Evaluating Path Planning Strategies for Efficient Nitrate Sampling in Crop Rows
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915190732226560 |
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| author | Liu, Ruiji Breitfeld, Abigail Vijayarangan, Srinivasan Kantor, George Yandun, Francisco |
| author_facet | Liu, Ruiji Breitfeld, Abigail Vijayarangan, Srinivasan Kantor, George Yandun, Francisco |
| contents | This paper presents a pipeline that combines high-resolution orthomosaic maps generated from UAS imagery with GPS-based global navigation to guide a skid-steered ground robot. We evaluated three path planning strategies: A* Graph search, Deep Q-learning (DQN) model, and Heuristic search, benchmarking them on planning time and success rate in realistic simulation environments. Experimental results reveal that the Heuristic search achieves the fastest planning times (0.28 ms) and a 100% success rate, while the A* approach delivers near-optimal performance, and the DQN model, despite its adaptability, incurs longer planning delays and occasional suboptimal routing. These results highlight the advantages of deterministic rule-based methods in geometrically constrained crop-row environments and lay the groundwork for future hybrid strategies in precision agriculture. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_07855 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Evaluating Path Planning Strategies for Efficient Nitrate Sampling in Crop Rows Liu, Ruiji Breitfeld, Abigail Vijayarangan, Srinivasan Kantor, George Yandun, Francisco Robotics This paper presents a pipeline that combines high-resolution orthomosaic maps generated from UAS imagery with GPS-based global navigation to guide a skid-steered ground robot. We evaluated three path planning strategies: A* Graph search, Deep Q-learning (DQN) model, and Heuristic search, benchmarking them on planning time and success rate in realistic simulation environments. Experimental results reveal that the Heuristic search achieves the fastest planning times (0.28 ms) and a 100% success rate, while the A* approach delivers near-optimal performance, and the DQN model, despite its adaptability, incurs longer planning delays and occasional suboptimal routing. These results highlight the advantages of deterministic rule-based methods in geometrically constrained crop-row environments and lay the groundwork for future hybrid strategies in precision agriculture. |
| title | Evaluating Path Planning Strategies for Efficient Nitrate Sampling in Crop Rows |
| topic | Robotics |
| url | https://arxiv.org/abs/2503.07855 |