Miniature Tracking Device has self-charging design.

Roke Manor Research Ltd    Hampshire,
May 30, 2013 When shaken, AGITATE tag generates radio signal that can be tracked through walls and up to 20 km in built-up areas (estimated 200 km in free space). Product does not require any battery; shaking converts mechanical energy into radio pulses. Uses include monitoring and regulating use of lifejackets, remote sensing for flood monitoring and alerts, remote sensing of motion and vibration fault detection in harsh environments, security tags on goods, and keeping track of patients.

Threat Monitoring System aids autonomous vehicle missions.

Roke Manor Research Ltd    Hampshire,
Jul 20, 2012 Emulating mammal's conditioned fear-response mechanism, STARTLE System uses combination of artificial neural network and diagnostic expert systems to continually monitor and assess potential threats. System provides situational awareness and early threat warning to both autonomous vehicle and its remote operator. Making use of existing hardware, STARTLE intelligently processes information from multiple on-board sensors, cueing systems to assess and confirm potential threats.