On-line Measurement Method and Technical Scheme of Transmission Line Crossing Point Based on Machine Vision

Abstract With the increasing demand for high voltage and UHV transmission, higher and higher requirements are put forward for transmission line monitoring and fault diagnosis. The traditional line measurement method has many shortcomings, which cannot ensure the measurement accuracy, measurement efficiency and high cost. Based on this, this paper first studies the principle of machine vision on-line measurement, then analyses the on-line measurement process of transmission line crossing point based on machine vision, and finally gives the error source and amelioration measures of transmission line crossing point on-line measurement.

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Research on the on-line dimensional accuracy measurement method of conical spun workpieces based on machine vision technology

Measurement ◽

10.1016/j.measurement.2019.106881 ◽

2019 ◽

Vol 148 ◽

pp. 106881 ◽

Cited By ~ 3

Author(s):

Gangfeng Xiao ◽

Yongting Li ◽

Qinxiang Xia ◽

Xiuquan Cheng ◽

Weiping Chen

Keyword(s):

Machine Vision ◽

Measurement Method ◽

Dimensional Accuracy ◽

Accuracy Measurement ◽

On Line

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Algorithm Research on Tower Grounding Resistance On-Line Measurement

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.239-240.372 ◽

2012 ◽

Vol 239-240 ◽

pp. 372-375

Author(s):

Tao Wang ◽

Bing Li ◽

Hong Xing Yang

Keyword(s):

Data Processing ◽

Transmission Line ◽

Matlab Simulation ◽

Grounding Resistance ◽

Line Measurement ◽

On Line ◽

Good Conductor

Traditional transmission line tower grounding resistance measurements have many shortcomings, in order to make up the defects the model of transmission line tower with good conductor wires and multiple grounding leads was builded, and then the algorithm of tower grounding resistance on-line measurement was proposed. On this condition, a system based on this algorithm was designed and further analysis of the error during data processing was conducted. At last, the MATLAB simulation indicates that the algorithm has a accuracy that meets the practical requirements.

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On-line measurement of the straightness of seamless steel pipes using machine vision technique

Sensors and Actuators A Physical ◽

10.1016/s0924-4247(01)00683-5 ◽

2001 ◽

Vol 94 (1-2) ◽

pp. 95-101 ◽

Cited By ~ 40

Author(s):

R.S Lu ◽

Y.F Li ◽

Q Yu

Keyword(s):

Machine Vision ◽

Steel Pipes ◽

Line Measurement ◽

On Line ◽

Vision Technique ◽

Seamless Steel

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An on-line measurement method of injection rate of high pressure common rail system

Measurement ◽

10.1016/j.measurement.2020.108716 ◽

2021 ◽

Vol 170 ◽

pp. 108716

Author(s):

Quan Dong ◽

Xiyu Yang ◽

Hao Ni ◽

Jingdong Song ◽

Changhao Lu ◽

...

Keyword(s):

High Pressure ◽

Measurement Method ◽

Injection Rate ◽

Common Rail ◽

Common Rail System ◽

Rail System ◽

Line Measurement ◽

On Line ◽

High Pressure Common Rail

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WITHDRAWN: A study on the on-line measurement of transmission line impedances for improved relaying protection

International Journal of Electrical Power & Energy Systems ◽

10.1016/j.ijepes.2005.12.009 ◽

2006 ◽

Author(s):

Il-Dong Kim ◽

Raj K. Aggarwal

Keyword(s):

Transmission Line ◽

Line Measurement ◽

On Line

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An on-line measurement method for cable insulation resistance in a GPT's neutral point directly grounded system

Proceedings of 5th International Conference on Properties and Applications of Dielectric Materials ◽

10.1109/icpadm.1997.617617 ◽

2002 ◽

Cited By ~ 1

Author(s):

Wei Xinlao ◽

Ma Sen ◽

Chen Qingguo ◽

Wang Yonghong

Keyword(s):

Measurement Method ◽

Neutral Point ◽

Insulation Resistance ◽

Cable Insulation ◽

Line Measurement ◽

On Line

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Research of an On-Line Measurement Method for High-power IGBT Collector Current

Journal of Power Electronics ◽

10.6113/jpe.2016.16.1.362 ◽

2016 ◽

Vol 16 (1) ◽

pp. 362-373 ◽

Cited By ~ 1

Author(s):

Liangdeng Hu ◽

Chi Sun ◽

Zhihua Zhao

Keyword(s):

High Power ◽

Measurement Method ◽

Collector Current ◽

Line Measurement ◽

On Line

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On-line measurement method of transmission backlash based on angular velocity and double-end angular position information

Measurement and Control ◽

10.1177/0020294020973252 ◽

2020 ◽

pp. 002029402097325

Author(s):

Ming Li ◽

Ruirui Liang ◽

Yanshun Zhang ◽

Chuang Peng ◽

Dong Mu ◽

...

Keyword(s):

Angular Velocity ◽

Measurement Method ◽

Angular Position ◽

Sudden Change ◽

Position Information ◽

Line Measurement ◽

Gear Transmission System ◽

Position Data ◽

On Line ◽

The Moment

Backlash is the inherent characteristic of gear transmission system. It is an important mean to measure and compensate backlash to improve transmission performance. When the driving gear reverses, due to the existence of backlash, the driven gear will still keep its original steering due to inertial motion until the driven gear collision with the driving gear. In this paper, based on the analysis of the tooth gap of the driving gear and the driven gear, an on-line measurement method of the meshing tooth gap combining the angular velocity of the load end with the information of the Angle position of the two axes of the master-slave gear is presented. This method uses the gyroscope at the load end (driven wheel) to monitor the sudden change of angular velocity at the moment of gear reverse impact and re contact, and the signal is used as the judgment basis for the reverse contact moment of the driving gear and driven gear. Then, the angular position data of driving gear and driven gear are fused at the time of reverse rotation and contact impact, and the backlash of the gear is calculated online. Finally, setting up an experimental platform for measuring backlash, and the proposed method is verified. The experimental results show that the proposed method can achieve accurate backlash measurement.

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