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振动光纤工作原理

光纤振动传感应用了“光弹效应”的机理。

当有外界扰动作用在光缆上时,引起感应光缆中传输光相位变化。

通过采集变化量,经光电转换采集解析之后就能得到振动信息,从而判断是否有入侵行为。

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相对于其他周界报警系统

振动光纤系统品类优势

前端设备全无源,更适用于易燃易爆场所


传感光缆采用柔性材质便于隐蔽、随形安装 


单套系统探测距离广,在长距离周界应用中综合成本更低


能监测到摄像机无法覆盖区域,适用地下管线、城市管廊防范


为什么选择嵌入式linux振动光纤

嵌入式LINUX振动光纤系统核心优势

嵌入式结构

集成采集、运算、分析功能于一体,减少数据传输转换时间提高时效性;采集的位宽更高,准确还原现场振动信号,报警更准确。

微秒级信号处理速度

采用专用的工业级芯片可实现硬件加速,信号处理速度达到微秒级,

避免丢失采样数据引发的漏报

全频谱技术分析更准确

采用高中低频分析技术,通过不同频谱收集的振动信号特征区别入侵和干扰信号,自动识别风、雪、雨、车辆、动物等。

定制版linux系统更安全

 裁剪了不需要的系统业务,不可安装第三方软件,避免木马病毒入侵,同时关闭非必要的网络端口,将网络攻击风险降到最低。摒弃对windows系统依赖,大部分元器件实现国产化,国产化率达到90%。

F7系列嵌入式linux定位型振动光纤

1.6W点同时定位可还原入侵轨迹

能同时定位多个入侵点报警点位,预设后系统可以完整还原不法分子的入侵线路

定位精度±1米配合监控实现定点抓拍

定位精度最高±1米,为摄像机提供精准预置位,实现精准抓拍,提高视频分析的准确率。

长距离探测可达120km

最长探测距离可达120km,长距离周界成本更低,安装维护更方便

一键排查断纤点

系统软件一键自动识别传感光缆长度,便于查询断纤点,安装维护方便,不需要专业的OTDR工具。

可设置点位白名单

在振动光缆安装的范围内,可通过将部分区域的点位设置为白名单点位,灵活设置免探测区域。

环网断纤工作

采用双通道光纤主机组成环网,传感光缆被剪断后系统依然可以正常工作

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F5系列嵌入式linux防区型振动光纤

抗七级风

七级风环境下与入侵行为时,可直观区分入侵和风干扰信号,不会发生漏误报。

触发报警快

入侵和断纤报警触发时间1s

支持设置单个防区的静态报警阈值

可设置分别设置每个防区的静态报警阈值,方便适配单个项目中不同区域不同的现场环境。

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嵌入式振动光纤经典案例

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