CAJ | 학술논문

综合国内外监控技术的发展特点,同时为了弥补市面上监控系统的监控范围、监控点数、监控质量的不足,介绍了一种基于现场可编程门阵列( FPGA)的360°全景视频采集和网络传输系统的实现方法. 设计中采用8个CMOS图像传感器OV9650采集全景视频,由一片复杂可编程逻辑器件( CPLD)对视频数据进行预处理然后送给FPGA,在FPGA内进行两路缓存,一路缓存传给由2个NIOS II软核和相应外设组成的SOPC系统,其中2个NIOS II软核分别负责接收全景视频数据并缓存、打包视频数据并进行网络传输,由PC机接收实现远程监控;另一路缓存传给由ADV7123( DA芯片)构成的VGA显示模块,接上CRT显示器播放实现本地常规监控. 该系统选择Altera公司提供的FPGA开发板作为实验平台,测试结果表明该全景监控系统达到了预期目标.
종합국내외감공기술적발전특점,동시위료미보시면상감공계통적감공범위、감공점수、감공질량적불족,개소료일충기우현장가편정문진렬( FPGA)적360°전경시빈채집화망락전수계통적실현방법. 설계중채용8개CMOS도상전감기OV9650채집전경시빈,유일편복잡가편정라집기건( CPLD)대시빈수거진행예처리연후송급FPGA,재FPGA내진행량로완존,일로완존전급유2개NIOS II연핵화상응외설조성적SOPC계통,기중2개NIOS II연핵분별부책접수전경시빈수거병완존、타포시빈수거병진행망락전수,유PC궤접수실현원정감공;령일로완존전급유ADV7123( DA심편)구성적VGA현시모괴,접상CRT현시기파방실현본지상규감공. 해계통선택Altera공사제공적FPGA개발판작위실험평태,측시결과표명해전경감공계통체도료예기목표.
In order to make up for the insufficiency in the monitoring range, monitoring points and monitoring quali-ty of the monitoring system sold on the market, by synthesizing the development characteristics of surveillance tech-nologies in China and abroad, this paper introduces a method of panoramic video capturing and network transmis-sion system based on the field-programmable gate array ( FPGA) . Eight CMOS image sensors called OV9650 are used to capture video data in the design. The video data are cached in two ways in FPGA after being pre-processed by a complex programmable logic device ( CPLD) chip. Some data are used to realize remote surveillance, which are inputted to the SOPC system consisting of dual NIOS II soft-cores and relevant peripherals, among which the dual NIOS II soft-cores are responsible for accepting, caching and packing video data and network transmission, then the video data are accepted and played by a computer;The others are used to realize local surveillance, which are inputted to the VGA module consisting of ADV7123 chips, i.e. DA chips, then the video data are displayed by a displayer. The system chooses FPGA development board provided by Altera as the test platform. The experimental results illustrate that the panoramic monitoring system can achieve the expected goals.