本文關(guān)鍵詞： 無人機(jī) DM 視頻壓縮 H編碼　出處：《液晶與顯示》2014年06期 　論文類型：期刊論文

【摘要】：無人機(jī)視頻數(shù)據(jù)的實(shí)時(shí)壓縮處理是無人機(jī)的關(guān)鍵技術(shù)之一。本文以DM368為核心處理器,以嵌入式Linux為板級(jí)操作系統(tǒng),設(shè)計(jì)出一套可供無人機(jī)使用的低功耗視頻實(shí)時(shí)壓縮系統(tǒng)。與傳統(tǒng)的嵌入式視頻H264軟件編碼壓縮系統(tǒng)相比,本系統(tǒng)依賴DM368內(nèi)嵌的視頻協(xié)處理硬核處理H264編碼,具有功耗低,處理延遲小,外部電路簡(jiǎn)單等諸多優(yōu)勢(shì)。同時(shí)系統(tǒng)以嵌入式Linux為板級(jí)操作系統(tǒng),實(shí)時(shí)性強(qiáng),可穩(wěn)定高效的管理視頻采集、硬核調(diào)度、串口通訊、數(shù)據(jù)輸出等諸多任務(wù)。試驗(yàn)結(jié)果表明,本系統(tǒng)在處理PAL制式為視頻源的H264編碼任務(wù)時(shí),平均功耗僅為1.5W,具有功耗低、成本低、體積小、重量輕、實(shí)時(shí)性強(qiáng)等諸多優(yōu)勢(shì),能夠滿足無人機(jī)視頻壓縮的應(yīng)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.
【作者單位】： 中國(guó)科學(xué)院長(zhǎng)春光學(xué)精密機(jī)械與物理研究所;中國(guó)科學(xué)院大學(xué);
【基金】：吉林省2013年度博士后科研項(xiàng)目(No.RB20131)
【分類號(hào)】：V279;TN919.81
【正文快照】： 1引言無人機(jī)是一種近年來倍受各國(guó)青睞的高性能信息化裝備,具有起降簡(jiǎn)單,操作靈活,成本低廉,不懼傷亡等多種優(yōu)勢(shì)。無人機(jī)的出現(xiàn)極大豐富和改變了戰(zhàn)爭(zhēng)的模式,在航空偵察、情報(bào)支援、電子干擾等諸多領(lǐng)域發(fā)揮著不可替代的作用[1-2]。無人機(jī)在實(shí)戰(zhàn)中體現(xiàn)出的最大優(yōu)勢(shì)在于情報(bào)獲取，

本文編號(hào)：1478354