Ivory Egg Blog Archive

Posts Tagged ‘Building Automation Systems’

Latest KNX Projects

October 14th, 2010

Some of the recent projects from around the world are- Federation Building in Russia, Navarino Resort in Greece and a 1,900m2 home in the Los Angeles Hills. See the latest KNX Journal for more Information-http://bit.ly/9eS7k0

Over the past few years or so there has been a lot of attention paid in the media to solutions and applications that will impact how we manage and operate our buildings and their carbon footprint. It certainly feels that everybody is in agreement on the benefits of smarter buildings. With products such as the Energy DataStream by Synetica and other technological innovations now in the marketplace, we can already start to deliver on the promise of smart building technology. Energy monitoring and management, optimised operations, automated fault detection and even automated demand response have all become a reality.

It basically relies on the same principles of innovation that we have seen in IT and nearly every other industry in recent years. Open, interoperable and extendable platforms allowing connectivity and communication between building systems, security systems and IT systems with value added applications that help us improve building performance, drive down energy consumption, and reduce the operating costs of building. As we have seen in all other industries that have been transformed by the power of technology, after providing the open connectivity and communication the unimaginable becomes imaginable, and the sky is the limit. We simply haven’t seen anything yet and smart building technology is actually becoming, well, smart at long last.

Will buildings be operated by professional operators in overseas countries? Do we even need fancy central operating centers, or will an iPhone do? Is the Internet (Google maybe?) going to predict how my buildings should perform and automatically adjust its parameters off the cuff? Will the tenant or building user know exactly how much energy is consumed and what an individual contributes to the organization’s carbon footprint? Will we finally see the necessary reduction of energy consumption in buildings reach 30, 40, 50 percent or maybe more? Can we imagine that building users can personalize their space by using a phone or personal laptop? And so forth. And the answer to all these questions is a big ‘yes’.

So, now we’re taking building ‘automation’ to the next level, but I don’t think we should be totally satisfied. Not quite yet anyway. After all, it’s not building ‘automation’ the UK needs, but total building ‘transformation’ that we should be searching for. How is the technology going to impact  on how we perceive and use our homes and commercial properties? It’s about the ability to create and deliver new services and business models to those that own, operate and occupy our buildings. We now have the ability to design and use our buildings as if it were an iPhone. Highly aesthetic, combining form and function of the highest standards, while providing a platform over which new and exciting services can be delivered. Smart and connected buildings provide us with ways to program and configure spaces differently, in order to meet the ever changing requirements and demands of its users.

Examples of what this may mean to buildings are all around us. With social networking becoming the fastest growing (and largest) source of internet traffic today, and the increasing popularity of tweets, blogs and video posts, it won’t be much of a surprise that the way we work, live, learn and play has permanently evolved. Our next generation tenants and employees will not accept working in stuffy call centre cubicles. Collaboration and communication has been re-defined, and video and mobility are some of the key driving factors. Why do I need a workspace if I can appear virtually at any location? Why do we need a spacious lobby area (on every floor of a commercial office tower) outfitted with expensive fixtures and fittings, if we can bring hosted services over a HD video and still provide a sort of life-like experience? If mobility is everywhere, will the boundaries of our physical office environments blur? Can I work from home, on a business trip or from the coffee shop? How is this going to impact how we provide for office space?

Have you paid attention lately to how your children use communication devices to maintain their friendships, do their homework and find entertainment? (SMS, phone, email, Facebook, Twitter and YouTube). This is what HR departments and business leaders should be paying attention to. This is the audience they will need to attract in say 10 years or so. The definition of ‘workplace’ is changing and new workers are expecting change. These changes will have an impact on our buildings and communities. Flexibility, connectivity, communications and interoperability will be key to these trends. And the IP network will be the architectural platform that enables all of this to happen.

All that said, it is also true that we need to walk before we can run. We need to focus on the low hanging fruit and address the basic decisions that need to be made every day for new construction, retrofit and upgrade projects. Through our work with Integrators in the field we have found it useful to group system decisions into categories such as essential systems, ROI-based systems and brand or experience systems.

  • Essential: Look at the essential system’s controls and ensure they are the latest version offered by the manufacturer and insist on open protocols a la KNX. This provides the most flexibility for future enhancements, expansion and interoperability. Additionally, make use of the IT backbone infrastructure to connect the system’s controllers to their management servers. This will provide greater reliability inside the building and more importantly increased security for systems that offer remote access, not to mention elimination of unnecessary overlap of conduit, cabling, switching and other components. Modern, open systems built around a backbone infrastructure cost no more than the traditional silo approach.
  • Return on Investment: Evaluate the growing number of systems that might not be considered essential but can offer a compelling return on investment such as intelligent lighting, daylight harvesting, demand response, fault detection, integrated parking and others. This category makes use of the latest technologies and offers significant financial and operational efficiencies.
  • Experience: Experience or brand support systems can be very important but are more discretionary in nature and might include digital signage for messaging, way finding and multi-media, ambient music, selected wireless services, accent lighting etc.

Now the basic technologies and infrastructure are in place for lower Capital Expenditure and Operating Costs (helping us all to save money in operations and energy), it’s time to explore the unexplored. Let the total transformation of the UK’s buildings begin I say!

IntesisBox® is a small and robust device that functions as an intelligent gateway and is capable of intercommunication with KNX, BACnet, Modbus, LON, DMX, M-Bus and many other proprietary systems (BMS, HVAC, Lighting, Fire, Intrusion, Energy Management etc). Microcontrolled and easy to install via DIN rail mounting, it features RS232, RS485, Ethernet and Konnex TP1 (EIB) interfaces that are dessigned specifically to offer a range of integrations in a robust and small device with null maintenance.

With this autonomous device it is possible to interconnect directly the internal system (building automation, industrial automation, BACnet, ModBus, Konnex…) to the external system (fire system, access control system, security system, HVAC, cold/warm generation, energy generation & measurement, lighting, hotel management, home automation…). A console RS232 port is also available to connect a laptop PC for programming and monitoring the device. IntesisBox® also offers the possibility to be connected to Ethernet/LAN/WAN networks expanding thus its possibilities with connection to ethernet/IP based protocol systems, remote monitoring, networks interconnection, web server, internet/e-mail alarm sending, SNMP…

Inside its internal structure, the IntesisBox® incorporates a high performance and reliability microcontroller with flash (non volatile) memory where the operating system and integration code (firmware) are saved. This internal structure, along with a watchdog system, ensures a suitable operation of the device every time, even when faced with power irregularities such as micro-cuts or longer power failures. It has no mechanical mobile components (fans, hard discs…), therefore reducing potential malfunctions and maintenance to almost zero, making this ideal device for industrial environments. It allows (depending on the model) the generation and register of datalogs associated to internal variables, useful for example to register historical data for temperature, relative humidity, etc. Thanks to an internal interchangeable lithium battery (with approx. 10 years life time), the internal historical data is stored in case of power failure. The firmware can be also updated via the console port.

IntesisBox® allows DIN rail mounting for easy installation inside an industrial cabinet and allows a wide range of input supply voltage, from 9 to 30VDC and also 24VAC, with a low power consumption of 1.4 watts. The operating temperature range is from -40°C to +70°C and the relative humidity from 5% to 95% (non condensing). It is not necessary to have any external RS232/RS485 converter, because IntesisBox® has RS485 port and can be directly connected to a RS485 bus. IntesisBox® can be also equipped with a Konnex TP1 (KNX/EIB) optocoupled port allowing to be directly connected to any KNX/EIB bus. All available IntesisBox® hardware versions are compliant with RoHS directive (2002/95/CE).

Along with the device, it also comes supplied (free of charge) with the LinkBox software, the software tool that’s needed for configuring and monitoring the IntesisBox®. LinkBox software runs on MS Windows® operating systems and uses a serial port to communicate to the IntesisBox®. It is possible to use LinkBox Software off-line (not connected to IntesisBox®) to configure the IntesisBox® more comfortably in the office and later download the configuration to the device using the serial connection in the field. Also supplied (again, free of charge) is a console cable that’s needed in order to configure the device.  This is a standard DB9 male to DB9 female cable.  Intesis can also supplied (on demand) an external plug-in power supply (european plug) 230VAC/12VDC 300mA to power the IntesisBox® if required.

The IntesisBox® is available to order now from KNXshop.co.uk in the Communication > Gateways/Convertors section.

About Intesis Software

Intesis Software design and develop interfacing solutions for building automation systems under its own brand and OEM. Since their formation in 2000, the products have been available in more than 10 countries and 3 continents. Their success is due to the reliability and performance of the products and the quality of service provided. To find out more about Intesis and their products, please vist Intesis.com.

 

 

EnOcean Logo

EnOcean, the inventor of energy harvesting wireless sensor networks, manufactures self-powered radio modules and energy harvesters that enable OEMs to develop wireless sensors & switches for new and retrofit BAS (Building Automation Systems).

Their battery-less radio modules convert ambient solar, thermal and motion energy into useable electrical energy that powers building network communications. These “peel-n-stick” devices reduce the time, cost and occupant disruption of energy conservation retrofits; and provide unparalleled flexibility in new construction. The company is a spinoff of Siemens AG and U.S. operations are based in Boston, Mass.

The EnOcean technology is a proprietary environment not yet set out for international, European or national standardisation. However, EnOcean GmbH ist offering its technology and licenses for the patented features under license with the EnOcean Alliance framework. The concept was developed to enable e.g. battery-free switches for building equipment. The economical perspective let Siemens decide to spin the operation out of the company combine. Actual shareholders are not disclosed.

EnOcean Technology

EnOcean has developed a technology that is based on the energetically efficient exploitation of applied slight mechanical excitation and other potentials from the ambiance using the principles of energy harvesting. In order to transform such energy fluctuations into usable electrical energy, electromagnetic, piezogenerators, solar cells, thermocouples, and other energy converters are used.

The EnOcean products (such as sensors and radio switches) need no battery and are engineered to operate maintenance-free. The signals from these sensors and switches can be transmitted wireless over a distance of up to 300 meters. Early designs from the company used piezo generators, later replaced with electromagnetic energy sources to reduce the operating pressure (7 newtons), and increase the service life to 50,000 operations.

The most pervasive example of a product making use of a proprietary RF protocol is a battery-free wireless light switch. This product has gone to market with the competitive advantage that it saves time and material not to install wires between the switch and e.g. a light effector. It also saves switched circuits as the switching is performed locally at the load itself when enhanced with a local switch on permanent supply.

Packets of data are transmitted at 120 kbit/s with the packet being 14 bytes long with a four byte data payload. RF energy is only transmitted for the 1′s on the data, reducing the amount of power required. Three packets are sent at pseudo-random intervals reducing the possibility of packet collisions. Push switches also transmit a further three data packets on release of the switch push-button, enabling other features such as light dimming to be implemented.

The EnOcean technology may be used also for wireless mesh networking (proprietary mesh protocol).

Switch signals and sensor information are transmitted – interference from other signals is no threat. Every device has a unique 32-bit serial number, so local ambiguity is avoided by ‘training’ a receiver to its specific transmitters. The transmission frequency used for the devices is 868.3 MHz.

Application Examples

One application of the technology is an audience voting system developed by EnOcean’s UK distributor. Each member of the audience is given a four-button remote with an EnOcean transmitter, and the signals are decoded by a receiver connected to a PC. This avoids the need to manage batteries in many remote handsets, and each handset is uniquely identified, so the ‘quizmaster’ or presenter can see each individual answer from each member of the audience.

EnOcean Company

EnOcean GmbH is a spin-off company of Siemens AG founded in 2001, that is venture funded. It is a German company headquartered in Oberhaching, near Munich, which currently employs 35 staff. It is a technology supplier of self-powered modules (transmitters, receivers, transceivers, energy converter) to companies (e.g. Siemens, Distech Controls, Zumtobel, Omnio, Osram, Wieland Electric, Peha, Thermokon, Wago, Herga), which develop and manufacture products used in building automation (light, shading, hvac), industrial automation, and automotive industry (replacement of the conventional battery in tyre pressure sensors).

The company has won awards for the technology and company performance, e.g. the Bavarian Innovation Prize 2002 for its globally unique technology, the award “Technology Pioneer 2006″ by the renowned World Economic Forum and the award BuildingGreen Top-10 Product for 2007. The standard switch modules produced by EnOcean employ electro-magnetic generation techniques.

EnOcean Alliance

A group of companies across Europe and North America (e.g. Omnio, Thermokon, Masco, MK Electric, Distech Controls and EnOcean) formed the EnOcean Alliance in April 2008 as a non-profit, mutual benefit corporation which has the formal purpose of initially developing the specifications for the interoperability of the sensor profiles for the wireless products operating in unlicensed frequency bands and subsequently to apply for ratification as an international standard at the appropriate standardization committee, and of helping to bring about the existence of a broad range of interoperable wireless monitoring and controlling products for use in and around residential, commercial and industrial buildings.

EnOcean Licensees

EnOcean technologies also appear in other products such as ‘Navatis’ from Herga. In July 2007, the company announced technology to allow transmitters to be powered from Peltier devices with a minimum of 2 degrees Celsius temperature difference on each side of a 15 mm square Peltier panel. In November 2007, MK Electric, the largest manufacturer of consumer electrical fitments in the UK, adopted EnOcean technology for a new range of wireless switches.

To find out more, please visit EnOcean-Alliance.org.

Top of page

Follow Ivory Egg Online

  • Updating Tweet ...