scholarly journals European Proximity Operations Simulator 2.0 (EPOS) - A Robotic-Based Rendezvous and Docking Simulator

Author(s):  
Heike Benninghoff ◽  
Florian Rems ◽  
Eicke-Alexander Risse ◽  
Christian Mietner

The European Proximity Operations Simulator (EPOS) 2.0 located at the German Space Operations Center (GSOC) in Oberpfaffenhofen, Germany, is a robotic based test facility of the German Aerospace Center (DLR) used for simulation of rendezvous and docking (RvD) processes. Hardware such as rendezvous sensors (cameras, laser scanners) or docking tools, as well as software (e.g. for navigation and control) can be tested and verified. The facility consists of two robotic manipulators with each six degrees of freedom, a linear slide of 25m length on which one robot can be moved in the laboratory, and a computer-based monitoring and control system. EPOS 2.0 allows for real-time simulations of the rendezvous and docking process during the most critical phase (separation from 25m to 0m) of proximity and docking/berthing operations.

Author(s):  
P. Valliappan ◽  
K. Jagiełło ◽  
S. J. Wilcox

The monitoring and control of combustion systems co-firing coal and biomass is a critical consideration when aiming to increase the proportion of biomass being combusted. This is because it is likely that the combustion will become increasingly unstable as the biomass proportion increases. In order to develop a flame monitoring and control system, flame signal data sets were collected from combustion measurements taken on a 500kW pilot scale combustion test facility. The sensors used were photodiodes with sensitivities in the UV, visible and IR wavelengths. The analysis of these data, identified flame features that can be related to operational parameters such as flame stability, excess air level, NOx and CO emissions. These features were then applied in the development of an intelligent flame monitoring and optimisation system for individual burners based on these low cost sensors. The testing of the monitoring and control system on a pilot scale burner and at full scale are described in this paper.


2019 ◽  
pp. 37-47
Author(s):  
Yao Yueqin ◽  
Oleksiy Kozlov ◽  
Oleksandr Gerasin ◽  
Galyna Kondratenko

Analysis and formalization of the monitoring and automatic control tasks of the MR for the movement and execution of various types of technological operations on inclined and vertical ferromagnetic surfaces are obtained. Generalized structure of mobile robotic complex is shown with main subsystems consideration. Critical analysis of the current state of the problem of development of universal structures of mobile robots (MRs) for the various types of technological operations execution and elaborations of computerized systems for monitoring and control of MR movement is done. In particular, wheeled, walked and crawler type MRs with pneumatic, vacuum-propeller, magnetic and magnetically operated clamping devices to grip with vertical and ceiling surfaces are reviewed. The constructive features of the crawler MR with magnetic clamping devices capable of moving along sloping ferromagnetic surfaces are considered. The basic technical parameters of the MR are shown for the further synthesis of computerized monitoring and automatic control systems. Formalization of the tasks of monitoring and control of the MR positioning at the processing of large area ferromagnetic surfaces is considered from the point of view of control theory.


2019 ◽  
pp. 41-48
Author(s):  
Yan Guojun ◽  
Oleksiy Kozlov ◽  
Oleksandr Gerasin ◽  
Galyna Kondratenko

The article renders the special features of the design of a tracked mobile robot (MR) for moving over inclined ferromagnetic surfaces while performing specified technological operations. There is conducted a synthesis of the functional structure and selective technological parameters (such as control coordinates) of the computerized monitoring and control system (CMCS) intended for use with this MR. Application of the CMCS with the proposed functional structure allows substantially increasing the accuracy of the MR monitoring and control, which in turn provides for a considerable enhancement in the quality and economic efficiency of the operations on processing of large ferromagnetic surfaces.


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