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배추 자동 수확을 위한 2 축 유압 시스템의 백스테핑 제어: 예비결과
박용현,손형일 제어로봇시스템학회 2021 제어로봇시스템학회 국내학술대회 논문집 Vol.2021 No.6
The paper proposes a backstepping control of 2-DOF hydraulic system for automatic Korean cabbage harvesting. First, we designed a mechanism that allows only cutting devices in Korean cabbage harvesters to control their attitude separately to proceed with precise harvesting. And the 2-DOF hydraulic system was designed for the operation of two hydraulic cylinders that control slide( ) length and pitch( ) rotation of the designed Mechanisms. The system was modeled considering the movement of the cutting device. It is then control by applied to backstepping control, a nonlinear control technique. We also conducted a comparison experiment with PID control to verify the performance of the designed controller.
Developing a Web-based System for Computing Pre-Harvest Residue Limits (PHRLs)
Chang, Han Sub,Bae, Hey Ree,Son, Young Bae,Song, In Ho,Lee, Cheol Ho,Choi, Nam Geun,Cho, Kyoung Kyu,Lee, Young Gu Korean Society of Food and Agricultural Informatio 2011 Agribusiness and Information Management Vol.3 No.1
This study describes the development of a web-based system that collects all data generated in the research conducted to set pre-harvest residue limits (PHRLs) for agricultural product safety control. These data, including concentrations of pesticide residues, limit of detection, limit of quantitation, recoveries, weather charts, and growth rates, are incorporated into a database, a regression analysis of the data is performed using statistical techniques, and the PHRL for an agricultural product is automatically computed. The development and establishment of this system increased the efficiency and improved the reliability of the research in this area by standardizing the data and maintaining its accuracy without temporal or spatial limitations. The system permits automatic computation of the PHRL and a quick review of the goodness of fit of the regression model. By building and analyzing a database, it also allows data accumulated over the last 10 years to be utilized.
Developing a Web-based System for Computing Pre-Harvest Residue Limits (PHRLs)
Han Sub Chang,Hey Ree Bae,Young Bae Son,In Ho Song,Cheol Ho Lee,Nam Geun Choi,Kyoung Kyu Cho,Young Gu Lee 한국농식품정보과학회 2011 Agribusiness and Information Management Vol.3 No.1
This study describes the development of a web-based system that collects all data generated in the research conducted to set pre-harvest residue limits (PHRLs) for agricultural product safety control. These data, including concentrations of pesticide residues, limit of detection, limit of quantitation, recoveries, weather charts, and growth rates, are incorporated into a database, a regression analysis of the data is performed using statistical techniques, and the PHRL for an agricultural product is automatically computed. The development and establishment of this system increased the efficiency and improved the reliability of the research in this area by standardizing the data and maintaining its accuracy without temporal or spatial limitations. The system permits automatic computation of the PHRL and a quick review of the goodness of fit of the regression model. By building and analyzing a database, it also allows data accumulated over the last 10 years to be utilized.