Computers > Hardware > Download, free read

Drahtlose ZigBee-Netzwerke by Markus Krauße download in pdf, ePub, iPad

Weiter wird mit

All implementations were thoroughly tested in experiments, using the suggested testing methods. Weiter wird mit Hilfe des Modells gezeigt, dass die Synchronisationsgenauigkeit vorzugsweise als Unsicherheit der Zeitinformation angegeben werden sollte. These methods can be applied to other data acquisition systems without changes, thus enabling direct comparisons. This way, not only the contribution of the synchronization to the overall measurement uncertainty can be assessed, but also the synchronization accuracy required for an application can be estimated. With the help of this model it is shown, that synchronization accuracy should best be expressed as uncertainty of the acquired timing information.

All implementations were

Alle Implementierungen wurden mit den vorgeschlagenen Testverfahren untersucht. It is shown that the reactive approach can also be used to efficiently implement synchronous angular sampling, i. So far research has been focused on synchronizing the clocks of the nodes, largely neglecting the implications for the actual measurement results. Furthermore, it was shown that the effective use of fixed-point arithmetic enables synchronous angular sampling in real-time during a streaming measurement. Synchronizing the data acquisition of the nodes is a key enabling factor for this.

This way it was revealed, that a system's interrupt handling procedures may have a strong influence on the data acquisition. Hierdurch konnte gezeigt werden, dass die Interrupt-Bearbeitung der Sensorknoten entscheidenden Einfluss auf die Messdatenerfassung hat. Already they are beginning to be used in many applications not only in the scientific and industrial domains. Ausgehend von den durch die Unsicherheitsbetrachtung gewonnenen Erkenntnissen werden ein proaktiver und ein reaktiver Ansatz zur synchronen Datenaufnahme entwickelt.