检索结果-内蒙古大学图书馆

ieee International symposium on Circuits and systems (ISCAS)

作者： Porrasmaa, Santeri Jarvinen, Okko Kempi, Ilia Stadius, Kari Kosunen, Marko Ryynanen, Jussi Aalto Univ Sch Elect Engn Dept Elect & Nanoengn Espoo Finland

ISBN: (纸本)9798350330991;9798350331004

Time-based analog-to-digital converters (ADCs) have recently gained attention because of their ability to reach high sample rates with good energy efficiency. The performance of most implementations is limited by the Voltage-to-Time Converter (VTC), hence necessitating thorough analysis on its performance. This paper derives expressions for the noise and linearity of a constant-slope VTC. The derived expressions provide an explicit link between the circuit parameters and VTC performance as well as offer insight on the available trade-offs. Based on the expressions, a general design methodology for constant-slope VTCs is proposed. The simulated verification with 28-nm CMOS shows good agreement with the presented analysis and with previously measured results, thereby corroborating the proposed design methodology. The presented design methodology allows the developed understanding between the VTC circuit parameters and performance metrics to be utilized in e.g. design exploration and algorithmic circuit optimization to find an optimal set of parameters for a given target specification.

关键词： voltage-to-time converter VTC time-based analog-to-digital converter ADC noise linearity power-area-speed trade-off

来源：评论

学校读者我要写书评

暂无评论

Application of FMVEA by design for Adding Smart Functionalities to an Existing Campervan 10

Application of FMVEA by Design for Adding Smart Functionalit...

引用

10th ieee International symposium on systems engineering, ISSE 2024

作者： Binder, Christoph Hoher, Simon Maxim, Benjamin Riedmann, Sarah Neureiter, Christian Huber, Stefan Salzburg University of Applied Sciences Jr Center for Dependable System-of-Systems Engineering Puch/Salzburg Austria Salzburg University of Applied Sciences Jr Center for Intelligent and Secure Industrial Automation Puch/Salzburg Austria Salzburg University of Applied Sciences Puch/Salzburg Austria

ISBN: (纸本)9798350353723

Due to the increasing use of software and information technologies in the industrial sector and for consumer goods, the engineering of these smart systems is becoming ever more challenging. Existing OT architectures need to be revised and OT security aspects need to be addressed. In order to address these challenges in a systematic way, the prior use of Model-Based systems engineering (MBSE) can create a holistic system description that satisfies all stakeholders and ensures seamless technological implementation. The Failure Modes, Vulnerabilities and Effect Analysis (FMVEA) can be used as a template for a vulnerability cause-effect chain analysis technique extended with security. This represents a unified model for security cause-effect analysis. While the classic Failure Mode & Effects Analysis (FMEA) is usually applied very late in the systems engineering process, we show that the FMVEA should ideally be used by design to identify necessary components and functions for threat scenarios. As an example the FMVEA by design technique is then applied to add smart functionalities to an existing campervan. © 2024 ieee.

关键词： Requirements engineering

来源：评论

学校读者我要写书评

暂无评论

An Object-Oriented Approach to the Modular design of Mechatronic systems

引用

ieee TRANSACTIONS ON engineering MANAGEMENT 2024年 71卷 2623-2639页

作者： Zhang, Zhinan Xun Zhuge Li, Xiang Evans, Richard Liu, Ang Shanghai Jiao Tong Univ Sch Mech Engn Shanghai 200240 Peoples R China Shanghai Jiao Tong Univ GEC Acad Interdisciplinary Innovat Design Res Ctr Shanghai 200240 Peoples R China Dalhousie Univ Fac Comp Sci Halifax NS B3H 4R2 Canada Univ New South Wales Sch Mech & Mfg Engn Sydney NSW 2052 Australia

The design of modern mechatronic systems involves multidisciplinary and high-level integration, creating challenging and complex tasks for industrial designers and engineers. Their development requires intricate interaction between heterogeneous subsystems, and necessitates coordinated trans-sectoral cooperation between mechanical, electronic, and software engineers. Although efforts have been made to create efficient methods to guide the design of mechatronic systems, no existing solutions solve the complexity of design problems experienced during their design. This article, therefore, proposes a structured step-by-step approach to guide the design of mechatronic systems using an object-oriented methodology. Three information streams are employed that flow through the logical layers of a mechatronic system to track requirements and define modular specifications during the design process. The proposed approach benefits those developing mechatronic systems by improving collaboration, minimizing errors, reducing chances of design failure, and helping meet the desired functionality and goal of multidisciplinary integration. To evaluate the proposed approach and demonstrate the practicability of the systematic framework, we present a case study of a library book returning system. Our results highlight the capability of the proposed approach to guarantee top-down consistency and traceability of derived specifications among logical layers and contribute to the successful integration of requirements during the design process of mechatronic systems.

关键词： Object oriented modeling Mechatronics Analytical models Task analysis design methodology systems Modeling Language Stakeholders design methodology information streams mechatronic system (MS) modular design object oriented

来源：评论

学校读者我要写书评

暂无评论

High-Throughput Starch Content Estimation using RF Return Loss: Theory, Analysis and Test Instrument design

High-Throughput Starch Content Estimation using RF Return Lo...

引用

ieee International symposium on Circuits and systems (ISCAS)

作者： Odedeyi, Temitope Issa, Ali Poole, Clive Darwazeh, Izzat UCL Dept Elect & Elect Engn London WC1E 7JE England

ISBN: (纸本)9798350330991;9798350331004

This paper explores the application of radio frequency (RF) return loss measurements to estimate starch content in cassava, from the theoretical framework to the development of a portable test instrument utilising this method. The design evolution of the portable instrument for starch content estimation, employing RF reflectometry, is described, together with the calibration of the instrument against known starch content samples in the field. This design progression, from a basic hardware platform for proof of concept to versions with wireless connectivity, user interface enhancements, rechargeable batteries, and a focus on cost reduction and mass production suitability, has the potential to benefit farmers and further advancements in food quality assessment. Uploading of measured data from this instrument to the cloud, by means of a custom smartphone app, is also described.

关键词： Equivalent circuit modelling food and crop quality estimation cassava electrical impedance spectroscopy return loss food technology food sustainability reflectometer IoT PSoC

来源：评论

学校读者我要写书评

暂无评论

Improved Hotplug Caching Scheme Using PDAs

Improved Hotplug Caching Scheme Using PDAs

引用

ieee International symposium on information Theory (ISIT)

作者： Rajput, Charul Rajan, B. Sundar Indian Inst Sci Dept Elect Commun Engn Bengaluru India

ISBN: (纸本)9798350382853;9798350382846

We consider a hotplug coded caching systems in which some users are offline at the time of delivery. A placement delivery array (PDA) is a well-known tool for constructing a coded caching scheme for dedicated caches. In this paper, we introduce the concept of PDAs for hotplug coded caching schemes and refer to it as hotplug placement delivery array (HpPDA). We give an algorithm to describe the placement and the delivery phase of a hotplug coded caching scheme using HpPDA. We show that an existing hotplug coded caching scheme given in [Y. Ma and D. Tuninetti, "On coded caching systems with offline users," in 2022 ieee International symposium on information Theory (ISIT), 2022, pp. 1133-1138] corresponds to a class of HpPDAs, and then propose a method to further improve the rate of that scheme.

关键词： Clutter (information theory)

来源：评论

学校读者我要写书评

暂无评论

Fuzzy-Model-Based Robust Fault Estimation Observer design for Nonlinear Discrete-Time systems Using Dissipativity Theory

引用

ieee Transactions on systems, Man, and Cybernetics: systems 2025年第5期55卷 3076-3085页

作者： Mu, Yunfei Zhang, Huaguang Li, Weihua Zhang, Kun Northeastern University College of Information Science and Engineering Liaoning Shenyang110004 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering Liaoning Shenyang110004 China Space Engineering University Beijing100191 China Beihang University School of Astronautics Beijing100191 China

This article investigates the robust fault estimation (FE) scheme for a class of discrete-time nonlinear dynamics subject to simultaneous bounded disturbances, sensor and actuator/process faults through the T–S fuzzy method. By constructing an augmented system that contains sensor faults as part of its state, a dissipativity-based FE observer is proposed to achieve sensor and actuator/process faults reconstruction. Combine with the fuzzy Lyapunov function method and dissipativity theory, some brand-new conditions with slack scalars and matrices are attained to ensure that observation error systems are strictly (R, W, S) -δ- dissipative. Besides, to improve the transient FE performance, regional pole placement problem is also considered in FE observer design. It is worth mentioning that different from some existing results which assume that actuator faults occur in a constant form, the method given in this article is suitable for more types of faults such as time-varying ones. By two simulation experiments, the validity and practicability of the proposed FE observer are fully illustrated. © 2013 ieee.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

design of Rapid Estimation System for Civil engineering Investment in Industrial Plant Construction

Design of Rapid Estimation System for Civil Engineering Inve...

引用

2023 ieee International symposium on Broadband Multimedia systems and Broadcasting, BMSB 2023

作者： Niu, Jianbin Zhao, Dong Institute of Engineering Economics China Nuclear Power Engineering Corporation Beijing China

ISBN: (纸本)9798350321524

This paper is to provide an effective solution for the rapid estimation of industrial plants with new process and new design, i.e., starting from the design source, studying how to use the existing design information to improve the estimation accuracy of new projects with less civil construction information in the pre-project stage, and verifying the results of correlation between building structure design parameters and technical and economic parameters of industrial projects, sorting out a feasible system process, and finally Form a model and rapid estimation system for civil construction cost estimation in the pre-decision stage of industrial plants. © 2023 ieee.

关键词： Industrial plants

来源：评论

学校读者我要写书评

暂无评论

Air Traffic Control and Flight Management systems Communication Interface for Four-Dimensional Trajectory Operations 3

Air Traffic Control and Flight Management Systems Communicat...

引用

3rd International symposium on Aerospace engineering and systems, ISAES 2024

作者： Chen, Xinglin Ren, Yanli Jiang, Bowen Wang, Ping School of Communication and Information Engineering Shanghai University Shanghai200444 China Comac Shanghai Aircraft Design and Research Institute Shanghai201000 China

ISBN: (纸本)9798350350418

The operational scenarios in airspace are becoming increasingly diverse and complex. Facilitating four-dimensional trajectory operations stands out as a prominent trend in the ongoing development of civil aviation transportation technology. The interaction and data exchange between Air Traffic Control (ATC) applications and Flight Management systems (FMS) are essential to support these advanced trajectory operations. Based on the ARINC 656 specification, proposed a communication interface tailored for the Future Air Navigation System (FANS) 3/C and FMS to facilitate four-dimensional trajectory operations. The design has been validated, providing valuable guidance for the practical implementation of relevant technologies within the civil aviation. © 2024 ieee.

关键词： Air traffic control

来源：评论

学校读者我要写书评

暂无评论

Scale-Free Collaborative Protocol design for Exact Output Synchronization of Multi-Agent systems in the Presence of Disturbances and Measurement Noise With Known Frequencies

引用

ieee TRANSACTIONS ON NETWORK SCIENCE AND engineering 2024年第6期11卷 5720-5731页

作者： Liu, Zhenwei Zhang, Meirong Saberi, Ali Stoorvogel, Anton A. Northeastern Univ Coll Informat Sci & Engn Shenyang 110819 Peoples R China Minist Educ Key Lab Syst Control & Informat Proc Shanghai 200240 Peoples R China Gonzaga Univ Sch Engn & Appl Sci Spokane WA 99258 USA Washington State Univ Sch Elect Engn & Comp Sci Pullman WA 99164 USA Univ Twente Dept Elect Engn Math & Comp Sci NL-7522 NB Enschede Netherlands

Cooperative control is concerned with engineering systems that can be characterized as a collection of decision making components called agents with locally sensed information and limited inter-component communication, all seeking to achieve a collective objective. Examples include mobile sensor networks, autonomous vehicle systems, distributed computation, and power systems. Areas of research that are related to cooperative control include multi-agent control, distributed systems, networked control, etc. Most of the results in cooperative control (such as synchronization) of MAS require some prior information of the communication topology, which means that control or synchronization might not be achieved when there is a change in the communication topology. In particular, scale fragility has shown that instability of the network often occurs when the number of agents grows large. In this paper, we focus on scalable synchronization of MAS in the presence of disturbances and measurement noise with known frequencies. We develop a scale-free collaborative protocol design for this class of MAS. The scalable exact output and regulated output synchronizations are developed for homogeneous MAS with non-introspective agents and heterogeneous MAS with introspective agents, respectively. The proposed protocol design methodology is solely based on agent models and does not need any information about the communication network or the number of agents. The results are illustrated in numerical examples with the random number of agents.

关键词： Synchronization Protocols Topology Frequency measurement Eigenvalues and eigenfunctions Noise Noise measurement Disturbances exact output synchronization scale-free linear design, and measurement noise known frequency

来源：评论

学校读者我要写书评

暂无评论

design THINKING IN A systems engineering WORLD, WITHIN A GOVERNMENTAL CONTEXT

引用

INCOSE International symposium 2024年第1期34卷 1319-1353页

作者： Braun, Kavita Johns Hopkins Applied Physics Laboratory 11100 Johns Hopkins Rd. LaurelMD20723 United States

systems engineering evolution has been an incredible asset to innovation. This is particularly true in industries that drive its academic advancement and maturity. In these industries, systems engineering is a proven approach to developing a program from conception through retirement. design thinking is a design methodology and separate from systems engineering/ thinking;it is defined by its intensely human-centered approach. This report hypothesizes that design thinking processes used during the concept development phase of the systems engineering process enables a more comprehensive view of key challenges due to the inclusion of more contextual stakeholder information, particularly in a government context. A mixed methods approach using 35 surveys and 11 interviews of subject matter experts, project managers, and innovation challenge participants was used to test the hypothesis. Interviewees disagreed on the impact that design thinking processes ultimately have on stakeholder information. There was a common consensus that the process yields key beneficiaries. The quantitative data showed a shift in familiarity with design thinking principles during the innovation challenge as a result of design thinking teaching modules. The increase in familiarity correlated with an increased likelihood to use various design thinking processes during concept development, and stronger agreement that design thinking affected understanding the stakeholders, key beneficiaries, and comprehension of the challenge space. Together, the qualitative and quantitative data agreement on the addition of key beneficiaries is evidence in support of design thinking processes affecting the context of stakeholder information. Embracing more contextual stakeholder information results in designers seeking a more comprehensive view of the challenge space. Additionally, analogous research can have a significant effect on comprehension of the challenge space but there is a higher barrier to entry for ne

关键词： systems thinking

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：