中文摘要：

针对机械式精密播种机存在不同程度的漏播问题，研制了带有自动补种装置的精密播种系统。当光电传枣器监测到主排种器出现漏播现象时，中央处理器驱动步进电机推开副排种器输种管下端的挡种板，播下其中存储的一柱种子，挡种扳释放，同时控制步进电机驱动副排种器排出一粒种子到副排种器的输种管中，确保补钟及时准确台。试验表明：补种成功率〉90％，所补排种子与其他种子之间粒距合格指数〉60％，实现了准确有效的补种功能。

英文摘要：

Precision seeding system with automatic reseeding is designed considering various loss seeding problems of mechanical precision machines. When photo-sensors detect loss seeding in the master seeder unit, CCU drives stepper motor to push the baftle hoard keeping a seed in the seeding tube of the slave unit for reseeding. At the same time, another seed can be drained in the seeding tube to reseed timely and accurately. Tests show that success rate exceeds 90%, and the planting distance qualified index exceeds 60%, indicating that the system practices reseeding precisely and effectively.