Design Of Integrated System Research Articles

8-Point RADIX-8 Pipelined FFT Using SDF

Fast Fourier Transform (FFT) operation is one of the most important fundamental operations in the digital signal processing systems. A new pipelined Radix-8 based Fast Fourier Transformation (FFT) architecture is designed for performing frequency transformation techniques. The objective of this design is to improve the speed and to reduce the area, delay and power. Radix-8 FFT, which is used to improve the speed of functioning by reducing the computational path. In the proposed new architecture named as ―Radix-8 SDF FFT‖. In this architecture, the numbers of stages are reduced to 75%. The SDF FFT is to increasing the processing speed of architecture. The performance evaluation of Radix-8 SDF FFT architecture is determined through Very Large Scale Integration (VLSI) system design environment. In the VLSI system design, less area utilization, low power consumption and high speed are the main parameters. Hence, the main goal of proposed architecture is to reduce hardware complexity, power consumption and increasing both speed and throughput of the system. Applications: Mobile Ad-hoc Network (MANET), Orthogonal Frequency Division Multiplexing (OFDM) System.

CS reconstruction in MIMO channel using square complex orthogonal STB codes

Compressed sensing (CS) is the process of signal reconstruction at a rate far below the Nyquist sampling rate. Sometimes, CS measurements need transmission over radio mobile channel for bandwidth preserving and energy efficient system design and/or application specific system design such as wireless body area network (WBAN), remote surveillance system etc. To this aim, this work proposes an integrated system design for quality improvement in CS reconstructed images over radio mobile channel modelled as Rayleigh flat fading. The design of a non-zero-entry Single Symbol Decodable Square Complex Orthogonal, Space Time Block Codes (STBC) for 16 antennas is proposed first. This multi-channel facility is then exploited for transmission of CS measurements, which at the receiver side, undergo Robbins–Monro (RM) method, a non-parametric stochastic approach for predicting the unobserved spaces from the observed ones through recursive filtering. Similar study is also done using a relaxed convex optimization of the basis pursuit algorithm, a parametric based approach. Extensive simulation results highlight the efficacy of the proposed CS and STBC (CS–STBC) scheme for the quality improvement on the reconstructed images as the variation in the number of antennas, change in the number of measurements and variation on signal-to-noise ratio. It also highlights significant performance gain in CS reconstruction over radio mobile channel using STBC framework.

Development of a Model for the Integration of Human Factors in Cyber-physical Production Systems

The ongoing introduction of cyber-physical systems in many areas of manufacturing will create profound changes in work design. Examples are new computerized tools or changed tasks due to a new allocation of work tasks between humans and machines. Hence the possible utilization of the potential enabled by cyber-physical production systems highly depends to what extent they are designed for humans. Therefore, an integrated system design is required which includes the human factors at an early stage.This work serves as a starting point for the development of a design-to-human factors for cyber-physical production systems. On the basis of the present state-of-the-art of relevant scientific research a hypothetical model is developed, which shows the interdependencies between human-oriented work design and the resulting job performance in regard of cyber-physical production systems. We use an interdisciplinary approach consisting of research and findings from human factors, ergonomics, human-machine-interaction and work psychology in connection with engineering goals. The resulting model provides exemplarywork design actions for cyber-physical production systems.

Smart Home Assistant for Ambient Assisted Living of Elderly People with Dementia

It is the nature of life that with advancing age human brain cells are damaged and brain functions degrade, which is manifested by memory loss, lack of concentration, reduced judgement abilities as well as speaking problems and even noticeable changes in personality and behavior. When a number of these symptoms collectively detected in a person, he usually diagnosed with dementia. These people have problems in managing their daily activities and shortly become unable to live by themselves. Ways to prolong the independent life of elderly people have drawn the attention of a large scientific community. In this paper, we present an integrated system design that allows collection, recording and transmission through a cloud application of the data from different sensors placed in a house of a person having dementia. The concept of this work is a part of the so-called Internet of Things (IoT) where information from smart things around us can be evaluated and transmitted over the internet.

Guest Editorial Special Section on Energy Storage Systems

Energy storage is revolutionizing transportation by proving a sustainable alternative to fossil fuels, and opening new opportunities as flexible grid bidirectional storage through vehicle-to-grid services. In order to fully exploit these new transportation opportunities, advances still need to be achieved in energy storage, and batteries, in particular, to improve range, cost, and lifetime. Current trends show a higher penetration in road transportation compared with other sectors, but with promising roadmaps for marine, aerospace, and rail sectors. Therefore, the body of work required to achieve these roadmaps spans from electrochemical, thermal, and electrical simulations to better understand the battery operation to system integration design within the powertrain and the grid. This Special Section provides with new knowledge on the full research and development spectrum, by presenting battery electrochemical and thermal modeling techniques, design of storage solutions for electrified vehicle recharging stations, energy management for electric vehicles and simulation, and design and deployment of energy storage for rail and material handling applications.

Designing an integrated distribution system for catering services for high-speed railways: A three-echelon location routing model with tight time windows and time deadlines

An emerging task in catering services for high-speed railways (CSHR) is to design a distribution system for the delivery of high-quality perishable food products to trains in need. This paper proposes a novel model for integrating location decision making with daily rail catering operations, which are affected by various aspects of rail planning, to meet time-sensitive passenger demands. A three-echelon location routing problem with time windows and time budget constraints (3E-LRPTWTBC) is thus proposed toward formulating this integrated distribution system design problem. This model attempts to determine the capacities/locations of distribution centers and to optimize the number of meals delivered to stations. The model also attempts to generate a schedule for refrigerated cars traveling from distribution centers to rail stations for train loading whereby meals can be catered to trains within tight time windows and sold before a specified time deadline. By relaxing the time-window constraints, a relaxation model that can be solved using an off-the-shelf mixed integer programming (MIP) solver is obtained to provide a lower bound on the 3E-LRPTWTBC. A hybrid cross entropy algorithm (HCEA) is proposed to solve the 3E-LRPTWTBC. A small-scale case study is implemented, which reveals a 9.3% gap between the solution obtained using the HCEA and that obtained using the relaxation model (RM). A comparative analysis of the HCEA and an exhaustive enumeration algorithm indicates that the HCEA shows good performance in terms of computation time. Finally, a case study considering 156 trains on the Beijing-Shanghai high-speed corridor and a large-scale case study considering 1130 trains on the Chinese railway network are addressed in a comprehensive study to demonstrate the applicability of the proposed models and algorithm.

자율형 UAV 에이전트 검증을 위한 DEVS/Unity3D 연동 시스템 설계

자율형 UAV 에이전트 검증을 위한 DEVS/Unity3D 연동 시스템 설계

Integrated Design System of Toroidal Field Coil for CFETR**supported by the National Magnetic Confinement Fusion Science Program of China (Nos. 2014GB110000, 2014GB110002)

Integrating engineering software is meaningful but challenging for a system code of a fusion device. This issue is seldom considered by system codes currently. Therefore, to discuss the issue, the Integrated Design System of TF Coil (IDS-TFC) has been worked out, which consists of physical calculation, CAD, and Finite Element Analysis (FEA). Furthermore, an Integrated and Automatically Optimized Method (IAOM) has been created to address the integration and interfaces. The method utilizes a geometry parameter to connect each design submodule and achieve automatic optimization. Double-objectives optimization has been realized, confirming it is feasible to integrate and optimize engineering design and physical calculation. Moreover, IDS-TFC can also serve as a useful reference of integrated design processing for subsequent fusion design.

A systems engineering analysis of three‐point and four‐point wind turbine drivetrain configurations

AbstractThis study compares the impact of drivetrain configuration on the mass and capital cost of a series of wind turbines ranging from 1.5 MW to 5.0 MW power ratings for both land‐based and offshore applications. The analysis is performed with a new physics‐based drivetrain analysis and sizing tool, Drive Systems Engineering (DriveSE), which is part of the Wind‐Plant Integrated System Design & Engineering Model. DriveSE uses physics‐based relationships to size all major drivetrain components according to given rotor loads simulated based on International Electrotechnical Commission design load cases. The model's sensitivity to input loads that contain a high degree of variability was analyzed. Aeroelastic simulations are used to calculate the rotor forces and moments imposed on the drivetrain for each turbine design. DriveSE is then used to size all of the major drivetrain components for each turbine for both three‐point and four‐point configurations. The simulation results quantify the trade‐offs in mass and component costs for the different configurations. On average, a 16.7% decrease in total nacelle mass can be achieved when using a three‐point drivetrain configuration, resulting in a 3.5% reduction in turbine capital cost. This analysis is driven by extreme loads and does not consider fatigue. Thus, the effects of configuration choices on reliability and serviceability are not captured. However, a first order estimate of the sizing, dimensioning and costing of major drivetrain components are made which can be used in larger system studies which consider trade‐offs between subsystems such as the rotor, drivetrain and tower. Copyright © 2016 John Wiley & Sons, Ltd.

Design and Implementation of Data Integration and Analysis System for Campus Card

Design and Implementation of Data Integration and Analysis System for Campus Card

Mass Customizing Spare Parts Support Services Based on Response Time With Inventory Pooling Strategies

Spare parts support services have received increasing management attention due to the growing number of critical systems in many business sectors. In this paper, we examine an integrated system design approach to customize spare parts support services based on response time with inventory pooling strategies. To provide customized services that meet user requirements for spare part response time, we depart from the traditional spare parts management and develop a systematic approach to design service parts support services based on axiomatic design theory. In particular, we focus on pricing discrimination decisions in service parts contracts for two-tier users under a mechanism design framework. Distinguishing between users of next-day and same-day contracts for service parts operations, we further evaluate the effect of various inventory pool structures with reserve strategies through a simulation model for the objective of cost minimization. These analytical results of this new approach provide guidance for managers in customizing spare parts support services with the holistic consideration of pricing scheme, response time, and inventory policy.

VLSI based Pipelined Architecture for Radix-8 Combined SDF-SDC FFT

Background: Fast Fourier Transform (FFT) operation is one of the most important fundamental operations in the digital signal processing systems. In this paper, a new pipelined Radix-8 based Fast Fourier Transformation (FFT) architecture is designed for performing frequency transformation techniques. The objective of this paper is to improve the speed and to reduce the area, delay and power. Methods: Radix-8 FFT, which is used to improve the speed of functioning by reducing the computational path. In the proposed new architecture named as “Radix-8 combined SDF-SDC FFT”. In this architecture, the numbers of stages are reduced to 75%. The first two stages are designed using Single path delay feedback and the last two stages are designed using single-path-delay Commutator. The combined SDF-SDC FFT is to increasing the processing speed of architecture. In the proposed “pipelined Radix-8 combined SDF-SDC FFT’’ is designed in this article. Findings: In the existing Radix-8 SDF FFT, the number of stages is increased. In order to reduce the number of stages, Radix-8 combined SDF-SDC FFT has been proposed. The performance evaluation of Radix-8 combined SDF-SDC FFT architecture is determined through Very Large Scale Integration (VLSI) system design environment. In the VLSI system design, less area utilization, low power consumption and high speed are the main parameters. Hence, the main goal of proposed architecture is to reduce hardware complexity, power consumption and increasing both speed and throughput of the system. Applications: Mobile Ad-hoc Network (MANET), Orthogonal Frequency Division Multiplexing (OFDM) System, Telecommunication networking system are considered as the important applications of proposed radix-8 combined SDF-SDC FFT.

Integrated design-system as a model of modern artistically-project processes

Essence and properties of integrated design-system (IDS) are exposed in the article, which allow to examine them as a model of artistically-project processes in contemporaneity. It is well-proven that IDS is a flexible dynamic structure, which is able to be transformed and be in harmony with nature, society and man. The multidimensionalness displays of IDS is analysed. She comes forward as an object, process, informative co-operation and space of vital functions. Their close interlacing determines integrity of the system. Properties of investigated design-system (functionality, adaptation, communicativeness, self-organization, integrity) are in-process exposed, which are important descriptions in forming of modern integrated space of design.

Multi-Sensor Integration to Map Odor Distribution for the Detection of Chemical Sources.

This paper addresses the problem of mapping odor distribution derived from a chemical source using multi-sensor integration and reasoning system design. Odor localization is the problem of finding the source of an odor or other volatile chemical. Most localization methods require a mobile vehicle to follow an odor plume along its entire path, which is time consuming and may be especially difficult in a cluttered environment. To solve both of the above challenges, this paper proposes a novel algorithm that combines data from odor and anemometer sensors, and combine sensors’ data at different positions. Initially, a multi-sensor integration method, together with the path of airflow was used to map the pattern of odor particle movement. Then, more sensors are introduced at specific regions to determine the probable location of the odor source. Finally, the results of odor source location simulation and a real experiment are presented.

Simulation and Performance Analysis of Low Power Quasi Floating Gate PCS Model

The Spice Model for photo catalytic sensor (PCS) proposed by Whig and Ahmad overcome several drawbacks like complex designing, non-linearity and long computation time generally found in Flow Injection Analysis (FIA) technique by Yoon-Chang Kim et al for the determination of Chemical Oxygen Demand (COD). FIA technique involves the complete analysis including sampling and washing. Flow Injection Analysis is analytical method for the measurement of chemical oxygen demand using photochemical column. This method uses a bulky setup and takes 10-15 minutes to get the output result which is a tedious and time consuming job. If conventional method is continuously used for a long time than it is stable only for 15 days. The purpose of this paper is to propose a new Quasi Floating Gate Photo Catalytic Sensor (QFGPCS) approach which has low power consumption and compared the results with the conventional models. The proposed model operates under sub threshold conditions which are appreciated in large integrated system design. The results of simulation were found to be fairly in agreement with the theoretical predictions. The results are exhibited near linear variations of parameters of interest with appreciably reduced response time.

Integrated System Design: Promoting the Capacity of Sociotechnical Systems for Adaptation through Extensions of Cognitive Work Analysis.

This paper proposes an approach for integrated system design, which has the intent of facilitating high levels of effectiveness in sociotechnical systems by promoting their capacity for adaptation. Building on earlier ideas and empirical observations, this approach recognizes that to create adaptive systems it is necessary to integrate the design of all of the system elements, including the interfaces, teams, training, and automation, such that workers are supported in adapting their behavior as well as their structure, or organization, in a coherent manner. Current approaches for work analysis and design are limited in regard to this fundamental objective, especially in cases when workers are confronted with unforeseen events. A suitable starting point is offered by cognitive work analysis (CWA), but while this framework can support actors in adapting their behavior, it does not necessarily accommodate adaptations in their structure. Moreover, associated design approaches generally focus on individual system elements, and those that consider multiple elements appear limited in their ability to facilitate integration, especially in the manner intended here. The proposed approach puts forward the set of possibilities for work organization in a system as the central mechanism for binding the design of its various elements, so that actors can adapt their structure as well as their behavior—in a unified fashion—to handle both familiar and novel conditions. Accordingly, this paper demonstrates how the set of possibilities for work organization in a system may be demarcated independently of the situation, through extensions of CWA, and how it may be utilized in design. This lynchpin, conceptualized in the form of a diagram of work organization possibilities (WOP), is important for preserving a system's inherent capacity for adaptation. Future research should focus on validating these concepts and establishing the feasibility of implementing them in industrial contexts.

NREL Wind Integrated System Design and Engineering Model

NREL Wind Integrated System Design and Engineering Model

Design and Implementation of Efficient Advanced Encryption Standard Composite S-Box with CM-Mode

Advanced Encryption Standard is the most popular cryptographic security algorithm used for data protection and transmission. The paper proposes an implementation of the AES new Mix- Column operation. In this paper, an enhanced Mix- Column is designed for AES decryption through Very Large Scale Integration (VLSI) System design environment. In AES Mix-Column, large number of logic gates used to perform the multiplication of input stage bytes (output of shift row) and fixed defined state bytes. In order to decrease this problem, the redundant function of Mix-Column is eliminated and re-designed in this paper. Proposed model of Mix-Column minimizes 25% of logic gates compared with previous work. Further, the proposed Mix-Column of AES decryption achieves by improving the performance of area, delay and power consumption. The implementation of the transformation is optimized and increase speed.

Retinal blood vessel extraction using tunable bandpass filter and fuzzy conditional entropy

Background and objectivesExtraction of blood vessels on retinal images plays a significant role for screening of different opthalmologic diseases. However, accurate extraction of the entire and individual type of vessel silhouette from the noisy images with poorly illuminated background is a complicated task. To this aim, an integrated system design platform is suggested in this work for vessel extraction using a sequential bandpass filter followed by fuzzy conditional entropy maximization on matched filter response. MethodsAt first noise is eliminated from the image under consideration through curvelet based denoising. To include the fine details and the relatively less thick vessel structures, the image is passed through a bank of sequential bandpass filter structure optimized for contrast enhancement. Fuzzy conditional entropy on matched filter response is then maximized to find the set of multiple optimal thresholds to extract the different types of vessel silhouettes from the background. Differential Evolution algorithm is used to determine the optimal gain in bandpass filter and the combination of the fuzzy parameters. Using the multiple thresholds, retinal image is classified as the thick, the medium and the thin vessels including neovascularization. ResultsPerformance evaluated on different publicly available retinal image databases shows that the proposed method is very efficient in identifying the diverse types of vessels. Proposed method is also efficient in extracting the abnormal and the thin blood vessels in pathological retinal images. The average values of true positive rate, false positive rate and accuracy offered by the method is 76.32%, 1.99% and 96.28%, respectively for the DRIVE database and 72.82%, 2.6% and 96.16%, respectively for the STARE database. Simulation results demonstrate that the proposed method outperforms the existing methods in detecting the various types of vessels and the neovascularization structures. ConclusionsThe combination of curvelet transform and tunable bandpass filter is found to be very much effective in edge enhancement whereas fuzzy conditional entropy efficiently distinguishes vessels of different widths.

Development of an integrated bionic design system

Purpose This paper aims to propose an integrated bionic optimal design system to assist engineers in bionic design tasks. In this age of ecological awareness and sustainability, engineers are increasingly applying bionics to their product designs. A recent surge of research on bionics has presented new opportunities and challenges. To deal with these challenges, an integrated design system equipped with the capabilities of conducting biologically inspired design, solving technical contradictions, optimizing design parameters and verifying design effectiveness is required. Design/methodology/approach This study proposes a two-level analysis to help decision makers conduct multi-faceted observation and assessment on conceptual bionic design. The contradictions incurred when transferring biological principals to engineering design are solved using BioTRIZ, and the conceptual design is then created. This study conducts computer-aided engineering analysis, incorporating the Taguchi method and TOPSIS method, to obtain the optimal design of bionic products. Findings The proposed design process focuses on improving the product structure instead of changing the materials, and thus, the authors are able to put the goals of saving energy, environmental protection and sustainability into practice. Practical implications Through the design and analysis processes, the authors prove that their designed bionic-fan can effectively enhance operational efficiency and reduce the aerodynamic noise. The system can provide a practical tool for engineers intending to accomplish complete designs and verifications using bionics. Originality/value Most existing design methodologies that have attempted to combine biology with engineering design have fallen short in their level of thoroughness. This study proposes a complete bionic design system by integrating the processes of bionic-inspired design, optimization and verification.