Design of UAV video encoding system based on DM 368

WU Xiao-tian; LU Jian-feng; WANG Yu-qing; CHEN Dian-bing

doi:10.3788/YJYXS20142906.1117

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Design of UAV video encoding system based on DM 368

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- Design of UAV video encoding system based on DM 368
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 6, Pages: 1117-1123(2014)
- 作者机构：
  
  1. 中国科学院大学北京,510640
  2. 中国科学院长春光学精密机械与物理研究所, 吉林长春 510640
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142906.1117
  CLC： TP394.1;TH691.9
- Received：15 June 2014，
  
  Revised：30 July 2014，
  
  Published：05 December 2014
- 稿件说明：
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吴笑天, 鲁剑锋, 王宇庆, 陈典兵. 基于DM368的无人机视频压缩系统的设计[J]. 液晶与显示, 2014,29(6): 1117-1123

WU Xiao-tian, LU Jian-feng, WANG Yu-qing, CHEN Dian-bing. Design of UAV video encoding system based on DM 368[J]. , 2014,29(6): 1117-1123
吴笑天, 鲁剑锋, 王宇庆, 陈典兵. 基于DM368的无人机视频压缩系统的设计[J]. 液晶与显示, 2014,29(6): 1117-1123 DOI： 10.3788/YJYXS20142906.1117.

WU Xiao-tian, LU Jian-feng, WANG Yu-qing, CHEN Dian-bing. Design of UAV video encoding system based on DM 368[J]. , 2014,29(6): 1117-1123 DOI： 10.3788/YJYXS20142906.1117.

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1.5 W，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

Real-time UAV video data compression is one of the key technology of UAV. In this paper we propose a real-time

low-power video encoding system design

based on DM368 processor and embedded Linux operating system. Compared with traditional embedded video H264 encoding system design

we use DM368 inner video image co-processors to process the encoding task

which has the advantage of low-power consumption

low processing delay

and simple external circuit design. Furthermore

we utilize the real-time

stable and efficient embedded Linux operating system

capable of processing multi-task

such as video capturing

hard-core scheduling

serial communication

and data transmission. Experiment shows that the average power consumption of our system is only 1.5 W when dealing with the PAL video H264 coding task. Our design meet the requirement of UAV video compression task efficiently

with the advantage of low-power

low-cost

small-size

light-weight

and good real-time quality.

关键词

Keywords

references

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Related Institution

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