MONITORING OF HEAPS USING VARIOUS TECHNOLOGIES

Civil Engineering Journal. 2015;2015(2) DOI 10.14311/CEJ.2015.02.0011

 

Journal Homepage

Journal Title: Civil Engineering Journal

ISSN: 1805-2576 (Online)

Publisher: Czech Technical University, Prague

Society/Institution: Czech Technical University in Prague, Faculty of Civil Engineering

LCC Subject Category: Technology: Engineering (General). Civil engineering (General)

Country of publisher: Czech Republic

Language of fulltext: Czech, English

Full-text formats available: PDF

 

AUTHORS

Helena Straková (Czech University of Life Sciences Prague, Department of Applied Geoinformatics and Spatial Planning, Kamýcká 1176, Prague 6, Suchdol , Czech Republic)
Jaroslav Šedina (Czech Technical University in Prague, Faculty of Civil Engineering, Laboratory of Photogrammetry, Dept. of Geomatics, Thákurova 7, 166 09, Prague 6, Czech Republic.)
Zdeňka Bílá (Czech Technical University in Prague, Faculty of Civil Engineering, Laboratory of Photogrammetry, Dept. of Geomatics, Thákurova 7, 166 09, Prague 6, Czech Republic.)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 6 weeks

 

Abstract | Full Text

Coal heaps are frequently self-burning by definite environmental conditions, therefore thermal activity monitoring of these localities is important. For this purpose, data from terrestrial measurement or thermal infrared images are used. Subsurface coal fires monitored by terrestrial measurement by contact thermometers are time-consuming and dangerous because of landslides. That is a reason why coal fires are mostly monitored by thermal infrared images through remote sensing, i.e. satellite-borne or airborne data, which is much more suitable for thermal activity monitoring. The satellite data do not have sufficient geometric resolution (60 - 120m per pixel), aerial thermal data are accurate, but expensive. Unmanned aerial vehicles (UAV or better RPAS - remotely piloted aircraft systems) can be solution – thermal images obtained by RPAS have good geometric resolution and can be used for small areas only and our case project areas are not so big. From economic point of view, low cost technology is preferred. The article describes opportunities of low-cost thermal infrared data, the use of RPAS (mapping by Microkopter system) in thermal monitoring and photogrammetric tasks (coal heaps) such as low cost aerial thermal mapping. The problems of planning and data acquisition are illustrated by creating an orthophoto. Theoretical preparation of data acquisition deals with RPAS Microkopter mission planning and operation. The obtained data are processed by several sets of software specially developed for close range aerial photogrammetry. The outputs are orthophoto images, digital elevation models and thermal map. As a bonus, low-cost aerial methods with small thermal camera are shown.