Demo abstract - Nemo: A high-fidelity noninvasive power meter system for wireless sensor networks

This demo abstract presents the design and the demonstration plan of Nemo - a practical in situ power metering system for wireless sensor networks. Nemo features a new circuit design called shunt resistor switch that can dynamically adjust the resistance of shunt resistors based on the current load. This allows Nemo to achieve a wide dynamic current range and high measurement accuracy. Nemo transmits real-time power measurement to the host node solely through the power line, by modulating the current load and the supply voltage. This feature leads to a noninvasive, plug & play design that allows Nemo to be easily installed on existing mote platforms without physical wiring or soldering. We describe the set-up of demonstration and outline our demonstration plan.