基于NVR-VGW网络穿透的野外公路工程视频接入方法  

NVG-VGW-based Network Penetration Method for Mountainous Field Road Video Access

作　　者：陈柯 吕若丹 王世法 刘静 何杰 邝靖 CHEN Ke;LU Ruo-dan;WANG Shi-fa;LIU Jing;HE Jie;KUANG Jing(Chengdu Branch of Sichuan Chengmian Cangba Expressway Co.,Ltd.,Chengdu 641400,China;Sichuan Expressway Construction&Development Group Co.,Ltd.,Chengdu 610047,China;Sichuan Highway Planning,Survey,Design and Research Institute Ltd.,Chengdu 610041,China)

机构地区：[1]四川成绵苍巴高速公路有限责任公司成都分公司,成都641400 [2]四川高速公路建设开发集团有限公司,成都610047 [3]四川省公路规划勘察设计研究院有限公司,成都610041

出　　处：《价值工程》2023年第32期114-116,共3页Value Engineering

基　　金：四川省交通运输科技项目“数字成绵扩容高速公路建设管理平台关键技术与应用研究”(项目编号:2022-ZL-03)。

摘　　要：为保障野外公路工程设施的结构健康安全,需要使用视频设备对结构物进行实时监控。目前常用于野外公路工程设施现场视频设备接入的方式主要有通过摄像头与网络视频录像机NVR结合,或在广域网或专网内,在机房搭建厂商视频服务器,再在现场使用摄像头与NVR结合。两种方式均存在不同程度的缺陷,无法共享视频或不利于在山区野外低宽带且设备远端维护等。本文提出一种性价比高的基于NVR-VGW(网络视频录像机-虚拟网关)网络穿透的野外公路工程视频接入方法,能有效解决现有技术中存在的问题,案例分析展示了该方法实现了在野外没有固定公网IP的情况下,方便第三方平台获取低延时视频数据、宽带消耗减少近半、延时低至1秒、无视频路数限制,且可远端维护设备。To ensure the structural health and safety of field highway engineering facilities,it is necessary to use video equipment to monitor the structures.There are two commonly used methods of accessing video equipment on-site for field roads.The first one combines cameras with network video recorder(NVR),the second one sets up a manufacturing video server in the computer room within a wide area network or private network followed by combining cameras with NVR on-site.Both methods have their drawbacks,such as unable to share video,or unfavorable to low-bandwidth and remote equipment maintenance in mountainous areas.This article proposes a cost-effective video accessing method for field road engineering based on NVR-VGW(Virtual Gateway)network penetration,which can effectively tackle the abovementioned problems.Case studies demonstrate that the proposed method enables third-party platforms to obtain low-latency video data without fixed public IP in field road,reducing bandwidth consumption by nearly half with a low latency of 1 second,no video line limit,and supporting remote equipment maintenance.

关 键 词：公路工程 山区野外 视频接入 网络视频录像机NVR 虚拟网关VGW 

分 类 号：U418.7[交通运输工程—道路与铁道工程] TN925[电子电信—通信与信息系统]