A Software-Defined Channel Sounder for Industrial Environments with Fast Time Variance

Novel industrial wireless applications require wideband, real-time channel characterization due to complex multipath propagation. Rapid machine motion leads to fast time variance of the channel's reflective behavior, which must be captured for radio channel characterization. Additionally, inhomogeneous radio channels demand highly flexible measurements. Existing approaches for radio channel measurements either lack flexibility or wide-band, real-time performance with fast time variance. In this paper, we propose a correlative channel sounding approach utilizing a software-defined architecture. The approach enables real-time, wide-band measurements with fast time variance immune to active interference. The desired performance is validated with a demanding industrial application example.Comment: Submitted to the 15th International Symposium on Wireless Communication Systems (ISWCS 2018

Real-Time FPGA-Based Systems to Remote Monitoring

Some industrial and laboratory applications such as control, monitoring, test and measurements, and automation require real-time systems for their development. Embedded systems for acquisition and processing often require the participation of the embedded operating system and therefore are necessary techniques that can accelerate software execution. The latest field-programmable gate arrays’ (FPGA) technology has blurred the distinction between hardware and software with embedded processors that allow the development of Systems-on-a-Chip (SoC) running on operating systems. The widespread adoption of wireless technologies such as Bluetooth, ZigBee, and Wi-Fi in the last years has facilitated the use of these technologies to the development of real-time monitoring applications that combined with FPGA devices which has the advantages of low cost, flexibility, and scalability as compared with other commercial systems

Computed tomography as a tool for tolerance verification of industrial parts

AbstractComputed tomography (CT) is becoming an important technology for industrial applications, enabling fast and accurate control of manufactured parts. In only a few minutes, a complete 3D model of a part may be obtained, allowing measurements of external and internal features. This paper presents results of tolerance verification of a plastic housing for an insulin pen manufactured by Novo Nordisk A/S. Calculation of measurement uncertainties was taken into account in decision making regarding the specified tolerance limits. Variables in terms of CT systems, data sets, and evaluation software are considered in this study

WCET Computation of Safety-Critical Avionics Programs: Challenges, Achievements and Perspectives

Time-critical avionics software products must compute their output in due time. If it is not the case, the safety of the avionics systems to which they belong might be affected. Consequently, the Worst Case Excution Time of the tasks of such programs must be computed safely, i.e., they must not be under-estimated. Since computing the exact WCET of a real-size software product task is not possible (undecidability), "safe WCET" means over-estimated WCET. Here we have an industrial issue in the sense that too over-estimating the WCET leads to a waste of CPU power. Hence, the computation a safe and precise WCET is the big challenge. Solutions to that problem cannot only rely on the technique for computing the WCET. Indeed, both hardware and software must be designed to be as deterministic as possible. For its Flight controls software products, Airbus has always been applying these principles but, since the A380, the use of more complex processors required to move from a technique based on measurements to a new one based on static analysis by Abstract Interpretation. Another kind of avionics applications are the so-called High-performance avionics software products, which are significantly less affected by - rare - delays in the computation of their outputs. In this case, the need for a "safe WCET" is less strong, hence opening the door to different other ways of computing it. In this context, the aim of the talk is to present the challenge of computing WCET in Airbus\u27s industrial context, the achievements in this field and the evocation of some trends and perspectives

Rechnergesteuerte Leistungsvermögensanalyse mit ABBA in der beruflichen Rehabilitation (Computer-controlled ana-lysis of capability with ABBA in occupational rehabilitation)

"ABBA, job inspection and strain analysis (ArbeitsplatzBegehungs- und BelastungsAnalyse), is a new software-supported expert system (PARADOX database with DELPHI programming system for Windows applications) based on the Ergonomic investigation system for the analysis of activities (Arbeitswissenschaftliches Erhebungssystem zur Tätigkeitsanalyse (AET)) which has been established for over 20 years. This new system makes it possible to compare job requirements with performance possibilities of disabled people in an objective, reliable and valid way and to interpret the results of occupational choice and work trials systematically and to evaluate them. Ergonomic information and the possibility of implementing measurements based on industrial physiology and industrial medicine improve diagnosis, occupational support, the arrangement of a working environment suitable for the disabled as well as placing, targeting these aspects at occupational integration." (Author's abstract, IAB-Doku) ((en))Behinderte, Leistungsfähigkeit - Messung, EDV-Anwendung, Anforderungsprofil, berufliche Rehabilitation, Berufsfindung, Arbeitserprobung