China's robot lifeboats and drones patrol Tian'e Lake

Robotic speedboats and drones have taken up life-guarding duty in a lake in China. Self-driving vehicles that can detect'moving targets' have started patrolling Tian'e Lake in Hefei, eastern China - an area where 15 people drowned in 2016. New images reveal how the autonomous boats are equipped with cameras, GPS and infrared and acoustic sensors, according to Chinese police officers. Robotic speedboats (pictured) and drones have taken up life-guarding duty in a lake in China. The self-driving vehicles able to detect'moving targets' Self-driving vehicles able to detect'moving targets' have started patrolling Tian'e Lake in Hefei, eastern China - an area where 15 people drowned in 2016.