A refueling robot works at Sinopec's Changsha Binjiang Comprehensive refueling station in Changsha, capital of China, Jan. 3, 2019. After the driver makes an appointment through the Sinopec "Easy fuel" App, the vehicle is parked in the designated area, and the refueling robot will locate the vehicle fuel tank cap through visual recognition technology, and autonomously complete a series of operations such as opening the cap, refueling, and closing the cap, truly realizing unmanned automatic refueling. This is Sinopec's first integrated intelligent refueling station that integrates robotic refueling and digital twin management.