Project Reference: CS98

Student’s Name: Hani Khattab

Project title: IoT platform for measuring and reducing air pollutants in indoor environments

Course Title: Business Information Technology

Supervisor’s Name: Dr. Waldo Cervantes

To develop an IOT platform to measure and reduce air pollutants indoor environments in order to improve health and overall wellbeing.

Air quality is one of the most important aspects of people’s lives, and many people do not actively take measures to improve the air quality in their homes. The indoor air quality can become polluted from any number of anthropogenic or natural sources which can cause an increase in Carbon dioxide, Carbon monoxide, Nitrogen dioxide, Sulphur dioxide, Ozone and Volatile organic compound. All of which at high concentrations can cause major harm to animals and babies in particular as their lungs are still developing. Low pollution levels can cause Sick Building Syndrome which causes the feeling of ill health and a decrease in productivity. Thus, an air quality monitoring tool is required that automatically measures the air quality in real-time, identifies when the air quality starts becoming polluted and opens the window. Additional features such as a voice assistant allow a user to identify in real-time what the temperature, humidity and air quality is. A live dashboard has been created which depicts important information about the air quality in an easy to understand manner. This resulted in a device that lowers the polluted air over time (depending on the window size), allows the user to better understand their air quality and alter behaviours that polluted the air (i.e. smoking indoors). Advantages include high accuracy due to the industrial use of sensors, low noise, low power, compact size, automated functionality to reduce air pollutants. The data processing software allows the user to understand large amounts of data in real-time, view and understand historical data. The device can be used in commercial environments.

  • Automatically opens the window when air quality becomes bad without the need for human interaction.
  • User can gather real-time data through voice assistant anywhere around the world.
  • User can view a live dashboard that displays important information about the air quality anywhere around the world and allows historical information to be viewed – allows trends to be formed based on air quality, temperature, humidity, and CO concentration.
  • The LED strip used allows the user to visually see if the air quality is fresh, low, or high pollution (green, yellow, and red) easily.
  • The small and compact design does not use much power (3.3v for ESP8266 (microcontroller) and 24V for linear actuator) and can be stored away from sight.
  • The linear actuator is quiet (<50dB) and fast (8 mm/s).
  • Fast and responsive sensors allows immediate changes to the state of the linear actuator, (can alter from fresh air to high pollution in under 4.5 seconds).
  • Carbon monoxide is an odourless, tasteless, poisonous gas and can render a person dead at high concentrations. This can only be detected using a sensory device. The device created can automatically detect the bad air quality when it arises and open the window but also inform the user about which aspect of the air quality has caused the pollution.
  • As CO is odourless, tasteless, poisonous gas a gas leak is impossible to detect without a sensory device. As carbon monoxide is lighter than air, a flame can easily flash back to the source of the leak and cause an explosion. The device can alert the user on both the dashboard and the LED strip that there is bad air quality. The dashboard can show specific concentrations.
  • The dashboard can easily be altered to show other air quality pollutants such as particulate matter concentrations (PM 2.5, 5 and 10), Carbon dioxide, Nitrogen Dioxide, Particulate Matter, etc. with an easy to use drag and drop interface depending on the user(s) preference.
  • The device is modular, sensors can easily be added or removed depending on the user’s needs and preferences.”