CO and CO2 pollution monitoring based on wireless sensor network

Concentration of Carbon monoxide (CO) and Carbon dioxide (CO₂) that high in the air is very dangerous for human life. Carbon monoxide is a poisonous gas that damages the circulation of oxygen in the blood when inhaled, while carbon dioxide is one of the gases that cause global warming. Both gases are classified as colorless and odorless gas so that the necessary special tools to monitor their concentration in the air. Gas sensors technology is one of the Wireless Sensor Network (WSN) which has a wide variety of sensors that can be used to monitor the concentration of gas in an area. In this research, we implemented existing sensors on the gas sensors board to perform data readout from the environment, save it into a database and visualize the data. The sensor used in this research is CO sensor and CO₂ sensor. The method we use is connecting three sensor nodes (end-device) to a gateway or router that connected to a computer. Furthermore, the data taken from the environment by the sensor will be sent to the gateway using IEEE 802.15.4 Zigbee communications and processed by the gateway in order to be received by the server computer. The data sent will be stored into the database in the server computer so it can be used for further purposes. And then, the existing data in the database will be displayed through a website application that can be accessed by the public.