In this poster, we design the Collaborative Mobile Surveillance System (CMSS) integrating vehicles and Internet of Things (IoT), for an intelligent and near real-time safety management. The system, consisting of Artificial Intelligence (AI) and network communication methods, aims to improve the sense of safety for drivers in smart cities. The CMSS will detect and notify emergency events, such as crime and lifethreatening situations, using sensors, AI-based audio processing and computer vision, and send notifications to emergency services (e.g., police, ambulance, and firefighting) enabling immediate action.