(neng)強大(da)的(de)(de)數字無線通訊(xun)系(xi)統(tong)——數字IP互聯(lian)系(xi)統(tong)和(he)PDT數字同播(bo)系(xi)統(tong)。

解決方案

通(tong)(tong)(tong)(tong)(tong)(tong)過仔(zi)細研究分(fen)析林(lin)業(ye)用(yong)戶通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)需求，提供了一套(tao)完善的數(shu)(shu)字無(wu)線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統(tong)解決方案。森(sen)林(lin)防火(huo)(huo)數(shu)(shu)字超短波無(wu)線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)通(tong)(tong)(tong)(tong)(tong)(tong)過建設(she)省(sheng)(sheng)、市(shi)(shi)(shi)級(ji)調(diao)度管理(li)(li)(li)(li)控制中心，縣(xian)（區(qu)(qu)、市(shi)(shi)(shi)）二級(ji)調(diao)度中心，在(zai)重點(dian)森(sen)林(lin)防火(huo)(huo)地區(qu)(qu)（山(shan)區(qu)(qu)）建設(she)固定基站(zhan)，移(yi)動基站(zhan)，軟件管理(li)(li)(li)(li)平臺構建綜(zong)合(he)性的無(wu)線通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)系(xi)統(tong)，形成全省(sheng)(sheng)聯網(wang)(wang)的省(sheng)(sheng)、市(shi)(shi)(shi)、縣(xian)（區(qu)(qu)、市(shi)(shi)(shi)）三級(ji)森(sen)林(lin)防火(huo)(huo)指揮調(diao)度網(wang)(wang)絡框架，在(zai)系(xi)統(tong)覆蓋(gai)范圍內，能夠(gou)確保全省(sheng)(sheng)的通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)并(bing)且(qie)以(yi)縣(xian)（區(qu)(qu)、市(shi)(shi)(shi)）及林(lin)場為(wei)單位建立多個子(zi)(zi)網(wang)(wang)，各(ge)子(zi)(zi)網(wang)(wang)可以(yi)單獨通(tong)(tong)(tong)(tong)(tong)(tong)信(xin)(xin)且(qie)不占用(yong)其他子(zi)(zi)網(wang)(wang)的信(xin)(xin)道(dao)資源。省(sheng)(sheng)、市(shi)(shi)(shi)、縣(xian)（區(qu)(qu)、市(shi)(shi)(shi)）級(ji)調(diao)度管理(li)(li)(li)(li)控制中心對所轄范圍內各(ge)地森(sen)林(lin)防護(hu)人員(yuan)終端進行遠程調(diao)度管理(li)(li)(li)(li)，包括呼(hu)叫控制功(gong)能（個呼(hu)、組呼(hu)、全呼(hu)、緊急報警等），數(shu)(shu)據應用(yong)管理(li)(li)(li)(li)（短信(xin)(xin)息發送(song)、GPS定位信(xin)(xin)息、考勤管理(li)(li)(li)(li)等），同時，系(xi)統(tong)可通(tong)(tong)(tong)(tong)(tong)(tong)過IP網(wang)(wang)絡對各(ge)基站(zhan)的運行狀態進行檢查(cha)并(bing)且(qie)維護(hu)基站(zhan)配置參(can)數(shu)(shu)。

PDT同播系統

PDT同播系(xi)(xi)統(tong)(tong)(tong)是一種分區(qu)覆蓋(gai)的(de)(de)廣域通(tong)(tong)信(xin)系(xi)(xi)統(tong)(tong)(tong)，借助于(yu)多個(ge)(ge)基站(zhan)實現(xian)比單(dan)(dan)基站(zhan)系(xi)(xi)統(tong)(tong)(tong)更廣闊的(de)(de)通(tong)(tong)信(xin)覆蓋(gai)范圍(wei)，系(xi)(xi)統(tong)(tong)(tong)中各個(ge)(ge)基站(zhan)接收頻率(lv)及發射頻率(lv)一致(zhi)，因此系(xi)(xi)統(tong)(tong)(tong)的(de)(de)頻譜利用(yong)(yong)率(lv)高，移動用(yong)(yong)戶在跨基站(zhan)漫游時不用(yong)(yong)越區(qu)切換，不用(yong)(yong)進(jin)行位置登記，也不存(cun)在掉話現(xian)象。整個(ge)(ge)系(xi)(xi)統(tong)(tong)(tong)不像集(ji)群(qun)蜂窩(wo)小區(qu)通(tong)(tong)信(xin)那(nei)樣需(xu)要復雜的(de)(de)信(xin)令系(xi)(xi)統(tong)(tong)(tong)，系(xi)(xi)統(tong)(tong)(tong)結(jie)構(gou)簡單(dan)(dan)，適用(yong)(yong)于(yu)林(lin)業用(yong)(yong)戶占用(yong)(yong)頻率(lv)資源少、覆蓋(gai)范圍(wei)大(da)、通(tong)(tong)信(xin)業務量低的(de)(de)應用(yong)(yong)。 

數字IP互聯系統

IP 互聯的(de)基(ji)本原(yuan)理是通過基(ji)于(yu)TCP/IP協(xie)議的(de)以太網將分散的(de)多個中轉臺(tai)連接起來，從而(er)實現更廣的(de)通信覆蓋范(fan)圍。系統結構簡單，適用(yong)(yong)于(yu)林業用(yong)(yong)戶大范(fan)圍多基(ji)站組網應用(yong)(yong)。

特點：

?均能(neng)提供豐富的業(ye)務功能(neng)，如：單呼(hu)/組呼(hu)/全呼(hu)/模數(shu)兼容/緊急(ji)呼(hu)叫/緊急(ji)報警/遙暈/遙斃/終端(duan)檢查/環境(jing)監聽/故障(zhang)弱化等；

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

?終端可以(yi)無縫漫游，打火救援使用方便；

?調(diao)度多極(ji)化，支持分層分級管理；

?完善的互(hu)聯(lian)互(hu)通功能(neng)，系統(tong)可以(yi)通過各(ge)種網關來(lai)與其他系統(tong)互(hu)聯(lian)；

?支持星型(xing)、串型(xing)、樹型(xing)、環(huan)型(xing)等多(duo)種組網形態

?提供二次(ci)開發接口，便于用戶進行(xing)個性開發，擴展更多種類的數據應(ying)用業務；

?PDT同(tong)播系統(tong)全網只需一對(dui)頻點(dian)，解(jie)(jie)決林(lin)區(qu)多站建設頻點(dian)資源緊張的問(wen)題，可有效解(jie)(jie)決信號在重疊(die)覆蓋(gai)區(qu)的同(tong)頻干擾問(wen)題，實現全省(sheng)林(lin)業系統(tong)通信覆蓋(gai)；

方案拓撲圖