ABSTRACT A new electronic seeding device was designed for large-sized seeds, such as soybean, corn, and peanuts, that supports an independent electronic-controlled seeding process. The developed seeding device consists of a programmable logic controller, pulse generator, stepper motor, and stepper motor driver. Based on the Box–Behnken Design model, the effects of different factors on the plant spacing control were analyzed, and the control parameters of the seeding system were optimized by correlation analysis. Through performance tests, the results of the research showed that the coefficient of variation of plant spacing was found to be affected by the interaction between shaft speed and belt speed, in which the belt speed was dominant. And the optimal control conditions by using Box–Behnken Design model are as follows: the seed shaft speed was 0.60 r/s, the soybean hundred-grain weight was 22 g, and the belt speed was 1.5 m/s. The results of the experiments showed that the socket-roller seeding device successfully completed the seeding test, and its performance index was in accord with the applicable standards for single grain precision seeding equipment.

中文翻译：

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基于响应面法的电子播种系统设计与试验

摘要 针对大豆、玉米、花生等大粒种子设计了一种新型电子播种装置，支持独立的电子控制播种过程。开发的播种装置由可编程逻辑控制器、脉冲发生器、步进电机和步进电机驱动器组成。基于Box-Behnken Design模型，分析了不同因素对株距控制的影响，并通过相关分析优化了播种系统的控制参数。通过性能试验，研究结果表明，株距变异系数受轴速和带速相互作用的影响，其中带速占主导地位。使用 Box-Behnken Design 模型的最优控制条件如下：种轴速度0.60r/s，大豆百粒重22g，带速1.5m/s。试验结果表明，承插滚轮播种装置顺利完成播种试验，其性能指标符合单粒精密播种设备的适用标准。