While the need for Real Time Location Systems (RTLS) to monitor assets in healthcare and manufacturing is spiking, the cost of the tags used in such system is still a break on adoption. Uwinloc, a French startup, the product of the Airbus incubator, has an answer, tags without batteries. Delivering sub-meter accuracy and dramatically reducing capital and maintenance costs this passive UWB technology promises to be profoundly disruptive. We talked to the CEO of Uwinloc, Eric Cariou, at IoT World in Santa Clara and he gave us a full rundown of what Uwinloc is doing.