基于FPGA的多视频接口的红外成像系统设计  

Design of infrared imaging system with multiple video port based on FPGA

作　　者：汤正 康美玲 逄浩君 TANG Zheng;KANG Meiling;PANG Haojun(Shanghai Aerospace Control Technology Research Institute,Shanghai 201109,China;Shanghai Aerospace Technology Research Institute,Shanghai 201109,China)

机构地区：[1]上海航天控制技术研究所,上海201109 [2]上海航天技术研究院,上海201109

出　　处：《传感器与微系统》2020年第4期96-98,共3页Transducer and Microsystem Technologies

摘　　要：设计了红外视频采集系统以及显示系统。视频采集系统适用于包含4路或者4路以内读出电路的红外探测器,视频显示系统兼容老式AV/S-Video接口,同时适用于计算机系统视频图形阵列(VGA)模拟视频接口以及高清多媒体接口(HDMI)数字高清视频接口显示终端设备。设计了视频采集和相应视频接口图像输出的硬件电路,包含信号放大电路、模数转换电路、视频信息缓存电路、视频显示数模转换电路、接口的硬件电路等,实现了图像信息采集的数字化以及图像信息显示的模拟化,通过现场可编程门阵列(FPGA)以硬件描述语言构建VGA,AV/S-Video,HDMI时序以完成相应终端设备的显示。Infrared video acquisition system and display system are designed. The video acquisition system is suitable for infrared detectors with no more than 4 channels of readout circuitry. The video display system is compatible with the old AV/S-Video interface. It is also suitable for computer system video graphics array( VGA)analog video interface and high definition multimedia interface( HDMI) digital high-definition video interface display terminal equipment. The hardware circuit for collecting video signal and outputting through the corresponding video interface includes a signal amplifying circuit,an analog-to-digital conversion circuit,a video information buffer circuit,a video display digital-to-analog conversion circuit,an interface hardware circuit,etc,and realizes the digitization of image information collection and the simulation of the image information display,build VGA,AV/S-Video,HDMI timing through the field programmable gate array( FPGA) by the hardware description language to complete the display of the corresponding terminal device.

关 键 词：现场可编程门阵列 AV接口 S视频端口 视频图形阵列 高清多媒体接口 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]