Publications Search Results

Now showing 1 - 10 of 320
  • Publication
    Decentralized Brains: A Reference Implementation with Performance Evaluation
    ( 2021)
    Ramachandran Venkatapathy, A.K.
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    Gouda, A.
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    Ten Hompel, M.
    ;
    Paradiso, J.
    Decentralized Brains is a concept developed for multiple parallel control of decentralized collaborative swarms and systems. This systems communication paradigm comprises of local peer-to-peer control as well as the global state management which is required for large-scale collaborative systems. The scenarios vary from self-assembly protocols for aerospace structures to organizing a warehouse in a material-handling context where heterogeneous systems collaboratively accomplish a task. A reference implementation of the conceptualized protocol is developed and deployed in a 345 node test bed. A reliable broadcast communication primitive using synchronous broadcast is deployed in a dual-band System on Chip (SoC) micro-controller. The performance of the adopted synchronous broadcast for network-wide flooding and consensus is presented in this article. The firmware is based on the latest branch of Contiki-Open Source Operating System - Next Generation (Contiki-NG) to keep further open source implementations easier and modularized as per the ISO OSI networking model. Using the concepts of multi-hop mesh networking, network flooding using synchronous broadcasts from wireless sensor networks and multi-band radio controllers for cognitive radios, a hardware-software architecture is developed, deployed and evaluated. The synchronous broadcast has a success rate of more than 95% in network wide floods and the implicit network wide time synchronisation of less than 1 ms which is evaluated using experiments using a 345 node test bed is presented in this paper. The developed communication primitives for the target hardware CC1350 STK and the developed experiments are available at https://github.com/akrv/deBr.
  • Publication
    Social networked industry - An integrated approach
    (Fraunhofer IML, 2018)
    Tüllmann, Carina
    ;
    Ten Hompel, M.
    ;
    ; ;
    Ten Hompel, M.
    ;
    ;
    Social Networked Industry puts cooperation between humans and machines at the centre of the increasingly networked world of business and develops solutions to serve humans and benefit companies. This structural project aims to develop an integrated and socio-technical vision of digital logistics and production. It looks into many key questions of the networked economy and is seen as a shared task for businesses, politics and society.
  • Publication
    Efficient resource management based on non-functional requirements for sensor / actuator networks
    ( 2012)
    Timm, C.
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    Weichert, F.
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    Prasse, C.
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    Müller, H.
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    Ten Hompel, M.
    ;
    Marwedel, P.
    In this paper, a novel resource management approach is presented for publish-subscribe middleware for sensor/actuator networks. The resource management was designed with the possibility to add non-functional requirements at runtime to subscription messages. This approach allows utilizing service level agreements that can then be employed in order to guarantee a certain quality of service or to reduce the energy consumption of a sensor node in a sensor/actuator network. As an example, a sensor/actuator network for facility logistics system (a conveyor belt system) is evaluated with respect to energy consumption. This sensor/actuator network is mostly controlled by image processing based sensor nodes. It is shown that an adaptive processing interval for these sensor nodes can reduce the energy consumption of the entire network. The utilization of non-functional requirements allows the system to adapt -- after software development -- to context changes such as the extension of the conveyor belt systems topology.
  • Publication
    Sinn und Unsinn grüner Intralogistik
    ( 2011)
    Ten Hompel, M.
  • Publication
    Logistik und Gesellschaft
    ( 2011)
    Ten Hompel, M.
  • Publication
    Energy potential detection for autarkic smart object design in facility logistics
    ( 2011)
    Kamagaew, A.
    ;
    Kirks, T.
    ;
    Ten Hompel, M.
    In order to design energy autarkic Smart Objects powered by Micro-Energy-Harvesters a systematic detection of possible energy sources in the environment is needed. All possible energy sources can be detected and evaluated by the novel Micro-Energy-Harvesting potential detection system in facility logistics. The detection system consists of containers equipped with a probe and a evaluation system. The probes are connected in a Wireless Sensor Network and transfer the sensor data online to the evaluation system. Finally, the evaluation software analyzes the acquired sensor data and calculates the average power which could be harvested from the environment. With this information the user can identify the most promising energy source considering the level of efficiency of Micro-Energy-Harvesters.
  • Publication
    Sagen sie mal ... : Interview
    ( 2011)
    Ten Hompel, M.
  • Publication