No batteries need to be replaced, ever, as the sensor is completely self-powered.
Need to know how much power that flows through a specific power cord, and see the information directly on your smartphone? That’s exactly what the Contiki-based winner of the IPSO 2013 challenge does. Just clip on the sensor on cord and see the data from anywhere in the world – the sensor sends the measurements wirelessly and securely across the Internet. Best of all: no batteries need to be replaced, ever, as the sensor is completely self-powered.
The wireless power sensor, developed by Redwire Consulting, Boston, MA, won the IPSO 2013 Challenge last week. Aside the fame and recognition, winning the competition also included a $10000 USD check.
The sensor that is clipped-on to an power cord measures the current flowing through the wire and sends the data wirelessly to a cloud server, hosted at lowpan.com. By using Contiki and its IPv6 stack, the sensor can send its readings directly to the cloud, without having any protocol translator boxes involved.