Research Of Embedded Remote Image Monitor And Control System Based On ARM

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,but its large size and high cost,high power consumption,high demand on monitoring the scene also restrict its application. Now under the development of embedded system technology and the urgent requirement reducing system cost and improving system reliability, the network remote monitor and control system will become new research focus.Embedded remote image monitor and control system based on ARM is put into this hot,it folly integrate the breath of internet network and the cut features of hardware and software in embedded system, with its strong practicability it's becoming the new force of monitoring system industry.With its intuitive, convenient, rich information and are widely used in telecommunications, power, banking, transportation, and other occasions.In this paper,the web server program runs under the embedded Linux system platform,it adopts ARM-kernel S3C2410 as its CPU,use digital camera to gather image, store image data after JPEG compression,waiting the client using the browser sent the request to visit in monitoring environment, Server CGI procedures deal with the request information and return results to the browser,by client browser can visit home page in the embedded platform,and to receive image data show. Firstly, this paper introduces characteristic of the embedded system development then briefly presents the system's realization scheme.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 the issue of the construction of the embedded Linux,and then introduces how to use Video4Linux API functions to realize image gathering under embedded Linux.,focuses on how to realize JPEG encoding arithmetic on the basis of the characteristic of the hardware platform. Then aiming at the network monitor and control system structure based on B/S mode, elaborates the concrete realization course and way of network communication and highlights the building of embedded WEB Server and CGI programs principle ,and how to program. Finally, experiment result shows that the system realizes the function of remote monitor and control in LAN or INTERNET and reaches the predetermined target.