A design of endoscopic imaging system for hyper long pipeline based on wheeled pipe robot

Zheng, Dongtian; Tan, Haishu; Zhou, Fuqiang

doi:10.1063/1.4977316

Cited by 8 publications

(7 citation statements)

References 6 publications

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“…Fig. 1 shows examples of the Pipeline Inspection Gauge (PIG) [9,10], screw [16,17], inchworm [18][19][20][21][22][23][24], wall press [25][26][27][28][29], walking [30][31][32][33][34], caterpillar [35][36][37][38][39], and wheel type [40][41], [50][51][52], [42][43][44][45][46][47][48][49]. These popular forms of movement have drawbacks in addition to their benefits [53].…”

Section: Open Accessmentioning

confidence: 99%

Robotic Inspection Monitoring System for Pipelines

Baballe¹

2022

AIS

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The most popular method for transporting fluids and gases is through pipelines nowadays. Regular inspection is necessary for the pipelines to work correctly. Humans must not enter potentially dangerous environments to inspect these pipelines. As a result of this, pipeline robots came into existence. These pipe inspection robots help in pipeline inspection, protecting numerous people from harm since human beings cannot enter the pipes and inspect them in case there is any such or kind of damage that requires repair. Despite numerous improvements, pipeline robots still have several limitations. The introduction of this in pipe inspection robots helps to solve many problems, such as leakage of the gas or fluid pipelines, rustiness, and also if the pipe is broken from any part.

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Section: Open Accessmentioning

confidence: 99%

Robotic Inspection Monitoring System for Pipelines

Baballe¹

2022

AIS

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“…The first of them is the examination of the barrel itself as an element of the tool that is subject to wear [3]. Various endoscopic methods for examining the trunks require moving the tool to the technical unit [4]. Despite the high quality of diagnostics, such methods reduce the combat power of an artillery unit and cannot be considered operational.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of a universal binary classifier of the state of artillery barrels by the physical fields of shots

Dobrynin¹,

Boltenkov²,

Kuzmenko³

et al. 2022

AAIT

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An artillery shot is accompanied by the release of combustion products of powder gases from the barrel. It is proposed to usemuzzle ejection to classify the level of barrel wear during firing. A full-scale experiment was carried out with high-speed video recording in the visible and infrared ranges of the dynamics of the development of muzzle ejection when firing guns with a defect-free and worn barrel. Muzzle ejection when fired from a large-caliber gun consists of three spatial regions: frontal and two side, associated with the emission of powder gases through the openings of the compensators. A technique for analyzing three synchronized video streams has been developed. The technique made it possible to quite fully investigate the processes of muzzle ejectiondevelopment dynamics in defect-free and worn barrels. Informative signs are chosen, which are different for the dynamics of muzzle ejection from defect-free and worn barrels. This madeit possible to build a binary classifier of the condition of the trunks by the level of wear based on the support vector machine with least squares. In contrast to the classical SVM classifier, thisallowed us to reduce the calculation time and reduce the required size of the training set. To assess the quality of classification, it is proposed to rely on only errors of the first and second kind, but also an integral indicator –the probability of error-free classification. To increase the reliability of the classification, the concept of a universal binary classifier is proposed, which uses both video recording of the muzzle ejection and acoustic fields of the shot –ballistic and muzzle waves –to diagnose the state of the barrel. On the basis of experimental data, it is shown that the use of all physical fields accompanying an artillery shot for the binary SVM classification allows obtaining a high value of the error-free classification probability.

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“…Endoscopes are the next generation of instrumental methods of wear control [17]. They enable a fairly detailed study of the condition of the inner barrel surface, presentation of its image in any projection [18], and quantitative processing of the measurement data [19]. Endoscopic methods of barrel control were brought to a robotic level [20].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a method for determining the wear of artillery barrels by acoustic fields of shots

Dobrynin

Maksymov

Boltenkov

2020

EEJET

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6 use [3]. Ultimately, wear can be considered as an integral process leading to the final result: a decrease in initial shell velocity and an increase in its spread from shot to shot as a random variable [4]. In addition to the military-applied aspect, the artillery barrel wear has a material economic aspect. The cost of barrels of current large-caliber artillery systems is estimated at 30-35 % of the cost of the system in general. Further operation of the barrel which has reached the maximum level of wear can lead to its complete, irrecoverable failure. In this case, the measures of replacement and disposal of out-of-service barrels lead to large economic and time losses. The methods used today for assessing wear of artillery barrels are either obsolete and rather approximate or based on modern technologies requiring expensive job-dedicated equipment. The latter methods are very costly and time-consuming. At the same time, it is known that an artillery shot creates powerful acoustic fields that can be recorded at sufficiently large distances. According to [5], analysis of the acoustic fields accompanying firing can be used to find out 6 APPLIED PHYSICS

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A design of endoscopic imaging system for hyper long pipeline based on wheeled pipe robot

Cited by 8 publications

References 6 publications

Robotic Inspection Monitoring System for Pipelines

Robotic Inspection Monitoring System for Pipelines

Development of a universal binary classifier of the state of artillery barrels by the physical fields of shots

Development of a method for determining the wear of artillery barrels by acoustic fields of shots

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