Research Of ARM9 Video Monitoring System Based On WINCE5.0

With the development of the technology of computer multimedi,video compression coding and network communication,digital video surveillance system rises rapidly, it gradually replaced analog video surveillance transmitter mode which make video image segmentation matrix and video recorder as the core, the transmitter as supplement. In practical applications, if the we need a system that is reliability, lowcost, smallsize , embedded system is the appropriate model. Embedded video surveillance systems with WinCE have the characters: small size, real-time, good stability, user-friendly, low-cost, etc. It can be extanded in many field ,like remote monitoring, industrial control, video conferencing, video telephony, mobile multimedia terminals ect.In this paper ,it mainly introduced the design process of the video surveillance system which based WindowsCE5.0 on the ARM9 platform. Selected the development board with Samsung S3C2440 processor as the hardware platform. Used the usb-camera to capture the real-time image. Through the video capture programs to achieve the real-time image preview, capture, record in WINCE.Design have completed the following job:1. Test platform structures. Install the HyperTerminal,use supervivi to setup BIOS, use ActiveSync4.5 to achieve the synchronization communications between the PC server and the development board.2. Custom system. Use Platfor Builder tools to cut the WinCE core. In accordance with the needs , generate the smallest kernel.3. Usb camera driver prepared. Camera manufacturers did not provide camera driver under WinCE,so write the driver refer to the specific type of camera chip is needed ,though the driver design ,use the stream interface driver model as the reference..4. Procedures for the preparation of video capture, Import the USB camera driver to WinCE core, generation platform SDK,Import SDK into EVC, using the driver interface function to read image data flow, to achieve the functions of capture software. In the development process, using the method of cross compiler to test the usb camera driver and the software of image acquisition. The software fanilly achieved the functions :preview, capture, record the real-time image. PC and development board can achieve the data access and data storage though the network,after the network setting in WinCE.