Demo: Brzzz – A Simplistic but Highly Useful Secondary Channel for WSNs
Ulf Kulau, Stephan Rottmann, Lars Christian Wolf · International Conference on Embedded Wireless Systems and Networks · 2017
Time synchronization of several nodes is important for many Wireless Sensor Network (WSN) algorithms, components, and application scenarios. Therefore, it would be very beneficial if a low-cost method for such synchronization was available. The same applies to low-power wakeup of nodes. Ideally, a simplistic and almost no-cost channel should be provided that can be utilized to face such challenges like synchronization and wakeup of nodes. In this demo paper we present the idea for such a method and show first results as well as a proof of concept setup. It is based on an electric pulse generated by, e.g., a regular electric fence which can be detected and utilized by usual ultra low-power micro controller units (MCUs) of a sensor node.