Holger Linde

A service gateway for networked sensor systems

An emerging area in ubiquitous computing is networked sensor systems. The typical approach is to connect sensor-actuator devices using classic network infrastructures at a low level. These networks can serve as infrastructures to dynamically integrate, sensors and actuators into complex interactive systems while providing convenient services and interfaces to users. A prominent scenario for ubiquitous computing and ad hoc networking is an in-house environment using smart sensor system. Shaman, an extendable Java-based service gateway for networked sensor systems, integrates small network-attached sensor-actuator modules (SAMs) into heterogeneous, high-level networking communities. The system unburdens its connected SAMs by transferring functionality from the SAMs to the gateway.

Sindrion: a prototype system for low-power wireless control networks

We present a system architecture called Sindrion which allows us to create a cheap, energy-efficient, wireless control network to integrate small embedded sensors and actuators into one of the most established middleware platforms for distributed semantic services, namely universal plug and play (UPnP). To meet rigid constraints regarding cost and power consumption, complex data processing is sourced out from the sensor or actuator nodes to dedicated computing terminals, which establish a proxy in the UPnP network.