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Performance Investigation for IEEE 802.15.4z-compliant SiP-assisted Ranging 37

Performance Investigation for IEEE 802.15.4z-compliant SiP-a...

引用

37th IEEE International system-on-Chip Conference, SOCC 2024

作者： Kaden, Janik Markert, Erik Heinkel, Ulrich Chemnitz University of Technology Chair for Circuit and System Design Chemnitz Germany

ISBN: (纸本)9798350377569

In recent years, ultra-wideband (UWB) has emerged as a preferred choice for precise wireless indoor localization and navigation systems. The inherently better ranging performance and stronger resistance to multipath fading compared to previously used technologies have led to increased research on the performance of UWB devices. However, regulatory requirements on transmission power constrain UWB communication range. This paper studies the impact of different PHY settings of an 802.15.4z-compliant SiP, the Qorvo DWM3000, in a comprehensive set of real-world measurements. Furthermore, we focus on range maximization and high reliability when power consumption or air utilization is not constricted. Results show that with a commercial off-the-shelf UWB SiP, a maximal reliable range of 125 meters with an overall mean accuracy of 25.1 cm can be achieved while staying within the regulatory limits. © 2024 IEEE.

关键词： Ultra-wideband (UWB)

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Performance Investigation for IEEE 802.15.4z-compliant SiP-assisted Ranging

Performance Investigation for IEEE 802.15.4z-compliant SiP-a...

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IEEE International SOC Conference

作者： Janik Kaden Erik Markert Ulrich Heinkel Chair for Circuit and System Design Chemnitz University of Technology Chemnitz Germany

ISBN: (数字)9798350377569

ISBN: (纸本)9798350377576

关键词： IEEE 802.15 Standard Performance evaluation Wireless communication Resistance Power demand Navigation Ultra wideband communication Distance measurement system-on-chip Reliability

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Position estimation with Bayesian filters by using 3-dimensional environment models

Position estimation with Bayesian filters by using 3-dimensi...

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Workshop on Positioning, Navigation and Communication, WPNC

作者： Christian Schott Murali Padmanabha Marko Rößler Daniel Froß Ulrich Heinkel Faculty Electrical Engineering and Information Technology Chair of Circuit and System Design Chemnitz Saxony Germany University of Technology Chemnitz Faculty Electrical Engineering and Information Technology Chair of Circuit and System Design Chemnitz Saxony Germany

This paper presents a method for including spatial environment information into a Particle Filter for position estimation. The proposed method is targeted for indoor and outdoor scenarios where distance measurements to static nodes of known position are basis for the localization. Such scenarios are likely in industrial and logistic applications where maps or 3-dimensional model data of the relevant playground are available. Those environmental information supplement the noisy measurements of positioning systems and could be directly evaluated by the position estimator. Two approaches, Axis Aligned Bounding Boxes (AABB) and point cloud have been evaluated in combination with a Particle Filter estimator in this work on the base of a high level simulation environment. Different use cases with varying motion trails have been simulated. The results show that including spatial environment data reduces the position error and thus positively influences the estimation quality. With this knowledge a previously published hardware implementation of a Particle Filter has been enhanced by spatial information analysis on register transfer level using an efficient pipeline structure. The resulting implementation maps on a ZYNQ 7000 SoC hardware/software platform that provides an accelerated low power solution for the position estimation.

关键词： Three-dimensional displays Estimation Solid modeling Conferences Sensors Bayes methods Particle filters

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ZYNQ flexible platform for object recognition & tracking

ZYNQ flexible platform for object recognition & tracking

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Workshop on Positioning, Navigation and Communication, WPNC

作者： Murali Padmanabha Christian Schott Marko Rößler Daniel Kriesten Ulrich Heinkel Faculty Electrical Engineering and Information Technology University of Technology Chemnitz Chemnitz Saxony Germany University of Technology Chemnitz Faculty Electrical Engineering and Information Technology Chair of Circuit and System Design Chemnitz Saxony Germany

This paper presents the use of ZYNQ-7000 All Programmable SoC for flexible object recognition applications targeted for indoor mapping and localization. The architecture of the system is designed to provide the necessary infrastructure to support hardware software partitioning. Vivado HLS OpenCV libraries are used to synthesize the hardware for accelerating parts of the algorithms. Idea of identifying door handles serves as an opportunity to find paths for further navigation. Therefore, door handles and knobs served as target objects to be located in an image scene of the university corridor as a sample use case. The algorithm which performs object detection is implemented as a image data processing chain consisting of Sobel filter unit, Hough Line Transform unit and Oriented FAST and Rotated BRIEF unit. The Hough Line Transform extracts the lines from image scene to further locate the region of interest, while Oriented FAST and Rotated BRIEF extracts the image feature. Partitioning of algorithm is performed iteratively by moving the computation intensive tasks to the Programmable Logic and executing the rest of the algorithm on Processing system to achieve a balance between available hardware resource and acceptable frame rates. The resulting system positively identifies the object of interest at acceptable frame rates and with optimal system resource utilization.

关键词： Hardware Feature extraction Software algorithms Algorithm design and analysis Software Libraries Partitioning algorithms

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system-level-model development of an SWCNT based piezoresistive sensor in VHDL-AMS

System-level-model development of an SWCNT based piezoresist...

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Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-systems EuroSimE

作者： Vladimir Kolchuzhin Jan Mehner Erik Markert Ulrich Heinkel Christian Wagner Jörg Schuster Thomas Gessner Chair of Microsystems and Precision Engineering Chair for Circuit and System Design Center for Microtechnologies (zfM) Fraunhofer Institute for Electronic Nano System (EN-AS) Chemnitz Germany

This article deals with the model development for a single walled carbon nanotube (SWCNT) piezoresistive sensor at system level design. The framework of VHDL-AMS is used for implementation and simulation, consisting of compact submodels that describe components performing heterogeneous functions. The SWCNT mechanical and electrical compact models presented in the article are based on the analytical model, lumped element model and the simulation results based on density functional theory (DFT). The macromodels of the MEMS are built using a reduced order modeling technique based on finite element simulations. This article presents and discusses the most important aspects of the development of system models and essential model parameters.

关键词： Abstracts Electrostatics Atomic measurements Deformable models Gold Couplings Conductors

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Localization of objects using passive RFID technology

Localization of objects using passive RFID technology

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IEEE SSD International Multi-Conference on systems, Signals and Devices

作者： Marten Wegener Daniel Froß Marko Rößler Ulrich Heinkel Matthias Adler Chair for Circuit and System Design Chemnitz University of Technology Chemnitz Germany SIGMA Chemnitz GmbH Chemnitz Germany

This paper presents a localization method based on passive Radio Frequency Identification (RFID). Information that is acquired during the radio information transmission between a tag and the reader is analyzed for this purpose. Resulting parameters allow a statement of the distance between the communication partners. Using several readers with known positions and a motion model of the tags an estimation of the three dimensional position of the tags is possible. For that purpose it is necessary to compensate failures and defects in the radio channel caused by the environment and the object that carries a tag. Our approach uses a Bayes-like filter approach. Our prototype provides positioning accuracy in the decimeter range.

关键词： Q measurement

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PDU test lab — Reliability evaluation of power distribution units

PDU test lab — Reliability evaluation of power distribution...

引用

International Conference on Power Engineering, Energy and Electrical Drives, POWERENG

作者： Daniel Froß Marko Rößler Christian Pätz Ulrich Heinkel Technische Universitat Chemnitz Chemnitz Sachsen DE Chair for Circuit and System Design Chemnitz University of Technology Chemnitz Germany

In this paper we present a test lab for the reliability evaluation of power distribution units. The presence of a dependable power distribution network is a fundamental prerequisite in the context of datacenter reliability. In addition to uninterruptable power supplies or transfer switches intelligent power distribution units are one of the critical components in the backend power path. Our mission is to investigate and test different PDU implementations with respect to their reliability as a trade-off between effectiveness and self energy consumption.

关键词： Reliability Network interfaces Energy consumption Switches Power distribution Monitoring Inspection

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Centralized spring-based localization algorithm for large scale wireless sensor networks

Centralized spring-based localization algorithm for large sc...

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IEEE SSD International Multi-Conference on systems, Signals and Devices

作者： Anders Johansson Christian Roßberg Ulrich Heinkel Chair for Circuit and System Design Chemnitz University of Technology Chemnitz Germany Technische Universitat Chemnitz Chemnitz Sachsen DE

ISBN: (纸本)9781467315906

This paper presents an approach to the problem of localization in wireless sensor networks. For many applications, it is essential to know the absolute position of the network nodes. Due to the large number of nodes, it is not practicable assigning coordinates manually or equipping many or all nodes with GPS receivers. In our approach only a few anchor nodes with known position are used. The unknown nodes obtain their position by evaluating average hop distances between anchors and received signal strength. The proposed algorithm is centralized and based on a spring model.

关键词： Springs Wireless sensor networks Measurement Robot sensing systems Monitoring Global Positioning system Hardware

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Expedient usage of wakeup receivers in wireless network applications

Expedient usage of wakeup receivers in wireless network appl...

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Workshop on Intelligent Solutions in Embedded systems

作者： Robert Paulo Per Anders Johansson Daniel Kriesten Ulrich Heinkel Technical University Chemnitz Chair for Circuit and System Design Chemnitz Germany

Wakeup concepts for wireless sensor networks are an upcoming field of interest for many applications. But when is it useful to attach a wakeup receiver or when shall approved mechanisms like duty cycle communication be used? In this paper a closer look on power consumption is taken to compare wakeup concept against duty cycle concept.

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10 GS/s 8-bit bipolar THA in SiGe technology

10 GS/s 8-bit bipolar THA in SiGe technology

引用

Norchip

作者： Yevgen Borokhovych J. Christoph Scheytt Chair of System Design IHP/BTU Joint Lab Frankfurt Germany Department of Circuit Design IHP Frankfurt Germany

design and measurement of the bipolar Track-and-Hold Amplifier is described in this paper. The circuit works at the sample rate of 10 GS/s and has linearity of 8-bit at input signal of 3 GHz. Based on the open-loop switched emitter follower architecture, the circuit implies several techniques to achieve 8-bit performance at GHz range. An input buffer and switch were modified to decrease errors and increase the speed.

关键词： Switches Fabrication

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