自然災害是指自然界的一些突發事件或異常現象，如地震、火山爆發、洪水、颶風、龍卷風等，給人類帶來生命、財產和環境等方面的損失和影響。自然災害的發生往往不可預測，但我們可以提高防災意識并采取一些措施來減少其對我們生活的影響。自然災害監測預警系統基于空間位置已知的衛星定位系統、采用空間后方交會基本原理，實現地面用戶終端設備的絕對定位。是防范和應對自然災害的重要手段，是保障人民群眾生命財產安全的重要措施。
一、產品簡介
GNSS監測系統基于空間位置已知的衛星定位系統、采用空間后方交會基本原理，實現地面用戶終端設備的絕對定位。現場部署的接收機終端，按照既定采集、傳輸頻率將觀測數據遠程無線傳輸至監測中心（一般為云端接收存儲），監測中心對觀測數據即時分析處理，供相關技術、管理部門使用。
從數據流程及功能劃分角度，可將整個監測系統劃分為空間部分、地面基準站部分、監測終端三大部分。
二、產品特點
1.支持BEIDOU B1/B2/B3、GPS L1/L2/L5、GLONASS G1/G2、GALILEO E1/E5a/E5b，4系統11頻點信號，自主開發高精度平差解算軟件，實現多系統多頻點融合高精度定位
2.產品融合傾角、加速度模塊，輔助實現位移數據突變檢測，驅動觀測工作模式的自適應調整
3.產品基于芯片級自主開發，極大降低整體功耗，更加適宜野外連續運行
4.產品支持4G/NB-IoT、無線網橋，以太網等數據通訊傳輸模式，支持MQTT TCP/IP、NTRIP、JT808等通訊協議
5.產品搭載高性能工業級32位ARM內核處理器，本地計算能力強大，內置嵌入式web服務器，可遠程雙向交互
6.依據應用場景和監測需求，支持動（靜）態高精度解算
7.前端嵌入恒星日濾波、卡爾曼濾波、突變檢測等算法，云端融合大數據清理、趨勢分析、灰預測、切線角分析等模型，極大保證數據可靠性
8.產品采用鋁材整銑外殼、內外密封防護、防摔軟膠設計，具有優秀的防護、防摔及減震性能
三、工作條件
工作電壓：12V~36 V
瞬時最大電流：＜5A；工作電流：10mA~120mA
額定功耗：小于1.2W
工作溫度：-40°C?85°C；工作濕度：95%RH
四、技術參數
參數名稱 | 技術指標 |
靜態精度 | 水平精度：土（2.5+0.5x10-6xD） mm |
垂直精度：士（5.0+0.5x10-6xD） mm |
動態精度 | 水平精度：士（8.0+1.0x10-6xD） mm |
垂直精度：士（15.0+1.0x10-6xD） mm |
接收信號類型 | BEIDOUB1/B2/B3、GPSL1/L2/L5、GLONASS G1/G2. GALILEO |
E1/E5a/E5b 4 系統 11 頻點 |
數據采樣頻率 | 1Hz/2Hz/5Hz/10Hz/20Hz 可選 |
接口通訊方式 | RS232，4G/NB-IoT〃電臺通訊 |
工作溫度 | -40C?85℃ |
工作濕度 | 95%RH無凝露 |
防護等級 | IP68 |
沖擊/震動 | 可抗擊2m自由跌落 |
供電方式 | 12?36V直流寬電壓供電 |
差分數據 | RTCM3.2 |
電壓文波 | 100mvp-p（max） |
測速精度 | 0.05m/s |
一體機尺寸 | 213mm×129mm |
一體機重量 | ＜2.2Kg |
軟件概述 | 支持動態、靜態解算，設備狀態管理、成果數據精度評定 |
五、安裝注意事項
1.對空視野較開闊，視野內高度角15°范圍內無成片遮擋物
2.遠離大功率無線電發射源（如電視臺、電臺、微波站等），其距離不小于200米，遠離高壓輸道電線和微波無線電信號傳輸通道，其距離不小于50米
3.附近不應有強烈信號反射物件（如大型建筑物、大面積水域等）
4.交通較為便利，利于施工、施測及后期維護作業
5.基準點測設應根據設計方案執行，其基礎應保證穩定
6.監測點測設應根據設計方案執行，確需微調應與設計單位充分溝通確定
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GNSS在線監測系統基于芯片級自主開發，極大降低整體功耗，更加適宜野外連續運行。通過位移監測，可以及時發現邊坡的變形情況，及時采取措施修復或加固工程結構，保證工程的安全可靠。
GNSS技術提供了高精度的位置信息，確保表面位移監測預警系統能夠準確監測地表或結構表面的位移變化。適用于各種地形和環境條件下的位移監測，具有較強的靈活性和可擴展性。
尾礦庫位移監測系統是一種用于監測地面沉降和位移的設備。它可以被安裝在建筑物、橋梁、隧道、尾礦等結構物上，以便實時檢測和記錄地面變形情況。
表面位移監測系統是一種基于全球導航衛星系統（GNSS）技術的先進系統，旨在實時監測和分析地表或結構表面的位移變化。該系統對于預警地質災害，如滑坡、泥石流等，具有關鍵作用，并能夠幫助相關機構及時采取應對措施，減少災害帶來的損失。
礦區安全防汛在線監測預警系統可實現對山體滑坡、地面沉降等地質災害表面的形變位移監測，從而為地質災害的預警和防治決策提供科學依據，大程度避免和減輕自然災害給人們帶來的損失。
