This article explains why the 6 international standards are working together for a cyber-secure future in smart buildings of tomorrow.
The imperative for the digitalisation of buildings is clear; they generate nearly 40% of annual greenhouse gas emissions, and thanks to the COVID pandemic, places of work and leisure are having to be reimagined. The momentum to make buildings more efficient and responsive to users is growing, and if the pandemic and climate catastrophes have taught us anything, it is that there is no time to waste and global cooperation is key.
We also know that communication within and between buildings will be based on IP, and will include more and more IoT devices. The question is, given the disparate IP solutions available within the building controls industry, how do we ensure the smoothest transition to an automated future, and that the solutions we put in place are secure over the long-term, against the constant threat of cyber-attack?
IP-BLiS
Recognising that a secure common communication network is essential, key players in the building and lighting controls industry have come together to set up IP-BLiS (IP-Building & Lighting Standards). Let's be clear; IP-BLiS is not creating a new standard. Rather, it describes common processes that will guarantee cyber security when using an IP backbone infrastructure.
IP-BLiS so far includes: BACnet International, DALI Alliance, KNX Association, Open Connectivity Foundation, Thread Group and the Zigbee Alliance. It works as a marketing multi-association liaison group rather than a legal entity. There is no paid membership, and other organisations are welcome to join.
How IP-BLiS will work
The main purpose of IP-BLiS is to provide a feedback channel between customers and the various member associations, consulting with the market in order to establish the best ways forward, and to promote best practices to professionals.
As Arnulf Rupp, a Director of the Thread Group, says, "Despite our separate trade associations, we share many of the same issues. And while each group has its own IP-based solution, IP-BLiS represents the industry’s commitment to harnessing and delivering the intrinsic potential of IP.”
Rupp explains further, "To-date, those responsible for commercial buildings have had no choice but to use multiple IP and non-IP technologies. As a result, their ability to automate functionality is limited - which impacts their tenant’s experience - and system maintenance is considerably more challenging. To address that, we’ve unified our approach within IP-BLiS. Because we all share a common IP network, we’re able to provide the best support for all ecosystems represented in IP-BLiS. Plus, because IP transports neutrally support application layers’ security, customers are assured that, no matter which IP network they use, its security will be fully respected and maintained."
KNX Association President, Franz Kammerl, likens this to the EU passport system. "Each country has its own passport and security system in the background, but it is all part of an agreed superstructure. Similarly, gateways will be provided for the different systems to the IP network, but these will be software rather than hardware."
With the IoT Cybersecurity Improvement Act enacted into US law in December 2020, there is now an obligation for manufacturers and installers to take a security by design approach. As Brian Scriber, Officer of the Board of Directors of the Open Connectivity Foundation notes, "Installing and commissioning building and lighting control systems might take days or weeks, but we now need to consider the lifecycle of the system from a security perspective, which requires greater collaboration between organisations involved in the building automation supply chain."
Objectives
The main goal of IP-BLiS is to make commercial buildings more responsive to the needs of users by promoting a secure, multi-standard, IP-based harmonised IoT solution. It will guarantee cyber security, be in line with the EU's EPBD (Energy Performance of Buildings Directive) and will help to reduce costs and installation efforts.
Initial steps
According to Paul Drosihn, DALI Alliance General Manager, trade organisations must have the answers ready before their customers start asking. IP-BLiS must therefore describe the common processes that will keep IP security at the forefront, and these could be based on existing standards. As he notes, "The technical solutions are almost there, it is just a question of the different associations developing the tools to implement this."
Who will benefit from IP-BLiS?
Mak Joshi, Vice Chair and Board member of the Zigbee Alliance, suggests that “digitalisation of buildings and IP convergence are the megatrends with a potential upside for everyone in the value chain; building owners and facility managers, specifiers, architects, planners, systems integrators, maintenance service providers, IT/OT managers – just to name a few. To achieve this upside, adoption by this value-chain will be key. Therefore, it is crucial that standards organization include adequate representation of the various stakeholders and their interests in the standards evolution process.” This is a great time for standards organizations and members of the IoT community to get involved and build on the megatrends mentioned above. All relevant trade associations are welcome to join IP-BLiS. The website below offers up to-date information about IP-BLiS activities and provides details about how to get involved.
Written by Yasmin Hashmi, Editor, KNXtoday magazine on behalf of IP-BLiS