OpenAIS
OpenAIS is an innovation project that developed an open architecture for professional lighting control under IoT from 2015 to 2018 .
The acronym OpenAIS means "Open Architecture for Intelligent Solid state Lighting". The project was funded by the EU as part of the Horizon 2020 program.
Based on the multicast options of the Internet protocol IPv6 and the REST protocol CoAP , OpenAIS has created an "Open Group Communication" with which the essential requirements for professional lighting control tasks are met.
Project participants were Philips Licht , Zumtobel , Tridonic, NXP , ARM , Johnson Controls , Dynniq, TU / E and TNO .
Problem
Normal Internet communication ( CoAP or Http ) always takes place between a client (the end device) and a server, with the client establishing the connection to the server. For lighting controls, the lights act as a server and the light switch as a client. For switched groups of luminaires, the light switch must now address one luminaire after the other in order to switch the light as a whole. With larger groups, this usually takes too long for the user, even with a fast connection.
Result
The Open Group Communication makes it possible to address many lights at the same time without causing excessive delays or excessive data traffic. The OpenGroup Communication provides suitable measures to prevent collisions of the acknowledgments of receipt and which make it possible to define the maximum bandwidth used, even with several group commands. This is particularly essential for manual dimming in radio systems.
The object models and APIs developed and proposed by OpenAIS are published and registered with the Open Mobile Association and are therefore publicly accessible. The architecture document is publicly available on the project website (English text) and contains the object and API definitions as an appendix. Important project documents are also available in the EU's CORDIS database , but the final report and related documents are not yet online (October 2018).
The LWM2M object definitions are standardized and publicly accessible and openly usable in the LWM2M Object registry (objects 3387 to 3406).
safety
OpenAIS requires that the content of all messages be encrypted. According to the OSCORE procedure proposed by the IETF , which currently (October 2018) has not yet been adopted as an FC , it is ensured that other users in the same network cannot evaluate the communication and thus also that the luminaires, which are usually more difficult to protect, cannot act as an entrance gate to the Hacking a network.
The procedures for the joint encryption of group messages are currently (October 2018) still being discussed at the IETF with the aim of finding a sensible balance between processing speed and security.
Pilot project
As a demonstration of the function in Eindhoven in a customer's office building, the project team carried out an installation with over 400 lights with lighting control based on the developed technology and operated it for four months. The final quality of the result shows that even large lighting systems with mixed IP systems ( LAN and radio) can be implemented.
Individual evidence
- ↑ Open Architectures for Intelligent Solid State Lighting Systems | Projects | H2020 | CORDIS | European Commission . In: CORDIS | European Commission . ( europa.eu [accessed October 14, 2018]).
- ↑ Open Mobile Alliance - LwM2M Registry. In: www.openmobilealliance.org. Retrieved September 16, 2019 .