TY  - JOUR
A1  - Wiegner, Jonas
A1  - Volker, Hanno
A1  - Mainz, Fabian
A1  - Backes, Andreas
A1  - Loeken, Michael
A1  - Hüning, Felix
T1  - Energy analysis of a wireless sensor node powered by a Wiegand sensor
JF  - Journal of Sensors and Sensor Systems (JSSS)
N2  - This article describes an Internet of things (IoT) sensing device with a wireless interface which is powered by the energy-harvesting method of the Wiegand effect. The Wiegand effect, in contrast to continuous sources like photovoltaic or thermal harvesters, provides small amounts of energy discontinuously in pulsed mode. To enable an energy-self-sufficient operation of the sensing device with this pulsed energy source, the output energy of the Wiegand generator is maximized. This energy is used to power up the system and to acquire and process data like position, temperature or other resistively measurable quantities as well as transmit these data via an ultra-low-power ultra-wideband (UWB) data transmitter. A proof-of-concept system was built to prove the feasibility of the approach. The energy consumption of the system during start-up was analysed, traced back in detail to the individual components, compared to the generated energy and processed to identify further optimization options. Based on the proof of concept, an application prototype was developed.
Y1  - 2023
U6  - http://dx.doi.org/10.5194/jsss-12-85-2023
SN  - 2194-878X
N1  - Corresponding author: Felix Hüning
VL  - 12
IS  - 1
SP  - 85
EP  - 92
PB  - Copernicus Publ.
CY  - Göttingen
ER  - 
TY  - CHAP
A1  - Grund, Raphael M.
A1  - Altherr, Lena
ED  - Reiff-Stephan, Jörg
ED  - Jäkel, Jens
ED  - Schwarz, André
T1  - Development of an open source energy disaggregation tool for the home automation platform Home Assistant
T2  - Tagungsband AALE 2023 : mit Automatisierung gegen den Klimawandel
N2  - In order to reduce energy consumption of homes, it is important to make transparent which devices consume how much energy. However, power consumption is often only monitored aggregated at the house energy meter. Disaggregating this power consumption into the contributions of individual devices can be achieved using Machine Learning. Our work aims at making state of the art disaggregation algorithms accessibe for users of the open source home automation platform Home Assistant.
KW  - Home Automation Platform
KW  - Home Assistant
KW  - Open Source
KW  - Machine Learning
KW  - Energy Disaggregation
Y1  - 2023
SN  - 978-3-910103-01-6
U6  - http://dx.doi.org/10.33968/2023.02
N1  - 19. AALE-Konferenz. Luxemburg, 08.03.-10.03.2023.
BTS Connected Buildings & Cities Luxemburg
(Tagungsband unter https://doi.org/10.33968/2023.01)
SP  - 11
EP  - 20
PB  - le-tex publishing services GmbH
CY  - Leipzig
ER  - 
TY  - PAT
A1  - Bragard, Michael
A1  - Hüning, Felix
A1  - Kowalewski, Paul
T1  - Vorrichtung zur Relativlagenbestimmung [Offenlegungschrift]
N2  - Die Erfindung betrifft eine Vorrichtung zur Bestimmung einer Relativlage zwischen einem feststehenden Teil und einem zu demselben in eine Bewegungsrichtung bewegbaren beweglichen Teil, wobei der feststehende Teil mit einem Wiegandsensor versehen ist, wobei der Wiegandsensor zwischen zwei gegenpolig zueinander ausgebildeten Permanentmagneten angeordnet ist und dass der bewegliche Teil eine Mehrzahl von beabstandet zueinander angeordneten Magnetisierungsstegen aus einem magnetisch leitenden Material aufweist, die in der Bewegungsrichtung zumindest eine gleich große Erstreckung aufweisen wie der Permanentmagnet, dass ein Abstand zwischen benachbarten Magnetisierungsstegen derart gewählt ist, dass in einer ersten Relativlage ein erster Permanentmagnet von einem der Magnetisierungsstege überdeckt ist und ein zweiter Permanentmagnet nicht von einem der Magnetisierungsstege überdeckt ist.
Y1  - 2023
N1  - Offenlegungschrift zu DE102022115350A1 2023.12.21
ER  - 
TY  - CHAP
A1  - Chircu, Alina
A1  - Czarnecki, Christian
A1  - Friedmann, Daniel
A1  - Pomaskow, Johanna
A1  - Sultanow, Eldar
T1  - Towards a Digital Twin of Society
T2  - Proceedings of the 56th Hawaii International Conference on System Sciences 2023
N2  - This paper describes the potential for developing a digital twin of society- a dynamic model that can be used to observe, analyze, and predict the evolution of various societal aspects. Such a digital twin can help governmental agencies and policy makers in interpreting trends, understanding challenges, and making decisions regarding investments or policies necessary to support societal development and ensure future prosperity. The paper reviews related work regarding the digital twin paradigm and its applications. The paper presents a motivating case study- an analysis of opportunities and challenges faced by the German federal employment agency, Bundesagentur f¨ur Arbeit (BA), proposes solutions using digital twins, and describes initial proofs of concept for such solutions.
KW  - Digital twin
KW  - Digital transformation
KW  - Prototype
KW  - Society
KW  - Stress testing
Y1  - 2023
SN  - 978-0-9981331-6-4
SP  - 6748
EP  - 6757
PB  - University of Hawai'i
CY  - Honolulu
ER  - 
TY  - CHAP
A1  - Nikolovski, Gjorgji
A1  - Limpert, Nicolas
A1  - Nessau, Hendrik
A1  - Reke, Michael
A1  - Ferrein, Alexander
T1  - Model-predictive control with parallelised optimisation for the navigation of autonomous mining vehicles
T2  - 2023 IEEE Intelligent Vehicles Symposium (IV)
N2  - The work in modern open-pit and underground mines requires the transportation of large amounts of resources between fixed points. The navigation to these fixed points is a repetitive task that can be automated. The challenge in automating the navigation of vehicles commonly used in mines is the systemic properties of such vehicles. Many mining vehicles, such as the one we have used in the research for this paper, use steering systems with an articulated joint bending the vehicle’s drive axis to change its course and a hydraulic drive system to actuate axial drive components or the movements of tippers if available. To address the difficulties of controlling such a vehicle, we present a model-predictive approach for controlling the vehicle. While the control optimisation based on a parallel error minimisation of the predicted state has already been established in the past, we provide insight into the design and implementation of an MPC for an articulated mining vehicle and show the results of real-world experiments in an open-pit mine environment.
KW  - Mpc
KW  - Control
KW  - Path-following
KW  - Navigation
KW  - Automation
Y1  - 2023
SN  - 979-8-3503-4691-6 (Online)
SN  - 979-8-3503-4692-3 (Print)
U6  - http://dx.doi.org/10.1109/IV55152.2023.10186806
N1  - IEEE Symposium on Intelligent Vehicle, 4.-7. June 2023, Anchorage, AK, USA.
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Stollenwerk, Dominik
A1  - Franzke, Till
A1  - Maurer, Florian
A1  - Reinkensmeier, Sebastian
A1  - Kim, Franken
A1  - Tambornino, Philipp
A1  - Haas, Florian
A1  - Rieke, Christian
A1  - Hermanuz, Andreas
A1  - Borchert, Jörg
A1  - Ritz, Thomas
A1  - Sander, Volker
ED  - Proff, Heike
T1  - Smarte Ladesäulen : Netz- und Marktdienliches öffentliches Laden
T2  - Towards the New Normal in Mobility : Technische und betriebswirtschaftliche Aspekte
N2  - Stand 01.01.2022 sind in Deutschland 618.460 elektrisch angetriebene KFZ zugelassen. Insgesamt sind derzeit 48.540.878 KFZ zugelassen, was einer Elektromobilitätsquote von ca. 1,2 % entspricht. Derzeit werden Elektromobile über Ladestationen oder Steckdosen mit dem Stromnetz verbunden und üblicherweise mit der vollen Ladekapazität des Anschlusses aufgeladen, bis das Batteriemanagementsystem des Fahrzeugs abhängig vom Ladezustand der Batterie die Ladeleistung reduziert.
Y1  - 2023
SN  - 978-3-658-39437-0 (Print)
SN  - 978-3-658-39438-7 (Online)
U6  - http://dx.doi.org/10.1007/978-3-658-39438-7_18
SP  - 287
EP  - 304
PB  - Springer Gabler
CY  - Wiesbaden
ER  - 
TY  - BOOK
A1  - Heuermann, Holger
T1  - Hochfrequenztechnik. Komponenten und Mess-, Funk-, RFID- sowie Lokalisierungssysteme
N2  - Dieses Lehr- und Fachbuch vermittelt anschaulich die Grundlagen der HF-Technik, gibt konkrete Beschreibungen für den Entwurf von linearen Komponenten aus Bauteilen wie auch Leitungen für High-Speed- und HF-Schaltungen. Dem Leser wird vermittelt, wie Bauteile modelliert und Schaltungen synthetisiert und optimiert werden. Mit Hilfe frei verfügbarer Simulationssoftware können GHz-Schaltungen selbst entwickelt werden. Viele Übungsbeispiele ermöglichen die Eigenkontrolle des Wissensstandes. Weiterhin werden komplexe nichtlineare Komponenten wie Hochfrequenzmischer, Oszillatoren und Synthesegeneratoren in ihrer Funktionalität dargestellt. Die neuen Mixed-Mode-Streuparameter sowie deren Leitungs- und Schaltungstechnik für Anwendungen der schnellen Digital- und der modernen HF-Technik sind ausführlich beschrieben. Es wird auf Systeme für folgende Bereiche eingegangen: Streuparametermesstechnik, verschiedene Funktechniken, UHF-RFID und Lokalisierung- und Ortung. Dem Leser wird somit ermöglicht, komplexe GHz-Schaltungen insbesondere mit Halbleiter-, SMD- und LTCC-Schaltungen zu entwickeln.
Y1  - 2023
SN  - 978-3-658-37825-7 (Print)
SN  - 978-3-658-37826-4 (eBook)
PB  - Springer Fachmedien
CY  - Wiesbaden
ET  - 4
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Zähl, Philipp M.
A1  - Wolf, Martin R.
A1  - Haase, Martin
ED  - Cooper, Kendra M.L.
ED  - Bucchiarone, Antonio
T1  - Applying leaderboards for quality improvement in software development projects
T2  - Software Engineering for Games in Serious Contexts
N2  - Software development projects often fail because of insufficient code quality. It is now well documented that the task of testing software, for example, is perceived as uninteresting and rather boring, leading to poor software quality and major challenges to software development companies. One promising approach to increase the motivation for considering software quality is the use of gamification. Initial research works already investigated the effects of gamification on software developers and come to promising. Nevertheless, a lack of results from field experiments exists, which motivates the chapter at hand. By conducting a gamification experiment with five student software projects and by interviewing the project members, the chapter provides insights into the changing programming behavior of information systems students when confronted with a leaderboard. The results reveal a motivational effect as well as a reduction of code smells.
KW  - Leaderboard
KW  - Gamification
KW  - Software testing
KW  - Software development
Y1  - 2023
SN  - 978-3-031-33337-8 (Print)
SN  - 978-3-031-33338-5 (Online)
U6  - http://dx.doi.org/10.1007/978-3-031-33338-5_11
SP  - 243
EP  - 263
PB  - Springer
CY  - Cham
ER  - 
TY  - BOOK
A1  - Heuermann, Holger
T1  - Mikrowellentechnik : Feldsimulation, nichtlineare Schaltungstechnik, Komponenten und Subsysteme, Plasmatechnik, Antennen und Ausbreitung
N2  - Das Lehrbuch behandelt alle Aspekte, die den aktuellen Stand der GHz-Technik betreffen. Das Buch behandelt die verschiedenen numerischen Feldsimulationsverfahren. Mit vielen modernen Themen.
KW  - Elektrotechnik
KW  - Hochfrequenztechnik
KW  - Feldsimulation
KW  - Plasmatechnik
KW  - Antennen
Y1  - 2023
SN  - 978-3-658-41286-9
U6  - http://dx.doi.org/10.1007/978-3-658-41287-6
PB  - Springer Vieweg
CY  - Wiesbaden
ET  - 2. Auflage
ER  - 
TY  - CHAP
A1  - Eichenbaum, Julian
A1  - Nikolovski, Gjorgji
A1  - Mülhens, Leon
A1  - Reke, Michael
A1  - Ferrein, Alexander
A1  - Scholl, Ingrid
T1  - Towards a lifelong mapping approach using Lanelet 2 for autonomous open-pit mine operations
T2  - 2023 IEEE 19th International Conference on Automation Science and Engineering (CASE)
N2  - Autonomous agents require rich environment models for fulfilling their missions. High-definition maps are a well-established map format which allows for representing semantic information besides the usual geometric information of the environment. These are, for instance, road shapes, road markings, traffic signs or barriers. The geometric resolution of HD maps can be as precise as of centimetre level. In this paper, we report on our approach of using HD maps as a map representation for autonomous load-haul-dump vehicles in open-pit mining operations. As the mine undergoes constant change, we also need to constantly update the map. Therefore, we follow a lifelong mapping approach for updating the HD maps based on camera-based object detection and GPS data. We show our mapping algorithm based on the Lanelet 2 map format and show our integration with the navigation stack of the Robot Operating System. We present experimental results on our lifelong mapping approach from a real open-pit mine.
Y1  - 2023
SN  - 979-8-3503-2069-5 (Online)
SN  - 979-8-3503-2070-1 (Print)
U6  - http://dx.doi.org/10.1109/CASE56687.2023.10260526
N1  - 19th International Conference on Automation Science and Engineering (CASE), 26-30 August 2023, Auckland, New Zealand.
PB  - IEEE
ER  -