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3D laser scanning of bucket wheel excavators is useful in identifying key geometric parameters and in the creation of mathematical models. Thus, a compact and highly accurate 3D point model of a bucket wheel excavator was obtained. The evaluation consisted of vectorising their important features. These data were used to visualise the spatial position of excavators and track their movements in real time. Knowing the position of excavators, particularly the displacement of the bucket wheel relative to the digital terrain model (opencast mine), coupled with the geological model is important for mine management and calculation of volumes of extracted materials in real time. The 3D laser scanning measurements were carried out at Severo?eské Doly mines. [ABSTRACT FROM PUBLISHER]

Satellite technologies have undergone a rapid development during the last two decades - even in surface mining. The possibilities of using this technology for bucket wheel centre spatial determination are investigated at the Libous Mine in the North Bohemian brown coal basin (Czech Republic). The position of the bucket wheel centre is computed by means of global navigation satellite system (GNSS) data, inclinometer and incremental measurements. Data is transferred to a base and saved in a database. The main goal is to improve the control system for opencast mining. Visualisation of the bucket wheels' spatial positions and their movements in real time is performed by KVAS software - mine modelling and planning software 'GNSS MineModel'. The article describes applications, which are used for automation of mine surveying and control of mining. [ABSTRACT FROM AUTHOR]