Embedded digitalized weather inspection system using wireless sensor network

Abstract

Roof sprinkler is one of the home cooling systems which involve the sprinkling of water over the roof of the house. The water will then absorb heat from the house and evaporate, achieving the purpose of cooling the home. However, existing roof sprinkler technology relies on water supply from water department, lacks weather monitoring capability and not fully automated. This resulted in unnecessary usage of water supply, thus increasing the cost of water bills. Therefore, in this project, several designs of Embedded Digitalized Weather INspection (EDWIN) system using sensor nodes and wireless sensor network are proposed. This roof sprinkler is designed to harvest rain as alternative water source, operate automatically based on inputs from equipped temperature, humidity and rain sensors, as well as to collect weather pattern for weather monitoring purpose. Two architectural designs of EDWIN are investigated and their efficiencies in resource and packet reception ratio (PRR) are compared. While multi-hop network design does not differ significantly than single-hop network design in term of efficiency in resource, its PRR is lower than single-hop network design. Both designs, however, are able to properly perform weather monitoring and execute its decision making algorithm in operating roof sprinkler automatically.