检索结果-内蒙古大学图书馆

Internet of Things 2025年

作者： Afonso Mota Carlos Serôdio Ana Briga-Sá Antonio Valente Department of Engineering School of Sciences and Technology Universidade de Trás-os-Montes e Alto Douro (UTAD) 5000-801 Vila Real Portugal Center ALGORITMI Universidade do Minho Campus de Azurém Guimarães 4800-058 Portugal CQ-VR (Center of Chemistry of Vila Real) Universidade de Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal CRIIS (Centre for Robotics in Industry and Intelligent Systems) INESC-TEC—Institute for Systems and Computer Engineering Technology and Science Campus da FEUP Porto 4200-465 Portugal

Humans spend most of their time indoors, where air quality and comfort are crucial to health and well-being. Elevated CO 2 levels in buildings can reduce cognitive function, discomfort, and health issues. Indoor CO 2 monitoring has emerged as a key focus in the literature, particularly in residential buildings, as it can play a vital role in helping to maintain adequate ventilation rates. The growing smart home market demands seamless integration and control, which are essential for implementing IAQ sensing devices. However, interoperability barriers between platforms and devices continue to hinder smart home adoption. To address these challenges, Matter protocol is starting to appear in the market. In this work, a wireless CO 2 sensor is developed based on ESP32-C6 and SCD40 and integrated into a created Matter-enabled ecosystem formed with the Home Assistant open-source platform. The utilized hardware and software enable the usage of two different wireless communication technologies, WiFi and Thread, enhancing compatibility. The study highlights the rapid and seamless onboarding of the developed CO 2 monitoring device into smart home ecosystems using the Matter protocol. As a result, once the device is successfully added to the ecosystem, the measurements can be accessed and analyzed through a mobile application, forming an IoT environment.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Femoropopliteal Artery Stent Detection in Fluoroscopy Using Otsu's Preprocessing and CNN Segmentation 4

Femoropopliteal Artery Stent Detection in Fluoroscopy Using ...

引用

4th International Conference on Technological Advancements in Computational sciences, ICTACS 2024

作者： Rajinikanth, Venkatesan Damaševičius, Robertas Taniar, David Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Division of Research and Innovation Department of Computer Science and Engineering TN Chennai602105 India Kaunas University of Technology Centre of Real Time Computer Systems Kaunas44249 Lithuania Monash University Faculty of Information Technolog MelbourneVIC3800 Australia

ISBN: (纸本)9798350387490

computer algorithm supported medical image analysis is a prevalent method in clinics, which effectively alleviates the diagnostic burden associated with traditional image assessment methods. This study aims to create a method that utilizes a Convolutional-Neural-Network (CNN) to accurately segment the Femoropopliteal Artery Stent (FAS) in Digital Fluoroscopy Images (DFI). In order to improve the accuracy of segmentation, this study used the combination of Otsu's tri-level thresholding and the Lévy-Flight Distribution Algorithm (LFDA). The suggested technique consists of many stages: collecting and resizing images and masks, boosting the DFI using Otsu and LFDA, using CNN-segmentation to extract the stent region, comparing segmented stent with mask, and calculating the required performance metrics. The efficacy of the suggested system is validated by analyzing the raw and thresholded DFI. The investigational results of this work affirm that this method achieves a higher level of accuracy (>96%) in segmenting images when the Otsu's preprocessed image is utilized. The experimental study employs the UNet-variants, and in the future, alternative CNN-segmentation methodologies can be utilized to validate the effectiveness of the presented scheme. © 2024 IEEE.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

Process automation using adaptive fuzzy control 2

Process automation using adaptive fuzzy control

引用

2nd New Zealand International Two-Stream Conference on Artificial Neural Networks and Expert systems, ANNES 1995

作者： Hammerschmidt, O. Doersam, T. Inst. for Microcomput. and Autom. Karlsruhe Univ. Kaiserstr. 12 Karlsruhe0-76128 Germany Institute for Real-Time Computer Systems and Robotics Karlsruhe Univ. Kaiserstr. 12 Karlsruhe0-76128 Germany

ISBN: (纸本)0818671742

In process automation the control of plants with uncertainty or unknown parameters normally requires either a costly identification phase or an intensive fine-tuning of the controller. An easy adaptive fuzzy control is proposed which allows automatic controller tuning during operation with respect to desired closed loop behaviour. This adaptive control was added to the fuzzy kernel of an existing process automation system. Finally, experimental results of a three fingered robot gripper using this adaptive fuzzy control are presented. © 1995 IEEE.

关键词： Controllers

来源：评论

学校读者我要写书评

暂无评论

A design method for oversampled warped cosine-modulated filter banks

A design method for oversampled warped cosine-modulated filt...

引用

作者： Maxim, Vashkevich Alexander, Petrovsky Department of Computer Engineering Faculty of Computer-Aided Design Belarussian State Univercity of Informatics and Radioelectronics 6 P. Brovky str 220013 Minsk Belarus Department of Real-Time Systems Faculty of Computer Science Bialystok Univercity of Technology ul. Wiejska 45A 15-351 Bialystok Poland

ISBN: (纸本)9788390474342

This paper presents an efficient method for the design of M-channel oversampled warped cosine-modulated filter banks. The method consists in filter prototype design for synthesis filter bank using optimization procedure, which minimizes filter bank overall distortion transfer function. Optimization takes into account channel subsampling factors as well. Copyright © 2010 by institute of Electronics, Silesian University of Technology.

关键词： Filter banks

来源：评论

学校读者我要写书评

暂无评论

Analog, Programmable Switched Capacitor FIR Filter Based on Rotator Architecture Implemented in CMOS Technology 26

Analog, Programmable Switched Capacitor FIR Filter Based on ...

引用

26th IEEE Signal Processing: Algorithms, Architectures, Arrangements, and Applications, SPA 2023

作者： Pawlowski, Pawel Dlugosz, Rafal Radkowski, Marek Watly, Mateusz Dabrowski, Adam Poznań University of Technology Division of Signal Processing and Electronic Systems Faculty of Control Robotics and Electrical Engineering Institute of Automatic Control and Robotics Poznań60-965 Poland Bydgoszcz University of Science and Technology Faculty of Telecommunication Computer Science and Electrical Engineering Bydgoszcz85-796 Poland

ISBN: (纸本)9798350304985

The paper presents project and its verification of a prototype integrated circuit containing an analog, programmable finite impulse response (FIR) filter, implemented in CMOS 350 nm technology. The structure of the filter is based on the switched capacitor technique. In circuits of this type, one of main challenges is an efficient implementation of filter coefficients, which result from several factors described in this work. When implementing such filters as programmable circuits, the values of their coefficients have to be limited to a selected range, i.e. a given resolution in bits. In the implemented prototype filter, the filter coefficients are represented by 6 bits in sign-magnitude notation, so they can take 63 different values only. In such filters, it is not possible to directly implement any frequency response of the filter. Each time, it is necessary to properly round the theoretical values of the coefficients so that they fit into the available range of discrete values resulting from the implementation. The authors of the work designed an algorithm that allows such matching. The paper also presents results of measurements of the prototype chip. © 2023 Division of Signal Processing and Electronic systems, Poznan University of Technology (DSPES PUT).

关键词： FIR filters

来源：评论

学校读者我要写书评

暂无评论

Software architecture of the Autonomous Mobile Outdoor Robot AMOR

Software architecture of the Autonomous Mobile Outdoor Robot...

引用

IEEE Symposium on Intelligent Vehicle

作者： Klaus-Dieter Kuhnert Institute of Real-Time Learning Systems Department of Electrical Engineering and Computer Science University of Siegen Germany

Even if outdoor robotics is gaining increasing interest, universal systems are rare to find up to now. One of them is the autonomous mobile outdoor robot (AMOR), which operates in rough terrain under arbitrary weather condition. This paper presents its software architecture and some performance figures. The whole system is designed by a modular and layered paradigm, to allow for easy reconfiguration and adaptation to new tasks. Elementary behaviours act as the fundament, which delivers the basic abilities and secures the robot. Model based components are utilized for more intelligent tasks like obstacle avoidance and local/global path planning. Robust operation in complex terrain is achieved by combining a multitude of sensors. The software architecture unifies them by introducing a virtualisation layer, which hides all hardware specific consideration from the application programmer. This way the overall system configuration can be easily adapted to the actual task without changing the high level software. Above the medium layer an object oriented system has been implemented, that is able to localise, navigate and avoid obstacles in rough terrain. The overall performance of the system has been proven by winning the first price in autonomous driving in the European Land Robot Trial (ELROB 2007) for urban and non-urban terrain. Details of the performance are given in the results.

关键词： Vehicles

来源：评论

学校读者我要写书评

暂无评论

Sensor-based globally asymptotically stable range-only simultaneous localization and mapping

Sensor-based globally asymptotically stable range-only simul...

引用

52nd IEEE Conference on Decision and Control, CDC 2013

作者： Lourenço, Pedro Batista, Pedro Oliveira, Paulo Silvestre, Carlos Philip Chen, C.L. Institute for Systems and Robotics Universidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal Department of Electrical and Computer Engineering Faculty of Science and Technology University of Macau China

ISBN: (纸本)9781467357173

Range-only simultaneous localization and mapping is addressed in this paper, through the design, analysis, and experimental validation of a globally asymptotically stable (GAS) filter. A nonlinear sensor-based system is designed and its dynamics augmented so that the proposed formulation can be considered as linear time-varying for the purpose of observability analysis. This allows the establishment of observability results related to the original nonlinear system that naturally lead to the design of a Kalman filter with GAS error dynamics. The performance of the proposed algorithm is assessed resorting to a set of realistic simulations and to the results obtained from experimental tests. © 2013 IEEE.

关键词： Observability

来源：评论

学校读者我要写书评

暂无评论

Fusion of Stereo-Camera and PMD-Camera Data for real-time Suited Precise 3D Environment Reconstruction

Fusion of Stereo-Camera and PMD-Camera Data for Real-Time Su...

引用

2006 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Klaus-dieter Kuhnert Martin Stommel Institute of Real-Time Learning Systems Department of Electrical Engineering and Computer Science University of Siegen Germany

3D environment reconstruction is a basic task, delivering the data for mapping, localization and navigation in mobile robotics. We present a new technique that combines a stereo-camera system with a PMD-camera. Both systems generate distance images of the environment but with different characteristics. It is shown that each system compensates effectively for the deficiencies of the other one. The combined system is real-time suited. Experimental data of an indoor scene including the calibration procedure are reported

关键词： Cameras Robot vision systems Image reconstruction Mobile robots Optical modulation Robustness Intelligent robots real time systems Navigation Layout

来源：评论

学校读者我要写书评

暂无评论

A Parallel and Asynchronous Blob Shape Descriptor Implemented in CMOS Technology 33

A Parallel and Asynchronous Blob Shape Descriptor Implemente...

引用

33rd IEEE International Conference on Microelectronics, MIEL 2023

作者： Bogacki, P. Dlugosz, M. Talaska, T. Dlugosz, R. Aptiv Services Poland Kraków30-399 Poland Agh University of Science and Technology Institute of Telecommunications Faculty of Computer Science Electronics and Telecommunications Kraków30-059 Poland Poznan University of Technology Faculty of Control Robotics and Electrical Engineering Institute of Automation and Robotics Division of Signal Processing and Electronic Systems Poznan60-965 Poland Bydgoszcz University of Science and Technology Faculty of Telecommunication Computer Science and Electrical Engineering Bydgoszcz85-796 Poland

ISBN: (纸本)9798350347760

The paper presents a family of novel light blob shape descriptors for use in selected active safety algorithms used in Advanced Driver Assistance systems (ADAS). One of the motivations was to obtain a descriptor that would ensure low computational complexity. This makes it easy to implement both in software and hardware. One assumption is that the location of the center of a given light spot is approximately known. The principle of its operation is then to count white pixels in selected directions, starting from this central point. A key issue here is an efficient way of determining indexes of particular pixels belonging to the image patch, as well as the location of points representing places where the white area turns into black. In the case of a hardware implementation, this can be done using a parallel circuit operating in asynchronous mode, without the need for a control clock. © 2023 IEEE.

关键词： Pixels

来源：评论

学校读者我要写书评

暂无评论

Optical Position Stabilization of an UAV for Autonomous Landing

Optical Position Stabilization of an UAV for Autonomous Land...

引用

ROBOTIK 2012;7th German Conference on robotics

作者： Markus Ax Stefan Thamke Lars Kuhnert Jens Schlemper Klaus-Dieter Kuhnert University of Siegen Fak. IV - Electrical Engineering and Computer Science Institute for Real-Time Learning Systems

Vertical Take-Off and Landing (VTOL) capable Mini Unmanned Aerial Vehicles (MUAV) are an economic alternative to real helicopters if local aerial pictures or other aerial measurements are needed. With electronic stabilization, GPS based position-hold and autonomous way-point functions these systems are easy to operate. While autonomous take off and flying are done routinely, this is not true for autonomous landing. GPS based position stabilization, in conjunction with the normally used cheap and small IMUs, is not accurate enough to avoid dangerous moves in the very last moment of the landing operation. While sufficient for an emergency landing this is not suitable as routine operation. In this paper a solution is presented which uses optical flow techniques for position stabilization in the moment just before the touch down to avoid the inaccuracies from the GPS at this critical moment.

关键词： Optical sensors Robot sensing systems Optical variables measurement Optical imaging Global Positioning System Adaptive optics Mice

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：