Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Development of a Rice Weighing System for Head-Feed Combine

자탈형 콤바인용 벼 무게 측정시스템 개발

  • Lee, C.K. (National Institute of Agricultural Engineering, RDA) ;
  • Choi, Y. (National Institute of Agricultural Engineering, RDA) ;
  • Jun, H.J. (National Institute of Agricultural Engineering, RDA) ;
  • Kim, H.J. (National Institute of Agricultural Engineering, RDA) ;
  • Lee, S.B. (National Institute of Agricultural Engineering, RDA) ;
  • Ryu, C.S. (Division of Environmental Science and Technology, Kyoto University)
  • Published : 2007.10.25
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Abstract

Yield mapping is necessary for precision farming. An on-site rice weighing system for a head-feed combine was developed to measure the total weight of rice grain harvested while the combine was operated. A load cell system was used to monitor rice weights accumulated into the combine grain tank using a load cell. This method gave cumulative grain weight readings as a function of time. The system consisted of a load cell, two supporting brackets, and a computer-based data acquisition system. The weights measured with the system from two fields were compared with those obtained with a commercially available electronic balance. The response of the load cell to varying grain weights was linearly modeled, showing a coefficient of determination of 0.998 and a standard error of ${\pm}4.09kg$.

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References

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