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磁吸式精密播種器滾筒變速控制系統(tǒng)設(shè)
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Speed Control System for Precision Magnetic Drum-seeder Based on DSP
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    摘要:

    設(shè)計(jì)了一種由F2812DSP芯片,、PS2鍵盤和光電傳感器組成的基于數(shù)字信號(hào)處理（DSP）的磁吸式播種器滾筒變速控制系統(tǒng),，在充種區(qū)降低滾筒轉(zhuǎn)速增加充種時(shí)間,，在攜種和清種區(qū)增加滾筒轉(zhuǎn)速，提高播種器工作效率,。以油菜包衣種子為研究對(duì)象的試驗(yàn)表明,，該控制系統(tǒng)各個(gè)模塊協(xié)調(diào)工作良好，系統(tǒng)運(yùn)行穩(wěn)定,，滾筒在充種時(shí)轉(zhuǎn)速為16 r/min,，攜種、清種時(shí)轉(zhuǎn)速為20 r/min,，工作效率較16 r/min勻速轉(zhuǎn)動(dòng)提高了16%,，單播率達(dá)到

    Abstract:

    95%。The ratio of the single seedings, which is effected by the coefficient of the absorbing seeds directly, is an important parameter. The purpose of this paper is to design the variable control system for precision magnetic drum-seeder. In order to enhance the sowing efficiency, the roller is made speed-down when it is absorbing seeds, whereas it is made speed-up when it has absorbed or is sowing seeds. The variable control system embodies a F2812DSP controller, a PS2 keyboard and a photoelectricity sensor. Experiment shows that the efficiency has been raised by 16% and the ratio of single seedings is over 95%, when the speed of absorbing seeds is up to 16 r/min and the speed of absorbed and sowing seeds is up to 20 r/min. 

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胡建平,劉琦,王奇瑞,閆軍朝.磁吸式精密播種器滾筒變速控制系統(tǒng)設(shè)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(Z1):45-47. Speed Control System for Precision Magnetic Drum-seeder Based on DSP[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(Z1):45-47.

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