This is my fifth semester project on the topic of domestic water supply and how to raise awareness. The aim of this project is to visualise water consumption in a transparent, comprehensible manner. Water meter are found in every home, but they are completely adapted to the specific needs of the supplier. With this project I wanted to account the needs of both, the suppliers and the consumer.
The smart water meter is digital and measures the consumption digitally via a hall effect sensor. The data is stored on a small server transmitting it via wireless LAN to various devices. Other sensors e.g. in the toilet or washing machine can add data to achieve full transparency.
Meter and server are powered by energy harvesting, a small dynamo converts the water pressure (potential energy) into electric energy. A rechargeable battery provides a stable power supply in case of high current load or longer absence. Therefore, the water meter can be operated independently and without additional infrastructure.
5. Semester, SS 2011