Key Technologies of Intelligent Legume Harvesting Equipment Based on BeiDou Navigation and 5G+MEC

CHENG Zhili; GONG Ting; LIANG Mingxu; WANG Yuanyang

doi:10.19554/j.cnki.1001-3563.2025.16.050

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (16) : 552-559. DOI: 10.19554/j.cnki.1001-3563.2025.16.050

Design Intelligent Innovation·Diverse Exploration and Innovation of Industrial Design in the Digital Intelligence Era

Key Technologies of Intelligent Legume Harvesting Equipment Based on BeiDou Navigation and 5G+MEC

CHENG Zhili^1,2, GONG Ting^2,*, LIANG Mingxu³, WANG Yuanyang⁴

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Abstract

As a major agricultural and populous nation, China relies heavily on soybeans—the world's largest oil seed crop and primary source of plant-based oil—as a crucial cash crop and strategic resource. The level of mechanized soybean harvesting directly impacts China's national food security. This study focuses on breaking through the technological bottlenecks of traditional soybean harvesters, securing China's food supply, and achieving breakthroughs in the key technologies and widespread application of high-quality, wide-adaptability, and intelligent harvesting. To address the issues of high loss rates and low intelligence in legume mechanized harvesting in China, an intelligent operating system for unmanned legume harvesting equipment was developed by integrating the BeiDou Navigation Satellite System (BDS) with 5G+MEC (Multi-access Edge Computing) technology. By designing a BDS-based A-B line path planning algorithm and leveraging a 5G+MEC multi-source data dynamic transmission architecture, precise centimeter-level path planning was achieved, enabling precise navigation and real-time cooperative operation in complex field environments. An intelligent threshing device control system based on machine vision was innovatively designed, incorporating multi-sensor fusion control technology, and significantly reducing mechanical damage during harvesting. Experimental results demonstrated that the system achieved a comprehensive breakage rate of ≤5%, total loss rate of ≤5%, and impurity content of ≤3%, with an operating efficiency of 8.2 mu/h (1 mu = 666.67 m²). In conclusion, the intelligent transformation of mechanized legume harvesting provides technological support for technology-driven agricultural development, propelling future agricultural equipment toward unmanned and high-efficiency advancement.

Key words

BeiDou Navigation / 5G+MEC / intelligent legume harvesting equipment / unmanned / multi-source data fusion / smart agriculture

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CHENG Zhili, GONG Ting, LIANG Mingxu, WANG Yuanyang. Key Technologies of Intelligent Legume Harvesting Equipment Based on BeiDou Navigation and 5G+MEC[J]. Packaging Engineering. 2025, 46(16): 552-559 https://doi.org/10.19554/j.cnki.1001-3563.2025.16.050

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