Design and implementation of a low cost, modular, adaptable and open-source XYZ positioning system for neurophysiology

The VR-Desktop initiative is an effort to bring key benefits of projection-based virtual reality into the mainstream of teaching and research at the Pennsylvania State University, through the deployment of comparatively low cost and easy to use virtual reality and integrated multimedia display systems within a variety of contexts. Recent experiences with design and implementation of single- and multi-screen VR systems for teaching and research are described. The systems discussed employ low cost and readily available hardware components, familiar desktop computing environments, and open-source VR development toolkits. The approach is modular and easily adaptable to various applications in research or instruction.

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Open-Source Low-Cost Antenna Measurement Setup for Rapid Echoic Measurements

10.36227/techrxiv.16610818.v1 ◽

2021 ◽

Author(s):

Mahmoud Wagih ◽

Thomas Moody

Keyword(s):

Open Source ◽

Low Cost ◽

Positioning System ◽

Antenna Measurement ◽

3 Dimensional ◽

Massive Growth ◽

Full Wave ◽

Significant Research ◽

The Internet Of Things

With the massive growth in wireless systems and the internet of things vision, low-cost and rapid antenna measurements in echoic lab environments have attracted significant research, commercial, and educational interest in the last decade. In this paper, we present a low-cost antenna positioning system based on open-source positioning hardware, for in-situ 3-dimensional radiation pattern measurements. The positioner is an off-the-shelf Arduino robotic arm and can perform azimuth and elevation measurements over a hemisphere using different rotation mechanisms. The positioning system is used in conjunction with a commercial Vector Network Analyzer (VNA) and wire λ/2 antennas for the second VNA port. The measured radiation patterns of a flexible microstrip patch antenna using the proposed setup are compared to 3D full-wave simulations as well as anechoic chamber measurements. The measurement setup, excluding the VNA, costs less than $300, and does not require calibrated reference antennas, rotary connectors, or specific PC peripherals. The open-source design library is publicly available at git.soton.ac.uk/mahm1m19/antennameasurement_system/.

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Design and Implementation of an Open Source and Low-Cost Nanosatellite Platform

Digital Technologies and Applications - Lecture Notes in Networks and Systems ◽

10.1007/978-3-030-73882-2_39 ◽

2021 ◽

pp. 421-432

Author(s):

Ahmed Hanafi ◽

Aziz Derouich ◽

Mohammed Karim ◽

Assiya Lemmassi

Keyword(s):

Open Source ◽

Low Cost ◽

Design And Implementation

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Design and implementation of a low-cost, open source IoT-based SCADA system using ESP32 with OLED, ThingsBoard and MQTT protocol

AIMS Electronics and Electrical Engineering ◽

10.3934/electreng.2020.1.57 ◽

2020 ◽

Vol 4 (1) ◽

pp. 57-86 ◽

Cited By ~ 1

Author(s):

Lawrence O. Aghenta ◽

◽

M. Tariq Iqbal

Keyword(s):

Open Source ◽

Low Cost ◽

Design And Implementation ◽

Scada System

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Indoor positioning system for movement path analysis in healthcare institutions

Finnish Journal of eHealth and eWelfare ◽

10.23996/fjhw.61007 ◽

2017 ◽

Vol 9 (2-3) ◽

pp. 112 ◽

Cited By ~ 4

Author(s):

Stefan Grönroos ◽

Laura-Maria Peltonen ◽

Valentin Soloviev ◽

Johan Lilius ◽

Sanna Salanterä

Keyword(s):

Low Cost ◽

Hospital Setting ◽

Signal Strength ◽

Indoor Positioning ◽

Positioning System ◽

Fitness For Purpose ◽

Short Term ◽

Design And Implementation ◽

The Impact ◽

Indoor Positioning System

In this paper, we describe an indoor positioning system designed to provide data on the movement patterns of hospital personnel. The data collection is ongoing and part of a larger study project, which aims to evaluate the impact of an information system implemented in a hospital setting. The indoor positioning system was designed to be non-intrusive and straightforward to deploy in multiple hospitals, while requiring minimal existing infrastructure. To this end, the system is based on battery-powered Bluetooth beacons, and mobile phones measuring the signal strength of the beacons to position their bearers. This paper describes the design and implementation of the system. We analyze the positioning accuracy of the system in order to evaluate its fitness for purpose. Based on the results, the system is suitable for short-term deployments due to its low cost and ease of installation.

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Controller Design and Implementation for a 6-DOF Magnetically Levitated Positioner With High-Precision

Design Engineering, Parts A and B ◽

10.1115/imece2005-82556 ◽

2005 ◽

Author(s):

Ho Yu ◽

Won-Jong Kim

Keyword(s):

High Precision ◽

Digital Signal Processor ◽

Controller Design ◽

Low Cost ◽

Positioning System ◽

Vertical Force ◽

Mass System ◽

Single Input Single Output ◽

Design And Implementation ◽

Magnetically Levitated

This paper presents the controller design and implementation of a high-precision 6-degree-of-freedom (6-DOF) magnetically levitated (maglev) positioner. This high-precision positioning system consists of a novel concentrated-field magnet matrix and a triangular single-moving part that carries three 3-phase permanent-magnet linear-levitation-motor armatures. Since only a single levitated moving part, namely the platen, generates all required fine and coarse motions, this positioning system is reliable and low-cost. Three planar levitation motors based on the Lorentz-force law not only generate the vertical force to levitate the triangular platen but control the platen’s position and orientation in the horizontal plane. All 6-DOF motions are controlled by magnetic forces only. The platen is regarded a pure mass system, and the spring and damping coefficients are neglected except for the vertical directions. Single-input single-output (SISO) digital lead-lag controllers are designed and implemented on a digital signal processor (DSP). This 6-DOF fully magnetically levitated positioner has a total mass of 5.91 kg and currently exhibits a 120 mm × 120 mm travel range. This positioner is highly suitable for semiconductor-manufacturing applications such as wafer steppers. Several experimental motion profiles are presented to demonstrate the maglev stage’s capability of accurately tracking any planar and 3-D paths.

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Design and implementation of fast floating point units for FPGAs

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v19.i3.pp1480-1489 ◽

2020 ◽

Vol 19 (3) ◽

pp. 1480

Author(s):

Mohammed Falih Hassan ◽

Karime Farhood Hussein ◽

Bahaa Al-Musawi

Keyword(s):

Open Source ◽

Numerical Stability ◽

High Performance ◽

Low Cost ◽

Floating Point ◽

Design And Implementation ◽

Functional Block ◽

Open Source Framework ◽

Floating Point Unit ◽

Stability And Accuracy

<p>Due to growth in demand for high-performance applications that require high numerical stability and accuracy, the need for floating-point FPGA has been increased. In this work, an open-source and efficient floating-point unit is implemented on a standard Xilinx Sparton-6 FPGA platform. The proposed design is described in a hierarchal way starting from functional block descriptions toward modules level design. Our implementation used minimal resources available on the targeting FPGA board, tested on Sparton-6 FPGA platform and verified on ModelSim. The open-source framework can be embedded or customized for low-cost FPGA devices that do not offer floating-point units.</p>

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Open-Source Low-Cost Antenna Measurement Setup for Rapid Echoic Measurements

10.36227/techrxiv.16610818 ◽

2021 ◽

Author(s):

Mahmoud Wagih ◽

Thomas Moody

Keyword(s):

Open Source ◽

Low Cost ◽

Positioning System ◽

Antenna Measurement ◽

3 Dimensional ◽

Massive Growth ◽

Full Wave ◽

Significant Research ◽

The Internet Of Things

With the massive growth in wireless systems and the internet of things vision, low-cost and rapid antenna measurements in echoic lab environments have attracted significant research, commercial, and educational interest in the last decade. In this paper, we present a low-cost antenna positioning system based on open-source positioning hardware, for in-situ 3-dimensional radiation pattern measurements. The positioner is an off-the-shelf Arduino robotic arm and can perform azimuth and elevation measurements over a hemisphere using different rotation mechanisms. The positioning system is used in conjunction with a commercial Vector Network Analyzer (VNA) and wire λ/2 antennas for the second VNA port. The measured radiation patterns of a flexible microstrip patch antenna using the proposed setup are compared to 3D full-wave simulations as well as anechoic chamber measurements. The measurement setup, excluding the VNA, costs less than $300, and does not require calibrated reference antennas, rotary connectors, or specific PC peripherals. The open-source design library is publicly available at git.soton.ac.uk/mahm1m19/antennameasurement_system/.

Download Full-text