All posts tagged: sensor network

A year in the life of Lakeside Labs

Did you observe that lately more and more tech products and business processes have features of self-organization? Almost every major car maker has been testing self-driving vehicles and is now introducing them to the market. The industry is crazy about “industry 4.0”—which promises self-organizing production with humans, machines, and products collaborating to make decentralized decisions. These are just two examples for the ongoing trend toward more self-* properties in tech systems, e.g., self-configuration, self-optimization, and self-healing. Such paradigm shift from centralized, managed systems to decentralized, autonomous systems has been the core of Lakeside Labs — the small nonprofit research company that I have been co-leading as scientific director — since its foundation in 2008. Lakeside Labs is a hub for science and innovation in self-organizing networked systems. A space for inspiration, creativity, and multidisciplinarity. At the time of our foundation several people believed that research on self-organization is a pure academic “exercise” by professors without any practical application of benefit to industry. This attitude has changed in the course of 2015/16 when many companies have increasingly become interested in …

Z1 Sensor Nodes

Synchronization in sensor networks using time series analysis

Time synchronization is an essential building block in wireless sensor networks but is challenging due to low-precision oscillators and limited computational power of cheap devices. A novel synchronization solution for such scenarios is now proposed by Wasif Masood together with his advisors Christian Bettstetter and Jorge F. Schmidt from the University of Klagenfurt.

UWB sensor networks in airplanes

Modern airplanes are equipped with hundreds of embedded sensors and actuators necessary for structural health monitoring, aircraft control, and passenger and crew assistance. These devices are typically interconnected by wires. Using wireless connections instead of wires improves flexibility of installations and reduces the airplane’s weight. Researchers from Airbus Group Innovations have been working on this topic for several years. An ongoing joint project with the University of Klagenfurt and Lakeside Labs develops and tests such in-cabin networks with focus on their robustness against undesired interference.

Synchronization with phase rate correction

Synchronization algorithms based on the theory of pulse-coupled oscillators are evaluated on programmable radios. It is experimentally demonstrated that the stochastic nature of coupling is a key ingredient for convergence to synchrony. We propose a distributed algorithm for automatic phase rate equalization and show that synchronization precisions below one microsecond are possible.