scholarly journals An Eye Tracking based Aircraft Helmet Mounted Display Aiming System

2022 ◽  
Author(s):  
Mengtang Li ◽  
Quanlong Qiu ◽  
Jie Zhu ◽  
Chao Gou
Keyword(s):  
Eye Tracking ◽  
Light Source ◽  
Head Movement ◽  
Design Methodology ◽  
Proof Of Concept ◽  
Experimental Characterization ◽  
Detailed Design ◽  
Working Principle

<p>In this paper, we comprehensively present new advancements towards the working-principle, algorithm, prototype setup and experimental characterization and feasibility demonstration of a new aircraft helmet mounted display aiming system. More specifically, we describe detailed design methodology and algorithm of an eye tracking based HMD aiming system. We also present a proof-of-concept prototype and conduct experiment tests in lab environment to characterize the performance of the proposed system. Lastly, through a comparison with related works, we demonstrate the advantages of the proposed HMD system for free head movement and no additional light source required.</p>

scholarly journals An Eye Tracking based Aircraft Helmet Mounted Display Aiming System

2022 ◽  
Author(s):  
Mengtang Li ◽  
Quanlong Qiu ◽  
Jie Zhu ◽  
Chao Gou
Keyword(s):  
Eye Tracking ◽  
Light Source ◽  
Head Movement ◽  
Design Methodology ◽  
Proof Of Concept ◽  
Experimental Characterization ◽  
Detailed Design ◽  
Working Principle

<p>In this paper, we comprehensively present new advancements towards the working-principle, algorithm, prototype setup and experimental characterization and feasibility demonstration of a new aircraft helmet mounted display aiming system. More specifically, we describe detailed design methodology and algorithm of an eye tracking based HMD aiming system. We also present a proof-of-concept prototype and conduct experiment tests in lab environment to characterize the performance of the proposed system. Lastly, through a comparison with related works, we demonstrate the advantages of the proposed HMD system for free head movement and no additional light source required.</p>

scholarly journals TOWARDS A VERIFICATION AND VALIDATING TESTING FRAMEWORK TO DEVELOP BESPOKE MEDICAL PRODUCTS IN RESEARCH-FUNDED PROJECTS

2021 ◽  
Vol 1 ◽  
pp. 3199-3208
Author(s):  
Emanuel Balzan ◽  
Pierre Vella ◽  
Philip Farrugia ◽  
Edward Abela ◽  
Glenn Cassar ◽  
...  
Keyword(s):  
Medical Devices ◽  
Early Stage ◽  
Design Stage ◽  
Concept Design ◽  
Proof Of Concept ◽  
Detailed Design ◽  
Testing Framework ◽  
Medical Products ◽  
Manufacturing Technologies ◽  
Validation Testing

AbstractResearch funded projects are often concerned with the development of proof-of-concept products. Consequently, activities related to verification and validation testing (VVT) are often not considered in depth, even though various design iterations are carried out to refine an idea. Furthermore, the introduction of additive manufacturing (AM) has facilitated, in particular, the development of bespoke medical products. End bespoke products, which will be used by relevant stakeholders (e.g. patients and clinicians) are fabricated with the same manufacturing technologies used during prototyping. As a result, the detailed design stage of products fabricated by AM is much shorter. Therefore, to improve the market-readiness of bespoke medical devices, testing must be integrated within the development from an early stage, allowing better planning of resources. To address these issues, in this paper, a comprehensive VVT framework is proposed for research projects, which lack a VVT infrastructure. The framework builds up on previous studies and methods utilised in industry to enable project key experts to capture risks as early as the concept design stage.

FSS-based triplate antenna design concept for wireless devices

2021 ◽  
pp. 1-10
Author(s):  
Ashwini Kotrashetti ◽  
B. K Lande ◽  
Ajay Poddar
Keyword(s):  
Design Methodology ◽  
Design Concept ◽  
Strong Interactions ◽  
Proof Of Concept ◽  
Wireless Devices ◽  
Multiple Frequency ◽  
Modeling And Analysis ◽  
Multiband Antennas ◽  
Mode Behavior ◽  
Radiating Element

Abstract Conventional multiband antennas suffer from strong interactions among different operating frequencies, complex configurations, low bandwidth, and reduced efficiencies. A design concept for a multibeam multiband antenna in wireless devices is proposed in this paper. The design concept provides a promising approach to augment transmission and reception. The principle of design involves a primary radiating element embedded in a triplate conformation which excites a passive array of multiple frequency secondary radiators, forming a frequency selective structure in triplate (FSST). The higher order mode behavior of the parent antenna characterizes the design of FSST placed in its nearfield. The mathematical modeling and analysis of the design methodology is also presented. As proof of concept, the proposed design methodology is validated with simulations and experiments at four unlicensed communication bands and the results are compared.

Means to improve light source productivity: from proof of concept to field implementation

2016 ◽  
Author(s):  
E. Rausa ◽  
T. Cacouris ◽  
W. Conley ◽  
M. Jackson ◽  
S. Luo ◽  
...  
Keyword(s):  
Light Source ◽  
Proof Of Concept

Performance enhancement for piezoresistive microaccelerometer by geometrical design: a focused review

Sensor Review ◽  
2015 ◽  
Vol 35 (3) ◽  
pp. 310-318 ◽  
Author(s):  
Yan Liu ◽  
Hai Wang ◽  
Hongbo Qin ◽  
Yongqiang Xie
Keyword(s):  
Resonant Frequency ◽  
Design Methodology ◽  
Performance Enhancement ◽  
Performance Parameters ◽  
Content Type ◽  
Geometrical Design ◽  
Working Principle ◽  
Cross Axis

Purpose – This paper aims to provide a focused review on the geometrical designs for performance enhancement of piezoresistive microaccelerometers. Design/methodology/approach – By analyzing working principle and conventional geometries, the improved research proposals are sorted into three groups in terms of their anticipated objectives, including sensitivity, resonant frequency and cross-axis sensitivity. Accessible methods are outlined and their merits and demerits are described. Findings – Novel geometries obviously enhance the performance of accelerometers, and the efficacy can be further elevated by newer materials and fabrication processes. Research limitations/implications – This paper mainly focused on the improved geometrical designs for sensitivity, resonant frequency and cross-axis sensitivity. Other performance parameters or design schemes are not included in this paper. Originality/value – This paper generalizes the available geometries and methods for the enhancement of sensitivity, resonant frequency and cross-axis sensitivity in piezoresistive accelerometers design.

scholarly journals Design of a Smart System for Rapid Bacterial Test

Water ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 15
Author(s):  
Rajshree Patil ◽  
Saurabh Levin ◽  
Samuel Rajkumar ◽  
Tahmina Ajmal
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Bacterial Contamination ◽  
Complete System ◽  
Time Lapse ◽  
Bacterial Activity ◽  
Bacterial Cells ◽  
Proof Of Concept ◽  
Detailed Design ◽  
Smart System

In this article, we present our initial findings to support the design of an advanced field test to detect bacterial contamination in water samples. The system combines the use of image processing and neural networks to detect an early presence of bacterial activity. We present here a proof of concept with some tests results. Our initial findings are very promising and indicate detection of viable bacterial cells within a period of 2 h. To the authors’ knowledge this is the first attempt to quantify viable bacterial cells in a water sample using cell splitting. We also present a detailed design of the complete system that uses the time lapse images from a microscope to complete the design of a neural network based smart system.

Proof of Concept of an Assistive Robotic Arm Control Using Artificial Stereovision and Eye-Tracking

2019 ◽  
Vol 27 (12) ◽  
pp. 2344-2352 ◽  
Author(s):  
Yann-Seing Law-Kam Cio ◽  
Maxime Raison ◽  
Cedric Leblond Menard ◽  
Sofiane Achiche
Keyword(s):  
Eye Tracking ◽  
Robotic Arm ◽  
Proof Of Concept ◽  
Robotic Arm Control ◽  
Assistive Robotic

scholarly journals Preliminary Design of a Small Unmanned Battery Powered Tailsitter

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Bo Wang ◽  
Zhongxi Hou ◽  
Zhaowei Liu ◽  
Qingyang Chen ◽  
Xiongfeng Zhu
Keyword(s):  
Energy Consumption ◽  
Design Methodology ◽  
Design Space ◽  
Preliminary Design ◽  
Wing Loading ◽  
Detailed Design ◽  
Discharge Model ◽  
Battery Discharge ◽  
Power And Energy

This paper presents a preliminary design methodology for small unmanned battery powered tailsitters. Subsystem models, including takeoff weight, power and energy consumption models, and battery discharge model, were investigated, respectively. Feasible design space was given by simulation with mission and weight constraints, while the influences of wing loading and battery ratio were analyzed. Case study was carried out according to the design process, and the results were validated by previous designs. The design methodology can be used to determine key parameters and make necessary preparations for detailed design and vehicle realization of small battery powered tailsitters.

A Framework Supporting Life-Cycle Guidance for Fabricating Micro Components by Compression Moulding

2010 ◽  
Author(s):  
P. J. Farrugia ◽  
P. Vella ◽  
M. Mifsud
Keyword(s):  
Design Methodology ◽  
Typical Case ◽  
Economic Feasibility ◽  
Preliminary Evaluation ◽  
Proof Of Concept ◽  
Compression Moulding ◽  
Micro Manufacturing ◽  
Computer Based ◽  
Design And Manufacture ◽  
Future Work

Micro-products and components are rapidly increasing in a range of sectors. This demand requires industrial technologies capable of mass producing polymer micro products at a reasonable price. These two requirements are satisfied by the use of replication technologies such as micro compression moulding (μCM). A literature review that we conducted revealed that there is indeed little if any work explicitly related to the domain of micro compression moulding. In addition, a design methodology in micro manufacturing is still in its infancy and that there is a shortage of relevant DFX guidelines. Thus, this research aims at developing a framework for a computer-based tool whereby micro-product stakeholders are guided to select the correct mould features, material, machine and process parameters for fabricating components via micro compression moulding. The paper presents a framework developed to meet this goal. A proof-of-concept tool has also been implemented based on this framework. This tool was evaluated by typical case studies and also presented to a number of experts in the field. Preliminary evaluation results provide a degree of evidence that technology based on the framework contributes a step towards providing guidance for the design and manufacture of mould tools for fabricating μ-components by compression moulding. Another contribution of this paper is the preliminary fabrication platform using μCM. Future work is however required mainly to assess the economic feasibility of the fabrication platform, to address the limitations of the implemented tool, and to assess its effectiveness in practice.

Design of an Onboard Directional Anemometer for Bicycles

2020 ◽  
Author(s):  
Valentina Hurtado ◽  
Santiago Arango ◽  
Luis Muñoz ◽  
Omar López
Keyword(s):  
Wind Speed ◽  
Wind Tunnel ◽  
Wind Velocity ◽  
Design Process ◽  
Design Methodology ◽  
Structural Integrity ◽  
Pitot Tube ◽  
Proof Of Concept ◽  
Large Influence ◽  
Main Component

Abstract Wind speed has large influence on the results of road tests applied to bicycles. For this reason, this paper presents the design process of an onboard anemometer dedicated to bicycle testing. The design provides an affordable way to quantify both magnitude and direction of the wind velocity relative to the bicycle, allowing recording on arbitrary wind conditions that could arise during a test. The design methodology was structured with two major phases. The first was centered on the proof-of-concept for the use of a multi-hole pitot tube as main component for the onboard anemometer. The second was focused on the design of the structure, considering both packaging and structural integrity. The prototype of anemometer was tested in a wind tunnel to verify its performance, and it was also tested under severe vibrations to verify its structural integrity. The results showed that this concept can be used as a part of the bicycle instrumentation for road tests.

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