Research on Video Sub-system of Video Transmission System Based on Hierarchical Wireless Network
|Course||Computer System Architecture|
|Keywords||Stratified Wireless Ad Hoc Networks Video Capture Video encoding and decoding Real - time video transmission|
This article describes a detailed discussion of the information transmission system based on the hierarchical wireless Ad Hoc networks , and achieve self- real - time video system video subsystem . The system has high research value and broad application prospects , the main application areas include field command of the firefighting and construction supervision guidance . This article discusses video capture, encoding , decoding , and transmission , as well as the contents of the Linux operating system , C / C - language program development and video database . The article mainly includes the content of the video data collection , the use of MPEG - 4 codec 's , as well as the RTP network transmission technology research and implementations . In addition, this paper also proposed the concept of video dynamic secondary compression were used to select the appropriate video encoding and dynamic parameter experimental secondary compression , and video playback and video database . The first half of this paper briefly the choice of system development background , meaning , the main tasks and related technologies used in the system development , hardware and software environment . The second half to fire application , for example , the first from the macro to discuss the overall architecture of the system , the system is divided into two , three basic functional units of firefighters , fire engines and command vehicles . Then, starting from the point of view of the system of the video data stream , the three basic types of functional units , and a detailed analysis of the key details of the video system design and implementation process . In addition , the article still in the discussion of system implementation details are described briefly used in some systems to key functions . Finally, a summary of the design process of the system , and put forward a number of recommendations on the follow-up development work .