Study And Design On Marine Video Monitoring System Based On S3C6410

With the coming of information age, computer network technology and image processing technology and the rapid development of communication technology greatly continuously promoted the development of monitoring technology. Marine video surveillance which has many advantages compared with the traditional wired one, had been widely used in various fields of social life. To meet the application needs of wireless video surveillance cameras in the helmets of the police, this paper study and design embedded wireless video monitoring system. It in-depth studies the video surveillance capture, coding and transmission.Through in-depth study on embedded technology and digital imaging technology and wireless network transmission technology, a precept of wireless video surveillance system design program based on S3C6410 is presented.This issue focuses on the the research and design of the monitoring terminal.In terms of hardware, select the ZC0301 camera, embedded development board which based on S3C6410 processor and 3G modem according to the needs of video surveillance capture, coding and transmission. The embedded Linux operating system is selected as software platform. According to the hardware platform and embedded Linux,the thesis build a wireless video surveillance hardware and software framework for the terminal, and build development environment, for example, building the cross-compiler development environment based on the embedded systems, analysing the Bootloader start process, the Bootloader transplantation, ARM-Linux kernel configuration and migration for S3C6410 target board. The paper designes the video capture and transmission modules according to application software:in-depth analysis the H.264 main modules, on which the higher complexity of motion estimation and intra prediction algorithm is improved and optimized to improve the coding efficiency, so that the encoder meet the needs of embedded applications, through the integration of collection and coding procedures and transplantation encoder and optimized for the S3C6410 platform to complete video capture and compression module design; to study the transmission control method based on RTP, to send and receive wireless video data by socket to completed the design of video transmission module; Finally, building test environment to analysis results of the encoder performance.The test results showed that in the hardware and software environment, the design of the control terminal of the QCIF resolution video capture and encoding according to H.264 standard, the optimized encoder speed can reach 24 per second, the basic quasi-real-time results can be achieved. To achieve real-time video surveillance, it also depends on further optimization for the Xscale platform and uses higher performance processors and other means.