Portable indoor gas sensor using a single board computer

• Main Author: Goh, Wei Qiang
• Other Authors: Wong Kin Shun, Terence
• Format: Final Year Project
• Language: English
• Published: 2019
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: http://hdl.handle.net/10356/77214
• Institution: Nanyang Technological University

With the advancement of technology, the former luxury of having air conditioner in indoor settings have become a norm to modern day Singapore. Almost all the building infrastructure are equipped with air conditioner. This requires sealing of buildings to prevent against loss of heat and cooling; and thus, the indoor air quality may be more polluted than outdoor air if there is no proper ventilation within the building. Air pollution can come from large-scale incidents and phenomena such as factory outputs or haze from deforestation. Small-scale air pollution such as cigarette smoke, gas stoves release and volatile organic compounds from air fresheners are also some of the common indoor air pollutant sources. The current measurement for indoor air quality uses volatile organic compound sensors and carbon dioxide meter. However, this measuring equipment are expensive and not ordinarily used. Rising projects through a single board computer has allowed creation of Internet of Things (IOT) applications through an economical means. Raspberry Pi 3 is the transducer discussed in this project. It offers a variety of use that can connect between machine to machine uses. In this project, we will be integrating Raspberry Pi 3 with gas sensors to create a portable indoor gas sensor using a single board computer.