Real-time Video Monitoring System Based On Zynq

With the increasing safety awareness of people,video surveillance systems are widely used.The traditional analog digital monitoring system technology is difficult to ensure realtime and high efficiency for large-scale and complex monitoring environment,resulting in low efficiency,high server pressure and high cost.In this paper,the key technologies of intelligent video surveillance for moving target detection are explored and studied.A real-time video surveillance system based on Zynq is developed and designed.The system realizes real-time video surveillance through hardware and software co-design.The main research work of this paper is as follows :(1)Study and analyze the classical moving target detection algorithm,and propose a three-frame difference algorithm to detect moving targets.(2)In order to solve the problem of real-time and complex data interaction between the front and back ends,this paper uses Zynq-7000 as the hardware platform of the system.With its ARM + FPGA architecture,the ARM end performs control processing,and the FPGA end implements hardware acceleration on the algorithm.(3)In order to improve the efficiency of video surveillance,this paper only captures,saves and transmits the video with moving targets,so as to solve the problem of inefficiency caused by undifferentiated recording.(4)Hardware module design.The scheme uses OV5640 image acquisition module,Gigabit Ethernet transmission module,HDMI display module,target detection module and other hardware modules to realize multiple functions such as image acquisition,transmission,algorithm acceleration and display.(5)System software design.The register configuration,driver and function call of related IP cores are completed in Xilinx SDK.The test results show that the video surveillance system can realize the detection of moving targets,and has the advantages of reliability,small size and low system power consumption,which fully meets the needs of real-time video surveillance.