A service robot"Coffee Master"is brewing tea for visitors. (Photo: Courtesy of ORION STAR) "Please wear the mask before entering the hall," a security inspection robot named 'Andi' reminds visitors while making its rounds outdoors. Meanwhile, a service robot named "Coffee Master" is brewing tea and coffee for visitors in the main hall. "Coffee is ready, please enjoy it now!" Once prepared, a delivery robot named "Lucki" will bring the freshly prepared drinks to visitors. This is a real-life scene which took place at Olympic-contracted hotels during the Beijing 2022 Winter Olympic Games. Thanks to the government support to promote industrial...