Research and Analysis on the Influence of Different Speed Measurement Methods on the Monitoring Accuracy of Seed Spacing

Chunji Xie, Dongxing Zhang, Li Yang (), Tao Cui, Xiantao He, Zhaohui Du and Tianpu Xiao
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Chunji Xie: College of Engineering, China Agricultural University, Beijing 100083, China
Dongxing Zhang: College of Engineering, China Agricultural University, Beijing 100083, China
Li Yang: College of Engineering, China Agricultural University, Beijing 100083, China
Tao Cui: College of Engineering, China Agricultural University, Beijing 100083, China
Xiantao He: College of Engineering, China Agricultural University, Beijing 100083, China
Zhaohui Du: College of Engineering, China Agricultural University, Beijing 100083, China
Tianpu Xiao: College of Engineering, China Agricultural University, Beijing 100083, China

Agriculture, 2023, vol. 13, issue 1, 1-21

Abstract: The accuracy and real-time performance of the speed measurement method were important factors influencing the accuracy of the seeding spacing monitoring. In this study, three different speed measurement methods (including GNSS (Global Navigation Satellite System) receiver speed measurement, radar speed measurement, and encoder measurement rotation speed) were used to compare and analyze the monitoring results of seeding spacing. The same monitoring system was used to calculate the seeding spacing under three different speed measurement methods. The encoder directly measured the rotation speed of the seeding disc instead of the traditional method of measuring the rotation speed of the driving wheel. The monitoring results of uniform-speed and variable-speed seeding field tests showed that the three speed measurement methods have extremely high correlations, with a correlation coefficient R > 0.95. There was small difference among the three speed measurement methods, and they all met the needs of field seeding operations. After comprehensively considering the use cost and installation complexity, it was recommended to use GNSS receiver speed measurement to monitor the speed of the seeding operation and the real-time seeding spacing.

Keywords: speed; GNSS receiver; radar; encoder; monitoring system (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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