智慧农场边缘智能精播监测与控制技术研究进展

    Research progress on edge-intelligent precision sowing monitoring and control technologies for smart farms

    • 摘要: 在规模化经营持续推进、农业劳动力结构变化以及智慧农场建设不断深化的背景下,播种作业已由传统机械执行环节转变为关系作物群体建植质量、田间作业效率和农场数字化管理能力的关键基础环节。面向规模化智慧农场,智能精播不仅要求实现高质量排种,还要求在复杂田间工况下具备实时感知、动态调控、远程运维和数据留痕能力。本文围绕智能精播监测与控制技术,系统梳理了智能精播系统的基本构成、关键监测对象与评价指标,重点综述了排种监测、粒距与着床位置检测、播深监测、机器视觉与多传感融合、控制与补偿以及云边端协同等方面的研究进展。分析表明,光电、光纤和红外等方法工程实现较成熟,但在高速、振动、粉尘和秸秆覆盖条件下稳定性仍受限制;电容、压电、近红外、激光及机器视觉等方法虽在检测精度和信息维度上具有优势,但在系统复杂度、端侧部署和长期鲁棒性方面仍面临挑战。当前研究还存在单一传感器抗干扰能力不足、监测与控制链路耦合不紧、农机装备与农场平台数据接口不统一,以及真正实现“感知−诊断−补偿−评价”全过程闭环的系统相对较少等问题。未来,智能精播技术将朝着多源异构信息融合、低时延闭环控制、数据标准化共享及农场级质量闭环评价方向发展。

       

      Abstract: With the continuous development of large-scale farming, changes in the agricultural labor structure, and the rapid advancement of smart farming, seeding operations have evolved from a conventional mechanical execution process into a key foundational link affecting crop establishment quality, field operational efficiency, and farm-level digital management capability. For large-scale smart farms, intelligent precision seeding requires not only high-quality seed metering, but also real-time sensing, dynamic regulation, remote operation and maintenance, and data traceability under complex field conditions. Focusing on monitoring and control technologies for intelligent precision seeding, this paper systematically reviews the basic architecture of intelligent precision seeding systems, key monitoring objects, and evaluation indices, with emphasis on recent advances in seed-metering monitoring, seed-spacing and seed-placement detection, seeding-depth monitoring, machine vision and multi-sensor fusion, control and compensation, as well as cloud-edge-end collaboration. The analysis shows that photoelectric, optical fiber, and infrared-based methods are relatively mature in engineering applications, but their stability is still limited under conditions of high speed, vibration, dust, and straw mulching. Capacitive, piezoelectric, near-infrared, laser-based, and machine vision methods exhibit advantages in detection accuracy and information richness, yet still face challenges in system complexity, edge-side deployment, and long-term robustness. Current studies also suffer from insufficient anti-interference capability of single sensors, weak coupling between monitoring and control links, inconsistent data interfaces between seeding equipment and smart farm platforms, and a lack of full closed-loop systems integrating sensing, diagnosis, compensation, and evaluation. In the future, intelligent precision seeding technology will develop toward multi-source heterogeneous information fusion, low-latency closed-loop control, standardized data sharing, and farm-level closed-loop quality evaluation.

       

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