000829550 001__ 829550
000829550 005__ 20250129092438.0
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000829550 020__ $$a978-3-89336-519-7
000829550 037__ $$aFZJ-2017-03235
000829550 041__ $$aGerman
000829550 041__ $$aGerman
000829550 1001_ $$0P:(DE-Juel1)133936$$aSchlösser, Mario$$b0$$eCorresponding author$$gmale$$ufzj
000829550 1112_ $$cJülich$$wGermany
000829550 245__ $$aImplementierung eines Funk-Protokolls (IEEE 802.15.4) und Entwicklung eines adaptiven Zeitsynchronisationsverfahrens für ein Netzwerk intelligenter und autarker Sensoren
000829550 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2008
000829550 300__ $$a77 S.
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000829550 4900_ $$aSchriftenreihen des Forschungszentrums Jülich. Reihe Gesundheit / Health$$v5
000829550 520__ $$aImplementation of a RF-Protocol (IEEE 802.15.4) and Development of an Adaptive Time Synchronisation Method for a Network of Intelligent and Autarkic Sensors Understanding the extremely precise auditory based 3D-orientation of Barn Owls is an outstanding challenge in neurophysiological research. For this purpose as well as for the instrumentation of neurological rehabilitation and sleep research our miniaturized intelligent Sensor and Actuator Network for Life science Applications (iSANLA) will form a solid foundation providing sample rates up to 16 kHz. Based on the IEEE 802.15.4 wireless standard a compact communication protocol as part of the so called intelligent Network Operating Device (iNODE) has been developed and implemented to run on the ultra low power microcontroller platform MSP430 from Texas Instruments. Embedded into the preliminary developed frame based operating system (FRABOS) this protocol allows bidirectional communication between each sensor node and a PC within a star topology. Therefore only 7kByte flash of the MCU resources are needed to achieve a net data rate of 141kBit/s. A time synchronization protocol based on the Reference Broadcast Synchronization (RBS) has been developed in order to merge the acquired data of the distributed iNODE preserving causality. Hence the time synchronous start of the data acquisition inside a network of multiple sensors with a precision better than the highest sample rate is a must . The development of this adaptive time synchronization protocol ensures synchronous measurement start and a frame based duty cycle adjustment with an appropriate precision proven by a jitter below 2ps. Overall the implemented Ultra Small Stack communication protocol creates an avenue for live-streaming 8 kHz measurements with up to 16Bit accuracy and provides enormous potential for future bio medical and neurophysiological applications.
000829550 536__ $$0G:(DE-HGF)POF3-344$$a344 - Clinical and Health Care Research (POF3-344)$$cPOF3-344$$fPOF III$$x0
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000829550 65027 $$0V:(DE-MLZ)SciArea-220$$2V:(DE-HGF)$$aInstrument and Method Development$$x1
000829550 8564_ $$uhttps://juser.fz-juelich.de/record/829550/files/Gesundheit_05.pdf$$yOpenAccess
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