IoT Framework for Water Monitoring Using the M-Bus Interface

Sammanfattning: Immense amounts of water are wasted daily, and it is as important as ever to optimize our water consumption, especially considering that today around 850 million people lack access to clean water. With the rise of the Internet of Things, creating a monitoring system for this purpose becomes easier, but there arises a problem of interfacing water meters to IoT capable devices.In this thesis a framework for IoT smart water monitoring is presented. Both short range and long range communication techniques are shown, compared and discussed. Similarly, different smart water meters and their characteristics are compared.The main goal of this thesis was to implement an interface between a sensor node and the water meter, ensuring the transmission of data in an easy way. To achieve this goal, a M-Bus library integrated into Contiki-OS is presented, thereby showing that it is possible to interface a water meter with a sensor node. The implemented library is capable of changing some of the configurations of the water meter, receiving data from the water meter, as well as forwarding the data via MQTT or CoAP protocols for further processing on the server side.