Research On Embedded Video-capture Based On ARM

As the important component of security system, the video monitor system is a powerful integrated one. It has been used in many cases for its visualization, convenience and abundant information. The video monitor system is the expert system that could adapt to the synthetically strict request of the application system on function, dependability, cost, volume and so on, application as the focus, with reducible soft and hard ware, that is, a custom-made appropriative system for monitor system. Embedded video monitor system is composed of embedded processor, relevant trunk hardware, embedded operating system and applications, etc. It's an independent device that integrates software and hardware. Embedded-application will be one important development direction for the fields of video monitor.The thesis mainly studies how to tailor the Linux in embedded system, and the design of the video capture module based on ARM structure, As a complete unit, it can be divided into two major part for hardware and software. The research of systematic hardware mainly includes: the architecture of ARM2410 microprocessor, the structure and function of USB controller and the COMS sensor; the research of systematic software mainly includes: studying the structure of kernel for Linux and methods of tailoring (Linux), the design of BootLoader, the design of USB driver in Linux,, and the implement of video capture, etc.We choose Linux as an embedded operating system, and have design the concrete software and hardware scheme according to the characteristic of the system. The system has transmitted the digital output signal of video recording part to ARM development board through USB port, and displayed video content through PC. The thesis has introduced the transplantation of embedded system leading procedure-Boot Loader, the transplantation and tailor of Linux kernel, and major relevant technology used during embedded system development. On the basis of the detailed analysis, study, and employ, we realize the function of embedded system video capture and display based on HHARM2410 development board.