Monitoring the Geometry of Powered Roof Supports—Determination of Measurement Accuracy

Jasiulek, Dariusz; Skóra, Marcin; Jagoda, Jerzy; Jura, Jerzy; Rogala-Rojek, Joanna; Hetmańczyk, Mariusz

doi:10.3390/en16237710

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Sensors mounted on the powered roof support include inclinometers, oil pressure sensors in the hydraulic legs and a wall face distance measurement module [17,18]. It is necessary to develop a routing algorithm (to manage data transmission in a network of sensors operating on a powered roof support), regarding the entire sensor network design process.…”

Section: Characteristics Of Sensory Network Design In Hazardous Areasmentioning

confidence: 99%

“…In addition, these networks make use of advanced transmission algorithms [12][13][14], known as intelligent routing algorithms, to efficiently manage the flow of data over a wide area network infrastructure. This paper presents the process of developing routing algorithms for a sensor network dedicated to monitoring the operating parameters of powered roof supports [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Routing Algorithm for Sensor Network Monitoring the Condition of Mining Equipment

Jagoda,

Stankiewicz,

Bartoszek

et al. 2024

Applied Sciences

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This paper presents a concept of a routing algorithm for a network of sensors monitoring the condition of machinery and equipment operating in areas at risk of methane and/or coal dust explosion. It was assumed that the proposed algorithm would find application in sensor networks monitoring, among other things, oil pressure in powered roof supports and the position of powered roof support elements. The results of a literature analysis were presented, which included the simulation of sensor network routing algorithms, including, among others, reactive algorithms, proactive algorithms and algorithms based on so-called swarm intelligence (SI). As a result of the analyses, several algorithms were selected and implemented in a prototype sensor network. The characteristics of each of these algorithms are described. The article includes a description of the commissioning work of the network, which consisted of between 3 and 30 nodes. An analysis of the collected measurement data obtained for each criterion of the performance evaluation of the routing algorithms is presented.

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Section: Characteristics Of Sensory Network Design In Hazardous Areasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Routing Algorithm for Sensor Network Monitoring the Condition of Mining Equipment

Jagoda,

Stankiewicz,

Bartoszek

et al. 2024

Applied Sciences

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Computational Methods for Verifying the Normative Requirements Regarding the Lateral Correction Force of a Powered Roof Support

Szweda,

Szyguła,

Szelka

et al. 2024

Energies

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The article discusses laboratory methods and the corresponding computational methods verifying compliance with the normative requirements regarding the lateral correction force of the powered roof support. The currently used flat model only allows for checking the normative requirement in relation to the sum of active forces of the correction cylinders installed in the roof support. Determining the required value of the active force of each cylinder is possible due to the simplified FEM model of a powered roof support, described in the research work, treated as a uniform weightless elastic body loaded with a concentrated force recreating the weight of the roof support located on an inclined longwall panel. The third analysed computational method involves determining the reaction in the four correction cylinders of the roof support, creating a spatial, statically indeterminate system of forces. It enables determining the range of variability of the response in the correction cylinders as a function of the distribution of floor pressure on the roof support base. The discussed computational methods were used to determine, for example, the lateral correction force of one of the types of powered supports used in a longwall panel inclined at an angle of 35°. The usefulness of the discussed calculation methods at various stages of the designing process of the powered support and its certification has been confirmed.

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Development of a Method for Testing a Powered Roof Support in Order to Determine its Operating Parameters

Trzop,

Szurgacz,

Gil

2024

Civil and Environmental Engineering Reports

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Monitoring of powered roof supports is an area for research. External factors have a significant impact on the operation of powered support in a longwall excavation, therefore the use of solutions that will counteract these factors is an area for improvement. The article presents studies related to the adaptation of the measuring and recording system for the geometric parameters of the section and its compatibility with the powered roof support. Each of the presented stages consisted of a series of analyses based on computer simulations using the finite element method (FEM), as well as bench tests and real-life tests. The tests included defining the geometric parameters of the powered roof support’s work in the test site and the mining wall. These studies allowed for the development of guidelines for the monitoring system. The results and analysis allowed for the formulation of two crucial conclusions. The use of a measuring system is a tool that allows monitoring the geometric parameters of the powered roof support during the coal mining process. The system monitors the transverse and longitudinal inclinations of the canopy, base floor, shield and the lemniscate, as well as the operating height of the support. The structure of the powered support can also be improved to improve operational safety by installing innovative mounting brackets for the monitoring system. The holders will allow for safer and more precise installation of the sensors and will make calibration of the system easier.

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Monitoring the Geometry of Powered Roof Supports—Determination of Measurement Accuracy

Cited by 3 publications

References 18 publications

Routing Algorithm for Sensor Network Monitoring the Condition of Mining Equipment

Routing Algorithm for Sensor Network Monitoring the Condition of Mining Equipment

Computational Methods for Verifying the Normative Requirements Regarding the Lateral Correction Force of a Powered Roof Support

Development of a Method for Testing a Powered Roof Support in Order to Determine its Operating Parameters

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