There’s no one around to hear us but that rock sitting over there. Wired UK reports:
At the annual AUSA Army meeting in Washington, DC, Lockheed Martin showcased developments in their surveillance technology called SPAN (Self-Powered Ad-hoc Network), a “covert, perpetually self-powered wireless sensor network” that can provide “unobtrusive, continuous surveillance” in units so small they can fit in a rock.
SPAN is a mesh network of self-organizing sensors that, when triggered, can cue a camera or an unmanned aerial vehicle to further study an area, or summon an engineer when a pipeline or bridge structure is in danger or fractured.
Lockheed touts the “field-and-forget” technology as providing maximum coverage at minimal costs, claiming that the sensors can remain in the field for years at a time without maintenance, powered by solar technology. The defense contractor is hoping to sell its spy rocks for surveillance, border protection, pipeline monitoring and bridge security, among other things.