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Faust, Oliver
- Android Based Teleoperation for the Finch Robot
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Authors
Affiliations
1 Department of Engineering and Mathematics, Sheffield Hallam University, GB
1 Department of Engineering and Mathematics, Sheffield Hallam University, GB
Source
ICTACT Journal on Communication Technology, Vol 7, No 3 (2016), Pagination: 1335-1340Abstract
The act of creating a robot involves systems engineering and creative problem solutions. It is about using established components to create a system that works in the natural or at least in the human environment. The current project is no exception, we have used the Robot Operating System (ROS) to create an android based teleoperator application for the Finch robot. A Raspberry Pi processing platform establishes the link between the android device and the Finch robot. The most creative task, during the system design, was to translate the commands from the teleoperator application into wheel movements of the Finch robot. The translation must take into account the physical setup of the robot, including unintended negative influences, such as drag. The command translation involved a nonlinear coordinate transformation. The ROS framework enabled us to focus on that nonstandard coordinate translation task by offering a high level of abstraction and the ability to create component functionalities independently.Keywords
Robotics, Teleoperation, Robot Operating System, Coordinate Transform, Raspberry Pi.
- Software Defined Antenna Testing
Abstract Views :226 |
PDF Views:3
Authors
Affiliations
1 Department of Telecommunication and Electronics Engineering, Sheffield Hallam University, GB
1 Department of Telecommunication and Electronics Engineering, Sheffield Hallam University, GB
Source
ICTACT Journal on Communication Technology, Vol 8, No 4 (2017), Pagination: 1664-1672Abstract
Micro strip patch directional antennas are an attractive solution for modern wireless systems due to their high gain and directivity. Being an attractive solution creates the need to design such devices for various application scenarios. We have addressed that need by designing, simulating, and testing a rectangular microstrip patch directional antenna at 5GHz. Antenna patch and ground plane were designed with the well-known guided wavelength equation. The antenna performance, in terms of return loss at -10dB, gain, bandwidth, and the radiation pattern was analyzed with a simulation model. The proposed antenna achieved an impedance bandwidth of 77.8MHz (from 4.9662GHz to 5.0440GHz) and a gain of 6.26dBi at 5GHz. The antenna performance was verified with a software defined radio platform. We found that the software radio measurements confirmed the key simulation results. Furthermore, the extensive use of simulation enabled us to develop both antenna and digital baseband algorithms in parallel.Keywords
Antenna, CST-MS, Gain, Directivity, Return Loss, Software Radio.References
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