基于DM368的无人机视频压缩系统的设计

发布时间：2018-01-31 05:41

  本文关键词： 无人机 DM 视频压缩 H编码　出处：《液晶与显示》2014年06期 　论文类型：期刊论文

【摘要】：无人机视频数据的实时压缩处理是无人机的关键技术之一。本文以DM368为核心处理器,以嵌入式Linux为板级操作系统,设计出一套可供无人机使用的低功耗视频实时压缩系统。与传统的嵌入式视频H264软件编码压缩系统相比,本系统依赖DM368内嵌的视频协处理硬核处理H264编码,具有功耗低,处理延迟小,外部电路简单等诸多优势。同时系统以嵌入式Linux为板级操作系统,实时性强,可稳定高效的管理视频采集、硬核调度、串口通讯、数据输出等诸多任务。试验结果表明,本系统在处理PAL制式为视频源的H264编码任务时,平均功耗仅为1.5W,具有功耗低、成本低、体积小、重量轻、实时性强等诸多优势,能够满足无人机视频压缩的应用需求。
[Abstract]:The real-time compression and processing of UAV video data is one of the key technologies of UAV. This paper takes DM368 as the core processor and embedded Linux as the board operating system. A low power real-time video compression system for UAV is designed, which is compared with the traditional embedded video H264 coding system. The system relies on DM368 embedded video coprocessing hard core processing H264 coding, with low power consumption and small processing delay. At the same time, the system takes embedded Linux as the board level operating system, which is real-time, stable and efficient to manage video collection, hard core scheduling, serial communication. The experimental results show that the average power consumption of H264 coding task with PAL is only 1.5W, which has low power consumption, low cost and small volume. Light weight, strong real-time and many other advantages, can meet the needs of UAV video compression applications.
【作者单位】： 中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：吉林省2013年度博士后科研项目(No.RB20131)
【分类号】：V279;TN919.81
【正文快照】： 1引言无人机是一种近年来倍受各国青睐的高性能信息化装备,具有起降简单,操作灵活,成本低廉,不惧伤亡等多种优势。无人机的出现极大丰富和改变了战争的模式,在航空侦察、情报支援、电子干扰等诸多领域发挥着不可替代的作用[1-2]。无人机在实战中体现出的最大优势在于情报获取，

本文编号：1478354