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Posts Tagged ‘Smart Building Technology’

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Coastal hotel counters rising electricity costs with ...

March 9th, 2010

Contrary to what you might believe (after all it is officially the sunniest place in Britain), the sun does not always shine for hotel owners in Weymouth, in Dorset. They are not only feeling the present economic downturn, but the price of electricity is soaring and obviously shows as a big red minus on their balance sheet. So instead of watching their profits diminish because of the price of power, the management of one leading Dorset hotel looked for a way of cutting cost and reducing their energy consumption. The answer was simple and their Contractor introduced them to EnOcean‘s self-powered wireless technology.

Project Type

The project involved retrofitting 106 rooms with energy saving solutions that work on alternative sources. A new energy management system  was required that would enable the hotel to both reduce its overall power consumption and help do something against climate change. If they could achieve a 20% decrease in total power consumption, it will enable the hotel to reduce their annual carbon emissions by over 14o,000 kg.

Customer Expectations

They wanted the hotel rooms fitted with wireless key card switches, presence detectors and door sensors. The wireless key card switch will function as a master switch for the hotel rooms. A presence detector automatically cuts out the HVAC as soon as a guest takes their key card out of the dock and leaves their room. A door sensor, powered by a solar cell, recognizes the status of doors and windows and will also switches off the HVAC after a set length of time if the door to a balcony is open. Signals for the cableless and batteryless light switches and sensors are converted into switching functions by relay receivers.

Customer Comment

Given the financial and environmental benefits, we were happy to accept a short term shutdown for the purpose of installation. The hotel didn’t have to be closed for any lengthy period because attachment of the EnOcean-enabled cable-less sensors and switches is so fast and straightforward. Almost all rooms were pre-booked, so the loss through installing cabled switches and sensors would have cancelled out the immediate gain resulting from the project. Not forgetting all the effort, discomfort, inconvenience and not to mention mess involved in routing cables through concrete walls and ceilings. A further advantage of the new EnOcean technology is the fact that the sensors and switches are self-powered, so they need no maintenance, i.e. battery replacement, for their entire lifetime.

Top Features

  1. Power consumption down and carbon footprint smaller
  2. Speed of installation prevented operating loss
  3. An investment that pays back
  4. The ecological advantages of course, through less air pollution and reduced consumption of raw materials
  5. Wireless key card switches
  6. Presence detectors that automatically cut out the HVAC

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Five Star Lighting Control at London Hotel

March 9th, 2010

Project Type

The main design goals for the hotel lighting were to use decorative lighting to enhance the unique appearance of this boutique hotel, to use energy-efficient lighting where appropriate, and to use night time façade lighting sparingly. Ease of maintenance was another primary concern. In addition, the lighting designers were constrained by a strict and pre-agreed budget, plus time was limited.

Customer Expectations

Decorative incandescent lighting was needed in public spaces, combined with energy-efficient cove lighting for ambient illumination. Discreet night time exterior building lighting was required in order to draw attention to the architectural features instead of just using ugly floodlighting and illuminating large areas of the façade. Furthermore, glass and faux alabaster panels with back lighting were required to customize the reception desk, boardrooms, and corridor areas. Lighting controls are standard issue in hotels and they’re widely accepted/used for the flexibility that they lend to the lighting design. Four-scene dimming control panels were requested for the public areas, such as the reception desk, atrium lobby, ballroom, boardrooms, restaurant and lounge area.

Customer Comment

Decorative lighting integrated with the lighting controls helped set the mood and ambiance of the public spaces. It was exactly we were looking for. The lighting controls provide the flexibility to adapt the lighting to the time of day. I love the fact that the ambiance of the restaurant is now different for breakfast, lunch, dinner, and for the evening. The atrium lobby lighting can be changed in response to the amount of available daylight. The lighting controls lend flexibility to the lounge areas and boardrooms, so that they can be adapted to their several potential uses. The most enjoyable part of the building is our restaurant. It’s very eclectic, and it has a lot of modern bright colors, a lot of different types of lighting, and a lot of different types of light fixtures. It is a kind of multi-purpose room: it’s an open area that not only serves as a restaurant, but a bar, and a lounge. Throughout the day the lighting controls really set the whole mood of the entire area.

Top Features

  • Achitectural dimming controls are used extensively in the lobbies, ballrooms, boardrooms, and restaurant where lighting flexibility is essential to decor and function in a stylish boutique hotel.
  • Decorative lighting was a priority in the design of the public spaces and in public transition and sitting areas such as the reception area and lobby, where dimming controls were used to make these spaces appear unique and inviting.
  • In the main lounge and restaurant, dimming is used for mood setting.
  • In the boardrooms and conference facilities, dimming provides the flexibility needed to accommodate presentation media.
  • Daylight is plentiful in the split level lobby and innovative light shelves with angled slats are used to control the angle of the light that enters the low glazing and to reflect more daylight up through the higher level glazing.
  • Eelectron range of hotel automation products throughout the hotel for the programming, management and configuration of cards, transponder readers/cards, Din Rail IP PoE Router KNX interface, eSuite Software and the TM11A KNX thermostat for controlling room temperature.

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Energy Harvesting, Wireless and Next Generation Energy ...

March 9th, 2010
EnOcean Logo

 

Bottomless power generation comes from ambient sources such as linear motion, light and temperature differentials. Wires run through buildings like veins run through our bodies. Wires are pervasive and vital to day-to-day operations; however, today’s brave new ‘green’ world warrants consideration for solutions that reach beyond the confines of wires. As one decade comes to a close, EnOcean asserts that the next decade will feature wireless and batteryless controls that will carry building energy initiatives where wires fall short.

Widespread Smart Building integration has been stalled by installation costs and ominous tasks such as pulling wires through walls and ceilings. Battery-dependent wireless solutions can overcome some installation barriers, but the market has indicated it will not tolerate the maintenance issues tied to them. If the goal is to reduce energy consumption and CO2 emissions, then integrators need non-invasive installation means and payback data that tips the scale in favor of spending the money to modernize existing buildings. Now that more than 100,000 buildings have been fitted with EnOcean-based products and energy reductions are in the books, a case is being made that wireless energy harvesting controls provide a radically easy form of Smart Building integration.

The Power of Unused Energy

The hallmark of the EnOcean wireless standard is batteryless and wireless communications. The technology stems from a simple observation – where sensors capture measured values, the energy state is constantly changing. For example, when a switch is pressed; temperatures and luminance levels change. These rudimentary operations generate enough energy to transmit radio signals that automate lighting and HVAC control. Instead of batteries or line power, EnOcean uses miniaturized energy converters and capacitors that power sensors and switches. EnOcean’s bottomless power generation comes from ambient sources such as linear motion, light and temperature differentials.

Energy harvesting enables the generation of radio signals from extremely small amounts of energy. Using just 50 micro watts of harvested power, an EnOcean-based control can transmit a radio signal 1,000 feet (150 feet is typically indoors – through walls and ceilings). An important part of the patented secret is using short signal durations – the entire radio transmission process starts, executes and completes in less than one thousandth of a second.

3rd Generation Wireless Energy Harvesting

EnOcean recently released its 3rd generation suite of energy harvesting wireless modules. The modules are based upon the Dolphin ASIC, the world’s first platform that supports self-powered two-way wireless communications, ultra low power sleep modes and the ability to self-power actuators such as water valves and air vents. Wireless building automation devices spend much of their time asleep; so EnOcean engineered the lowest sleep current in the industry (200 nA). Dolphin-based modules consume approximately 1/10th the power of common low power radio modules. The platform allows OEMs to create energy-autonomous controls that are able to draw power from multiple ambient sources, such as solar, linear motion and thermal energies.

EnOcean modules are often referred to as ‘application modules’ and these modules ship out-of-the-box with extensive firmware functionalities built-in – such as basic switching, dimming, measuring, etc. – and can go straight into an application without additional programming. EnOcean developed highly efficient methods of synchronizing sensors, supporting RF acknowledgments as well as integrated sensing/control functions. Application-specific functions reduce product development times and are embedded in each module; however, integrators can now also develop their own firmware using EnOcean’s new Dolphin Studio – support software for custom firmware development, RF packet monitoring and C-based code sampling.

The new Dolphin platform conforms to the open, interoperable EnOcean Alliance protocol and enables manufacturers to rapidly develop solutions to suit today’s ‘green’ economy. EnOcean’s Dolphin system architecture is also backward compatible with earlier EnOcean products and installations. In addition to the introduction of new platform, the company has also further enhanced wireless capabilities with remote commissioning and wireless routing creating new opportunities previously not possible with energy harvesting. Dolphin-based radio modules are now available direct from EnOcean or through and its distribution channels.

HVAC Energy Management

Radio waves are in the thick of the race to make buildings more energy efficient. Integrators can reduce installation costs and recoup those installations costs via energy usage reductions over time. Older buildings are often guilty of wasting giant sums of power. The Government estimates that 80% of buildings constructed prior to 1980 are energy-inefficient and do not house and Smart Building Technology. Additionally, older buildings often have little or inadequate insulation.

Speedy Implementation

Entire installation can be carried out with minimum interruption – Virtually impossible to achieve using a cabled solution because of the need to break open walls (duct work and cabling). Implementation of the system in even a large office complex can take just one week — including installation of the central control engineering to monitor and govern energy consumption. The biggest challenge is the right positioning of the room sensors because you’re dealing with thick walls made of concrete and steel. However, choosing EnOcean’s self-powered wireless technology can save up to 20 percent in installation costs alone and significant energy savings.

Lighting Energy Management

Buildings account for 38% of this country’s CO2 emission and lighting accounts for 40% of the energy consumed by buildings. Buildings therefore present an important place to start improving energy management via things like occupancy-based lighting control systems. Occupancy Sensors have been identified as the primary means for conserving energy.

Installation

Because the controls do not require wiring or batteries, installation can be completed in just three steps.

  1. Replace existing light switches with line-powered receiver light switches (wiring is the same as a standard switch).
  2. Program the light switch receiver to respond to occupancy sensor and self-powered light switch. The devices are factory set to manual-ON, auto-OFF (custom to suit California Title 24) – no extra setup was necessary; however, an “auto-ON, auto-OFF” mode is also supported.
  3. Mount sensors and light switch – anywhere! Since they are self-powered and wireless, the controls were mounted according to building owner preferences.

The EnOcean Alliance

More than 120 automation solution manufacturers formed the EnOcean Alliance to promote sustainable buildings via batteryless and wireless controls. The Alliance is committed to interoperability through 1 wireless standard. Collectively, Alliance members have manufactured 300+ building automation products that are on the shelf today – more than any other wireless standard.

Interoperability is an important key to the Alliance’s success:

  • Between Products – All EnOcean-based sensors and switches are interoperable – regardless of the manufacturer. For example, an occupancy sensor manufactured by Vendor A can communicate to a controller manufactured by Vendor Z.
  • Between Applications – EnOcean-based solutions support multiple applications (ie. a single wireless light switch can communicate to lighting systems as well as HVAC systems).
  • As Gateways & Interfaces (LonMark, BACnet, DMX, 802.11, TCP/IP Ethernet, KNX, RS-232/485 Serial, etc.)

To find out more, please visit http://www.enocean-alliance.org.

 

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Ding Ding… KNX takes on all comers!

March 9th, 2010

After stumbling across a discussion thread on AV Forum that discussed the merits of various lighting/smart home control solutions, in response to a question on who’s the best in terms of cost a technical features/benefits, I thought I should look into this a little deeper.

OK, at Ivory Egg we could be viewed as a little KNX or DALI biased, so I promise to be as objective as possible and open to feedback here. At the end of the day we are independent, simply want to deliver the best solutions to our clients and I would hope this article, at the very least, will stimulate some form of debate. You can view the complete thread at AV Forums.

So, in terms of the players (at least who I perceive to be the market ‘leaders’ in this field), and again you may disagree with my selection, I have decided to look at the following solutions. This selection is based purely on the names I come across on a weekly basis:

  • KNX
    KNX is a standardised (EN 50090,ISO/IEC 14543), OSI-based network communications protocol for intelligent buildings. KNX is the successor to, and convergence of, three previous standards: the European Home Systems Protocol (EHS), BatiBUS, and the European Installation Bus (EIB or Instabus).
  • Crestron
    Crestron is the world’s leading manufacturer of advanced control and automation systems. They offer integrated solutions to control audio, video, computer, IP and environmental systems, and streamline technology to improve the quality of life for people in corporate boardrooms, conference rooms, classrooms, auditoriums, and in their homes.
  • Lutron
    Lutron Electronics Company, Inc. is a privately held corporation that designs, manufactures, and sells lighting control systems and a variety of other related products. Its probably fair to say that Lutron lead the way in lighting control systems.
  • Rako
    Rako provide state of the art digital dimming technology. Their innovative solutions meet the needs of a diverse range of applications by offering lighting systems that are simple to use, creative, easily installed and cost effective.
  • DALI
    The Digital Addressable Lighting Interface (DALI) is a digital protocol for the controlling of lighting in buildings, such as electrical ballasts and dimmers.
  • INSTEON
    INSTEON technology is a dual-band mesh topology employing AC-power lines and a radio-frequency (RF) protocol to communicate with and automate home electronic devices and appliances, which normally work independently. It is a home automation networking technology invented by SmartLabs, Inc., and was developed based on the X10 model for control and sensing applications in the home.

Not everybody active in this field, but a good starting point? Unfortunatley though, we have a bit of a problem when trying to compare these so-called competitors, as basically what we’re dealing with is a mix of different standards, manufactures and solutions that are all competing against each other. I would love to be in position to just compare like for like and publish the pros and cons of each, answer the questions in places such as AV Forum, but that would not provide a true representation of each solution (I hope I’m not stating the obvious here)…

For example, it makes sense on some projects to have a mix of KNX and DALI. As DALI is an open protocol for lighting control mainly in commercial buildings, while the growth area in KNX is for residential and LED. Take Heathrow Terminal 5, which has a KNX backbone with switches/PIRs etc and a gateway to DALI for the lighting. KNX can’t compete with DALI, as the DALI is fitted to the ballasts that control the lighting and sit in the actual light fitting. They are complimentary systems and we approach it from that point of view as we sell KNX/EIB DALI gateways at Ivory Egg.

In terms of KNX vs. some of the other systems, well Lutron is bar far the market leader in terms of pure lighting control. Rako on the other hand sell purely wireless lighting controls and they are great for DIY/retro-fit. As for INSTEON, which is again a wireless control technology, they currently have no European devices so it doesn’t really complete with KNX and is more of a competitor to the likes of Z-wave and EnOcean (which is another blog altogether). And finally  we have Crestron, who supply more AV & generic device control solutions.

It is worth pointing out that Crestron do provide a complete AV, lighting and control solution. It does it by controlling different devices from multiple manufactures and a wide range of different protocols via a central controller. From a consumer point of view Crestron is “Interface Centric” via tablet and in wall touch screens. This hides the complexity of using Lutron for lighting, X manufacturer for heating and Z for multi room audio. It is an expensive route to take, but on the positive side it is highly configurable.

KNX is standard based and developed from a consumer point of view. It is switch centric, in other words it is a compact and stylish intelligent switch on the wall that can easily control the ‘functions’ in a room (HVAC, lighting, blinds etc). KNX has 1,000s of products that are certified to work together, but this is not the case with Creston. That said most consumers wouldn’t know the difference, as most simply go on look and feel, and that is where market leaders such as Basalte and Gira score highly. Their products are innovative, look fantastic on the wall and at Ivory Egg we can supply a whole host of fittings for 13amp sockets that will coordinate with the wall switches. And to be fair, this is what the architects are demanding!

So difficult to draw conclusions really. I guess the big question I’ve not really answered is what are they main differences between Lutron and KNX? As Lutron is a central processor based with proprietary technology and KNX is a component/manufacturer open standard, does that mean the KNX open standard is the lowest common denominator (as claimed by Lutron) or does that mean you get vastly increased flexibility (as claimed by KNX)? Is Lutron only lighting control – on/off/dim or is it full integration. If KNX gives you full integration, then why would you even consider Lutron? All very valid questions…

Yes, KNX provides a holistic approach to efficient energy usage. It is not limited to lighting or heating or metering or appliances or AV or any other specific function for that matter. The KNX platform has been adopted by many highly respected major manufacturers with their vast choice of products covering all these product lines. In the longer term, this is also important to building owners, as any installation is future proofed for any changes/upgrades that could be needed. As KNX covers such a diversity of applications using one standard, it means cabling networks can be much more simplistic and single twisted pair cabling can often suffice, with multiple elements all operating together on a single network. As I’ve already mentioned briefly with DALI, a number of the KNX manufacturers have also developed ‘gateways’ to other control protocols. These simple devices are used to expand the capability of KNX control systems to provide the complete solution for a building.

KNX has also worked closely with management-level protocols such as BACnet to enable a close co-operation between these two standards when the project requires additional integration. Every KNX-compliant piece of equipment is fully tested and certified to this highly stringent standard by an independent regulatory body – It is only at this point that it can carry the KNX logo, as controlled by the international KNX Association of Brussels. Therefore there is total confidence in reliability and interoperability, whatever KNX devices are chosen. In the UK we have a growing network of integrators who have joined KNX UK to share their experiences and to help promote the standard. They can also assist consultants as well as building owners in achieving the optimum solution for their building and with KNX also accepted throughout the world (and with partnership agreements with more than 30.000 partners in more than 75 countries worldwide) from China to the United States as well as Australia and the Middle East, it truly is a worldwide standard.

Lutron on the other hand is recognised as the leading brand in terms of pure lighting control, and rightly so… It has many advantages and is easy to install, retrofitable and extremely reliable. Their systems are a proven, extensively implemented technology that offers 2-way communication, is scene capable and can dim any type of dimmable lighting. All this is backed by an industry leading company with a very long history and their systems are available in a large number of styles and finishes, all backed with a 7 year warrantee. Plus they too can integrate window/shade controls and offer relatively easy intregration with Crestron and other control systems. However, while I find it hard to criticize KNX (and again, I can hold my hands up and say yes we’re a little biased), to me there are some obvious disadvantages to Lutron. For one it only controls up to 32 lights (expandable to 64). Then there is the fact it has no dedicated processor, so it relies on an automation processor. In other words if this processor fails, then I’m afraid you have to manually override or you have no lights at all. However, the ‘biggie’  (in my experience anyway) is that expansion always seems more complicated than it needs to be and is certainly more expensive than with KNX products.

The choice of lighting control is a wide one one I’m afraid, the above is only our humble opinion.  To be honest, what you really need to do is decide what functionality you want and then see what systems can support your needs. Its important you select an installer that can advise you on the systems that you’re interested in. Price is always important, but do not make it the main point, and you need to always be thinking about upgrades/adding to the system in the future. Also think about who can you get to do changes and tweaks to the lighting control system (these things are never right first time and commercial clients and their staff especially can be very demanding)?Does the control system intergrate with other manurfacturers you may be using and don’t be afraid to ask for them to show you existing installations they’ve completed that are using the products you’re interested in. KNX is certainly the logical choice to me in terms of flexibility and meeting demand, especially if you need to integrate other systems such as heating, blinds, AV etc, but always keep an open mind and one eye on what each of these systems can deliver.

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Lighting Control at 400 year old University

February 11th, 2010

Project Type

Home to around 15,000 students and at over 400 years old, a leading Scottish University has recently made some significant improvements to their campus lighting system. “For uniformity, every lecture room has a switch with four settings for a number of years now,” said Charlie Simpson, Senior Electrical Engineer for the University, “Bright, Medium, Dim and of course Off. And this has allowed our faculty members to change the lighting for their lectures and AV presentations.”

Customer Expectations

Charlie stated at the start that professors once used the dimming features for lectures when using the old overhead projectors. However, today they use computers with PowerPoint™ presentations and DVDs, but the need to vary the lighting in the classrooms still remains the same. “For years we built our own lighting control panels, and the cost was incredibly high per classroom, plus very time consuming for me and the team” said Charlie. “Then last year ago we switched to an ‘off the shelf’ DALI dimming configuration and got rid of the old 0- to 10-volt system/ballasts we were cobbling together. The DALI solution significantly reduced our costs and saved hours in terms of installation time.

For lecture rooms and other areas or lighting applications where complex scenes/reconfigurable zones were required, DALI dimming ballasts and controls now allow users to independently control multiple lighting zones. This technology is perfect for applications requiring sophisticated dimming such as lecture halls, conference rooms, lobbies, corridors and general faculty amenities such as libraries, IT suites etc.

Customer Comment

We were made aware of the Siemens GAMMA range of sensors, actuators, gateways etc and we did a trial by installing a simple configuration in one of our conference rooms and it worked exactly as needed. Then our lamp crew put the controller through its paces and, after extensive testing, we decided to roll out across the campus. We are now able buy an off-the-shelf system for lighting control for a very reasonable price. The fact the DALI dimming system is an open standard that can be purchased ‘off-the-shelf’ is incredibly important. The great thing about DALI is that its not a custom device and our staff can easily program it to assure uniformity throughout the campus. Custom building is so expensive and time-consuming, I just can’t believe we stuck with it for so long.

Top Features

  1. Remote controls in all lecture rooms allowing control of main room functions such as lighting, HVAC etc.
  2. N 525 E switching/dimming actuators that connect the KNX EIB with digital primary switching devices that have a DALI interface. There are 8 channels, of which each one has the capacity of a switching/dimming actuator. The DALI operating devices of each individual channel are directly wired so that no further additional commissioning procedure is necessary for the primary switching devices.
  3. KNX / DALI N 141 gateways are DINrail mounted for the DALI ballasts and enable the receipt of switching and dimming commands, but also the send status information such as the failure of a lamp or the report of a detected error in the electronic ballast direct to Charlie.
  4. Sun/antidazzle protection actuators for controlling all roller blinds.
  5. Sensors for HVAC that detect the temperature and deliver the basic values for optimum control.
  6. Motion/Presence Detection in all main hallways/corridors
  7. Electrical Power Counter/Meter that allows Charlie to keep an eye on electrical power consumption at all times.

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Flagship children’s centre makes energy efficiency ...

February 8th, 2010

A newly refurbished Nursery School and Children’s Centre in the North East is using the EnergyDatastream by Synetica to monitor how much power, water, and gas is being used throughout the facility, and how this usage can be made more efficient. The EnergyDatastream communicates with the school’s building automation system to display the utility usage information that its monitoring. This data is then presented in an easy to understand format, allowing for simple data analysis.

Project Type

The local council used a retro commissioning authority to complete an audit of the Centre to determine where there were inefficiencies in the buildings’ performances. They subsequently verified the design of the energy systems and found that a number of performance areas could be dramatically improved upon if the school updated its control system. Engineers are now using a remote online log-in to view the EnergyDatastream data in order verify that the new control system design is in fact providing the energy efficient results that it was planned to do.

The school is working on additional small steps to encourage efficiency, such as lowering the temperature in the building to save costs. About 100 children currently attend the nursery school and both children and staff are encouraged to help do their part by saving water and switching off lights when they are not in a room. Now that the usage can be viewed in real-time and for specific locations using the EnergyDatastream, they will be able to develop additional strategies to help reduce water, gas and power wastage.

Upgrading the building automation system with a newer KNX control system designed for energy efficiency will also allow the Nursery School control system to be synchronised with the new refurbished Children’s Drop In Centre that is currently under development. The Drop In Centre is being designed to feature fuly integrated facilities and is scheduled for completion in March 2010. The school had noticed a sharp rise in energy use first thing in the mornings and it was established that the Drop In Centre was the cause, due primarily to the older electric water heaters being turned on when the voluntary staff arrived.

Customer Expectations

As we work to a very tight budget and are conscious of the importance of installing environmental awareness into the children, we had to look at being at the forefront of building technology and management. The ability to collect, store and transmit all our data for energy management was critical in helping us to hit and continue to maintain our objectives.

Customer Comment

We had an idea where the spike was coming from, but now that the new KNX control system and the EnergyDatastream is in place, we’ve been able to verify that it was the old Drop In Centre. The increased energy use at this time of day is when people arrive and start getting ready for the parents and children. The performance of the refurbished Drop In Centre will be greatly improved in comparison to our old one.

Top Features of the Synetica EnergyDatastream

  1. 8 x Pulse Inputs: 8 digital pulse inputs for energy meters or digital status monitoring (S0 class meter inputs)
  2. 8 x Analogue CT Inputs: 8 analogue inputs for wired current transformers
  3. Modbus RTU and TCP/IP Communications: Connects to serial Modbus enabled meters to retrieve, log and forward Modbus meter readings. Optional Modbus TCP slave to allow access via the network to internal registers including time clock, digital, analogue, EnOcean and Modbus RTU meter values.
  4. EnOcean Wireless: Optional link to EnOcean wireless sensors and Synetica’s EnOcean wireless Current Transformers (CT) to rapidly install additional wireless meter points
  5. Ethernet Interface: Built in high speed 10/100 Mbit Ethernet links to the Internet or corporate Intranet
  6. GPRS/GSM: Optional GSM/GPRS communications for remote applications
  7. Security: User ID/password security with optional guest web page access level
  8. HTTP Web Server: Built in Web server for simple device configuration and data presentation (another sample)
  9. File System: Protected file system maintains logged data when powered down
  10. CSV Files: Logged data may be exported via email / FTP / Web browser as CSV file format for use in spreadsheets and aM&T systems
  11. Email Server: Built in SMTP to send logged data via email
  12. File Transfer: Built in file transfer (FTP) can send logged data to a host computer at configurable intervals
  13. Time Synchronisation: Built in battery backed time clock with automatic synchronisation via the network (SNTP)
  14. Energy Profiling: Built in Energy profiling presents interactive charts in a Web Browser to reveal energy wastage
  15. Carbon Analysis: Built in calculation of carbon emissions included in CSV file
  16. Remote Updates: The DataStream may be updated remotely over the Ethernet network to reduce maintenance costs

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Gira shines at Mermaid Cottage

February 2nd, 2010

Project Summary

More convenience, more economy, more security… Intelligent building technology from Gira has made Mermaid Cottage, a stunning period property, both beautiful and smart. Centrally controlled house technology, time-dependent temperature control, automatic light control, keyless access and much more – everything is designed uniformly in this stunning South coast home.

Project Description

The smart building technology installed at Mermaid Cottage can be divided into three parts. For conventional installation the cottage features a selection of Gira products for electricity, light, door communication, communication technology and more. In addition to this two intelligent systems are installed that enable a high degree of comfort, security, flexibility and economy: the Gira Instabus KNX/EIB system and the Gira radio bus system:

1. Conventional installation

Mermaid cottage features socket outlets, dimmers, push switches, room temperature controllers, LED illumination, antenna connections, motion detectors, door intercom systems and more by Gira.

2. Gira Instabus KNX/EIB system

Intelligent building technology is realised within Mermaid Cottage via Gira’s flexible KNX bus technology system. Devices communicate with each other and exchange information within the system. For this an Instabus control line is installed parallel to the power line. Possibilities: requirement-specific use of lighting and heating, central control of light, blinds, ventilation and household devices, programming of specific lighting scenes, multimedia or music entertainment in all rooms, automatic watering of the garden, presence simulations and more.

3. Gira radio bus system

Mermaid cottage benefitted from simply retrofitting the intelligence, installation without the usual dirt and noise. A wide spectrum of control options have been realised such as light scenes, blind and heating control and automatic lighting, without walls having to be chopped. Communication occurs via transmitters and receivers.

Customer Comment

With Mermaid Cottage the Architect and the Client both wanted coordination, performance and that all important aesthetic appeal. Gira was selected from the start, it delivered on every level.

Top features

User Interface

Mermaid Cottage can be fully controlled via the Gira HomeServer 3, which features a uniformly structured interface design, whether a Gira/Pro-face Server Client 15, a laptop or the owners iPhone is used. Simple operation of the complex house technology – the concept of the new Gira interface focused mainly upon a high level of user friendliness, fast orientation and and a visually appealing information design. A clear and intuitive menu ensures quick access to all smart aspects of the home.

Kitchen

Intelligent functions:

  • Blind controllers for time-dependent blind control
  • Room temperature controller for heating control
  • Push button sensor for controlling, switching and dimming
  • Touchdimmer for the right lighting mood
  • Control unit M217/M218 for operating the Revox multiroom system
  • Flush-mounted radio installed into the wall
  • Info Display as a compact display and switching station for the house technology
  • Server Client 15 controls the Instabus KNX/EIB system
  • Time clock easy to start devices at the desired times
  • Radio weather station shows all weather information

Safety:

  • Smoke detector basic/VdS warns in the case of smoke formation

Socket outlets:

  • Socket outlets with child protection that protects against electrical shocks
  • Socket outlets with rotated insert for devices with angled plugs
  • Socket outlets with hinged cover above work surfaces – protects against splashes and dirt

Living Room

Intelligent functions:

  • Blind controller for time-dependent blind control
  • Room temperature controller for heating control
  • Push button sensor for controlling, switching and dimming
  • Touchdimmer for the right lighting mood
  • Control unit M217/M218 for operating the Revox multiroom system
  • TV gateway – see who is at the door via TV
  • Info Display as a compact display and switching station for the house technology
  • InfoTerminal Touch – the central switching unit for house technology
  • Time clock easy to start devices at the desired times
  • Radio weather station shows all weather information

Data connections:

  • Antenna socket outlet – excellent reception for TV and radio
  • Telephone socket outlet TAE for the right connection
  • Stereo loudspeaker connection box Music enjoyment without tangled wires
  • High-end loudspeaker plug connector for optimal sound quality
  • Universal/ISDN connection box UAE/IAE for networking of telephone and PC

Safety:

  • Smoke detector basic/VdS warns in the case of smoke formation

Socket outlets:

  • Socket outlets with child protection protects against electrical shocks
  • Socket outlets with rotated insert for devices with angled plugs
  • Socket outlets with overvoltage protection avoids damage caused by excessive voltages

Bedrooms

Intelligent functions:

  • Blind controller for time-dependent blind control
  • Room temperature controller for heating control
  • Push button sensor for controlling, switching and dimming
  • Control unit M217/M218 for operating the Revox multiroom system
  • Flush-mounted radio for installation in the wall
  • Info Display as a compact display and switching station for the house technology
  • InfoTerminal Touch – the central switching unit for house technology
  • Time clock easy to start devices at the desired times
  • Radio weather station shows all weather information

Data connections:

  • Universal/ISDN connection box UAE/IAE for networking of telephone and PC
  • Antenna socket outlet – excellent reception for TV and radio
  • Telephone socket outlet TAE for the right connection

Safety:

  • Smoke detector basic/VdS warns in the case of smoke formation
  • Panic switch – full lighting at the press of a button

Socket outlets:

  • Socket outlets with child protection protects against electrical shocks
  • Socket outlets with rotated insert for devices with angled plugs
  • Socket outlet with LED orientation light for orientation in the dark
  • Socket outlet with overvoltage protection avoids damage caused by excessive voltages

Entrance Hall

Intelligent functions:

  • Info Display as a compact display and switching station for the house technology
  • InfoTerminal Touch – the central switching unit for house technology
  • Push button sensor for controlling, switching and dimming
  • Push switch with LED insert for better orientation
  • Central circuit breaker – switch off everything at the press of a button
  • Automatic control switch – there’s always light when it’s needed

Safety:

  • Smoke detector basic/VdS warns in the case of smoke formation
  • Radio door module Dialog for activating the radio alarm system

Socket outlets:

  • Socket outlets with child protection protects against electrical shocks
  • Socket outlets with LED orientation light for orientation in the dark

Door communication:

  • Home station – informs you who is at the front door

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Gira’s instabus KNX flush-mounted actuators

February 1st, 2010

Now included in the family of Gira flush-mounted actuators are switching actuators, a universal dimming actuator and in terms of ‘recently launched’ products; a window actuator, a blind actuator and a heating actuator.

Flush-mounted actuators are used with decentral KNX/EIB installations or in KNX/EIB compound installations (DRA, flush-mounted). They are allotted space in flush-mounted boxes or in cable conduits and utilise the existing power cables. In this way cable material is saved and fire load in buildings is significantly reduced.

Existing installations can be expanded more simply to KNX/EIB with flush-mounted actuators – in addition to the existing 230 V supply – only a bus line is required for operation of the actuators.

Zero-voltage contacts can be connected to the binary inputs and they can carry out various functions independently of one another or as a ‘block’. The functions of the binary inputs are identical for all actuators, other attributes however are configured at the factory in order to make the operation possible without the need for programming.

The flush-mounted actuator is connected to the 230 V supply via a flexible cable, approx. 20 cm in length. The connection of the binary inputs and the KNX/EIB is made via a 6-wire connection cable, approx. 30 cm in length. This can be extended to a maximum of 5 m.

Two auxiliary unit inputs (or three inputs with window actuators, blind actuators and heating actuators) are for on-site operation via conventional switches or buttons, or can be freely used as binary inputs for zero-voltage contacts (with applied bus voltage).

Window actuator

The window actuator combines a blind actuator with a heating actuator. It has three binary inputs with which in delivery state the connected blind or shutter can be controlled.

Functions of inputs

Functions of switching inputs: two independent switching objects for each input present and can be enabled individually, command for rising or falling edge can be set independently (ON, OFF, CHANGE, no reaction).

Dimming: Single and double-surface operation, time between dimming and switching and dim-step size can be set, telegram repetition and stop-telegram transmission possible blind: Command can be set with rising edge (no function, UP, DOWN, CHANGE), operating concept can be configured (Step – Move – Step or Move – Step), time between step and moving mode can be set, slat adjustment time can be set.

Value transmitter and light scene auxiliary unit: Edge (push button as NO contact, push button as NC contact, switch) and value with edge can be configured, value adjustment with push button by pressing and holding button for value transmitters possible, light scene auxiliary unit with memory function and saving of the scene without previously calling up is possible.

  • Blocker for blocking individual inputs
  • Behaviour when the bus voltage returns can be configured separately for each input
  • Telegram rate limiting

Blind output

  • Behaviour after bus voltage failure and return can be set
  • Separately parameterisable movement times with movement time extension for movements into the upper end position
  • Feedback of the curtain position or slat position – Active or passive (object can be read out) cyclical feedback functions
  • Feedback can be delayed until after the return of bus voltage
  • Assignments to up to 5 different safety functions (3 wind alarms, 1 rain alarm, 1 frost alarm), or with cyclical monitoring
  • Forced setting function can be realised for each blind output
  • Solar protection function with fixed and variable curtain or slat positions can be activated
  • Inclusion in scenes possible, maximum of 8 internal scenes can be parameterised per channel
  • Memory function for light scenes

Heating output

  • Output controllable with a corrected variable (1 bit or 1 byte)
  • Status feedback (1bit or 1byte) automatically or on read request
  • Valve control (open/closed while deenergised) can be configured
  • Summer or winter operation can be selected via an object
  • Cyclical monitoring of the corrected variable; if a corrected variable telegram remains off within a monitoring period, the output switches into emergency mode and an alarm message is sent
  • The output can be locked in a forced position, and different values are possible for summer and winter operation
  • Behaviour when the bus voltage returns and fails can be configured separately for each output
  • Overload or short-circuit message via an object can be set
  • Control of valve drives with switching operation or PWM operation
  • Protective function for locked valve

Technical data

  • Rated voltage: AC 230 V/50 Hz
  • Connected load of blind output: switching current AC1: 3 A, motors: 600 VA
  • Connected load of heating output: contact type: Triac, switching current 5 to 25 mA, drives per output: max. 2
  • Number of inputs: 3
  • Protection type: IP 20
  • Temperature range: – 5 °C to + 45 °C
  • Dimensions: 51 × 48 × 28 mm (L × B × H)
  • Load line connection: with enclosed spring plug-in terminal
  • Installation: flush-mounted wall box (Gira recommend the electronics box from Kaiser)

Installation

The actuators are installed flush-mounted in a wall box (electronics box from Kaiser recommended). Sufficient insulation must be provided between the 230 V cable and the bus or auxiliary units. The minimal distance between bus/auxiliary unit wires and 230 V wires is 4 mm.

Heating actuator

The heating actuator is used for switching electrothermic valve drives for heating systems. It has two binary inputs to which zero-voltage contacts can be connected for monitoring of a window contact for example.

Functions of inputs

Functions of switching inputs: two independent switching objects for each input present and can be enabled individually, command for rising or falling edge can be set independently (ON, OFF, CHANGE, no reaction).

Dimming: Single and double-surface operation, time between dimming and switching and dim-step size can be set, telegram repetition and stop-telegram transmission possible blind: Command can be set with rising edge (no function, UP, DOWN, CHANGE), operating concept can be configured (Step – Move – Step or Move – Step), time between step and moving mode can be set, slat adjustment time can be set.

Value transmitter and light scene auxiliary unit: Edge (push button as NO contact, push button as NC contact, switch) and value with edge can be configured, value adjustment with push button by pressing and holding button for value transmitters possible, light scene auxiliary unit with memory function and saving of the scene without previously calling up is possible.

  • Blocker for blocking individual inputs
  • Behaviour when the bus voltage returns can be configured separately for each input
  • Telegram rate limiting

Heating output

  • Output controllable with a corrected variable (1 bit or 1 byte)
  • Status feedback (1bit or 1byte) automatically or on read request
  • Valve control (open/closed while deenergised) can be configured
  • Summer or winter operation can be selected via an object
  • Cyclical monitoring of the corrected variable; if a corrected variable telegram remains off within a monitoring period, the output switches into emergency mode and an alarm message is sent
  • The output can be locked in a forced position, and different values are possible for summer and winter operation
  • Behaviour when the bus voltage returns and fails can be configured separately for each output
  • Overload or short-circuit message via an object can be set
  • Control of valve drives with switching operation or PWM operation
  • Protective function for locked valve

Technical data

  • Rated voltage: AC 230 V/50/60 Hz
  • Connected load of heating output: contact type: Triac, switching current 5 to 25 mA, drives per output: max. 2
  • Number of inputs: 3
  • Protection type: IP 20
  • Temperature range: – 5 °C to + 45 °C
  • Dimensions: 51 × 48 × 28 mm (L × B × H)

Installation

The actuators are installed flush-mounted in a wall box (electronics box from Kaiser recommended). Sufficient insulation must be provided between the 230 V cable and the bus or auxiliary units. The minimal distance between bus/auxiliary unit wires and 230 V wires is 4 mm.

Blind actuator

The blind actuator controls blinds, shutters and awnings and has two inputs factory-assigned to the blind actuator.

Functions of inputs

Functions of switching inputs: two independent switching objects for each input present and can be enabled individually, command for rising or falling edge can be set independently (ON, OFF, CHANGE, no reaction).

Dimming: Single and double-surface operation, time between dimming and switching and dim-step size can be set, telegram repetition and stop-telegram transmission possible blind: Command can be set with rising edge (no function, UP, DOWN, CHANGE), operating concept can be configured (Step – Move – Step or Move – Step), time between step and moving mode can be set, slat adjustment time can be set.

Value transmitter and light scene auxiliary unit: Edge (push button as NO contact, push button as NC contact, switch) and value with edge can be configured, value adjustment with push button by pressing and holding button for value transmitters possible, light scene auxiliary unit with memory function and saving of the scene without previously calling up is possible.

  • Blocker for blocking individual inputs
  • Behaviour when the bus voltage returns can be configured separately for each input
  • Telegram rate limiting

Output functions

  • Behaviour after bus voltage failure and return can be set
  • Separately parameterisable movement times with movement time extension for movements into the upper end position
  • Feedback of the curtain position or slat position, active or passive (object can be read out) cyclical feedback functions
  • Feedback can be delayed until after the return of bus voltage
  • Assignments to up to 5 different safety functions (3 wind alarms, 1 rain alarm, 1 frost alarm), or with cyclical monitoring
  • Forced setting function
  • Solar protection function with fixed and variable curtain or slat positions can be activated
  • Inclusion in scenes possible, maximum of 8 internal scenes can be parameterised per channel
  • Memory function for light scenes

Technical data

  • Rated voltage: AC 230 V/50/60 Hz
  • Connected load: motors 600 VA
  • Number of inputs: 2
  • Protection type: IP 20
  • Temperature range: – 5 °C to + 45 °C
  • Dimensions: 51 × 48 × 28 mm (L × B × H)
  • Load line connection: with enclosed spring plug-in terminal
  • Installation: flush-mounted wall box (Gira recommend the electronics box from Kaiser)

Installation

The actuators are installed flush-mounted in a wall box (electronics box from Kaiser recommended). Sufficient insulation must be provided between the 230 V cable and the bus or auxiliary units. The minimal distance between bus/auxiliary unit wires and 230 V wires is 4 mm.

About Gira

Gira places great value on product design. Through intensive cooperation with external and in-house design teams, Gira develop products, which are repeatedly recognized for their exceptional and simple design.

The modern electrical installation from Gira offers a broad range of intelligent building technology for convenience and security. Devices for networking home technology, music control for all rooms and comprehensive switch ranges, plus numerous functions for door communication, energy and light outdoors – and it all fits together. All functions and devices can be easily combined, and the uniform design lines always offer the right cover frame for every purpose.

The GiraShop.co.uk supplies the complete range of products that are currently available in the English language catalogue.

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Omnio RATIO Room Temperature Sensor RTF103

January 3rd, 2010

The innovative Ratio®-room temperature sensor RTF103 by Omnio is an effective battery and maintenance free radio bus system for building automation.

Conventional electrical installations for lighting, shading, heating and security have reached their limits… As soon as the requirements exceed basic installation principles, installations using conventional technology become complex and expensive. The battery-free radio bus system Ratio® with EnOcean technology facilitates electrical installations, allows for a number of useful functions, increases comfort and security. It is environment-friendly and extremely economical.

The power generation is effected by transmission of roomlight into electrical energy from a solargenerator. It conduces to the measuring of the rooms temperature and the transmission by radio to the radio senders and actuators/gateways. By its very flat construction it can be installed on walls and even on glass. Short roomlight for the power generation means the temperature sensor can also be run with a battery.

The Ratio® switch actuators/receivers are activated by radio signals from the Ratio® radio senders. Each sender can actuate an indefinite number of actuators/receivers. The Ratio® radio senders have a fixed address and are programmed into Ratio® receivers (actuators). The Ratio® switch actuators activate various functions such as light bulbs, blinds, gates, doors, control valves etc.

Product & Function Description

The battery-free Ratio® temperature radio sensor is mounted on a wall and regulates temperature and air conditioning. It is used in combination with the receiver UPT and REGH or different gateways to connect to superordinate regulating systems. At each value change or in a 15 minutes interval, a radio signal (EnOcean standard) is sent that is received and analyzed by all Ratio® radio bus receivers. The Ratio® room temperature radio sensor is mounted to glass using adhesive or on walls, etc. using adhesive or screws.

Primary Functions

With the Ratio® room temperature radio sensor, the following signals are sent:

  • Measuring and transmitting actual values
  • Measuring and transmitting index values
  • Measuring and transmitting the position of the operation mode switch

The receiving unit analyzes the transmitted radio telegram.

Technical Data

  • Sending frequency 868,3 MHz, band width +- 120KHz
  • Sending capacity 10 mW
  • Modulation type ASK
  • Power supply by solar generator, buffering by condenser, battery-free

Measuring Values

  • Actual value: temperature: 0 .. 40°C ; conversion 8 Bit linear and Measuring accuracy: +- 1K
  • Index value: Adjustment +5 ..+30 °C ; conversion 8 Bit linear and Measuring accuracy: +- 1K
  • Operation mode switch with 4 positions

Operational Elements

  • 1 Stk. LRN key for sending the programming telegram

Mechanical Data

  • Casing is synthetic ABS
  • Measurements: WxHxD 80mm x 80mm x 16mm
  • Mounting: Screws or adhesive with adhesive strip
  • Weight: approx. 70g

Electric Security

  • Protection: IP20
  • Protection class III (small voltage protection, DIN EN 60730-1

Surrounding Conditions

  • Environmental temperature when in operation: -20°…+ 45° C
  • Operating temperature range: 0°C – +50°C
  • Storing temperature: -25…+ 70° C
  • Relative humidity (not condensing): 5.93%
  • Bedewing not admissible

The Omnio RATIO Room Temperature Sensor is available now from EnOceanshop.co.uk.

To find out more about Omnio and their products, please visit Omnio.ch

 

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KNX intelligent building technology can save energy by ...

November 30th, 2009

UMPNVB82SBGBIndustrial sites consume huge amounts of energy with non dwellings thought to be responsible for around 20% of the UK’s total energy usage. New building regulations implemented in April 2006 have gone some to way to encouraging building owners who are refurbishing to install energy efficient technology. However, there are still greater savings to be made, but surprisingly little awareness of how to achieve them. Managers and Engineers in industrial spaces are now turning away from traditional building management systems and instead looking towards intelligent building control technologies to provide the solution to energy management challenges.

But what is an ‘intelligent building’?

Today it is widely accepted as a space where all elements lighting, heating, security, access control, ventilation are able to respond in real time to the users’ needs and building occupancy patterns. The potential benefits and return on investment from an integrated building are highly tangible lower energy costs, security and enhanced facilities management. To achieve this level of ‘intelligence’ an international building control standard called KNX has been developed. Agreed by the leading manufacturers in Europe, it allows the integration of a range of products from a range of manufacturers using a simple software tool, essentially allowing them to ‘talk’ to one another and work together. The system has been designed for ease of installation with just a simple twin-core ‘highway’ cable needed (installed in addition to the mains cabling); none of the layers of cables associated with conventionally cabled systems.

Significant energy savings provide building managers and owners with a highly cost-effective way of ensuring energy is conserved. Once installed, it allows users to automatically carry out energy management and building control tasks such as the control, monitoring and optimisation of building services and load management. Using features such as room temperature management and zoned temperature control which allows separate heating settings for different areas of the building, KNX delivers a reduction in a building’s energy consumption of up to 40%.

One of the key benefits of KNX is its ability to deliver significant energy savings through lighting control. A lighting control system can be simply configured so that lights are only ‘on’ when someone is present in a room, or in a zone of a large industrial space. Russell Downing, specification manager at Siemens, explains:

“A KNX system can also monitor natural daylight levels to dim or turn the lights off when enough ambient light is present. In large industrial spaces where there may be several thousand luminaires turned on 24/7, the ability to automatically make use of natural daylight while still providing the level of light needed results in substantial energy savings. By employing these simple measures, effective use of lighting control alone can result in energy savings of up to 30-40%.”

Breaking down the barriers Mr Downing believes that KNX is not comparable to many other control systems:

“Many conventional control systems stop short of delivering the full functionality of an ‘intelligent building’: A significant human element is required for optimal effective operation even if control systems are correctly specified and installed.Understanding the concept of KNX is vital, in order to appreciate the true benefit of the available functionality and the impacts of being able to control all aspects of a building from a central point.”

According to Siemens, it does not cost the earth to integrate an Intelligent Building Control system. With consideration paid to the ever rising cost of energy prices, investment in an open control standard like KNX is a reasonable one. As Russell Downing says,

“This is all about future proofing a building. If all buildings had KNX installed as standard,the UK would be well on the way to achieving its energy reduction targets and businesses would benefit from saving money on the bottom line.The concept of an energy efficient building is not only desirable, but for regulators, purchasers and industrial managers it is also essential.”

Visit Siemens.co.uk to find out more about their building technology product range.

UMPNVB82SBGB

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