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小型農(nóng)產(chǎn)品分選機(jī)設(shè)計(jì)與試驗(yàn)
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廣東省科技計(jì)劃資助項(xiàng)目(2013B020313003)、“十二五”國(guó)家科技支撐計(jì)劃資助項(xiàng)目(2011BAD20B08)和國(guó)家星火計(jì)劃資助項(xiàng)目(2011GA780026)


Design and Test of Small-scale Sorting Machine for Agricultural Products
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    摘要:

    針對(duì)家庭農(nóng)場(chǎng)及小規(guī)模營(yíng)銷的需要,設(shè)計(jì)了基于機(jī)器視覺(jué)的小型農(nóng)產(chǎn)品分選機(jī)。農(nóng)產(chǎn)品在平膠帶上形成多通道陣列式輸送,以DSP作為機(jī)器視覺(jué)單元的核心,采集一幀圖像可分析多個(gè)通道,并根據(jù)農(nóng)產(chǎn)品的形狀、顏色等圖像特征進(jìn)行分選。在水平輸送速度為9.2cm/s、農(nóng)產(chǎn)品輸送間隔為16cm、4通道并行輸送的條件下,選用核桃、紅棗及栗子3種農(nóng)產(chǎn)品進(jìn)行了分選機(jī)性能測(cè)試。試驗(yàn)表明,機(jī)器能夠可靠工作;核桃、紅棗和栗子的分選準(zhǔn)確性分別為91.66%、94.79%和97.39%;分選速度達(dá)8800個(gè)/h。因此采用DSP芯片作為小型分選機(jī)的機(jī)器視覺(jué)核心是可行的,可以為農(nóng)產(chǎn)品分選機(jī)的小型化、低成本提供技術(shù)支持。

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    Quality grading is usually performed to agricultural products after harvesting by sorting machines with existing problems including large size, high price, etc. To meet the demands of family farming and small scale marketing, we designed a small-scale agricultural product sorting machine based on machine vision. Agricultural products were conveyed to the multichannel conveyer belt and sorted with features including shape, color and etc. by the DSPcored machine. Quality of products in separated channels can be analyzed with single frame image. Performance tests were conducted with walnuts, red dates and chestnuts selected as testing objects to the sorting machine. The test parameters including horizontal transmission speed, product transmission interval, parallel transmission channel amount were set to 9.2cm/s, 16cm and 4, respectively. The test results indicated that the sorting machine performed reliably with selection accuracy rate of 91.66%, 94.79% and 97.39% in walnuts, red dates and chestnuts respectively, with culling speed of approximately 8800 products per hour. Hence feasibility was proved that DSP could be performed as the machine vision core component of smallscale intelligent sorting machine, which provided technical supports of miniaturization and low cost for agricultural product sorting machines.

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鄧?yán)^忠,李 山,張建瓴,陳文凱,蔣恩臣.小型農(nóng)產(chǎn)品分選機(jī)設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2015,46(9):245-250. Deng Jizhong, Li Shan, Zhang Jianling, Chen Wenkai, Jiang Enchen. Design and Test of Small-scale Sorting Machine for Agricultural Products[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(9):245-250.

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  • 收稿日期:2015-02-13
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  • 在線發(fā)布日期: 2015-09-10
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