Robot excavator operates alone for 24 hours (24시간 혼자 작동하는 로봇 굴착기) Autonomous machine ‘key step’ on road to unmanned construction site equipment A robotic excavator has been tested in real-world construction scenarios, working continuously for more than 24 hours. The autonomous excavator system(AES) was developed by researchers from Baidu Research Robotics, Auto-Driving Lab(RAL) and the Universit..