To Smart City: Public Safety Network Design for Emergency

In smart cities, there are always unpredicted emergencies, which must be handled to maintain the regular order. Then a smart system is needed to detect threats and deal with them. In this paper, we propose a system structure composed of a central agent and three layers: unmanned aerial vehicle (UAV) layer, multirobot layer and sensor network layer. The UAVs act as moving sensors and conveyors in the air. They provide the overall rough monitoring data from the air and transport robots to the emergency occurring places. The robots on the ground are responsible for obtaining detailed monitoring data and dealing with the emergencies. The sensor networks keep monitoring the environment and assist robots and UAVs in the range to complete their tasks. The central agent can adjust the system according to the specific task requirements. We provide a general system design and review main required technologies, highlighting the challenges and some possible solutions. The future researching directions are presented to guide the system design.