Design And Implementation Of Network Isolation And Video Transmission System Based On Machine Vision

With the progress of the times and the development of science and technology,the science and technology has brought increasing conveniences.People's lifestyle has also been subtly changed,and people have more and more needs for science and technology.The development and progress of network technology and video codec technology make the application of real-time video transmission more and more widely.Many companies and organizations have field missions in which customers want to send realtime conditions for performing field missions to the organization without to be viewed by other unrelated people,so design a dedicated video transmission platform has a very important significance;Besides,the development of the Internet also makes the security threats increase.Therefore,some units that require higher secrecy must not directly or indirectly connect with the Internet in order to ensure the security of the intranet.Many computers distributed in the intranet and the extranet need to frequently exchange large amounts of data.In the traditional method of data exchange,the utilization rate of the CD is low,the real physical isolation is not achieved by the data exchange network and the gatekeeper,to a certain extent,the network security is reduced.Therefore,the establishment of an internal and external network physical isolation system,to achieve data exchange based on network isolation is also an urgent need for the development of various businesses.This paper use the open source video codec library FFmpeg making mobile phone video captured in real-time encoding and compression,transmitted to the Internet through the Internet server and server decoding,display and preservation;In this paper,the video captured by mobile phone is encoded and compressed in real time through open source video codec FFmpeg,which is transmitted to the external network server through the Internet,and is decoded,displayed and saved on the server.In addition,this paper aims at the existing problems of network isolated transmission technology and fully considers the requirements of network security,designs and implements a network isolated transmission system based on machine vision.The system of this paper is made up of three parts,it is the client of the mobile phone,the broadcast server(outer network server)and the perception server(intranet server)respectively.The mobile client uses H.264 to encode the video frame in real time,and then send it to the broadcast server for decoding,playing and saving via the Internet;In addition,the mobile server also supports the geographical location,documents,text and other information sent to the broadcast server;When receiving the video stream,the system displays the decoded signal in the display.When receiving other information,the system encodes as image block by the algorithm of machine vision and displays in the display.The perception server is connected with a high-definition camera,real-time capturing the data of the broadcast server display screen by the camera,then identifying the video data captured by the camera.After recognition,the file information is restored to the corresponding file and written to the perception server,thereby achieving the purpose of network isolation and transmission.In this paper,a dedicated video transmission system is implemented and a physical isolation system based on machine vision is realized.The system that meets the needs of dedicated video transmission,it also in the exchange of information based on the protection of the internal network security.This article is a military project.The contents and techniques mentioned in the article are true and reliable,some of which are confidential and can't be described in detail.