Design of Digital Video Monitoring Unit

A video monitoring system based on embedded platform is introduced.TMS320DM365 is taken as a core processor in the system.An intelligent digital video monitoring unit is designed with the modularization method.The unit consists of four parts: video acquisition input,external memory,Ethernet and viedo output.The advantage of multiple external interfaces is utilized and four chips are selected to meet the viedo processing function of the design.The unit's gathering and input of video uses TVP5158 video decoder is adopted in the video acquisition input section of the unit.W971GG6IB is used for DDR2 SDRAM.The function of NAND flash is achieved by K9F2808U0C.ENC28J60 is employed for Ethernet controller.The processor's working velocity rate of the system is up to 300 MHz.