期刊
APPLIED SCIENCES-BASEL
卷 11, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/app112412093
关键词
deep learning (DL); unmanned aerial vehicle (UAV); photovoltaic (PV) plants; semantic segmentation; coverage path planning (CPP)
类别
资金
- Colombia Scientific Program within the framework of the so-called Ecosistema Cientifico [FP44842-218-2018]
Solar energy is strategically important for global economic development, leading to an increasing number of solar photovoltaic plants worldwide. Inspection of these plants is now being done with unmanned aerial vehicles (UAV) using coverage path planning (CPP) methods to automatically develop flight paths. Through experiments, it was found that the most effective methods vary depending on the CPP width.
Solar energy is one of the most strategic energy sources for the world's economic development. This has caused the number of solar photovoltaic plants to increase around the world; consequently, they are installed in places where their access and manual inspection are arduous and risky tasks. Recently, the inspection of photovoltaic plants has been conducted with the use of unmanned aerial vehicles (UAV). Although the inspection with UAVs can be completed with a drone operator, where the UAV flight path is purely manual or utilizes a previously generated flight path through a ground control station (GCS). However, the path generated in the GCS has many restrictions that the operator must supply. Due to these restrictions, we present a novel way to develop a flight path automatically with coverage path planning (CPP) methods. Using a DL server to segment the region of interest (RoI) within each of the predefined PV plant images, three CPP methods were also considered and their performances were assessed with metrics. The UAV energy consumption performance in each of the CPP methods was assessed using two different UAVs and standard metrics. Six experiments were performed by varying the CPP width, and the consumption metrics were recorded in each experiment. According to the results, the most effective and efficient methods are the exact cellular decomposition boustrophedon and grid-based wavefront coverage, depending on the CPP width and the area of the PV plant. Finally, a relationship was established between the size of the photovoltaic plant area and the best UAV to perform the inspection with the appropriate CPP width. This could be an important result for low-cost inspection with UAVs, without high-resolution cameras on the UAV board, and in small plants.
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