Amidst the intense competition at the Super League match between the Yangzhou and Taizhou teams at the Yangzhou Sports Park Stadium, a unique sight caught the spectators' attention. Alongside the field stood an amphibious spherical robot, measuring 80 centimeters in diameter and weighing 190 kilograms. This marked the inaugural deployment of such equipment by Yangzhou Public Security for securing a large-scale event within the province. Equipped with L4-level autonomous navigation technology, the robot is capable of conducting autonomous patrols and preventive tasks, thereby bolstering event security with cutting-edge technology.