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基于A(yíng)RM和DSP的農(nóng)田信息實(shí)時(shí)采集終端設(shè)計(jì)
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Design and Implementation of Terminal for Agricultural Data Real-time Acquisition Based on ARM and DSP
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    摘要:

    提出了一種基于A(yíng)RM和DSP的農(nóng)田信息實(shí)時(shí)采集終端設(shè)計(jì)方案,主處理器選用S3C2440,,協(xié)處理器選用TMS320C6713,,在設(shè)計(jì)的農(nóng)田信息采集電路基礎(chǔ)上設(shè)計(jì)了HPI 驅(qū)動(dòng)程序,。利用Multisim對(duì)模擬信號(hào)采集電路進(jìn)行放大倍數(shù)可調(diào)的仿真驗(yàn)證,。并將采集到的農(nóng)田經(jīng)緯度,、圖像,、土壤溫度,、土壤含水率,、光照強(qiáng)度等信息進(jìn)行編碼,。試驗(yàn)表明,該系統(tǒng)能夠?qū)崟r(shí)可靠地采集和上傳多個(gè)傳感器信息,。延時(shí)試驗(yàn)表明,,在GPRS網(wǎng)絡(luò)延時(shí)比較嚴(yán)重的時(shí)間段容易出現(xiàn)圖像顯示不完全的現(xiàn)象。

    Abstract:

    Based on ARM and DSP, an real-time agricultural information sampling terminal was designed. S3C2440 and TMS320C6713 was used as the main processor and the assistant processor, repectively. The principle of HPI interface was expounded. The HPI device driver and the collection of electric circuits for the farmland information were designed. By using Multisim, the emulation verification which could be amplified were made to the electric circuits. The collected latitude and the longitude of the farmland, image information, soil temperature, moisture, strength of illumination and other information were encoded. The experiment on the farm showed that various sensor information could be collected and uploaded reliably by this system. The time-lapse experiment showed that images were usually demonstrated incompletely when GPRS net delayed too much.

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沈明霞,叢靜華,張祥甫,孫玉文,熊迎軍,周良.基于A(yíng)RM和DSP的農(nóng)田信息實(shí)時(shí)采集終端設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(6):147-152.Design and Implementation of Terminal for Agricultural Data Real-time Acquisition Based on ARM and DSP[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(6):147-152.

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