• • • SMART BUILDINGS & IOT • • •
SMART BUILDINGS GET HYPERAWARE
By Graham Martin, chairman and CEO of EnOcean Alliance
happier. Where IoT sensors can be considered as the eyes and ears of a smart building, it has recently been possible to join building data with context. The result is a “hyperaware” smart building - an instrumented structure in which applications are mindful of the contextual status of the environment, occupants, energy requirements, service needs, security and safety. Future growth of smart buildings will be driven by
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economic, as well as these human factors. According to McKinsey¹, human activity monitoring is expected to increase productivity by 5%; human productivity organizational redesign is expected to yield 3-4% productivity, augmented reality is expected to yield 10% productivity gains, whilst energy monitoring should reduce costs by 20%; and IoT should yield a 20-50% reduction in building security costs. Such growth is all the more significant because
these percentages are multiples of large numbers. Commercial real estate services company Jones Lang LaSalle² observed that, in general real, estate tenants spend roughly $3 per square foot per year for utilities, $30 for rent, and $300 per for payroll. This “3-30-300” rule of thumb makes clear that the greatest financial benefits can be obtained by making people more productive and efficient. Pivoting toward human productivity optimization also improves space efficiency, which in turn reduces both real estate footprint and energy costs. Energy efficiency programs initially led the charge
to smart spaces because this is one of the specialties of building automation vendors. Moving on to human productivity requires a second pivot towards vendors and applications that can create cognitively aware digital workplaces. IoT can change the way in which machines and humans
onverging technologies of IoT and building automation are creating smart spaces that make workplaces safer, healthier and
interact to make people more productive. The necessary frictionless machine-human interchanges must overcome the complexities of computing, security, and communications systems needed to accomplish the task. The industry is nevertheless finding new ways to simplify human interaction with complex machine-based systems. Why is hyper-awareness important? Without
context, data alone cannot provide the ability to respond to occupants and their environment. The richer the data and context, the more adaptive the building. So, while smart buildings have limited understanding, hyperaware buildings with full instrumentation are future proof. To make this happen, there needs to be a
convergence of two worlds that are conventionally apart: data-focussed building automation and control on one hand and IT on the other, where intelligent networks and big data can add the context. The key is to provide an interface between intelligent, structured, secure IT and the untrusted building automation. For example, in an automated room reservation
system, identity, presence, calendar, and location are needed to know who is present, when meetings can start, what should be presented, if social distancing is being met, when a room can be released, the path to the closest exit many other intelligence that will boost productivity or save cost. In this context, the network access point provides a platform with various interfaces for occupancy, occupancy, distancing, rest-room materials and desk usage sensors as well as actuators, smart lighting systems; personal area network radios for heating, air quality and access control; and other energy-harvesting devices. These gateways extend the reach of monitoring and digital twin applications into legacy infrastructure, yielding deeper visibility and insights without incurring the cost of ripping-and-replacing installed devices.
38 ELECTRICAL ENGINEERING • SEPTEMBER 2020
BRINGING IT TOGETHER
To make these things happen, there needs to be a bridge between complex IT systems and the rich va- riety of automation and control solutions. Two of the major players representing each side of this convergence are doing exactly that. The EnOcean ecosystem, which represents innovative ISO stan- dard wireless and energy harvesting technologies, has recently joined forces with the unified cohort of infrastructure, security, and location technology partners represented by Aruba, a Hewlett Packard Enterprise company. EnOcean is the creator of the ISO/IEC 14543-3- 10/11 energy harvesting 800/900MHz wireless standard. More than 400 EnOcean Alliance vendors build facility monitoring and control systems using this standard. Sensors require no batteries for power, and no wires to communicate, making them economical to deploy and maintenance-free. RS- 232, RS-485, ModBus, LONWORKS, BACnet, KNX, and DALI control systems and devices are supported via locally powered, EnOcean-enabled gateways. These gateways extend the reach of monitoring and digital twin applications into legacy infrastructure, yielding deeper visibility and insights without incurring the cost of ripping-and-replacing installed devices. EnOcean and Aruba have partnered to allow
Aruba Wi-Fi 5 and Wi-Fi 6 access points equipped with EnOcean 800/900MHz USB adapters, and using Aruba OS version 8.7 or later, to communicate bi-directionally with ISO/IEC 14543- 3-10/11 compatible devices. With literally thousands of such devices and gateways from which to choose, virtually any smart building monitoring application can be accommodated. The joint solution can be retrofitted to existing Aruba deployments, extending the value of sunk capital investments.
electricalengineeringmagazine.co.uk
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