The Video Capture And Transmission System For Transport Based On Embedded Linux

Nowadays transport system towards intelligence gradually. If the traffic control centerand citizens could master the information of key areas of traffic intuitively and timely, such asthe crossroads, accident spot and parking lots, they will take measures immediately or choosethe suitable road to avoid the urban traffic jam to some extent. This article researches a videocapture and transmission system for transport which based on embedded Linux, internet andJPEG compression technology etc., to provide a good support for the traffic surveillance.According to the idea of internet of thing, this video capture and transmission system isinvolved to internet, by using of embedded Linux, camera device, compression codingtechnology and open source project mjpg-streamer to capture and transfer the image, andmake the user master the traffic situation by internet browser. In this way, the server,compression and decoding sections are integrated in a small device, so that the networkcabling is simplified, and use of cables and equipments is reduced, meanwhile it is convenientbecause of the plug and play. Besides the user will access the server easily just by a normalPC with browser without any client.This article give out a solution of video capture and transmission system for transportbased on embedded Linux, make use of the VPN technology based on PPTP protocol into thenetworking; improve a part of JPEG’s encoding; transplant the project mjpg-streamer into theARM11system successfully. Finally an experiment which realizes the video capture andtransmission system with a normal PC and embedded server proves the possibility of thissystem.