Distributed Acoustic Conveyor Monitoring

Underground » Maintenance

Published: June 18Project Number: C24014

Get ReportAuthor: Paul Wilson, Edward Prochon, Fernando Vieira, Tim Brooks, Long Giang, Mohammad Amanzadeh, Scott Adam and Saiied Aminossadati | The University of Queensland

CRC Mining have investigated the application of fibre optic Distributed Acoustic Sensing (DAS) for conveyor roller condition monitoring. This is the final report of project C24014.

Monitoring by means of acoustic distributed sensing can be achieved by using a single fibre optic cable coupled to a laser source and a signal detection-recording unit in order to measure, for example, strain and temperature at thousands of locations along the fibre, simultaneously. Also, by installing a fibre optic cable along the length of a conveyor a DAS interrogator (detection-measuring-recording) unit of a certain type can detect and report vibrations from any location along the conveyor to a resolution of, say one linear metre, or less, depending on the design of the interrogator. This project explored the application of such monitoring concepts to monitoring the operating conditions of equipment in real mining environments.

This project evolved from an earlier seed-research study.

The earlier work by CRC Mining, involved conducting preliminary testing of a single-pulse DAS interrogator unit monitoring vibration phenomena of conveyor rollers at the Queensland Coal Bulk Handling facility (QBH).  The data collected during this initial trial was only later processed and analysed as a scope activity with the aim of developing suitable algorithms cable of discerning from the large and periodic time-domain acoustic frequency data sets the spectra that characterised any different stages of failed rollers/bearings. Given the linkages, this report includes references to the early analysis and first-generation algorithms that were developed.

Following a second set of field trials of a DAS conveyor monitoring system carried out at Dawson in 2015, further mathematical and algorithm developments were pursued. Earlier data sets were systematically re-processing while testing the new processing routines.  The subsequent advances in data processing led to the identification of interim technology gaps prompting a third series of DAS control tests being required, which were carried out during June 2016 on an operating coal-transfer conveyor at the Queensland Bulk Handling. In parallel, lab tests were also complete using a lab testing rig at the CRC Mining campus.

As a result of the analysis it has been shown that the DAS technology is capable of detecting, with some precision, the condition and state of wear of the bearings in conveyor rollers and it is possible to pinpoint which roller; and in some cases the exact bearing along the conveyor structure that are damaged. It has also been shown that there are differences in results arising from the way the fibre is used and set up and the selection of settings on the DAS interrogator unit.

This project explored the functionality of a DAS conveyor monitoring system and further determined key requirements of operability and minimum technical specifications that will drive the design and the testing of a deployable version.

A separate second phase of work has been completed.  The project is C25054.  A final report for C25054 is available from the ACARP website.


Health and safety, productivity and environment initiatives.

Recently Completed Projects

C26061The Young’S Moduli, Poisson’S Ratios And Poroelastic Coefficients Of Coals

This report describes the measurement of coal (and rock) properties ...

C24015 Assessment Of Convergence Based Roof Support Design For Longwall Abutment Loads

The aim of Stage two of project C24015 was to develop a roof support...

C25072New Approaches To Mine Gas Analysis And Ratios

The spontaneous combustion of coal remains a hazard in underground c...


Open Cut

Safety, productivity and the right to operate are priorities for open cut mine research.

Recently Completed Projects

C26022Real-Time Prediction Of Coal Top Through Guided Borehole Radar Wave Imaging For Open Cut Blast-Hole Drilling

Damage to the tops of coal seams caused by incorrect blast stand-off...

C26027Using An Ecotoxicological Approach To Validate The DGT Technique For The Measurement Of Bioavailable Metal Concentrations

This project builds on the opportunity identified through Project C2...

C25039Prediction Of Long-Term Salt Generation From Coal Spoils

The release of salts from spoil piles has the potential to affect su...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C250083D Flotation Of Fine Particles

In this project a process for the continuous, selective agglomeratio...

C20052Full Scale Gravity - Desliming Using Cascading REFLUX Classifiers

Considerable quantities of fine coal are disposed of as part of the ...

C26007 Revised Dustiness And DEM Test Method (Update Of AS4156.6) Part 2:Preparation

In 2015 project C23054 investigated and reviewed the Australian Stan...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C25045Stage Two - Assessment Of In Situ High-Temperature Strength Of Cokes

Stage I of this project established a reliable and repeatable proces...

C27003Review Of ACARP Research To Support Marketing Of Australian Thermal Coal

In this project, researchers pinpointed issues relating to the use o...

C25044Trace Elements In Coal; Status Of Test Methods In Use And Their Applicability


The key objectives of this stage...

Technical Market Support

Mine Site Greenhouse Gas Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C27008Selective Absorption Of Methane By Ionic Liquids

The connection of a ventilation air methane (VAM) abatement plant di...

C24061Proof-Of-Concept Photocatalytic Destruction Of Methane For Coal Mining Fugitive Emissions Abatement

Australia's fugitive emissions in 2015 were 41 Mt CO2-e (representin...

C23052Novel Stone Dust Looping Process For Ventilation Air Methane Abatement - Phase 3

This multi‐phase project is concerned with the mitigation of m...

Mine Site Greenhouse Gas Mitigation

Low Emission Coal Use

Step-change technologies aimed at reducing greenhouse gas emissions.

Recently Completed Projects

C17060BGasification Of Australian Coals

Four Australian coals were trialled in the Siemens 5 MWth pilot scale ga...

C17060AOxyfuel Technology For Carbon Capture And Storage Critical Clean Coal Technology - Interim Support

The status of oxy-fuel technology for first-generation plant is indicate...

C18007Review Of Underground Coal Gasification

This report consists of a broad review of underground coal gasification,...

Low Emission Coal Use

Mining And The Community

The relationship between mines and the local community.

Recently Completed Projects

C16027Assessing Housing And Labour Market Impacts Of Mining Developments In Bowen Basin Communities

The focus of this ACARP-funded project has been to identify a number...

C22029Understanding And Managing Cumulative Impacts Of Coal Mining And Other Land Uses In Regions With Diversified Economies

The coal industry operates in the context of competing land-uses that sh...

C23016Approval And Planning Assessment Of Black Coal Mines In NSW And Qld: A Review Of Economic Assessment Techniques

This reports on issues surrounding economic assessment and analysis ...

Mining And The Community


National Energy Research,Development & Demonstration Council (NERDDC) reports - pre 1992.

Recently Completed Projects

1609-C1609Self Heating of Spoil Piles from Open Cut Coal Mines

Self Heating of Spoil Piles from Open Cut Coal Mines

1301-C1301Stress Control Methods for Optimised Development...

Stress Control Methods for Optimised Development and Extraction Operations

0033-C1356Commissioned Report: Australian Thermal Coals...

Commissioned Report: Australian Thermal Coals - An Industry Handbook