检索结果-内蒙古大学图书馆

7th IEEE International Humanitarian Technologies Conference, IHTC 2024

作者： Steinhagen, Bastian Jungh, Timon Hesse, Marc Bielefeld University Cognitronics and Sensor Systems Bielefeld Germany

ISBN: (纸本)9798350354645

This paper presents a cost-efficient retrofit strategy for the digitalization of low voltage grids, leveraging the advancements of Industry 4.0 technologies such as Internet of Things (IoT) and edge computing. Facing the challenges of traditional grid management systems, like scalability, data processing, cybersecurity, and integration of renewable energies, this strategy proposes a practical solution to enhance grid observability. By implementing this approach in a local grid station and two cable distributors, we illustrate the potential for significant improvements in grid management, including real-time monitoring of power consumption and energy feedback. The findings underscore the transformative impact of digital technologies on the energy sector, offering insights into the future of grid management and the integration of renewable energy sources. This study contributes to the evolving discourse on grid digitalization, providing a framework for deploying IoT and edge computing in low voltage grids to achieve a more sustainable and efficient energy future. © 2024 IEEE.

关键词： Power grids

来源：评论

学校读者我要写书评

暂无评论

A Digital Twin Implementation for the AMiRo 29

A Digital Twin Implementation for the AMiRo

引用

29th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2024

作者： Klarhorst, Christian Quirin, Dennis Hesse, Marc Rückert, Ulrich Bielefeld University Cognitronics & Sensor Systems Bielefeld Germany

ISBN: (纸本)9798350361230

The concept of Asset Administration Shells (AAS), which enables the implementation of digital twins, is important for advancing Industry 4.0 by facilitating the standardized, machine-readable integration of diverse industrial systems. This paper presents the implementation of a Digital Twin for the Autonomous Mini Robot (AMiRo), a modular robot platform used in research and education. The Digital Twin replicates both the physical and software components of AMiRo, enabling centralized management, maintenance, and remote control. Key contributions include the practical application of Digital Twin standards, enhancing student and researcher interaction with the robots, and demonstrating the benefits of standardization in improving interoperability and reducing development efforts. © 2024 IEEE.

关键词： Modular robots

来源：评论

学校读者我要写书评

暂无评论

Efficient Edge AI for Next Generation Smart Mirror Applications

引用

IEEE Access 2025年 13卷 93755-93774页

作者： Nils Kucza Florian Porrmann Christian Stollenwerk Jens Hagemeyer Cognitronics and Sensor Systems CITEC Bielefeld University Bielefeld Germany

A natural user interaction interface is required to enhance living environments to be fully smart, which would imply features like user-specific, individual interaction as well as awareness of context, situation, and environment. One already introduced example of such an interaction interface using only web service-based speech recognition is voice assistants, such as Amazon Alexa. A widely used visual solution is a smart mirror, consisting of a semi-transparent mirror underlay with a display and a computing device. In most cases, it only shows information next to the mirror image and does not feature an interactive interaction with the user. Hence, it does not utilize the potential of locally processed artificial intelligence. This publication presents the enhancement of a smart mirror with locally processed artificial intelligence, ensuring low-latency interaction as well non-exposure of private data. For a pleasant user experience, the image-based recognition of objects, gestures, and faces in combination with voice commands via speech recognition is used. With these features, the user can be identified, interact with the system, and receive personalized information or assistance. Due to the modular software architecture using ROS2 nodes, different embedded hardware modules and accelerators can be utilized. Possible configurations for such hardware and accelerator systems as well as optimization to increase energy efficiency are described and evaluated. Low power consumption, and therefore high energy-efficiency, is necessary for the application as it is intended to be integrated into private homes. Optimizations using pruning are evaluated and show improvements in energy per processed frame, required calculations per frame (50% reduction), and accuracy (increased for some classes by 15%). Currently the best solution regarding efficiency and optimized DNN models achieves 30FPS for object, gesture, and face detection models simultaneously while consuming around 38

关键词： Mirrors Hardware Artificial intelligence Speech recognition Energy efficiency Faces Operating systems Face recognition Edge AI Accuracy

来源：评论

学校读者我要写书评

暂无评论

Integrating Industry 4.0 approaches into Low Voltage Grids: A Cost-Efficient Retrofit Strategy Using IoT and Edge Computing

Integrating Industry 4.0 approaches into Low Voltage Grids: ...

引用

IEEE Canada International Humanitarian Technology Conference (IHTC)

作者： Bastian Steinhagen Timon Jungh Marc Hesse Cognitronics and Sensor Systems Bielefeld University Bielefeld Germany

ISBN: (数字)9798350354645

ISBN: (纸本)9798350354652

关键词： Low voltage Renewable energy sources Technological innovation Power demand Scalability Real-time systems Fourth Industrial Revolution Internet of Things Observability Edge computing

来源：评论

学校读者我要写书评

暂无评论

A Digital Twin Implementation for the AMiRo

A Digital Twin Implementation for the AMiRo

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Christian Klarhorst Dennis Quirin Marc Hesse Ulrich Rückert Cognitronics & Sensor Systems Bielefeld University Bielefeld Germany

ISBN: (数字)9798350361230

ISBN: (纸本)9798350361247

关键词： Service robots Education Software Digital twins Maintenance Fourth Industrial Revolution Standards Remote control Manufacturing automation Interoperability

来源：评论

学校读者我要写书评

暂无评论

Efficient Domain Adaptation Using Individual Standardization in Bearing Fault Detection 29

Efficient Domain Adaptation Using Individual Standardization...

引用

29th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2024

作者： Renusch, Tarek Boschmann, Alexander Thies, Michael Bielefeld University Bielefeld Germany Weidmüller Interface GmbH & Co. Kg Detmold Germany Bielefeld University Cognitronics and Sensor Systems Group Bielefeld Germany

ISBN: (纸本)9798350361230

Condition monitoring of unseen machines or operating conditions has received increasing attention in recent years. This study presents a computationally efficient approach to domain adaptation inspired by individual standardization for different subjects employed in EEG emotion recognition. On unseen working conditions, the individual standardization approach increases model performance by 15% for ROC and by 34% for accuracy, compared to models without domain adaptation. The approach achieves competitive scores without changing any other model parameters. © 2024 IEEE.

关键词： Anomaly detection condition monitoring domain adaptation

来源：评论

学校读者我要写书评

暂无评论

TinyML optimization for activity classification on the resource-constrained body sensor BI-Vital

TinyML optimization for activity classification on the resou...

引用

International Workshop on Wearable and Implantable Body sensor Networks (BSN)

作者： Kevin Penner Felix Wittenfeld Bastian Steinhagen Marc Hesse Ulrich Rückert Cognitronics & Sensor Systems Bielefeld University Germany

Addressing the demand for scalable and efficient deployment of machine learning (ML) models on mobile devices and especially microcontrollers, this research introduces a hardware-in-the-loop (HIL) deployment setup within the producer-consumer software architecture of the BI-Vital, a chest-mounted body sensor designed by our research group. The sensor provides real-time monitoring of various physiological and environmental parameters, enhanced by the integration of tiny machine learning (TinyML). Leveraging the UCI-HAR dataset for Human Activity Recognition (HAR), this study focuses on optimizing ML models’ hyperparameters to balance inference time, memory, accuracy, and power consumption. An efficiency score E is proposed to assess models in this unique context. The results illustrate the trade-offs between the models: Decision Trees offer reduced power usage, Multilayer Perceptrons ensure high accuracy with minimal memory requirements, while Convolutional Neural Networks present limitations due to extended inference times. The results emphasize the potential of TinyML in wearable physiological monitoring, especially for optimizing models for resource-limited devices in real-world applications.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Resource efficient sub-VT level shifter circuit design using a hybrid topology in 28 nm 16

Resource efficient sub-VT level shifter circuit design using...

引用

2021 International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2021 and 16th Conference on PhD Research in Microelectronics and Electronics, PRIME 2021

作者： Chatterjee, Saikat Rückert, Ulrich Cognitronics and Sensor Systems Group CITEC Bielefeld University 33619 Germany

ISBN: (纸本)9783800755899

This paper presents a resource efficient level shifter circuit, which is capable of converting input voltages below subthreshold to above threshold voltages, making it suitable for ultra low power applications such as wireless sensor networks, biomedical implants, environmental sensors, to name a few. The proposed circuit topology has two stages. The first stage comprises of a Wilson current mirror, whereas the second stage has a cross coupled PMOS circuit. The two staged topology helps to overcome the challenges of deep nano process, when operated with ultra low input supply voltage. The circuit presented here, is implemented in 28 nm FDSOI technology from ST Microelectronics. The proposed level shifter is capable of converting an input voltage as low as 150 mV to 1 V. The static power consumption is measured to be 100 pW, when the circuit is operated with the minimum possible input supply and operational frequency of 500 kHz. © VDE VERLAG GMBH.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Bidirectional UWB Localization: A Review on an Elastic Positioning Scheme for GNSS-deprived Zones

arXiv

引用

arXiv 2023年

作者： Sang, Cung Lian Adams, Michael Hesse, Marc Rückert, Ulrich Cognitronics and Sensor Systems Group CITEC Bielefeld University Inspiration 1 Bielefeld33619 Germany

A bidirectional Ultra-Wideband (UWB) localization scheme is one of the three widely adopted design integration processes commonly used in time-based UWB positioning systems. The key property of bidirectional UWB localization is its ability to serve both navigation and tracking tasks within a single localization scheme on demand. Traditionally, navigation and tracking in wireless localization systems were treated as separate entities due to distinct applicable use-cases and methodological needs in each implementation process. Therefore, the ability to flexibly or elastically combine two unique positioning perspectives (navigation and tracking) within a single scheme can be regarded as a paradigm shift in the way location-based services are conventionally observed. This article reviews the mentioned bidirectional UWB localization from the perspective of a flexible and versatile positioning topology and highlights its potential in the field. In this regard, the article comprehensively describes the complete system model of the bidirectional UWB localization scheme using modular processes. It also discusses the demonstrative evaluation of two system integration processes and conducts a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis of the scheme. Furthermore, the prospect of the presented bidirectional localization scheme for achieving precise location estimation in 5G/6G wireless mobile networks, as well as in Wi-Fi fine-time measurement-based positioning systems was briefly discussed. © 2023, CC BY.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Evaluation of the Usage of Edge Computing and LoRa for the Control of Electric Vehicle Charging in the Low Voltage Grid

Evaluation of the Usage of Edge Computing and LoRa for the C...

引用

IEEE PES Conference on Innovative Smart Grid Technologies - Middle East (ISGT Middle East)

作者： Bastian Steinhagen Timon Jungh Marc Hesse Ulrich Rückert Lars Quakernack Michael Kelker Jens Haubrock Cognitronics and Sensor Systems Bielefeld University Bielefeld Germany Institute for Technical Energy Systems University of Applied Sciences Bielefeld Bielefeld Germany

The electrification of the mobility sector poses new challenges for grid operators. The simultaneous charging of a large number of electric vehicles could overload the grid. To solve this problem, sensors must be used to create observability of the low-voltage grid and to introduce control of the charging processes. The new sensors will generate large amounts of data containing personal information. For better and local handling of these data streams, edge computing approaches have been discussed. In this work, an edge computing system for the problem is presented. The structure of the software and the LoRa-based communication system is discussed in particular. Different sub-tasks are packaged in docker containers to get flexible and reusable software, that can be used for multiple use cases and hardware systems. The LoRa communication should lead to higher data security with it being decentralized and independent of the internet. With the system presented here, it is possible to determine the grid state using the sensors installed in the grid and to use this information to control the charging process of electric vehicles. The system was tested in a field test. The results show the general applicability of the approach and needed improvements for LoRa communication.

关键词： Low voltage Communication systems Process control Control systems Software Hardware sensors

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：