| With the development of embedded technology, network technology and image compression technology, video surveillance system has been development rapidly. With the safety of people’s lives become increasingly demanding, it makes video surveillance more and more popular. Because of Miniaturization, system stability, high flexibility, low cost, high integration, and other characteristics of the video surveillance system, it becomes more and more common in their lives and being strong protection for people’s lives.This article is designed based video surveillance system Linux platform. Linux which the kernel can be streamlined is an open-source system supporting a variety of device drivers and a powerful network functions and so on. This paper describes the main chip Hi3520 D that is the core of the board as the platform for the presentation plate and resource development process. Building hardware and software environment for this design, it completes the bootloader boot loader, Linux3.0.y kernel, root file system program portable. And the image acquisition module were introduced, the image codec and video data transmission network were described in detail. Finally, it designs the image display and a video display, storage, playback of application, and the test of whole system. The results show that the system can be properly recording, display and playback.This design uses a modular design concept, so that it can be using for secondary development conveniently. Through testing, each module can function not only implemented separately, can also joint realization. The system is able to achieve the desired video monitoring eventually. |
