Which sensors are used in smart cities?

In the smart city, a sensor is used to measure the physical properties of any object, or situation. The main sensors used include the biosensors, electronic sensors, chemical sensors, and smart grid sensors .

Smart video surveillance is a IOT-based application as it uses Internet for various purposes . The proposed system intimates about the presence of any person in the premises, also providing more security by recording the activity of that person. While leaving the premises, user activates the system by entering password.

Abstract: Smart surveillance, is the use of automatic video analysis technologies in video surveillance applications .

Maintaining a secure smart safe city entails creating a public/private infrastructure to conduct activities and provide technologies that protect and secure citizens . This includes three fundamental activities: 1) Shared situational awareness, intelligence, and communications.