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Projects
AVS Extrem
The German Federal Criminal Police Office (BKA) declares in 2006 a 50-percent increase of the thefts of construction sites. The financial loss for landlords and other owners of construction site equipment was estimated with approximately 90 million Euro. Therefore a flexible, spontaneously installable, economical and interface-open monitoring network is necessary. In this project the Freie Universität of Berlin investigates the possibility to establish distributed event detection in wireless sensor networks by deploying a fence monitoring system as an example.
With the help of a distributed and embedded system, events are to be recognized and evaluated. The challenges of the system are: the wireless communication between the sensor nodes, the event recognition in the sensors data and the design of distributed algorithms for adjustment of the detected pattern. The wireless sensor network (WSN) of AVS-Extrem is a self-configuring and self-healing. It is able to supervise the valuable goods existing on construction sites and to differentiate events from each other.
DES Testbed
With the DES testbed (Distributed Embedded Systems) we aspire to create a hybrid wireless testbed setup for long-term observations. In a first setup phase at least 50 wireless mesh routers equipped with three or more IEEE 802.11b/g NICs and an equal amount of wireless sensor nodes will be deployed. 100 nodes are planned in the final setup phase. This will enable us do experiments using non-simplistic topologies. The continuous runtime of single experiments is targeted at up to several months. The DES testbed is an essential part of further ongoing projects at Freie Universität Berlin such as OPNEX and WISEBED. A website for the DES testbed is available here.
Environmental Monitoring
In natural sciences, research often relies on extensive manual investigation. Such methods can be error-prone and obviously don’t scale well. The development of autonomous data acquisition systems based on Wireless Sensor Networks (WSNs) research has provides a method to significantly reduce the amount manual of work during field studies. It allows addressing of scientific questions that were previously infeasible.
Our research group gathered comprehensive experience in creating robust WSN based systems for environmental monitoring. In the recent years we worked in close collaboration with researchers from natural science area and together, we built and deployed a number of WSNs that run autonomously under real-world conditions.
FACTS
Rules rule the idea of software development with FACTS: Instead of writing long imperative programs for tasking the sensor nodes of a network, a few, concise rules may let you do the same things while spending less time! Check out the FACTS homepage for more facts.FeuerWhere
Distributed tracking of fire fighters.
In cooperation with Berliner Feuerwehr, Nanotron GmbH, MSA Auer GmbH, IHP GmbH and others. [more]
Flow
Flow is a Software Factory for Wireless Sensors Networks (WSNs). Software Factories are model-driven development environments. Flow allows modeling of applications for WSNs with the help of a visual editor. Flow focuses on data-centric programming. The key component is the concept of a data flow that can be used to describe how data should be processed. Domain experts use a visual Domain-Specific Language (DSL) to define data flows and thus specify the behavior of nodes in the network. With Flow domain experts no longer need to develop or maintain native application code.
FOES
As the first nationwide project of its kind, the Research Forum of Public Safety and Security, FOES, is being set up at Freie Universität Berlin. Its objective is to facilitate the permanent exchange of needs, ideas, and suggestions between national and international security research and industry, associations, public institutions, public authorities, and organizations. A key objective is to bring together previous work on public safety from different disciplines to obtain inter- and transdisciplinary research results that should then be the basis for recommendations for action in politics, industry, and organizations. Further information.
( Jochen Schiller )geocrowd
"GEOGROWD - Creating a Geospatial Knowledge World" aims at establishing a fertile research environment by means of a training network that will promote the GeoWeb 2.0 vision and advance the state of the art in collecting, storing, analyzing, processing, reconciling, and making large amounts of semantically rich user-generated geospatial information available on the Web. Specifically, activities will focus on (i) exploiting user-contributed geospatial data, (ii) Web-geodata management and (iii) efficient means for data collection and dissemination, e.g., mobile computing. Further information.
( Jochen Schiller )G-Mesh-Lab
This one of the projects that has been founded for the second phase of the G-Lab project (http://www.german-lab.de). The focus of the project is on architectures of heterogeneous wireless networks, like wireless mesh networks, wireless sensor networks, and their role in the Future Internet. Project Page.mPOLIKS
The Freie Universität Berlin and the Berlin Police Department are cooperation partners since 2006. Within this cooperation we are evaluating secure approaches for mobile data access to police records. Further information.
OPNEX
OPNEX delivers a first principles approach to the design of architectures and protocols for multi-hop wireless networks. Systems and optimization theory is used as the foundation for algorithms that provably achieve full transport capacity of wireless systems. Subsequently a plan for converting the algorithms termed in abstract network models to protocols and architectures in practical wireless systems is given. Finally a validation methodology through experimental protocol evaluation in real network test-beds is proposed. Further information.
ScatterClipse
ScatterClipse is a model-driven Eclipse-based tool chain for developing, testing and prototyping Wireless Sensor Networks. It consists of tools for application development, WSN management, WSN visualization and analysis, and application testing.Further informationScatterWeb
ScatterWeb is a platform for self-configuring wireless sensor networks that started as research project and that already led to an awarded spin-off company.
More information to the research platform can be found here: Scatterweb Homepage
SKIMS
The objective of SKIMS lies in the design, development and implementation of a cross-layer security system for mobile devices. Detection mechanisms as well as a proactive and reactive defense of attacks are core components of this project.
The vision of a digital immune system will be demonstrated in a proof of concept in terms of an extended security application for mobile phones. Analog to a traffic light system, the mobile signals the current level of risk to the user and relaxes the status wherever applicable. This transparency allows users to regain trust that was lost previously in insecure environments. Further information.
SPi
Taking an application-centric view on ad hoc networks, cooperation between devices is structured by application-level clients and servers, i.e., certain nodes requesting services provided by other nodes. This gives rise to the question in how far the performance of the network can be increased by intelligently selecting which nodes are to host a particular service. The process of identifying the appropriate nodes to act as servers is referred to as service placement and invesigated using our SPi service placement framework. More information is available on the SPi homepage.TCP-Proxy
TCP shall be used over a wireless link with very low data rate and high latency. The TCP-Proxy adapts TCP to the wireless medium while remaining transparent for the communicating hosts. Further InformationVitalzeichen
The advances in development of pervasive technologies nowadays enable a seamless integration of smart health monitoring into everyday life. Small devices of roughly the size of a watch which are capable to detect critical health conditions of the person wearing it and to communicate this to a doctor or nurse in charge over a radio interface literally untie the bearer from static monitoring entities. Especially the elderly or patients still in an unstable health condition can thus benefit from a greater degree of freedom without trading this freedom for safety.
In cooperation with the SMT Potsdam GmbH and the Spicher GmbH this project aims at developing a prototype system that enables low-cost monitoring and tracking integrated into standard building automation.
VIVE
| The typical task of Wireless Sensor Networks is to gather environmental data with the aim to detect application-relevant events. Such events cover a range of security relevant events from trespassing of restricted areas via critical frequencies arising on bridges through to a harmful movement during a physical rehabilitation. During observation, sensor nodes are collecting a huge amount of data that need to be transferred to a central processor. This procedure is very energy consuming and shortens the lifetime of the sensor network. | ![vive 2d_2 [Konvertiert]](VIVE/vive_2d_2__Konvertiert_.png) |
VIVE validates a distributed event detection that provides a pattern matching based framework for wireless sensor networks. Groups of sensor nodes share information in a cooperative way which allows to evaluate events autonomously within the network. VIVE investigates new applications that benefit of an in-network evaluation of predefined events. The wireless Compounds of sensor nodes are sharing information in a cooperative way which allows to evaluate events autonomously within the network. Transferred data is reduced and evaluated within the network which allows short response time on events. As a result, the lifetime of the whole network will be enhanced.
( Prof. Dr. Jochen Schiller )Wi-Mesh-Lab
The Wi-Mesh-Lab project is focused on the extension of the DES-Testbed and development of domain specific software for application in wireless networks. The development of industrial-grade products based on scientic research is a central topic. Wi-Mesh-Lab tries to provide solutions for the Internet of the future that will consist of wired and wireless networks. Further information.
WISEBED
The aim of this project is to provide a multi-level infrastructure of interconnected testbeds of large-scale wireless sensor networks for research purposes, pursuing an interdisciplinary approach that integrates the aspects of hardware, software, algorithms, and data. This will demonstrate how heterogeneous small-scale devices and testbeds can be brought together to form well-organized, large-scale structures, rather than just some large network; it will allow research not only at a much larger scale, but also in different quality, due to heterogeneous structure and the ability to deal with dynamic scenarios, both in membership and location. Further information.
