The Internet of Things (IoT) can access certain subsets of data for the
creation of several digital services, while also integrating a wide range of diverse and
heterogeneous end systems in a transparent and seamless manner. This chapter
examines innovative solutions to key challenges in smart cities, with an emphasis on
ambient noise assessment, air quality monitoring (E-nose system), and smart parking
management systems (SPMS). Utilizing servo motors, smartphone apps, and sensors,
the SPMS combines Internet of Things technology to maximize parking space
distribution, improve user experience, and raise total parking efficiency. An E-nose air
quality monitoring system with a sensor array based on the ESP32 can identify gas
pollutants, dust, and CO2. Techniques for processing data, such as threshold alarms
and median computation, provide precise and prompt air quality monitoring.
Additionally, a noise monitoring system with a Gaussian filter and sound level sensors
is demonstrated. The proposed analysis demonstrates how IoT-based solutions may be
used to enhance sustainability, manage urban infrastructure more effectively, and
improve people's quality of life in smart cities.
Keywords: Internet of Things, Internet of Things network, Monitoring, Smart cities, Urban areas.
