Digitisation in existing buildings is not as widespread as in other sectors. A consequence is that buildings owners and occupants have generally a limited understanding of their building as an energy system. Improving the energy efficiency of existing buildings can and should be achieved through deep renovation. In comparison, smart technologies can increase the efficiency and the flexibility of buildings in a shorter term and with much less investments. The domOS project addresses the smart building sector through two axes:
In the first axis, technology, guidelines for an open, secure, multi-service Internet of Things (IoT) ecosystem for smart buildings are defined: in-building gateways, which connect to local smart devices and smart appliance of any type, IoT platforms and applications operated by different parties can be integrated seamlessly. Buildings owners can enforce privacy rules, they can allow / forbid access to any measurement or control point.
The second axis deals with the development of smart services. They increase energy efficiency of space heating (heat pumps, district heating, gas boilers) thanks to innovative control algorithms making use of smart sensors and smart heating appliances. Automated advice services provide concise and sound information on the building energy. Buildings become active nodes of an electricity grid or a District Heating grid.
Any application for visualisation, energy optimization, home automation… can access any field data, if authorisation is granted, independently of the local communication network technology.
Applications, together with the building local communication system, form the IoT ecosystem for buildings. Features of the IoT ecosystem for buildings:
Applications and local communication systems share a common nomenclature (ontology) for field data (e.g. name for “instantaneous power for heat pump”) and building meta-data (“The air-water heat pump is used for domestic hot water preparation and space heating”).
Demonstrators requirements will drive the elaboration of the shared nomenclature. Existing ontologies will be evaluated and completed according to these requirements.
Smart services make buildings more energy efficient, more flexible and gives more ?? to occupants and facility operators.
Increased energy efficiency:
domOS will also design, deploy and evaluate smart services that aim at empowering users by increasing their level of understanding of their building as energy system and by providing them with tools that assess the consumption and suggest proposals for improvements.
Smart services for existing buildings are deployed in several demonstration sites, using different frameworks compatible with the domOS IoT ecosystem specification. Their performance regarding technology, energy, user experience and business is assessed. Supported smart services: