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紅棗自動快速無損檢測分級機研究
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“十二五”國家科技支撐計劃資助項目(2012BAF07B06)


Study of Rapid and Automatic Non-destructive Testing Grader for Red Jujubes
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    摘要:

    設計了基于機器視覺技術的紅棗自動快速無損檢測分級機,，可依據(jù)棗果外部綜合指標進行判別分級,。整機由單體化定向排布輸送系統(tǒng)、多表面圖像采集與處理系統(tǒng),、分級執(zhí)行機構,、傳動及控制部分組成,。根據(jù)整機工作原理,，采用輥輪輸送鏈板與間歇式凸輪撥棗機構相結合的方式,，實現(xiàn)棗果快速單體化排布輸送,，利用工業(yè)相機與STM32嵌入式系統(tǒng)配合正面及背面光源進行棗果多表面圖像采集,，采用氣動式分級執(zhí)行機構完成棗果分級。理論計算與試驗表明：輸送帶最佳傾角為28°,，當運行速度為160mm/s時,，輸送帶駐棗率為95%，分級速度達10個/s,，分級準確率92%,，最大產(chǎn)能550kg/h，可較好滿足紅棗自動化快速檢測分級生產(chǎn)要求,。

    Abstract:

    An automated rapid non-destructive testing grader based on machine vision technology for jujubes was designed, which can discriminate and grade jujubes according to their external indicators. The equipment is mainly composed of five parts：monomeric orientation arrangement conveying system, multi-surface image acquisition and processing system, grading actuators, transmission mechanism and control system. Rapid monomeric arrangement delivery of jujubes was achieved by roller conveyor and cam intermittent motion mechanism, multi surface images of jujubes were obtained by industrial camera, front and back light and STM32 system. In addition, pneumatic grading actuator was designed to grade jujubes. The performance parameters were determined by calculating and testing,，which were conveyor angle 28°, running speed 160mm/s, monomer orientation arrangement rate 95%, grading speed 10 jujubes/s,accuracy 92%, the maximum production capacity 550kg/h. The requirement of automated rapid detection and grading can be reached well by the grader.

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王松磊,劉民法,何建國,賀曉光,吳龍國.紅棗自動快速無損檢測分級機研究[J].農(nóng)業(yè)機械學報,2014,45(9):79-83. Wang Songlei, Liu Minfa, He Jianguo, He Xiaoguang, Wu Longguo. Study of Rapid and Automatic Non-destructive Testing Grader for Red Jujubes[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(9):79-83.

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  • 收稿日期:2014-04-22
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  • 在線發(fā)布日期: 2014-09-10
  • 出版日期: 2014-09-10
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