An IoT platform integrated into an energy efficient DC lighting grid

Allowing users and managers of existing buildings to benefit from non intrusive Internet of Things (IoT) integration is a great asset. IoT integration opens a plethora of new services such as lighting and power-consumption management, indoor location-based services, surveillance etc. In this paper we show how a DC lighting grid can be combined with wireless components to facilitate the deployment of routers/sensors and actuators powered by the DC lighting grid. These control devices can be placed wherever in the building and communicate with the other devices in the network, wirelessly or via the PowerLAN available on the DC grid. For organizing communications with the wireless autonomous sensors and actuators, lightweight network stacks, including application layers based on CoAP or MQTT, are deployed.