Data exchange in distributed mining systems by OPC Unified Architecture, WLAN and TTE VLF technology

Mining operations rely on effective extraction policies, which base on concerted management and technical arrangements. In addition to commodities, mining of data is the increasingly matter of subject in mining engineering. The Horizon 2020 project – Real-Time-Mining supports the ongoing paradigm shift of pushing mining activities from discontinuous to continuous operation. In this respect, the partners TU Bergakademie Freiberg (TU BAF) and IBeWa Consulting tackle the issue of physical and logical data acquisition in underground mining. The first aspect of the project addresses the ‘logical’ provision of data. Mining technology is increasingly interacting among each other and integrated into globally distributed systems. At the same time, the integration of current mining devices and machineries into superordinated systems is still complex and costly. This means only a few number of mining operators is capable to integrate their operation technology into a Supervisory Control and Data Acquisition (SCADA) system. TU BAF presents the middleware OPC Unified Architecture, which is a platform independent middleware for data exchange and technology interconnection among distributed systems. By installing a SCADA demonstrator at the research and education mine Reiche Zeche, TU BAF intends to present the technical feasibility of a SCADA system basing on OPC UA even for SME mining operations. The second aspect of the project addresses the ‘physical’ provision of data via wireless transmission. The targeted use cases are mobile machineries and the surveillance of remote mine sites. Mobile machineries in underground mining are increasingly equipped with data management and autonomous operation systems. Correspondent data exchange to superordinated systems is mostly realized via Wireless Local Area Network (WLAN). A comprehensive WLAN signal coverage, however, is generally not maintained in under-ground mines due to lacking technical and economic feasibility. With the intention to in-crease the coverage/expense ratio at underground WLAN installations, TU BAF and IBe-Wa Consulting installed a WLAN test loop at Reiche Zeche mine basing on leaky feeder cables. Simultaneously, IBeWa Consulting pushes forward the surveilability of remote and/or hardly accessible mining sites by Through The Earth (TTE) data transmission. Current test performances present an enhanced stability for data transmission at ore / gneiss formations beyond 200m, primarily basing on a better alignment of the system to the isotropic characteristics of the bedrock

Tagungsband Geosymposium: 150 Jahre Geologischer Dienst in Sachsen

Anlässlich des 150 jährigen Bestehens des Geologischen Dienstes in Sachsen fand am 22.-23.6. 2022 in Freiberg eine Festveranstaltung mit Vertretern aus Politik und Fachwelt statt. Der Tagungsband beinhaltet Grußwörter, Kurzdarstellungen der Fachvorträge, einige Beiträge über aktuelle Projekte am LfULG sowie einen Gastbeitrag über den Edelstein Topas. Redaktionsschluss: 11.04.202

Der Geologische Dienst in Sachsen: Festband zum Jubiläum 150 Jahre Landesgeologie

Der Geologische Dienst von Sachsen feiert im Jahr 2022 sein 150-jähriges Jubiläum – am 6. April 1872 wurde die Geologische Landesuntersuchung im Königreich Sachsen gegründet. Auf 153 Seiten der Reihe „Geoprofil“ werden Einblicke in die Arbeit des Geologischen Dienstes im LfULG, seinen Aufgaben und die Dienste als zuständige Fachbehörde gegeben. Die elf Einzelbeiträge zeigen die aktuellen Herausforderungen und Chancen, die sich aus den Themenbereichen Umwelt, Naturschutz und Geologie für Sachsen stellen. Im Einzelnen geht es in den Beiträgen um die sächsische Rohstoffstrategie, die Suche nach einem Endlagerstandort für radioaktive Abfälle, Erdwärme, Hydrogeologie, die Eisenbahn Neubaustrecke Dresden – Prag, Naturgefahren, das geowissenschaftliche Archiv, Träger öffentlicher Belange (TöB), Geoparks und einen Blick in die 150 jährige Geschichte. Redaktionsschluss: 30.11.202

analytische Möglichkeiten der isotopischen Altersbestimmung und Spaltspuren-Datierung subduktionsgebundener Hochdruckmetamorphite

Die Arbeit leistet einen wesentlichen Beitrag zum geodynamischen Verständnis der kretazischen Inselbogen-Kontinent-Kollision und von subsequenten Exhumierungprozessen in Zentralkuba bei. Grundlage hierfür sind die zeitliche Fixierung von Metamorphose- und Exhumierungsereignissen, insbesondere von HP-Metamorphiten des Escambray Massivs, die petrogenetische Diskussion und die Datierung von Inselbogenmagmatiten. Aufgrund dieser neuen Datenbasis vom N-Rand der Karibischen Platte können entscheidende Impulse für die plattentektonische Rekonstruktion des karibischen Raumes vom oberen Jura bis in das mittlere Tertiär gegeben werden. Außerdem versteht sich die Arbeit als Evaluation der Anwendbarkeit geochronologischer Methoden bei der Datierung von subduktionsgebundenen HP-Metamorphiten. Insgesamt stellt die Arbeit durch die Synthese von geochemisch-geochronologischen, petrologischen und strukturgeologischen Daten ein Novum in der Geologie Kubas dar.thesi

Geochronologie metamorpher Komplexe am Beispiel der kretazischen Inselbogen-Kontinent-Kollisionszone Zentralkubas

Die Arbeit leistet einen wesentlichen Beitrag zum geodynamischen Verständnis der kretazischen Inselbogen-Kontinent-Kollision und von subsequenten Exhumierungprozessen in Zentralkuba bei. Grundlage hierfür sind die zeitliche Fixierung von Metamorphose- und Exhumierungsereignissen, insbesondere von HP-Metamorphiten des Escambray Massivs, die petrogenetische Diskussion und die Datierung von Inselbogenmagmatiten. Aufgrund dieser neuen Datenbasis vom N-Rand der Karibischen Platte können entscheidende Impulse für die plattentektonische Rekonstruktion des karibischen Raumes vom oberen Jura bis in das mittlere Tertiär gegeben werden. Außerdem versteht sich die Arbeit als Evaluation der Anwendbarkeit geochronologischer Methoden bei der Datierung von subduktionsgebundenen HP-Metamorphiten. Insgesamt stellt die Arbeit durch die Synthese von geochemisch-geochronologischen, petrologischen und strukturgeologischen Daten ein Novum in der Geologie Kubas dar.This work is a key contribution to our understanding of the geodynamics of Cretaceous island-arc/continent collision and subsequent exhumation processes in Central Cuba. It is based on new insights into the timing of metamorphic and exhumation events, especially with regard to the HP-metamorphic rocks of the Escambray massif, as well as on the petrogenetic interpretation and dating of magmatic island arc rocks. This new data set from the northern rim of the Caribbean plate represents a decisive impetus to the plate-tectonic reconstruction of the Caribbean realm from the Late Jurassic to the Middle Tertiary. Apart from its geodynamic aspects, this study can be viewed as an evaluation of different geochronological methods and their applicability to dating subduction-related HP-metamorphic rocks. By synthesizing geochemical, geochronological, petrological and tectonic data, this dissertation presents a completely novel perspective of Cuban geology

Data exchange in distributed mining systems by OPC Unified Architecture, WLAN and TTE VLF technology

Mining operations rely on effective extraction policies, which base on concerted management and technical arrangements. In addition to commodities, mining of data is the increasingly matter of subject in mining engineering. The Horizon 2020 project – Real-Time-Mining supports the ongoing paradigm shift of pushing mining activities from discontinuous to continuous operation. In this respect, the partners TU Bergakademie Freiberg (TU BAF) and IBeWa Consulting tackle the issue of physical and logical data acquisition in underground mining. The first aspect of the project addresses the ‘logical’ provision of data. Mining technology is increasingly interacting among each other and integrated into globally distributed systems. At the same time, the integration of current mining devices and machineries into superordinated systems is still complex and costly. This means only a few number of mining operators is capable to integrate their operation technology into a Supervisory Control and Data Acquisition (SCADA) system. TU BAF presents the middleware OPC Unified Architecture, which is a platform independent middleware for data exchange and technology interconnection among distributed systems. By installing a SCADA demonstrator at the research and education mine Reiche Zeche, TU BAF intends to present the technical feasibility of a SCADA system basing on OPC UA even for SME mining operations. The second aspect of the project addresses the ‘physical’ provision of data via wireless transmission. The targeted use cases are mobile machineries and the surveillance of remote mine sites. Mobile machineries in underground mining are increasingly equipped with data management and autonomous operation systems. Correspondent data exchange to superordinated systems is mostly realized via Wireless Local Area Network (WLAN). A comprehensive WLAN signal coverage, however, is generally not maintained in under-ground mines due to lacking technical and economic feasibility. With the intention to in-crease the coverage/expense ratio at underground WLAN installations, TU BAF and IBe-Wa Consulting installed a WLAN test loop at Reiche Zeche mine basing on leaky feeder cables. Simultaneously, IBeWa Consulting pushes forward the surveilability of remote and/or hardly accessible mining sites by Through The Earth (TTE) data transmission. Current test performances present an enhanced stability for data transmission at ore / gneiss formations beyond 200m, primarily basing on a better alignment of the system to the isotropic characteristics of the bedrock

Tagungsband Geosymposium: 150 Jahre Geologischer Dienst in Sachsen

Anlässlich des 150 jährigen Bestehens des Geologischen Dienstes in Sachsen fand am 22.-23.6. 2022 in Freiberg eine Festveranstaltung mit Vertretern aus Politik und Fachwelt statt. Der Tagungsband beinhaltet Grußwörter, Kurzdarstellungen der Fachvorträge, einige Beiträge über aktuelle Projekte am LfULG sowie einen Gastbeitrag über den Edelstein Topas. Redaktionsschluss: 11.04.202

Data exchange in distributed mining systems by OPC Unified Architecture, WLAN and TTE VLF technology

Mining operations rely on effective extraction policies, which base on concerted management and technical arrangements. In addition to commodities, mining of data is the increasingly matter of subject in mining engineering. The Horizon 2020 project – Real-Time-Mining supports the ongoing paradigm shift of pushing mining activities from discontinuous to continuous operation. In this respect, the partners TU Bergakademie Freiberg (TU BAF) and IBeWa Consulting tackle the issue of physical and logical data acquisition in underground mining. The first aspect of the project addresses the ‘logical’ provision of data. Mining technology is increasingly interacting among each other and integrated into globally distributed systems. At the same time, the integration of current mining devices and machineries into superordinated systems is still complex and costly. This means only a few number of mining operators is capable to integrate their operation technology into a Supervisory Control and Data Acquisition (SCADA) system. TU BAF presents the middleware OPC Unified Architecture, which is a platform independent middleware for data exchange and technology interconnection among distributed systems. By installing a SCADA demonstrator at the research and education mine Reiche Zeche, TU BAF intends to present the technical feasibility of a SCADA system basing on OPC UA even for SME mining operations. The second aspect of the project addresses the ‘physical’ provision of data via wireless transmission. The targeted use cases are mobile machineries and the surveillance of remote mine sites. Mobile machineries in underground mining are increasingly equipped with data management and autonomous operation systems. Correspondent data exchange to superordinated systems is mostly realized via Wireless Local Area Network (WLAN). A comprehensive WLAN signal coverage, however, is generally not maintained in under-ground mines due to lacking technical and economic feasibility. With the intention to in-crease the coverage/expense ratio at underground WLAN installations, TU BAF and IBe-Wa Consulting installed a WLAN test loop at Reiche Zeche mine basing on leaky feeder cables. Simultaneously, IBeWa Consulting pushes forward the surveilability of remote and/or hardly accessible mining sites by Through The Earth (TTE) data transmission. Current test performances present an enhanced stability for data transmission at ore / gneiss formations beyond 200m, primarily basing on a better alignment of the system to the isotropic characteristics of the bedrock

Tagungsband Geosymposium: 150 Jahre Geologischer Dienst in Sachsen

Anlässlich des 150 jährigen Bestehens des Geologischen Dienstes in Sachsen fand am 22.-23.6. 2022 in Freiberg eine Festveranstaltung mit Vertretern aus Politik und Fachwelt statt. Der Tagungsband beinhaltet Grußwörter, Kurzdarstellungen der Fachvorträge, einige Beiträge über aktuelle Projekte am LfULG sowie einen Gastbeitrag über den Edelstein Topas. Redaktionsschluss: 11.04.202