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基于ARM和DSP的嵌入式收獲前籽棉分級(jí)系統(tǒng)
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國(guó)家自然科學(xué)基金資助項(xiàng)目（31071565）;江蘇省農(nóng)機(jī)基金資助項(xiàng)目（GXZ10007）


Design of Embedded System for Grading of Pre-harvest Cotton Based on ARM and DSP
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    摘要:

    提出了一種嵌入式收獲前籽棉分級(jí)系統(tǒng)的總體設(shè)計(jì)方案。嵌入式終端以ARM（TMS320DM365）為主處理器,，以DSP（TMS320DM6437）為從處理器。在ARM上構(gòu)建Linux系統(tǒng)環(huán)境,，并行執(zhí)行視頻采集和人機(jī)交互任務(wù)：攝像頭采集模擬視頻流送解碼芯片（TVP5146）解碼；同時(shí),，在用戶界面上實(shí)時(shí)顯示數(shù)字視頻流,，并通過(guò)SPI向DSP發(fā)送視頻處理請(qǐng)求。DSP在同步采集視頻流的過(guò)程中收到請(qǐng)求信號(hào)后,，對(duì)當(dāng)前幀進(jìn)行圖像分割,、特征提取和判別，并將處理結(jié)果返回給ARM,。田間試驗(yàn)表明,，系統(tǒng)能夠以90.48%的正確識(shí)別率快速地識(shí)別籽棉品級(jí)。

    Abstract:

    An embedded system for grading of pre-harvest cotton was designed on overall. ARM (TMS320DM365) was regarded as main processor of the embedded terminal, and DSP (TMS320DM6437) was regarded as slave processor. Linux system environment was built on ARM, and video capture and man-machine interaction were executed in parallel. Simulation video flows were captured by camera and decoded in decoder chip (TVP5146). Digital video flows were displayed real-timely on user interaction interface and the video process request was sent to DSP by SPI. After DSP received the request signal during video flows capture synchronously, the current frame was segmented and discriminated by features extraction, and the result was returned to ARM. Field experiment showed that the system could recognize the grades of raw cottons quickly with an accuracy of 90.48%.

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王玲,鄭奎,王超峰.基于ARM和DSP的嵌入式收獲前籽棉分級(jí)系統(tǒng)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(Z1):156-161. Wang Ling, Zheng Kui, Wang Chaofeng. Design of Embedded System for Grading of Pre-harvest Cotton Based on ARM and DSP[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(Z1):156-161.

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