Traffic analyzer front-end for complex IEEE 802.15.4 applications

The last years have seen a proliferation of the use of wireless communication in different applications. The systems range from simple 2-nodes communication to complex mesh systems capable of covering vast areas. Debugging such systems, especially large mesh networks can be a daunting task. There are few tools that can help. In this paper, we present and discuss the results of a monitoring tool we are developing. The system is modular, based on a deterministic multicore processor. In the proof of concept, each monitoring probe is equipped with several IEEE802.15.4 transceivers, making it possible to monitor several wireless channels at the same time and to implement a mitigation of diversity issues in the monitoring. The transceivers could also be used to generate test frames for the system under test if necessary. The parallel architecture makes it easy to add new modules and to synchronize the sniffers with the most appropriate methods. In this phase of the work, we used DCF77 to synchronize the nodes. The collected data is sent to a common host for analysis with appropriate tools. The results show that the architecture is appropriate and that synchronization should be improved

Handgriffeinheit

Auch veröffentlicht unter CH715358A2, CH715402A2patent submitter:Zirbel Bike GmbH, BielEine Handgriffeinheit umfasst einen Handgriff, welcher vorzugsweise in einer bestimmungsgemässen Verwendung vom Verwender unter erhöhter körperlicher Aktivität gehalten und/oder betätigt wird, insbesondere eine Handgriffeinheit eines Sportgeräts und/oder eines Werkzeugs, wobei die Handgriffeinheit einen thermoelektrischen Generator umfasst, welcher in wärmeleitender Verbindung mit dem Handgriff steht, womit elektrische Energie aus einer Körperwärme eines den Handgriff ergreifenden Verwenders erzeugbar ist, um einen elektrischen Verbraucher mit elektrischer Energie des thermoelektrischen Generators zu versorgen