Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Lossy Lines and Overvoltages

Lossy Lines and Overvoltages

Transmission-line series resistance and shunt conductance cause three primary effects: attenuation, distortion, and power losses.
Attenuation
When constant series resistance and shunt conductance are present, voltage and current equations are modified. The propagation constant indicates that voltage and current waves consist of both forward and backward traveling components. These waves attenuate as they propagate, with the attenuation factor related to the resistance and conductance. In a...

Transmission-Line Differential Equations

Transmission-Line Differential Equations

Transmission lines are essential components of electrical power systems. They are characterized by the distributed nature of resistance (R), inductance (L), and capacitance (C) per unit length. To analyze these lines, differential equations are employed to model the variations in voltage and current along the line.
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured from the...

Bewley Lattice Diagram

Bewley Lattice Diagram

The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.

Transmission Line Design Considerations

Transmission Line Design Considerations

Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...

Lossless Lines

Lossless Lines

In electrical engineering, a lossless transmission line is characterized by a purely imaginary propagation constant and a resistive characteristic impedance. The ABCD parameters, which describe the relationship between the input and output voltages and currents, indicate an equivalent π circuit with an imaginary series impedance and a shunt admittance. This results in a transmission line that, when the product of the phase constant (beta) and the length of the line is less than pi, exhibits...

Boundary Conditions: Lossless Lines

Boundary Conditions: Lossless Lines

Consider a single-phase, two-wire, lossless transmission line terminated by an impedance at the receiving end and a source with Thevenin voltage and impedance at the sending end. The line, with length, has a surge impedance and wave velocity determined by the line's inductance and capacitance.
At the receiving end, the boundary condition states that the voltage equals the product of the receiving-end impedance and current. This relationship is expressed as a function of the incident and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Redundant requirement for a pair of PROTEIN ARGININE METHYLTRANSFERASE4 homologs for the proper regulation of Arabidopsis flowering time.

Plant physiology·2008

Same author

Trans-natural antisense transcripts including noncoding RNAs in 10 species: implications for expression regulation.

Nucleic acids research·2008

Same author

In vivo interstitial migration of primitive macrophages mediated by JNK-matrix metalloproteinase 13 signaling in response to acute injury.

Journal of immunology (Baltimore, Md. : 1950)·2008

Same author

Purification and N-terminal sequence of a serine proteinase-like protein (BMK-CBP) from the venom of the Chinese scorpion (Buthus martensii Karsch).

Toxicon : official journal of the International Society on Toxinology·2008

Same author

Functional characterization of Lmo2-Cre transgenic zebrafish.

Developmental dynamics : an official publication of the American Association of Anatomists·2008

Same author

Up-regulation of lysozyme gene expression during metamorphosis and immune challenge of the cotton bollworm, Helicoverpa armigera.

Archives of insect biochemistry and physiology·2008

Search research articles

Related Experiment Video

Updated: Jun 13, 2026

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

Published on: June 26, 2015

TL-DETR: Efficient transmission line defect detection for edge deployment.

Yong Zhang¹, Runming Zhao¹

¹School of Computer and Artificial Intelligence, Beijing Technology and Business University, Beijing, China.

|June 11, 2026

Summary

This study introduces TL-DETR, an efficient AI model for detecting transmission line defects on edge devices. It achieves high accuracy in identifying small defects, improving power system maintenance.

Related Experiment Videos

Last Updated: Jun 13, 2026

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

Published on: June 26, 2015

Area of Science:

Electrical Engineering
Computer Vision
Artificial Intelligence

Background:

Visual inspection is crucial for power system maintenance.
Edge deployment of high-performance detection models faces challenges like complex backgrounds, scale variations, and computational costs.

Purpose of the Study:

To develop an accurate and efficient transmission line defect detection framework for edge devices.
To address challenges in detecting defects with varying scales and complex backgrounds.

Main Methods:

Introduced TL-DETR, a specialized detection framework with ResNet-50-TL backbone and multi-scale feature enhancement.
Integrated Attention-based Intra-scale Bi-level Routing and channel shuffle for focused defect detection and reduced parameters.
Employed a multi-scale attention mechanism for pixel-level recalibration and cross-spatial learning.

Main Results:

TL-DETR achieved 91.4% precision and 86.0% mAP50 on the CableInspect-ADs dataset.
Demonstrated improvements of 3.2% in precision and 2.9% in mAP50 over the baseline RT-DETR.
Exhibited excellent generalization for detecting insulators, vibration dampers, and bolts.

Conclusions:

TL-DETR effectively balances accuracy and computational efficiency for edge deployment in power system maintenance.
The model shows theoretical viability and practical applicability for precise perception of minute defects.