Banana Pi BPI-R64：4G/5G多卡聚合智能融合通信设备视频图传解...
行业概述
应急指挥车是由中控系统、视频系统、广播系统、灯光系统、供电系统等组成可将图像和声音传送到应急中心做应急处理的车辆，有安全生产、人防、森林、环境等分类，应急指挥车到达现场系统将图像和声音通过传送到几十公里、几百公里的应急中心，供中心做应急处理。
http://img.blog.itpub.net/blog/2021/03/23/bb710564a1e43832.png?x-oss-process=style/bb行业现状
1) 不稳定：受运营商网络覆盖影响，不同区域信号强度不一样，单一通信链路无法也实现热备。
2) 网速慢：受基站信号质量及拥塞影响，单路4G网速较差，高清视频监控等由于网络带宽不够，只能以低画质传输，大数据更是无法传输。
3) 不安全：单一传输通道数据容易被截获，敏感数据在单一通道内传输，安全性差。
4) 性能差：路由器CPU性能差、硬件接口不足，不支持由4G升级到5G。
行业需求
1) 急需解决因基站信号质量及拥堵问题，所产生的低画质传输。
2) 要求对传输内容的加密，提高安全性
3) 需要对系统支持硬件及软件的升级
4) 对硬件、软件费用的减少
解决方案
1) 通过应急车上的采集终端，将车载监控视频以及单兵回传视频通过智能融合通信设备实时传送给指挥中心；同时进行双向的语音通话；
2) 视频传输1080P高清图像，H.264压缩技术，以较低的带宽即可流畅传输视频；
3) 智能融合通信设备可在运营商网络环境差的情况下，保障最少单链路传输，确保视频传输网络的通畅；
4) 智能融合通信设备所有报文都进行ssl加密，避免了泄密，增加安全性。
5) 所有IP化的设备都可以连接到智能网关，接入网络；通过智能中控集中管理，简单易用。
设备应用场景：
http://img.blog.itpub.net/blog/2021/03/23/be829fd0cb352acd.png?x-oss-process=style/bb
嵌入式设备，基于开源硬件banana pi BPI-R64开发。http://img.blog.itpub.net/blog/2021/03/23/627c409938258843.png?x-oss-process=style/bb
1) MNF-620U支持多达5路4G LTE通信模块，加1路5G，多达6路聚合通道，采用小草科技自主研发的多卡聚合协议。
2) 支持多路聚合应用，可以多路聚合传送高清视频 ，
3) 支持5个千兆网口，支持BPI-MT7615802.11 ac wifi无线 ,产品完整实现了5G,4G, 千兆有线网络，wifi无线融合应用。5G融合通信网关，内置5G模块，聚合带宽，适用于大带宽需求的场景。
4)应用在高铁、移动金融、通信车、指挥车、智慧警车、医疗救护、工程及抢险车、货物运输及客运车辆等场景下。
应用场景：http://img.blog.itpub.net/blog/2021/03/23/06285cbfc18bd89a.png?x-oss-process=style/bb4G+5G多卡聚合智能融合通信设备，启用多链路图传技术，填补了国内弱网聚合图传技术空白，是5G基础通讯保障的核心技术。
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