Refine
Year of publication
- 2013 (205) (remove)
Document Type
- Article (unreviewed) (68)
- Conference Proceeding (57)
- Article (reviewed) (33)
- Book (16)
- Part of a Book (11)
- Contribution to a Periodical (5)
- Other (5)
- Patent (4)
- Periodical Part (3)
- Report (2)
- Letter to Editor (1)
Conference Type
- Konferenzartikel (42)
- Konferenz-Abstract (10)
- Sonstiges (3)
- Konferenz-Poster (2)
Language
- German (112)
- English (92)
- Other language (1)
Is part of the Bibliography
- yes (205) (remove)
Keywords
- Kommunikation (6)
- Bildung (5)
- Energieversorgung (5)
- Management (5)
- Dünnschichtchromatographie (4)
- Kardiale Resynchronisationstherapie (4)
- Schule (4)
- Biogas (3)
- Elektrokardiogramm (3)
- Fallstudie (3)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (83)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (54)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (54)
- INES - Institut für nachhaltige Energiesysteme (26)
- Fakultät Wirtschaft (W) (15)
- IUAS - Institute for Unmanned Aerial Systems (8)
- POIM - Peter Osypka Institute of Medical Engineering (5)
- Rektorat/Verwaltung (2)
- CRT - Campus Research & Transfer (1)
- Zentrale Einrichtungen (1)
Open Access
- Closed Access (63)
- Open Access (54)
- Bronze (9)
- Closed (3)
- Gold (1)
The communication system of a large-scale concentrator photovoltaic power plant is very challenging. Manufacturers are building power plants having thousands of sun tracking systems equipped with communication and distributed over a wide area. Research is necessary to build a scalable communication system enabling modern control strategies. This poster abstract describes the ongoing work on the development of a simulation model of such power plants in OMNeT++. The model uses the INET Framework to build a communication network based on Ethernet. First results and problems of timing and data transmission experiments are outlined. The model enables research on new communication and control approaches to improve functionality and efficiency of power plants based on concentrator photovoltaic technology.
After Image
(2013)
Betrugsmaschen werden wohl nie aussterben. Immer wieder wachsen neue Opfer nach, die unwissend, leichtgläubig oder schnell einzuschüchtern sind. Privatleute und Unternehmer werden dabei gleichermaßen Opfer von geschickten "Vertragsabschlusskonstruktionen", bei deren Durchsetzung zuweilen auch Juristen beteiligt sind. Dieser Beitrag befasst sich mit aktuellen Entwicklungen und Entscheidungen im deutschen Recht zu eben diesen Fällen.
A Localization System Using Inertial Measurement Units from Wireless Commercial Handheld Devices
(2013)
This paper describes a newly developed technology for the calculation of trajectories of mobile objects, which is based on commercially available sensors being integrated into modern mobile phones and other gadgets. First, a step counting technique was implemented. Second, a novel step length estimator is proposed. These two algorithms utilize the data from accelerometer sensor only. Third, the heading information was obtained using a gyroscope with complementary filter in quaternion form. The combined algorithm was implemented on a low-power ARM processor to provide the trajectory points relative to an initial point. The proposed technique was tested by 10 subjects, in different shoes with different paces. The dependence of the performance of the technology on the attaching point of the mobile device is weak. The proposed algorithms have better balance and estimation accuracy and depend in less degree on the variety in physical parameters of people in comparison with the existing techniques. In experiments inertial measurement units were mounted in different places, i.e. in the hand, in trousers or in T-shirt pockets. The return position error did not exceed 5% of the total travelled distance for all performed tests.
The IEEE802.11p standard describes a protocol for car-to-X and mainly for car-to-car-communication. It has found its place in hardware and firmware implementations and is currently tested in various field tests. In the research project Ko-TAG, which is part of the research initiative Ko-FAS, cooperative sensor technology is developed and its benefit for traffic safety applications is evaluated. A secondary radar principle based on communication signals enables localization of objects with simultaneous data transmission. It mainly concentrates on the detection of pedestrians and other vulnerable road users (VRU), but also supports pre crash safety applications. The Ko-TAG proposal enriches the current IEEE802.11p real-time characteristics needed for precise time-of-flight real-time localization. This contribution describes the development of a subsystem, which extends the functionality of IEEE802.11p and fits into the regulatory schemes. It discusses the approach for definition and verification of the protocol design, while maintaining the close coexistence with existing IEEE802.11p subsystems. System simulations were performed and hardware was implemented. The next step will be field measurements to verify the simulation results.