Design and performance evaluation of a solar powered remote controlled robot for precision seed planting

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Abstract The increasing demand for sustainable agricultural mechanization has accelerated the development of precision and energy-efficient planting systems. This study presents the design, optimization, and performance evaluation of a solar-powered remotely controlled robot for precision seed planting. The robotic platform integrates a photovoltaic energy system, an electric seed-metering mechanism, and an electronically controlled seed-depth adjustment unit to achieve accurate seed placement while minimizing energy consumption. The system was experimentally evaluated at four robot forward speeds (0.42–1.60 km h −1 ) and four target seed spacings (10–25 cm). Results showed high seed placement accuracy ranging from 98.08% to 98.80%, while the miss and multiple indices remained below 2% and 2.5%, respectively. Optimal metering performance was obtained at robot speeds of 0.82–1.20 km h −1 . The seed-depth adjustment mechanism exhibited a strong linear relationship between motor rotations and penetration depth (R 2 = 0.9996), ensuring precise depth control. Energy analysis indicated low power consumption (0.048–0.084 kWh) and a solar power supply ratio (95–167%). These findings demonstrate that integrating solar energy with wirelessly controlled agricultural robotics can improve planting precision while enhancing energy efficiency and environmental sustainability in precision farming systems.

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