Embedded Digital Video Recorder

This dissertation presents the design and investigation of an embedded Digital Video Recorder. The system is developed based on high performance embedded processor and DSP processor. The MPEG-4 technology, MP3 technology, embedded Linux, and stream media technology are employed in the system. This system could monitor 4-channel video input both locally and through the network. It possesses the advantages of small package, low power consuming, and high reliability.Chapter 1 comprehensively describles the aim of the research project and the recent research level of digital video recorder, embedded system and video compression technology.Chapter 2 introduces the software development environment and the programming techniques adopted in the system. It includes both compile environment and embedded linux.Chapter 3 presents the architecture of the software solution and briefly introduces the features of each software module.Chapter 4 presents the solution of software and introduces IPC between processes in detail.Chapter 5 explains the software test method. For futher, test solution and test cases targeted on this system are presented with the final test resultChapter 6 summarizes the research conclusion and investigates the further development of the system.