Remote Image Monitor And Control System Based On Embedded Linux

With the rapid development of Internet technology and the increasing mature development of graphics and image technology especially video codec technology, the multimedia network monitor and control system based on traditional PC has already turned into reality. Now under the development of embedded system technology and the urgent requirement reducing system cost and improving system reliability, the remote image monitor and control system will become new research focus. Combining embedded development technology with Internet technology, this paper has realized remote image monitor and control system based on embedded Linux . The web server program runs under the embedded Linux system platform which adopts ARM-kernel S3C2410 as its CPU and acts as Server role in the whole system. It runs by means of backstage and waits for Clients'request by browser tools, thus realizes monitor and control facilities in LAN or INTERNET. Firstly, this paper briefly introduces the system's realization scheme, then presents characteristic of the embedded system development. Based on this, the whole system design is divided into hardware design and software design two parts. In hardware design part, explains especially the interface of S3C2410 CPU chip with memory and network controller chip. In software design part, firstly discusses USB digital camera driver realization and how to use Video4Linux API functions to realize video gathering under Embedded Linux. Secondly, presents especially how to realize JPEG compressed arithmetic on the basis of the characteristic of the hardware platform and the real-time processing demand. Then aiming at two kinds of network monitor and control system structure based on C/S and B/S mode, elaborates the concrete realization course and way of network communication and focuses the building of Embedded HTTP Server. Finally, experiment result shows that the system realizes the function of remote monitor and control in LAN or INTERNET and reaches the predetermined target.