Smart security measures are becoming more visible at transport hubs across China as the Spring Festival travel rush gets underway. In Qingdao, East China's Shandong Province, robotic dogs are patrolling the city's main train station alongside People's Armed Police officers, drawing attention from travelers. Equipped with advanced sensors and connected to mobile surveillance systems, the robots are being used to step up patrol coverage and improve on-site response efficiency. (Edited by intern Ye Qianyu and Yang Xirui)