A Review on State-of-the-Art Power Line Inspection Techniques

Yang, Lei; Fan, Junfeng; Liu, Yanhong; Li, En; Peng, Jinzhu; Liang, Zize

doi:10.1109/tim.2020.3031194

Cited by 222 publications

(92 citation statements)

References 133 publications

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“…In the past ten years, many scholars have carried out work on automatic detection methods for insulators and have achieved some results. According to the different feature extraction methods, the detection methods of power equipment can be divided into artificial design features and deep learning methods [13]. Table I summarizes some of the latest research results in the application of the above two types of methods in the field of power equipment automation in recent years.…”

Section: Related Workmentioning

confidence: 99%

Arbitrary-Oriented Detection of Insulators in Thermal Imagery via Rotation Region Network

Zheng

Liu

Sun

et al. 2022

IEEE Trans. Ind. Inf.

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The precise location of insulators in infrared images is of great significance for insulator condition monitoring and fault diagnosis. Due to the characteristics of insulators themselves and the use of handheld infrared cameras, insulators usually appear in infrared images with different aspect ratios and main axis orientations. Therefore, it is very important and necessary to make full use of the prior knowledge of the insulator itself to accurately locate it. However, most of the existing methods use axial horizontal detection boxes to detect insulators, which cannot take into account the characteristics of the insulator well. When there are large overlapping areas of two horizontal detection boxes, the non-maximum suppression algorithm may lead to missed detection of the object. In order to further improve the accuracy of the detection algorithm, this paper makes full use of the prior features carried by the insulator itself, and optimizes Faster R-CNN from five aspects: rectangular box representation, feature extraction, candidate box generation, anchor design, and feature alignment. An oriented detection model for infrared images of insulators is constructed. Comparative experiments with a variety of mainstream detection methods were carried out on the constructed infrared dataset. The results show that the proposed method is superior to other models in detection accuracy. When the intersection and union ratio is 0.5, the average precision reaches 95.08%. In addition, it can also effectively predict the shape and angle information of insulators in complex scenes, laying a beneficial foundation for subsequent diagnosis automation tasks.

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Section: Related Workmentioning

confidence: 99%

Arbitrary-Oriented Detection of Insulators in Thermal Imagery via Rotation Region Network

Zheng

Liu

Sun

et al. 2022

IEEE Trans. Ind. Inf.

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“…The inspection and maintenance of power line assets are of great importance to ensure that the infrastructure can deliver electricity to millions of inhabitants, while maximizing the operational life of the lines before replacement is required. The task of power line inspection is undertaken through various approaches [17]. The most common approach is to use a helicopter to transport a photographer within proximity of the line, taking high-resolution photos for further analysis.…”

Section: Power Lines Inspectionmentioning

confidence: 99%

Safe Local Aerial Manipulation for the Installation of Devices on Power Lines: AERIAL-CORE First Year Results and Designs

et al. 2021

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The power grid is an essential infrastructure in any country, comprising thousands of kilometers of power lines that require periodic inspection and maintenance, carried out nowadays by human operators in risky conditions. To increase safety and reduce time and cost with respect to conventional solutions involving manned helicopters and heavy vehicles, the AERIAL-CORE project proposes the development of aerial robots capable of performing aerial manipulation operations to assist human operators in power lines inspection and maintenance, allowing the installation of devices, such as bird flight diverters or electrical spacers, and the fast delivery and retrieval of tools. This manuscript describes the goals and functionalities to be developed for safe local aerial manipulation, presenting the preliminary designs and experimental results obtained in the first year of the project.

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“…Third, given the number of devices to be installed on a single section between two poles (what may vary between 10 and 50), and taking into account the limited payload capacity of the multi-rotor platforms, it is highly desirable to optimize the time performance of the operation [19] [20]. The literature review in power line inspection robots and techniques [21] [22] reveals a wide diversity of technological solutions intended to perform the inspection operation with the possibility to avoid the obstacles along the line, including insulators, jumpers, suspension towers, as well as the devices shown in Figure 1. Three categories of robots are identified according to the locomotion method: climbing, flying, and hybrid flying-climbing.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike the visual inspection operations conducted with manned helicopters [16] [17] and unmanned aerial platforms [14][15][21] [22][23] [24] by flying several meters away from the power lines, the realization of maintenance tasks like the installation of bird flight diverters using aerial manipulation robots as illustrated in Figure 1 involves the physical and electromagnetic interaction with the conductors in a closer range, raising two problems: the accurate positioning of the aerial robot with respect to the power line, and the electrical protection of the onboard electronic components. Regarding the first point, ref.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

et al. 2021

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The use of aerial manipulators for the inspection and maintenance of the power grid requires the safe interaction of the robot with high voltage power lines. In order to identify possible faults or malfunctions during the approaching or interaction phases, this paper presents experimental results in a real 15 kV power line, considering four different configurations for the manipulator: 1) aluminum tube attached to the landing gear, 2) robotic arm attached to the multi-rotor base, 3) shielded aerial manipulator, and 4) long reach configuration (insulated). The paper investigates the electromagnetic susceptibility of the autopilot and the electronic speed controllers to the electrostatic discharge (ESD) raised when the manipulator touches the line, causing the momentary failure of the rotors. A model of the electromagnetic effects associated to the interaction with the line is provided, comparing later the effectiveness of the two solutions for the aerial manipulator: shielding, and insulation.

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A Review on State-of-the-Art Power Line Inspection Techniques

Cited by 222 publications

References 133 publications

Arbitrary-Oriented Detection of Insulators in Thermal Imagery via Rotation Region Network

Arbitrary-Oriented Detection of Insulators in Thermal Imagery via Rotation Region Network

Safe Local Aerial Manipulation for the Installation of Devices on Power Lines: AERIAL-CORE First Year Results and Designs

Experimental Evaluation of Aerial Manipulation Robot in Contact With 15 kV Power Line: Shielded and Long Reach Configurations

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