The Design Of Wireless Video Surveillance System Based On DM8168

With the development of global network,the video surveillance system in the security industry gradually plays an important role in people's lives,which has been widely used in the fields of public security,justice,transportation,finance,energy,buildings,and other industries.In this paper,based on the understanding of EDA technology and owning the hardware building environment,combined the analysis of prospects about video surveillance industry,a hard-ware circuit design scheme for video surveillance system based on chip DM8168 is proposed.Firstly,the paper introduces the design background,current situation and prospects of video surveillance system,the key technologies and features of some wireless video surveillance systems are presented.Then a hardware scheme of wireless video surveillance system is designed.And finally it mainly introduces the circuit principle of DM8168 chip SoC,and the power module and Ethernet module circuit.The DM8168 system circuit and the DDR memory,video acquisition,the expansion of Ethernet and DM8168 connected with the FPGA and interface circuit are designed by using EDA software called Altium Designer,and the initialization procedure of DM8168 connected with the FPGA is given at teh same time.At last,the PCB board of the design is drawn by Altium Designer.