Design and Deployment of Wireless Sensor Network

Sensor nodes, which are tiny, geographically dispersed devices that monitor and record physical or environmental parameters like temperature, pressure, humidity, noise, tremor or pollutants, make up Wireless Sensor Networks (WSNs). The information collected by these sensors is subsequently sent, usually wirelessly, to a base station or central point. Wireless Sensor Networks (WSNs), which offer early warnings and real-time monitoring, are essential for disaster detection and management. Disasters are sudden, catastrophic events that cause significant destruction, often resulting in substantial human, economic and environmental losses. Disasters can be natural like earthquake, floods; or man-made like pollution and fires, and they typically require urgent and coordinated responses to mitigate their impact and aid recovery. This paper discusses design of sensor node using temperature and relative humidity sensor, DHT22 and air quality monitoring sensor, MQ135. Four such sensor nodes are deployed at the fire prone locations in the college. Floor plan of sensor node deployment is also provided in the paper. The sensor node readings are monitored on cloud monitoring system. Thus, the wireless sensor network is designed using minimum number of sensors, in cost efficient way and fire information is obtained at the base station with minimum delay.