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1 – 10 of over 5000The paper aims to report the development of an Unmanned Aerial Vehicle (UAV) Testbed Training Platform (TTP). The development is to enable users to safely fly and control the UAV…
Abstract
Purpose
The paper aims to report the development of an Unmanned Aerial Vehicle (UAV) Testbed Training Platform (TTP). The development is to enable users to safely fly and control the UAV in real time within a limited (yet unconstrained) virtually created environment. Thus, the paper introduces a hardware–virtual environment coupling concept, the Panda3D gaming engine utilization to develop the graphical user interface (GUI) and the 3D-flying environment, as well as the interfacing electronics that enables tracking, monitoring and mapping of real-time movement onto the virtual domain and vice verse.
Design/methodology/approach
The platform comprises a spring-shuttle assembly fixed to a heavy aluminium base. The spring supports a rotating platform (RP), which is intended to support UAVs. The RP yaw, pitch and roll are measured by an inertial measurement unit, its climb/descend is measured by a low cost infrared proximity sensor and its rotation is measured by a rotary optical encoder. The hardware is coupled to a virtual environment (VE), which was developed using the Panda3D gaming engine. The VE includes a GUI to generate, edit, load and save real-life environments. Hardware manoeuvres are reflected into the VE.
Findings
The prototype was proven effective in dynamically mapping and tracking the rotating platform movements in the virtual environment. This should not be confused with the hardware in loop approach, which requires the inclusion of a mathematical model of the hardware in a loop. The finding will provide future means of testing navigation and tracking algorithms.
Research limitations/implications
The work is still new, and there is great room for improvement in many aspects. Here, this paper reports the concept and its technical implementation only.
Practical implications
In the literature, various testbeds were reported, and it is felt that there is still room to come up with a better design that enables UAV flying in safer and unlimited environments. This has many practical implications, particularly in testing control and navigation algorithms in hazardous fields.
Social implications
The main social impact is to utilise the concept to develop systems that are capable of autonomous rescue mission navigation in disaster zones.
Originality/value
The authors are aware that various researchers have developed various testbeds, at different degrees of freedom. Similarly, the authors are also aware that researchers have used game engines to simulate mobile robots or sophisticated equipment (like the VICON Motion Capture System) to measure to perform complex manoeuvres. However, the cost of this kind of equipment is very high, autonomous movements are planned in restricted environments and tested systems are only autonomous in certain setups. However, the idea of mapping the dynamics of an avatar flying object onto a 3D-VE is novel. To improve productivity and rapid prototyping, this paper proposes the use of commercially available game engines, such as the Panda3D, to create virtual environments.
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Annalisa Milella, Grazia Cicirelli and Arcangelo Distante
The purpose of this paper is to investigate the use of passive radio frequency identification (RFID) technology for environment mapping and surveillance by an autonomous mobile…
Abstract
Purpose
The purpose of this paper is to investigate the use of passive radio frequency identification (RFID) technology for environment mapping and surveillance by an autonomous mobile robot.
Design/methodology/approach
Proposes a fuzzy inference method to localize RFID tags in the environment.
Findings
Demonstrates that RFID technology can be successfully integrated in mobile robot systems to support navigation and provide the robot with mapping and surveillance capabilities.
Originality/value
Use of fuzzy reasoning to learn the model of the RFID device and localize the tags, enhancing the capability of the system to recognize and monitor the environment.
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Christian Ivancsits and Min‐Fan Ricky Lee
This paper aims to address three major issues in the development of a vision‐based navigation system for small unmanned aerial vehicles (UAVs) which can be characterized as…
Abstract
Purpose
This paper aims to address three major issues in the development of a vision‐based navigation system for small unmanned aerial vehicles (UAVs) which can be characterized as follows: technical constraints, robust image feature matching and an efficient and precise method for visual navigation.
Design/methodology/approach
The authors present and evaluate methods for their solution such as wireless networked control, highly distinctive feature descriptors (HDF) and a visual odometry system.
Findings
Proposed feature descriptors achieve significant improvements in computation time by detaching the explicit scale invariance of the widely used scale invariant feature transform. The feasibility of wireless networked real‐time control for vision‐based navigation is evaluated in terms of latency and data throughput. The visual odometry system uses a single camera to reconstruct the camera path and the structure of the environment, and achieved and error of 1.65 percent w.r.t total path length on a circular trajectory of 9.43 m.
Originality/value
The originality/value lies in the contribution of the presented work to the solution of visual odometry for small unmanned aerial vehicles.
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Riyaz Ali Shaik and Elizabeth Rufus
This paper aims to review the shape sensing techniques using large area flexible electronics (LAFE). Shape perception of humanoid robots using tactile data is mainly focused.
Abstract
Purpose
This paper aims to review the shape sensing techniques using large area flexible electronics (LAFE). Shape perception of humanoid robots using tactile data is mainly focused.
Design/methodology/approach
Research papers on different shape sensing methodologies of objects with large area, published in the past 15 years, are reviewed with emphasis on contact-based shape sensors. Fiber optics based shape sensing methodology is discussed for comparison purpose.
Findings
LAFE-based shape sensors of humanoid robots incorporating advanced computational data handling techniques such as neural networks and machine learning (ML) algorithms are observed to give results with best resolution in 3D shape reconstruction.
Research limitations/implications
The literature review is limited to shape sensing application either two- or three-dimensional (3D) LAFE. Optical shape sensing is briefly discussed which is widely used for small area. Optical scanners provide the best 3D shape reconstruction in the noncontact-based shape sensing; here this paper focuses only on contact-based shape sensing.
Practical implications
Contact-based shape sensing using polymer nanocomposites is a very economical solution as compared to optical 3D scanners. Although optical 3D scanners can provide a high resolution and fast scan of the 3D shape of the object, they require line of sight and complex image reconstruction algorithms. Using LAFE larger objects can be scanned with ML and basic electronic circuitory, which reduces the price hugely.
Social implications
LAFE can be used as a wearable sensor to monitor critical biological parameters. They can be used to detect shape of large body parts and aid in designing prosthetic devices. Tactile sensing in humanoid robots is accomplished by electronic skin of the robot which is a prime example of human–machine interface at workplace.
Originality/value
This paper reviews a unique feature of LAFE in shape sensing of large area objects. It provides insights from mechanical, electrical, hardware and software perspective in the sensor design. The most suitable approach for large object shape sensing using LAFE is also suggested.
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Digital technology in the avionics systems equipping aircraft coming into service has been developed to meet the needs of civil and military operators in the current environment…
Abstract
Digital technology in the avionics systems equipping aircraft coming into service has been developed to meet the needs of civil and military operators in the current environment and its influence is particularly marked on the flight deck where the extensive use of cathode ray tube (CRT) and other displays is greatly enhancing many functions. In the civil field, improvements in flight safety and airline operations have been realised and for military aircraft, the cockpit has been optimised for air‐to‐air and air‐to‐ground operations with relevant information projected on the Head Up Display (HUD) while other displays on the instrument panel present additional data in an uncluttered form.
The aim of this paper is to present the results preparation of a new glass cockpit for a general aviation category airplane with a TP100 turboprop 180 kW engine. All the works…
Abstract
Purpose
The aim of this paper is to present the results preparation of a new glass cockpit for a general aviation category airplane with a TP100 turboprop 180 kW engine. All the works were carried out within the framework of the European programme: “Efficient Systems and Propulsion for Small Aircraft” – ESPOSA.
Design/methodology/approach
As a part of the ongoing work, the avionics equipment available on the market were thoroughly analysed. Optimization of choice was defined at the level of costs, ergonomics and development requirements of the engine manufacturer. The paper presents the issues of the realized project and discusses its specific characteristics, such as advantages and disadvantages in comparison to the conventional analogue cockpit and the possibility of adaptation for the plane.
Findings
New avionics, ground and in-flight tests were carried out. The data were collected, which, together with an ergonomics assessment done by the pilot and the observer, confirmed the previously established technical and operational objectives.
Practical implications
Most airplanes, when being modernized, encounter minor or major problems. A new approach to upgrading the avionics, involving the exchange of a piston engine with a turbine engine, which is supported by 3D software, has allowed a significant reduction of working time and costs.
Originality/value
The achieved results allow specifying a plan of changes, necessary to adapt the aircraft to a new avionic system. However, an important value is to show a new development direction of the turbine engine implementation in general aviation aircrafts.
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Qiongwei Ye and Baojun Ma
Internet + and Electronic Business in China is a comprehensive resource that provides insight and analysis into E-commerce in China and how it has revolutionized and continues to…
Abstract
Internet + and Electronic Business in China is a comprehensive resource that provides insight and analysis into E-commerce in China and how it has revolutionized and continues to revolutionize business and society. Split into four distinct sections, the book first lays out the theoretical foundations and fundamental concepts of E-Business before moving on to look at internet+ innovation models and their applications in different industries such as agriculture, finance and commerce. The book then provides a comprehensive analysis of E-business platforms and their applications in China before finishing with four comprehensive case studies of major E-business projects, providing readers with successful examples of implementing E-Business entrepreneurship projects.
Internet + and Electronic Business in China is a comprehensive resource that provides insights and analysis into how E-commerce has revolutionized and continues to revolutionize business and society in China.
Andy Turner, Alba X. Realpe, Louise M. Wallace and Joanna Kosmala-Anderson
There is growing interest in self-management support for people living with mental health problems. The purpose of this paper is to describe the evaluation of a co-designed and…
Abstract
Purpose
There is growing interest in self-management support for people living with mental health problems. The purpose of this paper is to describe the evaluation of a co-designed and co-delivered self-management programme (SMP) for people living with depression delivered as part of large scale National Health Service quality improvement programme, which was grounded in the principles of co-production. The authors investigated whether participants became more activated, were less psychologically distressed enjoyed better health status, and quality of life, and improved their self-management skills after attending the seven-week SMP.
Design/methodology/approach
The authors conducted a longitudinal study of 114 people living with depression who attended the SMP. Participants completed self-reported measures before attending the SMP and at six months follow up.
Findings
Patient activation significantly improved six months after the SMP (baseline M=49.6, SD=12.3, follow up M=57.2, SD=15.0, t(113)=4.83, p < 0.001; d=0.61). Participants’ experience of depression symptoms as measured by the Patient Health Questionnaire-9 significantly reduced (baseline M=15.5, SD=6.8, follow up M=10.6, SD=6.9, t(106)=7.22, p < 0.001, d=−0.72). Participants’ anxiety and depression as measured by the Hospital Anxiety Depression Scale also decreased significantly (baseline anxiety: M=13.1, SD=4.2, follow up M=10.2, SD=4.4, t(79)=6.29, p < 0.001, d=−0.69); (baseline depression: M=10.3, SD=4.6, follow up M=7.7, SD=4.5, t(79)=5.32, p < 0.001, d=−0.56). The authors also observed significant improvement in participants’ health status (baseline M=0.5, SD=0.3, follow up M=0.6, SD=0.3, t(97)=−3.86, p < 0.001, d=0.33), and health-related quality of life (baseline M=45.4, SD=20.5, follow up M=60.8, SD=22.8, t(91)=−2.71, p=0.008, d=0.75). About 35 per cent of participant showed substantial improvements of self-management skills.
Originality/value
The co-produced depression SMP is innovative in a UK mental health setting. Improvements in activation, depression, anxiety, quality of life and self-management skills suggest that the SMP could make a useful contribution to the recovery services in mental health.
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Designed to serve short to medium ranges (up to 3,300 nm), the Airbus Industrie A310 achieves optimum performance on routes requiring a capacity of 200–265 passengers. It is…
Abstract
Designed to serve short to medium ranges (up to 3,300 nm), the Airbus Industrie A310 achieves optimum performance on routes requiring a capacity of 200–265 passengers. It is notable that some 80% of airlines' short to medium range network consists of operations over sectors up to 1,500 nm and over these distances the A310 will have 22% lower fuel consumption per seat than competing wide bodies and 7% lower than semi‐wide bodied aircraft. The A310 is a logical extension of the company's products that will fill the gap between the large narrow‐bodied types such as the Boeing 757, and the A300. Formally launched in July, 1978, design and development work on the new aircraft has now been completed and it will commence ground testing before the end of this year. First flight of the A310 is scheduled for March, 1982, and initial entry into service with Swissair and Lufthansa will be in March, 1983.